CN114496601A - a switch assembly - Google Patents

Abstract

The present invention provides a switch assembly comprising: the first switch comprises a first electromagnet, a first contact, a first linkage bridge and a first position sensing element, and the first electromagnet is electrified to drive the first linkage bridge, so that the first linkage bridge drives the first contact to realize contact or disconnection, and the first linkage bridge triggers the first position sensing element; the second switch comprises a second electromagnet, a second contact, a second linkage bridge and a second position sensing element, and the second electromagnet is electrified to drive the second linkage bridge, so that the second linkage bridge drives the second contact to realize contact or disconnection, and the second linkage bridge triggers the second position sensing element; and a frame including a first mount and a second mount, the first and second switches being mounted in the first and second mounts, respectively. The switch assembly has the advantages of compact structure, simple installation and wiring and rich functions.

Description

a switch assembly

technical field

The invention relates to the field of electrical technology, in particular to a switch assembly.

Background technique

Switches are common electrical components in electrical circuits. Some switches have electromagnets, which can control the movement of a moving part through the magnetic field generated by the electromagnet, which in turn controls the on and off of the circuit. However, when a plurality of switches are included in the circuit, the existing switches are usually separated from each other, causing cumbersome and inconvenient installation and wiring. In addition, the existing switch function is relatively simple, and has no additional functions other than realizing circuit on and off, such as the function of sensing the movement of the movable part.

SUMMARY OF THE INVENTION

In order to solve the above problems, the embodiments of the present invention aim to provide a switch assembly, which can integrate more than two switches and provide the switches with more abundant functions.

The invention provides a switch assembly, comprising: a first switch, the first switch includes a first electromagnet, a first contact, a first linkage bridge and a first position sensing element, and the first electromagnet is energized to drive the first linkage bridge, so that the first linkage bridge drives the first contact to realize contact or disengagement, and makes the first linkage bridge trigger the first position sensing element; the second switch, the second switch includes a second electromagnet, a second contact, The second linkage bridge and the second position sensing element, after the second electromagnet is energized, drives the second linkage bridge, so that the second linkage bridge drives the second contact to achieve contact or disengagement, and makes the second linkage bridge trigger the second position a sensing element; and a frame, the frame including a first mount and a second mount in which the first and second switches are mounted, respectively.

According to a specific embodiment of the present invention, the first electromagnet includes a first contact coil and a first release coil. After the first contact coil is energized, the first contact is connected. After the first release coil is energized, the first contact is connected. The contact is disconnected; the second electromagnet includes a second contact coil and a second disconnection coil, after the second contact coil is energized, the second contact is connected, and after the second disconnection coil is energized, the second contact is realized disengage.

According to a specific embodiment of the present invention, the first position sensing element includes a first micro switch. When the first contact coil is energized and the first electromagnet drives the first linkage bridge to move to the end position, the first linkage bridge triggers the first linkage bridge. A microswitch such that the first microswitch opens the circuit of the first contact coil and allows the circuit of the first trip coil to be closed, when the first trip coil is energized and the first electromagnet drives the first linkage bridge When moving to the end position, the first linkage bridge triggers the first microswitch, so that the first microswitch disconnects the circuit of the first release coil and allows the circuit of the first contact coil to be closed; the second position sensing The element includes a second micro-switch, and when the second contact coil is energized and the second electromagnet drives the second linkage bridge to move to the end position, the second linkage bridge triggers the second micro-switch, so that the second micro-switch switches the second micro-switch. The circuit of the contact coil is opened and allows the circuit of the second trip coil to be closed, when the second trip coil is energized and the second electromagnet drives the second linkage bridge to the end position, the second linkage bridge activates the second micro The switch is moved so that the second microswitch opens the circuit of the second disconnect coil and allows the circuit of the second contact coil to be closed.

According to a specific embodiment of the present invention, the first position sensing element includes a first position sensor, and when the first contact coil is energized and the first electromagnet drives the first linkage bridge to move to the end position, the first linkage bridge triggers the first linkage bridge a position sensor such that the first position sensor sends a signal to open the circuit of the first contact coil and allow the circuit of the first trip coil to be closed when the first trip coil is energized and the first electromagnet drives the first linkage bridge When moving to the end position, the first linkage bridge triggers the first position sensor so that the first position sensor sends a signal to open the circuit of the first trip coil and allow the circuit of the first trip coil to be closed; the second position The sensing element includes a second position sensor that triggers the second position sensor when the second contact coil is energized and the second electromagnet drives the second linkage bridge to the end position, causing the second position sensor to send a signal to The circuit of the second contact coil is opened and allows the circuit of the second release coil to be closed. When the second release coil is energized and the second electromagnet drives the second linkage bridge to the end position, the second linkage bridge triggers the first linkage bridge. Two position sensors such that the second position sensor sends a signal to open the circuit of the second trip coil and allow the circuit of the second trip coil to be closed.

According to a specific embodiment of the present invention, the first switch further includes a first magnetic retaining structure, and the first magnetic retaining structure includes a first movable member, a first contact position fixing member and a first disengaging position fixing member, and the first movable member Connected with the first linkage bridge, when the first linkage bridge drives the first contact to make contact, the first movable piece moves to contact with the first contact position fixed piece and attracts magnetically, thereby maintaining the contact of the first contact. When a linkage bridge drives the first contact to be disengaged, the first movable piece moves to contact with the fixed piece at the first disengaged position and attracts magnetically, thereby maintaining the disengagement of the first contact; the second switch also includes a second magnetic Holding structure, the second magnetic holding structure includes a second movable piece, a second contact position fixing piece and a second disengaging position fixing piece, the second movable piece is connected with the second linkage bridge, when the second linkage bridge drives the second contact When the contact is achieved, the second movable member moves to contact with the second contact position fixed member and attracts magnetically, thereby maintaining the contact of the second contact. When the second linkage bridge drives the second contact to disengage, the second movable member Move to contact with the second disengagement position fixing piece and magnetically attract, so as to keep the disengagement of the second contact.

According to a specific embodiment of the present invention, the first and second movable members are both made of permanent magnets, and the first and second contact position fixing members and the first and second disengagement position fixing members are both made of magnetic steel.

According to a specific embodiment of the present invention, the first and second switches are mirror-symmetrically mounted in the first and second mounts such that the first and second electromagnets are close to the outside of the frame, and the first and second linkage bridges are close to the middle of the frame.

According to a specific embodiment of the present invention, the first mounting seat includes a first recess, a first slide, and a first recess, a first electromagnet, a first movable member, a first contact position fixing member, and a first disengagement position The fixing piece is installed in the first recess, the first linkage bridge and the first position sensing element are installed in the first slide, the first contact is installed in the first recess; the second mounting seat includes a second recess, a second The slideway and the second recess, the second electromagnet, the second movable piece, the second contact position fixing piece, the second disengaging position fixing piece are installed in the second recess, the second linkage bridge and the second position sensing element are installed In the second slide, the second contact is mounted in the second recess.

According to a specific embodiment of the present invention, the frame includes an upper beam, a lower beam, a left beam, a right beam and a middle column, the upper beam, the left beam, the lower beam and the middle column surround the first mounting seat, the upper beam, the right beam, The lower beam and the middle column surround the second mount.

According to a specific embodiment of the present invention, the first and second slideways are arranged in parallel on both sides of the middle column, the first notch is arranged between the first slideway and the left beam, and the second notch is arranged on the second slideway and the right beam, the first recess is provided between the first recess and the upper beam, and the second recess is provided between the second recess and the upper beam.

According to a specific embodiment of the present invention, the frame further includes a bottom plate, which is disposed on the rear sides of the upper beam, the lower beam, the left beam, the right beam and the middle column as the bottoms of the first and second mounting seats.

According to the switch assembly of the present invention, the on-off of the switch and the triggering of the position sensing element are simultaneously realized through the linkage bridge, which is beneficial to increase the function of the switch assembly. In addition, installing two switches together through a frame to form a switch assembly is beneficial to increase the compactness of the entire circuit structure requiring two switches, and facilitate the wiring and installation of the entire circuit. Structurally, this switch assembly supports direct installation on the circuit board, supports high-voltage arc extinguishing of the contacts through circuit setting, and supports the function setting of combining the drive circuit and the switch assembly into one.

Description of drawings

The above and other objects, features and advantages of the present application will become more apparent from the detailed description of the embodiments of the present application in conjunction with the accompanying drawings. The accompanying drawings are used to provide a further understanding of the embodiments of the present application, constitute a part of the specification, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation to the present application. In the drawings, the same reference numbers generally refer to the same or similar parts.

FIG. 1 is a schematic structural diagram of a switch assembly according to an embodiment of the present invention;

2 is a perspective view of a switch assembly according to an embodiment of the present invention;

FIG. 3 is a front view of the switch assembly according to the embodiment of FIG. 2;

FIG. 4 is a right side view of the switch assembly according to the embodiment of FIG. 2;

FIG. 5 shows a top view of the switch assembly according to the embodiment of FIG. 2 .

Detailed ways

In order to make the concept and idea of the present invention more clearly understood by those skilled in the art, the present invention will be described in detail below with reference to specific embodiments. It should be understood that the embodiments presented herein are only a part of all possible embodiments of the invention. After reading the description of the present application, those skilled in the art have the ability to make improvements, transformations, or replacements on part or the whole of the following embodiments, and these improvements, transformations, or replacements are also included in the scope of protection of the present invention.

As used herein, the terms "first," "second," and other similar words are not intended to imply any order, quantity, or importance, but are merely used to distinguish between different elements. As used herein, the terms "a", "an" and other similar words are not intended to mean that there is only one of the said things, but rather that the description is for only one of the said things, which may have one or more . As used herein, the terms "comprises," "includes," and other similar words are intended to denote logical interrelationships and should not be construed to denote spatial structural relationships. For example, "A includes B" is intended to mean that logically B belongs to A, not that B is spatially internal to A. Additionally, the terms "comprising," "including," and other similar words are to be taken as open-ended rather than closed-ended. For example, "A includes B" means that B belongs to A, but B does not necessarily constitute the whole of A, and A may also include other elements such as C, D, and E.

In this document, the terms "embodiment", "this embodiment", "an embodiment", "one embodiment" do not mean that the description applies to only one particular embodiment, but rather that the description may also apply to in one or more other embodiments. It should be understood by those skilled in the art that, in this document, any description made with respect to a certain embodiment can be substituted, combined, or combined in other ways with the relevant descriptions in another one or more embodiments. New embodiments generated by combining or combining in other ways can be easily conceived by those skilled in the art, and belong to the protection scope of the present invention.

In various embodiments of the present invention, a switch may refer to a component capable of controlling the on-off of a circuit. Depending on the structure, switches can be classified into switches that include one or more contacts and switches that do not include contacts. A switch that does not include a contact is, for example, a proximity switch, which utilizes the sensitivity of a displacement sensor to an approaching object to achieve the purpose of controlling the on-off of the circuit. According to the classification of use, switches can be divided into fluctuation switches, band switches, recording and playback switches, power switches, pre-selection switches, limit switches, control switches, transfer switches, isolation switches, travel switches, wall switches, intelligent fire switches, etc. According to the structural classification, switches can be divided into micro switches, rocker switches, toggle switches, toggle switches, push button switches, key switches, membrane switches, point switches, etc. According to the operation mode, the switches can be divided into single-control switches, double-control switches, multi-control switches, dimmer switches, speed control switches, doorbell switches, induction switches, touch switches, remote control switches, smart switches, card power-taking switches, etc. .

In various embodiments of the present invention, a switch assembly may refer to a structure composed of at least two switches and (possibly possessed) related components, capable of realizing switch functions and (possibly possessed) additional functions.

The switch assembly of the present invention can be applied to, for example, a protection circuit of a lithium battery pack, and the protection circuit is used to solve the long-standing problem of battery thermal runaway. The protection circuit includes a switch for preventing overcharge and a switch for preventing overdischarge. In the art, these two switches are usually separated, resulting in complicated installation and troublesome wiring.

FIG. 1 shows a schematic structural diagram of a switch assembly 100 according to an embodiment of the present invention.

The switch assembly 100 according to the present embodiment includes: a first switch 101 including a first electromagnet 111 , a first contact 131 , a first linkage bridge 121 and a first position sensing element 141 , the first electromagnet After the 111 is powered on, the first linkage bridge 121 is driven, so that the first linkage bridge 121 drives the first contact 131 to contact or disengage, and makes the first linkage bridge 121 trigger the first position sensing element 141; the second switch 102, the first The second switch 102 includes a second electromagnet 112 , a second contact 132 , a second linkage bridge 122 and a second position sensing element 142 . After the second electromagnet 112 is powered on, the second linkage bridge 122 is driven, so that the second linkage bridge 122 Drive the second contact 132 to make contact or disengage, and make the second linkage bridge 122 trigger the second position sensing element 142; and the frame 160, the frame 160 includes the first mounting seat 151 and the second mounting seat 152, the first and The second switches 101, 102 are mounted in the first and second mounts 151, 152, respectively.

According to this embodiment, the on-off of the switch and the triggering of the position sensing element are simultaneously realized through the linkage bridge, which is beneficial to increase the function of the switch assembly 100 . In addition, mounting the two switches together through the frame to form the switch assembly 100 is beneficial to increase the compactness of the entire circuit structure requiring two switches, and facilitate the wiring and installation of the entire circuit.

In one embodiment, the electromagnet may refer to a device that generates a magnetic field after being energized. In one embodiment, the electromagnet may include an iron core and a coil wound on the iron core. After the coil is energized, the iron core is magnetized, so that the iron core generates a magnetic force like a magnet, and the magnetic force disappears after the coil is de-energized. According to the current form, electromagnets can be divided into AC electromagnets and DC electromagnets. According to the purpose, electromagnets can be divided into braking electromagnets, lifting electromagnets, valve electromagnets, traction electromagnets, etc.

In one embodiment, the contacts ( 131 , 132 ) may refer to a structure that can respectively realize the connection and disconnection of the circuit through the contact and release of the two conductive parts. According to the different movement modes of the contacts, the contacts can be divided into contacts consisting of a moving contact and a static contact (the moving contact moves to contact with the static contact), and a contact consisting of two moving contacts. point (two moving contacts approach each other until they touch), a contact consisting of one moving contact and two stationary contacts (the moving contact moves between the two stationary contacts), etc. According to the different contact structures, contacts can be divided into a-type contacts, b-type contacts, and c-type contacts. Among them, the a-type contact can refer to a normally open contact, that is, under normal conditions, the two contacts that constitute the contact are separated, and the contacts are in contact after the switch button is pressed; the b-type contact can refer to Normally closed contacts, that is, under normal conditions, the two contacts that constitute the contacts are in contact, and the contacts are disengaged when the switch button is pressed; the c-type contact can refer to two static contacts and A moving contact, the moving contact moves between two stationary contacts, the circuit is disconnected when the moving contact is in contact with one of the stationary contacts, and the circuit is connected when it is in contact with the other stationary contact.

In one embodiment, the linkage bridge (121, 122) may refer to an intermediate transmission member capable of driving or realizing the linkage of two or more components, for example, capable of realizing the linkage between the contact and the position sensing element (that is, simultaneously touching the contact and the position sensing element). position sensing element). In one embodiment, the linkage bridge may refer to an elongated rod-shaped member, one end is connected to the contact, the other end is connected to the position sensing element, and the translational movement of the rod-shaped member causes both the movement of the contact and the triggering of the position sensing element; It can also refer to a pivotable part, one side of the pivot point is connected to the contact, the other side is connected to the position sensing element, the pivoting of the pivotable part causes the movement of the contact and the triggering of the position sensing element ; It can also refer to an elastic member, the elastically movable part thereof is connected to the contact point and the position sensing element at the same time, and when the part moves, it simultaneously causes the movement of the contact point and the triggering of the position sensing element.

In one embodiment, the position sensing element (141, 142) may refer to an element having a position sensing function and capable of making corresponding actions or responses according to the sensed position information. In one embodiment, the position sensing element is independent of the contact, ie the reaction of the contact to the movement of the linkage bridge does not belong to the reaction of the position sensing element. In one embodiment, the position sensing element can be used to sense the position or movement of the linkage bridge, and make corresponding reactions or responses according to the position change or motion state of the linkage bridge. In one embodiment, the position sensing element may refer to a micro switch. In this case, the subtle movement of the linkage bridge triggers the response of the micro switch, causing the micro switch to turn on or off; it may also refer to the micro switch. Proximity switch, in this case, the movement of the linkage bridge close to or away from the proximity switch causes the proximity switch to react, making the proximity switch switch on or off the circuit; it can also refer to the position sensor, in this case, the linkage The movement of the bridge is sensed by the position sensor, and the position sensor sends different signals to a certain control circuit according to the different movements of the linkage bridge; it can also refer to the camera. In this case, the movement of the linkage bridge is captured by the camera, and the camera will link the bridge. The moving images are transmitted to the control center, and the control center issues different instructions according to the different actions of the linkage bridge.

In one embodiment, after the electromagnet is energized, the linkage bridge is driven, which may mean that the magnetic field generated after the electromagnet is energized acts on the linkage bridge, causing the linkage bridge to move. In one embodiment, after the electromagnet is energized, the linkage bridge is driven, and the implementation method may be that the magnetic field generated by the electromagnet passes through the iron core, so that the iron core is magnetized, and a magnetic attraction force for the linkage bridge is generated, so that the linkage bridge moves; It can also be that the magnetic field generated after the electromagnet is energized passes through the iron core, so that the iron core is magnetized, and a magnetic attraction force for a transmission part is generated, so that the transmission part moves, and the movement of the transmission part is transmitted to the linkage bridge, and then the linkage bridge occurs. sports.

In one embodiment, the linkage bridge drives the contacts to make contact or disengage, which may mean that the movement of the linkage bridge causes the related parts of the contacts to move, and the movement of the contact parts in turn causes the contacts to cause the circuit to be connected or disconnected. A broken contact or disengagement action. In one embodiment, the linkage bridge drives the contacts to make contact or disengage. The realization method may be that the linkage bridge is operatively connected with the moving contacts in the contacts, and the movement of the linkage bridge drives the moving contacts to move, so that the moving contacts The contact or disengagement of the head and the static contact in the contact; it is also possible that the movement of the linkage bridge causes a transmission part to move, and the movement of the transmission part causes the moving contact of the contact to move, so that the moving contact and the static contact Contact or disengagement occurs; it is also possible that the linkage bridge is operatively connected to the two movable contacts of the contact, and the movement of the linkage bridge causes the two movable contacts to approach or move away from each other, thereby causing the contacts to contact or disengage.

In one embodiment, the linkage bridge triggers the position sensing element, which may mean that the linkage bridge causes the position sensing element to react. In one embodiment, the linkage bridge triggers the position sensing element, which can be realized by moving the linkage bridge to the vicinity of the position sensing element, and the position sensing element senses that the linkage bridge enters the sensing range, and generates a corresponding response It can also be that the linkage bridge moves to the part that contacts or pushes the position sensing element, and the part converts the contact or push of the linkage bridge into a corresponding signal and transmits it to the position sensing element, and the position sensing element makes a corresponding reaction action ; It can also be that the position sensing element monitors the linkage bridge in real time, and once any movement of the linkage bridge occurs, the position sensing element produces a corresponding reaction action.

In one embodiment, after the electromagnet is energized, the linkage bridge is driven, so that the linkage bridge drives the contacts to contact or disengage, and the linkage bridge triggers the position sensing element, which may mean that the linkage bridge moves after the electromagnet is energized, Such movement of the linkage bridge causes movement of parts or moving contacts of the contacts to cause contact or disengagement of the contacts, and the movement of the linkage bridge also causes the position sensing element to produce a certain reaction action.

In one embodiment, the frame 160 may refer to a structure that supports and/or protects the switch assembly 100 as a whole, and is an independent part of the switch assembly 100, rather than a macroscopic structure, such as the entire circuit, battery management system. Or the rack or housing of the battery module. In one embodiment, the mounting seat may refer to a structure capable of allowing the object to be mounted to be mounted in a certain position and achieve corresponding supporting and/or protective functions, such as a platform, a recess, a bracket, a housing, and the like.

In one embodiment, the frame 160 includes a first mounting seat 151 and a second mounting seat 152, which may mean that the overall structure of the frame 160 has a portion for mounting two switches, rather than the mounting structures of the two switches being mutually exclusive. separated and seen as a frame. In one embodiment, the frame 160 includes a first mounting seat 151 and a second mounting seat 152 , which may mean that the two mounting seats constitute a component of the frame 160 , and the two mounting seats are connected to the frame 160 through other parts of the frame 160 . Together. In one embodiment, the frame 160 includes a first mounting seat 151 and a second mounting seat 152, which may be implemented by having two notches in the rigid integral structure of the frame 160 for mounting two switches, the two The notch is surrounded by the main part of the frame 160 structure, and the two notches form two mounting seats; alternatively, a plurality of rod-shaped support structures of the frame 160 enclose a space, which is enough to accommodate two switches , two switches are installed in this space and are fixedly connected with the support structure of the frame 160 in multiple directions, and this space forms two mounting seats; it is also possible that the frame 160 is a sealed housing with two There are two bases, two switches are respectively installed on the two bases and surrounded by a sealed shell, and the space between the two bases and their upper parts forms two mounting seats.

In one embodiment, the switch is installed in the mounting seat, which may mean that each component of the switch is fixed or connected to the corresponding position preset by the mounting seat, so that the switch can be securely installed in the mounting seat and perform predetermined functions. function. In one embodiment, the first and second switches 101 and 102 are installed in the first and second mounting seats 151 and 152 respectively, which may mean that the first switch 101 is installed in the first mounting seat 151 and the second switch 102 is mounted in a second mount 152 .

Another embodiment according to the present invention is described below. This embodiment is a specific example of the embodiment in FIG. 1 , and may include one or more features of one or more of the above-mentioned embodiments.

According to this embodiment, the first electromagnet 111 includes a first contact coil and a first release coil. After the first contact coil is energized, the first contact 131 is turned on. After the first release coil is energized, the first contact 131 is disconnected; the second electromagnet 112 includes a second contact coil and a second disconnect coil, after the second contact coil is energized, the second contact 132 is connected, and after the second disconnect coil is energized, the second contact 132 to achieve disengagement.

According to this embodiment, the coils of the electromagnet are superimposed coils, including two groups of coils with different winding directions, which can respectively implement magnetic forces in different directions, thereby facilitating the generation of movements in different directions. Switching the direction of the magnetic force by stacking the coils can simplify the circuit and avoid the need for currents in different directions to generate magnetic forces in different directions.

In one embodiment, the coil may refer to a winding formed by winding wires insulated from each other. According to the nature of the magnetic conductor, the coils can be divided into air core coils, ferrite coils, iron core coils, copper core coils, etc. According to the classification of work properties, coils can be divided into antenna coils, oscillator coils, choke coils, trap coils, deflection coils, etc. According to the classification of winding structure, coils can be divided into single-layer coils, multi-layer coils, honeycomb coils, superimposed coils, etc. The superimposed coil may refer to a coil formed by winding two or more wires. In one embodiment, the contact coil may refer to a coil capable of generating a magnetic force to make the contacts turn on after being energized. In one embodiment, the disconnection coil may refer to a coil capable of generating a magnetic force to cause the contacts to disengage after being energized.

In one embodiment, the electromagnet includes a contact coil and a release coil, which may mean that the coil of the electromagnet can be divided into two sections, that is, two wires that are not connected to each other are wound. In one embodiment, the electromagnet includes a contact coil and a release coil, which may mean that the coil of the electromagnet is a superimposed coil, and the superimposed coil includes two sets of coils with different winding directions. In one embodiment, the two sets of coils of the superimposed coils may be two-segment coils distributed along the axial direction of the iron core, or may be two-layer coils distributed along the radial direction of the iron core.

In one embodiment, after the contact coil is energized, the contacts are turned on, which may mean that after the contact coil is energized, the electromagnet generates a magnetic force, and the magnetic force causes the linkage bridge to move in one direction, so that the linkage bridge drives the contacts to connect. action until the contacts are closed and the circuit is closed. In one embodiment, after the disconnection coil is energized, the contacts are disconnected, which may mean that after the disconnection coil is energized, the electromagnet generates a magnetic force, and the magnetic force causes the linkage bridge to move in the other direction, so that the linkage bridge drives the contacts. Disengagement action occurs until the contacts are disengaged and the circuit is disconnected.

Another embodiment according to the present invention is described below. This embodiment is a specific example of the embodiment in FIG. 1 , and may include one or more features of one or more of the above-mentioned embodiments.

According to this embodiment, the first position sensing element 141 includes a first micro switch. When the first contact coil is energized and the first electromagnet 111 drives the first linkage bridge 121 to move to the end position, the first linkage bridge 121 triggers the A micro switch, so that the first micro switch disconnects the circuit of the first contact coil and allows the circuit of the first release coil to be closed, when the first release coil is energized and the first electromagnet 111 drives the first linkage When the bridge 121 moves to the end position, the first linkage bridge 121 triggers the first microswitch, so that the first microswitch disconnects the circuit of the first disconnection coil and allows the circuit of the first contact coil to be connected; the second The position sensing element 142 includes a second micro switch. When the second contact coil is energized and the second electromagnet 112 drives the second linkage bridge 122 to move to the end position, the second linkage bridge 122 triggers the second micro switch, so that the first Two microswitches open the circuit of the second contact coil and allow the circuit of the second trip coil to be closed when the second trip coil is energized and the second electromagnet 112 drives the second linkage bridge 122 to the end position , the second linkage bridge 122 triggers the second microswitch, so that the second microswitch disconnects the circuit of the second disconnection coil and allows the circuit of the second contact coil to be closed. The switch assembly 100 according to the present embodiment senses the movement of the linkage bridge through a micro switch, which is beneficial for sensing the position of the linkage bridge at a lower cost, and is beneficial for improving the sensitivity of position detection. Moreover, according to the circuit breaking of the electromagnet when the linkage bridge moves to the end position, it is beneficial to save the electric power supplied to the electromagnet, especially suitable for the isolated energy system. At the same time, the circuit of the other coil is allowed to be turned on, which can improve the response speed of the electromagnet. This structure can also allow two contacts to open simultaneously when necessary for emergency treatment.

In one embodiment, the micro switch may refer to a switch with a push pin capable of sensing external micro-movements, a relatively small contact distance and a relatively high sensitivity, also known as a sensitive switch or a snap-action switch. According to the volume, the micro switch has ordinary, small and ultra-small. According to the breaking form, there are single-connection type, double-connection type and multi-connection type for microswitches. According to the protection performance, the micro switch has waterproof type, dustproof type and explosion-proof type. According to the breaking capacity, the micro switch has ordinary type, DC type, micro-current type and high-current type. According to the use environment, the micro switch has ordinary type, high temperature resistant type and super high temperature resistant ceramic type. According to the form of the pin, the micro switch has a button type, a reed type, a reed roller type, a lever roller type, a short boom type, a long boom type, etc.

In one embodiment, the end position may refer to the end position or the dead center position of the range of motion. For example, the position of the top dead center and bottom dead center of a piston moving in a cylinder is the end position. An object can have one end position, such as the highest point that the end of a pendulum rod can swing to; it can have two end positions, such as a rod-like structure that moves back and forth along its length, the farthest point that one end can move to and the closest point. point; can have three end positions, such as a trolley that moves on a triangular track, and can move to three corner positions on the track; can have multiple end positions, such as a knob that can rotate 360 degrees around the center point , each of its motion positions may become an end position.

In one embodiment, the movement of the linked bridge to the end position may refer to the movement of the linked bridge to or near the end position within its motion range. In one embodiment, the electromagnet drives the linkage bridge to move to the end position, which may mean that the magnetic field generated by the electromagnet acts directly or indirectly on the linkage bridge, so that the linkage bridge moves to its end position. In one embodiment, the electromagnet drives the linkage bridge to move to the end position, which can be realized by the magnetic field generated by the electromagnet passing through the iron core, so that the iron core is magnetized, and a magnetic attraction force for the linkage bridge is generated, so that the linkage bridge moves to the end position. The end position; it can also be that the magnetic field generated by the electromagnet passes through the iron core, so that the iron core is magnetized, and a magnetic attraction force for a transmission member is generated, so that the transmission member moves, and the movement of the transmission member is transmitted to the linkage bridge, which in turn makes the linkage bridge Move to the end position.

In one embodiment, the micro switch disconnects the circuit of the coil, which may mean that the micro switch is connected to a circuit that supplies power to the coil, and the coil circuit is disconnected when the state of the micro switch is switched. In one embodiment, the micro switch disconnects the circuit of the coil, which can be realized by directly connecting the micro switch to the circuit of the coil, and the operating state of the micro switch is changed from the on state to the off state, thereby Causes the circuit of the coil to open; it can also be that the microswitch is connected to another circuit associated with the coil circuit, and the operating state of the microswitch changes (from on to off or from off to on) ), the elements of the other circuit can control the coil circuit to open.

In one embodiment, the micro switch allows the circuit of the coil to be turned on, which may mean that when there may be other switches in the circuit where the micro switch is located, the closing operation of the micro switch does not necessarily cause the circuit to be energized, but When the other switches are closed, the circuit can be energized.

In one embodiment, the micro switch disconnects the circuit of the contact coil and allows the circuit to be disconnected from the coil. It may mean that the micro switch includes a moving contact and two stationary Switching between a state of being in contact with one stationary contact and a state of being in contact with another stationary contact, where one stationary contact is provided in the circuit that contacts the coil and the other is provided in the circuit that disconnects the coil, When the moving contact of the micro switch is switched from the state of being in contact with the stationary contact provided in the contact coil circuit to the state of being in contact with the stationary contact provided in the disconnecting coil circuit, the circuit of the contact coil is disconnected, and at the same time The circuit of the disconnect coil is allowed to close, ie can be closed if the other switches in the circuit of the disconnect coil are closed. In one embodiment, the microswitch opens the circuit for the disconnect coil and allows the circuit for the contact coil to be closed, as opposed to the above.

In one embodiment, when the contact coil is energized and the electromagnet drives the linkage bridge to the end position, the linkage bridge triggers the microswitch so that the microswitch opens the circuit to the contact coil and allows the circuit to open the disconnect coil. , which can mean that the linkage bridge is driven by the magnetic field generated by the electromagnet to move towards the end position that can be turned on. (chip) movement, which causes the state of the microswitch to switch, which in turn causes the circuit powering the contact coil to open, while the circuit powering the trip coil can be closed if the other switches in the circuit are closed. In one embodiment, when the trip coil is energized and the electromagnet drives the linkage bridge to the end position, the linkage bridge triggers the microswitch so that the microswitch opens the trip coil circuit and allows the contact coil circuit to be closed. pass, as opposed to the above.

Another embodiment according to the present invention is described below. This embodiment is a specific example of the embodiment in FIG. 1 , and may include one or more features of one or more of the above-mentioned embodiments.

According to this embodiment, the first position sensing element 141 includes a first position sensor. When the first contact coil is energized and the first electromagnet 111 drives the first linkage bridge 121 to move to the end position, the first linkage bridge 121 triggers the first linkage bridge 121 . a position sensor such that the first position sensor sends a signal to open the circuit of the first contact coil and allow the circuit of the first trip coil to be closed when the first trip coil is energized and the first electromagnet drives the first linkage bridge When moving to the end position, the first linkage bridge triggers the first position sensor, so that the first position sensor sends a signal to open the circuit of the first disengage coil and allow the circuit of the first contact coil to be closed; the second position sense The sensing element 142 includes a second position sensor. When the second contact coil is energized and the second electromagnet 112 drives the second linkage bridge 122 to move to the end position, the second linkage bridge 122 triggers the second position sensor, so that the second position sensor sends Signal to open the circuit of the second contact coil and allow the circuit of the second release coil to be closed, when the second release coil is energized and the second electromagnet 112 drives the second linkage bridge 122 to the end position, the first The dual linkage bridge 122 triggers the second position sensor so that the second position sensor sends a signal to open the circuit of the second disengage coil and allow the circuit of the second contact coil to be closed.

The switch assembly 100 according to the present embodiment senses the movement of the linkage bridge through the position sensor, which is beneficial to improve the accuracy of judging the position of the linkage bridge. Moreover, according to the circuit that sends a signal to open the coil when the linkage bridge moves to the end position, it is beneficial to save the electric power supplied to the electromagnet, especially suitable for isolated energy systems. At the same time, the circuit of the other coil is allowed to be turned on, which can improve the response speed of the electromagnet. This structure can also allow two contacts to open simultaneously when necessary for emergency treatment.

In one embodiment, the position sensor may refer to a sensor capable of sensing the position or position change of the measured object and converting it into an output signal. Generally, position sensors can be divided into two categories: contact sensors and proximity sensors. Among them, a contact sensor can refer to a sensor that the measured object needs to contact a certain part of the sensor to make the sensor react, including a travel switch, a two-dimensional matrix position sensor, etc.; a proximity sensor can refer to the measured object as long as it enters the sensor. A certain setting range of the sensor can make the sensor react, including electromagnetic type, photoelectric type, differential transformer type, eddy current type, capacitive type, reed switch, Hall type, etc.

In one embodiment, the linkage bridge triggers the position sensor, which may mean that the position sensor senses the existence of the linkage bridge somewhere or the movement state of the linkage bridge changes, thereby causing the position sensor to respond. In one embodiment, the linkage bridge triggers the position sensor, which can be realized by the linkage bridge entering the sensing range of the position sensor, causing the position sensor to sense the linkage bridge, thereby making a response; it can also be that the linkage bridge moves , causing the position sensor to sense the position change of the linkage bridge and react; it is also possible that the linkage bridge enters the sensing range of the position sensor and continues to move within this range, and the position sensor senses the movement of the linkage bridge, thereby making reaction.

In one embodiment, a signal may refer to a signal capable of directly or indirectly turning a particular circuit off or on. In one embodiment, the position sensor sends a signal, which may mean that the position sensor sends a specific signal according to the sensed position or position change, and the signal can cause a specific circuit to be disconnected or connected. In one embodiment, the position sensor sends a signal to open the circuit of the contact coil and allow the circuit of the decoupling coil to be closed, which may mean that the position sensor sends a signal, which is directly or indirectly transmitted to the circuit capable of controlling the contact coil and A device for disconnecting the circuit of the disconnect coil which, in response to the signal or a command received, disconnects the circuit contacting the coil and allows the circuit of the disconnect coil to be closed. In one embodiment, the position sensor sends a disconnect signal to open the circuit of the contact coil and allow the circuit of the disconnect coil to be closed, which may be achieved by the position sensor sending a signal which is communicated to the controller, which controls the According to the signal, the controller sends an operation command to the switch connected in the circuit of the contact coil and the switch connected in the circuit of the disconnection coil, the switch in the contact coil circuit performs the disconnection action according to the command, and the switch in the disconnection coil circuit is connected according to the instruction. The command performs the closing action; alternatively, the position sensor sends a current signal, which is directly received by the switch connected in the contact coil circuit and by the switch connected in the release coil, and these switches open respectively after receiving the current signal and closing action. In one embodiment, the position sensor sends a signal to open the circuit to disengage the coil and allow the circuit to close the contact coil, as opposed to the above.

In one embodiment, when the contact coil is energized and the electromagnet drives the linkage bridge to the end position, the linkage bridge triggers the position sensor, causing the position sensor to send a signal to open the circuit of the contact coil and allow the circuit of the disconnect coil to close , which can mean that the linkage bridge is driven by the magnetic field generated by the electromagnet to move towards the end position, and when reaching the end position, the position sensor senses the linkage bridge or the position change of the linkage bridge, thereby issuing a specific signal, the signal Directly or indirectly transmitted to a device capable of controlling the on-off of the contact coil circuit and the disconnect coil circuit, causing the device to switch states, causing the contact coil circuit to open, and causing the disconnect coil circuit to close other switches in the circuit can be connected. In one embodiment, when the trip coil is energized and the electromagnet drives the linkage bridge to the end position, the linkage bridge triggers the position sensor, causing the position sensor to send a signal to open the trip coil circuit and allow the contact coil circuit to close. pass, as opposed to the above.

Another embodiment according to the present invention will be described below with reference to FIGS. 2 to 5 . The switch assembly 200 in this embodiment is a specific example of the switch assembly 100 in the embodiment of FIG. 1 , and may include one or more of all the above-mentioned embodiments. one or more features of an embodiment.

According to this embodiment, the first switch further includes a first magnetic retaining structure, and the first magnetic retaining structure includes a first movable member 271 , a first contact position fixing member 281 and a first disengaging position fixing member 291 , and the first movable member 271 Connected to the first linkage bridge 221, when the first linkage bridge 221 drives the first contact 231 to make contact, the first movable member 271 moves to contact with the first contact position fixing member 281 and magnetically attracts, thereby maintaining the first contact 231, when the first linkage bridge 221 drives the first contact 231 to disengage, the first movable member 271 moves to the first disengagement position fixed member 291 to contact and magnetically attract, thereby maintaining the first contact 231. The second switch also includes a second magnetic retaining structure, the second magnetic retaining structure includes a second movable member 272, a second contact position fixing member 282 and a second disengaging position fixing member 292, and the second movable member 272 is connected to the second movable member 272. The two linkage bridges 222 are connected. When the second linkage bridge 222 drives the second contact 232 to make contact, the second movable member 272 moves to contact with the second contact position fixing member 282 and attracts magnetically, thereby maintaining the contact of the second contact 232. When the second linkage bridge 222 drives the second contact 232 to disengage, the second movable member 272 moves to contact with the second disengagement position fixing member 292 and magnetically attracts, thereby maintaining the disengagement of the second contact 232 .

According to the present embodiment, by providing the magnetic holding structure, the operating state of each switch in the switch assembly 200 can be held by magnetic force without continuously energizing the electromagnet to maintain the operating state, which is beneficial to saving energy consumption.

In one embodiment, the magnetic retention structure may refer to a structure that maintains an operating state (eg, on and off) of the switch assembly 200 by magnetic force. In one embodiment, the movable member may refer to a movable member, including a translationally movable member, a swingable member, a pivotable member, and a deformable member. In one embodiment, the contact position fixing member may refer to a fixed and immovable member used to define the position of the movable member that causes the contact to come into contact, and may be in the form of a stopper, a side wall, a bayonet (in this case, the movable member is on the There may be parts adapted to snap into the bayonet) and the like. In one embodiment, the release position fixing member may refer to a fixed and immovable component used to define the position of the movable member that causes the contacts to be released, and may be in the form of a stopper, a side wall, a bayonet or the like.

In one embodiment, the connection between the movable member and the linkage bridge may mean that the movable member and the linkage bridge are structurally associated, so that the motions of the two can be mutually conducted. In one embodiment, the movable element is connected with the linkage bridge, and the implementation manner may be fixed connection, movable connection, direct connection, indirect connection, and the like.

In one embodiment, the movable piece is moved until it contacts with the fixed piece at the contact position and is magnetically attracted, which may mean that the movable piece moves until it comes into contact with the fixed piece at the contact position and stops moving, and the movable piece is in contact with the fixed piece at the contact position. They are attracted to each other by magnetic force and remain in contact and relatively fixed. In one embodiment, the movable piece is moved to contact with the fixed piece at the contact position and magnetically attracted, and the realization method can be that the movable piece can move back and forth on a linear track, the fixed piece at the contact position is arranged at one end of the track, and the movable piece moves. When reaching this end, the contact position fixing piece blocks the movable piece, and attracts the movable piece with each other through magnetic force; alternatively, the movable piece is an elastic reed, one end of the reed is fixed, the other end can elastically swing, and the contact position is fixed The movable member is installed on one side of the movable end of the reed, and when the movable end of the movable member swings to the contact position fixing member, the contact position fixing member stops and magnetically attracts the movable member; it is also possible that the movable member is a pivoting The arm structure on one side of the pivoting member can pivot to be blocked by the contact position fixing member, so as to contact and magnetically attract the contact position fixing member.

In one embodiment, when the linkage bridge drives the contacts to make contact, the movable part moves to contact with the fixed part at the contact position and attracts magnetically, thereby maintaining the contact of the contacts. During the movement to the contact position or just when the contact occurs, the movable part connected with the linkage bridge is driven by the linkage bridge and starts to move until it moves to contact and magnetically attract the fixed part at the contact position, and the mutual magnetic attraction force can be This in turn causes the moving parts of the contacts to remain above the contact position.

In one embodiment, the movable piece moves to contact with the fixed piece at the disengaged position and attracts magnetically, which may mean that the movable piece moves until it comes into contact with the fixed piece at the disengaged position and stops moving, and the movable piece is disengaged from the fixed piece. The position fixing pieces are attracted to each other by magnetic force and are kept in contact and relatively fixed state. In one embodiment, the movable piece moves to contact with the disengagement position fixing piece and attracts magnetically, which can be realized by the way that the movable piece can move back and forth on a linear track, the disengagement position fixing piece is arranged at one end of the track, and the movable piece can move back and forth on a linear track. When the moving piece moves to this end, the disengaged position fixing piece blocks the moving piece and attracts each other with the moving piece through magnetic force; it can also be that the moving piece is an elastic reed, one end of the reed is fixed, and the other end can elastically swing, The disengagement position fixing piece is installed on one side of the movable end of the reed, and when the movable end of the movable piece swings to the disengaging position fixing piece, the disengaging position fixing piece stops and magnetically attracts the movable piece; it can also be, The movable member is a pivoting member, and the arm-like structure on one side of the pivoting member can pivot to be blocked by the disengaging position fixing member, so as to contact and magnetically attract the disengaging position fixing member.

In one embodiment, when the linkage bridge drives the contacts to disengage, the movable piece moves to contact with the fixed part at the disengaged position and attracts magnetically, thereby maintaining the disengagement of the contacts, which may mean that the linkage bridge drives the contacts. During the movement of the movable part to the disengaged position or just when the disengagement occurs, the movable part connected with the linkage bridge is driven by the linkage bridge and starts to move until it moves to contact and magnetically attract the fixed part in the disengaged position, and they mutually The force of the magnetic attraction can in turn cause the moving parts of the contacts to remain in the disengaged position.

Another embodiment according to the present invention is described below. This embodiment is a specific example of the embodiment in FIG. 2 , and may include one or more features of one or more of the above-mentioned embodiments.

According to the present embodiment, the first and second movable members 271 and 272 are both made of permanent magnets, and the first and second contact position fixing members 281 and 282 and the first and second disengagement position fixing members 291 and 292 are both made of permanent magnets. Made of magnetic steel.

According to the switch assembly 200 of the present embodiment, a small number of movable parts are designed to be made of permanent magnets, and a large number of fixed parts are designed to be made of magnetic steel, which is beneficial to saving permanent magnet materials with higher cost use to reduce costs.

In one embodiment, the permanent magnet may refer to a hard magnetic material that can maintain magnetism constantly after being magnetized. In one embodiment, permanent magnets can be classified into natural permanent magnets (eg, magnetite) and artificial permanent magnets (eg, metal and alloy permanent magnets, ferrite permanent magnets, rare earth permanent magnets, composite permanent magnets, etc.). In one embodiment, the magnetic steel may refer to a metal or a composite metal synthesized by one or several metals with relatively high strength that can be attracted by a permanent magnet.

In one embodiment, the movable part is made of permanent magnet, which may mean that the movable part is made of permanent magnet in whole or at least in part. In one embodiment, the contact position fixing member and the disengaging position fixing member are made of magnetic steel, which may mean that the contact position fixing member and the disengaging position fixing member are entirely or at least partially made of magnetic steel.

Another embodiment according to the present invention is described below. This embodiment is a specific example of the embodiment in FIG. 2 , and may include one or more features of one or more of the above-mentioned embodiments.

According to the present embodiment, the first and second switches are mirror-symmetrically mounted in the first and second mounting seats 251, 252, so that the first and second electromagnets 211, 212 are close to the outside of the frame 260, the first and second The linkage bridges 221 and 222 are close to the middle of the frame 260 .

According to the switch assembly 200 of the present embodiment, the mirror-symmetrical structure is beneficial to improve the convenience of installation and wiring on the one hand, and it is helpful to make the frequently moving parts (such as the linkage bridge) more difficult to be disturbed by the outside world.

In one embodiment, mirror symmetry may mean that if a mirror is placed along the symmetry axis of two figures, and the image formed by one figure in the mirror completely coincides with the other figure, then the two figures are said to be mirror-symmetrical. . In one embodiment, the first and second electromagnets 211 and 212 are close to the outside of the frame 260, and the first and second linkage bridges 221 and 222 are close to the middle of the frame 260, which may refer to the first electromagnets 211 and the second The position of the electromagnet 212 is mirror-symmetrical, and the positions of the first linkage bridge 221 and the second linkage bridge 222 are mirror-symmetrical, wherein the first and second linkage bridges 221 and 222 are closer to the first and second electromagnets 212 The axis of symmetry is thus closer to the middle of the frame 260, and the first and second electromagnets 212 are further away from the axis of symmetry, and thus further away from the middle of the frame 260 and closer to the middle of the frame 260, relative to the first and second linkage bridges 221, 222. outside.

Another embodiment according to the present invention is described below. This embodiment is a specific example of the embodiment in FIG. 2 , and may include one or more features of one or more of the above-mentioned embodiments.

According to this embodiment, the first mounting seat 251 includes a first recess 253 , a first slide 255 and a first recess 257 , a first electromagnet 211 , a first movable member 271 , a first contact position fixing member 281 , a first The disengaged position fixing member 291 is installed in the first recess 253, the first linkage bridge 221 and the first position sensing element are installed in the first slideway 255, and the first contact 231 is installed in the first recess 257; The second mounting base 252 includes a second recess 254 , a second slide 256 and a second recess 258 , a second electromagnet 212 , a second movable member 272 , a second contact position fixing member 282 , and a second disengaging position fixing member 292 Mounted in the second recess 254 , the second linkage bridge 222 and the second position sensing element are mounted in the second slide 256 , and the second contact 232 is mounted in the second recess 258 .

According to the switch assembly 200 of the present embodiment, each component of the switch is installed in different accommodating spaces, which is beneficial to maintain the stability of the relative position and relative movement between the various components, and is beneficial to protect the various components from the outside as much as possible. Interference from the environment and interference and influence from other components.

In one embodiment, a notch and a recess may refer to a portion having a concave shape, and a slide may refer to a platform, channel or groove capable of allowing a component to slide therein. In one embodiment, the electromagnet, the movable piece, the contact position fixing piece, and the disengaging position fixing piece are installed in the recess, which may mean that the electromagnet, the movable piece, the contact position fixing piece, and the disengaging position fixing piece are installed in the recess. in the space formed by the concave shape of the mouth. In one embodiment, the linkage bridge and the position sensing element are installed in the slideway, which may mean that the linkage bridge and the position sensing element are installed in a channel of the slideway that is capable of allowing the component to slide. In one embodiment, the contact is installed in the recess, which may mean that the contact is installed in the space formed by the concave shape of the recess.

Another embodiment according to the present invention is described below. This embodiment is a specific example of the embodiment in FIG. 2 , and may include one or more features of one or more of the above-mentioned embodiments.

According to the present embodiment, the frame 260 includes an upper beam 261 , a lower beam 262 , a left beam 263 , a right beam 264 and a middle column 265 , and the upper beam 261 , the left beam 263 , the lower beam 262 and the middle column 265 surround the first mounting seat 251 , the upper beam 261 , the right beam 264 , the lower beam 262 and the middle column 265 surround the second mounting seat 252 .

According to the switch assembly 200 of the present embodiment, the frame 260 is formed by elongated beams and columns and the mounting seat is formed around it. On the one hand, it is beneficial to provide a solid support structure system for the switch in the switch assembly 200, and on the other hand, it is beneficial to reduce the material consumption and overall weight, reducing manufacturing costs while ensuring reliability.

In one embodiment, beams and columns may refer to elongated arm-like structures, which may be classified into linear, curved, and a combination of linear and curved according to different shapes. In one embodiment, up, down, left, and right only refer to directions relative to the drawing, which are used to distinguish components at different positions, rather than to define the actual positions of each component. In one embodiment, the upper beam 261 may refer to a beam extending laterally above. In one embodiment, the lower beam 262 may refer to a beam extending laterally below. In one embodiment, the left beam 263 may refer to a beam extending vertically on the left side. In one embodiment, the right beam 264 may refer to a beam extending vertically on the right side. In one embodiment, the middle column 265 may refer to a column-like structure extending vertically at or near the middle position of the frame 260 .

In one embodiment, wrapping may refer to being arranged around an object to limit the boundary of the object. In one embodiment, the upper beam 261, the left beam 263, the lower beam 262 and the middle column 265 surround the first mounting seat 251, which may refer to the upper beam 261, the left beam 263, the lower beam 262 and the middle column 265 (in the On a certain plane) around the periphery of the first mounting seat 251 , the boundary of the first mounting seat 251 is defined, and the first mounting seat 251 is arranged on the left side of the middle column 265 . In one embodiment, the upper beam 261, the right beam 264, the lower beam 262 and the middle column 265 surround the second mounting seat 252, which may refer to the upper beam 261, the right beam 264, the lower beam 262 and the middle column 265 (in the On a certain plane) around the circumference of the first mounting seat 251 , the boundary of the first mounting seat 251 is defined, and the first mounting seat 251 is arranged on the right side of the middle column 265 .

Another embodiment according to the present invention is described below. This embodiment is a specific example of the embodiment in FIG. 2 , and may include one or more features of one or more of the above-mentioned embodiments.

According to this embodiment, the first and second slideways 255 and 256 are arranged in parallel on both sides of the middle column 265, the first notch 253 is arranged between the first slideway 255 and the left beam 263, and the second notch 254 is arranged at Between the second slideway 256 and the right beam 264 , the first recess 257 is provided between the first recess 253 and the upper beam 261 , and the second recess 258 is provided between the second recess 254 and the upper beam 261 .

According to the switch assembly 200 of the present embodiment, the parts that need to move frequently are arranged at the relative middle position of the frame 260, and the relatively fixed parts are arranged at the opposite edges of the frame 260, which is beneficial to protect the moving parts It is protected from external interference and is beneficial to improve the service life of moving parts.

In one embodiment, the parallel arrangement may refer to that the two objects are arranged in a certain position with their longitudinal directions parallel to each other. In one embodiment, the first and second slideways 255 and 256 are arranged in parallel on both sides of the middle column 265, which may mean that the first slideway 255 and the second slideway 256 are arranged side by side on both sides of the middle column 265, Make their glide paths point parallel to each other.

In one embodiment, the first notch 253 is provided between the first slideway 255 and the left beam 263 , which may refer to the space formed between the first slideway 255 and the left beam 263 by the first notch 253 anywhere in the area. In one embodiment, the second notch 254 is provided between the second slide 256 and the right beam 264 , which may refer to the space formed between the second slide 256 and the right beam 264 by the second notch 254 anywhere in the area. In one embodiment, the first recess 257 is provided between the first recess 253 and the upper beam 261 , which may mean that the first recess 257 is provided in a space area formed between the first recess 253 and the upper beam 261 at any location. In one embodiment, the second recess 258 is provided between the second recess 254 and the upper beam 261 , which may mean that the second recess 258 is provided in the space area formed between the second recess 254 and the upper beam 261 . at any location.

Another embodiment according to the present invention is described below. This embodiment is a specific example of the embodiment in FIG. 2 , and may include one or more features of one or more of the above-mentioned embodiments.

According to the present embodiment, the frame 260 further includes a bottom plate 295 disposed on the rear sides of the upper beam 261 , the lower beam 262 , the left beam 263 , the right beam 264 and the middle column 265 as the first and second mounting seats 251 , 252 bottom of.

According to the switch assembly 200 of the present embodiment, by adding the bottom plate 295 , it is beneficial to increase and stably install and support the various components of the switch assembly 200 , and it is beneficial to protect the various components of the switch assembly 200 from the environment.

In one embodiment, the bottom plate 295 may refer to a plate-like structure that supports and/or protects the object underneath. In one embodiment, the rear side may refer to the side away from the reader from the drawing surface when the reader observes the drawing surface. It should be noted that the rear side here is only relative to FIG. 3, for other views or in actual use, the position of the bottom plate 295 may also be on the front side or other orientations. In one embodiment, the bottom plate 295 is disposed on the rear side of the upper beam 261 , the lower beam 262 , the left beam 263 , the right beam 264 and the middle column 265 . Beam 262 , left beam 263 , right beam 264 and center post 265 are all closer to the rear side, but are interconnected with at least a portion of the frame 260 structure.

In one embodiment, the bottom plate 295 is used as the bottom of the first and second mounting bases 251 and 252, which may mean that the direction in which the object to be installed enters the mounting base is viewed vertically, and the direction in which the object enters the mounting base is upward. The bottom of the first and second mounting bases 251 and 252 is the bottom, and the bottom plate 295 is arranged at the bottom of the first and second mounting bases 251 and 252 as a bottom platform for the object to be mounted, for supporting and/or protecting the mounted object object. In one embodiment, the bottom plate 295 is used as the bottom of the first and second mounting seats 251 and 252, and the realization method can be that one bottom plate 295 constitutes the bottom of the first mounting seat 251 and the second mounting seat 252 at the same time; , the two bottom plates 295 constitute the bottoms of the first mounting seat 251 and the second mounting seat 252 respectively; other situations are also possible.

Another embodiment according to the present invention is described below. This embodiment is a specific example of the embodiment in FIG. 2 , and may include one or more features of one or more of the above-mentioned embodiments.

In this embodiment, the switch assembly 200 generally includes a first switch, a second switch, and a frame 260 . The structures of the first switch and the second switch are substantially the same, but are mirror-symmetrical to each other. The specific structure of the switch is described below by taking the first switch as an example. Those skilled in the art should know that these detailed descriptions of the structure can also be applied to the second switch, but some adjustments need to be made in the position and direction.

The first switch includes a first contact 231 . In this embodiment, the first contact 231 is a normally closed contact, that is, a b-type contact. The first contact 231 is composed of two metal contacts arranged above and below, respectively, and a reed connected to the lower metal contact (moving contact). The end of the reed is connected with the first linkage bridge 221, so that the first linkage bridge 221 can drive the moving contact below to move up and down. When the first linkage bridge 221 slides downward, the moving contact moves down at the same time, causing the moving contact The contacts are disengaged from the upper stationary contacts; when the first linkage bridge 221 slides upward, the movable contacts move upward at the same time, causing the movable contacts to contact the stationary contacts. What drives the first linkage bridge 221 to move up and down is the electromagnetic force formed by the first electromagnet 211 . The magnetic force formed after the first electromagnet 211 is energized is transmitted to the first contact position fixing member 281 and the first disengaging position fixing member 291 made of magnetic steel through the vertically extending iron core and the laterally extending armature, thereby forming The magnetic attraction force for the first movable member 271 made of permanent magnet. The first movable member 271 is pivotable, and its shape is, for example, an H-shape. The first electromagnet 211 can be a superimposed electromagnet, including two sets of electromagnets with different winding directions, and the two sets of electromagnets can be divided into two sections in the axial direction, or can be divided into two layers in the radial direction. When the first contact coil of the first electromagnet 211 is energized, the electromagnetic field of the first electromagnet 211 causes the first contact position fixing member 281 to generate a magnetic attraction force to the first movable member 271, causing the first movable member 271 to pivot downward. Turn until it touches the first contact position fixing member 281 (it may not be in contact with the first contact position fixing member 281). At this time, the first linkage bridge 221 is pushed upward by the pivot arm of the first movable member 271 , thereby driving the movable contact to make closed contact with the stationary contact. On the contrary, when the first release coil of the first electromagnet 211 is energized, the electromagnetic field of the first electromagnet 211 causes the first release position fixing member 291 to generate a magnetic attraction force to the first movable member 271, resulting in the first movable member 271 is pivoted upward until it contacts the first disengagement position fixing member 291 (it may also not be in contact with the first disengaging position fixing member 291). At this time, the first linkage bridge 221 is pushed downward by the pivot arm of the first movable member 271, and then drives the movable contact to separate from the stationary contact.

In this embodiment, the first and second switches are each mounted in the first and second mounts 251 , 252 formed by the frame 260 . Taking the first switch as an example, the first mounting seat 251 includes a first notch 253 on the top, a first slideway 255 on the right side and a first recess 257 on the left side, and the first electromagnet 211 is mounted on the first switch. The left part in the notch 253 and the right part in the first notch 253 are installed with the first magnetic retaining structure (ie the first movable part 271 , the first contact position fixing part 281 and the first disengaging position fixing part 291 ). ). On the right side of the first notch 253 is a vertically extending first slideway 255 , and the first linkage bridge 221 can translate and slide up and down in the first slideway 255 . Above the first recess 253 and the first slideway 255 is a first recess 257, and the moving contact, the stationary contact and the reed of the first contact 231 are all installed in the first recess 257, wherein the reed extends laterally , the moving contact and the static contact are arranged on the right side of the reed, and the right end of the reed is connected to the upper end of the first linkage bridge 221 .

In this embodiment, the first and second switches include first and second microswitches, respectively. The first and second micro switches are disposed in the first slideway 255 and the second slideway 256, respectively. Taking the first switch as an example, the first micro switch is simultaneously provided in the circuit of the first contact coil and the circuit of the first release coil of the first electromagnet 211 , and can switch back and forth between the on states of the two circuits. . When the first contact 231 has made contact, the first microswitch switches from the state of closing the circuit of the first contact coil to the state of closing the circuit of the first disconnect coil, so that the circuit of the first contact coil is de-energized, and at the same time The circuit of the first disengaged coil waits to power up (power up if the power supply is able to power it). When the first contact 231 has been disconnected, the first micro switch switches from the state of closing the circuit of the first disconnect coil to the state of closing the circuit of the first contact coil, so that the circuit of the first disconnect coil is de-energized , while the circuit of the first contact coil waits to be powered on.

The concepts, principles and ideas of the present invention have been described in detail above in conjunction with specific embodiments (including embodiments and examples). Those skilled in the art should understand that the embodiments of the present invention are not limited to the above-mentioned forms, and those skilled in the art can make steps, methods, devices, and components in the above-mentioned embodiments after reading the application documents. Any possible modifications, substitutions and equivalents are deemed to fall within the scope of the present invention. The protection scope of the present invention is only based on the claims.

Claims (10)

1. A switch assembly, comprising: A first switch. The first switch includes a first electromagnet, a first contact, a first linkage bridge and a first position sensing element. After the first electromagnet is energized, the first linkage bridge is driven, so that all The first linkage bridge drives the first contacts to contact or disengage, and makes the first linkage bridge trigger the first position sensing element; A second switch, the second switch includes a second electromagnet, a second contact, a second linkage bridge and a second position sensing element, the second electromagnet drives the second linkage bridge after being energized, so that all the second linkage bridge drives the second contacts to contact or disengage, and enables the second linkage bridge to trigger the second position sensing element; and a frame including a first mount and a second mount in which the first and second switches are mounted, respectively. 2. The switch assembly of claim 1, wherein, The first electromagnet includes a first contact coil and a first release coil. After the first contact coil is energized, the first contact is connected. After the first release coil is energized, the first contact is connected. A contact to achieve disengagement; The second electromagnet includes a second contact coil and a second release coil. After the second contact coil is energized, the second contact is connected. After the second release coil is energized, the first contact is connected. The two contacts are disconnected. 3. The switch assembly of claim 2, wherein, The first position sensing element includes a first microswitch, which is actuated when the first contact coil is energized and the first electromagnet drives the first linkage bridge to move to an end position the first micro switch so that the first micro switch disconnects the circuit of the first contact coil and allows the circuit of the first disconnect coil to be closed, when the first disconnect coil When the power is turned on and the first electromagnet drives the first linkage bridge to move to the end position, the first linkage bridge triggers the first micro switch, so that the first micro switch deactivates the first switch. opening the circuit of the coil and allowing the circuit of the first contact coil to be closed; The second position sensing element includes a second microswitch that is actuated when the second contact coil is energized and the second electromagnet drives the second linkage bridge to an end position the second microswitch such that the second microswitch opens the circuit of the second contact coil and allows the circuit of the second disconnect coil to be closed, when the second disconnect coil When the power is turned on and the second electromagnet drives the second linkage bridge to move to the end position, the second linkage bridge triggers the second micro switch, so that the second micro switch deactivates the second switch. The circuit of the open coil is opened and the circuit of the second contact coil is allowed to be closed. 4. The switch assembly of claim 2, wherein, The first position sensing element includes a first position sensor, which triggers the first linkage bridge when the first contact coil is energized and the first electromagnet drives the first linkage bridge to move to the end position. the first position sensor such that the first position sensor sends a signal to open the circuit of the first contact coil and allow the circuit of the first disconnect coil to be closed, when the first disconnect coil When energized and the first electromagnet drives the first linkage bridge to an end position, the first linkage bridge triggers the first position sensor so that the first position sensor sends a signal to move the first linkage opening the circuit of the disconnect coil and allowing the circuit of the first disconnect coil to be closed; The second position sensing element includes a second position sensor that triggers the second linkage bridge when the second contact coil is energized and the second electromagnet drives the second linkage bridge to move to the end position. the second position sensor such that the second position sensor sends a signal to open the circuit of the second contact coil and allow the circuit of the second disconnect coil to be closed, when the second disconnect coil When energized and the second electromagnet drives the second linkage bridge to an end position, the second linkage bridge triggers the second position sensor, causing the second position sensor to send a signal to move the second linkage The circuit of the trip coil is opened and the circuit of the second trip coil is allowed to be closed. 5. The switch assembly of any one of claims 1 to 4, wherein, The first switch further includes a first magnetic retaining structure, the first magnetic retaining structure includes a first movable member, a first contact position fixing member and a first disengaging position fixing member, the first movable member and the The first linkage bridge is connected, and when the first linkage bridge drives the first contact to make contact, the first movable piece moves to contact with the first contact position fixed piece and magnetically attracts, thereby maintaining the The contact of the first contact, when the first linkage bridge drives the first contact to disengage, the first movable piece moves to contact with the first disengagement position fixed piece and magnetically attracts, thereby maintaining the disengagement of the first contact; The second switch further includes a second magnetic retaining structure, the second magnetic retaining structure includes a second movable member, a second contact position fixing member and a second disengaging position fixing member, the second movable member and the The second linkage bridge is connected, and when the second linkage bridge drives the second contact to make contact, the second movable member moves to contact with the second contact position fixed member and magnetically attracts, thereby maintaining the When the second contact is in contact with the second contact, when the second linkage bridge drives the second contact to disengage, the second movable member moves to contact with the second disengagement position fixed member and magnetically attracts, thereby Keep the second contact open. 6. The switch assembly of claim 5, wherein the first and second movable members are both made of permanent magnets, the first and second contact position fixing members and the first and second release members are The open position fixings are all made of magnetic steel. 7. The switch assembly of claim 5, wherein the first and second switches are mirror-symmetrically mounted in the first and second mounts such that the first and second electromagnets are adjacent to the The outer side of the frame, the first and second linkage bridges are close to the middle of the frame. 8. The switch assembly of claim 7, wherein: The first mounting seat includes a first notch, a first slide and a first recess, and the first electromagnet, the first movable piece, the first contact position fixing piece, and the first disengaging position fixing piece are installed on the first notch. In the first recess, the first linkage bridge and the first position sensing element are installed in the first slideway, and the first contact is installed in the first recess; The second mounting seat includes a second recess, a second slide, and a second recess, and the second electromagnet, the second movable piece, the second contact position fixing piece, and the second disengaging position fixing piece are installed in the second notch. In the second recess, the second linkage bridge and the second position sensing element are installed in the second slideway, and the second contact is installed in the second recess. 9. The switch assembly of claim 8, wherein the frame includes an upper beam, a lower beam, a left beam, a right beam, and a middle column, the upper beam, the left beam, the lower beam, and the The middle column surrounds the first mounting seat, and the upper beam, the right beam, the lower beam and the middle column surround the second mounting seat. 10. The switch assembly of claim 9, wherein the first and second slides are provided in parallel on both sides of the intermediate post, and the first recess is provided on the first slide and the between the left beams, the second notch is arranged between the second slideway and the right beam, the first recess is arranged between the first notch and the upper beam, the A second recess is provided between the second recess and the upper beam; Preferably, the frame further includes a bottom plate, which is arranged on the rear side of the upper beam, the lower beam, the left beam, the right beam and the middle column, as the first and second beams. The bottom of the two mounts.

Images