CN110335788B - A miniaturized high-power magnetic latching relay - Google Patents
A miniaturized high-power magnetic latching relay Download PDFInfo
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- CN110335788B CN110335788B CN201910614496.4A CN201910614496A CN110335788B CN 110335788 B CN110335788 B CN 110335788B CN 201910614496 A CN201910614496 A CN 201910614496A CN 110335788 B CN110335788 B CN 110335788B
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- latching relay
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- pushing block
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 230000009471 action Effects 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims description 38
- 230000003068 static effect Effects 0.000 claims description 22
- 238000002955 isolation Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 4
- 230000033001 locomotion Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 235000014676 Phragmites communis Nutrition 0.000 abstract description 44
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/041—Details concerning assembly of relays
- H01H50/043—Details particular to miniaturised relays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/01—Relays in which the armature is maintained in one position by a permanent magnet and freed by energisation of a coil producing an opposing magnetic field
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Abstract
The invention discloses a miniaturized high-power magnetic latching relay, which comprises a base, a magnetic circuit part, a pushing block and a contact part, wherein the pushing block is arranged on the base; the base is provided with a first baffle wall to divide the base into an upper cavity and a lower cavity, and the magnetic circuit part and the contact part are respectively arranged in the upper cavity and the lower cavity; the iron core, yoke and magnetic steel of the magnetic circuit part form an E-shaped magnetic conduction structure which rotates 90 degrees; the middle of the armature of the magnetic circuit part is rotatably supported above the corresponding magnetic steel position, and two ends of the armature are respectively corresponding to the upper parts of the two yokes so as to perform seesaw type action under the cooperation of the magnetic conduction structure; the upper end of the pushing block is connected with one end of the armature, and the lower end of the pushing block is connected with the free end of the movable reed of the contact part. The invention has the characteristics of simple part structure, complete functions, simple structure, low manufacturing cost, small product volume, large load capacity and better surge current resistance.
Description
Technical Field
The invention relates to the technical field of relays, in particular to a miniaturized high-power magnetic latching relay.
Background
A relay is an electronically controlled device having a control system (also known as an input loop) and a controlled system (also known as an output loop), commonly used in automatic control circuits, which in effect is an "automatic switch" that uses a small current to control a large current. Therefore, the circuit plays roles of automatic regulation, safety protection, circuit switching and the like. The magnetic latching relay is one of relays, is also an automatic switch, and has automatic on-off function on a circuit like other electromagnetic relays, except that the normally closed or normally open state of the magnetic latching relay is completely dependent on the action of permanent magnet steel, and the switching of the switching state is completed by triggering by a pulse electric signal with a certain width. The magnetic latching relay of the prior art generally includes a magnetic circuit portion, a contact portion, a push block, and a base; the magnetic circuit part and the contact part are respectively arranged on the base, and the pushing block is connected between the magnetic circuit part and the contact part. The coil is electrified with forward pulse voltage (or a setting coil is electrified), the magnetic circuit part works, the pushing block pushes the movable contact spring of the contact part to enable the movable contact of the contact part to be contacted with the static contact, the relay acts, the coil is electrified with reverse pulse voltage (or a resetting coil is electrified), the magnetic circuit part works, and the pushing block pushes the movable contact spring of the contact part to enable the movable contact of the contact part to be disconnected with the static contact, and the relay is reset. In a magnetic latching relay in the prior art, an armature component in a magnetic circuit part of the magnetic latching relay is generally in an H-shaped form and is in a teeterboard structure, magnetic steel is arranged in the armature component, yokes are in L-shaped forms, the vertical sides of the L-shapes of the two yokes are respectively fixed with two ends of an iron core, and the horizontal sides of the L-shapes of the two yokes are respectively matched with two openings of the H-shape of the armature component. The magnetic latching relay in the prior art is large in size generally and cannot realize the characteristics of miniaturization and high power.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the miniaturized high-power magnetic latching relay which has the characteristics of simple part structure, complete functions, simple die structure, low manufacturing cost, small product volume, high load capacity and better surge current resistance through structural improvement.
The technical scheme adopted for solving the technical problems is as follows: a miniaturized high-power magnetic latching relay comprises a base, a magnetic circuit part, a pushing block and a contact part; the base is provided with a first baffle wall to divide the base into an upper cavity and a lower cavity, and the magnetic circuit part and the contact part are respectively arranged in the upper cavity and the lower cavity to realize strong and weak electric isolation; the magnetic circuit part comprises an iron core, two yokes, magnetic steel and an armature; the iron core is strip-shaped and horizontally arranged, and the yoke iron is plate-shaped; the two yokes are respectively fixed at two ends of the iron core, and the magnetic steel is matched in the middle of the iron core, so that the iron core, the yokes and the magnetic steel form an E-shaped magnetic conduction structure which is turned by 90 degrees; the middle of the armature iron is rotatably supported above the corresponding magnetic steel positions, and two ends of the armature iron are respectively corresponding to the upper parts of the two yokes so as to perform seesaw type action under the cooperation of the magnetic conduction structure; the upper end of the pushing block is connected with one end of the armature, and the lower end of the pushing block is connected with the free end of the movable spring of the contact part.
The iron core is of a flat strip-shaped structure, a square notch is arranged in the middle of the yoke, and the two yokes are respectively riveted and fixed at two ends of the iron core in the length direction through the square notch; shoulders are arranged on two sides of the yoke and are matched with the base as positioning structures of the magnetic circuit parts; the top of the yoke is provided with working pole faces matched with two ends of the armature iron.
The iron cores are distributed along the length direction of the base, notches with openings facing the front outer side and used for accommodating the pushing blocks are formed in the front end of the base, and one end of the armature iron extends to the upper side of the notches from the upper side of the upper cavity and is connected with the upper ends of the pushing blocks accommodated in the notches; the bottom of the notch is communicated with the lower cavity so that the lower end of the pushing block accommodated in the notch is connected with the free end of the movable reed of the contact part of the lower cavity.
The upper cavity is of a concave surrounding frame structure, the front part of the upper cavity is provided with a supporting platform for supporting the front part of the magnetic circuit part, the rear part of the upper cavity is provided with a sinking groove for matching the coil of the magnetic circuit part, and a slope-shaped web plate is arranged between the front part and the rear part.
Two sides of the front end and the rear end of the upper cavity are respectively provided with a notch for assembling a magnetic circuit part to realize positioning; and dispensing openings are respectively arranged on two sides of the notch, so that the magnetic circuit part is fixed in a dispensing mode when the clamping force is insufficient due to the fact that the magnetic circuit part is arranged in the upper cavity.
The lower cavity is respectively provided with an opening which is outwards communicated along the width direction of the base, and the movable reed and the static reed in the contact part are respectively arranged in the lower cavity along two openings along the width direction of the base and are fixed by utilizing a horizontal slot arranged in the lower cavity in an inserting manner.
In the lower cavity, two second retaining walls are further arranged at the matched positions corresponding to the movable reed and the static reed, so that the isolation between the movable reed and the static reed is realized by utilizing the two second retaining walls and an air gap between the two second retaining walls, and the insulation distance between the movable reed and the static reed is effectively improved.
The coil includes a bobbin; the coil rack comprises flanges at two ends in the length direction, a winding window between the flanges at the two ends, and an iron core mounting hole penetrating through the flanges at the two ends in the length direction; a retaining wall is further arranged in the middle of the winding window of the coil frame so as to divide the winding window of the coil frame into a first winding window and a second winding window which are isolated; the top surface of the retaining wall is provided with a concave groove which is communicated with the iron core mounting hole; the iron core is arranged in the iron core mounting hole, the two yokes are respectively matched with the outer sides of flanges at two ends of the coil frame, and the magnetic steel is arranged in the groove; limiting bosses are respectively arranged on two sides of the groove to limit the magnetic steel loaded in the groove to displace along the width direction of the coil former.
The middle part of the armature is also provided with a rotating shaft piece so that two ends of the armature are in a teeterboard structure; the two sides of the rotating shaft piece are respectively provided with a rotating shaft, the top of the limiting boss is provided with a semicircular notch for being filled with the rotating shaft of the armature so as to match the rotating shaft of the rotating shaft piece of the armature, and the rotating shaft of the armature is limited to move along the length direction of the coil frame.
The two sides of the width of the middle part of the armature, which is deviated from the position of one end of the armature, are respectively provided with a notch which is convenient to be filled in the rotating shaft piece, the rotating shaft piece is filled in the armature through the notch and is in interference fit with the armature after being pushed towards the middle part, and the two sides of the width of the middle part of the armature, which is deviated from the position of one end of the armature, are respectively provided with a convex part so as to limit the rotating shaft piece to move towards the direction of one end of the armature.
The coil further comprises an enameled wire and a coil terminal; the coil terminals comprise a start terminal, a common terminal and a tail terminal, the three terminals are arranged in a flange on one side of the first winding window in a side-by-side mode along the width direction of the coil frame, and the three terminals face the same direction; the retaining wall is provided with a wire groove for communicating the first winding window and the second winding window, and a bridging terminal, wherein the bridging terminal is arranged in the wire groove and has the same orientation as the three terminals; the enameled wire is wound in a single-coil mode or a double-coil mode from the initial end terminal and then connected to the bridging terminal, and the bridging terminal spans the first winding window and is connected to the terminal, so that the wound initial end wire and the terminal wire are isolated in space.
The upper part of the pushing block is provided with two connecting arms which are at a certain interval and have a certain length in a protruding way, so that the two sides of the width of the armature can be clamped in the width direction of the armature by utilizing the flexible opening characteristic of the two connecting arms, and the pushing block is driven to move up and down when the armature swings up and down.
The lower part of the pushing block is provided with a through hole which is approximately rectangular, and the tail end of one end of the movable reed provided with the movable contact is movably hooked in the through hole at the lower part of the pushing block, so that the movable reed is driven to swing up and down when the pushing block moves up and down; the upper and lower hole walls of the through hole of the pushing block are respectively in an arc shape, so that when the pushing block acts, the pushing block is in line-surface contact with the movable contact, and the distance between the upper hole wall and the lower hole wall of the through hole of the pushing block is larger than the thickness dimension of the tail end of one end of the movable contact.
Compared with the prior art, the invention has the beneficial effects that:
1. The invention adopts the structure that the base is provided with the first baffle wall so as to divide the base into the upper cavity and the lower cavity, and the magnetic circuit part and the contact part are respectively arranged in the upper cavity and the lower cavity, thereby realizing strong and weak electric isolation; the invention also adopts two yokes to be fixed at two ends of the iron core respectively, and magnetic steel is matched in the middle of the iron core, so that the iron core, the yokes and the magnetic steel form an E-shaped magnetic conduction structure which rotates by 90 degrees; the middle of the armature iron is rotatably supported above the positions corresponding to the magnetic steel, so that the two ends of the armature iron are respectively corresponding to the upper parts of the two yoke iron, and seesaw type actions are carried out under the cooperation of the magnetic conduction structure; and the upper end of the pushing block is connected with one end of the armature, and the lower end of the pushing block is connected with the free end of the movable reed of the contact part. The structure of the invention has the characteristics of simple part structure, complete functions, small product volume and large load capacity.
2. The invention adopts the concave surrounding frame structure of the upper cavity of the base, and the lower cavity is provided with the opening (namely, the left and right core pulling structure) which is outwards led out along the width direction of the base, so that the die structure is simple and the manufacturing cost is low.
3. The invention adopts the lower cavity, and two second retaining walls are arranged at the matched positions corresponding to the movable reed and the static reed, so that the isolation between the movable reed and the static reed is realized by utilizing the two second retaining walls and an air gap between the two second retaining walls, the insulation distance between the movable reed and the static reed is effectively improved, and the insulation drop caused by contact splashes between the movable reed and the static reed at the end of service life is avoided, and the fire danger is generated.
4. The invention adopts the structure that the upper part of the pushing block is convexly provided with two connecting arms with a certain distance and a certain length, the lower part of the pushing block is provided with a through hole which is approximately rectangular, the tail end of one end of the movable reed provided with the movable contact is movably hooked in the through hole at the lower part of the pushing block, the upper hole wall and the lower hole wall of the through hole of the pushing block are respectively in an arc shape, and the distance between the upper hole wall and the lower hole wall of the through hole of the pushing block is larger than the thickness dimension of the tail end of one end of the movable reed provided with the movable contact. According to the structure, the two connecting arms can be clamped into two sides of the width of the armature from the width direction of the armature by utilizing the characteristic that the two connecting arms can be flexibly opened, so that the pushing block is driven to move up and down when the armature swings up and down; when the pushing block acts, the pushing block is in line-surface contact with the movable reed, and a certain idle stroke can be formed, so that the relay has a certain acceleration process when the contact is disconnected, the contact can be better disconnected, and the surge current resistance of the relay is improved.
The invention is described in further detail below with reference to the drawings and examples; but a miniaturized high-power magnetic latching relay of the present invention is not limited to the embodiments.
Drawings
FIG. 1 is an exploded perspective view of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic perspective view of a base of an embodiment of the present invention;
FIG. 4 is a front view of a base of an embodiment of the present invention;
FIG. 5 is a top view of a base of an embodiment of the present invention;
FIG. 6 is a rear view of a base of an embodiment of the present invention;
FIG. 7 is a cross-sectional view of a base of an embodiment of the present invention;
fig. 8 is a schematic view of a partial structure of a magnetic circuit portion of an embodiment of the present invention;
fig. 9 is a front view of a partial structure of a magnetic circuit portion of an embodiment of the present invention;
FIG. 10 is a schematic perspective view of a coil form according to an embodiment of the present invention;
FIG. 11 is a schematic view of a perspective construction (flipped over an angle) of a coil former according to an embodiment of the invention;
FIG. 12 is a front view of a magnetic circuit portion of an embodiment of the present invention;
FIG. 13 is a schematic illustration of the cooperation of a push block with a movable spring and an armature in an embodiment of the invention;
FIG. 14 is a schematic view of a perspective configuration of a pusher block of an embodiment of the present invention;
FIG. 15 is a structural cross-sectional view of a pusher block of an embodiment of the present invention;
Fig. 16 is a schematic view of the construction of an armature of an embodiment of the invention;
fig. 17 is a schematic diagram of the engagement of an armature with a shaft member in accordance with an embodiment of the invention;
Fig. 18 is a schematic perspective view of a yoke according to an embodiment of the present invention.
Detailed Description
Examples
Referring to fig. 1 to 18, a miniaturized high-power magnetic latching relay of the present invention includes a base 1, a magnetic circuit portion 2, a push block 3, a contact portion 4, and a housing 5; the base 1 is provided with a first baffle wall 11 to divide the base 1 into an upper cavity 12 and a lower cavity 13, the magnetic circuit part 2 is arranged in the upper cavity 12, and the contact part 4 is arranged in the lower cavity 13 to realize strong and weak electric isolation; the magnetic circuit part 2 comprises an iron core 21, two yokes 22, a magnetic steel 23 and an armature 24; the iron core 21 is strip-shaped and horizontally arranged, and the yoke 22 is plate-shaped; the two yokes 22 are respectively fixed at two ends of the iron core 21, and the magnetic steel 23 is matched in the middle of the iron core 21, so that the iron core 21, the yokes 22 and the magnetic steel 23 form an E-shaped magnetic conduction structure which rotates by 90 degrees; the middle of the armature 24 is rotatably supported above the corresponding magnetic steel positions, and two ends of the armature 24 are respectively corresponding to the upper parts of the two yokes 22 so as to perform seesaw motions under the cooperation of the magnetic conductive structures; the upper end of the push block 3 is connected to one end of the armature 24, and the lower end of the push block 3 is connected to the free end of the movable spring 41 of the contact portion.
In this embodiment, the iron core 21 has a flat strip structure, a square notch 221 is provided in the middle of the yoke 22, and two yokes 22 are respectively fixed at two ends of the iron core 21 in the length direction by riveting through the square notch 221; shoulders 222 are arranged on two sides of the yoke 22, and the shoulders 222 are used as positioning structures of the magnetic circuit parts and are matched with the base 1; the top of the yoke 22 is provided as an operative pole face that mates with the two ends of the armature 24.
In this embodiment, the iron cores 21 are distributed along the length direction of the base 1, a notch 14 with an opening facing to the front and outer sides is provided at the front end of the base 1 for accommodating the pushing block 3, and one end of the armature 24 extends from above the upper cavity 12 to above the notch 14 and is connected to the upper end of the pushing block 3 accommodated in the notch 14; the bottom of the notch 14 communicates with the lower chamber 13 so that the lower end of the push block 3 accommodated in the notch is connected with the free end of the movable reed 41 of the contact portion of the lower chamber 13.
In this embodiment, the upper cavity 12 is a concave enclosure frame, the front part of the upper cavity 12 is provided with a supporting platform 121 for supporting the front part of the magnetic circuit part, the rear part 122 of the upper cavity is provided with a sink for matching the coil 25 of the magnetic circuit part, and a slope-shaped web 123 is provided between the front part and the rear part.
In this embodiment, two sides of the front and rear ends of the upper cavity 12 are respectively provided with a notch 124 for assembling the magnetic circuit part to realize positioning; the both side shoulders 222 of the two yokes 22 of the magnetic circuit part 2 are fitted into the notches 124 of both sides of the front and rear ends of the upper cavity 12, respectively; glue dispensing openings 15 are respectively arranged on two sides of the notch 14, so that the magnetic circuit part 2 is fixed in a glue dispensing mode when the clamping force is insufficient due to the fact that the magnetic circuit part is installed in the upper cavity 12.
In this embodiment, the lower cavity 13 is respectively provided with an opening that is opened outwards along the width direction of the base, and the movable reed 41 and the static reed 42 in the contact portion are respectively installed in the lower cavity 13 along two openings along the width direction of the base 1, and are fixed by plugging with a horizontal slot provided in the lower cavity 13.
In the lower cavity 13, two second blocking walls 131 are further disposed at the matched positions corresponding to the movable reed 41 and the static reed 42, so that the isolation between the movable reed and the static reed is realized by using the two second blocking walls 131 and an air gap between the two second blocking walls 131, and the insulation distance between the movable reed and the static reed is effectively improved.
In this embodiment, the coil 25 includes a bobbin 251; the bobbin 251 includes flanges 2511 at both ends in a length direction, a winding window 2512 between the flanges at both ends, and a core mounting hole 2513 penetrating the flanges at both ends in a length direction; a retaining wall 2514 is further provided at the middle position of the winding window 2512 of the coil frame to divide the winding window of the coil frame into a first winding window and a second winding window which are isolated; a downward concave groove 2515 is formed on the top surface of the retaining wall 2514, and the groove 2515 is communicated with the iron core mounting hole 2513; the iron core 21 is installed in the iron core installation hole 2513, two yokes 22 are respectively fitted to the outer sides of flanges 2511 at both ends of the bobbin 251, and the magnetic steel 23 is installed in the recess 2515; both sides of the groove 2515 are respectively provided with a limit boss 2516 to limit displacement of the magnetic steel 23 fitted into the groove 2515 in the width direction of the bobbin 251.
In this embodiment, a rotating shaft member 26 is further installed in the middle of the armature 24, so that two ends of the armature 24 have a teeterboard structure; the two sides of the rotating shaft piece 26 are respectively provided with a rotating shaft 261, the top of the limiting boss 2516 is provided with a semicircular notch 2517 for accommodating the rotating shaft 261 of the armature so as to match the rotating shaft 261 of the rotating shaft piece 26 of the armature, and the rotating shaft 261 of the armature is limited to move along the length direction of the coil frame 251.
In this embodiment, notches 241 for accommodating the shaft member are provided on both sides of the width of the middle part of the armature 24, which is biased toward the other end of the armature, respectively, the shaft member 26 is accommodated in the armature 24 through the notches 241 and is in interference fit with the armature 24 after being pushed toward the middle part, and protrusions 242 are provided on both sides of the width of the middle part of the armature 24, which is biased toward the one end of the armature, respectively, so as to limit the movement of the shaft member 26 toward the one end of the armature 24.
In this embodiment, the coil further includes an enamel wire 252 and a coil terminal 253; the coil terminals 253 include a start terminal, a common terminal, and an end terminal, and the three terminals 253 are mounted in a side-by-side manner in a flange on the side of the first winding window along the width direction of the coil former, and the three terminals are oriented in the same direction; a wire slot 2518 for connecting the first winding window and the second winding window is provided on the retaining wall 2514, and a bridge terminal 254 is provided, wherein the bridge terminal 254 has the same orientation as the three terminals 253; the enameled wire 252 is wound in a single-coil mode or a double-coil mode from the initial end terminal and then connected to the bridge terminal 254, and is connected to the final end terminal by the bridge terminal 254 crossing the first winding window, so that the space between the wound initial end wire and the final end wire is isolated.
When the single-coil winding is adopted, after the enameled wire 252 is led out from the initial end terminal, a first coil is wound on the first winding window, after the first coil is wound, the enameled wire 252 is led to the second winding window by the wire slot 2518, after the second coil is wound, the enameled wire is connected to the bridging terminal 254 and is connected to the terminal end terminal by the bridging terminal 254 crossing the first winding window, so that the space between the initial end line and the terminal end line of the single-coil structure after winding is isolated.
When the double-coil winding is adopted, after the enameled wire 252 is led out from the initial end terminal, a first coil is wound on the first winding window, after the first coil is wound, the enameled wire 252 is connected to the common terminal, then, from the common terminal, the enameled wire 252 is wound on the first winding window for several circles at a larger interval, and is led to the second winding window by the wire slot 2518 to wind the second coil, after the second coil is wound, the enameled wire is connected to the bridging terminal, and is connected to the tail end terminal by the bridging terminal crossing the first winding window, so that the space between the initial end wire of the first coil in the wound double-coil structure and the tail end wire of the second coil in the double-coil structure is isolated.
In this embodiment, two connecting arms 31 with a certain distance and a certain length are protruding upward from the upper portion of the pushing block 3, so that the two sides of the width of the armature 24 can be clamped from the width direction of the armature 24 by utilizing the flexible opening characteristic of the two connecting arms 31, and the pushing block 3 is driven to move up and down when the armature 24 swings up and down.
In this embodiment, a through hole 32 with a substantially rectangular shape is provided at the lower part of the pushing block 3, and the end of the movable contact point of the movable contact spring 41 is movably hooked in the through hole 32 at the lower part of the pushing block 3, so as to drive the movable contact point of the movable contact spring 41 to swing up and down when the pushing block moves up and down; the upper and lower hole walls of the through hole of the pushing block 3 are respectively provided with an arc shape, so that when the pushing block 3 acts, the pushing block is in line-surface contact with the movable contact, and the distance between the upper hole wall and the lower hole wall of the through hole 32 of the pushing block 3 is larger than the thickness dimension of the tail end of one end of the movable contact.
The invention relates to a miniaturized high-power magnetic latching relay, which is characterized in that a first baffle wall 11 is arranged on a base 1 to divide the base into an upper cavity 12 and a lower cavity 13, and a magnetic circuit part 2 and a contact part 4 are respectively arranged in the upper cavity 12 and the lower cavity 13, so that strong and weak electric isolation can be realized; the invention also adopts two yokes 22 which are respectively fixed at two ends of the iron core 21, and magnetic steel 23 which is matched in the middle of the iron core 21, so that the iron core, the yokes and the magnetic steel form an E-shaped magnetic conduction structure which rotates by 90 degrees; the middle of the armature 24 is rotatably supported above the position corresponding to the magnetic steel 23, so that two ends of the armature 24 are respectively corresponding to the upper parts of the two yokes 22 to perform seesaw type action under the cooperation of a magnetic conduction structure; and the upper end of the push block 3 is connected with one end of the armature 24, and the lower end of the push block 3 is connected with the free end of the movable spring 41 of the contact portion. The structure of the invention has the characteristics of simple part structure, complete functions, small product volume and large load capacity.
The miniaturized high-power magnetic latching relay adopts the concave surrounding frame structure of the upper cavity 12 of the base 1, and the lower cavity 13 is provided with the opening (namely, the left and right core pulling structure) which is outwards led out along the width direction of the base, so that the simple structure of the die and low manufacturing cost can be realized.
The invention relates to a miniaturized high-power magnetic latching relay, which adopts a lower cavity 13, and two second blocking walls 131 are arranged at the matched positions corresponding to a movable reed 41 and a static reed 42, so that the isolation between the movable reed and the static reed is realized by utilizing the two second blocking walls 131 and an air gap between the two second blocking walls 131, the insulation distance between the movable reed and the static reed is effectively improved, and the insulation drop caused by contact splash between the movable reed and the static reed at the end of service life is avoided, and the fire risk is generated.
The invention relates to a miniaturized high-power magnetic latching relay, which adopts two connecting arms 31 with a certain distance and a certain length which are arranged on the upper part of a pushing block 3 in a protruding mode, and a through hole 32 with a certain length which is arranged on the lower part of the pushing block 3, wherein the tail end of one end of a movable reed 41 provided with a movable contact is movably hooked in the through hole 32 on the lower part of the pushing block, the upper hole wall and the lower hole wall of the through hole 32 of the pushing block 3 are respectively in an arc shape, and the distance between the upper hole wall and the lower hole wall of the through hole 32 of the pushing block 3 is larger than the thickness dimension of the tail end of one end of the movable reed provided with the movable contact. According to the structure, the two connecting arms can be clamped into two sides of the width of the armature from the width direction of the armature by utilizing the characteristic that the two connecting arms can be flexibly opened, so that the pushing block is driven to move up and down when the armature swings up and down; when the pushing block acts, the pushing block is in line-surface contact with the movable reed, and a certain idle stroke can be formed, so that the relay has a certain acceleration process when the contact is disconnected, the contact can be better disconnected, and the surge current resistance of the relay is improved.
The foregoing is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. While the invention has been described with reference to preferred embodiments, it is not intended to be limiting. Many possible variations and modifications of the disclosed technology can be made by anyone skilled in the art, or be modified to equivalent embodiments, without departing from the scope of the technology. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present invention shall fall within the scope of the technical solution of the present invention.
Claims (13)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910614496.4A CN110335788B (en) | 2019-07-09 | 2019-07-09 | A miniaturized high-power magnetic latching relay |
| US16/910,605 US11501938B2 (en) | 2019-07-09 | 2020-06-24 | Magnetic latching relay |
| EP20182368.9A EP3764385B1 (en) | 2019-07-09 | 2020-06-25 | Magnetic latching relay |
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| CN111725032B (en) * | 2020-05-13 | 2025-10-03 | 厦门宏发电声股份有限公司 | A snap-on electromagnetic relay with a horizontal magnetic circuit structure |
| CN112038179A (en) * | 2020-07-22 | 2020-12-04 | 漳州宏发电声有限公司 | Limiting structure of moving spring lead-out piece and magnetic latching relay |
| CN112038180B (en) * | 2020-07-22 | 2025-03-11 | 漳州宏发电声有限公司 | A coil frame, coil and magnetic latching relay convenient for automatic winding |
| CN111863536A (en) * | 2020-08-04 | 2020-10-30 | 贵州天义电器有限责任公司 | Driving structure of micro-miniature sealed electromagnetic relay |
| CN112885646B (en) | 2021-01-15 | 2025-09-26 | 厦门宏发电力电器有限公司 | A snap-on bistable magnetic circuit structure and magnetic latching relay |
| CN114093714B (en) * | 2021-09-29 | 2025-08-12 | 漳州宏发电声有限公司 | Magnetic latching relay |
| CN116798816A (en) * | 2023-08-16 | 2023-09-22 | 漳州宏发电声有限公司 | a relay |
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| CN210156327U (en) * | 2019-07-09 | 2020-03-17 | 厦门宏发电声股份有限公司 | Miniaturized High Power Magnetic Latching Relay |
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| CN1269167C (en) * | 2002-08-21 | 2006-08-09 | 厦门宏发电声有限公司 | Miniaturized great-power electromagnetic relay with upper and lower variable-section cavities |
| JP2005183083A (en) * | 2003-12-17 | 2005-07-07 | Matsushita Electric Works Ltd | Electromagnetic relay |
| CN102103944A (en) * | 2009-12-17 | 2011-06-22 | 厦门宏发电声股份有限公司 | Magnetic latching relay with novel magnetic circuit |
| CN102103943A (en) * | 2009-12-17 | 2011-06-22 | 厦门宏发电声股份有限公司 | Magnetic latching relay with novel magnetic circuit |
| WO2012155829A1 (en) * | 2011-05-19 | 2012-11-22 | 厦门宏发电声股份有限公司 | Magnetic circuit structure of polarized relay |
| DE102012006436B4 (en) * | 2012-03-30 | 2020-01-30 | Phoenix Contact Gmbh & Co. Kg | Poled electromagnetic relay and process for its manufacture |
| DE102012006438A1 (en) * | 2012-03-30 | 2013-10-02 | Phoenix Contact Gmbh & Co. Kg | Relay with two counter-operable switches |
| GB201402560D0 (en) * | 2014-02-13 | 2014-04-02 | Johnson Electric Sa | Improvements in or relating to electrical contactors |
| CN106548905B (en) * | 2017-01-12 | 2019-01-08 | 深圳市西科技术有限公司 | A kind of radio-frequency relay electromagnetic driving system |
| CN107017125A (en) * | 2017-03-28 | 2017-08-04 | 厦门宏发电声股份有限公司 | A kind of strong and weak relay for being electrically isolated and being easy to implement Automated assembly |
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