CN107369977B - Direct current plug, direct current socket and consumer - Google Patents
Direct current plug, direct current socket and consumer Download PDFInfo
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- CN107369977B CN107369977B CN201710784732.8A CN201710784732A CN107369977B CN 107369977 B CN107369977 B CN 107369977B CN 201710784732 A CN201710784732 A CN 201710784732A CN 107369977 B CN107369977 B CN 107369977B
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- 238000000034 method Methods 0.000 claims abstract description 20
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- 239000002131 composite material Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 abstract description 71
- 230000037431 insertion Effects 0.000 abstract description 71
- 238000010891 electric arc Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 239000003990 capacitor Substances 0.000 description 6
- 238000005265 energy consumption Methods 0.000 description 5
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- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
The invention discloses a direct current plug, a direct current socket and electric equipment. The direct current plug comprises a plug base and an inserting part arranged on the plug base and used for inserting a direct current socket, the inserting part comprises an anode inserting part and a cathode inserting part, at least one of the anode inserting part and the cathode inserting part is a combined structure inserting part, the combined structure inserting part comprises an inserting part resistance section and an inserting part conductor section, the inserting part resistance section and the plug base are arranged at intervals, and the inserting part conductor section is located between the inserting part resistance section and the plug base. The direct current plug not only can enable the resistance section of the insertion part to be connected into the loop to play a role in limiting current in the process of plugging and unplugging the direct current plug, but also can enable the resistance section of the insertion part to be short-circuited after the direct current plug is completely inserted into the direct current socket, so that the loop is cut out, and normal work of electric equipment is not affected.
Description
Technical Field
The invention relates to the technical field of electronic equipment, in particular to a direct current plug, a direct current socket and electric equipment.
Background
With the development of direct-current power, the application occasions of medium and small direct-current systems are gradually increased, such as data centers, machine rooms, home direct-current systems, direct-current micro-grid systems and the like. For the purpose of filtering and voltage-stabilizing, a capacitor is usually connected in parallel to the input of the consumer when designing the consumer. However, when the electric equipment with the capacitor is connected to the direct current system, the following problems exist: the capacitor generates larger impact current at the moment when the plug of the electric equipment is inserted into the socket, so that the direct current system is damaged to a certain extent; in addition, because the direct current has no voltage current zero crossing point, the arc discharge phenomenon of large current can occur at the moment of pulling out the plug, thereby causing certain safety problem.
The plug and the socket are important links for the direct current electric equipment to be connected into a direct current system. At present, the types of plugs and sockets on the market are not numerous, but the plugs and the sockets are designed according to the technical parameters of an alternating current system, and the current function is not limited. The low-voltage direct-current plug and the low-voltage direct-current socket are basically only two, namely a 5V USB interface and a 12V, 24V or 48V low-voltage round-head interface. Because the interfaces of the plug and the socket are low-voltage interfaces, the problem of impulse current when the electric equipment is connected into a direct current system and the problem of arc discharge when the electric equipment is cut out are not considered.
Disclosure of Invention
The invention aims to provide a direct current plug, a direct current socket and electric equipment, which aim to solve the problem of inrush current when the electric equipment is plugged into a direct current system and the problem of arc discharge when the electric equipment is cut off in the prior art.
The invention provides a direct current plug, which is used for being electrically connected with a direct current socket to supply power to electric equipment, the direct current plug comprises a plug base and an insertion part arranged on the plug base and used for being inserted into the direct current socket, the insertion part comprises an anode insertion part and a cathode insertion part, at least one of the anode insertion part and the cathode insertion part is a combined structure insertion part, the combined structure insertion part comprises an insertion part resistance section and an insertion part conductor section, the insertion part resistance section is arranged at a distance from the plug base, and the insertion part conductor section is positioned between the insertion part resistance section and the plug base.
Further, the interposer conductor segment is directly connected to the interposer resistor segment.
Further, the composite structure insertion portion is composed of an insertion portion resistance section and an insertion portion conductor section.
Further, the direct current plug comprises a position locking structure, and the position locking structure is used for preventing the direct current plug from being separated from the direct current socket.
Furthermore, the position locking structure comprises a connecting clamping groove arranged on the inserting part, and the connecting clamping groove is used for being matched with a connecting bulge arranged on the direct current socket so as to lock the positions of the direct current plug and the direct current socket; and/or the position locking structure comprises a connecting bulge arranged on the insertion part, and the connecting bulge is used for being matched with a connecting groove arranged on the direct current socket so as to lock the positions of the direct current plug and the direct current socket.
Furthermore, a connecting clamping groove on the insertion part is arranged on the insertion part conductor section; and/or the connecting projection on the insert is arranged on the insert conductor section.
A second aspect of the invention provides an electrical device comprising a dc plug as provided in any one of the first aspects of the invention.
A third aspect of the present invention provides a dc socket for cooperating with a dc plug to supply power to an electrical device, the dc socket including a socket base, a jack contact member provided on the socket base, the jack contact member forming at least a part of an inner wall of a jack for inserting the dc plug, the jack contact member including an anode jack contact member and a cathode jack contact member, at least one of the anode jack contact member and the cathode jack contact member being a composite structure contact member, the composite structure contact member including a jack resistive segment and a jack conductor segment, the jack resistive segment and the jack conductor segment being arranged at an interval, and the jack resistive segment being located outside the jack conductor segment.
Further, the jack resistor section is directly connected with the jack conductor section.
Further, the composite structure contact member is composed of a jack resistance section and a jack conductor section.
Further, the direct current socket also comprises a position locking structure, and the position locking structure is used for preventing the direct current plug from being separated from the direct current socket.
Further, in the process of plugging and unplugging the direct current plug, the inner wall of the jack is telescopically arranged in the radial direction of the jack so as to facilitate the plugging and unplugging of the direct current plug.
Further, the direct current socket comprises a first aperture wall section and a second aperture wall section which are arranged along the circumference of the jack, and the jack contact forms the first aperture wall section, wherein during plugging and unplugging of the direct current plug, the first aperture wall section is movably arranged in the radial direction of the jack; and/or the second wall section is formed by the first elastic member to deform the second Kong Biduan in the radial direction of the jack after being stressed.
Further, direct current socket includes the movable body, and the one side that is located the radial direction of jack of movable body sets up first pore wall section, and the opposite side that is located the radial direction of jack of movable body sets up the second elastic component, and at the in-process of direct current plug, the second elastic component takes place to warp so that the movable body can move on the radial direction of jack and drive first pore wall section motion after the atress in the radial direction of jack.
Furthermore, the direct current socket also comprises a limiting structure, and the limiting structure limits the limit position of the movable body.
Furthermore, limit structure is including setting up in the spacing groove of one of activity body and socket base and setting up the spacing arch on another of activity body and socket base, and spacing arch removes in the spacing inslot in order to restrict the extreme position of activity body.
According to the direct current plug, the direct current socket and the electric equipment provided by the invention, the direct current plug comprises a plug base and an insertion part which is arranged on the plug base and is used for being inserted into the direct current socket, and the insertion part comprises an anode insertion part and a cathode insertion part. At least one of the anode insertion part and the cathode insertion part is a combined structure insertion part, the combined structure insertion part comprises an insertion part resistance section and an insertion part conductor section, the insertion part resistance section and the plug base are arranged at intervals, and the insertion part conductor section is located between the insertion part resistance section and the plug base. When the direct current plug is in an initial state of being inserted into the direct current socket, the inserting part resistor section is connected to a power supply loop of the electric equipment before the inserting part conductor section, so that the impact current generated at the moment of inserting the direct current plug is limited. When the direct current plug is in a later state of being inserted into the direct current socket, the insertion part conductor section is connected into a power supply loop of the electric equipment, and the insertion part resistor section is short-circuited to cut out the power supply loop, so that the insertion part resistor section is prevented from influencing the normal operation of the electric equipment, and the energy consumption is reduced. When the direct current plug is pulled out of the direct current socket, the insertion part resistor section is gradually connected into a power supply loop of the electric equipment so as to enable the resistance connected into the power supply loop to be gradually increased, therefore, the loop current is gradually reduced, the resistance connected into the power supply loop at the moment when the direct current plug is pulled out of the direct current socket is the largest, the current is the smallest, and therefore the risk that the direct current plug is pulled out of the direct current socket to generate arc discharge at the moment is reduced.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention and do not constitute a limitation of the invention. In the drawings:
fig. 1 is a schematic structural diagram of a dc plug according to a first embodiment of the present invention when the dc plug is not inserted into a dc socket;
FIG. 2 is a schematic structural diagram of a DC plug of the first embodiment of the present invention at the moment of being inserted into a DC socket;
FIG. 3 is a schematic structural diagram of the DC plug of the first embodiment of the present invention when fully inserted into the DC outlet;
FIG. 4 is a schematic structural diagram of the DC plug of the first embodiment of the present invention at the moment of pulling out the DC socket;
FIG. 5 is a schematic structural diagram of a DC plug according to a second embodiment of the present invention when the DC plug is not plugged into a DC socket;
FIG. 6 is a schematic structural diagram of a DC plug in a second embodiment of the present invention at the moment of being inserted into a DC socket;
FIG. 7 is a schematic structural diagram of a DC plug according to a second embodiment of the present invention when fully inserted into a DC socket;
fig. 8 is a schematic structural diagram of the dc plug according to the second embodiment of the present invention when the dc plug is pulled out of the dc socket.
Each reference numeral represents:
1-a plug base; 2-inserting pins; 21-pin resistance segment; 22-a stylet conductor segment; 23-a connecting groove; 3-a socket base; 4-a jack contact; 41-jack resistive segment; 42-jack conductor sections; 43-connecting projections; 5-a movable body; 6-a first elastic member; 7-a second elastic member; d-electric equipment.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
For ease of description, spatially relative terms such as "over … …", "over … …", "over … …", "over", etc. may be used herein to describe the spatial positional relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may be otherwise variously positioned and the spatially relative descriptors used herein interpreted accordingly.
The embodiment of the invention provides a direct current plug which is electrically connected with a direct current socket to supply power to electric equipment. The direct current plug comprises a plug base and an inserting part which is arranged on the plug base and used for being inserted into a direct current socket. The insertion portion includes an anode insertion portion and a cathode insertion portion. At least one of the anode insert and the cathode insert is a composite structure insert. The combined structure insertion part comprises an insertion part resistance section and an insertion part conductor section, the insertion part resistance section and the plug base are arranged at intervals, and the insertion part conductor section is located between the insertion part resistance section and the plug base.
When the direct current plug is in an initial state of being plugged into the direct current socket, the plug-in part resistor section is connected to a power supply loop of the electric equipment before the plug-in part conductor section, and therefore the impact current generated at the moment of plugging the direct current plug is limited. When the direct current plug is in a later state of being inserted into the direct current socket, the insertion part conductor section is connected into a power supply loop of the electric equipment, and the insertion part resistor section is short-circuited to cut out the power supply loop, so that the insertion part resistor section is prevented from influencing the normal operation of the electric equipment, and the energy consumption is reduced. When the direct current plug is pulled out of the direct current socket, the insertion part resistor section is gradually connected into a power supply loop of the electric equipment so as to enable the resistance connected into the power supply loop to be gradually increased, therefore, the loop current is gradually reduced, the resistance connected into the power supply loop at the moment when the direct current plug is pulled out of the direct current socket is the largest, the current is the smallest, and therefore the risk that the direct current plug is pulled out of the direct current socket to generate arc discharge at the moment is reduced.
Preferably, the cathode insertion part and the anode insertion part of the dc plug of the embodiment of the present invention are both composite structure insertion parts. When the direct current plug is plugged into the direct current socket in an initial state, the plug-in part resistance section of the anode plug-in part and the plug-in part resistance section of the cathode plug-in part are both connected into a power supply loop of the electric equipment, namely, two resistors are connected into the power supply loop of the electric equipment, so that the impulse current at the moment of plugging is limited. After the direct current plug is completely inserted into the direct current socket, the two insertion part resistor sections are both short-circuited, so that the normal operation of the equipment is not influenced. When the direct current plug is pulled out of the direct current socket, the resistance connected into the power supply loop is gradually increased, so that the current is gradually reduced, the direct current plug is pulled out under low current, and the arc discharge risk of pulling out the equipment is reduced.
Preferably, the dc plug of the embodiment of the present invention further includes a position locking structure. The position locking structure is used for preventing the direct current plug from being separated from the direct current socket. The arrangement of the position locking structure can ensure that the direct current plug is stably electrically connected with the direct current socket, thereby ensuring the power supply stability of the electric equipment.
Embodiments of the present invention also provide a dc outlet for cooperating with a dc plug to supply power to an electrical device. The direct current socket of the embodiment of the invention comprises a socket base and a jack contact piece arranged on the socket base, wherein the jack contact piece forms at least part of the inner wall of a jack for inserting a direct current plug. The jack contact piece comprises an anode jack contact piece and a cathode jack contact piece, at least one of the anode jack contact piece and the cathode jack contact piece is a combined structure contact piece, the combined structure contact piece comprises a jack resistance section and a jack conductor section, the jack resistance section and the jack conductor section are arranged at intervals, and the jack resistance section is located on the outer side of the jack conductor section.
When the direct current plug is in an initial state of being inserted into the direct current socket, the jack resistor section positioned on the outer side is connected into a power supply loop of the electric equipment, so that impact current generated at the moment of inserting the direct current plug is limited. When the direct current plug is in a later state of being inserted into the direct current socket, the jack conductor section is connected into a power supply loop of the electric equipment, and the jack resistor section is short-circuited to cut out the power supply loop, so that the jack resistor section is prevented from influencing the normal operation of the power supply equipment, and the energy consumption is reduced. When the direct current plug is pulled out of the direct current socket, the jack resistor section is gradually connected into a power supply loop of the electric equipment so as to gradually increase the resistance connected into the power supply loop, therefore, the loop current is gradually reduced, the resistance connected into the power supply loop is the largest at the moment when the direct current plug is pulled out of the direct current socket, so the current is the smallest, and the risk that the direct current plug is pulled out of the direct current socket to generate arc discharge at the moment is reduced.
It should be noted that the "outer side" of the jack resistance segment located in the outer side of the jack conductor segment refers to a side of the outer end thereof with respect to the bottom end in the depth direction of the jack.
Preferably, the cathode receptacle contact and the anode receptacle contact of embodiments of the present invention are both combination receptacle contacts. When the direct current plug is inserted into the direct current socket in an initial state, the contact resistance section of the anode contact and the contact resistance section of the cathode contact are both connected into a power supply loop of the electric equipment, namely, the two resistors are connected into the power supply loop of the electric equipment, so that the impact current at the moment of insertion is limited. After the direct current plug is completely inserted into the direct current socket, the two contact resistance sections are both short-circuited, so that the normal operation of the equipment is not influenced. When the direct current plug is pulled out of the direct current socket, the resistance accessed by the power supply loop is gradually increased to gradually reduce the current, and the direct current plug is pulled out under low current to reduce the arc discharge risk of pulling out equipment.
The structure and the working process of the dc plug and the dc socket according to two embodiments of the present invention will be described in detail with reference to fig. 1 to 8.
First embodiment
Fig. 1 to 4 show the structures of a dc plug and a dc socket and the working process of the cooperation between the two according to a first embodiment of the present invention.
As shown in fig. 1 to 4, in the present embodiment, the dc plug includes a plug base 1 and an insertion portion provided on the plug base 1. The insertion portion is a pin 2 extending to the outside of the plug base 1. The pins 2 comprise pin resistor segments 21 at the end remote from the plug base 1 and pin conductor segments 22 at the end close to the plug base 1.
When the dc plug is in an initial state of being inserted into the dc socket, the pin resistor segment 21 is connected to a power supply loop of the electric equipment so as to limit an impulse current generated at the moment of inserting the dc plug. When the direct current plug is in a later state of being inserted into the direct current socket, the pin conductor section 22 is connected into a power supply loop of the electric equipment, and the pin resistance section 21 is short-circuited to cut out the power supply loop, so that the pin resistance section 21 is prevented from influencing the normal operation of the electric equipment and reducing energy consumption. When the dc plug is pulled out of the dc socket, the pin resistor segment 21 is gradually connected to the power supply circuit of the electric equipment to gradually increase the resistance connected to the power supply circuit, so that the loop current is gradually reduced, the resistance connected to the power supply circuit is the largest at the moment when the dc plug is pulled out of the dc socket, and the current is the smallest, thereby reducing the risk of arc discharge generated at the moment when the dc plug is pulled out of the dc socket.
To sum up, this embodiment sets up the structure for contact pin resistance section and contact pin conductor segment concatenation through the contact pin with direct current plug, not only can make contact pin resistance section insert the effect that plays the limiting current in the return circuit at the in-process of direct current plug, can also make contact pin resistance section by the short circuit and cut out the return circuit and then do not influence consumer normal work in direct current socket after direct current plug inserts completely in moreover. In addition, the contact pin of the embodiment has a simple structure, is easy to manufacture, and is convenient to popularize and use in production practice.
In an embodiment not shown in the drawings, the insertion portion may also be in other forms than a pin in the present embodiment. The pin can be in any shape such as cylindrical shape and square shape as long as the pin can be electrically connected with the jack of the direct current socket.
As shown in fig. 1, the dc plug of the present embodiment includes a plug base 1 and two pins disposed on the plug base 1. The two pins are an anode pin and a cathode pin respectively. Likewise, the dc outlet of the present embodiment includes the outlet base 1 and two insertion holes provided in the outlet base 1. The two contact pins are electrically connected with the corresponding jacks respectively to supply power to the electric equipment.
In this embodiment, the two pins have the same structure, and the structure of one of the pins, the structure of the socket matched with the pin, and the working process of matching the pin and the socket will be described below by taking one of the pins as an example.
As shown in fig. 2, when the dc plug is inserted into the dc socket, the pin resistor 21 located at the front end of the pin 2 is first contacted with the jack contact 4, that is, the pin resistor 21 is first connected to the power supply circuit, and at this time, the resistance of the power supply circuit increases, so as to effectively suppress the instantaneous impact current when the power supply device is connected to the dc system. As shown in fig. 4, in the process of pulling the dc plug out of the dc receptacle, the pin resistor segment 21 is gradually connected to the power supply loop to gradually increase the resistance of the power supply loop, and the current is gradually decreased. As shown in fig. 3, after the pin is completely inserted into the socket of the dc socket, the pin conductor segment 22 is electrically connected to the socket contact 4 and the pin resistor segment 21 is short-circuited, so that the normal operation of the electric device is not affected.
In the present embodiment, the pin resistor segment 21 and the pin conductor segment 22 are directly connected and respectively located at two ends of the pin 2.
In other embodiments not shown in the drawings, the pin resistor segment 21 and the pin conductor segment 22 may also be indirectly connected, for example, a conductive material of another material may be disposed between the pin resistor segment 21 and the pin conductor segment 22 for transition connection, such as an inductor or a thermistor.
In other embodiments not shown in the figures, the pin may also include other structures in addition to the pin resistor segments and pin conductor segments, such as an insulating segment at the end of the pin resistor segments.
Specifically, in this embodiment, the length of the pin resistor segment 21 is greater than the length of the pin conductor segment 22. The length of the pin resistor segment 21 is designed according to the size of the capacitor connected in parallel with the power input terminal of a specific electric device. In the design process of an actual dc plug, the length of the pin resistor segment 21 or the material of the pin resistor segment 21 may be designed according to the size of the capacitor connected in parallel to the power input terminal of the electric device D to suppress the inrush current generated by the capacitor within a standard range.
In order to better connect the dc plug with the dc socket to ensure the stability of power supply of the electrical equipment, the dc plug of the embodiment includes a position locking structure. The position locking structure is used for preventing the pin 2 from being separated from the direct current socket.
Specifically, in the present embodiment, as shown in fig. 1, the position locking structure of the present embodiment includes a connection slot 23 disposed on the pin conductor section 22, and the connection slot 23 is configured to cooperate with a connection protrusion 43 disposed on the dc socket to connect the pin 2 with the dc socket. The connecting protrusion 43 is disposed at the outer end of the jack contact member 4, and when the inserting pin 2 is gradually inserted into the jack, and the connecting protrusion 43 is stuck in the connecting groove 23, the movement of the inserting pin 2 is limited to prevent the inserting pin 2 from being separated from the dc socket, so as to ensure that the inserting pin 2 and the jack contact member 4 form a stable electrical connection.
Of course, for connecting the pin to the dc socket, it is also possible to provide a connection projection on the socket contact 4 of the socket and a connection recess on the pin conductor section 22.
In other embodiments not shown in the drawings, a connecting slot or a connecting protrusion that is matched with the dc socket may be disposed on the pin resistor segment, as long as the pin resistor segment can prevent the pin from being separated from the dc socket.
In order to facilitate the plugging and unplugging of the dc plug, the inner wall of the jack of the dc socket of this embodiment is telescopically arranged in the radial direction of the jack in the process of plugging and unplugging the dc plug, so as to facilitate the plugging and unplugging of the dc plug. When the contact pin 2 is inserted into the jack, the inner wall of the jack is extruded by the contact pin 2 to expand towards the radial outer side so as to be convenient for the insertion of the contact pin; when the contact pin 2 is pulled out, the inner wall of the jack retracts to the radial inner side without the extrusion of the contact pin, thereby facilitating the pulling out of the contact pin.
In particular, in the present embodiment, as shown in fig. 1 and 2, the dc outlet includes first and second wall sections disposed along a circumference of the receptacle. The socket contact 4 forms a first aperture wall section and the first spring 6 forms a second aperture wall section. Because the second hole wall section is formed by the first elastic piece 6, the first elastic piece 6 can deform due to the extrusion of the contact pin in the process of inserting and pulling the contact pin 2 into the jack, so that the insertion and pulling are convenient. And after the contact pin 2 is completely inserted into the jack, the elastic acting force of the first elastic piece 6 acts on the contact pin 2 to form a certain pressing force on the contact pin 2, so that the contact pin 2 is contacted with the jack contact piece 4 more firmly, and the stability of the electric connection between the contact pin and the jack is improved.
Specifically, as shown in fig. 1, the first elastic member 6 includes an arc-shaped elastic sheet. The arc of the arc-shaped elastic sheet plays a role in guiding the insertion and the pulling-out of the insertion hole of the insertion pin, and the insertion and pulling convenience of the insertion pin is further improved.
In this embodiment, the first elastic member 6 includes two arc-shaped elastic pieces arranged along the depth direction of the insertion hole.
Preferably, the first wall section is arranged movably in the radial direction of the plug socket during insertion and removal of the direct current plug.
As shown in fig. 1 to 4, the dc outlet of the present embodiment includes a movable body 5. One side of the radial direction that is located the jack of activity body 5 sets up first pore wall section, and the opposite side that is located the radial direction of jack of activity body 5 sets up second elastic component 7, and at the in-process of direct current plug, second elastic component 7 atress warp and thereby make activity body 5 move on the radial direction of jack for socket base 3 and drive first pore wall section and move. Specifically, in the process that the contact pin 2 is inserted into the jack, the contact pin 2 extrudes the first hole wall section, and at this time, because the second elastic member 7 has elasticity, the movable body 5 can move to the radial outer side after being extruded to drive the first hole wall section to move so that the contact pin is easily inserted. After the contact pin is inserted, the elastic deformation of the second elastic part 7 is recovered to apply a certain pressing force to the first hole wall section, namely the jack contact part, so that the jack contact part is in close contact with the contact pin, and the stability of electric connection is ensured.
As shown in fig. 1, the dc outlet of the present embodiment includes two movable bodies disposed corresponding to two insertion holes. Two second elastic components that correspond with two movable bodies and be connected butt each other, consequently at the in-process of direct current plug, two second elastic components take place to warp simultaneously.
In order to limit the limit position of the movable body 5, the dc outlet of the present embodiment further includes a limit structure.
Specifically, as shown in fig. 1 to 4, the limiting structure includes a limiting groove disposed on the movable body 5 and a limiting protrusion disposed on the socket base 3, and the limiting protrusion moves in the limiting groove to limit the limit position of the movable body. In the process of moving the movable body 5, when the limiting protrusion abuts against the inner wall of the upper side of the limiting groove, the first limiting position of the movable body 5 is limited; and when the limiting protrusion is abutted against the lower side inner wall on the limiting groove, the second limit position of the movable body 5 is limited.
Of course, the movable body may be provided with a limit protrusion, and the socket base may be provided with a limit groove, which may also serve to limit the limit position of the movable body 5.
Second embodiment
Fig. 5 to 8 show the structure of the dc plug and the dc socket and the working process of the cooperation between them according to the second embodiment of the present invention.
As shown in fig. 5 to 8, unlike the first embodiment, the direct current socket of the present embodiment has a different structure of the socket contact.
The dc outlet of the present embodiment is adapted to mate with a dc plug to supply power to a powered device. The dc outlet of the present embodiment includes a cathode jack and an anode jack. The two jacks have the same structure, and the structure of one jack will be described as an example.
The dc outlet of the present embodiment includes a socket base 3 and a socket contact 4 that is provided on the socket base 3 and electrically connected to a dc plug. The socket contact 4 forms at least part of the inner wall of the socket. The jack contact 4 comprises a jack resistor segment 41 at the outer end of the jack and a jack conductor segment 42 at the inner end of the jack.
When the dc plug is in the initial state of being plugged into the dc socket, the plug resistor segment 41 at the outer end of the plug is connected to the power supply loop of the electric equipment, so as to limit the impulse current generated at the moment of inserting the dc plug. When the dc plug is in a later state of being plugged into the dc socket, the jack conductor segment 42 is connected into a power supply loop of the electric device and the jack resistor segment 41 is short-circuited to cut out the power supply loop, thereby preventing the jack resistor segment 41 from affecting the normal operation of the electric device and reducing the energy consumption. When the dc plug is plugged out of the dc socket, the jack resistor segment 41 is gradually connected to the power supply circuit of the power consumption device to gradually increase the resistance connected to the power supply circuit, so that the loop current is gradually reduced, the resistance connected to the power supply circuit is the largest at the moment when the dc plug is plugged out of the dc socket, and the current is the smallest, thereby reducing the risk of arc discharge generated at the moment when the dc plug is plugged out of the dc socket.
As shown in fig. 5 and 6, the pins 2 of the dc plug of the present embodiment are conductors as a whole. When the pin 2 moves into the jack, the pin 2 is firstly contacted with the jack resistance section 41 at the outer end of the jack, and at the moment, the jack resistance section 41 is firstly connected into the loop, so that the impact current generated at the moment that the direct current plug is inserted into the direct current socket is limited.
As shown in fig. 7, when the pin 2 is fully inserted into the jack of the dc socket, the jack resistor segment 41 is short-circuited and cut out of the loop, and the jack conductor segment 42 is connected into the loop, so as not to affect the normal operation of the electric device.
As shown in fig. 7 to 8, in the process of completely inserting the dc plug into the dc socket and removing the dc plug from the dc socket, the resistance in the incoming loop gradually increases from zero to the maximum resistance at the moment when the contact pin leaves the dc socket, so that the current in the loop is limited, and the risk of arcing when the electrical equipment is switched out of the dc system is effectively reduced.
Preferably, the dc outlet of the present embodiment includes a position locking structure. The position locking structure is used for preventing the direct current plug from being separated from the direct current socket. The arrangement of the position locking structure effectively ensures the stability of the electric connection between the direct current plug and the direct current socket.
As shown in fig. 5, the position locking structure of the present embodiment includes a connection protrusion disposed at an end of the insertion pin and a connection groove disposed at a section of the receptacle conductor. The connection protrusion and the connection groove are matched to connect the pin with the jack and prevent the pin from being separated from the connection groove, thereby preventing the direct current plug from being separated from the direct current socket.
Of course, the connecting protrusion may be disposed at any position of the pin, and is not limited to be disposed at the end of the pin. Likewise, the connection recess can also be provided at any position of the socket contact.
Other structures of the dc socket and the dc pin, which are not described in the second embodiment, and the connection relationship, functions, effects, and the like between the structures may refer to the first embodiment.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that: modifications of the embodiments of the invention or equivalent substitutions for parts of the technical features are possible; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (4)
1. A dc socket for cooperating with a dc plug for supplying power to an electrical consumer, characterized in that the dc socket comprises a socket base (3), a socket contact (4) arranged on the socket base (3), the socket contact (4) forming at least part of an inner wall of a socket for inserting the dc plug, the socket contact comprising an anode socket contact and a cathode socket contact, both the anode socket contact and the cathode socket contact being combined structure contacts, the combined structure contacts comprising a socket resistive section (41) and a socket conductor section (42), the socket resistive section and the socket conductor section being arranged at an interval or directly connected, and the socket resistive section (41) being located outside the socket conductor section (42), the socket having a first socket wall section and a second socket wall section arranged along a circumference of the socket, the socket contact (4) forming the first socket wall section, wherein during plugging of the dc plug the first socket is movably arranged in a radial direction of the socket; the second hole wall section is formed by a first elastic piece (6) so that the second Kong Biduan deforms after being stressed in the radial direction of the jack, the direct-current socket comprises a movable body (5), one side, in the radial direction, of the jack of the movable body (5) is provided with the first hole wall section, the other side, in the radial direction, of the jack of the movable body (5) is provided with a second elastic piece (7), in the process of plugging and unplugging of the direct-current plug, the second elastic piece (7) deforms after being stressed in the radial direction of the jack so that the movable body (5) can move in the radial direction of the jack to drive the first hole section to move, the first elastic piece (6) comprises two arc-shaped elastic pieces arranged in the depth direction of the jack, the direct-current socket further comprises two movable bodies arranged corresponding to the two jacks, the two second elastic pieces correspondingly connected with the two movable bodies are abutted against each other so that the two second elastic pieces in the process of plugging and unplugging the direct-current plug can generate deformation at the same time, and the direct-current socket further comprises a limit structure (5) limiting position.
2. The dc jack according to claim 1, wherein the composite structure contact is composed of the jack resistance segment (41) and the jack conductor segment (42).
3. The dc outlet of claim 1, further comprising a position locking structure configured to prevent the dc plug from being removed from the dc outlet.
4. The dc jack according to claim 1, wherein the stopper structure includes a stopper groove provided on one of the movable body (5) and the jack base (3), and a stopper protrusion provided on the other of the movable body (5) and the jack base (3), the stopper protrusion moving within the stopper groove to restrict the limit position of the movable body.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710784732.8A CN107369977B (en) | 2017-09-04 | 2017-09-04 | Direct current plug, direct current socket and consumer |
| PCT/CN2018/099241 WO2019042096A1 (en) | 2017-09-04 | 2018-08-07 | Direct current plug, direct current socket, and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710784732.8A CN107369977B (en) | 2017-09-04 | 2017-09-04 | Direct current plug, direct current socket and consumer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107369977A CN107369977A (en) | 2017-11-21 |
| CN107369977B true CN107369977B (en) | 2023-04-18 |
Family
ID=60312171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710784732.8A Active CN107369977B (en) | 2017-09-04 | 2017-09-04 | Direct current plug, direct current socket and consumer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107369977B (en) |
| WO (1) | WO2019042096A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107369977B (en) * | 2017-09-04 | 2023-04-18 | 珠海格力电器股份有限公司 | Direct current plug, direct current socket and consumer |
| CN109449694B (en) * | 2018-11-14 | 2024-04-30 | 上海电科电器科技有限公司 | DC plug structure |
| CN114204358B (en) * | 2021-12-13 | 2022-10-28 | 西安交通大学 | Household direct current plug and socket with capacitor and working method |
| CN114498090B (en) * | 2021-12-21 | 2024-06-07 | 平高集团有限公司 | Connecting structure between conductive components and conductive parts |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7136266B2 (en) * | 2002-10-09 | 2006-11-14 | Leviton Manufacturing Co., Inc. | Leakage current detection interrupter extension cord with cord diagnostics |
| US6857887B1 (en) * | 2003-10-29 | 2005-02-22 | Hewlett-Packard Development Company, L.P. | Current limit engagement apparatus |
| US7063550B1 (en) * | 2005-01-13 | 2006-06-20 | Liang Tei Co., Ltd. | Waterproof structure applied to AC plug and socket |
| CN100546116C (en) * | 2006-05-31 | 2009-09-30 | 富士康(昆山)电脑接插件有限公司 | electronic card connector |
| US8226425B2 (en) * | 2009-07-31 | 2012-07-24 | American Power Conversion Corporation | Sparkless electrical connector |
| JP6282286B2 (en) * | 2013-01-04 | 2018-02-21 | アンダーソン・パワー・プロダクツ・インコーポレーテッドＡｎｄｅｒｓｏｎ Ｐｏｗｅｒ Ｐｒｏｄｕｃｔｓ Ｉｎｃｏｒｐｏｒａｔｅｄ | Electrical connector with arc prevention function |
| CN103811894B (en) * | 2014-02-26 | 2018-07-06 | 泉州兆维信息技术有限公司 | That eliminates electric spark patches electrode and chemical treatment production technology |
| CN103811898A (en) * | 2014-02-26 | 2014-05-21 | 陆腾蛟 | Inserted electrode without electric spark and coating production process |
| CN104505617A (en) * | 2014-12-21 | 2015-04-08 | 马骏劼 | Groove plug |
| CN107369977B (en) * | 2017-09-04 | 2023-04-18 | 珠海格力电器股份有限公司 | Direct current plug, direct current socket and consumer |
| CN207124329U (en) * | 2017-09-04 | 2018-03-20 | 珠海格力电器股份有限公司 | Direct current plug, direct current socket and consumer |
-
2017
- 2017-09-04 CN CN201710784732.8A patent/CN107369977B/en active Active
-
2018
- 2018-08-07 WO PCT/CN2018/099241 patent/WO2019042096A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019042096A1 (en) | 2019-03-07 |
| CN107369977A (en) | 2017-11-21 |
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