CN110943346B - Socket structure, power connector and plug connection method of power connector - Google Patents

Socket structure, power connector and plug connection method of power connector Download PDF

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Publication number
CN110943346B
CN110943346B CN201911084516.8A CN201911084516A CN110943346B CN 110943346 B CN110943346 B CN 110943346B CN 201911084516 A CN201911084516 A CN 201911084516A CN 110943346 B CN110943346 B CN 110943346B
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China
Prior art keywords
fork
shaped
guide plate
forked
handle
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CN201911084516.8A
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Chinese (zh)
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CN110943346A (en
Inventor
郭泰佑
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Qisda Optronics Suzhou Co Ltd
Qisda Corp
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Qisda Optronics Suzhou Co Ltd
Qisda Corp
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Priority to CN201911084516.8A priority Critical patent/CN110943346B/en
Publication of CN110943346A publication Critical patent/CN110943346A/en
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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
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/62933—Comprising exclusively pivoting lever
    • H01R13/62938—Pivoting lever comprising own camming means
    • 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
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H01R13/112—Resilient sockets forked sockets having two legs
    • 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
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention discloses a socket structure, a power connector and a plug connection method of the power connector. The fork-shaped electrodes are arranged in the base at intervals; the guide plate is movable, and the fork-shaped part of each fork-shaped electrode penetrates through the corresponding opening of the guide plate; the handle is provided with an operation end and a rotatable cam end; the guide plate is clamped between the cam end of the handle and the elastic element. When the handle is not subjected to external force, the elastic element pushes the guide plate towards the preset direction, the opening of the guide plate limits the position of the corresponding fork-shaped electrode, and the fork-shaped part is in a pressing and clamping state; when the operating end of the handle is rotated by external force, the cam end of the handle pushes against the guide plate in the reverse direction of the preset direction, the opening of the guide plate is separated from the fork-shaped part of the corresponding fork-shaped electrode, and the fork-shaped part of each fork-shaped electrode returns to the developing state. The invention can solve the problems of difficult plugging and unplugging and easy damage of the socket in the prior art.

Description

Socket structure, power connector and plug connection method of power connector
Technical Field
The invention relates to the field of power connectors, in particular to a socket structure, a power connector and a plug connection method of the power connector.
Background
The socket is one of the most common devices for connecting electrical equipment and a power supply, and the use of the socket is very common, for example, the C13 connector is commonly used as a power supply connector for various household appliances, and the design thereof utilizes the shape interference and the clip clamping to achieve the stable connection, and the fixed connection is a good design, but the disadvantage is that the force required for inserting and removing is large, usually, one hand is used for fixing the device and the other hand is used for inserting and removing the connector, but a lot of labor and time are wasted when inserting and removing the connector in a factory production process. In addition, when the plug is pulled out, the plug is frequently required to be shaken to be conveniently pulled out, and the shaking causes damage to the socket, so that the service life of the socket is shortened.
Disclosure of Invention
Therefore, an objective of the present invention is to provide a socket structure, a power connector and a plug connection method of the power connector, so as to solve the problems of difficulty in plugging and unplugging and easy damage of the socket in the prior art.
To achieve the above object, the present invention provides a socket structure, comprising: a base; three forked electrodes, each forked electrode is arranged in the base at intervals; the guide plate is movably arranged in the base, three openings corresponding to the three forked electrodes are formed in the guide plate, and the forked parts of the forked electrodes penetrate through the corresponding openings of the guide plate respectively; the handle is provided with a cam end and an operating end, the cam end is connected with the base in a shaft mode, and the operating end is exposed out of the base; the elastic element is arranged in the base and is abutted between the bottom of the base and the guide plate, and the guide plate is clamped between the cam end of the handle and the elastic element; when the operating end of the handle is not subjected to external force, the elastic element pushes the guide plate towards the preset direction due to the elastic force, the opening of the guide plate limits the fork-shaped part of the corresponding fork-shaped electrode, and the fork-shaped part of each fork-shaped electrode is in a pressing and clamping state; when the operating end of the handle is rotated by an external force, the cam end of the handle pushes the guide plate in the reverse direction of the preset direction, the opening of the guide plate is separated from the fork-shaped part of the corresponding fork-shaped electrode, and the fork-shaped part of each fork-shaped electrode returns to the open state.
As an alternative solution, the elastic element is a return spring.
As an alternative solution, the elastic element includes a first bullet-shaped element and a second bullet-shaped element, the three forked electrodes include a first forked electrode, a second forked electrode and a third forked electrode arranged in sequence, the first bullet-shaped element is located between the first forked electrode and the second forked electrode, and the second bullet-shaped element is located between the second forked electrode and the third forked electrode.
As an optional technical solution, each forked electrode is a Y-shaped spring structure.
As an optional technical scheme, the periphery of the guide plate is provided with a chamfer structure; or the guide plate is in a circular or arc structure.
The invention also provides a power connector which comprises a socket structure and a plug structure. The socket structure includes: a base; three forked electrodes, each forked electrode is arranged in the base at intervals; the guide plate is movably arranged in the base, three openings corresponding to the three forked electrodes are formed in the guide plate, and the forked parts of the forked electrodes penetrate through the corresponding openings of the guide plate respectively; the handle is provided with a cam end and an operating end, the cam end is connected with the base in a shaft mode, and the operating end is exposed out of the base; and the elastic element is arranged in the base and is abutted between the bottom of the base and the guide plate, and the guide plate is clamped between the cam end of the handle and the elastic element. The plug structure has a plug contact end for co-operation with the forked electrodes of the socket structure. When the operating end of the handle is not subjected to external force, the elastic element pushes the guide plate towards the preset direction due to the elastic force, the opening of the guide plate limits the fork-shaped part of the corresponding fork-shaped electrode, and the fork-shaped part of each fork-shaped electrode is in a pressing and clamping state; when the operating end of the handle is rotated by an external force, the cam end of the handle pushes the guide plate in the reverse direction of the preset direction, the opening of the guide plate is separated from the fork-shaped part of the corresponding fork-shaped electrode, and the fork-shaped part of each fork-shaped electrode returns to the open state.
As an alternative solution, the elastic element is a return spring.
As an alternative solution, the elastic element includes a first bullet-shaped element and a second bullet-shaped element, the three forked electrodes include a first forked electrode, a second forked electrode and a third forked electrode arranged in sequence, the first bullet-shaped element is located between the first forked electrode and the second forked electrode, and the second bullet-shaped element is located between the second forked electrode and the third forked electrode.
As an optional technical solution, each forked electrode is a Y-shaped spring structure.
The invention also provides a plug connection method of the power connector, which comprises the following steps: providing external force to the operating end of the handle to change the forked parts of the forked electrodes from the developing state to the clamping state; advancing the plug structure into the receptacle structure; releasing the external force, and enabling the fork-shaped electrode of the socket structure to be in contact with the plug contact end of the plug structure to establish electric connection; providing external force to the operating end of the handle to change the forked parts of the forked electrodes from the clamping state to the developing state; and pulling the plug structure out of the socket structure.
Compared with the prior art, the socket structure has the advantages that the fork-shaped electrodes are switched to be in the pressing and clamping or developing state by operating the handle of the socket structure, when the fork-shaped electrodes are in the developing state, the fork-shaped electrodes are not in contact with the corresponding openings, the fork-shaped electrodes are easy to insert and pull out under the condition of no clamping force, the handle is released after the fork-shaped electrodes are inserted, and the fork-shaped electrodes clamp the plug contact end of the plug structure to realize electric connection. Therefore, the invention can realize quick and reliable plug connection with little force and time, does not influence the contact performance between the plug and the socket of the power connector, and prolongs the service life of the socket.
The advantages and spirit of the present invention can be further understood by the following detailed description of the invention and the accompanying drawings.
Drawings
FIG. 1 is a front view of a receptacle structure according to the present invention;
FIG. 2 is a cross-sectional view of the socket structure taken along the plane D1D3 as the handle of FIG. 1 is depressed;
FIG. 3 is a cross-sectional view of the socket structure taken along the plane D1D2 as the handle of FIG. 1 is depressed;
FIGS. 4A and 4B are schematic views showing a forked electrode in a press-clamped state and an expanded state, respectively;
FIGS. 5A and 5B are an exploded view and an assembled view of a handle, a guide plate and a resilient member, respectively, according to the present invention;
FIG. 6 is a schematic view of a forked electrode in combination with a handle, a guide plate and a resilient member in accordance with the present invention;
fig. 7 is a flowchart illustrating a plug connection method of the power connector according to the present invention.
Detailed Description
Referring to fig. 1-3, fig. 1 is a front view of a receptacle structure according to the present invention; FIG. 2 is a cross-sectional view of the socket structure taken along the plane D1D3 as the handle of FIG. 1 is depressed; figure 3 is a cross-sectional view of the socket structure taken along the plane D1D2 as the handle of figure 1 is depressed. The invention provides a socket structure 1, wherein the socket structure 1 comprises a base 10, three forked electrodes, a guide plate 11, a handle 12 and an elastic element, the three forked electrodes are a first forked motor 21, a second forked electrode 22 and a third forked electrode 23, and the forked electrodes are Y-shaped shrapnel structures. One end of the socket structure 1 is used for plugging or matching with the plug structure, and the other end is a connecting wire 20. Moreover, the forked electrodes are spaced apart from each other in the base 10, and the positions of the electrodes are set according to the national standard of power connectors. The guide plate 11 is movably disposed in the base 10, and the guide plate 11 has three openings 31, 32, 33 corresponding to the three forked electrodes, respectively, and the forked portion of each forked electrode is inserted into the corresponding opening of the guide plate 2. Specifically, for example, a first forked electrode is inserted into the opening 31, a second forked electrode is inserted into the opening 32, and a third forked electrode is inserted into the opening 33.
In addition, the handle 12 has a cam end 121 and an operation end 122, the cam end 121 is coupled to the base 10, and the operation end 122 is exposed out of the base 10. For example, the cam end 121 of the handle 12 is rotatably connected to the base 10 through the rotating shaft 13, the elastic element is disposed in the base 10 and abuts between the bottom of the base 10 and the guide plate 11, and the guide plate 11 is interposed between the cam end 121 of the handle 12 and the elastic element. The elastic element is a structure such as a return spring or a spring plate and the like, and provides return elastic force.
Moreover, since there are three forked electrodes in the present invention, in order to ensure the force uniformity of the guide plate, it is preferable that the elastic element includes a first forked electrode 41 and a second forked electrode 42, and the first forked electrode 21, the second forked electrode 22 and the third forked electrode 23 are sequentially disposed in the base, so that the first forked electrode 41 is located between the first forked electrode 21 and the second forked electrode 22, and the second forked electrode 42 is located between the second forked electrode 22 and the third forked electrode 23.
With continued reference to fig. 4A-6, fig. 4A and 4B are schematic views of the forked electrodes in the clamping state and the unfolding state, respectively; FIGS. 5A and 5B are an exploded view and an assembled view of a handle, a guide plate and a resilient member, respectively, according to the present invention; fig. 6 is a schematic view showing a fork motor according to the present invention combined with a handle, a guide plate and an elastic member. When the operating end 122 of the handle 12 is not subjected to an external force, the elastic element pushes the guide plate 11 towards a predetermined direction due to the elastic force, the opening of the guide plate 11 limits the fork-shaped portion of the corresponding fork-shaped electrode, so that the fork-shaped portion of each fork-shaped electrode is in a pressing and clamping state; when the operation end 122 of the handle 12 is rotated by an external force, the cam end 121 of the handle 12 pushes the guide plate 11 in a direction opposite to the predetermined direction, and the opening of the guide plate 11 is separated from the fork-shaped portion of the corresponding fork-shaped electrode, so that the fork-shaped portion of each fork-shaped electrode is restored to the spread state. In the present invention, the predetermined direction is a direction in which the elastic member faces the guide plate 11.
Moreover, preferably, the periphery of the guide plate is provided with a chamfer structure; or the guide plate is in a circular or arc structure, and the arrangement of the structure can prevent the guide plate from touching or scratching other parts in the socket structure in the moving process.
In addition, the invention also provides a power connector, which comprises a plug structure and the socket structure 1, wherein the plug structure is provided with a plug contact end which is cooperated with the fork-shaped electrode of the socket structure. When the operating end 122 of the handle 12 is not subjected to an external force, the elastic element pushes the guide plate 11 towards a predetermined direction due to the elastic force, the opening of the guide plate 11 limits the fork-shaped portion of the corresponding fork-shaped electrode, so that the fork-shaped portion of each fork-shaped electrode is in a pressing and clamping state; when the operation end 122 of the handle 12 is rotated by an external force, the cam end 121 of the handle 12 pushes the guide plate 11 in a direction opposite to the predetermined direction, and the opening of the guide plate 11 is separated from the fork-shaped portion of the corresponding fork-shaped electrode, so that the fork-shaped portion of each fork-shaped electrode is restored to the spread state. In the present invention, the predetermined direction is a direction in which the elastic member faces the guide plate 11. That is, an external force is applied to the operation end 122 of the handle 12, the operation end 122 of the handle 12 is rotated by the external force, the cam end 121 of the handle 12 pushes the guide plate 11 in the opposite direction of the predetermined direction, the opening of the guide plate 11 is separated from the fork-shaped portion of the corresponding fork-shaped electrode, so that the fork-shaped portion of each fork-shaped electrode is in the open state, i.e., the corresponding fork-shaped portion of the fork-shaped electrode is not in contact with the opening, and the plug structure can be easily inserted into the socket structure without resistance. Releasing the external force, the operation end 122 of the handle 12 will rotate and return to the natural state due to the disappearance of the external force, at this time, the elastic element will push the guide plate 11 towards the predetermined direction due to the elastic force, the opening of the guide plate 11 is limited to correspond to the forked portion of the forked electrode, so that the forked portion of each forked electrode is in a pressing and clamping state, and at this time, the forked electrode of the socket structure 1 contacts with the plug contact end of the plug structure to establish the electrical connection. Similarly, when the plug structure needs to be removed, only external force needs to be provided for the operation end 122 of the handle 12, the operation end 122 of the handle 12 can rotate due to the external force, at this time, the cam end 121 of the handle 12 pushes the guide plate 11 in the reverse direction of the predetermined direction, the opening of the guide plate 11 is separated from the fork-shaped part corresponding to the fork-shaped electrode, so that the fork-shaped part of each fork-shaped electrode is in a developing state, namely, the fork-shaped part of the corresponding fork-shaped electrode is not in contact with the opening at this time, and then the plug structure can be easily removed without resistance.
Referring to fig. 7, fig. 7 is a flowchart illustrating a plug connection method of a power connector according to the present invention. The invention also provides a plug connection method of the power connector, which comprises the following steps:
step S1, providing external force to the operation end of the handle to make the fork-shaped part of each fork-shaped electrode change from the developing state to the clamping state;
step S2, advancing the plug structure into the receptacle structure without resistance;
step S3, releasing the external force, and making the fork-shaped electrode of the socket structure contact with the plug contact end of the plug structure to establish electrical connection;
step S4, providing external force to the operation end of the handle to make the forked part of each forked electrode change from the clamping state to the unfolding state; and
in step S5, the plug structure is pulled out of the receptacle structure without resistance.
In summary, the present invention switches the forked electrodes to the pressing or expanding state by operating the handle of the socket structure, when the forked electrodes are in the expanding state, the forked electrodes are not in contact with the corresponding openings, and the insertion and the extraction are easy without clamping force, and after the insertion, the handle is released, the forked electrodes clamp the plug contact end of the plug structure, thereby achieving the electrical connection. Therefore, the invention can realize quick and reliable plug connection with little force and time, does not influence the contact performance between the plug and the socket of the power connector, and prolongs the service life of the socket.
The above detailed description of the preferred embodiments is intended to more clearly illustrate the features and spirit of the present invention, and is not intended to limit the scope of the present invention by the preferred embodiments disclosed above. On the contrary, it is intended to cover various modifications and equivalent arrangements included within the scope of the appended claims. The scope of the claims to be accorded the invention is therefore to be accorded the broadest interpretation so as to encompass all such modifications and equivalent arrangements as is known in the art.

Claims (8)

1. A socket structure, comprising:
a base;
three forked electrodes, each forked electrode is arranged in the base at intervals;
the guide plate is movably arranged in the base, three openings which correspond to the three forked electrodes one by one are formed in the guide plate, and the forked parts of the forked electrodes are respectively arranged in the corresponding openings of the guide plate in a penetrating manner;
the handle is provided with a cam end and an operating end, the cam end is connected with the base in a shaft mode, and the operating end is exposed out of the base; and
the elastic element is arranged in the base, wherein the guide plate is clamped between the cam end of the handle and the elastic element, the elastic element further comprises a first bullet-shaped element and a second bullet-shaped element, the three fork-shaped electrodes comprise a first fork-shaped electrode, a second fork-shaped electrode and a third fork-shaped electrode which are sequentially arranged, the first bullet-shaped element is positioned between the first fork-shaped electrode and the second fork-shaped electrode, and the second bullet-shaped element is positioned between the second fork-shaped electrode and the third fork-shaped electrode;
when the operating end of the handle is not subjected to external force, the elastic element pushes the guide plate towards the preset direction due to the elastic force, the opening of the guide plate limits the fork-shaped part of the corresponding fork-shaped electrode, and the fork-shaped part of each fork-shaped electrode is in a pressing and clamping state; when the operating end of the handle is rotated by an external force, the cam end of the handle pushes the guide plate in the reverse direction of the preset direction, the opening of the guide plate is separated from the fork-shaped part of the corresponding fork-shaped electrode, and the fork-shaped part of each fork-shaped electrode returns to the open state.
2. The socket structure of claim 1, wherein the resilient member is a return spring.
3. The socket structure of claim 1 wherein each forked electrode is a Y-shaped leaf spring structure.
4. The socket structure of claim 1 wherein the periphery of the guide plate has a chamfered configuration; or the guide plate is in a circular or arc structure.
5. A power connector, comprising:
a socket structure, the socket structure comprising:
a base;
three forked electrodes, each forked electrode is arranged in the base at intervals;
the guide plate is movably arranged in the base, three openings which correspond to the three forked electrodes one by one are formed in the guide plate, and the forked parts of the forked electrodes are respectively arranged in the corresponding openings of the guide plate in a penetrating manner;
the handle is provided with a cam end and an operating end, the cam end is connected with the base in a shaft mode, and the operating end is exposed out of the base; and
the elastic element is arranged in the base and abutted between the bottom of the base and the guide plate, the guide plate is clamped between the cam end of the handle and the elastic element, the elastic element further comprises a first bullet-shaped element and a second bullet-shaped element, the three fork-shaped electrodes comprise a first fork-shaped electrode, a second fork-shaped electrode and a third fork-shaped electrode which are sequentially arranged, the first bullet-shaped element is positioned between the first fork-shaped electrode and the second fork-shaped electrode, and the second bullet-shaped element is positioned between the second fork-shaped electrode and the third fork-shaped electrode; and
a plug structure having a plug contact end for coaction with the forked electrode of the socket structure;
when the operating end of the handle is not subjected to external force, the elastic element pushes the guide plate towards the preset direction due to the elastic force, the opening of the guide plate limits the fork-shaped part of the corresponding fork-shaped electrode, and the fork-shaped part of each fork-shaped electrode is in a pressing and clamping state; when the operating end of the handle is rotated by an external force, the cam end of the handle pushes the guide plate in the reverse direction of the preset direction, the opening of the guide plate is separated from the fork-shaped part of the corresponding fork-shaped electrode, and the fork-shaped part of each fork-shaped electrode returns to the open state.
6. The power connector of claim 5, wherein the resilient member is a return spring.
7. The power connector of claim 5, wherein each forked electrode is a Y-shaped spring structure.
8. A method for plugging and unplugging a power connector according to any of claims 5-7, comprising the steps of:
providing external force to the operating end of the handle to change the forked parts of the forked electrodes from the developing state to the clamping state;
advancing the plug structure into the receptacle structure;
releasing the external force, and enabling the fork-shaped electrode of the socket structure to be in contact with the plug contact end of the plug structure to establish electric connection;
providing external force to the operating end of the handle to change the forked parts of the forked electrodes from the clamping state to the developing state; and
and pulling the plug structure out of the socket structure.
CN201911084516.8A 2019-11-08 2019-11-08 Socket structure, power connector and plug connection method of power connector Active CN110943346B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911084516.8A CN110943346B (en) 2019-11-08 2019-11-08 Socket structure, power connector and plug connection method of power connector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911084516.8A CN110943346B (en) 2019-11-08 2019-11-08 Socket structure, power connector and plug connection method of power connector

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Publication Number Publication Date
CN110943346A CN110943346A (en) 2020-03-31
CN110943346B true CN110943346B (en) 2021-11-19

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4412037A1 (en) * 1994-04-10 1995-10-12 Grunwald Projektoren Ag Circuit-breaker for electric HV line
TWM287000U (en) * 2005-04-06 2006-02-01 Jia-Jen Wu Socket structure for unplugging easily and falling-off hardly after being plugged
CN101834375A (en) * 2010-05-07 2010-09-15 游维 Overload protective socket
CN202474355U (en) * 2012-03-16 2012-10-03 张献伟 One-hand plug socket
CN105356141B (en) * 2015-11-06 2018-01-23 苏州璟晖电子科技有限公司 A kind of arrangements of electric connection and its plug, socket, wiring board
CN205583272U (en) * 2016-04-19 2016-09-14 董开郑 Safety socket
CN110783768B (en) * 2018-12-30 2020-11-06 乐清市然景电气有限公司 Data interface socket for color ultrasonic machine
CN110190465A (en) * 2019-07-03 2019-08-30 贵州大学 A kind of socket fixed with quick spring plug

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