Socket, electric connector, battery pack and electric device

Abstract

The utility model provides a socket, an electric connector, a battery pack and an electric device, the socket comprises a plugging end and a tail end, the direction from the plugging end to the tail end is a first direction, and the plugging end is used for being connected with a plug. The plug comprises a high-voltage pin and a low-voltage pin. The socket comprises a first shell, a high-voltage jack assembly and a low-voltage jack assembly, wherein the high-voltage jack assembly and the low-voltage jack assembly are arranged on the first shell. The high-voltage jack assembly is used for being electrically connected with a high-voltage pin, and the low-voltage jack assembly is used for being electrically connected with a low-voltage pin; the socket further comprises a wire harness which is electrically connected with the low-voltage jack assembly. The socket further comprises a first sealing gasket and a first cover body, the first cover body is arranged on the first sealing gasket and used for pressing the first sealing gasket, a first through hole is formed in the first sealing gasket, a second through hole is formed in the first cover body, and the wire harness sequentially penetrates through the first through hole and the second through hole. The wire harness is limited by the wall of the second through hole and does not greatly deflect, so that effective sealing between the wire harness and the first sealing gasket can be ensured.

Description

Technical Field

[0001] The utility model relates to the field of connectors, and specifically provides a socket, an electric connector, a battery pack and an electric device. Background Art

[0002] The electrical connector is a connecting bridge and a basic component necessary for a complete system. It plays a very important role in electrical equipment. As the application field of electrical equipment expands, the application environment of electrical connectors also expands, such as in new energy vehicles.

[0003] Electrical connectors are divided into plugs and sockets, which are plugged together to complete the electrical connection. Electrical connectors for new energy vehicles are divided into battery end (plug), vehicle end (socket) and station end, among which the station end is the interface for charging the battery pack in the battery swap station.

[0004] In addition to realizing the electrical transmission function through high-voltage terminals, plugs and sockets also need to realize signal detection and transmission functions through low-voltage terminals, such as transmitting battery pack temperature, battery pack internal temperature, battery pack discharge signal data, etc. However, in the prior art, the sealing failure problem around the wiring harness connected to the low-voltage terminal is relatively serious, which is a problem that needs to be solved urgently in the field. Utility Model Content

[0005] In view of the problem of failure of sealing around the wiring harness in the prior art, the utility model provides a socket, comprising a plug end and a tail end, the direction from the plug end to the tail end being a first direction, the plug end being used to connect with a plug, the plug comprising a high-voltage pin and a low-voltage pin, and characterized in that the socket comprises a first shell and a high-voltage jack assembly and a low-voltage jack assembly arranged on the first shell; the high-voltage jack assembly is used to be electrically connected to the high-voltage pin, and the low-voltage jack assembly is used to be electrically connected to the low-voltage pin; the socket also comprises a wiring harness, and the wiring harness is electrically connected to the low-voltage jack assembly; the socket also comprises a first sealing gasket and a first cover body, the first cover body is arranged on the first sealing gasket, and is used to press the first sealing gasket, the first sealing gasket is provided with a first through hole, the first cover body is provided with a second through hole, and the wiring harness passes through the first through hole and the second through hole in sequence.

[0006] In an optional technical solution of the present invention, the first sealing gasket is provided with a plurality of the first through holes, the first cover body is provided with a plurality of the second through holes, and the number of the first through holes is the same as the number of the second through holes.

[0007] In an optional technical solution of the present utility model, the first through hole and the second through hole are arranged correspondingly along the first direction. The axial distance D between the first through hole and the second through hole is ≤0.3 mm.

[0008] In an optional technical solution of the present utility model, the wall of the second through hole protrudes from the first cover body along the first direction.

[0009] In an optional technical solution of the present utility model, the wall height H of the second through hole satisfies: 3mm≤H≤5mm.

[0010] In an optional technical solution of the present invention, a first protrusion is provided on the inner wall of the first through hole.

[0011] In an optional technical solution of the present utility model, the socket further includes a second cover body, and the second cover body covers the first cover body.

[0012] In an optional technical solution of the present utility model, the socket further includes a second shell and a third shell, the second shell and the third shell are connected to and fix the low-voltage jack assembly, a receiving groove is provided on the side of the second shell facing away from the third shell, the first sealing gasket is provided in the receiving groove, and the first cover is fixed to the second shell.

[0013] In an optional technical solution of the utility model, the second housing is provided with an elastic first stopper, and the angle β between the first stopper and the first direction is an acute angle; the first housing is provided with a third through hole, and the wall of the third through hole includes a first wall extending along the first direction and a second wall extending along the second direction, and the first stopper is engaged with the second wall. The angle β satisfies: 12°≤β≤20°, and the length L of the second wall along the second direction satisfies: 0.7mm≤L≤1.5mm.

[0014] The utility model also provides an electric connector, comprising a plug and the above socket.

[0015] The utility model also provides a battery pack, comprising the above socket.

[0016] The utility model also provides an electrical device, comprising the socket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 and Figure 2 is a cross-sectional view of the socket;

[0018] Figure 3 for Figure 1 A partial enlarged view of

[0019] Figure 4 It is a three-dimensional diagram of the socket;

[0020] Figure 5 for Figure 4 Exploded diagram of

[0021] Figure 6 for Figure 5Exploded view of medium and low voltage quick-plug modules;

[0022] Reference numerals

[0023] Plug terminal 1;

[0024] tail end 2;

[0025] A first shell 3;

[0026] A third through hole 31;

[0027] Low voltage jack assembly 4;

[0028] Harness 5;

[0029] A first sealing gasket 6;

[0030] A first through hole 61;

[0031] A first protrusion 62;

[0032] Second protrusion 63

[0033] A first cover 7;

[0034] A second through hole 71;

[0035] A first clamping portion 72;

[0036] Low voltage quick-plug module 8;

[0037] A second housing 81;

[0038] Accommodating groove 811;

[0039] A second clamping portion 812;

[0040] A first stopper 813;

[0041] A third housing 82;

[0042] A second sealing gasket 83;

[0043] The second cover 9. DETAILED DESCRIPTION

[0044] The following describes the optional implementations of the present invention with reference to the accompanying drawings. It should be understood by those skilled in the art that these implementations are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0045] In the description of the present invention, it should be understood that the terms "distance", "width", "thickness", "up", "down", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0046] In the description of the present invention, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] like Figure 1 and Figure 2 As shown, the utility model provides a socket, the socket includes a plug end 1 and a tail end 2, the direction from the plug end 1 to the tail end 2 is a first direction, and the plug end 1 is used to connect with a plug. The plug (not shown) includes a high-voltage pin and a low-voltage pin, and the socket includes a first shell 3 and a high-voltage jack assembly (not shown) and a low-voltage jack assembly 4 arranged on the first shell 3; the high-voltage jack assembly is used to be electrically connected to the high-voltage pin, and the low-voltage jack assembly 4 is used to be electrically connected to the low-voltage pin; the socket also includes a wiring harness 5, and the wiring harness 5 is electrically connected to the low-voltage jack assembly 4; the socket also includes a first sealing pad 6 and a first cover 7, the first cover 7 is arranged on the first sealing pad 6, and is used to press the first sealing pad 6, the first sealing pad 6 is provided with a first through hole 61, the first cover 7 is provided with a second through hole 71, and the wiring harness 5 passes through the first through hole 61 and the second through hole 71 in sequence. The first sealing pad 6 achieves the effect of sealing by elastic deformation and blocking the gap. If the wiring harness 5 deflects greatly, there will be a gap between the wiring harness and the first sealing pad 6, and the sealing will fail. The wire harness 5 passes through the first through hole 61 of the first sealing gasket 6 and the second through hole 71 of the first cover 7 in sequence. The wire harness 5 is restricted by the wall of the second through hole 71 and will not deflect significantly, thereby ensuring effective sealing between the wire harness 5 and the first sealing gasket 6 .

[0049] In an optional embodiment of the present utility model, as Figure 1-3 As shown, the inner wall of the first through hole 61 is provided with a first protrusion 62. Specifically, along the first direction, a plurality of annular first protrusions 62 may be provided in the first through hole 61, and when the wire harness 5 passes through the first through hole 61, the wire harness 5 will squeeze the annular first protrusion 62, thereby forming a sealing structure in the first through hole 61 along the first direction, thereby improving the sealing ability.

[0050] In an optional embodiment of the present utility model, as Figure 1 As shown, the first sealing gasket 6 is provided with a plurality of first through holes 61 , and the first cover body 7 is provided with a plurality of second through holes 71 , and the number of the first through holes 61 and the number of the second through holes 71 are the same.

[0051] In an optional embodiment of the present utility model, as Figure 1 As shown, the first through hole 61 and the second through hole 71 are arranged correspondingly along the first direction. If the second through hole 71 and the first through hole 61 are arranged misaligned along the second direction, the wire harness 5 will be restricted by the wall of the second through hole 71 and will have a large swing in the first through hole 61. The wire harness 5 and the wall on one side of the first through hole 61 are squeezed, and a large gap is formed between the wall on the other side, affecting the sealing reliability. The first through hole 61 and the second through hole 71 are arranged one by one in the first direction, including coaxial arrangement. Of course, the axis of the second through hole 71 and the axis of the first through hole 61 can be slightly misaligned, as long as the distance D between the axes of the first through hole 61 and the second through hole 71 is less than or equal to 0.3 mm.

[0052] In an optional embodiment of the present utility model, as Figure 1 As shown, the wall of the second through hole 71 protrudes from the first cover body 7 along the first direction, and the wall height H of the second through hole 71 satisfies: 3mm≤H≤5mm. Setting H within the above numerical range can effectively avoid the sealing problem caused by the deflection of the wiring harness, and at the same time, the first cover body 7 will not occupy too much space in the first direction. Setting the wall of the second through hole 71 to protrude from the first cover body 7 along the first direction can meet the size requirements of H and avoid the thickness of the first cover body 7 being too large, which can reduce the weight of the first cover body 7 and save costs.

[0053] In an optional embodiment of the present utility model, as Figure 1 and Figure 4-6 As shown, the socket includes a first shell 3, a high-voltage jack assembly, a low-voltage quick-plug module 8 and a second cover 9. The first shell 3 is provided with a third through hole 31, and the low-voltage quick-plug module 8 is installed in the third through hole 31. The second cover 9 is fixed to the first shell 3 and covers the low-voltage quick-plug module, which can be used for dust prevention.

[0054] Specifically, the low-voltage quick-plug module 8 includes, in addition to the low-voltage jack assembly 4, a second shell 81 and a third shell 82, and the second shell 81 and the third shell 82 are connected and fixed to the low-voltage jack assembly 4. A receiving groove 811 is provided on the side of the second shell 81 away from the third shell 82, and the first sealing gasket 6 is provided in the receiving groove 811. A second protrusion 63 is provided on the outer periphery of the first sealing gasket 6, and the second protrusion 63 is deformed by being squeezed by the second shell 81, thereby playing a sealing role. A first clamping portion 72 is provided on the first cover body 7, and a second clamping portion 812 is provided on the second shell 81. The first cover body 7 and the second cover body 81 are fixed by connecting the first clamping portion 72 and the second clamping portion 812. A second sealing gasket 83 is also provided outside the second shell 81, and the second sealing gasket 83 is used to seal the connection between the low-voltage quick-plug module and the first shell 3.

[0055] In an optional embodiment of the present utility model, as Figure 5 and Figure 6 As shown, an elastic first stopper 813 is provided on the second housing 81, and the angle β between the first stopper 813 and the first direction is an acute angle. The wall of the third through hole 31 includes a first wall extending along the first direction and a second wall extending along the second direction, and the first stopper 813 is engaged with the second wall. Specifically, the angle β satisfies: 12°≤β≤20°, and the length L of the second wall along the second direction satisfies: 0.7mm≤L≤1.5mm. If the β value is too large, the low-voltage quick-plug module 8 is difficult to insert into the third through hole 31, and if forced to insert, the first stopper 813 may be damaged. If the β value is too small, it is difficult to form an effective limit effect with the second wall. Setting β within the above-mentioned numerical range can ensure that the first stopper 813 is deformed within an appropriate range and can effectively limit the low-voltage quick-plug module 8 from moving in the opposite direction of the first direction. Specifically, β can be 12°, 14°, 15°, 16°, 17°, 18°, 20°. If the value of L is too large, the space allowed for the low-voltage quick-insert module 8 to pass through will be smaller, and the first stopper 813 will need to be greatly deformed before it can be inserted, which may damage the first stopper 813. If the value of L is too small, the limiting effect between the first stopper 813 and the second wall will be unreliable. Limiting the value of L to the above numerical range allows the first stopper 813 to deform within an appropriate range while being reliably engaged with the second wall. Specifically, L can be 0.7mm, 0.9mm, 1.2mm, 1.3mm, or 1.5mm.

[0056] The utility model also provides an electric connector, comprising the above-mentioned plug and the above-mentioned socket.

[0057] The utility model also provides a battery pack, comprising the above socket.

[0058] The utility model also provides an electric device, comprising the above socket. That is, the above socket can be arranged on any one of the battery pack and the electric device, and a corresponding plug is arranged on the other. The electric device can be an electric vehicle, etc.

[0059] The utility model also provides an electric device. The electric device of the utility model includes a battery pack of an optional embodiment. By setting the battery pack, the force of the battery cells can be balanced, thereby increasing the cycle life of the battery pack. The electric device can be, but is not limited to, a mobile phone, a tablet, a laptop computer, an electric toy, an electric tool, a battery car, an electric car, a ship, a spacecraft, and the like. Among them, the electric toy can include a fixed or mobile electric toy, for example, a game console, an electric car toy, an electric ship toy, and an electric airplane toy, and the like, and the spacecraft can include an airplane, a rocket, a space shuttle, and a spacecraft, and the like.

[0060] So far, the technical solution of the utility model has been described in conjunction with the optional implementation modes shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific implementation modes. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.

Claims

1. A socket, comprising a plug end and a tail end, wherein the direction from the plug end to the tail end is a first direction, the plug end is used to connect with a plug, the plug comprises a high-voltage pin and a low-voltage pin, and is characterized in that: The socket comprises a first housing and a high-voltage jack assembly and a low-voltage jack assembly arranged on the first housing; The high-voltage jack assembly is used to be electrically connected to the high-voltage pin, and the low-voltage jack assembly is used to be electrically connected to the low-voltage pin; The socket also includes a wiring harness, which is electrically connected to the low-voltage jack assembly; the socket also includes a first sealing gasket and a first cover body, the first cover body is arranged on the first sealing gasket, and is used to compress the first sealing gasket, the first sealing gasket is provided with a first through hole, the first cover body is provided with a second through hole, and the wiring harness passes through the first through hole and the second through hole in sequence.

2. The socket according to claim 1, characterized in that The first sealing gasket is provided with a plurality of the first through holes, the first cover is provided with a plurality of the second through holes, and the number of the first through holes is the same as the number of the second through holes.

3. The socket according to claim 2, characterized in that: The first through holes and the second through holes are arranged correspondingly along a first direction.

4. The socket according to claim 2, characterized in that: The axial distance D between the first through hole and the second through hole is ≤0.3 mm.

5. The socket according to claim 1, characterized in that: A wall of the second through hole protrudes from the first cover body along a first direction.

6. The socket according to claim 1, characterized in that A wall height H of the second through hole satisfies: 3mm≤H≤5mm.

7. The socket according to claim 1, characterized in that The inner wall of the first through hole is provided with a first protrusion.

8. The socket according to claim 1, characterized in that The socket further includes a second cover body, wherein the second cover body covers the first cover body.

9. The socket according to claim 1, characterized in that: The socket also includes a second shell and a third shell, the second shell and the third shell are connected to and fix the low-voltage jack assembly, a receiving groove is provided on the side of the second shell facing away from the third shell, the first sealing gasket is provided in the receiving groove, and the first cover is fixed to the second shell.

10. The socket according to claim 9, characterized in that The second shell is provided with a first elastic limiter, and the angle β between the first limiter and the first direction is an acute angle; the first shell is provided with a third through hole, the wall of the third through hole includes a first wall extending along the first direction and a second wall extending along the second direction, and the first limiter is clamped with the second wall.

11. The socket according to claim 10, characterized in that The angle β satisfies: 12°≤β≤20°.

12. The socket according to claim 10, characterized in that A length L of the second wall along the second direction satisfies: 0.7 mm ≤ L ≤ 1.5 mm.

13. An electrical connector, characterized in that: The electrical connector comprises a plug and a socket as claimed in any one of claims 1 to 12.

14. A battery pack, characterized in that: The battery pack comprises the socket according to any one of claims 1 to 12.

15. An electrical device, characterized in that: The electrical device comprises a socket according to any one of claims 1 to 12.

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