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 along the Z-axis direction, the plugging end is used for being connected with a plug, and the plugging end comprises a first shell, a second shell, a third shell and a plugging terminal; a first through hole is formed in the first shell in the Z-axis direction, and the second shell is arranged in the first through hole in a floating mode. The second shell and the third shell are arranged in the Z-axis direction and detachably connected, the second shell comprises a second through hole, and the third shell comprises a third through hole; the plug terminal is arranged in the second through hole and the third through hole, the second shell is provided with a first limiting structure, the third shell is provided with a second limiting structure, and the first limiting structure and the second limiting structure fix the plug terminal. The plug terminal is limited and fixed on the Z axis through the second shell and the third shell, so that the plug terminal can float along with the second shell so as to be electrically connected with the plug, the overall structure is simple, and assembly and disassembly are convenient.

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] The existing socket has a complex structure and is not easy to assemble and repair. Utility Model Content

[0005] In view of the problem that the socket in the prior art has a complex structure and is inconvenient to assemble and maintain, the utility model provides a socket, which includes a plug-in end and a tail end along the Z-axis direction, the plug-in end is used to connect with a plug, and includes a first shell, a second shell, a third shell and a plug-in terminal; a first through hole is arranged in the first shell along the Z-axis direction, and the second shell is floatingly arranged in the first through hole; the second shell and the third shell are arranged in the Z-axis direction and are detachably connected, the second shell includes a second through hole, and the third shell includes a third through hole; the plug-in terminal is arranged in the second through hole and the third through hole, the second shell is provided with a first limiting structure, the third shell is provided with a second limiting structure, and the first limiting structure and the second limiting structure fix the plug-in terminal.

[0006] The plug-in terminal is fixed at the upper limit position of the Z axis by the second shell and the third shell, so the plug-in terminal can float with the second shell to be electrically connected to the plug, and the overall structure is simple. In addition, if disassembly or maintenance is required, the connection between the third shell and the second shell is released, and the third shell and the plug-in terminal can be disassembled in turn.

[0007] In an optional technical solution of the present utility model, the socket further comprises a first spring and a second spring connecting the first shell and the second shell, the first spring extending along the Z-axis direction; the second spring extending in the XY plane.

[0008] In an optional technical solution of the present utility model, the above-mentioned socket also includes a first seal located at the above-mentioned plug-in end and a second seal located at the above-mentioned tail end, and the above-mentioned first seal and the above-mentioned second seal are both connected to the above-mentioned first shell and the above-mentioned second shell, and are used to seal the gap between the above-mentioned first shell and the above-mentioned second shell.

[0009] In an optional technical solution of the present utility model, the first sealing member includes a middle portion that is not connected to the first shell or the second shell, and the middle portion includes at least two bending portions.

[0010] In an optional technical solution of the present utility model, the first end of the second sealing member is bonded to the first shell, and the second end of the second sealing member is sandwiched between the second shell and the third shell.

[0011] In an optional technical solution of the present utility model, a first groove is provided on the second shell, a first protrusion is provided on the second sealing member, and the first protrusion is provided in the first groove.

[0012] In an optional technical solution of the present utility model, a second groove is provided on the second shell, the second groove includes a first side wall extending along the Z-axis and a second side wall extending horizontally, the first seal is connected to the second groove, and the second side wall is used to limit the first seal in the Z-axis direction.

[0013] In an optional technical solution of the utility model, the above-mentioned first limiting structure includes a first boss extending along the Z-axis, the above-mentioned plug-in terminal is provided with a horizontally extending second boss and a third boss extending along the Z-axis, and the above-mentioned third shell includes a fourth boss extending along the Z-axis; the above-mentioned first boss and the above-mentioned second boss are clamped together; the above-mentioned third boss and the above-mentioned fourth boss are clamped together.

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

[0015] Figure 1 is a cross-sectional view of the socket;

[0016] Figure 2 is a three-dimensional diagram of a socket;

[0017] Figure 3 is a top view of the socket;

[0018] Figure 4 is an enlarged view of the connection portion between the second sealing member and the second housing;

[0019] Figure 5 It is an enlarged view of the connection part between the first sealing member and the second housing;

[0020] Figure 6 It is an enlarged view of the second housing and the third housing limiting the plug-in terminal;

[0021] Reference numerals:

[0022] Plug terminal 1;

[0023] tail end 2;

[0024] A first shell 3 and a first through hole;

[0025] The second housing 4, the second through hole 4.1, the first limiting structure 4.2, the first groove 4.3, the second groove 4.4, and the second side wall 4.41;

[0026] A third housing 5, a third through hole 5.1, and a second limiting structure 5.2;

[0027] Plug terminal 6, second boss 6.1;

[0028] First spring 7;

[0029] First sealing member 8, bending portion 8.1;

[0030] A second sealing member 9, a first protrusion 9.1;

[0031] The third seal 10 . DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] like Figure 1-3 As shown, the utility model provides a socket, which includes a plug-in end 1 and a tail end 2 along the Z axis, the plug-in end 1 is used to connect with the plug, and the tail end 2 is used to lead out and connect to the car. The socket includes a first shell 3, a second shell 4, a third shell 5 and a plug-in terminal 6. A first through hole is arranged in the first shell 3 along the Z axis direction, and the second shell 4 is floatingly arranged in the first through hole. The second shell 4 and the third shell 5 are arranged along the Z axis direction and are detachably connected. The second shell 4 includes a second through hole 4.1, the third shell 5 includes a third through hole 5.1, and the plug-in terminal 6 is arranged in the second through hole 4.1 and the third through hole 5.1. The second shell 4 is provided with a first limiting structure, and the third shell 5 is provided with a second limiting structure. The first limiting structure and the second limiting structure fix the plug-in terminal 6. The first limiting structure 4.2 and the second limiting structure 5.2 jointly limit the movement of the plug-in terminal 6 in the vertical and horizontal directions, so the plug-in terminal 6 can float with the second shell 4 to achieve electrical connection with the plug. The overall structure is simple and detachable, which is convenient for maintenance. In the present invention, the second housing 4 and the third housing 5 are connected by bolts, and of course they can also be connected by other detachable ways.

[0037] In an optional embodiment of the present utility model, as Figure 1 As shown, the socket further includes a first spring 7 and a second spring (not shown) connecting the first shell 3 and the second shell 4, that is, the two ends of the first spring 7 are respectively connected to the first shell 3 and the second shell 4, and the two ends of the second spring are also respectively connected to the first shell 3 and the second shell 4. The first spring 7 extends along the Z-axis direction, so the second shell 4 can drive the plug-in terminal 6 to float along the Z-axis direction. The second spring extends in the XY plane, so the second shell 4 can drive the plug-in terminal 6 to float in the X and Y axis directions at the same time. Of course, the second spring and the shell can also expand and contract in the XYZ direction at the same time.

[0038] In an optional embodiment of the present utility model, as Figure 1As shown, the socket further includes a first seal 8 located at the plug end 1 and a second seal 9 located at the tail end 2. The first seal 8 and the second seal 9 are both connected to the first shell 3 and the second shell 5, and are used to seal the gap between the first shell 3 and the second shell 4. This can prevent water vapor and dust from entering the interior of the socket. In addition, the first seal 8 and the second seal 9 themselves have a certain elasticity, so the second shell 4 can also be allowed to float within a certain range.

[0039] In an optional embodiment of the present utility model, as Figure 1 As shown, the first end of the second seal 9 is bonded to the first shell 3, and specifically, injection molding bonding can be selected. The second end of the second seal 9 is clamped between the second shell 4 and the third shell 5. That is, the second shell 4 and the third shell 5 limit the end of the second seal while limiting the plug-in terminal 6, thereby improving the sealing reliability of the second seal 9. Injection molding bonding is stronger than gluing, but in actual operation, the injection molding tooling may be difficult to perform the injection molding process due to space limitations. In this embodiment, the first end of the second seal 9 is injection-bonded to the first shell 3, and the second end is limited and fixed instead of injection molding bonding, which can also ensure the sealing reliability.

[0040] In an optional embodiment of the present utility model, as Figure 4 As shown, the second housing 4 is provided with a first groove 4.3, and the second sealing member 9 is provided with a first protrusion 9.1, which is arranged in the first groove 4.3, further improving the sealing reliability of the second sealing member. Specifically, in this embodiment, the first groove 4.3 opens toward the third housing 5.

[0041] In an optional embodiment of the present utility model, as Figure 1 As shown, one end of the first seal 8 is connected to the mounting surface of the first shell 3, and specifically, an injection molding connection or an adhesive connection can be selected. The mounting surface of the first shell 3 is used for the surface of the related tooling to fix the socket when connected to the plug, and the related tooling can compress the first seal 8. The other end of the first seal 8 is connected to the second shell 4, and specifically, an injection molding connection can be selected. The second shell 4 includes a cylindrical wall, and a second groove 4.4 is provided on the cylindrical wall. The second groove 4.4 includes a first side wall extending in the Z-axis direction and a second side wall 4.41 extending in the horizontal direction. The first seal 8 can be connected to the first groove 4.4 by injection molding, so that the shell improves the connection strength between the first seal 8 and the second shell 4, and the second side wall 4.41 can also limit the first seal 8 in the Z-axis direction.

[0042] In an optional embodiment of the present utility model, as Figure 1As shown, the first sealing member 8 includes a middle portion that is not connected to the first shell 3 and the second shell 4, and the middle portion includes at least two bent portions 8.1, and the bent portions 8.1 are U-shaped or V-shaped structures, so that the first sealing member 8 can have both sealing and floating functions. In this embodiment, the first sealing member 8 includes two continuous bent portions of the same size, and of course, it can also include bent portions of different sizes, and multiple bent portions can also be arranged at intervals.

[0043] In an optional embodiment of the present utility model, as Figure 1 and Figure 6 As shown, the first limiting structure 4.2 includes a first boss extending along the Z axis, the plug-in terminal 6 is provided with a second boss 6.1 extending horizontally and a third boss 6.2 extending along the Z axis, and the second limiting structure 5.2 includes a fourth boss extending along the Z axis. The first boss and the second boss 6.1 are clamped; the third boss 6.2 and the fourth boss are clamped. A third sealing member 10 is also provided between the plug-in terminal 6 and the second housing 4.

[0044] In an optional embodiment of the utility model, the plug terminal 6 is a socket, and a conductive structure is arranged in the socket. When the plug and the socket are connected, electrical connection can be achieved through the conductive structure. Of course, the plug terminal 6 can also be a conductive pin. The socket can be set at the battery pack end, or at the vehicle end or the battery swap station end, depending on actual needs, and is not limited here.

[0045] The utility model also provides an electric connector, which comprises the socket and the plug.

[0046] The utility model also provides a battery pack, which comprises the above socket.

[0047] The utility model also provides an electric device, including the above socket. That is, one of the battery pack and the electric device is provided with the above socket, and the other is provided with a plug that docks with the above socket. The provision of the socket facilitates assembly and disassembly. The electric device can be, but is not limited to, an electric vehicle.

[0048] 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 along the Z-axis direction, wherein the plug end is used to connect with a plug, characterized in that: It includes a first housing, a second housing, a third housing and a plug-in terminal; A first through hole is arranged in the first shell along the Z-axis direction, and the second shell is floatingly arranged in the first through hole; The second shell and the third shell are arranged along the Z-axis direction and are detachably connected. The second shell includes a second through hole, and the third shell includes a third through hole. The plug-in terminal is arranged in the second through hole and the third through hole. The second shell is provided with a first limiting structure, and the third shell is provided with a second limiting structure. The first limiting structure and the second limiting structure fix the plug-in terminal.

2. The socket according to claim 1, characterized in that The socket further comprises a first spring and a second spring connecting the first shell and the second shell, wherein the first spring extends along the Z-axis direction; The second spring extends in the XY plane.

3. The socket according to claim 1, characterized in that: The socket further includes a first seal located at the plug-in end and a second seal located at the tail end, wherein the first seal and the second seal are both connected to the first shell and the second shell to seal a gap between the first shell and the second shell.

4. The socket according to claim 3, characterized in that The first end of the second sealing member is bonded to the first shell, and the second end of the second sealing member is sandwiched between the second shell and the third shell.

5. The socket according to claim 3, characterized in that: The second shell is provided with a first groove, the second sealing member is provided with a first protrusion, and the first protrusion is arranged in the first groove.

6. The socket according to claim 3, characterized in that: The second shell is provided with a second groove, the second groove includes a first side wall extending along the Z-axis direction and a second side wall extending along the horizontal direction, the first seal is connected to the second groove, and the second side wall is used to limit the first seal in the Z-axis direction.

7. The socket according to claim 3, characterized in that: The first sealing member includes a middle portion which is not connected to the first shell or the second shell, and the middle portion includes at least two bending portions.

8. The socket according to claim 1, characterized in that The first limiting structure includes a first boss extending along the Z axis, the plug-in terminal is provided with a second boss extending horizontally and a third boss extending along the Z axis, and the second limiting structure includes a fourth boss extending along the Z axis; The first boss is clamped with the second boss; the third boss is clamped with the fourth boss.

9. An electrical connector, characterized in that: The invention comprises a plug and a socket as claimed in any one of claims 1 to 8.

10. A battery pack, characterized in that: Comprising the socket as claimed in any one of claims 1 to 8.

11. An electrical device, characterized in that: Comprising the socket as claimed in any one of claims 1 to 8.

Images