Connector socket

Abstract

The utility model provides a connector socket. The connector socket comprises a socket body and a wiring harness. The seat body is provided with a plug-in through groove, the plug-in through groove is provided with a plug-in end and a connecting end which are separated from each other, and one end, close to the plug-in end, in the plug-in through groove is provided with an annular limiting structure. The wiring harness includes a wiring female terminal located at one end of the wiring harness. The power connection female terminal can extend from the connecting end to the plugging end through the annular limiting structure along the plugging through groove, the power connection female terminal is provided with an elastic buckle structure, and the elastic buckle structure can be elastically compressed when passing through the annular limiting structure and can reset and abut against the end face, close to the plugging end, of the annular limiting structure after leaving the annular limiting structure. Compared with an implementation mode that the female terminal can be axially limited only when the female terminal is firstly arranged on the tail seat and then the insulating body is arranged in the metal sleeve shell, the assembly process is simplified, and batch and automatic production of products is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of power distribution connection technology, specifically to connector sockets. Background Technology

[0002] Connectors and sockets are devices used to connect electrical equipment and transmit electrical energy. They are widely used in various industries. For example, in new energy vehicles, connectors and sockets are used to connect high-voltage components such as battery packs, drive motors, on-board chargers, and air conditioning compressors to realize the transmission and distribution of high-voltage electrical energy. In power systems, connectors and sockets are used to connect various high-voltage electrical equipment in power generation, transmission, transformation, and distribution.

[0003] Please see Figure 1 and Figure 2 The connector socket 1a includes a female terminal 11a, a metal housing 12a, and an insulating assembly 13a. In related technologies, the female terminal 11a is a cylindrical terminal, machined by a lathe. The insulating assembly 13a includes an insulating shell 131a and a tail cover 132a connected together, with at least a portion of the tail cover 132a installed within the insulating shell 131a. The insulating assembly 13a has an installation space 130a, within which a limiting structure 133a is formed at the junction of the insulating shell 131a and the tail cover 132a to restrict the axial movement of the female terminal 11a. When assembling this connector socket 1a, the female terminals 11a must first be installed one by one onto the tail cover 132a, and then the tail cover 132a must be installed into the insulating shell 131a so that the female terminal 11a is axially limited within the installation space 130a by the limiting structure 133a. Afterward, the insulating assembly 13a must be installed into the metal housing 12a. It is evident that this type of connector socket 1a has many components, complex assembly process, and difficult quality control, making it time-consuming and labor-intensive. Utility Model Content

[0004] The present invention provides a connector socket that can improve the technical problems of multiple and complex assembly processes, difficulty in quality control, and time and labor costs in related technologies.

[0005] An embodiment of this utility model provides a connector socket, comprising:

[0006] The base is provided with a plug-in slot, the plug-in slot has a plug-in end and a connecting end that are separated from each other, and an annular limiting structure is provided at one end of the plug-in slot near the plug-in end;

[0007] The wiring harness includes a female terminal at one end of the wiring harness; the female terminal can extend from the connection end along the insertion slot through the annular limiting structure to the insertion end.

[0008] The power connection female terminal is equipped with a spring-loaded latch structure.

[0009] The snap-fit ​​structure can be elastically compressed when passing through the annular limiting structure, and can be reset and abut against the end face of the annular limiting structure near the plug end after leaving the annular limiting structure.

[0010] In one embodiment, the seat includes an inner peripheral wall for forming the insertion slot, the annular limiting structure protrudes from the inner peripheral wall, and the side of the annular limiting structure away from the inner peripheral wall forms a limiting opening.

[0011] The spring-loaded structure is provided in two parts, and the power connection female terminal includes two opposite sides. The two spring-loaded structures are provided on the opposite sides of the power connection female terminal.

[0012] Each of the aforementioned spring-loaded structures has an abutting end that abuts against the end face of the annular limiting structure, and the distance between one abutting end and the other abutting end is greater than the radial dimension of the limiting opening.

[0013] In one embodiment, the female terminal further includes a terminal body for connecting to a male terminal;

[0014] The spring-loaded structure is disposed on the terminal body, and the spring-loaded structure extends from the end of the terminal body away from the annular limiting structure toward the annular limiting structure and the inner peripheral wall.

[0015] In one embodiment, the spring-loaded structure includes a deformable portion and a supporting portion, wherein the deformable portion is bent to connect the terminal body and the supporting portion.

[0016] A deformation angle is formed between the deformable portion and the terminal body so that the deformable portion can accumulate or release elastic potential energy; the end of the supporting portion away from the deformable portion includes the abutting end.

[0017] In one embodiment, the terminal body includes a covering structure, the covering structure including a plurality of sides, the plurality of sides being bent and connected to form a cavity for fitting a male terminal; the spring-loaded structure is disposed on the outer side of the covering structure opposite to the cavity.

[0018] In one embodiment, the terminal body includes a connector and two elastic arms. The connector includes two separate end faces and a side face connecting the two end faces. The two elastic arms are disposed on one end face and are spaced apart at one end of the two elastic arms near the connector. Each elastic arm includes a clamping end away from the connector. The two clamping ends are disposed close to or in contact with each other for elastically clamping the male terminal. The spring-loaded structure is disposed on the side face.

[0019] In one embodiment, the snap-fit ​​structure and the covering structure are integrally stamped.

[0020] In one embodiment, the wiring harness further includes a cable, and the power connection female terminal is crimped to one end of the cable.

[0021] In one embodiment, the base includes a metal housing and an insulating assembly.

[0022] The insulating component is provided with a through slot for receiving at least a portion of the wiring harness, and the metal sleeve is fitted over the outside of the insulating component away from the through slot.

[0023] In one embodiment, the metal housing includes a housing body and a panel. The housing body is sleeved on the outside of the insulating component, and the panel is circumferentially disposed on the outside of the housing body. The panel is used to connect to the loading surface. A connector is protruding from the outside of the housing body, and a notch is provided on the portion of the panel facing the connector.

[0024] The beneficial effects of the embodiments of this utility model are as follows: By providing a plug-in slot in the base, a limiting structure inside the plug-in slot, and a spring-loaded structure outside the power-connecting female terminal, the spring-loaded structure can be elastically compressed when passing through the annular limiting structure and can reset after leaving the annular limiting structure. This allows the end of the wiring harness with the power-connecting female terminal to extend from the connecting end through the limiting structure to the plug-in end within the plug-in slot. The spring-loaded structure can abut against the limiting structure after extending out of the limiting slot. Compared to related technologies that require first installing the female terminal on the tailstock and then installing the insulating body inside the metal casing to achieve axial limiting of the female terminal, this application simplifies the production and assembly process, facilitating mass production and automated manufacturing. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is an exploded view of a connector socket in related technologies;

[0027] Figure 2 This is a cross-sectional schematic diagram of a connector socket in related technologies;

[0028] Figure 3 This is an exploded view of the connector socket provided in an embodiment of this application;

[0029] Figure 4 This is a schematic diagram of the wiring harness provided in one embodiment of this application;

[0030] Figure 5 This is a schematic diagram of the orthographic projection structure of the connector socket provided in an embodiment of this application;

[0031] Figure 6 yes Figure 5 A schematic diagram of the cross-section obtained by cutting from point AA;

[0032] Figure 7 yes Figure 6 Enlarged diagram of section B in the middle;

[0033] Figure 8 This is a schematic diagram of the wiring harness provided in another embodiment of this application.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Connector socket;

[0036] 11. Base; 110. Insertion slot; 1101. Insertion end; 1102. Connection end; 1103. Limiting port; 111. Metal housing; 111a. Housing body; 111b. Panel; 111c. Connector; 1110. Recess; 112. Insulating component; 112a. Annular limiting structure;

[0037] 12. Connect to the power bus terminal;

[0038] 13. Spring-loaded structure; 131. Deformation part; 132. Supporting part; 132a. Abutting end;

[0039] 14. Terminal body; 14a. Covering structure; 140. Cavity; 14b. Elastic arm; 141b. Clamping end; 14c. Connector;

[0040] 15. Cable; 15a. Positive power line; 15b. Negative power line; 15c. First signal line; 15d. Second signal line; 16. Sealing ring; 161. First part; 162. Second part; 1621. Annular protrusion; 17. Stamped terminal. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0042] Connectors and sockets are devices used to connect electrical equipment and transmit electrical energy. They are widely used in various industries. For example, in new energy vehicles, connectors and sockets are used to connect high-voltage components such as battery packs, drive motors, on-board chargers, and air conditioning compressors to realize the transmission and distribution of high-voltage electrical energy. In power systems, connectors and sockets are used to connect various high-voltage electrical equipment in power generation, transmission, transformation, and distribution.

[0043] Please see Figure 1 and Figure 2 , Figure 1 This is an exploded view of a connector socket in related technologies. Figure 2 This is a cross-sectional schematic diagram of a connector socket in related technologies.

[0044] The connector socket 1a includes a female terminal 11a, a metal housing 12a, and an insulating assembly 13a. In related technologies, the female terminal 11a is a cylindrical terminal, machined by a lathe. The insulating assembly 13a includes a connected insulating shell 131a and a tail cap 132a, with at least a portion of the tail cap 132a installed within the insulating shell 131a. The insulating assembly 13a has an installation space 130a, within which a limiting structure 133a is formed at the junction of the insulating shell 131a and the tail cap 132a to restrict the axial movement of the female terminal 11a. When assembling this connector socket 1a, the female terminals 11a must first be installed one by one onto the tail cap 132a, and then the tail cap 132a must be installed into the insulating shell 131a so that the female terminal 11a is axially limited within the installation space 130a by the limiting structure 133a. Afterward, the insulating assembly 13a must be installed into the metal housing 12a. It is evident that this type of connector socket 1a has many components, complex assembly process, and difficult quality control, making it time-consuming and labor-intensive.

[0045] The present invention provides a connector socket 1 to improve the technical problems of connector socket 1 in related technologies, which involve many and complex assembly processes, difficulty in quality control, and time and labor costs.

[0046] like Figures 3 to 7 , Figure 3 This is an exploded view of the connector socket 1 provided in an embodiment of this application. Figure 4 This is a schematic diagram of the wiring harness provided in one embodiment of this application. Figure 5 This is a schematic diagram of the orthographic projection structure of the connector socket 1 provided in an embodiment of this application. Figure 6 yes Figure 5 A schematic diagram of the cross-section obtained by cutting from point AA. Figure 7 yes Figure 6 Enlarged schematic diagram of section B.

[0047] Please see Figure 6 and Figure 7 The connector socket 1 of this utility model includes a base 11 and a wire harness.

[0048] The base 11 is used to connect and fix the wiring harness. The base 11 may be provided with a plug-in slot 110, which has a plug-in end 1101 and a connecting end 1102 that are separated from each other. The plug-in slot 110 has an annular limiting structure 112a at one end near the plug-in end 1101.

[0049] The wiring harness may include a female terminal 12, which is located at one end of the wiring harness. The female terminal 12 can extend from the connection end 1102 along the insertion slot 110 through the annular limiting structure 112a to the insertion end 1101. The female terminal 12 may be provided with a spring-loaded structure 13. The spring-loaded structure 13 can be elastically compressed when passing through the annular limiting structure 112a, and can be reset and abut against the end face of the annular limiting structure 112a near the insertion end 1101 after leaving the annular limiting structure 112a.

[0050] This embodiment of the invention provides a insertion slot 110 in the base 11, with an annular limiting structure 112a inside the insertion slot 110 and a spring-loaded latch structure 13 outside the power connection female terminal 12. When the power connection female terminal 12 passes through the annular limiting structure 112a, the spring-loaded latch structure 13 is elastically compressed and returns to its original position after leaving the annular limiting structure 112a. This allows the end of the wiring harness with the power connection female terminal 12 to extend from the connection end 1102 along the insertion slot 110 through the annular limiting structure 112a to the insertion end 1101. After extending out of the limiting opening 1103, the spring-loaded latch structure 13 abuts against the annular limiting structure 112a to achieve axial limiting. Compared to the previous method requiring the female terminal to be installed on the tail cover first and then the insulating components to be installed in the metal casing to achieve axial limiting of the female terminal, this simplifies the production and assembly process and facilitates mass production and automated manufacturing.

[0051] Please see Figure 3 and Figure 6 In one embodiment, the base 11 may include a metal housing 111 and an insulating component 112. The insulating component 112 has a insertion slot 110 for accommodating at least a portion of the wiring harness. The metal housing 111 has a receiving space and is fitted onto the outside of the insulating component 112, away from the insertion slot 110. By placing the insulating component 112 inside the metal housing 111, and inserting one end of the wiring harness into the insertion slot 110, one advantage is that the insulating component 112 can prevent electrical contact between the metal housing 111 and the wiring harness from causing the metal housing 111 to become charged. Another advantage is that the metal housing 111 can provide electromagnetic shielding for the wiring harness.

[0052] In one embodiment, the metal housing 111 may include a housing body 111a and a panel 111b. The housing body 111a is sleeved on the outside of the insulating component 112, and the panel 111b is circumferentially disposed on the outside of the housing body 111a. The panel 111b is used to connect to the loading surface. The panel 111b may be designed with through holes for assembly connection according to the specific application. A connector 111c protrudes from the outside of the housing body 111a. The connector 111c is used for mechanical connection with the connector of the peripheral device to prevent the connector socket 1 from loosening from the connector. The portion of the panel 111b facing the connector 111c is provided with a notch 1110. The notch 1110 serves as an avoidance process structure in the molding process of the connector 111c, which can effectively reduce the difficulty of processing the connector 111c and ensure the molding of the connector 111c.

[0053] Please see Figure 6 and Figure 7 The seat 11 includes an inner peripheral wall for forming a insertion slot 110, and an annular limiting structure 112a protrudes from the inner peripheral wall. The side of the annular limiting structure 112a away from the inner peripheral wall forms a limiting opening 1103.

[0054] Two spring-loaded structures 13 may be provided, and the power connection female terminal 12 may include two opposite sides, with the two spring-loaded structures 13 respectively provided on the opposite sides of the power connection female terminal 12.

[0055] The spring-loaded structure 13 is provided with an abutting end 132a for abutting against the end face of the annular limiting structure 112a. The distance between the abutting end 132a of one spring-loaded structure 13 and the abutting end 132a of another spring-loaded structure 13 is greater than the radial dimension of the limiting opening 1103.

[0056] As the power connection terminal 12 extends from the connection end 1102 along the insertion slot 110 towards the insertion end 1101, when the power connection terminal 12 passes through the limiting port 1103, since the distance between the two abutting ends 132a is greater than the radial dimension of the limiting port 1103, the two spring-loaded structures 13 of the power connection terminal 12 can interfere with the annular limiting structure 112a. Under the annular interference, the two spring-loaded structures 13 can undergo elastic deformation in the direction of approaching each other. After extending out of the limiting port 1103, the two spring-loaded structures 13 can reset towards the inner peripheral wall so that they can abut against the end face of the annular limiting structure 112a.

[0057] In some embodiments of this application, the spring-loaded latch structure 13 may be one, three, or more. For example, when there is only one spring-loaded latch structure 13, it may be located on either side of the power connection female terminal 12. In this embodiment, to ensure that the power connection female terminal 12 can pass through the limiting opening 1103 and be axially limited after passing through the limiting opening 1103, the distance between the opposite side of the power connection female terminal 12 and the abutting end 132a of the spring-loaded latch structure 13 should be greater than the radial dimension of the limiting opening 1103. For embodiments with other numbers of spring-loaded latch structures 13, please refer to the relevant descriptions of the embodiments in this specification.

[0058] Please see Figure 4 and Figure 8 , Figure 8 This is a schematic diagram of the wiring harness provided in another embodiment of this application. In one embodiment of this application, the female terminal 12 may further include a terminal body 14 for connecting a male terminal. A spring-loaded structure 13 is disposed on the terminal body 14 and extends from the end of the terminal body 14 away from the annular limiting structure 112a toward the annular limiting structure 112a and the inner peripheral wall.

[0059] Please see Figure 4For example, the terminal body 14 may include a covering structure 14a, which may include multiple sides, such as four sides, which are bent and connected to form a cavity 140 that can be adapted to the male terminal. The spring-loaded structure 13 is provided on the outer side of the covering structure 14a opposite to the cavity 140. It is understood that the covering structure 14a may also include three sides, five sides, or other numbers of sides. The implementation of the covering structure 14a with these numbers of sides is similar to the implementation of the covering structure 14a with four sides, and specific details can be found in the relevant description in this specification.

[0060] Please see Figure 8 In another embodiment, the terminal body 14 may include a connector 14c and an elastic arm 14b. The connector 14c includes two separate end faces and a side face connecting the two end faces, and has a columnar shape. For example, the connector 14c may be a quadrangular prism. Understandably, the connector 14c may also be a triangular prism, pentagonal prism, hexagonal prism, or cylinder, etc. The implementation of these shapes of connector 14c is similar to that of the quadrangular prism shape of connector 14c, and specific details can be found in the relevant descriptions in this specification. In this embodiment, the spring-loaded latch structure 13 may be provided on the side face of the connector 14c.

[0061] Two elastic arms 14b are provided, and the two elastic arms 14b are located on one end face of the connector 14c. The two elastic arms 14b are spaced apart from the end of the connector 14c to provide space for accommodating at least part of the male terminal. Each elastic arm 14b includes a clamping end 141b away from the connector 14c. The two clamping ends 141b are arranged close to each other or in contact with each other so that when the male terminal is inserted between the two clamping ends 141b, the two clamping ends 141b can move away from each other and generate elastic force to clamp and fix the male terminal.

[0062] Please see Figure 4 and Figure 7 In one embodiment, the spring-loaded structure 13 may include a deformable portion 131 and a supporting portion 132. The deformable portion 131 bends to connect the terminal body 14 and the supporting portion 132. A deformation angle is formed between the deformable portion 131 and the terminal body 14 so that the deformable portion 131 can accumulate or release elastic potential energy. The end of the supporting portion 132 away from the deformable portion 131 includes an abutting end 132a.

[0063] Specifically, during the process of the power connection terminal 12 passing through the limiting opening 1103, the supporting part 132 interferes with the annular limiting structure 112a. The supporting part 132 abuts against the side of the annular limiting structure 112a. Under the interference of the supporting part 132 and the annular limiting structure 112a, the deformable part 131 can deform towards the terminal body 14. At this time, the deformation angle becomes smaller, and the deformable part 131 accumulates elastic potential energy. After extending out of the limiting opening 1103, the deformable part 131 releases the elastic potential energy, the deformation angle returns to its original state, and the supporting part 132 can reset and abut against the end face of the annular limiting structure 112a.

[0064] The spring-loaded snap-fit ​​structure 13 and the terminal body 14 can be integrally stamped. For example, in one embodiment, a stamping machine can be used to stamp a blank for forming the power connection female terminal 12. The blank includes multiple sides for forming the covering structure 14a. Each side includes a stamping area and a non-stamping area. The stamping machine is started to stamp the stamping area of ​​the side. After stamping, one end of the stamping area remains connected to the non-stamping area of ​​the covering structure 14a, while the other end is separated from the non-stamping area of ​​the covering structure 14a, thereby obtaining the covering structure 14a with the spring-loaded snap-fit ​​structure 13. By integrally stamping the spring-loaded snap-fit ​​structure 13 and the covering structure 14a of the power connection female terminal 12, this design structure is simple, the process is simple, it is conducive to the mass production of the power connection female terminal 12, and greatly saves production costs and improves production efficiency.

[0065] Please see Figure 3 In one embodiment of this application, the wiring harness further includes a cable 15, and a female terminal 12 is crimped to one end of the cable 15. Exemplarily, the connector socket 1 provided in this embodiment may include a positive power line 15a, a negative power line 15b, a first signal line 15c, and a second signal line 15d. Correspondingly, a positive female terminal, a negative female terminal, a first signal female terminal, and a second signal female terminal may be designed according to the diameters of the positive power line 15a, the negative power line 15b, the first signal line 15c, and the second signal line 15d. The positive female terminal is crimped to one end of the positive power line 15a, the negative female terminal is crimped to one end of the negative power line 15b, the first signal female terminal is crimped to one end of the first signal line 15c, and the second signal female terminal is crimped to one end of the second signal line 15d.

[0066] In the specific crimping process, for example, the power connection female terminal 12 can be pre-placed in the crimping machine, and the exposed conductor end of the cable 15 is pre-inserted into one end of the power connection female terminal 12. After the crimping machine is started, pressure is applied to the end of the power connection female terminal 12 near the cable 15 to deform it, thereby connecting the power connection female terminal 12 to the cable 15.

[0067] By crimping the power female terminal 12 to one end of the cable 15, this design process is simple, facilitates automated production, and greatly saves production costs and improves production efficiency.

[0068] Compared with the related technologies that use machined cylindrical female terminals, which need to be assembled one by one into the tailstock during the assembly process, and then the female terminals are axially limited by the assistance of insulating components, the power connection female terminal 12 in this application embodiment can be continuously produced by forming the strip through a stamping die, and the power connection female terminal can be continuously crimped by a crimping equipment, which improves production efficiency, simplifies the assembly process, and reduces costs. After the power connection female terminal 12 is inserted into the insertion slot 110, it can abut against the end face of the annular limiting structure 112a, which can realize the self-locking fixation of the power connection female terminal 12 in the axial direction of the insertion slot 110. The assembly is convenient and the quality is reliable.

[0069] Please see Figure 3 and Figure 6 The connector socket 1 also includes a sealing ring 16, which is sleeved on at least a portion of the insulation layer of the cable 15 and is sealed between the outer peripheral surface of the cable 15 and the inner peripheral wall of the seat 11 between the annular limiting structure 112a and the connecting end 1102.

[0070] Please see Figure 6 In one embodiment, the sealing ring 16 may include a first portion 161 and a second portion 162 integrally connected along the axial direction of the cable 15. The radial dimension of the first portion 161 is smaller than the inner diameter of the insertion slot 110 and larger than the inner diameter of the limiting port 1103, thereby reducing the assembly difficulty of the sealing ring 16 during the insertion of the cable 15 into the insertion slot 110, allowing the first portion 161 to easily enter the insertion slot 110 from the connection end 1102. In another embodiment, a stamped terminal 17 may be connected to one end of the cable 15 near the power connection female terminal 12. One end of the first portion 161 is riveted to the tail of the stamped terminal 17 (i.e., the end of the stamped terminal 17 near the cable 15) to prevent the sealing ring 16 from moving axially along the cable 15. The other end of the stamped terminal 17 away from the cable 15 is connected to the power connection female terminal 12. The radial dimension of the second part 162 is larger than the inner diameter of the insertion groove 110. Two or more annular protrusions 1621 may be provided on the outer side of the second part 162 away from the cable 15. These annular protrusions 1621 may be connected together or spaced apart along the axial direction of the cable 15. After the sealing ring 16 is installed in the insertion groove 110, the annular protrusions 1621 interfere with the inner circumferential wall surrounding the insertion groove 110, thus elastically abutting against the inner circumferential wall, providing good moisture and water resistance. Compared to the traditional design using O-ring seals to assemble the cable's annular groove, this embodiment uses a wavy, raised, rotating sealing ring, greatly improving sealing performance.

[0071] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A connector socket, characterized in that, include: The base is provided with a plug-in slot, the plug-in slot has a plug-in end and a connecting end that are separated from each other, and an annular limiting structure is provided at one end of the plug-in slot near the plug-in end; The wiring harness includes a female terminal at one end of the wiring harness; the female terminal can extend from the connection end along the insertion slot through the annular limiting structure to the insertion end. The power connection female terminal is equipped with a spring-loaded latch structure. The snap-fit ​​structure can be elastically compressed when passing through the annular limiting structure, and can be reset and abut against the end face of the annular limiting structure near the plug end after leaving the annular limiting structure.

2. The connector socket according to claim 1, characterized in that, The seat includes an inner peripheral wall for forming the insertion slot, and the annular limiting structure protrudes from the inner peripheral wall, with the side of the annular limiting structure away from the inner peripheral wall forming a limiting opening. The spring-loaded structure is provided in two parts, and the power connection female terminal includes two opposite sides. The two spring-loaded structures are provided on the opposite sides of the power connection female terminal. Each of the aforementioned spring-loaded structures has an abutting end that abuts against the end face of the annular limiting structure, and the distance between one abutting end and the other abutting end is greater than the radial dimension of the limiting opening.

3. The connector socket according to claim 2, characterized in that, The female terminal also includes a terminal body, which is used to connect to the male terminal. The spring-loaded structure is disposed on the terminal body, and the spring-loaded structure extends from the end of the terminal body away from the annular limiting structure toward the annular limiting structure and the inner peripheral wall.

4. The connector socket according to claim 3, characterized in that, The spring-loaded structure includes a deformable part and a supporting part, wherein the deformable part is bent to connect the terminal body and the supporting part. A deformation angle is formed between the deformable portion and the terminal body so that the deformable portion can accumulate or release elastic potential energy; the end of the supporting portion away from the deformable portion includes the abutting end.

5. The connector socket according to claim 3 or 4, characterized in that, The terminal body includes a covering structure, the covering structure includes multiple sides, the multiple sides are bent and connected to form a cavity for fitting with a male terminal; the spring-loaded structure is located on the outer side of the covering structure opposite to the cavity.

6. The connector socket according to claim 3 or 4, characterized in that, The terminal body includes a connector and two elastic arms. The connector includes two separate end faces and a side face connecting the two end faces. The two elastic arms are disposed on one end face and are spaced apart at one end of the two elastic arms near the connector. Each elastic arm includes a clamping end away from the connector. The two clamping ends are disposed close to or in contact with each other for elastically clamping the male terminal. The spring-loaded structure is disposed on the side face.

7. The connector socket according to claim 5, characterized in that, The snap-fit ​​structure and the covering structure are integrally stamped.

8. The connector socket according to any one of claims 1-4, characterized in that, The wiring harness also includes a cable, and the power connection female terminal is crimped to one end of the cable.

9. The connector socket according to any one of claims 1-4, characterized in that, The base includes a metal casing and insulating components. The insulating component is provided with a through slot for receiving at least a portion of the wiring harness, and the metal sleeve is fitted over the outside of the insulating component away from the through slot.

10. The connector socket according to claim 9, characterized in that, The metal casing includes a casing body and a panel. The casing body is sleeved on the outside of the insulating component, and the panel is circumferentially disposed on the outside of the casing body. The panel is used to connect to the loading surface. A connector is protruding from the outside of the casing body, and a notch is provided on the portion of the panel facing the connector.

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