A device end socket, a conversion socket and a connector socket

By setting internal and external plug-in terminals and conversion signal terminals between the equipment-side socket and the adapter socket, the problem of cumbersome connection between the equipment-side socket and the printed circuit board is solved, realizing a simple high-voltage interlock connection and improving installation efficiency.

CN224418044UActive Publication Date: 2026-06-26CHINA AVIATION OPTICAL ELECTRICAL TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA AVIATION OPTICAL ELECTRICAL TECH CO LTD
Filing Date
2025-05-20
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The connection between the signal terminals of the existing equipment socket and the printed circuit board is cumbersome, resulting in reduced installation efficiency.

Method used

The two ends of the signal terminal in the device socket are set as internal and external plug-in terminals respectively, and an adapter signal terminal is set in the adapter socket. This allows the device signal terminal to connect to the printed circuit board by plugging into the adapter signal terminal, avoiding wire stripping and soldering operations.

Benefits of technology

It simplifies the connection process between the equipment-side socket and the printed circuit board, improves installation efficiency, and ensures the realization of high-voltage interlocking.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224418044U_ABST
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Abstract

The utility model relates to the field of parts of connecting device, concretely relates to a device end socket, a adapter socket and a connector socket. The connector socket includes device end socket and adapter socket, and the device end socket includes socket shell, and the socket shell is fixedly installed with device end power terminal and device end signal terminal, and the both ends of device end signal terminal are respectively inner and outer plug -in end, and the outer plug -in end is used for with the plug -in signal terminal in the adapter plug -in, and the inner plug -in end is used for with the adapter signal terminal in the adapter socket, and the adapter socket includes adapter shell, and the adapter shell is fixedly installed with adapter power terminal and adapter signal terminal, and one end of adapter signal terminal is printed board connecting end, and the other end is signal terminal plug -in end. Such, after the device end socket and adapter socket are inserted, the device end signal terminal can realize its connection with printed board through the plug -in of adapter signal terminal to guarantee high -voltage interlock, and the operation is simple, and the installation efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of components for connecting devices, specifically to a device-end socket, an adapter socket, and a connector socket. Background Technology

[0002] Driven by technological advancements, the new energy vehicle market has seen continuous sales growth and increasing market share. Connectors and sockets are commonly used power connection components in automobiles. To ensure ease of installation, existing connector sockets typically include device-side sockets and adapter sockets. For example, Chinese utility model patent CN219833102U discloses an adapter high-voltage connector assembly. This assembly includes an adapter component (i.e., an adapter socket) and a board-side component (i.e., a device-side socket) mounted on a mounting panel. The board-side component contains board-side power terminals and board-side signal terminals, while the adapter component contains adapter power terminals. One end of the adapter power terminal is plugged into the board-side power terminal, and the other end is soldered to the printed circuit board. When the board-side component and the adapter component are plugged in, the power terminals of the two components conduct to each other, thus achieving a circuit connection. To ensure high-voltage interlocking of the signal, the board-side signal terminal also needs to be connected to the printed circuit board. This typically involves connecting a lead wire to the board-side signal terminal, pulling the lead wire out of the mounting panel, and soldering it to the printed circuit board. This connection method is cumbersome and reduces installation efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a device-side socket to solve the problem that the connection between the signal terminals and the printed circuit board of existing device-side sockets is cumbersome and reduces installation efficiency; the purpose of this utility model is also to provide an adapter socket to solve the problem that the connection between the signal terminals and the printed circuit board of existing device-side sockets is cumbersome and reduces installation efficiency; the purpose of this utility model is also to provide a connector socket to solve the problem that the connection between the signal terminals and the printed circuit board of existing device-side sockets is cumbersome and reduces installation efficiency.

[0004] The present invention provides a device-side socket comprising a socket housing for fixed connection to a mounting panel, wherein a device-side power terminal and a device-side signal terminal are fixedly installed inside the socket housing, and the two ends of the device-side signal terminal are respectively an inner and an outer plug-in end, wherein the outer plug-in end is used to plug into the plug signal terminal in the adapter plug, and the inner plug-in end is used to plug into the adapter signal terminal in the adapter socket.

[0005] Furthermore, the inner plug-in terminal is a plug-in structure, and the socket housing is provided with a signal terminal mounting cavity that runs through the front and back. The signal terminal mounting cavity is provided with a blocking structure that blocks the signal terminal in the outward direction. A terminal cover is installed at the inner end of the signal terminal mounting cavity to block the signal terminal of the device end in the inward direction. The terminal cover is provided with an inner terminal clearance hole through which the adapter signal terminal of the adapter socket can pass to extend into the plug-in structure.

[0006] Furthermore, the cavity wall of the signal terminal mounting cavity has an inwardly extending overhanging section, and the terminal cover is interference-fitted onto the overhanging section.

[0007] Furthermore, the external connector is a socket structure, and the stop structure is a stop inward flange. The stop inward flange is provided with a plug signal terminal for the plug to pass through and extend into the external terminal clearance hole in the socket structure.

[0008] Furthermore, both the inner and outer plug-in ends are rectangular plug-in structures, and the two are connected by at least two connecting arms, with at least two of the connecting arms connected to two different sides of the rectangular plug-in structure.

[0009] Furthermore, both the inner and outer plug-in ends include an inner cylinder and an outer cylinder covering the inner cylinder. A portion of each connecting arm is connected to the inner cylinder, and the other portion is connected to the outer cylinder.

[0010] Furthermore, the device-side power terminals include positive and negative power terminals arranged in pairs, with the four device-side power terminals respectively located at the four vertices of a quadrilateral, and the device-side signal terminals located in the middle of the quadrilateral.

[0011] This utility model proposes an improved technical solution to address the problems existing in the above-mentioned technical solutions: The two ends of the device-side signal terminal in the device-side socket are respectively configured as an internal insertion terminal for insertion with the plug signal terminal in the adapter plug and an external insertion terminal for insertion with the adapter signal terminal in the adapter socket. An adapter signal terminal is provided in the adapter socket, with one end connected to the printed circuit board and the other end inserted into the device-side signal terminal of the device-side socket. Thus, after the device-side socket and adapter socket are plugged in, the device-side signal terminal can achieve its connection with the printed circuit board through the insertion of the adapter signal terminal to ensure high-voltage interlocking. At this time, it is not necessary to pull the wire out of the mounting panel or solder the wire to the printed circuit board, simplifying operation and improving installation efficiency.

[0012] Another aspect of this utility model provides an adapter socket, which includes an adapter housing, an adapter power terminal fixedly installed inside the adapter housing, and an adapter signal terminal installed inside the adapter housing. One end of the adapter signal terminal is a printed circuit board connection end for connecting to a printed circuit board, and the other end is a signal terminal insertion end for inserting into a device end signal terminal of a device end socket.

[0013] Furthermore, the signal terminal plug is a pin structure for plugging into the socket structure of the inner plug.

[0014] Furthermore, the power transfer terminals include positive and negative power transfer terminals arranged in pairs, with the four power transfer terminals respectively located at the four vertices of a quadrilateral, and the signal transfer terminal located in the middle of the quadrilateral.

[0015] Furthermore, the adapter power terminal and the adapter housing are integrally injection molded.

[0016] This utility model proposes an improved technical solution to address the problems existing in the above-mentioned technical solutions: An adapter signal terminal is provided inside the adapter socket. One end of the adapter signal terminal is connected to the printed circuit board, and the other end is plugged into the device signal terminal of the device socket. Thus, after the device socket and adapter socket are plugged in, the device signal terminal can achieve its connection with the printed circuit board by plugging into the adapter signal terminal to ensure high-voltage interlocking. At this time, it is not necessary to pull the wire out of the mounting panel, nor is it necessary to solder the wire to the printed circuit board, simplifying operation and improving installation efficiency.

[0017] Another aspect of this utility model provides a connector socket, which includes a device-side socket and an adapter socket. The device-side socket includes a socket housing for fixed connection to a mounting panel. A device-side power terminal and a device-side signal terminal are fixedly installed inside the socket housing. The two ends of the device-side signal terminal are internal and external plug-in terminals, respectively. The external plug-in terminal is used to plug into the plug signal terminal in the adapter plug, and the internal plug-in terminal is used to plug into the adapter signal terminal in the adapter socket. The adapter socket includes an adapter housing. An adapter power terminal is fixedly installed inside the adapter housing. An adapter signal terminal is also installed inside the adapter housing. One end of the adapter signal terminal is a printed circuit board connection terminal for connection with a printed circuit board, and the other end is a signal terminal plug-in terminal for plugging into the device-side signal terminal of the device-side socket.

[0018] Furthermore, the inner plug-in end is a socket structure, and the signal terminal plug-in end is a pin structure that extends out of the adapter housing and is used to plug into the socket structure of the inner plug-in end. The socket housing is provided with a signal terminal mounting cavity that runs through the front and back. The signal terminal mounting cavity is provided with a blocking structure that blocks the signal terminal in the outward direction. A terminal cover is installed at the inner end of the signal terminal mounting cavity to block the signal terminal of the device end in the inward direction. The terminal cover is provided with an inner terminal clearance hole through which the adapter signal terminal of the adapter socket can pass to extend into the socket structure.

[0019] Furthermore, the cavity wall of the signal terminal mounting cavity has an inwardly extending overhanging section, and the terminal cover is interference-fitted onto the overhanging section.

[0020] Furthermore, the external connector is a socket structure, and the stop structure is a stop inward flange. The stop inward flange is provided with a plug signal terminal for the plug to pass through and extend into the external terminal clearance hole in the socket structure.

[0021] Furthermore, both the inner and outer plug-in ends are rectangular plug-in structures, and the two are connected by at least two connecting arms, with at least two of the connecting arms connected to two different sides of the rectangular plug-in structure.

[0022] Furthermore, both the inner and outer plug-in ends include an inner cylinder and an outer cylinder covering the inner cylinder. A portion of each connecting arm is connected to the inner cylinder, and the other portion is connected to the outer cylinder.

[0023] Furthermore, the device-side power terminals include positive and negative power terminals arranged in pairs, with the four device-side power terminals respectively located at the four vertices of a quadrilateral, and the device-side signal terminal located in the middle of the quadrilateral. The switching power terminals include positive and negative switching power terminals arranged in pairs, with the four switching power terminals respectively located at the four vertices of a quadrilateral, and the switching signal terminal located in the middle of the quadrilateral.

[0024] Furthermore, the adapter power terminal and the adapter housing are integrally injection molded.

[0025] This utility model proposes an improved technical solution to address the problems existing in the above-mentioned technical solutions. The core concept of this utility model is to configure the two ends of the device-side signal terminal in the device-side socket as an internal insertion terminal for insertion with the plug signal terminal in the adapter plug and an external insertion terminal for insertion with the adapter signal terminal in the adapter socket. An adapter signal terminal is also provided in the adapter socket, with one end connected to the printed circuit board and the other end inserted into the device-side signal terminal of the device-side socket. Thus, after the device-side socket and adapter socket are plugged in, the device-side signal terminal can achieve its connection with the printed circuit board through the insertion of the adapter signal terminal to ensure high-voltage interlocking. At this time, it is not necessary to pull the wire out of the mounting panel or solder the wire to the printed circuit board, simplifying operation and improving installation efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a device end socket installed on a mounting panel according to the present invention;

[0027] Figure 2 for Figure 1 Rear view;

[0028] Figure 3 This is an exploded view of the device-end socket of this utility model;

[0029] Figure 4 This is a schematic diagram of the signal terminals on the device side;

[0030] Figure 5 for Figure 4 A cross-sectional view of surface AA;

[0031] Figure 6 This is a schematic diagram of the terminal cover structure;

[0032] Figure 7 This is a schematic diagram of the structure of an adapter socket according to the present invention;

[0033] Figure 8 for Figure 7 Another structural diagram from a different perspective;

[0034] Figure 9 This is a schematic diagram of the device end socket and adapter socket of the connector socket of this utility model before assembly onto the vehicle body;

[0035] Figure 10 This is a schematic diagram of the structure of the device end socket and adapter socket of the connector socket of this utility model after they are assembled on the vehicle body.

[0036] 1. Equipment-side socket; 11. Socket housing; 111. Connecting flange; 112. External terminal clearance hole; 113. Inward-facing retaining edge; 12. Equipment-side signal terminal; 121. Internal insertion terminal; 122. External insertion terminal; 123. Connecting arm; 124. Inner cylinder; 125. Outer cylinder; 126. Clamping piece; 13. Terminal cover; 131. Internal terminal clearance hole; 132. Reinforcing protrusion; 14. Sealing ring; 15. Equipment-side power terminal; 2. Adapter socket; 21. Adapter housing; 22. Adapter signal terminal; 221. Signal terminal insertion terminal; 222. Printed circuit board connection terminal; 23. Adapter power terminal; 3. Mounting panel; 4. Printed circuit board. Detailed Implementation

[0037] This utility model proposes an improved technical solution to address the problems existing in the above-mentioned technical solutions. The core concept of this utility model is to configure the two ends of the device-side signal terminal in the device-side socket as an internal insertion terminal for insertion with the plug signal terminal in the adapter plug and an external insertion terminal for insertion with the adapter signal terminal in the adapter socket. An adapter signal terminal is also provided in the adapter socket, with one end connected to the printed circuit board and the other end inserted into the device-side signal terminal of the device-side socket. Thus, after the device-side socket and adapter socket are plugged in, the device-side signal terminal can achieve its connection with the printed circuit board through the insertion of the adapter signal terminal to ensure high-voltage interlocking. At this time, it is not necessary to pull the wire out of the mounting panel or solder the wire to the printed circuit board, simplifying operation and improving installation efficiency.

[0038] Based on the above concept, the connector socket of this utility model includes as follows: Figure 9 , Figure 10 The device-side socket 1 and adapter socket 2 are shown. The device-side socket 1 includes, as follows: Figure 3 The socket housing 11 shown has a connecting flange 111 for fixed connection to the mounting panel 3. A sealing ring 14 is also clamped between the connecting flange 111 and the mounting panel 3 to ensure the insulation and sealing of the device-side socket 1. A device-side power terminal 15 and a device-side signal terminal 12 are fixedly installed inside the socket housing 11. The two ends of the device-side signal terminal 12 are internal and external plug-in terminals, respectively. The external plug-in terminal 122 is used to plug into the plug signal terminal in the adapter plug, and the internal plug-in terminal 121 is used to plug into the adapter signal terminal 22 in the adapter socket 2. The adapter socket 2 includes... Figure 7 , Figure 8The adapter housing 21 shown contains a power adapter terminal 23 and a signal adapter terminal 22, both fixedly installed within it. The signal adapter terminal 22 is integrally injection molded within the housing 21 to ensure its position remains constant. One end of the signal adapter terminal 22 is a printed circuit board (PCB) connection end 222 for connecting to the PCB 4. This PCB connection end 222 extends out of the adapter housing 21 and is soldered to the PCB 4. The other end of the signal adapter terminal 22 is a signal terminal insertion end 221 for connecting to the device signal terminal 12 of the device socket 1. Thus, after the device socket 1 and adapter socket 2 are connected, the device signal terminal 12 can connect to the PCB 4 via the insertion of the signal adapter terminal 22 to ensure high-voltage interlocking. This eliminates the need to pull the power cable out of the mounting panel 3 or solder the power cable to the PCB 4, simplifying operation and improving installation efficiency.

[0039] like Figure 3 , Figure 4 , Figure 5 As shown, both the inner connector 121 and the outer connector 122 are rectangular socket structures, and the signal terminal connector 221 is as follows: Figure 7 The pin structure extending out of the adapter housing 21 is for insertion into the socket structure of the inner plug-in end. The socket structure includes a square cylinder and two clips 126 inside the square cylinder. The pin structure extends into the square cylinder and is inserted between the two clips 126 to realize the conduction between the device end signal terminal 12 and the adapter signal terminal 22.

[0040] The socket housing 11 has a signal terminal mounting cavity that extends from front to back. The signal terminal mounting cavity also has a blocking structure that blocks the signal terminal in the outward direction. The blocking structure is as follows: Figure 2 The shown is a retaining flange 113, which has an outer terminal clearance hole 112 for the plug signal terminal to pass through and extend into the socket structure. The cavity wall of the signal terminal mounting cavity has an inwardly extending columnar overhanging section, on which an interference fit is provided. Figure 1 , Figure 6 The terminal cover 13 is shown. Specifically, the terminal cover 13 has a cylindrical portion that can be fitted onto the cantilever end. The inner wall of the cylindrical portion is provided with a force-fitting protrusion 132 for forcibly fixing it to the cantilever section, thereby achieving the installation of the terminal cover 13.

[0041] The terminal clearance hole 131 extends into the socket structure. The terminal cover 13 and the stop flange 113 can limit the device-side signal terminal 12 in the inward and outward directions to realize the installation of the device-side signal terminal 12.

[0042] like Figure 4 , Figure 5As shown, both the inner and outer plug-in terminals 122 include an inner cylinder 124 and an outer cylinder 125 covering the inner cylinder 124. The inner cylinder 124 is integrally connected to the clamping piece 126, and the outer cylinder 125 forms the aforementioned square cylinder. The inner and outer plug-in terminals 122 are connected by two connecting arms 123. One of the two connecting arms 123 is disposed on the inner cylinder 124, and the other is disposed on the outer cylinder 125, and is respectively connected to the adjacent surfaces of the inner cylinder 124 and the outer cylinder 125. In this way, the structural strength of the entire device-side signal terminal 12 can be improved, and torsional deformation of the device-side signal terminal 12 can be avoided.

[0043] The device-side power terminals 15 include pairs of positive and negative power terminals, with the four device-side power terminals 15 respectively located at the four vertices of a quadrilateral, and the device-side signal terminal 12 located in the middle of the quadrilateral. Correspondingly, the adapter socket 2 also has four adapter power terminals 23, with the four adapter power terminals 23 respectively located at the four vertices of a quadrilateral, and the adapter signal terminal 22 located in the middle of the quadrilateral.

[0044] Regarding the structure of the inner plug-in terminal, this utility model also provides another embodiment. In another embodiment, the inner plug-in terminal can be a pin structure, and correspondingly, the signal terminal plug-in terminal of the adapter signal terminal is a socket structure.

[0045] Regarding the structure of the external connector, this utility model also provides another embodiment. In another embodiment, the external connector can be a pin structure, and correspondingly, the connector of the plug signal terminal of the plug is a socket structure.

[0046] Regarding the installation of the terminal cover and the signal terminal mounting cavity, this utility model also provides another embodiment. In another embodiment, the signal terminal mounting cavity does not have an inwardly extending overhanging section. An annular groove is provided on the end face of the signal terminal mounting cavity, and a retaining groove is provided in the annular groove. A spring is provided on the cylindrical part of the terminal cover. The spring extends into the annular groove and cooperates with the retaining groove in the annular groove to realize the installation of the terminal cover.

[0047] Regarding the installation of the device-side signal terminal, this utility model also provides other embodiments. In one embodiment, the device-side signal terminal and the adapter socket are integrally cast. In another embodiment, elastic claws can be provided on the device-side signal terminal, and a slot can be provided in the signal terminal mounting cavity. The positioning of the device-side signal terminal is achieved by the cooperation of the elastic claws and the slot.

[0048] Regarding the structure of the signal terminals on the device side, this utility model also provides other embodiments. In another embodiment, the inner and outer plug-in terminals can be connected by only one connecting arm. In this case, the connecting arm can be connected to the inner cylinder or the outer cylinder. In another embodiment, the inner and outer plug-in terminals can also be connected by three or more connecting arms, as long as at least two of each connecting arm are connected to two different sides of the rectangular plug-in structure.

[0049] Regarding the layout of the device-side signal terminals and device-side power terminals, this utility model also provides another embodiment. In this embodiment, the device-side signal terminals can be located outside the four device-side power terminals. Correspondingly, the signal terminal plug-in end of the adapter signal terminal is also located outside the four adapter power terminals. In another embodiment, only two device-side power terminals may be provided. The device-side signal terminal can be located between the two device-side power terminals or beside them. Of course, the positions of the adapter signal terminal and the adapter power terminal correspond to the positions of the device-side signal terminals and the device-side power terminals, respectively.

[0050] Regarding the blocking structure, this utility model also provides another embodiment. In this other embodiment, the blocking structure can be a blocking end cover. The blocking end cover is fastened to the outside of the signal terminal mounting cavity. The blocking end cover is provided with an outer terminal clearance hole for the plug signal terminal of the plug to pass through and extend into the socket structure.

[0051] Regarding the installation of the adapter signal terminal and the adapter housing, this utility model also provides another embodiment. In this other embodiment, the adapter housing is provided with an upper and lower extending mounting cavity for installing the adapter signal terminal. A strong mounting barb is provided on the adapter signal terminal. The strong mounting barb is inserted into the cavity wall of the mounting cavity to realize the installation of the adapter signal terminal and the adapter housing.

[0052] Another aspect of this utility model provides a device-end socket. Since the device-end socket is the same as the embodiment of the device-end socket described above, it will not be described again here.

[0053] Another aspect of this utility model provides an adapter socket. Since the adapter socket is the same as the embodiment of the adapter socket described above, it will not be described again here.

[0054] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present utility model shall also be included within the protection scope of the present utility model.

Claims

1. A device-end socket comprising a socket housing (11) for fastening to a mounting panel (3), device-end power terminals (15) and device-end signal terminals (12) being fastened in the socket housing (11), characterized in that: The two ends of the device-side signal terminal (12) are internal and external plug-in terminals, respectively. The external plug-in terminal (122) is used to plug into the plug signal terminal in the adapter plug, and the internal plug-in terminal (121) is used to plug into the adapter signal terminal (22) in the adapter socket (2).

2. The device-side socket according to claim 1, characterized in that: The inner plug-in terminal (121) is a plug-in structure. The socket housing (11) is provided with a signal terminal mounting cavity that runs through the front and back. The signal terminal mounting cavity is provided with a blocking structure that blocks the signal terminal in the outward direction. The inner end of the signal terminal mounting cavity is provided with a terminal cover (13) to block the device end signal terminal (12) in the inward direction. The terminal cover (13) is provided with an inner end terminal clearance hole (131) through which the adapter signal terminal (22) of the adapter socket (2) passes to extend into the plug-in structure.

3. The device-side socket according to claim 2, characterized in that: The cavity wall of the signal terminal mounting cavity has an inwardly extending overhang, and the terminal cover (13) is interference-fitted onto the overhang.

4. The device-side socket according to claim 2 or 3, characterized in that: The external connector (122) is a socket structure, and the blocking structure is a blocking inward flange (113). The blocking inward flange (113) is provided with a plug signal terminal for the plug to pass through and extend into the external terminal clearance hole (112) in the socket structure.

5. The device-side socket according to any one of claims 1-3, characterized in that: Both the inner and outer plug terminals are rectangular plug structures, and the two are connected by at least two connecting arms (123), with at least two of the connecting arms (123) connected to two different sides of the rectangular plug structure.

6. The device-side socket according to claim 5, characterized in that: Both the inner and outer plug-in ends include an inner cylinder (124) and an outer cylinder (125) covering the inner cylinder (124). One part of each connecting arm is connected to the inner cylinder (124), and the other part is connected to the outer cylinder (125).

7. The device-side socket according to any one of claims 1-3, characterized in that: The device power terminals (15) include positive and negative power terminals arranged in pairs. The four device power terminals (15) are respectively located at the four vertices of a quadrilateral, and the device signal terminals (12) are located in the middle of the quadrilateral.

8. An adapter socket, comprising an adapter housing (21), wherein an adapter power terminal (23) is fixedly installed inside the adapter housing (21), characterized in that: The adapter housing (21) is also equipped with an adapter signal terminal (22). One end of the adapter signal terminal (22) is a printed circuit board connection terminal (222) for connecting to the printed circuit board (4), and the other end is a signal terminal plug-in terminal (221) for plugging into the device end signal terminal (12) of the device end socket (1).

9. The adapter socket according to claim 8, characterized in that: The signal terminal plug (221) is a pin structure that extends out of the adapter housing (21) and is used to plug into the socket structure of the inner plug (121).

10. The adapter socket according to claim 8 or 9, characterized in that: The power transfer terminal (23) includes positive and negative power transfer terminals (23) arranged in pairs. The four power transfer terminals (23) are respectively located at the four vertices of a quadrilateral, and the signal transfer terminal (22) is located in the middle of the quadrilateral.

11. The adapter socket according to claim 8 or 9, characterized in that: The power transfer terminal (23) and the transfer housing (21) are integrally injection molded.

12. A connector socket, comprising a device-side socket (1) and an adapter socket (2), characterized in that: The device end socket includes the device end socket (1) as described in any one of claims 1-7, and the adapter socket includes the adapter socket (2) as described in any one of claims 8-11.