Integrated socket and connecting assembly

Abstract

The utility model relates to the technical field of connectors, and discloses an integrated socket, which comprises a socket base body, a socket terminal and a signal transmission mechanism, a high-voltage sheath and a low-voltage sheath which are arranged at an interval are formed on the socket base body, the socket terminal is arranged in the high-voltage sheath, and the signal transmission mechanism is arranged in the low-voltage sheath. The signal transmission mechanism comprises at least two signal transmission terminals fixedly arranged in the socket base body, one ends of the at least two signal transmission terminals extend into the high-voltage sheath, and the other ends of the at least two signal transmission terminals extend into the low-voltage sheath; the utility model further discloses a connecting assembly comprising the integrated socket. The utility model has the advantages of high integration level, fewer spare parts and simpler structure, and is favorable for reducing the assembly and transportation cost.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and more specifically, to an integrated socket and a connection assembly. Background Art

[0002] In connectors applicable to high-voltage and high-current occasions, in order to know whether a plug and a socket are correctly connected, a high-voltage interlock mechanism is usually arranged in the connector. For example, two interlock female terminals and two interlock male terminals are respectively arranged in the plug and the socket. The two interlock female terminals are short-circuited. After the plug and the socket are connected, the interlock male terminal is inserted into the interlock female terminal, and the interlock male terminal is electrically connected to the control system to form a connected interlock signal loop, so that the control system can know the connection state of the plug and the socket.

[0003] In the existing socket, the interlock male terminal is installed in the socket base body, and a terminal installation and fixing structure needs to be designed accordingly. In addition, the interlock male terminal needs to be connected to the signal interface of the control system through an adapter wire and a matching low-voltage connector, that is, a wire-dropping connection is required. The wire-dropping connection also needs to consider the layout and assembly connection of the adapter wire and the low-voltage connector. Therefore, the above signal transmission structure in the prior art is relatively complex, the assembly process is cumbersome, which is not conducive to the structural simplicity optimization and cost reduction. Summary of the Utility Model

[0004] The utility model provides an integrated socket and a connection assembly to solve the problems of complex structure and cumbersome assembly process in the prior art.

[0005] An integrated socket provided by the utility model includes a socket base body, socket terminals and a signal transmission mechanism. High-voltage sheaths and low-voltage sheaths are formed on the socket base body at intervals. The socket terminals are installed in the high-voltage sheaths. The signal transmission mechanism includes at least two signal transmission terminals fixedly arranged in the socket base body. One ends of at least two signal transmission terminals extend into the high-voltage sheaths, and the other ends extend into the low-voltage sheaths.

[0006] Optionally, the high-voltage sheaths and the low-voltage sheaths are located on the same side of the socket base body.

[0007] Optionally, at least a part of the middle of the signal transmission terminals is embedded and injection-molded in the socket base body.

[0008] Optionally, both ends of the signal transmission terminals are respectively located in the high-voltage sheaths and the low-voltage sheaths, and are configured as PIN pins electrically connected to the docking terminals.

[0009] Optionally, an interlocking plug end is provided inside the high-voltage sheath. The signal transmission terminal includes at least two interlocking terminals. One end of the interlocking terminal is disposed inside the interlocking plug end, and the other end is disposed inside the low-voltage sheath.

[0010] Optionally, a temperature sensing mechanism connected to the socket terminal is provided inside the high-voltage sheath. The signal transmission terminal includes at least two temperature sensing terminals. One end of the temperature sensing terminal is connected to the temperature sensing mechanism, and the other end is disposed inside the low-voltage sheath.

[0011] Optionally, the temperature sensing mechanism includes a temperature sensing circuit board disposed inside the socket base body. A temperature sensor is integrated on the temperature sensing circuit board. The input end of the temperature sensor is connected to a heat conducting connecting member that abuts against the socket terminal, and the output end is electrically connected to an external control system through the temperature sensing terminal.

[0012] Optionally, a carrier seat is detachably installed on the side of the socket base body opposite to the high-voltage sheath. An installation groove is formed at one end of the carrier seat facing the socket base body. The temperature sensing circuit board is fixedly installed in the installation groove. A plug hole is formed on the temperature sensing circuit board. A conductive connecting member electrically connected to the output end of the temperature sensor is embedded in the plug hole. After the temperature sensing circuit board is loaded into the housing following the carrier seat, a part of the end of the temperature sensing terminal close to the temperature sensor is inserted into the plug hole and electrically connected to the conductive connecting member, so as to realize the electrical connection between the output end of the temperature sensor and the temperature sensing terminal.

[0013] Optionally, a through mounting groove is provided inside the carrier seat. The socket terminal is mounted in the through mounting groove. One side of the installation groove close to the through mounting groove is communicated with the through mounting groove. The heat conducting connecting member includes a heat conducting layer laid on the temperature sensing circuit board and a heat conducting piece fixedly provided at one end on the temperature sensing circuit board. The heat conducting layer is respectively connected to the input end of the temperature sensor and the heat conducting piece. The other end of the heat conducting piece extends into the through mounting groove and abuts against the socket terminal.

[0014] A connection assembly provided by the present utility model includes a high-voltage plug, a low-voltage plug connected to an external control system, and the integrated socket as described above. At least two first docking terminals are provided inside the high-voltage plug. At least two second docking terminals are provided inside the low-voltage plug. After the high-voltage plug and the low-voltage plug are respectively plugged into the high-voltage sheath and the low-voltage sheath of the integrated socket, the first docking terminal is electrically connected to one end of the signal transmission terminal extending into the high-voltage sheath, and the second docking terminal is electrically connected to one end of the signal transmission terminal extending into the low-voltage sheath, so as to transmit an electrical signal between the first docking terminal and the second docking terminal through the signal transmission terminal.

[0015] Optionally, a temperature-sensing circuit board is also provided in the socket base, on which a temperature sensor is integrated, the input end of the temperature sensor is connected to a thermally conductive connector abutting the end face of the socket terminal, the output end is connected to a temperature-sensing terminal provided in the socket base and one end of which extends into the low-voltage sheath, and the temperature-sensing terminal is electrically connected to a third docking terminal correspondingly provided in the low-voltage plug.

[0016] The utility model has the following beneficial effects:

[0017] The utility model avoids the wire layout and assembly procedures of traditional wire connection by fixing the signal transmission terminal in the socket base and integrally arranging the low-voltage sheath and the high-voltage sheath on the socket base, and can be quickly and directly connected to the control system. During transportation, the signal transmission terminal can also be transported integrally with the socket base. While ensuring the existing signal transmission function, the utility model has high integration, a small number of parts, and a simpler structure, which is conducive to reducing assembly and transportation costs.

[0018] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0020] Figure 1 It is a structural schematic diagram of the integrated socket from one perspective;

[0021] Figure 2 for Figure 1 A partial enlarged schematic diagram of

[0022] Figure 3 It is a structural schematic diagram of the integrated socket from another perspective;

[0023] Figure 4 for Figure 3 The schematic diagram of the structure after removing the tail cover and the socket terminal;

[0024] Figure 5 This is a schematic diagram of the assembly status of the temperature sensing circuit board, temperature sensing terminal, tail cover, and socket terminal (only one transfer terminal is shown);

[0025] Figure 6 It is a structural schematic diagram of the temperature sensing mechanism;

[0026] Figure 7 is a schematic diagram of the connected components;

[0027] Figure 8Schematic diagram of the connection state between a high-voltage plug and an integrated socket;

[0028] Figure 9 Schematic diagram of the structure of a high-voltage plug.

[0029] The markings in the figure are as follows:

[0030] 1. Integrated socket; 11. Socket base; 12. High-voltage sheath; 13. Low-voltage sheath; 14. Interlocking plug-in end; 15. Interlocking terminal; 16. Temperature-sensitive terminal; 17. Carrier seat; 171. Installation groove; 172. Through-installation groove; 173. Positioning clamping post; 18. Socket terminal; 181. Plug-in reed; 19. Temperature-sensitive circuit board; 191. Conductive connecting piece; 1911. Conductive contact ring; 1912. Contact spring piece; 192. Plug-in hole; 193. Temperature sensor; 194. Heat-conducting connecting piece; 1941. Heat-conducting layer; 1942. Heat-conducting sheet; 195. Clamping hole;

[0031] 2. High-voltage plug; 21. First docking terminal;

[0032] 3. Installation panel;

[0033] 4. Low-voltage plug; 41. Second docking terminal; 42. Third docking terminal. Detailed implementation manners

[0034] Now, various exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be noted that: unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

[0035] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way serves as a limitation to the present invention and its application or use.

[0036] Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such technologies, methods, and devices should be regarded as part of the specification.

[0037] In all the examples shown and discussed here, any specific values should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values.

[0038] As Figures 1-6As shown in the figure, an embodiment of the present utility model provides an integrated socket 1, which includes a socket base body 11, socket terminals 18, and a signal transmission mechanism. High-voltage sheaths 12 and low-voltage sheaths 13 are formed on the socket base body 11 at intervals. The socket terminals 18 are installed in the high-voltage sheaths 12. The signal transmission mechanism includes at least two signal transmission terminals fixedly arranged in the socket base body 11. One ends of at least two signal transmission terminals extend into the high-voltage sheaths 12, and the other ends extend into the low-voltage sheaths 13, so as to be electrically connected to the docking terminals.

[0039] In the above solution, by fixedly arranging the signal transmission terminals in the socket base body 11 and integrally arranging the low-voltage sheaths 13 and the high-voltage sheaths 12 on the socket base body 11, the wire laying and assembly processes of the wire connection of the signal transmission structure in the traditional technology are avoided. It can be quickly and directly connected to the control system. During transportation, the signal transmission terminals can also be transported integrally with the socket base body 11. While ensuring the existing signal transmission function, the integration degree is high, the number of loose parts is small, the structure is more concise, which is beneficial to reducing the assembly and transportation costs.

[0040] Furthermore, considering the actual application scenarios and the need for easy connection, as Figure 1 shown, in this embodiment, the high-voltage sheaths 12 and the low-voltage sheaths 13 are located on the same side of the socket base body 11, so that the paired high-voltage plugs 2 and low-voltage plugs 4 can be respectively connected to the high-voltage sheaths 12 and the low-voltage sheaths 13 on the same side of the socket base body 11.

[0041] Furthermore, considering the process feasibility of processing and manufacturing and ensuring the reliability of the fixed connection between the signal transmission terminals and the socket base body 11, at least part of the middle of the signal transmission terminals is embedded and injection-molded in the socket base body 11. As Figures 1-4 shown, in this embodiment, except for the two ends respectively extending into the high-voltage sheaths 12 and the low-voltage sheaths 13, the rest of the middle parts of the two ends are all embedded and injection-molded in the socket base body 11.

[0042] Furthermore, in order to facilitate the connection with the corresponding docking terminals in devices such as the high-voltage plugs 2 and the low-voltage plugs 4, as Figures 1-5 shown, in this embodiment, the two ends of the signal transmission terminals are respectively located in the high-voltage sheaths 12 and the low-voltage sheaths 13, and are configured as PIN pins for electrically connecting with the corresponding docking terminals.

[0043] In this embodiment, the signal transmission terminals are all metal structures formed by integral stamping.

[0044] Furthermore, considering the need for the high-voltage interlock function, as Figures 1-2As shown, in this embodiment, an interlocking insertion end 14 is provided inside the high-voltage sheath 12. The signal transmission terminal includes two interlocking terminals 15. One end of the interlocking terminal 15 is arranged inside the interlocking insertion end 14, and the other end is arranged inside the low-voltage sheath 13.

[0045] Of course, according to actual needs, in embodiments other than this embodiment, the number of the above-mentioned interlocking terminals can also be more than two, such as four.

[0046] Furthermore, considering the need for temperature induction monitoring function of the internal terminals of the connector, as Figures 1-5 shown, in this embodiment, a temperature sensing mechanism connected to the socket terminal 18 is further provided inside the high-voltage sheath 12. The signal transmission terminal includes two temperature sensing terminals 16. One end of the temperature sensing terminal 16 is connected to the temperature sensing mechanism, and the other end is arranged inside the low-voltage sheath 13.

[0047] Of course, according to actual needs, in embodiments other than this embodiment, the number of the above-mentioned temperature sensing terminals can also be more than two, such as four.

[0048] Furthermore, considering the need for facilitating the assembly of the temperature sensing mechanism and ensuring good temperature sensing performance, as Figures 5-6 shown, in this embodiment, the temperature sensing mechanism includes a temperature sensing circuit board 19 arranged inside the socket base 11. A temperature sensor 193 is integrated on the temperature sensing circuit board 19. The input end of the temperature sensor 193 is connected with a heat conducting connecting piece 194 which abuts against the socket terminal 18, and the output end is electrically connected with an external control system through the temperature sensing terminal 16, that is, the output end of the temperature sensor 193 is electrically connected with the corresponding docking terminal inside the low-voltage plug 4 through the temperature sensing terminal 16, so as to realize the electrical connection between the output end of the temperature sensor 193 and the control system.

[0049] Specifically, in order to further facilitate the assembly of the temperature sensing circuit board 19, as Figures 3-5 shown, in this embodiment, a carrier seat 17 is installed on the opposite side of the high-voltage sheath 12 of the socket base 11. The carrier seat 17 can be installed on the socket base 11 through a detachable connection form such as interference fit or snap connection. In this embodiment, the snap connection form is adopted.

[0050] An installation groove 171 is opened at one end of the carrier seat 17 facing the socket base 11. The temperature sensing circuit board 19 is fixedly installed in the installation groove 171 through conventional fixing methods such as bonding, interference fit, snap connection, etc., as Figures 5-6As shown, this embodiment adopts a snap-on connection, that is, a snap-on hole 195 is provided on the temperature sensing circuit board 19, and a positioning snap-on column 173 is provided in the mounting groove 171. After the positioning snap-on column 173 passes through the snap-on hole 195, the free end of the positioning snap-on column 173 is snap-on with the temperature sensing circuit board 19, so that the temperature sensing circuit board 19 is positioned and fixed in the mounting groove 171; a plug-in hole 192 is provided on the temperature sensing circuit board 19, and a conductive connector 191 electrically connected to the output end of the temperature sensor 193 is embedded in the plug-in hole 192, and the conductive connector 191 includes a ring The conductive contact ring 1911 and a plurality of contact springs 1912 are circumferentially arranged on the inner wall of the conductive contact ring 1911. The conductive contact ring 1911 is fixedly arranged at the end of the plug hole 192. The free ends of the plurality of contact springs 1912 extend into the plug hole 192 and clamp and electrically connect one end of the temperature sensing terminal 16. The conductive connector 191 can be regarded as a docking terminal electrically connected to one end of the temperature sensing terminal 16 in the high-voltage jacket 12. In this embodiment, each conductive connector 191 is provided with two relative contact springs 1912.

[0051] After the temperature sensing circuit board 19 is installed into the shell along with the supporting seat 17, the end of the temperature sensing terminal 16 close to the temperature sensor 193 is inserted into the plug hole 192 and electrically connected to the conductive connector 191 to realize the electrical connection between the output end of the temperature sensor 193 and the temperature sensing terminal 16.

[0052] More specifically, in order to ensure reliable temperature transfer between the socket terminal 18 and the input end of the temperature sensor 193, as shown in FIG. Figures 5-6 As shown, in this embodiment, a mounting groove 172 is provided in the supporting seat 17, and the socket terminal 18 is mounted in the mounting groove 172. The side of the mounting groove 171 close to the mounting groove 172 is connected to the mounting groove 172. The thermal conductive connector 194 includes a thermal conductive layer 1941 laid on the temperature sensing circuit board 19 and a thermal conductive sheet 1942 fixed at one end on the temperature sensing circuit board 19. The thermal conductive layer 1941 is respectively connected to the input end of the temperature sensor 193 and the thermal conductive sheet 1942. The other end of the thermal conductive sheet 1942 is cantilevered into the mounting groove 172 and abuts against the socket terminal 18.

[0053] In this embodiment, the heat-conducting layer 1941 and the heat-conducting sheet 1942 are both made of metal, preferably copper, and the heat-conducting sheet 1942 can be fixedly connected to the heat-conducting layer 1941 by conventional fixing methods such as welding or riveting, so that the heat-conducting sheet 1942 is fixedly arranged on the temperature-sensing circuit board 19. In other embodiments, the heat-conducting connector can also be a heat-conducting device in the form of a heat-conducting silicone sheet, and the heat-conducting silicone sheet can be bonded to the temperature-sensing circuit board.

[0054] like Figure 5As shown in the figure, in this embodiment, one end of the socket terminal 18 facing the high-voltage plug 2 is plugged with a plugging reed piece 181 for electrically connecting with a preset plug terminal in the high-voltage plug 2. The plugging reed piece 181 is located inside the plugging pin, and one end of the plugging reed piece 181 away from the high-voltage plug 2 abuts against the carrier seat 17.

[0055] As Figures 7-9 shown, the embodiment of the present utility model further relates to a connection assembly, which includes a high-voltage plug 2, a low-voltage plug 4 connected to an external control system, and the above-mentioned integrated socket 1. Two first docking terminals 21 are arranged in the high-voltage plug 2, and two second docking terminals 41 are arranged in the low-voltage plug 4. After the high-voltage plug 2 and the low-voltage plug 4 are respectively plugged into the high-voltage sheath 12 and the low-voltage sheath 13 of the integrated socket 1, the first docking terminal 21 is electrically connected to one end of the signal transmission terminal extending into the high-voltage sheath 12, and the second docking terminal 41 is electrically connected to one end of the signal transmission terminal extending into the low-voltage sheath 13, so as to transmit electrical signals between the first docking terminal 21 and the second docking terminal 41 through the signal transmission terminal.

[0056] In this embodiment, the above-mentioned first docking terminal 21 and second docking terminal 41 constitute the corresponding docking terminals mentioned in the foregoing solution. And when the signal transmission terminal includes an interlock terminal 15, the above-mentioned first docking terminal 21 and second docking terminal 41 are both correspondingly connected to the interlock terminal 15, and the two first docking terminals 21 in the high-voltage plug 2 are short-circuited.

[0057] Of course, according to actual needs, in embodiments other than this embodiment, the number of the above-mentioned first docking terminal and second docking terminal can also be adaptively set to more than two, such as four.

[0058] In this embodiment, based on the setting of the function of monitoring the temperature of the internal terminals of the connector, such as the solution mentioned in the above-mentioned integrated socket 1, a temperature-sensing circuit board 19 is provided in the socket base 11. A temperature sensor 193 is integrated on the temperature-sensing circuit board 19. The input end of the temperature sensor 193 is connected with a heat-conducting connecting piece 194 abutting against the end face of the socket terminal 18, and the output end is connected with a temperature-sensing terminal 16 arranged in the socket base 11 and extending into the low-voltage sheath 13 at one end. The temperature-sensing terminal 16 is electrically connected to a corresponding third docking terminal 42 in the low-voltage plug 4. Among them, when the signal transmission terminal includes the temperature-sensing terminal 16, the third docking terminal 42 also constitutes the corresponding docking terminal mentioned in the foregoing solution.

[0059] During specific assembly, each signal transmission terminal has already formed an integral structure with the socket base 11. First, the temperature-sensing circuit board 19 with the heat-conducting connector 194, the conductive connector 191, and the temperature sensor 193 already set can be installed in the installation groove 171 of the carrier seat 17. Then, the socket terminal 18 is inserted into the insertion groove 172. Next, the carrier seat 17 is installed on the socket base 11. At this time, one end of the temperature-sensing terminal 16 is electrically connected to the conductive connector 191, and the heat-conducting connector 194 has also thermally connected the socket terminal 18 to the input end of the temperature sensor 193. After that, the integrated socket 1 is installed on the installation panel 3, and then the high-voltage plug 2 and the low-voltage plug 4 are respectively connected to the high-voltage sheath 12 and the low-voltage sheath 13. At this time, the interlock terminal 15, the first docking terminal 21, and the second docking terminal 41 form an interlock signal circuit, and the temperature-sensing terminal 16, the third docking terminal 42, and the temperature-sensing mechanism form a temperature signal circuit. Both the interlock signal circuit and the temperature signal circuit are connected to an external control system.

[0060] Although some specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and not for limiting the scope of the present invention. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An integrated socket, comprising a socket base, a socket terminal and a signal transmission mechanism, wherein a high-voltage sheath and a low-voltage sheath arranged at intervals are formed on the socket base, and the socket terminal is installed in the high-voltage sheath, characterized in that: The signal transmission mechanism comprises at least two signal transmission terminals fixedly arranged in the socket base, and one end of at least two of the signal transmission terminals extends into the high-voltage sheath and the other end extends into the low-voltage sheath.

2. An integrated socket as claimed in claim 1, characterized in that: The high-voltage sheath and the low-voltage sheath are located on the same side of the socket base.

3. An integrated socket as claimed in claim 1, characterized in that: At least a portion of the middle of the signal transmission terminal is embedded and injection-molded in the socket base.

4. An integrated socket as claimed in claim 1, characterized in that: Two ends of the signal transmission terminal are respectively located in the high-voltage sheath and the low-voltage sheath, and are configured as PIN needles electrically connected to the docking terminal.

5. An integrated socket as claimed in claim 1, characterized in that: An interlocking plug-in terminal is arranged in the high-voltage sheath, and the signal transmission terminal comprises at least two interlocking terminals, one end of the interlocking terminal is arranged in the interlocking plug-in terminal, and the other end is arranged in the low-voltage sheath.

6. The integrated socket according to claim 1, characterized in that: A temperature sensing mechanism connected to the socket terminal is arranged in the high-voltage sheath, and the signal transmission terminal includes at least two temperature sensing terminals, one end of the temperature sensing terminal is connected to the temperature sensing mechanism, and the other end is arranged in the low-voltage sheath.

7. An integrated socket as claimed in claim 6, characterized in that: The temperature sensing mechanism includes a temperature sensing circuit board arranged in the socket base, on which a temperature sensor is integrated. The input end of the temperature sensor is connected to a heat-conducting connector abutting the socket terminal, and the output end is electrically connected to an external control system through the temperature sensing terminal.

8. An integrated socket as claimed in claim 7, characterized in that: A bearing seat is detachably mounted on the socket base on the opposite side of the high-voltage sheath, and a mounting groove is provided on the end of the bearing seat facing the socket base. The temperature sensing circuit board is fixedly mounted in the mounting groove, and a plug hole is provided on the temperature sensing circuit board. A conductive connector electrically connected to the output end of the temperature sensor is embedded in the plug hole. After the temperature sensing circuit board is installed into the housing along with the bearing seat, an end portion of the temperature sensing terminal close to the temperature sensor is inserted into the plug hole and electrically connected to the conductive connector, so as to realize the electrical connection between the output end of the temperature sensor and the temperature sensing terminal.

9. An integrated socket as claimed in claim 8, characterized in that: A mounting groove is provided in the bearing seat, the socket terminal is mounted in the mounting groove, the side of the mounting groove close to the mounting groove is connected with the mounting groove, the thermally conductive connector includes a thermally conductive layer laid on the temperature sensing circuit board and a thermally conductive sheet fixedly provided at one end on the temperature sensing circuit board, the thermally conductive layer is respectively connected to the input end of the temperature sensor and the thermally conductive sheet, and the other end of the thermally conductive sheet is cantilevered into the mounting groove and abuts against the socket terminal.

10. A connection assembly, comprising a high voltage plug, a low voltage plug connected to an external control system and an integrated socket according to any one of claims 1 to 9, characterized in that: At least two first docking terminals are provided in the high-voltage plug, and at least two second docking terminals are provided in the low-voltage plug. After the high-voltage plug and the low-voltage plug are respectively plugged into the high-voltage sheath and the low-voltage sheath of the integrated socket, the first docking terminal is electrically connected to one end of the signal transmission terminal extending into the high-voltage sheath, and the second docking terminal is electrically connected to one end of the signal transmission terminal extending into the low-voltage sheath, so as to transmit electrical signals between the first docking terminal and the second docking terminal through the signal transmission terminal.

11. A connection assembly as described in claim 10, wherein a temperature-sensitive circuit board is also provided in the socket base, and a temperature sensor is integrated on the temperature-sensitive circuit board, the input end of the temperature sensor is connected to a heat-conductive connector abutting the end face of the socket terminal, and the output end is connected to a temperature-sensitive terminal provided in the socket base and one end of which extends into the low-voltage sheath, and the temperature-sensitive terminal is electrically connected to a third docking terminal correspondingly provided in the low-voltage plug.

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