High-voltage interlocking terminal, socket and plug

Abstract

The utility model discloses a high-voltage interlocking terminal, a socket and a plug. The high-voltage interlocking terminal comprises a main body, a wire spring terminal and a protective cover. The main body is provided with a wiring part connected with a cable, one side of the main body far away from the wiring part is provided with a mounting part, and one end of the mounting part far away from the wiring part is inwards provided with a mounting cavity. And the wire spring terminal is arranged in the mounting cavity. A containing cavity is inwards formed in the end, facing the main body, of the protective cover, the installation part is partially inserted into the containing cavity so that the outer wall of the installation cavity can be connected with the inner wall of the containing cavity, and an inserting hole is formed in the bottom wall of the containing cavity. According to the high-voltage interlocking terminal, the shock resistance of the high-voltage interlocking terminal can be enhanced, and the phenomenon of poor contact of the high-voltage interlocking terminal in the process of connecting the high-voltage interlocking terminal with a contact pin is prevented.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage connectors, and in particular to a high-voltage interlocking terminal, socket and plug. Background Technology

[0002] With the development of the automotive industry, the application of high-voltage and high-current connectors in the new energy industry is becoming more and more widespread. The trend of electrification is becoming more and more obvious, and the demand for high voltage and high current is intensifying. At the same time, higher requirements are placed on the transmission and connection stability of high-voltage interlock signal terminals. Utility Model Content

[0003] The main objective of this invention is to provide a high-voltage interlock terminal, comprising:

[0004] The main body has a connector for connecting to a cable, and a mounting portion is provided on the side of the main body away from the connector. The mounting portion has an inwardly located mounting cavity at the end away from the connector.

[0005] A spring-loaded terminal is disposed within the mounting cavity;

[0006] A protective cover has an inwardly accommodating cavity at one end facing the main body. The mounting portion is partially inserted into the accommodating cavity so that the outer wall of the mounting cavity and the inner wall of the accommodating cavity are connected. The bottom wall of the accommodating cavity has an insertion hole.

[0007] Optionally, in one embodiment of the present invention, the mounting portion is further provided with a plug-in cavity along the axial direction. The plug-in cavity is located at one end of the mounting cavity near the wiring portion. The plug-in cavity is connected to the mounting cavity and is coaxially arranged with the wire spring terminal. The diameter of the plug-in cavity is smaller than the diameter of the wire spring terminal.

[0008] Optionally, in one embodiment of the present invention, the outer wall of the end of the mounting part away from the wiring part is further provided with a stepped groove, and the protective cover is sleeved on the outer wall of the stepped groove and fixedly connected to the outer wall of the stepped groove.

[0009] Optionally, in one embodiment of the present invention, the protective cover is further provided with a guide hole along the axial direction. The guide hole is located at the end of the insertion hole away from the mounting cavity and communicates with the insertion hole. The diameter of the guide hole decreases along the direction closer to the mounting cavity.

[0010] Optionally, in one embodiment of the present invention, the minimum diameter of the guide hole is equal to the diameter of the insertion hole and equal to the diameter of the insertion cavity.

[0011] Optionally, in one embodiment of the present invention, the bottom wall of the accommodating cavity is further provided with a limiting end, and the end of the mounting part away from the wiring part abuts against the limiting end.

[0012] Optionally, in one embodiment of the present invention, a limiting part is provided circumferentially between the mounting part and the wiring part, and the limiting part is provided with a limiting groove.

[0013] Optionally, in one embodiment of the present invention, a guide portion is further provided on the outer wall between the limiting portion and the wiring portion. The guide portion includes a transition section and a guide section. The guide section is connected to the wiring portion. The transition section is located at the end of the guide section away from the wiring portion. The diameter of the guide section increases in the direction away from the wiring portion.

[0014] Optionally, in one embodiment of the present invention, the wiring part is further provided with a wiring hole along the axial direction, and the wiring hole is connected to a cable.

[0015] Optionally, in one embodiment of the present invention, the outer wall of the mounting cavity and the inner wall of the accommodating cavity are press-fitted together.

[0016] This utility model also provides a socket, which includes the high-voltage interlocking terminal described above.

[0017] This utility model also provides a socket, which has a housing, the housing including a head and a tail connected to the head, the head being used for plugging in, and the housing having the aforementioned high-voltage interlocking terminal.

[0018] Optionally, in one embodiment of the present invention, the head is provided with an inward cavity at the end away from the tail, the bottom wall of the cavity is provided with a plurality of connecting holes, the inner wall of the connecting holes is provided with abutting parts, and the abutting parts are engaged in the limiting part of the main body.

[0019] Optionally, in one embodiment of the present invention, the connecting hole includes a first connecting hole, a second connecting hole, and a third connecting hole connected in sequence. The abutting portion forms the second connecting hole, the end of the second connecting hole near the cavity forms the first connecting hole, and the end of the second connecting hole away from the cavity forms the third connecting hole.

[0020] Optionally, in one embodiment of the present invention, the mounting part is disposed in the first connecting hole, and the wiring part is disposed in the third connecting hole.

[0021] Optionally, in one embodiment of the present invention, epoxy resin adhesive is provided in the third connecting hole.

[0022] This utility model also provides a plug, which has a pin assembly and a pin terminal. The plug is used to connect with the aforementioned socket so that the pin terminal and the high-voltage interlock terminal are connected.

[0023] Optionally, in one embodiment of the present invention, the pin assembly includes an insulator and a U-shaped pin terminal. The insulator has a U-shaped hole, and the U-shaped pin terminal has a connecting end. The two ends of the connecting end are respectively connected to a first end and a second end. The first end and the second end are arranged in parallel. The U-shaped pin terminal is partially accommodated in the U-shaped hole, so that the side of the first end and the second end away from the connecting end extends out of the U-shaped hole.

[0024] This utility model of high-voltage interlock terminal enhances the shock resistance of the high-voltage interlock terminal by placing the spring terminal in the mounting cavity of the mounting part and limiting the spring terminal within the space formed by the bottom wall of the accommodating cavity and the mounting cavity through a protective cover, and prevents poor contact of the high-voltage interlock terminal during the connection with the pin. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of an embodiment of the high-voltage interlock terminal of this utility model;

[0027] Figure 2 This is a schematic diagram of the high-voltage interlock terminal and cable connection structure of this utility model;

[0028] Figure 3 for Figure 2 Cross-sectional view;

[0029] Figure 4 This is an exploded view of the high-voltage interlock terminal and cable of this utility model;

[0030] Figure 5 This is a plan view of an embodiment of the pin assembly of this utility model;

[0031] Figure 6 for Figure 5 Cross-sectional view;

[0032] Figure 7 This is an exploded structural diagram of an embodiment of the pin assembly of this utility model;

[0033] Figure 8 This is a schematic diagram of the pin assembly, high-voltage interlock terminal, and cable connection structure of this utility model;

[0034] Figure 9This is an exploded structural diagram of the pin assembly, high-voltage interlock terminal, and cable connection part of this utility model;

[0035] Figure 10 for Figure 8 Cross-sectional view;

[0036] Figure 11 This is a plan view of an embodiment of the socket of this utility model;

[0037] Figure 12 This is a cross-sectional view of an embodiment of the socket of this utility model;

[0038] Figure 13 This is a cross-sectional view of the connection between the socket and the high-voltage interlocking terminal of this utility model;

[0039] Figure 14 This is a plan view of an embodiment of the plug of this utility model;

[0040] Figure 15 This is a partial cross-sectional view of an embodiment of the plug of this utility model;

[0041] Figure 16 This is a partial cross-sectional view of the socket and plug of this utility model after they are connected.

[0042] Explanation of icon numbers:

[0043] 100. High-voltage interlock terminal; 11. Main body; 111. Mounting part; 1111. Mounting cavity; 1112. Plug-in cavity; 1113. Step groove; 112. Limiting part; 113. Guide part; 1131. Transition section; 1132. Guide section; 114. Wiring part; 1141. Wiring hole; 12. Spring wire terminal; 121. Protrusion; 13. Protective cover; 131. Guide hole; 132. Receiving cavity; 133. Plug-in hole; 134. Limiting end; 14. Wire Cable; 141, Conductor; 142, Outer Sheath; 200, Pin Assembly; 21, Pin Terminal; 211, First End; 212, Second End; 213, Connecting End; 22, Insulator; 221, U-shaped Hole; 300, Socket; 31, Housing; 32, Connecting Hole; 321, First Connecting Hole; 322, Second Connecting Hole; 323, Third Connecting Hole; 33, Abutment Part; 34, Cavity; 35, Head; 36, Tail; 400, Plug; a, Installation Direction.

[0044] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0045] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0046] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0047] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0048] With the development of the automotive industry, the application of high-voltage and high-current connectors in the new energy industry is becoming more and more widespread. The trend of electrification is becoming more and more obvious, and the demand for high voltage and high current is intensifying. At the same time, higher requirements are placed on the transmission and connection stability of high-voltage interlock signal terminals.

[0049] In view of this, the high-voltage interlock terminal of this utility model enhances the shock resistance of the high-voltage interlock terminal by setting the spring terminal in the mounting cavity of the mounting part and limiting the spring terminal in the space formed by the bottom wall of the accommodating cavity and the mounting cavity by the protective cover, and prevents poor contact of the high-voltage interlock terminal during the connection with the pin.

[0050] To better understand the above technical solution, a detailed explanation of the technical solution is provided below with reference to the accompanying drawings.

[0051] like Figure 1-16As shown, the high-voltage interlock terminal 100 includes a main body 11, a spring terminal 12, and a protective cover 13. The main body 11 has a wiring portion 114 for connecting to a cable 14. A mounting portion 111 is provided on the side of the main body 11 away from the wiring portion 114. The end of the mounting portion 111 away from the wiring portion 114 has an inwardly provided mounting cavity 1111. The spring terminal 12 is disposed in the mounting cavity 1111. The end of the protective cover 13 facing the main body 11 has an inwardly provided receiving cavity 132. The mounting portion 111 is partially inserted into the receiving cavity 132 so that the outer wall of the mounting cavity 1111 and the inner wall of the receiving cavity 132 are connected. The bottom wall of the receiving cavity 132 has a plug hole 133.

[0052] Understandably, the wiring portion 114 of the high-voltage interlock terminal 100 is connected to the cable 14, which has a conductor 141 and an outer sheath 142 covering the outer wall of the conductor 141. During installation, the outer sheath 142 near the main body 11 is peeled off to expose the conductor 141, and the conductor 141 is connected to the wiring portion 114, thereby transmitting electrical energy from the cable 14 to the main body 11, or from the main body 11 to the cable 14. The mounting portion 111 has an inwardly recessed mounting cavity 1111 at the end away from the wiring portion 114, and the spring wire terminal 12 is disposed in the mounting cavity 1111. The protective cover 13 has a receiving cavity 132 at the end facing the main body 11, and the mounting portion 111 is partially inserted into the receiving cavity 132 of the protective cover 13, so that the spring wire terminal 12 is accommodated within the area enclosed by the protective cover 13 and the mounting cavity 1111. The pin can be inserted into the spring terminal 12 through the insertion hole 133, thereby transferring electrical energy from the pin to the spring terminal 12, and then from the spring terminal 12 to the main body 11; or the electrical energy on the main body 11 can be transferred to the pin through the spring terminal 12, thus realizing electrical energy transfer. It is understood that the outer wall of the mounting cavity 1111 and the inner wall of the receiving cavity 132 can be connected in various ways, such as by crimping to connect and fix the protective cover 13 and the mounting part 111. Of course, they can also be fixed by adhesive bonding, welding, etc., which are not limited here. It is understood that by placing the spring terminal 12 in the mounting cavity 1111 of the mounting part 111, and by limiting the spring terminal 12 within the space formed by the bottom wall of the receiving cavity 132 and the mounting cavity 1111 through the protective cover 13, the shock resistance of the high-voltage interlock terminal 100 is enhanced, preventing poor contact during the connection between the high-voltage interlock terminal 100 and the pin. Understandably, the diameter of the insertion hole 133 is smaller than the diameter of the spring terminal 12, so as to form a limiting end 134 on the bottom wall of the receiving cavity 132, thereby limiting the spring terminal 12 between the bottom wall of the receiving cavity 132 and the mounting cavity 1111, preventing the spring terminal 12 from falling out of the insertion hole 133. Preferably, the end of the mounting part 111 away from the wiring part 114 abuts against the limiting end 134, thereby further improving the stability of the connection between the protective cover 13 and the mounting part 111.

[0053] Furthermore, in one embodiment of the present invention, the mounting portion 111 is further provided with a plug-in cavity 1112 along the axial direction. The plug-in cavity 1112 is located at one end of the mounting cavity 1111 near the wiring portion 114. The plug-in cavity 1112 is connected to the mounting cavity 1111 and is coaxially arranged with the wire spring terminal 12. The diameter of the plug-in cavity 1112 is smaller than the diameter of the wire spring terminal 12.

[0054] Understandably, by providing a insertion cavity 1112 within the mounting portion 111, after the pin is inserted into the spring terminal 12, the pin head continues to insert until it is fully inserted into the insertion cavity 1112. The diameter of the insertion cavity 1112 is smaller than the diameter of the spring terminal 12, thereby preventing the spring terminal 12 from moving into the insertion cavity 1112. Understandably, the diameter of the insertion cavity 1112 matches the diameter of the pin to facilitate insertion of the pin into the insertion cavity 1112. By providing the insertion cavity 1112, the radial movement of the pin head can be limited, preventing radial wobble of the pin.

[0055] Furthermore, in one embodiment of the present invention, the outer wall of the mounting part 111 away from the wiring part 114 is provided with a stepped groove 1113, and the protective cover 13 is sleeved on the outer wall of the stepped groove 1113 and fixedly connected to the outer wall of the stepped groove 1113.

[0056] Understandably, by providing a stepped groove 1113 on the mounting part 111, the protective cover 13 can be directly fitted onto the outer wall of the stepped groove 1113. This arrangement can reduce the diameter of the protective cover 13, making it easier to install the entire high-voltage interlock terminal 100.

[0057] Furthermore, in one embodiment of the present invention, the protective cover 13 is also provided with a guide hole 131 along the axial direction. The guide hole 131 is located at the end of the insertion hole 133 away from the mounting cavity 1111 and communicates with the insertion hole 133. The diameter of the guide hole 131 decreases along the direction close to the mounting cavity 1111.

[0058] Understandably, by setting the guide hole 131, the insertion direction of the pin can be guided and corrected to prevent the pin from being inserted crookedly.

[0059] Furthermore, in one embodiment of the present invention, the minimum diameter of the guide hole 131 is equal to the diameter of the insertion hole 133 and equal to the diameter of the insertion cavity 1112.

[0060] Understandably, the minimum diameter of the guide hole 131 is equal to the diameter of the insertion hole 133, and is also equal to the diameter of the insertion cavity 1112. Thus, the insertion hole 133 and the insertion cavity 1112 further prevent the pin from moving radially.

[0061] Furthermore, in one embodiment of the present invention, a limiting part 112 is provided in a ring between the mounting part 111 and the wiring part 114, and the limiting part 112 is provided with a limiting groove in a ring.

[0062] Understandably, when the main body and the socket 300 are installed and connected, the limiting groove of the limiting part 112 will cooperate with the abutment part 33 on the socket 300. The abutment part 33 is engaged in the limiting part 112, thereby preventing the main body 11 from moving along the axial direction and improving the stability of the connection between the main body 11 and the socket 300.

[0063] Furthermore, in one embodiment of the present invention, a guide portion 113 is provided on the outer wall between the limiting portion 112 and the wiring portion 114. The guide portion 113 includes a transition section 1131 and a guide section 1132. The guide section 1132 is connected to the wiring portion 114. The transition section 1131 is located at the end of the guide section 1132 away from the wiring portion 114. The diameter of the guide section 1132 increases in the direction away from the wiring portion 114.

[0064] Understandably, by providing the guide portion 113 and the guide section 1132 on the guide portion 113, when the high-voltage interlock terminal 100 is inserted into the connection hole 32 of the socket 300 along the installation direction a, the abutment portion 33 of the socket 300 can smoothly engage with the limiting portion 112 of the main body 11. Understandably, the diameter of the transition section 1131 is larger than the diameter of the limiting portion 112, and the diameter of the mounting portion 111 on the side near the limiting portion 112 is larger than the diameter of the limiting portion 112, thereby ensuring that the abutment portion 33 on the socket 300 can be confined in the limiting portion 112 and will not move axially.

[0065] Furthermore, in one embodiment of the present invention, the wiring part 114 is also provided with a wiring hole 1141 along the axial direction, and the wiring hole 1141 is connected to the cable 14.

[0066] Understandably, conductor 141 can be inserted into terminal hole 1141 and connected to the wall of terminal hole 1141 by means of crimping, interference fit, etc.

[0067] Preferably, the spring terminal 12 is further provided with a plurality of protrusions 121 along the circumferential direction, which abut against the cavity wall of the mounting cavity 1111 to facilitate the installation of the spring terminal 12.

[0068] This utility model also provides a socket 300, which has a housing 31. The housing 31 includes a head 35 and a tail 36 connected to the head 35. The head 35 is used for insertion into a plug 400. The housing 31 is provided with the aforementioned high-voltage interlock terminal 100. The specific structure of the high-voltage interlock terminal 100 of this application refers to the above embodiments. Since the high-voltage interlock terminal 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0069] Furthermore, in one embodiment of the present invention, a cavity 34 is provided inward at the end of the head 35 away from the tail 36, and a plurality of connecting holes 32 are provided on the bottom wall of the cavity 34. An abutment part 33 is protruding from the inner wall of the connecting hole 32, and the abutment part 33 is engaged in the limiting part 112 of the main body 11.

[0070] Understandably, the socket 300 has a cavity 34 and several connecting holes 32 communicating with the cavity 34. The inner wall of each connecting hole 32 has a protruding abutment portion 33, which can engage with the limiting portion 112 of the main body 11 to connect the high-voltage interlock terminal 100 to the socket 300. When the pin and the high-voltage interlock terminal 100 are inserted, the pin penetrates into the cavity 34 and engages with the high-voltage interlock terminal 100 installed in the connecting hole 32 to achieve power transmission. Understandably, the diameter of the abutment portion 33 is smaller than the diameter of the connecting hole 32, and the diameter of the abutment portion 33 matches the diameter of the limiting portion 112.

[0071] Furthermore, in one embodiment of the present invention, the connecting hole 32 includes a first connecting hole 321, a second connecting hole 322, and a third connecting hole 323 connected in sequence. The abutting portion 33 forms the second connecting hole 322. The end of the second connecting hole 322 near the cavity 34 forms the first connecting hole 321, and the end of the second connecting hole 322 away from the cavity 34 forms the third connecting hole 323.

[0072] Preferably, the mounting part 111 is disposed in the first connecting hole 321, and the wiring part 114 is disposed in the third connecting hole 323.

[0073] Understandably, by placing the mounting part 111 inside the first connection hole 321 and the wiring part 114 inside the third connection hole 323, the entire body 11 is located inside the connection hole 32, thereby improving the connection stability between the high-voltage interlock terminal 100 and the socket 300.

[0074] Furthermore, in one embodiment of this utility model, epoxy resin adhesive is provided in the third connecting hole 323. It is understood that by providing epoxy resin adhesive in the third connecting hole 323, the epoxy resin adhesive, after curing, can ensure a stable connection between the third connecting hole and the main body 11.

[0075] This utility model also provides a plug 400, which has a pin assembly 200 and a pin terminal 21. The plug 400 is used to connect with the aforementioned socket 300, so that the pin terminal 21 and the high-voltage interlock terminal 100 are connected. The specific structure of the plug 400 of this application refers to the above embodiments. Since this plug 400 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0076] Furthermore, in one embodiment of the present invention, the pin assembly 200 includes an insulator 22 and a U-shaped pin terminal 21. The insulator 22 has a U-shaped hole 221. The U-shaped pin terminal 21 has a connecting end 213. The two ends of the connecting end 213 are respectively connected to a first end 211 and a second end 212. The first end 211 and the second end 212 are arranged in parallel. The U-shaped pin terminal 21 is partially accommodated in the U-shaped hole 221 so that the side of the first end 211 and the second end 212 away from the connecting end 213 extends out of the U-shaped hole.

[0077] Understandably, by placing the U-shaped pin terminal 21 into the U-shaped hole 221 in the insulator 22, the U-shaped pin terminal 21 is fixed and installed, and the insulating connection between the two is ensured. Understandably, by molding the U-shaped pin with plastic coating on the insulator 22, a stable connection between the U-shaped pin terminal 21 and the insulator 22 is achieved, ensuring that the two remain relatively stationary during vehicle operation.

[0078] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

[0079] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A high voltage interlock terminal (100) characterized by, The utility model relates to a cable terminal, including: A main body (11) has the terminal (114) of connection with cable (14), the side of main body (11) away from terminal (114) is equipped with mounting portion (111), and the one end of mounting portion (111) away from terminal (114) is equipped with mounting cavity (1111) to the inside; Wire spring terminal (12) is equipped in mounting cavity (1111); Protective cover (13) is equipped with accommodating cavity (132) to the inside on one end of main body (11) side, and mounting portion (111) is partially inserted in accommodating cavity (132), so that the outer wall of mounting cavity (1111) and the inner wall of accommodating cavity (132) are connected, and the bottom wall of accommodating cavity (132) is equipped with insertion hole (133).

2. A high voltage interlock terminal (100) as claimed in claim 1, characterized in that, The one end of mounting portion (111) is equipped with insertion cavity (1112) along the axial direction, and insertion cavity (1112) is equipped on the one end of mounting cavity (1111) close to terminal (114), and insertion cavity (1112) is communicated with mounting cavity (1111) and is coaxially arranged with wire spring terminal (12), and the diameter of insertion cavity (1112) is less than the diameter of wire spring terminal (12).

3. A high voltage interlock terminal (100) as claimed in claim 2, characterized in that The outer wall of the one end of mounting portion (111) away from terminal (114) is equipped with step groove (1113), and protective cover (13) is sleeved on the outer wall of step groove (1113) and is fixedly connected with the outer wall of step groove (1113).

4. A high voltage interlock terminal (100) as claimed in claim 3, characterized in that Protective cover (13) is further equipped with guide hole (131) along the axial direction, and guide hole (131) is located on the one end of insertion hole (133) away from mounting cavity (1111) and is communicated with insertion hole (133), and the diameter of guide hole (131) decreases along the direction close to mounting cavity (1111).

5. A high voltage interlock terminal (100) as claimed in claim 4, characterized in that The minimum diameter of guide hole (131) is equal to the diameter of insertion hole (133) and the diameter of insertion cavity (1112).

6. A high voltage interlock terminal (100) as claimed in claim 5, characterized in that The bottom wall of accommodating cavity (132) is further equipped with limiting end (134), and the one end of mounting portion (111) away from terminal (114) is abutted with limiting end (134).

7. A high voltage interlock terminal (100) as claimed in claim 6, characterized in that Limiting portion (112) is annularly arranged between mounting portion (111) and terminal (114), and limiting portion (112) is annularly equipped with limiting groove.

8. A high voltage interlock terminal (100) as claimed in claim 7, characterized in that The outer wall between limiting portion (112) and terminal (114) is further equipped with guide portion (113), and guide portion (113) includes transition section (1131) and guide section (1132), guide section (1132) is connected with terminal (114), transition section (1131) is located on the one end of guide section (1132) away from terminal (114), and the diameter of guide section (1132) increases along the direction away from terminal (114).

9. A high voltage interlock terminal (100) as claimed in claim 8, characterized in that Terminal (114) is further equipped with terminal hole (1141) along the axial direction, and terminal hole (1141) is connected with cable (14).

10. A high voltage interlock terminal (100) as claimed in claim 1, characterized in that, The outer wall of the mounting cavity (1111) and the inner wall of the accommodating cavity (132) are press-connected.

11. A socket (300) characterised in that, The socket (300) has a shell (31) comprising a head (35) and a tail (36) connected with the head (35), the head (35) is used for plugging with the plug (400), and the shell (31) is internally provided with the high-voltage interlocking terminal (100) as claimed in any one of claims 1-10.

12. A socket (300) as claimed in claim 11, characterised in that, The head (35) is internally provided with a cavity (34) at one end away from the tail (36), the bottom wall of the cavity (34) is provided with a plurality of connecting holes (32), the inner wall of the connecting hole (32) is protrudingly provided with an abutting portion (33), and the abutting portion (33) is clamped in the limiting portion (112) of the main body (11).

13. A socket (300) as claimed in claim 12, characterised in that, The connecting hole (32) comprises a first connecting hole (321), a second connecting hole (322) and a third connecting hole (323) which are sequentially communicated, the abutting portion (33) forms the second connecting hole (322), one end of the second connecting hole (322) close to the cavity (34) forms the first connecting hole (321), and one end of the second connecting hole (322) away from the cavity (34) forms the third connecting hole (323).

14. A socket according to claim 13, wherein The mounting portion (111) is arranged in the first connecting hole (321), and the wiring portion (114) is arranged in the third connecting hole (323).

15. A socket according to claim 14, wherein The third connecting hole (323) is internally provided with epoxy resin glue.

16. A plug (400) characterized by The plug (400) is provided with a pin assembly (200), the pin assembly (200) is provided with a pin terminal (21), and the plug (400) is used for plugging with the socket (300) as claimed in any one of claims 11-15, so that the pin terminal (21) is plugged with the high-voltage interlocking terminal (100).

17. A plug (400) as claimed in claim 16, characterized in that The pin assembly (200) comprises an insulator (22) and a U-shaped pin terminal (21), the insulator (22) is provided with a U-shaped hole (221), the U-shaped pin terminal (21) has a connecting end (213), two ends of the connecting end (213) are respectively connected with a first end (211) and a second end (212), the first end (211) and the second end (212) are arranged in parallel, and the U-shaped pin terminal (21) is partially accommodated in the U-shaped hole (221), so that the first end (211) and the second end (212) extend out of the U-shaped hole (221) on the side away from the connecting end (213).

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