High-voltage interlocking socket

Abstract

The utility model relates to the field of connectors, and discloses a high-voltage interlocking socket, which comprises an insulator, a high-voltage terminal and an interlocking terminal, and is characterized in that a second mounting cavity is formed in the insulator along the plugging direction; the interlocking terminal comprises a conductive part and a protection part arranged on the conductive part in a sleeving mode, a second insertion cavity is formed in the conductive part in the insertion direction and communicates with the second installation cavity, a first limiting structure is arranged on the conductive part, and a second limiting structure is arranged on the protection part. The interlocking terminal is divided into the conductive part and the protection part, so that the protection part is matched with the first limiting structure to protect the conductive part and limit the protection part to move towards one side of the second surface of the insulator in the plugging direction, and the conductive part is used for being in conductive connection with the butt-joint interlocking terminal and is connected with a cable at the same time. And meanwhile, the conductive part is matched with the second limiting structure to limit the conductive part to move towards one side of the first strip surface of the insulator along the plugging direction, so that the interlocking terminal can be locked in the second mounting cavity after being mounted. When the plug is pulled out of the socket, the interlocking terminal is prevented from being brought out by the butt joint interlocking terminal to influence the use and current conduction of the socket.

Description

Technical Field

[0001] The utility model relates to the field of connectors, in particular to a high-voltage interlocking socket. Background Art

[0002] The manual maintenance switch (MSD) is a high-voltage connector with a fuse. When a new energy electric vehicle is undergoing vehicle maintenance, in order to ensure the safety of both the vehicle and the driver, the power supply of the high-voltage system is disconnected by pulling out the manual maintenance switch. It can achieve electrical isolation of the high-voltage system and also provide short-circuit protection.

[0003] The manual maintenance switch is composed of a plug and a socket, and the interlocking terminal and the high-voltage terminal are both used as electrical signal connection conduction elements in the socket, and are arranged inside the shell of the socket, and are used to connect with the docking high-voltage terminal and the docking interlocking terminal in the plug to realize the transmission of electrical signals. In the prior art, when installing the interlocking terminal for high-voltage interlocking, a cavity is opened on the insulator, and then the interlocking terminal is inserted into the corresponding cavity. However, when using the manual maintenance switch, there is a behavior of manually unplugging the plug and the socket. When unplugging the plug and the socket, the docking interlocking terminal docked with the interlocking terminal will pull the interlocking terminal toward the outside of the corresponding cavity during the unplugging process, which will cause the interlocking terminal to gradually detach from the cavity and affect the use of the socket. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a high-voltage interlocking socket to solve the problem that the interlocking terminal is not firmly installed and is easy to separate from the insulator.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a high-voltage interlocking socket including an insulator, a high-voltage terminal installed on the insulator and an interlocking terminal installed on the insulator, wherein a second installation cavity is provided in the insulator along the plug-in direction, and the second installation cavity penetrates the first surface and the second surface of the insulator along the plug-in direction; the interlocking terminal includes a conductive part and a protective part sleeved on the conductive part, and a second plug-in cavity for the mating interlocking terminal to penetrate and be conductively connected is provided on the conductive part along the plug-in direction, and the second plug-in cavity is connected to the second installation cavity, and a first limiting structure for limiting its movement toward the second surface of the insulator along the plug-in direction is provided on the protective part, and a second limiting structure for limiting its movement toward the first surface of the insulator along the plug-in direction is provided on the conductive part. After the conductive part and the protective part are both installed in the second installation cavity, the cooperation of the first limiting structure and the second limiting structure limits the movement of the interlocking terminal, and after the mating interlocking terminal is inserted into the second plug-in cavity and needs to be plugged in and unplugged, the interlocking terminal is prevented from being separated from the second plug-in cavity, thereby ensuring the normal use of the entire socket.

[0006] Furthermore, the high-voltage terminal includes a connecting portion and a mating portion connected to the connecting portion and inserted into the insulator to be plugged and mated with the docking electrical connector, the mating portion including two first mating ends arranged opposite to each other, a first plug-in cavity exposed to the first surface of the insulator along the plug-in direction is formed between the two first mating ends; a plurality of first contact portions are provided on the ends of the two first mating ends away from the connecting portion along the plug-in direction, and the plurality of first contact portions are spaced apart along the length direction of the first mating ends; a second contact portion is provided between each two adjacent first contact portions, and each second contact portion is independent of the corresponding first contact portion, so as to increase the contact area, improve the conductivity, and reduce the resistance and energy consumption.

[0007] Furthermore, a first installation cavity is formed in the insulator along the plug-in direction, and a first insertion port is opened on the first surface of the insulator along the plug-in direction, which is connected to the first installation cavity and allows an external high-voltage terminal to pass through. A first end of the connecting portion extends into the first installation cavity, and a second end passes through the second surface of the insulator to be electrically connected to an electronic component or a circuit board. The first mating end is located in the first installation cavity; both of the first mating ends include a first connecting plate connected to the first end of the connecting portion and a plurality of first elastic arms spaced apart along the length direction of the first connecting plate. The first insertion cavity is formed by the first elastic arms and the first connecting plate and is connected to the first insertion port along the plug-in direction. Each of the first elastic arms and the first connecting plate is connected to the first insertion port along the plug-in direction. The arms are all extended from the first connecting plate along the plug-in direction away from the connecting portion, and the first contact portions are formed one by one at one end of the first elastic arms away from the first connecting plate; the first elastic arms all include a first elastic section extending from the first connecting plate along the plug-in direction and arranged inwardly inclined along a width direction, a first bent section bent outwardly along the width direction from the first elastic section, and a second elastic section arranged outwardly inclined along the width direction from the first bent section, the inner side surface of the first bent section is defined as the first contact portion for the docking high-voltage terminal to penetrate therein, and the first bent section is used to squeeze the docking high-voltage terminal to realize the transmission of electrical signals, and is also used to contact the docking high-voltage terminal to increase the contact area between the high-voltage terminals.

[0008] Furthermore, the mating portion also includes two second mating ends located in the first mounting cavity and arranged opposite to each other, the two second mating ends are respectively attached to the outer side surfaces of the two first mating ends; the two second mating ends each include a second connecting plate connected to the first connecting plate and a plurality of second elastic arms spaced along the length direction of the second connecting plate corresponding to each adjacent two first elastic arms, each second elastic arm extending from the second connecting plate along the plug-in direction away from the connecting portion, and a plurality of second contact portions are formed one by one at one end of the plurality of second elastic arms away from the second connecting plate to support the first mating end while increasing The contact area with the docking high-voltage terminal improves the conductive performance; the plurality of second elastic arms each include a third elastic section extending from the second connecting plate along the plug-in direction and arranged obliquely inwardly along the width direction, a second bent section bent inwardly along the width direction from the third elastic section, a third bent section bent outwardly along the width direction from the second bent section, and a fourth elastic section extending from the third bent section along a direction parallel to the length of the second elastic section and located between two adjacent first elastic arms, the inner side surfaces of the third bent section and the fourth elastic section are defined as the second contact portion, so that the third bent section can be used to contact the docking high-voltage terminal and elastically support the docking high-voltage terminal at the same time.

[0009] The mating portion also includes two supporting ends located in the first mounting cavity and arranged opposite to each other, and the two supporting ends are respectively attached to the outer side surfaces of the two second mating ends; the two supporting ends each include a third connecting plate connected to the second connecting plate and a plurality of elastic supporting arms spaced along the length direction of the third connecting plate and corresponding to each adjacent second elastic arm, each of the elastic supporting arms extending from the third connecting plate away from the connecting portion along the plug-in direction to support the first elastic arm and provide a certain degree of elastic compensation to the first elastic arm; a plurality of supporting portions are provided on one end of each of the elastic supporting arms away from the connecting portion along the plug-in direction, and the plurality of supporting portions are respectively used to support each first elastic segment, so as to provide support to the first elastic segment without affecting the first bending segment and the first The elastic support arm comprises a first support segment extending from the third connecting plate along the length direction of the first elastic arm and fitted to the second connecting plate, a fourth bent segment bent inwardly along the width direction from the first support segment, a second support segment extending obliquely inwardly along the width direction from the fourth bent segment, a fifth bent segment bent outwardly along the width direction from the second support segment and pressed against the first elastic segment, and a third support segment extending obliquely outwardly along the width direction from the fifth bent segment and toward one side of the second elastic segment. The inner side surface of the fifth bent segment is defined as the support portion, which supports the first elastic arm with a smaller contact area, thereby reducing the influence on the elastic fit between the first elastic arm and the connecting high-voltage terminal and compensating for the elastic force of the first elastic arm.

[0010] Furthermore, a second insertion port connected to the first installation cavity is opened along the plug-in direction on the second surface of the insulator, and the first end of the connecting part is inserted into the second insertion port to limit the movement of the entire high-voltage terminal in the width direction; the second connecting plate extends from the side of the connecting part to the end of the first elastic arm close to the first bending section, so that the side of the second connecting plate away from the connecting part is located between the first elastic section and the first supporting section to increase the clamping force.

[0011] Furthermore, a third insertion port connected to the second installation cavity and for the external docking interlocking terminal to pass through is provided on the first surface of the insulator along the plug-in direction, the conductive part and the protective part are both installed in the second installation cavity, the second plug-in cavity is connected to the third insertion port along the plug-in direction, and a fourth insertion port for the docking interlocking terminal to pass through is provided on the portion of the protective part opposite to the third insertion port, so that the docking interlocking terminal can pass through the third insertion port and the fourth insertion port at one time until it is tightly fitted in the second insertion cavity and plug-fitted with the conductive part to achieve low-voltage conduction.

[0012] Furthermore, the second mounting cavity is connected in sequence from the first surface of the insulator toward the second surface along the plug-in direction to form a first mounting section, a second mounting section and a third mounting section, the inner diameter of the second mounting section is smaller than the inner diameters of the first mounting section and the third mounting section so that the intersection of the first mounting section and the second mounting section and the intersection of the second mounting section and the third mounting section form a first step surface and a second step surface respectively, so that the entire mounting cavity presents a cavity structure that is wide at both ends and narrow in the middle; the protective part includes a sleeve in the shape of a hollow circular tube, and the sleeve includes a first barrel section that is sequentially connected and penetrates into the first mounting section, a second barrel section that is penetrated into the second mounting section, and a third barrel section that is penetrated into the third mounting section, the fourth plug-in port is formed on the end of the first barrel section away from the second barrel section, and the fifth plug-in port for the conductive part to movably pass through is formed on the end of the third barrel section away from the first barrel section along the plug-in direction, and a through sleeve is opened on the side wall of the first barrel section along its radial direction. The cam is an assembly of a plurality of first and second camshafts, each of which is adapted to engage with the first and second cams and to engage with the second cams when the cams are engaged.

[0013] Furthermore, the conductive part includes a conductive end in the shape of a hollow tube that is inserted into the sleeve and a connecting end that is connected to the side of the conductive end away from the sleeve; the conductive end includes a first conductive segment that gradually widens along the plug-in direction toward the connecting end to have a small end and a large end, and a second conductive segment whose two ends are respectively connected to the connecting end and the large end of the first conductive segment, the first conductive segment is inserted into the first barrel segment, the outer diameter of the second conductive segment is consistent with the large end and is inserted into the second barrel segment and the third barrel segment, the inner cavity of the first conductive segment and the second conductive segment is defined as the second plug-in cavity, the second plug-in cavity passes through the first conductive segment and the second conductive segment along the plug-in direction, and at least one slot that passes through the end of the first conductive segment away from the connecting end is provided along the plug-in direction, and the slot passes through the first conductive segment along the radial direction of the conductive end, so that the first conductive segment can be connected through the slot. The second conductive segment is provided with a second slit having one end connected to one of the slots and the other end passing through the connecting end. The second slit radially passes through the second conductive segment to connect the second plug-in cavity, so that the entire conductive end can be opened and closed to contract or stretch so that it can be installed in the sleeve and also fit tightly with the sleeve. The connecting end is located outside the sleeve and inside the third mounting section, and an enclosing section for the cable to pass through and fit tightly with the cable is extended on the connecting end. When the docking interlocking terminal is inserted into the second plug-in cavity, the second conductive segment fits tightly with the inner wall of the second barrel section, and the inner wall of the second barrel section fits tightly with the second mounting section, thereby completing the tight fit between the interlocking terminal and the second mounting cavity and the tight fit between the interlocking terminal and the docking interlocking terminal, making it more secure.

[0014] Furthermore, a second limiting plate with an outward bending arc is formed on the side wall of the conductive end, and a through hole is provided on the side wall of the third barrel section at a position corresponding to the second limiting plate for the second limiting plate to pass through and be clamped therein. The second limiting plate is used to limit the third barrel section from penetrating into the second mounting section, and the second limiting plate is defined as the second limiting structure, thereby limiting the entire conductive end from moving toward the first surface side of the insulator to prevent the conductive end from being moved away from the second mounting cavity by the docking interlocking terminal.

[0015] The high-voltage interlocking socket of the utility model has at least the following beneficial effects: by dividing the interlocking terminal into a conductive part and a protective part, the protective part cooperates with the first limiting structure to protect the conductive part while limiting the protective part from moving toward the second surface of the insulator along the plug-in direction, and the conductive part is used to be conductively connected to the mating interlocking terminal and connected to the cable at the same time, so as to realize the circuit conduction of the manual maintenance switch. At the same time, the conductive part cooperates with the second limiting structure to limit the conductive part from moving toward the first surface of the insulator along the plug-in direction, so that the interlocking terminal can be locked in the second installation cavity after installation is completed, so as to prevent the mating interlocking terminal from bringing the interlocking terminal out when the plug is pulled out of the socket, thereby affecting the use of the socket and current conduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 It is a structural schematic diagram of a high-voltage interlocking socket of the utility model;

[0018] Figure 2 It is a top view of the high voltage interlock socket of the utility model;

[0019] Figure 3 for Figure 2 Cross-sectional view along AA direction;

[0020] Figure 4 for Figure 2 Cross-sectional view along direction BB;

[0021] Figure 5 for Figure 4 An enlarged view of section C is shown;

[0022] Figure 6 It is an exploded view of the high voltage interlocking socket of the utility model;

[0023] Figure 7 It is a structural schematic diagram of the interlocking terminal of the utility model;

[0024] Figure 8 It is an exploded view of the interlocking terminal of the utility model;

[0025] Fig. 9 It is a structural schematic diagram of the high voltage terminal of the utility model;

[0026] Fig.10 It is an exploded view of the high voltage terminal of the utility model;

[0027] Fig.11 for Fig.10 An enlarged view of portion D is shown.

[0028] The meanings of the symbols in the accompanying drawings are:

[0029] Insulator-1; first surface-1a; second surface-1b; support plate-11; support surface-111; main body-12; sealing ring-13; metal ring-14; connecting base-15; first installation cavity-16; second installation cavity-17; first installation section-171; second installation section-172; third installation section-173; first step surface-174; second step surface-175; first insertion port-181; second insertion port-182; third insertion port-183; sixth insertion port-184; limit groove-185; glue reduction groove-19;

[0030] High voltage terminal-2; connecting part-21; first end-211; second end-212; mounting hole-213; bolt-214; matching part-22; bonding plate-22a; curved plate-22b; first matching end-221; first connecting plate-2211; first elastic arm-2212; first elastic section-22121; first bending section-22122; second elastic section-22123; first contact part-2213; second matching end-222; second connecting plate-2221; second elastic arm -2222; third elastic section -22221; second bending section -22222; third bending section -22223; fourth elastic section -22224; second contact portion -2223; support end -223; third connecting plate -2231; elastic support arm -2232; first support section -22321; fourth bending section -22322; second support section -22323; fifth bending section -22324; third support section -22325; support portion -2233; first plug-in cavity -23;

[0031] Interlocking terminal 3; protective part 31; sleeve 311; first barrel section 3111; second barrel section 3112; third barrel section 3113; fourth insertion port 3114; fifth insertion port 3115; movable cavity 3116; first slit 3117; wide-mouth section 3118; perforation 3119; first limiting plate 312; conductive part 32; conductive end 321; first conductive segment 3211; second conductive segment 3212; slot 3213; second slit 3214; second limiting plate 3215; connecting end 322; surrounding section 3221; first surrounding plate 32211; second surrounding plate 32212; second plug-in cavity 33. DETAILED DESCRIPTION

[0032] The utility model will be further described below in conjunction with the accompanying drawings.

[0033] like Figures 1 to 11As shown, the high-voltage interlocking socket of the utility model comprises an insulator 1 made of insulating material, a high-voltage terminal 2 installed on the insulator 1, and an interlocking terminal 3 installed on the insulator 1. The insulator 1 is used to carry the high-voltage terminal 2 and the interlocking terminal 3, so that the plug and the socket can be plugged in and out by holding the insulator 1; the high-voltage terminal 2 and the interlocking terminal 3 are both made of conductive material, the high-voltage terminal 2 is used to be plugged and connected with the butt high-voltage terminal of the plug to realize high-voltage current transmission, and the interlocking terminal 3 is used to be plugged and connected with the butt interlocking terminal of the plug to realize low-voltage current transmission, thereby realizing high-voltage interlocking. Normally, the interlocking terminal 3 is shorter than the high-voltage terminal 2, and the high-voltage terminal 2 is longer than the interlocking terminal 3. When the plug and the socket are connected, the high-voltage terminal 2 is first connected to the mating high-voltage terminal, and then the interlocking terminal 3 is connected to the mating interlocking terminal. For this reason, when the interlocking terminal 3 is connected and conductive with the mating interlocking terminal, the high-voltage terminal 2 must have been connected and conductive with the mating high-voltage terminal, thereby monitoring the status of high-voltage components, wires and connectors through the low-voltage circuit, identifying abnormal disconnection of the high-voltage circuit, thereby cutting off the high-voltage power of the system and protecting personnel safety.

[0034] The insulator 1 is made of plastic. The insulator 1 includes a square support plate 11 and a main body 12 connected to one side of the support plate 11 and having a rectangular structure. The main body 12 is coaxially distributed with the support plate 11. The side of the support plate 11 connected to the main body 12 is the support surface 111. After the high-voltage terminal 2 is plugged into the butt high-voltage terminal of the plug and after the interlocking terminal 3 is plugged into the butt interlocking terminal of the plug, the plug sleeve is arranged on the main body 12 and the side close to the support plate 11 is pressed against the support surface 111 to achieve the butt connection between the plug and the socket. In order to ensure the sealing and waterproofness between the plug and the socket, a sealing ring 13 is embedded on the support surface 111, and the sealing is wound around the outer periphery of the main body 12. A corresponding card slot is arranged at the position corresponding to the sealing ring 13 on the side of the plug facing the support surface 111. One half of the sealing ring 13 is embedded in the support surface 111, and the other half is clamped in the card slot when the plug and the socket are butt connected to achieve the sealing between the plug and the socket. Positioning grooves are formed on the support surface 111 and at the four corners along a plugging direction. A metal ring 14 in the shape of a circular ring and coaxial with the positioning groove is installed in the positioning groove to increase the strength of the positioning groove. The four positioning grooves are all located on the inner side of the sealing ring 13. A bolt column adapted to be inserted therein is provided at the position corresponding to the metal ring 14 on the plug. In order to facilitate the installation of the high-voltage terminal 2 on the insulator 1, a connecting base 15 is clamped or plugged on the side of the support plate 11 facing away from the main body 12. The material of the connecting base 15 is the same as that of the insulator 1 and is a part of the insulator 1. The connecting base 15 includes an outer ring for surrounding the support plate 11 and a retaining edge formed on the side of the outer ring away from the support plate 11. After the outer ring is sleeved on the support plate 11, the retaining edge abuts against the side of the support plate 11 facing away from the support surface 111. A protrusion is formed on the side of the support plate 11 facing away from the support surface 111 along the plug-in direction toward the side away from the support surface 111, and a plug-in block that plugs with the protrusion is provided at the position between the ribs and directly opposite to the protrusion. The plug-in is achieved by providing mutually adapted slots and protruding blocks on the protrusion and the plug-in block, and the plug-in block corresponds to the interface setting electrically connected thereto. It should be noted that the side of the main body 12 facing away from the support plate 11 is defined as the first surface 1a of the insulator 1, and the side of the entire connecting base 15 facing away from the support plate 11 is defined as the second surface 1b of the insulator 1, and the axial direction of the main body 12, the support plate 11 and the connecting base 15 is regarded as the plug-in direction. A card slot is provided on the outer wall of the main body 12 for the card block on the plug to be inserted into, and the card slot and other structures on the outer wall of the main body 12 are all prior art and will not be repeated here.A first installation cavity 16 for installing the high-voltage terminal 2 and a second installation cavity 17 for installing the interlocking terminal 3 are provided in the main body 12 along the plugging direction. In order to maintain stability, two first installation cavities 16 and two second installation cavities 17 are provided, and the two first installation cavities 16 are provided on both sides, and the two second installation cavities 17 are located between the two first installation cavities 16. The first surface 1a of the insulator 12 is recessed toward the side of the support plate 11 to form a cavity, and a corresponding protrusion adapted thereto is provided on the plug, and the inner wall of the cavity on one side close to the support plate 11 is further defined as the first surface 1a of the insulator 1. One end of the first installation cavity 16 close to the first surface 1a of the insulator 1 passes through the first surface 1a of the insulator 1 along the plug-in direction to form a first plug-in port 181, and one end of the first installation cavity 16 close to the second surface 1b passes through the second surface 1b of the insulator 1 along the plug-in direction to form a second plug-in port 182. The first plug-in port 181 is used for the high-voltage terminal 2 to pass through it. One end of the high-voltage terminal 2 is passed through the first installation cavity 16, and the other end of the high-voltage terminal 2 passes through the second surface 1b of the insulator 1 through the second plug-in port 182 to facilitate conductive connection with the cable. A "mouth"-shaped glue reduction groove 19 is formed in the first surface 1a of the insulator 1 and at a position opposite to the second installation cavity 17 along the plug-in direction. The part enclosed in the glue reduction groove 19 is opposite to the two second installation cavities 17 along the plug-in direction to achieve the purpose of glue reduction. The side of the second installation cavity 17 close to the first surface 1a passes through the first surface 1a along the plug-in direction to form a third plug-in port 183, which is cylindrical and has a diameter greater than the diameter of the mating interlocking terminal so that the mating interlocking terminal 3 can pass through the third plug-in port 183. The side of the second installation groove close to the second surface 1b passes through the second surface 1b along the plug-in direction to form a sixth plug-in port 184, and the cable connected to the interlocking terminal 3 passes through the sixth plug-in port 184 into the second installation cavity 17 to connect to the interlocking terminal 3, thereby realizing circuit conduction.

[0035] like Fig. 9 , Fig.10 and Fig.11 As shown, in this embodiment, the high-voltage terminal 2 includes a connecting portion 21 and a mating portion 22 connected to the connecting portion 21 and plugged into and mated with the mating high-voltage terminal. The connecting portion 21 and the mating portion 22 are both made of conductive materials. The connecting portion 21 is used to connect to the insulator 1 of the connector, and the mating portion 22 is used to realize electrical signal connection with the mating high-voltage terminal.

[0036] In this embodiment, the connection part 21 includes a first end 211 and a second end 212 which are L-shaped and perpendicular to each other. The first end 211 and the second end 212 are integrally formed and made of conductive material. The second end 212 is perpendicular to the plug-in direction, and the first end 211 is parallel to the plug-in direction so as to be inserted into the first installation cavity 16. A mounting hole 213 is provided through the second end 212 along the plug-in direction. The connection part 21 is installed on the insulator 1 by using a bolt 214 after passing through the mounting hole 213. A cavity for installing the first end 211 is provided at a position on the insulator 1 corresponding to the first end 211. A through slot is provided on the connection base 15 for the second end 212 of the connection part 21 to pass through. After passing through the second installation cavity 17, the connection part 21 is bent toward the through slot to form the second end 212. The through slot is defined as the second insertion port 182 of the insulator 1. At the position of the support plate 11 along the plug-in direction, which is opposite to the mounting hole 213, a limiting groove 185 is formed in the plug-in direction for the head of the bolt 214 to penetrate therein and clamp the head of the bolt 214. During installation, firstly, the second end 212 of the connecting portion 21 is connected to the corresponding circuit board through the bolt 214, and the wire core of the corresponding high-voltage cable is clamped between the head of the bolt 214 and the second end 212, so that the head of the bolt 214 clamps the wire core to the second end 212 to realize the conduction between the cable and the high-voltage terminal 2, and then the connecting base 15 is sleeved on the support plate 11, and the head of the bolt 214 is clamped in the limiting groove 185 to complete the connection between the circuit board and the insulator 1 and the high-voltage terminal 2. It should be noted that the length direction in the present invention refers to the length direction of the first end 211 of the connecting portion 21, and the width direction in the present invention refers to the width or thickness direction of the first end 211; and the inward along the width direction mentioned in the present invention refers to the side where the two first mating ends 221 face each other along the width direction.

[0037] In this embodiment, the mating portion 22 includes two first mating ends 221 arranged opposite to each other, two second mating ends 222 arranged opposite to the outer side surfaces of the two first mating ends 221, and two supporting ends 223 arranged opposite to the outer side surfaces of the two second mating ends 222. A first plug-in cavity 23 exposed to the first surface 1a of the insulator 1 along the plug-in direction is formed between the two first mating ends 221. The two first mating ends 221 are used for plug-in mating with the docking high-voltage terminal, and the two second mating ends 222 are used to increase the contact area with the docking high-voltage terminal and provide a certain degree of support to the first mating end 221. The two supporting ends 223 further provide support to the first mating end 221 and the second mating end 222, and provide elastic compensation to the first mating end 221 to ensure that the first mating end 221 can press the docking high-voltage terminal tightly to ensure the normal transmission and conduction of the electrical signal. It should be noted that in the present utility model, "outward along the width direction" refers to the two first mating ends 221 facing the opposite side along the width direction. The first mating end 221 , the second mating end 222 and the supporting end 223 are all made of conductive materials. The first mating end 221 and the second mating end 222 may be made of copper, and the supporting end 223 may be made of stainless steel, but the present invention is not limited thereto.

[0038] In the content defined in this embodiment, the two first mating ends 221 are respectively located in the two first installation cavities 16, and each first mating end 221 includes a first connecting plate 2211 connected to the connecting part 21, a plurality of first elastic arms 2212 arranged at intervals along the length direction of the first connecting plate 2211, and a plurality of first contact portions 2213 arranged on the end of the first elastic arm 2212 away from the connecting part 21 along the plug-in direction. The first connecting plate 2211 is used to be conductively connected to the first end 211, so as to be electrically connected to the corresponding cable through the bolt 214 after the connecting part 21 is connected to the insulator 1. The first elastic arms 2212 are distributed at intervals to be respectively used for plugging and mating with the docking high-voltage terminals, thereby realizing the limiting of the docking high-voltage terminals, and the first contact portions 2213 are pressed against the docking high-voltage terminals through the elastic properties of the first elastic arms 2212, so as to realize the conduction between the high-voltage terminal 2 and the docking high-voltage terminal after the power is turned on.

[0039] In this embodiment, the first connecting plate 2211 is in a sheet-like structure and is arranged parallel to the first end 211. The two first connecting plates 2211 of the two first mating ends 221 are arranged on opposite sides of the first end 211 along the width direction of the first end 211. Each first connecting plate 2211 includes a bonding plate 22a detachably attached to the opposite sides of the first end 211 and a curved plate 22b arranged between the bonding plate 22a and the first elastic arm 2212. The bonding plate 22a is parallel to the first end 211. One end 211 is arranged and connected to the first end 211. The bonding plate 22a can be connected to the first end 211 by a fixed connection method, such as welding, or it can be detachably attached to the first end 211, such as using bolt connection, snap connection, etc. to connect the bonding plate 22a to the first end 211. For example: a through hole is opened on the bonding plate 22a and the first end 211 along the width direction of the first end 211, and it is fixed by using bolts to facilitate disassembly and installation, so as to facilitate maintenance. The width direction of the curved plate 22b is arranged along the plugging direction, and the length direction of the curved plate 22b is arranged along the length direction of the first end 211. The two curved plates 22b of the two first connecting plates 2211 extend from the side of the bonding plate 22a away from the second end 212 to the side away from the first end 211 along the plugging direction, and the spacing between the two first connecting plates 2211 gradually widens and then gradually narrows, so that the middle parts of the two first connecting plates 2211 are bent outward along the width direction to form a space with narrow ends and wide middle parts. The first elastic arm 2212 is connected to the side of the curved plate 22b away from the bonding plate 22a and is enclosed together with the curved plate 22b to form a first plug-in cavity 23. When the docking high-voltage terminal contacts the first contact portion 2213, the curved plate 22b with an arc-shaped convex structure provides support for the first contact portion 2213 and the first elastic arm 2212 and facilitates deformation and elastic recovery, so as to facilitate elastic cooperation with the docking high-voltage terminal.

[0040] In this embodiment, each first elastic arm 2212 is formed by extending from the curved plate 22b of the first connecting plate 2211 in the plug-in direction toward the side away from the connecting portion 21, and the first elastic arm 2212 is connected to one end of the curved plate 22b and smoothly engages with the curved plate 22b and extends in the same direction, so as to facilitate one-piece molding. Several first elastic arms 2212 each include a first elastic section 22121 extending from the curved plate 22b in the plug-in direction and arranged inwardly in the width direction, a first bent section 22122 bent outwardly in the width direction from the first elastic section 22121, and a second elastic section 22123 arranged outwardly in the width direction from the first bent section 22122. The extension direction of the first elastic section 22121 is consistent with the extension direction of the side of the curved plate 22b away from the bonding plate 22a to form an arc shape. The first elastic section 22121, the second elastic section 22123, the first bent section 22122, and the first connecting plate The curved panels 22b of 2211 are jointly arranged to form a first plug-in cavity 23, and the first plug-in cavity 23 is connected to the first insertion port 181 along the insertion direction. The distance between the first bent sections 22122 of the two first mating ends 221 is the narrowest position of the entire first plug-in cavity 23, and the spacing between the first bent sections 22122 on the two first mating ends 221 is generally smaller than the width of the docking high-voltage terminal, so that when the docking high-voltage terminal is inserted into the plug-in cavity, only the first bent section 22122 is in contact with it, and the second elastic section 22123 plays a guiding role when the docking high-voltage terminal is inserted into the first plug-in cavity 23. When in use, the docking high-voltage terminal first enters the first plug-in cavity 23 at the position corresponding to the second elastic section 22123, and then gradually approaches the first bending section 22122 by squeezing the second elastic section 22123. The first bending section 22122 is squeezed to cause the first elastic section 22121 to deform toward the outer shape. At the same time, its elastic property always presses the docking high-voltage terminal back until the docking high-voltage terminal penetrates into the position corresponding to the curved panel 22b. The first bending section 22122 presses against the docking high-voltage terminal to achieve conduction while limiting the movement of the docking high-voltage terminal.

[0041] In this embodiment, a plurality of first contact portions 2213 are formed one by one at the ends of a plurality of first elastic arms 2212 away from the first connecting plate 2211 and are spaced apart along the length direction of the first mating end 221. The inner side surface of the first bending section 22122 is defined as the first contact portion 2213. The first contact portions 2213 are spaced apart along the length direction relative to the first mating end 221 so that the first contact portions 2213 deform with the first elastic arms 2212 and squeeze the docking high-voltage terminals respectively, so as to ensure that when any first elastic arm 2212 fails in elasticity and cannot squeeze the docking high-voltage terminal, the other first elastic arms 2212 can still contact the docking high-voltage terminal and be conductive.

[0042] In the content defined in this embodiment, the two second mating ends 222 are respectively located in the two first mounting cavities 16 to be connected to the corresponding first mating ends 221, and the two second mating ends 222 each include a second connecting plate 2221 connected to the first connecting plate 2211, a plurality of second elastic arms 2222 spaced apart along the length direction of the second connecting plate 2221, and a plurality of second contact portions 2223 arranged on the end of the second elastic arm 2222 away from the connecting portion 21 along the plugging direction, and the second connecting plate 2221 is used to be electrically connected to the first connecting plate 2211 and It is connected to the first end 211 to achieve conduction between the first connecting plate 2211 and the second connecting plate 2221, and each second elastic arm 2222 is distributed corresponding to the gap between each adjacent two first elastic arms 2212 so as to be respectively used for plugging and matching with the docking high-voltage terminal. The contact area is increased on the basis of the contact between the first elastic arm 2212 and the docking high-voltage terminal, and each second contact portion 2223 presses against the docking high-voltage terminal through the elastic performance of the second elastic arm 2222, so as to achieve conduction between the high-voltage terminal 2 and the docking high-voltage terminal after the power is turned on.

[0043] In this embodiment, the second connecting plate 2221 is in a sheet-like structure and is arranged along the outer side profile of the first connecting plate 2211 to also have a bonding plate 22a and a curved plate 22b. The bonding plate 22a of the second connecting plate 2221 is arranged parallel to the first end 211 and connected to the bonding plate 22a of the first connecting plate 2211. The curved plate 22b of the second connecting plate 2221 is bonded and extended along the outer side of the curved plate 22b of the first connecting plate 2211, so that the middle parts of the curved plates 22b of the two second connecting plates 2221 are bent outward along the width direction to form a space with narrow ends and wide middle parts, and the side of the curved plate 22b of the second connecting plate 2221 away from the first end 211 extends to one end of the first elastic section 22121 close to the first bending section 22122, so that the curved plate 22b of the second connecting plate 2221 provides support for the first elastic section 22121, reducing the possibility of elastic failure of the first elastic section 22121. Different from the first connecting plate 2211, the curved panel 22b of the second connecting plate 2221 extends from the side of the bonding plate 22a along the outer arm of the first elastic section 22121 toward the side close to the first bending section 22122, so that the width of the curved panel 22b of the second connecting plate 2221 is greater than the width of the curved panel 22b of the first connecting plate 2211, so that the curved panel 22b of the second connecting plate 2221 covers most of the first elastic section 22121. After installation, the curved panel 22b of the second connecting plate 2221 located on the outer side of the first elastic section 22122 increases the clamping force of the first elastic arm 2212.

[0044] In this embodiment, in order to be staggered with the first elastic arms 2212, each second elastic arm 2222 corresponds to the gap between two adjacent first elastic arms 2212 in the width direction, and each second elastic arm 2222 is formed to extend from the curved plate 22b of the second connecting plate 2221 along the plug-in direction and away from the connecting portion 21. The plurality of second elastic arms 2222 each include a third elastic segment 22221 extending from the curved plate 22b along the plug-in direction and arranged inwardly inclined along the width direction, a second bent segment 22222 bent inwardly along the width direction from the third elastic segment 22221, a third bent segment 22223 bent outwardly along the width direction from the second bent segment 22222, and a fourth elastic segment 22224 extending from the third bent segment 22223 along a length direction parallel to the second elastic segment 22123 and located between two adjacent first elastic arms 2212. 221, the length of the third elastic segment 22221 is much shorter than that of the first elastic segment 22121, and the third elastic segment 22221 provides support for the second bending segment 22222, the third bending segment 22223 and the fourth elastic segment 22224. The second bending segment 22222 and the third bending segment 22223 allow the second elastic arm 2222 to extend into the gap between the two adjacent first elastic arms 2212 of the first mating end 221 on the same side, so that the first elastic arm 2212 and the second elastic arm 2222 are staggered and independent of each other. The distance between the third bending sections 22223 of the two second mating ends 222 is the narrowest position of the entire first plug-in cavity 23, and the spacing between the third bending sections 22223 on the two second mating ends 222 is generally smaller than the width of the butt high voltage terminal, so that the butt high voltage terminal can contact it when it is inserted into the first plug-in cavity 23, and the fourth elastic section 22224 plays a guiding role when the butt high voltage terminal is inserted into the first plug-in cavity 23. When in use, the butt high voltage terminal first enters the position of the first plug-in cavity 23 corresponding to the fourth elastic section 22224, and then gradually approaches the third bending section 22223 by squeezing the fourth elastic section 22224. The third bending section 22223 is squeezed to make the second bending section 22222 deform toward the outer shape, and at the same time, its elastic performance always presses the butt high voltage terminal back, until the butt high voltage terminal penetrates the position corresponding to the curved plate 22b, and the third bending section 22223 presses against the butt high voltage terminal to achieve conduction while limiting the movement of the butt high voltage terminal.

[0045] In this embodiment, a plurality of second contact portions 2223 are formed one by one at the end of a plurality of second elastic arms 2222 away from the second connecting plate 2221, and the inner side surfaces of the third bending section 22223 and the fourth elastic section 22224 are defined as second contact portions 2223, and each second contact portion 2223 is spaced apart along the length direction relative to the second mating end 222, so that the second contact portion 2223 deforms with the second elastic arm 2222 and squeezes the docking high-voltage terminal respectively, so as to ensure that when any first elastic arm 2212 fails in elasticity and cannot squeeze the docking high-voltage terminal, the other first elastic arms 2212 can still contact the docking high-voltage terminal and be conductive.

[0046] In the content defined in this embodiment, the two supporting ends 223 are respectively arranged in the two first installation cavities 16 to respectively connect the two second mating ends 222, and the two supporting ends 223 include a third connecting plate 2231 connected to the second connecting plate 2221, a plurality of elastic support arms 2232 arranged at intervals along the length direction of the third connecting plate 2231, and a plurality of support portions 2233 arranged on the end of the elastic support arm 2232 away from the connecting portion 21 along the plug-in direction, the third connecting plate 2231 is used to fit and connect with the second connecting plate 2221 and connect with the first end 211 to realize the support of the third connecting plate 2231 to the second connecting plate 2221, each elastic support arm 2232 is distributed one by one corresponding to the gap between each adjacent second elastic arm 2222 and extends toward the first elastic arm 2212 and supports the first elastic arm 2212, while the third connecting plate 2231 increases the overall strength of the first connecting plate 2211, the elastic support arm 2232 increases the overall strength of the first elastic arm 2212, thereby improving the service life.

[0047] In this embodiment, the third connecting plate 2231 is in a sheet-like structure and is arranged along the outer side profile of the second connecting plate 2221 to also have a bonding plate 22a and a curved plate 22b. The bonding plate 22a of the third connecting plate 2231 is arranged parallel to the first end 211 and connected to the bonding plate 22a of the second connecting plate 2221. The curved plate 22b of the third connecting plate 2231 is bonded and extended along the outer side of the curved plate 22b of the second connecting plate 2221, so that the middle parts of the curved plates 22b of the two third connecting plates 2231 are bent outwardly along the width direction to form a space with narrow ends and wide middle parts, and the side of the curved plate 22b of the third connecting plate 2231 away from the first end 211 corresponds to the panel-less arrangement of the first connecting plate 2211, so that a part of the curved plate 22b of the second connecting plate 2221 is not blocked to reduce the material consumption.

[0048] In this embodiment, in order to be staggered with the second elastic arms 2222, each elastic support arm 2232 is formed in the gap corresponding to each adjacent second elastic arm 2222 in the width direction, and each elastic support arm 2232 is extended from the curved plate 22b of the third connecting plate 2231 in the plug-in direction toward the connecting portion 21. The elastic support arms 2232 each include a first support segment 22321 extending from the third connecting plate 2231 along the length direction of the first elastic arm 2212 and attached to the second connecting plate 2221, a fourth bent segment 22322 bent inwardly from the first support segment 22321 along the width direction, a second support segment 22323 extending obliquely inwardly from the fourth bent segment 22322 along the width direction, a fifth bent segment 22324 bent outwardly from the second support segment 22323 along the width direction and pressed against the first elastic segment 22121, and a fifth bent segment 22324 bent inwardly from the fifth bent segment 22324 along the width direction. The third support section 22325 extends outward and obliquely toward the second elastic section 22123. The first support section 22321 provides support for the fourth bending section 22322, the second support section 22323, the fifth bending section 22324 and the third support section 22325. The fourth bending section 22322 and the fifth bending section 22324 allow the elastic support arm 2232 to extend through the gap between two adjacent second elastic arms 2222 of the second mating end 222 on the same side, so that the second elastic arms 2222 and the elastic support arm 2232 are staggered and independent of each other. The distance between the fifth bending sections 22324 of the two support ends 223 is the narrowest between the entire two support ends 223 and abuts against the outer side of the first elastic section 22121 to support the first elastic arm 2212.

[0049] In this embodiment, a plurality of support portions 2233 are formed one by one at an end of a plurality of elastic support arms 2232 away from the third connecting plate 2231, and the inner side surface of the fifth bending section 22324 is defined as the support portion 2233. The support portions 2233 are spaced apart along the length direction relative to the third connecting plate 2231, so that the support portions 2233 can deform with the elastic support arm 2232 to support the first elastic arm 2212, thereby avoiding the situation where the first elastic arm 2212 cannot rebound after being squeezed, and the third support section 22325 can avoid affecting the first elastic arm 2212 and stay away from the second elastic section 22123.

[0050] Another embodiment of the high-voltage terminal 2 of the utility model includes a connecting portion 21 and a matching portion 22 connected to the connecting portion 21. The structure of the connecting portion 21 is consistent with the structure of the aforementioned embodiment and is not described again. The matching portion 22 includes two first matching ends 221 and two supporting ends 223 arranged opposite to each other. The two first matching ends 221 each include a first connecting plate 2211, a plurality of first elastic arms 2212 arranged at intervals along the length direction of the first connecting plate 2211, a first contact portion 2213 formed on the first elastic arm 2212, a plurality of second elastic arms 2222 arranged at intervals along the length direction of the first connecting plate 2211, and a second contact portion 2223 formed on the second elastic arm 2222. Each second elastic arm 2222 is arranged between two corresponding adjacent first elastic arms 2212, and the first elastic arm 2212 and the second elastic arm 2222 are independent of each other. The first elastic arm 2212 and the second elastic arm 2222 are staggered and distributed at one time and are both connected to the curved plate of the first connecting plate 2211. The supporting portion 2233 includes a third connecting plate 2231 and an elastic supporting arm 2232 extending and fitting along the outer side profile of the first connecting plate 2211. The third connecting plate 2231 is attached to the outer side of the first connecting plate 2211 and connected to the first end 211. The elastic supporting arm 2232 is arranged in a one-to-one correspondence with each first elastic arm 2212 along the width direction to support the first elastic arm 2212. The structures of the first connecting plate 2211, the first elastic arm 2212, the second elastic arm 2222, the third connecting plate 2231 and the elastic supporting arm 2232 are consistent with the above-mentioned embodiment, and only the angles of each bending are adjusted on this basis so that the first contact portion 2213 and the second contact portion 2223 can both press and connect the high-voltage terminal, so that the elastic supporting arm 2232 can resist the first elastic supporting arm 2232, which will not be repeated here.

[0051] like Figures 3 to 8 As shown, in this embodiment, two interlocking terminals 3 are correspondingly provided and are respectively installed in the two second installation cavities 17. Both interlocking terminals 3 include a protective portion 31 and a conductive portion 32 inserted into the protective portion 31, so that the protective portion 31 is sleeved on the conductive portion 32, and the conductive portion 32 and the protective portion 31 are both installed in the second installation cavity 17, and a second plug-in cavity 33 is provided on the conductive portion 32 along the plug-in direction for the mating interlocking terminal to pass through and be conductively connected with the mating interlocking terminal, and the second plug-in cavity 33 is connected to the second installation cavity 17 and the third plug-in port 183 along the plug-in direction so that the mating interlocking terminal can be inserted into the second plug-in cavity 33 after passing through the second installation cavity 17 to connect with it and achieve conduction, and the protective portion 31 plays a certain protective role on the conductive portion 32, ensuring the strength of the conductive portion 32 and the firmness of the connection with the mating interlocking terminal.

[0052] In this embodiment, the protection part 31 includes a sleeve 311 in the shape of a hollow circular tube and a first stopper 312 connected to the sleeve 311 at one end. The hollow sleeve 311 inside the sleeve 311 is connected with a coaxial first barrel section 3111, a second barrel section 3112 and a third barrel section 3113 in sequence from the side close to the first surface 1a of the insulator 1 to the side close to the second surface 1b along the plugging direction. A fourth insertion opening 3114 for the mating interlocking terminal to pass through is formed on the end of the first barrel section 3111 away from the second barrel section 3112. When the sleeve 311 is installed in the second installation cavity 17, the fourth insertion opening 3114 is opposite to the third insertion opening 183 along the plugging direction. A fifth insertion opening 3115 for the conductive part 32 to movably pass through is formed on the end of the third barrel section 3113 away from the first barrel section 3111 along the plugging direction, so that the conductive part 32 can be movably arranged therein, so as to facilitate the installation of the interlocking terminal 3. In this embodiment, in order to facilitate the confinement of the interlocking terminal 3 in the second mounting cavity 17, the second mounting cavity 17 is connected to form a first mounting section 171, a second mounting section 172 and a third mounting section 173 in sequence from the first surface 1a of the insulator 1 toward the second surface 1b along the plugging direction. The inner diameter of the second mounting section 172 is smaller than the inner diameters of the first mounting section 171 and the third mounting section 173 so that a first step surface 174 is formed at the intersection of the first mounting section 171 and the second mounting section 172, and a second step surface 175 is formed at the intersection of the second mounting section 172 and the third mounting section 173. The first barrel section 3111 is inserted into the first mounting section 171, the second barrel section 3112 is inserted into the second mounting section 172, and the third barrel section 3113 is inserted into the third mounting section 173. During installation, the first barrel section 3111 is inserted into the second installation cavity 17 from the sixth insertion port 184 along the plug-in direction, and passes through the third installation section 173 and the second installation section 172 in sequence until it is inserted into the first installation section 171. During this process, the second barrel section 3112 passes through the sixth insertion port 184 and the third installation section 173 in sequence to penetrate into the second installation section 172, and the third barrel section 3113 penetrates into the third installation section 173 after passing through the sixth insertion port 184.

[0053] In the present embodiment, at least one active cavity 3116 penetrating the side wall of the sleeve 311 is provided on the side wall of the first barrel section 3111 along the radial direction of the first barrel section 3111, so that the active cavity 3116 is connected to the inner cavity of the sleeve 311, one end of the first limiting piece 312 is connected to the side of the active cavity 3116 close to the fourth insertion port 3114, and the other end of the first limiting piece 312 extends toward the side of the fifth insertion port 3115 and is arranged obliquely toward the outside of the sleeve 311 along the radial direction of the sleeve 311. Segment 3111 is installed in the first mounting segment 171. In the present embodiment, the distance from the inclined end of the first limiting piece 312 to the axis center of the first barrel segment 3111 is greater than the width or inner diameter of the first mounting segment 171 when not under pressure. After the first barrel segment 3111 is inserted into the first mounting segment 171, the inner wall of the first mounting segment 171 squeezes the first limiting piece 312, and the inclined end of the first limiting piece 312 is pressed against the inner wall of the first mounting segment 171 to prevent the interlocking terminal 3 from shaking in the first mounting cavity 16. When the interlocking terminal 3 is moved toward the second surface 1b along the plug-in direction, after the first limiting piece 312 abuts against the first step surface 174, the inclined end of the first limiting piece 312 actually abuts against the position where the first step surface 174 is connected to the side wall of the first mounting cavity 16. At this time, the interlocking terminal 3 continues to be pulled toward the second surface 1b. The side wall of the second mounting cavity 17 will limit the bending and swinging of the first limiting piece 312 toward the first surface 1a so that the first limiting piece 312 abuts against the first step surface 174. A stable triangular structure is formed among the first limiting piece 312, the first barrel section 3111 and the first step surface 174, thereby preventing the first barrel section 3111 from detaching from the first mounting cavity 16 and ensuring the stability between the interlocking terminal 3 and the insulator 1. The first limiting piece 312 is formed by splitting and bending the outer wall of the first barrel section 3111. There is a gap between the first limiting piece 312 and the two sides adjacent to the active cavity 3116 and the active cavity 3116 so that the first limiting piece 312 can bend and swing relative to the active inside and outside. When the first barrel section 3111 passes through the second mounting section 172, the inner wall of the second mounting cavity 17 squeezes the first limiting piece 312 so that the first limiting piece 312 deforms toward the active cavity 3116 until it passes through the second mounting section 172 and then rebounds to press against the inner wall of the first mounting section 171. In this embodiment, the first limiting piece 312 is defined as a first limiting structure to be formed on the protective portion 31. The first limiting structure is used to limit the interlocking terminal 3 from moving toward the second surface 1b along the plugging direction.In the present embodiment, in order to make the conductive part 32 fit tightly between the protective part 31 and the conductive part 32 after being inserted into the sleeve 311 to prevent the conductive part 32 from loosening, a first slit 3117 is provided on the side wall of the second barrel section 3112 along the plug-in direction, with two ends respectively connected to the fifth plug-in port 3115 and the movable cavity 3116. The first slit 3117 penetrates the sleeve 311 along the radial direction of the sleeve 311 to connect to the inner cavity of the sleeve 311, so that the first slit 3117 penetrates the third barrel section 3113 along the plug-in direction, so that the second barrel section 3112 and the third barrel section 3113 can be tensioned to a certain extent through the first slit 3117, and the inner diameter of the protective part 31 is less than or equal to the outer diameter of the conductive part 32, so that it can be used to fit tightly with the conductive parts 32 of different sizes, thereby facilitating disassembly and replacement. In order to make the conductive part 32 better cooperate with the protection part 31, and also to make the protection part 31 better cooperate with the first installation section 171, the first movable cavity 3116, the first limiting piece 312 and the first slit 3117 are all set to two and are correspondingly arranged on the opposite sides of the protection part 31. The first slit 3117 divides the first barrel section 3111 and the second switch into two halves to better tighten the protection part 31. In this embodiment, a wide-mouth section 3118 with an inner diameter larger than the second installation section 172 is formed on the end of the third barrel section 3113 away from the first barrel section 3111 and extends along the circumferential direction of the third barrel section 3113. The wide-mouth section 3118 is connected to the inner cavity of the first barrel section 3111 and the second barrel section 3112 along the plugging direction. The fifth plug-in port 3115 is formed on the wide-mouth section 3118, and the opening side of the wide-mouth section 3118 is the fifth plug-in port 3115. The first slit 3117 also runs through the wide-mouth section 3118. When the conductive part 32 is installed on the protective part 31, the conductive part 32 can quickly enter the inner cavity of the sleeve 311 through the wide-mouth section 3118, so that the protective part 31 and the conductive part 32 are coaxial after being sleeved. It should be noted that the outer diameter of the wide-mouth section 3118 is larger than the diameter of the second installation section 172, so that the wide-mouth section 3118 cannot pass through the second installation section 172, and when the protective part 31 is installed, the third barrel section 3113 is prevented from penetrating into the first installation section 171 to affect the installation of the conductive part 32.

[0054] In this embodiment, the conductive part 32 includes a conductive end 321 in the shape of a hollow tube inserted into the sleeve 311 and a connecting end 322 connected to the conductive end 321 on the side away from the sleeve 311. The conductive end 321 and the connecting end 322 are integrally formed. The conductive end 321 is used to connect with the docking interlocking terminal to achieve conduction between the plug and the socket, and the connecting end 322 is used to connect with the cable on the circuit board to achieve circuit connectivity of the socket.

[0055] In the content defined in this embodiment, the conductive end 321 includes a first conductive segment 3211 that gradually widens along the plugging direction toward the connecting end 322 to have a small end and a large end, and a second conductive segment 3212 whose two ends are respectively connected to the connecting end 322 and the large end of the first conductive segment 3211, the diameter of the small end is smaller than the diameter of the large end, and the outer diameter of the second conductive segment 3212 is equal to the outer diameter of the large end. During assembly, the conductive end 321 is inserted into the sleeve 311 through the sixth insertion port 184 and the third installation segment 173 in turn through the fifth insertion port 3115, and the first conductive segment 3211 is inserted into the first barrel segment 3111, and the second conductive segment 3212 is inserted into the second barrel segment 3112 and the third barrel segment 3113. The contents of the first barrel segment 3111 and the second barrel segment 3112 are defined as the second plug-in cavity 33, and both ends of the first barrel segment 3111 and the second barrel segment 3112 are penetrated along the plug-in direction, so that the second plug-in cavity 33 penetrates the first conductive segment 3211 and the second conductive segment 3212 along the plug-in direction, thereby completing the installation between the protective portion 31 and the conductive portion 32. In order to make the conductive part 32 fit tightly with the inner wall of the protective part 31, the outer diameter of the small-mouth end of the first conductive segment 3211 is smaller than the inner diameter of the sleeve 311, and the outer diameter of the second conductive segment 3212 is greater than or equal to the inner cylinder of the sleeve 311 and smaller than the inner diameter of the wide-mouth segment 3118. At least one slot 3213 is provided along the plug-in direction on the end of the first conductive segment 3211 away from the connecting end 322. The end of the slot 3213 away from the connecting end 322 penetrates the first conductive segment 3211 along the plug-in direction toward the side away from the connecting end 322, and the slot 3213 penetrates the first conductive segment 3211 along the radial direction of the conductive end 321. The first conductive segment 3211 is formed so that the slot 3213 is U-shaped, so that the small end of the first conductive segment 3211 can have a certain contraction and expansion ability, thereby changing the inner and outer diameters of the first conductive segment 3211, so that it can be used in sleeves 311 of different sizes to a certain extent. At the same time, after the docking interlocking terminal is inserted into the first conductive segment 3211, if the diameter of the docking interlocking terminal is larger than the diameter of the first conductive segment 3211, the first conductive segment 3211 can be opened through the slot 3213 after the docking interlocking terminal is squeezed into the first conductive segment 3211 to complete the docking of the docking interlocking terminal. In this embodiment, the slot 3213 is preferably set to two and is arranged on opposite sides of the first conductive segment 3211 in the radial direction for better opening and closing. In this embodiment, a second slit 3214 is provided on the second conductive segment 3212 along the plugging direction, one end of which is connected to one of the slots 3213 and the other end of which passes through the connecting end 322. The second slit 3214 radially passes through the second conductive segment 3212 to connect to the second plugging cavity 33, so that the first conductive segment 3211 and the second conductive segment 3212 can expand or rebound synchronously through the slot 3213 and the second slit 3214 respectively.When assembling the interlocking terminal 3, the small-mouthed end of the first conductive segment 3211 first passes through the wide-mouthed end 3118 to enter the second plug-in cavity 33, until the large-mouthed end of the first conductive segment 3211 and the second conductive segment 3212 enter the second plug-in cavity 33. When the diameter of the second conductive segment 3212 is larger than the inner diameter of the second plug-in cavity 33, the second conductive segment 3212 is squeezed and contracts through the groove 3213 and the second slit 3214 until it can pass through the second plug-in cavity 33. In this way, when the second conductive segment completes the installation with the sleeve 311, the second conductive segment 3212 presses against the second plug-in cavity 33 to achieve a tight fit, thereby ensuring the stability and firmness of the connection between the conductive end 321 and the sleeve 311. When the diameter of the second conductive segment 3212 is equal to the inner diameter of the second plug-in cavity 33, the second conductive segment 3212 can directly penetrate into the second plug-in cavity 33, and the second conductive segment 3212 can slide along the plug-in direction relative to the inner wall of the sleeve 311, and the sleeve 311 limits the movement of the second conductive segment 3212 in the radial direction. It should be noted that the second conductive segment 3212 is squeezed to a minimum outer diameter smaller than the inner diameter of the second plug-in cavity 33 to ensure that the second conductive segment 3212 can penetrate into the second plug-in cavity 33.

[0056] In this embodiment, in order to prevent the first conductive segment 3211 from detaching from the second plug-in cavity 33 and to prevent the entire interlocking terminal 3 from moving along the plug-in direction toward the first surface 1a of the insulator 1 and detaching from the second mounting cavity 17, a second limiting piece 3215 with an outwardly curved arc is formed on the side wall of the conductive end 321. In order to make the connection more stable, the second limiting piece 3215 is formed on the second conductive segment 3212. The second limiting piece 3215 is triangular in shape and is formed in a "V" shape on the side wall of the second conductive segment 3212. The tip portion of the second limiting piece 3215 is bent radially outward, and the distance between the tip of the second limiting piece 3215 and the axis of the second conductive segment 3212 is greater than the inner diameter of the second plug-in cavity 33 and greater than the inner diameter of the second mounting segment 172. A through hole 3119 is provided on the side wall of the third barrel section 3113 at a position corresponding to the second limiting plate 3215, through which the second limiting plate 3215 can pass and be clamped. The through hole 3119 is a rectangular structure and its width is greater than the thickness of the first limiting plate 312 so that the second limiting plate 3215 can pass through. During assembly, the second limiting plate 3215 squeezes the inner wall of the sleeve 311 to make the sleeve 311 open through the first slit 3117 until the second limiting plate 3215 penetrates into the through hole 3119. The second limiting plate 3215 is used to limit the third barrel section 3113 from penetrating into the second mounting section 172, and at the same time locks the sleeve 311 and the conductive end 321 to prevent the conductive end 321 from escaping from the sleeve 311. In this embodiment, the second limiting plate 3215 is defined as a second limiting structure to prevent the interlocking terminal 3 from escaping from the second mounting cavity 17 along the plugging direction toward the first surface 1a when plugging and unplugging the plug.

[0057] In the content defined in this embodiment, the connecting end 322 is located outside the sleeve 311 and inside the third mounting section 173, and an enclosing section 3221 for the cable to pass through and tightly fit with the cable is extended on the connecting end 322. The connecting end 322 is formed by extending from the side of the second conductive segment 3212 along the radial direction facing away from the second slit 3214 and along the plug-in direction toward the side away from the second conductive segment 3212. The enclosing section 3221 is formed by extending from both sides of the connecting end 322 along the radial direction along a tangent line of the outer periphery of the second conductive segment 3212 and symmetrically distributed. The enclosing section 3221 includes a first enclosing piece 32211 and a second enclosing piece 32212. The first enclosing piece 32211 is located on a side close to the first conductive segment 3211, and the second enclosing piece 32212 is relative to the first enclosing piece 32211. The sheet 32211 is located on the side away from the first conductive segment 3211, the cross-section of the connecting end 322 is arc-shaped, and the ends of the two first surrounding sheets 32211 away from the connecting end 322 are tilted back to back to form a V-shape with the connecting end 322 as a whole, and the ends of the two second surrounding sheets 32212 away from the connecting end 322 are tilted back to back to form a V-shape with the connecting end 322 as a whole, and the spacing between the two first surrounding sheets 32211 is smaller than the spacing between the two second surrounding sheets 32212. When the connecting end 322 is connected to the cable, the core of the cable passes through the two first surrounding sheets 32211 and is clamped by the two first surrounding sheets 32211, and the end of the cable passes through the two second surrounding sheets 32212 and is clamped by the two second surrounding sheets 32212, thereby completing the connection between the low-voltage circuit of the circuit board and the socket.

[0058] One embodiment of the high-voltage interlocking socket of the utility model works as follows: before use, the connecting end 322 is connected to the low-voltage cable of the circuit board, and the second end 212 of the connecting part 21 is connected to the high-voltage cable by a bolt 214. When in use, align the docking interlocking terminal of the plug with the third insertion port 183, align the docking high-voltage terminal with the first insertion port 181, and then dock the plug with the socket along the insertion direction. During the docking process, the docking high-voltage terminal is first inserted into the first insertion cavity through the first insertion port 181, and the docking high-voltage terminal is pressed and limited by the first contact portion 2213 and the second contact portion 2223. After that, the docking interlocking terminal is inserted into the second installation cavity 17 through the third insertion port 183 and enters the second insertion cavity 33 through the sleeve 311. Under the extrusion of the docking interlocking terminal, the first limiting piece 312 is pressed against the first step surface 174. The diameter of the docking interlocking terminal is usually slightly larger than the diameter of the second insertion cavity 33. After the docking interlocking terminal is inserted into the second plug-in cavity 33, the conductive end 321 is squeezed to expand and press against the inner wall of the sleeve 311. The sleeve 311 is squeezed and pressed against the inner wall of the second mounting section 172, thereby realizing the clamping between the docking interlocking terminal and the interlocking terminal 3 and the further clamping between the interlocking terminal 3 and the second mounting cavity 17; when it is necessary to manually disconnect the circuit, pull it along the plug-in direction toward the first surface 1a of the insulator 1, first disconnect the connection between the docking interlocking terminal and the interlocking terminal 3, and then disconnect the high-voltage terminal 2 and the docking high-voltage terminal. During the disconnection process, the second surface 1b of the insulator 1 limits the high-voltage terminal 2 from moving toward the first surface 1a, and the second limiting piece 3215 of the interlocking terminal 3 abuts against the second step surface 175 to limit the interlocking terminal 3 from continuing to move toward the first surface 1a, thereby facilitating the installation of the interlocking terminal 3 while ensuring the stability of the interlocking terminal 3 and the high-voltage terminal 2.

Claims

1. A high-voltage interlocking socket, comprising an insulator, a high-voltage terminal mounted on the insulator, and an interlocking terminal mounted on the insulator, characterized in that: A second installation cavity is provided in the insulator along the plug-in direction, and the second installation cavity passes through the first surface and the second surface of the insulator along the plug-in direction; the interlocking terminal comprises a conductive portion and a protective portion sleeved on the conductive portion, and a second plug-in cavity is provided on the conductive portion along the plug-in direction for the mating interlocking terminal to pass through and be conductively connected therein, the second plug-in cavity is connected to the second installation cavity, a first limiting structure is provided on the protective portion to limit its movement along the plug-in direction toward the second surface of the insulator, and a second limiting structure is provided on the conductive portion to limit its movement along the plug-in direction toward the first surface of the insulator.

2. The high voltage interlock socket according to claim 1, characterized in that: The high-voltage terminal includes a connecting portion and a mating portion connected to the connecting portion and inserted into an insulator to be plugged and mated with a mating electrical connector. The mating portion includes two first mating ends arranged opposite to each other, and a first plug-in cavity exposed to the first surface of the insulator along the plug-in direction is formed between the two first mating ends; a plurality of first contact portions are arranged on the ends of the two first mating ends away from the connecting portion along the plug-in direction, and the plurality of first contact portions are spaced apart along the length direction of the first mating ends; a second contact portion is arranged between each two adjacent first contact portions, and each second contact portion is independent of the corresponding first contact portion.

3. The high voltage interlock socket according to claim 2, characterized in that: A first installation cavity is formed in the insulator along the plugging direction, and a first insertion port is provided on the first surface of the insulator along the plugging direction, which is connected to the first installation cavity and allows an external high-voltage terminal to pass through. A first end of the connecting portion extends into the first installation cavity, and a second end passes through the second surface of the insulator to be electrically connected to an electronic component or a circuit board, and the first mating end is located in the first installation cavity; The two first mating ends each include a first connecting plate connected to the first end of the connecting portion and a plurality of first elastic arms spaced apart along the length direction of the first connecting plate, the first plug-in cavity is formed by the first elastic arms and the first connecting plate and is connected to the first plug-in port along the plug-in direction, each of the first elastic arms extends from the first connecting plate along the plug-in direction away from the connecting portion, and a plurality of the first contact portions are formed one by one at one end of the plurality of the first elastic arms away from the first connecting plate; Each of the first elastic arms includes a first elastic section extending from the first connecting plate along the plug-in direction and arranged to be inclined inward along a width direction, a first bent section bent outward along the width direction from the first elastic section, and a second elastic section arranged to be inclined outward along the width direction from the first bent section, and the inner side surface of the first bent section is defined as the first contact portion.

4. The high voltage interlock socket according to claim 3, characterized in that: The mating portion further includes two second mating ends located in the first mounting cavity and arranged opposite to each other, and the two second mating ends are respectively attached to the outer side surfaces of the two first mating ends; The two second mating ends each include a second connecting plate connected to the first connecting plate and a plurality of second elastic arms spaced along the length direction of the second connecting plate and corresponding to each of the two adjacent first elastic arms, each of the second elastic arms extending from the second connecting plate along the plugging direction away from the connecting portion, and a plurality of second contact portions being formed one by one at one end of the plurality of second elastic arms away from the second connecting plate; Each of the plurality of second elastic arms includes a third elastic section extending from the second connecting plate along the plug-in direction and arranged obliquely inwardly along the width direction, a second bent section bent inwardly along the width direction from the third elastic section, a third bent section bent outwardly along the width direction from the second bent section, and a fourth elastic section extending from the third bent section along a direction parallel to the length of the second elastic section and located between two adjacent first elastic arms, and the inner side surfaces of the third bent section and the fourth elastic section are defined as the second contact portion.

5. The high voltage interlock socket according to claim 4, characterized in that: The matching portion further includes two supporting ends located in the first mounting cavity and arranged opposite to each other, and the two supporting ends are respectively attached to the outer side surfaces of the two second matching ends; The two supporting ends each include a third connecting plate connected to the second connecting plate and a plurality of elastic supporting arms spaced along the length direction of the third connecting plate and corresponding to between each two adjacent second elastic arms, each of the elastic supporting arms extending from the third connecting plate along the plugging direction away from the connecting portion; A plurality of supporting parts are provided on one end of each of the elastic supporting arms away from the connecting part in the plugging direction, and the plurality of supporting parts are respectively used to support each of the first elastic sections; The elastic support arm includes a first support section extending from the third connecting plate along the length direction of the first elastic arm and attached to the second connecting plate, a fourth bent section bent inwardly along the width direction from the first support section, a second support section extending obliquely inwardly along the width direction from the fourth bent section, a fifth bent section bent outwardly along the width direction from the second support section and pressed against the first elastic section, and a third support section extending outwardly along the width direction from the fifth bent section and obliquely toward one side of the second elastic section, wherein the inner side surface of the fifth bent section is defined as the support portion.

6. The high voltage interlock socket according to claim 5, characterized in that: A second insertion opening communicating with the first installation cavity is provided on the second surface of the insulator along the insertion direction, and the first end of the connecting portion is passed through the second insertion opening; The side of the second connecting plate away from the connecting portion extends to an end of the first elastic arm close to the first bending section, so that the side of the second connecting plate away from the connecting portion is located between the first elastic section and the first supporting section.

7. The high voltage interlock socket according to claim 1, characterized in that: A third insertion port connected to the second installation cavity and for the external interlocking terminal to pass through is provided on the first surface of the insulator along the insertion direction; the conductive portion and the protective portion are both installed in the second installation cavity; the second insertion cavity is connected to the third insertion port along the insertion direction; a fourth insertion port for the interlocking terminal to pass through is provided on the protective portion opposite to the third insertion port.

8. The high voltage interlock socket according to claim 7, characterized in that: The second mounting cavity is connected in sequence from the first surface toward the second surface of the insulator along the plugging direction to form a first mounting section, a second mounting section and a third mounting section, the inner diameter of the second mounting section is smaller than the inner diameters of the first mounting section and the third mounting section so that the intersection of the first mounting section and the second mounting section and the intersection of the second mounting section and the third mounting section form a first step surface and a second step surface respectively; The protective part includes a sleeve in the shape of a hollow circular tube, and the sleeve includes a first barrel section that is sequentially connected and inserted into the first installation section, a second barrel section that is inserted into the second installation section, and a third barrel section that is inserted into the third installation section. The fourth insertion port is formed on the end of the first barrel section away from the second barrel section, and a fifth insertion port is formed along the plug-in direction on the end of the third barrel section away from the first barrel section for the conductive part to move through. An active cavity that passes through the sleeve is radially formed on the side wall of the first barrel section. The protective part also includes a first limiting plate with one end connected to the active cavity on the side close to the fourth insertion port. The first limiting plate The other end of the sleeve extends toward the fifth insertion port and is inclined toward the outside of the sleeve for pressing against the inner wall of the first mounting section, and the first limiting plate presses against the first step surface when moving toward the third mounting section, and the first limiting plate is defined as the first limiting structure, and a first slit is provided on the side wall of the second barrel section along the insertion direction, with two ends respectively connecting the fifth insertion port and the active cavity, the first slit passes through the sleeve along the radial direction of the sleeve to connect the inner cavity of the sleeve, and a wide-mouth section with an inner diameter larger than the second mounting section is formed on the end of the third barrel section away from the first barrel section along its circumferential extension, and the fifth insertion port is formed on the wide-mouth section.

9. The high voltage interlock socket according to claim 8, characterized in that: The conductive part includes a conductive end in a hollow cylindrical shape inserted into the sleeve and a connecting end connected to the conductive end on a side away from the sleeve; The conductive end comprises a first conductive segment which gradually widens along the plug-in direction toward one side of the connecting end so as to have a small-mouth end and a large-mouth end, and a second conductive segment whose two ends are respectively connected to the connecting end and the large-mouth end of the first conductive segment, the first conductive segment penetrates into the first barrel segment, the outer diameter of the second conductive segment is consistent with the large-mouth end and penetrates into the second barrel segment and the third barrel segment, the inner cavity of the first conductive segment and the second conductive segment is defined as the second plug-in cavity, the second plug-in cavity penetrates through the first conductive segment and the second conductive segment along the plug-in direction, at least one slot penetrating through one end of the first conductive segment away from the connecting end is provided along the plug-in direction on one end of the first conductive segment away from the connecting end, the slot penetrating through the first conductive segment along the radial direction of the conductive end; a second slit is provided on the second conductive segment, one end of which is connected to one of the slots and the other end of which is penetrating toward one side of the connecting end, the second slit radially penetrating through the second conductive segment to connect to the second plug-in cavity; The connecting end is located outside the sleeve and inside the third mounting section, and an enclosing section is extended on the connecting end for the cable to pass through and tightly fit with the cable; when the docking interlocking terminal is inserted into the second plug-in cavity, the second conductive section tightly fits with the inner wall of the second barrel section, and the inner wall of the second barrel section tightly fits with the second mounting section.

10. The high voltage interlock socket according to claim 9, characterized in that: A second limiting plate with an outward bending arc is formed on the side wall of the conductive end, and a through hole is provided on the side wall of the third barrel section at a position corresponding to the second limiting plate, through which the second limiting plate can move and be clamped. The second limiting plate is used to limit the third barrel section from penetrating into the second mounting section, and the second limiting plate is defined as the second limiting structure.

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