High voltage connector

Abstract

The present invention discloses a high-voltage connector, including a socket, a plug, and a locking mechanism for locking the socket and the plug after the socket and the plug are plugged together. The plug includes a plug shell, a front plastic part of the plug, a rear plastic part of the plug, a crimping ring, a crown spring, a rubber sealing body, a plug tail cover, a jack body corresponding in number to the plug pins, and a cable electrically connected to the jack body one by one; the crimping ring is crimped on the shielding layer of the cable, the crown spring is assembled at the tail position in the plug shell, the crimping ring is inserted into the crown spring, the crimping ring props up the crown spring from the inside of the crown spring, so that the outer periphery of the crown spring is in close contact with the inner wall of the plug shell; a metal elastic body is arranged between the socket shell and the plug shell to form an electrical connection between the two when the two are assembled in place. By arranging the crimping ring on the cable shielding layer and inserting the crimping ring into the crown spring, it can be ensured that the cable shielding layer can achieve a 360° fully enclosed shielding capability with the plug shell through the crimping ring and the crown spring, thereby improving the safety and reliability of the connector.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical connectors, and in particular to a high-voltage connector. Background Art

[0002] The high-voltage connector consists of a high-voltage plug and a high-voltage socket. The high-voltage plug and the high-voltage socket are plugged in and out to connect and disconnect the plug and the socket. In order to prevent the high-voltage connector from being accidentally unplugged during use, the relative position of the plug and the socket is locked by the over-locking mechanism. In order to ensure the stable use of the high-voltage connector and reduce the risk of use, a shielding structure is added to the connector. The current shielding structure involves many components, the contact of the shielding part is not firm enough, and the shielding effect is unstable. Summary of the invention

[0003] In view of the above problems, an object of the present invention is to provide a high voltage connector with stable shielding performance.

[0004] The technical solution for implementing the present invention is as follows

[0005] A high voltage connector, comprising a socket, a plug, and a locking mechanism for locking the socket and the plug after they are plugged together, wherein the socket comprises a socket shell, a socket front plastic part, a socket rear plastic part; and one or more pins assembled in the socket shell;

[0006] The front plastic part of the socket and the rear plastic part of the socket are assembled in the socket shell. The front plastic part of the socket has a docking cavity corresponding to the number of pins. The fixed end of the pin is limited between the front plastic part of the socket and the rear plastic part of the socket, and the free end of the pin extends into the docking cavity.

[0007] The plug includes a plug shell, a plug front plastic part, a plug rear plastic part, a crimping ring, a crown spring, a rubber sealing body, a plug tail cover, a jack body having a number corresponding to the number of pins, and a cable electrically connected to the jack body one by one;

[0008] The front plastic part of the plug is assembled in the plug shell, and the front end of the front plastic part of the plug is assembled with the jack body. The front end of the front plastic part of the plug has a corresponding plug-in portion that is inserted into the above-mentioned plug-in cavity. When the plug-in portion is inserted into the above-mentioned plug-in cavity, the pin and the jack body form an electrical connection; the rubber sealing body is assembled in the rear part of the plug shell, and the outer wall of the rubber sealing body forms a seal with the inner wall of the plug shell. The rubber sealing body allows the cable to pass through and forms a seal with the outer wall of the cable; the rear plastic part of the plug is assembled in the rear part of the front plastic part of the plug;

[0009] The crimping ring is crimped onto the shielding layer of the cable, the crown spring is assembled at the tail position in the plug shell, the crimping ring is inserted into the crown spring, and the crimping ring props up the crown spring from the inside of the crown spring, so that the outer periphery of the crown spring is in close contact with the inner wall of the plug shell;

[0010] The socket housing, plug housing, crimping ring and crown spring are metal parts;

[0011] A metal elastic body is arranged between the socket shell and the plug shell so that an electrical connection is formed between the two when the two are assembled in place.

[0012] By adopting the above technical solution, a crimping ring is arranged on the cable shielding layer, and the crimping ring is passed through the crown spring. This can ensure that the cable shielding layer can achieve a 360° fully enclosed shielding capability between the crimping ring, the crown spring and the plug shell, thereby improving the safety and reliability of the connector.

[0013] Furthermore, the outer periphery of the plug housing is provided with an annular sealing groove, in which an annular plug-in seal is installed; after the plug-in seal is installed in the annular sealing groove, the outer periphery of the plug-in seal is higher than the outer peripheral surface of the plug housing;

[0014] When the socket housing and the plug housing are plugged into each other, the outer periphery of the plugging seal contacts the inner wall of the socket housing to form a seal.

[0015] Furthermore, the tail portion in the front plastic part of the plug has a creepage portion extending toward the tail portion to ensure a safe distance between the jack bodies.

[0016] Further, the locking mechanism comprises a locking sleeve with a circular cavity inside, a stop ring platform is arranged in the middle of the locking sleeve, a shift ring platform cooperating with the stop ring platform is arranged outside the plug shell, and one end of the locking sleeve is sleeved on the plug shell;

[0017] A spiral groove is arranged in the other end of the locking sleeve, a locking groove is arranged at the tail of the spiral groove, a through hole connected with the locking groove is arranged on the outer wall of the locking sleeve, and a locking part which is inserted into the spiral groove and moves into the locking groove along the trajectory of the spiral groove.

[0018] Furthermore, the high-voltage connector also includes a signal feedback structure, which includes a signal pin and a signal jack body. The signal pin is assembled in the plug shell, and the signal jack body is assembled in the socket shell. When the socket and the plug are plugged together, the signal pin is inserted into the signal jack body to form a signal loop.

[0019] Furthermore, a stop platform is provided in the rear portion of the plug shell to form a stop for the inner end surface of the rubber sealing body installed from the rear portion, a first positioning column inserted into the rubber sealing body to form a positioning is fixedly provided on the stop platform, the outer end surface of the rubber sealing body has a second positioning column, and a positioning hole for inserting the second positioning column is provided on the plug tail cover.

[0020] Furthermore, the plug tail cover is clamped on the rear part of the plug shell, and the plug tail cover has a cable hole for the cable to pass through. The outer end surface of the plug tail cover is located around the cable hole and extends outward to form a reinforcement structure. The reinforcement structure includes an annular portion extending outward to surround the cable hole, and reinforcement portions distributed around the annular portion; the reinforcement portion is located between the outer end surface of the plug tail cover and the outer peripheral surface of the annular portion, forming a support for the annular portion.

[0021] Furthermore, a hook is arranged on the outer periphery of the front plastic part of the plug, and a slot for the hook to be inserted into is arranged on the inner wall of the plug shell, and the depth of the hook inserted into the slot is greater than 0.5 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 for Figure 1 A schematic diagram of a rear-view stereoscopic structure;

[0024] Figure 3 It is a planar structural diagram of the present invention;

[0025] Figure 4 for Figure 3 AA section diagram;

[0026] Figure 5 is an internal cross-sectional view of the socket of the present invention;

[0027] Figure 6 It is a schematic diagram of the three-dimensional structure of the socket housing in the present invention;

[0028] Figure 7 It is a schematic diagram of the interior of the socket housing in the present invention;

[0029] Figure 8 It is a structural schematic diagram of the rear plastic part of the socket in the present invention;

[0030] Fig. 9 It is a structural schematic diagram of the front plastic part of the socket in the present invention;

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the locking sleeve in the present invention;

[0032] Fig.11 It is a front schematic diagram of the metal elastic body in the present invention;

[0033] Fig.12 for Fig.11 Schematic side view of

[0034] Fig.13 is an internal cross-sectional view of the plug of the present invention;

[0035] Fig.14It is a three-dimensional schematic diagram of the plug housing in the present invention;

[0036] Fig.15 for Fig.14 Schematic diagram of the rear side;

[0037] Fig.16 It is a schematic diagram of the three-dimensional structure of the front plastic part of the plug in the present invention;

[0038] Fig.17 It is a schematic diagram of the three-dimensional structure of the rear plastic part of the plug in the present invention;

[0039] Fig.18 It is a structural schematic diagram of the crimping ring in the present invention;

[0040] Fig.19 It is a schematic diagram of the three-dimensional structure of the crown spring in the present invention;

[0041] Fig. 20 It is a schematic plan view of the end of the crown spring in the present invention;

[0042] Fig.21 It is a schematic diagram of the three-dimensional structure of the plug tail cover in the present invention;

[0043] Fig. 22 It is a schematic diagram of the three-dimensional structure of the rubber sealing body in the present invention;

[0044] Fig.23 for Figure 3 Left side plan view;

[0045] Fig.24 for Fig.23 Sectional view at the middle BB;

[0046] In the accompanying drawings, 1 is a socket shell, 2 is a front plastic part of the socket, 3 is a rear plastic part of the socket, 4 is a pin, 5 is a mounting plate, 6 is a mounting hole, 7 is a sealing gasket, 701 is a gear step, 702 is an assembly step, 703 is an insertion end, 8 is a plug cavity, 9 is an annular clamping ring, 10 is a clamping groove, 11 is a docking plug cavity, 12 is a fixed end of the pin, 13 is a free end of the pin, 14 is a claw, 15 is an annular clamping groove, 16 is an annular insertion cavity, 17 is a plug shell, 18 is a front plastic part of the plug, 19 is a rear plastic part of the plug, 20 is a crimping ring, 21 is a crown spring, 22 is a rubber sealing body, 23 is a plug tail cover, 24 is a jack body, 25 is a cable, 26 is a plug-in part, 27 is a fixing ring, 28 is a connecting piece, 29 is a crown spring, The spring protrusion part, 30 is a metal elastic body, 31 is a creepage part, 32 is a top claw, 33 is a hook, 3301 is a slot, 34 is an annular sealing groove, 35 is a plug-in seal, 36 is a shifting platform, 37 is a first positioning column, 38 is a second positioning column, 39 is a positioning hole, 40 is a cable hole, 41 is an annular part, 42 is a reinforcing part, 43 is a locking sleeve, 44 is a raised part, 45 is a stop annular platform, 46 is a shifting annular platform, 47 is a spiral groove, 48 is a positioning groove, 49 is a through hole, 50 is a positioning part, 51 is a signal pin, 52 is a signal jack body, 53 is a top block, 54 is a T-shaped plug block, 55 is a T-shaped slot, 56 is a slot, 57 is an axial plug block, 58 is an axial slot, and 59 is a positioning slot;

[0047] 101 is a socket, 102 is a plug, and 103 is a locking mechanism. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] like Figure 1 As shown in FIG. 24 , the high-voltage connector comprises a socket 101, a plug 102, and a locking mechanism 103 for locking the socket and the plug after the socket and the plug are plugged together; when plugging, the plug is inserted into the socket, and the locking mechanism is used to lock the two to achieve the connection between the plug and the socket; when disassembling, the locking ability of the locking mechanism is released, and the plug can be pulled out of the socket to separate them.

[0050] The socket 101 comprises a metal socket shell 1, a socket front plastic part 2, a socket rear plastic part 3; and two conductive pins 4 assembled in the socket shell; a mounting plate 5 is provided on the outer periphery of the socket shell, and a mounting hole 6 is provided on the mounting plate. The mounting plate, i.e., the socket, is installed in the use position by inserting a connector into the mounting hole, and a sealing gasket 7 is provided on the mounting surface of the mounting plate for protective sealing; a stop step 701 is provided in the socket shell, the socket front plastic part and the socket rear plastic part are assembled in the socket shell, and an assembly step 702 is provided on the outer periphery of the socket rear plastic part to form a match with the stop step, and the socket rear plastic part is inserted into the socket shell and limited by the cooperation of the two steps; the socket front plastic part is installed in the socket shell, and the socket rear plastic part has an insertion cavity 703, and the socket front plastic part has an insertion end 8, and the insertion end is inserted into the insertion cavity, and then the socket front plastic part and the socket rear plastic part are limited in the socket shell by an annular snap ring 9 with a cutout clamped in an annular clamping groove 10 on the inner wall of the socket shell.

[0051] The front plastic part of the socket has a mating cavity 11 corresponding to the number of pins. The fixed end 12 of the pin is limited between the front plastic part of the socket and the rear plastic part of the socket, and the free end 13 of the pin extends into the mating cavity; the front end of the rear plastic part of the socket has a claw 14, and the outer periphery of the fixed end of the pin has an annular groove 15 for the claw to insert into the groove to form a position; the socket wire is in the fixed end of the pin, and a connecting screw is inserted into the pin from the radial direction to lock the socket wire in the fixed end of the pin. An annular insertion cavity 16 for the plug shell to be inserted is formed between the inner wall of the socket shell and the front plastic part of the socket.

[0052] The plug 102 includes a metal plug shell 17, a front plastic part 18, a rear plastic part 19, a crimping ring 20, a metal crown spring 21, a rubber wire sealing body 22, a plug tail cover 23, a conductive socket body 24 whose number corresponds to the pins, and a cable 25 that forms an electrical connection with the socket body one by one; the front plastic part of the plug is assembled in the plug shell, and the socket body is assembled in the front end of the front plastic part of the plug. The front end of the front plastic part of the plug has a mating part 26 that is inserted into the above-mentioned mating cavity 11 in a one-to-one correspondence. When the mating part is inserted into the above-mentioned mating cavity, the pin and the socket body form an electrical connection; the rubber wire sealing body is assembled in the rear part of the plug shell, and the outer wall of the rubber wire sealing body forms a seal with the inner wall of the plug shell. The cable passes through the rubber wire sealing body and forms a seal with the outer wall of the cable. The outer periphery and inner wall of the rubber wire sealing body adopt multiple undulating sealing parts to increase the sealing ability; the plug tail cover is clamped on the rear part of the head shell to fix the rubber wire sealing body in the space at the rear end of the plug shell.

[0053] The metal crimping ring is located between the rubber sealing body and the front plastic part of the plug. The crimping ring is circular, and the inner diameter of the crimping ring is slightly larger than the outer diameter of the cable shielding layer, so that it is convenient to put it on the cable shielding layer, and then the shielding layer is crimped onto the crimping ring; the crown spring includes two unclosed circular fixing rings 27, the two fixing rings are of the same size, and the two fixing rings are connected by a number of spaced connecting pieces 28, the middle part of each connecting piece bulges inward, and the caliber formed by the bulge is smaller than the outer diameter of the crimping ring. The crown spring is assembled at the tail position in the plug shell, that is, between the rubber sealing body and the rear end face of the front plastic part of the plug. When the crimping ring is not installed, at least two fixing rings must form contact with the inner wall of the plug shell; when the crimping ring passes through the crown spring, the crimping ring props up the crown spring bulge 29 outward from the inside of the crown spring, so that the outer wall of the connecting piece is in close contact with the inner wall of the plug shell, so as to increase the sufficient contact surface between the crown spring and the plug shell, and avoid shielding failure caused by poor contact at this point. Through the use of crown springs, 360° fully enclosed shielding can be achieved, with fewer components and fewer matching points, reducing the risk of shielding failure.

[0054] A metal elastic body 30 is provided between the socket shell and the plug shell to form an electrical connection between the two when the two are assembled in place. The provision of the metal elastic body enables an effective connection between the socket shell and the plug shell, and enables the entire connector to have a shielding capability; the metal elastic body is bent from a piece of metal sheet into an unclosed circular shape, and is in an undulating corrugated shape when viewed from the side, so that the metal elastic body has a strong elasticity, and the corrugated shape also enables the metal elastic body to have more contact surfaces with the plug shell and the socket shell; specifically, the metal elastic body is assembled at the bottom of the annular insertion cavity 16, and after the metal elastic body is inserted into the space, it is stuck at the bottom.

[0055] The rear plastic part of the plug is assembled to the tail part in the front plastic part of the plug, and the jack body is confined in the jack body assembly cavity in the front plastic part of the plug; the conductor of the cable is electrically connected to the jack body, and the tail part in the front plastic part of the plug has a creepage portion 31 extending toward the tail part to ensure a safe distance between adjacent jack bodies and between the jack body and the plug shell. The rear plastic part of the plug has a top claw 32, which is pressed against the rear end of the jack body, so that the jack body is firmly assembled in the front plastic part of the plug.

[0056] A hook 33 is arranged on the periphery of the front plastic part of the plug, and a slot 3301 for the hook to be inserted into is arranged on the inner wall of the plug shell. The depth of the hook inserted into the slot is greater than 0.5mm to ensure that the front plastic part of the plug is firmly installed in the plug shell.

[0057] The outer periphery of the plug housing is provided with an annular sealing groove 34, in which an annular plug-in seal 35 is installed; after the plug-in seal is installed in the annular sealing groove, the outer periphery of the plug-in seal is higher than the outer periphery of the plug housing; when the socket housing and the plug housing are plugged in, the outer periphery of the plug-in seal contacts the inner wall of the socket housing to form a seal. The sealing structure is arranged between the outer wall of the plug housing and the inner wall of the socket housing, which can enhance the sealing ability of the two after plugging in.

[0058] A stopper 36 is provided in the rear of the plug shell to form a stop for the inner end surface of the rubber sealing body installed from the rear, and the other side of the stopper forms a stop for the crown spring. A first positioning column 37 inserted into the rubber sealing body for positioning is fixedly provided on the stopper, and a second positioning column 38 is provided on the outer end surface of the rubber sealing body, and a positioning hole 39 for inserting the second positioning column is provided on the plug tail cover. The provision of the positioning column can prevent the positive and negative cables from being installed in reverse during assembly.

[0059] The plug tail cover is clamped on the rear of the plug shell. The plug tail cover has a cable hole 40 for the cable to pass through. The outer end surface of the plug tail cover is located around the cable hole and extends outward to form a reinforcement structure. The reinforcement structure includes an annular portion 41 extending outward to surround the cable hole, and reinforcement portions 42 distributed around the annular portion. The reinforcement portion is located between the outer end surface of the plug tail cover and the outer peripheral surface of the annular portion, and supports the annular portion. This structure can effectively support the cable and prevent the cable from shaking at the tail cover, which affects the sealing ability.

[0060] The locking mechanism includes a locking sleeve 43 with a circular cavity inside, a protrusion 44 for increasing friction on the outer periphery of the locking sleeve to facilitate the rotation of the locking sleeve, a stop ring platform 45 is provided in the middle of the locking sleeve, a shift ring platform 46 is provided on the outside of the plug shell to cooperate with the stop ring platform, one end of the locking sleeve is sleeved on the plug shell; a spiral groove 47 is provided in the other end of the locking sleeve, a positioning groove 48 is provided at the tail of the spiral groove, a through hole 49 connected to the positioning groove is provided on the outer wall of the locking sleeve, and a positioning portion 50 is provided on the socket shell to be inserted into the spiral groove and move along the trajectory of the spiral groove to the positioning groove. Through the provision of the through hole 49, it is possible to observe from the outside whether the positioning portion is in the positioning groove, that is, whether the locking sleeve locks the plug shell and the socket shell in place.

[0061] The high-voltage connector also includes a signal feedback structure, which includes a U-shaped signal pin 51 and a signal jack body 52. ​​The signal pin is assembled in the front plastic part of the plug, and then is tightened and limited in the front plastic part of the plug through the top block 53 on the rear plastic part of the plug; the two signal jack bodies are assembled in the front plastic part of the socket; when the socket and the plug are plugged together, the signal pin is inserted into the signal jack body to form a signal loop, and when the socket and the plug are plugged together, a signal output is generated to facilitate the detection of whether the pin and the jack body are assembled in place.

[0062] The inner wall of the socket shell has a T-shaped plug 54, and the outer wall of the front plastic part of the socket has a T-shaped slot 55, into which the T-shaped plug is inserted, and the outer wall of the rear plastic part of the socket has a slot 56, and the front plastic part of the socket and the rear plastic part of the socket are sequentially installed into the socket shell, and the T-shaped plug is sequentially inserted into the T-shaped slot and the slot to ensure that the front plastic part of the socket and the rear plastic part of the socket are accurately assembled in place, and the two can be prevented from rotating in the socket shell, thereby enhancing the structural stability. This structure also simplifies the assembly process of the front plastic part and the rear plastic part of the socket.

[0063] In order to ensure the assembly accuracy between the socket shell and the plug shell, an axial plug block 57 is provided on the outer periphery of the insertion end of the plug shell, and a corresponding axial slot 58 is provided on the inner wall of the socket shell. When the plug is inserted into the socket, the axial plug block is inserted into the axial slot to ensure the assembly between the plug and the socket. At the same time, it can also ensure the precise alignment assembly between the pin and the socket body to avoid damage caused by collision of the pin during assembly due to assembly misalignment.

[0064] Similarly, an alignment groove 59 is provided on the outer wall of the front plastic part of the plug, and an alignment plug is provided in the plug shell. During assembly, the alignment plug is inserted into the alignment groove to ensure that the front plastic part of the plug is accurately installed in the plug shell.

[0065] The above-mentioned embodiment drawings show a two-core structure, namely, two pins and two socket bodies. Of course, a three-core structure or more can also be provided as required.

Claims

1. A high voltage connector, comprising a socket, a plug, and a locking mechanism for locking the socket and the plug after they are plugged together, characterized in that: The socket comprises a socket shell, a socket front plastic part, and a socket rear plastic part; and one or more pins assembled in the socket housing; The front plastic part of the socket and the rear plastic part of the socket are assembled in the socket shell, the front plastic part of the socket has a mating cavity corresponding to the number of pins, the fixed end of the pin is limited between the front plastic part of the socket and the rear plastic part of the socket, and the free end of the pin extends into the mating cavity; the plug includes a plug shell, a front plastic part of the plug, a rear plastic part of the plug, a crimping ring, a crown spring, a rubber sealing body, a plug tail cover, a jack body corresponding to the number of pins, and a cable that forms an electrical connection with the jack body one by one; the front plastic part of the plug is assembled in the plug shell, the jack body is assembled in the front end of the front plastic part of the plug, and the front plastic part of the plug The front end has a plug-in portion that is inserted into the above-mentioned plug-in cavity in a one-to-one manner. When the plug-in portion is inserted into the above-mentioned plug-in cavity, the pin and the socket body form an electrical connection; the rubber sealing wire body is assembled in the rear part of the plug shell, and the outer wall of the rubber sealing wire body forms a seal with the inner wall of the plug shell. The cable passes through the rubber sealing wire body and forms a seal with the outer wall of the cable; the rear plastic part of the plug is assembled in the rear part of the front plastic part of the plug; the crimping ring is crimped on the shielding layer of the cable, and the crown spring is assembled at the rear position in the plug shell. The crimping ring is inserted in the crown spring, and the crimping ring props up the crown spring from the inside of the crown spring so that the outer periphery of the crown spring is aligned with the plug. The inner wall of the shell is in close contact; the socket shell, plug shell, crimping ring and crown spring are metal parts; a metal elastic body is arranged between the socket shell and the plug shell to form an electrical connection between the two when the two are assembled in place; the tail part in the front plastic part of the plug has a creepage part extending toward the tail to ensure a safe distance between the jack bodies; the locking mechanism includes a locking sleeve with a circular cavity inside, a stop ring platform is arranged in the middle of the locking sleeve, a gear ring platform cooperating with the stop ring platform is arranged outside the plug shell, and one end of the locking sleeve is sleeved on the plug shell; the lock A spiral groove is arranged in the other end of the tight sleeve, a locking groove is arranged at the tail of the spiral groove, a through hole connected with the locking groove is arranged on the outer wall of the locking sleeve, and a locking portion which is inserted into the spiral groove and moves into the locking groove along the trajectory of the spiral groove is arranged on the socket shell; a stopper is arranged in the tail of the plug shell to form a stopper for the inner end surface of the rubber sealing wire body installed from the tail, a first positioning column inserted into the rubber sealing wire body to form a positioning is fixedly arranged on the stopper, a second positioning column is arranged on the outer end surface of the rubber sealing wire body, and a positioning hole for inserting the second positioning column is provided on the plug tail cover.

2. The high voltage connector according to claim 1, characterized in that: The outer periphery of the plug housing is provided with an annular sealing groove, in which an annular plug-in seal is installed; after the plug-in seal is installed in the annular sealing groove, the outer periphery of the plug-in seal is higher than the outer peripheral surface of the plug housing; When the socket housing and the plug housing are plugged into each other, the outer periphery of the plugging seal contacts the inner wall of the socket housing to form a seal.

3. The high voltage connector according to claim 1, characterized in that: The high voltage connector also includes a signal feedback structure, which includes a signal pin and a signal jack body, wherein the signal pin is assembled in the plug housing, and the signal jack body is assembled in the socket housing; When the socket and the plug are plugged together, the signal pin is inserted into the signal socket body to form a signal loop.

4. The high voltage connector according to claim 1, characterized in that: The plug tail cover is clamped on the rear part of the plug shell, and the plug tail cover has a cable hole for the cable to pass through. The outer end surface of the plug tail cover is located around the cable hole and extends outward to form a reinforcement structure. The reinforcement structure includes an annular portion extending outward to surround the cable hole, and reinforcement portions distributed around the annular portion. The reinforcement part is located between the outer end surface of the plug tail cover and the outer peripheral surface of the annular part, and forms a support shape for the annular part.

5. The high voltage connector according to claim 1, characterized in that: A hook is arranged on the outer periphery of the front plastic part of the plug, and a slot for the hook to be inserted into is arranged on the inner wall of the plug shell, and the depth of the hook being inserted into the slot is greater than 0.5 mm.

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