Handle locking two-core single-end waterproof high-voltage connector

Abstract

The invention discloses a handle-locked two-core single-ended waterproof high-voltage connector, which is provided with a handle arranged outside a head shell assembly and used for connecting a plug and a socket, the socket comprises a socket shell, and a socket shielding cover, jacks, a socket outer sealing ring, a socket inner sealing ring, a signal pin assembly and the like which are arranged in the socket shell; through multi-stage waterproof, the socket can independently seal water vapor when the plug and the socket are not plugged in each other. According to the invention, the plug and the socket are plugged and fixed in a quick handle locking manner, so that the reliability of plugging and fixing of the plug and the socket is ensured; the connector socket has an independent waterproof function, and can protect a plate end from water vapor entering to cause damage to a device under a special working condition; a multi-lip sealing ring is adopted for waterproof sealing, and compared with a conventional O-shaped sealing ring for single-layer protection, the structure is more reliable, and good sealing performance and anti-aging performance are achieved; and through a shielding conduction structure, the whole connector has good electromagnetic shielding effectiveness and mechanical strength.

Description

Technical Field

[0001] The invention relates to the technical field of connectors, in particular to a handle-locked two-core single-ended waterproof high-voltage connector. Background Art

[0002] Power connectors have been widely used in various power transmission systems as power connection interfaces. In power supply systems, the waterproof, loose-proof and vibration-proof functions of power connectors are very important, especially for outdoor power supply systems. At present, automotive high-voltage connectors are required to have compact structure, small size, easy operation, vibration resistance, and safe and reliable electrical connection. The connector has the ability to withstand high voltage to ensure its safe operation for a long time and avoid accidents caused by discharge.

[0003] However, the main parts of the current high-current connectors are processed by mechanical processing, which is costly and complex, and difficult to control. Due to the requirements of mechanical processing, traditional technology cannot add slightly complex structures and cannot meet new functional requirements. The overall size of the connector is large, which is not easy to arrange in the vehicle space; and the O-ring is usually used for single-layer protection, and the sealing protection is not strong; and it does not have the separate waterproof function of the socket end, and cannot guarantee that under special working conditions, the board end is protected from water vapor entering and causing damage to the device. Summary of the invention

[0004] In order to solve the above technical problems, the purpose of the present invention is to provide a handle locking two-core single-ended waterproof high-voltage connector, which has good shielding and conduction performance and can achieve single-ended waterproof effects of the socket.

[0005] The present invention solves the above problems through the following technical solutions:

[0006] A handle-locked two-core single-ended waterproof high-voltage connector, comprising:

[0007] The plug includes a plug housing assembly, a tail cover assembly, a signal jack, a handle and a pin terminal, wherein the tail cover assembly is installed at the rear end of the plug housing assembly, the signal jack and the pin terminal are arranged inside the plug housing assembly, and the handle is arranged outside the head housing assembly for connecting the plug and the socket;

[0008] A socket, comprising a socket shell, a socket shielding cover, a socket jack, a socket outer sealing ring, a socket inner sealing ring and a signal pin assembly arranged in the socket shell; the front end of the socket shell is mounted on a box panel and is formed with an outer sealing ring groove and an inner sealing ring groove for accommodating the socket outer sealing ring and the socket inner sealing ring; the socket shielding cover is arranged between the outer sealing ring groove and the inner sealing ring groove; the socket outer sealing ring and the socket inner sealing ring are interference-fitted with the box panel to prevent external water vapor from entering the box through the gap between the socket shielding cover and the socket shell, thereby achieving primary waterproofing; a sheet-type pin terminal is connected to the jack, and a jack sealing ring is formed or sleeved on the outside of the jack by means of rubber encapsulation to prevent water vapor from entering from the jack, thereby achieving secondary waterproofing;

[0009] The signal needle assembly includes: a signal sealing body, and a signal needle arranged in the signal sheath; the signal sealing body abuts against the front end of the signal sheath, and raised lips are arranged on the inner and outer sides. When the signal cable is installed in the signal sealing body, the signal cable and the socket shell compress the raised lips on the inner and outer sides of the signal sealing body at the same time, and waterproofly seal the signal cable part to achieve three-level waterproofing; through multi-level waterproofing, it is ensured that when the plug and the socket are not plugged in, the socket can be sealed against water vapor alone.

[0010] As a further improvement, the front end of the socket housing is mounted on the box panel by screws; and / or

[0011] The pin terminal is provided with a hooking through hole for installing a tooth sleeve, and the tooth sleeve is installed into the pin insulator of the plug housing assembly by limiting and interference fit to prevent the pin terminal from retreating backwards.

[0012] As a further improvement, the socket shield is arranged in the rear end of the socket shell for connecting with the plug shield of the plug housing assembly and the box panel;

[0013] and / or, the jack is inserted into the socket housing from the front end thereof and connected to the pin terminal in the plug;

[0014] And / or, one end of the signal pin is connected to the signal cable, and the other end is connected to the signal jack in the plug housing assembly.

[0015] As a further improvement, the jack is connected to the pin terminal via a claw structure.

[0016] As a further improvement, the plug housing assembly includes: a plug shell, a plug shielding cover, a pin insulator, a baffle and a plug sealing ring which are sequentially arranged from the outside to the inside; the baffle is installed at the front end of the plug shell, and the plug sealing ring with a raised lip is arranged between the baffle and the plug shell to realize the sealed assembly of the socket shell and the plug shell.

[0017] As a further improvement, a card slot opening toward the front end, a first locking protrusion and a second locking protrusion are formed on the side of the plug housing, and the card slot is used to cooperate with the third locking protrusion of the socket housing;

[0018] The handle has a first locking opening, a second locking opening and a third locking opening. When the plug shell and the socket shell are plugged together, the third locking protrusion is inserted into the slot, the first locking opening of the handle is sleeved outside the first locking protrusion, and the second locking opening is sleeved outside the third locking protrusion and has a certain degree of freedom, so that the handle can rotate around the second locking protrusion; the handle is rotated to make the third locking opening cooperate with the second locking protrusion to achieve the first locking of the plug shell and the socket shell.

[0019] As a further improvement, a slidable secondary locking block is provided outside the plug housing. When the handle completes the first locking, the secondary locking block is pushed to cooperate with the handle to prevent the handle from rotating and causing the plug and the socket to separate.

[0020] As a further improvement, the tail cover assembly includes: a shielding inner sleeve, a shielding outer sleeve and a tail cover, the tail cover is connected to the plug shell of the plug shell assembly, one end of the cable passes through the tail cover assembly and is connected to the pin terminal in the plug shell, the shielding inner sleeve is inserted into the outer rubber of the cable, the shielding outer sleeve is sleeved outside the shielding inner sleeve, the shielding wire of the cable is turned outward and crimped between the shielding inner sleeve and the shielding outer sleeve, so as to realize the conduction between the shielding layer of the cable and the shielding inner sleeve and the shielding outer sleeve.

[0021] As a further improvement, the tail cover assembly also includes: a gasket, a wire sealing body and a wire clamp. The gasket and the wire clamp are respectively arranged on the front and rear sides of the wire sealing body. The tail cover presses the wire clamp, the wire sealing body and the gasket into the tail cover so that the rear side wall of the plug shell of the plug shell assembly contacts the wire sealing body. When the cable is installed into the wire sealing body, the plug shell and the cable compress the raised lips on the inside and outside of the wire sealing body respectively to achieve a waterproof seal at the plug cable part.

[0022] As a further improvement, the front and rear ends of the plug shield of the plug housing assembly are both provided with elastic structures; when the cable is crimped with the shielding inner sleeve and the shielding outer sleeve and then installed in the plug, the square inner side or outer side of the shielding outer sleeve is connected to the elastic structure at the rear end of the plug shield; the elastic structure at the front end of the plug shield is connected to the socket shield, so as to achieve shielded conduction between the plug and the socket; and / or

[0023] The front end of the socket shielding cover is provided with an elastic structure which is in elastic contact with the box panel, so as to realize shielding conduction between the socket and the box panel.

[0024] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0025] (1) The plug and socket of the present invention are fixed together by means of a quick locking handle, which ensures the reliability of the plug and socket fixing. The socket of the connector has a separate waterproof function, which can protect the board end from water vapor entering and causing damage to the device under special working conditions. The connector has high cable compatibility and can adapt to a wide range of wire diameters.

[0026] (2) The plug and socket of the present invention, the cable seal and the socket to the board end, i.e. the front end, all adopt multi-lip sealing rings, which are more reliable in structure than the conventional single-layer protection of O-rings, and have good sealing and anti-aging properties.

[0027] (3) The pin terminals and sockets of the present invention adopt sheet terminals, which have lower costs and higher production efficiency; the overall size of the entire connector is small, the structure is more compact, and it is easy to arrange the space of the whole vehicle; the signal part adopts modular and platform design, which reduces the number of parts and facilitates customer assembly;

[0028] (4) The present invention uses a shielded conductive structure to ensure that the entire connector has good electromagnetic shielding effectiveness and mechanical strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the plug structure of a handle-locked two-core single-ended waterproof high-voltage connector of the present invention;

[0030] Figure 2 It is a schematic diagram of the socket structure of a handle-locked two-core single-ended waterproof high-voltage connector of the present invention;

[0031] Figure 3 It is a schematic diagram of the matching between the plug and the cable of the present invention;

[0032] Figure 4 It is a schematic diagram of the cooperation between the high-voltage connector of the present invention, the cable and the box panel;

[0033] Figure 5 It is a cross-sectional view of the matching between the socket and the box panel of the present invention;

[0034] Figure 6 It is a schematic diagram of the installation of the handle and the secondary locking block of the present invention.

[0035] Reference numerals:

[0036] 1. Baffle; 2. Signal jack; 3. Plug sealing ring; 4. Handle; 41. First locking hole; 42. Second locking hole; 43. Third locking hole; 5. Secondary locking block; 6. Plug shell; 61. First locking protrusion; 62. Second locking protrusion; 63. Fourth locking protrusion; 64. Slot; 7. Tooth sleeve; 8. Plug shielding cover; 9. Pin insulator; 10. Pin terminal; 11. Shielding inner sleeve; 12. Shielding Jacket; 13. Gasket; 14. Wire sealing body; 15. Wire clamp; 16. Tail cover; 17. Screw sleeve; 18. Socket shielding cover; 19. Socket shell; 191. Third locking protrusion; 20. Socket; 21. Socket outer sealing ring; 22. Socket inner sealing ring; 23. Signal pin sheath; 24. Signal pin; 25. Signal wire sealing body; 26. Cable; 27. Socket sealing ring; 28. Signal cable; 29. ​​Box panel. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0038] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0039] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0041] In addition, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or display that includes a series of steps or elements is not necessarily limited to those steps or elements explicitly listed but may include other steps or elements not explicitly listed or inherent to such process, method, product, or display.

[0042] The following will be combined Figure 1-6 , a handle locking two-core single-ended waterproof high-voltage connector involved in the embodiment of the present application is described in detail. It is worth noting that the following embodiments are only used to explain the present application and do not constitute a limitation of the present application.

[0043] Example

[0044] Combined with Figure 1-6 As shown, a handle locking two-core single-ended waterproof high-voltage connector comprises:

[0045] The plug comprises a plug housing assembly, a tail cover assembly, a signal jack 2, a handle 4 and a pin terminal 10, wherein the tail cover assembly is installed at the rear end of the plug housing assembly, the signal jack 2 and the pin terminal 10 are arranged inside the plug housing assembly, and the handle 4 is arranged outside the head housing assembly for connecting the plug and the socket;

[0046] The socket comprises a socket shell 19, and a socket shielding cover 18, a socket 20, a socket outer sealing ring 21, a socket inner sealing ring 22 and a signal pin assembly arranged in the socket shell 19; the front end of the socket shell 19 is mounted on a box panel 29 and is formed with an outer sealing ring groove and an inner sealing ring groove for accommodating the socket outer sealing ring 21 and the socket inner sealing ring 22; the socket shielding cover 18 is arranged between the outer sealing ring groove and the inner sealing ring groove; the socket outer sealing ring 21 and the socket inner sealing ring 22 are interference-fitted with the box panel 29 to prevent external water vapor from entering the box through the gap between the socket shielding cover 18 and the socket shell 19, thereby achieving primary waterproofing; the sheet-type pin terminal 10 is connected to the socket 20, and a socket sealing ring 27 is formed on the outside of the socket 20 by encapsulation to prevent water vapor from entering from the socket, thereby achieving secondary waterproofing;

[0047] The signal needle assembly includes: a signal sealing body 25, and a signal needle 24 arranged in the signal needle sheath 23; the signal sealing body 25 abuts against the front end of the signal needle sheath 23, and raised lips are arranged on the inner and outer sides. When the signal cable 28 is installed in the signal sealing body 25, the signal cable 28 and the plug housing assembly compress the raised lips on the inner and outer sides of the signal sealing body 25 at the same time, and waterproofly seal the signal cable part to achieve three-level waterproofing; through multi-level waterproofing, it is ensured that when the plug and the socket are not plugged in, the socket can be sealed against water vapor alone.

[0048] In a specific embodiment, the plug includes: a baffle 1, a signal jack 2, a plug sealing ring 3, a handle 4, a secondary lock block 5, a plug shell 6, a tooth sleeve 7, a plug shielding cover 8, a pin insulator 9, a pin terminal 10, a shielding inner sleeve 11, a shielding outer sleeve 12, a gasket 13, a sealing body 14, a wire clamp 15 and a tail cover 16, etc., wherein the plug shell 6, the plug shielding cover 8, the pin insulator 9 are sequentially sleeved from the outside to the inside, and the baffle 1 and the plug sealing ring 3 form a plug housing assembly, and the shielding inner sleeve 11, the shield The shielding sleeve 12, the gasket 13, the sealing body 14, the wire clamp 15 and the tail cover 16 are installed to form a tail cover assembly. The signal jack 2 is arranged in the plug housing assembly for connecting with the signal pin 24 of the socket. The middle part of the pin terminal 10 is provided with a gear sleeve 7 to prevent the pin terminal 10 from retreating in the plug housing assembly; the pin terminal 10 is a sheet structure, and the two ends are respectively connected to the cable and the socket jack 20; the handle 4 is used to connect the plug and the socket, and the handle 4 is prevented from retreating by a secondary lock block 5 installed outside the plug housing 6.

[0049] The plug housing assembly, the plug housing 6, the plug shielding cover 8, and the pin insulator 9 are sequentially sleeved from the outside to the inside, so that the plug shielding cover 8 and the pin insulator 9 are limitedly installed in the plug housing 6, the baffle 1 is installed at the front end of the plug housing 6, and a plug sealing ring 3 is provided between the baffle 1 and the plug housing 6, refer to the attached Figure 4 The plug seal ring 3 is provided with a raised lip, and the plug seal ring 3 is compressed when the plug and the socket shell 19 are mated with each other to achieve waterproof sealing of the head seat. The left and right sides of the plug shell 6 are respectively formed with a card slot 64 opened to the front end, a first locking protrusion 61 and a second locking protrusion 62, and the card slot 64 is used to cooperate with the third locking protrusion 191 of the socket shell 19. The handle 4 has a first locking opening 41, a second locking opening 42 and a third locking opening 43. When the plug housing 6 is plugged into the socket housing 19, the third locking protrusion 191 is inserted into the card slot 64, the first locking opening 41 of the handle 4 is sleeved outside the first locking protrusion 61, and the second locking opening 42 is sleeved outside the third locking protrusion 191 with a certain degree of freedom, so that the handle 4 can rotate around the first locking protrusion 61, and one end of the third locking opening 43 is pressed down to engage the spring opening of the third locking opening 43 with the second locking protrusion 62 to achieve the first locking of the plug housing 6 and the socket housing 19. Preferably, a slidable secondary locking block 5 is provided above the plug housing 6. When the handle is rotated to the bottom, that is, the first locking is completed, the secondary locking block 5 is pushed so that the secondary locking block 5 presses the convex point on the handle to prevent the handle from rotating counterclockwise to cause the plug and the socket to separate.

[0050] Tail cover assembly, one end of the cable passes through the tail cover assembly and is connected to the pin terminal 10, and the front end of the shielding jacket 12 is plugged and fixed with the plug shielding cover 8; shielding conduction structure: the shielding inner sleeve 11 is arranged in the shielding jacket 12, and the front and rear sides of the sealing body 14 are circumferentially flush with gaskets 13 and wire clamps 15 respectively, and the tail cover 16 is arranged on the rear side of the wire clamp 15, and the hooks on the upper and lower sides of the tail cover 16 cooperate with the fourth locking protrusion 63 on the plug shell 6 to press the gasket 13, the sealing body 14, and the wire clamp 15 between the tail cover 16 and the plug shell 6, so that the rear side wall of the plug shell 6 contacts the sealing body 14, and the inner and outer sides of the sealing body 14 are provided with raised lips. When the cable 26 is installed in the sealing body 14, the plug shell 6 and the cable 26 simultaneously compress the inner and outer raised lips on the sealing body 14 to achieve waterproof sealing of the plug cable part. At the same time, the inclined surface on the tail cover and the wire clamp are interference fit to close the wire clamp, and the wire clamp clamps the cable to prevent the cable from being greatly deflected. During installation, the shielding inner sleeve 11 is installed on the outer rubber of the cable 26. After the outer rubber of the cable 26 is peeled off, the shielding wire is turned outward to the outside of the shielding inner sleeve 11, and then the shielding outer sleeve 12 is installed from the front end. The round end of the shielding outer sleeve 12 presses the cable shielding wire. At this time, the inner and outer shielding sleeves are crimped at the same time with a hexagonal crimping tool. After the inner and outer shielding sleeves are deformed, they are pressed on the cable to achieve the conduction between the cable shielding layer and the shielding inner and outer sleeves. An elastic structure is provided at the rear end of the plug shielding cover 8. When the cable is crimped with the shielding inner sleeve 11 and the shielding outer sleeve 12 and then installed in the plug, the square inner side or outer side of the shielding outer sleeve 12 contacts the elastic structure at the rear end of the plug shielding cover 8, thereby realizing shielding conduction between the shielding sleeve, i.e., the shielding outer sleeve 12 and the shielding inner sleeve 11, and the plug; an elastic structure is also provided at the front end of the plug shielding cover 8 to contact with the socket shielding cover 18, thereby realizing shielding conduction between the head seat; an elastic structure is also provided at the front end of the socket shielding cover 18, thereby elastically contacting with the box panel 29, thereby realizing shielding conduction between the socket and the box panel. Through the above three parts, shielding conduction from the shielding layer of the cable to the box panel is realized.

[0051] As a preference, refer to the attached Figure 3 The pin terminal 10 can be ultrasonically welded with the copper and aluminum cables. A hooking through hole is set on the pin terminal 10, and the tooth sleeve 7 is installed into the pin insulator 9 by limiting and interference. After the pin terminal is welded to the cable, the plug is installed from the tail, and the hooking through hole on the pin terminal 10 is inserted into the tooth sleeve 7, so that the pin terminal is fixed and does not retreat backward.

[0052] The socket comprises: a screw sleeve 17, a socket shielding cover 18, a socket shell 19, a jack 20, a socket outer sealing ring 21, a socket inner sealing ring 22, a signal pin sheath 23, a signal pin 24 and a signal sealing wire body 25, etc. The socket outer sealing ring 21 and the socket inner sealing ring 22 are arranged in the front end of the socket shell 19, and are respectively matched with the box panel 29 for sealing; the screw sleeve 17 is arranged on the socket shell 19 for connecting with the box panel 29; the socket shielding cover 18 is arranged at the rear end of the socket shell 19 for connecting with the plug shielding cover 8 and the box panel 29; the jack 20 is connected from the socket The front end of the shell 19 is inserted into the socket shell 19 and connected to the pin terminal 10 in the plug. Preferably, the socket 20 is a sheet-type structure and is connected to the pin terminal 10 through a claw structure; a signal pin 24 is provided with a signal pin sheath 23 on one end, and the signal pin sheath 23 is abutted against a signal sealing body 25 on the outside of the end away from the signal pin 24. The signal pin 24 is provided with a signal pin sheath 23 on one end which can pass through the signal sealing body 25 to waterproof the signal pin 24, and the signal pin assembly is composed of the signal pin 24, the signal sealing body 25 and the signal pin sheath 23.

[0053] The socket is waterproofed at one end: the socket outer sealing ring 21 is installed in the outer sealing ring groove of the socket shell 19. When the socket shell 19 is installed on the box panel 29 by screwing the screw sleeve 17, the socket outer sealing ring 21 in the outer sealing ring groove of the socket shell 19 is compressed to achieve the sealing between the socket shell and the box panel. At this time, the external water vapor enters from the gap between the socket shielding cover 18 and the socket shell 19 and stays between the socket outer sealing ring 21 and the socket inner sealing ring 22, and cannot enter the box; the socket 20 is molded with a socket sealing ring 27 by means of rubber coating to prevent water vapor from entering the box and other parts from the terminal, such as Figure 5 The signal sealing body 25 is provided with raised lips on both the inside and outside. When the signal cable 28 is inserted into the signal sealing body 25, the plug housing 6 and the signal cable 28 simultaneously compress the raised lips on both the inside and outside of the signal sealing body 25 to achieve waterproof sealing of the signal cable part. When the socket with the above three seals is installed on the box, the socket can achieve a separate seal against water vapor when the head seat is not inserted.

[0054] The present invention uses a shielded conduction structure to ensure that the entire connector has good electromagnetic shielding effectiveness and mechanical strength; the plug and the socket are fixed together by a handle quick locking form, which ensures the reliability of the plug and socket fixation; and the plug and socket, cable sealing and socket to board end, i.e. the front end, all adopt multi-lip sealing rings, which are more reliable in structure than the conventional O-ring single-layer protection, and have good sealing and anti-aging properties; the pin terminals adopt sheet terminals, which have lower costs and higher production efficiency; the overall size of the entire connector is small, the structure is more compact, and it is easy to layout the space of the whole vehicle; the signal part adopts a modular and platform design, which reduces the number of parts and facilitates customer assembly; the plug and socket of the connector both have independent waterproof functions, which can protect the board end from water vapor entering and causing damage to the device under special working conditions; the connector cable has high compatibility and can adapt to a wide range of wire diameters.

[0055] Although the present invention is described herein with reference to the illustrative embodiments of the present invention, the above embodiments are only preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and embodiments, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A handle-locked two-core single-ended waterproof high-voltage connector, characterized in that: include: The plug includes a plug housing assembly, a tail cover assembly, a signal jack, a handle and a pin terminal, wherein the tail cover assembly is installed at the rear end of the plug housing assembly, the signal jack and the pin terminal are arranged inside the plug housing assembly, and the handle is arranged outside the head housing assembly for connecting the plug and the socket; A socket, comprising a socket shell, a socket shielding cover, a socket jack, a socket outer sealing ring, a socket inner sealing ring and a signal pin assembly arranged in the socket shell; the front end of the socket shell is mounted on a box panel and is formed with an outer sealing ring groove and an inner sealing ring groove for accommodating the socket outer sealing ring and the socket inner sealing ring; the socket shielding cover is arranged between the outer sealing ring groove and the inner sealing ring groove; the socket outer sealing ring and the socket inner sealing ring are interference-fitted with the box panel to prevent external water vapor from entering the box through the gap between the socket shielding cover and the socket shell, thereby achieving primary waterproofing; a sheet-type pin terminal is connected to the jack, and a jack sealing ring is arranged outside the jack to prevent water vapor from entering from the jack, thereby achieving secondary waterproofing; The signal needle assembly includes: a signal sealing body, and a signal needle arranged in a signal sheath; The signal sealing body is in contact with the front end of the signal sheath, and raised lips are provided on the inside and outside. When the signal cable is installed into the signal sealing body, the signal cable and the socket shell compress the raised lips on the inside and outside of the signal sealing body at the same time, thereby waterproofing and sealing the signal cable part to achieve three-level waterproofing. Multi-level waterproofing ensures that when the plug and socket are not plugged in, the socket can be sealed against water vapor alone.

2. A handle-locked two-core single-ended waterproof high-voltage connector according to claim 1, characterized in that: The front end of the socket housing is mounted on the box panel by screws; and / or The pin terminal is provided with a hooking through hole for installing a tooth sleeve, and the tooth sleeve is installed into the pin insulator of the plug housing assembly by limiting and interference fit to prevent the pin terminal from retreating backwards.

3. A handle-locked two-core single-ended waterproof high-voltage connector according to claim 1, characterized in that: The socket shield is disposed in the rear end of the socket shell and is used to connect with the plug shield of the plug housing assembly and the box panel; and / or, the jack is inserted into the socket housing from the front end thereof and connected to the pin terminal in the plug; And / or, one end of the signal pin is connected to the signal cable, and the other end is connected to the signal jack in the plug housing assembly.

4. A handle-locked two-core single-ended waterproof high-voltage connector according to claim 1, characterized in that: The jack is connected to the pin terminal through a claw structure.

5. A handle-locked two-core single-ended waterproof high-voltage connector according to claim 1, characterized in that: The plug housing assembly comprises: a plug housing, a plug shielding cover, a pin insulator, a baffle and a plug sealing ring which are sequentially sleeved from the outside to the inside; the baffle is installed at the front end of the plug housing, and the plug sealing ring with a raised lip is arranged between the baffle and the plug housing to realize the sealed assembly of the socket housing and the plug housing.

6. A handle-locked two-core single-ended waterproof high-voltage connector according to claim 5, characterized in that: The plug housing has a slot opening toward the front end, a first locking protrusion and a second locking protrusion formed on the side surface thereof, wherein the slot is used to cooperate with the third locking protrusion of the socket housing; The handle has a first locking opening, a second locking opening and a third locking opening. When the plug housing is plugged into the socket housing, the third locking protrusion is inserted into the slot, the first locking opening of the handle is sleeved outside the first locking protrusion, and the second locking opening is sleeved outside the third locking protrusion and has a certain degree of freedom, so that the handle can rotate around the second locking protrusion; The handle is turned to make the third locking opening match the second locking protrusion, thereby realizing the first locking of the plug housing and the socket housing.

7. A handle-locked two-core single-ended waterproof high-voltage connector according to claim 6, characterized in that: A slidable secondary locking block is arranged outside the plug housing. When the handle completes the first locking, the secondary locking block is pushed to cooperate with the handle to prevent the handle from rotating to cause the plug and the socket to separate.

8. A handle-locked two-core single-ended waterproof high-voltage connector according to any one of claims 1 to 7, characterized in that: The tail cover assembly includes: a shielding inner sleeve, a shielding outer sleeve and a tail cover, the tail cover is connected to the plug shell of the plug housing assembly, one end of the cable passes through the tail cover assembly and is connected to the pin terminal in the plug shell, the shielding inner sleeve is inserted into the outer rubber of the cable, the shielding outer sleeve is sleeved outside the shielding inner sleeve, the shielding wire of the cable is turned outward and crimped between the shielding inner sleeve and the shielding outer sleeve, so as to realize the conduction between the shielding layer of the cable and the shielding inner sleeve and the shielding outer sleeve.

9. A handle-locked two-core single-ended waterproof high-voltage connector according to claim 8, characterized in that: The tail cover assembly also includes: a gasket, a wire sealing body and a wire clamp. The gasket and the wire clamp are respectively arranged on the front and rear sides of the wire sealing body. The tail cover presses the wire clamp, the wire sealing body and the gasket into the tail cover so that the rear side wall of the plug shell of the plug shell assembly contacts the wire sealing body. When the cable is installed in the wire sealing body, the plug shell and the cable compress the raised lips inside and outside the wire sealing body respectively to achieve waterproof sealing of the plug cable part.

10. A handle-locked two-core single-ended waterproof high-voltage connector according to claim 8, characterized in that: The plug shield of the plug housing assembly is provided with elastic structures at the front and rear ends; when the cable is crimped with the shielding inner sleeve and the shielding outer sleeve and then installed in the plug, the square inner side or outer side of the shielding outer sleeve is connected to the elastic structure at the rear end of the plug shield; the elastic structure at the front end of the plug shield is connected to the socket shield, so as to achieve shielded conduction between the plug and the socket; and / or The front end of the socket shielding cover is provided with an elastic structure which is in elastic contact with the box panel, so as to realize shielding conduction between the socket and the box panel.

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