Push-pull locking two-core circular high-voltage connector

Abstract

The utility model discloses a push-pull locking two-core circular high-voltage connector, which comprises a plug, a socket and a cable, and is characterized in that the plug comprises a secondary lock catch, an end cover, a signal jack, a hole insulator, a plug shielding cover, a jack terminal, a plug sealing ring, a plug shell, a shielding outer sleeve, a shielding inner sleeve, a gasket, a wire sealing body and a tail cover; the socket comprises a pin insulator, a socket shielding cover, a socket shell, a threaded sleeve, a socket sealing ring, a power pin, a signal pin A and a signal pin B. The metal shielding cover is fully wrapped, so that the electromagnetic shielding effectiveness and the mechanical strength are good; the plug and the socket are fixed in the form of primary locking and circular push-pull secondary locking, so that the reliability of plug-in fixation of the plug and the socket is ensured.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage connectors, and in particular to a push-pull locking two-core circular high-voltage connector. Background Technology

[0002] With the development of new energy vehicle technology, the requirements for the reliability, protection level, vehicle assembly efficiency, and wiring harness production efficiency of high-voltage connectors are becoming increasingly stringent, as are the requirements for aesthetic appearance. The first-generation high-voltage connector technology was modified from connector products used in military, communications, and other fields, and it had the following shortcomings: it could not meet the requirements for secondary locking; some products could meet the requirements for secondary locking, but the use of plastic clips to achieve the secondary locking function added an extra part, and the overall product was not aesthetically pleasing. Utility Model Content

[0003] The purpose of this invention is to design a push-pull locking two-core circular high-voltage connector to solve the above problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] This utility model provides a push-pull locking two-core circular high-voltage connector, including a plug, a socket, and a cable. The plug includes a secondary locking buckle, an end cap, a signal jack, a hole insulator, a plug shield, a jack terminal, a plug sealing ring, a plug housing, a shielding outer sleeve, a shielding inner sleeve, a gasket, a sealing wire, and a tail cap. A hollow cavity is formed by the plug housing and the tail cap. A hole insulator, a jack terminal, a signal jack on the hole insulator are disposed in the hollow cavity. The cable passes through the tail cap and the sealing wire, and is crimped to the shielding outer sleeve and the shielding inner sleeve before extending into the plug housing and connecting to the jack terminal. A plug sealing ring is provided inside the plug housing for abutting against the end cap. The secondary locking buckle is disposed on the plug housing near the end cap. The plug shield is disposed around the hole insulator and is sequentially connected to the shielding outer sleeve and the shielding inner sleeve. A gasket is disposed between the plug housing and the tail cap.

[0006] The socket includes a pin insulator, a socket shield, a socket housing, a screw sleeve, a socket sealing ring, a power pin, a signal pin A, and a signal pin B. The socket has a hollow cavity formed by the socket housing, and the pin insulator, the power pin and signal pin group A, and the signal pin B are disposed inside the socket housing. A socket sealing ring is provided at the end face of the socket housing. A screw sleeve is provided between the socket housing flange and the locking screw. The front end of the socket shield is connected to the plug shield, and the rear end is connected to the box panel.

[0007] As a preferred embodiment of this utility model, a plug sealing ring is provided at the front end of the plug housing, and a protruding lip is provided on the plug sealing ring. When the plug assembly and the socket housing are mated, the plug sealing ring is compressed to achieve waterproof sealing when the head and socket are inserted.

[0008] As a preferred embodiment of this utility model, the tail side wall of the plug housing contacts the sealing body, and the inner and outer sides of the sealing body are provided with protruding lips. When the cable is inserted into the sealing body, the plug housing and the cable simultaneously compress the inner and outer protruding lips on the sealing body, thereby achieving a waterproof seal at the plug and cable parts.

[0009] As a preferred embodiment of this utility model, the socket sealing ring is inserted into the socket housing sealing ring groove. When the socket housing is installed onto the cabinet panel by screws, the socket sealing ring in the socket housing sealing ring groove is compressed, thereby achieving a seal between the socket and the cabinet.

[0010] As a preferred embodiment of this utility model, the shielding conduction is achieved as follows: the inner shielding sleeve is inserted into the outer sheath of the cable. After the outer sheath of the cable is stripped, the shielding wire is folded out onto the inner shielding sleeve, and then the outer shielding sleeve is inserted from the front end. The circular end of the outer shielding sleeve presses down on the cable shielding wire. At this time, a hexagonal crimping tool is used to crimp the inner and outer shielding sleeves simultaneously. After the inner and outer shielding sleeves deform, they are pressed tightly onto the cable, achieving conduction between the cable's shielding layer and the inner and outer shielding sleeves. An elastic structure is provided at the rear end of the plug shielding cover. When the cable is crimped with the inner and outer shielding sleeves and inserted into the plug, the cylindrical part of the outer shielding sleeve contacts the elastic structure at the rear end of the plug shielding cover, achieving shielding conduction between the shielding sleeve and the plug. An elastic structure is provided at the front end of the plug shielding cover and contacts the socket shielding cover, achieving shielding conduction between the head and the socket. An elastic structure is provided at the rear end of the socket shielding cover and elastically contacts the inner hole of the box, achieving shielding conduction between the socket and the box panel. Through the above three parts, shielding conduction from the cable's shielding layer to the box panel is achieved.

[0011] As a preferred embodiment of this utility model, the two pin terminals are designed with barbed structures, and the pin terminals are fixed by pressing into the pin insulator through interference fitting, so that they do not retract backward.

[0012] As a preferred embodiment of this utility model, the two plug terminals are designed with spring wings. After the plug terminals are crimped with cables and shielding inner and outer sleeves, the needle insulator is inserted. The needle insulator is designed with a hanging platform. After the insertion is in place, the spring wings pop open and hang on the needle insulator hanging platform to fix the plug terminals and prevent them from moving backward.

[0013] As a preferred embodiment of this invention, the plug housing is designed with a primary locking mechanism. After the plug and socket are inserted, the primary locking mechanism slides into the mounting plate on the socket housing, achieving primary locking. The secondary locking mechanism is equipped with a locking tongue. After the plug and socket are inserted, the protrusion on the socket housing lifts the locking tongue, allowing the secondary locking mechanism to be pushed forward. When the secondary locking mechanism is pushed to a predetermined position, the locking tongue falls down and presses against the primary locking mechanism. At this point, the primary locking mechanism cannot be lifted when pressed, achieving secondary locking.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Fully enclosed by a metal shielding cover, it has excellent electromagnetic shielding effectiveness and mechanical strength;

[0016] 2. The plug and socket are fixed by a single locking mechanism and a circular push-pull secondary locking mechanism, which ensures the reliability of the plug-in connection.

[0017] 3. The head and base plug, cable seal and base to plate end all adopt multi-lip sealing rings, which are more reliable in structure than the conventional single-layer protection of O-ring seals, and have good sealing performance and anti-aging performance.

[0018] 4. The connector uses surface-mount terminals, which reduces costs and increases production efficiency;

[0019] 4. The connector has a small overall size and a more compact structure, making it easier to arrange within the vehicle's space;

[0020] 5. The signal section adopts a modular and platform-based design, reducing the number of parts and facilitating customer assembly;

[0021] 6. The power insert of this connector adopts an interference fit, which is simple in structure and has high production efficiency;

[0022] 7. This connector has high cable compatibility and can be adapted to a wide range of wire diameters.

[0023] 8. The connection between the socket terminals and the inside of the enclosure can be customized, with multiple installation methods to suit different spaces. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the plug of this utility model.

[0025] Figure 2 This is a schematic diagram of the socket of this utility model.

[0026] Figure 3 This is a cross-sectional structural diagram of the plug and socket of this utility model.

[0027] Figure 4 This is a cross-sectional structural diagram of the waterproof seal of this utility model.

[0028] Figure 5 This is a cross-sectional structural diagram of the socket and the cabinet panel of this utility model.

[0029] Figure 6 This is a cross-sectional structural diagram of the shielding and interconnection component of this utility model.

[0030] Figure 7This is a cross-sectional structural diagram of the combination of the pin terminal and the pin insulator of this utility model.

[0031] Figure 8 This is a cross-sectional structural diagram of the socket terminal and the pin insulator of this utility model.

[0032] Figure 9 This is a cross-sectional schematic diagram of the secondary locking structure of this utility model.

[0033] In the diagram: 1-Secondary locking buckle, 2-End cap, 3-Signal jack, 4-Hole insulator, 5-Plug shield, 6-Jack terminal, 7-Plug sealing ring, 8-Plug housing, 9-Shielding outer sleeve, 10-Shielding inner sleeve, 11-Gasket, 12-Sealing body, 13-Tail cap, 14-Pin insulator, 15-Socket shield, 16-Socket housing, 17-Screw sleeve, 18-Socket sealing ring, 19-Power pin, 20-Signal pin A, 21-Signal pin B, 22-Cable, 23-Box panel. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0037] In the description of this utility model, it should be understood that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use, or the orientation or positional relationship that is commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0039] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0041] As attached Figures 1-9 As shown, this embodiment provides a push-pull locking two-core circular high-voltage connector, which includes a plug, a socket, and a cable 22. The plug includes a secondary locking buckle 1, an end cap 2, a signal jack 3, a hole insulator 4, a plug shield 5, a jack terminal 6, a plug sealing ring 7, a plug housing 8, a shielding outer sleeve 9, a shielding inner sleeve 10, a gasket 11, a sealing body 12, and a tail cap 13; a hollow cavity formed by the plug housing 8 and the tail cap 13, and a hole insulator 4 disposed in the hollow cavity of the plug housing 8, and a jack terminal disposed in the hole insulator. Sub-6, signal jack 3 set on hole insulator 4, cable 22 passes through tail cover 13, sealing body 12 and is crimped with shielding outer sleeve 9 and shielding inner sleeve 10 and then extends into plug housing 8 and connects with jack terminal 6. Plug housing 8 is provided with plug sealing ring 7 for abutting and cooperating with end cover 2. Secondary locking buckle 1 is set on the plug housing 8 near end cover 2. Plug shield 5 is set on the periphery of hole insulator 4 and is connected in sequence with shielding outer sleeve 9 and shielding inner sleeve 10. Gasket 11 is set between plug housing 8 and tail cover 13.

[0042] The socket includes a pin insulator 14, a socket shield 15, a socket housing 16, a screw sleeve 17, a socket sealing ring 18, a power pin 19, a signal pin A20, and a signal pin B21. The socket has a hollow cavity formed by the socket housing 16, and the pin insulator 14, the power pin 19, the signal pin A20, and the signal pin B21 are disposed inside the socket housing 16. The socket sealing ring 18 is provided at the end face of the socket housing 16. A screw sleeve 17 is provided between the flange of the socket housing 16 and the locking screw. The front end of the socket shield 15 is connected to the plug shield 5, and the rear end is connected to the box panel 23.

[0043] As a preferred embodiment of this utility model, such as Figure 3 As shown, the plug housing 8 has a plug sealing ring 7 at the front end, and the plug sealing ring 7 has a protruding lip. When the plug and the socket housing 16 are mated, the plug sealing ring 7 is compressed to achieve waterproof sealing of the plug and socket.

[0044] As a preferred embodiment of this utility model, such as Figure 4 As shown, the tail side wall of the plug housing 8 contacts the sealing body 12. The sealing body 12 has protruding lips on both the inner and outer sides. When the cable 22 is inserted into the sealing body 12, the plug housing 8 and the cable 22 simultaneously compress the protruding lips on the inner and outer sides of the sealing body 12, thereby achieving a waterproof seal for the plug and cable parts.

[0045] As a preferred embodiment of this utility model, such as Figure 5 As shown, the socket sealing ring 18 is installed into the sealing ring groove of the socket housing 16. When the socket housing 16 is installed onto the cabinet panel 23 by screws, the socket sealing ring 18 in the sealing ring groove of the socket housing 16 is compressed, thereby achieving a seal between the socket and the cabinet.

[0046] As a preferred embodiment of this utility model, such as Figure 6 As shown, the shielding conduction is achieved as follows: the inner shielding sleeve 10 is inserted into the outer sheath of the cable 22. After the outer sheath of the cable 22 is stripped, the shielding wire is turned outward onto the inner shielding sleeve 10. Then, the outer shielding sleeve 9 is inserted from the front end. The circular end of the outer shielding sleeve 9 presses down on the shielding wire of the cable 22. At this time, a hexagonal crimping tool is used to crimp the inner and outer shielding sleeves simultaneously. After the inner and outer shielding sleeves are deformed, they are pressed tightly onto the cable 22, achieving conduction between the shielding layer of the cable 22 and the inner and outer shielding sleeves. The rear end of the plug shielding cover 5 is provided with an elastic structure. When the cable 22 is crimped with the inner and outer shielding sleeves and inserted into the plug, the cylindrical part of the outer shielding sleeve 9 contacts the elastic structure at the rear end of the plug shielding cover 5, achieving shielding conduction between the shielding sleeve and the plug. The front end of the plug shielding cover 5 is provided with an elastic structure that contacts the socket shielding cover 15, achieving shielding conduction between the head and the socket. The rear end of the socket shielding cover 15 is provided with an elastic structure that elastically contacts the inner hole of the box panel 23, achieving shielding conduction between the socket and the box panel 23. Through the above three parts, shielding conduction from the cable shielding layer to the box panel is achieved.

[0047] As a preferred embodiment of this utility model, such as Figure 7 As shown, the two power pins 19 are designed with barbed structures. By pressing the pin insulator 14 into the pins through an interference fit, the pin terminals are fixed and do not retract.

[0048] As a preferred embodiment of this utility model, such as Figure 8 As shown, the two socket terminals 6 are designed with spring wings. After the socket terminal 6 is crimped with the cable and the inner and outer shielding tubes, the needle insulator 14 is inserted. The needle insulator 14 is designed with a hanging platform. After the insertion is in place, the spring wings pop open and hang on the hanging platform of the needle insulator 14, so as to fix the socket terminal 6 and prevent it from moving backward.

[0049] As a preferred embodiment of this utility model, such as Figure 9 As shown, the plug housing 8 is designed with a primary locking latch. After the plug and socket are inserted, the primary locking latch slides into the mounting plate on the socket housing 16, achieving primary locking. The secondary locking latch 1 is equipped with a locking tongue. After the plug and socket are inserted, the protrusion on the socket housing 16 lifts the locking tongue, and the secondary locking latch 1 can be pushed forward. When the secondary locking latch 1 is pushed to the predetermined position, the locking tongue falls down and presses on the primary locking latch. At this time, the primary locking latch cannot be lifted when pressed, achieving secondary locking.

[0050] Although the present invention has been described herein with reference to illustrative embodiments, the above embodiments are merely preferred embodiments of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A push-pull locking two-core circular high-voltage connector, characterized in that: The device includes a plug, a socket, and a cable (22). The plug includes a secondary latch (1), an end cap (2), a signal jack (3), a hole insulator (4), a plug shield (5), a jack terminal (6), a plug sealing ring (7), a plug housing (8), a shielding outer sleeve (9), a shielding inner sleeve (10), a gasket (11), a sealing body (12), and a tail cap (13). The device consists of a hollow cavity formed by the plug housing (8) and the tail cap (13), and a hole insulator (4) and a jack terminal (6) and a signal jack (3) on the hole insulator (4) located in the hollow cavity of the plug housing (8). The cable (22) passes through the tail cap (13) and the sealing body (12) and is crimped to the shielding outer sleeve (9) and the shielding inner sleeve (10) before extending into the plug housing (8) and connecting with the jack terminal (6). The plug housing (8) is provided with a plug sealing ring (7) for mating with the end cap (2), and the secondary latch (1) is located on the plug housing (8). Near the end cap (2), the plug shield (5) is set around the hole insulator (4) and connected in sequence with the shield outer sleeve (9) and the shield inner sleeve (10). The gasket (11) is set between the plug housing (8) and the tail cap (13). The socket includes a pin insulator (14), a socket shield (15), a socket housing (16), a screw sleeve (17), a socket sealing ring (18), a power pin (19), a signal pin A (20), and a signal pin B (21). The socket has a hollow cavity formed by the socket housing (16), and the pin insulator (14), the power pin (19), the signal pin A (20), and the signal pin B (21) are set inside the socket housing (16). The socket sealing ring (18) is provided at the end face of the socket housing (16). A screw sleeve (17) is provided between the flange of the socket housing (16) and the locking screw. The front end of the socket shield (15) is connected to the plug shield (5), and the rear end is connected to the box panel (23).

2. The push-pull locking two-core circular high-voltage connector according to claim 1, characterized in that: The plug housing (8) has a plug sealing ring (7) at the front end. The plug sealing ring (7) has a raised lip. When the plug and the socket housing (16) are mated, the plug sealing ring (7) is compressed to achieve waterproof sealing of the plug and socket.

3. A push-pull locking two-core circular high-voltage connector according to claim 1, characterized in that: The tail side wall of the plug housing (8) contacts the sealing body (12). The inner and outer sides of the sealing body (12) are provided with protruding lips. When the cable (22) is inserted into the sealing body (12), the plug housing (8) and the cable (22) simultaneously compress the protruding lips on the inner and outer sides of the sealing body (12) to achieve waterproof sealing of the plug cable part.

4. A push-pull locking two-core circular high-voltage connector according to claim 1, characterized in that: The socket sealing ring (18) is inserted into the sealing ring groove of the socket housing (16). When the socket housing (16) is installed onto the box panel (23) by screws, the socket sealing ring (18) in the sealing ring groove of the socket housing (16) is compressed, thereby achieving a seal between the socket and the box.

5. A push-pull locking two-core circular high-voltage connector according to claim 1, characterized in that: The inner shielding sleeve (10) is inserted into the outer sheath of the cable (22). After the outer sheath of the cable (22) is removed, the shielding wire is turned outward onto the inner shielding sleeve (10), and then the outer shielding sleeve (9) is inserted from the front end. The circular end of the outer shielding sleeve (9) presses down on the shielding wire of the cable (22). At this time, the inner and outer shielding sleeves are pressed together simultaneously with a hexagonal crimping tool. After the inner and outer shielding sleeves are deformed, they are pressed tightly onto the cable (22), realizing the conduction between the shielding layer of the cable (22) and the inner and outer shielding sleeves. The rear end of the plug shielding cover (5) is provided with an elastic structure. When the cable (22) After the inner and outer shielding sleeves are crimped, they are inserted into the plug. The cylindrical part of the outer shielding sleeve (9) contacts the elastic structure at the rear end of the plug shielding cover (5), so as to achieve shielding conduction between the shielding sleeve and the plug. The front end of the plug shielding cover (5) is provided with an elastic structure that contacts the socket shielding cover (15), so as to achieve shielding conduction between the head and the socket. The rear end of the socket shielding cover (15) is provided with an elastic structure that makes elastic contact with the inner hole of the box panel (23), so as to achieve shielding conduction between the socket and the box panel (23), thereby achieving shielding conduction from the cable shielding layer to the box panel.

6. A push-pull locking two-core circular high-voltage connector according to claim 1, characterized in that: There are two power pins (19). The power pins (19) are designed with barbs. The pin terminals are fixed by pressing the pin insulator (14) into the pin through an interference fit, so that the pins do not move backward.

7. A push-pull locking two-core circular high-voltage connector according to claim 1, characterized in that: There are two socket terminals (6). The socket terminals (6) are designed with spring wings. After the socket terminals (6) are crimped with the cable and the inner and outer shielding tubes, the needle insulator (14) is inserted. The needle insulator (14) is designed with a hanging platform. After the insertion is in place, the spring wings pop open and hang on the hanging platform of the needle insulator (14) to fix the socket terminals (6) and prevent them from moving backward.

8. A push-pull locking two-core circular high-voltage connector according to claim 1, characterized in that: The plug housing (8) is designed with a primary latch. After the plug and socket are inserted, the primary latch slides into the mounting plate on the socket housing (16) to achieve primary locking. The secondary latch (1) is provided with a locking tongue. After the plug and socket are inserted, the protrusion on the socket housing (16) lifts the locking tongue, and the secondary latch (1) can be pushed forward. When the secondary latch (1) is pushed to the predetermined position, the locking tongue falls down and presses on the primary latch. At this time, the primary latch cannot be lifted when pressed, thus achieving secondary locking.

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