Waterproof high-current electric connector with bolt reinforced structure

Abstract

The invention relates to the technical field of waterproof connectors, and discloses a waterproof high-current electric connector with a bolt reinforcing structure, which comprises a plug and a socket, the plug comprises a plug shell, a contact pin insulator assembly, a contact pin assembly, a first bolt connecting lug and a tightening bolt; the socket comprises a plug shell, a jack insulator assembly, a jack assembly and a second bolt connecting lug; the plugging contact end of the plug housing and the socket housing is provided with a first sealing ring. The plug and the socket are connected and reinforced through the first bolt connecting lug on the plug shell, the second bolt connecting lug on the socket shell and the tightening bolt assembly, meanwhile, the first sealing ring is arranged at the butt joint position of the plug and the socket to form a waterproof sealing structure, and the excellent waterproof function is achieved after the plug and the socket are inserted. The reliability and the high protection performance of the electric connector under the conditions of high vibration, impact and wading are improved, and the waterproof large-current electric connector is ensured not to have the phenomenon of performance failure in a harsh use environment.

Description

Technical Field

[0001] The invention relates to the technical field of waterproof connectors and discloses a waterproof high-current electric connector with a bolt reinforcement structure. Background Art

[0002] Due to the high vibration and impact requirements of the application environment, many products do not meet the requirements, especially the existing high-power connectors use a double-handle locking connection method, which is prone to product problems such as double handle loosening, loosening, and leakage due to heavy loads and vibration and impact environments such as large cable cross-sectional area and heavy cable weight.

[0003] In order to avoid the adverse consequences of looseness, leakage, etc. caused by the double-handle locking connection of high-power electrical connectors due to plugs and sockets, and to improve the reliability of electrical connector design, we need to design a connection and waterproof structure with better structure and performance based on the high-power connector to meet the high-power power supply requirements of the tank, so as to ensure that the electrical connector will not fail in harsh use environments. Summary of the invention

[0004] The purpose of the present invention is to provide a waterproof high-current electrical connector with a bolt-reinforced structure, which can achieve excellent waterproof function after the plug and socket are plugged in, and increase the reliability and high protection of the electrical connector under high vibration, impact, and wading conditions.

[0005] In order to achieve the above technical effects, the technical solution adopted by the present invention is:

[0006] A waterproof high-current electrical connector with a bolt-reinforced structure, comprising a plug and a socket; the plug comprises a plug housing, a pin insulator assembly is fixedly installed in the plug housing, and a pin assembly is arranged in the pin insulator assembly;

[0007] a first bolt lug, the first bolt lug being fixed to the outside of the plug housing, the first bolt lug being provided with a mounting hole, a tightening bolt being inserted into the mounting hole;

[0008] The socket comprises a socket housing that is plugged with the plug housing, a jack insulator assembly is fixedly installed in the socket housing, and a jack assembly into which the pin assembly can be inserted is fixed in the jack insulator assembly;

[0009] A second bolt lug, the second bolt lug is fixed to the outside of the socket housing, and the second bolt lug is arranged opposite to the first bolt lug, and the second bolt lug is provided with a threaded hole matched with a tightening bolt;

[0010] The plug-in contact ends of the plug housing and the socket housing are provided with a first sealing ring.

[0011] Furthermore, a limiting rubber ring is provided at a position of the first bolt lug near the plug-in contact end, and the rod of the tightening bolt passes through the mounting hole and then enters the limiting rubber ring, and the inner diameter of the limiting rubber ring is smaller than the diameter of the tightening bolt.

[0012] Furthermore, a tail protective cover is provided at the tail of the plug housing away from the plug-in contact end, and a through hole is provided in the tail protective cover for the plug cable to pass through; the tail protective cover is inserted into the tail outlet terminal in the plug housing, and a second sealing ring is provided at the contact point between the outer wall of the tail protective cover and the inner wall of the plug housing.

[0013] Furthermore, a wire sealing body cooperating with the plug cable is arranged in the through hole of the tail protective cover, a clamping nut is arranged at the tail wire outlet end of the through hole of the tail protective cover, and a pressure ring for limiting the wire sealing body is arranged between the clamping nut and the wire sealing body.

[0014] Furthermore, the plug housing is provided with a countersunk screw hole at an outer wall position where the tail protective cover contacts the tail, and the tail protective cover is fixed to the tail position of the plug housing by a slotted countersunk screw arranged in the countersunk screw hole.

[0015] Furthermore, a sleeve is arranged in the plug housing, and the tail of the pin is arranged in the sleeve.

[0016] Furthermore, the pin insulator assembly comprises a coaxially arranged front pin insulator and a rear pin insulator, the pin assembly is fixed on the rear pin insulator, and the front pin insulator is provided with a through hole for the pin assembly to pass through.

[0017] Furthermore, the front-pin insulator and the rear-pin insulator are fixedly connected by a slotted cylindrical head screw, and a first spring washer is arranged between the head of the slotted cylindrical head screw and the corresponding contact position of the pin insulator assembly.

[0018] Furthermore, a third sealing ring is provided at the contact point between the jack insulator and the socket housing.

[0019] Furthermore, the jack insulator assembly comprises a coaxially arranged front-hole insulator and a rear-hole insulator, the jack assembly is fixed on the rear-hole insulator, and the front-hole insulator is provided with a through hole for the jack assembly to pass through.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention realizes the connection reinforcement between the plug and the socket by means of the first bolt lug on the plug housing, the second bolt lug on the socket housing and the tightening bolt assembly, and at the same time, a first sealing ring is arranged at the joint between the plug and the socket to form a waterproof sealing structure, so as to realize an excellent waterproof function after the plug and the socket are plugged in, increase the reliability and high protection of the electrical connector under high vibration, impact and wading conditions, and ensure that the waterproof high-current electrical connector will not fail in performance under harsh use environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic diagram of the structure of the plug in the embodiment;

[0022] Figure 2 A three-dimensional structural diagram of a plug in an embodiment;

[0023] Figure 3 It is a schematic diagram of the structure of the socket in the embodiment;

[0024] Figure 4 A three-dimensional structural diagram of a socket in the embodiment;

[0025] Among them, 1. plug housing; 101. first bolt ear; 2. pin insulator assembly; 3. pin assembly; 4. tightening bolt; 5. socket housing; 501. second bolt ear; 6. jack insulator assembly; 7. jack assembly; 8. first sealing ring; 9. limiting rubber ring; 10. tail protection cover; 11. second sealing ring; 12. sealing body; 13. clamping nut; 14. pressure ring; 15. slotted countersunk screw; 16. sleeve; 17. slotted cylindrical head screw; 18. first spring washer; 19. third sealing ring. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the embodiments and drawings. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0027] Example

[0028] See also Figure 1-Figure 4 , a waterproof high-current electrical connector with a bolt-reinforced structure, comprising a plug and a socket; the plug comprises a plug housing 1, a pin insulator assembly 2 is fixedly installed in the plug housing 1, and a pin assembly 3 is arranged in the pin insulator assembly 2;

[0029] A first bolt lug 101, wherein the first bolt lug 101 is fixed to the outside of the plug housing 1, and a mounting hole is provided on the first bolt lug 101, and a tightening bolt 4 is inserted into the mounting hole;

[0030] The socket comprises a socket housing 5 which is plugged with the plug housing 1, a jack insulator assembly 6 is fixedly installed in the socket housing 5, and a jack assembly 7 which can be inserted into the pin assembly 3 is fixed in the jack insulator assembly 6;

[0031] A second bolt lug 501, which is fixed to the outside of the socket housing 5, and is arranged opposite to the first bolt lug 101, and is provided with a threaded hole matched with the tightening bolt 4;

[0032] A first sealing ring 8 is provided at the plug-in contact end of the plug housing 1 and the socket housing 5 .

[0033] In this embodiment, the connection between the plug and the socket is reinforced by the first bolt lug 101 on the plug housing 1, the second bolt lug 501 on the socket housing 5 and the tightening bolt 4 assembly, and a first sealing ring 8 is provided at the joint between the plug and the socket to form a waterproof sealing structure, so as to achieve an excellent waterproof function after the plug and the socket are plugged in. Compared with the conventional rectangular high-power electrical connector locked by the handle, the reliability and high protection of the electrical connector under high vibration, impact and wading conditions are increased, ensuring that the waterproof high-current electrical connector will not fail in performance under harsh use environments.

[0034] In this embodiment, the first bolt lug 101 is provided with a limiting rubber ring 9 at a position close to the plug contact end, and the rod of the tightening bolt 4 passes through the mounting hole and then enters the limiting rubber ring 9, and the inner diameter of the limiting rubber ring 9 is smaller than the diameter of the tightening bolt 4. If the tightening bolt 4 of the plug housing 1 is designed to be a hexagon socket head screw, combined with a light spring washer and a limiting rubber ring 9 combined structure, the limiting rubber ring 9 and the hexagon socket head screw cooperate with each other to prevent the hexagon socket head screw from falling off.

[0035] In this embodiment, a tail protection cover 10 is provided at the tail of the plug housing 1 away from the plug contact end, and a through hole is provided in the tail protection cover 10 for the plug cable to pass through; the tail protection cover 10 is inserted into the tail outlet end of the plug housing 1, and a second sealing ring 11 is provided at the contact point between the outer wall of the tail protection cover 10 and the inner wall of the plug housing 1, so as to realize a waterproof seal between the tail protection cover 10 and the plug housing 1.

[0036] In this embodiment, a wire sealing body 12 that cooperates with the plug cable is arranged in the perforation of the tail protective cover 10, and a clamping nut 13 is arranged at the perforated tail wire outlet of the tail protective cover 10. A pressure ring 14 for limiting the wire sealing body 12 is arranged between the clamping nut and the wire sealing body 12, thereby achieving fixation and sealing of the tail wire outlet to the plug cable.

[0037] In this embodiment, the plug housing 1 is provided with a countersunk screw hole at the outer wall position where the tail protection cover 10 contacts the tail, and the tail protection cover 10 is fixed to the tail position of the plug housing 1 by a slotted countersunk screw 15 arranged in the countersunk screw hole, thereby ensuring that the tail protection cover 10 is tightly combined with the plug housing 1 and enhancing the stability of the overall structure. In addition, the design of the countersunk screw keeps the outer surface of the tail protection cover 10 flat, avoiding accidental injuries or cable damage that may be caused by sharp edges.

[0038] In this embodiment, a sleeve 16 is disposed in the plug housing 1 , and the tail of the plug pin is disposed in the sleeve 16 , which plays a role in protecting the plug pin assembly 3 .

[0039] In this embodiment, the pin insulator assembly 2 includes a coaxially arranged front-pin insulator and a rear-pin insulator, the pin assembly 3 is fixed on the rear-pin insulator, and the front-pin insulator is provided with a through hole for the pin assembly 3 to pass through. The pin insulator assembly 2 adopts a split structure to achieve rapid assembly of the pin assembly 3. In addition, the front-pin insulator and the rear-pin insulator are fixedly connected by a slotted cylindrical head screw 17, and a first spring washer 18 is provided between the head of the slotted cylindrical head screw 17 and the corresponding contact position of the pin insulator assembly 2. The front-pin insulator and the rear-pin insulator are connected by screws and the first spring washer 18, which ensures the close fit of the insulator assembly and the stability and reliability of current transmission.

[0040] In this embodiment, a third sealing ring 19 is provided at the contact point between the jack insulator and the socket housing 5. The provision of the third sealing ring 19 can effectively prevent moisture and impurities from invading the socket housing 5, and cooperates with the first sealing ring 8 to enable the plug and the socket to dock and form a double sealing ring seal, thereby forming an enclosed space, thereby further improving the waterproof performance of the electrical connector and significantly improving its stability and durability in harsh environments.

[0041] In this embodiment, the jack insulator assembly 6 includes a coaxially arranged front-hole insulator and a rear-hole insulator, and the jack assembly 7 is fixed on the rear-hole insulator. The front-hole insulator is provided with a through hole for the jack assembly 7 to pass through. The jack insulator assembly 6 adopts a split structure to achieve rapid assembly of the jack assembly 7.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof high-current electrical connector with a bolt-reinforced structure, comprising a plug and a socket; characterized in that: The plug comprises a plug housing (1), a plug pin insulator assembly (2) is fixedly mounted in the plug housing (1), and a plug pin assembly (3) is arranged in the plug pin insulator assembly (2); A first bolt connection ear (101), the first bolt connection ear (101) being fixed to the outside of the plug housing (1), the first bolt connection ear (101) being provided with a mounting hole, a tightening bolt (4) being inserted into the mounting hole; The socket comprises a socket housing (5) which is plugged into and matched with the plug housing (1); a jack insulator assembly (6) is fixedly installed in the socket housing (5); a jack assembly (7) into which the pin assembly (3) is inserted is fixedly installed in the jack insulator assembly (6); A second bolt connection ear (501), the second bolt connection ear (501) being fixed to the outside of the socket housing (5), and the second bolt connection ear (501) being arranged opposite to the first bolt connection ear (101), and the second bolt connection ear (501) being provided with a threaded hole matched with a tightening bolt (4); The plug-in contact ends of the plug housing (1) and the socket housing (5) are provided with a first sealing ring (8).

2. The waterproof high-current electrical connector with bolt reinforcement structure according to claim 1, characterized in that: The first bolt connection ear (101) is provided with a limiting rubber ring (9) at a position close to the plug-in contact end; the rod of the tightening bolt (4) passes through the mounting hole and then enters the limiting rubber ring (9); the inner diameter of the limiting rubber ring (9) is smaller than the diameter of the tightening bolt (4).

3. The waterproof high current electrical connector with bolt reinforcement structure according to claim 1, characterized in that: The plug housing (1) is provided with a tail protection cover (10) at the tail away from the plug contact end, and a through hole is provided in the tail protection cover (10) for the plug cable to pass through; the tail protection cover (10) is inserted into the tail outlet end of the plug housing (1), and a second sealing ring (11) is provided at the contact point between the outer wall of the tail protection cover (10) and the inner wall of the plug housing (1).

4. The waterproof high-current electrical connector with bolt reinforcement structure according to claim 3, characterized in that: A sealing body (12) that cooperates with the plug cable is arranged in the through hole of the tail protection cover (10), a clamping nut (13) is arranged at the tail outlet end of the through hole of the tail protection cover (10), and a pressure ring (14) for limiting the position of the sealing body (12) is arranged between the clamping nut and the sealing body (12).

5. The waterproof high current electrical connector with bolt reinforcement structure according to claim 3, characterized in that: The plug housing (1) is provided with a countersunk screw hole at an outer wall position where the tail protection cover (10) contacts the tail, and the tail protection cover (10) is fixed to the tail position of the plug housing (1) by means of a slotted countersunk screw (15) arranged in the countersunk screw hole.

6. The waterproof high-current electrical connector with bolt reinforcement structure according to claim 1, characterized in that: A sleeve (16) is arranged inside the plug housing (1), and the tail of the plug pin is arranged inside the sleeve (16).

7. The waterproof high-current electrical connector with bolt reinforcement structure according to claim 1, characterized in that: The pin insulator assembly (2) comprises a coaxially arranged front pin insulator and a rear pin insulator, the pin assembly (3) is fixed on the rear pin insulator, and the front pin insulator is provided with a through hole through which the pin assembly (3) can pass.

8. The waterproof high-current electrical connector with bolt reinforcement structure according to claim 7, characterized in that: The front-pin insulator and the rear-pin insulator are fixedly connected by a slotted cylindrical head screw (17), and a first spring washer (18) is provided between the head of the slotted cylindrical head screw (17) and the corresponding contact position of the pin insulator assembly (2).

9. The waterproof high-current electrical connector with bolt reinforcement structure according to claim 1, characterized in that: A third sealing ring (19) is provided at the contact point between the jack insulator and the socket housing (5).

10. The waterproof high current electrical connector with bolt reinforcement structure according to claim 1, characterized in that: The jack insulator assembly (6) comprises a coaxially arranged front-hole insulator and a rear-hole insulator, the jack assembly (7) is fixed on the rear-hole insulator, and the front-hole insulator is provided with a through hole through which the jack assembly (7) can pass.

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