High-voltage high-current-carrying environment-resistant electric connector

Abstract

The invention relates to the technical field of aviation electric connectors, and discloses a high-voltage high-current-carrying environment-resistant electric connector. Butt joint sealing between the plug shell and the square plate shell is achieved through the sealing ring, sealing of the tail end of the plug and the tail end of the socket to a wire is achieved through the first wire sealing body and the second wire sealing body which are made of high-temperature-resistant silicon rubber, and therefore the high-voltage high-current-carrying environment-resistant electric connector has the dustproof and rainproof functions. According to the electric connector, the integral first insulator assembly and the integral second insulator assembly are adopted, the first insulator assembly is bonded with the first wire sealing body, and the second insulator assembly is bonded with the second wire sealing body, so that the fit clearance between split insulators is eliminated, and the voltage resistance of the electric connector is improved; according to the electric connector, the power jacks with the split groove closing-up structures are adopted, and the spring pieces are wrapped outside the power jacks, so that the stability of jack force is improved, and the current-carrying capacity of the electric connector is improved.

Description

Technical Field

[0001] This invention relates to the field of aviation electrical connector technology, and discloses a high-voltage, high-current-carrying, environmentally resistant electrical connector. Background Technology

[0002] As modern aircraft develop towards more electric and all-electric directions, the number of electrical and electronic devices is rapidly increasing, and the total power consumption of the equipment is significantly increasing. Correspondingly, the power supply capacity of the aircraft power supply system is increasing, and the corresponding power supply voltage and current levels are constantly improving. Coupled with the influence of comprehensive environmental factors such as high temperature, low air pressure, and vibration on the aircraft, the existing high-current electrical connectors can no longer meet the above requirements, posing new challenges to the voltage withstand capability, current carrying capacity, and environmental resistance performance of electrical connectors. Summary of the Invention

[0003] The purpose of this invention is to provide a high-voltage, high-current-carrying, environmentally resistant electrical connector, which features high voltage, high current-carrying capacity, good environmental resistance, and high safety.

[0004] To achieve the above-mentioned technical effects, the technical solution adopted by the present invention is as follows: A high-voltage, high-current, environmentally resistant electrical connector, comprising: A plug, comprising a plug housing, a signal jack assembly, a power jack assembly, and a first insulator assembly; the first insulator assembly is fixed inside the plug housing, and has a first mounting hole and a second mounting hole; the signal jack assembly is disposed inside the first mounting hole, and the power jack assembly is disposed inside the second mounting hole; and a first sealing wire is adhered to the tail end of the first insulator assembly; the power jack assembly includes a power jack and a spring plate, the front end of the power jack has a slotted and tapered structure, and the spring plate is wrapped around the outer wall of the front end of the power jack; A socket includes a square housing, a power pin, a signal pin, and a second insulator assembly. The inner wall of the square housing's mating end is provided with a sealing ring to seal the gap between the mating end face of the plug housing and the inner wall of the square housing. The second insulator assembly is disposed within the square housing and has a third mounting hole and a fourth mounting hole. The power pin is disposed within the third mounting hole, and the signal pin is disposed within the fourth mounting hole. The power pin is used to connect to the power socket assembly, and the signal pin is used to connect to the signal socket assembly. A second sealing wire is adhered to the tail of the second insulator assembly.

[0005] Furthermore, the first insulator assembly includes a pre-hole insulator and a post-hole insulator, the pre-hole insulator being fixed to the mating end of the plug housing, and the post-hole insulator being bonded to the tail of the pre-hole insulator.

[0006] Furthermore, the insulator before the hole, the insulator after the hole, and the first sealing body are all fixed inside the plug housing by fixing claws.

[0007] Furthermore, the second insulator assembly includes an interface seal, a pre-needle insulator, and a post-needle insulator, and the interface seal, pre-needle insulator, and post-needle insulator are arranged sequentially along the direction from the mating end to the tail end of the square disc housing and bonded together as a whole.

[0008] Furthermore, the interface sealing body, the front insulator, the rear insulator, and the second sealing body are all fixed inside the plug housing by fixing claws.

[0009] Furthermore, the plug housing is provided with a connecting nut for threaded connection with the square disc housing.

[0010] Furthermore, the insulator before the hole is provided with a rigid truncated cone structure, and the interface sealing body is provided with a soft conical hole structure that interlocks with the rigid truncated cone structure.

[0011] Furthermore, the length of the signal pin is shorter than that of the power pin.

[0012] Furthermore, the outer wall of the plug housing is provided with a shielding ring, and the shielding ring is located between the plug housing and the connecting nut.

[0013] Compared with the prior art, the beneficial effects of this invention are: The high-voltage, high-current-carrying, environmentally resistant electrical connector of this invention achieves a sealing connection between the plug housing and the square housing through a sealing ring after the plug and socket are mated. A first and second sealing wire body, made of high-temperature resistant silicone rubber, respectively seals the wires at the plug and socket ends, providing dust and rain protection. This invention employs an integral first and second insulator assembly, bonding the first insulator assembly to the first sealing wire body and the second insulator assembly to the second sealing wire body, eliminating the gap between separate insulators and improving the voltage withstand capability of the connector. The invention also uses a slotted, tapered power socket with an external spring sheet, improving the stability of the socket force and enhancing the current-carrying capacity of the connector. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of the crimp-type aviation electrical connector in the embodiment; Figure 2 This is a schematic diagram of the plug structure in the embodiment; Figure 3 This is a schematic diagram of the socket structure in the embodiment; Figure 4This is a schematic diagram of the power jack assembly in the embodiment; Figure 5 This is a schematic diagram of the structure of the insulator before the hole in the embodiment; Figure 6 This is a schematic diagram of the structure of the insulator before the hole in the embodiment; Among them, 1-plug, 101-signal jack assembly, 102-power jack assembly, 103-shielding ring, 104-connecting nut, 105-insulator before hole, 106-insulator after hole, 107-ring snap ring, 109-plug housing, 110-first sealing body, 2-socket, 201-second sealing body, 203-insulator after pin, 204-square housing, 205-power pin, 206-signal pin, 207-insulator before pin, 208-sealing ring, 209-interface sealing body, 1021-power jack, 1022-spring sheet. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the embodiments and accompanying drawings. However, this should not be construed as limiting the scope of the above-described subject matter of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0016] See Figures 1 to 6 This invention provides a high-voltage, high-current, environmentally resistant electrical connector, comprising: The plug 1 includes a plug housing 109, a signal jack assembly 101, a power jack assembly 102, and a first insulator assembly. The first insulator assembly is fixed inside the plug housing 109 and has a first mounting hole and a second mounting hole. The signal jack assembly 101 is disposed in the first mounting hole, and the power jack assembly 102 is disposed in the second mounting hole. A first sealing wire 110 is attached to the tail of the first insulator assembly. The power jack assembly 102 includes a power jack 1021 and a spring sheet 1022. The front end of the power jack 1021 has a slotted and tapered structure, and the spring sheet 1022 is wrapped around the outer wall of the front end of the power jack 1021. The socket 2 includes a square housing 204, a power pin 205, a signal pin 206, and a second insulator assembly. A sealing ring 208 is provided on the inner wall of the mating end of the square housing 204 to seal the gap between the mating end face of the plug housing 109 and the inner wall of the square housing 204. The second insulator assembly is disposed within the square housing 204 and has a third mounting hole and a fourth mounting hole. The power pin 205 is disposed within the third mounting hole, and the signal pin 206 is disposed within the fourth mounting hole. The power pin 205 is used to connect with the power socket assembly 102, and the signal pin 206 is used to connect with the signal socket assembly 101. A second sealing wire 201 is adhered to the tail of the second insulator assembly.

[0017] The high-voltage, high-current-carrying, environmentally resistant electrical connector of the present invention, after the plug 1 and socket 2 are mated, achieves a sealing between the plug housing 109 and the square housing 204 through the sealing ring 208. The first sealing wire body 110 and the second sealing wire body 201, made of high-temperature resistant silicone rubber, respectively seal the wires at the tail end of the plug 1 and the tail end of the socket 2, giving the high-voltage, high-current-carrying, environmentally resistant electrical connector dustproof and rainproof functions. The present invention uses an integral first insulator assembly and an integral second insulator assembly, and bonds the first insulator assembly to the first sealing wire body 110 and the second insulator assembly to the second sealing wire body 201 to eliminate the mating gap between the separate insulators and improve the voltage withstand capability of the electrical connector of the present invention. The present invention uses a slotted and tapered power socket 1021 and wraps a spring sheet 1022 around the power socket 1021, which improves the stability of the socket force and improves the current carrying capacity of the electrical connector.

[0018] Example This embodiment further illustrates the detailed structure of the high-voltage, high-current-carrying, environmentally resistant electrical connector of the present invention, as follows: See Figures 1 to 6A high-voltage, high-current-carrying, environmentally resistant electrical connector includes a plug 1 and a socket 2 that are mated together. The plug 1 includes a signal jack assembly 101, a power jack assembly 102, a shielding ring 103, a connecting nut 104, a front insulator 105, a rear insulator 106, a coiled snap ring 107, a retaining claw 108, a plug housing 109, and a sealing body. The front insulator 105 and the rear insulator 106 are installed inside the plug housing 109. The front insulator 105 is fixed to the mating end of the plug housing 109, and the rear insulator 106 is bonded to the tail of the front insulator 105. The front insulator 105 and the rear insulator 106 are bonded together to form a first insulator assembly. The first insulator assembly has a first mounting hole and a second mounting hole. The signal jack assembly 101 is installed in the first mounting hole, and the power jack assembly 102 is installed in the second mounting hole. A first sealing wire 110 is attached to the end of the insulator 106 after the hole to seal the wire. The insulator 105 before the hole, the insulator 106 after the hole, and the first sealing wire 110 are all fixed in the housing by the fixing claws 108.

[0019] The plug housing 109 and the connecting nut 104 are connected and fixed by a snap ring 107. The plug housing 109 and the connecting nut 104 assembly are designed with an anti-loosening structure, which has anti-loosening characteristics.

[0020] It should be noted that the power socket assembly 102 includes a power socket 1021 and a spring sheet 1022. The power socket 1021 is made of high-conductivity copper alloy, and the spring sheet 1022 is made of spring stainless steel. The power socket 1021 is designed with a slotted and tapered structure, and is wrapped with the spring sheet 1022 to ensure the stability of the socket force and prevent stress relaxation of the power socket 1021 under high temperature conditions, so as to improve the current carrying capacity of the electrical connector.

[0021] It should be noted that the plug 1 is also equipped with a shielding ring 103. The shielding ring 103 is installed in the groove on the outside of the plug housing 109, located between the plug housing 109 and the connecting nut 104. After docking with the socket 2, it can realize the electrical continuity of the electrical connector shell, so that the electrical connector as a whole has electromagnetic shielding characteristics.

[0022] In plug 1, the insulator before the hole 105, the insulator after the hole 106, and the first sealing body 110 are bonded together with adhesive to eliminate the gap between the three and improve the voltage withstand capability of plug 1.

[0023] The socket 2 includes a second sealing body 201, a fixing claw 108, a pin rear insulator 203, a square housing 204, a power pin 205, a signal pin 206, a pin front insulator 207, a sealing ring 208, and an interface sealing body 209. The interface sealing body 209, the pin front insulator 207, and the pin rear insulator 203 are installed inside the square housing 204, and are arranged sequentially from the mating end to the tail end of the square housing 204 and bonded together to form a second insulator assembly. The second insulator assembly has a third mounting hole and a fourth mounting hole. The power pin 205 is installed in the third mounting hole, and the signal pin 206 is installed in the fourth mounting hole. A second sealing wire 201 is adhered to the end of the post-pin insulator 203 for sealing the wire. The interface sealing body 209, the pre-pin insulator 207, the post-pin insulator 203, and the second sealing wire 201 are all fixed in the square housing 204 by fixing claws 108. A sealing ring 208 is installed in the groove at the front end of the square housing 204 to seal the gap between the mating end face of the plug housing 109 and the inner wall of the square housing 204.

[0024] In socket 2, the interface sealing body 209, the front insulator 207, the rear insulator 203, and the second sealing body 201 are bonded together with adhesive to eliminate the gaps between the four components and improve the voltage withstand capability of socket 2.

[0025] It should be noted that in the plug 1, the insulator 105 in front of the hole is provided with a rigid truncated cone structure, and the interface sealing body 209 in the socket 2 is provided with a soft conical hole structure that interlocks with the rigid truncated cone structure. By interlocking the rigid truncated cone structure and the soft conical hole structure, the creepage distance between the mating surfaces of the plug 1 and the socket 2 is increased, and the air gap is effectively eliminated.

[0026] It should be noted that in socket 2, the signal pin 206 is shorter than the power pin 205. When socket 2 is plugged into plug 1, power pin 205 plugs into power socket assembly 102 first, followed by signal pin 206 plugging into signal socket assembly 101. When socket 2 is detached from plug 1, signal pin 206 detaches from signal socket assembly 101 first, followed by power pin 205 detaching from power socket assembly 102. This achieves the function of controlling high-voltage power supply with low-voltage signal, i.e., electrical interlocking, increasing the safety and reliability of the electrical connector of this invention.

[0027] The above are merely 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 within the protection scope of the present invention.

Claims

1. An environmental high voltage high current electrical connector characterized by, The application relates to a plug (1) and a socket (2), and belongs to the field of electrical connectors. The plug (1) comprises a plug shell (109), a signal jack assembly (101), a power jack assembly (102) and a first insulator assembly; the first insulator assembly is fixed in the plug shell (109), the first insulator assembly is provided with a first mounting hole and a second mounting hole, the signal jack assembly (101) is arranged in the first mounting hole, the power jack assembly (102) is arranged in the second mounting hole, and the tail of the first insulator assembly is bonded with a first sealing wire body (110); the power jack assembly (102) comprises a power jack (1021) and a spring sheet (1022), the front end of the power jack (1021) is provided with a split slot closed end structure, and the spring sheet (1022) is wrapped around the outer wall of the front end of the power jack (1021); The socket (2) comprises a square disc shell (204), a power pin (205), a signal pin (206) and a second insulator assembly; the inner wall of the butt joint end of the square disc shell (204) is provided with a sealing ring (208) for sealing the gap between the butt joint end surface of the plug shell (109) and the inner wall of the square disc shell (204); the second insulator assembly is arranged in the square disc shell (204), the second insulator assembly is provided with a third mounting hole and a fourth mounting hole; the power pin (205) is arranged in the third mounting hole, the signal pin (206) is arranged in the fourth mounting hole, the power pin (205) is used for being connected with the power jack assembly (102), and the signal pin (206) is used for being connected with the signal jack assembly (101); the tail of the second insulator assembly is bonded with a second sealing wire body (201).

2. The high voltage, high current, environmental resistant electrical connector of claim 1, wherein, The first insulator assembly comprises a hole front insulator (105) and a hole rear insulator (106), the hole front insulator (105) is fixed at the butt joint end of the plug shell (109), and the hole rear insulator (106) is bonded at the tail of the hole front insulator (105).

3. The high voltage, high current, environmental resistant electrical connector of claim 2, wherein, The hole front insulator (105), the hole rear insulator (106) and the first sealing wire body (110) are fixed in the plug shell (109) through fixing clamps (108).

4. The high voltage, high current, environmental resistant electrical connector of claim 3, wherein, The second insulator assembly comprises an interface sealing body (209), a pin front insulator (207) and a pin rear insulator (203), and the interface sealing body (209), the pin front insulator (207) and the pin rear insulator (203) are sequentially arranged and bonded into an integrated body along the direction from the butt joint end to the tail end of the square disc shell (204).

5. The high voltage, high current, environmental resistant electrical connector of claim 4, wherein, The interface sealing body (209), the pin front insulator (207), the pin rear insulator (203) and the second sealing wire body (201) are fixed in the plug shell (109) through fixing clamps (108).

6. The high voltage, high current, environmental resistant electrical connector of claim 5, wherein, The plug shell (109) is provided with a connecting screw cap (104) for being threadedly connected with the square disc shell (204).

7. The high voltage, high current, environmental resistant electrical connector of claim 6, wherein, The hole front insulator (105) is provided with a hard conical frustum structure, and the interface sealing body (209) is provided with a soft conical hole structure matched with the hard conical frustum structure.

8. The high voltage, high current, environmental resistant electrical connector of claim 7, wherein, The length of the signal pin (206) is less than that of the power pin (205).

9. The high voltage, high current, environmental resistant electrical connector of claim 8, wherein, The outer wall of the plug shell (109) is provided with a shielding ring (103), and the shielding ring (103) is located between the plug shell (109) and the connecting screw cap (104).

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