Environment-resistant explosion-proof circular electric connector
By designing pin and socket assemblies in the electrical connector, combined with silicone pads and injection plates, the problems of explosion-proof and insulation performance caused by electric arcs are solved, achieving stable sealing and insulation effects, and improving the safety and lifespan of the electrical connector.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-10
AI Technical Summary
Existing electrical connectors are prone to arcing in harsh environments, affecting their explosion-proof and insulation performance and posing safety hazards.
The design employs a pin assembly and a socket assembly, including a pin sintering plate, an insulating plate, a pin insulating pad, and an arc-extinguishing boss, combined with a silicone pad and a glue injection plate to form a stable sealing structure, eliminating electric arcs and improving insulation performance.
It achieves stable sealing and explosion-proof performance in harsh environments, ensuring safe use and stable insulation performance.
Smart Images
Figure CN223986770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an electrical connector, specifically an environmentally resistant and explosion-proof circular electrical connector. Background Technology
[0002] With the widespread application of electrical connector technology, it is being used in more and more special environments. In particular, for harsh environments and occasions with potential explosion hazards, it is necessary to use electrical connectors that are safe and have a long service life. The head and base of the existing protective electrical connectors adopt an end-to-end mating and pin-hole plugging structure. The resulting pinhole gap and end-to-end gap are prone to generating electric arcs, which affects the explosion-proof performance. At the same time, the electric arcs will also affect the insulation performance of the mating and plugging points, thus affecting the overall safety and service life. Summary of the Invention
[0003] This utility model provides an environmentally friendly explosion-proof circular electrical connector with a simple structure and comprehensive sealing, environmental resistance, stable insulation and explosion-proof properties.
[0004] The technical solution adopted by this utility model is: an environmentally resistant explosion-proof circular electrical connector, including a plug and a socket. The plug's head housing contains a pin assembly, and the socket's base housing contains a corresponding socket assembly. The pin assembly comprises a pin sintering plate, front and rear insulating plates, pins, and a pin insulating pad. Multiple pins pass through the pin sintering plate, which is sintered with glass within the head housing. The front and rear insulating plates are respectively positioned at the front and rear of the pin sintering plate. A pin insulating pad is glued forward-facing onto the front insulating plate. Multiple pins pass through a pin insulating pad. An arc-extinguishing boss, which extends above the front end of the pin insulating pad and wraps around the pin with the pin as its axis, is integrally provided on the pin insulating pad at the pin protrusion position. The socket assembly includes a socket sintering plate, front and rear insulating plates, and sockets. Multiple sockets pass through the socket sintering plate, which is sintered with glass in the housing. The front and rear insulating plates are respectively located at the front and rear of the socket sintering plate. An arc-extinguishing groove, which is lower than the front end of the front insulating plate and corresponds to the arc-extinguishing boss, is integrally provided on the socket insulating plate at the pin protrusion position.
[0005] A silicone pad is provided between the pin sintering plate and the front insulating plate or the rear insulating plate of the pin.
[0006] The pins and holes are provided with one or more sintering bosses or sintering grooves on the outer circumference of the glass sintering position.
[0007] An environmentally resistant explosion-proof circular electrical connector includes a plug and a socket. The plug's head housing contains a pin assembly, and the socket's base housing contains a corresponding socket assembly. The pin assembly comprises a pin injection plate, front and rear insulating plates, pins, and pin insulating pads. Multiple pins pass through the pin injection plate, which is molded into the head housing. The front and rear insulating plates are respectively positioned before and after the pin injection plate. A pin insulating pad is glued forward-facing onto the front insulating plate. Multiple pins pass through the socket... The needle insulating pad has an arc-extinguishing boss integrally formed on the needle insertion position, which is higher than the front end face of the needle insulating pad and wraps around the needle with the needle as the axis; the socket assembly includes a socket injection plate, front and rear insulating plates and sockets, and multiple sockets are connected to the socket injection plate which is injection molded in the housing. The front and rear insulating plates are respectively set in front of and behind the socket injection plate. The socket insulating plate has an arc-extinguishing groove integrally formed on the insertion position of the socket at the insertion position, which is lower than the front end face of the front insulating plate and corresponds to the arc-extinguishing boss.
[0008] A silicone pad is provided between the pin injection plate and the front insulating plate or the rear insulating plate of the pin.
[0009] The silicone pad is fitted into a groove around the center of the pin.
[0010] The outer end face and outer periphery of the arc-extinguishing boss are respectively inserted into the arc-extinguishing groove.
[0011] The cross-sections of the arc-extinguishing bosses corresponding to the multiple pins may be the same or different.
[0012] The pin and the insertion hole are provided with one or more glue injection bosses or glue injection grooves on the outer circumference of the glue injection molding position.
[0013] The beneficial effects of this utility model are:
[0014] 1. A silicone pad and a glue injection plate or sintered plate are set between the front and rear insulating plates of the plug and socket. The integral molding structure is stable and has good sealing performance, which meets the environmental sealing requirements and is also conducive to explosion-proof performance.
[0015] 2. At the joint of the plug and socket, an insulating pad is used to connect the plug and socket to the front insulating plate of the socket. An arc-extinguishing protrusion is set on the insulating pad corresponding to the plug. The arc-extinguishing protrusion corresponds to the sealing groove of the front insulating plate of the socket. While ensuring the stability of the plug connection, the joint surfaces are staggered at the plug and socket insertion positions to eliminate the electric arc. This ensures stable insulation performance and comprehensively improves explosion-proof performance and safety of use. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the plug of this utility model;
[0017] Figure 2This is a schematic diagram of the internal three-dimensional structure of the socket of this utility model.
[0018] In the diagram: 1. Head housing; 2. Pin; 3. Pin glue injection plate; 4. Pin silicone pad; 5. Pin front insulating plate; 6. Pin rear insulating plate; 7. Pin insulating pad; 8. Arc extinguishing boss; 9. Pin glue injection groove; 10. Seat housing; 11. Socket; 12. Socket glue injection plate; 13. Socket front insulating plate; 14. Socket rear insulating plate; 15. Arc extinguishing groove; 16. Socket silicone pad; 17. Socket glue injection groove. Detailed Implementation
[0019] The following description, in conjunction with the accompanying drawings and embodiments, provides further details.
[0020] Figure 1 , 2 As shown: An environmentally resistant explosion-proof circular electrical connector includes a plug and a socket, with the plug's head housing 1 and the socket's base housing 10 interlocking. Multiple pins 2 pass through a pin injection plate 3 molded with adhesive within the head housing 1. Pin injection grooves 9 are provided on the pins 2 corresponding to their injection molding positions. The pin injection plate 3, facing forward, abuts against a front insulating plate 5 via a pin silicone pad 4, and faces backward, abutting against a rear insulating plate 6. A pin insulating pad 7 is glued forward onto the front insulating plate 5, and multiple pins 2 pass through the pin insulating pad 7. An integral feature on the pin insulating pad 7, at the pin protrusion position, extends above the front end of the insulating pad and is centered on the pin. An arc-extinguishing boss 8 encloses the insertion pin; multiple insertion holes 11 pass through an insertion hole injection plate 12 molded in the housing 10; insertion hole 11 is provided with an insertion hole injection groove 17 corresponding to the injection molding position; the insertion hole injection plate 12 faces forward and abuts against the front insulation plate 13 of the insertion hole via the insertion hole silicone pad 16; the insertion hole injection plate 12 faces backward and abuts against the rear insulation plate 14 of the insertion hole; an arc-extinguishing groove 15 is integrally provided on the insertion hole through the insertion position, which is lower than the front end face of the front insulation plate of the insertion hole and corresponds to the insertion of the arc-extinguishing boss 8.
[0021] In the above embodiments, the injection molding plate structure in the socket and socket can be replaced with a glass sintered plate structure.
Claims
1. An environmental resistant explosion-proof circular electrical connector comprising a plug and a socket, a pin assembly is arranged in a head housing of the plug, and a socket assembly corresponding to the pin assembly is arranged in a seat housing of the socket, characterized in that: The pin assembly comprises a pin sintering plate, front and rear insulating plates, pins and pin insulating pads, a plurality of pins are connected to the pin sintering plate sintered in the head shell, the front and rear insulating plates are arranged in front of and behind the pin sintering plate respectively, the pin insulating pads are glued to the front of the front insulating plate, a plurality of pins are connected to the pin insulating pads, and an arc extinguishing boss is integrally arranged on the pin insulating pad at the pin passing position, which is higher than the front end surface of the pin insulating pad and wraps the pin around the pin axis; the jack assembly comprises a jack sintering plate, front and rear insulating plates and jacks, a plurality of jacks are connected to the jack sintering plate sintered in the seat shell, the front and rear insulating plates are arranged in front of and behind the jack sintering plate respectively, and an arc extinguishing groove is integrally arranged on the jack insulating plate at the jack passing position, which is lower than the front end surface of the front insulating plate and corresponds to the arc extinguishing boss.
2. An environmentally resistant explosion-proof circular electrical connector as defined in claim 1, wherein: A silica gel pad is arranged between the pin sintering plate and the front or rear insulating plate.
3. An environmentally resistant explosion-proof circular electrical connector as defined in claim 1 wherein: One or more sintering bosses or sintering grooves are arranged on the outer periphery of the pin and jack in the glass sintering position.
4. An environmental resistant explosion-proof circular electrical connector comprising a plug and a socket, a pin assembly is arranged in a head housing of the plug, and a socket assembly corresponding to the pin assembly is arranged in a seat housing of the socket, characterized in that: The pin assembly comprises a pin injection plate, front and rear insulating plates, pins and pin insulating pads, a plurality of pins are connected to the pin injection plate formed by injection molding in the head shell, the front and rear insulating plates are arranged in front of and behind the pin injection plate respectively, the pin insulating pads are glued to the front of the front insulating plate, a plurality of pins are connected to the pin insulating pads, and an arc extinguishing boss is integrally arranged on the pin insulating pad at the pin passing position, which is higher than the front end surface of the pin insulating pad and wraps the pin around the pin axis; the jack assembly comprises a jack injection plate, front and rear insulating plates and jacks, a plurality of jacks are connected to the jack injection plate formed by injection molding in the seat shell, the front and rear insulating plates are arranged in front of and behind the jack injection plate respectively, and an arc extinguishing groove is integrally arranged on the jack insulating plate at the jack passing position, which is lower than the front end surface of the front insulating plate and corresponds to the arc extinguishing boss.
5. An environmentally resistant explosion-proof circular electrical connector according to claim 4, wherein: A silica gel pad is arranged between the pin injection plate and the front or rear insulating plate.
6. An environmentally resistant explosion-proof circular electrical connector according to claim 2 or 5, characterized in that: The silica gel pad is sleeved in a groove in the middle part of the pin.
7. An environmentally resistant explosion-proof circular electrical connector according to claim 1 or 4, characterized in that: The outer end surface and outer periphery of the arc extinguishing boss are respectively inserted and combined with the arc extinguishing groove.
8. An environmentally resistant explosion-proof circular electrical connector according to claim 1 or 4, characterized in that: The cross sections of the arc extinguishing bosses corresponding to the plurality of pins can be the same or different.
9. An environmentally resistant explosion-proof circular electrical connector as defined in Claim 4 wherein: One or more injection molding bosses or injection molding grooves are arranged on the outer periphery of the pin and jack in the injection molding position.