Round self-locking high-voltage mixed connector

Abstract

The utility model relates to the technical field of electrical connectors, in particular to a circular self-locking high-voltage mixed connector, which comprises a connector plug and a connector socket, and is characterized in that the connector plug comprises a first shell and a plug end accommodated in the first shell; the plug end comprises an insulator, a low-voltage terminal group packaged in the insulator, a plurality of accommodating holes arranged in the insulator and located in the peripheral area of the low-voltage terminal group, and high-voltage terminals installed in the accommodating holes. The accommodating holes can fully surround the high-voltage terminal plugging ends. The connector socket comprises a socket shell which is connected with the first shell in an inserting manner and a socket end which is accommodated in the socket shell and is adaptively connected with the plug end; and a push-pull self-locking mechanism which is used for ensuring that the connector plug and the connector socket are tightly matched with each other is also arranged between the connector plug and the connector socket. According to the utility model, the high-voltage terminal is accommodated in the accommodating hole, so that the electrical gap between the high-voltage terminal and the accommodating hole is increased, and the high-voltage resistance is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and in particular to a circular self-locking high-voltage mixed-assembly connector. Background Technology

[0002] With the widespread application and development of electrical equipment, the requirements for connectors are becoming increasingly stringent, especially in high-voltage and multi-signal transmission applications. Traditional connectors often struggle to simultaneously meet the demands of high-voltage and low-voltage signal transmission, particularly in situations with limited space and harsh environmental conditions. Furthermore, plugs and sockets are prone to loosening under external forces, affecting connection reliability. Utility Model Content

[0003] To address the problems mentioned above in the background art, this utility model provides a circular self-locking high-voltage mixed-assembly connector.

[0004] The solution adopted by this utility model to solve its technical problem is: a circular self-locking high-voltage mixed connector, including a connector plug and a connector socket. The connector plug includes a first housing and a plug end housed in the first housing. The plug end includes an insulator, a low-voltage terminal group encapsulated in the insulator, a number of receiving holes arranged in the area surrounding the low-voltage terminal group in the insulator, and a high-voltage terminal installed in the receiving holes. The receiving holes can completely surround the plug end of the high-voltage terminal. The connector socket includes a socket housing that is plugged into the first housing and a socket end housed in the socket housing and adapted to be connected to the plug end. A push-pull self-locking mechanism is also provided between the connector plug and the connector socket to ensure a tight fit between the two.

[0005] By adopting the above technical solution, high-voltage terminals and low-voltage terminals can be integrated into the connector, enabling the simultaneous processing of high-voltage and low-voltage signals in the same interface. Furthermore, by completely enclosing the high-voltage terminals within the receiving hole and increasing the electrical clearance between the low-voltage and high-voltage terminals, air breakdown or arcing caused by excessive voltage is effectively prevented. The push-pull self-locking mechanism ensures a secure physical connection between the plug and socket, maintaining a tight fit even under vibration or other external forces, preventing accidental disconnection.

[0006] Furthermore, the outer wall of the insulator is provided with staggered steps to increase its high-voltage resistance.

[0007] By adopting the above technical solutions, the creepage distance and electrical clearance between high-voltage terminals and low-voltage terminals are increased, thereby further improving the high-voltage resistance performance of the connector.

[0008] Further, the push-pull self-locking mechanism comprises a plurality of clamping grooves arranged in the socket shell, a plurality of elastic buckles arranged on the outer wall of the first shell plug-in end for plugging into the clamping grooves to form locking, and a movable shell sleeved on the first shell, wherein a movable gap is left between the first shell and the insulator, the movable shell can move along the axial direction of the first shell and press the first shell towards the movable gap, so that the elastic buckle is separated from the clamping groove.

[0009] By adopting the above technical scheme, when the connector plug is plugged into the connector socket, the elastic buckle is plugged into the corresponding clamping groove to form locking, and the elastic buckle can be slid out of the clamping groove by pushing and pulling the movable shell to be unlocked.

[0010] Further, the buckles and the clamping grooves are arranged uniformly on the first shell and the socket shell.

[0011] By adopting the above technical scheme, the locking firmness can be effectively improved.

[0012] Further, the tail end of the first shell is further connected with a wire clamp shell and a tail cap wrapped on the wire clamp shell, a plurality of clamping claw portions are arranged on the tail end of the wire clamp shell around an axis, a pressing ring for being sleeved on the outer periphery of each clamping claw portion is arranged in the tail cap, and the tail cap is threadedly connected to the tail end of the first shell and can be driven to press each clamping claw portion by being progressively moved along the axial direction of the first shell, so as to clamp the cable.

[0013] By adopting the above technical scheme, the cable can be effectively clamped by the clamping claw portion and the pressing ring, so that the cable is prevented from loosening or falling off due to pulling during use, and the stability of electrical connection is ensured.

[0014] Further, a sealing groove is arranged on the inner wall of the tail end of the tail cap, and a sealing ring is arranged in the sealing groove, wherein the hole diameter of the sealing ring is smaller than the diameter of the cable.

[0015] By adopting the above technical scheme, the sealing ring is tightly attached to the surface of the cable due to being pressed, so that effective waterproof sealing is formed.

[0016] Further, a foolproof protrusion is arranged on the outer wall of the plug-in end of the first shell, and a foolproof groove is arranged at the corresponding position of the inner wall of the socket shell.

[0017] By adopting the above technical scheme, it is ensured that the connector can only be plugged in the correct direction and position, so that the blind plugging effect is achieved.

[0018] In summary, the beneficial effects of the utility model are as follows:

[0019] 1. The utility model discloses a connector, which integrates high-voltage terminals and low-voltage terminals in the connector to process high-voltage and low-voltage signals simultaneously. The insulator is provided with a receiving hole to fully surround the high-voltage terminals, and the outer wall of the insulator is provided with a staggered step to increase the electrical gap and the creepage distance between the high-voltage terminals and the low-voltage terminals, thereby enhancing the high-voltage resistance of the connector.

[0020] 2. The utility model discloses a push-pull self-locking mechanism formed by an elastic buckle, a clamping groove and a movable shell, which can ensure a stable physical connection between the plug and the socket, prevent loosening and disconnection caused by external force, and release the locking by moving the movable shell, thereby facilitating quick plugging and unplugging.

[0021] 3. The utility model discloses a clamping jaw, a pressing ring and a tail cap, which can effectively clamp the cable passing therethrough and prevent loosening or falling caused by external pulling.

[0022] The above description is only a summary of the technical solution of the utility model, and the utility model can be implemented according to the content of the specification, and the above and other purposes, features and advantages of the utility model can be more obvious and easy to understand. The following preferred embodiments are described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural schematic view of the embodiment;

[0024] Figure 2 It is a sectional view of the connector plug of the embodiment;

[0025] Figure 3 It is an exploded view of the connector plug of the embodiment;

[0026] Figure 4 It is a sectional view of the connector socket of the embodiment.

[0027] In the figure: 1, connector plug; 11, first shell; 12, plug end; 121, insulator; 122, low-voltage terminal group; 123, receiving hole; 124, high-voltage terminal; 13, foolproof protrusion; 2, connector socket; 21, socket shell; 22, socket end; 23, foolproof groove; 3, push-pull self-locking mechanism; 31, clamping groove; 32, elastic buckle; 33, movable shell; 34, movable gap; 4, staggered step; 5, wire clamp shell; 51, clamping jaw; 6, tail cap; 7, pressing ring; 8, sealing groove; 9, sealing ring. DETAILED DESCRIPTION

[0028] In order to make the content of the utility model more easily and clearly understood, the utility model is further described below according to specific embodiments and in conjunction with the accompanying drawings.

[0029] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like used herein indicate the orientation or positional relationship based on the orientation or positional relationship shown in 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 device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise specified, the meaning of "a plurality of" is two or more.

[0030] Unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood through specific circumstances.

[0031] As shown in Figures 1 to 4 A circular self-locking high-voltage mixed connector, comprising a connector plug 1 and a connector socket 2, the connector plug 1 is inserted into the connector socket 2 to establish electrical connection; wherein the connector plug 1 of the embodiment comprises a first shell 11 and a plug end 12 accommodated in the first shell 11, and the plug end 12 comprises an insulator 121, a low-voltage terminal group 122 encapsulated in the insulator 121, a plurality of accommodating holes 123 arranged in the insulator 121 in the area around the low-voltage terminal group 122, and a high-voltage terminal 124 installed in the accommodating hole 123, and the accommodating hole 123 can fully surround the plug-in end of the high-voltage terminal 124; the connector socket 2 comprises a socket shell 21 connected with the first shell 11 and a socket end 22 accommodated in the socket shell 21 and adapted to the connection of the plug end 12, and a push-pull self-locking mechanism 3 is further arranged between the connector plug 1 and the connector socket 2 to ensure the close fit of the two.

[0032] The connector plug 1 of the present embodiment comprises a first shell 11 as an external protective layer, in which a plug end 12 as a connector core component is arranged. The plug end 12 comprises an insulator 121 embedded in the first shell 11, and the insulator 121 has a low-voltage terminal group 122 encapsulated in the central region of the insulator 121, specifically nine low-voltage terminal pins, for transmitting low-voltage electrical signals. In the present embodiment, six accommodation holes 123 are uniformly arranged around the low-voltage terminal group 122 in the peripheral region of the insulator 121, and each accommodation hole 123 is inserted with a high-voltage terminal 124, which is responsible for establishing a high-voltage connection. The insertion end of the high-voltage terminal 124 is fully surrounded by the accommodation hole 123. The full-surrounding structure can provide better physical isolation, not only preventing direct contact, but also reducing the influence of electromagnetic interference on low-voltage signals, and increasing the electrical gap between the high-voltage terminal 124 and the low-voltage terminal, thereby effectively preventing air breakdown or arc discharge caused by excessive voltage in the plugged state. The connector socket 2 is designed to match the connector plug 1, and has a socket shell 21 that can be tightly connected with the first shell 11 of the connector plug 1, and also contains a socket end 22 inside. The socket end 22 also comprises an insulator 121 and low-voltage terminal insertion holes and high-voltage terminal 124 insertion holes corresponding to the low-voltage terminal group 122 and the high-voltage terminal 124, to ensure precise matching with the plug end 12. In order to ensure the safety and stability of the connection, a push-pull self-locking mechanism 3 is arranged between the connector plug 1 and the socket, which can ensure that when the plug and the socket are combined, a stable electrical interface is formed between the two, avoiding accidental disconnection caused by vibration or other external forces, and can be unlocked by pushing and pulling.

[0033] As shown in Figure 2 and Figure 3 , the insulator 121 of the present embodiment is provided with a staggered step 4 on the outer wall for increasing the high-voltage resistance. The staggered step 4 is arranged around the outer wall of the insulator 121, forming a discontinuous path on the outer wall of the insulator 121, thereby increasing the creepage distance and the electrical gap, i.e. the shortest path length of the low-voltage terminal to the high-voltage terminal 124 along the surface of the insulator, which helps to prevent the occurrence of arc or leakage current in a high-voltage environment, while increasing the air gap between different potentials, increasing the high-voltage resistance of the connector, and realizing a product with a high-voltage resistance of 5000 volts.

[0034] As shown in Figure 2 and Figure 4As shown, the push-pull self-locking mechanism 3 of the present embodiment comprises a plurality of clamping grooves 31 arranged in the socket housing 21, a plurality of elastic buckles 32 arranged on the outer wall of the plug-in end of the first housing 11 for plugging into the clamping grooves 31 to form locking, and a movable housing 33 sleeved on the first housing 11, leaving a movable gap 34 between the first housing 11 and the insulator 121. The movable housing 33 can move in the axial direction of the first housing 11 and press the first housing 11 towards the movable gap 34, thereby causing the elastic buckle 32 to disengage from the clamping groove 31. When the connector plug 1 is plugged into the connector socket 2, the elastic buckle 32 on the outer wall of the plug-in end of the first housing 11 of the plug will be plugged into the corresponding clamping groove 31 of the socket housing 21, thereby forming a physically locked state. And an movable housing 33 is sleeved on the outside of the first housing 11, and a certain movable gap 34 is reserved between the first housing 11 and the insulator 121, and a push-pull hole surrounding the elastic buckle 32 is arranged at the corresponding position of the movable housing 33, and the movable housing 33 can move in the axial direction of the first housing 11. When unlocking is needed, the movable housing 33 is pushed or pulled towards the terminal end, so that it moves axially towards the terminal end. At this time, the front end step of the movable housing 33 can press the front end of the first housing 11 and the buckle inward, thereby causing the elastic buckle 32 to disengage from the clamping groove 31, achieving unlocking. It can be conveniently installed and used in relatively small space.

[0035] Further, the elastic buckle and the clamping groove 31 of the present embodiment are provided with a plurality of, and are uniformly arranged on the first housing 11 and the socket housing 21. A plurality of elastic buckles 32 are arranged on the outer wall of the first housing 11 (plug part), and a corresponding number of clamping grooves 31 are also uniformly arranged in the corresponding socket housing 21, reducing the connection looseness caused by local overload, and improving the locking performance.

[0036] As Figure 2 and Figure 3As shown, the tail end of the first shell 11 of the embodiment is also connected with a wire clamp shell 5 and a tail cap 6 wrapped around the wire clamp shell 5. The tail end of the wire clamp shell 5 is provided with a plurality of jaw parts 51 around the axis, and the inside of the tail cap 6 is provided with a pressing ring 7 for sleeving the outer periphery of each jaw part 51. The tail cap 6 is threadedly connected to the tail end of the first shell 11 and can advance along the axial direction of the first shell 11 to drive the pressing ring 7 to press each jaw part 51 to clamp the cable. The front end of the wire clamp shell 5 is inserted into the tail end of the first shell 11 to accommodate and fix the cable entering the inside of the connector and to protect the tail end of the high-voltage terminal 124 and the low-voltage terminal. A plurality of jaw parts 51 are uniformly distributed around the axis at the tail end of the wire clamp shell 5. The jaw parts 51 have a certain elasticity and can shrink inward when stressed. The tail cap 6 is wrapped outside the wire clamp shell 5. The tail cap 6 is provided with a pressing ring 7 inside. The pressing ring 7 is designed to be sleeved around the outer periphery of each jaw part 51. The front end of the tail cap 6 is connected to the tail end of the first shell 11 through a threaded structure. When the tail cap 6 is screwed, it will move along the axial direction of the first shell 11 and push the internal pressing ring 7 to move forward, thereby pressing each jaw part 51 to effectively clamp the passing cable and prevent the cable from loosening or falling off due to pulling during use, thereby ensuring the stability of the electrical connection.

[0037] As shown in Figure 2 and Figure 3 As shown, the tail end of the tail cap 6 of the embodiment is provided with a sealing groove 8 in the inner wall, and a sealing ring 9 is arranged in the sealing groove 8. The aperture of the sealing ring 9 is smaller than the diameter of the cable. The close contact between the sealing ring 9 and the cable can effectively block the entry of water, dust and other contaminants into the inside of the connector. Moreover, the aperture is smaller than the diameter of the cable, and as the tail cap 6 is tightened and advanced, it can play a role in extruding water.

[0038] 1. As shown, the outer wall of the plug-in end of the first shell 11 of the embodiment is provided with a foolproof protrusion 13, and the inner wall of the socket shell 21 is provided with a corresponding foolproof groove 23. A protrusion structure of a specific shape is arranged on the outer wall of the plug-in end of the first shell 11 (i.e. the plug part), and a matching groove structure is arranged on the inner wall of the socket shell 21 corresponding to the foolproof protrusion 13. When the user tries to insert the connector plug 1 into the socket, the plug can be smoothly inserted and electrically connected only when the foolproof protrusion 13 and the foolproof groove 23 are aligned. If the direction is incorrect, the foolproof protrusion 13 will prevent the plug from entering the socket, thereby avoiding incorrect installation and allowing blind insertion operation. Moreover, the shell material is resistant to high temperature and can be sterilized at a high temperature of 150 degrees.

[0039] In summary, the beneficial effects of the present embodiment are: the high-voltage terminal 124 and the low-voltage terminal are integrated in the connector to process high-voltage and low-voltage signals simultaneously. The accommodating hole 123 is arranged on the insulator 121 to fully surround the high-voltage terminal 124, and the staggered step 4 is arranged on the outer wall of the insulator 121, which can increase the electrical gap and the creepage distance between the two, and can enhance the high-voltage resistance of the connector. The push-pull self-locking mechanism 3 arranged by the elastic buckle 32, the clamping groove 31 and the movable shell 33 can ensure that a stable physical connection is formed between the plug and the socket, prevent loosening and disconnection caused by external force, and the movable shell 33 can be pushed and pulled to achieve unlocking, facilitating quick plugging and unplugging. The clamping jaw part 51, the pressing ring 7 and the tail cap 6 can effectively clamp the cable passing therethrough, prevent loosening or falling off caused by external pulling, and the sealing ring 9 with a hole diameter smaller than the diameter of the cable is arranged in the tail cap 6, which can be twisted and pushed forward to achieve the effect of extruding waterproof. The foolproof structure composed of the foolproof convex 13 and the foolproof groove 23 improves the plugging accuracy and realizes blind plugging operation.

[0040] The above-described embodiments are only preferred embodiments of the present application, and cannot be used to limit the protection scope of the present application. Any non-substantial changes and modifications made by those skilled in the art based on the present application are within the protection scope of the present application.

Claims

1. A circular self-locking high-voltage mixed-assembly connector, comprising a connector plug and a connector socket, characterized in that, The connector plug includes a first housing and a plug end housed within the first housing. The plug end includes an insulator, a low-voltage terminal group encapsulated within the insulator, a plurality of receiving holes arranged in the area surrounding the low-voltage terminal group of the insulator, and a high-voltage terminal installed in the receiving holes. The receiving holes are capable of completely surrounding the plug end of the high-voltage terminal. The connector socket includes a socket housing that is plugged into the first housing and a socket end that is housed within the socket housing and adapted to be connected to the plug end. A push-pull self-locking mechanism is also provided between the connector plug and the connector socket to ensure a tight fit between the two.

2. A circular self-locking high-voltage mixed-assembly connector according to claim 1, characterized in that, The outer wall of the insulator is provided with staggered steps to increase its high-voltage resistance.

3. A circular self-locking high-voltage mixed-assembly connector according to claim 1, characterized in that, The push-pull self-locking mechanism includes several slots provided in the socket housing, several elastic buckles arranged on the outer wall of the plug end of the first housing for plugging into the slots to form a lock, and a movable housing sleeved on the first housing. There is a movable gap between the first housing and the insulator. The movable housing can move along the axial direction of the first housing and press the first housing toward the movable gap, thereby causing the elastic buckles to disengage from the slots.

4. A circular self-locking high-voltage mixed-assembly connector according to claim 3, characterized in that, Multiple buckles and slots are provided and are evenly distributed on the first housing and the socket housing.

5. A circular self-locking high-voltage mixed-assembly connector according to claim 1, characterized in that, The tail end of the first housing is also connected to a wire clamp housing and a tail cap wrapped around the wire clamp housing. The tail end of the wire clamp housing is provided with a plurality of clamping claws around the axis. The tail cap is provided with a pressure ring for fitting around the outer periphery of each clamping claw. The tail cap is threaded to the tail end of the first housing and can advance along the axial direction of the first housing and drive the pressure ring to squeeze each of the clamping claws to clamp the cable.

6. A circular self-locking high-voltage mixed-assembly connector according to claim 5, characterized in that, The inner wall of the tail cap is provided with a sealing groove, and a sealing ring is provided in the sealing groove. The diameter of the sealing ring is smaller than the diameter of the cable.

7. A circular self-locking high-voltage mixed-assembly connector according to claim 1, characterized in that, The outer wall of the plug end of the first housing is provided with a foolproof protrusion, and the inner wall of the socket housing is provided with a foolproof groove at the corresponding position.

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