Stable plugging structure of connector

Abstract

The utility model relates to the technical field of power transmission, in particular to a stable plugging structure of a connector, which comprises a plug main body and a socket main body, one end of the plug main body close to the socket main body is provided with a plugging part, and the outer side of the plugging part is provided with a first limiting groove along the axis direction of the plugging part. The end, away from the socket body, of the first limiting groove is communicated with a second limiting groove in the circumferential direction of the insertion part, the end, close to the plug body, of the socket body is provided with an opposite insertion part, the opposite insertion part is provided with an insertion hole, the interior of the insertion hole is provided with a first limiting block, and the periphery of the end, away from the socket body, of the insertion part is movably provided with a sleeve. A second limiting block is arranged on the inner wall of the sleeve, a third limiting groove is formed in the end, close to the plug body, of the opposite insertion part in the circumferential direction of the opposite insertion part, and one end of the third limiting groove communicates with a fourth limiting groove in the axial direction of the opposite insertion part. According to the utility model, stable plugging of the socket main body and the plug main body can be realized, and the reliability, stability and safety of plugging are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of power transmission, in particular to a stable plugging structure of a connector. Background Art

[0002] With the development of power electronic devices and the continuous expansion of application fields, high-current connectors, as an indispensable part of the power transmission system, play an important role in industrial automation, new energy vehicle charging facilities, data centers and other scenarios. High-current connectors are required to have high reliability, stability and safety.

[0003] At present, the plugging structures of high-current connectors widely used in the market mostly adopt a simple elastic piece type limiting mechanism to realize the connection and fixation between the plug and the socket. Although this limiting method has a simple structure and is easy to manufacture, there are some deficiencies in the actual use process. First, due to the long-term action of the plugging and unplugging force on the elastic piece, it is easy to deform or fatigue, resulting in a decrease in the contact pressure, and then making the connection between the plug and the socket unstable, and even loosening; second, frequent plugging and unplugging will cause the elasticity of the elastic piece to weaken, shortening the service life of the connector; the most crucial is that in some harsh environments (such as vibration, temperature change, etc.), if the plug and the socket become loose due to the failure of the elastic piece, it may cause arc discharge or other safety accidents. Summary of the Utility Model

[0004] The utility model aims to at least solve the technical problems existing in the prior art. For this purpose, the utility model provides a stable plugging structure of a connector, which can realize the stable plugging of the socket body and the plug body, and ensure the reliability, stability and safety of the plugging.

[0005] A stable plugging structure of a connector according to some embodiments of the utility model includes a plug body and a socket body. One end of the plug body close to the socket body is provided with a plugging portion. A first limiting groove is arranged on the outer side of the plugging portion along the axial direction of the plugging portion. One end of the first limiting groove far from the socket body is circumferentially communicated with a second limiting groove along the circumferential direction of the plugging portion. One end of the socket body close to the plug body is provided with a mating portion. A plugging hole is formed in the mating portion. A first limiting block is arranged inside the plugging hole. A sleeve is movably arranged on the outer periphery of one end of the plugging portion far from the socket body. A second accommodating gap is formed between the sleeve and the plugging portion. A second limiting block is arranged on the inner wall of the sleeve. A third limiting groove is arranged on one end of the mating portion close to the plug body along the circumferential direction of the mating portion. One end of the third limiting groove is axially communicated with a fourth limiting groove along the axial direction of the mating portion.

[0006] A stable plugging structure of a connector according to some embodiments of the utility model has at least the following beneficial effects:

[0007] In the utility model, a first limiting groove is arranged on the outer side of the insertion part along the axial direction of the insertion part. One end of the first limiting groove far away from the socket body communicates with a second limiting groove along the circumferential direction of the insertion part. A first limiting block is arranged inside the insertion hole. One end of the insertion part close to the plug body is provided with a third limiting groove along the circumferential direction of the insertion part. One end of the third limiting groove communicates with a fourth limiting groove along the axial direction of the insertion part. A second limiting block is arranged on the inner wall of the sleeve. When the plug body is docked with the socket body, the first limiting block extends into the first limiting groove. When the first limiting block reaches the first limiting groove, the second limiting block extends into the third limiting groove. Then the plug body is rotated, and the first limiting block enters from the first limiting groove into the second limiting groove. At this time, the plug body cannot be pulled outwards. At the same time, the second limiting block reaches the outside of the fourth limiting groove. Then the sleeve is moved to the inner side of the socket body, so that the second limiting block extends into the fourth limiting groove. At this time, the plug body cannot rotate, forming a lock. The utility model can realize the stable insertion of the socket body and the plug body, ensuring the reliability, stability and safety of the insertion.

[0008] According to a stable insertion structure of a connector in some embodiments of the utility model, the plug body includes a plug housing. The insertion part is arranged at one end of the plug housing close to the socket body. The sleeve is sleeved on the outer periphery of the plug housing. A retaining edge is arranged in the middle of the plug body. A convex block is convexly arranged on the inner wall of the sleeve. The convex block is located at one end of the retaining edge close to the socket body. A pushing spring is arranged between the retaining edge and the convex block.

[0009] According to a stable insertion structure of a connector in some embodiments of the utility model, a positioning groove is formed on the outer periphery of the plug housing. A positioning block is arranged inside the convex block. The positioning block extends into the positioning groove.

[0010] According to a stable insertion structure of a connector in some embodiments of the utility model, a plurality of positioning grooves are provided, and a plurality of positioning blocks are provided. The positioning grooves and the positioning blocks are arranged in one-to-one correspondence.

[0011] According to a stable insertion structure of a connector in some embodiments of the utility model, two first limiting blocks are provided, and two first limiting grooves are provided. The first limiting blocks and the first limiting grooves are arranged in correspondence. One end of the two first limiting grooves far away from the socket body communicates with a second limiting groove along the circumferential direction of the insertion part.

[0012] According to a stable insertion structure of a connector in some embodiments of the utility model, two second limiting blocks are provided, and two third limiting grooves are provided. The second limiting blocks and the third limiting grooves are arranged in correspondence. One end of the two third limiting grooves communicates with a fourth limiting groove along the axial direction of the insertion part.

[0013] A stable plugging structure of a connector according to some embodiments of the present utility model. A dust cover is provided on the outer periphery of the socket body. An arc-shaped first clamping block is provided on the dust cover. A second clamping block is provided on the top of the socket body. The first clamping block and the second clamping block are arranged correspondingly.

[0014] A stable plugging structure of a connector according to some embodiments of the present utility model. An indicating connector is provided on the top of the socket body. The indicating connector includes a connector housing and a metal connecting member. The metal connecting member is movably arranged in the connector housing. A lifting rod is provided at the bottom of the metal connecting member. The bottom of the lifting rod penetrates through the socket body and extends into the plugging hole. An arc-shaped abutting portion is provided at the bottom of the lifting rod.

[0015] A stable plugging structure of a connector according to some embodiments of the present utility model. The cross-sectional area of the first limiting block gradually increases from the end close to the second limiting groove to the end away from the second limiting groove.

[0016] A stable plugging structure of a connector according to some embodiments of the present utility model. A plug middle sleeve is arranged in the plug body. The plug middle sleeve includes a first middle sleeve and a second middle sleeve. The first middle sleeve and the second middle sleeve are detachably connected.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:

[0019] Figure 1 is a schematic structural diagram of an embodiment of the present utility model.

[0020] Figure 2 is a schematic structural diagram of the plug body of an embodiment of the present utility model Figure 1 .

[0021] Figure 3 is a schematic structural diagram of the plug body of an embodiment of the present utility model Figure 2 .

[0022] Figure 4 is a schematic structural diagram of the socket body of an embodiment of the present utility model.

[0023] Figure 5 is a cross-sectional view of the plug body of an embodiment of the present utility model.

[0024] Figure 6 A cross-sectional view of the socket body according to an embodiment of the present utility model.

[0025] Figure 7 A schematic structural view of the first limiting block according to an embodiment of the present utility model.

[0026] Reference numerals: 1, plug body; 2, socket body; 101, insertion part; 102, first limiting groove; 103, second limiting groove; 104, sleeve; 105, second accommodation gap; 106, second limiting block; 107, plug housing; 108, edge stop; 109, convex block; 110, pushing spring; 111, positioning groove; 112, positioning block; 113, plug tail sleeve; 114, wire tail nut; 115, plug middle sleeve; 116, first middle sleeve; 117, second middle sleeve; 201, mating insertion part; 202, insertion hole; 203, first limiting block; 204, third limiting groove; 205, fourth limiting groove; 206, dust cover; 207, nut; 208, gasket; 209, electric shock prevention cap; 210, indicating connector; 211, connector housing; 212, metal connecting piece; 213, lifting rod; 214, abutting part; 215, first clamping block; 216, second clamping block. Detailed implementation manners

[0027] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, left, right, front, back, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the module or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0029] In the description of the present utility model, if the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0030] In the description of the present utility model, unless otherwise clearly defined, terms such as setting, installation, and connection should be understood in a broad sense. Those skilled in the relevant technical field can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution.

[0031] AsFigures 1-7 As shown in the figure, an embodiment of the present utility model provides a stable plugging structure for a connector.

[0032] A stable plugging structure for a connector includes a plug body 1 and a socket body 2. One end of the plug body 1 close to the socket body 2 is provided with a plugging portion 101. A first limiting groove 102 is arranged on the outer side of the plugging portion 101 along the axis direction of the plugging portion 101. One end of the first limiting groove 102 far from the socket body 2 is circumferentially communicated with a second limiting groove 103 along the circumference of the plugging portion 101. One end of the socket body 2 close to the plug body 1 is provided with a mating portion 201. A plugging hole 202 is formed in the mating portion 201. A first limiting block 203 is arranged inside the plugging hole 202. A sleeve 104 is movably arranged on the outer circumference of one end of the plugging portion 101 far from the socket body 2. A second accommodating gap 105 is formed between the sleeve 104 and the plugging portion 101. A second limiting block 106 is arranged on the inner wall of the sleeve 104. One end of the mating portion 201 close to the plug body 1 is provided with a third limiting groove 204 along the circumferential direction of the mating portion 201. One end of the third limiting groove 204 is axially communicated with a fourth limiting groove 205 along the axial direction of the mating portion 201.

[0033] In the present utility model, the first limiting groove 102 is arranged on the outer side of the plugging portion 101 along the axis direction of the plugging portion 101. One end of the first limiting groove 102 far from the socket body 2 is circumferentially communicated with the second limiting groove 103 along the circumference of the plugging portion 101. The first limiting block 203 is arranged inside the plugging hole 202. One end of the mating portion 201 close to the plug body 1 is provided with the third limiting groove 204 along the circumferential direction of the mating portion 201. One end of the third limiting groove 204 is axially communicated with the fourth limiting groove 205 along the axial direction of the mating portion 201. The second limiting block 106 is arranged on the inner wall of the sleeve 104. When the plug body 1 is docked with the socket body 2, the first limiting block 203 extends into the first limiting groove 102. When the first limiting block 203 reaches the first limiting groove 102, the second limiting block 106 extends into the third limiting groove 204. Then the plug body 1 is rotated. The first limiting block 203 enters from the first limiting groove 102 into the second limiting groove 103. At this time, the plug body 2 cannot be pulled outwards. At the same time, the second limiting block 106 reaches the outside of the fourth limiting groove 205. Then the sleeve 104 is moved to the inner side of the socket body 2, so that the second limiting block 106 extends into the fourth limiting groove 205. At this time, the plug body 1 cannot rotate, forming a lock. The present utility model can realize the stable plugging of the socket body 2 and the plug body 1, ensuring the reliability, stability and safety of the plugging.

[0034] It can be understood that when it is necessary to pull out the plug, the sleeve 104 is pulled outwards, and the plug body 1 is rotated in the reverse direction to pull it out.

[0035] A stable plugging structure of a connector according to this embodiment, the plug body 1 includes a plug housing 107, the plugging portion 101 is arranged at one end of the plug housing 107 close to the socket body 2, the sleeve 104 is sleeved on the outer periphery of the plug housing 107, a retaining edge 108 is arranged in the middle of the plug body 1, a convex block 109 is convexly arranged on the inner wall of the sleeve 104, the convex block 109 is located at one end of the retaining edge 108 close to the socket body 2, and a pushing spring 110 is arranged between the retaining edge 108 and the convex block 109. Specifically, when the plug body 1 drives the second limiting block 106 to rotate to one end of the third limiting groove 204 close to the fourth limiting groove 205, the elastic restoring force of the pushing spring 110 pushes the sleeve 104, and the sleeve 104 drives the second limiting block 106 to enter the fourth limiting groove 205.

[0036] A stable plugging structure of a connector according to this embodiment, a positioning groove 111 is arranged on the outer periphery of the plug housing 107, a positioning block 112 is arranged inside the convex block 109, and the positioning block 112 extends into the positioning groove 111. Specifically, the cooperation of the positioning groove 111 and the positioning block 112 can limit the displacement of the sleeve 104.

[0037] A stable plugging structure of a connector according to this embodiment, a plurality of positioning grooves 111 are arranged, a plurality of positioning blocks 112 are arranged, and the positioning grooves 111 and the positioning blocks 112 are arranged in one-to-one correspondence. Specifically, the above structure has good stability.

[0038] A stable plugging structure of a connector according to this embodiment, two first limiting blocks 203 are arranged, two first limiting grooves 102 are arranged, the first limiting blocks 203 and the first limiting grooves 102 are arranged correspondingly, and second limiting grooves 103 are circumferentially communicated with one end of the two first limiting grooves 102 far from the socket body 2 along the circumferential direction of the plugging portion 101. Specifically, the above arrangement has high reliability and good stability.

[0039] A stable plugging structure of a connector according to this embodiment, two second limiting blocks 106 are arranged, two third limiting grooves 204 are arranged, the second limiting blocks 106 and the third limiting grooves 204 are arranged correspondingly, and fourth limiting grooves 205 are axially communicated with one end of the two third limiting grooves 204 along the axial direction of the docking portion 201. Specifically, the above arrangement has high reliability and good stability.

[0040] A stable plugging structure of a connector according to this embodiment, a dust cover 206 is arranged on the outer periphery of the socket body 2. Specifically, when the socket body 2 is not in use, the dust cover 206 can be covered.

[0041] Further, an arc-shaped first clamping block 215 is provided on the dust cover 206, and a second clamping block 216 is provided on the top of the socket body 2. The first clamping block 215 and the second clamping block 216 are arranged correspondingly. When the dust cover 206 is opened, the bottom of the first clamping block 215 abuts against the bottom of the second clamping block 216, and the dust cover 206 will not displace downward and can continuously maintain the open state. When it is necessary to close the dust cover 206, press the dust cover 206 forcefully, and the arc-shaped first clamping block 215 can generate slight deformation and then slide over the second clamping block 216 to close.

[0042] In a stable plugging structure of a connector according to this embodiment, two nuts 207 are screwed at the tail end of the socket body 2, and two gaskets 208 are arranged between the two nuts 207. Specifically, the above arrangement realizes the connection between the socket body 2 and an external power device.

[0043] In a stable plugging structure of a connector according to this embodiment, a plug tail sleeve 113 is screwed at the tail end of the plug body 1, and a wire tail nut 114 is arranged at the rear end of the plug tail sleeve 113. Specifically, the above arrangement realizes the connection between the plug body 1 and an external power device.

[0044] In a stable plugging structure of a connector according to this embodiment, an anti-electric shock cap 209 is provided at the front end of the mating part 201. Specifically, the above arrangement can prevent finger electric shock.

[0045] In a stable plugging structure of a connector according to this embodiment, an indicating connector 210 is detachably arranged on the top of the socket body 2. The indicating connector includes a connector housing 211 and a metal connecting piece 212. The metal connecting piece 212 is movably arranged in the connector housing 211. A lifting rod 213 is arranged at the bottom of the metal connecting piece 212. The bottom of the lifting rod 213 penetrates through the socket body 201 and extends into the plugging hole 202. An arc-shaped abutting part 214 is arranged at the bottom of the lifting rod 213. Specifically, when the plug body 1 is inserted, the outer wall of the plugging part 101 will abut against the abutting part 214, push the lifting rod 213 to move upward, and then drive the metal connecting piece 212 to displace upward, so as to be inserted into an external device to indicate that the plugging of the present utility model is in place.

[0046] A stable plugging structure of a connector according to this embodiment, the cross-sectional area of the first limiting block 203 gradually increases from the end close to the second limiting groove 103 to the end far from the second limiting groove 103. Specifically, the above setting enables the end with a smaller cross-sectional area of the first limiting block 203 to first contact the inner wall of the second limiting groove 103, and then continue to rotate the plug body 1. The inner wall of the second limiting groove 103 contacts the first limiting block 203. Since the socket body 2 is fixed, the plug body 1 will move towards the socket body 2. When the first limiting block 203 completely enters the second limiting groove 103, the plug body 1 and the socket body 2 can be stably connected. It can be understood that rotating the color ring can also make the first limiting block 203 completely enter the second limiting groove 103.

[0047] A stable plugging structure of a connector according to this embodiment, a plug middle sleeve 115 is arranged in the plug body 1, the plug middle sleeve 115 includes a first middle sleeve 116 and a second middle sleeve 117, and the first middle sleeve 116 and the second middle sleeve 117 are detachably connected. Specifically, the plug middle sleeve 115 is located at the tail end of the plugging part 101, and the detachable connection of the first middle sleeve 116 and the second middle sleeve 117 can facilitate the assembly, maintenance and replacement of internal components.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A stable plugging structure for a connector, characterized in that: It includes a plug body and a socket body. One end of the plug body close to the socket body is provided with a plug-in part. On the outer side of the plug-in part, a first limiting groove is arranged along the axial direction of the plug-in part. One end of the first limiting groove away from the socket body is circumferentially communicated with a second limiting groove along the circumference of the plug-in part. One end of the socket body close to the plug body is provided with a mating plug part. A plug-in hole is formed in the mating plug part. A first limiting block is arranged inside the plug-in hole. A sleeve is movably arranged on the outer circumference of the end of the plug-in part away from the socket body. A second accommodating gap is provided between the sleeve and the plug-in part. A second limiting block is arranged on the inner wall of the sleeve. One end of the mating plug part close to the plug body is provided with a third limiting groove along the circumferential direction of the mating plug part. One end of the third limiting groove is axially communicated with a fourth limiting groove along the axial direction of the mating plug part.

2. The stable plugging structure of a connector according to claim 1, characterized in that: The plug body includes a plug housing. The plug-in part is arranged at one end of the plug housing close to the socket body. The sleeve is sleeved on the outer circumference of the plug housing. A stop edge is arranged in the middle of the plug body. A convex block protrudes from the inner wall of the sleeve. The convex block is located at one end of the stop edge close to the socket body. A pushing spring is arranged between the stop edge and the convex block.

3. A stable plug-in structure of a connector according to claim 2, characterized in that: A positioning groove is formed on the outer circumference of the plug housing. A positioning block is arranged on the inner side of the convex block. The positioning block extends into the positioning groove.

4. The stable plugging structure of a connector according to claim 3, characterized in that: A plurality of the positioning grooves are provided, and a plurality of the positioning blocks are provided. The positioning grooves and the positioning blocks are arranged in one-to-one correspondence.

5. A stable plugging structure of a connector according to claim 1, characterized in that: Two first limiting blocks are provided, and two first limiting grooves are provided. The first limiting blocks and the first limiting grooves are arranged in correspondence. One end of the two first limiting grooves away from the socket body is circumferentially communicated with a second limiting groove along the circumference of the plug-in part.

6. A stable plugging structure of a connector according to claim 1, characterized in that: Two second limiting blocks are provided, and two third limiting grooves are provided. The second limiting blocks and the third limiting grooves are arranged in correspondence. One end of the two third limiting grooves is axially communicated with a fourth limiting groove along the axial direction of the mating plug part.

7. A stable plugging structure of a connector according to claim 1, characterized in that: A dust cover is arranged on the outer circumference of the socket body. An arc-shaped first clamping block is arranged on the dust cover. A second clamping block is arranged on the top of the socket body. The first clamping block and the second clamping block are arranged in correspondence.

8. A stable plugging structure of a connector according to claim 1, characterized in that: An indicating connector is arranged on the top of the socket body. The indicating connector includes a connector housing and a metal connecting piece. The metal connecting piece is movably arranged in the connector housing. A lifting rod is arranged at the bottom of the metal connecting piece. The bottom of the lifting rod penetrates through the socket body and extends into the plug-in hole. An arc-shaped abutting part is arranged at the bottom of the lifting rod.

9. A stable plugging structure of a connector according to claim 1, characterized in that: The cross-sectional area of the first limiting block gradually increases from the end close to the second limiting groove to the end away from the second limiting groove.

10. A stable plugging structure of a connector according to claim 1, characterized in that: A plug middle sleeve is arranged inside the plug body. The plug middle sleeve includes a first middle sleeve and a second middle sleeve. The first middle sleeve and the second middle sleeve are detachably connected.

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