A power supply and signal plug for electric vehicles

Abstract

This utility model relates to the field of two-wheeled electric vehicle plug technology, specifically to an electric vehicle power supply and signal plug. One end of the plug body is connected to a cable, and the other end is a plug-in end. Signal copper pins and power copper pins are fixed to the inner side of the plug-in end. A retaining ring is also included, disposed on the outer periphery of one side of the plug-in end. A gap area exists between the retaining ring and the plug-in end, and elastically deformable buckles are formed around its periphery. A handle is rotatably connected to the plug body, and a cam that rotates with the handle is fixed to its inner side. A frame is movably disposed within the gap area and can move along the plug-in direction within the gap area. During rotation, the cam abuts against the frame and drives the frame to move along the plug-in direction, moving the frame outward from the gap area and opening the buckles that were previously inward. This utility model effectively solves the problem of poor shock resistance and anti-detachment capability of existing electric bicycle plug structures.

Description

Technical Field

[0001] This utility model relates to the field of plug technology for two-wheeled electric vehicles, specifically to a power supply and signal plug for electric vehicles. Background Technology

[0002] In new energy electric bicycles, power supply lines and signal lines are usually internally connected through plugs and matching interfaces to realize electrical transmission between the vehicle control system, power system and battery system. The current power supply and signal plugs of new energy electric bicycles have solved the problem of one-to-one connection. The original one-to-one power supply and signal transmission had problems such as high cost, large space occupation, low safety performance, poor signal transmission, and inconvenience for quick installation and connection.

[0003] However, existing internal plugs generally use a direct-plug fixing structure, which has limited shock resistance and anti-detachment capabilities: because electric bicycles vibrate frequently while riding, ordinary snap-fit ​​structures are prone to loosening or even falling off under long-term vibration, causing power or signal interruption and affecting the normal operation of the vehicle. Utility Model Content

[0004] Technical problems to be solved

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an electric vehicle power supply and signal plug, which can effectively solve the problem of poor shock resistance and anti-dislodgement ability of the existing electric bicycle plug structure.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] This utility model provides a power supply and signal plug for an electric vehicle, including a plug body, one end of which is connected to a cable and the other end is a plug-in end. Signal copper pins and power copper pins are fixed on the inner side of the plug-in end. It also includes a fixing ring, which is disposed on the outer periphery of one side of the plug-in end. A gap area is formed between the fixing ring and the plug-in end, and elastically deformable buckles are formed around it.

[0009] A handle is rotatably connected to the plug body, and a cam that rotates with the handle is fixed inside the handle;

[0010] The frame is movably disposed within the gap area and can move within the gap area along the insertion direction; wherein, during rotation, the cam abuts against the frame and drives the frame to move along the insertion direction, moving the frame outward from the gap area and opening the inwardly retracted buckle outward.

[0011] Furthermore, the fixing ring also includes a connecting part for supporting the buckle, with protruding teeth at the end of the buckle and notches at the corners of adjacent buckles.

[0012] Furthermore, a stepped surface is provided on the plug body near the plug end, and the retaining ring is fixed at the stepped surface.

[0013] Furthermore, the surface of the plug body has a cylindrical hole, an adjustment hole, and a threaded hole sequentially formed inward at the rotatable connection of the handle. The adjustment hole connects to the gap area, and the cam is rotatably disposed in the adjustment hole. During rotation, the outer edge of the cam extends into the gap area.

[0014] Furthermore, the cam has a square hole in the middle, the handle has a protrusion at the end for mating and insertion, and the handle has a connecting hole that matches the threaded hole.

[0015] Furthermore, the handle is a U-shaped frame, the main body of which rotates outside the plug body.

[0016] Furthermore, the outer surface of the frame that fits against the buckle is chamfered; a sealing gasket is glued and fixed to the outer end face of the frame.

[0017] Beneficial effects

[0018] The technical solution provided by this utility model has the following advantages compared with the known public technology:

[0019] This technical solution integrates power and signal pins within the same plug, reducing the number of parts and connection points, and improving overall transmission performance and safety. Simultaneously, by incorporating a rotatable handle and an inner cam structure on the plug body, the cam's rotation pushes the frame within the gap area to move along the insertion direction, causing the frame to expand outwards and open the elastically deformable latch on the fixing ring, achieving reliable mechanical locking with the socket end. Even under long-term vibration and impact conditions, this prevents the plug from loosening or falling off, maintaining long-term stable electrical connection. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the overall structure of the plug of this utility model;

[0022] Figure 2 This is an exploded view of the various components of the plug of this utility model;

[0023] Figure 3 This is a schematic diagram of the plug and interface socket of this utility model in a separated state;

[0024] Figure 4 This is a schematic diagram illustrating the plug and interface socket of this utility model for plug-in use;

[0025] Figure 5 This is a perspective view of the plug body of this utility model;

[0026] Figure 6 This is a perspective view of the fixing ring of this utility model;

[0027] Figure 7 This is a schematic diagram of the connection between the handle and the cam in this utility model;

[0028] The labels in the diagram represent: 10, plug body; 11, cable; 12, plug end; 13, signal pin; 14, power pin; 15, gap area; 16, stepped surface; 17, cylindrical hole; 18, adjustment hole; 20, retaining ring; 21, snap fastener; 22, locking tooth; 23, connecting part; 30, handle; 31, handle end protrusion; 32, handle connecting hole; 40, cam; 41, square hole in the middle of the cam; 50, interface socket; 51, mating plane; 52, slot; 60, frame; 61, chamfered bevel; 62, sealing gasket. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] The present invention will be further described below with reference to the embodiments.

[0031] Example:

[0032] The plug of this utility model is an improved design for the plug structure of electric vehicles. This solution proposes an integrated power supply and signal plug for electric bicycles that is compact, reliable in locking, and easy to operate, so that it can maintain a stable connection even under vehicle vibration and harsh environments. At the same time, it has good waterproof sealing and weather resistance to improve the overall stability and safety of the vehicle.

[0033] The core of this solution is the structural design of the plug body. The interface socket 50 used in conjunction with it will be described in detail in this embodiment. The structure of the plug in this solution will be described below:

[0034] like Figure 1-7 As shown, an electric vehicle power supply and signal plug includes a plug body 100. One end of the plug body 100 is connected to the electric vehicle power supply and signal system via a cable 11, and the other end is a plug terminal 12. Signal copper pins 13 and power copper pins 14 are fixedly installed on the inner side of the plug terminal 12, used for signal transmission and power supply respectively. This plug adopts an integrated design, combining power supply and signal protection with waterproof and anti-detachment features, making installation convenient and flexible.

[0035] A retaining ring 20 is provided around the outer periphery of the plug-in end 12, forming a gap area 15 between the retaining ring 20 and the plug-in end 12. The retaining ring 20 includes a connecting portion 23 for supporting the buckles 21. The retaining ring 20 has multiple elastically deformable buckles 21 around its periphery. The ends of the buckles 21 are provided with protruding teeth 22, and notches are provided at the corners of adjacent buckles 21 to ensure the stability of the elastic deformation of the buckles and the uniformity of the load-bearing capacity. The interface socket 50 has a pre-set groove 52 that mates with the teeth 22.

[0036] In the design for fixing the retaining ring 20 to the plug body 10, a stepped surface 16 is provided on the plug body 10 near the insertion end 12. The retaining ring 20 is independently injection molded during the manufacturing process, and the connecting part 23 of the retaining ring 20 is ultrasonically fixed to the stepped surface 16 to achieve a stable connection. At the same time, it can effectively reduce the difficulty and high cost of molding the two as a single unit.

[0037] A frame 60 is movably installed within the gap area 15. The frame 60 can move along the insertion direction. The frame 60 can be pushed forward or upward to open or release the surrounding latches, so as to achieve a stable connection between the locking teeth 22 and the locking groove 52 inside the interface socket 50, thus realizing an anti-disengagement mechanism.

[0038] It also includes a handle 30, the main body of which is rotatably connected to the plug body 10. A cam 40 that follows the rotation is fixed inside the handle 30. In this embodiment, the cam 40 adopts an eccentric circular structure, which can realize a continuous and stable extrusion stroke on the frame.

[0039] Specifically, a cylindrical hole 17, an adjustment hole 18, and a threaded hole are sequentially formed on the surface of the plug body 10 at the rotatable connection of the handle 30. The adjustment hole 18 communicates with the gap area 15. A cam 40 that can rotate is fixed inside the handle 30. The cam 40 is set in the adjustment hole 18. When rotated, its outer edge extends into the gap area 15 to squeeze and push the frame 60.

[0040] The handle 30 is a U-shaped frame, with its main body located outside the plug body 10, and can rotate around the cylindrical hole 17. In the assembly design of the handle 30 and the cam 40, the end of the handle 30 is provided with a protrusion 31 that mates with the square hole 41 in the middle of the cam 40, and the handle 30 is provided with a connecting hole 32 that matches the threaded hole. The handle 30 is fixed to the plug body 10 at the connecting hole 32 by a plug screw.

[0041] In this embodiment, the inner side of the frame 60 is preferably designed as a chamfered bevel 61, which fits the outer side of the buckle 21. This design allows the frame 60 to smoothly reset during the process of the buckle 21 elastically recovering and retracting when the cam 40 releases the pressure.

[0042] In addition, preferably, a sealing gasket 62 is glued and fixed on the outer end face of the frame 60, and a mating surface 51 that fits flatly with the sealing gasket 62 is provided at the interface socket 50. By pressing the sealing gasket 62 on the outer end face of the frame 60 with the cam 40, a good sealing effect is achieved by tightly fitting the sealing gasket 62 with the mating surface 51, which effectively improves the waterproof and dustproof performance.

[0043] During use, when the plug is inserted into the corresponding interface socket 50, the handle 30 rotates clockwise, causing the cam 40 to rotate. The outer edge of the cam 40 pushes the frame 60 to move outward along the insertion direction. The chamfered bevel 61 of the frame 60 causes the buckle 21 on the fixing ring 20 to open outward. The locking teeth 22 of the buckle 21 lock with the interface socket 50 to prevent the plug from falling off due to vibration.

[0044] When disassembly is required, the handle 30 rotates counterclockwise, the cam 40 pulls back the frame 60, and the buckle 21 returns to its retracted state, allowing the plug to be easily pulled out. Components such as the handle 30, cam 40, and frame 60 are made of high-strength, weather-resistant materials to ensure long-term reliability.

[0045] This embodiment integrates the power copper pin and signal copper pin into the same plug, reducing the number of parts and connection points, and improving transmission efficiency and safety. At the same time, the handle 30 with a cam mechanism controls the elastic buckle 21 to achieve mechanical locking, which greatly enhances the plug's shock resistance and anti-dislodgement ability, ensuring the stable operation of the electric vehicle in a vibration environment.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A power supply and signal plug for an electric vehicle, comprising a plug body, one end of which is connected to a cable, and the other end being a plug-in end, wherein a signal copper pin and a power copper pin are fixed on the inner side of the plug-in end, characterized in that, Also includes: A retaining ring is provided on the outer periphery of one side of the plug end, and a gap area is formed between the retaining ring and the plug end, and elastically deformable buckles are formed around its periphery; A handle is rotatably connected to the plug body, and a cam that rotates with the handle is fixed inside the handle; A frame, which is movably disposed within the gap area and can move within the gap area along the insertion direction; During rotation, the cam abuts against the frame and drives the frame to move along the insertion direction, moving the frame outward from the gap area and opening the buckle that was in the retracted state outward.

2. The power and signal plug for electric vehicles of claim 1, wherein, The fixing ring also includes a connecting part for supporting the buckle, and the end of the buckle is provided with protruding teeth, and a notch is provided at the corner of the adjacent buckle.

3. The power and signal plug for electric vehicles as claimed in claim 2, wherein, A stepped surface is provided on the plug body near the plug end, and the retaining ring is fixed at the stepped surface.

4. The power and signal plug for electric vehicles of claim 1, wherein, The surface of the plug body has a cylindrical hole, an adjustment hole and a threaded hole sequentially formed inward from the rotating connection of the handle. The adjustment hole connects to the gap area, and the cam is rotatably disposed in the adjustment hole. During rotation, the outer edge of the cam extends into the gap area.

5. The power and signal plug for electric vehicles as claimed in claim 4, wherein, The cam has a square hole in the middle, the handle has a protrusion at the end for insertion, and the handle has a connection hole that matches the threaded hole.

6. The power and signal plug for electric vehicles as claimed in claim 5, wherein, The handle is a U-shaped frame, the main body of which rotates outside the plug body.

7. The power and signal plug for electric vehicles of claim 1, wherein, The frame is fitted to the outer side of the buckle, which has a chamfered bevel.

8. The power and signal plug for electric vehicles of claim 7, wherein, A sealing gasket is glued and fixed to the outer end face of the frame.

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