High-power power plug of electric bicycle

By designing a power plug with a rotating shell assembly and a spring component, the problems of heating and inconvenient angle adjustment during charging of electric bicycles with a high-power plug are solved, thereby improving safety and convenience.

CN223414412UActive Publication Date: 2025-10-03YANGZHOU ZHONGDE ELECTRIC APPLIANCE CO LTD
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Patent Information

Application Number
CN202422420975.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-08
Publication Date
2025-10-03
Estimated Expiration
2034-10-08

AI Technical Summary

Technical Problem

The existing high-power power plug of the electric bicycle easily heats up during charging, posing a safety hazard, and cannot be adjusted in angle and is inconvenient to unplug.

Method used

A power plug including a rotating shell assembly and a plug spring is designed. The rotating shell assembly can achieve a 90-degree rotation, increasing the elastic pressure and contact area of ​​the copper conductive spring and reducing the resistance; the plug spring and the rotating handle increase friction, making it easier to adjust the angle and pull out.

Benefits of technology

It effectively reduces the heat generated during charging, adapts to charging needs at different angles, and facilitates unplugging of the plug, thereby improving safety and convenience of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a high-power power plug of an electric bicycle, which belongs to the technical field of high-power power plugs of electric bicycles and comprises a sheath wire tube, a rotating shell component is arranged at one end of the sheath wire tube, a socket head is arranged on one side of the outer wall of the rotating shell component, and three groups of square plug holes with the same structure are arranged on one side of the socket head. According to the utility model, the two sides of the socket head can be conveniently turned by 90 degrees through the rotating shell assembly, so that the socket head is suitable for a narrow space and the occupied space is reduced; and the plug spring piece is beneficial to increasing the elastic pressure and the contact area of the copper conductive reed, the resistance during working conduction is conveniently reduced to reduce the heating degree during large-current charging of the vehicle, the shifting handle is rotated to conveniently turn, adjust and pull out the plug, and the situation that the plug is not easy to pull out due to the obstruction of an object is avoided.
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Description

Technical Field

[0001] The utility model belongs to the technical field of high-power power plugs for electric bicycles, in particular to a high-power power plug for electric bicycles. Background Art

[0002] On the market, most electric bicycles have high-power power plug charger interfaces that are prone to heating and burning. This is because the charging current is far greater than that of ordinary electric bicycles, which makes the heating problem at the interface more prominent. In addition, the existing products on the market are affected by the internal structure space and the size of the conductive reed, and there is a lack of conditions for product updates, which causes charging to cause the interface to heat up and poses a major fire hazard. The problem has not been solved for a long time, and the angle cannot be adjusted during charging and there are many inconveniences when unplugging.

[0003] According to the authorization publication number CN220209448U, an electric bicycle power plug is disclosed, which is provided with a first plug hole and a second plug hole through a plug-in component. Since the first plug hole and the second plug hole are independently provided, the plug and the socket can only be inserted when they are aligned with the first plug hole and the second plug hole, thereby ensuring the stability of the plug-in. In addition, the high-current terminal and the signal terminal are respectively provided in the first plug hole and the second plug hole. When the plug and the socket are plugged in, the hole wall of the first plug hole and the hole wall of the second plug hole can share the stress on the side of the terminal. The stress on the side of the high-current terminal and the signal terminal is small, so they are not easy to deform and have a long service life.

[0004] The above patent realizes the function of preventing users from accidentally touching the signal terminal, but it cannot solve the problem of interface heating caused by charging, avoid safety hazards, and there is no angle adjustment function to adapt to the needs of adjustment at different angles during charging, and it is inconvenient when unplugging, affecting user use. For this reason, we propose an electric bicycle high-power power plug. Utility Model Content

[0005] The purpose of the utility model is to provide a high-power power plug for an electric bicycle to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a high-power power plug for an electric bicycle, comprising a sheathed wire tube, a rotating shell assembly being provided at one end of the sheathed wire tube, a socket head being provided on one side of the outer wall of the rotating shell assembly, three groups of square plug holes of the same structure being opened on one side of the socket head, all three groups of square plug holes being provided with plug springs of the same structure, and a rotating dial handle being rotatably connected to the top of the rotating shell assembly.

[0007] Preferably, the rotating shell assembly includes a square shell arranged at one end of the sheath wire tube, a first wire tube is arranged at the top of one side of the inner cavity of the square shell, a second wire tube is arranged at the bottom of one side of the inner cavity of the square shell, a third wire tube is arranged at the bottom of one side of the inner cavity of the square shell adjacent to the second wire tube, and three groups of terminal blocks with the same structure are arranged at one end of the first wire tube, and a first rotating bearing seat is arranged at the top of one side of the square shell, the bottom of the first rotating bearing seat is rotatably connected to the rotating square shell, one end of the rotating square shell is connected to one side of the socket head, a second rotating bearing seat is arranged at the bottom of the rotating square shell, the second rotating bearing seat is arranged at the bottom of one side of the square shell, and the first wire tube extends to the inner wall of the first rotating bearing seat, one end of the second wire tube and the third wire tube extends to the inner wall of the second rotating bearing seat, and the three groups of terminal blocks all extend to the inner cavity of the rotating square shell.

[0008] Preferably, the spring plug component includes a copper spring square groove arranged on the inner wall of the square plug hole, two groups of elastic copper oblique abutment blocks of the same structure are symmetrically arranged at one end of the copper spring square groove, a copper convex contact plate is arranged on the top of the elastic copper oblique abutment block, and a copper conductive spring is arranged on the top of the copper convex contact plate.

[0009] Preferably, first friction rubber rings of the same structure are embedded in the outer walls of the first rotating bearing seat and the second rotating bearing seat.

[0010] Preferably, the connection terminal includes a polycarbonate sleeve provided on the outer wall, and the outer wall of the polycarbonate sleeve is provided on the inner wall of the rotating square shell.

[0011] Preferably, the rotating handle includes a pressing friction surface provided on the top of one side, and the bottom of the rotating handle is rotatably connected to a rotating shaft, a second friction rubber ring is embedded in the outer wall of the rotating shaft, and the bottom of the rotating shaft is provided on the top of the square shell.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention facilitates the ninety-degree rotation of the socket head on both sides by rotating the shell assembly, is suitable for narrow spaces and reduces space occupancy, and the inserting spring member is conducive to increasing the elastic pressure and contact area of ​​the copper conductive spring sheet, which is convenient for reducing the resistance during working conduction to reduce the heat generation level when the vehicle is charged with a large current, and the rotating handle facilitates the steering adjustment to unplug the plug, avoiding the obstruction of objects that makes it difficult to unplug the plug, wherein the live wire, the neutral wire and the ground wire can be respectively connected to three groups of terminal blocks with the same structure at one end through the first wire tube, the second wire tube and the third wire tube, when the square shell is manually rotated ninety degrees on both sides, the first rotating bearing seat and the second rotating bearing seat facilitate the ninety-degree rotation of the square shell on both sides, and at the same time, the ninety-degree rotation of the square shell on both sides drives the socket head to perform the same movement, and the first friction rubber ring with the same structure is embedded in the outer walls of the first rotating bearing seat and the second rotating bearing seat to increase the friction force when the rotation is completed. , to avoid loosening, further insert the three groups of square plug holes with the same structure on one side of the socket head into the socket, because the electric bicycle socket usually has a plug block that matches the square plug hole, the three groups of copper spring square grooves with the same structure will wrap the plug block, and the plug block will abut against the copper spring square groove. Two groups of elastic copper oblique abutment blocks with the same structure are symmetrically arranged at one end to move in opposite directions, driving the copper convex contact plate to contact the two groups of copper conductive springs with the same structure, which is beneficial to increase the elastic pressure of the copper conductive springs and the raised panel of the copper convex contact plate is beneficial to increase the contact area of ​​the copper conductive springs, thereby reducing the resistance during working conduction and reducing the heat generation of the vehicle during high-current charging. The polycarbonate sleeve is convenient for the wires to be collided or squeezed when turning 90 degrees on both sides. The toughness of polycarbonate can protect the wiring structure inside the terminal. By pressing the friction surface, it is beneficial to increase the friction of the hand contact when pulling out to avoid sliding. The second friction rubber ring is embedded in the outer wall of the shaft to increase the friction and prevent loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic cross-sectional view of the rotating shell assembly structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the structure of the spring insert of the utility model.

[0016] In the figure: 1. Sheathed wire tube; 2. Rotating shell assembly; 21. Square shell; 22. Third wire tube; 23. Second wire tube; 24. First wire tube; 25. First rotating bearing seat; 251. First friction rubber ring; 26. Terminal block; 261. Polycarbonate sleeve; 27. Rotating square shell; 28. Second rotating bearing seat; 3. Rotating handle; 31. Pressing friction surface; 32. Rotating shaft; 33. Second friction rubber ring; 4. Socket head; 5. Insert spring component; 51. Copper insert spring square groove; 52. Elastic copper oblique abutment block; 53. Copper convex contact plate; 54. Copper conductive spring; 6. Square plug hole. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] See also Figure 1-3 As mentioned in the background technology, the prior art has achieved the function of preventing users from accidentally touching the signal terminal in the above patent, but it cannot solve the problem of charging causing the interface to heat up, avoid the potential safety hazards, and there is no angle adjustment function during charging to adapt to the needs of different angles and there are many inconveniences when unplugging, which affects the user's use. The utility model provides a technical solution: comprising a sheathed wire tube 1, a rotating shell assembly 2 is provided at one end of the sheathed wire tube 1, a socket head 4 is provided on one side of the outer wall of the rotating shell assembly 2, and three groups of socket heads 4 are opened on one side The three groups of square plug holes 6 have the same structure and are all provided with spring plugs 5 of the same structure. The top of the rotating shell assembly 2 is rotatably connected to a rotating dial handle 3. The rotating shell assembly 2 facilitates the ninety-degree rotation of the socket head 4 on both sides, which is suitable for narrow spaces and reduces space occupancy. The spring plug 5 is beneficial to increase the elastic pressure and contact area of ​​the copper conductive spring 54, which is convenient for reducing the resistance during working conduction to reduce the heat generation level during high-current charging of the vehicle. The rotating dial handle 3 facilitates the steering adjustment to unplug the plug, avoiding the obstruction of objects that makes it difficult to unplug the plug.

[0019] See also Figure 2As shown, the rotating shell assembly 2 includes a square shell 21 arranged at one end of the sheathed wire tube 1, a first wire tube 24 is arranged on the top of one side of the inner cavity of the square shell 21, a second wire tube 23 is arranged on the bottom of one side of the inner cavity of the square shell 21, a third wire tube 22 is arranged on the bottom of one side of the inner cavity of the square shell 21 adjacent to the second wire tube 23, and three groups of terminal blocks 26 of the same structure are arranged on one end of the first wire tube 24, the second wire tube 23 and the third wire tube 22, and a first rotating bearing seat 25 is arranged on the top of one side of the square shell 21, and the bottom of the first rotating bearing seat 25 is rotatably connected to a rotating square shell 27, one end of the rotating square shell 27 is connected to one side of the socket head 4, and a second rotating bearing seat 28 is arranged on the bottom of the rotating square shell 27. It is placed at the bottom of one side of the square shell 21, and the first wire tube 24 extends to the inner wall of the first rotating bearing seat 25, one end of the second wire tube 23 and the third wire tube 22 extends to the inner wall of the second rotating bearing seat 28, and the three groups of terminal blocks 26 all extend to the inner cavity of the rotating square shell 27. The live wire, neutral wire and ground wire can be connected to the three groups of terminal blocks 26 with the same structure at one end through the first wire tube 24, the second wire tube 23 and the third wire tube 23 respectively. When the rotating square shell 27 is manually turned 90 degrees to both sides, the first rotating bearing seat 25 and the second rotating bearing seat 28 facilitate the 90-degree rotation of the rotating square shell 27 on both sides. At the same time, the 90-degree rotation of the rotating square shell 27 on both sides drives the socket head 4 to perform the same movement.

[0020] See also Figure 3 As shown, the spring member 5 includes a copper spring square groove 51 provided on the inner wall of the square plug hole 6. Two groups of elastic copper oblique abutment blocks 52 of the same structure are symmetrically provided at one end of the copper spring square groove 51. A copper convex contact plate 53 is provided on the top of the elastic copper oblique abutment block 52. A copper conductive spring piece 54 is provided on the top of the copper convex contact plate 53. When the socket head 4 is further inserted into the socket, the three groups of square plug holes 6 of the same structure are opened on one side of the socket head 4. Since the electric bicycle socket usually has plug blocks that match the square plug holes 6, the three groups The copper plug spring square groove 51 of the same structure will wrap the plug block, and the plug block will abut against one end of the copper plug spring square groove 51. Two groups of elastic copper oblique abutment blocks 52 of the same structure are symmetrically arranged to move in opposite directions, driving the copper convex contact plate 53 to contact the two groups of copper conductive springs 54 of the same structure, which is beneficial to increase the elastic pressure of the copper conductive spring 54 and the raised panel of the copper convex contact plate 53 is beneficial to increase the contact area with the copper conductive spring 54, thereby reducing the resistance during working conduction and reducing the heat generation of the vehicle during high-current charging.

[0021] See also Figure 2As shown, the outer walls of the first rotating bearing seat 25 and the second rotating bearing seat 28 are both embedded with the first friction rubber ring 251 of the same structure. By embedding the first friction rubber ring 251 of the same structure on the outer walls of the first rotating bearing seat 25 and the second rotating bearing seat 28, it is convenient to increase the friction force when the ninety-degree rotation of both sides of the rotating square shell 27 is completed to avoid loosening.

[0022] See also Figure 2 As shown, the terminal 26 includes a polycarbonate sleeve 261 provided on the outer wall, and the outer wall of the polycarbonate sleeve 261 is provided on the inner wall of the rotating square shell 27. The polycarbonate sleeve 261 facilitates the collision or squeezing of the wires when the rotating square shell 27 turns 90 degrees on both sides. The toughness of polycarbonate can protect the wiring structure inside the terminal 26.

[0023] See also Figure 1-2 As shown, the rotary handle 3 includes a pressing friction surface 31 provided on the top of one side, and the bottom of the rotary handle 3 is rotatably connected to a rotating shaft 32, the outer wall of the rotating shaft 32 is embedded with a second friction rubber ring 33, and the bottom of the rotating shaft 32 is set at the top of the square shell 21. Manually pressing the friction surface 31 is conducive to increasing the friction force of the hand contact when unplugging to avoid slipping. The second friction rubber ring 33 is embedded in the outer wall of the rotating shaft 32 to increase the friction force and prevent loosening. The rotary handle 3 is convenient for steering and adjusting to avoid obstacles through the rotating shaft 32 to unplug the plug, avoiding the obstruction of objects that makes it difficult to unplug the plug.

[0024] Working principle: When the user inserts the three groups of square plug holes 6 with the same structure on one side of the socket head 4 into the electric bicycle socket, because the electric bicycle socket usually has a plug block that matches the square plug hole 6, the three groups of copper spring square grooves 51 with the same structure will wrap the plug block, and the plug block will abut against the copper spring square groove 51. Two groups of elastic copper oblique abutting blocks 52 with the same structure are symmetrically arranged at one end, and move in opposite directions to drive the copper convex contact plate 53 to contact the two groups of copper conductive spring pieces 54 with the same structure, which is conducive to increasing the elastic pressure of the copper conductive spring pieces 54 and the raised panel of the copper convex contact plate 53 is conducive to increasing the contact area with the copper conductive spring pieces 54, thereby facilitating the reduction of the resistance during working conduction and reducing the heat generation during high-current charging of the vehicle;

[0025] Furthermore, the live wire, the neutral wire, and the ground wire can be connected to three groups of terminal blocks 26 with the same structure at one end through the first wire tube 24, the second wire tube 23, and the third wire tube 23. When the rotating square shell 27 is manually turned 90 degrees on both sides, the first rotating bearing seat 25 and the second rotating bearing seat 28 facilitate the 90-degree rotation of the rotating square shell 27 on both sides. At the same time, the 90-degree rotation of the rotating square shell 27 on both sides drives the socket head 4 to perform the same movement to adjust the required rotation angle. In addition, the outer walls of the first rotating bearing seat 25 and the second rotating bearing seat 28 are both embedded with first friction rubber rings 251 of the same structure to increase friction when the 90-degree rotation of the rotating square shell 27 is completed to prevent loosening. , because traditional straight-plug plugs may take up too much space in the length direction, causing other plugs to be unable to be inserted or crowded with each other, it is suitable for narrow spaces and reduces space occupancy. The polycarbonate sleeve 261 facilitates the collision or squeezing of the wires when the square shell 27 is rotated 90 degrees on both sides. The toughness of polycarbonate can protect the wiring structure inside the terminal 26. Manually pressing the friction surface 31 helps to increase the friction of the hand contact when unplugging to avoid sliding. The second friction rubber ring 33 is embedded in the outer wall of the shaft 32 to increase the friction and prevent loosening. The rotating handle 3 is convenient for steering and adjusting through the shaft 32 to avoid the obstruction to unplug the plug, avoiding the obstruction of objects that makes it difficult to unplug the plug.

[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-power power plug for an electric bicycle, characterized by: The invention comprises a sheathed wire tube (1), wherein a rotating shell assembly (2) is provided at one end of the sheathed wire tube (1), a socket head (4) is provided on one side of an outer wall of the rotating shell assembly (2), three groups of square plug holes (6) of the same structure are opened on one side of the socket head (4), and the three groups of square plug holes (6) are all provided with plug springs (5) of the same structure, and a rotating dial handle (3) is rotatably connected to the top of the rotating shell assembly (2).

2. The high-power power plug for an electric bicycle according to claim 1, characterized in that: The rotating shell assembly (2) comprises a square shell (21) arranged at one end of the sheathed wire tube (1); a first wire tube (24) is arranged at the top of one side of the inner cavity of the square shell (21); a second wire tube (23) is arranged at the bottom of one side of the inner cavity of the square shell (21); a third wire tube (22) is arranged adjacent to the second wire tube (23) at the bottom of one side of the inner cavity of the square shell (21); three groups of connecting terminals (26) of the same structure are arranged at one end of the first wire tube (24), the second wire tube (23) and the third wire tube (22); and a first rotating bearing seat (25) is arranged at the top of one side of the square shell (21). The bottom of the first rotating bearing seat (25) is rotatably connected to a rotating square shell (27), one end of the rotating square shell (27) is connected to one side of the socket head (4), the bottom of the rotating square shell (27) is provided with a second rotating bearing seat (28), the second rotating bearing seat (28) is provided at the bottom of one side of the square shell (21), and the first wire tube (24) extends to the inner wall of the first rotating bearing seat (25), one end of the second wire tube (23) and the third wire tube (22) extend to the inner wall of the second rotating bearing seat (28), and the three groups of the terminal blocks (26) all extend to the inner cavity of the rotating square shell (27).

3. The high-power power plug for an electric bicycle according to claim 1, characterized in that: The spring insert (5) comprises a copper spring insert square groove (51) arranged on the inner wall of the square plug hole (6); two groups of elastic copper oblique abutment blocks (52) of the same structure are symmetrically arranged at one end of the copper spring insert square groove (51); a copper convex contact plate (53) is arranged on the top of the elastic copper oblique abutment block (52); and a copper conductive spring sheet (54) is arranged on the top of the copper convex contact plate (53).

4. The high-power power plug for an electric bicycle according to claim 2, characterized in that: The outer walls of the first rotating bearing seat (25) and the second rotating bearing seat (28) are both embedded with first friction rubber rings (251) of the same structure.

5. The high-power power plug for an electric bicycle according to claim 2, characterized in that: The connecting terminal (26) includes a polycarbonate sleeve (261) provided on the outer wall, and the outer wall of the polycarbonate sleeve (261) is provided on the inner wall of the rotating square shell (27).

6. The high-power power plug for an electric bicycle according to claim 2, characterized in that: The rotating handle (3) comprises a pressing friction surface (31) provided at the top of one side, and the bottom of the rotating handle (3) is rotatably connected to a rotating shaft (32), the outer wall of the rotating shaft (32) is embedded with a second friction rubber ring (33), and the bottom of the rotating shaft (32) is provided at the top of the square shell (21).

Citation Information

Patent Citations

  • Power plug of electric bicycle

    CN220209448U