Quick disassembly and assembly structure for battery compartment of electric vehicle

By using a sliding device, a magnetic attraction device, and a linkage locking device, the problems of wear and accidental contact during frequent disassembly and assembly of the battery compartment are solved, enabling rapid disassembly and assembly and stable connection of the battery compartment, thereby improving the service life and safety of the battery compartment.

CN223990108UActive Publication Date: 2026-03-13TIANJIN ALD TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Traditional mechanical locking or screw tightening structures are prone to wear after frequent disassembly and assembly, leading to loosening of the connection between the battery and the battery compartment. This can cause problems such as poor contact and power failure due to vibration during riding. Accidental contact with live interfaces during disassembly increases the risk of short circuits or electric shock. The single-button unlocking design lacks an anti-accidental contact mechanism, which can easily cause the battery compartment to open accidentally when the vehicle is tilted or in an accidental collision.

Method used

It employs a sliding device, a magnetic attraction device, and a linkage locking device. The sliding device reduces friction through guide rails and pulleys, the magnetic attraction device achieves automatic alignment, and the linkage locking device requires both buttons to be pressed simultaneously to retract the pin, preventing accidental activation. The protective cover is fixed by a locking block and a locking groove.

Benefits of technology

Reduce frictional wear between the battery compartment and the base, improve installation efficiency and safety, prevent batteries from falling out, and enhance the stability and lifespan of the battery compartment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223990108U_ABST
    Figure CN223990108U_ABST
Patent Text Reader

Abstract

The utility model provides an electric vehicle battery compartment quick dismounting structure, which comprises a battery box and a base, the base is fixedly arranged on a frame, the bottom of the battery box is connected with the base through a sliding device, and the inner side wall of the base is provided with a magnetic device for positioning and buffering the battery box. A plug pin is arranged in the base through a linkage lock catch device, a socket is arranged in the battery box, the plug pin and the socket are used in a matched mode, and a protective cover is installed on the top of the base; according to the utility model, the sliding device is additionally arranged, so that the frictional loss of the battery box and the base during mounting and dismounting is reduced, and the service life is prolonged; by adding the magnetic attraction device, the battery box can be automatically attracted and aligned after sliding in place, physical friction is reduced, and the mounting efficiency is improved; by adding the linkage lock catch device, the battery can be withdrawn only by simultaneously pressing the plug pins by the buttons on the two sides, so that the battery is prevented from falling off due to single-point mistaken touch.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of quick assembly and disassembly structures for electric vehicle battery compartments, and more particularly to a quick assembly and disassembly structure for an electric vehicle battery compartment. Background Technology

[0002] With the increasing popularity of small electric vehicles such as electric bicycles and electric motorcycles, the battery compartment, as a core component, directly affects user experience and vehicle maintenance costs due to its disassembly and assembly efficiency and safety.

[0003] Currently, the mainstream battery compartment disassembly and assembly technologies on the market mainly rely on mechanical latches, threaded tightening, or plug-in structures, but they still have the following significant drawbacks: Traditional mechanical latches (such as pins and buckles) or screw tightening structures are prone to wear after frequent disassembly and assembly, resulting in loose connection between the battery and the compartment, causing problems such as poor contact and power failure due to vibration during riding; and during disassembly, there is a risk of accidentally touching live interfaces, increasing the risk of short circuits or electric shock; although some designs introduce a single button for unlocking, they lack a mechanism to prevent accidental touches, which can easily cause the battery compartment to open accidentally when the vehicle is tilted or in an accidental collision. Utility Model Content

[0004] To address the issues of wear and tear on traditional mechanical locking mechanisms (such as pins and latches) or screw-type tightening structures after frequent disassembly and assembly, leading to loose battery-cell connections and potential contact problems or power outages during riding due to vibration; and the risk of accidental contact with live interfaces during disassembly, increasing the risk of short circuits or electric shock, while some designs incorporate a single button for unlocking, the lack of an anti-accidental contact mechanism means the battery compartment can easily open accidentally when the vehicle tipps over or during a collision, this invention provides a quick-release and disassembly structure for an electric vehicle battery compartment.

[0005] The present invention provides a quick-release and assembly structure for an electric vehicle battery compartment, which adopts the following technical solution:

[0006] A quick-release structure for an electric vehicle battery compartment includes a battery box and a base. The base is fixedly mounted on the vehicle frame. The bottom of the battery box is connected to the base via a sliding device. The inner side wall of the base is provided with a magnetic suction device for positioning and buffering the battery box. The inside of the base is provided with a pin via a linkage locking device. The inside of the battery box is provided with a socket. The pin and the socket are used together. The top of the base is provided with a protective cover.

[0007] Furthermore: the sliding device includes a guide rail, a baffle, and pulleys. The outer wall of the base is equipped with a guide rail, and a baffle is installed at one end of the guide rail via an elastic rotating shaft. The bottom of the battery box is provided with an installation groove, and pulleys are provided inside the installation groove. The number of pulleys is N, where N≥2. The installation groove corresponds one-to-one with the guide rail, and the pulleys slide inside the guide rail.

[0008] Furthermore: the magnetic attraction device includes a positioning magnet and a groove magnet. The inner sidewall of the base is equipped with a positioning magnet, and the number of positioning magnets is M, where M≥2. The outer sidewall of the battery box is provided with a groove magnet, and the groove magnet corresponds one-to-one with the positioning magnet.

[0009] Furthermore: the linkage locking device includes a button, a spring, and a connecting rod. A button is provided on the outer wall of the base. One end of the spring is connected to the bottom of the button, and the other end of the spring is connected to the inner wall of the base. One end of the connecting rod is connected to the bottom of the button via a pivot, and the other end of the connecting rod is connected to the outer wall of the pin via a pivot. There are two buttons, and the two buttons are respectively rotatably connected to both sides of the pin via the connecting rod.

[0010] Furthermore: the outer wall of the protective cover is provided with a locking block, and the top of the base is provided with a locking groove, the locking block and the locking groove are used in conjunction;

[0011] Furthermore: the inner wall of the protective cover is connected to a cushioning pad for buffering via an elastic element;

[0012] Furthermore, a handle is provided on the outer wall of the battery box.

[0013] In summary, the beneficial effects of this utility model are as follows:

[0014] To address the aforementioned issues, this invention reduces frictional wear between the battery box and the base during installation and disassembly by adding a sliding device, thus extending the battery's lifespan. A magnetic attraction device is added to automatically align the battery box after it slides into place, reducing physical friction and improving installation efficiency. A linkage locking device is added, requiring both buttons on either side to be pressed simultaneously to retract the latch, preventing accidental battery detachment due to a single point of contact. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the battery box of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of the battery box of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of the base of this utility model;

[0019] Figure 5 This utility model Figure 4 Enlarged structural diagram of section A;

[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the base of this utility model;

[0021] Figure 7 This utility model Figure 6 Enlarged structural diagram of section B;

[0022] Figure 8 This is a schematic diagram of the overall structure of the protective cover of this utility model.

[0023] As shown in the figure: 1-base, 2-battery box, 3-protective cover, 11-guide rail, 12-pin, 13-slot, 14-positioning magnet, 112-baffle, 101-button, 102-spring, 103-connecting rod, 21-mounting slot, 22-pulley, 23-handle, 24-socket, 25-groove magnet, 31-block, 32-buffer pad. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1-8 The present invention will be further described in detail below:

[0025] This utility model discloses a quick-release and detachable structure for an electric vehicle battery compartment, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 As shown, a quick-release structure for an electric vehicle battery compartment includes a battery box 2 and a base 1. The base 1 is fixedly mounted on the vehicle frame. The bottom of the battery box 2 is connected to the base 1 via a sliding device. The inner side wall of the base 1 is provided with a magnetic attraction device for positioning and buffering the battery box 2. The interior of the base 1 is provided with a pin 12 via a linkage locking device. The interior of the battery box 2 is provided with a socket 24. The pin 12 and the socket 24 cooperate with each other. A protective cover 3 is installed on the top of the base 1. In this embodiment, the addition of a sliding device reduces frictional wear between the battery box 2 and the base 1 during installation and disassembly, thus extending the service life. The addition of a magnetic attraction device enables the battery box 2 to automatically adhere and align after sliding into place, reducing physical friction and improving installation efficiency. The addition of a linkage locking device requires both buttons 101 to be pressed simultaneously to retract the pin 12, preventing accidental battery detachment due to single-point contact.

[0026] like Figure 3 , Figure 4 , Figure 5As shown, the sliding device includes a guide rail 11, a baffle 112, and a pulley 22. The guide rail 11 is installed on the outer wall of the base 1. One end of the guide rail 11 is equipped with a baffle 112 via an elastic rotating shaft. The bottom of the battery box 2 has an installation groove 21. The installation groove 21 is equipped with a pulley 22. The number of pulleys 22 is N, where N≥2. The installation groove 21 corresponds one-to-one with the guide rail 11. The pulleys 22 slide inside the guide rail 11. In this embodiment, by adding a guide rail 11, the pulleys 22 slide inside the guide rail 11. When the pulleys 22 slide into the guide rail 11, they press against the baffle 112. When the pulleys 22 are completely inserted into the guide rail 11, the baffle 112 returns to its original position under the action of the elastic rotating shaft, preventing the battery box 2 from falling off when the protective cover 3 is not installed.

[0027] like Figure 1 , Figure 2 , Figure 3 As shown, the magnetic attraction device includes a positioning magnet 14 and a groove magnet 25. The positioning magnet 14 is installed on the inner side wall of the base 1, and the number of positioning magnets 14 is M, where M≥2. The groove magnet 25 is provided on the outer side wall of the battery box 2, and the groove magnet 25 corresponds one-to-one with the positioning magnet 14. In this embodiment, by adding the magnetic attraction device, the battery box 2 can be automatically attracted and aligned after sliding into place, reducing physical friction and improving installation efficiency. During the electric vehicle's operation, the magnetic attraction device further fixes the battery box 2, reducing the shaking between the base 1 and the protective cover 3, making the battery box 2 more stable.

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 The linkage locking device includes a button 101, a spring 102, and a connecting rod 103. The button 101 is provided on the outer wall of the base 1. One end of the spring 102 is connected to the bottom of the button 101, and the other end of the spring 102 is connected to the inner wall of the base 1. One end of the connecting rod 103 is connected to the bottom of the button 101 through a pivot, and the other end of the connecting rod 103 is connected to the outer wall of the pin 12 through a pivot. There are two buttons 101, and the two buttons 101 are rotatably connected to both sides of the pin 12 through the connecting rod 103. In this embodiment, by adding the linkage locking device, when both buttons 101 are pressed down at the same time, the pin 12 retracts inward under the action of the connecting rod 103. When the button 101 is released, the button 101 is pushed up under the action of the spring 102, and the pin 12 extends outward under the action of the connecting rod 103, thus preventing the battery box 2 from falling off due to accidental pressing of the button 101 on one side.

[0029] like Figure 1 , Figure 4 , Figure 8As shown, the outer wall of the protective cover 3 is provided with a locking block 31, and the top of the base 1 is provided with a locking groove 13. The locking block 31 and the locking groove 13 are used together. In this embodiment, the protective cover 3 is fixed by adding the locking block 31 and the locking groove 13.

[0030] like Figure 8 As shown, the inner wall of the protective cover 3 is connected to a buffer pad 32 for cushioning via an elastic element; in this embodiment, by adding the buffer pad 32, the shaking of the battery box 2 inside the base 1 and the protective cover 3 during driving is effectively reduced, making the battery box 2 more stable.

[0031] like Figure 3 As shown, a handle 23 is provided on the outer side wall of the battery box 2.

[0032] The implementation principle of this utility model embodiment is as follows:

[0033] Slide the battery box 2 into the base 1 along the guide rail 11. You will hear a "click" sound when the positioning magnet 14 and the groove magnet 25 attract each other, which proves that the battery box 2 has slid into place and locked. Fix the protective cover 3 to the base 1. Slide the positioning blocks on both sides of the protective cover 3 into the positioning grooves on the base 1, and the locking block 31 is locked into the locking groove 13 to complete the installation. When it is necessary to disassemble, remove the protective cover 3 and press the buttons 101 on both sides at the same time to lift the protective cover 3 from the base 1 to complete the disassembly.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. The various components mentioned in this utility model are common technologies in the existing field. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick disassembly structure of an electric vehicle battery compartment, comprising a battery box (2) and a base (1), wherein the base (1) is fixedly installed on a vehicle frame, characterized in that, The bottom of the battery box (2) is connected with the base (1) through a sliding device, the inner side wall of the base (1) is provided with a magnetic attraction device for positioning and buffering of the battery box (2), the inside of the base (1) is provided with a bolt (12) through a linkage locking device, the inside of the battery box (2) is provided with a socket (24), the bolt (12) and the socket (24) are used in cooperation, and the top of the base (1) is provided with a protective cover (3).

2. The quick dismounting structure of the battery compartment of the electric vehicle according to claim 1, characterized in that: The sliding device comprises a guide rail (11), a baffle (112) and a pulley (22), the outer side wall of the base (1) is provided with the guide rail (11), one end of the guide rail (11) is provided with the baffle (112) through an elastic rotating shaft, the bottom of the battery box (2) is provided with an installation groove (21), the inside of the installation groove (21) is provided with the pulley (22), the number of the pulleys (22) is N, N is greater than or equal to 2, the installation groove (21) corresponds to the guide rail (11) one by one, and the pulley (22) slides in the guide rail (11).

3. The quick-release and disassembly structure for an electric vehicle battery compartment according to claim 1, characterized in that: The magnetic attraction device comprises a positioning magnet (14) and a groove magnet (25), the inner side wall of the base (1) is provided with the positioning magnet (14), the number of the positioning magnets (14) is M, M is greater than or equal to 2, and the outer side wall of the battery box (2) is provided with the groove magnet (25), the groove magnet (25) corresponds to the positioning magnet (14) one by one.

4. The quick-release and disassembly structure for an electric vehicle battery compartment according to claim 1, characterized in that: The linkage locking device comprises a button (101), a spring (102) and a connecting rod (103), the outer side wall of the base (1) is provided with the button (101), one end of the spring (102) is connected to the bottom of the button (101), the other end of the spring (102) is connected to the inner side wall of the base (1), one end of the connecting rod (103) is connected to the bottom of the button (101) through a rotating shaft, the other end of the connecting rod (103) is connected to the outer side wall of the bolt (12) through a rotating shaft, the number of the buttons (101) is two, and the two buttons (101) are rotatably connected to the two sides of the bolt (12) through the connecting rods (103).

5. The quick-release and disassembly structure for an electric vehicle battery compartment according to claim 1, characterized in that: The outer side wall of the protective cover (3) is provided with a clamping block (31), the top of the base (1) is provided with a clamping groove (13), and the clamping block (31) and the clamping groove (13) are used in cooperation.

6. The quick dismounting structure of the battery compartment of the electric vehicle according to claim 1, characterized in that: The inner side wall of the protective cover (3) is connected with a buffer pad (32) for buffering through an elastic member.

7. The quick dismounting structure of the battery compartment of the electric vehicle according to claim 1, characterized in that: The outer side wall of the battery box (2) is provided with a handle (23).