Quick-mounting device electric vehicle chassis convenient to replace

By designing a quick installation device including mounting shell and battery shell, the fast disassembly and installation of the battery shell is achieved using components such as card blocks, connecting blocks, connecting rods, and springs. The problem of the existing electric vehicle chassis battery cannot be replaced quickly, and the rapidity of battery replacement and vehicle operation stability are improved.

CN222921367UActive Publication Date: 2025-05-30HUBEI SAIFU PRECISION TECH CO LTD
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Patent Information

Application Number
CN202421491976.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-27
Publication Date
2025-05-30
Estimated Expiration
2034-06-27

AI Technical Summary

Technical Problem

The batteries on the chassis of existing electric vehicles cannot be replaced quickly due to welding and bolting technology, resulting in a long charging waiting time, which affects the vehicle's working and transportation efficiency. The battery is installed above the base plate, with a high center of gravity and low vehicle operation stability.

Method used

A quick installation device including the installation shell and the battery shell is designed. The rapid disassembly and installation of the battery shell is achieved through components such as card blocks, connecting blocks, connecting rods, and springs. The sliding grooves and sliding blocks are used to achieve sliding contact between the battery shell and the installation shell, simplifying the battery replacement process.

Benefits of technology

It realizes rapid battery replacement, shortens charging waiting time, improves vehicle working and transportation efficiency, and reduces the center of gravity of the vehicle through the down-mounted battery design, improves the operation stability of the vehicle, and reduces the height occupation of the vehicle, which is suitable for the compression of the external dimensions of underground mining vehicles.

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Abstract

The utility model relates to the field of electric vehicle chassis, in particular to a quick-mounting device electric vehicle chassis convenient to replace, which comprises a mounting shell and a battery shell, the upper surface of the mounting shell is fixedly connected with equidistantly arranged shells, and the inner wall of each shell is slidably connected with a clamping block and a connecting block; the faces, away from each other, of the clamping blocks are fixedly connected with the faces, close to each other, of the corresponding connecting blocks, the battery shell is moved downwards so that the bottom edge can make contact with the inclined faces of the clamping blocks, the clamping blocks are jacked open, the clamping blocks drive the connecting blocks to move and compress springs, and when the battery shell is installed in place, the clamping blocks are reset through the springs, the battery shell is limited, and the battery shell is fixed. The pull rod is pulled to drive the connecting rod and the connecting block to move, limitation of the clamping block on the battery shell is relieved, the disassembling effect of the battery shell is achieved, and then the device can shorten the waiting time caused in the charging process by rapidly replacing the battery, and the vehicle working and transporting efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle chassis, in particular to a quick-installation device electric vehicle chassis that is convenient to replace. Background Technique

[0002] An automobile chassis is composed of four parts: a powertrain, a running gear, a steering system, and a braking system. The function of the chassis is to support and install the automobile engine and its various components and assemblies, form the overall shape of the automobile, and receive the power of the engine to make the automobile move and ensure normal driving. For an electric vehicle chassis, the power source is replaced with a battery.

[0003] On an electric vehicle chassis, the battery is usually installed on the upper surface of the vehicle body or under the frame. Electric vehicle batteries are divided into two categories: storage batteries and fuel cells. Storage batteries are suitable for pure electric vehicles, including lead-acid batteries, nickel-metal hydride batteries, sodium-sulfur batteries, secondary lithium batteries, air batteries, ternary lithium batteries. Fuel cells are dedicated to fuel cell electric vehicles, including alkaline fuel cells, phosphoric acid fuel cells, molten carbonate fuel cells, solid oxide fuel cells, proton exchange membrane fuel cells, and direct methanol fuel cells.

[0004] However, for the batteries on the existing electric vehicle chassis, since welding and bolt technologies are mostly used, the batteries cannot be quickly replaced, which results in a long waiting time during the charging process, affecting the vehicle's working and transportation efficiency. Moreover, the existing batteries are installed above the bottom plate, with the center of gravity being high, resulting in low vehicle operation stability. In addition, the batteries occupy a large size in the height direction, making it inconvenient to compress the overall external dimensions of underground mining vehicles.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Content of the Utility Model

[0006] Aiming at the deficiencies and defects in the above background technique that the existing technology cannot quickly replace the battery, which leads to a long waiting time during the charging process and affects the vehicle's working and transportation efficiency.

[0007] A quick - installation device for an electric vehicle chassis that is easy to replace, disclosed by the present utility model, includes an installation shell and a battery shell. The upper surface of the installation shell is fixedly connected with a plurality of shells arranged at equal distances. The inner wall of each shell is slidably connected with a clamping block and a connecting block. One side of each clamping block away from each other is fixedly connected to one side of the corresponding connecting block close to each other. One side of each connecting block away from each other is fixedly connected with two connecting rods and two springs. The front and back of the installation shell are both provided with pull rods. One side of each pull rod close to each other is fixedly connected to the other ends of the corresponding connecting rods and springs. The inner wall of the installation shell is provided with two sliding grooves. The inner wall of the installation shell is in sliding contact with the outer surface of the battery shell. The inner wall of each sliding groove is slidably connected with a sliding block. One side of each sliding block close to each other is fixedly connected to the left side and the right side of the battery shell.

[0008] Further, the inner wall of the battery shell is installed with a plurality of battery packs arranged at equal distances. The upper surface of the battery shell is fixedly connected with two handles.

[0009] Further, the front and back of the installation shell are both fixedly connected with a first sleeve. The inner wall of each first sleeve is slidably connected with a second sleeve.

[0010] Further, the outer surface of each second sleeve is fixedly connected with a vertical rod. The outer surface of each vertical rod is fixedly connected with the outer surface of the corresponding pull rod.

[0011] Further, the bottom surface of the installation shell is fixedly connected with a bottom plate. The upper surface of the bottom plate is fixedly installed with a frame. Two wheel sets are installed on the front and back of the bottom plate.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. By setting components such as clamping blocks, connecting blocks, connecting rods, and springs, when the battery shell is moved downward so that the bottom edge contacts the inclined surface of the clamping block, the clamping block is pushed open. The clamping block drives the connecting block to move and compresses the spring. When the battery shell is installed in place, the spring realizes the reset of the clamping block to limit the battery shell. By pulling the pull rod to drive the connecting rod and the connecting block to move, the restriction of the clamping block on the battery shell is released, achieving the disassembly effect of the battery shell. Furthermore, the device can quickly replace the battery, shorten the waiting time caused by the charging process, and improve the working and transportation efficiency of the vehicle.

[0014] 2. The utility model realizes the support effect on the frame by setting components such as an installation shell, a battery shell, a bottom plate, and a frame. The frame is installed on the surface of the bottom plate, and the installation shell is installed on the surface of the bottom plate. The inner wall of the installation shell is adapted to the surface of the battery shell. By connecting the battery pack to the battery shell, the assembly of the motor is realized. The battery is placed at the middle position of the bottom plate, making the center of gravity of the whole vehicle low, improving the operation stability of the vehicle, and occupying a small size in the height direction, which is convenient for compressing the overall external dimension of the underground mining vehicle and improving the passing performance of the vehicle. Description of the Drawings

[0015] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation to the present application. In the drawings:

[0016] Figure 1 is a three-dimensional structure schematic diagram of the whole utility model;

[0017] Figure 2 is a front view structure schematic diagram of the utility model;

[0018] Figure 3 is a connection relationship structure schematic diagram between the sliding groove and the sliding block of the utility model;

[0019] Figure 4 is a connection relationship structure schematic diagram between the clamping block and the connecting block of the utility model.

[0020] In the figure: 1. housing; 2. wheel set; 3. clamping block; 4. connecting block; 5. connecting rod; 6. pull rod; 7. spring; 8. installation shell; 9. battery shell; 10. battery pack; 11. handle; 12. sliding groove; 13. sliding block; 14. sleeve one; 15. sleeve two; 16. vertical rod; 17. bottom plate; 18. frame. Detailed Embodiments

[0021] The following will disclose multiple embodiments of the present utility model in the form of drawings. For the sake of clarity, many physical details will be described together in the following narrative. However, it should be understood that these physical details are not used to limit the present utility model. That is to say, in some embodiments of the present utility model, these physical details are not necessary. In addition, for the purpose of simplifying the drawings, some well-known and commonly used structures and components will be shown in a simple schematic manner in the drawings.

[0022] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4, A quick - installation device for an electric vehicle chassis that is easy to replace according to the present utility model includes an installation shell 8 and a battery shell 9. The upper surface of the installation shell 8 is fixedly connected with a plurality of shells 1 arranged at equal distances. Installing the shell 1 on the upper surface of the installation shell 8 realizes the positioning and installation effect of the installation shell 8. The inner wall of each shell 1 is slidably connected with a clamping block 3 and a connecting block 4. The clamping block 3 and the connecting block 4 are placed inside the shell 1, and both the clamping block 3 and the connecting block 4 are set to be slidably connected with the corresponding shell 1. The limiting effect on the clamping block 3 and the connecting block 4 is realized through the contour of the inner wall of the shell 1.

[0023] Combined with Figure 3 and Figure 4 , one side of each clamping block 3 away from each other is fixedly connected to one side of the corresponding connecting block 4 close to each other. Connecting the clamping block 3 with the corresponding connecting block 4, through their fixed connection, realizes the synchronism when the clamping block 3 and the connecting block 4 move. One side of each connecting block 4 away from each other is fixedly connected with two connecting rods 5 and two springs 7. Installing the connecting rods 5 and the springs 7 on the side of the corresponding connecting block 4 away from each other realizes the positioning and installation effect of the connecting rods 5 and the springs 7.

[0024] In this embodiment, pull rods 6 are provided on both the front and back of the installation shell 8. The pull rods 6 are placed on the front and back of the installation shell 8. One side of each pull rod 6 close to each other is fixedly connected to the other ends of the corresponding connecting rods 5 and springs 7, and the other ends of the corresponding connecting rods 5 and springs 7 are connected to the corresponding pull rods 6, realizing the limiting effect on the other ends of the connecting rods 5 and springs 7. By moving the pull rod 6, the movement of the connecting block 4 can be realized. Through the connecting block 4, the movement effect of the clamping block 3 can be realized, and installing the spring 7 facilitates the reset of the clamping block 3.

[0025] Looking back Figure 3 , two sliding grooves 12 are opened on the inner wall of the installation shell 8. Through the inner wall of the installation shell 8, the positioning effect of the sliding grooves 12 is realized. The outer surface of the battery shell 9 is in sliding contact with the inner wall of the installation shell 8. The battery shell 9 is adapted to the inner wall of the installation shell 8. When the battery shell 9 descends, the bottom surface of the battery shell 9 contacts the corresponding clamping block 3. Through the inclined surface on the surface of the clamping block 3, at this time, the clamping block 3 drives the connecting block 4 to move, thereby driving the spring 7 to be compressed. When the battery shell 9 is installed in place, the spring 7 realizes the reset of the clamping block 3, thereby realizing the quick installation effect of the battery shell 9.

[0026] In this embodiment, a sliding block 13 is slidably connected to the inner wall of each sliding groove 12. The sliding block 13 is placed inside the corresponding sliding groove 12 and is set to be slidably connected therebetween. The profile of the sliding groove 12 is used to limit the sliding block 13. One side of each sliding block 13 close to each other is fixedly connected to the left side surface and the right side surface of the battery case 9. The sliding block 13 is connected to the left side surface and the right side surface of the corresponding battery case 9. By limiting the sliding block 13, the battery case 9 is limited.

[0027] In a preferred embodiment, a battery pack 10 arranged at equal intervals is installed on the inner wall of the battery case 9. The battery pack 10 is installed on the inner wall of the battery case 9. Through the connection between the battery pack 10 and the battery case 9, the assembly of the battery is realized. Two handles 11 are fixedly connected to the upper surface of the battery case 9. The handles 11 are installed on the upper surface of the battery case 9 to realize the positioning and installation effect of the handles 11. The battery case 9 can be conveniently moved through the handles 11, improving the convenience.

[0028] In this embodiment, a sleeve one 14 is fixedly connected to the front and back surfaces of the mounting case 8. The sleeve one 14 is mounted on the front and back surfaces of the mounting case 8 to realize the positioning effect of the sleeve one 14. A sleeve two 15 is slidably connected to the inner wall of each sleeve one 14. The sleeve two 15 is placed inside the corresponding sleeve one 14 and is set to be slidably connected therebetween. A damping ring is installed on the surface of the sleeve two 15. Through the connection between the sleeve one 14, the sleeve two 15 and the damping ring, the sleeve two 15 can have a certain buffering effect.

[0029] In a preferred embodiment, a vertical rod 16 is fixedly connected to the outer surface of each sleeve two 15. The vertical rod 16 is installed on the surface of the sleeve two 15 to realize the positioning effect of the vertical rod 16. The outer surface of each vertical rod 16 is fixedly connected to the outer surface of the corresponding pull rod 6. The vertical rod 16 is connected to the corresponding pull rod 6. By moving the pull rod 6, the vertical rod 16 can be moved, and then the sleeve two 15 is driven to move inside the sleeve one 14. When the pull rod 6 is reset through the damping ring, it can have a certain buffering effect.

[0030] In this embodiment, a bottom plate 17 is fixedly connected to the bottom surface of the installation shell 8. The installation bottom plate 17 is on the bottom surface of the installation shell 8, and the support effect of the installation shell 8 is realized through the bottom plate 17. A frame 18 is fixedly installed on the upper surface of the bottom plate 17. By installing the frame 18 on the surface of the bottom plate 17, the positioning of the frame 18 is realized. By placing the battery at the middle position of the bottom plate 17, the center of gravity of the whole vehicle is lowered, and the operation stability of the vehicle can be improved. Two wheel sets 2 are installed on both the front and back of the bottom plate 17. By installing the wheel sets 2, the connection between the bottom plate 17, the frame 18 and the wheel sets 2 is realized, forming the overall frame of the vehicle. After the battery is installed, the occupied dimension in the height direction is small, which is convenient for compressing the overall external dimension of the underground mining vehicle and can improve the passing performance of the vehicle.

Claims

1. An electric vehicle chassis with a quick-install device that is easy to replace, comprising a mounting shell (8) and a battery shell (9), characterized in that: The upper surface of the mounting shell (8) is fixedly connected to a shell (1) arranged at equal distances, and the inner wall of each shell (1) is slidably connected to a clamping block (3) and a connecting block (4), and the side of each clamping block (3) that is away from each other is fixedly connected to the side of the corresponding connecting block (4) that is close to each other, and the side of each connecting block (4) that is away from each other is fixedly connected to two connecting rods (5) and two springs (7). The front and back sides of the mounting shell (8) are provided with pull rods (6), and the side of each pull rod (6) that is close to each other is fixedly connected to the other end of the corresponding connecting rod (5) and the spring (7). The inner wall of the mounting shell (8) is provided with two sliding grooves (12), and the inner wall of the mounting shell (8) is in sliding contact with the outer surface of the battery shell (9), and the inner wall of each sliding groove (12) is slidably connected to a sliding block (13), and the side of each sliding block (13) that is close to each other is fixedly connected to the left side and right side of the battery shell (9).

2. The electric vehicle chassis with a quick-install device that is easy to replace according to claim 1, characterized in that: The inner wall of the battery shell (9) is equipped with battery packs (10) arranged at equal distances, and the upper surface of the battery shell (9) is fixedly connected to two handles (11).

3. The electric vehicle chassis with a quick-installation device that is easy to replace according to claim 1, characterized in that: The front and back sides of the installation shell (8) are fixedly connected with sleeve one (14), and the inner wall of each sleeve one (14) is slidably connected with sleeve two (15).

4. The electric vehicle chassis with a quick-installation device that is easy to replace according to claim 3, characterized in that: The outer surface of each sleeve (15) is fixedly connected to a vertical rod (16), and the outer surface of each vertical rod (16) is fixedly connected to the outer surface of the corresponding pull rod (6).

5. The electric vehicle chassis with a quick-installation device that is easy to replace according to claim 1, characterized in that: The bottom surface of the mounting shell (8) is fixedly connected to a bottom plate (17), the upper surface of the bottom plate (17) is fixedly mounted with a frame (18), and the front and back surfaces of the bottom plate (17) are both mounted with two wheel sets (2).