A new energy automobile battery bracket

Abstract

The utility model relates to new energy automobile battery technical field provides a new energy automobile battery bracket, including base, the base top and along the base length direction interval setting several arch type limit frame, places the battery main body between arch type limit frame and base, fixed mounting M type sheet between two adjacent arch type limit frames, sets up the connecting block below M type sheet, the connecting block fixed mounting is in the battery top, the M type groove is opened in the connecting block top, M type sheet sets up in M type shape groove, sets up the shade above M type sheet, forms W type bending cavity between M type sheet and shade, sets up two groups of ball bearings in W type bending cavity, when the battery main body moves because of horizontal inertia force, the ball bearing rolls along M type sheet and extrudes the bending cavity side wall, and M type sheet is extruded and generates radial shape after embedding in the groove by ball bearing, and the horizontal inertia force of battery main body is converted into the fitting constraint of connecting block.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle battery technology, specifically to a new energy vehicle battery bracket. Background Technology

[0002] With the booming development of the new energy vehicle industry, the safety and stability of batteries, as their core power source, are of paramount importance. As a key component that supports and fixes batteries, battery brackets play a crucial role in ensuring battery performance and vehicle safety. With the increasing requirements for the driving range of new energy vehicles, the capacity and weight of battery packs are constantly increasing, which puts forward higher requirements for the design of battery brackets.

[0003] Existing battery bracket structures for new energy vehicles are relatively simple, only suitable for installing battery packs. Vehicle vibrations can also cause the battery bracket to vibrate, resulting in the battery pack impacting the bracket. Prolonged vibration can easily damage the battery pack, causing significant economic losses. To alleviate this vibration problem, a new type of battery bracket for new energy vehicles incorporates a shock-absorbing structure beneath the main body. Vibration is transmitted to the bracket body, causing the battery pack to press down on the support plate and move downwards. This utilizes a connecting rod to compress a first spring for shock absorption, and a second spring further assists in enhancing the shock absorption effect. This eliminates the need for vertical shock absorbers, increasing the buffer space at the lower end of the bracket body and preventing shock absorption failure due to excessive vibration.

[0004] The inventors discovered that existing battery brackets for new energy vehicles can provide vertical cushioning for the entire bracket. However, under complex and varied driving conditions, such as rapid acceleration, sudden braking, and bumpy roads, the battery pack on the battery bracket is easily subjected to inertial forces, causing the battery to shift slightly horizontally within the bracket. Although this shift may seem small, long-term accumulation can lead to problems such as loose battery connections and uneven heat dissipation, thereby affecting battery performance and lifespan, and may even cause safety hazards. Utility Model Content

[0005] The purpose of this utility model is to provide a battery bracket for new energy vehicles, including a base. Several arched limiting frames are arranged at intervals above the base and along the length of the base. The battery body is placed between the arched limiting frames and the base. An M-shaped piece is fixedly installed between two adjacent arched limiting frames. A connecting block is provided below the M-shaped piece. The connecting block is fixedly installed on the top of the battery. An M-shaped groove is opened on the top of the connecting block. The M-shaped piece is movably disposed in the M-shaped groove. A cover is provided above the M-shaped piece. A W-shaped bending cavity is formed between the M-shaped piece and the cover. Two sets of ball bearings are arranged in the W-shaped bending cavity.

[0006] When the battery body moves due to horizontal inertial force, the ball rolls along the M-shaped plate and squeezes the side wall of the bending cavity. The M-shaped plate is squeezed by the ball and then embedded in the groove, converting the horizontal inertial force of the battery body into the fitting constraint force of the connecting block.

[0007] Further configured, the number of balls in the two sets of bending cavities is the same.

[0008] A further provision is made that a distance is set between the lower sidewall of the arched limiting frame and the upper sidewall of the battery body.

[0009] A further configuration is provided, wherein connecting pieces are provided at both ends of the M-shaped piece, and the ends of the connecting pieces are connected to a limiting frame.

[0010] A further setting is that the distance between the mask and the connecting piece is less than the diameter of the ball.

[0011] A further configuration is provided where raised shock-absorbing columns are provided between the base and the battery body, and the raised shock-absorbing columns are distributed in a matrix on the surface of the base.

[0012] A further configuration is that the mask is disposed on the connecting block and surrounds the periphery of the M-shaped piece.

[0013] Further configured, the shield is an annular elastic cover, and its inner wall is provided with an arc-shaped guide groove that matches the trajectory of the ball movement.

[0014] Further configured, the cross-section of the groove is dovetail-shaped, and the shape of the M-shaped piece fitting end is complementary to the groove.

[0015] A further configuration is that the battery body is positioned above the base.

[0016] The beneficial effects of one or more of the above technical solutions:

[0017] By employing a coordinated inertial mechanism between the M-shaped plate and the ball bearings, mechanical self-locking is achieved while suppressing the movement of the battery body. When the vehicle speed changes abruptly, the ball bearings are compressed by inertial force into the bending cavity of the M-shaped plate, forcing the M-shaped plate to wedge into the dovetail groove of the connecting block to form radial self-locking. Specifically, during vehicle acceleration, the rear cavity ball bearings compress the front end of the M-shaped plate, pushing the battery body to engage backward; during vehicle braking, the front cavity ball bearings compress the rear end of the M-shaped plate, pushing the battery body to engage forward. The symmetrical damping structure provides adaptive constraints for both bidirectional acceleration, preventing the battery from dislodging due to inertial impact. Through the reverse symmetrical double bending cavity design, bidirectional damping balance is achieved for acceleration and braking, thereby suppressing the movement of the battery body and buffering the horizontal vibration of the battery body. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the installation structure of the shield, M-shaped piece and connecting block of this utility model.

[0021] Figure 3 for Figure 2 A schematic diagram of the explosion structure.

[0022] In the figure: 1. Base; 2. Arched restraint frame; 21. Connecting piece; 22. M-shaped piece; 221. Bending cavity; 23. Ball bearing; 3. Battery body; 31. Connecting block; 32. Groove; 33. Cover; 34. Raised shock-absorbing column; 35. Arc-shaped guide groove. Detailed Implementation

[0023] The specific implementation of this embodiment will now be described with reference to the accompanying drawings.

[0024] Reference Figure 1 A battery holder for a new energy vehicle includes a base 1. Several arched retaining frames 2 are spaced apart above the base 1 along its length. A battery body 3 is placed between the arched retaining frames 2 and the base 1. (Refer to...) Figure 2 An M-shaped piece 22 is fixedly installed between two adjacent arched limiting frames 2. A connecting block 31 is provided below the M-shaped piece 22 and is fixedly installed on the top of the battery. (Refer to...) Figure 3 The top of the connecting block 31 has an M-shaped groove 32, the M-shaped piece 22 is movably disposed in the M-shaped groove 32, the top of the M-shaped piece 22 has a cover 33, and a W-shaped bending cavity 221 is formed between the M-shaped piece 22 and the cover 33. Two sets of balls 23 are disposed in the W-shaped bending cavity 221.

[0025] When the battery body 3 moves due to horizontal inertial force, the ball 23 rolls along the M-shaped piece 22 and squeezes the side wall of the bending cavity 221. The M-shaped piece 22 is squeezed by the ball 23 and then embedded in the groove 32, converting the horizontal inertial force of the battery body 3 into the fitting constraint force of the connecting block 31.

[0026] Reference Figure 3The number of balls 23 in the two sets of bending cavities 221 is the same. Since the opening directions of the two bending cavities are opposite and the number of balls 23 is the same, when the vehicle accelerates: the balls 23 in the rear cavity squeeze the front end of the M plate 22 and push the battery body 3 to fit backward; when the vehicle brakes: the balls 23 in the front cavity squeeze the rear end of the M plate 22 and push the battery body 3 to fit forward. The symmetrical damping structure generates adaptive constraints on both bidirectional accelerations to prevent the battery from dislodging due to inertial impact.

[0027] A distance is set between the lower side wall of the arched limiting frame 2 and the upper side wall of the battery body 3. Connecting pieces 21 are set at both ends of the M-shaped piece 22. The end of the connecting piece 21 is connected to the limiting frame. The lower side wall of the arched limiting frame 2 and the upper side wall of the battery body 3 ensure the installation space of the shield 33, the M-shaped piece 22 and the connecting block 21.

[0028] The distance between the shield 33 and the connecting piece 21 is less than the diameter of the ball 23. This distance limitation forms a physical barrier, preventing the ball 23 from detaching from the bending cavity. Geometric constraints ensure that the ball 23 always acts within the effective area of ​​the M piece 22, improving response sensitivity.

[0029] Raised damping columns 34 are provided between the base 1 and the battery body 3. The raised damping columns 34 are distributed in a matrix on the surface of the base 1. The damping columns are made of nitrile rubber. The nitrile rubber columns absorb the vertical vibration energy of the battery body 3, reducing the risk of resonance of the battery pack structure. The array distribution ensures uniform pressure transmission and avoids local stress concentration.

[0030] The shield 33 is disposed on the connecting block 31 and surrounds the M-shaped piece 22 to prevent the ball 23 from disengaging from the M-shaped piece 22.

[0031] The shield 33 is an annular elastic cover with an arc-shaped guide groove 35 on its inner wall that matches the movement trajectory of the ball 23. The cross-section of the groove 32 is dovetail-shaped, and the shape of the fitting end of the M-shaped piece 22 is complementary to that of the groove 32. The dovetail-shaped groove wall and the M-shaped piece 22 form a mechanical interlock to resist the lateral shear force generated by vehicle bumps. The complementary structure prevents the M-shaped piece 22 from coming out of the groove 32 when squeezed by the ball 23.

[0032] The specific process for suppressing horizontal inertial forces is as follows:

[0033] The battery body 3 is positioned above the base 1. When the vehicle accelerates or brakes, the base 1 tends to shift due to the vehicle's inertia, while the battery body 3 exhibits lag motion due to its mass inertia. At this time, the ball bearing 23 is driven by inertial force within the bending cavity, rolling along the bending trajectory of the M-plate 22 and pressing against the cavity wall;

[0034] The M-plate 22 is radially deformed by the pressure of the ball 23, and its mating end applies a wedging force to the side wall of the groove 32; the dovetail-shaped groove 32 and the M-plate 22 form a mechanical interlock, which converts the horizontal inertial force into the mating constraint force of the connecting block 31, thereby suppressing the displacement of the battery body 3 relative to the base 1.

[0035] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A battery holder for new energy vehicles, characterized in that, The device includes a base, and several arched limiting frames are arranged at intervals above the base along its length. The battery body is placed between the arched limiting frames and the base. An M-shaped piece is fixedly installed between two adjacent arched limiting frames. A connecting block is provided below the M-shaped piece and is fixedly installed on the top of the battery. An M-shaped groove is opened on the top of the connecting block, and the M-shaped piece is movably disposed in the M-shaped groove. A cover is provided above the M-shaped piece, and a W-shaped bending cavity is formed between the M-shaped piece and the cover. Two sets of ball bearings are arranged in the W-shaped bending cavity.

2. The new energy vehicle battery bracket according to claim 1, characterized in that, The number of balls in both sets of bending cavities is the same.

3. The new energy vehicle battery bracket according to claim 1, characterized in that, A distance is set between the lower sidewall of the arched limiting frame and the upper sidewall of the battery body.

4. The new energy vehicle battery bracket according to claim 1, characterized in that, The M-shaped piece is provided with connecting pieces at both ends, and the end of the connecting pieces is connected to a limiting frame.

5. The new energy vehicle battery bracket according to any one of claims 1 or 4, characterized in that, The distance between the shield and the connecting piece is less than the diameter of the ball.

6. The new energy vehicle battery bracket according to claim 1, characterized in that, The base and the battery body are provided with raised shock-absorbing columns, which are distributed in a matrix on the surface of the base.

7. The new energy vehicle battery bracket according to claim 1, characterized in that, The mask is mounted on the connecting block and surrounds the periphery of the M-shaped piece.

8. The new energy vehicle battery bracket according to claim 1, characterized in that, The shield is an annular elastic cover, and its inner wall is provided with an arc-shaped guide groove that matches the trajectory of the ball movement.

9. The new energy vehicle battery bracket according to claim 1, characterized in that, The groove has a dovetail-shaped cross-section, and the shape of the M-shaped piece is complementary to the groove.

10. The new energy vehicle battery bracket according to claim 1, characterized in that, The battery body is positioned above the base.

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