Anti-vibration structure of double-layer battery module

Abstract

The utility model discloses a double-layer battery module anti-vibration structure which comprises a box body, and a battery pack is positioned in the box body; grooves are formed in the front face and the back face of the box body, a plurality of longitudinal supporting rods are arranged in the grooves, and inclined struts are arranged between the adjacent longitudinal supporting rods. A top plate is arranged on the box body and is connected with the box body through a plurality of bolts; a bottom plate is arranged in the box body, and a plurality of anti-vibration assemblies are arranged between the bottom plate and the box body; and a connecting assembly is arranged between the upper and lower adjacent box bodies. By additionally arranging the bottom plate and the anti-vibration assembly below the bottom plate, upward conduction when the bottom of the battery module is stressed is reduced, and conduction and vibration of force can be effectively reduced, so that the battery module is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of battery modules, in particular to a double-layer battery module anti-vibration structure. Background Art

[0002] A double-layer battery module is a key component in a battery system. It is composed of multiple cells assembled in a specific manner to provide higher voltage and capacity to meet the power requirements of specific applications. Double-layer battery modules have a wide range of applications in electric vehicles, energy storage systems, electronic equipment, industrial equipment, and aerospace. For example, in electric vehicles, double-layer battery modules serve as energy storage devices, providing long-term power support for the vehicle; in energy storage systems, double-layer battery modules are used to store electrical energy and release it when needed to achieve regulation and balance of electrical energy.

[0003] A double-layer battery module is usually composed of an upper module and a lower module. The upper module is set at the upper end of the lower module, and the upper and lower modules are closely attached to each other and fixedly connected to each other by fixing connectors. The battery box of the double-layer module is relatively large and has a high center of gravity, but the fixing point is at the bottom of the box, and the height of the fixing ears is not high enough, which is not conducive to the vibration resistance of the upper structure. When used on engineering vehicles, long-term uninterrupted vibration will cause the bolts at the connection of the battery box to gradually loosen, and then there will be abnormal noise, deformation of the box, etc., which requires a vibration-resistant double-layer battery module to improve the overall structural strength and increase vibration buffering. Utility Model Content

[0004] The present invention aims to solve the above-mentioned technical problem of poor vibration resistance of the upper structure of a double-layer battery module and provides a double-layer battery module vibration-resistant structure.

[0005] To solve the above technical problems, the present invention provides a technical solution: a double-layer battery module anti-vibration structure, comprising a box body, wherein the battery pack is located inside the box body; grooves are provided on the front and back of the box body, and a plurality of longitudinal support rods are provided in each groove, and diagonal braces are provided between adjacent longitudinal support rods;

[0006] A top plate is provided on the box body, and the top plate is connected to the box body by a number of bolts;

[0007] A bottom plate is provided in the box body, and a number of anti-vibration components are provided between the bottom plate and the box body. The anti-vibration components include a crossbeam provided at the bottom of the box body, the longitudinal section of the crossbeam is U-shaped, a support frame is provided on the crossbeam, the longitudinal section of the support frame is an inverted U-shaped, and a mounting structure is provided between the support frame and the crossbeam; an I-shaped frame is provided on the support frame, a shock-absorbing pad is provided on the I-shaped frame, a mounting piece is provided on the shock-absorbing pad, and the top surface of the mounting piece is connected to the bottom plate; the side sections of the shock-absorbing pad and the mounting piece are both inverted U-shaped; corresponding assembly holes are provided on the I-shaped frame, the shock-absorbing pad, and the mounting piece;

[0008] A connecting component is provided between the upper and lower adjacent boxes, and the connecting component includes mounting strips provided on both sides of the box and near the upper and lower ends. The cross-section of the mounting strips is U-shaped and the openings are outward. Several assembly holes 2 are provided on the mounting strips and located at the upper and lower ends; a long screw is provided between the upper and lower adjacent assembly holes 2.

[0009] Furthermore, pillars are provided at the four corners of the box.

[0010] Furthermore, the box body is filled with glass fiber reinforced plastic; a buffer layer is provided on the inner side of the box body, and the buffer layer is made of negative Poisson's ratio material.

[0011] Furthermore, the four corners of the bottom plate are provided with notches capable of accommodating the columns.

[0012] Furthermore, supports are provided on both sides of the crossbeam, and the supports are connected to the bottom surface of the box body through bolts.

[0013] Furthermore, the mounting structure includes an insertion strip provided inside the support frame and near both ends, and a slot capable of accommodating the insertion strip is provided on the inner side of the beam; threaded holes capable of passing through the slots are provided on both sides of the beam, and a second threaded hole corresponding to the threaded hole is provided on the support frame, and the second threaded hole is connected to the threaded hole by a bolt.

[0014] The advantages of this utility model compared with the prior art are:

[0015] By adding a bottom plate and anti-vibration components under the bottom plate, the upward transmission of force when the bottom of the battery module is subjected to force is reduced, which can effectively reduce the conduction of force and vibration, thereby protecting the battery module;

[0016] The two layers of cabinets can be freely combined, and each layer of cabinets can be connected upwards or downwards, making it more flexible and convenient to use;

[0017] Equipped with a buffer layer and a glass fiber reinforced plastic inner layer to improve the box structure strength and buffer wear resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present utility model.

[0019] Figure 2 It is a schematic structural diagram of the anti-vibration component of the utility model.

[0020] Figure 3 It is an exploded view of the anti-vibration component of the utility model.

[0021] Figure 4 It is a schematic diagram of the structure of the connection component of the utility model.

[0022] As shown in the figure: 1. Box body, 2. Longitudinal support rod, 3. Diagonal support, 4. Column, 5. Top plate, 6. Bottom plate, 7. Beam, 8. Support frame, 9. Insert, 10. Slot, 11. Threaded hole, 12. Second threaded hole, 13. I-beam, 14. Shock-absorbing pad, 15. Mounting part, 16. Assembly hole, 17. Mounting strip, 18. Second assembly hole, 19. Long screw. DETAILED DESCRIPTION

[0023] The present invention will be described in further detail below with reference to the accompanying drawings.

[0024] Example 1, combined with the attached Figure 1 A double-layer battery module anti-vibration structure includes a box body 1, and the battery pack is located inside the box body 1; grooves are provided on the front and back of the box body 1, and a number of longitudinal support rods 2 are provided in the grooves. Diagonal braces 3 are provided between adjacent longitudinal support rods 2, and the structural strength of the outer side of the box body 1 is improved by the longitudinal support rods 2 and the diagonal braces 3; columns 4 are provided at the four corners of the box body 1 to improve the structural strength of the corners of the box body 1; the box body 1 is filled with glass fiber reinforced plastic; a buffer layer is provided on the inner side of the box body 1, and the buffer layer uses a negative Poisson's ratio material with good fatigue resistance, energy absorption and vibration resistance.

[0025] Combined with attachment Figure 1 A top plate 5 is provided on the box body 1, and the top plate 5 is connected to the box body 1 by a number of bolts; the upper end of the battery pack is installed and fixed.

[0026] Combined with attachment Figure 1-3 , a bottom plate 6 is provided in the box body 1, and a notch is provided at each corner of the bottom plate 6 to accommodate the column 4. A number of anti-vibration components are provided between the bottom plate 6 and the box body 1, and the anti-vibration component includes a crossbeam 7 provided at the bottom of the box body 1, and the longitudinal section of the crossbeam 7 is U-shaped. A support frame 8 is provided on the crossbeam 7, and the longitudinal section of the support frame 8 is an inverted U-shaped. A mounting structure is provided between the support frame 8 and the crossbeam 7; the mounting structure includes an insertion strip 9 provided in the support frame 8 and near both ends, and a slot 10 is provided on the inner side of the crossbeam 7 to accommodate the insertion strip 9; both sides of the crossbeam 7 A threaded hole 11 is provided on each side of the support frame 8 and can pass through the slot 10. A second threaded hole 12 corresponding to the threaded hole 11 is provided on the support frame 8. The second threaded hole 12 is connected to the threaded hole 11 by a bolt. An I-shaped frame 13 is provided on the support frame 8. A shock-absorbing pad 14 is provided on the I-shaped frame 13. A mounting member 15 is provided on the shock-absorbing pad 14. The top surface of the mounting member 15 is connected to the bottom plate 6. The side cross-sections of the shock-absorbing pad 14 and the mounting member 15 are both inverted U-shaped. Corresponding assembly holes 16 are provided on the I-shaped frame 13, the shock-absorbing pad 14, and the mounting member 15.

[0027] In the above structure, the base plate 6 and the mounting member 15 are rigidly connected, the I-frame 13 and the support frame 8 are rigidly connected, but the I-frame 13 and the mounting member 15 are non-rigidly connected. The shock-absorbing pad 14 plays a shock-absorbing and buffering role between the I-frame 13 and the mounting member 15, reducing the force and vibration transmission, making it difficult for vibration to be transmitted upward during use, thereby protecting the upper battery module.

[0028] Combined with attachment Figure 1 、 4 A connecting component is provided between the upper and lower adjacent boxes 1, and the connecting component includes mounting strips 17 provided on both sides of the box 1 and near the upper and lower ends. The cross-section of the mounting strips 17 is U-shaped and the opening is outward. A plurality of assembly holes 18 are provided on the mounting strips 17 and located at the upper and lower ends; a long screw 19 is provided between the upper and lower adjacent assembly holes 18; through the above structure, the two layers of box 1 can be freely combined, and each layer of box 1 can be connected upward or downward, which is more flexible and convenient to use.

[0029] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A double-layer battery module anti-vibration structure, comprising a box (1), wherein a battery pack is located inside the box (1); characterized in that: The box body (1) is provided with grooves on the front and back sides, a plurality of longitudinal support rods (2) are provided in the grooves, and diagonal braces (3) are provided between adjacent longitudinal support rods (2); A top plate (5) is provided on the box body (1), and the top plate (5) is connected to the box body (1) via a plurality of bolts; A bottom plate (6) is provided in the box body (1), and a plurality of anti-vibration components are provided between the bottom plate (6) and the box body (1), and the anti-vibration components include a crossbeam (7) provided at the bottom of the box body (1), the crossbeam (7) having a U-shaped longitudinal section, a support frame (8) provided on the crossbeam (7), the support frame (8) having an inverted U-shaped longitudinal section, and a mounting structure provided between the support frame (8) and the crossbeam (7); an I-shaped frame (13) is provided on the support frame (8), a shock-absorbing pad (14) is provided on the I-shaped frame (13), a mounting member (15) is provided on the shock-absorbing pad (14), and the top surface of the mounting member (15) is connected to the bottom plate (6); the side sections of the shock-absorbing pad (14) and the mounting member (15) are both inverted U-shaped; and corresponding assembly holes (16) are provided on the I-shaped frame (13), the shock-absorbing pad (14), and the mounting member (15); A connecting assembly is provided between upper and lower adjacent boxes (1), the connecting assembly comprising mounting bars (17) provided on both sides of the box (1) and near the upper and lower ends, the mounting bars (17) having a U-shaped cross section and opening outward, a plurality of second assembly holes (18) provided on the mounting bars (17) and located at the upper and lower ends; and a long screw (19) is provided between the upper and lower adjacent second assembly holes (18).

2. The double-layer battery module anti-vibration structure according to claim 1, characterized in that: Four corners of the box body (1) are each provided with upright posts (4).

3. The double-layer battery module anti-vibration structure according to claim 1, characterized in that: The box body (1) is filled with glass fiber reinforced plastic; the inner side surface of the box body (1) is provided with a buffer layer, and the buffer layer is made of negative Poisson's ratio material.

4. The double-layer battery module anti-vibration structure according to claim 1 or 2, characterized in that: The four corners of the bottom plate (6) are each provided with a notch capable of accommodating the column (4).

5. The double-layer battery module anti-vibration structure according to claim 1, characterized in that: Supports are provided on both sides of the crossbeam (7), and the supports are connected to the inner bottom surface of the box body (1) through bolts.

6. The double-layer battery module anti-vibration structure according to claim 1, characterized in that: The mounting structure comprises an inserting strip (9) provided in the support frame (8) and near both ends; a slot (10) capable of accommodating the inserting strip (9) is provided on the inner side surface of the crossbeam (7); threaded holes (11) capable of passing through the slot (10) are provided on both sides of the crossbeam (7); a second threaded hole (12) corresponding to the threaded hole (11) is provided on the support frame (8); and the second threaded hole (12) and the threaded hole (11) are connected by bolts.

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