Battery rack

By designing a rotatable platform assembly and an adjustable assembly, the problem of high friction when pushing and pulling the battery pack into and out of the battery rack was solved, enabling convenient assembly and maintenance of the battery pack and improving the operating efficiency and safety of the energy storage system.

CN223712911UActive Publication Date: 2025-12-23EVE ENERGY STORAGE CO LTD
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Patent Information

Application Number
CN202422762884.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-12
Publication Date
2025-12-23
Estimated Expiration
2034-11-12

AI Technical Summary

Technical Problem

In existing technologies, the frictional forces are relatively large when the battery pack is pushed into and pulled out of the battery rack, which makes integration and maintenance difficult and affects the operating efficiency and convenience of the energy storage system.

Method used

A battery rack is designed, including a frame assembly, a platform assembly, and an adjustment assembly. The platform assembly is rotatably connected to the frame assembly via a first end. The adjustment assembly drives the second end of the platform assembly to rotate relative to the first end, thereby changing the tilt of the battery pack to reduce friction.

Benefits of technology

By adjusting the rotation of the components, pushing and pulling the battery pack in and out becomes easier, reducing wear and tear, and improving the safety and ease of maintenance of the battery module.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a battery rack which comprises a rack body assembly, a carrying table assembly and an adjusting assembly, the carrying table assembly comprises a first end and a second end, the carrying table assembly is rotationally connected with the rack body assembly through the first end, and the carrying table assembly is used for bearing a battery pack; the adjusting assembly is connected with the second end and the frame body assembly and used for driving the second end of the carrying table assembly to rotate relative to the first end. According to the battery rack disclosed by the utility model, when the battery pack is pushed in and pulled out, the carrying table assembly can be rotated to facilitate the movement of the battery pack, so that the battery pack is more convenient to assemble and disassemble.
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Description

TECHNICAL FIELD

[0001] The utility model relates to battery technology field especially relates to a battery rack. BACKGROUND

[0002] The efficiency and operation convenience of energy storage system integration have important practical significance, in the prior art, the mode of directly pushing the battery pack into the battery rack horizontally is generally adopted for integration, however, due to the large weight of the battery pack, the friction generated between the battery pack and the battery support during the process cannot be ignored, which not only increases the difficulty in the integration process, but also makes the battery pack difficult to smoothly enter the box, and when the battery pack is maintained or replaced subsequently, it also faces the difficulty of being easily pulled out, which seriously affects the overall operation efficiency and maintenance convenience of the energy storage system. SUMMARY

[0003] One purpose of the utility model is to provide a battery rack, which aims to solve the technical problem of laborious pushing and pulling of the battery pack.

[0004] To achieve the above purpose, the utility model provides a scheme, that is, a battery rack, the battery rack comprises a rack assembly, a loading platform assembly and an adjusting assembly: the loading platform assembly comprises a first end and a second end, the loading platform assembly is rotationally connected with the rack assembly through the first end, and the loading platform assembly is used for carrying the battery pack; the adjusting assembly is connected with the second end and the rack assembly respectively and is used for driving the second end of the loading platform assembly to rotate relative to the first end.

[0005] In some embodiments, the loading platform assembly comprises a plurality of crossbeams and a plurality of vertical rods that intersect with each other, the vertical rods are arranged above the crossbeams, and the extension direction of the vertical rods is consistent with the line direction of the first end and the second end.

[0006] In some embodiments, the vertical rod comprises a top portion and a side portion, the side portion is arranged on both sides of the top portion, the side portion is provided with a bayonet that is matched with the crossbeam, and the crossbeam is embedded into the bayonet.

[0007] In some embodiments, the loading platform assembly further comprises a heat dissipation groove, and the crossbeams and the vertical rods jointly form the heat dissipation groove.

[0008] In some embodiments, the adjusting assembly comprises an adjusting piece, a first positioning piece and a second positioning piece, one end of the adjusting piece is connected with the rack assembly through the first positioning piece, the other end of the adjusting piece is connected with the loading platform assembly through the second positioning piece, and the adjusting piece drives the first positioning piece and the second positioning piece to approach or move away.

[0009] In some embodiments, the first positioning piece comprises a first screw rod and a first nut, a first adjusting hole is formed in the rack assembly, the first screw rod is arranged through the first adjusting hole, and the first screw rod and the first nut are matched to clamp the rack assembly.

[0010] The second positioning member comprises a second screw rod and a second nut, a second adjusting hole is formed in the carrier assembly, the second screw rod passes through the second adjusting hole, and the second screw rod and the second nut clamp the carrier assembly.

[0011] In some embodiments, the first adjusting hole has a hole diameter greater than an outer diameter of the first screw rod at the rod portion, and the second adjusting hole has a hole diameter greater than an outer diameter of the second screw rod at the rod portion.

[0012] In some embodiments, the adjusting assembly comprises a cylinder and a top block, the cylinder is connected to the frame assembly, the top block is connected to an output end of the cylinder, and the top block abuts against the second end.

[0013] In some embodiments, the frame assembly comprises a plurality of first vertical columns near the first end, a plurality of second vertical columns near the second end, and a boss, and the boss is arranged on the second vertical column.

[0014] The carrier assembly further comprises a rotating beam, the rotating beam is rotationally connected to the first vertical column, and the adjusting assembly is connected to the boss.

[0015] In some embodiments, the battery rack comprises a plurality of connecting rods, the number of the carrier assemblies is a plurality, the plurality of carrier assemblies are arranged in a stacked manner on the frame assembly, and the connecting rods connect adjacent carrier assemblies.

[0016] The battery rack has the following advantages:

[0017] The battery rack comprises a frame assembly and a carrier assembly rotationally connected to the frame assembly, and further comprises an adjusting assembly for driving the carrier assembly to rotate.

[0018] In the use process of the battery rack, the adjusting assembly can be operated according to the use requirement to drive the carrier assembly to rotate relative to the frame assembly and change the inclination of the mating surface of the carrier assembly and the battery pack. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0020] Figure 1 is a schematic diagram of the overall structure of the battery rack provided by the embodiment of the present application.

[0021] Figure 2 is a schematic diagram of the application scenario of the battery rack provided by the embodiment of the present application.

[0022] Figure 3 is Figure 1 is a partial enlarged view of the A area in FIG.

[0023] Figure 4 is Figure 1 is a partial enlarged view of the B area in FIG.

[0024] Figure 5 is a schematic diagram of the cross section of the battery rack provided by the embodiment of the present application.

[0025] Figure 6 is Figure 5 is a partial enlarged view of the C area in FIG.

[0026] Figure 7 is a side view of the battery rack in the disassembled state provided by the embodiment of the present application.

[0027] Figure 8 is a schematic diagram of the application scenario of the battery rack in the disassembled state provided by the embodiment of the present application.

[0028] Figure 9 is a side view of the battery rack in the assembled state provided by the embodiment of the present application.

[0029] Figure 10 is Figure 5 is a partial enlarged view of the D area in FIG.

[0030] Figure 11 is Figure 10 is a partial enlarged view of the E area in FIG.

[0031] Figure 12 is a schematic diagram of another adjusting assembly provided by the embodiment of the present application.

[0032] Figure 13 is a schematic diagram of the overall structure of another battery rack provided by the embodiment of the present application.

[0033] Explanation of icon numbers:

[0034] 10. Frame assembly; 11. First upright; 12. Second upright; 13. Boss; 131. First adjustment hole; 20. Platform assembly; 2a. First end; 2b. Second end; 21. Crossbeam; 22. Vertical rod; 221. Top; 222. Side; 2221. Bayonet; 23. Heat dissipation groove; 24. Second adjustment hole; 25. Rotating beam; 30. Adjustment assembly; 31. Adjustment component; 32. First positioning component; 321. First screw; 322. First nut; 33. Second positioning component; 331. Second screw; 332. Second nut; 34. Cylinder; 35. Top block; 40. Battery pack; 50. Connecting rod. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figures 1 to 6 As shown, Figure 1 This is a schematic diagram of the overall structure of the battery rack provided in this embodiment of the utility model; Figure 2 This is a schematic diagram illustrating an application scenario of the battery holder provided in this embodiment of the utility model; Figure 3 yes Figure 1 A magnified view of a portion of region A in the middle; Figure 4 yes Figure 1 A magnified view of a portion of region B in the middle; Figure 5 This is a cross-sectional schematic diagram of the battery holder provided in an embodiment of the present utility model; Figure 6 yes Figure 5 A magnified view of a portion of region C.

[0037] This utility model provides a battery rack, which includes a frame assembly 10, a platform assembly 20, and an adjustment assembly 30. The platform assembly 20 includes a first end 2a and a second end 2b. The platform assembly 20 is rotatably connected to the frame assembly 10 through the first end 2a and is used to support a battery pack 40. The adjustment assembly 30 is connected to the second end 2b and the frame assembly 10 respectively and is used to drive the second end 2b of the platform assembly 20 to rotate relative to the first end 2a.

[0038] Please refer to the above as well. Figures 7 to 9 As shown, Figure 7 This is a side view of the battery holder provided in the embodiment of the present invention in the disassembled state; Figure 8It is the application scenario schematic diagram of the battery rack in the unloading state provided by the embodiment of the utility model; Figure 9 It is the side view of the battery rack in the loading state provided by the embodiment of the utility model; Figure 2 It is the application scenario of the battery rack in the loading state provided by the embodiment of the utility model.

[0039] The battery rack provided by the embodiment can be adjusted in the following three states: the unloading state, namely Figure 7 Figure 8 As shown in the figure, the first end 2a is higher than the second end 2b, the battery pack 40 receives smaller friction force when being pulled out from the first end 2a to the second end 2b, and the component force of the gravity of the battery pack 40 makes the battery pack 40 have the tendency to move from the first end 2a to the second end 2b; the working state, namely Figure 1 Figure 2 As shown in the figure, the first end 2a is equal in height to the second end 2b, the battery pack 40 does not have the tendency to move to the first end 2a or the second end 2b when being placed on the loading platform assembly 20; the loading state, namely Figure 9 Figure 10 As shown in the figure, the first end 2a is lower than the second end 2b, the battery pack 40 receives smaller friction force when being pushed in from the second end 2b to the first end 2a, and the component force of the gravity of the battery pack 40 makes the battery pack 40 have the tendency to move from the second end 2b to the first end 2a.

[0040] Compared with the fixed battery rack in the prior art, the loading platform assembly 20 of the embodiment can be adjusted according to the movement direction of the battery pack 40, so that the battery pack 40 is more labor-saving to push in and pull out, the wear of the battery pack 40 in the dismounting process is reduced, and the safety of the whole battery module is improved.

[0041] It should be noted that, in order to be clear in the embodiment and the drawings, the installation of the battery pack 40 is simplified as being placed on the loading platform assembly 20, and the movement track of the battery pack 40 is simplified as a straight line, in actual production and manufacturing, the battery pack 40 can also be hung under the loading platform assembly 20 or be penetrated by the loading platform assembly 20, and the movement track of the battery pack 40 can also be changed to adapt to the space arrangement. In addition, in order to be simple in description, the embodiment also simplifies to limit that the battery pack 40 is pushed in from the second end 2b of the loading platform assembly 20, and the working position of the battery pack 40 is arranged at the first end 2a of the loading platform assembly 20, in fact, the battery pack 40 can also be pushed in from the first end 2a of the loading platform assembly 20 and work at the second end 2b of the loading platform assembly 20, which can also achieve the technical effects of the utility model. Even, even if in some special technical solutions, the battery rack lacks one of the loading state or the unloading state, the battery rack relative to the battery rack that cannot be adjusted in the prior art also has advantages, so the protection scope of the application should not be limited by the above description of the three states. ​​​

[0042] In actual complex situations, the loading state of the battery rack should be defined as one of the adjustment states of the battery rack, which makes the battery pack 40 more easily loaded into the battery rack. Similarly, the unloading state of the battery rack should be defined as one of the adjustment states of the battery rack, which makes the battery pack 40 more easily unloaded from the battery rack.

[0043] In some embodiments, the carrier assembly 20 comprises a plurality of crossbeams 21 and a plurality of vertical rods 22 intersecting with each other, the vertical rods 22 being arranged above the crossbeams 21, and the extending direction of the vertical rods 22 being consistent with the connecting direction of the first end 2a and the second end 2b.

[0044] In the present embodiment, because the vertical rods 22 are arranged above the crossbeams 21, the pushing in and pulling out of the battery pack 40 are both borne by the vertical rods 22, and the extending direction of the vertical rods 22 is consistent with the connecting direction of the first end 2a and the second end 2b, that is, the extending direction of the vertical rods 22 is consistent with the moving direction of the battery pack 40, thus, the pushing in and pulling out of the battery pack 40 are more smooth. Moreover, the cooperation of the crossbeams 21 and the vertical rods 22 not only saves materials but also ensures the bearing strength, which is conducive to the mass production of the carrier assembly 20.

[0045] Further, the vertical rod 22 comprises a top portion 221 and a side portion 222 arranged on both sides of the top portion 221, and the side portion 222 is provided with a bayonet 2221 matched with the crossbeam 21, and the crossbeam 21 is embedded in the bayonet 2221. The arrangement of the top portion 221 ensures the smooth movement of the battery pack 40, and the arrangement of the side portion 222 and the bayonet 2221 realizes positioning by a simple method, and because the crossbeam 21 is embedded in the bayonet 2221, the overall thickness of the carrier assembly 20 is reduced, which is conducive to the integrated design of the battery module.

[0046] Still further, the carrier assembly 20 further comprises a heat dissipation groove 23, and the crossbeams 21 and the vertical rods 22 jointly form the heat dissipation groove 23. It can be imagined that for the technical solution that the carrier assembly 20 does not comprise the crossbeams 21 and the vertical rods 22, for example, the carrier assembly 20 is a cut-down plate, the skilled in the art can directly open the heat dissipation groove 23 on the plate without creative labor, and the formation of the heat dissipation groove 23 does not necessarily depend on the structure of the crossbeams 21 and the vertical rods 22.

[0047] The arrangement of the heat dissipation groove 23 exposes the part of the battery pack 40 close to the carrier assembly 20 to the air, which is conducive to the heat dissipation of the battery pack 40 and reduces the risk of thermal runaway.

[0048] Please refer to Figure 10 , Figure 10 is Figure 5 a local enlarged view of the D area in FIG. 8, showing a specific cross-sectional structure of the adjustment piece 31.

[0049] In some embodiments, the adjusting assembly 30 comprises an adjusting member 31, a first positioning member 32 and a second positioning member 33, one end of the adjusting member 31 is connected with the frame assembly 10 through the first positioning member 32, the other end of the adjusting member 31 is connected with the stage assembly 20 through the second positioning member 33, and the adjusting member 31 drives the first positioning member 32 and the second positioning member 33 to approach or move away.

[0050] Specifically, the second end 2b is connected with the second adjusting member 31, the line connecting the first end 2a, the second end 2b and the first adjusting member 31 forms a triangle, the length of the line connecting the first end 2a and the second end 2b and the length of the line connecting the first adjusting member 31 and the first end 2a are constant values, as the adjusting member 31 drives the first positioning member 32 and the second positioning member 33 to approach or move away, the included angle of the above two lines also decreases or increases accordingly, thereby realizing the adjustment of the inclination angle of the stage assembly 20.

[0051] Further, the first positioning member 32 comprises a first screw rod 321 and a first nut 322, the frame assembly 10 is provided with a first adjusting hole 131, the first screw rod 321 penetrates the first adjusting hole 131, and the first screw rod 321 clamps the frame assembly 10 in cooperation with the first nut 322; the second positioning member 33 comprises a second screw rod 331 and a second nut 332, the stage assembly 20 is provided with a second adjusting hole 24, the second screw rod 331 penetrates the second adjusting hole 24, and the second screw rod 331 clamps the stage assembly 20 in cooperation with the second nut 332, the adjusting member 31 is threadedly connected with the first screw rod 321 and the second screw rod 331 respectively, and the screw directions of the first screw rod 321 and the second screw rod 331 are opposite.

[0052] Because the screw directions of the first screw rod 321 and the second screw rod 331 are opposite, when the adjusting member 31 rotates, the first screw rod 321 and the second screw rod 331 will simultaneously approach or move away from the adjusting member 31, and only the rotation of the adjusting member 31 is needed to realize the adjustment of the angle of the stage assembly 20. Moreover, because of the large transmission ratio of the screw rod, only a small force is needed to rotate the adjusting member 31 to push the stage assembly 20 in a heavy load state to rotate.

[0053] Please refer to Figure 11 , Figure 11 is Figure 10 the enlarged view of the E area in FIG. 1, which shows the cooperation relationship between the first positioning member 32 and the first adjusting hole 131.

[0054] Further, the hole diameter of the first adjusting hole 131 is greater than the outer diameter of the rod part of the first screw rod 321, and the hole diameter of the second adjusting hole 24 is greater than the outer diameter of the rod part of the second screw rod 331.

[0055] When the carrier assembly 20 rotates relative to the frame assembly 10, the included angle between the first screw rod 321 and the carrier assembly 20 and the included angle between the second screw rod 331 and the frame assembly 10 will change accordingly, therefore, the gap fit of the first screw rod 321 and the carrier assembly 20 and the second screw rod 331 and the frame assembly 10 is beneficial to the self-adaptation of the change of the included angle, so as to avoid the cyclic stress damage of the parts after multiple adjustments. Of course, in addition to the gap fit, the flexible material or the articulated movable connection mode is also a common means of the person skilled in the art.

[0056] Please refer to Figure 12 , Figure 12 is another structural schematic view of the adjusting assembly 30 provided by the embodiment of the utility model.

[0057] In some embodiments, the adjusting assembly 30 comprises a cylinder 34 and a top block 35, the cylinder 34 is connected with the frame assembly 10, the top block 35 is connected with the output end of the cylinder 34, and the top block 35 abuts against the second end 2b.

[0058] When the cylinder 34 is elongated, the top block 35 is pushed by the cylinder 34 to make the second end 2b rise; when the cylinder 34 is shortened, the carrier assembly 20 and the battery pack 40 are compressed to make the top block 35 move downward, the second end 2b is lowered, and the state of the battery rack is switched. As can be imagined, in order to further optimize the function of the adjusting assembly 30, the above-mentioned cylinder 34 and the top block 35 and the cylinder 34 and the frame assembly 10 can be configured as articulated, and the second end 2b can be correspondingly provided with an embedded groove to realize the positioning of the top block 35.

[0059] In some embodiments, the frame assembly 10 comprises a plurality of first columns 11 close to the first end 2a and a plurality of second columns 12 close to the second end 2b and a boss 13, the boss 13 is arranged on the second column 12; the carrier assembly 20 further comprises a rotating beam 25, the rotating beam 25 is rotationally connected with the first column 11, and the adjusting assembly 30 is connected with the boss 13. Specifically, the rotating beam 25 can be a through beam penetrating through the carrier assembly 20, or a short beam arranged on both sides of the carrier assembly 20, and can realize the rotational connection of the carrier assembly 20 and the frame assembly 10.

[0060] The embodiment provides a specific battery rack structure convenient for production, the boss 13 is protruded on the second column 12, so that the adjusting assembly 30 can abut against the boss 13 instead of being connected with the second column 12 through clamping or the like, and the connection is more stable.

[0061] Please refer to Figure 13 , Figure 13 is another overall structural schematic view of the battery rack provided by the embodiment of the utility model.

[0062] In some embodiments, the battery rack comprises a plurality of connecting rods 50, the number of the platform assemblies 20 is multiple, the multiple platform assemblies 20 are arranged in layers and spaced from each other on the rack body assembly 10, and the connecting rods 50 connect the adjacent platform assemblies 20. Specifically, the connecting rods 50 are rotationally connected with the platform assemblies 20.

[0063] The rotation of the platform assembly 20 requires a certain space for giving way, and after the multiple platform assemblies 20 are arranged in layers, the space for giving way occupied by all the platform assemblies 20 is the same as the space for giving way required by a single platform assembly 20. Therefore, the arrangement of the multiple platform assemblies 20 reduces the average space for giving way required by a single platform assembly 20, that is, the space requirement is diluted, which is obviously beneficial to the integrated design of the battery module.

[0064] In addition, because the connecting rods 50 are connected with the platform assemblies 20, the rack body assembly 10, the adjacent platform assemblies 20 and the connecting rods 50 form a quadrilateral structure, and when one of the platform assemblies 20 rotates, the remaining platform assemblies 20 will rotate synchronously under the driving of the connecting rods 50, and only one adjusting assembly 30 is required to control the multiple platform assemblies 20.

[0065] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between the components in a certain specific posture, and if the specific posture changes, the directional indications will also change accordingly.

[0066] It should also be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or can have a centering element present at the same time. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or can be indirectly connected to the other element through a centering element.

[0067] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated or the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protection scope required by the present application.

[0068] The above merely describes preferred embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent structural transformation made under the design concept of the present application, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A battery holder characterized by, The utility model relates to a battery rack, including: A frame assembly; A carrier assembly including a first end and a second end, the carrier assembly is rotatably connected with the frame assembly through the first end, and the carrier assembly is used for carrying a battery pack; An adjusting assembly connected with the second end and the frame assembly respectively, used for driving the second end of the carrier assembly to rotate relative to the first end.

2. The battery holder of claim 1, wherein, The carrier assembly includes a plurality of cross beams and a plurality of vertical rods intersecting with each other, the vertical rods are arranged above the cross beams, and the extension direction of the vertical rods is consistent with the line direction of the first end and the second end.

3. The battery holder of claim 2, wherein, The vertical rod includes a top portion and side portions arranged on both sides of the top portion, the side portions are provided with sockets matched with the cross beams, and the cross beams are embedded in the sockets.

4. The battery holder of claim 3, wherein, The carrier assembly further includes a heat dissipation groove, and the cross beams and the vertical rods jointly form the heat dissipation groove.

5. The battery holder of claim 1, wherein, The adjusting assembly includes an adjusting piece, a first positioning piece and a second positioning piece, one end of the adjusting piece is connected with the frame assembly through the first positioning piece, the other end of the adjusting piece is connected with the carrier assembly through the second positioning piece, and the adjusting piece drives the first positioning piece and the second positioning piece to approach or move away.

6. The battery holder of claim 5, wherein, The first positioning piece includes a first screw rod and a first nut, the frame assembly is provided with a first adjusting hole, the first screw rod passes through the first adjusting hole, and the first screw rod and the first nut are matched to clamp the frame assembly. The second positioning piece includes a second screw rod and a second nut, the carrier assembly is provided with a second adjusting hole, the second screw rod passes through the second adjusting hole, the second screw rod and the second nut are matched to clamp the carrier assembly, the adjusting piece is threadedly matched with the first screw rod and the second screw rod respectively, and the screw directions of the first screw rod and the second screw rod are opposite.

7. The battery holder of claim 6, wherein, The hole diameter of the first adjusting hole is larger than the outer diameter of the rod portion of the first screw rod, and the hole diameter of the second adjusting hole is larger than the outer diameter of the rod portion of the second screw rod.

8. The battery holder of any one of claims 1-7, wherein, The adjusting assembly includes a cylinder and a top block, the cylinder is connected with the frame assembly, the top block is connected with the output end of the cylinder, and the top block abuts against the second end.

9. The battery holder of any one of claims 1-7, wherein, The frame assembly includes a plurality of first vertical columns close to the first end, a plurality of second vertical columns close to the second end and a boss, and the boss is arranged on the second vertical column. The carrier assembly further includes a rotating beam, the rotating beam is rotationally connected with the first vertical column, and the adjusting assembly is connected with the boss.

10. The battery holder of any one of claims 1-7, wherein, The battery rack includes a plurality of connecting rods, the number of the carrier assemblies is multiple, the plurality of carrier assemblies are arranged in layers and spaced apart from each other on the frame assembly, and the connecting rods connect adjacent carrier assemblies.