Moving structure of battery material box

By using a combined design of guide rails and eccentric ball bearings in the moving structure of the battery box, the problem of tilting the material box caused by the welding process is solved, and the stable horizontal placement and movement of the material box is achieved.

CN222993359UActive Publication Date: 2025-06-17SHENZHEN RISUNG NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202421968911.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-14
Publication Date
2025-06-17
Estimated Expiration
2034-08-14

AI Technical Summary

Technical Problem

Due to welding process problems, the horizontal position of the reinforcement ribs in the oven is inconsistent, which causes the battery box to tilt, affecting the mass speed of material collection and loading.

Method used

A moving structure of a battery box is designed, including a guide rail being arranged on a reinforcement rib with a low horizontal position, and a bearing mounting frame in the first moving device is connected to the material box mounting frame through a fixed element. The first eccentric ball bearing and the second eccentric ball bearing roll along the guide groove, and the position of the material box is adjusted by eccentricity to ensure the horizontal placement of the material box.

Benefits of technology

Through the eccentricity adjustment of the eccentric ball bearing, welding errors can be compensated, the material box is in a horizontal state, and the stability and accuracy of the material box movement are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of battery baking, in particular to a moving structure of a battery material box, which comprises a material box, the guide rail is arranged on the reinforcing rib at a low horizontal position and is provided with a plane groove and a guide groove which are parallel; the bearing mounting frames of the multiple first moving devices are fixedly connected with the material box mounting frame through first fixing elements, and the material box mounting frame is fixedly connected with one side of the material box through second fixing elements; the bearing mounting frame is provided with a first mounting hole and a second mounting hole, and the third fixing element penetrates through the first mounting hole and is used for fixing the first eccentric ball bearing and the first rolling bearing to the two sides of the bearing mounting frame. The fourth fixing element penetrates through the second mounting hole and is used for fixing the second eccentric ball bearing and the second rolling bearing on the two sides of the bearing mounting frame; the first eccentric ball bearing and the second eccentric ball bearing roll along the guide groove; and the first rolling bearing and the second rolling bearing roll along the plane groove.
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Description

Technical Field

[0001] The utility model relates to the technical field of battery baking, and particularly relates to a moving structure of a battery cassette. Background Art

[0002] With the development of the electric vehicle industry, lithium-ion batteries, as the power source of the electric vehicle industry, are also widely used in the automotive industry. Therefore, the requirements for the performance of lithium-ion batteries are getting higher and higher. There are many factors affecting the performance of lithium-ion batteries, among which moisture has a crucial impact on the performance of lithium-ion batteries.

[0003] Currently, in the production and manufacturing of lithium-ion batteries, moisture control mostly uses the baking process. In the baking process, the lithium-ion batteries are placed in a battery cassette, and the battery cassette is placed in an oven. The battery is heated through the battery cassette, and the oven is evacuated to complete the removal of moisture from the lithium-ion battery. Before the baking process, the battery cassette needs to be placed in the oven. When welding the reinforcing ribs inside the oven, due to welding process problems, the horizontal position of one side of the reinforcing ribs on the opposite sides of the oven is often higher than that of the other side, resulting in the inclination of the battery cassette placed on the reinforcing ribs, which affects the quality and speed of material taking and feeding. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a moving structure of a battery cassette, aiming to solve the problem that due to welding process problems, the horizontal position of one side of the reinforcing ribs on the opposite sides of the oven is higher than that of the other side, resulting in the inclination of the battery cassette placed on the reinforcing ribs, which affects the quality and speed of material taking and feeding.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] A moving structure of a battery cassette, comprising:

[0007] A cassette;

[0008] A guide rail, arranged on the reinforcing rib with a lower horizontal position. The guide rail is provided with a flat groove and a guiding groove, and the flat groove and the guiding groove are arranged in parallel;

[0009] A plurality of first moving devices, each of the first moving devices includes: a bearing mounting frame, a cassette mounting frame, a first fixing element, a second fixing element, a third fixing element, a fourth fixing element, a first eccentric spherical bearing, a second eccentric spherical bearing, a first rolling bearing and a second rolling bearing;

[0010] The bearing mounting bracket and the cartridge mounting bracket are fixedly connected by the first fixing element, and one side of the cartridge mounting bracket and the cartridge are fixedly connected by the second fixing element;

[0011] The bearing mounting bracket is provided with a first mounting hole and a second mounting hole. The third fixing element passes through the first mounting hole to fix the first eccentric ball bearing and the first rolling bearing on both sides of the bearing mounting bracket, and the fourth fixing element passes through the second mounting hole to fix the second eccentric ball bearing and the second rolling bearing on both sides of the bearing mounting bracket; The first eccentric ball bearing and the second eccentric ball bearing roll along the guide groove; The first rolling bearing and the second rolling bearing roll along the flat groove.

[0012] Specifically, both the first eccentric ball bearing and the second eccentric ball bearing are V-shaped eccentric ball bearings, and the guide groove is a V-shaped groove.

[0013] Specifically, sealant is provided on the outer surfaces of the first eccentric ball bearing and the second eccentric ball bearing.

[0014] Specifically, both the first rolling bearing and the second rolling bearing are flat wheels.

[0015] Specifically, sealant is provided on the outer surfaces of the first rolling bearing and the second rolling bearing.

[0016] Specifically, the bearing mounting bracket includes: a first bracket and a second bracket. The first bracket and the second bracket are connected to form a V-shaped structure. The first mounting hole is provided on the first bracket, and the second mounting hole is provided on the second bracket.

[0017] Specifically, the bearing mounting bracket is provided with a third mounting hole at the connection between the first bracket and the second bracket, and the cartridge mounting bracket is provided with a fourth mounting hole. The first fixing element passes through the third mounting hole and the fourth mounting hole to fixedly connect the bearing mounting bracket and the cartridge mounting bracket.

[0018] Specifically, it further includes:

[0019] Anti-deviation element;

[0020] The bearing mounting bracket is provided with a first anti-deviation hole at the connection between the first bracket and the second bracket, and the cartridge mounting bracket is provided with a second anti-deviation hole. The anti-deviation element passes through the first anti-deviation hole and the second anti-deviation hole to prevent the bearing mounting bracket from changing its angle with the first fixing element as the axis.

[0021] Specifically, the cartridge mounting bracket is provided with a plurality of first fixing holes, and the cartridge is provided with a plurality of second fixing holes. A plurality of second fixing elements respectively pass through the plurality of first fixing holes and the plurality of second fixing holes to fixedly connect the cartridge mounting bracket and the cartridge.

[0022] Specifically, it further includes:

[0023] A plurality of second moving devices, which are arranged on one side of the cartridge opposite to the first moving device, and the second moving devices roll along the reinforcing rib with a higher horizontal position.

[0024] One kind described in the present utility model has the beneficial effects that: the guide rail is arranged on the reinforcing rib with a lower horizontal position, and the cartridge mounting bracket and the cartridge are fixedly connected through the second fixing elements, so that the moving device is installed on the cartridge. At the same time, the bearing mounting bracket in the first moving device and the cartridge mounting bracket are fixedly connected through the first fixing elements. The bearing mounting bracket is provided with a first mounting hole and a second mounting hole. The third fixing element passes through the first mounting hole to fix the first eccentric ball bearing and the first rolling bearing on both sides of the bearing mounting bracket, and the fourth fixing element passes through the second mounting hole to fix the second eccentric ball bearing and the second rolling bearing on both sides of the bearing mounting bracket. During the movement of the battery cartridge, the first eccentric ball bearing and the second eccentric ball bearing roll along the guide groove. Since there is an eccentricity between the first eccentric ball bearing and the second eccentric ball bearing, within this range, the first eccentric ball bearing and the second eccentric ball bearing can swing left and right. Therefore, when the cartridge is initially placed into the oven, the first eccentric ball bearing and the second eccentric ball bearing will play an eccentric role on the guide groove, and there will be a situation of left and right swinging. After adjustment by the left and right swinging, the first eccentric ball bearing and the second eccentric ball bearing will get stuck in the guide groove, thereby compensating for the error caused by welding the reinforcing rib and making the cartridge in a horizontal state. The first rolling bearing and the second rolling bearing roll along the plane groove, increasing the contact surface between the moving device and the guide rail, and further making the movement of the cartridge more stable. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the oven according to an embodiment of the present utility model;

[0026] Figure 2 is Figure 1 an enlarged view of;

[0027] Figure 3 is a schematic assembly structural diagram of the cartridge and the first moving device according to an embodiment of the present utility model;

[0028] Figure 4 is a schematic disassembled structural diagram of the cartridge and the first moving device according to an embodiment of the present utility model;

[0029] Figure 5It is a schematic diagram of the assembly structure of the first mobile device and the guide rail in the embodiment of the present utility model;

[0030] Figure 6 It is a schematic diagram of the structure of the first mobile device in the embodiment of the present utility model;

[0031] Figure 7 It is a schematic diagram of the disassembled structure of the first mobile device in the embodiment of the present utility model.

[0032] Description of the reference numerals:

[0033] 1. Oven; 11. Reinforcing rib; 2. Material box; 21. Second fixing hole; 3. Guide rail; 31. Flat groove; 32. Guide groove; 4. First mobile device; 41. Bearing mounting bracket; 411. First mounting hole; 412. Second mounting hole; 413. Third mounting hole; 414. First anti-deviation hole; 415. Anti-deviation element; 416. Gasket; 417. First bracket; 418. Second bracket; 42. Material box mounting bracket; 421. Fourth mounting hole; 422. First fixing hole; 43. First fixing element; 44. Second fixing element; 45. Third fixing element; 46. Fourth fixing element; 47. First eccentric spherical bearing; 48. Second eccentric spherical bearing; 49. First rolling bearing; 40. Second rolling bearing; 5. Second mobile device. Detailed implementation manners

[0034] The present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0035] As Figures 1-7As shown in the figure, an oven 1 includes multiple pairs of reinforcing ribs 11 arranged inside and multiple material boxes 2 placed on the reinforcing ribs 11. Each pair of reinforcing ribs 11 is welded to opposite sides of the oven 1. Due to welding process problems, the horizontal position of one side of each pair of reinforcing ribs 11 is higher than that of the other side. Therefore, the embodiment of the present application provides a moving structure for the battery material box 2, including: a guide rail 3 arranged on the reinforcing rib 11 with a lower horizontal position. The guide rail 3 is provided with a flat groove 31 and a guide groove 32, and the flat groove 31 and the guide groove 32 are arranged in parallel; multiple first moving devices 4, each first moving device 4 includes: a bearing mounting frame 41, a material box mounting frame 42, a first fixing element 43, a second fixing element 44, a third fixing element 45, a fourth fixing element 46, a first eccentric spherical bearing 47, a second eccentric spherical bearing 48, a first rolling bearing 49 and a second rolling bearing 40; the bearing mounting frame 41 and the material box mounting frame 42 are fixedly connected through the first fixing element 43, and the material box mounting frame 42 and one side of the material box 2 are fixedly connected through the second fixing element 44; the bearing mounting frame 41 is provided with a first mounting hole 411 and a second mounting hole 412. The third fixing element 45 passes through the first mounting hole 411 to fix the first eccentric spherical bearing 47 and the first rolling bearing 49 on both sides of the bearing mounting frame 41, and the fourth fixing element 46 passes through the second mounting hole 412 to fix the second eccentric spherical bearing 48 and the second rolling bearing 40 on both sides of the bearing mounting frame 41; the first eccentric spherical bearing 47 and the second eccentric spherical bearing 48 roll along the guide groove 32; the first rolling bearing 49 and the second rolling bearing 40 roll along the flat groove 31.

[0036] The guide rail 3 is arranged on the reinforcing rib 11 with a lower horizontal position. The cartridge mounting bracket 42 and the cartridge 2 are fixedly connected through the second fixing element 44, so that the moving device is mounted on the cartridge 2. At the same time, the bearing mounting bracket 41 in the first moving device 4 and the cartridge mounting bracket 42 are fixedly connected through the first fixing element 43. The bearing mounting bracket 41 is provided with a first mounting hole 411 and a second mounting hole 412. The third fixing element 45 passes through the first mounting hole 411 to fix the first eccentric ball bearing 47 and the first rolling bearing 49 on both sides of the bearing mounting bracket 41. The fourth fixing element 46 passes through the second mounting hole 412 to fix the second eccentric ball bearing 48 and the second rolling bearing 40 on both sides of the bearing mounting bracket 41. During the movement of the battery cartridge 2, the first eccentric ball bearing 47 and the second eccentric ball bearing 48 roll along the guide groove 32. Since there is an eccentricity between the first eccentric ball bearing 47 and the second eccentric ball bearing 48, within this range, the first eccentric ball bearing 47 and the second eccentric ball bearing 48 can sway left and right. Therefore, when the cartridge 2 is initially placed into the oven 1, the first eccentric ball bearing 47 and the second eccentric ball bearing 48 will play the role of eccentricity on the guide groove 32, and there will be a situation of swaying left and right. After adjustment by swaying left and right, the first eccentric ball bearing 47 and the second eccentric ball bearing 48 will snap into the guide groove 32, thereby compensating for the error caused during the welding of the reinforcing rib 11 and making the cartridge 2 in a horizontal state. The first rolling bearing 49 and the second rolling bearing 40 roll along the plane groove 31, increasing the contact surface between the moving device and the guide rail 3, and further making the movement of the cartridge 2 more stable.

[0037] It should be noted that in this embodiment, there are at least two first moving devices 4, and the two first moving devices 4 are respectively arranged on the same side of the cartridge 2, so that the cartridge 2 can be stably placed on the guide rail 3. In some other embodiments, the number of the first moving devices 4 can be 3, 4, 5 or more, and the specific number can be set according to actual needs.

[0038] As Figures 5-7 shown, in some embodiments, both the first eccentric ball bearing 47 and the second eccentric ball bearing 48 are V-shaped eccentric ball bearings, and the guide groove 32 is a V-shaped groove.

[0039] When the first eccentric ball bearing 47 and the second eccentric ball bearing 48 roll in the guide groove 32, they are subject to the gravity of the cartridge 2 and the acting force when the cartridge 2 is tilted, so that the V-shaped eccentric ball bearings can sway left and right and then stably press on the V-shaped groove to roll and make the cartridge 2 horizontal.

[0040] In some embodiments, the outer surfaces of the first eccentric ball bearing 47 and the second eccentric ball bearing 48 are provided with sealant.

[0041] Since the first eccentric spherical bearing 47 and the second eccentric spherical bearing 48 work inside the oven 1 and are vulnerable to steam corrosion, in order to extend the service life of the bearings, a sealant is provided on the outer surfaces of the first eccentric spherical bearing 47 and the second eccentric spherical bearing 48. At the same time, providing the sealant on the outer surfaces of the first eccentric spherical bearing 47 and the second eccentric spherical bearing 48 can also enhance the frictional force of the first eccentric spherical bearing 47 and the second eccentric spherical bearing 48 in the guide groove 32, enabling the first eccentric spherical bearing 47 and the second eccentric spherical bearing 48 to complete the eccentric adjustment more quickly.

[0042] As Figures 5-7 shown, in some embodiments, both the first rolling bearing 49 and the second rolling bearing 40 are flat wheels.

[0043] Since both the first rolling bearing 49 and the second rolling bearing 40 are flat wheels, the first rolling bearing 49 and the second rolling bearing 40 can better contact the flat groove 31, increasing the contact area between the first moving device 4 and the guide rail 3. Since the first eccentric spherical bearing 47 and the first rolling bearing 49 are fixed on both sides of the bearing mounting bracket 41, and the second eccentric spherical bearing 48 and the second rolling bearing 40 are fixed on both sides of the bearing mounting bracket 41, multiple-position fulcrums are provided for the battery cartridge 2, preventing the cartridge 2 from tilting.

[0044] Specifically, a sealant is provided on the outer surfaces of the first rolling bearing 49 and the second rolling bearing 40.

[0045] Since the first rolling bearing 49 and the second rolling bearing 40 work inside the oven 1 and are vulnerable to steam corrosion, in order to extend the service life of the first rolling bearing 49 and the second rolling bearing 40, a sealant is provided on the outer surfaces of the first rolling bearing 49 and the second rolling bearing 40. At the same time, providing the sealant on the outer surfaces of the first rolling bearing 49 and the second rolling bearing 40 can also enhance the frictional force of the first rolling bearing 49 and the second rolling bearing 40 in the flat groove 31, further preventing the first rolling bearing 49 and the second rolling bearing 40 from disengaging from the flat groove 31.

[0046] As Figure 7 shown, in some embodiments, the bearing mounting bracket 41 includes: a first bracket 417 and a second bracket 418. The first bracket 417 and the second bracket 418 are connected to form a V-shaped structure. The first mounting hole 411 is provided on the first bracket 417, and the second mounting hole 412 is provided on the second bracket 418.

[0047] The bearing mounting bracket 41 is set as a V-shaped structure formed by connecting the first bracket 417 and the second bracket 418, which can prevent the bottom of the battery cartridge 2 from contacting the guide rail 3. At the same time, compared with the strip-shaped structure, the V-shaped structure can also improve the structural strength of the bearing mounting bracket 41. The first mounting hole 411 is arranged on the first bracket 417, and the second mounting hole 412 is arranged on the second bracket 418 to form a symmetrical structure, making the first eccentric ball bearing 47, the second eccentric ball bearing 48, the first rolling bearing 49 and the second rolling bearing 40 mounted on the bearing mounting bracket 41 more stable during movement.

[0048] As Figure 7 shown, in some embodiments, the bearing mounting bracket 41 is provided with a third mounting hole 413 at the connection of the first bracket 417 and the second bracket 418, the cartridge mounting bracket 42 is provided with a fourth mounting hole 421, and the first fixing element 43 passes through the third mounting hole 413 and the fourth mounting hole 421 to fixedly connect the bearing mounting bracket 41 and the cartridge mounting bracket 42.

[0049] To ensure the balance of the force on the bearing mounting bracket 41, the bearing mounting bracket 41 is provided with a third mounting hole 413 at the connection of the first bracket 417 and the second bracket 418, the cartridge mounting bracket 42 is provided with a fourth mounting hole 421, and the first fixing element 43 passes through the third mounting hole 413 and the fourth mounting hole 421 to fixedly connect the bearing mounting bracket 41 and the cartridge mounting bracket 42, so that the force application points of the bearing mounting bracket 41, namely the first mounting hole 411, the second mounting hole 412 and the third mounting hole 413, form a stable triangular structure.

[0050] It should be noted that the first fixing element 43, the second fixing element 44, the third fixing element 45 and the fourth fixing element 46 can all be set screws and lock nuts, and a gasket 416 is further arranged between the first fixing element 43 and the bearing mounting bracket 41.

[0051] As Figure 6 and Figure 7 shown, in some embodiments, the first moving device 4 further includes:

[0052] an anti-deviation element 415;

[0053] The bearing mounting bracket 41 is provided with a first anti-deviation hole 414 at the connection of the first bracket 417 and the second bracket 418, the cartridge mounting bracket 42 is provided with a second anti-deviation hole, and the anti-deviation element 415 passes through the first anti-deviation hole 414 and the second anti-deviation hole to prevent the bearing mounting bracket 41 from changing its angle with the first fixing element 43 as the axis.

[0054] Since the bearing mounting bracket 41 and the cartridge mounting bracket 42 are fixedly connected only by the first fixing element 43, the following situation exists. When the bearing mounting bracket 41 is subjected to unbalanced forces, it will change its angle with the first fixing element 43 as the axis, resulting in the first eccentric ball bearing 47 and the first rolling bearing 49, or the second eccentric ball bearing 48 and the second rolling bearing 40 disengaging from the guide rail 3. Therefore, the bearing mounting bracket 41 is provided with a first anti-deviation hole 414 at the connection between the first bracket 417 and the second bracket 418, and the cartridge mounting bracket 42 is provided with a second anti-deviation hole. The anti-deviation element 415 passes through the first anti-deviation hole 414 and the second anti-deviation hole, thereby restricting the angular change of the bearing mounting bracket 41 with the first fixing element 43 as the axis.

[0055] It should be noted that the anti-deviation element 415 can be a socket head cap screw and a lock nut.

[0056] Such as Figure 4 、 Figure 6 、 Figure 7 As shown, in some embodiments, the cartridge mounting bracket 42 is provided with a plurality of first fixing holes 422, and the cartridge 2 is provided with a plurality of second fixing holes 21. A plurality of second fixing elements 44 correspondingly pass through the plurality of first fixing holes 422 and the plurality of second fixing holes 21 to fixedly connect the cartridge mounting bracket 42 and the cartridge 2.

[0057] By a plurality of second fixing elements 44 correspondingly passing through the plurality of first fixing holes 422 provided in the cartridge mounting bracket 42 and the plurality of second fixing holes 21 provided in the cartridge 2, not only can the cartridge mounting bracket 42 and the cartridge 2 be fixedly connected, but also the rotation of the cartridge mounting bracket 42 can be restricted.

[0058] Specifically, the moving structure of the battery cartridge 2 further includes:

[0059] A plurality of second moving devices 5 are arranged on the side of the cartridge 2 opposite to the first moving device 4, and the second moving devices 5 roll along the stiffener 11 with a higher horizontal position.

[0060] The second moving devices 5 cooperate with the first moving devices 4, so that the cartridge 2 can move on the stiffener 11. The structure of the second moving devices 5 is the same as that of the first moving devices 4. The only difference is that all the bearings of the second moving devices 5 use rolling bearings.

[0061] The above are only preferred embodiments of the present invention, and do not impose any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A mobile structure for a battery material box, characterized in that: include: Material box; A guide rail is arranged on a reinforcing rib at a low horizontal position, wherein the guide rail is provided with a plane groove and a guide groove, and the plane groove and the guide groove are arranged in parallel; A plurality of first moving devices, each of which comprises: a bearing mounting frame, a material box mounting frame, a first fixing element, a second fixing element, a third fixing element, a fourth fixing element, a first eccentric ball bearing, a second eccentric ball bearing, a first rolling bearing and a second rolling bearing; The bearing mounting frame is fixedly connected to the material box mounting frame via the first fixing element, and the material box mounting frame is fixedly connected to one side of the material box via the second fixing element; The bearing mounting frame is provided with a first mounting hole and a second mounting hole, the third fixing element passes through the first mounting hole to fix the first eccentric ball bearing and the first rolling bearing on both sides of the bearing mounting frame, and the fourth fixing element passes through the second mounting hole to fix the second eccentric ball bearing and the second rolling bearing on both sides of the bearing mounting frame; the first eccentric ball bearing and the second eccentric ball bearing roll along the guide groove; the first rolling bearing and the second rolling bearing roll along the plane groove.

2. The moving structure of the battery material box according to claim 1, characterized in that: The first eccentric ball bearing and the second eccentric ball bearing are both V-shaped eccentric ball bearings, and the guide groove is a V-shaped groove.

3. The moving structure of the battery material box according to claim 1, characterized in that: The surfaces of the first eccentric ball bearing and the second eccentric ball bearing are provided with sealant.

4. The moving structure of the battery material box according to claim 1, characterized in that: The first rolling bearing and the second rolling bearing are both plane wheels.

5. The moving structure of the battery material box according to claim 1, characterized in that: The surfaces of the first rolling bearing and the second rolling bearing are provided with sealant.

6. The moving structure of the battery material box according to claim 1, characterized in that: The bearing mounting frame includes: a first bracket and a second bracket, the first bracket and the second bracket are connected to form a V-shaped structure, the first mounting hole is arranged in the first bracket, and the second mounting hole is arranged in the second bracket.

7. The moving structure of the battery material box according to claim 6, characterized in that: The bearing mounting frame is provided with a third mounting hole at the connection between the first bracket and the second bracket, the material box mounting frame is provided with a fourth mounting hole, and the first fixing element passes through the third mounting hole and the fourth mounting hole to fix the bearing mounting frame to the material box mounting frame.

8. The moving structure of the battery material box according to claim 7, characterized in that: Also includes: Anti-deflection element; The bearing mounting frame is provided with a first anti-bias hole at the connection between the first bracket and the second bracket, and the material box mounting frame is provided with a second anti-bias hole. The anti-bias element passes through the first anti-bias hole and the second anti-bias hole to prevent the bearing mounting frame from changing its angle with the first fixing element as the axis.

9. The moving structure of the battery material box according to claim 1, characterized in that: The material box mounting frame is provided with a plurality of first fixing holes, the material box is provided with a plurality of second fixing holes, and a plurality of second fixing elements pass through the plurality of first fixing holes and the plurality of second fixing holes correspondingly for fixing the material box mounting frame to the material box.

10. The moving structure of the battery material box according to claim 1, characterized in that: Also includes: A plurality of second moving devices are arranged on a side of the material box opposite to the first moving device, and the second moving devices roll along the reinforcing ribs with a high horizontal position.