Battery rack

Abstract

A battery rack, comprising a support frame, a mounting plate and a rolling assembly (3), wherein the mounting plate is arranged on the support frame, and a plurality of communication ports are provided in the mounting plate in a penetrating manner in a first direction; and the rolling assembly (3) is detachably connected to the support frame, and the rolling assembly comprises a driving member (31) and a plurality of rolling members (32), the driving member (31) being configured to drive the rolling members (32) to move in the first direction, the rolling members (32) being capable of at least partially penetrating the communication ports, and a battery pack abutting against the rolling members (32) that protrude from a first side face, so as to be slidably mounted above the first side face. By means of providing the battery rack with the rolling assembly, the driving member can enable the rolling members to extend out of the first side face, such that an operator mounts the battery pack along the rolling members onto the first side face, thus reducing the friction loss between the battery pack and the mounting plate, prolonging the service lives of the battery pack and the mounting plate, saving on time and labor, and making mounting convenient.

Description

battery rack

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on June 14, 2024, with application number 202421366767.1. The entire contents of the above application are incorporated by reference into this application.

[0002] Technical Field

[0003] The present application relates to the field of battery technology, and in particular to a battery rack.

[0004] Background Art

[0005] With the continuous advancement of new energy technologies, battery energy storage systems have also seen rapid growth, finding widespread application in a wide range of fields, including new energy vehicles and photovoltaic energy storage. To ensure energy density, battery energy storage systems typically consist of a battery rack and multiple battery packs mounted on the rack. However, battery pack installation typically involves multiple operators working together to directly support one end of the battery pack onto a mounting plate on the rack, and then gradually pushing the entire battery pack into place.

[0006] Technical issues

[0007] The battery pack is heavy, and multiple workers are required to cooperate in pushing the battery pack to slide along the surface of the mounting plate so that the battery pack can be completely installed on the mounting plate. The labor input is high, and the wear between the battery pack and the mounting plate is large, which can easily cause damage to the battery pack, affecting product quality, wasting time and effort, and inconvenient installation.

[0008] Technical Solutions

[0009] In a first aspect, an embodiment of the present application provides a battery rack, comprising a support frame, a mounting plate and a rolling assembly, wherein the mounting plate is arranged on the support frame, and the mounting plate has a first side surface and a second side surface arranged opposite to each other along a first direction, the first side surface is arranged to install a battery pack, and a plurality of connecting ports are arranged on the mounting plate along the first direction; the rolling assembly is detachably connected to the support frame, the rolling assembly comprises a driving member and a plurality of rolling members, the driving member is arranged to drive all the rolling members to move along the first direction, the rolling member can at least partially pass through the connecting port and extend out of the first side surface, and the end of the rolling member protruding from the first side surface is connected to the battery pack.

[0010] Beneficial effects

[0011] Through the setting of the rolling assembly, the driving member can make the rolling member extend out of the first side surface, so that the operator can install the battery pack along the rolling member to the first side surface, reducing the friction loss between the battery pack and the mounting plate, and improving the service life of the battery pack and the mounting plate, saving time and effort, and facilitating installation. One operator can easily complete the installation and reduce labor costs. The driving member can shrink the rolling member to the first side surface, so that the battery pack abuts against the mounting plate, improve the installation stability of the battery pack, reduce the continuous support of the rolling member, and ensure the service life of the rolling assembly. By making the rolling assembly and the support member detachable, the reusability of the rolling assembly can be improved, and the use efficiency of the rolling assembly can be improved.

[0012] BRIEF DESCRIPTION OF THE DRAWINGS

[0013] FIG1 is a schematic structural diagram of a battery rack according to an embodiment of the present application;

[0014] FIG2 is a schematic diagram of the disassembly of a battery rack according to an embodiment of the present application;

[0015] FIG3 is a schematic structural diagram of a rolling assembly according to an embodiment of the present application;

[0016] FIG4 is a cross-sectional view of a rolling assembly according to an embodiment of the present application (in a mated state);

[0017] FIG5 is an exploded schematic diagram of a rolling assembly according to an embodiment of the present application;

[0018] FIG6 is a cross-sectional view of the rolling assembly according to an embodiment of the present application (in an exploded state).

[0019] In the picture:

[0020] 1. Support frame; 11. Placement cavity; 2. Mounting plate; 21. First side; 22. Communication port; 3. Rolling assembly; 31. Drive member; 311. Screw; 3111. Drive end; 312. Wedge block; 3121. First inclined surface; 32. Rolling member; 33. Base; 331. Accommodation cavity; 332. First through hole; 333. Second through hole; 34. Slider; 341. Limiting portion; 35. Limiting block; 351. Limiting hole; 4. Guide plate.

[0021] Modes for Carrying Out the Invention

[0022] As shown in Figures 1 and 2, the battery rack of an embodiment of the present application includes a support frame 1, a mounting plate 2 and a rolling assembly 3. The mounting plate 2 is arranged on the support frame 1, and the mounting plate 2 has a first side surface 21 and a second side surface arranged opposite to each other along a first direction (the first direction is the X direction in the figure, that is, the vertical direction). The first side surface 21 is configured to install a battery pack, and a plurality of connecting ports 22 are provided on the mounting plate 2 along the first direction; the rolling assembly 3 is detachably connected to the support frame 1, and the rolling assembly 3 includes a driving member 31 and a plurality of rolling members 32. In the installed state, the driving member 31 is configured to drive all the rolling members 32 to move along the first direction, and at least part of the rolling member 32 can extend out of the first side surface 21 through the connecting port 22. The end of the rolling member 32 protruding from the first side surface 21 is connected to the battery pack, that is, the battery pack abuts against the rolling member 32 protruding from the first side surface 21 to be slidably installed above the first side surface 21.

[0023] It will be appreciated that the support frame 1 is configured to support the battery pack, maintaining a gap between the battery pack and the ground or between the battery packs themselves to ensure safe use. In this embodiment, the battery frame is constructed from multiple square steel tubes. The rolling assembly 3 has an installed state and an initial state. In the installed state, the driving member 31 drives the rolling member 32 through the communication port 22 and extends out of the first side surface 21. In the initial state, the driving member 31 drives the rolling member 32 to fully retract below the first side surface 21, so that the battery pack abuts the first side surface 21. Through the setting of the rolling assembly 3, the driving member 31 can make the rolling member 32 extend on the first side surface 21, so that the operator can install the battery pack on the first side surface 21 along the rolling member 32, reducing the friction loss between the battery pack and the mounting plate 2, and improving the service life of the battery pack and the mounting plate 2, saving time and effort, and convenient installation. One operator can easily push the installation to reduce the investment in labor costs and avoid the situation where the operator uses brute force and is easily injured; and the driving member 31 can make the rolling member 32 shrink to the first side surface 21, so that the battery pack abuts against the mounting plate 2, thereby improving the installation stability of the battery pack, reducing the continuous support of the rolling member 32, and ensuring the service life of the rolling assembly 3; by making the rolling assembly 3 and the support member 1 detachable, the reusability of the rolling assembly 3 can be improved, and the use efficiency of the rolling assembly 3 can be improved.

[0024] The battery pack is mounted on the first side surface 21 along a third direction (the third direction is the Y direction in the figure). At least two rolling assemblies 3 are spaced apart on the support frame 1 along a second direction (the second direction is the Z direction in the figure). Each rolling assembly 3 includes a plurality of rolling elements 32 spaced apart along the third direction. The first, second, and third directions are arranged at an angle to each other. In this embodiment, two sets of rolling assemblies 3 are spaced apart on the support frame 1 along the second direction, with each set of rolling assemblies 3 adjacent to either side of the mounting plate 2 along the third direction to ensure balanced movement of the battery pack when it is pushed onto the mounting plate 2. Of course, to ensure the load-bearing safety of multiple rolling assemblies 3 and the stability of the battery pack, three, four, or more sets of rolling assemblies 3 may be provided.

[0025] The support frame 1 is provided with a placement cavity 11, and the length of the placement cavity 11 extends along the third direction. The support frame 1 is also provided with a mounting opening that communicates with the placement cavity 11 on one side along the third direction. The rolling assembly 3 is inserted into the placement cavity 11 through the mounting opening, and the placement cavity 11 is connected to the communication opening 22. In other words, the rolling assembly 3 is inserted into the placement cavity 11 to complete the connection between the rolling assembly 3 and the support frame 1, making assembly and disassembly convenient. In addition, the cavity wall of the placement cavity 11 adjacent to the mounting plate 2 is provided with a connecting hole corresponding to the communication opening 22, so that the rolling element 32 in the placement cavity 11 can sequentially pass through the connecting hole and the communication opening 22 and extend out of the first side surface 21.

[0026] As shown in Figures 3, 4, 5, and 6, the rolling assembly 3 also includes a base 33. The base 33 extends along the third direction. The driving member 31 and the rolling member 32 are both disposed on the base 33. The base 33 is inserted into the placement cavity 11. The outer periphery of the base 33 has at least a first anti-rotation surface. The placement cavity 11 is provided with a second anti-rotation surface corresponding to the first anti-rotation surface, and the first anti-rotation surface abuts the second anti-rotation surface. The provision of the base 33 integrates the various structures of the rolling assembly 3 onto the base 33, improving the integrity of the rolling assembly 3. That is, the installation of the entire rolling assembly 3 is completed by connecting the base 33 to the placement cavity 11.

[0027] To ensure the installation stability of the rolling assembly 3, threaded holes can be provided on the support frame 1 to allow bolts to pass through the threaded holes and abut against the base 33, or a snap-fit ​​structure can be provided to engage with the base 33. The structural arrangement of the first and second anti-rotation surfaces effectively improves the installation stability of the base 33 and prevents rotation of the base 33. In this embodiment, the placement cavity 11 is a square cavity, and the base 33 is a square block. Therefore, the restraint of the square block and the square cavity wall ensures the relative positional stability between the two, reduces the possibility of rotation, and improves the installation accuracy of the rolling assembly 3.

[0028] As shown in Figures 4, 5 and 6, the driving member 31 includes a screw 311 and a plurality of wedge blocks 312. The screw 311 is rotatably connected to the base 33. All the wedge blocks 312 are threadedly connected to the screw 311. Rotating the screw 311 allows the wedge blocks 312 to move along a first direction. The screw 311 has a driving end 3111. The wedge blocks 312 are at least partially tilted on a side adjacent to the mounting plate 2. The first inclined surface 3121 of the wedge block 312 is tilted from an end adjacent to the driving end 3111 toward a direction away from the driving end 3111 and away from the mounting plate 2. The rolling member 32 slides in cooperation with the first inclined surface 3121. In this embodiment, an operator manually turns the driving end 3111 of the screw 311 to drive the wedge block 312 to move in the third direction, thereby driving the rolling element 32 abutting the first inclined surface 3121 of the wedge block 312 to move upward along the first inclined surface 3121 and extend out of the communication port 22, or to move downward and retract within the communication port 22. Manual control is performed with precise accuracy, and the first inclined surface 3121 is used to convert the movement of the wedge block 312 in the third direction into vertical drive of the rolling element 32. Of course, in other embodiments, a motor drive can be provided at the driving end 3111 of the screw 311. In addition to utilizing the screw 311 in conjunction with the wedge block 312, the driving element 31 can also be a linear drive mechanism such as multiple pneumatic cylinders, hydraulic cylinders, or electric cylinders.

[0029] As shown in Figures 5 and 6, the base 33 is provided with a housing cavity 331, a first through hole 332 and a plurality of second through holes 333 respectively communicating with the housing cavity 331. The first through hole 332 at least passes through one side surface of the base 33 along the third direction, and the second through hole 333 passes through one side surface of the base 33 adjacent to the mounting plate 2 along the first direction. All wedge blocks 312 are slidably disposed within the housing cavity 331 along the third direction. The driving end 3111 extends out of the housing cavity 331 through the first through hole 332, and the rolling element 32 at least partially extends out of the housing cavity 331 through the second through hole 333. The provision of the housing cavity 331 allows the driving element 31 to be disposed within the housing cavity 331, thereby improving protection for the driving element 31. In the initial state, the rolling element 32 can be retracted within the housing cavity 331. Moving the base 33 enables the overall movement of the rolling assembly 3, thereby improving the overall mobility of the rolling assembly 3. Furthermore, the wedge block 312 can be guided and restricted by the cavity wall of the accommodating cavity 331 , thereby improving the movement stability of the wedge block 312 .

[0030] In this embodiment, the cross-section of the accommodating cavity 331 along the second direction is square, that is, the accommodating cavity 331 is a square chamber, and the cross-section of the wedge block 312 along the second direction is also square. By utilizing the cooperation between the square block and the square cavity wall, it is possible to avoid the synchronous rotation of the wedge block 312 when the screw 311 rotates, thereby improving the position stability of the wedge block 312. That is, by utilizing the restriction of the square cavity wall on the wedge block 312, the screw 311 drives the wedge block 312 so that it can only move along the length direction of the accommodating cavity 331, that is, the first direction.

[0031] As shown in Figures 4, 5, and 6, the rolling assembly 3 further includes a slider 34 and a stopper 35 disposed within the accommodating cavity 331. The stopper 35 is spaced from the cavity wall of the base 33 provided with the second through hole 333, and the stopper 35 is provided with a stopper hole 351 corresponding to the second through hole 333. The slider 34 slidably engages with the stopper hole 351. The rolling element 32 is rotatably connected to the end of the slider 34 away from the wedge block 312, and the slider 34 slidably engages with the first inclined surface 3121. The provision of the slider 34 facilitates the installation of the rolling element 32. When a ball bearing is used as the rolling element 32, the ball bearing can also be abutted against the first inclined surface 3121 of the wedge block 312, and the first inclined surface 3121 and the cavity wall of the accommodating cavity 331 are used to restrict the rolling movement, thereby achieving the installation of the ball bearing. By cooperating with the slider 34 and the limit block 35, the slider 34 is restricted to move only in the first direction, thereby improving the position stability of the slider 34 and the rolling element 32 on the slider 34, that is, the screw 311 is rotated, and the cavity wall of the accommodating cavity 331 restricts the wedge block 312 so that the wedge block 312 moves along the third direction. The limit block 35 restricts the slider 34 so that the slider 34 abutting against the first inclined surface 3121 of the wedge block 312 can only be transmitted along the first inclined surface 3121 to realize the vertical movement of the sliding, so that the rolling element 32 extends or retracts in the second through hole 333.

[0032] A stopper 341 is provided protruding from the outer periphery of the slider 34. The stopper 341 is disposed between the stop block 35 and the wall of the accommodating cavity 331, which is provided with the second through hole 333. The stopper 341 effectively ensures the positional stability of the slider 34, preventing the slider 34 from completely falling into the accommodating cavity 331 or falling out of the second through hole 333, thereby improving the installation stability of the slider 34 and the rolling element 32.

[0033] In addition, in order to prevent the wedge block 312 from moving in the third direction and causing the slider 34 to be out of contact with the wedge block 312, stoppers are respectively provided at both ends of the wedge block 312 facing the slider 34 and adjacent to the third direction. The stoppers are used to stop the slider 34 to limit the moving distance of the wedge block 312, thereby ensuring the matching stability between the wedge block 312 and the slider 34.

[0034] In some embodiments, the rolling element 32 is a roller, and the rotation axis of the roller extends along the second direction. The roller is rotatably mounted on the slider 34. The rotation of the roller can reduce wear between the battery pack and the roller, making the battery pack easier to push and easier to move.

[0035] In this embodiment, the rolling element 32 is a ball, which is rotatably arranged on the driving end 3111 of the driving element 31. That is, the mounting groove is recessed on the slider 34, and the ball is embedded in the mounting groove. The ball has good rolling performance, strong load-bearing capacity and wear resistance.

[0036] The spacing between two adjacent rolling elements 32 along the third direction is no greater than 300 mm. For example, the spacing between two adjacent rolling elements 32 along the third direction is 50 mm, 100 mm, 150 mm, 200 mm, 250 mm, 300 mm, etc. Excessively large spacing between two adjacent rolling elements 32 can easily cause unstable support of the battery pack, leading to collision between the battery pack and the mounting plate 2 and subsequent impact on the rolling elements 32. This spacing ensures that the two rolling elements 32 are always connected when the battery pack is pushed, ensuring smooth movement of the battery pack.

[0037] In other embodiments, the battery rack further includes a guide assembly. The battery pack is mounted on the first side surface 21 along the third direction. At least two sets of guide assemblies are spaced apart along the third direction on the mounting plate 2. Each set of guide assemblies includes two guide plates 4 spaced apart along the second direction. The two guide plates 4 are each provided with a second inclined surface on a side adjacent to each other. The two second inclined surfaces are spaced apart to form a guide groove. The guide groove gradually decreases in size along the battery pack installation direction, wherein the first, second, and third directions are arranged at an angle to each other. The guide plates 4 restrain the battery pack, preventing it from sliding off the mounting plate 2. The guide groove guides the battery pack during installation, thereby improving the installation accuracy of the battery pack.

Claims

1. A battery rack, comprising: Support frame; A mounting plate, the mounting plate being disposed in the support frame, and the mounting plate having a first side surface and a second side surface disposed opposite to each other along a first direction, the first side surface being configured to mount a battery pack, and a plurality of communication ports being disposed through the mounting plate along the first direction; A rolling assembly, wherein the rolling assembly is detachably connected to the support frame, and the rolling assembly includes a driving member and a plurality of rolling members, wherein the driving member is configured to drive all of the rolling members to move along the first direction, and the rolling member is at least partially able to extend through the connecting port to extend out of the first side surface, and one end of the rolling member protruding from the first side surface is connected to the battery pack.

2. The battery rack according to claim 1, wherein: At least two rolling assemblies are arranged on the support frame at intervals along the second direction, and each rolling assembly includes a plurality of rolling elements arranged at intervals along the third direction, wherein the first direction, the second direction and the third direction are arranged at angles to each other.

3. The battery rack according to claim 2, wherein: A placement cavity is provided in the support frame, and the length of the placement cavity extends along the third direction. A mounting port communicating with the placement cavity is also provided on one side of the support frame along the third direction. The rolling assembly is inserted into the placement cavity through the mounting port, and the placement cavity is communicated with the communicating port.

4. The battery rack according to claim 3, wherein: The rolling assembly also includes a base, the length of which extends along the third direction, the driving member and the rolling member are both arranged on the base, the base is inserted into the placement cavity, the outer peripheral side of the base has at least a first anti-rotation surface, the placement cavity is provided with a second anti-rotation surface corresponding to the first anti-rotation surface, and the first anti-rotation surface abuts against the second anti-rotation surface.

5. The battery rack according to claim 4, wherein: The driving member includes a screw rod and a plurality of wedge blocks, the screw rod is rotatably connected to the base, all the wedge blocks are threadedly connected to the screw rod, and the screw rod is rotated to enable the wedge blocks to move along the third direction. The screw rod has a driving end, and the wedge blocks are at least partially inclined on a side adjacent to the mounting plate. The first inclined surface of the wedge block is inclined from an end adjacent to the driving end toward a direction away from the driving end and away from the mounting plate, and the rolling member is slidably matched with the first inclined surface.

6. The battery rack according to claim 5, wherein: The base is provided with a accommodating cavity, a first through hole and a plurality of second through holes respectively communicating with the accommodating cavity, the first through hole at least penetrates through one side surface of the base along the third direction, the second through hole penetrates through one side surface of the base adjacent to the mounting plate along the first direction, all the wedge blocks are slidably arranged in the accommodating cavity along the third direction, the driving end extends to the outside of the accommodating cavity through the first through hole, and the rolling element can at least partially extend to the outside of the accommodating cavity through the second through hole.

7. The battery rack according to claim 6, wherein: The rolling assembly also includes a slider and a limit block arranged in the accommodating cavity, the limit block is spaced apart from the cavity wall of the base provided with the second through hole, and the limit block is provided with a limit hole corresponding to the second through hole, the slider is slidably matched with the limit hole, the rolling member is rotatably connected to the slider, and the slider is slidably matched with the first inclined surface.

8. The battery rack according to claim 7, wherein: A limiting portion is protrudingly provided on the outer peripheral side of the sliding block, and the limiting portion is arranged between the limiting block and the cavity wall of the accommodating cavity provided with the second through hole.

9. The battery rack according to any one of claims 2 to 8, wherein: The rolling element is a roller, and the rotation axis of the roller extends along the second direction; or, The rolling element is a ball, which is rotatably arranged at the driving end of the driving element; or the distance between two adjacent rolling elements along the third direction is not greater than 300 mm; or the rolling element is a ball, which is rotatably arranged at the driving end of the driving element, and the distance between two adjacent balls along the third direction is not greater than 300 mm.

10. The battery rack according to any one of claims 1-8 further includes a guide assembly, the battery pack is installed on the first side along a third direction, at least two groups of the guide assemblies are arranged on the mounting plate along the third direction, each group of the guide assemblies includes two guide plates arranged along a second direction, and a second inclined surface is arranged on one side of the two guide plates adjacent to each other, and a guide groove is formed by the two second inclined surfaces, and the size of the guide groove gradually decreases along the installation direction of the battery pack.

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