Battery box and energy storage device

Abstract

The utility model relates to a battery box and an energy storage device, and relates to the technical field of new energy batteries. The utility model provides a battery box. The battery box comprises a box body, a bracket and a buffer piece, at least one limiting block is arranged on two sides of the box body; the two sides of the box body are connected with a bracket in a limiting mode, the bracket comprises a supporting beam and a supporting plate which are connected, the supporting plate is supported at the bottom of the box body, the supporting beam abuts against the side wall of the box body, at least one limiting plate is arranged on the supporting beam, and the limiting plate and the limiting block are oppositely arranged; the buffering piece abuts against the position between the limiting plate and the limiting block. The bracket with the limiting plate and the box body with the limiting block are arranged, and the limiting plate and the limiting block are arranged in a matched mode, so that the box body is limited in the vertical direction; through the arrangement of the buffer piece, the buffer piece can fill the assembling gap to enable the limiting plate and the limiting block to be completely attached, then the limiting plate can press and limit the box body through the limiting block, the box body is prevented from jumping in the vertical direction, and meanwhile the buffer piece can conduct elastic buffer protection on the box body.

Description

Technical Field

[0001] This utility model relates to the field of new energy battery technology, and more specifically, to a battery box and energy storage device. Background Technology

[0002] Current energy storage systems mainly exist in the form of integrated energy storage cabinets and energy storage containers. These cabinets or containers integrate battery packs, PCS (Power Control System), thermal management systems, and fire protection systems. These cabinets or containers typically require long-distance transportation from the manufacturing plant to the project site. Therefore, the system may be subjected to prolonged vibration and impact during transportation. If the components within the system are not securely fixed, damage may occur.

[0003] Among them, the battery pack is the most critical component of the energy storage system and also the heaviest component. Therefore, the secure fixing of the battery pack is particularly important. If the battery pack is not securely fixed, it may cause damage to the battery pack, and the vibration and impact of the battery pack may also damage the entire system structure.

[0004] The inventors discovered that current methods of securing battery packs cannot completely restrain them, especially in the vertical direction. Vibrations or impacts can cause the battery packs to bounce vertically. During long-distance road transport, prolonged vibrations and impacts can significantly damage the battery packs or the enclosure, thus affecting the performance and lifespan of the entire energy storage system. Utility Model Content

[0005] The purpose of this invention is to provide a battery box and energy storage device that can prevent the box from jumping in the vertical direction.

[0006] The embodiments of this utility model can be implemented as follows:

[0007] In a first aspect, the present invention provides a battery box, including a box body, a bracket, and a buffer; at least one limiting block is provided on both sides of the box body; the bracket is connected to the two sides of the box body, the bracket includes a connected support beam and a support plate, the support plate is supported on the bottom of the box body, the support beam abuts against the side wall of the box body, at least one limiting plate is provided on the support beam, and the limiting plate is disposed opposite to the limiting block; the buffer abuts between the limiting plate and the limiting block.

[0008] Optionally, the limiting plate includes a first plate and a second plate connected to each other. The first plate is parallel to the support beam, and the second plate is set at a first angle to the first plate. The second plate faces the tail end of the support plate, and the first angle ranges from 145° to 165°.

[0009] The limiting block is provided with a first inclined surface, and the buffer abuts between the first inclined surface and the second plate.

[0010] Optionally, multiple limiting blocks are provided, and the multiple limiting blocks are set at the same height, and the distance between the first plate body of the multiple limiting plates and the support plate is equal.

[0011] Optionally, multiple limiting blocks are provided, and the multiple limiting blocks are set at different heights. The distance between the multiple first plates and the tray increases sequentially from the tail end to the front end of the tray.

[0012] Optionally, the bracket further includes a tail end limiting part, which is disposed at the tail end of the tray and connected to the tray, and the tail end limiting part is limitedly connected to the box body.

[0013] Optionally, the tail end limiting part includes a first limiting part and a second limiting part connected to each other. The first limiting part is perpendicularly arranged and connected to the tray, and the second limiting part is arranged at a second included angle with the first limiting part.

[0014] Optionally, the lower end of the housing is provided with a slot with a second inclined surface, and the second inclined surface of the slot is engaged with the second limiting part of the tail end limiting part.

[0015] Optionally, a buffer is provided between the second inclined surface and the second limiting part.

[0016] Optionally, the bracket further includes a front end connector and a plurality of support seats, the plurality of support seats being fixed to the bottom of the tray;

[0017] The front-end connecting part is located at the front end of the tray. One end of the front-end connecting part is detachably connected to the bracket, and the other end is detachably connected to the lower box of the box.

[0018] Secondly, this utility model also proposes an energy storage device, including the battery box and cabinet described in any of the above claims, wherein the bracket is connected to the cabinet.

[0019] The beneficial effects of the battery box and energy storage device provided in this embodiment of the present invention include:

[0020] This battery box and energy storage device are equipped with a bracket with a limiting plate and a box body with a limiting block. The limiting plate and the limiting block are designed to limit the vertical movement of the box body. By incorporating a buffer, the buffer can fill the assembly gaps, allowing the limiting plate and the limiting block to fit tightly together. This enables the limiting plate to press and limit the box body through the limiting block, preventing the box body from jumping in the vertical direction. At the same time, the buffer can also provide elastic cushioning protection for the box body. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the battery box provided in this embodiment;

[0023] Figure 2 This is a schematic diagram of the structure of the box provided in this embodiment;

[0024] Figure 3 This is a schematic diagram of the bracket provided in this embodiment;

[0025] Figure 4 This is a partial cross-sectional view of the battery box provided in this embodiment;

[0026] Figure 5 for Figure 4 A partial schematic diagram of A in the middle;

[0027] Figure 6 This is a partial schematic diagram of the battery box and bracket assembly provided in this embodiment.

[0028] Icons: 010-Battery box; 100-Box body; 110-Upper box body; 120-Lower box body; 121-Card slot; 130-Panel; 140-Limiting block; 141-First limiting block; 142-Second limiting block; 143-Third limiting block; 200-Bracket; 210-Bearing beam; 220-Panel; 230-Tail limiting part; 231-First limiting part; 232-Second limiting part; 240-Front end connecting part; 250-Support base; 260-Limiting plate; 261-First plate body; 262-Second plate body; 263-First limiting plate; 264-Second limiting plate; 265-Third limiting plate; 300-Buffer component. Detailed Implementation

[0029] In related technologies, the battery pack is the most critical component of the energy storage system and also the heaviest component. Therefore, the secure fixing of the battery pack is particularly important. If the battery pack is not securely fixed, it may cause damage to the battery pack, and the vibration and impact of the battery pack may also damage the entire system structure.

[0030] Currently, the conventional method for securing battery packs involves using a limiting plate on the upper side wall of the bracket to vertically limit the lower frame of the battery box. Due to assembly and manufacturing tolerances, a 3-8mm assembly gap is typically maintained between the limiting plate and the battery pack body.

[0031] The inventors discovered that current battery pack securing methods, due to the need to allow for assembly gaps, cannot completely secure the battery pack, especially in the vertical direction. This means that the battery pack may experience vertical movement during vibration or impact. When transporting battery packs over long distances by road, prolonged vibration and impact can significantly damage the battery pack or its enclosure, thereby affecting the performance and lifespan of the entire energy storage system.

[0032] To address the aforementioned problems, this utility model provides a battery box 010 that can prevent the box body 100 from jumping in the vertical direction, thereby improving the above-mentioned problems.

[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0037] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.

[0038] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0039] The following describes in detail the overall structure, working principle, and technical effects of the battery box 010 and energy storage device provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0040] This embodiment provides an energy storage device, including a battery box 010 and a cabinet, with a bracket 200 connected to the cabinet.

[0041] In this embodiment, the energy storage device can be an energy storage container, which can carry multiple battery boxes 010 and may also be equipped with other additional components to facilitate the management or control of the internal environment of the energy storage container.

[0042] In this embodiment, the energy storage device includes a cabinet; the structure of the cabinet can be selected according to the installation location and size of the energy storage device.

[0043] In this embodiment, the energy storage device includes a battery box 010.

[0044] Please refer to Figure 1 The present invention proposes a battery box 010, including a box body 100, a bracket 200, and a buffer 300; at least one limiting block 140 is provided on both sides of the box body 100; the bracket 200 is connected to the limiting blocks on both sides of the box body 100, the bracket 200 includes a supporting beam 210 and a supporting plate 220 connected to each other, the supporting plate 220 is supported on the bottom of the box body 100, the supporting beam 210 abuts against the side wall of the box body 100, at least one limiting plate 260 is provided on the supporting beam 210, and the limiting plate 260 is arranged opposite to the limiting block 140; the buffer 300 abuts between the limiting plate 260 and the limiting block 140.

[0045] Understandably, by setting a bracket 200 with a limiting plate 260 and a box 100 with a limiting block 140, the limiting plate 260 and the limiting block 140 are configured to limit the box 100 in the vertical direction. Considering assembly and manufacturing tolerances, the assembly gap between the limiting plate 260 of the bracket 200 and the limiting block 140 of the box 100 is usually filled by a buffer 300. The buffer 300 can fill the assembly gap so that the limiting plate 260 and the limiting block 140 can be completely tightly attached. This allows the limiting plate 260 to press and limit the box 100 through the limiting block 140, while the buffer 300 can also provide elastic cushioning protection for the box 100.

[0046] In this embodiment, the battery box 010 includes a box body 100.

[0047] In this embodiment, please refer to Figure 2 The housing 100 includes a detachably connected upper housing 110 and a lower housing 120. The upper housing 110 is a rectangular housing structure with an open end on one side. The upper housing 110 and the lower housing 120 are connected and fixed by a connector to form a cavity for accommodating the battery module. One end of the upper housing 110 has an opening, and a panel 130 is fixed at the opening by a connector.

[0048] In this embodiment, the edge of the upper housing 110 is fixed to the perimeter of the lower housing 120, and multiple limiting blocks 140 are symmetrically arranged on both sides of the lower housing 120. The limiting block 140 is provided with a first inclined surface, which is parallel to the second body of the limiting plate 260, so that the buffer 300 can abut between the first inclined surface and the second plate 262.

[0049] It is worth mentioning that, depending on the length of the housing 100, different numbers of limit blocks 140 can be set. The positions of the limit blocks 140 can be evenly distributed, or they can be set at positions with large vibration displacements according to the results of finite element analysis. They can be flexibly arranged according to requirements.

[0050] In this embodiment, please refer to Figure 4 Multiple limiting blocks 140 are arranged at unequal heights; wherein, the height of the multiple limiting blocks 140 gradually increases along a first direction of the lower housing 120, the first direction being from the end away from the panel 130 to the end closer to the panel 130. For example, in this embodiment, the limiting block 140 includes a first limiting block 141, a second limiting block 142, and a third limiting block 143; the first limiting block 141 is disposed on the lower housing 120 at the end away from the panel 130, and the height of the first limiting block 141 is h1; the second limiting block 142 is disposed between the first limiting block 141 and the third limiting block 143, and the height of the second limiting block 142 is h2; the third limiting block 143 is disposed on the lower housing 120 at the end closer to the panel 130, and the height of the third limiting block 143 is h3; wherein, h1 < h2 < h3.

[0051] It is understandable that when there are multiple limiting blocks 140 on both sides of the battery box 010, the multiple limiting blocks 140 are arranged in a stepped manner in terms of height, which can avoid front-to-back interference or inaccurate matching when the battery box 010 and the bracket 200 are installed.

[0052] In some alternative embodiments, multiple limit blocks 140 may be set at the same height; alternatively, only one limit block 140 may be set.

[0053] In this embodiment, please refer to Figure 5The lower box 120 of the box 100 is provided with a slot 121 with a second inclined surface at the tail end. The second inclined surface of the slot 121 is connected to the second limiting part 232 of the tail end limiting part 230.

[0054] In this embodiment, the battery box 010 includes a bracket 200.

[0055] In this embodiment, please refer to Figure 1 Two brackets 200 are respectively set at a distance from the width of the box 100 and fixed on the cabinet. The two sides of the battery box 010 are respectively pushed into the two brackets 200 and fixed by the connector, thereby realizing the fixation and limiting of the battery box 010 by the brackets 200.

[0056] In this embodiment, please refer to Figure 3 The bracket 200 includes a connected support beam 210 and a support plate 220, a tail end limiting part 230, a front end connecting part 240, and multiple support seats 250. One end of the support plate 220 is the front end, and the other end of the support plate 220 is the tail end. When the battery box 010 is installed, it is installed along the front end of the support plate 220 towards the tail end.

[0057] Further, please refer to Figure 3 The support beam 210 and the support plate 220 are vertically arranged; the support plate 220 is used to support the bottom of the lower box 120 of the box 100, and the support beam 210 is used to abut against the side wall of the lower box 120 of the box 100. At least one limiting plate 260 is provided on the support beam 210, and the limiting plate 260 is arranged opposite to the limiting block 140.

[0058] Further, please refer to Figure 3 The support base 250 is a vertical structural component. One vertical end of the support base 250 is fixed to the frame via a connector, and the other end is fixed to the bottom of the tray 220. Multiple support bases 250 can be provided to increase the stability of the tray 200; for example, four, three, or two support bases 250 can be provided at the bottom of the tray 220.

[0059] Further, please refer to Figure 3 The front connecting part 240 is disposed at the front end of the tray 220. The front connecting part 240 is a connecting plate and is disposed perpendicular to the tray 220 and the bracket 200. One end of the front connecting part 240 is detachably connected to the support base 250 of the bracket 200 through a connector, and the other end is detachably connected to the lower box 120 of the box 100 through a connector.

[0060] Further, please refer to Figure 3 and Figure 5The tail end limiting part 230 is provided at the tail end of the tray 220. The tail end limiting part 230 is a connecting plate. The tail end limiting part 230 is set perpendicular to the tray 220 and the bracket 200. The bottom of the tail end limiting part 230 is connected to the tray 220, and the top of the tail end limiting part 230 is limited and connected to the second inclined surface in the groove on the lower box 120.

[0061] Optionally, the tail-end limiting part 230 includes a first limiting part 231 and a second limiting part 232 connected to each other. The first limiting part 231 is perpendicularly disposed and connected to the tray 220, and the second limiting part 232 is disposed at a second included angle B with the first limiting part 231; wherein the range of the second included angle B is 145°-165°. It can be understood that the tail-end limiting part 230 limits the tail of the box 100 in the vertical direction through the second limiting part 232 with a bending angle.

[0062] The second included angle B can be 145°, 150°, 155°, 160°...165°, etc.

[0063] It is worth mentioning that the second inclined surface of the groove, like the second limiting part 232 of the tail end limiting part 230, has a certain assembly gap. If there is a gap, it cannot effectively perform the function of pressing and limiting. Therefore, a buffer 300 is provided between the second inclined surface of the groove and the second limiting part 232 of the tail end limiting part 230 to perform the function of pressing and limiting.

[0064] In this embodiment, please refer to Figure 6 The limiting plate 260 includes a first plate 261 and a second plate 262 connected to each other. The first plate 261 is parallel to the support beam 210. The second plate 262 is set at a first angle A with the first plate 261. The second plate 262 faces the tail end of the support plate 220. The range of the first angle A is 145°-165°.

[0065] The first included angle A can be 145°, 150°, 155°, 160°...165°, etc.

[0066] In this embodiment, the number of limiting plates 260 can be specifically set according to the length of the housing 100. For example, when the length of the housing 100 of the battery box 010 is short, the number of limiting plates 260 can be reduced, and at least one limiting plate 260 can be set near the tail end of the tray 220. For example, when the length of the housing 100 of the battery box 010 is long, two, three, four, or other numbers of limiting plates 260 can be set.

[0067] In this embodiment, please refer to Figure 4The distances between the multiple limiting plates 260 and the support plate 220 are inconsistent, and the distances between the multiple first plates 261 and the support plate 220 increase sequentially from the tail end to the front end of the support plate 220. For example, in this embodiment, the limiting plate 260 includes a first limiting plate 263, a second limiting plate 264, and a third limiting plate 265; the first limiting plate 263 is disposed on the tail end of the support plate 220, and the height of the first limiting plate 263 is H1; the second limiting plate 264 is disposed between the first limiting block 141 and the third limiting plate 265, and the height of the second limiting plate 264 is H2; the third limiting plate 265 is disposed on the front end of the support plate 220, and the height of the third limiting plate 265 is H3; wherein, H1 < H2 < H3.

[0068] It is understandable that by setting limit plates 260 of different heights on the tray 220, the battery box 010 can select one or more limit plates 260 to cooperate and press and limit according to the length of the box body 100; at the same time, this setting also ensures that the front and rear limit plates do not interfere with each other.

[0069] In this embodiment, the tail end limiting part 230, the front end connecting part 240 and the multiple support seats 250 can be fixed to the support beam 210 and the support plate 220 by welding, riveting or thread locking or integral molding, so that the overall structure is relatively simple, reliable, low cost and highly operable.

[0070] In this embodiment, the battery box 010 includes a buffer 300.

[0071] Among them, the buffer 300 can be a structural component with a certain degree of elasticity, such as silicone foam, silicone rubber, EPDM or polyurethane elastomer.

[0072] Optionally, the buffer 300 can be connected to the bottom wall of the second body of the limiting plate 260; the buffer 300 can also be connected to the first inclined surface of the limiting block 140.

[0073] Understandably, please refer to Figure 6 After the box body 100 is inserted into place along the support beam 210, the fixing block on the lower box body 120 fits tightly with the limiting plate 260 on the support beam 210. The buffer 300 can fill the assembly gap so that the limiting plate 260 and the limiting block 140 can fit completely tightly, thereby allowing the limiting plate 260 to press and limit the box body 100 through the limiting block 140. This setting can prevent the lower box body 120 from jumping in the vertical direction; at the same time, the buffer 300 can also provide elastic buffer protection for the box body 100.

[0074] The working principle and process of the battery box 010 provided in this embodiment of the utility model are as follows:

[0075] The upper support beam 210 is fixed on the cabinet in sequence by the support base 250. After the lower box 120 of the box 100 is inserted into the two sides along the support beam 210, the second inclined surface of the groove at the tail of the lower box 120 is inserted and matched with the second limiting part 232 of the limiting part 230 at the tail end of the bracket 200 for limiting. At the same time, the fixing block on the lower box 120 and the limiting plate 260 on the support beam 210 fit tightly together.

[0076] When the front connecting plate is connected to lock the lower housing 120 and the bracket 200 simultaneously, a locking force is generated along the insertion direction of the housing 100, which makes the limiting block 140 and the buffer 300 on the battery pack in close contact with the limiting plate 260 on the support beam 210. The locking force will cause the limiting plate 260 to generate a reverse force, so that the housing 100 and the bracket 200 press and limit each other.

[0077] In summary, the battery box 010 and energy storage device provided in this embodiment of the present invention, by setting a bracket 200 with a limiting plate 260 and a box 100 with a limiting block 140, the limiting plate 260 and the limiting block 140 are configured to limit the box 100 in the vertical direction; by setting a buffer 300, the buffer 300 can fill the assembly gap so that the limiting plate 260 and the limiting block 140 can be completely tightly attached, so that the limiting plate 260 can press and limit the box 100 through the limiting block 140, preventing the box 100 from jumping in the vertical direction, and at the same time, the buffer 300 can also provide elastic buffer protection for the box 100.

[0078] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A battery box, characterized in that, include: The housing has at least one limiting block on each side. The bracket is connected to the two sides of the box body. The bracket includes a connected support beam and a support plate. The support plate is supported on the bottom of the box body. The support beam abuts against the side wall of the box body. At least one limiting plate is provided on the support beam. The limiting plate is arranged opposite to the limiting block. A buffer element is provided, which abuts against the limiting plate and the limiting block.

2. The battery box according to claim 1, characterized in that, The limiting plate includes a first plate and a second plate connected to each other. The first plate is parallel to the support beam, and the second plate is set at a first angle to the first plate. The second plate faces the tail end of the support plate, and the first angle ranges from 145° to 165°. The limiting block is provided with a first inclined surface, and the buffer abuts between the first inclined surface and the second plate.

3. The battery box according to claim 2, characterized in that, Multiple limiting blocks are provided, and the multiple limiting blocks are set at the same height. The distance between the first plate body of the multiple limiting plates and the support plate is equal.

4. The battery box according to claim 2, characterized in that, Multiple limiting blocks are provided, and the multiple limiting blocks are set at different heights. The distance between the multiple first plates and the tray increases sequentially from the tail end to the front end of the tray.

5. The battery box according to claim 1, characterized in that, The bracket also includes a tail end limiting part, which is disposed at the tail end of the tray and connected to the tray, and the tail end limiting part is limitedly connected to the box body.

6. The battery box according to claim 5, characterized in that, The tail end limiting part includes a first limiting part and a second limiting part connected to each other. The first limiting part is perpendicularly arranged and connected to the tray, and the second limiting part is arranged at a second included angle with the first limiting part.

7. The battery box according to claim 6, characterized in that, The lower end of the box body is provided with a slot with a second inclined surface, and the second inclined surface of the slot is connected to the second limiting part of the tail end limiting part.

8. The battery box according to claim 7, characterized in that, A buffer is provided between the second inclined surface and the second limiting part.

9. The battery box according to claim 1, characterized in that, The bracket also includes a front end connector and multiple support seats, the multiple support seats being fixed to the bottom of the tray; The front end connecting part is located at the front end of the tray. One end of the front end connecting part is detachably connected to the bracket, and the other end is detachably connected to the lower box of the box.

10. An energy storage device, characterized in that, include: The battery box and cabinet according to any one of claims 1-9, wherein the bracket is connected to the cabinet.

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