Battery rack and energy storage device

Abstract

This utility model discloses a battery rack and energy storage device. The battery rack includes a support frame, a carrier frame, and a locking element. At least two supports are spaced apart along a first direction. Two carrier frames spaced apart and opposite each other form a group. Two carrier frames in the same group are respectively mounted on two adjacent supports, and each group of carrier frames supports one battery module. Multiple groups of carrier frames are arranged spaced apart along a vertical direction on two adjacent supports. The support frame has a first side surface arranged along a second direction. The carrier frames are inclined downwards from the end away from the first side surface towards the end adjacent to the first side surface. At least one of the two carrier frames in two adjacent supports is equipped with a locking element, which can fix the battery module. The battery rack of this utility model, by tilting the carrier frames downwards, allows the battery module to slide naturally downwards along the tilted carrier frames during disassembly, saving time and effort and improving the convenience of disassembling the battery module for operators.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery rack and energy storage device. Background Technology

[0002] Energy storage, as an indispensable part of the new energy industry, is a key subsystem within the entire new energy system. Typically, large-scale energy storage systems combine individual batteries into battery modules via series and parallel connections. These modules are then connected in series and parallel on battery racks, forming clusters. Multiple clusters, combined with certain electrical equipment, constitute a complete energy storage system. However, with increasing demands for energy storage capacity, battery modules have become increasingly larger and heavier. The most direct consequence of this is that maintenance and disassembly of battery modules on the racks require multiple people to pull and lift them, making the process time-consuming, labor-intensive, and inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a battery rack and energy storage device, which has a simple structure and whose inclined support frame can guide the disassembly of the battery module, making maintenance convenient.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] In a first aspect, a battery rack is provided, comprising a bracket, a support frame, and a locking member. At least two brackets are spaced apart along a first direction. Two support frames spaced apart and opposite each other form a group. Two support frames in the same group are respectively disposed on two adjacent brackets, and each group of support frames supports a battery module. Multiple groups of support frames spaced apart along a vertical direction are disposed on two adjacent brackets. The bracket has a first side surface arranged along a second direction. The support frame is inclined downward from one end away from the first side surface toward one end adjacent to the first side surface. At least one of the two support frames of two adjacent brackets arranged opposite each other is provided with the locking member, which can fix the battery module. The first direction, the second direction, and the vertical direction are perpendicular to each other.

[0006] As a preferred embodiment of the battery rack, the support member includes a support portion and a connecting portion. The connecting portion includes a first connecting branch and a second connecting branch arranged at an angle. The first connecting branch is connected to the bracket, and the support portion is disposed on the second connecting branch. The support portion is used to support the battery module.

[0007] As a preferred embodiment of the battery holder, the support further includes a first limiting part and a second limiting part. The first limiting part is spaced apart above the support part along the vertical direction, and the second limiting part connects the first limiting part and the support part. The support part, the second limiting part and the first limiting part enclose and form a sliding groove, and part of the battery module is engaged in the sliding groove.

[0008] As a preferred embodiment of the battery holder, the support member further includes a stop portion, wherein the stop portion is provided at the end of the second limiting portion away from the first side, and the stop portion is at least partially inserted into the sliding groove; and / or,

[0009] The connecting part further includes a reinforcing rib, which is used to connect the first connecting branch and the second connecting branch.

[0010] As a preferred embodiment of the battery rack, the support frame further includes a guide rail disposed on the support portion. The guide rail has an upwardly facing support surface, and the battery module can be slidably disposed on the support surface.

[0011] As a preferred embodiment of the battery rack, the guide rail is detachably mounted on the support member; and / or,

[0012] The support frame also includes ball bearings. Multiple mounting slots are provided at intervals along the length of the guide rail on the supporting surface of the guide rail. The ball bearings are provided in the mounting slots, and the ball bearings are partially exposed at the opening of the mounting slots. The battery module is slidably connected to the ball bearings.

[0013] As a preferred embodiment of the battery holder, the locking member includes a snap-fit ​​groove that allows the protrusion on the bottom side of the battery module to engage, and the snap-fit ​​groove is located at one end of the support portion adjacent to the first side surface.

[0014] As a preferred embodiment of the battery rack, the length of the support frame extends along a third direction, and the angle θ between the third direction and the second direction satisfies: 2°≤θ≤8°.

[0015] As a preferred embodiment of the battery rack, the battery rack further includes a base and a connecting frame, all of the supports are disposed on the base, and the ends of all the supports away from the base are connected through the connecting frame.

[0016] Secondly, an energy storage device is provided, including battery modules and a battery rack as described above, wherein a plurality of battery modules are spaced apart on the battery rack.

[0017] The beneficial effects of this utility model are as follows: By tilting the support frame downwards, the battery module can slide naturally downwards along the tilted support frame during disassembly, saving time and effort and improving the convenience of disassembling the battery module for operators; in addition, the tilted support frame supporting the tilted battery module also helps to improve the smooth flow of heat generated by the battery module, reduce the accumulation of heat at the bottom of the battery module, avoid overheating problems caused by poor heat dissipation, effectively improve the heat dissipation effect of the battery frame and energy storage device, and ensure the service life of the battery module and energy storage device. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the energy storage device according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the battery holder according to an embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional view of the battery holder according to an embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the support frame structure according to an embodiment of the present utility model. Figure 1 ;

[0023] Figure 5 This is a schematic diagram of the support frame structure according to an embodiment of the present utility model. Figure 2 .

[0024] In the picture:

[0025] 100. Battery module;

[0026] 1. Bracket; 11. First side; 2. Bearing frame; 21. Support member; 211. Support part; 2111. Locking member; 212. Connecting part; 2121. First connecting support; 2122. Second connecting support; 213. First limiting part; 214. Second limiting part; 215. Slide groove; 216. Stopping part; 3. Base; 4. Connecting frame. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0031] like Figures 1 to 4As shown, the battery rack of this utility model embodiment includes a bracket 1, a support frame 2, and a locking member 2111. At least two brackets 1 are spaced apart along a first direction (the first direction is the X direction shown in the figure). Two support frames 2 spaced apart and opposite each other form a group. Two support frames 2 in the same group are respectively disposed on two adjacent brackets 1, and each group of support frames 2 supports a battery module 100. Multiple groups of support frames 2 are arranged spaced apart along a vertical direction (the vertical direction is the Z direction shown in the figure) on two adjacent brackets 1. The bracket 1 has a first side 11 arranged along a second direction (the second direction is the Y direction shown in the figure). The support frame 2 is inclined downward from the end away from the first side 11 toward the end adjacent to the first side 11. At least one of the two support frames 2 arranged opposite each other on two adjacent brackets 1 is provided with a locking member 2111, and the locking member 2111 is used to selectively fix the battery module 100. The first direction, the second direction, and the vertical direction are perpendicular to each other. During disassembly, simply separate the locking piece 2111 from the battery module 100, and the battery module 100 will slide downward along the inclined support frame 2 due to its own weight, making disassembly easier for operators.

[0032] Understandably, by tilting the support frame 2 downwards, the battery module 100 can slide naturally downwards along the tilted support frame 2 during disassembly, saving time and effort, improving the convenience of disassembling the battery module 100 for operators, reducing the pulling or dragging force on the battery module 100, and lowering the risk of damage during disassembly. Furthermore, the tilted support frame 2 supporting the tilted battery module 100 also helps improve the smooth flow of heat generated by the battery module 100, reducing heat accumulation at the bottom of the battery module 100, preventing overheating due to poor heat dissipation, effectively improving the heat dissipation of the battery rack and energy storage device, and ensuring the service life of the battery module 100 and energy storage device. At the same time, the tilted angle of the support frame 2 also helps reduce discomfort for operators during operation, eliminating the need for excessive bending or forceful lifting of the battery, thus reducing the intensity of the work.

[0033] Furthermore, combined Figure 4 and Figure 5As shown, the support member 21 includes a support portion 211 and a connecting portion 212. The connecting portion 212 includes a first connecting branch 2121 and a second connecting branch 2122 arranged at an angle. The first connecting branch 2121 is connected to the bracket 1, and the support portion 211 is disposed on the second connecting branch 2122. The support portion 211 is used to support the battery module 100. By setting the connecting part 212, the first connecting branch 2121 is connected to the bracket 1, and the support part 211 is set on the second connecting branch 2122. This can effectively reduce the situation where the connecting structure and the support structure overlap and the connection is inconvenient, making the installation and adjustment of the support member 21 more convenient. Moreover, the combination of the support part 211 and the connecting part 212 makes the support member 21 more stable during the load-bearing process, and can effectively share the load. The load such as the battery module 100 borne by the support part 211 can be transferred to the bracket 1 through the connecting part 212 to support the battery module 100 on the support frame 2, and avoid excessive deformation or damage to the support part 211 during use.

[0034] In addition, the connecting portion 212 also includes reinforcing ribs, which are used to connect the first connecting branch 2121 and the second connecting branch 2122. By providing reinforcing ribs, the supporting strength between the first connecting portion 212 and the second connecting branch 2122 is effectively strengthened, reducing the possibility of the second connecting branch 2122 bending while bearing the battery module 100 and the support portion 211, and effectively ensuring the structural stability of the connecting portion 212.

[0035] Optionally, the connecting part 212 is detachably connected to the bracket 1, that is, the support frame 2 is detachably connected to the bracket 1. The first connecting part 2121 is provided with a through hole, and the bracket 1 is provided with a threaded hole. A bolt passes through the through hole and is screwed into the threaded hole to connect the first connecting part 2121 to the bracket 1. The detachable connection between the support frame 2 and the bracket 1 facilitates the maintenance and replacement of the support frame 2, reduces the maintenance cost of the battery rack, and allows for selective installation of the support frame 2 according to the height of the battery module 100, thereby creating more installation space for the battery module 100 and improving the compatibility of the battery rack. Of course, the through hole on the first connecting part 2121 is a strip hole, the length of which extends vertically. The strip hole allows for adjustment of the position of the support frame 2 on the bracket 1 in the vertical direction, improving the practicality of the battery rack.

[0036] Furthermore, such as Figure 4 and Figure 5As shown, the support member 21 also includes a first limiting part 213 and a second limiting part 214. The first limiting part 213 and the support part 211 are arranged vertically at intervals. The second limiting part 214 connects the first limiting part 213 and the support part 211. The support part 211, the second limiting part 214 and the first limiting part 213 enclose each other to form a sliding groove 215. Part of the battery module 100 is engaged in the sliding groove 215. By setting the sliding groove 215, not only can part of the battery module 100 be inserted into the sliding groove 215 and installed on the support frame 2, but the first limiting part 213 can also limit the vertical displacement of the battery module 100 on the support part 211, improving the installation stability of the battery module 100. At the same time, the second limiting part 214 can also stop some of the bolts exposed on the battery module 100, improving the connection structure stability of the battery module 100. Of course, the first limiting part 213 and the second limiting part 214 can be a structure formed by bending a single sheet metal piece.

[0037] In addition, an inclined guide portion is provided at one end of the first limiting portion 213 near the first side 11. The guide portion is inclined downward from the end near the first side 11 toward the end away from the first side 11. By providing the guide portion, it is easier for the battery module 100 to pass through each first limiting portion 213 when it is inserted into the slide groove 215, thereby improving the installation convenience of the battery module 100.

[0038] Preferably, the support member 21 further includes a stop portion 216. The stop portion 216 is provided at the end of the second limiting portion 214 away from the first side 11, and the stop portion 216 is at least partially inserted into the slide groove 215. By providing the stop portion 216, the battery module 100 can be stopped, preventing the battery module 100 from slipping off the support frame 2 due to excessive installation movement, thus effectively improving the installation accuracy of the battery module 100.

[0039] In some embodiments, the support frame 2 further includes a guide rail disposed on the support member 21. The guide rail has an upward-facing support surface, on which the battery module 100 can be slidably disposed. The guide rail has high wear resistance and good sliding performance. During installation, only one end of the battery module 100 needs to be placed on the guide rail, and the battery module 100 needs to be pushed to slide along the guide rail to complete the installation. During disassembly, only the inclined bottom of the battery module 100 needs to be supported, and the battery module 100 can be slid out along the guide rail. The operation is simple and reduces the difficulty of pulling with force.

[0040] Optionally, the guide rail is detachably mounted on the support member 21. This detachable mounting allows for maintenance of the support frame 2 after prolonged wear and tear, requiring only the replacement of the guide rail itself without needing to replace other structures of the support frame 2, thus saving costs. For example, the guide rail has a through hole, and the support member 21 has a threaded hole. Bolts are passed through the through hole and screwed into the threaded hole to install the guide rail. This bolted detachable mounting allows for easy disassembly, replacement, or repair of the guide rail, simplifying the maintenance process and reducing maintenance costs.

[0041] Furthermore, the support frame 2 also includes ball bearings. Multiple mounting grooves are spaced along the length of the guide rail on the supporting surface of the guide rail. Ball bearings are placed in the mounting grooves, with portions of the ball bearings protruding from the groove openings. The battery module 100 is slidably connected to the ball bearings. By incorporating rolling ball bearings, friction between the battery module 100 and the guide rail can be effectively reduced, improving the smoothness of the battery module 100's sliding and reducing wear on both the battery module 100 and the guide rail, thus extending their service life.

[0042] Preferably, the top of the ball protrudes from the support surface of the guide rail by 0.5 to 1.2 mm. For example, the distance between the top of the ball protruding from the support surface of the guide rail is 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, etc. This protrusion height is moderate, which can enable the top of the ball to form effective rolling contact with the battery module 100, ensure the rolling stability of the ball, and reduce the possibility of friction between the battery module and the support surface.

[0043] In other embodiments, the locking member 2111 includes a snap-fit ​​groove provided on one end of the support portion 211 adjacent to the first side 11. The snap-fit ​​groove allows the protrusion on the bottom side of the battery module 100 to be engaged. During installation, before pushing the battery module 100 into place along the support portion 211, the battery module 100 only needs to be slightly lifted so that the protrusion of the battery can be supported on the support portion 211. Then, the battery module 100 is pushed further so that the protrusion of the battery module 100 is engaged in the snap-fit ​​groove, thereby achieving the locking of the battery module 100 and the support portion 211.

[0044] Of course, when a guide rail is provided, the locking member 2111 is a snap-fit ​​groove that allows the protrusion on the bottom side of the battery module 100 to engage. The snap-fit ​​groove is located on one end of the support 211 near the first side 11. That is, during installation, before pushing the battery module 100 into place along the guide rail, it is only necessary to slightly lift the battery module 100 so that the protrusion of the battery can be supported on the guide rail. Then, continue to push the battery module 100 so that the protrusion of the battery module 100 engages in the snap-fit ​​groove, thereby achieving the locking of the battery module 100 and the guide rail. The engagement is stable and not easy to fall off.

[0045] In addition, the locking element 2111 can also be an elastic latch, which includes a locking pin and a spring. A stepped groove is provided on one end of the guide rail near the first side 11. The stepped groove includes a first groove and a second groove. The second groove is located at the bottom of the first groove and passes through the guide rail. The locking pin includes a locking part and a guiding part. The guiding part is slidably connected to the groove wall of the second groove. The locking part is partially exposed in the first groove. The spring is sleeved outside the guiding part, and both ends of the spring abut against the locking part and the bottom of the first groove. The spring always has a tendency to push the locking part into the locking groove at the bottom of the battery module 100. The snap-fit ​​part is provided with an inclined surface, which is inclined downward from the end away from the first side 11 toward the end close to the first side 11. When the battery module 100 is installed, the inclined surface can be pushed to compress the snap-fit ​​part and retract it into the first groove until the battery module 100 is pushed to the stop part 216. At this time, the snap-fit ​​part is opposite to the snap-fit ​​groove at the bottom of the battery module 100. At this time, the spring drives the snap-fit ​​part to snap into the snap-fit ​​groove to realize the installation of the battery module 100. When disassembling, only the bottom of the guide rail needs to be dragged to separate the snap-fit ​​part from the snap-fit ​​groove. The structure is simple and the disassembly and assembly are convenient.

[0046] Furthermore, such as Figure 3 As shown, the length of the support frame 2 extends along a third direction (the third direction is direction O in the figure), and the angle θ between the third direction and the second direction satisfies: 2°≤θ≤8°. For example, the angle θ between the third direction and the second direction can be 2°, 3°, 4°, 5°, 6°, 7°, or 8°, etc. If the angle θ between the third direction and the second direction is too small, it will easily lead to poor smoothness of the battery module 100's disassembly and natural sliding. If the angle θ between the third direction and the second direction is too large, it will easily lead to uneven force on both ends of the battery frame along the first direction, which may easily cause accidents such as collapse. The angle θ between the third direction and the second direction in this design is moderate, which can ensure the smoothness of the battery module 100's natural sliding during disassembly, and also ensure the installation stability of the battery module 100 and the battery frame.

[0047] Furthermore, the battery rack also includes a base 3 and a connecting frame 4. All the brackets 1 are mounted on the base 3, and the ends of all the brackets 1 furthest from the base 3 are connected by the connecting frame 4. By mounting the brackets 1 on the base 3, the installation stability of the brackets 1 can be effectively enhanced. The base 3 provides support, ensuring that the brackets 1 will not tilt or shake due to external forces during use. At the same time, it can improve the operational efficiency of subsequent operations such as moving and installing the overall structure. Moreover, the connection of the brackets 1 by the connecting frame 4 can further enhance the structural installation stability of the brackets 1 and improve the overall structural strength of the battery rack.

[0048] like Figure 1As shown, embodiments of this utility model also provide an energy storage device, including a battery module 100 and a battery rack as described in any of the above embodiments, with multiple battery modules 100 spaced apart on the battery rack. The energy storage device of this utility model, by tilting the support frame 2 on the battery rack downwards, allows the battery modules 100 to slide naturally downwards along the tilted support frame 2 during disassembly, saving time and effort and improving the convenience for operators to disassemble the battery modules 100. The tilted support frame 2 supporting the tilted battery modules 100 helps improve the smooth flow of heat generated by the battery modules 100, reducing the accumulation of heat at the bottom of the battery modules 100, preventing overheating due to poor heat dissipation, effectively improving the heat dissipation effect of the energy storage device, and ensuring the service life of the energy storage device.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery holder, characterized in that, The device includes a bracket (1), a support frame (2), and a locking member (2111). At least two brackets (1) are spaced apart along a first direction. Two support frames (2) spaced apart and opposite to each other form a group. Two support frames (2) in the same group are respectively disposed on two adjacent brackets (1), and each group of support frames (2) supports a battery module (100). Multiple groups of support frames (2) spaced apart along a vertical direction are disposed on two adjacent brackets (1). The bracket (1) has a first side (11) arranged along a second direction. The support frame (2) is inclined downward from the end away from the first side (11) toward the end adjacent to the first side (11). At least one of the two support frames (2) spaced apart by two adjacent brackets (1) is provided with the locking member (2111). The locking member (2111) can fix the battery module (100). The first direction, the second direction, and the vertical direction are perpendicular to each other.

2. The battery holder according to claim 1, characterized in that, The support frame (2) includes a support member (21), which includes a support portion (211) and a connecting portion (212). The connecting portion (212) includes a first connecting branch (2121) and a second connecting branch (2122) arranged at an angle. The first connecting branch (2121) is connected to the bracket (1), and the support portion (211) is disposed on the second connecting branch (2122). The support portion (211) is used to support the battery module (100).

3. The battery holder according to claim 2, characterized in that, The support member (21) further includes a first limiting part (213) and a second limiting part (214). The first limiting part (213) is spaced apart above the support part (211) along the vertical direction. The second limiting part (214) connects the first limiting part (213) and the support part (211). The support part (211), the second limiting part (214) and the first limiting part (213) enclose to form a sliding groove (215). Part of the battery module (100) is engaged in the sliding groove (215).

4. The battery holder according to claim 3, characterized in that, The support member (21) further includes a stop (216), wherein the stop (216) is provided at one end of the second limiting part (214) away from the first side (11), and the stop (216) is at least partially inserted into the slide groove (215); and / or, The connecting part (212) further includes a reinforcing rib, which is used to connect the first connecting branch (2121) and the second connecting branch (2122).

5. The battery holder according to claim 2, characterized in that, The support frame (2) also includes a guide rail, which is disposed on the support part (211). The guide rail has an upwardly facing support surface, and the battery module (100) can be slidably disposed on the support surface.

6. The battery holder according to claim 5, characterized in that, The guide rail is detachably mounted on the support member (21); and / or, The support frame (2) also includes a ball bearing. Multiple mounting grooves are provided at intervals along the length direction of the guide rail on the support surface of the guide rail. The ball bearing is provided in the mounting groove, and part of the ball bearing is exposed at the opening of the mounting groove. The battery module (100) is slidably connected to the ball bearing.

7. The battery holder according to claim 2, characterized in that, The locking member (2111) includes a locking groove that can be engaged with the protrusion on the bottom side of the battery module (100), and the locking groove is disposed at one end of the support (211) adjacent to the first side surface (11).

8. The battery holder according to any one of claims 1-7, characterized in that, The length of the support frame (2) extends along a third direction, and the angle θ between the third direction and the second direction satisfies: 2°≤θ≤8°.

9. The battery holder according to any one of claims 1-7, characterized in that, The battery rack also includes a base (3) and a connecting frame (4). All the brackets (1) are disposed on the base (3), and the end of all the brackets (1) away from the base (3) is connected through the connecting frame (4).

10. An energy storage device, characterized in that, It includes battery modules and a battery rack as described in any one of claims 1-9, wherein a plurality of battery modules (100) are spaced apart on the battery rack.

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