A rack-mounted battery
By designing a combined structure of an inner mounting shell and an outer protective shell, the problems of large battery chassis size and non-compact structure were solved, thereby improving the stability and safety of the battery module and saving space.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG BEI NENG NEW ENERGY CO LTD
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-03
AI Technical Summary
Existing battery enclosures are large and not compact enough, resulting in unstable battery module installation, large footprint, and susceptibility to collisions caused by external forces.
Design a cabinet battery with a combined structure of inner mounting shell and outer protective shell. The battery module is stably and securely fixed in the inner mounting shell by limiting plate and folding flange, and a cavity is formed between the outer protective shell and the inner mounting shell to provide double protection and avoid direct force on the battery module.
It improves the stability and safety of the battery module, has a compact structure, saves space, and prevents the battery module from being squeezed and collided under external forces, thus improving the stability and safety of the battery.
Smart Images

Figure CN224458415U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery technology, specifically to a cabinet battery. Background Technology
[0002] As people explore energy management, a new energy management approach is gaining increasing acceptance and recognition: energy storage. In recent years, energy storage technology has advanced rapidly, especially with the development of lithium-ion battery technology as the primary energy storage technology. This advancement has eliminated the cumbersome nature of traditional lead-acid batteries and better meets environmental protection requirements, leading to the large-scale development of the energy storage industry. Energy storage batteries are mainly assembled into battery packs by connecting batteries in series or parallel for energy storage, typically used as backup power for commercial and household appliances, as well as emergency power.
[0003] In pursuit of multiple performance features, people have installed more and more functional modules inside the battery casing, resulting in increasingly complex battery structures and larger and less compact casings. This requires more space for storage and occupies a large area. Furthermore, due to the large size and less compact structure of the casing, the battery modules are not stable when installed inside the casing. When subjected to external forces, the battery modules are prone to collisions with other modules inside the casing, leading to instability. Utility Model Content
[0004] The purpose of this utility model is to provide a rack-mount battery with a simple structure, small size, and compact design, which can be easily installed in various racks, saving space. Moreover, the battery module is firmly fixed in a compact space, which has strong stability, reliability, and safety, thus solving the problem of unstable installation of existing batteries due to their large size and insufficient compactness.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A battery rack enclosure includes a housing with an inner cavity. An installation assembly is installed inside the housing. The installation assembly includes an outer protective shell fixed to the inner wall of the housing and an inner mounting shell fixed to the inner circumference of the outer protective shell. A vertically distributed cavity is formed between the outer protective shell and the inner mounting shell. A battery module is installed inside the inner mounting shell. The inner mounting shell includes two first limiting plates arranged symmetrically vertically and two second limiting plates arranged symmetrically horizontally. The front ends of the first limiting plates are bent downwards or upwards to form first flanges that press against the battery module. The rear ends of the first limiting plates are bent downwards or upwards to form second flanges that press against the battery module. The front ends of the second limiting plates are bent to the left or right to form several third flanges that press against the battery module.
[0007] Preferably, the first limiting plate has a plurality of first screw holes at its left and right ends, and the second limiting plate has horizontal folded edges at its upper and lower ends that are bent away from the battery module. The folded edges have a plurality of second screw holes that are opposite to the first screw holes.
[0008] Preferably, the outer protective shell includes two support plates arranged symmetrically in the upper and lower parts and a fixing plate arranged symmetrically in the left and right parts. The front and rear ends of the support plates are bent downward or upward to form edging. The lower support plate is connected to the bottom wall of the box through the edging. The upper and lower ends of each fixing plate are connected to the ends of the two support plates respectively.
[0009] Preferably, the fixing plate is bent to the side away from the second limiting plate to form a right-angled edge, a hanging plate is installed on the right-angled edge, the top of the hanging plate is supported by the bottom of the folded edge at the upper end of the second limiting plate, and the bottom end of the hanging plate is connected to the top of the folded edge at the lower end of the second limiting plate.
[0010] Preferably, the rear end of the second limiting plate is bent toward the side away from the battery module to form a vertical stop. The second limiting plate, the stop, the fixing plate and the hanging plate form a first module cavity, and the fixing plate, the right-angled edge and the inner wall of the box form a second module cavity.
[0011] Preferably, the right-angled edge has a plurality of equally spaced third screw holes arranged in the vertical direction, and the hanging plate is L-shaped, with a plurality of U-shaped grooves opposite to the third screw holes on one side in the vertical direction.
[0012] Preferably, the housing includes a main shell, a top cover, and a front cover. The main shell has an opening at the top and a front opening. The top cover is disposed at the opening at the top of the main shell, and the front cover is disposed at the opening at the front of the main shell.
[0013] Preferably, an L-shaped bracket is provided at the connection between the main housing and the top cover.
[0014] Preferably, the battery module includes a plurality of stacked battery cells, with a first epoxy plate disposed between each pair of adjacent battery cells, and a second epoxy plate disposed on the outer periphery of the battery module.
[0015] Preferably, the top cover is provided with handles at both ends, the handles are C-shaped, and their ends are hinged to the top cover.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: by completely housing the battery module in the inner mounting shell, and securing the battery module stably and firmly within the inner mounting shell through the first, second, and third flanges, and tightly connecting the outer protective shell to the inner wall of the box, the box is made smaller in size and more compact in structure. The box is drawer-type and can be easily installed in various mounting racks, saving space. Furthermore, the outer protective shell and the inner mounting shell within the box provide dual protection for the battery module. The cavity formed between the outer protective shell and the inner mounting shell can prevent the battery module from being directly squeezed and collided when the box is subjected to external forces, preventing the battery from being punctured. Therefore, the stability and reliability are stronger, and the battery safety is improved. Attached Figure Description
[0017] Figure 1 This is a perspective view of a battery rack according to the present invention;
[0018] Figure 2 This is an exploded view of a cabinet battery according to the present invention;
[0019] Figure 3 This is a perspective view of a battery rack with the front cover omitted, according to the present invention.
[0020] Figure 4 This is a front view of a battery rack with the front cover omitted, according to the present invention.
[0021] Figure 5 This is a schematic diagram of the outer protective shell, inner mounting shell, and battery module of this utility model.
[0022] Figure 6 This is an exploded view of the outer protective shell, inner mounting shell, and battery module of this utility model.
[0023] In the diagram: 1. Box body; 11. Main shell; 12. Top cover; 13. Front cover; 2. Outer protective shell; 21. Support plate; 211. Edge banding; 22. Fixing plate; 221. Right angle edge; 222. Third opening; 23. Hanging plate; 24. Rib plate; 3. Inner mounting shell; 31. First limiting plate; 311. First folded edge; 312. Second folded edge; 313. First opening; 32. Second limiting plate; 321. Third folded edge; 322. Folded edge; 323. Edge retainer; 324. Second opening; 4. Cavity; 5. Battery module; 6. First module cavity; 7. Second module cavity; 8. Handle. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" or "more than" means two or more, unless otherwise explicitly specified. In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0026] Please see Figure 1-2 A cabinet battery includes a housing 1 with an inner cavity. An mounting assembly is installed inside the housing 1. The mounting assembly includes an outer protective shell 2 fixed to the inner wall of the housing 1 and an inner mounting shell 3 fixed to the inner periphery of the outer protective shell 2. (See also...) Figure 3-4 A vertically spaced cavity 4 is formed between the outer protective shell 2 and the inner mounting shell 3, and the battery module 5 is installed inside the inner mounting shell 3. Please refer to [link / reference]. Figure 5-6The inner mounting shell 3 includes two first limiting plates 31 arranged symmetrically in the upper and lower positions and two second limiting plates 32 arranged symmetrically in the left and right positions. The front end of the first limiting plate 31 is bent downward or upward to form a first flange 311 that presses against the battery module 5. The rear end of the first limiting plate 31 is bent downward or upward to form a second flange 312 that presses against the battery module 5. The front end of the second limiting plate 32 is bent to the left or right to form a plurality of third flanges 321 that press against the battery module 5.
[0027] This utility model completely houses the battery module 5 within the inner mounting shell 3, and secures the battery module 5 within the inner mounting shell 3 by means of the first flange 311, the second flange 312, and the third flange 321. The outer protective shell 2 is tightly connected to the inner wall of the housing 1, resulting in a smaller and more compact housing 1. The housing 1 is drawer-type, allowing it to be easily installed in various cabinets, saving space. Furthermore, the outer protective shell 2 and the inner mounting shell 3 within the housing 1 provide dual protection for the battery module 5. The cavity 4 formed between the outer protective shell 2 and the inner mounting shell 3 prevents the battery module 5 from being directly squeezed or collided when the housing 1 is subjected to external forces, preventing punctures. Therefore, it offers strong stability and reliability, improving battery safety.
[0028] Please see Figure 5-6 The first limiting plate 31 has several first screw holes at its left and right ends, and the second limiting plate 32 has horizontal folded edges 322 formed at its upper and lower ends, which are bent away from the battery module 5. The folded edges 322 have several second screw holes that are opposite to the first screw holes. During installation, the first screw holes and second screw holes are aligned first, and then the folded edges 322 are fixed to the first limiting plate 31 with screws.
[0029] Please see Figure 5-6 The outer protective shell 2 includes two support plates 12 arranged symmetrically vertically and two fixing plates 22 arranged symmetrically horizontally. The front and rear ends of each support plate 12 are bent downwards or upwards to form edging 211. The lower support plate 12 is connected to the bottom wall of the housing 1 via the edging 211. The upper and lower ends of each fixing plate 22 are connected to the ends of the two support plates 12, respectively. In this embodiment, an accommodating space is formed between the upper support plate 12 and the top wall of the housing 1 for installing various communication modules and wiring harnesses.
[0030] The fixing plate 22 is bent away from the second limiting plate 32 to form a right-angled edge 221. A hanging plate 23 is installed on the right-angled edge 221. The top of the hanging plate 23 is supported by the bottom of the folded edge 322 at the upper end of the second limiting plate 32. The bottom end of the hanging plate 23 is connected to the top of the folded edge 322 at the lower end of the second limiting plate 32. The inner mounting shell 3 is installed on the outer protective shell 2 through the folded edge 322. The right-angled edge 221 has several equally spaced third screw holes in the vertical direction. The hanging plate 23 is L-shaped, and one side has several U-shaped grooves in the vertical direction that are opposite to the third screw holes. During installation, the installation position of the hanging plate 23 on the right-angled edge 221 can be adjusted by adjusting the alignment position of the U-shaped grooves and the third screw holes, and then it can be fixed with screws. The installation is convenient and flexible. In this embodiment, ribs 24 are connected between the two sides of the hanging plate 23 to enhance the connection stability of the outer protective shell 2.
[0031] Please refer to Figure 4 as well as Figure 6 The length of the hanging plate 23 is shorter than that of the fixed plate 22, so that the upper first limiting plate 31 overlaps the hanging plate 23 through the folded edge 322, and the two first limiting plates 31 respectively form the cavity 4 between the support plate 12.
[0032] The rear end of the second limiting plate 32 is bent away from the battery module 5 to form a vertical baffle 323. A first module cavity 6 for installing other modules is formed between the second limiting plate 32, the baffle 323, the fixing plate 22 and the hanging plate 23. A second module cavity 7 for installing other modules is formed between the fixing plate 22, the right-angled edge 221 and the inner wall of the box 1.
[0033] Please see Figure 5-6 The first limiting plate 31 has a plurality of first openings 313, the second limiting plate 32 has a plurality of second openings 324, and the fixing plate 22 has a plurality of third openings 222 opposite to the second openings 324. The above openings not only facilitate heat dissipation of the battery module 5, but also help to reduce the weight of the entire device, making the battery lighter.
[0034] Please see Figure 1-2 The housing 1 includes a main shell 11, a top cover 12, and a front cover 13. The main shell 11 has openings at its top and front. The top cover 12 covers the top opening of the main shell 11, and the front cover 13 seals the front opening of the main shell 11. In this embodiment, an L-shaped bracket is provided at the connection between the main shell 11 and the top cover 12.
[0035] Please refer to the figure. Figure 6The battery module 5 includes several stacked battery cells. A first epoxy plate is provided between each pair of adjacent battery cells. A second epoxy plate is provided on the outer periphery of the battery module 5. The first epoxy plate and the second epoxy plate serve to provide insulation and isolation.
[0036] Please see Figure 3 as well as Figure 6 The battery cells are connected in series via aluminum sheets. A control board is mounted on the top cover 12 of the housing 1, and the battery cells are electrically connected to the control board via wires. In this embodiment, the top cover 12 is equipped with a battery positive terminal interface, a battery negative terminal structure, a network interface, a control switch, a display screen, a capacity indicator light, and LCD display buttons, all electrically connected to the control board.
[0037] The top cover 12 is provided with handles 8 at both ends. The handles 8 are C-shaped and are hinged to the top cover 12 at both ends. The entire box 1 can be lifted by the handles 8 for easy handling and easy loading into or unloading from various racks.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A cabinet battery comprising a box (1) having an internal cavity, characterised in that: An installation assembly is installed inside the housing (1). The installation assembly includes an outer protective shell (2) fixed to the inner wall of the housing (1) and an inner installation shell (3) fixed to the inner circumference of the outer protective shell (2). A cavity (4) is formed between the outer protective shell (2) and the inner installation shell (3) in an up-down distribution. A battery module (5) is installed inside the inner installation shell (3). The inner installation shell (3) includes two first limiting plates (31) arranged symmetrically in the upper and lower positions and two second limiting plates (32) arranged symmetrically in the left and right positions. The front end of the first limiting plate (31) is bent downward or upward to form a first flange (311) that presses against the battery module (5). The rear end of the first limiting plate (31) is bent downward or upward to form a second flange (312) that presses against the battery module (5). The front end of the second limiting plate (32) is bent to the left or right to form a plurality of third flanges (321) that press against the battery module (5).
2. The cabinet battery of claim 1, wherein: The first limiting plate (31) has several first screw holes at its left and right ends respectively. The second limiting plate (32) has horizontal folded edges (322) at its upper and lower ends respectively, which are bent away from the battery module (5). The folded edges (322) have several second screw holes opposite to the first screw holes.
3. The cabinet-mounted battery of claim 2, wherein: The outer protective shell (2) includes two support plates (21) arranged symmetrically in the upper and lower parts and a fixing plate (22) arranged symmetrically in the left and right parts. The support plates (21) are bent downward or upward at the front and rear ends respectively to form a edging (211). The support plate (21) located below is connected to the bottom wall of the box body (1) through the edging (211). The upper and lower ends of each fixing plate (22) are respectively connected to the ends of the two support plates (21).
4. The cabinet battery of claim 3, wherein: The fixing plate (22) is bent away from the second limiting plate (32) to form a right angle side (221). A hanging plate (23) is installed on the right angle side (221). The top of the hanging plate (23) is supported by the bottom of the folded edge (322) at the upper end of the second limiting plate (32). The bottom end of the hanging plate (23) is connected to the top of the folded edge (322) at the lower end of the second limiting plate (32).
5. The cabinet-mounted battery of claim 4, wherein: The rear end of the second limiting plate (32) is bent toward the side away from the battery module (5) to form a vertical stop (323). The second limiting plate (32), the stop (323), the fixing plate (22) and the hanging plate (23) form a first module cavity (6). The fixing plate (22), the right angle edge (221) and the inner wall of the box (1) form a second module cavity (7).
6. The cabinet-mounted battery of claim 4, wherein: The right-angled side (221) has several equally spaced third screw holes in the vertical direction, and the hanging plate (23) is L-shaped with several U-shaped grooves opposite to the third screw holes in the vertical direction on one side.
7. The cabinet battery of any of claims 1-6, wherein: The housing (1) includes a main housing (11), a top cover (12) and a front cover (13). The main housing (11) has an opening at the top and a front end. The top cover (12) covers the opening at the top of the main housing (11), and the front cover (13) seals the opening at the front end of the main housing (11).
8. The cabinet-mounted battery of claim 7, wherein: An L-shaped bracket is provided at the connection between the main housing (11) and the upper cover (12).
9. The cabinet battery of any of claims 1-6, wherein: The battery module (5) includes several stacked cells, with a first epoxy plate between each pair of adjacent cells, and a second epoxy plate on the outer periphery of the battery module (5).
10. The cabinet-mounted battery of claim 7, wherein: The top cover (12) is provided with handles (8) at both ends. The handles (8) are C-shaped and are hinged to the top cover (12) at both ends.