Battery compartment of energy storage power supply sheet metal part

Abstract

The utility model relates to an energy storage power supply sheet metal part battery compartment which comprises a sheet metal part shell. The sheet metal part shell comprises a first sheet metal part and a second sheet metal part; the first sheet metal part is U-shaped; the second sheet metal part is matched with the openings in the two sides of the U-shaped sheet metal part so as to form a containing cavity in the U-shaped sheet metal part; a battery cell group is arranged in the accommodating cavity; a bracket is arranged at the top of the battery cell group; the edge part of the bracket is matched and limited with a clamping opening in the sheet metal part shell through a clamping block; the second sheet metal part comprises a turned-over edge which is bent in the direction deviating from the accommodating cavity; the turned-over edge abuts against the inner side wall of the first sheet metal part; a first connecting hole is formed in the first sheet metal part; a second connecting hole is formed in the turned edge; the first connecting hole and the second connecting hole are fixed through a connecting piece. The flanging of the second sheet metal part abuts against the inner side wall of the first sheet metal part, and the first connecting hole and the second connecting hole are combined to be fixed through the riveting part, so that the whole sheet metal part shell forms a stable whole, and the strength and the rigidity of the battery compartment are improved.

Description

Technical Field

[0001] This utility model relates to the field of batteries, and in particular to a battery compartment for an energy storage power supply sheet metal component. Background Technology

[0002] With the increasing power and capacity of energy storage power supplies, the comprehensive design of energy storage power supplies, including safety, stability, and cost, has been continuously optimized. Using plastic casings to fix the battery cells is a mature solution for small energy storage battery modules. However, for home energy storage power supplies with large capacities, the number of battery cells and their size and weight are relatively large, making plastic casings less suitable from the perspectives of material strength and mold costs. Using die-cast aluminum casings to fix the battery cells is commonly used in the automotive battery field, but in the home energy storage sector, die-cast aluminum is too expensive. Using sheet metal casings is a reasonable solution for home energy storage, but there is still considerable room for improvement in terms of casing insulation, weld dimensions, and rust prevention. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides a battery compartment for an energy storage power supply sheet metal component.

[0004] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0005] A battery compartment for an energy storage power supply is provided, comprising a sheet metal shell; the sheet metal shell includes a first sheet metal part and a second sheet metal part; the first sheet metal part is U-shaped; the second sheet metal part and the openings on both sides of the U-shaped sheet metal part cooperate to form an internal accommodating cavity; a battery cell assembly is provided in the accommodating cavity; a bracket is provided on the top of the battery cell assembly; the edge of the bracket is limited by a locking block cooperating with a locking interface on the sheet metal shell; the second sheet metal part includes a flange bent away from the direction of the accommodating cavity; the flange abuts against the inner sidewall of the first sheet metal part; the first sheet metal part is provided with a first connecting hole; the flange is provided with a second connecting hole; the first connecting hole and the second connecting hole are fixed by a connector.

[0006] In one embodiment of this utility model, the connecting member is a riveting component.

[0007] In one embodiment of the present invention, the first sheet metal part includes two side plates arranged opposite to each other; the top of the side plates is provided with an extension portion extending away from the accommodating cavity; the extension portion is provided with a fixing hole.

[0008] In one embodiment of the present invention, the second sheet metal part includes a flange that cooperates with the side plate.

[0009] In one embodiment of this utility model, the sheet metal outer shell is disposed inside the mounting shell; the fixing hole is fixedly connected to the mounting shell by screws to limit the deformation of the sheet metal outer shell in the direction away from the battery pack.

[0010] In one embodiment of this utility model, the fixing hole is fixedly connected to the mounting part by screws to limit the deformation of the sheet metal shell in the direction away from the battery pack.

[0011] In one embodiment of this utility model, the card block is connected to the bracket and forms an interval area with the bracket; a guide slope is formed on the outer side of the card block; the top of the card block is provided with an abutment part that cooperates with the top edge of the card interface; a baffle that cooperates with the inner side wall of the sheet metal shell is provided on the side of the abutment part near the middle of the bracket.

[0012] In one embodiment of this utility model, the guide slope is provided with a plurality of recesses.

[0013] The beneficial effects of this utility model are as follows: the second sheet metal part's flange abuts against the inner wall of the first sheet metal part, and is fixed by riveting components through the first and second connecting holes, making the entire sheet metal part shell a stable whole, improving the strength and rigidity of the battery compartment; using riveting instead of welding makes the process simpler and lower in cost; at the same time, it has high strength and prevents defects such as false welding; traditional welds occupy a certain amount of space and require rust prevention treatment, making the process complex; by utilizing the flange structure and the riveting fixing method, on the one hand, the sheet metal part shell can be quickly generated, and on the other hand, the folding direction of the flange makes the internal space of the accommodating cavity very regular, which means that the flange does not occupy the space of the accommodating cavity, and the connection structure between the flange and the first sheet metal part also does not occupy the internal space of the accommodating cavity, thus making the fit between the battery cell assembly and the accommodating cavity better and the internal space utilization rate higher; the flange structure can also effectively enhance the structural strength of the sheet metal part; the outer guide slope and inner concave part of the card block reduce the installation friction, making it easier for the card block to slide into the card interface and improving the installation efficiency. Attached Figure Description

[0014] 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 of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is an exploded view of the sheet metal shell of this utility model;

[0016] Figure 2 yes Figure 1 Enlarged view of section A in the middle;

[0017] Figure 3 This is a perspective view of the sheet metal shell of this utility model;

[0018] Figure 4 This is a schematic diagram of the use of the sheet metal shell of this utility model;

[0019] Figure 5 yes Figure 4 Enlarged view of section B;

[0020] Figure 6 This is a reference diagram showing the usage state of the sheet metal shell of this utility model;

[0021] Explanation of reference numerals in the attached figures:

[0022] 100. Sheet metal housing; 101. Inner sidewall; 102. Receiving cavity; 110. First sheet metal part; 111. Side plate; 112. First connecting hole; 113. Extension; 114. Fixing hole; 115. Snap-fit ​​interface; 116. Top edge; 120. Second sheet metal part; 121. Flanged edge; 122. Second connecting hole; 200. Battery cell assembly; 300. Bracket; 301. Spacing area; 310. Snap-fit ​​block; 311. Guide slope; 312. Recessed part; 313. Abutting part; 314. Baffle; 400. Mounting shell. Detailed Implementation

[0023] 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 a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.

[0026] Example: Figure 1-6 As shown,

[0027] A sheet metal battery compartment for an energy storage power supply includes a sheet metal shell 100. The sheet metal shell 100 includes a first sheet metal part 110 and a second sheet metal part 120. The first sheet metal part 110 is U-shaped. The second sheet metal part 120 cooperates with the openings on both sides of the U-shaped sheet metal part to form an internal accommodating cavity 102. A battery cell assembly 200 is disposed in the accommodating cavity 102. A bracket 300 is provided on the top of the battery cell assembly 200. The edge of the bracket 300 is limited by a locking block 310 cooperating with a locking interface 115 on the sheet metal shell 100. The locking block 310 on the edge of the bracket 300 and the locking interface 115 on the sheet metal shell 100 can accurately position the bracket 300 in the accommodating cavity 102 of the sheet metal shell 100, which facilitates installation and ensures that the bracket 300 will not shake after installation, thereby enhancing the stability of the structure and providing better fixation for the battery cell assembly 200.

[0028] The second sheet metal part 120 includes a flange 121 bent away from the direction of the receiving cavity 102; the flange 121 abuts against the inner sidewall 101 of the first sheet metal part 110; this design increases the tightness of the connection between the two sheet metal parts, making the entire sheet metal outer shell 100 form a more stable integral structure, which helps to improve the strength and rigidity of the battery compartment and better protect the internal battery cell assembly 200. The flange 121 also greatly improves the convenience of connecting the first sheet metal part 110 and the second sheet metal part 120; it can achieve a faster fixed connection between the two.

[0029] The first sheet metal part 110 is provided with a first connecting hole 112; the flange 121 is provided with a second connecting hole 122; the first connecting hole 112 and the second connecting hole 122 are fixed by a connector. The connector is a riveting component. The first connecting hole 112 on the first sheet metal part 110 and the second connecting hole 122 on the flange 121 are fixed by a riveting component. The riveting method provides a firm connection that can withstand greater tensile and shear forces, ensuring the reliability of the connection between the two sheet metal parts and preventing loosening. This improves the overall stability and safety of the battery compartment of the energy storage power supply sheet metal part. Moreover, the riveting process is relatively simple and low-cost, which helps to improve production efficiency and reduce production costs. Using riveting instead of welding simplifies the process and reduces costs; it also provides high strength and prevents defects such as incomplete welds. Traditional welds occupy space and require rust prevention treatment, making the process complex. By utilizing the structure of the flange 121 and the riveting fixing method, the sheet metal shell 100 can be quickly generated. Furthermore, the folding direction of the flange 121 makes the internal space of the accommodating cavity 102 very regular. It can be understood that the flange 121 does not occupy the space of the accommodating cavity 102, and the connection structure between the flange 121 and the first sheet metal part 110 also does not occupy the internal space of the accommodating cavity 102. This results in a better fit between the battery pack 200 and the accommodating cavity 102 and a higher utilization rate of internal space. The flange 121 structure can also effectively enhance the structural strength of the sheet metal part.

[0030] In one embodiment, the first sheet metal part 110 includes two side plates 111 disposed opposite to each other; the top of each side plate 111 is provided with an extension portion 113 extending away from the accommodating cavity 102; the extension portion 113 is provided with a fixing hole 114. The fixing hole 114 on the extension portion 113 can be used to connect and fix the battery compartment to other components. For example, the battery compartment can be installed on a specific equipment bracket 300 or mounting plate by means of bolts, screws or other connectors, making the installation of the battery compartment more convenient and accurate, and ensuring the stability and reliability of the installation. The provision of the extension portion 113 increases the structural size and strength of the side plate 111, making the side plate 111 more stable when subjected to external forces and less prone to deformation. This helps to protect the cell assembly 200 in the accommodating cavity 102, reducing the risk of squeezing, collision or other damage to the cell assembly 200 that may be caused by deformation of the side plate 111, and improving the safety and stability of the energy storage power supply.

[0031] In one embodiment, the second sheet metal part 120 includes a flange 121 that mates with the side plate 111. That is, only two flanges 121 are provided, which only need to mate with the side plate 111; this ensures structural strength and reduces assembly difficulty.

[0032] In one embodiment, the sheet metal housing 100 is disposed within the mounting housing 400; the fixing hole 114 is fixedly connected to the mounting housing 400 by screws to limit the deformation of the sheet metal housing 100 away from the battery pack. During charging and discharging, the battery cell assembly 200 may experience thermal expansion and contraction, which can easily subject the sheet metal housing 100 to outward pressure. This fixing method enhances the structural stability of the housing, preventing excessive deformation from affecting the sealing and safety of the battery compartment and the normal operation of the internal battery cell assembly 200. On the other hand, deformation may also occur when subjected to external forces. Connecting to the mounting housing 400 effectively prevents the bracket 300 from detaching from the sheet metal housing 100. Limiting the deformation of the sheet metal housing 100 helps avoid changes in the distance between the battery pack and other components due to housing deformation, reducing the possibility of safety risks such as battery pack compression and short circuits. Simultaneously, it ensures the relative positional relationship between the housing and the battery pack, ensuring the normal operation of functions such as heat dissipation and insulation, further improving the safety and reliability of the energy storage power supply.

[0033] In one embodiment, the mounting portion is fixedly connected to the mounting part within the fixing hole 114 by screws to limit the deformation of the sheet metal housing 100 in the direction away from the battery pack. The mounting part can be a specific equipment bracket 300 or mounting plate, or it can be understood as an external mounting position, producing the same effect as the mounting shell 400 in the previous embodiment;

[0034] In one embodiment, the locking block 310 is connected to the bracket 300 and forms a gap area 301 between them; a guide slope 311 is formed on the outer side of the locking block 310; the top of the locking block 310 is provided with an abutment portion 313 that mates with the top edge 116 of the card interface 115; a baffle 314 that mates with the inner sidewall 101 of the sheet metal housing 100 is provided on the side of the abutment portion 313 near the middle of the bracket 300. The guide slope 311 on the outer side of the locking block 310 can guide the bracket 300 during installation, making it easier for the locking block 310 to be aligned and inserted into the card interface 115 on the sheet metal housing 100, thus facilitating the installation process and improving installation efficiency. Meanwhile, the gap 301 formed between the locking block 310 and the bracket 300 allows the locking block 310 to deform during installation; the abutment portion 313 at the top of the locking block 310 cooperates with the top edge 116 of the locking interface 115, which can restrict the movement of the bracket 300 in the vertical direction and prevent the bracket 300 from coming off upward during use. The baffle 314 provided on the side of the abutment portion 313 near the middle of the bracket 300 cooperates with the inner side wall 101 of the sheet metal housing 100, which also limits the bracket 300 in the horizontal direction, preventing the bracket 300 from swaying left and right. This multi-directional limiting design greatly enhances the stability of the connection between the bracket 300 and the sheet metal housing 100, ensuring the fixation of the cell pack 200 in the battery compartment and reducing the risk of damage to the cell pack 200 due to the shaking of the bracket 300.

[0035] In one embodiment, the guide slope 311 is provided with a plurality of recesses 312. The recesses 312 reduce the actual contact area between the guide slope 311 and the sheet metal housing 100, effectively reducing the friction of the locking block 310 during installation, making it easier for the locking block 310 to slide into the locking interface 115, further facilitating the installation of the bracket 300, especially when multiple insertions and removals or installations of multiple brackets 300 are required, significantly improving installation efficiency. The recesses 312 form gaps that can accommodate any impurities, dust, or minor protrusions caused by processing errors, preventing these foreign objects from causing the locking block 310 to jam during installation, ensuring that the locking block 310 can be smoothly inserted into and removed from the locking interface 115, improving the reliability and service life of the connection structure. During the process of inserting the card block 310 into the card interface 115, the recessed portion 312 can serve as an exhaust channel, allowing air inside the card interface 115 to be discharged through the recessed portion 312, avoiding resistance caused by air accumulation, thus making the insertion process of the card block 310 smoother.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A battery compartment for an energy storage power supply sheet metal component, characterized in that: Includes a sheet metal housing (100); the sheet metal housing (100) includes a first sheet metal part (110) and a second sheet metal part (120); the first sheet metal part (110) is U-shaped; the second sheet metal part (120) cooperates with the openings on both sides of the U-shaped sheet metal part to form an internal receiving cavity (102); a battery cell assembly (200) is provided in the receiving cavity (102); a bracket (300) is provided on the top of the battery cell assembly (200); the edge of the bracket (300) is connected to the sheet metal part by a locking block (310). The card interface (115) on the outer shell (100) of the metal part is used for limiting; the second sheet metal part (120) includes a flange (121) bent away from the direction of the receiving cavity (102); the flange (121) abuts against the inner sidewall (101) of the first sheet metal part (110); the first sheet metal part (110) is provided with a first connecting hole (112); the flange (121) is provided with a second connecting hole (122); the first connecting hole (112) and the second connecting hole (122) are fixed by a connector.

2. The energy storage power supply sheet metal battery compartment according to claim 1, characterized in that: The connector is a riveting component.

3. The battery compartment of a sheet metal part for energy storage power supply according to claim 1, characterized in that: The first sheet metal part (110) includes two side plates (111) arranged opposite to each other; the top of the side plate (111) is provided with an extension (113) extending away from the accommodating cavity (102); the extension (113) is provided with a fixing hole (114).

4. The energy storage power supply sheet metal battery compartment according to claim 3, characterized in that: The second sheet metal part (120) includes a flange (121) that mates with the side panel (111).

5. The battery compartment of a sheet metal part for an energy storage power supply according to claim 3, characterized in that: The sheet metal housing (100) is disposed inside the mounting housing (400); the fixing hole (114) is fixedly connected to the mounting housing (400) by screws to limit the deformation of the sheet metal housing (100) in the direction away from the battery pack.

6. The battery compartment of a sheet metal part for an energy storage power supply according to claim 3, characterized in that: The mounting hole (114) is fixedly connected to the mounting part by screws to limit the deformation of the sheet metal housing (100) in the direction away from the battery pack.

7. The energy storage power supply sheet metal battery compartment according to claim 1, characterized in that: The card block (310) is connected to the bracket (300) and forms an interval area (301) between the card block (300); a guide slope (311) is formed on the outer side of the card block (310); the top of the card block (310) is provided with an abutment part (313) that cooperates with the top edge (116) of the card interface (115); a baffle (314) that cooperates with the inner sidewall (101) of the sheet metal shell (100) is provided on the side of the abutment part (313) near the middle of the bracket (300).

8. The energy storage power supply sheet metal battery compartment according to claim 7, characterized in that: The guide slope (311) is provided with a number of recesses (312).

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