Battery pack shell

Abstract

The utility model relates to the technical field of battery packs, and discloses a battery pack shell which comprises a shell body, the two sets of handles are externally arranged on the two sides of the top of the shell correspondingly, the tops of the two sets of handles incline towards the outer side of the shell in the horizontal direction, and through grooves allowing fingers to stretch into are formed in the two sets of handles correspondingly; the two sets of positioning structures are arranged and externally arranged on the two sides of the bottom of the shell correspondingly, and the positioning structures correspond to the handles one to one; when two battery packs are stacked, the positioning structure of the battery pack on the upper layer can be inserted into the through groove of the battery pack on the lower layer, and two adjacent battery packs are limited to move in the X-axis direction and the Y-axis direction. The battery pack has the advantages of being simple in structure, easy to stack and capable of reducing internal space occupation of the battery pack.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, and in particular to a battery pack shell. Background Technology

[0002] To improve the ease of battery pack stacking and handling, traditional battery pack casings typically feature lifting handles and independent positioning devices. However, this design increases the production cost of the battery pack casing and reduces the efficiency of battery pack stacking and handling in actual operation.

[0003] To address this, existing technology proposes an improved battery pack structure with lifting handles on both sides of the top and positioning slots on both sides of the bottom corresponding to the handles. During battery pack stacking, the handles of the upper battery pack can be directly inserted into the positioning slots of the lower battery pack, allowing the handles to serve both as handling aids and as guides to assist in accurate and stable stacking. While this design simplifies the structure and improves stacking efficiency through the cooperation of the positioning slots and handles, the positioning slots inevitably occupy internal space within the battery pack, reducing the area available for accommodating battery cells or other components. Furthermore, to accommodate this design with its special structure, the production of the battery pack casing requires specialized mold making, which not only increases the initial mold development cost but may also limit production flexibility and the speed of response to market changes. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a battery pack shell that is simple in structure, easy to stack, and can reduce the space occupied inside the battery pack.

[0005] The technical solution adopted by this utility model to solve its technical problem is to provide a battery pack shell, comprising:

[0006] case;

[0007] The handle has two sets, which are respectively placed on both sides of the top of the housing. The tops of the two sets of handles are inclined to the outside of the housing in the horizontal direction, and both sets of handles are provided with through grooves for fingers to insert.

[0008] The positioning structure has two sets, which are respectively placed on both sides of the bottom of the housing, and the positioning structure corresponds to the handle one by one; when two battery packs are stacked, the positioning structure of the upper battery pack can be inserted into the through slot of the lower battery pack and restrict the displacement of the two adjacent battery packs along the X-axis and Y-axis.

[0009] Furthermore, the handle and the positioning structure are detachably connected to the housing.

[0010] Furthermore, the ends of the two sets of positioning structures away from the housing are respectively inclined horizontally outward from the housing, and the inclination angle of the positioning structure is equal to the inclination angle of the handle.

[0011] Furthermore, when the positioning structure and the handle are tilted, they each form a 35° angle with the vertical line.

[0012] Furthermore, the top of the housing is symmetrically provided with first mounting surfaces on both sides, and the two first mounting surfaces are inclined inward in the horizontal direction towards the inside of the housing on the side away from the bottom of the housing, and the two sets of handles are respectively perpendicularly connected to the two first mounting surfaces.

[0013] Furthermore, the handle includes a first fixing part, one end of which is detachably vertically connected to the first mounting surface by a fastener, and the other end extends away from the first mounting surface.

[0014] Furthermore, the first fixing part is provided in two sets, arranged along the length direction of the first mounting surface, and the handle also includes a hand-held part that is perpendicularly connected to the extension ends of the two sets of the first fixing parts respectively, and the hand-held part cooperates with the first fixing part to form the through groove.

[0015] Furthermore, the bottom of the housing is provided with symmetrical second mounting surfaces on both sides, the second mounting surfaces are arranged in a mirror image of the first mounting surfaces, and the two sets of positioning structures are respectively perpendicularly connected to the two second mounting surfaces.

[0016] Furthermore, the positioning structure includes a second fixing part, which is attached to the second mounting surface and is detachably connected to the second mounting surface by fasteners.

[0017] Furthermore, the second fixing part is provided in two sets, arranged along the length direction of the second mounting surface, and the positioning structure also includes positioning parts that are respectively connected to the two sets of the second fixing parts, and the positioning parts protrude in the direction away from the second mounting surface.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] 1. In this utility model, handles are externally mounted on both sides of the top of the housing, and positioning structures corresponding to the handles are externally mounted on both sides of the bottom. The tops of the two sets of handles are inclined outwards along the horizontal direction, and both sets of handles are provided with through slots for fingers to insert. When two battery packs are stacked, the positioning structure of the upper battery pack can be inserted into the through slot of the lower battery pack, and the displacement of the two adjacent battery packs along the X and Y axes is restricted. This design reduces the space occupied inside the battery pack, and the V-shaped guide channel formed by the inclined arrangement of the handles allows the upper battery pack to automatically adjust its position through the inclined surface during descent, achieving precise docking.

[0020] 2. In this utility model, the handle and the positioning structure are detachably connected to the housing. This design not only allows for independent replacement of the handle and the positioning structure, but also effectively avoids the high mold development costs and long production cycles caused by the need for separate molds due to the integration of special structures, thereby improving the maintainability and manufacturing flexibility of the product.

[0021] 3. In this invention, the ends of the two positioning structures furthest from the housing are inclined horizontally outwards from the housing, and the inclination angle of the positioning structures is equal to the inclination angle of the handle. This design increases the effective contact volume when the positioning structures are inserted into the through slot, thereby significantly improving the stability of the limiting and the reliability of the stacking process, further enhancing the accuracy and safety of battery pack stacking. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of a battery pack shell according to the present invention.

[0023] Figure 2 This is an exploded view of the battery pack casing of this utility model.

[0024] Figure 3 This is a schematic diagram of the handle structure in this utility model.

[0025] Figure 4 This is a schematic diagram of the positioning structure in this utility model.

[0026] Figure 5 This is a schematic diagram showing the state when multiple battery packs are stacked.

[0027] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0028] 100, housing; 110, first mounting surface; 120, second mounting surface; 200, handle; 201, through groove; 210, first fixing part; 211, reinforcing rib; 220, hand grip; 300, positioning structure; 310, second fixing part; 320, positioning part; 400, fastener. Detailed Implementation

[0029] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0031] Furthermore, in this utility model, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0034] like Figures 1 to 5 As shown, in this embodiment, a battery pack casing includes:

[0035] Casing 100;

[0036] The handle 200 has two sets, which are respectively placed on both sides of the top of the housing 100. The tops of the two sets of handles 200 are inclined outward from the housing 100 in the horizontal direction, and both sets of handles 200 are provided with through grooves 201 for fingers to insert.

[0037] The positioning structure 300 has two sets, respectively externally positioned on both sides of the bottom of the housing 100, and each positioning structure 300 corresponds one-to-one with the handle 200. When two battery packs are stacked, the positioning structure 300 of the upper battery pack can be inserted into the through slot 201 of the lower battery pack, restricting the displacement of the two adjacent battery packs along the X and Y axes. This design reduces the space occupied inside the battery packs and, through the inclined arrangement of the handle 200, forms a V-shaped guide channel, allowing the upper battery pack to automatically adjust its position during descent, achieving precise docking.

[0038] like Figures 1 to 5 As shown, in this embodiment, the housing 100 is rectangular and hollow, primarily used to house the battery cells. The top of the housing 100 has two symmetrical first mounting surfaces 110 on either side. The side of each first mounting surface 110 furthest from the bottom of the housing 100 slopes horizontally inwards towards the inside of the housing 100, for mounting the handle 200. This design allows the handle 200 to naturally tilt outwards after installation, improving the ease of installation.

[0039] Preferably, in this embodiment, the first mounting surface 110 is rectangular, and its tilt angle matches the overall tilt angle of the handle 200. This design ensures the accuracy and consistency of the handle 200's mounting position, reduces assembly errors, and improves the stability and aesthetics of the overall structure.

[0040] In this embodiment, the bottom sides of the housing 100 are provided with second mounting surfaces 120 that are symmetrically arranged. These second mounting surfaces 120 are mirror images of the first mounting surface 110 and are used for mounting the positioning structure 300. This design not only allows the positioning structure 300 to naturally tilt outward after installation, improving the ease of installation, but also ensures a good connection between it and the handle 200 through slot 201 of the upper battery pack, significantly improving the stability of stacking and assembly efficiency.

[0041] Preferably, in this embodiment, the second mounting surface 120 is rectangular, with an area equal to that of the first mounting surface 110, and the tilt angle of the second mounting surface 120 is adapted to the tilt angle of the positioning structure 300. This design not only ensures that the positioning structure 300 maintains a stable tilt posture after installation, but also makes the upper and lower structures of the housing 100 highly symmetrical and consistent, improving the matching accuracy and interchangeability between the handle 200 and the positioning structure 300, which is beneficial for modular production and standardized assembly.

[0042] To facilitate the handling and stacking of battery packs, in this embodiment, handles 200 are externally mounted on both sides of the top of the housing 100, and positioning structures 300 are externally mounted on both sides of the bottom. Each handle 200 has a through slot 201, and the handles 200 of adjacent battery packs can interlock with the positioning structures 300. Specifically, when two battery packs are stacked vertically, the positioning structure 300 of the upper battery pack can be inserted into the through slot 201 of the lower battery pack, restricting the displacement of adjacent battery packs along the X and Y axes. Operators can handle the battery packs by lifting them with the handles 200, and during stacking, the positioning structures 300 and handles 200 are used for positioning. This design achieves integrated battery pack handling and stacking functions, reducing the use of 320 independent positioning parts in the traditional structure, simplifying the overall structure, and reducing the number of parts and manufacturing costs. On the other hand, the external arrangement not only reduces the space occupied inside the housing 100, allowing the housing 100 to retain more space for accommodating battery cells and other key components, but also reduces the mold development costs caused by the special structure.

[0043] In this embodiment, the handle 200 and the positioning structure 300 are detachably connected to the housing 100 via fasteners 400 or snap-fit ​​mechanisms. This design not only enables convenient installation and disassembly of the handle 200, the positioning structure 300, and the housing 100, reducing maintenance costs, but also avoids the high mold development costs and long production cycles associated with the need for separate molds due to the integration of special structures, thereby improving the maintainability and manufacturing flexibility of the product.

[0044] like Figures 1 to 3 As shown, in this embodiment, the tops of the two sets of handles 200 are inclined outwards from the housing 100 along the horizontal direction, and both sets of handles 200 are provided with through slots 201 for fingers to insert. The through slots 201 serve both as a grip for the operator and as a limiting fit structure during stacking, enabling the handles 200 to perform both handling and positioning functions. This effectively reduces the need for independent positioning devices in traditional structures, lowering the number of parts and production costs. The inclined arrangement of the handles 200 not only ensures that the positioning structure 300 can be smoothly inserted into the through slots 201, but also forms a V-shaped guide channel through the cooperation of the two sets of handles 200. This allows for automatic correction of positional deviations during battery pack stacking, ensuring rapid and accurate docking between upper and lower battery packs, thus improving stacking efficiency and stability.

[0045] In this embodiment, the handle 200 forms a 35° angle with the vertical line when tilted. This design avoids wasting space due to excessive steepness and prevents excessive flatness from affecting the stacking and limiting effect. It helps to achieve the best balance between function and structure within a limited external space, while also improving the overall appearance and industrial aesthetics.

[0046] In this embodiment, the two sets of handles 200 are perpendicularly connected to the two first mounting surfaces 110, respectively. This connection method allows the handles 200 to directly transfer external forces to the mounting surfaces when subjected to force, reducing bending moment and thus improving the structural strength and fatigue resistance of the connection.

[0047] In this embodiment, the handle 200 includes a first fixing part 210, one end of which is detachably vertically connected to the first mounting surface 110 via a fastener 400, and the other end extends away from the first mounting surface 110. This design ensures the stability of the connection between the handle 200 and the housing 100.

[0048] Preferably, in this embodiment, the first fixing part 210 has a rectangular connecting seat and an extension side. The extension side is vertically disposed on the connecting seat, and the connecting seat has a through hole for the fastener 400 to pass through. Triangular reinforcing ribs 211 are also provided on both sides of the extension side. One side of each reinforcing rib 211 is connected to the connecting seat, and the other side is connected to the extension side. This design effectively improves the overall load-bearing capacity of the handle 200, ensuring good connection stability under frequent handling or heavy load conditions, and preventing loosening or detachment.

[0049] In this embodiment, two sets of first fixing parts 210 are arranged in a straight line along the length of the first mounting surface 110. The handle 200 also includes a hand-held part 220 that is perpendicularly connected to the extension ends of the two sets of first fixing parts 210, and the hand-held part 220 cooperates with the first fixing parts 210 to form a through groove 201 for fingers to insert. This design enables the handle 200 to form a stable frame structure, providing the operator with a spacious and ergonomic grip space.

[0050] In this embodiment, the through groove 201 is U-shaped. On the one hand, this allows the handle 200 to better adapt to positioning structures 300 of different sizes, ensuring precise docking between the upper and lower battery packs and enhancing the stability and reliability of stacking; on the other hand, it is easy to achieve through mold forming process, without complicated processing steps, reducing manufacturing difficulty and cost.

[0051] like Figure 1 , Figure 2 , Figure 4 As shown, in this embodiment, the ends of the two sets of positioning structures 300 furthest from the housing 100 are inclined horizontally outward from the housing 100, and the inclination angle of the positioning structure 300 is equal to the inclination angle of the handle 200. This design allows the positioning structure 300 to be accurately inserted into the through slot 201 on the lower battery pack handle 200, and forms effective limits in the X and Y axis directions, preventing slippage or misalignment between adjacent battery packs, and ensuring the overall stability and safety of the stacked structure.

[0052] In this embodiment, the positioning structure 300 forms a 35° angle with the vertical line after tilting. This design avoids wasting space due to excessive steepness and prevents excessive flatness from affecting the stacking and positioning effect. It helps to achieve the best balance between function and structure within a limited external space, while also improving the overall appearance and industrial aesthetics.

[0053] In this embodiment, the two sets of positioning structures 300 are perpendicularly connected to the two second mounting surfaces 120, respectively. This connection method allows the positioning structure 300 to directly transmit externally applied forces to the housing 100, avoiding stress concentration or deformation problems caused by non-perpendicular connections.

[0054] In this embodiment, the positioning structure 300 includes a second fixing part 310, which is attached to the second mounting surface 120 and detachably connected to the second mounting surface 120 by a fastener 400. This design ensures the stability of the connection between the positioning structure 300 and the housing 100.

[0055] In this embodiment, the fastener 400 is a bolt or screw.

[0056] Preferably, in this embodiment, the second fixing part 310 is L-shaped, with one side fitting against the second mounting surface 120 and the other side extending away from the second mounting surface 120.

[0057] In this embodiment, two sets of second fixing parts 310 are arranged in a straight line along the length of the second mounting surface 120. The positioning structure 300 also includes positioning parts 320 connected to the two sets of second fixing parts 310 respectively, and the positioning parts 320 protrude in a direction away from the second mounting surface 120. This design not only enhances the overall stability and load-bearing capacity of the positioning structure 300, allowing it to be smoothly inserted into the through slot 201 on the upper battery pack handle 200 during battery pack stacking, but also forms effective limiting in the X and Y axis directions. At the same time, the outward protruding design achieves good stacking limiting function without occupying the internal space of the housing 100.

[0058] Preferably, in this embodiment, the positioning part 320 is U-shaped, with its length slightly less than the width of the through groove 201, and is integrally formed with the second fixing part 310. This design ensures the strength of the positioning part 320 while reducing weight, assembly steps, and the number of parts through integral forming, thereby improving production efficiency and product consistency.

Claims

1. A battery pack casing, characterized in that, include: Casing (100); Handles (200), the handles (200) are provided in two sets, respectively placed on both sides of the top of the housing (100). The tops of the two sets of handles (200) are inclined to the outside of the housing (100) in the horizontal direction, and both sets of handles (200) are provided with through grooves (201) for fingers to insert. The positioning structure (300) has two sets, which are respectively placed on both sides of the bottom of the housing (100), and the positioning structure (300) corresponds one-to-one with the handle (200); when two battery packs are stacked, the positioning structure (300) of the upper battery pack can be inserted into the through slot (201) of the lower battery pack, and restrict the displacement of the two adjacent battery packs along the X-axis and Y-axis.

2. The battery pack casing according to claim 1, characterized in that, The handle (200) and the positioning structure (300) are detachably connected to the housing (100).

3. The battery pack casing according to claim 1, characterized in that, The two sets of positioning structures (300) are inclined horizontally outward from the housing (100) at the ends away from the housing (100), and the inclination angle of the positioning structure (300) is equal to the inclination angle of the handle (200).

4. A battery pack casing according to claim 3, characterized in that, When the positioning structure (300) and the handle (200) are tilted, they each form a 35° angle with the vertical line.

5. A battery pack casing according to claim 1, characterized in that, The top two sides of the housing (100) are symmetrically provided with first mounting surfaces (110). The two first mounting surfaces (110) are inclined in the horizontal direction toward the inside of the housing (100) on the side away from the bottom of the housing (100), and the two sets of handles (200) are respectively vertically connected to the two first mounting surfaces (110).

6. A battery pack casing according to claim 5, characterized in that, The handle (200) includes a first fixing part (210), one end of which is detachably vertically connected to the first mounting surface (110) by a fastener (400), and the other end extends away from the first mounting surface (110).

7. A battery pack casing according to claim 6, characterized in that, The first fixing part (210) is provided in two sets and arranged along the length direction of the first mounting surface (110). The handle (200) also includes a hand-held part (220) that is perpendicularly connected to the extension ends of the two sets of the first fixing parts (210), and the hand-held part (220) cooperates with the first fixing part (210) to form the through groove (201).

8. A battery pack casing according to claim 5, characterized in that, The bottom of the housing (100) is symmetrically provided with second mounting surfaces (120), which are mirror images of the first mounting surface (110). The two sets of positioning structures (300) are respectively perpendicularly connected to the two second mounting surfaces (120).

9. A battery pack casing according to claim 8, characterized in that, The positioning structure (300) includes a second fixing part (310), which is attached to the second mounting surface (120) and is detachably connected to the second mounting surface (120) by a fastener (400).

10. A battery pack casing according to claim 9, characterized in that, The second fixing part (310) is provided in two sets and arranged along the length direction of the second mounting surface (120). The positioning structure (300) also includes a positioning part (320) connected to the two sets of the second fixing parts (310) respectively. The positioning part (320) protrudes in a direction away from the second mounting surface (120).

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