Battery module hoisting structure and battery

Abstract

The utility model relates to the technical field of batteries, and discloses a battery module hoisting structure and a battery, and the battery module hoisting structure comprises a belt body which surrounds a circle to form a restraining area suitable for restraining a battery module; one of the hoisting part and the lap joint part is arranged at the head end of the belt body, the other one is arranged at the tail end of the belt body, the lap joint part and the hoisting part are at least partially overlapped, and the overlapping area of the lap joint part and the hoisting part is fixedly connected; the hoisting part is provided with a hoisting hole, and the projection of the lap joint part towards the hoisting part is not overlapped with the hoisting hole. According to the battery module hoisting structure provided by the utility model, the battery module can be conveniently hoisted by properly extending the hoisting part and forming the hoisting hole while the belt body surrounds the battery module for a circle to play a binding role, the structural form is simple, no hoisting part needs to be additionally arranged, and the cost is reduced. Therefore, the binding belt which plays a role in restraining the battery module is reasonably utilized, and the double functions of restraining and hoisting are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a battery module hoisting structure and a battery. Background Art

[0002] After the battery module is assembled, it is heavy and inconvenient to circulate. Taking the battery module of a soft-pack electric motorcycle as an example, the battery module of a soft-pack electric motorcycle is usually designed with a steel belt to restrain the expansion of the battery module due to the need to restrain the expansion of the battery cell. However, the conventional steel belt only restrains the battery module by wrapping around it for one week, and the battery module has no lifting structure and needs to be moved manually, which is time-consuming, labor-intensive and inefficient. Utility Model Content

[0003] In view of this, the utility model provides a battery module hoisting structure and a battery to solve the problem that the battery module has no hoisting structure and needs to be carried manually.

[0004] In a first aspect, the utility model provides a battery module hoisting structure, comprising:

[0005] The belt body is flexible and suitable for surrounding to form a restraining area for restraining the battery module;

[0006] The hoisting part and the overlapping part, one of which is arranged at the head end of the belt body and the other is arranged at the end of the belt body, and the hoisting part also includes a connecting part for fixed connection with the overlapping part; after the belt body surrounds the battery module for one circle, the overlapping part and the connecting part can overlap;

[0007] The hoisting portion is also provided with a hoisting hole, and the hoisting hole does not overlap with the connecting portion.

[0008] Beneficial effect: The battery module lifting structure provided by the embodiment of the utility model has a lifting part and an overlapping part respectively arranged at the head end and the end of the belt body, and the lifting part includes a connecting part for fixed connection with the overlapping part; after the belt body surrounds the battery module for one circle, the overlapping part and the connecting part can be overlapped; the lifting part is provided with a lifting hole, and the lifting hole and the connecting part; thereby, while the belt body can realize a restraining effect by surrounding the battery module for one circle, the battery module can be conveniently lifted by appropriately extending the lifting part and providing the lifting hole, and the structural form is simple, without the need for additional lifting components, thereby rationally utilizing the straps that restrain the battery module to realize the dual functions of restraint and lifting, and solving the problem of heavy weight and difficult handling of the module.

[0009] In an optional embodiment, the hanging portion and the overlapping portion are both integrally formed with the belt body.

[0010] Beneficial effect: By forming the lifting part and the overlapping part into one piece with the belt body, it is convenient for processing and manufacturing, and there is no need to set up additional connecting parts. Only by bending the local area of ​​the belt, the overlapping area of ​​the overlapping part and the lifting part can be fixed, and the extended edge of the lifting part can be reserved, which facilitates the opening of lifting holes on the extended edge. Through lifting, the turnover needs of the soft-pack battery cell module in the production process can be met.

[0011] In an optional embodiment, a bending portion is formed between the hanging portion and the belt body so that the connecting surfaces of the connecting portion and the overlapping portion are not coplanar with respect to the belt body.

[0012] Beneficial effects: By forming a bending portion between the hoisting portion and the belt body, the connection surface of the connecting portion and the overlapping portion is not coplanar with the belt body, so that after the connecting portion and the overlapping portion are overlapped and fixed, the overlapping portion can be prevented from protruding toward the battery module, and the local extrusion and deformation of the battery module when the hoisting structure is tightly bound can be avoided; it can facilitate the arrangement of the overlapping area of ​​the overlapping portion and the hoisting portion, and avoid occupying the space of the battery module. In an optional embodiment, the hoisting portion is recessed relative to the belt body to form an avoidance portion, and the side of the avoidance portion close to the bending portion forms a limiting portion, which is suitable for limiting the end of the overlapping portion away from the belt body.

[0013] Beneficial effect: By bending the connection part between the hoisting part and the belt body, a bending part is formed between the hoisting part and the belt body, so that the hoisting part can form an avoidance part relative to the belt body, and the overlapping part is further arranged in the avoidance part, and a limiting part is formed to limit the end of the overlapping part away from the belt body, so that when the overlapping part and the hoisting part are assembled, the overlapping part can be quickly positioned, and at the same time, pre-positioning is provided for welding of the overlapping area of ​​the overlapping part and the hoisting part, so as to ensure the accuracy of the matching position of the overlapping part and the hoisting part. It can also be ensured that the projection of the overlapping part toward the hoisting part does not overlap with the hoisting hole, so as to avoid blocking the hoisting hole.

[0014] In an optional implementation, along a direction perpendicular to the plane where the hanging portion is located, the depth of the avoidance portion is greater than or equal to the thickness of the overlapping portion.

[0015] Beneficial effect: By making the depth of the avoidance portion greater than or equal to the thickness of the overlapping portion in a direction perpendicular to the plane where the lifting portion is located, it is convenient to accommodate the overlapping portion in the avoidance portion, avoid the overlapping portion from bulging toward the battery module, avoid squeezing the battery module, and prevent the battery module from being damaged.

[0016] In an optional embodiment, the lower edge of the lifting hole is higher than the constraint area in the height direction.

[0017] Beneficial effect: By making the lower edge of the lifting hole higher than the constraint area in the height direction, it is possible to ensure that the lifting hole is located above the battery module. During the lifting process, it will not interfere with the battery module, and there is no need to reserve additional space for the layout of the lifting parts in the battery module area, and the structural space of the battery module is not occupied, thereby improving space utilization.

[0018] In an optional embodiment, the overlapping area of ​​the lap joint and the hanging portion is fixed by welding.

[0019] Beneficial effect: By adopting welding connection, the structural strength of the overlapping area of ​​the lap joint and the lifting part can be ensured, and there is no need to set up additional fixing elements. The structure is simple, occupies less space, and avoids unnecessary extrusion of the battery module.

[0020] In a second aspect, the utility model further provides a battery, comprising:

[0021] Battery modules; and

[0022] Such as the battery module lifting structure mentioned above.

[0023] In an optional embodiment, at least two battery module hoisting structures are arranged around the outside of the battery module, and the hoisting holes of the at least two battery module hoisting structures are located relatively above the battery module in the height direction.

[0024] In an optional embodiment, along a direction perpendicular to the plane where the lifting portion is located, the lifting holes of at least two battery module lifting structures are respectively located on opposite sides of the battery module, and the projections of at least two battery module lifting structures do not overlap, and the projections of the lifting holes of at least two battery module lifting structures do not overlap.

[0025] Beneficial effect: By setting the two battery module hoisting structures at intervals and making the hoisting holes of the two battery module hoisting structures distributed at the diagonal corners of the battery module, it is easy to maintain balance during the hoisting process and ensure uniform force. In addition, the hoisting holes of the two battery module hoisting structures are distributed on the opposite sides of the battery module, and there is no need to set three or more hoisting holes, which saves structural parts, does not occupy the structural space of the battery module, and improves assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1This is a schematic diagram of the installation state of the battery module hoisting structure of the utility model;

[0028] Figure 2 It is a schematic diagram of the battery module hoisting structure of the utility model;

[0029] Figure 3 for Figure 2 A partial enlarged view of

[0030] Figure 4 It is a schematic diagram of one side of the belt body of the utility model provided with a hoisting part;

[0031] Description of reference numerals:

[0032] 1. Battery module; 2. Battery module lifting structure; 21. Belt body; 22. Lifting part; 23. Overlap part; 24. Lifting hole; 25. Avoidance part; 26. Limiting part; 27. Bending part; 3. Constraint area. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] The battery module is usually made up of multiple stacked cells. Taking the battery module of a soft-pack electric motorcycle as an example, the soft-pack cells can be stacked in a direction perpendicular to the large surface. After the cells are stacked, a strap is set on the periphery of the battery module to effectively deal with the expansion of the battery module. However, in the related art, the strap only plays a restraining role by surrounding the battery module for one week. When the battery module is hoisted and transferred, the strap is not convenient to grasp, and since the battery module has no other hoisting structure, it usually needs to be carried manually, which is time-consuming, labor-intensive and inefficient.

[0038] The battery module hoisting structure 2 provided in the embodiment of the utility model can facilitate the hoisting and transfer of the battery module by adjusting the structural form of the strap, while satisfying the binding effect of surrounding the battery module.

[0039] Combine the following Figures 1 to 4 , describing an embodiment of the utility model.

[0040] According to an embodiment of the present utility model, on the one hand, a battery module hoisting structure 2 is provided, comprising:

[0041] The belt body 21 is flexible and is suitable for surrounding to form a restraining area 3 for restraining the battery module 1;

[0042] The hanging part 22 and the overlapping part 23, one of which is arranged at the head end of the belt body 21, and the other is arranged at the end of the belt body 21, and the hanging part 22 includes a connecting part 221 for fixed connection with the overlapping part 23; after the belt body surrounds the battery module 1 for one circle, the overlapping part 23 can overlap with the connecting part 221;

[0043] The hanging portion 22 is further provided with a hanging hole 24 , and the hanging hole 24 does not overlap with the connecting portion 221 .

[0044] The belt body 21 can be made of metal material, such as stainless steel or iron. In addition, the belt body 21 can also be made of hard plastic, or woven from nylon.

[0045] The belt body 21 surrounds the battery module 1 for one cycle and can restrain the battery module 1 by being closely attached to the battery module 1. The area enclosed by the belt body 21 after one cycle is defined as the restraint area 3, and the battery module 1 is disposed in the restraint area 3.

[0046] Combination Figure 2As shown, the head end of the belt body 21 is provided with a hanging portion 22, and the end of the belt body 21 is provided with a lap portion 23. Alternatively, the head end of the belt body 21 is provided with a lap portion 23, and the end of the belt body 21 is provided with a hanging portion 22.

[0047] The overlapping portion 23 and the hanging portion 22 at least partially overlap, and the overlapping area of ​​the overlapping portion 23 and the hanging portion 22 are fixedly connected, which can ensure the structural stability of the belt body 21 and avoid loosening.

[0048] Outside the overlapping area between the overlapping portion 23 and the hanging portion 22 , the hanging portion 22 further forms an extended edge, and the extended edge does not overlap with the overlapping portion 23 .

[0049] Furthermore, by opening a lifting hole 24 on the extended edge, since the extended edge does not overlap with the overlapping portion 23, the projection of the overlapping portion 23 toward the lifting portion 22 does not overlap with the lifting hole 24, thereby facilitating the lifting tool to pass into the lifting hole 24 and avoiding interference with the overlapping portion 23, thereby facilitating the lifting of the battery module lifting structure 2.

[0050] In this embodiment, the overlapping area of ​​the lap joint 23 and the hoisting part 22 is located at one of the top corners of the battery module hoisting structure 2, specifically, at a top corner at an upper position along the gravity direction, so that the hoisting part 22 can be extended upward along the gravity direction to form an extended edge, which is convenient for the force during the hoisting process.

[0051] The battery module lifting structure 2 provided by the embodiment of the utility model is characterized in that a lifting part 22 and an overlapping part 23 are respectively provided at the head end and the tail end of the belt body 21, and the lifting part 22 includes a connecting part 221 for fixed connection with the overlapping part 23; after the belt body surrounds the battery module 1 for one circle, the overlapping part 23 can be overlapped with the connecting part 221; the lifting part 22 is provided with a lifting hole 24, and the lifting hole 24 and the connecting part 221 do not overlap; thereby, the belt body 21 can realize a restraining effect by surrounding the battery module for one circle, and at the same time, the lifting part 22 is appropriately extended and the lifting hole 24 is provided, so that the battery module can be conveniently lifted. The structural form is simple, and no additional lifting components are required, so that the straps that restrain the battery module are reasonably utilized to realize the dual functions of restraint and lifting, and solve the problem of heavy weight and difficult handling of the module.

[0052] Additionally, the battery module lifting structure 2 of the present embodiment can extend one of the lap joint 23 and the lifting portion 22 that form the overlapping area on the basis of the conventional strap that constrains the battery module, leaving an extended edge on which the lifting hole 24 can be set, thereby facilitating the arrangement of the lifting hole 24 and achieving the dual functions of restraint and lifting without increasing structural materials and at a low cost.

[0053] Since the belt body 21 is constructed in a belt shape, in order to facilitate force bearing, a side area of ​​the belt body 21 corresponding to the side wall of the battery module extends upward to form a lifting portion 22, so that the force direction during the lifting process is parallel to the plane where the lifting portion 22 is located, thereby avoiding the lifting portion 22 from breaking during the force bearing process.

[0054] In this embodiment, the plane where the hanging portion 22 is located is parallel to the direction of gravity.

[0055] In some embodiments, in combination Figure 2 As shown, the hanging portion 22 and the overlapping portion 23 are both integrally formed with the belt body 21 .

[0056] By forming the lifting portion 22 and the overlapping portion 23 integrally with the belt body 21, it is convenient to process and manufacture without setting additional connecting parts. Only by bending the local area of ​​the belt, the overlapping area of ​​the overlapping portion 23 and the lifting portion 22 can be fixed, and the extended edge of the lifting portion 22 can be reserved, so that the lifting hole 24 can be opened on the extended edge. Through lifting, the turnover demand of the soft-pack battery cell module in the production process can be met.

[0057] In some embodiments, in combination Figure 3 , Figure 4 As shown, a bending portion 27 is formed between the hanging portion 22 and the belt body 21 so that the connection surface of the connecting portion 221 and the overlapping portion 23 is not coplanar with respect to the belt body 21 .

[0058] A bending portion 27 is formed between the lifting portion 22 and the belt body 21 so that the connecting surfaces of the connecting portion 221 and the overlapping portion 23 are not coplanar with the belt body 21. Thus, after the connecting portion 221 and the overlapping portion 23 are overlapped and fixed, the overlapping portion 23 can be prevented from protruding toward the battery module 1, thereby preventing the battery module 1 from being locally squeezed and deformed when the lifting structure is in a tight state. The arrangement of the overlapping area between the overlapping portion 23 and the lifting portion 22 can be facilitated to avoid encroaching on the space of the battery module 1.

[0059] In some embodiments, in combination Figure 4 As shown, the hanging portion 22 is recessed relative to the belt body 21 to form an escape portion 25 , and a side of the escape portion 25 close to the bending portion 27 forms a limiting portion 26 , which is suitable for limiting the end of the overlapping portion 23 away from the belt body 21 .

[0060] By bending the connection part between the hanging part 22 and the belt body 21, a bending part 27 is formed between the hanging part 22 and the belt body 21, so that the hanging part 22 can form an avoidance part 25 relative to the belt body 21, and the overlapping part 23 is further arranged in the avoidance part 25, and the end of the overlapping part 23 away from the belt body 21 is limited by forming a limiting part 26, so that when the overlapping part 23 and the hanging part 22 are assembled, the overlapping part 23 can be quickly positioned, and at the same time, the welding of the overlapping area of ​​the overlapping part 23 and the hanging part 22 is provided with a pre-positioning, so as to ensure the accuracy of the matching position of the overlapping part 23 and the hanging part 22. It can also be ensured that the projection of the overlapping part 23 toward the hanging part 22 does not overlap with the hanging hole 24, so as to avoid blocking the hanging hole 24.

[0061] In this embodiment, the end of the overlapping portion 23 away from the belt body 21 is suitable for abutting against the limiting portion 26 .

[0062] In some embodiments, in combination Figure 3 As shown, along the direction perpendicular to the plane where the hanging portion 22 is located, the depth of the avoiding portion 25 is greater than or equal to the thickness of the overlapping portion 23.

[0063] Along the direction perpendicular to the plane where the lifting portion 22 is located, by making the depth of the avoidance portion 25 greater than or equal to the thickness of the overlapping portion 23, it is convenient to accommodate the overlapping portion 23 in the avoidance portion 25, thereby avoiding the overlapping portion 23 from bulging toward the battery module, avoiding squeezing of the battery module, and preventing damage to the battery module.

[0064] In this embodiment, along the direction perpendicular to the plane where the hanging portion 22 is located, the depth of the avoidance portion 25 is equal to the thickness of the overlapping portion 23. This ensures that the force on the battery module in the contact area with the overlapping portion 23 is balanced, avoiding squeezing of the battery module.

[0065] In some embodiments, in combination Figure 3 As shown, the lower edge of the lifting hole 24 is higher than the restrained area 3 in the height direction.

[0066] By making the lower edge of the lifting hole 24 higher than the constraint area 3 in the height direction, it is possible to ensure that the lifting hole 24 is located above the battery module. During the lifting process, it will not interfere with the battery module, and there is no need to reserve additional space for the arrangement of the lifting parts in the battery module area, and the structural space of the battery module is not occupied, thereby improving space utilization.

[0067] In some embodiments, the overlapping area of ​​the lap portion 23 and the hanging portion 22 is welded and fixed.

[0068] By adopting welding connection, the structural strength of the overlapping area of ​​the lap joint 23 and the hanging part 22 can be ensured without setting additional fixing elements. The structure is simple, occupies less space, and avoids unnecessary squeezing of the battery module.

[0069] According to an embodiment of the present utility model, on the other hand, a battery is provided, comprising:

[0070] A battery module 1; and

[0071] Such as the battery module lifting structure 2 mentioned above.

[0072] In some embodiments, in combination Figure 1 As shown, at least two battery module hoisting structures 2 are arranged around the outside of the battery module 1 , and the hoisting holes 24 of the at least two battery module hoisting structures 2 are located relatively above the battery module 1 in the height direction.

[0073] In some embodiments, in combination Figure 1 As shown, along a direction perpendicular to the plane where the lifting portion 22 is located, the lifting holes 24 of at least two battery module lifting structures 2 are respectively located on opposite sides of the battery module 1, and the projections of at least two battery module lifting structures 2 do not overlap, and the projections of at least two battery module lifting structures 2 do not overlap.

[0074] In this embodiment, the battery module 1 is surrounded by two battery module hoisting structures 2, which are respectively located on both sides of the battery module along the width direction. By arranging the two battery module hoisting structures 2 at intervals and distributing the hoisting holes 24 of the two battery module hoisting structures 2 at the diagonal corners of the battery module, it is convenient to maintain balance during the hoisting process and ensure uniform force. In addition, the hoisting holes 24 of the two battery module hoisting structures 2 are distributed on the opposite sides of the battery module, and there is no need to set three or more hoisting holes, which saves structural parts, does not occupy the structural space of the battery module, and improves assembly efficiency.

[0075] Obviously, the above embodiments are only examples for clear explanation, and are not intended to limit the implementation methods. Although the embodiments of the present utility model are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present utility model, and such modifications and variations are all within the scope defined by the present utility model.

Claims

1. A battery module hoisting structure, characterized in that: include: The belt body (21) is flexible and is suitable for surrounding to form a restraining area (3) for restraining the battery module (1); A hanging part (22) and an overlapping part (23), one of which is arranged at the head end of the belt body (21) and the other is arranged at the end of the belt body (21), the hanging part (22) comprises a connecting part (221) for fixedly connecting with the overlapping part (23); after the belt body surrounds the battery module (1) for one circle, the overlapping part (23) and the connecting part (221) can overlap; The hoisting portion (22) is also provided with a hoisting hole (24), and the hoisting hole (24) does not overlap with the connecting portion (221).

2. The battery module hoisting structure according to claim 1, characterized in that: The hoisting portion (22) and the overlapping portion (23) are both integrally formed with the belt body (21).

3. The battery module hoisting structure according to claim 1, characterized in that: A bending portion (27) is formed between the hanging portion (22) and the belt body (21), so that the connection surfaces of the connection portion (221) and the overlapping portion (23) are not coplanar with respect to the belt body (21).

4. The battery module hoisting structure according to claim 3, characterized in that: The hoisting portion (22) is recessed relative to the belt body (21) to form an avoidance portion (25), and a limiting portion (26) is formed on a side of the avoidance portion (25) close to the bending portion (27). The limiting portion (26) is suitable for limiting the end of the overlapping portion (23) away from the belt body (21).

5. The battery module hoisting structure according to claim 4, characterized in that: Along a direction perpendicular to the plane where the hanging portion (22) is located, the depth of the avoidance portion (25) is greater than or equal to the thickness of the overlapping portion (23).

6. The battery module hoisting structure according to any one of claims 1 to 5, characterized in that: The lower edge of the lifting hole (24) is higher than the restrained area (3) in the height direction.

7. The battery module hoisting structure according to any one of claims 1 to 5, characterized in that: The overlapping area of ​​the overlapping portion (23) and the hanging portion (22) is fixed by welding.

8. A battery, characterized in that: include: A battery module (1); and A battery module lifting structure as described in any one of claims 1 to 7 above.

9. The battery according to claim 8, characterized in that At least two battery module hoisting structures are arranged around the outside of the battery module (1), and the hoisting holes (24) of the at least two battery module hoisting structures are both located relatively above the battery module (1) in the height direction.

10. The battery according to claim 9, characterized in that Along a direction perpendicular to the plane where the lifting portion (22) is located, at least two of the lifting holes (24) of the battery module lifting structures are respectively located on opposite sides of the battery module (1), and the projections of at least two of the battery module lifting structures do not overlap, and the projections of at least two of the lifting holes (24) of the battery module lifting structures do not overlap.

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