Independent battery pack counterweight with adjustable density

Abstract

The utility model discloses a density-adjustable independent counter weight for a battery pack. The density-adjustable independent counter weight comprises a loading box and a partition plate assembly, a containing cavity is formed in the loading box. The partition plate assembly is arranged in the loading box and can divide the containing cavity into a plurality of balance weight cavities. And each counterweight chamber is filled with a filler. The partition plate assembly comprises a bottom plate, a plurality of side face partition plates and a plurality of surrounding partition plates which are perpendicular to one another. And a loading cavity matched with the battery pack is defined by the bottom plate, the side partition plates and the enclosure plate. According to the working condition requirements of actual installation of the battery pack, the fillers formed by mixing the metal powder, the particles and the high-molecular polymer particles with different densities are filled in the counterweight cavities, so that the counterweight module can adapt to diversified battery pack types and use working conditions; the loading box loaded with the battery pack can accurately achieve the required weight and gravity center distribution, and the phenomena of unbalance and abnormal vibration in the equipment operation process are avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the battery technical field, concretely relates to a density adjustable battery pack independent counterweight. BACKGROUND

[0002] With the development of battery technology, battery packs are increasingly widely used in various devices. However, different devices have different requirements for the weight distribution and gravity center stability of battery packs. In some application scenarios, such as electric vehicles, electric forklifts, mobile energy storage devices, etc., unreasonable counterweight of battery packs may cause imbalance of device operation, abnormal vibration and affect overall control performance.

[0003] The traditional counterweight method by mounting counterweight blocks may result in insufficient or excessive counterweight, which cannot achieve flexible distribution of weight and gravity center stability, is difficult to adapt to diversified battery pack types and use conditions, and causes imbalance of device operation, abnormal vibration and affects overall controllability and safety. UTILITY MODEL CONTENT

[0004] In order to make up for the deficiencies of the prior art, the utility model provides a density adjustable battery pack independent counterweight to solve the technical problem that the existing battery pack counterweight module is difficult to meet the needs of different working conditions.

[0005] To achieve the above purpose, the specific technical scheme of the utility model is as follows:

[0006] A density adjustable battery pack independent counterweight comprises a loading box and a partition plate assembly. The loading box has a containing cavity inside. The partition plate assembly is arranged in the loading box and can separate the containing cavity into a plurality of counterweight chambers. Each counterweight chamber is filled with a filler.

[0007] The partition plate assembly comprises a bottom plate, a plurality of side partitions and a plurality of enclosing partitions perpendicular to each other. The bottom plate, side partitions and enclosing partitions jointly form a loading chamber matched with the battery pack.

[0008] Further, the side partitions are two in total, the two side partitions are parallel to each other and are arranged in a length direction of the loading box. The top of each side partition is provided with a first cover plate between the loading box. The first counterweight chamber is formed between the side partitions, the first cover plates and the inner wall of the loading box.

[0009] Further, the enclosing partitions are two in total, the two enclosing partitions are parallel to each other and are arranged in a width direction of the loading box. The top of each enclosing partition is provided with a second cover plate between the loading box. The second counterweight chamber is formed between the enclosing partitions, the second cover plates and the inner wall of the loading box.

[0010] Further, the surrounding partition plate comprises a first partition plate and a second partition plate connected in sequence.

[0011] Further, the second partition plate is provided with a mounting slot at the bottom, and a drainage member is fixed in the mounting slot.

[0012] Further, the top of the side partition plate is provided with a fixing plate, and a plurality of mounting through holes are formed in the fixing plate.

[0013] Further, the four side walls of the loading box are divided into first side wall plates in the length direction and second side wall plates in the width direction, and the two second side wall plates are provided with connecting members.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model discloses a loading box, which comprises a loading box body, a plurality of surrounding partition plates and a bottom plate.

[0016] 2. The first weight cavity, the second weight cavity and the third weight cavity are arranged on the periphery of the battery pack, can form five-side surrounding weight for the battery pack, and make the battery pack be more firmly protected and fixed by the filler in the weight cavities. DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a distribution schematic view of the first weight cavity, the second weight cavity and the third weight cavity in the utility model;

[0019] Figure 3 It is a relative position schematic view of the surrounding partition plate and the bottom plate in the utility model;

[0020] Figure 4 It is a relative position schematic view of the first weight cavity and the third weight cavity in the utility model.

[0021] Reference signs: 1, loading box; 1-1, first side wall plate; 1-2, second side wall plate; 2, bottom plate; 3, side partition plate; 4, surrounding partition plate; 4-1, first partition plate; 4-2, second partition plate; 5, first cover plate; 6, first counterweight chamber; 7, second cover plate; 8, second counterweight chamber; 9, third counterweight chamber; 10, drainage device; 11, fixing plate; 12, hoisting hole. DETAILED DESCRIPTION

[0022] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "central", "end", "length", "outer end" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] The utility model will be further described below in combination with the drawings.

[0024] As shown in Figure 1 and 2 , a density-adjustable battery pack independent counterweight comprises a loading box 1 and a partition plate assembly. Wherein, the loading box 1 is a box structure with an open top. The inside of the loading box 1 has a containing chamber. The partition plate assembly is arranged in the loading box 1 and is used to separate the containing chamber into multiple counterweight chambers for loading counterweight fillers, so as to ensure the stable center of gravity of the battery pack installed in the device box during work.

[0025] As shown in Figure 1 , the partition plate assembly comprises a bottom plate 2, two side partition plates 3 and two surrounding partition plates 4. Wherein, the two side partition plates 3 are parallel to each other and are arranged along the length direction of the loading box 1. The top of each side partition plate 3 is provided with a first cover plate 5 between the side partition plate 3 and the loading box 1. The first cover plate 5, the side partition plate 3 and the inner wall of the loading box 1 form a first counterweight chamber 6.

[0026] The two surrounding partition plates 4 are parallel to each other and are arranged along the width direction of the loading box 1. The top of each surrounding partition plate 4 is provided with a second cover plate 7 between the surrounding partition plate 4 and the loading box 1. The second cover plate 7, the surrounding partition plate 4 and the inner wall of the loading box 1 form a second counterweight chamber 8. The bottom plate 2 is arranged between the bottom surface of the loading box 1 and is fixed around the side partition plate 3 and the surrounding partition plate 4. The bottom plate 2 and the bottom surface of the loading box 1 form a third counterweight chamber 9. The side partition plate 3, the surrounding partition plate 4 and the bottom plate 2 jointly form a loading chamber matched with the battery pack. The battery pack is installed in the loading chamber.

[0027] In the embodiment, the two side edges of the side partition plate 3 are fixed with the loading box 1 by welding. The two side edges of the surrounding partition plate 4 are fixed with the side partition plate 3 by welding. The four edges of the bottom plate 2 are fixed with the side partition plate 3 and the surrounding partition plate 4 by welding.

[0028] Further, the first cover plate 5 and the second cover plate 7 are the same structure, both including a mounting frame and a sealing plate. The mounting frame is fixed on the loading box 1 by welding. When the filling of the filler in each counterweight chamber is completed, the sealing plate is fixed in the mounting frame by welding, thereby realizing the closure of each counterweight chamber and avoiding the leakage of the filler during use.

[0029] In use, the staff fills the filler formed by mixing metal powder and particles of different densities, and polymer particles in each counterweight chamber, thereby realizing that the loading box 1 loaded with the battery pack can accurately reach the required weight and gravity distribution, avoiding the phenomenon of imbalance and abnormal vibration during equipment operation.

[0030] As shown in Figure 2 , 3 and 4, the surrounding partition plate 4 includes a first partition plate 4-1 and a second partition plate 4-2 connected in sequence. The bottom edge of the first partition plate 4-1 is welded and fixed with the bottom surface of the loading box 1. The edge of the bottom plate 2 is welded and fixed with the top edge of the first partition plate 4-1. The bottom of the second partition plate 4-2 is provided with a mounting slot. The drainage member 10 is fixed in the mounting slot. The side wall of the loading box 1 is provided with a drainage port matched with the outer end of the drainage member 10, so that when water accumulates around the battery pack, it can be drained in time through the drainage member 10.

[0031] Further, the top of the two side partition plates 3 is provided with an integrally formed fixing plate 11. The fixing plate 11 is provided with a plurality of mounting through holes. The inner ends of the corresponding bolts pass through the mounting through holes and are connected with the battery pack, ensuring that the battery pack is firmly installed.

[0032] As shown in Figure 2 , the four side walls of the loading box 1 are divided into first side wall plates 1-1 in the length direction and second side wall plates 1-2 in the width direction. The two second side wall plates 1-2 are each provided with an integrally formed connecting member. The connecting member is provided with a plurality of bolt avoiding holes and hoisting holes 12 on both sides of the bolt avoiding holes. Each bolt avoiding hole is aligned with each mounting through hole, and the hole diameter of the bolt avoiding hole is greater than that of the mounting through hole. During installation, the bolts pass through the bolt avoiding holes and are connected and fixed with the battery pack through the mounting through holes. When the assembly of the battery pack is completed, the ropes pass through the hoisting holes 12 to transfer the loading box with the battery pack to the corresponding area.

[0033] In the embodiment, the first side wall plate 1-1 and the second side wall plate 1-2 on the loading box 1 are formed by bending the plate material. The adjacent edges of the first side wall plate 1-1 and the second side wall plate 1-2 are fixed by welding.

[0034] In addition, in the embodiment, the middle part of the third counterweight chamber 9 is provided with a partition plate, so as to divide the third counterweight chamber 9 into two sub-chambers, further ensuring that the gravity center distribution of the loading box 1 loaded with the battery pack can adapt to the working environment used.

[0035] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A density-adjustable battery pack independent ballast, comprising a loading box (1); the inside of the loading box (1) has a containing chamber, characterized in that: The application also comprises a partition plate assembly, which is arranged in the loading box (1) and can divide the containing chamber into multiple counterweight chambers, and each counterweight chamber is filled with a filler; The partition plate assembly comprises a bottom plate (2), multiple side partition plates (3) and multiple surrounding partition plates (4) which are perpendicular to each other; the bottom plate (2), the side partition plates (3) and the surrounding partition plates (4) jointly form a loading chamber which is matched with the battery pack.

2. The density-adjustable battery pack independent ballast of claim 1, wherein: The two side partition plates (3) are parallel to each other and are arranged along the length direction of the loading box (1); the top of each side partition plate (3) is provided with a first cover plate (5) between the loading box (1); the side partition plate (3), the first cover plate (5) and the inner wall of the loading box (1) form a first counterweight chamber (6).

3. The density-adjustable battery pack independent ballast of claim 1, wherein: The two surrounding partition plates (4) are parallel to each other and are arranged along the width direction of the loading box (1); the top of each surrounding partition plate (4) is provided with a second cover plate (7) between the loading box (1); the surrounding partition plate (4), the second cover plate (7) and the inner wall of the loading box (1) form a second counterweight chamber (8).

4. The density-adjustable battery pack independent ballast of claim 1, wherein: The surrounding partition plate (4) comprises a first partition plate (4-1) and a second partition plate (4-2) which are connected in sequence; the bottom edge of the first partition plate (4-1) is fixed to the bottom surface of the loading box (1); the edge of the bottom plate (2) is fixed to the top edge of the first partition plate (4-1).

5. A density-adjustable battery pack independent ballast according to claim 4, characterized in that: The bottom of the second partition plate (4-2) is provided with a mounting slot; a drainage member (10) is fixed in the mounting slot; the side wall of the loading box (1) is provided with a drainage opening which is matched with the outer end of the drainage member (10).

6. The density-adjustable battery pack independent ballast of claim 1, wherein: The top of the side partition plate (3) is provided with a fixing plate (11); the fixing plate (11) is provided with multiple mounting through holes.

7. A density-adjustable battery pack independent ballast according to claim 6, characterized in that: The four side walls of the loading box (1) are divided into a first side wall plate (1-1) in the length direction and a second side wall plate (1-2) in the width direction; the two second side wall plates (1-2) are both provided with a connecting member; the connecting member is provided with multiple bolt avoiding holes which are matched with the mounting through holes, and hoisting holes (12) which are located on both sides of the bolt avoiding holes.

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