High-strength power battery with hoisting structure

Abstract

The utility model discloses a high-strength power battery with a hoisting structure. The splicing hoisting box comprises a box body, a plurality of splicing hoisting modules are arranged outside the box body, each splicing hoisting module comprises two splicing hoisting structures symmetrically arranged on the outer walls of the two ends of the box body, and each splicing hoisting structure is provided with a plurality of hoisting holes and a plurality of hoisting buckle notches. A box cover is fixed at the upper end of the box body, a plurality of reinforcing ribs are arranged at the bottom of the box cover, and a plurality of battery modules are fixed in the box body. The utility model is applied to the technical field of power batteries.

Description

Technical Field

[0001] The utility model is applied to the technical field of batteries, and particularly relates to a high-strength power battery with a hoisting structure. Background Art

[0002] With the development of new energy technologies, there are certain requirements for the miniaturization of battery volume and the light weight of the battery. The existing hoisting structures of batteries basically open hoisting holes or add lifting rings on the battery box body, which all occupy a certain size and cause waste of volume. Moreover, the existing batteries have low strength and are prone to deformation during hoisting, and collisions will occur during the operation of the vehicle body. When the collision force is too large, the batteries in the box may also be deformed and damaged. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a high-strength power battery with a hoisting structure.

[0004] The technical solution adopted by the utility model is as follows: the utility model includes a box body, and a plurality of groups of splicing hoisting modules are arranged outside the box body. Each group of splicing hoisting modules includes two splicing hoisting structures symmetrically arranged on the outer walls at both ends of the box body. Each splicing hoisting structure is provided with a plurality of hoisting holes and a plurality of hoisting buckle slots. A box cover is fixed on the upper end of the box body, and a plurality of reinforcing rib strips are arranged at the bottom of the box cover. A plurality of groups of battery modules are fixed in the box body.

[0005] Furthermore, fixed foot plates are arranged at both ends of the bottom of the box body. The splicing hoisting structure is a U-shaped groove plate. Welding foot plates are arranged on both sides of the U-shaped groove plate. The U-shaped groove plate is welded and fixed to the outer wall of the box body through the welding foot plates on both sides. The bottom of the U-shaped groove plate is welded and fixed to the welding foot plates. The hoisting holes and the hoisting buckle slots are both arranged on the end surface of the U-shaped groove plate, and the hoisting holes and the hoisting buckle slots are arranged alternately. A plurality of through holes are arranged on both sides of the U-shaped groove plate.

[0006] Further, the battery module includes two end plates. A number of battery cells are vertically stacked between the two end plates. Limiting plates are fixed between the upper ends of the two end plates at both ends. Two connecting side plates are arranged at the lower parts of the two end plates. The connecting side plates include connecting horizontal plates and connecting vertical plates perpendicularly connected to one end of the connecting horizontal plates. The two connecting horizontal plates are respectively fixed between the bottoms of the two end plates, and the ends of the two connecting horizontal plates are connected. The two connecting vertical plates are respectively fixed between the lower ends of the two end plates at both ends. The two connecting horizontal plates form a bottom support plate for the battery cells, and a heating sheet is arranged between the bottom support plate for the battery cells and the battery cells. A heat preservation cotton layer is further arranged at the lower end of the heating sheet. A wiring avoidance opening is arranged at the lower part of the end plate. Two connecting angle codes are arranged in the middle of the end plate. Mounting strip plates are arranged on the inner walls at both ends of the box body. The connecting angle codes are fixed to the mounting strip plates by bolts.

[0007] Further, a support frame plate is arranged between the middle parts of the upper ends of the two end plates. An electrical integration board is arranged on the support frame plates in several groups of battery modules. Four horizontally placed upper battery cells are arranged at one end of the electrical integration board. Partition plates are arranged between the upper battery cells. Electrical components are arranged at the other end of the electrical integration board. The electrical components are electrically connected to the electrical integration board. An antenna and a communication interface are also arranged outside the box body. Adjacent battery cells and adjacent upper battery cells are connected by aluminum sheets. Adjacent battery modules are connected by flexible copper bars.

[0008] Further, a first discharge port, a second discharge port and a charging port are also arranged on the outer side of the box body. The first discharge port, the second discharge port and the charging port are all electrically connected to the electrical integration board.

[0009] Further, mounting groove openings are arranged on both sides of the upper end of the end plate. Insulators are installed in the mounting groove openings.

[0010] The beneficial effects of the present utility model are as follows: 1. By arranging several groups of splicing and hoisting modules on the box body and welding a number of reinforcing rib strips at the bottom of the box cover, the box body structure is strengthened without occupying the box body size for hoisting the battery. At the same time, the splicing and hoisting structure also has a variety of hoisting methods; 2. A power battery with a high-strength hoisting structure is provided for the field of power batteries, providing diversity for the vehicle body strength and battery installation. Description of the Drawings

[0011] Figure 1 is a structural schematic diagram of the present utility model;

[0012] Figure 2 is an exploded schematic diagram of the present utility model;

[0013] Figure 3It is the side view of the present utility model;

[0014] Figure 4 is Figure 3 the sectional view taken along A-A in

[0015] Figure 5 the explosion schematic diagram of the battery module;

[0016] Figure 6 the structural schematic diagram of the connection and hoisting structure;

[0017] Figure 7 the structural schematic diagram of the box cover. Specific embodiments

[0018] As Figures 1 to 7 shown, in this embodiment, the present utility model includes a box body 1. Three groups of splicing and hoisting modules are arranged in an array outside the box body 1. Each group of the splicing and hoisting modules includes two splicing and hoisting structures 2 symmetrically arranged on the outer walls at both ends of the box body 1. The splicing and hoisting structures 2 are each provided with a plurality of hoisting holes 3 and a plurality of hoisting buckle slots 4. The splicing and hoisting structures 2 can be adapted to different hoisting tools, and can also play a strengthening role without occupying dimensions. A box cover 5 is fixed to the upper end of the box body 1. A plurality of reinforcing ribs 6 are welded to the bottom of the box cover 5, strengthening the structure of the box body 1. A plurality of groups of battery modules 7 are fixed inside the box body 1.

[0019] In this embodiment, fixed foot plates 8 are arranged at both ends of the bottom of the box body 1. The splicing and hoisting structure 2 is a U-shaped groove plate 21. Welding foot plates 22 are arranged on both sides of the U-shaped groove plate 21. The U-shaped groove plate 21 is welded and fixed to the outer wall of the box body 1 through the welding foot plates 22 on both sides. The bottom of the U-shaped groove plate 21 is welded and fixed to the welding foot plates 22. The hoisting holes 3 and the hoisting buckle slots 4 are both arranged on the end faces of the U-shaped groove plate 21, and the hoisting holes 3 and the hoisting buckle slots 4 are arranged alternately. A plurality of through holes 23 are provided on both sides of the U-shaped groove plate 21, and the through holes 23 are used to reduce the weight of the entire U-shaped groove plate 21.

[0020] In this embodiment, the battery module 7 includes two end plates 71. Between the two end plates 71, a number of battery cells 72 are stacked vertically. Between the upper ends of the two end plates 71, limiting plates 73 are fixed at both ends. At the lower part of the two end plates 71, there are two connecting side plates. The connecting side plates include a connecting cross plate 74 and a connecting vertical plate 75 vertically connected to one end of the connecting cross plate 74. The two connecting cross plates 74 are respectively fixed between the bottoms of the two end plates 71, and the ends of the two connecting cross plates 74 are connected. The two connecting vertical plates 75 are respectively fixed between the lower ends of the two end plates 71. The two connecting cross plates 74 form a bottom support plate for the battery cells, and a heating sheet is arranged between the bottom support plate for the battery cells and the battery cells 72. A heat preservation cotton layer is further arranged at the lower end of the heating sheet. The bottom support plate for the battery cells has no gaps to prevent heat dissipation when the battery cells 72 in the battery module 7 are heated by the heating sheet. At the lower part of the end plate 71, there is a wiring avoidance opening 76 for facilitating the connection wires of the heating sheet to pass through. At the middle part of the end plate 71, there are two connecting angle codes 77. At the inner walls of both ends of the box body 1, there are installation strip plates 78. The connecting angle codes 77 are fixed to the installation strip plates 78 by bolts. At this time, the bottom support plate for the battery cells is in contact with the bottom of the box body 1. This design facilitates the disassembly and assembly of the whole battery module 7.

[0021] In this embodiment, a support frame plate 79 is arranged between the middle parts of the upper ends of the two end plates 71. An electrical integration board 710 is arranged on the support frame plates 79 in several groups of battery modules 7. At one end of the electrical integration board 710, there are four horizontally placed upper battery cells 711. The horizontally placed upper battery cells 711 can not only reduce the length and volume of the box body 1, but also effectively utilize the space on the electrical integration board 710. Partition plates 712 are arranged between the upper battery cells 711. At the other end of the electrical integration board 710, there are electrical components 713. The battery module 7, the upper battery cells 711, and the electrical components 713 are all electrically connected to the electrical integration board 710. An antenna 9 and a communication interface 10 are also arranged outside the box body 1. Adjacent battery cells 72 and adjacent upper battery cells 711 are connected by aluminum sheets 714. Adjacent battery modules 7 are connected by flexible copper bars 715. The flexible copper bars 715 can release the stress generated by the vibration of the battery cells 72 and increase the current-carrying capacity.

[0022] In this embodiment, a first discharge port 11, a second discharge port 12, and a charging port 13 are further arranged at the outer end of the box body 1. The first discharge port 11, the second discharge port 12, and the charging port 13 are all electrically connected to the electrical integration board 710. The first discharge port 11 and the second discharge port 12 can be used in parallel or separately.

[0023] In this embodiment, mounting notches 716 are provided on both sides of the upper end of the end plate 71. The mounting notches 716 are formed by three flanges and are used for the installation and positioning of the insulator 717. After the installation is completed, structural adhesive is used to fill and fix them to prevent the influence caused by vibration.

[0024] The utility model is applied to the technical field of power batteries.

[0025] Although the embodiments of the utility model are described with actual solutions, they do not constitute a limitation to the meaning of the utility model. For those skilled in the art, it is obvious to modify its implementation solutions according to this specification and combine them with other solutions.

Claims

1. A high-strength power battery with a hoisting structure, characterized in that: It includes a box body (1), and several groups of splicing and hoisting modules are arranged outside the box body (1). Each group of the splicing and hoisting modules includes two splicing and hoisting structures (2) symmetrically arranged on the outer walls of both ends of the box body (1). Each of the splicing and hoisting structures (2) is provided with a plurality of hoisting holes (3) and a plurality of hoisting buckle slots (4). A box cover (5) is fixed at the upper end of the box body (1), and a plurality of reinforcing rib strips (6) are arranged at the bottom of the box cover (5). A plurality of groups of battery modules (7) are fixed inside the box body (1).

2. The high-strength power battery with a hoisting structure according to claim 1, wherein: Fixed foot plates (8) are arranged at both ends of the bottom of the box body (1). The splicing and hoisting structure (2) is a U-shaped groove plate (21). Welding foot plates (22) are arranged on both sides of the U-shaped groove plate (21). The U-shaped groove plate (21) is welded and fixed to the outer wall of the box body (1) through the welding foot plates (22) on both sides. The bottom of the U-shaped groove plate (21) is welded and fixed to the welding foot plates (22). The hoisting holes (3) and the hoisting buckle slots (4) are both arranged on the end face of the U-shaped groove plate (21), and the hoisting holes (3) and the hoisting buckle slots (4) are arranged alternately. A plurality of through holes (23) are arranged on both sides of the U-shaped groove plate (21).

3. A high-strength power battery with a hoisting structure according to claim 1, characterized in that: The battery module (7) includes two end plates (71). A plurality of battery cells (72) are vertically stacked between the two end plates (71). Limiting plates (73) are fixed between the upper ends of the two end plates (71). Two connecting side plates are arranged at the lower parts of the two end plates (71). The connecting side plates include connecting cross plates (74) and connecting vertical plates (75) vertically connected to one end of the connecting cross plates (74). The two connecting cross plates (74) are respectively fixed between the bottoms of the two end plates (71), and the ends of the two connecting cross plates (74) are connected. The two connecting vertical plates (75) are respectively fixed between the lower ends of the two end plates (71). The two connecting cross plates (74) form a battery cell bottom support plate, and a heating sheet is arranged between the battery cell bottom support plate and the battery cells (72). A heat preservation cotton layer is further arranged at the lower end of the heating sheet. A wiring avoidance opening (76) is arranged at the lower part of the end plate (71). Two connecting angle codes (77) are arranged in the middle of the end plate (71). Mounting strip plates (78) are arranged on the inner walls of both ends of the box body (1). The connecting angle codes (77) are fixed to the mounting strip plates (78) through bolts.

4. A high-strength power battery with a hoisting structure according to claim 3, characterized in that: A support frame plate (79) is arranged between the middle parts of the upper ends of the two end plates (71). An electrical integration board (710) is arranged on the support frame plate (79) in several groups of battery modules (7). Four horizontally placed upper electric cores (711) are arranged at one end of the electrical integration board (710). A partition plate (712) is arranged between the upper electric cores (711). Electrical components (713) are arranged at the other end of the electrical integration board (710). The electrical components (713) are electrically connected to the electrical integration board (710). An antenna (9) and a communication interface (10) are also arranged outside the box body (1). Adjacent electric cores (72) and adjacent upper electric cores (711) are connected by aluminum sheets (714). Adjacent battery modules (7) are connected by flexible copper bars (715).

5. A high-strength power battery with a hoisting structure according to claim 4, characterized in that: A first discharge port (11), a second discharge port (12) and a charging port (13) are also arranged at the outer end of the box body (1). The first discharge port (11), the second discharge port (12) and the charging port (13) are all electrically connected to the electrical integration board (710).

6. The high-strength power battery with a hoisting structure according to claim 3, characterized in that: Mounting slots (716) are arranged on both sides of the upper end of the end plate (71). Insulators (717) are installed in the mounting slots (716).

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