Honeycomb rib structure isolation plate applied to energy storage battery and power battery

Abstract

The utility model discloses a honeycomb rib structure isolation plate applied to an energy storage battery and a power battery, which comprises a top plate for bearing the battery, and the top plate is provided with a hollow part for exposing a battery pressure release valve and a pole; inner reinforcing ribs are arranged on the side, away from the battery, of the top plate in the length direction; outer reinforcing ribs are arranged on the two sides of the top plate in the length direction. The cross section of each outer reinforcing rib is of a honeycomb structure; the top plate, the inner reinforcing ribs and the outer reinforcing ribs are integrally formed in an injection molding mode. The utility model has the obvious advantages in the aspects of improving the safety, reducing the cost, improving the production efficiency, being convenient to assemble and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection moulding isolation plate, especially a honeycomb rib structure isolation plate applied to energy storage battery and power battery. BACKGROUND

[0002] With the rapid development of new energy technology, electric vehicles as representatives of new energy vehicles, the safety of its battery system is more and more valued. Energy storage battery and power battery as the core components of electric vehicles, its safety performance is directly related to the safety of vehicles and passengers. In the battery system design process, the isolation plate is one of the key safety components, its main role is to provide support and isolation between battery modules to prevent short circuit and mechanical damage between batteries.

[0003] However, the existing isolation plate design guarantees safety, often has problems such as complex structure, high cost, low production efficiency. The traditional isolation plate adopts metal structure, its weight is big, cost is high, and when the battery is out of control, it cannot effectively guide the energy and toxic gas to the outside of the vehicle, thereby increasing the risk of passengers in the vehicle.

[0004] Therefore, it is necessary to develop a new type of isolation plate, which can not only effectively improve the safety of the battery system, but also has good economy and production efficiency to meet the dual requirements of safety and economy of electric vehicles for battery system. UTILITY MODEL CONTENT

[0005] In order to solve the above technical problems, the utility model adopts the technical scheme of a honeycomb rib structure isolation plate applied to energy storage battery and power battery, which comprises a top plate for bearing battery, and a hollow part for exposing battery pressure relief valve and pole is set up on the top plate.

[0006] In order to solve the above technical problems, the utility model adopts the technical scheme of a honeycomb rib structure isolation plate applied to energy storage battery and power battery, which comprises a top plate for bearing battery, and a hollow part for exposing battery pressure relief valve and pole is set up on the top plate.

[0007] The side of the top plate away from the battery is provided with an inner reinforcing rib along the length direction;

[0008] The two sides of the top plate are provided with outer reinforcing ribs along the length direction;

[0009] The cross section of the outer reinforcing rib is in honeycomb structure shape;

[0010] The top plate, the inner reinforcing rib and the outer reinforcing rib are integrally injection molded.

[0011] Further, the same side end of the inner reinforcing rib and the outer reinforcing rib extends outwards transversely.

[0012] Further, the inner reinforcing ribs form a first U-shaped groove recessed in a direction away from the battery in the vertical direction, and a reinforcing plate uniformly arranged in the first U-shaped groove in the vertical direction.

[0013] Further, the outer reinforcing ribs form a second U-shaped groove recessed in a direction close to the top plate in the horizontal direction, and a honeycomb plate between the upper end wall and the lower end wall of the second U-shaped groove.

[0014] Further, the upper end wall of the second U-shaped groove is flush with the top plate.

[0015] Further, the hollow part is located between adjacent inner reinforcing ribs and outer reinforcing ribs, or between adjacent inner reinforcing ribs.

[0016] The utility model provides a kind of honeycomb rib structure isolation plate applied to energy storage battery and power battery, which brings significant benefits through the following settings:

[0017] Cell inversion technology: the hollow part opened on the top plate allows the pressure relief valve and pole of the battery cell to be inverted. This design can direct the energy and toxic gases in the battery to the vehicle bottom rather than the passenger cabin in the vehicle in the extreme case of thermal runaway of the energy storage battery and power battery, thereby maximizing the safety of passengers.

[0018] Structural strength improvement: by setting inner reinforcing ribs and outer reinforcing ribs on the top plate and using PP+GF30 plastic material for integral injection molding, the isolation plate forms a flat plate structure with four reinforcing ribs. In particular, the honeycomb rib structure of the outer reinforcing rib greatly improves the strength of the isolation plate and effectively supports the cell, reducing the need for internal aluminum structural support.

[0019] Cost reduction and capacity improvement: due to the reduction of internal aluminum structural support, this design can effectively reduce production costs and simplify manufacturing processes, improving production capacity.

[0020] Easy to assemble and highly integrated: by setting buckles, the isolation plates can be quickly buckled and fixed, forming a buckle assembly structure. This not only improves the strength of the overall structure, but also allows the isolation plates to be easily integrated into the battery system, simplifying the assembly process.

[0021] Wide applicability: the isolation plate design is suitable for different battery systems, and due to the use of modular design, the number and layout of reinforcing ribs can be adjusted according to different needs, with wide applicability. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a three-dimensional structure schematic diagram of the utility model.

[0023] Figure 2The utility model discloses a structure schematic diagram of installing the battery.

[0024] Figure 3 For Figure 1 The side view.

[0025] In the figure: 1, top plate; 2, hollow part; 3, inner reinforcing rib; 4, outer reinforcing rib; 5, buckle; 6, No. U-shaped groove; 7, reinforcing plate; 8, No. 2 U-shaped groove; 9, honeycomb plate; 10, battery. Specific embodiments

[0026] The utility model will be further explained in detail in combination with the drawings and specific embodiments.

[0027] In the embodiment, as shown in Figures 1-3 A honeycomb rib structure isolation plate applied to energy storage batteries and power batteries is disclosed, the isolation plate comprises a top plate 1 for bearing batteries, as described in the subject, the batteries 10 comprise energy storage batteries and power batteries, the top plate 1 adopts a plane plate body, and the top plate 1 is provided with a hollow part 2 for exposing battery relief valves and pole columns; The hollow part 2 should meet the exposure requirements of the relief valves and pole columns, and the purpose of such arrangement is to invert the relief valves and pole columns of the battery cell based on the cell inversion technology, so that in an extreme case, such as thermal runaway of the energy storage batteries and power batteries, the energy and toxic gas in the battery are released to the vehicle bottom through the inverted relief valves and pole columns instead of directly spraying to the vehicle passenger compartment, thereby maximizing the safety of the personnel in the vehicle, and therefore, the utility model is an isolation plate arranged based on the cell inversion technology.

[0028] Meanwhile, the inner reinforcing rib 3 is arranged on one side of the top plate 1 away from the battery along the length direction, the inner reinforcing rib 3 forms a No. U-shaped groove 6 recessed in the direction away from the battery along the vertical direction, and a reinforcing plate 7 is uniformly arranged in the No. U-shaped groove 6 along the vertical direction; The outer reinforcing rib 4 is arranged on both sides of the top plate 1 along the length direction; In the embodiment, the hollow part 2 is multiple, the inner reinforcing rib 3 is two, part of the hollow part 2 is located between the adjacent inner reinforcing rib 3 and outer reinforcing rib 4, meanwhile, another part of the hollow part 2 is located between the adjacent inner reinforcing rib 3 and inner reinforcing rib 3, the top plate 1, the inner reinforcing rib 3 and the outer reinforcing rib 4 are integrally injection molded by PP+GF30 plastic material, so that the overall structure is formed as a flat plate structure and has four reinforcing ribs, wherein the outer reinforcing rib is a honeycomb rib structure, which can greatly improve the strength of the isolation plate, effectively support the cell and reduce the internal aluminum structure support, effectively reduce the production manufacturing cost, improve the production capacity, and have wide applicability.

[0029] In other embodiments, the inner reinforcing rib 3 is one, in which case, the hollow part 2 is located between the adjacent inner reinforcing rib 3 and outer reinforcing rib 4.

[0030] In this embodiment, the cross section of the outer reinforcing rib 4 is in a honeycomb structure; the outer reinforcing rib 4 is formed in the second U-shaped groove 8 which is recessed in the direction close to the top plate 1 along the transverse direction, and the honeycomb plate 9 between the upper end wall and the lower end wall of the second U-shaped groove 8, and the upper end wall of the second U-shaped groove 8 is flush with the top plate 1.

[0031] The same side end of the inner reinforcing rib 3 and the outer reinforcing rib 4 extends outwardly and transversely to form a buckle 5, and the buckles can be used to fix the isolation plates to each other, so that the isolation plates form a buckle assembly structure, and the overall strength is very high, which can bear the weight of the entire battery cell. It should be understood that in this embodiment, the buckle is a male contact, and a female contact matched with the male contact can be used on other isolation plates.

[0032] In summary, the isolation plate of the utility model relates to the following key improvements:

[0033] Battery cell inversion improvement: The hollow part 2 on the isolation plate is designed for the pressure relief valve and the pole of the inverted battery cell. Under normal circumstances, the pressure relief valve and the pole of the battery cell are upward, but in this utility model, they are inverted, i.e. downward. When the battery overheats, the internal pressure rises, the pressure relief valve opens, and the pressure is released. Because the pressure relief valve and the pole are downward, the pressure and toxic gas will be discharged along the lower part of the battery cell, away from the passenger cabin, thereby protecting the safety of the passengers.

[0034] Structural reinforcement improvement: The inner reinforcing rib 3 and the outer reinforcing rib 4 on the top plate 1 adopt a specific design, such as the recessed U-shaped groove and the honeycomb plate structure, which increases the local thickness of the material and the stability of the overall structure. The honeycomb structure has high compressive strength and rigidity due to its unique spatial structure, which can effectively withstand pressure and disperse impact force, thereby improving the overall strength of the isolation plate.

[0035] Material selection and molding improvement: A composite material with high strength and light weight, PP+GF30 (polypropylene + glass fiber reinforced material), is used for one-piece injection molding, so that the isolation plate not only has light weight, but also has high strength. The injection molding process can ensure the dimensional accuracy and structural consistency of the isolation plate, and improve the production efficiency.

[0036] Buckle connection principle: By setting the buckle 5 at the same side end of the reinforcing rib, the isolation plates can be quickly and firmly connected. The design of the buckle structure allows the isolation plates to form a highly integrated overall structure, which not only improves the overall strength, but also simplifies the assembly process.

[0037] The setting principle of the isolation plate mainly comprises improving safety by using cell inversion technology, improving strength and stability by structural reinforcement, selecting appropriate materials and forming processes to ensure performance and cost effectiveness, and adopting buckle connection to simplify assembly and improve overall strength. The principles jointly act, so that the isolation plate can ensure the safety of the battery system, reduce the cost, and improve the production efficiency.

[0038] The above embodiment is not a limitation of the utility model, and the utility model is also not limited to the above examples. Changes, modifications, additions or replacements made by the skilled in the art within the technical solution range of the utility model also belong to the protection range of the utility model.

Claims

1. A honeycomb structure separator plate applied to energy storage batteries and power batteries, characterized in that, The application relates to a battery top plate (1) for bearing a battery, wherein a hollow part (2) is formed on the top plate (1) for exposing a relief valve and a pole of the battery; An inner reinforcing rib (3) is arranged on the top plate (1) away from the battery along the length direction; Outer reinforcing ribs (4) are arranged on both sides of the top plate (1) along the length direction; The outer reinforcing rib (4) has a honeycomb structure in cross section; The top plate (1), the inner reinforcing rib (3) and the outer reinforcing rib (4) are integrally injection molded.

2. The honeycomb-rib structure separator plate for energy storage batteries and power batteries according to claim 1, characterized in that: A buckle (5) is horizontally extended outwards from the same side end of the inner reinforcing rib (3) and the outer reinforcing rib (4).

3. The honeycomb-rib structure separator for energy storage batteries and power batteries according to claim 1 or 2, characterized in that: The inner reinforcing rib (3) forms a first U-shaped groove (6) which is recessed in the direction away from the battery along the vertical direction, and a reinforcing plate (7) which is uniformly arranged in the first U-shaped groove (6) along the vertical direction.

4. The honeycomb-rib structure separator for energy storage batteries and power batteries according to claim 1 or 2, characterized in that: The outer reinforcing rib (4) forms a second U-shaped groove (8) which is recessed in the direction close to the top plate (1) along the horizontal direction, and a honeycomb plate (9) between the upper end wall and the lower end wall of the second U-shaped groove (8).

5. The honeycomb-rib structure separator plate for energy storage batteries and power batteries according to claim 4, characterized in that: The upper end wall of the second U-shaped groove (8) is flush with the top plate (1).

6. The honeycomb-rib structure separator plate for energy storage batteries and power batteries according to claim 4, characterized in that: The hollow part (2) is located between adjacent inner reinforcing ribs (3) and outer reinforcing ribs (4), or between adjacent inner reinforcing ribs (3).

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