Skin type battery tray

Abstract

The utility model relates to a skin type battery tray which comprises a frame body and a shell, the frame body comprises edge beams and longitudinal beams, the shell comprises an outer skin and an inner skin, the outer skin and the inner skin are respectively connected with the frame body, sealing rubber strips are arranged at the connecting positions of the skins and the frame body, joists are arranged on the edge beams, and the longitudinal beams comprise top plates and bottom plates. An inclined upper plate and an inclined lower plate are arranged between the top plate and the bottom plate, and the upper plate and the lower plate are connected with the top plate and the bottom plate; compared with the prior art, the skin type battery tray is high in integrity, the skin type battery tray generally adopts an integrated design, and a complete sealing structure is formed through tight combination of the skin and the frame body; by means of the design, the number of sealing points is reduced, and the leakage risk is reduced; the sealing performance is good, the skin and the box body are connected through the welding technology, so that the sealing performance of the connecting position is guaranteed, the skin generally has certain elasticity and can adapt to deformation generated in the welding process, and therefore the sealing performance of the box body is better guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, and in particular to a skin-type battery tray. Background Technology

[0002] Battery trays, also known as power battery trays, battery boxes, or battery brackets, are components that support and protect power batteries, and are widely used in the new energy vehicle industry. Firstly, high-quality battery trays should possess excellent airtightness to prevent impurities, moisture, and gas mixing within the battery, thus ensuring the battery's normal operating condition and lifespan. Secondly, the airtight design of the battery tray effectively maintains a stable internal environment, preventing heat loss and temperature fluctuations, thereby improving battery performance and lifespan. Furthermore, in the event of battery leaks or other abnormalities, the airtight design prevents the leakage of harmful substances, avoiding pollution and harm to the surrounding environment. In summary, airtightness is a crucial testing indicator for battery pack trays; however, currently available battery trays cannot guarantee the sealing performance of the enclosure. Utility Model Content

[0003] To address the issue that existing battery trays cannot guarantee the sealing performance of the enclosure, a skin-type battery tray is proposed.

[0004] The technical solution of this utility model is as follows: a skin-type battery tray, including a frame and a shell. The frame includes side beams and longitudinal beams. The shell includes an outer skin and an inner skin. The outer skin and the inner skin are respectively connected to the frame. A sealing strip is provided at the connection between the skin and the frame. A support beam is provided on the side beam. The longitudinal beam includes a top plate and a bottom plate. Two inclined upper plates and lower plates are provided between the top plate and the bottom plate. The upper plates and the lower plates are both connected to the top plate and the bottom plate.

[0005] Preferably, the longitudinal beam is vertically connected to two opposite side beams.

[0006] Preferably, the longitudinal beams are arranged parallel to each other.

[0007] Preferably, the frame is welded from high-strength steel.

[0008] Preferably, the outer skin and the inner skin are welded to the frame body respectively.

[0009] Preferably, the outer skin and the inner skin are shallow basin-shaped and have basin edges and basin openings.

[0010] Preferably, the outer skin and the inner skin are bonded together at the edge of the basin.

[0011] Preferably, the outer skin and the inner skin are welded to the battery box.

[0012] Preferably, the side beams and longitudinal beams are connected by welding, riveting, or bolting.

[0013] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model has strong integrity. The skin-type battery tray usually adopts an integrated design, forming a complete sealed structure through the tight combination of the skin and the frame. This design reduces the number of sealing points and lowers the risk of leakage. It has good sealing performance. The skin and the box are connected by welding process, which ensures the sealing performance of the connection. In addition, the skin material usually has a certain degree of elasticity, which can adapt to the deformation generated during the welding process, thereby better ensuring the sealing performance of the box. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the skin-type battery tray of this utility model;

[0015] Figure 2 This is a top view of the skin-type battery tray of this utility model;

[0016] Figure 3 for Figure 2 Sectional view of BB;

[0017] Figure 4 for Figure 3 A magnified view of part C.

[0018] The component names corresponding to the various reference numerals in the diagram are as follows:

[0019] 1. Shell; 11. Outer skin; 12. Inner skin; 2. Frame; 21. Side beam; 22. Longitudinal beam; 221. Top plate; 222. Bottom plate; 223. Upper plate; 224. Lower plate. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0021] refer to Figure 1 , 2 As shown, this utility model provides a skin-type battery tray, including a frame 2 and a shell 2. The frame 2 includes side beams 21 and longitudinal beams 22. The longitudinal beams 22 are vertically connected to two opposite side beams 21. In this example, there are three longitudinal beams 22, which are arranged parallel to each other. The frame 2 is welded from high-strength steel. After welding, the frame 2 is subjected to electrophoretic treatment. The tensile strength grade of the selected steel is not less than 600MPa, which meets the requirements of strength, rigidity and collision and compression safety of the battery pack tray.

[0022] The shell 1 includes an outer skin 11 and an inner skin 12 that are generally shallow basin-shaped and have a basin edge and a basin mouth. The outer skin 11 and the inner skin 12 are bonded together at the basin edge.

[0023] The outer skin 11 and inner skin 12 are tightly fitted to the frame 2 to form a complete sealed structure. This design reduces the number of sealing points in the structure and lowers the risk of battery box leakage. It can also effectively prevent external gases and moisture from entering the battery box, thereby protecting the battery pack from environmental factors such as moisture and corrosion. The outer skin 11 and inner skin 12 are connected to the battery box by welding, which ensures the sealing performance of the connection. In addition, the skin material usually has a certain degree of elasticity, which can adapt to the deformation generated during the welding process, thereby better ensuring the sealing performance of the battery box.

[0024] Laser cutting and CNC bending are used to process the outer skin 11 and inner skin 12 to form the required shape and size. During processing, the precision and flatness of the outer skin 11 and inner skin 12 must be ensured. According to design requirements, welding, riveting, or bolting are used to assemble the various parts of the frame 2. The strength and rigidity of the frame 2 must meet the requirements. Welding is used to connect the outer skin 11 and inner skin 12 to the frame 2. During the connection process, good sealing must be ensured to prevent gas leakage. Suitable sealing materials are selected, and sealing strips are installed at the connection between the skin and the frame 2. During installation, the sealing strips must be tightly fitted to the parts to ensure a tight seal at the connection.

[0025] refer to Figure 3 As shown, the side beam 21 is equipped with a support beam, and the longitudinal beam 22 includes a top plate 221 and a bottom plate 222. Two inclined upper plates 223 and lower plates 224 are provided between the top plate 221 and the bottom plate 222. The upper plates 223 and lower plates 224 are connected to the top plate 221 and the bottom plate 222, thus forming a high-strength rectangular frame diagonal bracing structure. Under collision conditions, this structure can improve the battery pack shell's resistance to compression and intrusion, thereby improving the overall collision safety. According to the design of the frame 2, a reasonable and appropriate skin structure is designed. The skin structure can completely cover part of the frame 2 and leave necessary heat dissipation holes and assembly holes.

[0026] Compared with the prior art, this utility model has strong integrity. The skin-type battery tray usually adopts an integrated design. Through the tight combination of the skin and the frame 2, a complete sealed structure is formed. This design reduces the number of sealing points and reduces the risk of leakage. It has good sealing performance. The skin and the box are connected by welding process, which ensures the sealing performance of the connection. In addition, the skin material usually has a certain degree of elasticity, which can adapt to the deformation generated during the welding process, thereby better ensuring the sealing performance of the box.

[0027] It should be noted that the terms "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. "A plurality of" means two or more. "Installed," "connected," and "joined" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model are still within the scope of the technical solution of this utility model.

Claims

1. A skin battery tray, characterized by, The utility model relates to a battery box, including frame (2) and casing (1), frame (2) includes edge beam (21) and longitudinal beam (22), casing (1) includes outer skin (11) and inner skin (12), and outer skin (11) is connected with inner skin (12) respectively with frame (2), and the junction of skin and frame (2) is equipped with sealing rubber strip, and edge beam (21) is equipped with joist, and longitudinal beam (22) includes roof (221) and bottom plate (222), and is equipped with two inclined upper plate (223) and lower plate (224) between roof (221) and bottom plate (222), and upper plate (223) and lower plate (224) are connected with roof (221) and bottom plate (222).

2. The skin battery tray of claim 1, wherein, The longitudinal beam (22) is vertically connected to the opposite two edge beams (21).

3. The skin battery tray of claim 2, wherein, The longitudinal beams (22) are arranged in parallel with each other.

4. The skin battery tray of claim 1, wherein, The frame (2) is welded by high-strength steel.

5. The skin battery tray of claim 1, wherein, The outer skin (11) and the inner skin (12) are welded to the frame (2) respectively.

6. The skin battery tray of claim 1, wherein, The outer skin (11) and the inner skin (12) are shallow basin-shaped and have a basin edge and a basin opening.

7. The skin battery tray of claim 6, wherein, The outer skin (11) and the inner skin (12) are bonded at the basin edge.

8. The skin battery tray of claim 1, wherein, The outer skin (11) and the inner skin (12) are welded to the battery box.

9. The skin battery tray of claim 1, wherein, The edge beam (21) and the longitudinal beam (22) are connected by welding, riveting or bolting.

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