A high-strength material battery tray with integrated cold plate and one-piece welding

Abstract

The utility model provides a high-strength material battery tray with integrated cold plate integral welding, which relates to the technical field of battery accessories, and comprises an upper plate and a lower plate, wherein a groove is opened on the upper plate, and the top surface of the groove is sealed, thereby forming a cavity between the upper plate and the lower plate, a water nozzle is arranged on one side of the upper plate, and a long cross beam and an end cross beam are respectively arranged on the side edges of the top surface of the upper plate, and the long cross beam and the end cross beam are both composed of two parts to form a rectangular frame, and connecting blocks are arranged at the corner positions where adjacent long cross beams and end cross beams are connected, so as to optimize the box structure and increase the strength of the box, and at the same time, use an integrated welding process to simplify the production process of the box and the cold plate, thereby improving the production efficiency of the product.

Description

Technical Field

[0001] The utility model relates to the technical field of battery accessories, in particular to a high-strength material battery tray with integrated cold plate integral welding. Background Art

[0002] At this stage, the new energy vehicle and energy storage industry are developing rapidly. As one of the important components of the power battery and energy storage cabinet of new energy vehicles, the power battery of electric vehicles is located at the bottom of the car, which affects the safety of passengers. The use of this aluminum-steel composite material integrated welded box can enhance the body structure. For the energy storage cabinet, the use of this aluminum-steel composite material integrated welded box can optimize the battery box structure and improve the space utilization of the energy storage cabinet. The original automobile power battery box and energy storage battery box are formed by separate welding of profiles, and the cold plate and battery box are assembled together by FDS nails and friction stir welding. The box production route is relatively complicated, and this process route leads to a higher price for the battery. Now the integrated welding (brazing) process is used to produce and process the battery tray to improve the production efficiency of the product. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a high-strength material battery tray with integrated cold plate and one-piece welding.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-strength material battery tray with integrated cold plate integral welding, comprising an upper plate and a lower plate, one side of the upper plate is provided with a water nozzle, and the top side edges of the upper plate are respectively provided with a long cross beam and an end cross beam, and the long cross beam and the end cross beam are both composed of two parts combined to form a frame, and connecting blocks are provided at the corners where the adjacent long cross beams and end cross beams are connected.

[0005] Preferably, an intermediate crossbeam is provided between the long crossbeams.

[0006] Preferably, the upper plate and the lower plate form a cavity, and the cavity and the water nozzle are interconnected.

[0007] Preferably, the connecting block has an L-shaped shape, and the connecting positions between the connecting block and the end cross beam or between the connecting block and the long cross beam are positioned by friction resistance.

[0008] Preferably, supporting feet are provided at the connection and installation positions of the middle crossbeam and the long crossbeam.

[0009] Preferably, U-shaped grooves are evenly arranged on the surface of the upper plate.

[0010] Beneficial Effects

[0011] In the utility model, the box structure is optimized, the strength of the box is increased, and at the same time, an integrated welding process is used to simplify the production process of the box and the cold plate, thereby improving the production efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the main structure diagram of the utility model;

[0013] Figure 2 It is an exploded view of the utility model;

[0014] Figure 3 This is a framework diagram of the utility model.

[0015] Legend:

[0016] 1. Connecting block; 2. End beam; 3. Long beam; 4. Middle beam; 5. Lower plate; 6. Water nozzle; 7. Upper plate. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects of the utility model easier to understand, the utility model is further described below in conjunction with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0018] The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings. Specific embodiment one:

[0020] Reference Figure 1-3A high-strength material battery tray with integrated cold plate and integral welding includes an upper plate 7 and a lower plate 5. A groove is provided on the upper plate 7, and the top surface of the groove is sealed, so that a cavity is formed between the upper plate 7 and the lower plate 5. A water nozzle 6 is provided on one side of the upper plate 7, and the cavity and the two water nozzles 6 are interconnected, one of which is used to enter the liquid, and the other is used to flow out the liquid. The upper plate 7, the lower plate 5, the water nozzle 6 and the cavity together constitute the water nozzle. The top side of the upper plate 7 is respectively provided with a long crossbeam 3 and an end crossbeam 2, and the long crossbeam 3 and the end crossbeam 2 are both composed of two pieces to form a rectangular frame. In other embodiments, it can also be a polygon of other shapes. The long crossbeam 3 is provided with an intermediate crossbeam 4, and the connecting and mounting positions of the intermediate crossbeam 4 and the long crossbeam 3 are provided with legs, which are fixed by the legs. Bolts or welding positioning methods can be used. It is only necessary to ensure the stability of the overall frame. The middle crossbeam 4, the long crossbeam 3 and the end crossbeam 2 are all hollow rectangular tubes, and connecting blocks 1 are provided at both ends of the adjacent long crossbeams 3 and the end crossbeams 2. The shape of the connecting block 1 is L-shaped, and the two ends of the connecting block 1 are respectively inserted into the ports of the long crossbeam 3 and the end crossbeam 2, and the connection positions between the connecting block 1 and the end crossbeam 2 or the connecting block 1 and the long crossbeam 3 are positioned by friction resistance. The positioning and tightening are carried out by the friction force between the end of the connecting block 1 and the inner cavity of the end crossbeam 2 or the long crossbeam 3. At the same time, other external positioning forms may also be provided, including but not limited to bolt tightening, welding machine fixing and the like. Specific embodiment 2:

[0022] Reference Figure 1-3 A high-strength material battery tray with integrated cold plate and one-piece welding. In a further technical solution, when the distance between the two sets of long beams 3 is not enough to produce stress deformation, the middle beam 4 can be removed to make the overall structure lighter. At the same time, the manufacturing cost of the overall structure can also be reduced, thereby improving the unit output rate.

[0023] In summary:

[0024] The crossbeam of the battery tray uses aluminum-steel composite materials. The materials are a new type of material that is composited with aluminum and steel plates. The aluminum-steel composite materials use steel as the core material and aluminum as the welding material and anti-corrosion material. There are many forms of material composites, including single aluminum-steel composite, double aluminum-steel composite, and multiple aluminum-steel composite. The aluminum-steel composite materials are formed by rolling, drawing, bending and other processes to form box crossbeams, upper plates, lower plates, etc. The original automotive power battery box and energy storage battery box are formed by separate welding of profiles, and the battery cold plate and battery box are assembled by FDS nails and friction stir welding. This technical welding scheme consists of crossbeams, connecting blocks, upper plates, lower plates, faucets and other components. The crossbeams made of aluminum-steel composite materials will have higher strength than aluminum crossbeams, and the connecting blocks are inserted into the crossbeams to strengthen the box structure. Pre-fixation is performed by riveting, spot welding and other processes, and the weld is filled with brazing solder (4045 / 4047 and other 4 series aluminum materials). The overall welding of the box is completed by integrated brazing. This design can reasonably utilize aluminum-steel composite materials and use brazing to braze products, which simplifies the battery box and cold plate process flow, improves product production efficiency and strength, and reduces battery and box costs.

[0025] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-strength material battery tray with integrated cold plate integral welding, comprising an upper plate (7) and a lower plate (5), characterized in that: A groove is provided on the upper plate (7), and the top surface of the groove is sealed, so that a cavity is formed between the upper plate (7) and the lower plate (5). Two water nozzles (6) are provided on one side of the upper plate (7), and the cavity and the water nozzles (6) are interconnected, wherein one water nozzle (6) is used for liquid to enter, and the other is used for liquid to flow out. Long cross beams (3) and end cross beams (2) are respectively provided on the side edges of the top surface of the upper plate (7), and the long cross beams (3) and the end cross beams (2) are both composed of two pieces to form a frame, and connecting blocks (1) are provided at the corners where the adjacent long cross beams (3) and end cross beams (2) are connected.

2. The high-strength material battery tray with integrated cold plate and one-piece welding according to claim 1, characterized in that: An intermediate crossbeam (4) is also provided between the long crossbeams (3).

3. The high-strength material battery tray with integrated cold plate and one-piece welding according to claim 2, characterized in that: The long cross beam (3), the end cross beam (2), the middle cross beam (4) and the upper plate (7) are fixedly connected by welding.

4. The high-strength material battery tray with integrated cold plate and integral welding according to claim 3, characterized in that: The long cross beam (3), the end cross beam (2), and the middle cross beam (4) are all hollow rectangular tubes. Both ends of the long cross beam (3) and the end cross beam (2) are provided with connecting blocks (1). The connecting blocks (1) are L-shaped in shape. The two ends of the connecting blocks (1) are respectively inserted into the ports of the long cross beam (3) and the end cross beam (2) for fixing.

5. The high-strength material battery tray with integrated cold plate and integral welding according to claim 4, characterized in that: The connection and installation positions of the middle crossbeam (4) and the long crossbeam (3) are both provided with 90° supporting feet.

6. The high-strength material battery tray with integrated cold plate and one-piece welding according to claim 1, characterized in that: The surface of the upper plate (7) is evenly provided with U-shaped grooves.

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