A battery cooling plate plastic-coated joint

Abstract

The present invention discloses a battery cooling plate plastic-coated joint, comprising a water-cooled upper plate and a water-cooled lower plate, the outer wall of the water-cooled upper plate being welded with a gasket, and the inner wall of the gasket being wrapped with a plastic joint. The water-cooled upper plate and the water-cooled lower plate are two aluminum plates joined by welding, and a passage formed inside is passed through the cooling plate at the bottom of the battery. The plastic joint serves to connect the coolant passage in the water-cooled upper plate and the water-cooled lower plate and the external pump body pipeline, so that the coolant in the water-cooled plate can communicate with the outside to form a heat dissipation circuit. Since the aluminum gasket is added, the plastic joint is fixed to the water-cooled upper plate by the gasket to avoid the risk of damage to the plastic joint.

Description

Technical Field

[0001] The invention belongs to the technical field of battery cooling, and in particular relates to a battery cooling plate plastic-coated joint. Background Art

[0002] A battery cooling plate refers to a component used to cool batteries. In some electronic devices that require high performance, the batteries are prone to heat up, and excessive heat will have an adverse effect on the battery's life and performance. Therefore, some devices use battery cooling plates to reduce the battery's temperature. Generally speaking, a battery cooling plate removes heat from the battery through heat conduction or convection, thereby achieving the purpose of cooling.

[0003] Ideally, the joint and water plate connection method has no gaskets or O-rings. If O-rings must be used, radial seals must be used to ensure the best reliability. Design features must not act on the hydraulic cross-section of the aluminum water plate. If there is no aluminum gasket in our solution on the water plate, direct welding of aluminum and plastic joints is not practical and there is a risk of breakage. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a battery cooling plate plastic-coated joint having the advantage of good connection effect.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a battery cooling plate plastic-coated joint, comprising a water-cooled upper plate and a water-cooled lower plate, the outer wall of the water-cooled upper plate is welded with a gasket, and the inner wall of the gasket is wrapped with a plastic joint.

[0006] Through the above technical solution, the water-cooled upper plate and the water-cooled lower plate are two aluminum plates connected by welding, and the passage formed inside is passed through the cooling liquid, and the cooling plate is placed at the bottom of the battery. The plastic joint serves to connect the coolant channels in the water-cooled upper plate and the water-cooled lower plate and the external pump body pipeline, so that the coolant in the water-cooled plate can communicate with the outside to form a heat dissipation circuit. Since the aluminum gasket is added, the plastic joint is fixed to the water-cooled upper plate by the gasket to avoid the risk of damage to the plastic joint.

[0007] Preferably, the gasket comprises a plate body, and an inner wall of the plate body is provided with a through groove.

[0008] Through the above technical solution, a connection effect can be achieved, and the plastic joint can be fixed by opening the through groove.

[0009] Preferably, the plastic joint comprises a tube body, an upper pressing plate is fixedly connected to the outer wall of the tube body, and a lower pressing plate is fixedly connected to the outer wall of the tube body.

[0010] Through the above technical solution, a connection effect can be achieved, and the upper pressing plate and the lower pressing plate can play a role in fixing the gasket.

[0011] Preferably, the tube body passes through the through slot, and the plate body is located between the upper pressing plate and the lower pressing plate.

[0012] Through the above technical solution, a connection effect can be achieved, and the tube body can clamp the plate body through the lower pressing plate and the upper pressing plate, so that the two can be fixed to each other.

[0013] Preferably, the gasket is combined with the plastic joint through a plastic overmolding process, and the surface of the gasket is laser micro-etched before the plastic overmolding.

[0014] By means of the above technical solution, fixation can be enhanced, and by laser micro-etching the surface of the gasket, its roughness can be increased, thereby increasing the strength of the connection between the two.

[0015] Preferably, the gasket is laser welded to the water-cooled upper plate, and the water-cooled upper plate is laser welded to the water-cooled lower plate.

[0016] The above technical solution can reduce pollution. Laser welding can reduce the pollution of welding and brazing fluids and eliminate the welding process.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. The water-cooled upper plate and the water-cooled lower plate are two aluminum plates connected by welding. The passage formed inside is passed through the cooling liquid and placed on the cooling plate at the bottom of the battery. The plastic joint connects the coolant channel in the water-cooled upper plate and the water-cooled lower plate and the external pump body pipeline, so that the coolant in the water-cooled plate can communicate with the outside to form a heat dissipation circuit. Due to the addition of an aluminum gasket, the plastic joint is fixed to the water-cooled upper plate by the gasket to avoid the risk of damage to the plastic joint. The design of the aluminum gasket and the plastic-coated joint allows the assembled parts to be laser welded to the water-cooled plate during subsequent installation, which can simplify the manufacturing process. It only needs to be welded and installed at the opening position, and it will be more in line with the restrictions on banned substances in automobiles than brazing flux.

[0019] 2. By opening the groove, the plastic joint can be fixed, and the upper and lower pressure plates can play the role of fixing the gasket. The tube body can clamp the plate body through the lower and upper pressure plates, so that the two can be fixed to each other. By laser micro-etching the surface of the gasket, its roughness can be increased, thereby increasing the strength of the connection between the two. Laser welding can reduce the pollution of welding and brazing fluids, eliminate the welding process, and enrich the connection with the pump body pipeline. It can be combined with plastic rotary welding, commonly used plastic joint design, commonly used plastic split structure design with sealing rings, and commonly used plastic hose plug design to achieve fast and diverse connections with accessories. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the cross-sectional structure of the main body of the present invention;

[0022] Figure 3 It is a schematic diagram of the gasket structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the plastic joint structure of the present invention.

[0024] In the figure: 1. water-cooled upper plate; 2. water-cooled lower plate; 3. gasket; 4. plastic joint; 300. plate body; 301. groove; 400. tube body; 401. upper pressure plate; 402. lower pressure plate. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Embodiment 1:

[0026] See also Figure 1-Figure 4 The present invention provides a technical solution: a battery cooling plate plastic-coated joint, comprising a water-cooled upper plate 1 and a water-cooled lower plate 2, a gasket 3 is welded on the outer wall of the water-cooled upper plate 1, and a plastic joint 4 is wrapped on the inner wall of the gasket 3.

[0027] In this embodiment, the water-cooled upper plate 1 and the water-cooled lower plate 2 are two aluminum plates connected by welding, with a passage formed inside, supercooling liquid, and a cooling plate placed at the bottom of the battery. The plastic joint 4 serves to connect the coolant channels in the water-cooled upper plate 1 and the water-cooled lower plate 2 and the external pump body pipeline, so that the coolant in the water-cooled plate can communicate with the outside to form a heat dissipation circuit. Since the aluminum gasket 3 is added, the plastic joint 4 is fixed to the water-cooled upper plate 1 by the gasket 3 to avoid the risk of damage to the plastic joint 4. Embodiment 2:

[0028] See also Figure 3-Figure 4On the basis of the first embodiment, the present invention provides a technical solution for a battery cooling plate plastic-coated joint: the gasket 3 includes a plate body 300, the inner wall of the plate body 300 is provided with a through groove 301, the plastic joint 4 includes a tube body 400, the outer wall of the tube body 400 is fixedly connected with an upper pressure plate 401, the outer wall of the tube body 400 is fixedly connected with a lower pressure plate 402, the tube body 400 passes through the through groove 301, the plate body 300 is located between the upper pressure plate 401 and the lower pressure plate 402, the gasket 3 and the plastic joint 4 are combined by a plastic-coating process, and the surface of the gasket 3 is laser micro-etched before plastic-coating.

[0029] In this embodiment, the plastic joint 4 can be fixed by opening the through groove 301, and the gasket 3 can be fixed by the upper pressure plate 401 and the lower pressure plate 402. The tube body 400 can clamp the plate body 300 through the lower pressure plate 402 and the upper pressure plate 401, so that the two can be fixed to each other. By laser micro-etching the surface of the gasket 3, its roughness can be increased, thereby increasing the strength of the connection between the two. Embodiment three:

[0030] See also Figure 1 On the basis of Embodiment 1 and Embodiment 2, the present invention provides a technical solution for a battery cooling plate plastic-coated joint: the gasket 3 is laser welded to the water-cooled upper plate 1, and the water-cooled upper plate 1 is laser welded to the water-cooled lower plate 2.

[0031] In this embodiment, laser welding can reduce the pollution of welding and brazing fluids and eliminate the welding process.

[0032] The working principle and use process of the present invention are as follows: the water-cooled upper plate 1 and the water-cooled lower plate 2 are two aluminum plates connected by welding, and the passage formed inside is supercooled liquid, and is placed on the cooling plate at the bottom of the battery. The plastic joint 4 connects the cooling liquid channel in the water-cooled upper plate 1 and the water-cooled lower plate 2 and the external pump body pipeline, so that the cooling liquid in the water-cooled plate can communicate with the outside to form a heat dissipation loop. Due to the addition of the aluminum gasket 3, the plastic joint 4 is fixed to the water-cooled upper plate 1 by the gasket 3 to avoid the risk of damage to the plastic joint 4. The plastic joint 4 can be fixed by opening the groove 301. The upper pressing plate 401 and the lower pressing plate 402 can play the role of fixing the gasket 3. The tube body 400 can clamp the plate body 300 through the lower pressing plate 402 and the upper pressing plate 401, so that the two can be fixed to each other. By laser micro-etching the surface of the gasket 3, its roughness can be increased, thereby increasing the strength of the connection between the two. Laser welding can reduce the pollution of welding and brazing liquid, and eliminate the welding process.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A battery cooling plate plastic-coated joint, comprising a water-cooled upper plate (1) and a water-cooled lower plate (2), characterized in that: A gasket (3) is welded to the outer wall of the water-cooled upper plate (1), and a plastic joint (4) is wrapped around the inner wall of the gasket (3); The gasket (3) comprises a plate body (300), and a through groove (301) is formed on the inner wall of the plate body (300); The plastic joint (4) comprises a tube body (400), an upper pressing plate (401) is fixedly connected to the outer wall of the tube body (400), and a lower pressing plate (402) is fixedly connected to the outer wall of the tube body (400); The tube body (400) passes through the through slot (301), and the plate body (300) is located between the upper pressing plate (401) and the lower pressing plate (402); The gasket (3) and the plastic joint (4) are combined by means of a plastic coating process, and the surface of the gasket (3) is subjected to laser micro-etching before the plastic coating; The gasket (3) is welded to the water-cooled upper plate (1) by laser welding, and the water-cooled upper plate (1) is welded to the water-cooled lower plate (2) by laser welding.

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