Battery pack heat dissipation liquid cooling plate

Abstract

The utility model belongs to the technical field of battery heat dissipation, and particularly relates to a battery pack heat dissipation liquid cooling plate. Comprising an upper aluminum plate and a lower aluminum plate, pipelines are symmetrically arranged on the opposite faces of the upper aluminum plate and the lower aluminum plate, a water inlet pipe and a water outlet pipe are arranged on the upper aluminum plate corresponding to the pipelines, and an air cooling assembly is arranged on the lower aluminum plate. According to the utility model, through structural improvement, symmetrical flowing pipelines are designed, so that the heating of the battery pack is more balanced, and the heat of the battery pack can be better dissipated; besides, through the designed air duct, in the running process of the vehicle, the overall temperature can be reduced more quickly through passive air inlet, heat dissipation modes are increased, and cooling of the battery pack is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery heat dissipation, and in particular relates to a battery pack heat dissipation liquid cooling plate. Background Art

[0002] A liquid cold plate is a device used to dissipate heat, typically made from aluminum alloy through die extrusion, stamping, or welding. In some applications, such as power battery systems, it primarily serves to dissipate excess heat.

[0003] The battery pack's liquid cooling plate dissipates heat solely through liquid cooling. Furthermore, the water temperature near the water inlet is relatively low, but as it flows, it rises significantly once it reaches the outlet. This results in excellent heat dissipation near the water inlet, while significantly poorer heat dissipation near the outlet. To address this issue, the present invention proposes a new liquid cooling plate with improved heat dissipation. Utility Model Content

[0004] In order to solve the problems existing in the background technology, the utility model provides a battery pack heat dissipation liquid cooling plate; by combining two methods to cool down, the temperature of the battery pack can be stably adjusted.

[0005] The utility model provides a battery pack heat dissipation liquid cooling plate, comprising an upper aluminum plate and a lower aluminum plate, wherein pipelines are symmetrically provided on the opposite surfaces of the upper aluminum plate and the lower aluminum plate, a water inlet pipe and a water outlet pipe are provided on the corresponding pipelines on the upper aluminum plate, and an air cooling component is provided on the lower aluminum plate.

[0006] Furthermore, the air cooling component includes protrusions evenly arranged on the lower side of the lower aluminum plate, a cavity is provided in the lower aluminum plate between the pipeline and the protrusion, an air inlet is provided on the protrusion, and an air outlet is provided on one side of the lower aluminum plate, and the air inlet and the air outlet are both interconnected with the cavity.

[0007] Furthermore, a sealing strip is provided on the lower aluminum plate around the pipeline.

[0008] Furthermore, the pipeline is arranged in an S shape.

[0009] Furthermore, the upper aluminum plate and the lower aluminum plate are fixed by welding.

[0010] Beneficial effects of the utility model:

[0011] The utility model improves the structure and designs symmetrical flow pipes, so that the heat of the battery pack is more evenly distributed, and the heat dissipation of the battery pack can be better. In addition, through the designed air duct, the overall temperature can be reduced faster through passive air intake during the driving of the vehicle, and the heat dissipation method is increased, which is beneficial to the cooling of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a front and top perspective view of a battery pack heat dissipation liquid cooling plate of the present invention.

[0013] Figure 2 This is a rear and upward perspective view of a battery pack heat dissipation liquid cooling plate according to the present invention.

[0014] Figure 3 This is a rear and top exploded view of a battery pack heat dissipation liquid cooling plate of the utility model.

[0015] Figure 4 This is a front and bottom exploded view of a battery pack heat dissipation liquid cooling plate of the present invention.

[0016] Figure 5 This is a partial cross-sectional view of a battery pack heat dissipation liquid cooling plate of the present invention.

[0017] Figure 6 This is a schematic diagram of area A of a battery pack heat dissipation liquid cooling plate of the present invention.

[0018] As shown in the figure: 1. Upper aluminum plate, 2. Lower aluminum plate, 3. Pipe, 4. Water inlet pipe, 5. Water outlet pipe, 6. Protrusion, 7. Cavity, 8. Air inlet, 9. Air outlet, 10. Sealing strip. DETAILED DESCRIPTION

[0019] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0021] See also Figures 1-6The present invention provides a battery pack heat dissipation liquid cold plate, comprising an upper aluminum plate 1 and a lower aluminum plate 2. Pipes 3 are symmetrically provided on opposing surfaces of the upper and lower aluminum plates 1 and 2. A water inlet pipe 4 and a water outlet pipe 5 are provided on the upper aluminum plate 1 corresponding to the pipes 3. An air cooling assembly is provided on the lower aluminum plate 2. When the upper and lower aluminum plates 1 and 2 are assembled together and the water inlet pipe 4 and outlet pipe 5 are connected, liquid from the outside of the water inlet pipe 4 enters the pipe 3 and is then discharged through the outlet pipe 5. As the liquid flows through the pipe 3, it removes heat generated by the battery pack through contact, achieving efficient and more balanced cooling.

[0022] As a technical optimization solution of the present invention, specifically, the air-cooling assembly includes protrusions 6 uniformly arranged on the lower side of the lower aluminum plate 2, a cavity 7 is provided in the lower aluminum plate 2 between the pipeline 3 and the protrusion 6, an air inlet 8 is provided on the protrusion 6, and an air outlet 9 is provided on one side of the lower aluminum plate 2, and the air inlet 8 and the air outlet 9 are both interconnected with the cavity 7. When the vehicle is running, the outside air will enter the cavity 7 through the air inlet 8. Through contact with the cavity 7, the heat dissipation effect of the lower aluminum plate 2 is better, and the burden of heat dissipation can be shared with the liquid in the pipeline 3, thereby improving the heat dissipation effect. Finally, the air in the cavity 7 is discharged through the air outlet 9; through the provision of the cavity 7, the weight of the lower aluminum plate 2 can also be reduced to a certain extent, which is conducive to the lightweight design of the vehicle.

[0023] Furthermore, a sealing strip 10 is provided around the pipeline 3 on the lower aluminum plate 2; the sealing strip 10 can provide sufficiently effective sealing conditions for the pipeline 3 when the upper aluminum plate 1 and the lower aluminum plate 2 are attached to each other, thereby preventing leakage of the pipeline 3 and causing damage to the battery pack.

[0024] Furthermore, the pipeline 3 is arranged in an S shape. The S-shaped pipeline 3 can obtain a larger heat dissipation area, can fully utilize the liquid cooling material in the pipeline 3 to dissipate heat, and take away more heat from the battery pack.

[0025] Specifically, in this embodiment, the upper aluminum plate 1 and the lower aluminum plate 2 are fixed by welding. By welding, the upper aluminum plate 1 and the lower aluminum plate 2 can be stably combined to ensure that the entire liquid cooling plate can work effectively.

[0026] In the present invention, after the upper aluminum plate 1 and the lower aluminum plate 2 are welded together, the water inlet pipe 4 and the water outlet pipe 5 are connected, and the liquid outside the water inlet pipe 4 enters the pipe 3 and is then discharged through the water outlet pipe 5. When flowing in the pipe 3, the heat generated by the battery pack can be taken away by contact, thereby achieving efficient and more balanced cooling; when the vehicle is running, the outside air will enter the cavity 7 through the air inlet 8, and through contact with the cavity 7, the heat dissipation effect of the lower aluminum plate 2 will be better, and the burden of heat dissipation can be shared with the liquid in the pipe 3, thereby improving the heat dissipation effect. Finally, the air in the cavity 7 is discharged through the air outlet 9; through the setting of the cavity 7, the weight of the lower aluminum plate 2 can also be reduced to a certain extent, which is conducive to the lightweight design of the vehicle.

[0027] The above description of the present invention and its embodiments is non-limiting. The specific embodiments shown in the specific embodiments are only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without creatively designing a structure and embodiment similar to the technical solution, they shall fall within the scope of protection of the present invention.

Claims

1. A battery pack heat dissipation liquid cooling plate, comprising an upper aluminum plate and a lower aluminum plate, characterized in that: Pipes are symmetrically arranged on the opposite surfaces of the upper aluminum plate and the lower aluminum plate, the upper aluminum plate is provided with a water inlet pipe and a water outlet pipe corresponding to the pipes, and the lower aluminum plate is provided with an air cooling component; The air cooling component includes protrusions evenly arranged on the lower side of the lower aluminum plate, a cavity is provided in the lower aluminum plate between the pipeline and the protrusion, an air inlet is provided on the protrusion, and an air outlet is provided on one side of the lower aluminum plate, and the air inlet and the air outlet are both interconnected with the cavity.

2. The battery pack heat dissipation liquid cold plate according to claim 1, characterized in that: A sealing strip is provided on the lower aluminum plate surrounding the pipeline.

3. The battery pack heat dissipation liquid cold plate according to claim 1, characterized in that: The pipeline is arranged in an S shape.

4. The battery pack heat dissipation liquid cold plate according to claim 1, characterized in that: The upper aluminum plate and the lower aluminum plate are fixed by welding.

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