Water cooling plate capable of reducing water cooling pressure drop

Abstract

The utility model discloses a water-cooling plate capable of reducing water-cooling pressure drop, which relates to the technical field of water-cooling plates, and comprises a bottom plate, a runner plate is arranged on the bottom plate, a water-cooling runner is arranged on the runner plate, a water inlet and a water outlet are arranged on the runner plate, and the water inlet and the water outlet are respectively positioned at two ends of the water-cooling runner. The utility model can solve the problems that the flow channel depth of the existing liquid cooling plate is 3.5 mm, but the pressure drop required by the water cooling plate is 20KPa, and when the flow channel depth is uniformly designed to be 3.5 mm, the pressure drop test result is 23KPa, and the requirement is not met. The flow channels of the water inlet and the water outlet are designed to be higher than those of other positions, so that the overall pressure drop of the water-cooling plate is reduced, the requirement is met, the pressure drop is reduced by changing the height of part of the flow channels under the condition that the cost is not increased, the overall battery structure and the extrusion space cannot be influenced, the product requirement can be met, and the production cost is reduced. And multiple purposes can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water cooling plates, and particularly relates to a water cooling plate capable of reducing water cooling pressure drop. Background Technique

[0002] With the rapid development of new energy electric vehicles, various new energy vehicles emerge in an endless stream. There are also more and more types of batteries regarded as the life of new energy vehicles. As a result, the requirements for the liquid cooling plates, which are key components in the batteries, are also getting higher and higher.

[0003] In the early design of the water cooling plate, flow distribution and overall pressure drop are two important indicators to measure whether the design is qualified. Uniform flow distribution is related to whether the temperature difference of the battery cells is within the qualified range, while the magnitude of the pressure drop is related to the selection of the hydraulic pump. Only when both of these indicators meet the requirements can it be considered a qualified water cooling plate design.

[0004] As Figure 1 shown, it is a flow channel design diagram of a conventional stamping type liquid cooling plate. The design depths of the conventional liquid cooling plate flow channels are all the same, and the flow channel depth is 3.5mm. However, the required pressure drop of the water cooling plate is 20KPa. When the flow channel depth is uniformly designed to be 3.5mm, the pressure drop test result is 23KPa, which does not meet the requirements. Therefore, there is an urgent need for a water cooling plate capable of reducing water cooling pressure drop to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a water cooling plate capable of reducing water cooling pressure drop. The flow channel heights at the water inlet and outlet are designed to be higher than those at other positions to reduce the overall pressure drop of the water cooling plate and meet the requirements. Without increasing costs, by changing the heights of some flow channels to reduce the pressure drop, it will neither affect the overall battery structure and squeeze the space, nor can it meet the requirements of the product. It can be said to kill two birds with one stone and can solve the problems in the prior art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A water cooling plate capable of reducing water cooling pressure drop, including a bottom plate, a flow channel plate is arranged on the bottom plate, a water cooling flow channel is arranged on the flow channel plate, and a water inlet and a water outlet are also arranged on the flow channel plate. The water inlet and the water outlet are respectively located at both ends of the water cooling flow channel.

[0008] Preferably, the flow channel heights of the water inlet and the water outlet are both higher than the flow channel height of the water cooling flow channel.

[0009] Preferably, the flow channel height of the water cooling flow channel is 3.5mm.

[0010] Preferably, the flow channel heights of the water inlet and the water outlet are both 4.0mm.

[0011] Preferably, both the water inlet and the water outlet are communicated with the water-cooling flow channel.

[0012] Preferably, a water inlet interface is provided on the water inlet, and cooling water enters the water-cooling flow channel through the water inlet interface and the water inlet. A water outlet interface is provided on the water outlet, and cooling water is discharged from the water-cooling flow channel through the water outlet and the water outlet interface.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] Except for the positions of the water inlet and the water outlet, the overall height of the flow channel of the present utility model is 3.5 mm, while the flow channel height at the positions of the water inlet and the water outlet is separately designed to be 4.0 mm. After such modification, the overall pressure drop of the water-cooling plate is reduced to 19 KPa, thus meeting the requirement of 20 KPa for the water-cooling plate. By breaking the conventional design idea that a flow channel plate has only one flow channel height, the flow channel height at the water inlet and the water outlet is designed to be higher than that of other positions to reduce the overall pressure drop of the water-cooling plate and meet the requirements. Without increasing the cost, by changing the height of some flow channels to reduce the pressure drop, it will neither affect the overall battery structure and squeeze the space, nor can it meet the requirements of the product, which can be described as killing multiple birds with one stone. Description of the Drawings

[0015] Figure 1 is the front view of the flow channel design of a conventional stamping type liquid cooling plate;

[0016] Figure 2 is the left view of the flow channel design of a conventional stamping type liquid cooling plate;

[0017] Figure 3 is a conventional Figure 2 enlarged view of part A in;

[0018] Figure 4 is the front view of the water-cooling plate of the present utility model that can reduce the water-cooling pressure drop;

[0019] Figure 5 is the left view of the water-cooling plate of the present utility model that can reduce the water-cooling pressure drop;

[0020] Figure 6 is the Figure 5 enlarged view of part B in the present utility model.

[0021] In the figure: 1. bottom plate; 2. flow channel plate; 21. water-cooling flow channel; 22. water inlet; 23. water outlet. Detailed Embodiment

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] To solve the technical problem that the existing liquid cooling plate has a uniform flow channel design depth, the flow channel depth is 3.5 mm, but the water cooling plate requires a pressure drop of 20 KPa. When the flow channel depth is uniformly designed to be 3.5 mm, the pressure drop test result is 23 KPa, which does not meet the requirements. Please refer to Figures 1-6 , the present embodiment provides the following technical solutions:

[0024] A water cooling plate capable of reducing the water cooling pressure drop, including a bottom plate 1, a flow channel plate 2 is arranged on the bottom plate 1, a water cooling flow channel 21 is arranged on the flow channel plate 2, and a water inlet 22 and a water outlet 23 are also arranged on the flow channel plate 2. The water inlet 22 and the water outlet 23 are respectively located at both ends of the water cooling flow channel 21, and the water inlet 22 and the water outlet 23 are both communicated with the water cooling flow channel 21.

[0025] In this embodiment, a water inlet interface is arranged on the water inlet 22, and cooling water enters the water cooling flow channel 21 through the water inlet interface and the water inlet 22. A water outlet interface is arranged on the water outlet 23, and the cooling water is discharged from the water cooling flow channel 21 through the water outlet 23 and the water outlet interface.

[0026] It should be noted that the cooling water enters the water cooling flow channel 21 through the water inlet interface and the water inlet 22, and is cooled by the cooling water. After cooling, the cooling water in the water cooling flow channel 21 is discharged from the water cooling flow channel 21 through the water outlet 23 and the water outlet interface.

[0027] In this embodiment, the flow channel heights of the water inlet 22 and the water outlet 23 are both higher than the flow channel height of the water cooling flow channel 21.

[0028] Among them, the flow channel height of the water cooling flow channel 21 is 3.5 mm.

[0029] Among them, the flow channel heights of the water inlet 22 and the water outlet 23 are both 4.0 mm.

[0030] It should be noted that since the pressure drop test result of the conventional stamping liquid cooling plate flow channel is 23 KPa, which does not meet the requirement of 20 KPa for the water cooling plate, it is necessary to modify the flow channel to reduce the pressure drop. The place with the largest pressure drop is at the positions of the water inlet 22 and the water outlet 23. Therefore, when designing the flow channel, the flow channels at the positions of the water inlet 22 and the water outlet 23 are usually made as wide as possible. When the flow channels at the water inlet 22 and the water outlet 23 cannot be made wide due to restrictions, the height of the flow channels at the water inlet 22 and the water outlet 23 can be increased.

[0031] Therefore, except for the positions of the water inlet 22 and the water outlet 23, the overall height of the flow channel is 3.5 mm, and the height of the flow channels at the positions of the water inlet 22 and the water outlet 23 is separately designed to be 4.0 mm. After such modification, the overall pressure drop of the water cooling plate is reduced to 19 KPa, which can meet the requirement of 20 KPa for the water cooling plate.

[0032] By breaking the conventional design idea that a flow channel plate has only one flow channel height, and designing the flow channel heights at the water inlet 22 and the water outlet 23 to be higher than those at other positions to reduce the overall pressure drop of the water cooling plate and meet the requirements. Without increasing costs, by changing the heights of some flow channels to reduce the pressure drop, it will neither affect the overall battery structure and squeeze the space, nor can meet the requirements of the product, which can kill two birds with one stone.

[0033] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-cooling plate capable of reducing water-cooling pressure drop, comprising a bottom plate (1), characterized in that: A flow channel plate (2) is arranged on the bottom plate (1), a water cooling flow channel (21) is arranged on the flow channel plate (2), a water inlet (22) and a water outlet (23) are also arranged on the flow channel plate (2), and the water inlet (22) and the water outlet (23) are respectively located at two ends of the water cooling flow channel (21).

2. The water-cooling plate capable of reducing water-cooling pressure drop according to claim 1, characterized in that: The flow channel heights of the water inlet (22) and the water outlet (23) are both higher than the flow channel height of the water cooling flow channel (21).

3. A water-cooling plate capable of reducing water-cooling pressure drop according to claim 2, characterized in that: The flow channel height of the water cooling flow channel (21) is 3.5 mm.

4. The water-cooling plate capable of reducing water-cooling pressure drop according to claim 3, characterized in that: The flow channel heights of the water inlet (22) and the water outlet (23) are both 4.0 mm.

5. The water-cooling plate capable of reducing water-cooling pressure drop according to claim 4, characterized in that: The water inlet (22) and the water outlet (23) are both in communication with the water cooling channel (21).

6. The water-cooling plate capable of reducing water-cooling pressure drop according to claim 5, characterized in that: The water inlet (22) is provided with a water inlet interface, and cooling water enters the water cooling channel (21) through the water inlet interface and the water inlet (22); the water outlet (23) is provided with a water outlet interface, and cooling water is discharged from the water cooling channel (21) through the water outlet (23) and the water outlet interface.

Images