Cooling plate and detection device thereof

Abstract

The utility model provides a kind of cooling plate and its detection device, including cooling plate, multiple orderly arranged fins are equipped on the cooling plate;The fin includes oval fin, first arc fin and second arc fin are respectively equipped on the both sides of the oval fin, the distance between the first arc fin and the second arc fin and the oval fin is equal;First arc fin and second arc fin are respectively added on the both sides of oval fin, and first channel and second channel are increased, effectively enhance the cooling effect of cooling plate, improve uniformity.

Description

Technical Field

[0001] This utility model relates to the field of lithium-ion batteries, and in particular to a cooling plate and its detection device. Background Technology

[0002] As a crucial component of electric vehicles, automotive batteries occupy an extremely important position. Lithium-ion batteries are widely used in electric vehicles due to their high energy density. However, the heat generated during battery operation increases the risk of thermal runaway. The optimal operating range for lithium-ion batteries is 20 to 40 degrees Celsius, with the temperature difference between individual battery cells controlled within 5 degrees Celsius. Excessively high or low battery temperatures will affect the overall performance and lifespan of the battery.

[0003] Liquid cooling is widely used in electric vehicles due to its significant advantages, such as higher cooling efficiency, capacity, and suppression of temperature rise. Factors affecting cooling mainly include the shape of the channels, the direction of coolant flow, the number of channels, and their width. The flow channel structure has a significant impact on the performance of the cooling plate. Improving the heat dissipation performance of liquid cooling plates is an urgent problem to be solved. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of the prior art by providing a cooling plate that can improve the heat dissipation performance of a liquid cooling plate.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a cooling plate, including a cooling plate with a plurality of orderly arranged fins; The fins include elliptical fins, and a first arc-shaped fin and a second arc-shaped fin are respectively provided on both sides of the elliptical fins. The distances between the first arc-shaped fin and the second arc-shaped fin and the elliptical fin are equal.

[0006] Furthermore, the first arc-shaped fin and the second arc-shaped fin are symmetrically arranged with respect to the central axis of the elliptical fin.

[0007] Furthermore, a coolant inlet is formed at a distance between one end of the first arc-shaped fin and one end of the second arc-shaped fin, and a coolant outlet is formed at a distance between the other end of the first arc-shaped fin and the other end of the second arc-shaped fin.

[0008] Furthermore, the coolant inlet and the coolant outlet are respectively located at both ends of the Y-axis of the elliptical fin.

[0009] Furthermore, a cooling plate inlet is provided in the middle of one end of the cooling plate, and cooling plate outlets are provided on both sides of the other end of the cooling plate.

[0010] Furthermore, a cooling plate detection device is provided for detecting a cooling plate. The cooling plate includes a cooling plate, the cooling plate inlet of which is connected to a rotor liquid level meter via a pipe, the rotor liquid level meter is connected to the outlet end of a peristaltic pump via a pipe, and the inlet end of the peristaltic pump is connected to a constant temperature water bath via a pipe.

[0011] Furthermore, the constant temperature water bath is connected to one end of a temperature acquisition instrument, and the other end of the temperature acquisition instrument is connected to the cooling plate.

[0012] Furthermore, the cooling plate outlets on both sides of the cooling plate are connected to both sides of the liquid collection container via pipes.

[0013] Furthermore, multiple heating rods are installed on one side of the cooling plate.

[0014] Furthermore, the constant temperature water bath, the cooling plate, and the heating rod are all placed inside a constant temperature and humidity chamber.

[0015] The beneficial effects of this utility model are as follows: by adding a first arc-shaped fin and a second arc-shaped fin on both sides of the elliptical fin, and by increasing the first channel and the second channel, the cooling effect of the cooling plate is effectively enhanced and the temperature uniformity is improved. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a cooling plate; Figure 2 This is a schematic diagram of the fin structure; Figure 3 This is a schematic diagram of a cooling plate detection device; Figure 4 The graph shows the pressure drop, average temperature, and comprehensive evaluation index for different fin types when the coolant flow rate is 0.5 g / s. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0018] A cooling plate includes a cooling plate 1, wherein the cooling plate 1 is provided with a plurality of orderly arranged fins 2; The fin 2 includes an elliptical fin 201, and a first arc-shaped fin 202 and a second arc-shaped fin 203 are respectively provided on both sides of the elliptical fin 201. The distances between the first arc-shaped fin 202 and the second arc-shaped fin 203 and the elliptical fin 201 are equal.

[0019] The first arc-shaped fin 202 and the second arc-shaped fin 203 are symmetrically arranged with respect to the central axis of the elliptical fin 201.

[0020] One end of the first arc-shaped fin 202 and one end of the second arc-shaped fin 203 are spaced apart to form a coolant inlet 204, and the other end of the first arc-shaped fin 202 and the other end of the second arc-shaped fin 203 are spaced apart to form a coolant outlet 205.

[0021] The coolant inlet 204 and the coolant outlet 205 are respectively located at both ends of the Y-axis of the elliptical fin 201.

[0022] The cooling plate 1 has a cooling plate inlet 101 in the middle of one end, and cooling plate outlets 102 on both sides of the other end.

[0023] A cooling plate detection device is used to detect the aforementioned cooling plate; it also includes a cooling plate 1, wherein the cooling plate inlet 101 of the cooling plate 1 is connected to a rotor liquid level meter 301 via a pipe, the rotor liquid level meter 301 is connected to the outlet end of a peristaltic pump 302 via a pipe, and the inlet end of the peristaltic pump 302 is connected to a constant temperature water bath 303 via a pipe.

[0024] The constant temperature water bath 303 is connected to one end of the temperature acquisition instrument 304, and the other end of the temperature acquisition instrument 304 is connected to the cooling plate 1.

[0025] The cooling plate outlets 102 on both sides of the cooling plate 1 are connected to both sides of the liquid collection container 305 through pipes.

[0026] Multiple heating rods 308 are installed on one side of the cooling plate 1.

[0027] The constant temperature water bath 303, the cooling plate 1 and the heating rod 308 are all placed inside the constant temperature and humidity chamber 309.

[0028] Example 1:

[0029] like Figure 1 As shown, the fins 2 on the cooling plate 1 are arranged at equal intervals between rows and columns, and each row has three fins 3.

[0030] like Figure 2 As shown, the fin 2 includes an elliptical fin 201, which is arranged along the Y-axis, and the arc length of the first arc fin 202 and the second arc fin 203 is half the circumference of the elliptical fin 201. The first arc-shaped fin 202 and the second arc-shaped fin 203 are arranged alternately to form a coolant inlet 204 and a coolant outlet 205.

[0031] The area between the first arc-shaped fin 202 and the elliptical fin 201 is the first channel 206, and the area between the second arc-shaped fin 203 and the elliptical fin 201 is the second channel 207.

[0032] After the coolant flows into the cooling plate 1, it flows not only around the fins 2, but also into the coolant inlet 204. After passing through the first channel 206 and the second channel 207, it flows out from the coolant outlet 205.

[0033] In this embodiment, the dimensions of the fin 2 are given as follows: the width X1 of the coolant inlet 204 is 1 mm, the width X2 of the first arc-shaped fin 203 and the second arc-shaped fin 204 is 1 mm, and the width X3 of the first channel 206 and the second channel 207 is 0.5 mm.

[0034] like Figure 4 As shown, under a mass flow rate of 0.5 g / s, the average temperature of the cooling plate B2 is 0.05 degrees lower than that of the elliptical finned cooling plate B1, and the pressure drop is 0.03 Pa lower. Moreover, the overall performance index of the cooling plate B2 is 2% higher than that of the elliptical finned B1, indicating that increasing the number of channels is effective in reducing temperature and pressure drop.

[0035] To verify the accuracy of the numerical simulation, a cooling plate detection device will be used to compare it with the numerical simulation. The constant-temperature water bath 303 provides coolant at a stable temperature. A peristaltic pump 302 pumps the coolant from the constant-temperature water bath 303 into the inlet 101 of the cooling plate 1 via a rotor flow meter 301. The constant-temperature chamber maintains a constant ambient temperature. An aluminum block and heating rod 308 replace batteries. Five PT100 resistance thermometers are used to test the temperature of the liquid cooling plate, and one PT100 resistance thermometer is used to test the temperature of the constant-temperature water bath 303. Finally, a temperature acquisition instrument 304 records the data, and a computer 306 stores the data. A power supply 307 heats the heating rod 308. A constant-temperature and humidity chamber 309 ensures that the entire experimental environment remains at a constant temperature and humidity.

[0036] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be defined by the appended claims.

Claims

1. A cooling plate, characterized in that: Includes a cooling plate (1), on which a plurality of orderly arranged fins (2) are provided; The fin (2) includes an elliptical fin (201), and a first arc-shaped fin (202) and a second arc-shaped fin (203) are respectively provided on both sides of the elliptical fin (201). The distances between the first arc-shaped fin (202) and the second arc-shaped fin (203) and the elliptical fin (201) are equal.

2. A cooling plate according to claim 1, characterized in that: The first arc-shaped fin (202) and the second arc-shaped fin (203) are symmetrically arranged with respect to the central axis of the elliptical fin (201).

3. A cooling plate according to claim 2, characterized in that: One end of the first arc-shaped fin (202) and one end of the second arc-shaped fin (203) are spaced apart to form a coolant inlet (204), and the other end of the first arc-shaped fin (202) and the other end of the second arc-shaped fin (203) are spaced apart to form a coolant outlet (205).

4. A cooling plate according to claim 3, characterized in that: The coolant inlet (204) and the coolant outlet (205) are respectively located at both ends of the Y-axis of the elliptical fin (201).

5. A cooling plate according to claim 1, characterized in that: The cooling plate (1) has a cooling plate inlet (101) in the middle of one end, and cooling plate outlets (102) are provided on both sides of the other end of the cooling plate (1).

6. A cooling plate detection device, characterized in that: For the purpose of detecting a cooling plate as described in any one of claims 1 to 5; further comprising a cooling plate (1), wherein the cooling plate inlet (101) of the cooling plate (1) is connected to a rotor liquid level meter (301) via a pipe, the rotor liquid level meter (301) is connected to the outlet end of a peristaltic pump (302) via a pipe, and the inlet end of the peristaltic pump (302) is connected to a constant temperature water bath (303) via a pipe.

7. A cooling plate detection device according to claim 6, characterized in that: The constant temperature water bath (303) is connected to one end of the temperature acquisition instrument (304), and the other end of the temperature acquisition instrument (304) is connected to the cooling plate (1).

8. The cooling plate detection device according to claim 7, characterized in that: The cooling plate outlets (102) on both sides of the cooling plate (1) are connected to both sides of the liquid collection container (305) through pipes.

9. A cooling plate detection device according to claim 8, characterized in that: Multiple heating rods (308) are installed on one side of the cooling plate (1).

10. A cooling plate detection device according to claim 9, characterized in that: The constant temperature water bath (303), the cooling plate (1) and the heating rod (308) are all placed in a constant temperature and humidity chamber (309).

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