Submerged battery pack inner liquid cooling pipeline

Abstract

This utility model discloses an immersion-type liquid cooling pipeline for a battery pack. An inlet connector is fixedly installed on the battery pack. One end of the inlet connector is connected to one end of an inlet hose via a first adapter on the inner side of the battery pack, and the other end of the inlet hose is connected to the main inlet pipeline via a second adapter. The first, second, third, and fourth inlet pipes are arranged in parallel, and their inlets are connected one-to-one with multiple outlets on the main inlet pipeline. Multiple spray nozzles are evenly arranged on the first, second, third, and fourth inlet pipes. The outlet connector is fixedly installed on the battery pack. This system enables highly efficient heat dissipation. When the cell temperature rises, this pipeline can completely immerse the cell in the coolant, achieving highly efficient heat exchange, with a heat dissipation efficiency far exceeding that of traditional cold plate cooling systems.

Description

Technical Field

[0001] This utility model relates to the field of battery cooling systems, specifically to a liquid cooling pipeline inside an immersion battery pack. Background Technology

[0002] Currently, battery cooling systems mainly use two methods: air cooling and liquid cooling. Liquid cooling systems primarily use cold plate cooling, but cold plate liquid cooling has some drawbacks: 1. High cost; 2. Complex design and manufacturing; 3. Difficult maintenance; 4. High safety and leakage risk; 5. Poor scalability. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model provides an immersion-type liquid cooling pipeline inside the battery pack, which can efficiently dissipate heat. When the cell temperature rises, this pipeline can completely immerse the cell in the coolant, achieving efficient heat exchange. The heat dissipation efficiency is far higher than that of the traditional cold plate type.

[0004] The technical solution of this utility model is: an internal liquid cooling pipeline for an immersion battery pack, including an inlet connector, a first adapter, an inlet hose, a second adapter, a main inlet pipeline, a first inlet pipe, a second inlet pipe, a third inlet pipe, a fourth inlet pipe, and an outlet connector.

[0005] The liquid inlet connector is fixedly installed on the battery pack. One end of the liquid inlet connector is connected to one end of the liquid inlet hose through the first adapter on the inside of the battery pack. The other end of the liquid inlet hose is connected to the liquid inlet main pipeline through the second adapter.

[0006] The first inlet pipe, the second inlet pipe, the third inlet pipe and the fourth inlet pipe are arranged in parallel, and the inlets of the first inlet pipe, the second inlet pipe, the third inlet pipe and the fourth inlet pipe are connected one-to-one with the multiple outlets on the main inlet pipe.

[0007] Multiple spray nozzles are evenly arranged on the first, second, third, and fourth liquid inlet pipes;

[0008] The liquid outlet connector is fixedly installed on the battery pack.

[0009] Furthermore, the second adapter is a three-way connector, and the end of the other end of the liquid inlet hose is cold-pressed into a quick connector, which is connected to the liquid inlet of the three-way connector through the quick connector. The two liquid outlets of the three-way connector are connected in series in the middle of the main liquid inlet pipeline.

[0010] Furthermore, the inlet hose is a nylon corrugated hose.

[0011] Furthermore, each of the first, second, third, and fourth inlet pipes is equipped with 24-28 spray nozzles.

[0012] Furthermore, a cut-off female is provided at one end of the outer side of the battery pack for the liquid inlet connector.

[0013] The working process of this liquid cooling pipeline is as follows: Low-temperature coolant is delivered from the stop female connector and inlet connector to the first, second, third, and fourth inlet pipes. Then, it is sprayed onto the battery cells inside the battery pack through the spray nozzles on the four inlet pipes. The low-temperature coolant absorbs heat, causing its temperature to rise. The high-temperature coolant flows out of the battery pack through the outlet connector. This completes one cycle, which is then repeated.

[0014] Compared with existing technologies, this utility model has the following advantages: 1. High-efficiency heat dissipation: When the battery cell temperature rises, this pipe can completely immerse the battery cell in the coolant, achieving efficient heat exchange. The heat dissipation efficiency is far higher than that of traditional cold plate type. 2. Improved energy utilization efficiency: This pipe significantly reduces the PUE of the data center and improves energy utilization efficiency. The PUE of the data center using this liquid-cooled pipe can be controlled below 1.1, while the PUE of traditional air-cooled data centers is usually above 1.8. 3. Adapts to high-density technology requirements. 4. Improves equipment reliability. 5. Saves space and coolant resources. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the liquid cooling pipeline in an immersion battery pack.

[0016] In the diagram: 1 is the inlet connector, 2 is the first adapter, 3 is the main inlet pipe, 4 is the second adapter, 5 is the first inlet pipe, 6 is the second inlet pipe, 7 is the third inlet pipe, 8 is the fourth inlet pipe, 9 is the outlet connector, 10 is the quick connector, and 11 is the shut-off female connector. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] like Figure 1 As shown, an internal liquid cooling pipeline for an immersion battery pack includes a female stop connector 11, an inlet connector 1 (M20 male stop connector), a first adapter 2, an inlet hose 12, a second adapter 4, an inlet main pipeline 3, a first inlet pipe 5, a second inlet pipe 6, a third inlet pipe 7, a fourth inlet pipe 8, and an outlet connector 9.

[0019] The liquid inlet connector 1 is fixedly installed on the battery pack. One end of the liquid inlet connector 1 is connected to one end of the liquid inlet hose 12 via the first adapter 2 on the inner side of the battery pack. A stop-loss female connector 11 is provided at the outer end of the liquid inlet connector 1. The other end of the liquid inlet hose 12 is connected to the main liquid inlet pipeline 3 via a second adapter 4. The second adapter 4 is a T-connector. The other end of the liquid inlet hose 12 is cold-pressed with a quick-connect connector 10, which connects to the liquid inlet of the T-connector. The two liquid outlets of the T-connector are connected in series in the middle of the main liquid inlet pipeline 3. The liquid inlet hose 12 is a nylon corrugated pipe with a diameter of ID14. The main liquid inlet pipeline 3 has a diameter of ID16.

[0020] The first inlet pipe 5, the second inlet pipe 6, the third inlet pipe 7, and the fourth inlet pipe 8 are arranged in parallel and have the same diameter of ID10. The inlets of the first inlet pipe 5, the second inlet pipe 6, the third inlet pipe 7, and the fourth inlet pipe 8 are connected one-to-one with the multiple outlets on the main inlet pipeline 3.

[0021] The first liquid inlet pipe 5, the second liquid inlet pipe 6, the third liquid inlet pipe 7 and the fourth liquid inlet pipe 8 are evenly arranged with 26 spray nozzles, for a total of 104 spray nozzles.

[0022] The liquid outlet connector 9 is fixedly installed on the battery pack.

[0023] The function of this liquid cooling system is to transfer the heat generated by the charging and discharging of the battery pack cells to the cooling unit via coolant. The working process is as follows: Low-temperature coolant is supplied from the stop connector and inlet connector to the first, second, third, and fourth inlet pipes. Then, it is sprayed onto the battery cells inside the battery pack through spray nozzles on the four inlet pipes. The low-temperature coolant absorbs heat, causing its temperature to rise. The high-temperature coolant flows out of the battery pack through the outlet connector. This completes one cycle, which is then repeated.

[0024] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An immersed liquid-cooled tube within a battery pack, characterized by: It includes an inlet connector (1), a first adapter (2), an inlet hose (12), a second adapter (4), an inlet main pipeline (3), a first inlet pipe (5), a second inlet pipe (6), a third inlet pipe (7), a fourth inlet pipe (8), and an outlet connector (9). The liquid inlet connector (1) is fixedly installed on the battery pack. One end of the liquid inlet connector (1) is connected to one end of the liquid inlet hose (12) through the first adapter (2) on the inner side of the battery pack. The other end of the liquid inlet hose (12) is connected to the liquid inlet main pipeline (3) through the second adapter (4). The first inlet pipe (5), the second inlet pipe (6), the third inlet pipe (7) and the fourth inlet pipe (8) are arranged in parallel, and the inlets of the first inlet pipe (5), the second inlet pipe (6), the third inlet pipe (7) and the fourth inlet pipe (8) are connected one-to-one with the multiple outlets on the main inlet pipeline (3); Multiple spray nozzles are evenly arranged on the first liquid inlet pipe (5), the second liquid inlet pipe (6), the third liquid inlet pipe (7) and the fourth liquid inlet pipe (8); The liquid outlet connector (9) is fixedly installed on the battery pack.

2. The liquid cooling pipe in the immersed battery pack according to claim 1, characterized in that: The second adapter (4) is a three-way connector. The end of the other end of the liquid inlet hose (12) is a quick-connect connector (10) that is cold-pressed. The quick-connect connector (10) is connected to the liquid inlet of the three-way connector. The two liquid outlets of the three-way connector are connected in series in the middle part of the liquid inlet main pipeline (3).

3. The liquid cooling pipe in the immersed battery pack according to claim 1, characterized in that: The inlet hose (12) is a nylon corrugated hose.

4. The liquid cooling pipe in the immersed battery pack according to claim 1, characterized in that: The first liquid inlet pipe (5), the second liquid inlet pipe (6), the third liquid inlet pipe (7) and the fourth liquid inlet pipe (8) are each equipped with 24-28 spray nozzles.

5. The liquid cooling pipe in the immersed battery pack according to claim 1, characterized in that: The liquid inlet connector (1) has a cut-off female connector (11) at one end of the outer side of the battery pack.

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