Battery cooling pipe fitting

By incorporating inclined baffles and guide channels into the battery cooling pipes, the problems of uneven cooling and low efficiency in existing battery cooling systems are solved, achieving uniform airflow distribution and increased speed, thereby improving cooling efficiency.

CN223977954UActive Publication Date: 2026-03-06JIAXING MASTER PLUMBING
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520455238.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-03-06
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

Existing battery cooling systems suffer from uneven cooling and low efficiency, especially in air-cooled and liquid-cooled systems, which are complex in structure and expensive.

Method used

Design a battery cooling pipe with a unique connection between the inlet pipe and the flow channel. An inclined baffle is set in the flow channel with an angle of 45° to the airflow direction. The surface is provided with guide grooves that gradually become shallower and narrower along the airflow direction to optimize airflow distribution, avoid turbulence, and improve cooling efficiency.

Benefits of technology

It achieves uniform distribution and increased speed of cooling airflow, significantly improving cooling efficiency, avoiding turbulence, and ensuring uniform cooling of all parts of the battery module.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223977954U_ABST
    Figure CN223977954U_ABST
Patent Text Reader

Abstract

The utility model provides a battery cooling pipe fitting which comprises a flow channel and an inlet pipe arranged at the top end of the flow channel, an adapter is arranged at one end of the flow channel, and a baffle of an inclined structure is arranged in the flow channel; wherein a flow guide groove is formed in the surface of the baffle, the flow guide groove extends from the windward end of the baffle to the leeward end of the baffle in the airflow flowing direction, and the depth and the width of the flow guide groove are gradually shallower and narrower from the windward end to the leeward end. The direction and speed of airflow entering the flow channel can be changed, the airflow is accelerated, and therefore the cooling efficiency is remarkably improved, the included angle between the baffle and the airflow direction is set to be 45 degrees, the airflow can obtain the optimal acceleration effect, the sufficient cooling speed is guaranteed, and the situation that the airflow is excessively dispersed or excessively large resistance is generated due to the fact that the angle is too large is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of battery cooling technology, and in particular to a battery cooling pipe fitting. Background Technology

[0002] With the rapid development of electric vehicles and energy storage systems, battery thermal management has become one of the key technologies. Batteries generate a lot of heat during operation, and if they cannot be dissipated in time, it will affect battery performance and lifespan.

[0003] Existing battery cooling systems typically employ either air cooling or liquid cooling. While air cooling is relatively simple in structure and lower in cost, it suffers from significant uneven cooling. In traditional air cooling systems, the flow path and velocity distribution of cooling airflow within the battery module are often difficult to control precisely. Although liquid cooling offers advantages over air cooling in terms of cooling efficiency, it also has some drawbacks. Liquid cooling systems usually require complex pipe layouts, coolant circulation devices, and sealing structures, which complicates the system structure and significantly increases costs, while also resulting in uneven cooling and low efficiency.

[0004] Therefore, there is an urgent need for a high-efficiency, simple-structure cooling pipe to improve battery cooling performance. Utility Model Content

[0005] To overcome existing problems, this application provides a battery cooling pipe with a unique connection between the inlet pipe and the flow channel. An inclined baffle is provided in the flow channel to change the direction and speed of the airflow after it enters the flow channel, thereby accelerating the airflow and significantly improving the cooling efficiency. The angle between the baffle and the airflow direction is set at 45°, so that the airflow can obtain the best acceleration effect, which ensures sufficient cooling speed without causing the airflow to be too dispersed or generating too much resistance due to the angle being too large.

[0006] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0007] A battery cooling pipe includes a flow channel, which is a key passage for the cooling airflow within the pipe. The flow channel is connected to and located inside an inlet pipe, and an inlet pipe is disposed at the top of the flow channel. The inlet pipe has a hollow structure and a smooth inner wall to reduce resistance when the airflow enters. As the inlet of the cooling airflow, the inlet pipe is responsible for connecting to an external cooling air source to ensure that the cooling airflow can smoothly enter the pipe. One end of the flow channel is provided with an adapter for connecting to a battery module or other related components to realize the transition of cooling airflow from the pipe to the battery module. An inclined baffle is provided inside the flow channel.

[0008] The baffle surface is provided with guide grooves that extend from the windward end to the leeward end along the airflow direction. The depth and width of the guide grooves gradually become shallower and narrower from the windward end to the leeward end. In order to further optimize the airflow distribution and avoid the generation of turbulence, guide grooves are set on the baffle surface. The shape and spacing of the guide grooves are carefully designed to guide the airflow to flow more orderly and form a more uniform distribution of airflow in the flow channel. The guide grooves can be designed as parallel grooves, which can effectively guide the airflow, reduce mutual interference between airflows, and ensure that the cooling airflow can evenly cover all parts of the battery module, thereby improving the uniformity of cooling.

[0009] Preferably, the angle between the baffle and the airflow direction is 45 degrees. When the cooling airflow is introduced into the flow channel from the inlet pipe and comes into contact with the inclined baffle, the airflow direction will change with the inclination angle of the baffle. During this process, the airflow is compressed and its kinetic energy increases, thereby achieving an increase in speed.

[0010] Preferably, the baffle is made of lightweight aluminum alloy with a certain strength and its surface is smoothed. The baffle and the interior of the flow channel are adjustable. Changing the angle of the baffle can change the flow rate of the airflow.

[0011] Preferably, the adapter has a hollow structure, the corners of the adapter are smoothed, and the adapter is connected to the air inlet of the battery pack by a threaded connection or a snap-fit ​​connection.

[0012] Preferably, a through hole is provided at the position corresponding to the inlet pipe in the flow channel, and the width of the baffle is greater than the cross-sectional diameter of the through hole, so that the baffle can accelerate the cooling airflow introduced by the inlet pipe in all directions.

[0013] The advantages of the embodiments of this application are:

[0014] 1. The inlet pipe is uniquely connected to the flow channel, and an inclined baffle is set in the flow channel to change the direction and speed of the airflow after entering the flow channel, thereby accelerating the airflow and significantly improving the cooling efficiency. The angle between the baffle and the airflow direction is set at 45°, so that the airflow can obtain the best acceleration effect, ensuring sufficient cooling speed without causing the airflow to be too dispersed or generating too much resistance due to an excessively large angle.

[0015] 2. A guide channel is set on the surface of the baffle. When the airflow passes through the baffle, the guide channel can further sort the airflow, optimize the airflow distribution, and effectively avoid the generation of turbulence. Turbulence will increase the energy loss of the airflow, reduce the cooling efficiency, and may also lead to uneven local cooling. Through the design of the guide channel, the airflow can flow more smoothly and orderly in the flow channel, thereby achieving a more uniform cooling effect. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of the battery cooling pipe of this utility model;

[0018] Figure 2 This is a front view schematic diagram of the battery cooling pipe of this utility model;

[0019] Figure 3 This is a schematic diagram of the overall structure connecting the flow channel and the adapter in the battery cooling pipe of this utility model;

[0020] Figure 4 This is a schematic diagram of the overall structure of the baffle in the battery cooling pipe of this utility model.

[0021] Explanation of key figure labels:

[0022] 1. Inlet pipe; 2. Flow channel; 3. Adapter; 4. Baffle; 5. Through hole; 6. Guide groove. Detailed Implementation

[0023] This application provides a battery cooling pipe to solve the problems in the prior art. The inlet pipe is uniquely connected to the flow channel, and an inclined baffle is set in the flow channel. This changes the direction and speed of the airflow after it enters the flow channel, accelerating the airflow and thus significantly improving the cooling efficiency. The angle between the baffle and the airflow direction is set at 45°, which allows the airflow to obtain the best acceleration effect, ensuring sufficient cooling speed without causing the airflow to be too dispersed or generating excessive resistance due to an excessively large angle. A guide groove is set on the surface of the baffle. When the airflow passes through the baffle, the guide groove can further sort the airflow, optimize the airflow distribution, and effectively avoid the generation of turbulence. Turbulence will increase the energy loss of the airflow, reduce the cooling efficiency, and may also cause uneven cooling in some areas. Through the design of the guide groove, the airflow can flow more smoothly and orderly in the flow channel, thereby achieving a more uniform cooling effect.

[0024] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0025] Example

[0026] This embodiment provides a specific structure for a battery cooling pipe, such as... Figure 1-4As shown, it includes a flow channel 2, which is the key channel for the cooling airflow to flow inside the pipe. It is connected to the inlet pipe 1 and is located inside the inlet pipe 1. The inlet pipe 1 is set at the top of the flow channel 2. The inlet pipe 1 has a hollow structure and a smooth inner wall to reduce the resistance when the airflow enters. The inlet pipe 1 serves as the inlet for the cooling airflow and is responsible for connecting to the external cooling air source to ensure that the cooling airflow can smoothly enter the pipe. One end of the flow channel 2 is provided with an adapter 3, which is used to connect the battery module or other related components to realize the transition of the cooling airflow from the pipe to the battery module. The flow channel 2 is provided with a baffle 4 with an inclined structure.

[0027] The baffle 4 has a flow guide groove 6 on its surface. The flow guide groove 6 extends from the windward end to the leeward end of the baffle 4 along the airflow direction. The depth and width of the flow guide groove 6 gradually become shallower and narrower from the windward end to the leeward end. In order to further optimize the airflow distribution and avoid the generation of turbulence, the flow guide groove 6 is set on the surface of the baffle 4. The shape and spacing of the flow guide groove 6 are carefully designed. They can guide the airflow to flow more orderly and make the airflow form a more uniform distribution in the flow channel. The flow guide groove 6 can be designed as a parallel groove, which can effectively guide the airflow, reduce the mutual interference between airflows, and ensure that the cooling airflow can evenly cover all parts of the battery module, thereby improving the uniformity of cooling.

[0028] The angle between the baffle 4 and the airflow direction is 45 degrees. When the cooling airflow is introduced into the flow channel from the inlet pipe 1 and comes into contact with the inclined baffle 4, the airflow direction will change with the inclination angle of the baffle 4. During this process, the airflow is compressed and its kinetic energy increases, thereby achieving an increase in speed.

[0029] The baffle 4 is made of lightweight and strong aluminum alloy with a smooth surface. The baffle 4 and the interior of the flow channel 2 are adjustable. Changing the angle of the baffle 4 can change the flow rate of the airflow.

[0030] The adapter 3 has a hollow structure and the corners of the adapter 3 are smoothed. The adapter 3 is connected to the air inlet of the battery pack by a threaded connection or a snap-fit ​​connection.

[0031] A through hole 5 is provided at the position corresponding to the flow channel 2 and the inlet pipe 1. The width of the baffle 4 is greater than the cross-sectional diameter of the through hole 5, so that the baffle 4 can accelerate the cooling airflow introduced by the inlet pipe 1 in all directions.

[0032] By adopting the above technical solution:

[0033] Cooling airflow enters from inlet pipe 1. As it passes through inclined baffle 4, the airflow velocity increases, forming a uniformly distributed high-speed airflow within the flow channel 2, thereby improving cooling efficiency. The design of inclined baffle 4 not only accelerates the airflow but also reduces airflow resistance, ensuring uniform cooling effect. The angle between baffle 4 and the airflow direction is 45 degrees to achieve the best acceleration effect. The surface of baffle 4 can be provided with guide grooves 6 to further optimize airflow distribution and avoid turbulence. The shape and spacing of the guide grooves 6 are carefully designed to guide the airflow to flow more orderly, making the airflow form a more uniform distribution within the flow channel. The guide grooves 6 can be designed as parallel grooves, which can effectively guide the airflow, reduce mutual interference between airflows, and ensure that the cooling airflow can uniformly cover all parts of the battery module, improving the uniformity of cooling.

[0034] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A battery cooling tube, characterized by, The utility model relates to a kind of air inlet pipe and battery pack air inlet connection structure, including flow channel (2), and the inlet pipe (1) being arranged at the top of the flow channel (2), one end of the flow channel (2) is equipped with adapter (3), the flow channel (2) is equipped with the baffle (4) of inclined structure in it; Wherein, the surface of the baffle (4) is equipped with flow guide groove (6), the flow guide groove (6) extends from the windward end of baffle (4) to the leeward end along the direction of airflow, and the depth and width of the flow guide groove (6) gradually become shallow and narrow from the windward end to the leeward end.

2. A battery cooling tube as claimed in claim 1, wherein, The included angle between the baffle (4) and the direction of airflow is forty-five degrees.

3. A battery cooling tube as defined in claim 1, wherein, The inlet pipe (1) is hollow structure, the inlet pipe (1) has smooth inner wall, for reducing the resistance when airflow enters.

4. A battery cooling tube as defined in claim 1, wherein, The baffle (4) uses lightweight and has certain strength aluminum alloy material, and its surface is smooth, the baffle (4) and the inside of the flow channel (2) are adjustable structure.

5. A battery cooling tube as defined in claim 1, wherein, The connection mode of the adapter (3) and battery pack air inlet is screw connection or buckle connection.

6. A battery cooling tube as defined in claim 1, wherein, The flow channel (2) and the inlet pipe (1) are provided with through hole (5) at corresponding position.

7. A battery cooling tube as claimed in claim 6, wherein, The width of the baffle (4) is greater than the cross-sectional diameter of the through hole (5).

8. A battery cooling tube as defined in claim 1, wherein, The adapter (3) is hollow structure, the corner of the adapter (3) is smooth.