Flow equalizing pipeline system and liquid cooling equipment

By designing a flow equalization pipeline system, including multiple pipelines and telescopic sleeves, the problem of excessive temperature difference caused by uneven flow in lithium-ion battery energy storage systems was solved, achieving uniform flow distribution and reduced vibration, thus improving the liquid cooling effect.

CN223771190UActive Publication Date: 2026-01-06广州融捷能源科技有限公司
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Patent Information

Application Number
CN202423161585.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-01-06
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

In the thermal management system of existing lithium-ion battery energy storage systems, uneven flow in the battery pack leads to excessive temperature differences, affecting the liquid cooling effect.

Method used

A flow equalization pipeline system is adopted, including the first to sixth pipelines and the expansion sleeve. The flow is evenly distributed through the design of valves and connecting pipelines, and the expansion sleeve is set to adjust the connection position, avoid the parallel operation of the outlet and return water pipelines, and reduce the impact of vibration.

Benefits of technology

This achieves uniform flow rate for each battery pack, solves the problem of excessive temperature difference, reduces the impact of vibration, and improves the liquid cooling effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of liquid cooling, and particularly relates to a flow equalizing pipeline system and liquid cooling equipment, which comprises a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a sixth pipeline and a telescopic sleeve respectively communicated with the first pipeline, the second pipeline and the third pipeline. In the first state, the fourth pipeline communicates with the second pipeline and the third pipeline, the fifth pipeline communicates with the fourth pipeline and the sixth pipeline, and the fifth pipeline communicates with the sixth pipeline through the first valve. By arranging the second pipeline and the third pipeline, liquid in the first pipeline can be shunted out, so that the flow equalizing effect is achieved, and by arranging the telescopic sleeve, the connecting position of the second pipeline and the third pipeline can be adjusted according to actual requirements.
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Description

Technical Field

[0001] This utility model belongs to the technical field of liquid cooling, specifically relating to a flow equalization pipeline system and liquid cooling equipment. Background Technology

[0002] With the continuous development of lithium-ion battery technology, its energy storage systems are being used in an increasingly wide range of applications, appearing in many scenarios. Energy storage systems typically consist of multiple battery packs, with piping systems installed within the storage device. These, along with liquid cooling units and liquid cooling plates, form a heat pipe system to dissipate the heat generated by the batteries during use.

[0003] Conventional thermal management systems consist of liquid cooling units, piping systems, and liquid cooling plates. The outlet and return water pipes of the piping system are parallel, which results in uneven flow into each battery pack. This uneven flow leads to excessive temperature differences, making the liquid cooling effect less than ideal.

[0004] Therefore, there is an urgent need to propose a new technical solution to address the above problems. Utility Model Content

[0005] One of the objectives of this invention is to provide a flow equalization pipeline system that addresses the shortcomings of existing technologies, enabling more uniform flow into each battery pack and solving the problem of excessive temperature difference caused by uneven flow.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A flow equalization pipeline system includes a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a sixth pipeline, and a telescopic sleeve. The telescopic sleeve is connected to the first pipeline, the second pipeline, and the third pipeline, respectively. In a first state, the fourth pipeline is connected to the second pipeline and the third pipeline, and the fifth pipeline is connected to the fourth pipeline and the sixth pipeline, respectively. The fifth pipeline and the sixth pipeline are connected through a first valve.

[0008] Preferably, the second pipeline is connected to a plurality of first connecting pipes, and the fourth pipeline is connected to a plurality of second connecting pipes, wherein the second connecting pipes and the first connecting pipes are connected in the first state.

[0009] Preferably, the third pipeline is connected to a plurality of third connecting pipes, and in the first state, the third connecting pipes are connected to the second connecting pipes.

[0010] Preferably, the telescopic sleeve includes a connecting pipe and a first telescopic pipe, wherein the first telescopic pipe is connected to the connecting pipe and the second pipeline respectively.

[0011] Preferably, the connecting pipe is sleeved on the outside of the first telescopic pipe, and a first sealing element is provided between the connecting pipe and the first telescopic pipe.

[0012] Preferably, the telescopic sleeve further includes a second telescopic tube, which is connected to the connecting pipe and the third pipeline respectively.

[0013] Preferably, the connecting pipe is sleeved on the outside of the second telescopic pipe, and a second sealing element is provided between the connecting pipe and the second telescopic pipe.

[0014] Preferably, the fifth conduit includes a first conduit and a second conduit, which are connected by a first fixing member.

[0015] Preferably, the telescopic sleeve and the first pipeline are connected by a second fixing member.

[0016] Preferably, a second valve is provided on the fourth pipeline, and the second valve is connected to the fourth pipeline.

[0017] The second objective of this utility model is to provide a liquid cooling device, comprising a flow equalization pipeline system, a liquid cooling unit, and a plurality of liquid cooling plates, wherein the flow equalization pipeline system is as described above, and the liquid cooling unit is connected to the first pipeline and the sixth pipeline respectively.

[0018] The liquid cooling plate is connected to the second pipeline and the fourth pipeline respectively; or

[0019] The liquid cooling plate is connected to the third pipeline and the fourth pipeline respectively.

[0020] The beneficial effects of this utility model are as follows: This utility model includes a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a sixth pipeline, and a telescopic sleeve. The telescopic sleeve is connected to the first pipeline, the second pipeline, and the third pipeline respectively. In the first state, the fourth pipeline is connected to the second pipeline and the third pipeline respectively. The first state is the working state. The fifth pipeline is connected to the fourth pipeline and the sixth pipeline respectively. The fifth pipeline and the sixth pipeline are connected through a first valve. The first pipeline is a primary water outlet pipeline, and an outlet plug is provided at one end of the first pipeline for connecting to external equipment. The telescopic sleeve is a tee pipeline. The second pipeline and the third pipeline are both secondary water outlet pipelines. The fourth pipeline is a secondary return water pipeline. The fifth pipeline is a primary return water pipeline. The sixth pipeline is a primary return water pipeline, and a return water plug is provided at one end of the sixth pipeline for connecting to external equipment. The first valve is an air vent valve, which can release the gas in the pipeline during operation to avoid affecting the flow equalization effect. By setting up a second and third pipeline, the liquid in the first pipeline can be diverted out, thereby achieving a uniform flow effect. This ensures that the flow rate entering each battery pack is uniform, solving the problem of excessive temperature difference caused by uneven flow. Furthermore, the installation of a telescopic sleeve allows the connection position of the second and third pipelines to be adjusted according to actual flow distribution requirements. Additionally, the parallel arrangement of the outlet and return water pipelines avoids the impact of vibration. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 or Embodiment 2 of this utility model.

[0022] Figure 2 This is an exploded view of the telescopic sleeve of this utility model.

[0023] Figure 3 This is a cross-sectional view of the telescopic sleeve of this utility model.

[0024] Figure 4 This is a schematic diagram of the overall structure of Embodiment 3 of this utility model.

[0025] Wherein: 1. First pipeline; 2. Second pipeline; 21. First connecting pipe; 3. Third pipeline; 31. Third connecting pipe; 4. Fourth pipeline; 41. Second connecting pipe; 42. Second valve; 5. Fifth pipeline; 51. First conduit; 52. Second conduit; 53. First fixing component; 6. Sixth pipeline; 7. Telescopic sleeve; 71. Connecting pipe; 72. First telescopic pipe; 73. First sealing component; 74. Second telescopic pipe; 75. Second sealing component; 8. First valve; 9. Second fixing component; 01. Liquid cooling unit; 02. Liquid cooling plate. Detailed Implementation

[0026] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." In this utility model, unless otherwise explicitly specified and limited, terms such as "installed," "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] The following is in conjunction with the appendix Figures 1-4 The present invention will be further described in detail with reference to specific embodiments, but this is not intended to limit the present invention.

[0028] Example 1

[0029] A flow equalization pipeline system includes a first pipeline 1, a second pipeline 2, a third pipeline 3, a fourth pipeline 4, a fifth pipeline 5, a sixth pipeline 6, and a telescopic sleeve 7. The telescopic sleeve 7 is connected to the first pipeline 1, the second pipeline 2, and the third pipeline 3, respectively. In a first state (working state), the fourth pipeline 4 is connected to the second pipeline 2 and the third pipeline 3, respectively. The fifth pipeline 5 is connected to the fourth pipeline 4 and the sixth pipeline 6, respectively. The fifth pipeline 5 and the sixth pipeline 6 are connected through a first valve 8. The first pipeline 1 is the primary outlet. The piping system includes: a first pipe 1 with an outlet connector at one end for connection to external equipment; a telescopic sleeve 7 (a tee pipe); second and third pipes 2 and 3 (both secondary outlet pipes); a fourth pipe 4 (a secondary return pipe); a fifth pipe 5 (a primary return pipe); and a sixth pipe 6 (a primary return pipe), with a return connector at one end for connection to external equipment; and a first valve 8 (an air vent valve to release gas from the piping during operation, preventing interference with flow equalization). By using second and third pipes 2 and 3, the liquid in the first pipe 1 can be diverted, achieving flow equalization and ensuring uniform flow into each battery pack. This solves the problem of excessive temperature differences caused by uneven flow. Furthermore, the telescopic sleeve 7 allows for adjustment of the connection positions of second and third pipes 2 and 3 according to actual flow distribution requirements. Additionally, avoiding parallel flow between the outlet and return pipes reduces vibration impact.

[0030] In this embodiment, several first connecting pipes 21 are connected to the second pipeline 2, and several second connecting pipes 41 are connected to the fourth pipeline 4. In the first state, the second connecting pipes 41 and the first connecting pipes 21 are connected. The connection between the second pipeline 2 and the fourth pipeline 4 can be achieved by adjusting the connection angle of the first connecting pipes 21 or the second connecting pipes 41, which improves the applicability of the connection between the second pipeline 2 and the fourth pipeline 4 and adapts to installation in different environments. One end of the first connecting pipe 21 is provided with a first nozzle plug, and one end of the second connecting pipe 41 is provided with a second nozzle plug. Both the first nozzle plug and the second nozzle plug are used to connect with external equipment. The first connecting pipe 21 and the second pipeline 2 can be connected through a T-joint, and the second connecting pipe 41 and the fourth pipeline 4 can also be connected through a T-joint.

[0031] In this embodiment, several third connecting pipes 31 are connected to the third pipeline 3. In the first state, the third connecting pipes 31 and the second connecting pipe 41 are connected. The connection between the third pipeline 3 and the fourth pipeline 4 can be achieved by adjusting the connection angle of the third connecting pipe 31 or the second connecting pipe 41, which improves the applicability of the connection between the third pipeline 3 and the fourth pipeline 4. One end of the third connecting pipe 31 is provided with a third nozzle plug, which is used to connect with external equipment. The third connecting pipe 31 and the third pipeline 3 can also be connected by a tee connector.

[0032] Example 2

[0033] The difference between this embodiment and Embodiment 1 is that the telescopic sleeve 7 includes a connecting pipe 71 and a first telescopic pipe 72. The first telescopic pipe 72 is connected to both the connecting pipe 71 and the second pipe 2. The connecting pipe 71 is a threaded tee pipe, and the first telescopic pipe 72 is a threaded pipe. One end of the first telescopic pipe 72 is connected to one end of the connecting pipe 71, and the other end of the first telescopic pipe 72 is connected to the second pipe 2. The first telescopic pipe 72 and the connecting pipe 71 are connected by threads. The connection length between the first telescopic pipe 72 and the connecting pipe 71 can be adjusted by rotating the first telescopic pipe 72, thereby adjusting the position of the second pipe 2.

[0034] In this embodiment, the connecting pipe 71 is sleeved on the outside of the first telescopic pipe 72, and a first sealing element 73 is provided between the connecting pipe 71 and the first telescopic pipe 72. The first sealing element 73 is a rubber ring. By providing the first sealing element 73, the sealing effect between the connecting pipe 71 and the first telescopic pipe 72 can be improved.

[0035] In this embodiment, the telescopic sleeve 7 further includes a second telescopic tube 74, which is connected to both the connecting tube 71 and the third pipe 3. The second telescopic tube 74 is a threaded pipe, with one end connected to one end of the connecting tube 71 and the other end connected to the third pipe 3. The second telescopic tube 74 and the connecting tube 71 are connected by a thread, and the connection length between the second telescopic tube 74 and the connecting tube 71 can be adjusted by rotating the second telescopic tube 74, thereby adjusting the position of the third pipe 3.

[0036] In this embodiment, the connecting pipe 71 is sleeved on the outside of the second telescopic pipe 74, and a second sealing element 75 is provided between the connecting pipe 71 and the second telescopic pipe 74. The second sealing element 75 is a rubber ring. By providing the second sealing element 75, the sealing effect between the connecting pipe 71 and the second telescopic pipe 74 can be improved.

[0037] In this embodiment, the fifth pipeline 5 includes a first conduit 51 and a second conduit 52. The first conduit 51 and the second conduit 52 are connected by a first fixing member 53. The first fixing member 53 is a wall-penetrating member and can be made of hard metal, such as iron, for passing through obstacles.

[0038] In this embodiment, the telescopic sleeve 7 and the first pipeline 1 are connected by a second fixing member 9. The second fixing member 9 is a wall-penetrating member, which can be made of hard metal, such as iron, and is used to pass through obstacles.

[0039] In this embodiment, a second valve 42 is provided on the fourth pipeline 4, and the second valve 42 is connected to the fourth pipeline 4. The second valve 42 is a drain valve, used to drain water from the pipeline.

[0040] The other structures in this embodiment are the same as those in Embodiment 1, and will not be described again here.

[0041] Example 3

[0042] A liquid cooling device includes a flow equalization piping system, a liquid cooling unit 01, and a plurality of liquid cooling plates 02. The flow equalization piping system is as described in Embodiment 1 or Embodiment 2. The liquid cooling unit 01 is connected to a first pipe 1 and a sixth pipe 6.

[0043] Liquid cooling plate 02 is connected to the second pipe 2 and the fourth pipe 4 respectively; or

[0044] The liquid cooling plate 02 is connected to the third pipe 3 and the fourth pipe 4 respectively.

[0045] The liquid cooling unit 01 is used to realize the liquid circulation in the pipeline, and the liquid cooling plate 02 is used to cool the battery pack.

[0046] Obviously, this utility model includes a first pipe, a second pipe, a third pipe, a fourth pipe, a fifth pipe, a sixth pipe, and a telescopic sleeve. The telescopic sleeve is connected to the first pipe, the second pipe, and the third pipe respectively. In the first state, the fourth pipe is connected to the second pipe and the third pipe respectively. The first state is the working state. The fifth pipe is connected to the fourth pipe and the sixth pipe respectively. The fifth pipe and the sixth pipe are connected through a first valve. The first pipe is a primary water outlet pipe, and an outlet plug is provided at one end of the first pipe for connecting to external equipment. The telescopic sleeve is a tee pipe. The second pipe and the third pipe are both secondary water outlet pipes. The fourth pipe is a secondary return water pipe. The fifth pipe is a primary return water pipe. The sixth pipe is a primary return water pipe, and a return water plug is provided at one end of the sixth pipe for connecting to external equipment. The first valve is an air vent valve, which can release the gas in the pipe during operation to avoid affecting the flow equalization effect. By setting up a second and third pipeline, the liquid in the first pipeline can be diverted out, thereby achieving a uniform flow effect. This ensures that the flow rate entering each battery pack is uniform, solving the problem of excessive temperature difference caused by uneven flow. Furthermore, the installation of a telescopic sleeve allows the connection position of the second and third pipelines to be adjusted according to actual flow distribution requirements. Additionally, the parallel arrangement of the outlet and return water pipelines avoids the impact of vibration.

[0047] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on the utility model are within the protection scope of the utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the utility model.

Claims

1. A flow equalizing conduit system, characterized in that The first pipe (1), the second pipe (2), the third pipe (3), the fourth pipe (4), the fifth pipe (5), the sixth pipe (6) and the telescopic sleeve (7) are connected respectively, the fourth pipe (4) is connected with the second pipe (2) and the third pipe (3) respectively in the first state, the fifth pipe (5) is connected with the fourth pipe (4) and the sixth pipe (6) respectively, and the fifth pipe (5) and the sixth pipe (6) are connected through the first valve (8).

2. The equal flow line system of claim 1, wherein, A plurality of first connecting pipes (21) are connected to the second pipe (2), a plurality of second connecting pipes (41) are connected to the fourth pipe (4), and the second connecting pipe (41) and the first connecting pipe (21) are connected in the first state.

3. The equal flow line system of claim 2, wherein, A plurality of third connecting pipes (31) are connected to the third pipe (3), and the third connecting pipe (31) and the second connecting pipe (41) are connected in the first state.

4. The equal flow tubing system of claim 1, wherein, The telescopic sleeve (7) comprises a connecting pipe (71) and a first telescopic pipe (72), and the first telescopic pipe (72) is connected to the connecting pipe (71) and the second pipe (2) respectively.

5. The equal flow line system of claim 4, wherein, The connecting pipe (71) is sleeved outside the first telescopic pipe (72), and a first sealing piece (73) is arranged between the connecting pipe (71) and the first telescopic pipe (72).

6. The equal flow path system of claim 4, wherein, The telescopic sleeve (7) further comprises a second telescopic pipe (74), the second telescopic pipe (74) is connected to the connecting pipe (71) and the third pipe (3) respectively, the connecting pipe (71) is sleeved outside the second telescopic pipe (74), and a second sealing piece (75) is arranged between the connecting pipe (71) and the second telescopic pipe (74).

7. The equal flow tubing system of claim 1, wherein, The fifth pipe (5) comprises a first conduit (51) and a second conduit (52), and the first conduit (51) and the second conduit (52) are connected through a first fixing piece (53).

8. The equal flow tubing system of claim 1, wherein, The telescopic sleeve (7) and the first pipe (1) are connected through a second fixing piece (9).

9. The equal flow tubing system of claim 1, wherein, The fourth pipe (4) is provided with a second valve (42), and the second valve (42) is connected to the fourth pipe (4).

10. A liquid cooling device, characterized by, The liquid cooling unit (01) is connected to the first pipe (1) and the sixth pipe (6) respectively, The liquid cooling plate (02) is connected to the second pipe (2) and the fourth pipe (4) respectively; or The liquid cooling plate (02) is connected to the third pipe (3) and the fourth pipe (4) respectively.