Liquid injection device and water-cooling test system

Abstract

The embodiment of the present application relates to the technical field of water cooling equipment, and discloses a liquid injection device and a water cooling test system, which comprise a water cooling assembly, the water cooling assembly is provided with a liquid outlet and a backflow port, a water outlet pipe, one end of the water outlet pipe is connected to the liquid outlet, the other end of the water outlet pipe is connectable to a liquid inlet end of a liquid cooling system, a backflow pipe, one end of the backflow pipe is connected to the backflow port, the other end of the backflow pipe is connectable to a liquid outlet end of the liquid cooling system, a connecting pipe, one end of the connecting pipe is communicated with the water outlet pipe, the other end of the connecting pipe is communicated with the backflow pipe, a first speed regulating valve, arranged on the water outlet pipe, the first speed regulating valve is used for regulating the flow of liquid in the water outlet pipe, and a second speed regulating valve, arranged on the connecting pipe, the second speed regulating valve is used for regulating the flow of liquid in the connecting pipe. Through the above mode, the embodiment of the present application can improve the accuracy of liquid flow regulation in the water outlet pipe.

Description

Technical Field

[0001] This application relates to the field of water-cooled equipment technology, and in particular to a liquid injection device and a water-cooled testing system. Background Technology

[0002] With the rapid development of new energy vehicles, the battery pack, as a core component, is of paramount importance in terms of performance and safety. Liquid-cooled battery packs manage battery temperature through a liquid cooling system, ensuring the battery remains within its optimal operating temperature range under various conditions. Liquid-cooled battery packs typically require water-cooling testing, which involves injecting liquid into the liquid cooling system using an injection device. Different liquid-cooled battery packs require different liquid flow rates; therefore, the liquid flow rate injected by the injection device needs to be adjusted according to the specific liquid-cooled battery pack being tested.

[0003] The inventors of this application have discovered that the accuracy of liquid flow rate adjustment in related technologies still needs improvement. Utility Model Content

[0004] In view of the above problems, this application provides a liquid injection device and a water-cooled testing system, which overcomes or at least partially solves the above problems.

[0005] According to one aspect of this application, a liquid injection device is provided, including a water-cooling assembly having a liquid outlet and a reflux outlet; a water outlet pipe, one end of which is connected to the liquid outlet, and the other end of which can be connected to the liquid inlet of the liquid cooling system; a reflux pipe, one end of which is connected to the reflux outlet, and the other end of which can be connected to the liquid outlet of the liquid cooling system; a connecting pipe, one end of which is connected to the water outlet pipe, and the other end of which is connected to the reflux pipe, the connecting pipe being located between the water outlet pipe and the reflux pipe; a first speed regulating valve disposed on the water outlet pipe for regulating the liquid flow rate through the water outlet pipe; and a second speed regulating valve disposed on the connecting pipe for regulating the liquid flow rate through the connecting pipe.

[0006] In one alternative embodiment, the outlet pipe includes a first horizontal pipe and a first vertical pipe connected to each other, the end of the first horizontal pipe opposite to the first vertical pipe is connected to the liquid outlet, the end of the first vertical pipe opposite to the first horizontal pipe is connected to the liquid inlet of the liquid cooling system, and the first speed regulating valve is located on the first vertical pipe.

[0007] In one alternative embodiment, the other end of the outlet pipe is connected to a first tee pipe, one end of which is provided with a first bidirectional shut-off valve, which can be used to connect to the liquid inlet of the liquid cooling system.

[0008] In one alternative embodiment, a first drain valve is provided at the other end of the first three-way pipe. The first drain valve can be in an open or closed state. When the first drain valve is in the open state, the liquid in the outlet pipe can flow out from the first drain valve.

[0009] In one alternative embodiment, a flow meter is also provided on the outlet pipe, the flow meter being located on the first vertical pipe and below the liquid flow of the first speed regulating valve.

[0010] In one alternative embodiment, the return pipe includes a second horizontal pipe and a second vertical pipe connected to each other. One end of the second horizontal pipe opposite to the second vertical pipe is connected to the return port. One end of the connecting pipe is connected to the first horizontal pipe, and the other end of the connecting pipe is connected to the second horizontal pipe. The end of the second vertical pipe opposite to the second horizontal pipe is connected to the liquid outlet of the liquid cooling system.

[0011] In one alternative embodiment, the return pipe further includes a third vertical pipe, a fourth vertical pipe, and an exhaust valve, the exhaust valve being located between the third vertical pipe and the fourth vertical pipe, the end of the third vertical pipe opposite to the exhaust valve being connected to the end of the second horizontal pipe opposite to the second vertical pipe, and the end of the fourth vertical pipe opposite to the exhaust valve being connected to the return port.

[0012] In one alternative embodiment, the other end of the return pipe is connected to a second tee pipe, one end of which is provided with a second bidirectional shut-off valve, which can be used to connect to the liquid outlet of the liquid cooling system.

[0013] In one alternative embodiment, a second drain valve is provided at the other end of the second three-way pipe. The second drain valve can be in an open or closed state. When the second drain valve is in the open state, the liquid in the return pipe can flow out from the second drain valve.

[0014] According to another aspect of this application, a water-cooled testing system is provided, including the liquid injection device as described above.

[0015] The beneficial effects of this application embodiment are as follows: Unlike the prior art, this application embodiment includes a water-cooling component, a water outlet pipe, a return pipe, a connecting pipe, a first speed-regulating valve, and a second speed-regulating valve. The water-cooling component has a liquid outlet and a return port. One end of the water outlet pipe is connected to the liquid outlet, and the other end can be connected to the liquid inlet of the liquid cooling system. One end of the return pipe is connected to the return port, and the other end can be connected to the liquid outlet of the liquid cooling system. One end of the connecting pipe is connected to the water outlet pipe, and the other end is connected to the return pipe. The connecting pipe is located between the water outlet pipe and the return pipe. The first speed-regulating valve is installed on the water outlet pipe and is used to regulate the liquid flow rate through the water outlet pipe. The second speed-regulating valve is installed on the connecting pipe and is used to regulate the liquid flow rate through the connecting pipe. In this application embodiment... Users can adjust the flow rate of liquid flowing through the connecting pipe by adjusting the second speed control valve. Since the connecting pipe is connected to the outlet pipe, the flow rate of liquid in the outlet pipe can be indirectly adjusted, thus achieving "coarse" adjustment of the flow rate. In addition, since the first speed control valve is directly installed on the outlet pipe, users can directly adjust the flow rate of liquid in the outlet pipe through the first speed control valve, thus achieving "fine" adjustment of the flow rate. Users can adjust the flow rate of liquid in the outlet pipe through the two speed control valves respectively, thereby improving the accuracy of the flow rate adjustment. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is a schematic diagram of the overall structure of the liquid injection device according to an embodiment of this application; Figure 2 This is a schematic diagram of an application state of the liquid injection device according to an embodiment of this application; Figure 3 This is a partial structural schematic diagram of the liquid injection device according to an embodiment of this application. Detailed Implementation

[0018] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0019] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0020] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0021] It should be noted that this application uses the liquid injection device applied to a liquid cooling system in a battery pack as an example. A liquid cooling system typically has an inlet and an outlet. The liquid injection device is connected to both the inlet and outlet. Liquid flows into the liquid cooling system from the inlet and out from the outlet. It is understood that the liquid injection device can also be used in the liquid cooling systems of other products, such as communication equipment and medical equipment.

[0022] Please see Figure 1 and Figure 2 The liquid injection device 1000 includes a water cooling component 10, a water outlet pipe 20, a return pipe 30, a connecting pipe 40, a first speed regulating valve 50, and a second speed regulating valve 60. The water outlet pipe 20 is connected to the liquid outlet 102 of the water cooling component 10, the return pipe 30 is connected to the return port 103 of the water cooling component 10, one end of the connecting pipe 40 is connected to the water outlet pipe 20, and the other end of the connecting pipe 40 is connected to the return pipe 30. The connecting pipe 40 is located between the water outlet pipe 20 and the return pipe 30. The first speed regulating valve 50 is disposed on the water outlet pipe 20, and the second speed regulating valve 60 is disposed on the connecting pipe 40. The following provides a detailed description of the water cooling component 10, the water outlet pipe 20, the return pipe 30, the connecting pipe 40, the first speed regulating valve 50, and the second speed regulating valve 60.

[0023] For the aforementioned water-cooled component 10, such as Figure 1 and Figure 2As shown, the water-cooled assembly 10 includes a housing (not shown), a refrigeration cycle assembly (not shown), and a cooling cycle assembly (not shown). The refrigeration cycle assembly is disposed within the housing and circulates the refrigerant. The cooling cycle assembly is disposed within the housing and connected to the refrigeration cycle assembly, circulating the coolant. The coolant can exchange heat with the refrigerant within the refrigeration cycle assembly. Since the structures of the refrigeration cycle assembly and the cooling cycle assembly are relatively existing, their structures are not specifically described in this application.

[0024] In some embodiments, the water-cooling assembly 10 is provided with an injection port 101, an outlet port 102, and a return port 103. The injection port 101 can be connected to an external storage tank. The injection port 101 is used for injecting external liquid, the outlet port 102 is used for liquid to flow out, and the return port 103 is used for liquid to flow back into the water-cooling assembly 10.

[0025] In some embodiments, the bottom of the water-cooling component 10 is provided with a movable roller (not shown). The movable roller can drive the water-cooling component 10 to move on the ground, thereby driving the entire liquid injection device 1000 to move on the ground to a preset position, so that the liquid injection device 1000 can inject liquid for the liquid cooling system of different battery packs.

[0026] For the aforementioned outlet pipe 20, return pipe 30, and connecting pipe 40, such as Figure 1 and Figure 2 As shown, one end of the water outlet pipe 20 is connected to the liquid outlet 102, and the other end of the water outlet pipe 20 can be connected to the liquid inlet 70a of the liquid cooling system. One end of the return pipe 30 is connected to the return port 103, and the other end of the return pipe 30 can be connected to the liquid outlet 70b of the liquid cooling system. One end of the connecting pipe 40 is connected to the water outlet pipe 20, and the other end of the connecting pipe 40 is connected to the return pipe 30. The connecting pipe 40 is located between the water outlet pipe 20 and the return pipe 30.

[0027] In some embodiments, please refer to the following: Figure 3 The outlet pipe 20 includes a first horizontal pipe 201 and a first vertical pipe 202 connected to each other. One end of the first horizontal pipe 201, away from the first vertical pipe 202, is connected to the outlet 102. The other end of the first vertical pipe 202, away from the first horizontal pipe 201, is connected to the inlet 70a of the liquid cooling system. Liquid flowing from the outlet 102 flows sequentially through the first horizontal pipe 201 and the first vertical pipe 202 into the inlet 70a of the liquid cooling system. The first vertical pipe 202 accelerates the flow of liquid; the liquid within the first vertical pipe 202 can flow faster under the influence of gravity.

[0028] In some embodiments, the other end of the outlet pipe 20 is connected to a first tee pipe 203, and one end of the first tee pipe 203 is provided with a first bidirectional shut-off valve 2031. The first bidirectional shut-off valve 2031 can be used to connect to the liquid inlet 70a of the liquid cooling system. The provision of the first bidirectional shut-off valve 2031 facilitates the installation and disassembly between the outlet pipe 20 and the liquid inlet 70a of the liquid cooling system. Since the first bidirectional shut-off valve 2031 has a self-closing property, it can reduce liquid outflow and pressure leakage in the outlet pipe 20 during installation and disassembly.

[0029] In some embodiments, a first drain valve 2032 is provided at the other end of the first three-way pipe 203. The first drain valve 2032 can be in an open or closed state. When the first drain valve 2032 is in the open state, the liquid in the outlet pipe 20 can flow out from the first drain valve 2032. When the user needs to drain the liquid in the outlet pipe 20, he / she can open the first drain valve 2032 to drain the liquid in the outlet pipe 20.

[0030] In some embodiments, a flow meter 20a is also provided on the outlet pipe 20, and the flow meter 20a is located on the first vertical pipe 202. The flow meter 20a can measure the liquid flow rate in the outlet pipe 20. In some embodiments, the flow meter 20a is located below the liquid flow of the first speed regulating valve 50, and the flow meter 20a can measure the liquid flow rate of the liquid flowing through the first speed regulating valve 50.

[0031] In some embodiments, the return pipe 30 includes a second horizontal pipe 301 and a second vertical pipe 302 connected to each other. One end of the second horizontal pipe 301 opposite to the second vertical pipe 302 is connected to the return port 103. One end of the connecting pipe 40 is connected to the first horizontal pipe 201, and the other end of the connecting pipe 40 is connected to the second horizontal pipe 301. The end of the second vertical pipe 302 opposite to the second horizontal pipe 301 is connected to the liquid outlet 70b of the liquid cooling system. Liquid flowing out of the liquid outlet 70b of the liquid cooling system flows through the second vertical pipe 302 and the second horizontal pipe 301 and flows to the return port 103 of the water cooling assembly 10. Part of the liquid in the first horizontal pipe 201 can enter the second horizontal pipe 301 through the connecting pipe 40 and flow to the return port 103 of the water cooling assembly 10.

[0032] In some embodiments, the return pipe 30 further includes a third vertical pipe 303, a fourth vertical pipe 304, and an exhaust valve 305. The exhaust valve 305 is located between the third vertical pipe 303 and the fourth vertical pipe 304. The end of the third vertical pipe 303 facing away from the exhaust valve 305 is connected to the end of the second horizontal pipe 301 facing away from the second vertical pipe 302. The end of the fourth vertical pipe 304 facing away from the exhaust valve 305 is connected to the return port 103. The second horizontal pipe 301 is connected to the return port 103 in sequence through the third vertical pipe 303, the exhaust valve 305, and the fourth vertical pipe 304. Liquid in the second horizontal pipe 301 can flow through the third vertical pipe 303, the exhaust valve 305, and the third vertical pipe 303 in sequence before entering the return port 103. The exhaust valve 305 allows gas in the return pipe 30 to be discharged.

[0033] In some embodiments, the other end of the return pipe 30 is connected to a second tee pipe 306, and one end of the second tee pipe 306 is provided with a second bidirectional shut-off valve 3061. The second bidirectional shut-off valve 3061 can be used to connect to the liquid outlet 70b of the liquid cooling system. The provision of the second bidirectional shut-off valve 3061 facilitates the installation and disassembly between the return pipe 30 and the liquid outlet 70b of the liquid cooling system. Since the second bidirectional shut-off valve 3061 has a self-closing property, it can reduce liquid outflow and pressure leakage in the return pipe 30 during installation and disassembly.

[0034] In some embodiments, a second drain valve 3062 is provided at the other end of the second three-way pipe. The second drain valve 3062 can be in an open or closed state. When the second drain valve 3062 is in the open state, the liquid in the return pipe 30 can flow out from the second drain valve 3062. When the user needs to drain the liquid in the return pipe 30, he / she can open the second drain valve 3062 to drain the liquid in the return pipe 30.

[0035] For the first speed control valve 50 and the second speed control valve 60 mentioned above, as Figure 1As shown, a first speed regulating valve 50 is installed on the outlet pipe 20, and is used to regulate the liquid flow rate through the outlet pipe 20. A second speed regulating valve 60 is installed on the connecting pipe 40, and is used to regulate the liquid flow rate through the connecting pipe 40. The user can adjust the liquid flow rate through the connecting pipe 40 by adjusting the second speed regulating valve 60. Since the connecting pipe 40 and the outlet pipe 20 are interconnected, the liquid flow rate in the outlet pipe 20 can be indirectly adjusted, thus achieving "coarse" adjustment. Since the first speed regulating valve 50 is directly installed on the outlet pipe 20, the user can directly adjust the liquid flow rate in the outlet pipe 20, thus achieving "fine" adjustment. The user can adjust the liquid flow rate in the outlet pipe 20 using both speed regulating valves, thereby improving the accuracy of the liquid flow rate adjustment. In some embodiments, the first speed regulating valve 50 is located on the first vertical pipe 202.

[0036] It should be noted that since the liquid flow rate from the outlet 102 varies, there are several possibilities. One possibility is that all the liquid flowing from the outlet 102 into the outlet pipe 20 can flow from the outlet pipe 20 through the first speed control valve 50 to the inlet 70a of the liquid cooling system. Another possibility is that a portion of the liquid flowing from the outlet 102 into the outlet pipe 20 can flow back to the return port 103 through the connecting pipe 40 and the second speed control valve 60, while another portion can flow through the outlet pipe 20 and the first speed control valve 50 to the inlet 70a of the liquid cooling system.

[0037] It is understood that the structures of the first speed regulating valve 50 and the second speed regulating valve 60 may be the same or different, and the liquid flow rates they regulate may be the same or different. Users can set these according to their actual needs, and no specific limitations are made in this application. In some embodiments, the liquid flow rate flowing out of the outlet pipe 20 after being regulated by the first speed regulating valve 50 may be between 2-50 L / min, for example: 5 L / min, 8 L / min, and 10 L / min.

[0038] In this embodiment, a water-cooling assembly 10, an outlet pipe 20, a return pipe 30, a connecting pipe 40, a first speed regulating valve 50, and a second speed regulating valve 60 are provided. The water-cooling assembly 10 has an outlet port 102 and a return port 103. One end of the outlet pipe 20 is connected to the outlet port 102, and the other end can be connected to the inlet port 70a of the liquid cooling system. One end of the return pipe 30 is connected to the return port 103, and the other end can be connected to the outlet port 70b of the liquid cooling system. One end of the connecting pipe 40 is connected to the outlet pipe 20, and the other end is connected to the return pipe 30. The connecting pipe 40 is located between the outlet pipe 20 and the return pipe 30. The first speed regulating valve 50 is disposed on the outlet pipe 20 and is used to regulate the flow rate of the liquid flowing through the outlet pipe 20. The second speed regulating valve 60 is disposed on the connecting pipe 40 and is used to regulate the flow rate of the liquid flowing through the connecting pipe 40. In this embodiment, the user can adjust the liquid flow rate through the connecting pipe 40 by adjusting the second speed regulating valve 60. Since the connecting pipe 40 is connected to the outlet pipe 20, the liquid flow rate in the outlet pipe 20 can be indirectly adjusted, thus achieving "coarse" adjustment of the liquid flow rate in the outlet pipe 20. In addition, since the first speed regulating valve 50 is directly installed on the outlet pipe 20, the user can directly adjust the liquid flow rate in the outlet pipe 20 through the first speed regulating valve 50, thus achieving "fine" adjustment of the liquid flow rate in the outlet pipe 20. The user can adjust the liquid flow rate in the outlet pipe 20 through the two speed regulating valves respectively, thereby improving the accuracy of the liquid flow rate adjustment in the outlet pipe 20.

[0039] This application also provides an embodiment of a water-cooled testing system, which includes the liquid injection device 1000 as described above. The function and structure of the liquid injection device 1000 can be found in the above embodiment, and will not be repeated here.

[0040] This application also provides an embodiment of a water-cooled testing system, which includes a liquid storage tank and a liquid injection device 1000 as described above. The liquid storage tank is connected to the liquid injection device 1000 and is connected to the liquid injection port, allowing liquid in the storage tank to flow into the liquid injection port. The function and structure of the liquid injection device 1000 can be found in the above embodiments and will not be described in detail here.

[0041] In some embodiments, the storage tank is connected to the vent valve via a pipeline, and the vent valve is in communication with the interior of the storage tank. It is understood that since the liquid in the storage tank is typically drawn into the pipeline by a pump, the "suction force" within the storage tank when the vent valve is in communication with the interior of the storage tank can increase the venting rate of the vent valve.

[0042] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A liquid injection device, applied to a liquid cooling system, characterized in that, include: A water-cooled assembly, wherein the water-cooled assembly is provided with a liquid outlet and a return outlet; A water outlet pipe, one end of which is connected to the liquid outlet, and the other end of which can be connected to the liquid inlet of the liquid cooling system; A return pipe, one end of which is connected to the return port, and the other end of which can be connected to the liquid outlet of the liquid cooling system; A connecting pipe, one end of which is connected to the outlet pipe and the other end of which is connected to the return pipe; A first speed regulating valve is installed on the water outlet pipe, and the first speed regulating valve is used to regulate the flow rate of liquid flowing through the water outlet pipe. A second speed regulating valve is installed on the connecting pipe, and the second speed regulating valve is used to regulate the flow rate of liquid flowing through the connecting pipe.

2. The liquid injection device according to claim 1, characterized in that, The water outlet pipe includes a first horizontal pipe and a first vertical pipe connected to each other. The end of the first horizontal pipe opposite to the first vertical pipe is connected to the liquid outlet, and the end of the first vertical pipe opposite to the first horizontal pipe is connected to the liquid inlet of the liquid cooling system. The first speed regulating valve is located on the first vertical pipe.

3. The liquid injection device according to claim 2, characterized in that, The other end of the outlet pipe is connected to a first tee pipe, and one end of the first tee pipe is equipped with a first bidirectional shut-off valve, which can be used to connect to the liquid inlet of the liquid cooling system.

4. The liquid injection device according to claim 3, characterized in that, The other end of the first three-way pipe is provided with a first drain valve, which can be in an open or closed state. When the first drain valve is in the open state, the liquid in the outlet pipe can flow out from the first drain valve.

5. The liquid injection device according to claim 2, characterized in that, A flow meter is also installed on the outlet pipe. The flow meter is located on the first vertical pipe and below the liquid flow of the first speed regulating valve.

6. The liquid injection device according to claim 2, characterized in that, The return pipe includes a second horizontal pipe and a second vertical pipe connected to each other. One end of the second horizontal pipe away from the second vertical pipe is connected to the return port. One end of the connecting pipe is connected to the first horizontal pipe, and the other end of the connecting pipe is connected to the second horizontal pipe. One end of the second vertical pipe away from the second horizontal pipe is connected to the liquid outlet of the liquid cooling system.

7. The liquid injection device according to claim 6, characterized in that, The return pipe also includes a third vertical pipe, a fourth vertical pipe, and an exhaust valve. The exhaust valve is located between the third vertical pipe and the fourth vertical pipe. The end of the third vertical pipe opposite to the exhaust valve is connected to the end of the second horizontal pipe opposite to the second vertical pipe. The end of the fourth vertical pipe opposite to the exhaust valve is connected to the return port.

8. The liquid injection device according to claim 1, characterized in that, The other end of the return pipe is connected to a second tee pipe, and one end of the second tee pipe is equipped with a second bidirectional shut-off valve, which can be used to connect to the liquid outlet of the liquid cooling system.

9. The liquid injection device according to claim 8, characterized in that, The other end of the second three-way pipe is provided with a second drain valve, which can be in an open or closed state. When the second drain valve is in the open state, the liquid in the return pipe can flow out from the second drain valve.

10. A water-cooled testing system, characterized in that, Includes the liquid injection device according to any one of claims 1-9.

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