Tool for detecting liquid leakage of interface between liquid cooling pipeline and battery pack

Abstract

The utility model relates to the technical field of interface liquid leakage detection, and discloses a tool for detecting liquid leakage of an interface between a liquid cooling pipeline and a battery pack, which comprises a first connecting pipe, a second connecting pipe, a third connecting pipe, a fourth connecting pipe, a fourth connecting pipe, a fifth connecting pipe and a sixth connecting pipe, the first end of the first connecting pipe is suitable for being connected with one water outlet of the liquid cooling pipeline, and the second end of the first connecting pipe is suitable for being connected with a water inlet of the battery pack; the first end of the second connecting pipe is suitable for being connected with one water inlet of the liquid cooling pipeline, and the second end of the second connecting pipe is suitable for being connected with a water outlet of the battery pack; the plug is suitable for plugging other water outlets and water inlets of the liquid cooling pipeline; and the liquid injection pump is provided with a liquid return opening and a liquid injection opening, the liquid return opening is suitable for being communicated with the cooling liquid source through a first liquid injection pipe, and the liquid injection opening is suitable for being connected with a liquid inlet of the liquid cooling machine through a second liquid injection pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of interface leakage detection, in particular to a tool for detecting leakage at an interface between a liquid cooling pipeline and a battery pack. Background Art

[0002] In recent years, the new energy industry has developed rapidly, and lithium batteries have been widely used in the energy storage industry. As the core component of lithium batteries, battery packs are mostly cooled by liquid cooling systems. The cooling source is provided by coolant, and the liquid cooling pipeline connects the liquid cooler and the battery pack to cool and dissipate heat from the battery pack.

[0003] Liquid cooling pipes and battery packs are often disassembled and transported, which may cause damage to the liquid cooling pipes and damage to the battery pack filling joints during disassembly and transportation. Therefore, it is necessary to quickly check whether the interfaces are leaking before installing the liquid cooling pipes and battery packs to the equipment. Utility Model Content

[0004] In view of this, the utility model provides a tool for inspecting leakage of the interface between the liquid cooling pipeline and the battery pack, which can quickly inspect whether the interface of the liquid cooling pipeline and the interface of the battery pack are leaking.

[0005] The utility model provides a tool for inspecting leakage of a liquid cooling pipeline and a battery pack interface, comprising:

[0006] a first connecting tube, wherein a first end of the first connecting tube is adapted to be connected to one of the water outlets of the liquid cooling pipeline, and a second end of the first connecting tube is adapted to be connected to the water inlet of the battery pack;

[0007] a second connecting pipe, wherein a first end of the second connecting pipe is adapted to be connected to one of the water inlets of the liquid cooling circuit, and a second end of the second connecting pipe is adapted to be connected to the water outlet of the battery pack;

[0008] Plugs, suitable for plugging the remaining water outlets and water inlets of the liquid cooling pipeline;

[0009] The liquid injection pump has a liquid return port and a liquid injection port. The liquid return port is suitable for being connected to a cooling liquid source through a first liquid injection pipe, and the liquid injection port is suitable for being connected to a liquid inlet of a liquid cooling machine through a second liquid injection pipe.

[0010] Beneficial effect: Before the liquid cooling pipeline and the battery pack are installed on the equipment, the first end of the first connecting pipe is connected to one of the water outlets of the liquid cooling pipeline, the second end of the first connecting pipe is connected to the water inlet of the battery pack, the first end of the second connecting pipe is connected to one of the water inlets of the liquid cooling pipeline, the second end of the second connecting pipe is connected to the water outlet of the battery pack, and the remaining water outlets and water inlets of the liquid cooling pipeline are blocked with a plug, the return port of the injection pump is connected to the cooling liquid source through the first injection pipe, and the injection port of the injection pump is connected to the liquid inlet of the liquid cooler through the second injection pipe. After the connection is completed, the liquid injection pump injects liquid into the liquid cooler, and the battery pack and the liquid cooling pipeline form a small cycle, which can quickly determine whether the connected battery pack interface is leaking, and whether the blocked interface of the liquid cooling pipeline is leaking. Therefore, when it is inconvenient to use the air tightness detection equipment, the operator can quickly and conveniently check whether the liquid cooling pipeline and battery pack to be installed in the equipment will leak, avoiding the situation where the liquid cooling pipeline and battery pack are installed and the equipment is ready to be injected with liquid. If leakage occurs, re-inspection and disassembly will be required at that time, reducing the occurrence of rework.

[0011] In an optional embodiment, a quick connector male is provided at the first end of the first connecting tube, a quick connector female is provided at the second end of the first connecting tube, the quick connector male is suitable for plugging with the quick connector female, a quick connector female is provided at the water outlet of the liquid cooling pipeline, and a quick connector male is provided at the water inlet of the battery pack.

[0012] Beneficial effect: By providing a quick connector male head at the first end of the first connecting tube and a quick connector female head at the second end of the first connecting tube, the first end of the first connecting tube can be quickly connected to one of the water outlets of the liquid cooling pipeline, and the second end of the first connecting tube can be quickly connected to the water inlet of the battery pack, thereby improving inspection efficiency.

[0013] In an optional embodiment, a quick connector male is provided at the first end of the second connecting tube, a quick connector female is provided at the second end of the second connecting tube, a quick connector female is provided at the water inlet of the liquid cooling pipeline, and a quick connector male is provided at the water outlet of the battery pack.

[0014] Beneficial effect: By providing a quick connector male head at the first end of the second connecting tube and a quick connector female head at the second end of the second connecting tube, the first end of the second connecting tube can be quickly connected to one of the water outlets of the liquid cooling pipeline, and the second end of the second connecting tube can be quickly connected to the water inlet of the battery pack, thereby improving inspection efficiency.

[0015] In an optional implementation, the female quick connector is L-shaped.

[0016] Beneficial effect: The female head of the quick connector is L-shaped, which is easier to connect.

[0017] In an optional implementation, the first connecting pipe is a hose.

[0018] Beneficial effect: The first connecting pipe is a hose, which is convenient for transportation and storage and is not easily damaged.

[0019] In an optional implementation, the second connecting pipe is a hose.

[0020] Beneficial effect: the second connecting pipe is a hose, which is convenient for transportation and storage and is not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the structure of a tool for inspecting leakage of a liquid cooling pipeline and a battery pack interface according to an embodiment of the utility model after being connected with a liquid cooling machine, a liquid cooling pipeline, and a battery pack during inspection;

[0023] Figure 2 for Figure 1 A is a partial enlarged schematic diagram;

[0024] Figure 3 for Figure 1 The main view of the liquid cooling pipeline;

[0025] Figure 4 for Figure 1 Left side view of the liquid cooling pipeline;

[0026] Figure 5 for Figure 2 Schematic diagram of the structure of the middle plug;

[0027] Figure 6 is a structural schematic diagram of a first connecting pipe;

[0028] Figure 7 for Figure 6 Schematic diagram of the structure of the male quick connector;

[0029] Figure 8 for Figure 6 Schematic diagram of the structure of the quick connector female.

[0030] Description of reference numerals:

[0031] 1. First connecting pipe; 2. Liquid cooling pipeline; 3. Battery pack; 4. Second connecting pipe; 5. Plug; 6. Liquid injection pump; 7. First liquid injection pipe; 8. Second liquid injection pipe; 9. Coolant source; 10. Liquid cooler; 11. Quick connector male head; 12. Quick connector female head. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0033] In recent years, the new energy industry has developed rapidly, and lithium batteries have been widely used in the energy storage industry. As the core component of lithium batteries, battery packs are mostly cooled by liquid cooling systems. The cooling source is provided by coolant, and the liquid cooling pipeline connects the liquid cooler and the battery pack to cool and dissipate heat from the battery pack.

[0034] Liquid cooling pipes and battery packs are often disassembled and transported, which may cause damage to the liquid cooling pipes and damage to the battery pack filling joints during disassembly and transportation. Therefore, it is necessary to quickly check whether the interfaces are leaking before installing the liquid cooling pipes and battery packs to the equipment.

[0035] In some usage environments, it is not convenient to use airtightness testing equipment to test the interface.

[0036] Combine the following Figures 1 to 8 , describing an embodiment of the utility model.

[0037] According to an embodiment of the utility model, a tool for inspecting leakage at an interface between a liquid cooling pipeline and a battery pack is provided, comprising a first connecting pipe 1 , a second connecting pipe 4 , a plug 5 and a liquid injection pump 6 .

[0038] Among them, the first end of the first connecting tube 1 is suitable for connecting to one of the water outlets of the liquid cooling pipeline 2, and the second end of the first connecting tube 1 is suitable for connecting to the water inlet of the battery pack 3; the first end of the second connecting tube 4 is suitable for connecting to one of the water inlets of the liquid cooling pipeline 2, and the second end of the second connecting tube 4 is suitable for connecting to the water outlet of the battery pack 3; the plug 5 is suitable for blocking the remaining water outlets and water inlets of the liquid cooling pipeline 2; the injection pump 6 has a return liquid port and an injection port, the return liquid port is suitable for connecting to the coolant source 9 through the first injection pipe 7, and the injection port is suitable for connecting to the liquid inlet of the liquid cooler 10 through the second injection pipe 8.

[0039] In this embodiment, before the liquid cooling pipeline 2 and the battery pack 3 are installed in the device, the first end of the first connecting pipe 1 is connected to one of the water outlets of the liquid cooling pipeline 2, the second end of the first connecting pipe 1 is connected to the water inlet of the battery pack 3, the first end of the second connecting pipe 4 is connected to one of the water inlets of the liquid cooling pipeline 2, the second end of the second connecting pipe 4 is connected to the water outlet of the battery pack 3, and the remaining water outlets and water inlets of the liquid cooling pipeline 2 are blocked by a plug 5, the return port of the injection pump 6 is connected to the coolant source 9 through the first injection pipe 7, and the injection port of the injection pump 6 is connected to the liquid cooling machine 1 through the second injection pipe 8. 0 is connected to the liquid inlet of the battery pack 3. After the connection is completed, the injection pump 6 injects liquid into the liquid cooler 10, and the battery pack 3 and the liquid cooling pipeline 2 form a small cycle, which can quickly determine whether the connected battery pack 3 interface is leaking, and whether the blocked interface of the liquid cooling pipeline 2 is leaking. Therefore, when it is inconvenient to use the airtightness detection equipment, the operator can quickly and conveniently check whether the liquid cooling pipeline 2 and the battery pack 3 to be installed in the equipment will leak, avoiding the situation where the liquid cooling pipeline 2 and the battery pack 3 are installed and the equipment is ready to be injected with liquid, and leakage occurs. At that time, re-inspection and disassembly are required to reduce the occurrence of rework.

[0040] It should be noted that Figure 1 The direction indicated by the middle arrow is the circulation direction of the coolant. When the injection pump 6 is working, the coolant is sucked into the injection pump 6 through the first injection pipe 7, and then transported to the liquid cooler 10 through the second injection pipe 8. The liquid cooler 10 transports the coolant to the liquid cooling pipeline 2 and fills the liquid cooling pipeline 2. At the same time, it flows into the battery pack 3 from the first connecting pipe 1, flows out of the battery pack 3, returns to the liquid cooling pipeline 2 through the second connecting pipe 4, and finally returns to the liquid cooler 10.

[0041] Specifically during the injection process, if leakage occurs and liquid flows out, observe which part it is. If it is leaking at the plug 5, on the premise of ensuring that the plug 5 itself is intact, it can be determined that there is a problem with the interface at the leaking location, and the interface at the leaking location needs to be checked.

[0042] If there is leakage at the connection between the first connecting pipe 1 and the liquid cooling pipeline 2, on the premise of ensuring that the first connecting pipe 1 is intact, it can be determined that there is a problem at the interface where the liquid cooling pipeline 2 connects to the first connecting pipe 1, and it is necessary to check the interface where the liquid cooling pipeline 2 leaks.

[0043] If there is leakage at the connection between the first connecting tube 1 and the battery pack 3, on the premise of ensuring that the first connecting tube 1 is intact, it can be determined that there is a problem at the interface where the battery pack 3 and the first connecting tube 1 are connected, and it is necessary to check the interface where the battery pack 3 is leaking.

[0044] If there is leakage at the connection between the second connecting pipe 4 and the liquid cooling pipeline 2, on the premise of ensuring that the second connecting pipe 4 is intact, it can be determined that there is a problem at the interface where the liquid cooling pipeline 2 and the second connecting pipe 4 are connected, and it is necessary to check the interface where the liquid cooling pipeline 2 leaks.

[0045] If the connection between the second connecting tube 4 and the battery pack 3 is leaking, on the premise of ensuring that the second connecting tube 4 is intact, it can be determined that there is a problem at the interface between the battery pack 3 and the second connecting tube 4, and the interface at the leaking location of the battery pack 3 needs to be checked.

[0046] If there is no leakage in the entire pipeline and the battery pack 3, the risk of leakage in the liquid cooling pipeline 2 is ruled out, and whether there is any problem with the interface of the battery pack 3 is also checked.

[0047] Afterwards, other battery packs 3 to be installed in the device are connected in turn, and the interfaces of the battery packs 3 are tested. If leakage occurs after connecting other battery packs 3, it can be quickly determined that there is a problem with the interface of the connected battery pack 3.

[0048] Specifically in one embodiment, Figure 1 As shown, the cooling liquid source 9 is a cooling liquid tank.

[0049] In one embodiment, a quick connector male head 11 is provided at the first end of the first connecting tube 1, a quick connector female head 12 is provided at the second end of the first connecting tube, the quick connector male head 11 is suitable for being plugged into the quick connector female head 12, the water outlet of the liquid cooling pipeline 2 is provided with a quick connector female head 12, and the water inlet of the battery pack 3 is provided with a quick connector male head 11.

[0050] In this embodiment, by providing a quick connector male head 11 at the first end of the first connecting tube 1 and a quick connector female head 12 at the second end of the first connecting tube, the first end of the first connecting tube 1 can be quickly connected to one of the water outlets of the liquid cooling pipeline 2, and the second end of the first connecting tube 1 can be quickly connected to the water inlet of the battery pack 3, thereby improving the inspection efficiency.

[0051] In one embodiment, a quick connector male head 11 is provided at the first end of the second connecting tube 4, a quick connector female head 12 is provided at the second end of the second connecting tube, a quick connector female head 12 is provided at the water inlet of the liquid cooling pipeline 2, and a quick connector male head 11 is provided at the water outlet of the battery pack 3.

[0052] In this embodiment, by providing a quick connector male head 11 at the first end of the second connecting tube 4 and a quick connector female head 12 at the second end of the second connecting tube, the first end of the second connecting tube 4 can be quickly connected to one of the water outlets of the liquid cooling pipeline 2, and the second end of the second connecting tube 4 can be quickly connected to the water inlet of the battery pack 3, thereby improving the inspection efficiency.

[0053] In one embodiment, the quick connector female connector 12 is L-shaped.

[0054] In this embodiment, the female quick connector 12 is L-shaped, which is more convenient for connection.

[0055] In one embodiment, the first connecting pipe 1 is a hose.

[0056] In this embodiment, the first connecting pipe 1 is a hose, which is convenient for transportation and storage and not easily damaged.

[0057] In one embodiment, the second connecting pipe 4 is a hose.

[0058] In this embodiment, the second connecting pipe 4 is a hose, which is convenient for transportation and storage and is not easily damaged.

[0059] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A tool for inspecting leakage at the interface between a liquid cooling pipeline and a battery pack, characterized in that: include: A first connecting tube (1), wherein a first end of the first connecting tube (1) is suitable for being connected to one of the water outlets of the liquid cooling pipeline (2), and a second end of the first connecting tube (1) is suitable for being connected to a water inlet of the battery pack (3); a second connecting tube (4), wherein a first end of the second connecting tube (4) is suitable for being connected to one of the water inlets of the liquid cooling pipeline (2), and a second end of the second connecting tube (4) is suitable for being connected to a water outlet of the battery pack (3); A plug (5) is suitable for plugging the remaining water outlets and water inlets of the liquid cooling pipeline (2); The liquid injection pump (6) has a liquid return port and a liquid injection port, wherein the liquid return port is suitable for being connected to a cooling liquid source (9) through a first liquid injection pipe (7), and the liquid injection port is suitable for being connected to a liquid inlet of a liquid cooling machine (10) through a second liquid injection pipe (8).

2. The tooling for inspecting leakage at the interface between the liquid cooling pipeline and the battery pack according to claim 1, characterized in that: The first end of the first connecting tube (1) is provided with a quick connector male head (11), the second end of the first connecting tube (1) is provided with a quick connector female head (12), the quick connector male head (11) is suitable for plugging with the quick connector female head (12), the water outlet of the liquid cooling pipeline (2) is provided with a quick connector female head (12), and the water inlet of the battery pack (3) is provided with a quick connector male head (11).

3. The tooling for inspecting leakage at the interface between the liquid cooling pipeline and the battery pack according to claim 2, characterized in that: The first end of the second connecting tube (4) is provided with a quick connector male head (11), the second end of the second connecting tube (4) is provided with a quick connector female head (12), the water inlet of the liquid cooling pipeline (2) is provided with a quick connector female head (12), and the water outlet of the battery pack (3) is provided with a quick connector male head (11).

4. The tooling for inspecting leakage at the interface between the liquid cooling pipeline and the battery pack according to claim 3, characterized in that: The quick connector female head (12) is L-shaped.

5. The tool for inspecting leakage of the interface between the liquid cooling pipeline and the battery pack according to any one of claims 1 to 4, characterized in that: The first connecting pipe (1) is a hose.

6. The tool for inspecting leakage of the interface between the liquid cooling pipeline and the battery pack according to any one of claims 1 to 4, characterized in that: The second connecting pipe (4) is a hose.

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