Sealing test system

Abstract

The embodiment of the utility model discloses a sealing test system. The sealing test system is used for carrying out a sealing test on a tested device. The sealing test system comprises a test branch, a fluid inlet pipeline, a fluid outlet pipeline, a control valve, a first fluid device and a second fluid device, wherein the test branch comprises a fluid inlet branch and a fluid outlet branch; one end of the fluid inlet branch is connected to the fluid inlet pipeline, and the other end is connected to a tested device; one end of the fluid outlet branch is connected to the fluid outlet pipeline, and the other end is connected to a tested device; one end of the control valve is respectively connected with the fluid inlet pipeline and the fluid outlet pipeline, and the other end is connected with the first fluid device and the second fluid device; a first fluid in the first fluid device is different from a second fluid in the second fluid device; based on the scheme, the applicability and operability of the sealing test system can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power, in particular to a sealing test system. Background Art

[0002] Currently, after product integration and installation, the product can be tested for sealing through watertightness test or airtightness test; however, the relevant test system cannot support watertightness test and airtightness test at the same time, that is, there are many inconveniences when switching between different types of tests; it can be seen that how to improve the applicability and operability of the sealing test system is a technical problem that needs to be solved urgently. Utility Model Content

[0003] In view of this, an embodiment of the present invention provides a sealing test system, which can effectively improve the applicability and operability of the sealing test system.

[0004] The technical solution of the embodiment of the utility model is achieved as follows:

[0005] The embodiment of the utility model provides a sealing test system for performing a sealing test on a device under test; the sealing test system comprises: a test branch, an inlet fluid pipeline, an outlet fluid pipeline, a control valve, a first fluid device, and a second fluid device;

[0006] The test branch includes an inlet fluid branch and an outlet fluid branch; one end of the inlet fluid branch is connected to the inlet fluid pipeline, and the other end is connected to the device under test; one end of the outlet fluid branch is connected to the outlet fluid pipeline, and the other end is connected to the device under test;

[0007] One end of the control valve is connected to the inlet fluid pipeline and the outlet fluid pipeline respectively, and the other end is connected to the first fluid device and the second fluid device;

[0008] The first fluid in the first fluid device and the second fluid in the second fluid device are different.

[0009] In this embodiment, the inlet fluid branch in the test branch is connected to the inlet fluid pipeline, and the outlet fluid branch is connected to the outlet fluid pipeline. The inlet fluid branch and the inlet fluid pipeline can be used to deliver the first fluid from the first fluid device or the second fluid from the second fluid device to the device under test, and the outlet fluid branch and the outlet fluid pipeline can be used to discharge the first fluid or the second fluid delivered from the device under test; one end of the control valve is connected to the inlet fluid pipeline and the outlet fluid pipeline, and the other end is connected to the first fluid device and the second fluid device, so that the first fluid device and the second fluid device can be switched and controlled, including performing a sealing test of the first fluid when switching to the first fluid device, and performing a sealing test of the second fluid when switching to the second fluid device. The first fluid and the second fluid are different, thereby realizing sealing tests of different test media, and being able to perform different types of sealing tests on the device under test based on the sealing test system, greatly improving the applicability and operability of the sealing test system.

[0010] In the above solution, the sealing test system includes at least two test branches; one test branch is connected to a device under test;

[0011] At least two test branches are connected in parallel.

[0012] In this embodiment, since the sealing test system includes at least two parallel test branches, and each test branch is connected to a device under test, the sealing test system can simultaneously perform sealing tests on at least two devices under test connected to the test branches, thereby improving test efficiency and accelerating the test cycle of the sealing test.

[0013] In the above solution, the test branch includes a connecting device and a connecting pipe;

[0014] The connecting device includes a quick-connect interface;

[0015] The connecting pipe includes a quick-connect connector;

[0016] One end of the connecting device is connected to the device under test, and the other end is connected to the quick-plug connector through a quick-plug interface.

[0017] In this embodiment, the connecting pipe in each test branch has a quick-insert connector, which can be quickly plugged into the quick-insert interface in the connecting device, and the connecting device is connected to the device under test. This makes it possible to facilitate the connection between the test branch and the device under test and facilitates disassembly and assembly, thereby reducing the time occupied by the sealing test and improving the efficiency of the sealing test.

[0018] In the above solution, the fluid inlet branch includes a first on-off valve and a first connecting pipe;

[0019] One end of the first on-off valve is connected to the first connecting pipe, and the other end is connected to the fluid inlet pipeline.

[0020] In this embodiment, in addition to the first connecting pipe, the inlet fluid branch may also include a first on-off valve for achieving conductivity between the first connecting pipe and the inlet fluid pipeline, thereby enabling independent control of the inlet fluid branch, including independent control of the on and off of the inlet fluid branch, greatly improving the operability of the sealing test system.

[0021] In the above solution, the fluid outlet branch includes a second on-off valve and a second connecting pipe;

[0022] One end of the second on-off valve is connected to the second connecting pipe, and the other end is connected to the fluid outlet pipeline.

[0023] In this embodiment, in addition to the second connecting pipe, the fluid outlet branch is also provided with a second on-off valve for achieving conductivity between the second connecting pipe and the fluid outlet pipeline, thereby enabling independent control of the fluid outlet branch, including independent control of the on and off of the fluid outlet branch, greatly improving the operability of the sealing test system.

[0024] In the above solution, the control valve includes a first valve and a second valve;

[0025] One end of the first valve is connected to the inlet fluid pipeline and the outlet fluid pipeline respectively, and the other end is connected to the first fluid device;

[0026] One end of the second valve is connected to the inlet fluid pipeline and the outlet fluid pipeline respectively, and the other end is connected to the second fluid device.

[0027] In this embodiment, the control valve may specifically include two valves, which are respectively used to control the activation of the first fluid device and the second fluid device, thereby enabling switching between the first fluid device and the second fluid device, thereby supporting different types of sealing tests.

[0028] In the above solution, the first fluid is a liquid;

[0029] The second fluid is a gas.

[0030] In this embodiment, the sealing test system supports sealing tests of different types, including sealing tests using liquid as the test medium and sealing tests using gas as the test medium, thereby facilitating the execution of different types of sealing tests and greatly improving the operability of the sealing test system.

[0031] In the above scheme, the device under test is an energy storage cabinet;

[0032] The energy storage cabinet includes at least one battery cluster.

[0033] In this embodiment, the device under test may be an energy storage cabinet including at least one battery cluster, so the sealing test system can be used to perform sealing tests on the energy storage cabinet to improve the sealing and reliability of the energy storage cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A schematic diagram of a sealing test system provided in an embodiment of the present invention Figure 1 ;

[0035] Figure 2 A schematic diagram of a connection device provided in an embodiment of the present utility model;

[0036] Figure 3 A schematic diagram of a sealing test system provided in an embodiment of the present invention Figure 2 ;

[0037] Figure 4 A schematic diagram of a sealing test system provided in an embodiment of the present invention Figure 3 ;

[0038] Figure 5 A schematic diagram of a sealing test system provided in an embodiment of the present invention Figure 4 .

[0039] Description of Reference Numerals

[0040] 0: Sealing test system;

[0041] 1: Test branch;

[0042] 11: Fluid inlet branch;

[0043] 111: first connecting pipe;

[0044] 112: First on / off valve;

[0045] 12: fluid outlet branch;

[0046] 121: second connecting pipe;

[0047] 122: Second on / off valve;

[0048] 2: Fluid inlet pipeline;

[0049] 3: Outlet fluid pipeline;

[0050] 4: Control valve;

[0051] 5: first fluid device;

[0052] 6: second fluid device;

[0053] 7: Connecting device;

[0054] 71: first connecting device;

[0055] 72: first connecting device;

[0056] 701: quick-connect connector;

[0057] 702: first connection port;

[0058] 81: water inlet pipe;

[0059] 82: water outlet pipe;

[0060] 83: Short-circuit the water pipe;

[0061] 84: on / off valve;

[0062] 85: Device under test. DETAILED DESCRIPTION

[0063] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0064] At present, for some devices that need to be watertight tested, such as energy storage valves (flexible straight valves), power devices are integrated inside the products. During the operation of the products, the power devices will generate a lot of heat, which will be taken away by the water-cooling plate integrated inside the product. In order to meet the heat dissipation performance of the system, the water connection between each water-cooling plate is usually calculated to adopt series or parallel connection or a combination of the two, and there are one or more pipe interfaces to the outside. There are many connection interfaces between the water-cooling plate and the water-cooling pipeline. In order to ensure the quality reliability of the energy storage valve products before leaving the factory, after the sub-module products are integrated and installed, all pipe joints inside the sub-module must undergo a pipe sealing test before the sub-module leaves the factory. The test medium is usually pure water or gas.

[0065] After the submodule product has passed the watertightness test, the general drainage method is to simply unplug the joint of the pipe interface and let the water drain naturally. However, in actual operation, due to the complex internal structure of the radiator and the many elbows in the pipes, water is very easy to accumulate inside the radiator and pipes. During the storage and transportation of the submodule, the water inside the pipes is very easy to leak, which further causes corrosion and damage to other components. Moreover, this drainage method is time-consuming and inefficient. In addition, the current related water channel sealing test equipment can only complete the sealing test requirements of a single water channel and does not have the airtightness test function. Re-establishing a set of independent airtightness test areas is not only costly, but also requires switching between watertightness and airtightness test equipment, which reduces the test efficiency.

[0066] For some current watertight test experimental equipment, the pipeline interface is relatively complex, and the disassembly and assembly operations are complicated, which will take up a lot of time. Frequent disassembly and assembly will also damage the threads of the test pipeline; common sealing tests cannot meet multiple working conditions at the same time. For example, it is impossible to test multiple sub-products at the same time and test a single sub-product. If the test product is replaced, the test platform needs to be redesigned and modified to match the interface of the test product, which will also take up a lot of time and lead to low test efficiency.

[0067] To solve the above problems, an embodiment of the present invention provides a sealing test system, which is used to perform a sealing test on the device under test; the sealing test system includes a test branch, an inlet fluid pipeline, an outlet fluid pipeline, a control valve, a first fluid device and a second fluid device; wherein the test branch includes an inlet fluid branch and an outlet fluid branch; one end of the inlet fluid branch is connected to the inlet fluid pipeline, and the other end is connected to the device under test; one end of the outlet fluid branch is connected to the outlet fluid pipeline, and the other end is connected to the device under test; one end of the control valve is respectively connected to the inlet fluid pipeline and the outlet fluid pipeline, and the other end is connected to the first fluid device and the second fluid device; the first fluid in the first fluid device is different from the second fluid in the second fluid device, which can effectively improve the applicability and operability of the sealing test system, and at the same time improve the sealing test efficiency.

[0068] An embodiment of the utility model provides a sealing test system for performing a sealing test on a device under test. Figure 1 A schematic diagram of a sealing test system provided in an embodiment of the present invention Figure 1 , taking 4 devices under test as an example, the sealing test system can be connected to the 4 devices under test, thereby performing sealing tests on the 4 devices under test at the same time, such as Figure 1 As shown, the sealing test system 0 may include: a test branch 1 , an inlet fluid pipeline 2 , an outlet fluid pipeline 3 , a control valve 4 , a first fluid device 5 and a second fluid device 6 .

[0069] In an embodiment of the present application, the test branch 1 may include an inlet fluid branch 11 and an outlet fluid branch 12; one end of the inlet fluid branch is connected to the inlet fluid pipeline, and the other end is connected to the device under test; one end of the outlet fluid branch is connected to the outlet fluid pipeline, and the other end is connected to the device under test.

[0070] In the embodiments of the present application, the device under test may be any device that requires a sealing test, and the present application does not impose any specific limitation.

[0071] In some embodiments of the present application, the device under test may be an energy storage cabinet, which includes at least one battery cluster; that is, the sealing test system of the present application can be used to perform sealing tests on the energy storage cabinet including at least one battery cluster, thereby improving the sealing and reliability of the energy storage cabinet.

[0072] In the embodiments of the present application, a battery cluster is a battery assembly in which battery cells are connected in series, in parallel, or in series and in parallel, and are connected to an energy storage converter and ancillary facilities to achieve independent operation; wherein, a battery cell refers to a basic unit that can realize the mutual conversion of chemical energy and electrical energy, and can be used to make a battery module or battery pack, thereby being used to supply power to electrical devices. A battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active material after the battery cell is discharged and continue to be used. The battery cell can be a lithium-ion battery, a sodium-ion battery, a sodium-lithium-ion battery, a lithium metal battery, a sodium metal battery, a lithium-sulfur battery, a magnesium-ion battery, a nickel-hydrogen battery, a nickel-cadmium battery, a lead-acid battery, etc., and the embodiments of the present disclosure are not limited to this.

[0073] In an embodiment of the present application, the battery may also be a single physical module including one or more battery cells to provide higher voltage and capacity; when there are multiple battery cells, the multiple battery cells are connected in series, in parallel or in hybrid through a busbar component.

[0074] In an embodiment of the present application, the sealing test system may include at least two test branches; one test branch is connected to one device under test; and at least two test branches are connected in parallel.

[0075] In the embodiment of the present application, since each test branch can be connected to a device under test, the present application can perform sealing tests on at least two test devices simultaneously based on at least two test branches connected in parallel, greatly improving the efficiency of the sealing test.

[0076] In the embodiment of the present application, the fluid inlet pipeline 2 can be used to transport the first fluid or the second fluid to the fluid inlet branch.

[0077] In the embodiment of the present application, the fluid outlet pipeline 3 can be used to discharge the first fluid or the second fluid transported by the fluid outlet branch.

[0078] In the embodiment of the present application, the fluid inlet branch 11 can be used to deliver the first fluid or the second fluid to the device under test.

[0079] In the embodiment of the present application, the fluid outlet branch 12 can be used to transport the first fluid or the second fluid discharged from the device under test to the fluid outlet pipeline 3 .

[0080] In an embodiment of the present application, the fluid inlet branch may be used to deliver gas in the fluid inlet pipeline to the device under test when the fluid outlet branch delivers the first fluid discharged from the device under test to the fluid outlet pipeline.

[0081] In the embodiment of the present application, one end of the control valve 4 is connected to the inlet fluid pipeline 2 and the outlet fluid pipeline 3 respectively, and the other end is connected to the first fluid device 5 and the second fluid device 6 respectively.

[0082] In some embodiments of the present application, the control valve can be used to switch between the first fluid device and the second fluid device, including when switching to the first fluid device, the first fluid device can start to operate; when switching to the second fluid device, the second fluid device can start to operate.

[0083] In some embodiments of the present application, the control valve may include a first valve and a second valve; one end of the first valve is connected to the inlet fluid pipeline and the outlet fluid pipeline respectively, and the other end is connected to the first fluid device; one end of the second valve is connected to the inlet fluid pipeline and the outlet fluid pipeline respectively, and the other end is connected to the second fluid device.

[0084] It can be understood that, in some embodiments of the present application, the first valve can be used to control the opening and closing of the first fluid device, and the second valve can be used to control the opening and closing of the second fluid device.

[0085] In an embodiment of the present application, the first fluid in the first fluid device and the second fluid in the second fluid device are different.

[0086] In some embodiments of the present application, the first fluid may be liquid; and the second fluid may be gas.

[0087] For example, the first fluid may be test water, and the second fluid may be compressed air.

[0088] In some embodiments of the present application, the sealing test system can be used for sealing tests using the first fluid or the second fluid as the medium, for example, it can be used for watertight tests and airtight tests; when the control valve 4 is switched to the first fluid device 5, each pipeline in the sealing test system has sealing test conditions using the first fluid as the medium, for example, at this time it can have watertight test conditions and perform a watertight test; when the control valve 4 is switched to the second fluid device 6, each pipeline in the sealing test system has sealing test conditions using the second fluid as the medium, for example, at this time it can have airtight test conditions and can be ventilated for an airtight test.

[0089] In some embodiments of the present application, the first fluid is test water. When performing a watertight test, the inlet fluid pipeline 2 is used to transport the test water to the inlet fluid branch 11, and the inlet fluid branch 11 can be used to transport the test water received from the inlet fluid pipeline 2 to the device under test; accordingly, the outlet fluid branch 12 is used to transport the test water discharged from the device under test to the outlet fluid pipeline 3, and the outlet fluid pipeline 3 is used to discharge the test water transported by the outlet fluid branch.

[0090] In some embodiments of the present application, the second fluid is gas. When performing an airtight test, the fluid inlet pipeline 2 is used to transport gas to the fluid inlet branch 11, and the fluid inlet branch 11 can be used to transport the gas received from the fluid inlet pipeline 2 to the device under test; accordingly, the fluid outlet branch 12 is used to transport the gas discharged from the device under test to the fluid outlet pipeline 3, and the fluid outlet pipeline 3 is used to discharge the gas transported by the fluid outlet branch.

[0091] In some embodiments of the present application, the control valve can also be controlled after the sealing test is completed, for example, when drainage is required after the watertight test is completed, so that the outlet fluid branch and the outlet fluid pipeline discharge the first fluid of the device under test while the inlet fluid pipeline and the inlet fluid branch convey the second fluid to the device under test, for example, the second fluid is gas. This can not only accelerate the discharge of the first fluid and improve the test efficiency of the sealing test, but also improve the effect of the first fluid being discharged, thereby effectively avoiding corrosion and damage to the device under test and related devices in the sealing test system, and greatly improving the reliability of the related devices.

[0092] In some embodiments of the present application, the first fluid device 5 may include an inlet valve and a drain valve. When the inlet valve is opened, the water inlet operation can be performed to deliver the first fluid to the inlet fluid pipeline. If the drain valve is opened, it can be used to receive the first fluid discharged from the outlet fluid pipeline.

[0093] In some embodiments of the present application, the second fluid device 6 may include an intake valve and an exhaust valve. When the intake valve is opened, the intake operation can be performed to deliver high-pressure gas to the fluid inlet pipeline. If the exhaust valve is opened, it can be used to receive the gas discharged from the fluid outlet pipeline.

[0094] In an embodiment of the present application, the test branch may include a connecting device; Figure 2 This is a schematic diagram of the structure of the connection device proposed in the embodiment of the present application, as shown in FIG. Figure 2 As shown, the connecting device may include a quick-connect interface 701 and a first connecting port 702 ; wherein the first connecting port 702 may be connected to the device under test.

[0095] In an embodiment of the present application, the test branch may also include a connecting pipe, which includes a quick-plug connector; one end of the connecting device is connected to the device under test through a first connection port, and the other end is connected to the quick-plug connector in the connecting pipe through a quick-plug interface.

[0096] In some embodiments of the present application, the quick-connect interface may include a spring assembly, which is pushed open when the quick-connect plug is connected to the quick-connect interface; and the spring assembly is locked when the quick-connect plug is removed from the quick-connect interface.

[0097] In the embodiments of the present application, the connecting device can be understood as a quick-connect device that can achieve rapid connection and disconnection of the device.

[0098] In some embodiments of the present application, the first connection port may be a threaded structure.

[0099] In the embodiments of the present application, the first connection port can also have other different structures, which can be determined according to the connection structure of the device under test. When the connection pipe joint structure of the device under test is a structure other than a threaded structure, a first connection port matching its structure can be used.

[0100] In some embodiments of the present application, Figure 3 As shown, the sealing test system may include a first connecting device 71 and a second connecting device 72; the device under test may be connected to the inlet fluid branch through the first connecting device; the device under test may be connected to the outlet fluid branch through the second connecting device.

[0101] That is to say, in an embodiment of the present application, each test branch is connected to the device under test through a connecting device. This can avoid the problem of the traditional method in which the test branch and the device under test are directly connected through threads, which leads to inconvenience in disassembly and assembly and damage to related structures. It can effectively improve the connection efficiency between the device under test, thereby improving the sealing test efficiency.

[0102] In the embodiment of the present application, each test branch includes its own connecting device and connecting pipe, such as Figure 3 As shown, the fluid inlet branch 11 may include a first connecting pipe 111; the first connecting pipe 111 may include a first quick-connect plug; and the first quick-connect plug is plugged into a quick-connect interface in the first connecting device.

[0103] In some embodiments of the present application, Figure 3 As shown, the fluid outlet branch 12 may include a second connecting pipe 121; the second connecting pipe 121 may include a second quick-connect plug; and the second quick-connect plug is plugged into a quick-connect interface in the second connecting device.

[0104] In the embodiments of the present application, Figure 3 As shown, the fluid inlet branch 11 may further include a first on-off valve 112 ; one end of the first on-off valve 112 is connected to the first connecting pipe 111 , and the other end is connected to the fluid inlet pipeline 2 .

[0105] In the embodiments of the present application, Figure 3 As shown, the fluid outlet branch 12 may include a second on-off valve 122 ; one end of the second on-off valve 122 is connected to the second connecting pipe 121 , and the other end is connected to the fluid outlet pipeline 3 .

[0106] An embodiment of the present application provides a sealing test system, which is used to perform a sealing test on a device under test; the sealing test system includes: a test branch, an inlet fluid pipeline, an outlet fluid pipeline, a control valve, a first fluid device and a second fluid device; wherein the test branch includes an inlet fluid branch and an outlet fluid branch; one end of the inlet fluid branch is connected to the inlet fluid pipeline, and the other end is connected to the device under test; one end of the outlet fluid branch is connected to the outlet fluid pipeline, and the other end is connected to the device under test; one end of the control valve is respectively connected to the inlet fluid pipeline and the outlet fluid pipeline, and the other end is connected to the first fluid device and the second fluid device; the first fluid in the first fluid device and the second fluid in the second fluid device are different. It can be seen that the inlet fluid branch in the test branch is connected to the inlet fluid pipeline, and the outlet fluid branch is connected to the outlet fluid pipeline. The inlet fluid branch and the inlet fluid pipeline can be used to deliver the first fluid from the first fluid device or the second fluid from the second fluid device to the device under test, and the outlet fluid branch and the outlet fluid pipeline can be used to discharge the first fluid or the second fluid delivered from the device under test; one end of the control valve is connected to the inlet fluid pipeline and the outlet fluid pipeline, and the other end is connected to the first fluid device and the second fluid device, so that the first fluid device and the second fluid device can be switched and controlled, including when switching to the first fluid device, a sealing test of the first fluid can be performed, and when switching to the second fluid device, a sealing test of the second fluid can be performed. The first fluid and the second fluid are different, thereby realizing sealing tests of different test media, and being able to perform different types of sealing tests on the device under test based on the sealing test system, greatly improving the applicability and operability of the sealing test system.

[0107] Based on the above embodiment, in another embodiment of the present application, Figure 4 As shown, the sealing test system can also be a system that only supports watertight testing. The system can include multiple test branches 1, water inlet pipes 81, water outlet pipes 82 and a first fluid device 5 respectively connected to the device under test; wherein each test branch can include a connecting device 7, a short-circuit water pipe 83 and a stop valve 84.

[0108] That is to say, by removing the second fluid device and the control valve in the sealing test system of the aforementioned embodiment, a system for performing only watertight testing can be obtained; the connecting pipe can be a short-circuit water pipe.

[0109] In some embodiments of the present application, Figure 5As shown, for a certain test branch, the device under test 85 can be connected to the short-circuit water pipe 83 through the connecting device 7. A quick-connect plug is provided at one end of the short-circuit water pipe 83 connected to the connecting device 7, so that the quick-connect plug can be plugged into the quick-connect interface in the connecting device 7, and the other end of the short-circuit water pipe 83 can be permanently connected to the inlet fluid pipeline or the outlet fluid pipeline; wherein, a stop valve 84 can be provided on the inlet fluid pipeline or the outlet fluid pipeline, and the short-circuit water pipe 83 can be connected to the inlet fluid pipeline or the outlet fluid pipeline through the stop valve 84; wherein, the device under test 85 can be an energy storage cabinet.

[0110] In some embodiments of the present application, one end of the connecting device can adopt a threaded joint, or be processed into other structures according to the specific specifications of the device under test, for connecting the device under test; the other end of the connecting device can adopt a quick-connect interface for connecting a quick-connect plug of a short-circuit water pipe.

[0111] In some embodiments of the present application, the sealing test system adopts a multi-test branch parallel structure, which can simultaneously perform sealing tests on the devices under test connected to all test branches when the on-off valves in all test branches are connected.

[0112] In some embodiments of the present application, all devices under test must be pre-installed with connecting devices in the product integrated installation area before being connected to the test branch; at the same time, the short-circuit water pipe in each test branch can be connected to the corresponding pipeline through a stop valve; during testing, the quick-connect plug of the short-circuit water pipe can be directly inserted into the quick-connect interface of the connecting device to quickly complete the connection between the test pipeline and the device under test. When the product completes the sealing test, the quick-connect plug can be quickly pulled out, and the overall testing efficiency is high.

[0113] In some embodiments of the present application, the sealing test system can be compatible with multiple devices under test. For example, when the connectors of the device under test are different, it is only necessary to change the structure of the port where the connecting device is connected to the device under test, that is, the first connection port, without modifying the entire experiment or test system.

[0114] In some embodiments of the present application, a spring structure is used in the quick-plug interface. When a quick-connect plug is inserted into the interface, the springs at both ends automatically push open and the pipeline is naturally connected; when the quick-connect plug in the interface is pulled out, the springs at both ends of the quick-plug interface automatically pull back and reset to a locked state.

[0115] In some embodiments of the present application, the quick-connect plug of the short-circuit water pipe adopts a normally closed design when the connecting device is pulled out. Therefore, after the quick-connect plug is pulled out from the quick-connect interface of the connecting device, the water in the short-circuit water pipe will not flow out automatically, and the next test can be carried out directly without filling with water.

[0116] In summary, in the embodiments of the present application, the sealing test system adopts a multi-branch parallel structure, which can test multiple devices under test at the same time; each branch is designed with an independent on-off valve, which can control each branch separately; each branch and the device under test are all connected through a connecting device, which can improve the working efficiency of the sealing test and balance the rhythm of product installation, production and testing; and the connection method of the connecting device can prevent the occurrence of damage to the test pipeline caused by frequent disassembly and assembly, thereby improving the reliability of the device; the quick-connect plug of the short-circuit water pipe adopts a normally closed design to ensure that each test is completed It will automatically lock after the quick connect plug is pulled out, and the water in the short-circuit water pipe will not flow out automatically. It can be directly recycled for the next test, which saves time and is environmentally friendly. One end of the connecting device is directly threadedly connected to the device under test, and the other end will automatically lock after the quick connect plug is pulled out, so that the test water therein will not leak in the test area. The device under test can be directly transferred, and the stored water can be discharged to other sites as needed, thereby improving test efficiency. When the device under test is integrated and installed, the connecting device can be pre-installed first. Through the connecting device, it can be compatible with the access of multiple different devices under test, avoiding the need to re-modify the test platform due to different devices under test, saving test resources.

[0117] Based on the above embodiments, in another embodiment of the present application, the device under test may be a storage valve sub-module product; the sealing test system may be compatible with water and air sealing tests, and the test mode may be switched by controlling the valve to perform watertight or airtight tests on the energy storage valve sub-module product; the main test pipeline of the sealing test system may have a multi-channel interface, which may perform sealing tests on energy storage valve sub-module products connected to multiple branches at a time; the connection with the energy storage valve sub-module product adopts a quick-plug structure connection device; each test branch is equipped with a separate on-off valve, which may quickly and independently disconnect each test branch, resulting in flexible testing methods and high testing efficiency; after the watertight test, the water inlet mode of the pipe mouth may be switched to the air inlet mode by controlling the valve, and the test water in the pipeline may be drained by gas. At the same time, since each test branch has an independent on-off valve, the air inlet of each test branch may be controlled individually, thereby ensuring that the first fluid in the energy storage valve sub-module product connected to each test branch is blown dry.

[0118] In some embodiments of the present application, if a watertight test is performed on the device under test, the control valve can be switched to the first fluid device. At this time, the pipeline meets the watertight test conditions and water can be passed through for watertight testing; when an airtight test is performed on the device under test, the control valve can be switched to the second fluid device. At this time, the pipeline meets the airtight test conditions and air can be passed through for airtight testing.

[0119] In some embodiments of the present application, each test branch is simultaneously connected to an inlet fluid pipeline for water or gas intake and an outlet fluid pipeline for water or gas discharge, and the inlet fluid branches for water or gas intake in each test branch are connected to the inlet fluid pipeline through their own on-off valves, while the outlet fluid branches for water or gas discharge are connected to the outlet fluid pipeline through their own on-off valves; when the on-off valve of a test branch is connected, the test branch meets the test conditions, and when the valve is disconnected, the test branch is disconnected; each test branch can be connected to the device under test through a connecting device, and can be quickly pulled out after completing the sealing test, saving time and improving test efficiency.

[0120] In some embodiments of the present application, after completing the watertight test, the water inlet valve in the first fluid device can be closed and the drain valve can be opened to start discharging the test water from the various pipes, branches and the device under test in the sealing test system; if only one device under test is currently being sealed, that is, only one test branch is currently connected, the inlet and exhaust valves of the second fluid device can be opened while the drain valve is opened to blow out the water from the device under test; if a sealing test is performed on multiple devices under test connected by multiple test branches, high-pressure gas can be blown into one of the test branches with an open on-off valve, while the on-off valves of the remaining test branches are disconnected, and the pressure of the high-pressure gas can be adjusted to an allowable pressure range according to the high-pressure gas pressure gauge to ensure that the test water in the test branch is blown dry. Similarly, when blowing out water from another test branch, the on-off valve of the test branch needs to be connected, and the on-off valves of the remaining test branches need to be closed to complete the blowing out of water in the branch, and so on until there is no water in each test branch.

[0121] To sum up, in the embodiments of the present application, the sealing test system is compatible with both water and air testing methods, and can match different sealing test requirements according to actual working conditions; the development cost of the sealing test system is low, and the testing efficiency is high; and it can simultaneously perform sealing tests on multiple energy storage valve sub-module products connected to multiple test branches, each test branch is independently segmented, and the testing method is flexible; after the energy storage valve sub-module product completes the watertight test, it can be connected to the second fluid device to blow out the water cooling plate in the energy storage valve sub-module product and the water stored in the pipeline of the sealing test system through high-pressure gas, so as to prevent water from leaking out of the water cooling plate and pipeline, causing corrosion or damage to related components and devices, and improving the reliability of the device.

[0122] An embodiment of the present application provides a sealing test system, which is used to perform a sealing test on a device under test; the sealing test system includes: a test branch, an inlet fluid pipeline, an outlet fluid pipeline, a control valve, a first fluid device and a second fluid device; wherein the test branch includes an inlet fluid branch and an outlet fluid branch; one end of the inlet fluid branch is connected to the inlet fluid pipeline, and the other end is connected to the device under test; one end of the outlet fluid branch is connected to the outlet fluid pipeline, and the other end is connected to the device under test; one end of the control valve is respectively connected to the inlet fluid pipeline and the outlet fluid pipeline, and the other end is connected to the first fluid device and the second fluid device; the first fluid in the first fluid device and the second fluid in the second fluid device are different. It can be seen that the inlet fluid branch in the test branch is connected to the inlet fluid pipeline, and the outlet fluid branch is connected to the outlet fluid pipeline. The inlet fluid branch and the inlet fluid pipeline can be used to deliver the first fluid from the first fluid device or the second fluid from the second fluid device to the device under test, and the outlet fluid branch and the outlet fluid pipeline can be used to discharge the first fluid or the second fluid delivered from the device under test; one end of the control valve is connected to the inlet fluid pipeline and the outlet fluid pipeline, and the other end is connected to the first fluid device and the second fluid device, so that the first fluid device and the second fluid device can be switched and controlled, including when switching to the first fluid device, a sealing test of the first fluid can be performed, and when switching to the second fluid device, a sealing test of the second fluid can be performed. The first fluid and the second fluid are different. For example, the first fluid can be water and the second fluid can be gas, thereby realizing different types of sealing tests and improving the operability of the sealing test system.

[0123] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A sealing test system, characterized in that: The sealing test system is used to perform sealing test on the device under test; the sealing test system includes: a test branch, an inlet fluid pipeline, an outlet fluid pipeline, a control valve, a first fluid device and a second fluid device; Wherein, the test branch includes an inlet fluid branch and an outlet fluid branch; one end of the inlet fluid branch is connected to the inlet fluid pipeline, and the other end is connected to the device under test; one end of the outlet fluid branch is connected to the outlet fluid pipeline, and the other end is connected to the device under test; One end of the control valve is connected to the inlet fluid pipeline and the outlet fluid pipeline respectively, and the other end is connected to the first fluid device and the second fluid device; The first fluid in the first fluid device and the second fluid in the second fluid device are different.

2. The sealing test system according to claim 1, characterized in that: The sealing test system comprises at least two test branches; one test branch is connected to one device under test; At least two of the test branches are connected in parallel.

3. The sealing test system according to claim 2, characterized in that: The test branch includes a connecting device and a connecting pipe; The connecting device includes a quick-connect interface; The connecting pipe includes a quick-connect connector; One end of the connecting device is connected to the device under test, and the other end is connected to the quick-insert connector through the quick-insert interface.

4. The sealing test system according to any one of claims 1 to 3, characterized in that: The fluid inlet branch includes a first on-off valve and a first connecting pipe; One end of the first on-off valve is connected to the first connecting pipe, and the other end is connected to the fluid inlet pipeline.

5. The sealing test system according to claim 4, characterized in that: The fluid outlet branch includes a second on-off valve and a second connecting pipe; One end of the second on-off valve is connected to the second connecting pipe, and the other end is connected to the fluid outlet pipeline.

6. The sealing test system according to any one of claims 1 to 3, characterized in that: The control valve includes a first valve and a second valve; One end of the first valve is connected to the inlet fluid pipeline and the outlet fluid pipeline respectively, and the other end is connected to the first fluid device; One end of the second valve is connected to the inlet fluid pipeline and the outlet fluid pipeline respectively, and the other end is connected to the second fluid device.

7. The sealing test system according to any one of claims 1 to 3, characterized in that: The first fluid is a liquid; The second fluid is gas.

8. The sealing test system according to claim 1, wherein: The device under test is an energy storage cabinet; The energy storage cabinet includes at least one battery cluster.

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