Integrated test tool and test system

Abstract

The utility model belongs to the technical field of testing, and particularly relates to an integrated testing tool and a testing system, the tool comprises a first pipeline, a second pipeline and a fifth pipeline, and the first pipeline, the second pipeline and the fifth pipeline work in cooperation and can complete the operation of an air tightness experiment; the first pipeline, the third pipeline and the fifth pipeline are matched to work, so that the vacuumizing operation can be completed; and the first pipeline, the fourth pipeline and the fifth pipeline are matched to work, so that the liquid injection operation can be completed. The integrated testing tool can complete the operations of air tightness testing, vacuumizing and liquid injection, the tool does not need to be disassembled and assembled repeatedly, continuous operation can be achieved, the time for replacing the tool is saved, and the testing efficiency can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of testing technology, and in particular to an integrated testing fixture and testing system. Background Technology

[0002] The liquid cooling system of an energy storage device requires three testing processes during production: airtightness testing, vacuuming, and liquid injection. Since these three processes typically require different tooling, switching processes necessitates changing the corresponding tooling, leading to low testing efficiency. Utility Model Content

[0003] The purpose of this invention is to provide an integrated testing fixture and testing system. This testing system can complete airtightness tests, vacuuming, and liquid injection using the integrated testing fixture, saving the time of changing fixtures and effectively improving testing efficiency.

[0004] An integrated testing fixture according to this utility model includes:

[0005] A first pipe is provided with a pressure gauge, and the first end of the first pipe is connected to the product to be tested.

[0006] A second pipe is provided with a first valve. The inlet end of the second pipe is supplied with gas, and the outlet end of the second pipe is connected to the second end of the first pipe.

[0007] A third pipe is provided with a second valve. The inlet end of the third pipe is connected to the second end of the first pipe, and the outlet end of the third pipe is used to discharge gas.

[0008] A fourth pipe is provided with a third valve. The inlet end of the fourth pipe is for liquid input, and the outlet end of the fourth pipe is used to connect to the second end of the first pipe.

[0009] A fifth pipe is provided with a fourth valve. The inlet end of the fifth pipe is connected to the first pipe and is located on the side of the pressure gauge near the first end. The outlet end of the fifth pipe is used for the discharge of gas and liquid.

[0010] In some embodiments, the second pipe is provided with a filter on the air inlet side of the first valve.

[0011] In some embodiments, the filter is a pressure regulating filter.

[0012] In some embodiments, the first to fourth pipes are arranged at the same height.

[0013] In some embodiments, the inlet end of the second pipe and the outlet end of the third pipe are directed towards a first direction on a horizontal plane, the first end of the first pipe is directed towards a second direction on the horizontal plane, and the inlet end of the fourth pipe is directed towards a third direction on the horizontal plane.

[0014] In some embodiments, the first to fourth pipes are communicated through a four-way joint, the second end of the first pipe is connected to a first interface of the four-way joint, the outlet end of the second pipe is connected to a second interface of the four-way joint, the inlet end of the third pipe is connected to a third interface of the four-way joint, and the outlet end of the fourth pipe is connected to a fourth interface of the four-way joint.

[0015] In some embodiments, the first end of the first pipe is provided with a first hose for connecting a product to be tested, the inlet end of the second pipe is provided with a second hose for connecting a gas source, and the outlet end of the third pipe is provided with a third hose for connecting a vacuum device.

[0016] In some embodiments, the base is further provided with four supporting blocks for supporting the first to fourth pipes and a fixing block for fixing the filter.

[0017] According to the test system provided by the utility model, the first pipe, the second pipe and the fifth pipe cooperate to complete the operation of the air tightness experiment, the first pipe, the third pipe and the fifth pipe cooperate to complete the operation of vacuumizing, and the first pipe, the fourth pipe and the fifth pipe cooperate to complete the operation of liquid injection.

[0018] In some embodiments, the test system further comprises a control module electrically connected with the gas source, the water source, the vacuum device and the pressure gauge.

[0019] The control module controls the gas source, the water source and the vacuum device to stop according to the pressure signal fed back by the pressure gauge.

[0020] The integrated test tool can complete the air tightness test, vacuumizing and liquid injection, and does not need to be repeatedly disassembled and assembled, can continuously work, saves the time for replacing the tool, and can effectively improve the test efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a structure diagram of the cooling system in the embodiment from the top view;

[0022] Figure 2 Structure diagram of the integrated test tool of the embodiment;

[0023] Figure 3 Structure diagram of the first to fifth pipes;

[0024] Figure 4 Structure diagram of the base.

[0025] In the figure: first pipe 10; second pipe 11; third pipe 12; fourth pipe 13; fifth pipe 14; first valve 20; second valve 21; third valve 22; fourth valve 23; first hose 30; second hose 31; third hose 32; four-way joint 40; first three-way joint 41; second three-way joint 42; pressure gauge 50; filter 60; base 70; support block 71; fixed block 72; air source 80; air extraction device 81; water source 82; control module 83. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0027] The structure, proportion, size, etc. shown in the drawings of the specification are only used to cooperate with the content disclosed in the specification, so that people skilled in the art can understand and read, and are not used to limit the implementation conditions of the utility model. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the effects and purposes that the utility model can produce, should still fall within the scope of the technical content disclosed by the utility model.

[0028] The directions or positional relationships such as "upper", "lower", "left", "right", "middle", "vertical", "horizontal", "horizontal", "inner", "outer", "radial", "circumferential" and the like referred to in the specification are based on the directions or positional relationships shown in the drawings, and are only used to simplify the description, and are not used to indicate or imply that the devices or elements referred to must have a particular orientation, structure and operation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only used for description purposes, and cannot be understood as indicating or implying relative importance.

[0029] As Figure 1 and Figure 2As shown, the embodiment provides a test system, which comprises a gas source 80, a water source 82, a gas extraction device 81, a control module 83 and an integrated test tool. The control module 83 is electrically connected with the gas source 80, the water source 82 and the gas extraction device 81 respectively, and the control module 83 can control the gas source 80, the water source 82 and the gas extraction device 81 to stop.

[0030] The integrated test tool of the embodiment comprises five pipes, wherein a first pipe 10 is provided with a pressure gauge 50, and a first end of the first pipe 10 is used to communicate with a product to be tested. A second pipe 11 is provided with a first valve 20, an inlet end of the second pipe 11 is used to input gas, and an outlet end of the second pipe 11 is communicated with a second end of the first pipe 10. A third pipe 12 is provided with a second valve 21, an inlet end of the third pipe 12 is used to communicate with the second end of the first pipe 10, and an outlet end of the third pipe 12 is used to output gas. A fourth pipe 13 is provided with a third valve 22, an inlet end of the fourth pipe 13 is used to input liquid, and an outlet end of the fourth pipe 13 is used to communicate with the second end of the first pipe 10. A fifth pipe 14 is provided with a fourth valve 23, an inlet end of the fifth pipe 14 is connected to the first pipe 10 and located on a side of the pressure gauge 50 close to the first end, and an outlet end of the fifth pipe 14 is used to output gas and liquid.

[0031] The first pipe 10, the second pipe 11 and the fifth pipe 14 of the embodiment are cooperated to complete the operation of the air tightness experiment; the first pipe 10, the third pipe 12 and the fifth pipe 14 are cooperated to complete the operation of vacuum extraction; and the first pipe 10, the fourth pipe 13 and the fifth pipe 14 are cooperated to complete the operation of liquid injection. The integrated test tool can complete the operations of air tightness test, vacuum extraction and liquid injection, and does not need to be repeatedly disassembled and assembled, so that continuous operation can be realized, the time for replacing the tool is saved, and the test efficiency can be effectively improved.

[0032] The first pipe 10, the second pipe 11, the third pipe 12 and the fourth pipe 13 of the embodiment are preferably communicated through a four-way joint 40, and the interfaces between the first to fourth pipes and the four-way joint 40 are preferably connected by conventional double-external-thread union joints. The connection structure at this position is simple, and the disassembly, assembly and maintenance are facilitated.

[0033] Specifically referring to Figure 2 and Figure 3 , a first end of the first pipe 10 is preferably provided with a first hose 30 to connect the product to be tested, and a second end of the first pipe 10 is connected to a first interface of the four-way joint 40. The first hose 30 facilitates the communication of the first pipe 10 to the product to be tested. The first hose 30 can be preferably selected as a steel wire hose with low cost.

[0034] The pressure gauge 50 of the embodiment is preferably connected to the first pipeline 10 through the first tee joint 41, which is simple in structure and low in cost. The pressure gauge 50 is preferably a gas and liquid dual-purpose positive and negative pressure intelligent pressure gauge, which meets the requirements of positive and negative pressure and can preset pressure values. The pressure gauge 50 is electrically connected to the control module 83, and the pressure gauge 50 sets preset values for the air tightness test, vacuum pumping and liquid injection operations, respectively. When the pressure gauge 50 detects that the real-time pressure reaches the corresponding preset value, the pressure gauge 50 feeds back the pressure signal to the control module 83, so that the control module 83 controls the corresponding gas source 80, water source 82 and air pumping device 81 to stop. It should be noted that the control module 83 is a prior art, for example, the control module 83 includes a conventional intermediate relay which can receive a pressure signal to control the gas source 80, the air pumping device 81 and the water source 82, so the specific principle of the embodiment will not be described here.

[0035] The inlet end of the second pipeline 11 of the embodiment is preferably provided with the second hose 31 connected to the gas source 80, which can absorb the impact generated in the ventilation instant and play a buffering role. The outlet end of the second pipeline 11 is connected to the second interface of the four-way joint 40. The second pipeline 11 is also provided with the filter 60 on the gas inlet side of the first valve 20, which can filter impurities (such as oil) in the gas to prevent the impurities from affecting the test results. The filter 60 of the embodiment is preferably a conventional pressure regulating filter 60 which has an overpressure protection function. When the gas source 80 cannot stop in time, the pressure regulating filter can automatically release pressure to ensure the safety of the system. The gas source 80 of the embodiment selects a conventional air compressor, and the gas source of some embodiments can also select a gas storage tank or a conventional gas generating device according to the requirements.

[0036] The inlet end of the third pipeline 12 of the embodiment is connected to the third interface of the four-way joint 40, and the outlet end of the third pipeline 12 is preferably provided with the third hose 32 connected to the air pumping device 81, which can absorb the impact generated in the ventilation instant and play a buffering role. The air pumping device 81 is preferably a conventional vacuum pump, which sequentially pumps the product to be tested through the third pipeline 12 and the first pipeline 10.

[0037] The inlet end of the fourth pipeline 13 of the embodiment is connected to the water outlet of the water source 82, and the outlet end of the fourth pipeline 13 is connected to the fourth interface of the four-way joint 40. The water source 82 includes a conventional water storage container and a liquid injection pump, which can sequentially inject liquid into the product to be tested through the fourth pipeline 13 and the first pipeline 10. The inlet end of the fifth pipeline 14 of the embodiment is connected to the first pipeline 10 through the second tee joint 42, which is simple in connection mode.

[0038] The first to fourth valves of the embodiment are preferably ball valves, so as to facilitate the adjustment of the flow of fluid. The first hose 30 and the third hose 32 of the embodiment are preferably steel wire hoses with low cost, and the second hose 31 is preferably a pu hose made of polyurethane material, which has high tensile strength and good wear resistance.

[0039] In the embodiment, the first to fourth pipes are preferably arranged at the same height, so as to facilitate the smooth passage of fluid through the integrated tool; the outlet end of the fifth pipe 14 is preferably downward, so as to facilitate the discharge of liquid. The inlet end of the second pipe 11 and the outlet end of the third pipe 12 are directed to a first direction on the horizontal plane, the first end of the first pipe 10 is directed to a second direction on the horizontal plane, and the inlet end of the fourth pipe 13 is directed to a third direction on the horizontal plane. It should be noted that the first to third directions are different directions. For details, see Figure 2 The inlet end of the second pipe 11 and the outlet end of the third pipe 12 can be directed to the left side, the first end of the first pipe 10 can be directed to the right side, and the inlet end of the fourth pipe 13 can be directed to the front side. The embodiment centrally arranges the gas treatment equipment such as the gas source 80 and the air extraction device 81, and distributes the gas treatment equipment, the water source 82 and the product to be tested at different positions, so as to reasonably utilize the space.

[0040] For details, see Figure 4 The integrated test tool of the embodiment further comprises a base 70, the base 70 is provided with four supporting blocks 71 and a fixing block 72, the four supporting blocks 71 correspondingly support the first to fourth pipes, buckles are arranged on the four supporting blocks 71 to fix the corresponding pipes, so as to ensure that the first to fourth pipes are fixed firmly and facilitate the movement of the entire integrated test tool. Since the first to fourth pipes are arranged at the same height, the four supporting blocks 71 have the same height, which facilitates processing. The fixing block 72 is used to fixedly connect the filter 60, and the filter 60 is specifically installed on the fixing block 72 through bolts, so as to ensure that the filter 60 is installed firmly.

[0041] The use method of the test system of the embodiment is as follows:

[0042] In the operation of the air tightness experiment, first, start the gas source 80, open the first valve 20, close the second valve 21, the third valve 22 and the fourth valve 23, so that the gas supplied by the gas source 80 flows through the filter 60, the second pipe 11 and the first pipe 10 and then enters the product to be tested; then wait for the value of the pressure gauge 50 to reach the preset value required by the air tightness experiment, the pressure gauge 50 feeds back the pressure information to the control module 83, and the control module 83 controls the gas source 80 to stop to cut off the supply of gas; next, close the first valve 20, and maintain the pressure according to the specified time; finally, open the fourth valve 23 to release the pressure through the fifth pipe 14.

[0043] In the operation of vacuumizing, first, the air extractor 81 is started, the second valve 21 is opened, and the first valve 20, the third valve 22 and the fourth valve 23 are closed, so that the air extractor 81 extracts the air in the product to be tested through the third pipeline 12 and the first pipeline 10; then, the value of the pressure gauge 50 is waited to reach the preset value required by the vacuumizing, the pressure gauge 50 feeds back the pressure information to the control module 83, the control module 83 controls the air extractor 81 to stop; finally, the second valve 21 is closed to complete the operation of vacuumizing.

[0044] In the operation of liquid injection, first, the water source 82 is started, the third valve 22 is opened, and the first valve 20, the second valve 21 and the fourth valve 23 are closed, so that the liquid supplied by the water source 82 flows through the third pipeline 12 and the first pipeline 10 and then enters the product to be tested; then, the value of the pressure gauge 50 is waited to reach the preset value required by the liquid injection, the pressure gauge 50 feeds back the pressure information to the control module 83, the control module 83 controls the water source 82 to stop to cut off the supply of the liquid; finally, the fourth valve 23 is opened to drain water through the fifth pipeline 14.

[0045] The liquid entering the product to be tested in the operation of liquid injection includes two stages, the first stage is powered by the self-suction caused by the vacuum degree inside the product to be tested, and the second stage is powered by the liquid injection pump, since the operations of air tightness test, vacuumizing and liquid injection are prior art, therefore, the embodiment will not be described here.

[0046] The technical features of the above embodiments can be combined arbitrarily, in order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.

[0047] The above embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. An integrated testing fixture, characterized in that, include: A first pipe (10) is provided with a pressure gauge (50), and the first end of the first pipe (10) is connected to the product to be tested; The second pipe (11) is provided with a first valve (20). The inlet end of the second pipe (11) is supplied with gas, and the outlet end of the second pipe (11) is connected to the second end of the first pipe (10). A third pipe (12) is provided with a second valve (21). The inlet end of the third pipe (12) is used to connect to the second end of the first pipe (10), and the outlet end of the third pipe (12) is used to discharge gas. A fourth pipe (13) is provided with a third valve (22). The inlet end of the fourth pipe (13) is used for liquid input, and the outlet end of the fourth pipe (13) is used to connect to the second end of the first pipe (10). A fifth pipe (14) is provided with a fourth valve (23). The inlet end of the fifth pipe (14) is connected to the first pipe (10) and is located near the first end of the pressure gauge (50). The outlet end of the fifth pipe (14) is used for the discharge of gas and liquid.

2. The integrated testing fixture according to claim 1, characterized in that: The second pipe (11) is equipped with a filter (60) on the air inlet side of the first valve (20).

3. The integrated testing fixture according to claim 2, characterized in that: The filter (60) is a pressure regulating filter (60).

4. The integrated testing fixture according to claim 1, characterized in that: The first to fourth pipes are set at the same height.

5. The integrated testing fixture according to claim 1, characterized in that: The inlet end of the second pipe (11) and the outlet end of the third pipe (12) are oriented in a first direction on the horizontal plane, the first end of the first pipe (10) is oriented in a second direction on the horizontal plane, and the inlet end of the fourth pipe (13) is oriented in a third direction on the horizontal plane.

6. The integrated testing fixture according to any one of claims 1-5, characterized in that: The first to fourth pipes are connected by a four-way connector (40). The second end of the first pipe (10) is connected to the first interface of the four-way connector (40), the outlet end of the second pipe (11) is connected to the second interface of the four-way connector (40), the inlet end of the third pipe (12) is connected to the third interface of the four-way connector (40), and the outlet end of the fourth pipe (13) is connected to the fourth interface of the four-way connector (40).

7. The integrated testing fixture according to any one of claims 1-5, characterized in that: The first end of the first pipe (10) is provided with a first hose (30) to connect to the product to be tested, the inlet end of the second pipe (11) is provided with a second hose (31) to connect to the air source (80), and the outlet end of the third pipe (12) is provided with a third hose (32) to connect to the air extraction device (81).

8. The integrated testing fixture according to claim 2 or 3, characterized in that: It also includes a base (70), on which four support blocks (71) and a fixing block (72) are provided. The four support blocks (71) are used to support the first to fourth pipes respectively, and the fixing block (72) is used to fix the filter (60).

9. A testing system, characterized in that: It includes an air source (80), a water source (82), an air extraction device (81), and an integrated testing fixture as described in any one of claims 1-8. The air source (80) is connected to the inlet end of the second pipe (11), the air extraction device (81) is connected to the outlet end of the third pipe (12), and the water source (82) is connected to the inlet end of the fourth pipe (13).

10. The testing system according to claim 9, characterized in that: It also includes a control module (83), which is electrically connected to the gas source (80), the water source (82), the air extraction device (81) and the pressure gauge (50), respectively; The control module (83) controls the corresponding gas source (80), water source (82) and air extraction device (81) to stop based on the pressure signal fed back by the pressure gauge (50).

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