Environmental chamber for ice water impact test

Abstract

An environmental chamber for an ice water impact test belongs to the field of test equipment and comprises a chamber body, a simulation chamber and an equipment chamber are arranged in the chamber body, a heating unit, a cooling unit and a pure water unit are arranged in the equipment chamber, a rotary supporting seat and a spray head are arranged in the simulation chamber, a refrigerating unit is further arranged in the equipment chamber, and the heating unit and the cooling unit are both communicated with the interior of the simulation chamber. The water purification unit comprises a heat preservation water tank, the heat preservation water tank is connected with a water purification machine through a first pipeline, and the heat preservation water tank is connected with the spraying head through a second pipeline; the refrigeration compressor is respectively connected with the first evaporator and the cooling unit through the refrigeration pipeline and the electric three-way valve, so that the environmental chamber has an ice water impact function, the availability of the environmental chamber is increased, the vacancy rate of equipment is reduced, a special ice water impact test box does not need to be additionally purchased, and the equipment purchase cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of test equipment, in particular to an environmental chamber for ice water impact testing. Background Art

[0002] During winter driving, low-temperature water on the ground can easily splash onto the high-temperature drive motor. Rapid temperature changes may cause materials with different temperature expansion coefficients in the drive motor to rupture or seal failure, thereby causing vehicle performance and safety issues. Therefore, in order to test the durability of the drive motor in an environment with extreme temperature changes, the drive motor system will be subjected to an ice water shock test.

[0003] The common ice water shock test currently mainly uses a dedicated ice water shock test chamber (such as publication number CN221199341U). The specimen is first placed in a high-temperature chamber for high-temperature heating until the temperature of the specimen reaches the temperature required for the test. The heated specimen is then taken out of the high-temperature chamber and placed in a low-temperature chamber for the ice water shock test.

[0004] Motor performance test laboratories are generally equipped with a motor test bench environmental chamber (hereinafter referred to as the environmental chamber), which can simulate various environmental conditions such as high temperature and low temperature to test the performance of the motor in different environments. In the ice water shock test, the environmental chamber can be used to heat the test piece, but the current environmental chamber does not have the ability to perform ice water shock, and still needs to be equipped with an ice water shock test box, which increases the test cost. Moreover, since the existing ice water shock test box itself has a high-temperature chamber, if an ice water shock test box is equipped, there is no need to use the environmental chamber, resulting in the environmental chamber being vacant and low in utilization. Utility Model Content

[0005] In order to solve the technical problem in the above-mentioned background technology that the existing environmental chamber does not have the ice water shock capability, and the motor ice water shock test requires an ice water shock test box, which leads to the environmental chamber being empty and the utilization rate being low, the present utility model provides an environmental chamber for ice water shock test.

[0006] The technical solution of this utility model is as follows:

[0007] The utility model provides an environmental chamber for ice water shock test, comprising: a chamber body, a simulation chamber and an equipment chamber provided in the chamber body, a heating unit, a cooling unit and a pure water unit provided in the equipment chamber, a rotating support seat and a spray head provided in the simulation chamber, a refrigeration unit provided in the equipment chamber, the heating unit and the cooling unit are both communicated with the interior of the simulation chamber, the pure water unit comprises an insulated water tank, the insulated water tank is connected to the pure water machine through a first pipe, the insulated water tank is connected to the spray head through a second pipe, the refrigeration unit comprises a first evaporator and a refrigeration compressor, the first evaporator is arranged in the insulated water tank, the refrigeration compressor is respectively connected to the first evaporator and the cooling unit through a refrigeration pipeline and an electric three-way valve, and on the basis of the existing environmental chamber functions of heating, cooling, and deionized water preparation, the insulated water tank, the spray head, the first evaporator and the cooling unit are added. An evaporator and other components are installed, and the refrigeration pipeline of the refrigeration compressor is adjusted to realize the ice water shock function. The deionized water required for the ice water shock test is generated by the pure water machine of the environmental chamber. The deionized water inside the insulation water tank is cooled to the required temperature by the refrigeration compressor of the environmental chamber in conjunction with the added first evaporator. The test piece in the simulation room is heated by the heating unit of the environmental chamber, and the ice water shock test is performed on the test piece using the sprinkler head. According to the needs, a cold water splashing shock environment can be conveniently and reliably created for the test piece, thereby meeting the needs of the test product to be subjected to the splashing ice water shock test, so that the environmental chamber has the function of ice water shock, which increases the availability of the environmental chamber and reduces the vacancy rate of the equipment. There is no need to purchase an additional special ice water shock test box, thus saving equipment procurement costs.

[0008] Preferably, a liquid level feedback switch is fixedly installed in the insulated water tank. The liquid level feedback switch and the pure water machine are both connected to the control unit of the environmental chamber. The operation of the pure water machine can be automatically controlled according to the liquid level of the ice water in the insulated water tank to automatically control the water production.

[0009] Preferably, a temperature detection unit is fixedly installed in the insulated water tank, and the temperature detection unit and the refrigeration compressor are both connected to the control unit, which can automatically control the operation of the refrigeration compressor according to the temperature of the ice water in the insulated water tank, ensuring that the ice water temperature is stable within the set temperature range.

[0010] Preferably, the control unit is connected to the electric three-way valve, and can automatically switch the operation of the cooling unit and the first evaporator according to actual needs to meet different working requirements.

[0011] Preferably, a flow meter and a water pump are provided on the second pipeline, and the flow meter and the water pump are both connected to the control unit. The flow meter is used to monitor the flow rate and feed back the information to the control unit. The control unit controls the speed of the water pump according to the set water flow rate to control the impact force of the ice water to adapt to different simulation requirements.

[0012] Preferably, an electromagnetic stop valve is provided at the connection between the second pipeline and the sprinkler head to control the operation of the sprinkler head.

[0013] Preferably, the rotating support seat is rotationally arranged at a central position of the bottom of the simulation chamber, and the spray head is fixedly arranged on the side wall of the simulation chamber, so that the test piece is sprayed without dead angle in the horizontal direction.

[0014] Preferably, the bottom of the simulation chamber is provided with a drain port close to the rotating support seat for discharging wastewater in the simulation chamber.

[0015] Preferably, the bottom of the simulation chamber has a slope inclined towards the central position, so as to facilitate the water body to gather at the central position of the bottom of the simulation chamber and be discharged by the drain port.

[0016] Preferably, the simulation chamber is provided with a hatch for taking and placing the test piece.

[0017] It can be seen from the above technical solution that the utility model has the advantages of:

[0018] 1. On the basis of the existing environmental chamber with functions of temperature rising, temperature falling and deionized water preparation, the heat preservation water tank, the spray head, the first evaporator and other components are added, and the refrigeration pipeline of the refrigeration compressor is adjusted to realize the function of ice water impact. The deionized water required for the ice water impact test is generated by the pure water machine of the environmental chamber, the deionized water in the heat preservation water tank is cooled to the required temperature by the refrigeration compressor of the environmental chamber in cooperation with the added first evaporator, the test piece in the simulation chamber is heated by the temperature rising unit of the environmental chamber, and the spray head is used to perform the ice water impact test on the test piece. The cold water splashing impact environment can be created for the test piece, the environmental chamber has the function of ice water impact, the availability of the environmental chamber is increased, the idle rate of the equipment is reduced, and the ice water impact special test chamber does not need to be additionally purchased, so that the equipment procurement cost is saved.

[0019] 2. The rotating support seat is rotationally arranged at a central position of the bottom of the simulation chamber, and the spray head is fixedly arranged on the side wall of the simulation chamber, so that the test piece is sprayed without dead angle in the horizontal direction. The bottom of the simulation chamber is provided with a drain port close to the rotating support seat, and the bottom of the simulation chamber has a slope inclined towards the central position, so as to facilitate the water body to gather at the central position of the bottom of the simulation chamber and be discharged by the drain port. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the utility model, the drawings required to be used in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0021] Figure 1 It is a front view structural schematic diagram of the environmental chamber according to one or more embodiments of the utility model.

[0022] Figure 2 This is a schematic perspective structural diagram of an environmental chamber according to one or more embodiments of the present invention, viewed from above;

[0023] Figure 3 A schematic diagram of a perspective structure of an environmental chamber according to one or more embodiments of the present invention, viewed from the side;

[0024] The components represented by the reference numerals in the figure are:

[0025] 1. Water purifier; 2. First pipeline; 3. Liquid level feedback switch; 4. Temperature detection unit; 5. First evaporator; 6. Electric three-way valve; 7. Refrigeration compressor; 8. Second evaporator; 9. Resistance heater; 10. Second pipeline; 11. Solenoid stop valve; 12. Sprinkler head; 13. Flow meter; 14. Water pump; 15. Insulated water tank; 16. Rotating support seat; 17. Drain outlet; 18. Hatch door. DETAILED DESCRIPTION

[0026] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions of the present invention will be clearly and completely described below in conjunction with the drawings in the specific embodiments. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this patent.

[0027] In a typical embodiment of the present invention, Figure 1-Figure 3 As shown, an environmental chamber for ice water shock test is proposed, including: a cabin body, an independent simulation room and an equipment room are provided in the cabin body, a rotating support seat 16 and a spray head 12 are rotatably provided in the simulation room, the rotating support seat 16 is used to support the test piece, and the spray head 12 is connected to the insulated water tank 15 in the equipment room, and is used to spray ice water onto the test piece to simulate ice water shock; the equipment room is used to place functional units.

[0028] like Figure 2 As shown, the functional units in the equipment room include a heating unit, a cooling unit, a pure water unit and a refrigeration unit, wherein the heating unit and the cooling unit are both connected to the interior of the simulation room, the heating unit is used to simulate the heating of the indoor room temperature, the cooling unit is used to simulate the cooling of the indoor room temperature, the pure water unit is used to prepare and store pure water, and the refrigeration unit is connected to the cooling unit and the pure water unit through the refrigeration pipeline and the electric three-way valve 6. The electric three-way valve 6 can realize the on-off control of the connection between the refrigeration unit and the cooling unit and the pure water unit to achieve rapid cooling of the simulation room temperature or preparation of ice water.

[0029] Specifically, the heating unit includes a resistance heater 9 and a first fan. The air blown out by the first fan is heated into hot air by the resistance heater 9 and then blown into the simulation room to achieve heating of the specimen in the simulation room; the cooling unit includes a second evaporator 8 and a second fan. The second evaporator 8 is connected to the refrigeration unit through a refrigeration pipeline. The air blown out by the second fan is cooled by the second evaporator 8 and then blown into the simulation room to achieve rapid cooling of the room temperature in the simulation room, which can be reduced to minus 40 degrees Celsius.

[0030] It can be understood that the resistance heater 9 and the second evaporator 8 are both fixedly mounted on the bulkhead between the simulation room and the equipment room, and there are openings at the corresponding positions of the bulkhead to allow gas to pass through. The specific setting method is conventional technical means, and no excessive restrictions are made here.

[0031] The pure water unit includes a pure water machine 1 and an insulated water tank 15. The pure water machine 1 is equipped with at least one. The pure water machine 1 is connected to the insulated water tank 15 through a first pipe 2. The pure water machine 1 can be connected to an external water source. The pure water machine 1 is used to generate deionized water, and the deionized water is transported to the insulated water tank 15 for storage through the first pipe 2. A liquid level feedback switch 3 is fixedly installed in the insulated water tank 15. The liquid level feedback switch 3 is connected to the pure water machine 1 through a wiring harness. The operation of the pure water machine 1 can be controlled according to the liquid level height in the insulated water tank 15, thereby controlling the water production volume.

[0032] It is understandable that the liquid level feedback switch 3 and the water purifier 1 can also be connected to the control unit of the environmental chamber. The control unit controls the operation of the water purifier 1 according to the liquid level changes. The specific setting method can be determined according to actual design requirements, and no excessive restrictions are made here.

[0033] The cooling unit includes a first evaporator 5 and a refrigeration compressor 7. The first evaporator 5 is installed inside the thermal insulation water tank 15 to cool the deionized water. The first evaporator 5 is connected to the refrigeration compressor 7 through a refrigeration pipeline.

[0034] Among them, the refrigeration compressor 7 includes a water inlet and a water outlet. The refrigeration compressor 7 is connected to the first evaporator 5 and the second evaporator 8 respectively through the refrigeration pipeline. The first evaporator 5 and the second evaporator 8 are arranged in parallel, and an electric three-way valve 6 is provided on the pipeline connecting the first evaporator 5, the second evaporator 8 and the water inlet of the refrigeration compressor 7. The electric three-way valve 6 is connected to the control unit for automatic switching of the refrigerant flow path. For example, when the simulation room needs to be cooled, the refrigeration compressor 7 is connected to the second evaporator 8; when cold water needs to be prepared, the refrigeration compressor 7 is connected to the first evaporator 5, that is, the first evaporator 5 and the second evaporator 8 do not work at the same time.

[0035] It can be understood that the electric three-way valve 6 can also be set on the pipeline of the water outlet of the refrigeration compressor 7. The specific setting position can be determined according to actual needs. As long as the operation switching of the first evaporator 5 and the second evaporator 8 can be achieved, there will be no excessive restrictions here.

[0036] A temperature detection unit 4 is also fixedly installed in the insulated water tank 15. The temperature detection unit 4 is a temperature sensor for monitoring the temperature of the deionized water in the insulated water tank 15 and feeding it back to the control unit. The control unit can control the operation of the refrigeration compressor 7 according to the real-time temperature of the deionized water, thereby maintaining the temperature of the deionized water in the insulated water tank 15 within a set range, for example, 0-4°C.

[0037] The insulated water tank 15 is connected to the sprinkler head 12 in the simulation room through the second pipe 10. The second pipe is provided with a flow meter 13 and a water pump 14. The flow meter 13 and the water pump 14 are both connected to the control unit. The water pump 14 is used to pump ice water to the sprinkler head 12. The flow meter 13 is used to monitor the flow rate and feed back the information to the control unit. The control unit controls the speed of the water pump 14 according to the set water flow rate; an electromagnetic stop valve 11 is provided at the connection between the second pipe 10 and the sprinkler head 12 to control the operation of the sprinkler head 12.

[0038] The spray head 12 is fixedly installed on the side wall of the simulation chamber to spray ice water onto the specimen. The rotating support seat 16 is used to support the specimen. The rotating support seat 16 is rotatably set at the center position of the bottom of the simulation chamber. The rotating support seat 16 is driven by a motor, and the motor is connected to the control unit. The rotating support seat 16 can rotate around the axis so that the specimen can be sprayed without dead angles in the horizontal direction.

[0039] Among them, the rotating support base 16 includes a support base and a turntable. The support base is fixedly arranged at the center position of the bottom of the simulation chamber. The turntable is rotatably arranged on the support base, and a gear is provided at the bottom of the turntable. A vertically arranged motor is installed on the support base. The output shaft of the motor is fixedly provided with a transmission gear and engages with the gear at the bottom of the turntable through the transmission gear to realize the driving of the turntable. Deionized water is prepared by the pure water machine 1, which can prevent the spray head 12 from being blocked by scale.

[0040] It is understandable that in other embodiments, a spray head 12 may be fixedly installed on the top of the simulation chamber to spray ice water onto the upper surface of the specimen through the spray head 12; similarly, the turntable may be set into a hollow structure, and a spray head 12 may be set below the turntable to spray ice water onto the lower surface of the specimen. The specific setting position of the spray head 12 can be determined according to actual needs, and no excessive restrictions are imposed here.

[0041] The bottom of the simulation chamber is provided with a drain port 17, which is close to the rotating support seat 16. Figure 3As shown, the bottom of the simulation chamber has a slope inclined toward the center, thereby facilitating the water to gather at the center of the bottom of the simulation chamber and be discharged; Figure 1 As shown, the simulation chamber of the cabin is equipped with a cabin door 18 for taking in and placing test pieces.

[0042] The specific working principle is:

[0043] The test piece is placed on the rotating support seat 16 and the hatch 18 is closed. Hot air is blown into the simulation room by the first fan to increase the room temperature and heat the test piece to the set temperature. The pure water machine 1 works to produce deionized water, and the deionized water is transported to the insulated water tank 15 through the first pipe 2. The electric three-way valve 6 is switched to connect the refrigeration compressor 7 with the first evaporator 5. The refrigerant in the first evaporator 5 exchanges heat with the deionized water in the insulated water tank 15 to prepare ice water. The ice water is transported to the spray head 12 through the second pipe 10 and sprayed onto the test piece through the spray head 12 to simulate ice water impact. During this period, the rotating support seat 16 drives the test piece to rotate to ensure that there is no dead angle in the horizontal spray of the test piece. After the ice water impact simulation is completed, the electric three-way valve 6 is switched to connect the refrigeration compressor 7 with the second evaporator 8, and the second fan blows cold air into the simulation room to cool down. After the cooling is completed, the hatch 18 is opened to take out the test piece.

[0044] In this embodiment, based on the existing environmental chamber heating and cooling functions, an insulated water tank 15, a spray head 12, a first evaporator 5, a flow meter 13, a water pump 14 and other components are added, and the refrigeration pipeline of the refrigeration compressor 7 is adjusted to realize the ice water shock function. The pure water machine 1 provided by the environmental chamber generates the deionized water required for the ice water shock test. The refrigeration compressor 7 provided by the environmental chamber cooperates with the added first evaporator 5 to cool the deionized water inside the insulated water tank 15 to the required temperature (such as 0°C), and the heating unit provided by the environmental chamber is used to heat the test piece in the simulation room to 85°C. The spray head 12 is used to perform the ice water shock test on the test piece. According to the needs, a cold water splashing shock environment can be conveniently and reliably created for the test piece, thereby meeting the needs of performing the splashing ice water shock test on the test product. The environmental chamber has the ice water shock function, which increases the availability of the environmental chamber and reduces the vacancy rate of the equipment. There is no need to purchase an additional dedicated ice water shock test chamber, saving equipment procurement costs.

[0045] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An environmental chamber for ice water shock testing, comprising: The cabin body is provided with a simulation room and an equipment room, and the equipment room is provided with a heating unit, a cooling unit and a pure water unit. The characteristics are that a rotating support seat (16) and a spray head (12) are provided in the simulation room, and a refrigeration unit is also provided in the equipment room. The heating unit and the cooling unit are both communicated with the interior of the simulation room. The pure water unit includes an insulated water tank (15), the insulated water tank (15) is connected to the pure water machine (1) through a first pipe (2), and the insulated water tank (15) is connected to the spray head (12) through a second pipe (10). The refrigeration unit includes a first evaporator (5) and a refrigeration compressor (7). The first evaporator (5) is arranged in the insulated water tank (15), and the refrigeration compressor (7) is connected to the first evaporator (5) and the cooling unit through a refrigeration pipeline and an electric three-way valve (6).

2. The environmental chamber for ice water shock test according to claim 1, characterized in that: A liquid level feedback switch (3) is fixedly installed in the thermal insulation water tank (15), and the liquid level feedback switch (3) and the pure water machine (1) are both connected to the control unit of the environmental chamber.

3. The environmental chamber for ice water shock test according to claim 2, characterized in that: A temperature detection unit (4) is fixedly installed in the heat-insulating water tank (15), and the temperature detection unit (4) and the refrigeration compressor (7) are both connected to the control unit.

4. The environmental chamber for ice water shock test according to claim 2, characterized in that: The control unit is connected to the electric three-way valve (6).

5. The environmental chamber for ice water shock test according to claim 1, characterized in that: A flow meter (13) and a water pump (14) are provided on the second pipeline (10), and both the flow meter (13) and the water pump (14) are connected to the control unit.

6. The environmental chamber for ice water shock test according to claim 1, characterized in that: An electromagnetic stop valve (11) is provided at the connection between the second pipeline (10) and the sprinkler head (12).

7. The environmental chamber for ice water shock test according to claim 1, characterized in that: The rotary support seat (16) is rotatably arranged at the center position of the bottom of the simulation chamber, and the spray head (12) is fixedly arranged on the side wall of the simulation chamber.

8. The environmental chamber for ice water shock test according to claim 7, characterized in that: A drain port (17) is provided at the bottom of the simulation chamber, and the drain port (17) is close to the rotating support seat (16).

9. The environmental chamber for ice water shock test according to claim 8, characterized in that: The bottom of the simulation chamber has a slope that is inclined toward the center.

10. The environmental chamber for ice water shock test according to claim 1, characterized in that: The simulation chamber is equipped with a hatch (18).

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