High and low temperature damp heat test chamber

Abstract

The utility model relates to test box technical field, concretely is a kind of high-low temperature damp heat test chamber, include: cabinet and cabinet door;Support unit, the support unit fixedly arranged in the bottom of cabinet inside, for the support of product is completed to cabinet, and the rotation of product is realized;Temperature and humidity control unit, the temperature and humidity control unit is connected with cabinet, and is connected with support unit, for the circulation flow of air in cabinet inside is realized with support unit cooperation;Wherein, the temperature and humidity control unit includes: air guide subassembly, adjusting assembly and air blowing subassembly, by setting temperature and humidity control unit, cooperation support unit, the temperature and humidity of inside cabinet can be quickly adjusted, and by the autorotation of product and swing air blowing matched therewith, the temperature and humidity distribution of inside cabinet is more balanced, greatly improves the effectiveness and efficiency of detection.

Description

Technical Field

[0001] This utility model relates to the field of test chamber technology, specifically a high and low temperature humidity test chamber. Background Technology

[0002] High and low temperature test chambers are suitable for reliability testing of industrial products under high and low temperature conditions. They are used to test the performance of components and materials of related products in electronic and electrical engineering, automobiles and motorcycles, aerospace, shipbuilding and weaponry, universities, and research institutions under high and low temperature (alternating) cyclic changes. They are mainly used for adaptability testing of electrical and electronic products, as well as their components and other materials under combined high and low temperature environments during transportation and use. They are used in product design, improvement, identification and inspection to evaluate the working quality of the product.

[0003] Existing high and low temperature humidity test chambers lack internal air circulation devices, making it impossible to circulate air within them. This results in inconsistent temperature and humidity levels inside the chambers, affecting the accuracy of test results and creating significant limitations. Therefore, there is an urgent need to develop a new high and low temperature humidity test chamber to overcome these shortcomings in current applications. Utility Model Content

[0004] The purpose of this invention is to provide a high and low temperature humidity test chamber to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high and low temperature humidity test chamber includes: a chamber body and a door, one end of which is connected to the chamber body via a hinge, and the other end of which is connected to the chamber body via a buckle; a support unit, which is fixedly installed at the bottom of the inner side of the chamber body to support the product and enable the product to rotate; and a temperature and humidity control unit, which is connected to the chamber body and the support unit to enable the circulation of air inside the chamber body. The temperature and humidity control unit includes: an air guiding component, an adjusting component, and an air blowing component. The air guiding component is fixedly installed on the outside of the chamber body and connected to the top wall of the chamber body via the adjusting component to absorb air inside the chamber body and to regulate the air temperature and humidity. The air guiding component is also connected to air blowing components symmetrically arranged inside the chamber body. The air blowing components are connected to the support unit to enable synchronous swinging air blowing on both sides and to enable the circulation of air inside the chamber body.

[0007] As a further embodiment of this utility model: the air guiding assembly includes: a control box, an air supply pipe, an air guiding box, a first motor, and a fan. The control box is fixedly installed on the outside of the box body, and the first motor is fixedly installed on the inside of the control box. The output end of the first motor is fixedly connected to the fan installed on the inside of the air guiding box. The air guiding box is fixedly installed on the inside of the control box. One side of the box wall is connected to the air blowing assembly through the air supply pipe, and the other side of the box wall is connected to the adjustment assembly, which is used to cooperate with the adjustment assembly and the air blowing assembly to realize the circulation of air inside the box body.

[0008] As a further embodiment of this utility model: the adjustment component includes: an intake pipe, a cooling component, a heating component, a humidifier, an air guide pipe, and a branch pipe. One end of the intake pipe is connected to the top wall of the box, and the other end is connected to the cooling component located inside the control box. The output end of the cooling component is connected to the input end of the heating component. The output end of the heating component is connected to the air guide box through the air guide pipe. A branch pipe is fixedly installed on the air guide pipe, and the other end of the branch pipe is connected to the humidifier fixedly installed inside the control box. A solenoid valve is fixedly installed inside the branch pipe.

[0009] As a further embodiment of this utility model: the air blowing assembly includes: a connecting box, an air blowing pipe, a gear, and a rack. The connecting box is fixedly installed inside the box and connected to the air supply pipe. Several air blowing pipes connected to the connecting box are symmetrically arranged on both sides of the support unit. The air blowing pipes are rotatably connected to the box wall of the connecting box. Several air outlet pipes are fixedly installed on the pipe wall of the air blowing pipes on both sides near the support unit. A gear is fixedly installed on the outside of the air blowing pipe. A rack is meshed and connected to the outside of the gear. The rack is slidably connected to the inner wall of the box. A piston groove connected to the support unit is also provided on the inner side of the rack to cooperate with the support unit to realize the synchronous swing of each air blowing pipe.

[0010] As a further embodiment of this utility model: the support unit includes: a support platform, a rotating rod, a placement plate, a movable frame, a control tube, an adjusting tube, a second motor, a cam, and a transmission box. The support platform is fixedly installed at the bottom of the inner side of the box. A rotating rod is rotatably installed on the top shell wall of the support platform. A placement plate is fixedly installed on the outer side of one end of the rotating rod, and the other end is connected to the output end of the second motor. The second motor is fixedly installed at the bottom of the inner side of the support platform. A cam is also fixedly installed on the rotating rod. Movable frames are abutted on both sides of the cam. The movable frames are slidably connected to the shell wall of the support platform. A spring is fixedly installed between the outer wall of the support platform and the movable frames. A transmission box connected to the support platform is installed on the outer side of both movable frames. A control tube is fixedly installed on the box wall of the transmission box. A control component connected to the movable frame is slidably installed inside the control tube. An adjusting tube is also fixedly installed on the box wall of the transmission box. The other end of the adjusting tube is installed inside the piston groove, and an adjusting piston is fixedly installed on the outer side and slidably connected to the piston groove.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The product under test is placed on the support unit, and the chamber door is closed. The air guiding component draws in air from inside the chamber through the regulating component, which can adjust the temperature and humidity of the air as needed. The adjusted air enters the inside of the blowing component and is blown towards the product from both sides of the support unit. At the same time, the support unit drives the product to rotate and drives the blowing component to swing, thereby making the temperature and humidity inside the chamber more even and ensuring the effectiveness of the test. Through the circulation of air inside the chamber, the efficiency of temperature and humidity control is greatly improved, thereby improving the testing efficiency. This application, by setting a temperature and humidity control unit in conjunction with the support unit, can quickly adjust the temperature and humidity inside the chamber. Through the rotation of the product and the corresponding swinging blowing, the temperature and humidity distribution inside the chamber is more even, greatly improving the effectiveness and efficiency of the test. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the high and low temperature humidity test chamber.

[0014] Figure 2 This is a schematic diagram of the internal structure of a high and low temperature humidity test chamber.

[0015] Figure 3 This is a cross-sectional view of the control box in a high and low temperature humidity test chamber.

[0016] Figure 4 This is a cross-sectional view of the support platform in the high and low temperature humidity test chamber.

[0017] In the diagram: 1. Box body; 2. Box door; 3. Hinge; 4. Control box; 5. Intake pipe; 6. Support platform; 7. Rotating rod; 8. Placement plate; 9. Movable frame; 10. Control pipe; 11. Adjustment pipe; 12. Rack; 13. Connection box; 14. Air blowing pipe; 15. Gear; 16. Air delivery pipe; 17. Temperature sensor; 18. Humidity sensor; 19. Air guide box; 20. First motor; 21. Fan; 22. Refrigeration component; 23. Heating component; 24. Humidifier; 25. Air guide pipe; 26. Branch pipe; 27. Second motor; 28. Cam; 29. ​​Transmission box; 30. Piston groove. Detailed Implementation

[0018] The technical solution of this application will be further described in detail below with reference to specific embodiments.

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] Please see Figure 1 and Figure 2 In one embodiment of this utility model, a high and low temperature humidity test chamber includes: a chamber body 1 and a door 2, one end of the door 2 being connected to the chamber body 1 via a hinge 3, and the other end being connected to the chamber body 1 via a buckle; a support unit, which is fixedly installed at the bottom inner side of the chamber body 1, used to cooperate with the chamber body 1 to support the product and enable the product to rotate; and a temperature and humidity control unit, which is connected to the chamber body 1 and the support unit, used to cooperate with the support unit to achieve air circulation inside the chamber body 1; wherein, the temperature and humidity control unit includes: an air guiding component, an adjustment component, and an air blowing component, the air guiding component being fixedly installed on the outside of the chamber body 1 and connected to the top wall of the chamber body 1 via the adjustment component, used to absorb air inside the chamber body 1 and cooperate with the adjustment component to adjust the air temperature and humidity, the air guiding component is also connected to air blowing components symmetrically arranged inside the chamber body 1, the air blowing components are connected to the support unit, used to cooperate with the support unit to achieve synchronous swinging air blowing on both sides, and cooperate with the air guiding component to achieve air circulation inside the chamber body 1.

[0021] In this embodiment, when the device is running, the product under test is placed on the support unit, the chamber door 2 is closed, and the air guiding component absorbs air from inside the chamber 1 through the regulating component. The regulating component can adjust the temperature and humidity of the air as needed. The adjusted air enters the inside of the blowing component and blows towards the product from both sides of the support unit. At the same time, the support unit drives the product to rotate and drives the blowing component to swing, thereby making the temperature and humidity inside the chamber 1 more even and ensuring the effectiveness of the test. Through the circulation of air inside the chamber 1, the control efficiency of temperature and humidity is greatly improved, thereby improving the detection efficiency. This application, by setting a temperature and humidity control unit in conjunction with the support unit, can quickly adjust the temperature and humidity inside the chamber 1. Through the rotation of the product and the corresponding swinging blowing, the temperature and humidity distribution inside the chamber 1 is more even, greatly improving the effectiveness and efficiency of the test.

[0022] In one embodiment of this utility model, please refer to Figure 1 , Figure 2 and Figure 3 The air guiding assembly includes: a control box 4, an air supply pipe 16, an air guiding box 19, a first motor 20, and a fan 21. The control box 4 is fixedly installed on the outside of the box 1. The first motor 20 is fixedly installed inside the control box 4. The output end of the first motor 20 is fixedly connected to the fan 21 installed inside the air guiding box 19. The air guiding box 19 is fixedly installed inside the control box 4. One side of the box wall is connected to the air blowing assembly through the air supply pipe 16, and the other side of the box wall is connected to the adjustment assembly, which is used to cooperate with the adjustment assembly and the air blowing assembly to realize the circulation of air inside the box 1.

[0023] In this embodiment, the first motor 20 drives the fan 21 to rotate, and the air inside the box 1 can enter the air guide box 19 along the regulating component and enter the air blowing component along the air supply pipe 16, so as to realize the circulation of air inside the box 1, thereby improving the equipment's control efficiency of temperature and humidity inside the box 1.

[0024] In one embodiment of this utility model, please refer to Figure 3 The regulating assembly includes: an intake pipe 5, a cooling component 22, a heating component 23, a humidifier 24, an air guide pipe 25, and a branch pipe 26. One end of the intake pipe 5 is connected to the top wall of the housing 1, and the other end is connected to the cooling component 22 located inside the control box 4. The output end of the cooling component 22 is connected to the input end of the heating component 23. The output end of the heating component 23 is connected to the air guide box 19 through the air guide pipe 25. A branch pipe 26 is fixedly installed on the air guide pipe 25. The other end of the branch pipe 26 is connected to the humidifier 24 fixedly installed inside the control box 4. A solenoid valve is fixedly installed inside the branch pipe 26.

[0025] In this embodiment, the refrigeration component 22 includes a compressor, a condenser, a shut-off valve, and an evaporator. The refrigeration cycle employs a reverse Carnot cycle, which consists of two isothermal processes and two adiabatic processes. The refrigerant is adiabatically compressed to a higher pressure by the compressor, consuming work and raising the exhaust temperature. Then, the refrigerant isothermally exchanges heat with the surrounding medium through the condenser, transferring heat to the surrounding medium. Next, the refrigerant adiabatically expands through the shut-off valve, doing work. Finally, the refrigerant isothermally absorbs heat from a higher-temperature object through the evaporator, lowering the temperature of the object being cooled. This cycle repeats continuously. To achieve the purpose of cooling, the heating element 23 adopts a high-quality nickel-chromium wire heater. When the air guiding assembly is running, the air inside the box 1 enters the cooling element 22 and the heating element 23 in sequence along the air intake pipe 5. The operation of the cooling element 22 and the heating element 23 is controlled according to the temperature requirements. Then, the air enters the inside of the air guiding pipe 25. The humidifier 24 can control the humidity of the air through the branch pipe 26, thereby completing the adjustment of the air temperature and humidity. Then, the treated air is sent into the inside of the air guiding box 19, and works with the air blowing assembly to complete the adjustment of the temperature and humidity inside the box 1.

[0026] In one embodiment of this utility model, please refer to Figure 2 , Figure 3 and Figure 4The air blowing assembly includes: a connecting box 13, an air blowing pipe 14, a gear 15, and a rack 12. The connecting box 13 is fixedly installed inside the box 1 and connected to the air supply pipe 16. Several air blowing pipes 14 connected to the connecting box 13 are symmetrically arranged on both sides of the support unit. The air blowing pipes 14 are rotatably connected to the box wall of the connecting box 13. Several air outlet pipes are fixedly installed on the pipe wall of the air blowing pipes 14 near the support unit on both sides. A gear 15 is fixedly installed on the outside of the air blowing pipe 14. A rack 12 is meshed and connected to the outside of the gear 15. The rack 12 is slidably connected to the inner wall of the box 1. A piston groove 30 connected to the support unit is also provided on the inner side of the rack 12 to cooperate with the support unit to realize the synchronous swing of each air blowing pipe 14.

[0027] In this embodiment, a sealing ring is fixedly installed on the wall of the air blowing pipe 14 and the connecting box 13. By setting the air blowing assembly, the air entering the air guide box 19 enters the connecting box 13 along the air supply pipe 16 and enters the air blowing pipe 14. It is discharged from the air outlet pipe set on the air blowing pipe 14. When the support unit is running, it can realize the synchronous lifting and lowering of the racks 12 on both sides. The racks 12 and the gears 15 can realize the swing of the air blowing pipe 14, thereby ensuring the uniformity of temperature and humidity inside the chamber 1, thus ensuring the accuracy of the test results and further improving the efficiency of the high and low temperature humidity test chamber.

[0028] In one embodiment of this utility model, please refer to Figure 2 and Figure 4 The support unit includes: a support platform 6, a rotating rod 7, a placement plate 8, a movable frame 9, a control pipe 10, an adjustment pipe 11, a second motor 27, a cam 28, and a transmission box 29. The support platform 6 is fixedly installed at the bottom inside the housing 1. A rotating rod 7 is rotatably installed on the top shell wall of the support platform 6. A placement plate 8 is fixedly installed on the outer side of one end of the rotating rod 7, and the other end is connected to the output end of the second motor 27. The second motor 27 is fixedly installed at the bottom inside the support platform 6. A cam 28 is also fixedly installed on the rotating rod 7, and both sides of the cam 28 are abutted. The movable frame 9 is slidably connected to the shell wall of the support platform 6. A spring is fixedly installed between the outer wall of the support platform 6 and the movable frame 9. A transmission box 29 connected to the support platform 6 is installed on the outer side of both movable frames 9. A control tube 10 is fixedly installed on the box wall of the transmission box 29. A control component connected to the movable frame 9 is slidably installed on the inner side of the control tube 10. An adjustment tube 11 is also fixedly installed on the box wall of the transmission box 29. The other end of the adjustment tube 11 is installed inside the piston groove 30, and an adjustment piston is fixedly installed on the outer side and slidably connected to the piston groove 30.

[0029] In this embodiment, the product to be tested is placed on the placement plate 8. During testing, the second motor 27 drives the rotating rod 7 to rotate, which in turn drives the placement plate 8 to rotate, thus achieving the product's rotation. Simultaneously, the rotating rod 7 drives the cam 28 to rotate, which, in conjunction with the spring, achieves the reciprocating motion of the movable frame 9. The movable frame 9 drives the control component to move inside the control tube 10. The control component includes a control piston slidably disposed inside the control tube 10 and a control rod fixedly connected to the control piston. The other end of the control rod is fixedly connected to the movable frame 9. Air flows inside the transmission box 29, and the air inside the transmission box 29 enters and exits the piston groove 30 along the regulating tube 11. In conjunction with the regulating piston disposed outside the regulating tube 11, the rack 12 can be raised and lowered, thereby achieving the oscillation of the air blowing tube 14.

[0030] In one embodiment of this utility model, a temperature sensor 17 and a humidity sensor 18 are fixedly installed inside the housing 1. Both the temperature sensor 17 and the humidity sensor 18 are electrically connected to the controller. The controller is used to control the cooling component 22 and the heating component 23, and works with the temperature sensor 17 and the humidity sensor 18 to adjust the air temperature and humidity.

[0031] In this high and low temperature humidity test chamber, the product to be tested is placed on the placement plate 8. During testing, the second motor 27 drives the rotating rod 7 to rotate, which in turn drives the placement plate 8 to rotate, thus achieving the product's rotation. Simultaneously, the rotating rod 7 drives the cam 28 to rotate, which, in conjunction with a spring, achieves the reciprocating motion of the movable frame 9. The movable frame 9 drives the control components to move inside the control tube 10, and air flows inside the transmission box 29. The air inside the transmission box 29 enters and exits the piston groove 30 along the regulating tube 11. In conjunction with the regulating piston located outside the regulating tube 11, the rack 12 can be raised and lowered, thereby achieving the oscillation of the air blowing pipe 14. The first motor 20 drives the fan 21 to rotate. Air from inside the housing 1 enters the cooling component 22 and heating component 23 sequentially through the intake pipe 5. The operation of the cooling component 22 and heating component 23 is controlled according to the temperature requirements. Subsequently, the air enters the inside of the air guide pipe 25. The humidifier 24 can control the humidity of the air through the branch pipe 26, thereby completing the adjustment of the air temperature and humidity. Then, the treated air is sent into the inside of the air guide box 19. The air entering the inside of the air guide box 19 enters the inside of the connecting box 13 through the air supply pipe 16, and enters the inside of the blowing pipe 14, and is discharged from the air outlet pipe set on the blowing pipe 14.

[0032] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A high and low temperature humidity test chamber, characterized in that, include: The box body and the box door, wherein one end of the box door is connected to the box body by a hinge, and the other end is connected to the box body by a buckle; A support unit is fixedly installed at the bottom inside the box to cooperate with the box to support the product and enable the product to rotate. A temperature and humidity control unit is connected to the enclosure and a support unit, and is used to cooperate with the support unit to realize the circulation of air inside the enclosure. The temperature and humidity control unit includes an air guiding component, an adjustment component, and an air blowing component. The air guiding component is fixedly installed on the outside of the box and connected to the top wall of the box through the adjustment component. It is used to absorb the air inside the box and, together with the adjustment component, to regulate the temperature and humidity of the air. The air guiding component is also connected to the air blowing components symmetrically arranged inside the box. The air blowing components are connected to the support unit and are used to work with the support unit to realize synchronous swinging air blowing on both sides and to work with the air guiding component to realize the circulation of air inside the box.

2. The high and low temperature humidity test chamber according to claim 1, characterized in that, The air guiding assembly includes: a control box, an air supply pipe, an air guiding box, a first motor, and a fan. The control box is fixedly installed on the outside of the box, and the first motor is fixedly installed on the inside of the control box. The output end of the first motor is fixedly connected to the fan installed on the inside of the air guiding box. The air guiding box is fixedly installed on the inside of the control box. One side of the box wall is connected to the air blowing assembly through the air supply pipe, and the other side of the box wall is connected to the adjustment assembly, which is used to cooperate with the adjustment assembly and the air blowing assembly to realize the circulation of air inside the box.

3. The high and low temperature humidity test chamber according to claim 2, characterized in that, The regulating assembly includes: an air intake pipe, a cooling component, a heating component, a humidifier, an air guide pipe, and a branch pipe. One end of the air intake pipe is connected to the top wall of the housing, and the other end is connected to the cooling component located inside the control box. The output end of the cooling component is connected to the input end of the heating component, and the output end of the heating component is connected to the air guide box through the air guide pipe. A branch pipe is fixedly installed on the air guide pipe, and the other end of the branch pipe is connected to the humidifier fixedly installed inside the control box. A solenoid valve is fixedly installed inside the branch pipe.

4. The high and low temperature humidity test chamber according to claim 3, characterized in that, The air blowing assembly includes: a connecting box, air blowing pipes, gears, and racks. The connecting box is fixedly installed inside the box and connected to the air supply pipe. Several air blowing pipes connected to the connecting box are symmetrically arranged on both sides of the support unit. The air blowing pipes are rotatably connected to the box wall of the connecting box. Several air outlet pipes are fixedly installed on the pipe wall of the air blowing pipes near the support unit on both sides. Gears are fixedly installed on the outside of the air blowing pipes. A rack is meshed with the outside of the gears. The rack is slidably connected to the inner wall of the box. A piston groove connected to the support unit is also provided on the inner side of the rack to cooperate with the support unit to realize the synchronous swing of each air blowing pipe.

5. The high and low temperature humidity test chamber according to claim 4, characterized in that, The support unit includes: a support platform, a rotating rod, a placement plate, a movable frame, a control tube, an adjusting tube, a second motor, a cam, and a transmission box. The support platform is fixedly installed at the bottom inside the box. A rotating rod is rotatably installed on the top shell wall of the support platform. A placement plate is fixedly installed on the outer side of one end of the rotating rod, and the other end is connected to the output end of the second motor. The second motor is fixedly installed at the bottom inside the support platform. A cam is also fixedly installed on the rotating rod. Movable frames are abutted on both sides of the cam. The movable frames are slidably connected to the shell wall of the support platform. A spring is fixedly installed between the outer wall of the support platform and the movable frames. A transmission box connected to the support platform is installed on the outer side of both movable frames. A control tube is fixedly installed on the wall of the transmission box. A control component connected to the movable frame is slidably installed inside the control tube. An adjusting tube is also fixedly installed on the wall of the transmission box. The other end of the adjusting tube is installed inside the piston groove, and an adjusting piston is fixedly installed on the outer side and slidably connected to the piston groove.

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