Ultrahigh and low temperature comprehensive test box

Abstract

The utility model discloses an ultrahigh and low temperature comprehensive test box, which comprises a high temperature cavity and a low temperature cavity, a heating device is arranged in the high temperature cavity for heating, a refrigerating device is arranged in the low temperature cavity for refrigerating, the high temperature cavity and the low temperature cavity are communicated through a connecting channel, and a first air door and a second air door are respectively arranged on two sides of the connecting channel. The lower end of the connecting channel is connected with a compressed air inlet, and the upper end is provided with an air outlet. According to the utility model, the high-temperature cavity and the low-temperature cavity are communicated through the connecting channel, and the first air door and the second air door are arranged for isolation, so that an ultra-high-temperature test and an ultra-low-temperature test can be independently finished only by opening and closing the first air door and the second air door, and a refrigerant in the low-temperature cavity cannot be carbonized due to high temperature. And meanwhile, compressed air is introduced into the connecting channel from bottom to top, so that hot air leaked from the first air door in the high-temperature cavity due to the sealing problem during the high-temperature test can be prevented from entering the connecting channel and then entering the low-temperature cavity to cause the carbonization of the refrigerant.

Description

Technical Field

[0001] The utility model belongs to the technical field of test chambers, and in particular relates to an ultra-high and low temperature comprehensive test chamber. Background Art

[0002] Scientific research and testing of materials requires the ability to achieve both ultra-high and low temperatures in the same chamber. Currently, the most widely used temperature range in the market is -70°C to 180°C. While the low temperature can be lower, current technology cannot extend this range beyond 180°C due to the refrigerant's tendency to carbonize at temperatures above 180°C, causing the refrigerant to lose its cooling effect. Therefore, current testing machines utilize a single chamber to perform both cooling and heating. Therefore, excessively high heating temperatures can easily cause carbonization of the refrigerant, making them unable to meet customer sensor simulation requirements under conditions of 500°C and -70°C. Utility Model Content

[0003] In view of the above-mentioned shortcomings, the purpose of the present invention is to provide an ultra-high and low temperature comprehensive test chamber, which solves the problem in the prior art that it is impossible to complete simulation tests on parts at ultra-high and ultra-low temperatures in the same studio.

[0004] In order to achieve the above purpose, the technical solution provided by the present utility model is:

[0005] An ultra-high and low temperature comprehensive test chamber includes a high-temperature chamber and a low-temperature chamber. A heating device is provided in the high-temperature chamber for heating, and a refrigeration device is provided in the low-temperature chamber for cooling. The high-temperature chamber and the low-temperature chamber are connected through a connecting channel, and a first damper and a second damper are respectively provided on both sides of the connecting channel. The lower end of the connecting channel is connected to the compressed air inlet, and the upper end is provided with an air outlet.

[0006] With the above-mentioned structural design, the test box is set as two chambers, a high-temperature chamber and a low-temperature chamber, which are connected through a connecting channel. When a high-temperature test needs to be completed, the high-temperature test can be completed by simply closing the first damper and the second damper. When a low-temperature test needs to be completed, the high-temperature chamber heating device does not work, and the first damper and the second damper are opened. The cold air in the low-temperature chamber enters the high-temperature chamber to form a low temperature to complete the low-temperature test. The low-temperature chamber of this solution is set separately and isolated from the high-temperature chamber by the first damper and the second damper, so that an ultra-high temperature test can be completed separately in the high-temperature chamber. The refrigerant in the low-temperature chamber will not be carbonized due to the high temperature, and rapid switching between ultra-high temperature and ultra-low temperature tests can be achieved. At the same time, the connecting channel is connected to compressed air from bottom to top, which can prevent the hot air leaking from the high-temperature chamber from the first damper due to sealing problems during the high-temperature test from entering the connecting channel and then entering the low-temperature chamber. The high-temperature gas can be directly discharged by compressed air.

[0007] Preferably, the high-temperature chamber and the low-temperature chamber are connected through two groups of connecting channels, two groups of first air doors are provided in the corresponding high-temperature chamber, and two groups of second air doors are provided in the corresponding low-temperature chamber, and both the first air doors and the second air doors are provided with sealing structures.

[0008] By adopting the above-mentioned structural design, rapid switching of low-temperature tests can be achieved through two sets of connecting channels. At the same time, the first air door and the second air door are set to prevent the hot air in the high-temperature chamber from entering the low-temperature chamber, which plays a double insurance role. At the same time, the sealing structure on the first air door and the second air door further improves the isolation effect of the high-temperature chamber and the low-temperature chamber.

[0009] Preferably, the diameter of the air outlet on the connecting channel is larger than the diameter of the air inlet, the air inlet is externally connected to an air compressor for air supply, and the air outlet protrudes from the upper end surface of the test box.

[0010] With the above structural design, the small-diameter setting of the lower air inlet can increase the impact force of the compressed air and discharge the hot air entering the connecting channel from the large-diameter air outlet as much as possible.

[0011] Preferably, the heating device adopts electric heating and is provided with a drive motor to drive the fan so that the air circulates in the high-temperature chamber after being heated.

[0012] Preferably, the temperature in the high-temperature chamber can reach a maximum of 500°C, and the temperature in the low-temperature chamber can reach a minimum of -70°C.

[0013] Preferably, a vibration device is provided below the high-temperature chamber, and a vibration placement plate is provided on the upper end of the vibration device and is located in the high-temperature chamber to perform vibration testing on parts at high or low temperatures.

[0014] Preferably, the first damper and the second damper are both provided with a rotating shaft, and the upper end of the rotating shaft is connected to the output shaft of the cylinder provided at the upper end of the test box and drives the rotating shaft to rotate, thereby realizing the opening and closing or opening degree adjustment of the first damper and the second damper.

[0015] The above structural design can realize automatic opening and closing of the first damper and the second damper, and at the same time adjust the opening of the first damper and the second damper according to the test requirements, thereby improving the automation and accuracy of the test equipment.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. The utility model connects the high-temperature chamber and the low-temperature chamber through a connecting channel and provides a first damper and a second damper for isolation. Thus, ultra-high temperature test and ultra-low temperature test can be completed separately by simply opening and closing the first damper and the second damper, without carbonization of the refrigerant in the low-temperature chamber due to high temperature.

[0018] 2. The first damper and the second damper on the connecting passage between the high-temperature chamber and the low-temperature chamber of the present invention can prevent the hot air in the high-temperature chamber from entering the low-temperature chamber when performing high-temperature tests in the high-temperature chamber. Therefore, the first damper and the second damper can play the role of double insurance sealing;

[0019] 3. The connecting channel of the utility model is connected to compressed air from bottom to top, which can prevent the hot air leaking from the first air door in the high-temperature cavity due to sealing problems from entering the connecting channel and then into the low-temperature cavity during the high-temperature test. The high-temperature gas can be directly discharged together with the compressed air through the compressed air to prevent it from entering the low-temperature cavity and causing refrigerant carbonization. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 It is a cross-sectional view of the present utility model.

[0023] In the picture:

[0024] High temperature chamber 1, first damper 1a, low temperature chamber 2, second damper 2a, connecting channel 3, air inlet 3a, air outlet 3b, driving motor 4, vibration device 5, rotating shaft 6, cylinder 7, output shaft 7a. DETAILED DESCRIPTION

[0025] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the embodiments and the accompanying drawings.

[0026] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] See also Figure 1 and Figure 2 A comprehensive ultra-high and low-temperature test chamber comprises a high-temperature chamber 1 and a low-temperature chamber 2. The high-temperature chamber 1 is heated by an electrically heated heating device and equipped with a drive motor 4 to drive a fan, causing heated air to circulate within the high-temperature chamber 1. The low-temperature chamber 2 is cooled by a refrigeration device. The temperature within the high-temperature chamber 1 can reach a maximum of 500°C, while the temperature within the low-temperature chamber 2 can reach a minimum of -70°C. The high-temperature and low-temperature chambers 1 and 2 are connected by a connecting channel 3. A first damper 1a and a second damper 2a are provided on either side of the connecting channel 3, respectively. This allows for the high-temperature and low-temperature tests to be conducted separately, preventing carbonization of the refrigerant in the low-temperature chamber due to ultra-high temperatures. The lower end of the connecting channel 3 is connected to a compressed air inlet 3a, and the upper end is provided with an outlet 3b. Compressed air is introduced below the connecting channel 3. If the first damper 1a fails to seal, allowing hot air to enter the connecting channel 3, the compressed air can be expelled from the connecting channel 3, preventing it from entering the low-temperature chamber 2.

[0028] In this embodiment, the high-temperature chamber 1 and the low-temperature chamber 2 are connected via two sets of connecting channels 3. Two sets of first dampers 1a are provided in the corresponding high-temperature chamber 1, and two sets of second dampers 2a are provided in the corresponding low-temperature chamber 2. Both the first dampers 1a and the second dampers 2a are provided with sealing structures. A rotating shaft 6 is provided on each of the first and second dampers 1a and 2a. The upper end of the rotating shaft 6 is connected to the output shaft 7a of the cylinder 7 located at the upper end of the test chamber, driving the rotating shaft 6 to rotate, thereby adjusting the opening and closing or the opening degree of the first and second dampers 1a and 2a.

[0029] In this embodiment, the diameter of the air outlet 3b on the connecting channel 3 is larger than that of the air inlet 3a. The air inlet 3a is connected to an external air compressor for air supply, and the air outlet 3b protrudes from the upper end surface of the test chamber. Due to the smaller diameter of the air inlet 3a, the compressed air entering is at a higher pressure, which can expel the hot air.

[0030] A vibration device 5 is provided below the high temperature chamber 1 , and a vibration placement plate is provided on the upper end of the vibration device 5 , which is located in the high temperature chamber 1 to perform vibration testing on parts at high or low temperatures.

[0031] The working principle of this utility model is as follows:

[0032] When a high-temperature test is required on a sensor component, the component to be tested is placed in high-temperature chamber 1. Cylinder 7 then rotates shaft 6, closing first damper 1a and second damper 2a. The heating device in high-temperature chamber 1 then operates, raising the temperature within chamber 1 to the designated test temperature, which can reach 500°C to complete the test. If a vibration test is required at this temperature, vibration device 5 operates to complete the test. During the high-temperature test, compressed air is introduced into connecting channel 3 to prevent hot air from entering low-temperature chamber 1 and to allow hot air to be exhausted from above. When a low-temperature test is required, the heating device in high-temperature chamber 1 is deactivated, and the component is similarly placed in chamber 1, with the chamber door closed. Cylinder 7 then rotates shaft 6, opening first damper 1a and second damper 2a, connecting high-temperature chamber 1 and low-temperature chamber 2. Cool air from low-temperature chamber 2 then enters high-temperature chamber 1, lowering the temperature within chamber 1 to the test temperature. While cool air from low-temperature chamber 2 enters high-temperature chamber 1 through connecting channel 3, compressed air is stopped from entering air inlet 3a at the lower end of connecting channel 3.

[0033] Therefore, the comprehensive test box of the present invention can connect the high temperature chamber 1 and the low temperature chamber 2 through the connecting channel 3, and isolate them through the first air door 1a and the second air door 2a, thereby realizing the switching between ultra-high temperature test and low temperature test, thereby improving the versatility of the equipment.

[0034] Based on the disclosures and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and modifications and variations of the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation to the present invention. Other devices that are identical or similar to the above devices are also within the scope of protection of the present invention.

Claims

1. An ultra-high and low temperature comprehensive test chamber, characterized in that: The invention comprises a high-temperature chamber (1) and a low-temperature chamber (2); a heating device is provided in the high-temperature chamber (1) for heating, and a refrigeration device is provided in the low-temperature chamber (2) for refrigeration; the high-temperature chamber (1) and the low-temperature chamber (2) are connected via a connecting channel (3), and a first damper (1a) and a second damper (2a) are provided on both sides of the connecting channel (3); the lower end of the connecting channel (3) is connected to an air inlet (3a) for compressed air, and the upper end is provided with an air outlet (3b).

2. The ultra-high and low temperature comprehensive test chamber according to claim 1, characterized in that: The high-temperature chamber (1) and the low-temperature chamber (2) are connected via two groups of connecting channels (3); two groups of first dampers (1a) are provided in the corresponding high-temperature chamber (1); two groups of second dampers (2a) are provided in the corresponding low-temperature chamber (2); and both the first dampers (1a) and the second dampers (2a) are provided with sealing structures.

3. The ultra-high and low temperature comprehensive test chamber according to claim 1, characterized in that: The diameter of the air outlet (3b) on the connecting channel (3) is larger than the diameter of the air inlet (3a); the air inlet (3a) is connected to an external air compressor for air supply; and the air outlet (3b) protrudes from the upper end surface of the test box.

4. The ultra-high and low temperature comprehensive test chamber according to claim 1, characterized in that: The heating device adopts electric heating and is provided with a driving motor (4) to drive the fan to operate, so that the air circulates in the high-temperature chamber (1) after being heated.

5. The ultra-high and low temperature comprehensive test chamber according to claim 1, characterized in that: The temperature in the high-temperature chamber (1) can reach a maximum of 500° C., and the temperature in the low-temperature chamber (2) can reach a minimum of -70° C.

6. The ultra-high and low temperature comprehensive test chamber according to claim 1, characterized in that: A vibration device (5) is provided below the high-temperature chamber (1), and a vibration placement plate is provided at the upper end of the vibration device (5) and is located in the high-temperature chamber (1) to perform vibration testing on parts at high or low temperatures.

7. The ultra-high and low temperature comprehensive test chamber according to claim 1, characterized in that: The first damper (1a) and the second damper (2a) are both provided with a rotating shaft (6), and the upper end of the rotating shaft (6) is connected to the output shaft (7a) of the cylinder (7) provided at the upper end of the test box and drives the rotating shaft (6) to rotate, thereby realizing the opening and closing of the first damper (1a) and the second damper (2a).

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