High-low-temperature low-pressure test box with rapid temperature change

Abstract

The utility model relates to the field of high-low-temperature low-pressure test boxes, in particular to a high-low-temperature low-pressure test box with rapid temperature change, which comprises a box body used for bearing a rapid temperature change assembly and an embedded groove arranged outside the box body and used for placing an air cooler. The device is provided with the box body, the air cooler, the cold air pipe, the diffuser fan, the hot air blower, the hot air pipe and the hot air port, when the device is used for carrying out high and low temperature tests on test articles, the power of the air cooler and the hot air blower is large, and a large amount of hot air and cold air can be rapidly provided for the test articles in the box body for carrying out the high and low temperature tests; meanwhile, when the hot air and the cold air enter the box body, the hot air and the cold air in the box body can be blown through the flow diffusing fans on the two sides, the hot air and the cold air are diffused into the whole box body, the purpose of rapid temperature change of the device is achieved, and the overall test range of the device is expanded through matched use; and the device can meet the high and low temperature test work of different test articles.

Description

Technical Field

[0001] The utility model relates to the field of high-low-temperature and low-pressure test boxes, in particular to a high-low-temperature and low-pressure test box with rapid temperature change. Background Art

[0002] High-low-temperature and low-pressure test chambers are mainly used for electronic technology products including components, materials and instruments used in aviation, aerospace, electronics, national defense, scientific research and other industrial departments. They can carry out storage and transportation reliability tests under the unidirectional or simultaneous action of high-low-temperature and low-pressure, and can also test the electrical performance parameters of the test pieces by energizing them at the same time. High-low-temperature and low-pressure test chambers simulate the environment under different climatic conditions by heating, cooling and dehumidification, so as to test the reliability and durability of products under different environments. It can simulate conditions under extremely high temperature, low temperature and low pressure environments to ensure that the products can work normally under extreme conditions.

[0003] After searching, a high-low temperature and low-pressure test box with a publication number of CN205965874U is found, which specifically discloses a high-low temperature and low-pressure test box, including a front box body and a rear box body, which are connected by welding, and an opening is provided on the front surface of the front box body, and a box door is provided on one side of the opening, and the box door is connected to the front box body by a hinge. The front box body and the rear box body are integrated into one body, so that the appearance is compact and beautiful, and the device is more convenient to move by connecting the seat and casters. A sliding track is provided in the front box body, and the sliding support plate slides on the sliding track, so that it is more convenient to adjust the space in the test box, and it is more convenient to observe the experimental object through the observation window. A heating wire sealing strip and a heating film are provided on one side of the box body, and the heating wire sealing strip and the heating film make the heating of the front box body faster. The high-low temperature and low-pressure test box has a simple structure and is easy to move.

[0004] During the use of the existing high and low temperature and low pressure test chamber, since the high and low temperatures are achieved by cold air and heating tubes, such heating and cooling methods are slow, and the temperature inside the chamber needs to rely on cold air or hot air to slowly cover the test product, which cannot meet the purpose of rapid temperature change. In addition, the above-mentioned comparative case does not have a means of rapid cooling and heating. In this way, when encountering special materials that need to be tested for rapid temperature change, the high and low temperature and low pressure test chamber cannot meet the test requirements and also delays the overall test progress.

[0005] Therefore, it is necessary to invent a high-low temperature and low-pressure test chamber with rapid temperature change to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a high-low temperature and low-pressure test box with rapid temperature change, which realizes the purpose of rapid temperature change of the device through a box body, a cold air machine, a cold air duct, a diffuser fan, a hot air machine, a hot air duct and a hot air outlet. In this way, the overall test range of the device is expanded when used in combination, so that the device can meet the needs of different test products for high and low temperature testing. The angle of the air outlet fan blades in the hot air outlet can be adjusted by a rotating shaft to make the hot air blow out more evenly, thereby ensuring the accuracy of the test results of the test products when the high-low temperature and low-pressure test box is tested internally. This solves the problem that in the prior art, the high-low temperature and low-pressure test box is used, because the high and low temperatures are achieved by cold air and heating tubes, such heating and cooling means are slow, and the temperature inside the box body still needs to rely on cold air or hot air to slowly cover the test products, which cannot meet the purpose of rapid temperature change. In the above-mentioned comparative case, no means of rapid cooling and heating are set. In this way, when encountering special materials that need to be tested for rapid temperature change, the high-low temperature and low-pressure test box cannot meet the test requirements and also delays the overall test progress.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-low temperature and low-pressure test box with rapid temperature change, comprising a box body for carrying a rapid temperature change component;

[0008] The embedded groove is provided on the outside of the box body and is used to place the air cooler, and a cold air duct is fixedly installed at one end of the air cooler, and an air outlet is fixedly connected to the other end of the cold air duct;

[0009] The inner grooves are provided on both sides of the box body and are used to install the diffuser fan, and a temperature sensor is fixedly installed above the inner grooves;

[0010] A hot air blower is arranged on the top of the box and is used to heat the inside of the box. A hot air pipe is fixedly installed at one end of the hot air blower, a hot air outlet is fixedly connected to the other end of the hot air pipe, a rotating shaft is arranged inside the hot air outlet, and air outlet fan blades are fixedly installed outside the rotating shaft.

[0011] Preferably, a movable base is fixedly installed on the bottom of the box body, a door is hinged on one side of the box body, a peep window is arranged on the outside of the door, and a temperature display screen is fixedly installed on the front of the box body.

[0012] Preferably, a fixing bolt penetrates the outside of the embedded groove, and one end of the fixing bolt is movably connected to a front heat sink.

[0013] Preferably, a sliding groove is provided inside the box body, a sliding block is movably connected inside the sliding groove, and a test frame is fixedly mounted on one end of the sliding block.

[0014] Preferably, the test frame is movably connected to the box, and the sliding block is arranged in a "T"-shaped structure.

[0015] Preferably, the number of the air outlet fan blades is set to twelve, and the twelve air outlet fan blades are distributed at equal intervals on the hot air outlet.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] 1. The utility model is provided with a box body, a cold air machine, a cold air duct, a diffuser fan, a hot air machine, a hot air duct and a hot air outlet. When the device is used to perform a high and low temperature test on a test product, the cold air machine and the hot air machine have large power, and can quickly provide a large amount of hot air and cold air for the test product in the box body to perform a high and low temperature test. At the same time, when the hot air and cold air enter the inside of the box body, the diffuser fans on both sides can also blow the hot air and cold air inside the box body, so that the hot air and cold air are diffused into the entire box body, so that the device can achieve the purpose of rapid temperature change. In this way, the overall test range of the device is expanded under coordinated use, so that the device can meet the needs of different test products for high and low temperature testing. In addition, the angle of the air outlet fan blades in the hot air outlet can be adjusted by the rotating shaft, so that the hot air can be blown out more evenly, ensuring the accuracy of the test results of the test product when the high, low temperature and low pressure test box is tested internally;

[0018] 2. The utility model is provided with a box door, a peep window, a temperature display screen, a temperature sensor, a sliding groove, a sliding block and a test stand. When the device is used to perform high and low temperature tests on a test product, the test stand can be pulled out through the sliding groove and the sliding block to place the test product for testing, thus saving the time for placing the test product. At the same time, when performing rapid temperature changes, the temperature sensor will transmit the current temperature in the box to the temperature display screen in real time, making it convenient for external operators to control the temperature change to complete the test. During the high and low temperature test, the operator can observe the changes of the internal test product under high and low temperature environments through the peep window without opening the box door. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the box door structure of the utility model;

[0022] Figure 3This is a schematic diagram of the structure of the front heat sink of the utility model;

[0023] Figure 4 This is a schematic diagram of the test stand structure of the utility model;

[0024] Figure 5 It is a schematic diagram of the tuyere fan blade structure of the utility model.

[0025] Description of reference numerals:

[0026] 1. Box body; 2. Mobile base; 3. Box door; 4. Peep window; 5. Temperature display screen; 6. Embedded slot; 7. Cooling fan; 8. Cold air duct; 9. Air outlet; 10. Fixing bolts; 11. Front heat sink; 12. Inner slot; 13. Diffuser fan; 14. Temperature sensor; 15. Sliding slot; 16. Sliding block; 17. Test stand; 18. Hot air blower; 19. Hot air duct; 20. Hot air outlet; 21. Rotating shaft; 22. Air outlet fan blades. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] The utility model provides Figure 1-5 The high-low-temperature and low-pressure test box with rapid temperature change shown in the figure comprises a box body 1 for carrying a rapid temperature change component;

[0029] The embedded groove 6 is provided outside the box body 1 and is used to place the air cooler 7, and a cold air pipe 8 is fixedly installed at one end of the air cooler 7, and an air outlet 9 is fixedly connected to the other end of the cold air pipe 8;

[0030] The inner grooves 12 are provided on both sides of the box body 1 and are used to install the diffuser fan 13. A temperature sensor 14 is fixedly installed above the inner grooves 12.

[0031] The hot air blower 18 is arranged on the top of the box body 1, and is used to heat the inside of the box body 1; and a hot air pipe 19 is fixedly installed at one end of the hot air blower 18, and a hot air outlet 20 is fixedly connected to the other end of the hot air pipe 19, and a rotating shaft 21 is arranged inside the hot air outlet 20, and an air outlet fan blade 22 is fixedly installed outside the rotating shaft 21. The cold air blower 7 and the hot air blower 18 have high power, and can quickly provide a large amount of hot air and cold air for the test product of the box body 1 to carry out high and low temperature tests. At the same time, when the hot air and cold air enter the inside of the box body 1, the hot air and cold air inside the box body 1 can also be blown by the diffusion fans 13 on both sides, so that the hot air and cold air can be diffused into the entire box body 1.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a movable base 2 is fixedly installed at the bottom of the box body 1, a box door 3 is hinged on one side of the box body 1, a peep window 4 is arranged on the outside of the box door 3, a temperature display screen 5 is fixedly installed in front of the box body 1, and a temperature sensor 14 will transmit the current temperature to the temperature display screen 5 in real time in the box body 1, so as to facilitate external operators to control the temperature change to complete the test, a fixing bolt 10 passes through the outside of the embedded groove 6, and one end of the fixing bolt 10 is movably connected to a front heat sink 11, and the front heat sink 11 can dissipate heat for the working air cooler 7 to ensure the normal operation of the air cooler 7, a sliding groove 15 is opened inside the box body 1, and a sliding block 16 is movably connected inside the sliding groove 15, and a test frame 17 is fixedly installed on one end of the sliding block 16, and the test frame 17 can be drawn out through the sliding groove 15 and the sliding block 16 to place the test product to be tested, thereby saving the time for placing the test product.

[0033] like Figure 1 , Figure 4 and Figure 5 As shown, the test frame 17 is movably connected to the box body 1, and the sliding block 16 is set in a "T" shape. The overall structure of the test frame 17 is simple and easy to operate. If a fault occurs, it is also convenient for maintenance personnel to replace it in time. The number of air outlet fan blades 22 is set to twelve, and the twelve air outlet fan blades 22 are evenly distributed on the hot air outlet 20. The angle of the air outlet fan blades 22 in the hot air outlet 20 can be adjusted by the rotating shaft 21 to make the hot air blow out more evenly.

[0034] The practical working principle of the present invention is as follows: first, connect the external power supply to open the box door 3, pull out the test frame 17 through the sliding slot 15 and the sliding block 16, take out the test product that needs to be tested for high and low temperatures and place it on the test frame 17, and then adjust the angle of the air outlet fan blades 22 in the hot air outlet 20 through the rotating shaft 21 to make the hot air blown out more evenly when heating up, then you can close the box door 3 and turn on the switch of the cold air fan 7, turn on the switch of the hot air fan 18, and according to the test steps of the current test product, inject cold air or hot air into the box body 1 in turn for rapid temperature change. The cold air fan 7 and the hot air fan 18 have high power, which can quickly provide a large amount of hot air and cold air for the test product in the box body 1 for high and low temperature tests, and then when the hot air and cold air enter the inside of the box 1, they can also blow the box through the diffuser fans 13 on both sides. The hot air and cold air inside the body 1 are allowed to diffuse into the entire box body 1. Then, when the temperature changes rapidly, the temperature sensor 14 will transmit the current temperature in real time to the temperature display screen 5 inside the box body 1, so as to facilitate the external operator to control the temperature change to complete the test. Subsequently, the operator can observe the changes of the internal test products under high and low temperature environments through the peep window 4 without opening the box door 3. After the test is completed, take out the test products and record the test data. Finally, after completing the high and low temperature testing of all test products according to the above operations, turn off the switch of the cold air fan 7, turn off the switch of the diffuser fan 13, turn off the switch of the hot air fan 18, and cut off the external power supply if it is not used for a long time. In this way, the use process of the high and low temperature and low pressure test box with rapid temperature change is completed.

[0035] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-low-temperature and low-pressure test chamber with rapid temperature change, characterized in that: include A box (1) is used to carry the rapid temperature change component; The embedded groove (6) is provided outside the box body (1) and is used to place a cooling fan (7), and a cooling air pipe (8) is fixedly installed at one end of the cooling fan (7), and an air outlet (9) is fixedly connected to the other end of the cooling air pipe (8); The inner grooves (12) are provided on both sides of the interior of the box body (1) and are used to install the diffuser fan (13), and a temperature sensor (14) is fixedly installed above the inner grooves (12); A hot air blower (18) is arranged on the top of the box (1) and is used to heat the interior of the box (1); a hot air pipe (19) is fixedly installed at one end of the hot air blower (18); the other end of the hot air pipe (19) is fixedly connected to a hot air outlet (20); a rotating shaft (21) is arranged inside the hot air outlet (20); and an air outlet fan blade (22) is fixedly installed outside the rotating shaft (21).

2. A high-low-temperature and low-pressure test chamber with rapid temperature change according to claim 1, characterized in that: A movable base (2) is fixedly mounted on the bottom of the box (1), a door (3) is hingedly mounted on one side of the box (1), a peep window (4) is arranged outside the door (3), and a temperature display screen (5) is fixedly mounted in front of the box (1).

3. The high-low-temperature and low-pressure test chamber with rapid temperature change according to claim 1, characterized in that: A fixing bolt (10) passes through the outside of the embedded groove (6), and one end of the fixing bolt (10) is movably connected to a front heat sink (11).

4. The high-low-temperature and low-pressure test chamber with rapid temperature change according to claim 1, characterized in that: A sliding groove (15) is provided inside the box body (1), a sliding block (16) is movably connected inside the sliding groove (15), and a test frame (17) is fixedly mounted on one end of the sliding block (16).

5. The high-low-temperature and low-pressure test chamber with rapid temperature change according to claim 4, characterized in that: The test frame (17) is movably connected to the box body (1), and the sliding block (16) is arranged in a "T"-shaped structure.

6. The high-low-temperature and low-pressure test chamber with rapid temperature change according to claim 1, characterized in that: The number of the air outlet fan blades (22) is set to twelve, and the twelve air outlet fan blades (22) are distributed at equal intervals on the hot air outlet (20).

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