Temperature and humidity alternating test system and test method

Abstract

The invention discloses a temperature and humidity alternating test system and a test method, the temperature and humidity alternating test system comprises a test box, two partition plates are arranged in the test box, a feeding cavity is formed between the two partition plates, and test cavities are formed in the two sides of the feeding cavity; a lead screw is rotatably arranged in the test box, a motor is arranged outside the test box, an output shaft of the motor is coaxially connected with the lead screw, a sliding plate is arranged in the feeding cavity, a lead screw nut is arranged on the sliding plate, the lead screw nut is connected to the lead screw in a sleeving mode, a groove body is formed in the partition plate, and the lead screw nut is arranged in the groove body. A sealing door is arranged on the tank body, so that the sliding plate can enter the test cavity from the tank body; a heating tube is arranged in the test cavity, a temperature controller is connected to the heating tube, and a humidifier and a refrigeration compressor are further arranged in the test cavity. The problem that an existing temperature and humidity test box cannot detect the influence of temperature and humidity sudden changes on materials is solved.

Description

Technical Field

[0001] The invention relates to humidity and temperature testing equipment, in particular to a temperature and humidity alternation testing system and a testing method. Background Art

[0002] A temperature and humidity test chamber is a device used to simulate experimental scenes under different temperature and humidity conditions to test the performance of various materials, products or equipment; it is widely used in electronics, aerospace, automobiles, food, chemicals and other fields. For example, the Chinese patent with patent number CN201910648257.0 provides a temperature and humidity control box for a constant temperature and humidity test chamber, including a base, a box body is fixedly installed on the top of the base, a movable door is hinged on the top of the front of the box body, a glass observation window is fixedly installed inside the front of the movable door, a handle is fixedly installed on the right side of the glass observation window on the front of the movable door, a control end is fixedly installed on the right side of the movable door on the front of the box body, a placement opening is opened on the front of the box body, and long openings are opened on the front of the box body above and below the placement opening, and the inner part of the placement opening is movably sleeved with an outer frame, and the outer The top and bottom of the frame are fixedly installed with a connection block located inside the long mouth, and the top and bottom of the inner cavity of the outer frame are fixedly installed with fixed blocks on both sides. The number of the fixed blocks is four, and the other ends of the four fixed blocks are fixedly installed with inner blocks. The dust-proof heat dissipation net body located outside the inner block is fixedly installed inside the outer frame. The front of the box body is fixedly installed with round blocks located above and below the connection blocks. The outer surface of the round block is movably sleeved with a clamping block. The back of the clamping block is movably connected with the connection block and the front of the box body respectively. The outer surface of the round block is threadedly sleeved with a first fastening nut located on the left side of the clamping block, and the right side of the first fastening nut is movably connected with the left side of the clamping block. Such as the test box in the above-mentioned prior art, it detects the performance of the workpiece under different temperature and humidity environments by changing the temperature and humidity in a box. The workpiece is always in the box, and the rise and fall of the internal temperature and humidity is a gradual process. It can only detect the influence of the gradual change of temperature and humidity on the material, and cannot detect the influence of the sudden change of temperature and humidity on the material. Summary of the invention

[0003] The purpose of the present invention is to provide a temperature and humidity alternation test system and test method, which solves the problem that the existing temperature and humidity test box cannot detect the influence of sudden changes of temperature and humidity on materials.

[0004] In order to achieve the above object, the present invention provides a temperature and humidity alternation test system, the temperature and humidity alternation test system comprising a test box, two partitions are arranged in the test box, a loading cavity is formed between the two partitions, and test cavities are formed on both sides of the loading cavity;

[0005] A screw lever is rotatably arranged in the test box, a motor is arranged outside the test box, the output shaft of the motor is coaxially connected with the screw lever, a slide plate is arranged in the feeding chamber, a screw nut is arranged on the slide plate, the screw nut is sleeved on the screw lever, a slot body is arranged on the partition plate, and a closed door is arranged on the slot body, so that the slide plate can enter the test chamber from the slot body;

[0006] A heating tube is arranged in the test chamber, a temperature controller is connected to the heating tube, and a humidifier and a refrigeration compressor are also arranged in the test chamber.

[0007] Preferably, a temperature sensor electrically connected to the temperature controller is provided in the test chamber; when the temperature in the test chamber is higher than a preset threshold, the refrigeration compressor is turned on, and when the temperature in the test chamber is lower than the preset threshold, the heating tube is turned on.

[0008] Preferably, a humidity sensor electrically connected to the humidifier is provided in the test chamber; when the humidity in the test chamber is lower than a preset threshold, the humidifier is turned on, and when the humidity in the test chamber is higher than the preset threshold, the humidifier is stopped.

[0009] Preferably, slide bars are provided in the test box, and the slide plate is slidably located between two of the slide bars.

[0010] Preferably, clamping assemblies are respectively provided on both sides of the slide plate; the clamping assemblies include a sliding column slidably provided on the slide plate, a pressing plate connected to the sliding column, and a spring sleeved on the sliding column.

[0011] Preferably, an air circulation machine is arranged in the feeding chamber; a first cover plate is arranged at the opening of the test chamber, and a second cover plate is hinged at the opening of the feeding chamber.

[0012] Preferably, a first cylinder is provided on the side of the partition, the piston rod of the first cylinder is connected to the closed door, the lower end of the closed door is formed with an avoidance groove cooperating with the slide bar, and the middle part of the lower end of the closed door is formed with a semicircular avoidance groove cooperating with the wire lever.

[0013] Preferably, a bidirectional cylinder is provided in the middle of the closed door, and a sealing block is connected to the piston rod of the bidirectional cylinder so that the sealing block can shield the lower end of the semicircular avoidance groove.

[0014] Preferably, sealing strips are provided on the avoidance groove, the semicircular avoidance groove and the sealing block.

[0015] The present invention also provides a test method, which is performed by the temperature and humidity alternation test system, and comprises:

[0016] 1) Place the workpiece on the slide and fasten it with the clamping assembly;

[0017] 2) Adjust the test chamber on one side to a preset first temperature and humidity through a heating tube, a humidifier and a refrigeration compressor;

[0018] 3) Use the bidirectional cylinder to drive the sealing block to move horizontally, and use the first cylinder to drive the closed door to move vertically to open the tank;

[0019] 4) Use the wire lever to move the slide to the test chamber on one side. After the test, return it to the loading chamber. Use the air circulation machine to cool the workpiece to room temperature, and then move it to the test chamber on the other side. The test chamber on the other side is adjusted to the preset second temperature and humidity in advance.

[0020] Beneficial effects: The present invention provides a temperature and humidity alternation test system, which comprises a test box, wherein two partitions are arranged in the test box, a loading chamber is formed between the two partitions, and test chambers are formed on both sides of the loading chamber; a wire lever is rotatably arranged in the test box, a motor is arranged on the outside of the test box, and the output shaft of the motor is coaxially connected with the wire lever, a slide plate is arranged in the loading chamber, a lead screw nut is arranged on the slide plate, and the lead screw nut is sleeved on the lead screw lever, a trough body is arranged on the partition, and a closed door is arranged on the trough body, so that the slide plate can enter the test chamber from the trough body; a heating tube is arranged in the test chamber, a temperature controller is connected to the heating tube, and a humidifier and a refrigeration compressor are also arranged in the test chamber. During operation, the workpiece is placed on the slide and fastened with a clamping assembly; the test chamber on one side is adjusted to a preset first temperature and humidity through a heating tube, a humidifier and a refrigeration compressor; the sealing block is driven to move horizontally by a two-way cylinder, and the closed door is driven to move vertically by a first cylinder to open the trough body; the slide is moved to the test chamber on one side by a wire lever, and after the test is completed, it is returned to the loading chamber, and the workpiece is cooled to room temperature by an air circulation machine, and then moved to the test chamber on the other side, and the test chamber on the other side is adjusted to a preset second temperature and humidity in advance; the test system provided by the present invention can adjust the temperature and humidity of another test chamber to preset values ​​when conducting a test in one test chamber, and after completing a test in one test chamber, it can be moved to the loading chamber, and the workpiece can be cooled to room temperature, and then pushed into another test chamber, and then the temperature and humidity of the other test chamber can be adjusted, so as to effectively detect the environmental sudden change adaptability of the workpiece from room temperature to different temperature and humidity environments.

[0021] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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:

[0023] Figure 1 This is a first-view structural diagram of the temperature and humidity alternating test system provided by the present invention;

[0024] Figure 2 This is a second perspective structural diagram of the temperature and humidity alternating test system provided by the present invention;

[0025] Figure 3 It is a third-view structural diagram of the temperature and humidity alternating test system provided by the present invention;

[0026] Figure 4 yes Figure 3 Enlarged view of part A.

[0027] Description of Reference Numerals

[0028] 1-test box; 2-test chamber; 3-feeding chamber; 4-partition; 5-motor; 6-wire lever; 7-refrigeration compressor; 8-humidifier; 9-heating tube; 10-temperature controller; 11-slide bar; 12-slide plate; 13-clamping assembly; 14-air circulation machine; 15-sealing block; 16-second cover plate; 17-first cover plate; 18-closed door; 19-first cylinder; 20-bidirectional cylinder. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0030] like Figure 1-4As shown: The present invention provides a temperature and humidity alternation test system, which includes a test box 1, wherein two partitions 4 are arranged in the test box 1, a loading chamber 3 is formed between the two partitions 4, and test chambers 2 are formed on both sides of the loading chamber 3; a wire lever 6 is rotatably arranged in the test box 1, a motor 5 is arranged outside the test box 1, and the output shaft of the motor 5 is coaxially connected with the wire lever 6; a slide plate 12 is arranged in the loading chamber 3, a lead screw nut is arranged on the slide plate 12, and the lead screw nut is sleeved on the lead screw 6; a trough body is arranged on the partition 4, and a closed door 18 is arranged on the trough body, so that the slide plate 12 can enter the test chamber 2 from the trough body; a heating tube 9 is arranged in the test chamber 2, and a temperature controller 10 is connected to the heating tube 9, and a humidifier 8 and a refrigeration compressor 7 are also arranged in the test chamber 2. During operation, the workpiece is placed on the slide and fastened with a clamping assembly; the test chamber on one side is adjusted to a preset first temperature and humidity through a heating tube, a humidifier and a refrigeration compressor; the sealing block is driven to move horizontally by a two-way cylinder, and the closed door is driven to move vertically by a first cylinder to open the trough body; the slide is moved to the test chamber on one side by a wire lever, and after the test is completed, it is returned to the loading chamber, and the workpiece is cooled to room temperature by an air circulation machine, and then moved to the test chamber on the other side, and the test chamber on the other side is adjusted to a preset second temperature and humidity in advance; the test system provided by the present invention can adjust the temperature and humidity of another test chamber to preset values ​​when conducting a test in one test chamber, and after completing a test in one test chamber, it can be moved to the loading chamber, and the workpiece can be cooled to room temperature, and then pushed into another test chamber, and then the temperature and humidity of the other test chamber can be adjusted, so as to effectively detect the environmental sudden change adaptability of the workpiece from room temperature to different temperature and humidity environments.

[0031] In a preferred embodiment of the present invention, in order to facilitate the control of the temperature in the test chamber, a temperature sensor electrically connected to the temperature controller 10 is provided in the test chamber 2; when the temperature in the test chamber 2 is higher than a preset threshold, the refrigeration compressor 7 is turned on, and when the temperature in the test chamber 2 is lower than the preset threshold, the heating tube 9 is turned on.

[0032] In a preferred embodiment of the present invention, in order to facilitate the control of the humidity in the test chamber, a humidity sensor electrically connected to the humidifier 8 is provided in the test chamber 2; when the humidity in the test chamber 2 is lower than a preset threshold, the humidifier 8 is turned on, and when the humidity in the test chamber 2 is higher than the preset threshold, the humidifier 8 is stopped.

[0033] In a preferred embodiment of the present invention, in order to limit the displacement of the slide plate, a slide bar 11 is provided in the test box 1 , and the slide plate 12 is slidably located between two of the slide bars 11 .

[0034] In a preferred embodiment of the present invention, in order to be able to fasten the workpiece on the slide, clamping assemblies 13 are respectively provided on both sides of the slide 12; the clamping assembly 13 includes a sliding column slidably arranged on the slide 12, a pressure plate connected to the sliding column, and a spring sleeved on the sliding column.

[0035] In a preferred embodiment of the present invention, in order to cool the workpiece to room temperature in time, an air circulation machine 14 is provided in the loading chamber 3; a first cover plate 17 is provided at the opening of the test chamber 2, and a second cover plate 16 is hinged at the opening of the loading chamber 3.

[0036] In a preferred embodiment of the present invention, in order to effectively shield the groove body on the partition, improve its sealing performance, and ensure the stability of the temperature and humidity inside it, a first cylinder 19 is arranged on the side of the partition 4, and the piston rod of the first cylinder 19 is connected to the closed door 18, and the lower end of the closed door 18 is formed with an avoidance groove cooperating with the slide bar 11, and the middle part of the lower end of the closed door 18 is formed with a semicircular avoidance groove cooperating with the wire lever 6.

[0037] In a preferred embodiment of the present invention, in order to further improve the sealing performance of the closed door and ensure the stability of the internal temperature and humidity, a two-way cylinder 20 is provided in the middle of the closed door 18, and the piston rod of the two-way cylinder 20 is connected to a sealing block 15, so that the sealing block 15 can cover the lower end of the semicircular avoidance groove.

[0038] In a preferred embodiment of the present invention, in order to further improve the sealing performance of the closed door and ensure the stability of the internal temperature and humidity, sealing strips are provided on the avoidance groove, the semicircular avoidance groove and the sealing block 15.

[0039] The present invention further provides a test method, which is performed by the temperature and humidity alternation test system according to claim 9, comprising:

[0040] 1. Place the workpiece on the slide 12 and fasten it using the clamping assembly 13;

[0041] 2. The test chamber 2 on one side is adjusted to a preset first temperature and humidity through the heating tube 9, the humidifier 8 and the refrigeration compressor 7;

[0042] 3. Use the bidirectional cylinder 20 to drive the sealing block 15 to move horizontally, and use the first cylinder 19 to drive the closing door 18 to move vertically to open the tank;

[0043] 4. Use the wire lever 6 to move the slide plate 12 to the test chamber 2 on one side. After the test, return it to the loading chamber 3. Use the air circulation machine 14 to cool the workpiece to room temperature, and then move it to the test chamber 2 on the other side. The test chamber 2 on the other side is adjusted to the preset second temperature and humidity in advance.

[0044] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0045] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0046] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A temperature and humidity alternating test system, characterized in that: The temperature and humidity alternation test system comprises a test box (1), wherein two partitions (4) are arranged in the test box (1), a loading cavity (3) is formed between the two partitions (4), and test cavities (2) are formed on both sides of the loading cavity (3); A screw lever (6) is rotatably arranged in the test box (1), a motor (5) is arranged outside the test box (1), the output shaft of the motor (5) is coaxially connected with the screw lever (6), a slide plate (12) is arranged in the feeding chamber (3), a screw nut is arranged on the slide plate (12), the screw nut is sleeved on the screw lever (6), a groove body is arranged on the partition plate (4), and a closed door (18) is arranged on the groove body, so that the slide plate (12) can enter the test chamber (2) from the groove body; A heating tube (9) is arranged in the test chamber (2), and a temperature controller (10) is connected to the heating tube (9). A humidifier (8) and a refrigeration compressor (7) are also arranged in the test chamber (2).

2. The temperature and humidity alternation test system according to claim 1, characterized in that: A temperature sensor electrically connected to the temperature controller (10) is arranged in the test chamber (2); when the temperature in the test chamber (2) is higher than a preset threshold, the refrigeration compressor (7) is turned on, and when the temperature in the test chamber (2) is lower than the preset threshold, the heating tube (9) is turned on.

3. The temperature and humidity alternation test system according to claim 2, characterized in that: A humidity sensor electrically connected to the humidifier (8) is arranged in the test chamber (2); when the humidity in the test chamber (2) is lower than a preset threshold, the humidifier (8) is turned on, and when the humidity in the test chamber (2) is higher than the preset threshold, the humidifier (8) is stopped.

4. The temperature and humidity alternation test system according to claim 3, characterized in that: Slide bars (11) are arranged in the test box (1), and the slide plate (12) is slidably located between two of the slide bars (11).

5. The temperature and humidity alternation test system according to claim 4, characterized in that: Clamping assemblies (13) are respectively arranged on both sides of the slide plate (12); the clamping assembly (13) comprises a sliding column slidably arranged on the slide plate (12), a pressure plate connected to the sliding column, and a spring sleeved on the sliding column.

6. The temperature and humidity alternation test system according to claim 5, characterized in that: An air circulation machine (14) is arranged in the feeding chamber (3); a first cover plate (17) is arranged at the opening of the test chamber (2); and a second cover plate (16) is hingedly connected to the opening of the feeding chamber (3).

7. The temperature and humidity alternation test system according to claim 6, characterized in that: A first cylinder (19) is arranged on the side of the partition (4), and a piston rod of the first cylinder (19) is connected to the closed door (18). A avoidance groove cooperating with the slide bar (11) is formed at the lower end of the closed door (18), and a semicircular avoidance groove cooperating with the wire lever (6) is formed in the middle of the lower end of the closed door (18).

8. The temperature and humidity alternation test system according to claim 7, characterized in that: A bidirectional cylinder (20) is arranged in the middle of the closed door (18), and a piston rod of the bidirectional cylinder (20) is connected to a sealing block (15), so that the sealing block (15) can cover the lower end of the semicircular avoidance groove.

9. The temperature and humidity alternation test system according to claim 8, characterized in that: The avoidance groove, the semicircular avoidance groove and the sealing block (15) are all provided with sealing strips.

10. A test method, characterized in that: The test method is carried out by the temperature and humidity alternation test system according to claim 9, comprising: 1) placing the workpiece on the slide plate (12) and fastening it with a clamping assembly (13); 2) adjusting the test chamber (2) on one side to a preset first temperature and humidity through the heating tube (9), the humidifier (8) and the refrigeration compressor (7); 3) Using the bidirectional cylinder (20) to drive the sealing block (15) to move horizontally, and using the first cylinder (19) to drive the closing door (18) to move vertically, so as to open the tank body; 4) Using the wire lever (6), the slide plate (12) is moved to the test chamber (2) on one side. After the test is completed, the slide plate (12) is returned to the loading chamber (3). The workpiece is cooled to room temperature by the air circulation machine (14). The workpiece is then moved to the test chamber (2) on the other side. The test chamber (2) on the other side is adjusted in advance to a preset second temperature and humidity.

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