High and low temperature alternating damp heat test box

Abstract

The utility model discloses a high and low temperature alternating damp heat test box, which relates to the technical field of high and low temperature test boxes and comprises a box body and a box cover. A heating cavity is formed in the left side of the interior of the box body, a refrigerating cavity is formed in the right side of the interior of the box body, a partition plate is fixed to the joint of the heating cavity and the refrigerating cavity, a through groove is formed in the surface of the partition plate, a heating pipe is installed on the rear side face of the interior of the heating cavity, and a refrigerator is installed on the rear side face of the interior of the refrigerating cavity; according to the high and low temperature alternating humidity and heat test box, a linear motor is adopted to drive a to-be-detected piece on the object placing net to be converted in the heating cavity and the refrigerating cavity, so that the to-be-detected piece can be heated and cooled, and the temperature and humidity of the to-be-detected piece can be greatly improved. Therefore, the influence of the to-be-detected piece under the alternating of two different temperatures can be detected, and the position of the object placing net can be adjusted according to the specification of the to-be-detected piece.

Description

Technical Field

[0001] This utility model relates to the technical field of high and low temperature test chambers, specifically a high and low temperature alternating damp heat 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 in electronic and electrical products, automobiles, motorcycles, aerospace, shipbuilding, weaponry, universities, and research institutions under cyclical high and low temperature conditions. The high and low temperature test chambers simulate the temperature variation patterns in the atmospheric environment. They are primarily designed for the adaptability testing of electrical and electronic products, their components, and other materials under combined high and low temperature environments during transportation and use, and are used in product design, improvement, evaluation, and inspection.

[0003] Currently used high and low temperature test chambers mostly conduct high and low temperature tests in a single chamber. Since temperature changes take time, accurate testing cannot be performed during the alternating high and low temperature process, and it is inconvenient to place test pieces of different heights. Therefore, we propose a high and low temperature alternating damp heat test chamber. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a high and low temperature alternating damp heat test chamber. The linear motor can drive the test piece on the test net to change between the heating chamber and the cooling chamber. This can detect the effect of the test piece under two different temperature alternations. In addition, the position of the test net can be adjusted according to the specifications of the test piece, thereby improving the practicality of the device and effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high and low temperature alternating damp heat test chamber, comprising a chamber body and a chamber cover;

[0006] The enclosure has a heating chamber on the left side and a cooling chamber on the right side. A partition is fixed at the connection between the heating and cooling chambers, and a through groove is formed on the surface of the partition. A heating tube is installed on the rear side of the heating chamber, and a cooler is installed on the rear side of the cooling chamber. The heat-dissipating end of the cooler is located on the rear side of the enclosure. Both the heating and cooling chambers have sliding grooves inside. The enclosure has two covers, each slidingly mounted with a corresponding sliding groove. Both the heating and cooling chambers have interconnected adjustment grooves on their bottom surfaces. A temperature controller is installed on the left end of the front side of the enclosure, and an adjustment unit is provided inside the enclosure.

[0007] It also includes a controller, which is located on the front side of the housing. The input ends of the heating tube and the cooler are electrically connected to the output end of the thermostat. The input end of the thermostat is electrically connected to the output end of the controller. The input end of the controller is electrically connected to the output end of an external power source.

[0008] Activating the thermostat allows the heating element and cooler to maintain a suitable temperature inside the heating and cooling chambers, enabling high-temperature and low-temperature testing of the test piece.

[0009] Furthermore, the adjustment unit includes a frame, a net, a linear motor, a net groove, and anti-detachment rods. The linear motor is installed inside the adjustment groove on the bottom surface of the heating chamber and the cooling chamber. The frame is fixed to the top surface of the linear motor's moving part. The frame has evenly spaced net grooves inside, and the net is slidably installed inside the net grooves. There are two anti-detachment rods, which are rotatably installed on the front side of the top surface of the frame. The input end of the linear motor is electrically connected to the output end of the controller. Rotating the anti-detachment rods inserts the net into the net groove, which facilitates the placement of test pieces of different specifications. Starting the linear motor allows for rapid switching between the heating chamber and the cooling chamber, thus enabling alternating tests under high and low temperature conditions.

[0010] Furthermore, the adjustment unit also includes a sealing rubber strip, a main motor, a plate groove, and an L-shaped sealing plate. The plate groove is formed on the top surface inside the heating chamber and the cooling chamber. The main motor is fixed to the rear side of the housing. The output shaft of the main motor is fixedly connected to the rear end of the L-shaped sealing plate. The L-shaped sealing plate engages with the inside of the plate groove. Sealing rubber strips are adhered to both the front and rear sides of the L-shaped sealing plate. The input end of the main motor is electrically connected to the output end of the controller. Starting the main motor drives the L-shaped sealing plate to rotate. This solves the problem of slow temperature change in a single-chamber setting, while the sealing rubber strip prevents air leakage due to poor sealing between the heating chamber and the cooling chamber.

[0011] Furthermore, it also includes a placement slot, a humidifier, and spray nozzles. The placement slot is located at the bottom of the front side of the chamber, and the humidifier is placed inside the placement slot. There are two spray nozzles, which are placed in the grooves on the bottom surface of the heating chamber and the cooling chamber, respectively. The two air outlets of the humidifier are connected to the air inlets of the corresponding two spray nozzles. The input end of the humidifier is electrically connected to the output end of the controller. When the humidifier is activated, moisture is sprayed out through the spray nozzles to ensure the humidity inside the heating chamber and the cooling chamber, thereby improving the accuracy of the test.

[0012] Furthermore, it also includes a motor and a lead screw. There are two motors, which are fixed on the left and right sides of the top surface of the box respectively. The lead screw is rotatably installed inside the slide groove. The top of the lead screw is connected to the output shaft of the motor. The lead screw is threadedly connected to the screw hole on the surface of the box cover. The input end of the motor is electrically connected to the output end of the controller. The motor drives the lead screw to rotate, thereby driving the box cover to rise and fall, so as to facilitate personnel to take it out.

[0013] Furthermore, it also includes temperature and humidity sensors. There are two temperature and humidity sensors, which are fixed on the top surface of the housing and are arranged in a left-right correspondence. The output of the temperature and humidity sensors is electrically connected to the input of the controller. The temperature and humidity sensors can monitor the temperature and humidity inside the heating chamber and the cooling chamber at the same time.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This high and low temperature alternating damp heat test chamber has the following advantages:

[0015] 1. Insert the placement net into the mesh slot by rotating the anti-detachment rod. This makes it easy to place test pieces of different specifications. Starting the linear motor can quickly switch between the heating chamber and the cooling chamber, thus conducting alternating tests under high and low temperature conditions.

[0016] 2. By starting the main motor to drive the L-shaped sealing plate to rotate, the problem of slow temperature change in single-chamber settings can be solved, while the sealing rubber strip can prevent air leakage due to poor sealing between the heating chamber and the cooling chamber.

[0017] 3. By activating the humidifier, moisture is sprayed out through the nozzle to ensure the humidity inside the heating and cooling chambers. The temperature and humidity sensors can monitor the temperature and humidity inside the heating and cooling chambers simultaneously to improve the accuracy of the test. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the adjustment unit structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the box body of this utility model.

[0021] In the diagram: 1. Cabinet, 2. Adjustment unit, 21. Frame, 22. Storage net, 23. Linear motor, 24. Net groove, 25. Anti-detachment rod, 26. Sealing rubber strip, 27. Main motor, 28. Plate groove, 29. L-shaped sealing plate, 3. Heating chamber, 4. Cooling chamber, 5. Partition, 6. Heating tube, 7. Refrigerator, 8. Slide, 9. Cabinet lid, 10. Placement slot, 11. Humidifier, 12. Spray nozzle, 13. Motor, 14. Lead screw, 15. Temperature and humidity sensor, 16. Temperature controller, 17. Controller. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-3 This embodiment provides a technical solution: a high and low temperature alternating damp heat test chamber, including a chamber body 1 and a chamber cover 9;

[0024] Box 1: A heating chamber 3 is located on the left side of the interior, and a cooling chamber 4 is located on the right side of the interior. A partition 5 is fixed at the connection between the heating chamber 3 and the cooling chamber 4. A through groove is formed on the surface of the partition 5. A heating tube 6 is installed on the rear side of the interior of the heating chamber 3, and a cooler 7 is installed on the rear side of the interior of the cooling chamber 4. The heat-dissipating end of the cooler 7 is located on the rear side of the box 1. Sliding grooves 8 are formed inside both the heating chamber 3 and the cooling chamber 4. There are two boxes with covers 9, which are slidably installed with corresponding sliding grooves 8. Connecting grooves are formed on the bottom surface of both the heating chamber 3 and the cooling chamber 4. The adjustment slots are provided, and a thermostat 16 is installed on the left end of the front side of the cabinet 1. The cabinet 1 has an adjustment unit 2 inside, which includes a frame 21, a storage net 22, a linear motor 23, a net groove 24, and anti-detachment rods 25. The linear motor 23 is installed inside the adjustment slots on the bottom surface of the heating chamber 3 and the cooling chamber 4. The frame 21 is fixed to the top surface of the linear motor 23's actuator. The net grooves 24 are evenly distributed inside the frame 21, and the storage net 22 is slidably installed inside the net grooves 24. There are two anti-detachment rods 25, which are rotatably installed on the frame with corresponding left and right sides. On the front side of the top surface of unit 21, the input end of linear motor 23 is electrically connected to the output end of controller 17. Rotating anti-detachment rod 25 inserts the placement net 22 into the mesh groove 24, which facilitates the placement of test pieces of different specifications. Starting linear motor 23 can quickly switch between the heating chamber 3 and the cooling chamber 4, thereby conducting alternating tests under high and low temperature conditions. Adjustment unit 2 also includes sealing rubber strip 26, main motor 27, plate groove 28 and L-shaped sealing plate 29. Plate groove 28 is opened on the top surface inside the heating chamber 3 and the cooling chamber 4. 27 is fixed to the rear side of the housing 1. The output shaft of the main motor 27 is fixedly connected to the rear end of the L-shaped sealing plate 29. The L-shaped sealing plate 29 is engaged with the inside of the plate groove 28. Sealing rubber strips 26 are glued to both the front and rear sides of the L-shaped sealing plate 29. The input end of the main motor 27 is electrically connected to the output end of the controller 17. Starting the main motor 27 drives the L-shaped sealing plate 29 to rotate. This can solve the problem of slow temperature change in single-cavity settings, while the sealing rubber strips 26 can prevent poor sealing and air leakage between the heating cavity 3 and the cooling cavity 4.

[0025] The system also includes a controller 17, located on the front side of the housing 1. The input terminals of the heating tube 6 and the cooler 7 are electrically connected to the output terminal of the temperature controller 16, which in turn is electrically connected to the output terminal of the controller 17. The input terminal of the controller 17 is electrically connected to the output terminal of an external power supply. Activating the temperature controller 16 allows the heating tube 6 and the cooler 7 to maintain a suitable temperature inside the heating chamber 3 and the cooling chamber 4, enabling high-temperature and low-temperature testing of the test piece. The system also includes a placement slot 10, a humidifier 11, and spray nozzles 12. The placement slot 10 is located at the bottom of the front side of the housing 1, and the humidifier 11 is placed inside it. There are two spray nozzles 12, each placed in a groove on the bottom surface of the heating chamber 3 and the cooling chamber 4, respectively. The two air outlets of the humidifier 11 are connected to the air inlets of the corresponding two spray nozzles 12. The input terminal of the humidifier 11 is electrically connected to the output terminal of the controller 17. The humidifier 11 is activated to spray moisture through the nozzle 12 to ensure the humidity inside the heating chamber 3 and the cooling chamber 4, thereby improving the accuracy of the test. It also includes a motor 13 and a lead screw 14. There are two motors 13, which are fixed on the left and right sides of the top surface of the chamber 1 respectively. The lead screw 14 is rotatably installed inside the slide groove 8. The top of the lead screw 14 is connected to the output shaft of the motor 13. The lead screw 14 is threadedly connected to the screw hole on the surface of the chamber cover 9. The input end of the motor 13 is electrically connected to the output end of the controller 17. The motor 13 drives the lead screw 14 to rotate, thereby driving the chamber cover 9 to rise and fall, so as to facilitate personnel to take it out. It also includes a temperature and humidity sensor 15. There are two temperature and humidity sensors 15, which are fixed on the top surface of the chamber 1 respectively. The output end of the temperature and humidity sensor 15 is electrically connected to the input end of the controller 17. The temperature and humidity sensors 15 can monitor the temperature and humidity inside the heating chamber 3 and the cooling chamber 4 at the same time.

[0026] The working principle of the high and low temperature alternating damp heat test chamber provided by this utility model is as follows: First, rotate the anti-detachment rod 25 to insert the placement net 22 into the mesh groove 24, which facilitates the placement of test pieces of different specifications. Start the motor 13 to drive the lead screw 14 to rotate and fix the chamber cover 9. Start the temperature controller 16 to keep the heating tube 6 and the cooler 7 at a suitable temperature inside the heating chamber 3 and the cooling chamber 4. At the same time, start the humidifier 11 to spray moisture through the nozzle 12 to ensure the humidity inside the heating chamber 3 and the cooling chamber 4. The temperature and humidity sensor 15 can monitor the temperature and humidity inside the heating chamber 3 and the cooling chamber 4 at the same time to improve the accuracy of the test. When high and low temperature alternation is required, start the main motor 27 to drive the L-shaped sealing plate 29 to rotate. At the same time, start the linear motor 23 to quickly switch between the heating chamber 3 and the cooling chamber 4, so as to carry out alternating tests under high and low temperature conditions. The sealing rubber strip 26 can prevent the problem of poor sealing and air leakage between the heating chamber 3 and the cooling chamber 4.

[0027] It is worth noting that the controller 17 disclosed in the above embodiments is model KV-8000, while the cooler 7 can be freely configured according to the actual application scenario. It is recommended to use a semiconductor cooler of model HS-TEC200. The temperature and humidity sensor 15 can be a temperature and humidity sensor of model AE712-Y-TL, and the temperature controller 16 can be a temperature controller of model OHR-E300. The controller 17 controls the linear motor 23, main motor 27, motor 13, heating tube 6, cooler 7, humidifier 11, temperature and humidity sensor 15, and temperature controller 16 using methods commonly used in the prior art.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high and low temperature alternating damp heat test chamber, characterized in that: Includes the box body (1) and the box lid (9); Box (1): A heating chamber (3) is provided on the left side inside the box (1), and a cooling chamber (4) is provided on the right side inside the box (1). A partition (5) is fixed at the connection between the heating chamber (3) and the cooling chamber (4). A through groove is provided on the surface of the partition (5). A heating tube (6) is installed on the rear side inside the heating chamber (3). A cooler (7) is installed on the rear side inside the cooling chamber (4). The heat-releasing end of the cooler (7) is located on the rear side of the box (1). A sliding groove (8) is provided inside both the heating chamber (3) and the cooling chamber (4). There are two boxes (9) and they are slidably installed with the corresponding sliding grooves (8). An adjustment groove is provided on the bottom surface inside both the heating chamber (3) and the cooling chamber (4). A thermostat (16) is installed on the left end of the front side of the box (1). An adjustment unit (2) is provided inside the box (1). The device also includes a controller (17), which is located on the front side of the housing (1). The input ends of the heating tube (6) and the cooler (7) are electrically connected to the output end of the thermostat (16). The input end of the thermostat (16) is electrically connected to the output end of the controller (17). The input end of the controller (17) is electrically connected to the output end of the external power supply.

2. The high and low temperature alternating damp heat test chamber according to claim 1, characterized in that: The adjustment unit (2) includes a frame (21), a storage net (22), a linear motor (23), a net groove (24), and an anti-detachment rod (25). The linear motor (23) is installed inside the adjustment groove on the bottom surface of the heating chamber (3) and the cooling chamber (4). The frame (21) is fixed on the top surface of the moving part of the linear motor (23). The net groove (24) is evenly opened inside the frame (21). The storage net (22) is slidably installed inside the net groove (24). There are two anti-detachment rods (25) that are rotatably installed on the front side of the top surface of the frame (21) and the input end of the linear motor (23) is electrically connected to the output end of the controller (17).

3. The high and low temperature alternating damp heat test chamber according to claim 2, characterized in that: The adjustment unit (2) also includes a sealing rubber strip (26), a main motor (27), a plate groove (28), and an L-shaped sealing plate (29). The plate groove (28) is opened on the top surface inside the heating chamber (3) and the cooling chamber (4). The main motor (27) is fixed on the rear side of the housing (1). The output shaft of the main motor (27) is fixedly connected to the rear end of the L-shaped sealing plate (29). The L-shaped sealing plate (29) is engaged with the inside of the plate groove (28). Sealing rubber strips (26) are glued to both the front and rear sides of the L-shaped sealing plate (29). The input end of the main motor (27) is electrically connected to the output end of the controller (17).

4. The high and low temperature alternating damp heat test chamber according to claim 1, characterized in that: It also includes a placement slot (10), a humidifier (11) and a nozzle (12). The placement slot (10) is located at the bottom of the front side of the box (1). The humidifier (11) is placed inside the placement slot (10). There are two nozzles (12) and they are placed in the grooves on the bottom surface of the heating chamber (3) and the cooling chamber (4) respectively. The two air outlets of the humidifier (11) are connected to the air inlets of the corresponding two nozzles (12) respectively. The input end of the humidifier (11) is electrically connected to the output end of the controller (17).

5. A high and low temperature alternating damp heat test chamber according to claim 1, characterized in that: It also includes a motor (13) and a lead screw (14). There are two motors (13) and they are fixed on the left and right sides of the top surface of the housing (1). The lead screw (14) is rotatably installed inside the slide groove (8). The top end of the lead screw (14) is connected to the output shaft of the motor (13). The lead screw (14) is threadedly connected to the screw hole on the surface of the housing cover (9). The input end of the motor (13) is electrically connected to the output end of the controller (17).

6. The high and low temperature alternating damp heat test chamber according to claim 1, characterized in that: It also includes a temperature and humidity sensor (15), there are two temperature and humidity sensors (15) and they are fixed on the top surface of the box (1) with left and right sides corresponding to each other. The output end of the temperature and humidity sensor (15) is electrically connected to the input end of the controller (17).

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