High and low temperature rapid temperature change damp heat test chamber

Abstract

The utility model is used in the field of test box, concretely is high and low temperature rapid temperature change damp heat test box, including case, first isolation board and second isolation board, be equipped with the refrigeration mechanism for refrigeration between the top of first isolation board and case, be equipped with the heating mechanism for heating between the bottom of second isolation board and case, be equipped with test space between first isolation board and second isolation board, the top of second isolation board sets up with for placing detection article's placing table, the outside of case is equipped with the humidification mechanism for increasing humidity, the bottom of first isolation board and the top of second isolation board are equipped with temperature and humidity integrated sensor respectively, the number of temperature and humidity integrated sensor is at least 2, through multiple temperature and humidity integrated sensor simultaneously to the temperature and humidity of different corners in test space are monitored, thereby improve each local temperature and humidity sensing precision of test space, increase the accuracy of test data.

Description

Technical Field

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

[0002] High and low temperature alternating damp heat test equipment is mainly used to simulate the test environment required for test products. It is mainly used in aviation, automotive, home appliance, scientific research and other fields to test and determine the parameters and performance of electrical, electronic and other products and materials after temperature and humidity or constant temperature environment changes. High and low temperature alternating damp heat test equipment is mainly used to simulate the test environment required for test products. At present, the existing high and low temperature alternating damp heat test equipment has low temperature and humidity sensing accuracy in various parts of the test space, which can easily lead to inaccurate test data. Summary of the Invention

[0003] The purpose of this utility model is to provide a high and low temperature rapid temperature change and humidity test chamber to solve the problems mentioned in the background art. To achieve the above objective, this utility model provides the following technical solution: a high and low temperature rapid temperature change and humidity test chamber, including a chassis, with a first isolation plate and a second isolation plate fixedly connected inside the chassis. A first accommodating space is provided between the first isolation plate and the top of the chassis, and a refrigeration mechanism for cooling is arranged in the first accommodating space. A second accommodating space is provided between the second isolation plate and the bottom of the chassis, and a heating mechanism for heating is arranged in the second accommodating space. A test space is provided between the first isolation plate and the second isolation plate. A placement platform for placing test items is provided at the top of the second isolation plate. A humidification mechanism for increasing humidity is provided on the outside of the chassis. The number of humidification mechanisms is at least one, and one end of the humidification mechanism passes through the chassis and extends into the test space. Temperature and humidity integrated sensors are respectively provided at the bottom of the first isolation plate and the top of the second isolation plate, and the number of temperature and humidity integrated sensors is at least two. Preferably, the refrigeration mechanism includes a compressor, one end of which is connected to a condenser. Both the compressor and the condenser are fixedly connected to the top of the casing located in the first accommodating space. A refrigeration evaporator is fixedly connected to the top of the first isolation plate, and a first gas supply pipe is fixedly connected to the bottom of the refrigeration evaporator. The first gas supply pipe passes through the first isolation plate and extends into the test space. An expansion valve is provided between the condenser and the refrigeration evaporator. The compressor, condenser, expansion valve, refrigeration evaporator, and first gas supply pipe are all sequentially connected by pipes. The compressor and the refrigeration evaporator are connected by pipes. Preferably, the number of first gas supply pipes is at least two. Preferably, the heating mechanism includes a fan, with a heating box at one end of the fan. The heating box contains a heating wire for heating. A second air supply pipe is located at one end of the heating box, with one end penetrating a second partition plate and extending into the test space. A solenoid valve for controlling air supply is located between the heating box and the second air supply pipe. The fan, heating box, solenoid valve, and second air supply pipe are all connected by pipes. A third air supply pipe for air intake is located at the other end of the fan, penetrating the casing. Preferably, the second air supply pipe has at least two air supply channels, and all air supply channels penetrate the second partition plate.

[0004] The humidification mechanism includes a humidification chamber, one end of which is connected to an atomizer. The atomizer is connected via a pipe to an exhaust fan for drawing atomized air. One end of the exhaust fan is provided with a humidification pipe, one end of which passes through the casing and extends into the test space. Preferably, a door panel assembly is hinged to the front end of the casing. The door panel assembly includes a door panel body, which is sealed to the casing. The door panel body has an observation window for easy observation, a controller, and a handle for easy opening and closing.

[0005] Preferably, the controller is equipped with a display panel.

[0006] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. A high and low temperature rapid temperature change and humidity test chamber includes a chassis, with a first isolation plate and a second isolation plate fixedly connected inside the chassis. A first accommodating space is provided between the first isolation plate and the top of the chassis, and a refrigeration mechanism for cooling is installed in the first accommodating space. A second accommodating space is provided between the second isolation plate and the bottom of the chassis, and a heating mechanism for heating is installed in the second accommodating space. A test space is provided between the first isolation plate and the second isolation plate. A placement platform for placing test items is provided at the top of the second isolation plate. A humidification mechanism for increasing humidity is provided on the outside of the chassis. There is at least one humidification mechanism. One end of the humidification mechanism passes through the chassis and extends into the test space. Temperature and humidity integrated sensors are respectively provided at the bottom of the first isolation plate and the top of the second isolation plate. There are at least two temperature and humidity integrated sensors. By using multiple temperature and humidity integrated sensors to simultaneously monitor the temperature and humidity in different corners of the test space, the temperature and humidity sensing accuracy of each local part of the test space is improved, and the accuracy of the test data is increased. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the internal structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the door panel assembly described in this utility model; In the figure: chassis 1, refrigeration mechanism 2, compressor 21, condenser 22, expansion valve 23, refrigeration evaporator 24, first gas supply pipe 25, heating mechanism 3, fan 31, heating box 32, solenoid valve 33, second gas supply pipe 34, third gas supply pipe 35, humidification mechanism 4, humidification box 41, atomizer 42, exhaust fan 43, humidification pipe 44, first isolation plate 5, second isolation plate 6, placement platform 7, temperature and humidity integrated sensor 8, door panel assembly 9, door panel body 91, observation window 92, handle 93, controller 94. Detailed Implementation

[0008] 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 scope of protection of the present utility model. In the description of the present utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," etc., indicate the orientation or positional relationship based on the accompanying drawings. Figure 1 The orientations or positional relationships shown are for ease of description and simplification of this utility model only, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Figures 1 to 2As shown, this embodiment of the high and low temperature rapid temperature change and humidity test chamber includes a chassis 1. A first isolation plate 5 and a second isolation plate 6 are fixedly connected inside the chassis 1. A first accommodating space is provided between the first isolation plate 5 and the top of the chassis 1, and a refrigeration mechanism 2 for cooling is installed in the first accommodating space. A second accommodating space is provided between the second isolation plate 6 and the bottom of the chassis 1, and a heating mechanism 3 for heating is installed in the second accommodating space. A test space is provided between the first isolation plate 5 and the second isolation plate 6. A placement platform 7 for placing test items is provided at the top of the second isolation plate 6. A humidification mechanism 4 for increasing humidity is provided on the outside of the chassis 1. There is at least one humidification mechanism 4. One end of the humidification mechanism 4 passes through the chassis 1 and extends into the test space. Temperature and humidity integrated sensors 8 are respectively provided at the bottom of the first isolation plate 5 and the top of the second isolation plate 6. There are at least two temperature and humidity integrated sensors 8. By simultaneously monitoring the temperature and humidity in different corners of the test space using multiple temperature and humidity integrated sensors 8, the sensing accuracy of temperature and humidity in various parts of the test space is improved, thereby increasing the accuracy of the test data. Furthermore, the refrigeration mechanism 2 includes a compressor 21, one end of which is connected to a condenser 22. Both the compressor 21 and the condenser 22 are fixedly connected to the top of the casing 1 located in the first accommodating space. A refrigeration evaporator 24 is fixedly connected to the top of the first isolation plate 5, and a first gas supply pipe 25 is fixedly connected to the bottom of the refrigeration evaporator 24. The first gas supply pipe 25 passes through the first isolation plate 5 and extends into the test space. An expansion valve 23 is provided between the condenser 22 and the refrigeration evaporator 24. The compressor 21, condenser 22, expansion valve 23, refrigeration evaporator 24, and first gas supply pipe 25 are all sequentially connected by pipes. The compressor 21 and the refrigeration evaporator 24 are connected by pipes. The compressor 21 can compress the gaseous refrigerant in the casing 1 into a high-temperature, high-pressure liquid refrigerant, which then passes through the condenser 22 to form a low-temperature, high-pressure liquid refrigerant, and then passes through the refrigeration evaporator 24. The gas is delivered to the test space through the first gas supply pipe 25, enabling rapid cooling. Furthermore, there are at least two first gas supply pipes 25. By setting multiple first gas supply pipes 25, the gas supply channels are increased, thereby improving the cooling efficiency.Furthermore, the heating mechanism 3 includes a fan 31, with a heating box 32 at one end of the fan 31. The heating box 32 contains heating wires for heating. A second air supply pipe 34 is located at one end of the heating box 32, penetrating the second isolation plate 6 and extending into the test space. A solenoid valve 33 for controlling air supply is located between the heating box 32 and the second air supply pipe 34. The fan 31, heating box 32, solenoid valve 33, and second air supply pipe 34 are all connected by pipes. A third air supply pipe 35 for air intake is located at the other end of the fan 31, penetrating the casing 1. Air from outside the casing 1 is supplied to the heating box 32 via the fan 31 and the third air supply pipe 35, and heated by the heating wires inside the heating box 32. The heated air is then supplied into the test space via the second air supply pipe 34, thus achieving heating of the test space. The control by the solenoid valve 33 improves the degree of automation, facilitates operation, and increases the operator's testing efficiency. Furthermore... The second gas supply pipe 34 is provided with at least two gas supply channels, and all gas supply channels penetrate the second isolation plate 6. By providing at least two gas supply channels, the heating efficiency of this utility model is improved. Furthermore, the humidification mechanism 4 includes a humidification box 41. One end of the humidification box 41 is connected to an atomizer 42. The atomizer 42 is connected to an exhaust fan 43 for extracting atomized air via a pipe. One end of the exhaust fan 43 is provided with a humidification pipe 44. One end of the humidification pipe 44 penetrates the casing 1 and extends into the test space. The atomizer 42 atomizes the water in the humidification box 41, the exhaust fan 43 extracts the atomized water vapor, and it is input into the test space through the humidification pipe 44, thereby realizing the humidification operation of this utility model. Furthermore, a door panel assembly 9 is hinged to the front end of the chassis 1. The door panel assembly 9 includes a door panel body 91, which is sealed to the chassis 1, improving the airtightness of the test space and increasing the accuracy of the test. The door panel body 91 is provided with an observation window 92 for easy observation, a controller 94, and a handle 93 for easy opening and closing. Further, the compressor 21, condenser 22, expansion valve 23, evaporator 24, fan 31, heating chamber 32, heating wire, solenoid valve 33, atomizer 42, exhaust fan 43, and temperature and humidity sensor 8 are all electrically connected to the controller 94. The controller 94 is provided with a display panel, which allows operators to easily observe the temperature and humidity in the test space, thereby facilitating operation, improving operator efficiency, and increasing the degree of automation.Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high and low temperature rapid temperature change and humidity test chamber, including a chassis (1), characterized in that: The chassis (1) is fixedly connected to a first isolation plate (5) and a second isolation plate (6). A first accommodating space is provided between the first isolation plate (5) and the top of the chassis (1). A refrigeration mechanism (2) for refrigeration is installed in the first accommodating space. A second accommodating space is provided between the second isolation plate (6) and the bottom of the chassis (1). A heating mechanism (3) for heating is provided in the second accommodating space. A test space is provided between the first isolation plate (5) and the second isolation plate (6). A placement platform (7) for placing test items is provided at the top of the second isolation plate (6). A humidifying mechanism (4) for increasing humidity is provided on the outside of the chassis. There is at least one humidifying mechanism (4). One end of the humidifying mechanism (4) passes through the chassis and extends into the test space. Temperature and humidity integrated sensors (8) are respectively provided at the bottom of the first isolation plate (5) and the top of the second isolation plate (6). There are at least two temperature and humidity integrated sensors (8).

2. The high and low temperature rapid temperature change and humidity test chamber according to claim 1, characterized in that: The refrigeration mechanism (2) includes a compressor (21), one end of which is connected to a condenser (22). The compressor (21) and the condenser (22) are both fixedly connected to the top of the first accommodating space of the casing (1). The top of the first isolation plate (5) is fixedly connected to a refrigeration evaporator (24). The bottom of the refrigeration evaporator (24) is fixedly connected to a first gas supply pipe (25). The first gas supply pipe (25) passes through the first isolation plate (5) and extends into the test space. An expansion valve (23) is provided between the condenser (22) and the refrigeration evaporator (24). The compressor (21), the condenser (22), the expansion valve (23), the refrigeration evaporator (24) and the first gas supply pipe (25) are all connected in sequence by pipes. The compressor (21) and the refrigeration evaporator (24) are connected by pipes.

3. The high and low temperature rapid temperature change and humidity test chamber according to claim 2, characterized in that: The number of the first gas supply pipes (25) is at least two.

4. The high and low temperature rapid temperature change and humidity test chamber according to claim 1, characterized in that: The heating mechanism (3) includes a fan (31), a heating box (32) is provided at one end of the fan (31), a heating wire for heating is provided inside the heating box (32), a second gas supply pipe (34) is provided at one end of the heating box (32), one end of the second gas supply pipe (34) passes through the second isolation plate (6) and extends into the test space, a solenoid valve (33) for controlling the gas supply is provided between the heating box (32) and the second gas supply pipe (34), the fan (31), the heating box (32), the solenoid valve (33) and the second gas supply pipe (34) are all connected by pipes, and a third gas supply pipe (35) for air intake is provided at the other end of the fan (31), the third gas supply pipe (35) passes through the casing (1).

5. The high and low temperature rapid temperature change and humidity test chamber according to claim 4, characterized in that: The second gas pipe (34) is provided with at least two gas delivery channels, and all gas delivery channels pass through the second isolation plate (6).

6. The high and low temperature rapid temperature change and humidity test chamber according to claim 1, characterized in that: The humidification mechanism (4) includes a humidification box (41), one end of which is connected to an atomizer (42). The atomizer is connected to a blower (43) for drawing atomized air through a pipe. One end of the blower (43) is provided with a humidification pipe (44), one end of which passes through the casing (1) and extends into the test space.

7. The high and low temperature rapid temperature change and humidity test chamber according to claim 1, characterized in that: The front end of the chassis (1) is hinged to a door panel assembly (9). The door panel assembly (9) includes a door panel body (91). The door panel body (91) and the chassis (1) are sealed together. The door panel body (91) is provided with an observation window (92) for easy observation. The door panel body (91) is provided with a controller (94). The door panel body (91) is provided with a handle (93) for easy opening and closing of the door panel body (91).

8. The high and low temperature rapid temperature change and humidity test chamber according to claim 7, characterized in that: The controller (94) is equipped with a display panel.

Images