Incubator testing device
By using external water-cooled insulation and internal air-cooled temperature dissipation methods in the thermostat test device, the problem that the prior art cannot protect the test instrument in high and low temperature environments is solved, a safe temperature and humidity environment is achieved, internal electronic components are protected and signal-level testing is supported.
Patent Information
- Application Number
- CN202421530096.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-01
AI Technical Summary
Existing test devices cannot effectively protect the test instruments and instruments in high and low temperature testing environments, resulting in the inability to conduct signal-level testing.
A thermostat testing device is designed to create a safe temperature and humidity environment by using external water-cooling insulation and internal air-cooling to disperse temperature, protecting the internal electronic components of the tested DUT.
It effectively avoids high and low temperature damage to internal electronic components, ensures the smooth completion of testing, and realizes the ability to conduct signal-level testing in a specific environment.
Smart Images
Figure CN222926311U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of test devices, and particularly relates to a temperature chamber test device. Background Art
[0002] High and low temperature and humidity tests are a very mature type of test in environmental testing. Usually, the device under test (DUT) is placed in a temperature chamber capable of realizing various temperature and humidity environments according to requirements in the shutdown or startup state for testing. The inspection of the test results usually includes the following methods:
[0003] 1. After a stage of temperature and humidity testing is completed, the DUT is taken out of the temperature chamber. After the DUT reaches room temperature, it is powered on, and its functions or performance are checked to determine whether it can work normally.
[0004] 2. The DUT is in the powered-on state in the temperature chamber. By observing its UI or monitoring the status through a cable monitor, it is determined whether the DUT can work normally in the test environment.
[0005] However, there are certain specific test requirements that require signal-level testing of the DUT in a specific environment. It is necessary to connect a test instrument (such as an oscilloscope probe) close to the DUT to observe the change in its working state in a specific environment. Many test instruments and meters themselves cannot adapt to work in the corresponding test environment. Therefore, it is necessary to create a small environment that meets room temperature conditions for the test instruments and meters to meet the above test requirements. The utility model provides a temperature chamber test device to solve the problems raised in the above background art. Summary of the Utility Model
[0006] The purpose of the utility model is to provide a temperature chamber test device. The test environment can meet the requirements that the protected part of the DUT4 to be tested is in a safe temperature and humidity small environment in the test temperature chamber through the methods of external water-cooled heat insulation and internal air-cooled heat dissipation, avoiding damage to internal electronic components by high and low temperatures, and facilitating the smooth completion of the test work.
[0007] To achieve the above purpose, a temperature chamber test device is provided, including a test temperature chamber and a DUT to be tested. The inside of the test temperature chamber is provided with a heat-insulating outer layer. An accommodating inner layer is arranged inside the heat-insulating outer layer. A turret water-cooled middle layer is arranged between the heat-insulating outer layer and the accommodating inner layer. One end of the heat-insulating outer layer is provided with high-temperature EVA, and the other end extends to the outside of the test temperature chamber. The DUT to be tested is arranged inside the accommodating inner layer. An air inlet pipe and a temperature sensing wire are also arranged inside the accommodating inner layer.
[0008] According to the described incubator testing device, a heat exchanger and a circulation pump are provided on the top of the testing incubator. Both ends of the middle layer of the tower-type water-cooling are provided with water nozzles extending outside the heat-insulating outer layer. Both of the two water nozzles are respectively connected to the circulation pump and the heat exchanger through connecting pipes, and the circulation pump and the heat exchanger are also connected through a connecting pipe.
[0009] According to the described incubator testing device, sealing rings are provided at both ends between the middle layer of the tower-type water-cooling and the heat-insulating outer layer.
[0010] According to the described incubator testing device, temperature sensors are provided inside both the accommodating inner layer and the intake pipe.
[0011] According to the described incubator testing device, an air flow meter is provided at one end of the intake pipe close to the temperature sensor.
[0012] According to the described incubator testing device, a box door is hinged on the front side of the testing incubator.
[0013] The utility model has the following beneficial effects:
[0014] Compared with the prior art, for the described incubator testing device, the testing environment adopts the methods of external water-cooling heat insulation and internal air-cooling heat dissipation, which can ensure that the protected part of the DUT4 to be tested is in a safe temperature and humidity microenvironment inside the testing incubator, avoiding damage to the internal electronic components by high and low temperatures, and facilitating the smooth completion of the testing work.
[0015] The additional aspects and advantages of the utility model will be partly given in the following description, partly become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The following further illustrates the utility model in conjunction with the drawings and embodiments;
[0017] Figure 1 It is the first main view sectional structure schematic diagram of an incubator testing device of the utility model;
[0018] Figure 2 It is the second main view sectional structure schematic diagram of an incubator testing device of the utility model;
[0019] Figure 3 It is the main view structure schematic diagram of an incubator testing device of the utility model;
[0020] Figure 4 It is the structure schematic diagram of the heat-insulating outer layer, accommodating inner layer, DUT to be tested, temperature-sensing wire and intake pipe of an incubator testing device of the utility model.
[0021] LEGEND DESCRIPTION:
[0022] 1. Test incubator; 2. Thermal insulation outer layer; 3. Inner accommodating layer; 4. DUT under test; 5. High-temperature EVA; 6. Air inlet pipe; 7. Temperature sensing wire; 8. Turret-type water-cooled middle layer; 9. Water nozzle; 10. Heat exchanger; 11. Circulation pump; 12. Connecting pipe; 13. Sealing ring; 14. Temperature sensor; 15. Air flow meter; 16. Chamber door. Detailed implementation manners
[0023] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it should not be construed as a limitation on the protection scope of the present invention.
[0024] Referring to Figures 1-4 , an incubator test device according to an embodiment of the present invention includes a test incubator 1 and a DUT 4 under test. A thermal insulation outer layer 2 is provided inside the test incubator 1, an inner accommodating layer 3 is provided inside the thermal insulation outer layer 2, a turret-type water-cooled middle layer 8 is provided between the thermal insulation outer layer 2 and the inner accommodating layer 3, a high-temperature EVA 5 is provided at one end of the thermal insulation outer layer 2, and the other end extends to the outside of the test incubator 1. The DUT 4 under test is arranged inside the inner accommodating layer 3, and an air inlet pipe 6 and a temperature sensing wire 7 are also provided inside the inner accommodating layer 3;
[0025] The DUT 4 under test is placed inside the inner accommodating layer 3. The protected part and the tested part of the DUT 4 under test are separated by the high-temperature EVA 5. The turret-type water-cooled middle layer 8 realizes the isolation of the temperature inside the small environment and the temperature inside the incubator through the circulation of the coolant and the exchange with the room temperature. The air inlet pipe 6 can continuously blow room-temperature air into the inner accommodating layer 3 and then discharge the air from the inner accommodating layer 3, so as to realize air flow and ensure that the protected part of the DUT 4 under test is within the working temperature range. And under the action of the temperature sensing wire 7, the temperature and humidity inside the inner accommodating layer 3 can be monitored in real time. This test environment can meet the requirement that the protected part of the DUT 4 under test is in a safe temperature and humidity small environment inside the test incubator 1 through the external water-cooling insulation and internal air-cooling heat dissipation methods, avoiding damage to the internal electronic components by high and low temperatures, and facilitating the smooth completion of the test work.
[0026] A heat exchanger 10 and a circulation pump 11 are provided at the top of the test incubator 1. Water nozzles 9 extending to the outside of the thermal insulation outer layer 2 are provided at both ends of the turret-type water-cooled middle layer 8. Both water nozzles 9 are connected to the circulation pump 11 and the heat exchanger 10 respectively through connecting pipes 12. The circulation pump 11 and the heat exchanger 10 are also connected through a connecting pipe 12. The coolant circulates between the heat exchanger 10 and the turret-type water-cooled middle layer 8 through the circulation pump 11. Through the circulation of the coolant and the exchange with the room temperature, the isolation of the temperature inside the thermal insulation outer layer 2 and the temperature inside the test incubator 1 can be realized.
[0027] Sealing rings 13 are provided at both ends between the middle layer 8 of the tower-type water cooler and the outer heat-insulating layer 2. The sealing rings 13 can well seal the connection between the middle layer 8 of the tower-type water cooler and the outer heat-insulating layer 2 to ensure the normal circulation of the coolant inside the middle layer 8 of the tower-type water cooler.
[0028] Temperature sensors 14 are provided inside both the inner accommodating layer 3 and the intake pipe 6. An air flow meter 15 is provided at one end of the intake pipe 6 close to the temperature sensor 14. Under the action of the temperature sensor 14, it is convenient to detect the temperature of the inflowing and outflowing air, so as to adjust the intake air temperature according to the detection requirements. Under the action of the air flow meter 15, it can be used to monitor the flow rate of the inflowing air.
[0029] A box door 16 is hinged to the front side of the test incubator 1. The hinged box door 16 is convenient to open and close, facilitating the operation of the box door 16 to close the test incubator 1.
[0030] Working principle: The DUT 4 to be tested is placed inside the inner accommodating layer 3. The protected part and the tested part of the DUT 4 to be tested are separated by the high-temperature EVA 5. The coolant circulates between the heat exchanger 10 and the middle layer 8 of the tower-type water cooler through the circulating pump 11. Through the circulation of the coolant and the exchange with the room temperature, the temperature inside the outer heat-insulating layer 2 can be separated from the temperature inside the test incubator 1. The intake pipe 6 can continuously blow room-temperature air into the inner accommodating layer 3 and then discharge the air from the inner accommodating layer 3, realizing the air flow to ensure that the protected part of the DUT 4 to be tested is within the working temperature range. And under the action of the temperature sensing wire 7, the temperature and humidity inside the inner accommodating layer 3 can be monitored in real time. This test environment can meet the requirement that the protected part of the DUT 4 to be tested is in a safe temperature and humidity microenvironment inside the test incubator 1 through the external water-cooling heat insulation and internal air-cooling heat dissipation methods, avoiding damage to the internal electronic components by high and low temperatures, which is conducive to ensuring the smooth completion of the test work.
[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present invention.
Claims
1. A temperature box test device, characterized in that: The invention comprises a test incubator (1) and a DUT (4) to be tested. The test incubator (1) is provided with an outer insulation layer (2) inside. A containing inner layer (3) is provided inside the outer insulation layer (2). A rotating tower type water cooling middle layer (8) is provided between the outer insulation layer (2) and the containing inner layer (3). One end of the outer insulation layer (2) is provided with high temperature EVA (5), and the other end extends to the outside of the test incubator (1). The DUT (4) to be tested is provided inside the containing inner layer (3). An air inlet pipe (6) and a temperature sensing line (7) are also provided inside the containing inner layer (3).
2. A temperature box testing device according to claim 1, characterized in that: A heat exchanger (10) and a circulation pump (11) are provided on the top of the test incubator (1), and water nozzles (9) extending to the outside of the thermal insulation outer layer (2) are provided at both ends of the spiral tower water-cooled middle layer (8), and the two water nozzles (9) are respectively connected to the circulation pump (11) and the heat exchanger (10) through a connecting pipe (12), and the circulation pump (11) and the heat exchanger (10) are also connected through a connecting pipe (12).
3. A temperature box testing device according to claim 2, characterized in that: Sealing rings (13) are provided at both ends between the spiral tower type water-cooling middle layer (8) and the heat-insulating outer layer (2).
4. A temperature box testing device according to claim 3, characterized in that: Temperature sensors (14) are provided on the inner sides of the containing inner layer (3) and the air intake pipe (6).
5. A temperature box testing device according to claim 4, characterized in that: An air flow meter (15) is provided at one end of the air intake pipe (6) close to the temperature sensor (14).
6. A temperature box testing device according to claim 5, characterized in that: The front side of the test incubator (1) is hinged with a door (16).