Test box suitable for capacitor

Abstract

The utility model relates to a test box suitable for a capacitor, the test box comprises a box body, a humidity sensor, a humidifier and a controller, the box body is provided with a detection cavity, the humidity sensor and the humidifier are both fixedly connected to the inner wall of the detection cavity, and the controller is electrically connected to the humidity sensor and the humidifier. The humidity sensor is used for detecting the humidity in the detection cavity and sending a detection value to the controller, and the controller controls the humidifier to work, simulates diversified high-humidity scenes from a normal state to an extreme state, observes the performance of the capacitor under different humidity conditions, and improves the test quality.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of test boxes, in particular to a test box suitable for capacitors. BACKGROUND

[0002] With the rapid development of miniaturization and integration of electronic devices, people have higher requirements for the working environment adaptability of capacitors. In order to ensure that the capacitor can work normally under various extreme conditions, especially in the environment with high humidity and large temperature fluctuation, the stability of the capacitor becomes one of the key indicators for evaluating the quality of the capacitor. There are many types of environmental test devices on the market for simulating different climate conditions to evaluate the reliability and life of products. These test boxes are widely used in product quality inspection in many fields such as aviation, aerospace and military.

[0003] The existing capacitor test equipment mainly includes constant temperature and humidity test box, cold and hot impact test machine, etc. The constant temperature and humidity test box is mainly used to simulate specific humidity and temperature conditions to observe the changes of the sample under this condition. The cold and hot impact test machine can quickly realize the sharp change of temperature, so as to detect the reaction of the sample under the condition of extreme temperature difference. Although these two common test devices can preliminarily judge the basic performance of the measured object, there are still some obvious problems in actual application. First, most of these devices cannot well simulate the complex and changeable actual working environment, especially the frequent change of humidity. Second, the stability of the system itself is not ideal under the condition of long-term continuous operation, which cannot guarantee the accuracy and consistency during the entire experimental period, affecting the final test results. CONTENT OF THE INVENTION

[0004] In order to improve the test quality, the present application provides a test box suitable for capacitors.

[0005] The test box suitable for capacitors provided by the present application adopts the following technical scheme:

[0006] A test box suitable for capacitors, comprising a box body, a humidity sensor, a humidifier and a controller, the box body is provided with a detection cavity, the humidity sensor and the humidifier are fixedly connected to the inner wall of the detection cavity, and the controller is electrically connected to the humidity sensor and the humidifier.

[0007] By adopting the above technical scheme, the humidity sensor is used to detect the humidity in the detection cavity and send the detection value to the controller, and the controller controls the humidifier to work, simulates diversified high-humidity scenes from normal to extreme, observes the performance of the capacitor under different humidity conditions, and improves the test quality.

[0008] Preferably, the temperature sensor and the heating element are fixedly connected to the inner wall of the detection cavity, and the controller is electrically connected to the temperature sensor and the heating element.

[0009] By adopting the above technical scheme, the temperature sensor is used to detect the temperature in the detection cavity and send the detection value to the controller, the controller controls the heating element to work, the diversified high-temperature scenes from normal to extreme are simulated, the performance of the capacitor under different temperature conditions is observed, and the test quality is improved.

[0010] Preferably, the box body includes a main body and a box door, one side of the main body is provided with a mounting groove, and the box door is hinged to the outer wall of the main body and used to cover the slot opening of the mounting groove.

[0011] By adopting the above technical scheme, the box door is rotated to open the mounting groove, the capacitor is placed in the detection cavity, the humidity sensor and the humidifier are maintained, the detection cavity is cleaned, and the user is facilitated to use.

[0012] Preferably, the box body further includes a sealing ring, the sealing ring is arranged at the outer periphery of the mounting groove, one side of the sealing ring is fixedly connected to one end of the main body facing the box door, and the other side of the sealing ring is used to abut against the box door.

[0013] By adopting the above technical scheme, the sealing ring improves the sealing performance of the main body and the box door, reduces the probability of external air entering the detection cavity, reduces the probability of air leakage in the detection cavity, facilitates the detection of the pressure resistance of the capacitor, and improves the detection quality.

[0014] Preferably, the box body further includes a gas pipe, a gas pump, a valve and a pressure sensor, the main body is provided with a gas inlet, the gas inlet is communicated with the gas pump through the gas pipe, the valve is connected to the inner wall of the gas pipe and used to control the opening and closing of the gas pipe, and the pressure sensor is fixedly connected to the inner wall of the detection cavity.

[0015] By adopting the above technical scheme, the valve is opened, the gas pump is started to control the change of the air pressure in the detection cavity, the pressure sensor sends the detection value to the controller, the controller controls the opening and closing of the gas pump and the valve, the air pressure in the detection cavity is adjusted, and the detection quality is improved.

[0016] Preferably, the box body further includes an alarm, the alarm is fixedly connected to the outer wall of the box body, and the alarm is electrically connected to the controller.

[0017] By adopting the above technical scheme, when the detection value of the pressure sensor changes after the valve is closed, the controller controls the alarm to be electrified, the alarm reminds the operator that the detection cavity leaks air, the adjustment and maintenance are facilitated, and the influence on the test is reduced.

[0018] Preferably, the observation window is further included, the outer wall of the box is provided with an observation port, the observation port is communicated with the detection cavity, the observation window is fixedly connected to the inner wall of the observation port, the observation window is transparent, and the observation window is used for the user to observe the capacitor.

[0019] By adopting the above technical scheme, the observation window is convenient for the user to observe the internal capacitor, is convenient for the user to judge the change of the capacitor with the environment, protects the user through the observation window, and reduces the probability of safety accidents.

[0020] Preferably, the camera is further included, the camera is arranged on the side of the observation window away from the detection cavity, the camera is fixedly connected to the inner wall of the observation port, the camera is used for shooting the capacitor, and the camera is electrically connected to the controller.

[0021] By adopting the above technical scheme, the camera shoots the capacitor, is convenient for the user to remotely observe the state of the capacitor, reduces the probability of safety accidents, the camera can shoot clearer pictures, captures the slight change of the surface of the capacitor sample, is convenient for obtaining more accurate test results, and improves the detection quality.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. The humidity sensor is used for detecting the humidity in the detection cavity and sending the detection value to the controller, the controller controls the humidifier to work, simulates diversified high-humidity scenes from normal to extreme, observes the performance of the capacitor under different humidity conditions, and improves the test quality;

[0024] 2. When the detection value of the pressure sensor changes after the valve is closed, the controller controls the alarm to be electrified, the alarm reminds the operator to detect the air leakage of the detection cavity, is convenient for timely adjustment and maintenance, and reduces the influence on the test;

[0025] 3. The camera shoots the capacitor, is convenient for the user to remotely observe the state of the capacitor, reduces the probability of safety accidents, the camera can shoot clearer pictures, captures the slight change of the surface of the capacitor sample, is convenient for obtaining more accurate test results, and improves the detection quality. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a whole structure schematic view of a test box suitable for a capacitor.

[0027] Figure 2 It is a whole structure schematic view of a main body, a controller, a temperature and humidity control assembly, and a sealing detection assembly.

[0028] Figure 3 It is a whole structure schematic view of a box door and a sample observation assembly.

[0029] Explanation of reference signs: 1, box body; 11, main body; 111, placing groove; 112, mounting groove; 113, hinged joint; 114, air vent; 12, box door; 121, hinged shaft; 122, handle; 123, observation port; 13, sealing ring; 14, detection table; 15, detection cavity; 2, controller; 3, temperature and humidity control assembly; 31, humidity sensor; 32, humidifier; 33, temperature sensor; 34, heating element; 4, sealing detection assembly; 41, air pipe; 42, air pump; 43, valve; 44, pressure sensor; 45, alarm; 46, infrared camera; 5, sample observation assembly; 51, observation window; 52, camera. DETAILED DESCRIPTION

[0030] The following will be described in detail in combination with the accompanying drawings. Figures 1-3 The application is further described in detail.

[0031] The application discloses a test box suitable for capacitors. Figure 1 and Figure 2 The test box suitable for capacitors comprises a box body 1, a controller 2, a temperature and humidity control assembly 3, a sealing detection assembly 4 and a sample observation assembly 5.

[0032] Referring to Figure 2 and Figure 3 The box body 1 comprises a main body 11, a box door 12, a sealing ring 13 and a detection table 14, one side of the main body 11 is provided with a placing groove 111, the groove bottom of the placing groove 111 is provided with a mounting groove 112, one end of the box door 12 is fixedly connected with a hinged shaft 121, the upward groove wall and the downward groove wall of the placing groove 111 are both provided with a hinged joint 113, the hinged joint 113 is arranged on the outer periphery of the mounting groove 112, the axis of the hinged joint 113 is vertical, the hinged shaft 121 is coaxially rotationally connected with the inner wall of the hinged joint 113, the placing groove 111 is used for embedding the box door 12, the box door 12 is used for covering the groove opening of the mounting groove 112, one end of the box door 12 away from the hinged shaft 121 is detachably connected with the main body 11 through screws, and one end of the box door 12 away from the mounting groove 112 is fixedly connected with a handle 122.

[0033] The sealing ring 13 is arranged on the outer periphery of the mounting groove 112, one side of the sealing ring 13 is fixedly connected with the groove bottom of the placing groove 111, the other side of the sealing ring 13 is used for abutting against the box door 12, the sealing ring 13 is arranged on the side of the hinged shaft 121 close to the mounting groove 112, and the detection table 14 is fixedly connected with the upward groove wall of the mounting groove 112, and the detection table 14 is used for placing capacitors. The box door 12 and the groove wall of the mounting groove 112 jointly enclose a detection cavity 15. The controller 2 is fixedly connected with the outer wall of the main body 11.

[0034] Referring to Figure 2The temperature sensor 33 is fixedly connected to the groove wall of the mounting groove 112, and the temperature sensor 33 is used to detect the temperature of the detection cavity 15. The heating element 34 is fixedly connected to the inner wall of the detection cavity 15, and the heating element 34 is close to the bottom wall of the detection cavity 15. The heating element 34 is arranged on the outer periphery of the detection table 14. The heating element 34 is arranged as an electric heating wire. The heating element 34 is used to heat the detection cavity 15. The controller 2 is electrically connected to the temperature sensor 33 and the heating element 34.

[0035] The temperature sensor 33 is fixedly connected to the groove wall of the mounting groove 112, and the temperature sensor 33 is used to detect the temperature of the detection cavity 15. The heating element 34 is fixedly connected to the inner wall of the detection cavity 15, and the heating element 34 is close to the bottom wall of the detection cavity 15. The heating element 34 is arranged on the outer periphery of the detection table 14. The heating element 34 is arranged as an electric heating wire. The heating element 34 is used to heat the detection cavity 15. The controller 2 is electrically connected to the temperature sensor 33 and the heating element 34.

[0036] Referring to Figure 1 and Figure 2 The sealing detection assembly 4 includes an air pipe 41, an air pump 42, a valve 43, a pressure sensor 44, an alarm 45, and an infrared camera 46. The side wall of the main body 11 is provided with a ventilation port 114 which is communicated with the mounting groove 112. One end of the air pipe 41 is coaxially fixedly connected to the inner wall of the ventilation port 114. The other end of the air pipe 41 is coaxially fixedly connected to the inner wall of one air port of the air pump 42. The air pump 42 is used to control the air inlet and outlet of the detection cavity 15. The valve 43 is connected to the inner wall of the air pipe 41. The valve 43 is used to control the on-off of the air pipe 41. The valve 43 is arranged as an electric control ball valve. The pressure sensor 44 is fixedly connected to the groove wall of the mounting groove 112. The pressure sensor 44 is used to detect the air pressure in the detection cavity 15. The alarm 45 is fixedly connected to the upper end of the main body 11. The infrared camera 46 is fixedly connected to the groove bottom of the mounting groove 112. The infrared camera 46 is used to shoot the box door 12 to detect the specific position of the air leakage. The alarm 45, the pressure sensor 44, the infrared camera 46, the air pump 42, and the valve 43 are all electrically connected to the controller 2.

[0037] The sample observation assembly 5 includes an observation window 51 and a camera 52. The box door 12 is provided with an observation port 123 which is communicated with the detection cavity 15. The observation window 51 is fixedly connected to the inner wall of the observation port 123. The observation window 51 covers the observation port 123. The observation window 51 is arranged as transparent. The observation window 51 is used for users to observe the capacitor. The camera 52 is arranged on the side of the observation window 51 which is away from the detection cavity 15. The camera 52 is fixedly connected to the inner wall of the observation port 123. The camera 52 is used to shoot the capacitor. The camera 52 is electrically connected to the controller 2.

[0038] The implementation principle of the test box suitable for the capacitor according to the embodiment of the application is as follows: the temperature and humidity sensor 31 is used for adjusting the temperature and humidity in the detection cavity 15, the sealing detection assembly 4 is used for adjusting the air pressure in the detection cavity 15, once the air leakage occurs, the alarm 45 starts to alarm, the infrared camera 46 judges the air leakage position, and the sample observation assembly 5 is convenient for the operator to observe the change of the capacitor under different test conditions.

[0039] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so: all equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A test chamber suitable for use with capacitors, characterized by: Including box (1), humidity sensor (31), humidifier (32) and controller (2), the box (1) is equipped with detection cavity (15), the humidity sensor (31) and humidifier (32) are all fixedly connected to the inner wall of detection cavity (15), the controller (2) is electrically connected to humidity sensor (31) and humidifier (32); The box (1) includes a main body (11) and a box door (12), one side of the main body (11) is provided with a mounting groove (112), the box door (12) is hinged to the outer wall of the main body (11), and the box door (12) is used to cover the slot opening of the mounting groove (112); The box (1) further includes a sealing ring (13), the sealing ring (13) is arranged on the outer periphery of the mounting groove (112), one side of the sealing ring (13) is fixedly connected to one end of the main body (11) towards the box door (12), and the other side of the sealing ring (13) is used to abut against the box door (12); Further comprising an air pipe (41), an air pump (42), a valve (43) and a pressure sensor (44), the main body (11) is provided with a ventilation port (114), the ventilation port (114) is communicated with the air pump (42) through the air pipe (41), the valve (43) is connected to the inner wall of the air pipe (41), the valve (43) is used to control the on-off of the air pipe (41), and the pressure sensor (44) is fixedly connected to the inner wall of the detection cavity (15), the air pump (42), the valve (43) and the pressure sensor (44) are all electrically connected to the controller (2).

2. A test chamber suitable for use with capacitors as defined in claim 1, wherein: Further comprising a temperature sensor (33) and a heating element (34), the temperature sensor (33) and the heating element (34) are both fixedly connected to the inner wall of the detection cavity (15), and the controller (2) is electrically connected to the temperature sensor (33) and the heating element (34).

3. A test chamber suitable for use with capacitors as defined in claim 1, wherein: Further comprising an alarm (45), the alarm (45) is fixedly connected to the outer wall of the box (1), and the alarm (45) is electrically connected to the controller (2).

4. A test chamber suitable for use with capacitors as defined in claim 1, wherein: Further comprising an observation window (51), the outer wall of the box (1) is provided with an observation port (123), the observation port (123) is communicated with the detection cavity (15), the observation window (51) is fixedly connected to the inner wall of the observation port (123), the observation window (51) is transparent, and the observation window (51) is used for users to observe the capacitor.

5. A test chamber suitable for use with capacitors as defined in claim 4, wherein: Further comprising a camera (52), the camera (52) is arranged on the side of the observation window (51) away from the detection cavity (15), the camera (52) is fixedly connected to the inner wall of the observation port (123), the camera (52) is used for shooting the capacitor, and the camera (52) is electrically connected to the controller (2).

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