CN-121995125-A - Temperature and humidity detection system of test box and test box

CN121995125ACN 121995125 ACN121995125 ACN 121995125ACN-121995125-A

Abstract

The application discloses a temperature and humidity detection system of a test box and the test box, wherein the temperature and humidity detection system comprises a position detection device, a distance detection device, a temperature and humidity detection device and a controller, the position detection device is used for acquiring position information of a plane sample of a test article placed on a grating disk, the distance detection device is used for acquiring height information of the test article in the box, the temperature and humidity detection device comprises a first moving mechanism connected to the box, the first moving mechanism is used for receiving a moving instruction and then controlling the temperature and humidity detection device to move to a preset height above the test article, the controller is used for receiving the position information and the height information of the plane sample, generating and outputting a temperature and humidity detection instruction according to the position information of the plane sample, and the temperature and humidity detection device is used for detecting the temperature and humidity information of the corresponding plane position and transmitting the temperature and humidity information to the controller after receiving the temperature and humidity detection instruction. The method and the device can improve accuracy of acquiring temperature and humidity information.

Inventors

WANG DONGLIANG

Assignees

富泰华工业（深圳）有限公司
鸿海精密工业股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241029

Claims (10)

1. The temperature and humidity detection system of the test box is characterized by comprising a position detection device, a distance detection device, a temperature and humidity detection device and a controller; The position detection device is arranged on a grating disk in the test box and is used for acquiring the position information of a plane sample of a test article placed on the grating disk; the distance detection device is used for acquiring the height information of the test article in the box body; The temperature and humidity detection device is arranged above the grid plate and comprises a first moving mechanism connected to the box body, and the first moving mechanism is used for controlling the temperature and humidity detection device to move to a preset height above the test article after receiving a moving instruction; The controller is used for receiving the position information and the height information of the planar sample, generating and outputting a temperature and humidity detection instruction according to the position information of the planar sample, and generating and outputting the movement instruction according to the height information; and the temperature and humidity detection device is used for detecting temperature and humidity information below the corresponding plane position after receiving the temperature and humidity detection instruction, and transmitting the temperature and humidity information to the controller.
2. The temperature and humidity detection system of claim 1 wherein the distance detection device comprises a light source emitter, a light source receiver, a second movement mechanism, and a third movement mechanism; The light source emitter is arranged on the second moving mechanism, the light source receiver is arranged on the third moving mechanism, and the second moving mechanism and the third moving mechanism are oppositely arranged on the box body and are parallel; The controller is further used for controlling the second moving mechanism and the third moving mechanism to enable the light source emitter and the light source receiver to move upwards from the horizontal plane of the grating disk, and the height information is determined by detecting the light beam emitting quantity of the light source emitter and the light beam receiving quantity information of the light source receiver.
3. The temperature and humidity detection system of claim 2 wherein the controller is further configured to control the second and third movement mechanisms to move the light source emitter and the light source receiver to a level of the grating disk in response to the position detection device determining that the grating disk is placed in the test article.
4. The temperature and humidity detection system of claim 1, wherein the temperature and humidity detection device comprises a mesh sampling pipe, an air compressor, and a temperature and humidity detector; the wind pressure machine is respectively connected with the reticular sampling pipeline and the temperature and humidity detector, and the reticular sampling pipeline is provided with a plurality of sampling holes; the controller is also used for controlling the wind pressure machine to extract the gas above the test article from the reticular sampling pipeline and transmit the gas to the temperature and humidity detector so as to acquire the temperature and humidity information of the temperature and humidity detector.
5. The temperature and humidity detection system of claim 4, wherein the pipeline nodes of the mesh sampling pipeline are provided with electronic valves; the controller is also used for controlling the electronic valve above the test article to open according to the plane sample position information so as to control the sampling Kong Caiji gas above the test article.
6. The temperature and humidity sensing system of claim 4 wherein said mesh sampling tube comprises a plurality of wave-like subducting.
7. The temperature and humidity sensing system of claim 4 wherein said temperature and humidity sensing device further comprises a circulation conduit; The circulating pipeline is connected with the cavity of the temperature and humidity detector and is used for discharging the gas detected by the temperature and humidity detector back into the test box.
8. The temperature and humidity sensing system of claim 1 wherein said position sensing means comprises an array of pressure sensors; The controller is also used for receiving pressure array information of the pressure sensor array and determining the position information of the plane sample according to the pressure array information.
9. A test chamber comprising a temperature and humidity control system and a temperature and humidity detection system according to any one of claims 1 to 8; The temperature and humidity control system is used for receiving temperature and humidity information output by the temperature and humidity detection system and controlling the temperature and humidity value in the test box to be kept in a preset range.
10. The test chamber of claim 9, further comprising a sample placement system comprising an image acquisition device, a robotic arm, and a robotic arm controller; The image acquisition device is arranged above a grid plate or at the cavity wall in the test box, is used for acquiring images for placing the test article and is transmitted to the mechanical arm controller; The mechanical arm controller is used for receiving the image and controlling the mechanical arm to place the test article to the grid tray according to the image and a preset motion track.

Description

Temperature and humidity detection system of test box and test box Technical Field The application relates to the technical field of product testing, in particular to a temperature and humidity detection system of a test box and the test box. Background At present, reliability tests are carried out on electronic products before leaving factories, wherein the most common and most effective test is a temperature and humidity test for simulating environmental conditions. For example, a sample to be tested is placed in a temperature and humidity test box to be tested according to a preset temperature and humidity curve. In the whole operation stage, the hygrothermograph is generally arranged at a fixed position of the test box, and the temperature and humidity parameter analog quantity is sensed, so that the temperature and humidity in the test box are regulated to be stable at a required value of the test. However, because a certain space distance exists between the sample actually positioned on the grid plate of the test box and the hygrothermograph at the fixed position, errors can be generated due to the fact that the temperature and humidity analog quantity is influenced by irrelevant materials in an air conduction path, for example, the side wall of the test box or the grid plate absorbs energy to generate loss, or an air flow loop enables the temperature and humidity analog quantity to flow to other positions on the surface of a non-sample, and because the input quantity and the position of the sample are dynamically changed each time, a certain error exists in the detection of the temperature and the humidity of the surface of the sample. Disclosure of Invention In view of the above, the application provides a temperature and humidity detection system of a test box and the test box, which are used for improving the accuracy of acquiring temperature and humidity information of a test article. The technical scheme of the application is as follows: the temperature and humidity detection system of the test box comprises a position detection device, a distance detection device, a temperature and humidity detection device and a controller, wherein the position detection device is arranged on a grating disk in the test box and is used for acquiring position information of a plane sample of the test product placed on the grating disk, the distance detection device is used for acquiring height information of the test product in the box, the temperature and humidity detection device is arranged above the grating disk and comprises a first moving mechanism connected to the box, the first moving mechanism is used for receiving a moving instruction and then controlling the temperature and humidity detection device to move to a preset height above the test product, the controller is used for receiving the position information of the plane sample and the height information, generating and outputting a temperature and humidity detection instruction according to the position information of the plane sample, generating and outputting a moving instruction according to the height information, and detecting temperature and humidity information below a corresponding plane position after receiving the temperature and humidity detection instruction and transmitting the temperature and humidity information to the controller. In an embodiment of the application, the distance detection device comprises a light source emitter, a light source receiver, a second moving mechanism and a third moving mechanism, wherein the light source emitter is arranged on the second moving mechanism, the light source receiver is arranged on the third moving mechanism, the second moving mechanism and the third moving mechanism are oppositely arranged on the box body and are parallel, the controller is further used for controlling the second moving mechanism and the third moving mechanism to enable the light source emitter and the light source receiver to move upwards from the horizontal plane of the grating disk, and the height information is determined by detecting the light beam emission quantity of the light source emitter and the light beam receiving quantity information of the light source receiver. In an embodiment of the present application, the controller is further configured to control the second moving mechanism and the third moving mechanism to move the light source emitter and the light source receiver to a horizontal plane of the grating disk in response to the position detection device determining that the grating disk is placed with the test article. In an embodiment of the application, the temperature and humidity detection device comprises a mesh sampling pipeline, an air compressor and a temperature and humidity detector, wherein the air compressor is respectively connected with the mesh sampling pipeline and the temperature and humidity detector, the mesh sampling pipeline is provided with a plurality of sampling holes, and the co