Stress screening test box
By installing heating wires and LED light strips in the observation window of the stress screening test chamber, the problems of water mist and insufficient light are solved. By setting up water storage tanks and drainage pipes, the water drainage function is achieved, and the observation and adjustment capabilities of the test chamber are improved.
Patent Information
- Application Number
- CN202420697352.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-04-07
AI Technical Summary
When the stress screening test chamber alternates in the hot and cold environment, water mist is prone to appear on the observation window, which makes it impossible to observe the internal situation in time. At the same time, the internal light is insufficient, making it difficult to clearly see the internal situation.
A stress screening test chamber was designed. By installing heating wires and LED light strips in the observation window, the heating wires are used to reduce the generation of water mist, and internal lighting is provided through the LED light strips. At the same time, water storage tanks and drainage pipes are installed in the test chamber to achieve convenient drainage function.
It realizes the reduction of water mist generation when the hot and cold environments alternate, improves the visibility of the observation window, provides internal lighting, facilitates adjustment of test conditions, and quickly adjusts the humidity inside the test chamber through the convenient drainage function.
Smart Images
Figure CN222913763U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of test chambers, in particular to a stress screening test chamber. Background Art
[0002] A stress screening test chamber is a device for testing electronic products. Random vibration and temperature cycle stress are applied to electronic products to identify and eliminate early failures caused by product processes and components. This is a process or method that enables the detected electronic devices to promptly expose product process defects for timely handling. The stress screening test chamber simulates these environments to test electronic products.
[0003] When the stress screening test chamber tests an electronic device, the internal situation of the stress screening test chamber can be observed through the observation window on the test chamber. However, the alternating hot and cold environments easily cause water mist to form on the observation window, resulting in the inability to observe in a timely manner. Moreover, there is no light inside the stress screening test chamber, making it difficult to clearly see the internal situation. Therefore, we propose improvements to the stress screening test chamber for the above problems. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a stress screening test chamber to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A stress screening test chamber, including a test chamber body, one end of the test chamber body is equipped with a sealed door, an observation window is installed inside the sealed door, a heating wire is installed inside the observation window, a connecting wire is connected to the bottom end of the heating wire, and an LED light strip is installed at the other end of the observation window.
[0006] Preferably, the heating wire penetrates through the inside of the observation window, the LED light strip is attached to one end of the observation window, the LED light strip is in contact with the heating wire through the observation window, the observation window penetrates through the inside of the sealed door, and the connecting wire is connected to the heating wire.
[0007] Preferably, a control panel is inlaid at one end of the sealed door, a door handle is installed on one side of the sealed door, a temperature sensor is installed at the other end of the sealed door, and a humidity sensor is installed at the other end of the sealed door.
[0008] Preferably, an exhaust port is installed on one side of the test chamber body, a valve switch is provided at one end of the test chamber body, a coolant tank is provided at one end of the test chamber body, moving wheels are installed at the bottom of the test chamber body, a hot air port is installed inside the test chamber body, a cold air port is installed inside the test chamber body, and a sealing ring is provided at one end of the test chamber body.
[0009] Preferably, a clamping block is installed on the inner wall of the test box body, a stop block is installed inside the clamping block, a baffle is installed inside the clamping block, and a fixing frame is installed at one end of the baffle.
[0010] Preferably, the baffle passes through the inside of the test box body through the clamping block, the baffle is clamped with the clamping block through the stop block, the fixing frame covers the top end of the baffle and is connected to the inside of the test box body, and the clamping blocks are arranged at equal intervals on both sides of the inner wall of the test box body.
[0011] Preferably, a drain pipe is installed on one side of the test box body, a fixed suction cup is installed on the outside of the drain pipe, a water storage tank is connected to the top end of the drain pipe, and a barrier net is installed inside the water storage tank.
[0012] Preferably, the drain pipe passes through the test box body and is connected to the water storage tank, the drain pipe is connected to the test box body through a temperature sensor, the barrier net passes through the inside of the water storage tank, and the water storage tank passes through the inside of the test box body.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The stress screening test box not only realizes the function of convenient observation, the function of convenient adjustment, but also realizes the function of convenient drainage;
[0014] (1) By setting up a structure for convenient observation, the present utility model has the following advantages: During use, the observation window passes through the inside of the sealing door, the heating wire is energized through the connecting wire, the heating wire heats up and transfers the heat to the observation window outside the heating wire to reduce the generation of water mist, and the LED light strip at one end of the observation window is energized through the connecting wire at the bottom, so that the LED light strip takes pictures of the inside of the test box body, thereby realizing the function of convenient observation and facilitating the observation of the inside of the test box body through the observation window inside the sealing door;
[0015] (2) By setting up a structure for convenient adjustment, the present utility model has the following advantages: During use, the baffle at the bottom of the fixing frame is clamped inside the clamping block, the baffle passes through the inside of the clamping block through the stop block inside the clamping block, and the baffle is fixed inside the test box body. In this way, the cold and hot water vapor flows inside the test box body through the fixing frame at the top end of the baffle, thereby realizing the function of convenient adjustment, fixing the fixing frame inside the test box body, and facilitating the placement of electronic products on the fixing frame;
[0016] (3) By setting up a structure for convenient drainage, the present utility model has the following advantages: During use, when the hot air outlet and the cold air outlet inside the test box body alternate between hot and cold, the water vapor generated inside the test box body will flow into the water storage tank through the barrier net inside the water storage tank of the test box body, and then the drain pipe is removed from the outer wall of the test box body through the fixed suction cup, and the water inside the water storage tank is drained through the drain pipe, thereby realizing the function of convenient drainage and facilitating the rapid adjustment of the humidity inside the test box body, etc. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a front view structural schematic diagram of the present utility model;
[0018] Figure 2 is a front view expanded structural schematic diagram of the present utility model;
[0019] Figure 3 is a three - dimensional structural schematic diagram of the convenient observation structure of the present utility model;
[0020] Figure 4 is an enlarged structural schematic diagram of the convenient adjustment structure of the present utility model;
[0021] Figure 5 is an expanded structural schematic diagram of the convenient drainage structure of the present utility model.
[0022] In the figure: 1, sealing door; 2, control panel; 3, observation window; 4, door handle; 5, air outlet; 6, drain pipe; 7, valve body switch; 8, test chamber; 9, coolant tank; 10, moving wheel; 11, LED light strip; 12, connecting wire; 13, heating wire; 14, hot air outlet; 15, fixing bracket; 16, clamping block; 17, stop block; 18, cold air outlet; 19, sealing ring; 20, temperature sensor; 21, humidity sensor; 22, fixed suction cup; 23, water storage tank; 24, barrier net; 25, baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0024] Embodiment 1: Please refer to Figures 1-4 , a stress screening test chamber, including a test chamber 8, a sealing door 1 is installed at one end of the test chamber 8, an observation window 3 is installed inside the sealing door 1, a heating wire 13 is installed inside the observation window 3, a connecting wire 12 is connected to the bottom end of the heating wire 13, and an LED light strip 11 is installed at the other end of the observation window 3;
[0025] The heating wire 13 penetrates through the inside of the observation window 3, the LED light strip 11 is attached to one end of the observation window 3, the LED light strip 11 is in contact with the heating wire 13 through the observation window 3, the observation window 3 penetrates through the inside of the sealing door 1, and the connecting wire 12 is connected to the heating wire 13;
[0026] Specifically, as shown in Figure 1 andFigure 3 As shown in the figure, by setting up a structure convenient for observation, during use, the interior of the sealing door 1 is penetrated through the observation window 3, the heating wire 13 is energized through the connecting wire 12, and the heating wire 13 is heated to transfer heat to the observation window 3 outside the heating wire 13 to reduce the generation of water mist. The LED light strip 11 at one end of the observation window 3 is energized through the connecting wire 12 at the bottom, and the LED light strip 11 takes pictures of the interior of the test chamber 8, thus realizing the function of convenient observation.
[0027] Embodiment 2: The inner wall of the test chamber 8 is provided with a clamping block 16. Inside the clamping block 16, a stopper 17 is installed. Inside the clamping block 16, a baffle 25 is installed. One end of the baffle 25 is provided with a fixing frame 15;
[0028] The baffle 25 penetrates through the interior of the test chamber 8 through the clamping block 16. The baffle 25 is clamped with the clamping block 16 through the stopper 17. The fixing frame 15 covers the top end of the baffle 25 and is connected to the interior of the test chamber 8. The clamping blocks 16 are arranged at equal intervals on both sides of the inner wall of the test chamber 8;
[0029] Specifically, as Figure 2 and Figure 4 shown, by setting up a structure convenient for adjustment, during use, the baffle 25 at the bottom of the fixing frame 15 is clamped inside the clamping block 16. The baffle 25 penetrates through the inside of the clamping block 16 through the stopper 17 inside the clamping block 16, and the baffle 25 is fixed to the inside of the test chamber 8. In this way, the cold and hot water vapor flows inside the test chamber 8 through the fixing frame 15 at the top end of the baffle 25, thus realizing the function of convenient adjustment.
[0030] Embodiment 3: A drain pipe 6 is installed on one side of the test chamber 8. Outside the drain pipe 6, a fixed suction cup 22 is installed. The top end of the drain pipe 6 is connected to a water storage tank 23. Inside the water storage tank 23, a barrier net 24 is installed;
[0031] The drain pipe 6 penetrates through the test chamber 8 and is connected to the water storage tank 23. The drain pipe 6 is connected to the test chamber 8 through a temperature sensor 20. The barrier net 24 penetrates through the inside of the water storage tank 23. The water storage tank 23 penetrates through the inside of the test chamber 8;
[0032] Specifically, as Figure 1 and Figure 5 shown, by setting up a structure convenient for drainage, during use, when the hot air outlet 14 and the cold air outlet 18 inside the test chamber 8 alternate between hot and cold, the water vapor generated inside the test chamber 8 will flow into the water storage tank 23 through the barrier net 24 inside the water storage tank 23 of the test chamber 8. Then, the drain pipe 6 is removed from the outer wall of the test chamber 8 through the fixed suction cup 22, and the water inside the water storage tank 23 is drained through the drain pipe 6, thus realizing the function of convenient drainage.
[0033] Working principle: When the utility model is in use, first open the sealing door 1 at one end of the test box body 8 by turning the door handle 4. After the baffle 25 is snapped into the inside of the snap-in block 16 through the stopper 17 inside the snap-in block 16, place the electronic product to be tested on the fixing rack 15 at the top of the baffle 25. Then make the sealing door 1 contact the sealing ring 19 at one end of the test box body 8 to seal the inside of the test box body 8. After that, start the inside of the test box body 8 by adjusting the control panel 2 at one end of the sealing door 1, so that the hot air outlet 14 inside blows hot air and the cold air outlet 18 discharges cold air to conduct a heat and cold cycle test on the electronic products inside the test box body 8. Then heat through the heating wire 13 inside the observation window 3 at one end of the test box body 8 to keep the observation window 3 warm and not prone to fogging. The LED light strip 11 at one end of the observation window 3 can also be lit to illuminate the inside of the test box body 8. Finally, detect the inside of the test box body 8 through the temperature sensor 20 and humidity sensor 21 on the sealing door 1. The water vapor generated by the heat and cold cycle of the test box body 8 will condense into water droplets and drip into the water storage tank 23 inside the test box body 8. Then separate the drain pipe 6 outside the test box body 8 from the test box body 8 through the fixed suction cup 22, and lower the drain pipe 6 to drain the water inside the water storage tank 23.
[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
Claims
1. A stress screening test chamber, comprising a test chamber (8), characterized in that: A sealed door (1) is installed at one end of the test box (8), an observation window (3) is installed inside the sealed door (1), a heating wire (13) is installed inside the observation window (3), a connecting wire (12) is connected to the bottom end of the heating wire (13), and an LED light bar (11) is installed at the other end of the observation window (3).
2. The stress screening test box according to claim 1, characterized in that: The heating wire (13) passes through the interior of the observation window (3); the LED light bar (11) is attached to one end of the observation window (3); the LED light bar (11) contacts the heating wire (13) through the observation window (3); the observation window (3) passes through the interior of the sealed door (1); and the connecting wire (12) is connected to the heating wire (13).
3. The stress screening test box according to claim 1, characterized in that: A control panel (2) is inlaid on one end of the sealed door (1), a door handle (4) is installed on one side of the sealed door (1), a temperature sensor (20) is installed on the other end of the sealed door (1), and a humidity sensor (21) is installed on the other end of the sealed door (1).
4. The stress screening test box according to claim 1, characterized in that: An exhaust port (5) is installed on one side of the test box (8), a valve switch (7) is installed on one end of the test box (8), a cooling liquid tank (9) is installed on one end of the test box (8), a moving wheel (10) is installed on the bottom of the test box (8), a hot air port (14) is installed inside the test box (8), a cold air port (18) is installed inside the test box (8), and a sealing ring (19) is installed on one end of the test box (8).
5. The stress screening test box according to claim 1, characterized in that: A clamping block (16) is installed on the inner wall of the test box (8), a stopper (17) is installed inside the clamping block (16), a baffle (25) is installed inside the clamping block (16), and a fixing frame (15) is installed at one end of the baffle (25).
6. The stress screening test box according to claim 5, characterized in that: The baffle (25) passes through the interior of the test box (8) through a clamping block (16); the baffle (25) is clamped with the clamping block (16) through a baffle (17); the top end of the fixing frame (15) covering the baffle (25) is connected to the interior of the test box (8); and the clamping blocks (16) are arranged at equal intervals on both sides of the inner wall of the test box (8).
7. The stress screening test box according to claim 1, characterized in that: A drainage pipe (6) is installed on one side of the test box (8), a fixed suction cup (22) is installed outside the drainage pipe (6), the top end of the drainage pipe (6) is connected to a water storage tank (23), and a barrier net (24) is installed inside the water storage tank (23).
8. The stress screening test box according to claim 7, characterized in that: The drainage pipe (6) passes through the test box (8) and is connected to the water storage tank (23); the drainage pipe (6) is connected to the test box (8) via a temperature sensor (20); the barrier net (24) passes through the interior of the water storage tank (23); and the water storage tank (23) passes through the interior of the test box (8).