Power-on aging oven for dimming film

Abstract

The invention belongs to the technical field of dimming film testing, and particularly relates to a power-on aging oven for a dimming film, which comprises an aging test box body, a temperature and humidity control box is installed on the right side face in the aging test box body, a control assembly is installed on the front face of the temperature and humidity control box, a sealing door is hinged to the front face of the aging test box body, and transparent observation windows are installed on the side face of the aging test box body and in the sealing door; according to the invention, the rear end of the electrode plate is forced to naturally suspend and tilt by using the lever principle, so that the electrode plate is smoothly guided to be inserted into the bayonet of the jointing clamp, then the jointing clamp tightly clamps the upper and lower sides of the electrode plate, and the clamping mode of multi-point contact is strong in locking force; the phenomena of contact resistance fluctuation and open circuit caused by equipment vibration or electrode displacement are effectively avoided, and the electrical connection stability of the dimming film in the power-on aging process is remarkably improved, so that the accuracy and reliability of test data are ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of light control film testing, and particularly relates to a power-on aging box for light control film. BACKGROUND

[0002] The light control film is an electronic light control product, liquid crystal polymer mixed materials are injected between two transparent conductive films, and the transparent and opaque switching of the light control film is realized through electric control. In the production and processing of the light control film, the light control film needs to be subjected to aging test. The power-on aging test is used to verify the performance stability of the light control film under extreme conditions such as high temperature, low temperature and high humidity, so as to ensure that the light control film can work normally in actual application. Through the accelerated aging test, the actual service life of the light control film is predicted, and reasonable use expectations are provided for manufacturers and users. Potential defects of the light control film, such as thermal runaway, light decay and haze change, are found in time so as to be improved. Through the standardized test process, the quality of each batch of light control film products is ensured to meet the predetermined standard.

[0003] In the aging test process of the light control film, the prior art usually adopts a power-on thimble to abut against the electrode sheet of the light control film to realize electrical connection and power supply. However, this contact mode has obvious limitations. First, since the contact area between the thimble and the electrode sheet of the light control film is small, it is a point contact or a line contact, and it is difficult to ensure complete and close adhesion to the electrode surface. Local contact failure is easily caused due to insufficient adhesion. Secondly, in the long-term test process, mechanical vibration generated by equipment operation or thermal expansion and contraction and slight position change of the light control film itself can easily cause relative displacement of the power-on thimble. This displacement can cause unexpected increase of contact resistance, which not only can cause local heating, but also can seriously affect the stability and data accuracy of the power-on aging test, and cannot objectively reflect the real performance of the light control film. Therefore, a power-on aging box for light control film is needed to solve the above problems. SUMMARY

[0004] In order to make up for the shortcomings of the prior art, the application provides a power-on aging box for light control film. The application is mainly used to solve the problem that the electrode sheet of the light control film completes power-on through the thimble, and the thimble and the electrode sheet cannot be fully contacted, which causes displacement or resistance to increase, and affects the test results of the light control film power-on aging.

[0005] The technical solution adopted by this invention to solve its technical problem is: an electrically powered aging chamber for a dimming film, comprising an aging test chamber body; a temperature and humidity control box is installed on the right side of the aging test chamber body, a control component is installed on the front of the temperature and humidity control box, a sealed door is hinged to the front of the aging test chamber body, transparent observation windows are installed on the sides of the aging test chamber body and inside the sealed door, several support plates are installed inside the aging test chamber body, a placement plate is provided on the support plate, a dimming film is provided on the placement plate, two electrode plates are connected to the back of the dimming film, and the back of the placement plate... Two extension frames are installed on the surface, and two sliding grooves are opened in the extension frames. Sliding blocks are slidably connected in the sliding grooves. Push frames are installed outside the sliding blocks. A first spring is installed under the sliding blocks and installed on the inner wall of the sliding grooves. The electrode sheet is located on the push frame. Two extrusion rods are installed on the support plate at positions corresponding to the push frame. The rear half of the lower surface of the push frame is set in an inclined shape. Two first fixing seats are installed on the placement plate. A wire clamp is installed on the fixing seat. A wire terminal plate is installed on the placement plate. The wire terminal plate is electrically connected to the wire clamp.

[0006] As a further description of the above technical solution: the two push frames are connected by an air blowing pipe on their sides, the back of the push frame is provided with a lower air outlet, and the side of the push frame is provided with an upper air outlet. The upper air outlet and the lower air outlet are respectively located on the upper and lower sides of the electrode sheet.

[0007] As a further description of the above technical solution: the upper vent is inclined backward along the direction of the electrode sheet, and the lower vent is inclined upward.

[0008] As a further description of the above technical solution: the wiring clamp includes a movable plate and a fixed plate. The fixed plate is fixedly installed on a fixed base. A first conductive sheet is installed under the movable plate. A second conductive sheet is installed on the fixed plate. The first conductive sheet and the second conductive sheet are hinged together by a pin. A second spring is installed on the fixed base. The second spring is fixedly connected to the lower part of the movable plate. An electric push rod is provided under the movable plate. The electric push rod is installed through the fixed plate.

[0009] As a further description of the above technical solution: an electric slide rail is installed inside the support plate, an electric slider is installed inside the electric slide rail, and the electric slider is installed under the placement plate.

[0010] As a further description of the above technical solution: a first air chamber is provided in the movable plate, a second air chamber is provided in the fixed plate, an air inlet pipe is connected to the movable plate and the air inlet pipe is connected to the first air chamber, an air outlet pipe is connected to the side of the fixed plate, and an extension pipe is connected to the side of the movable plate and the fixed plate respectively, and a flexible hose is connected between the two extension pipes.

[0011] As a further description of the above technical solution: a photoelectric sensor is installed under the fixed plate, and the photoelectric sensor is electrically connected to the control component.

[0012] As a further description of the above technical solution: an insulating pad is installed on the upper surface of the push frame, and the insulating pad is made of ethylene propylene rubber.

[0013] As a further description of the above technical solution: the lower surface of the push frame is provided with a contact layer, and the contact layer is made of Teflon.

[0014] As a further description of the above technical solution: the movable plate and the fixed plate are made of thermally conductive and insulating material, specifically polyphenylene sulfide.

[0015] The beneficial effects of this invention are as follows: 1. In this invention, through ingenious mechanical linkage design, automatic positioning and stable clamping of the dimming film electrode sheet are achieved, effectively solving the problem of poor contact in traditional testing. Specifically, the device uses the horizontal backward movement of the placement plate as the driving force, and through the cooperation of the squeezing rod and the pushing frame, the linear motion is converted into vertical lifting motion; the pushing frame pushes upward from the middle of the electrode sheet, and uses the lever principle to force the rear end of the electrode sheet to naturally suspend and tilt upward, thereby smoothly guiding it into the bayonet of the wiring clamp. Subsequently, the wiring clamp tightly clamps the electrode sheet from both the top and bottom. This multi-point contact clamping method has strong locking force, effectively avoiding contact resistance fluctuations and open circuits caused by equipment vibration or electrode displacement, significantly improving the electrical connection stability of the dimming film during the aging process, thereby ensuring the accuracy and reliability of the test data.

[0016] 2. In this invention, by integrating an automatic cleaning function during the clamping process, the problem of testing errors caused by residual debris on the electrode surface is effectively solved. Addressing the issues of debris and environmental dust adhesion generated during the cutting and grinding process of the dimming film, the device cleverly utilizes the lifting action of the push frame in conjunction with the fan for control. When the push frame is squeezed and lifted to guide the electrode insertion, the control component simultaneously starts the fan, drawing in air from the chamber and ejecting it at high speed through the upper and lower air outlets of the push frame, forming a bidirectional airflow impact on the upper and lower surfaces of the electrode. This design can quickly and thoroughly blow off the adhering debris just before the electrode is connected to the wiring clamp, ensuring that the surface of the electrode entering the clamping position is clean and free of foreign objects. By eliminating the influence of debris as an insulating medium, the contact resistance is significantly reduced, avoiding poor contact or arcing during power-on, thereby ensuring the stability of the dimming film's power-on process and the accuracy of aging test data.

[0017] 3. In this invention, by constructing an internal gas circulation cooling circuit, the problem of electrode overheating and the impact of ambient temperature rise on test accuracy during frequent power-on / off testing is effectively solved. During the power-on aging test of the dimming film, the surge current generated by frequent power-on / off switching will cause instantaneous high temperatures at the electrode contact points. If heat accumulates, it will not only damage the electrodes but also cause the ambient temperature inside the chamber to rise, interfering with the test results. To address this, the device uses a built-in circulating fan to drive the air inside the chamber, allowing it to flow sequentially through the air inlet pipe, the first air chamber, the extension pipe, the hose, and the second air chamber to form a closed-loop flow path. When the circulating airflow passes through the contact area between the first conductive sheet, the second conductive sheet, and the electrode sheet, it can quickly absorb and carry away the local heat generated by the contact resistance and surge current, actively cooling the surface of the electrode sheet. This design not only avoids poor contact due to high-temperature oxidation of the electrodes but also inhibits the disorderly diffusion of heat into the test environment, thereby ensuring a constant temperature inside the aging test chamber and significantly improving the safety, stability, and data accuracy of the power-on aging test of the dimming film. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the aging test chamber in this invention; Figure 3 This is a three-dimensional structural diagram of the support plate in this invention; Figure 4 In this invention Figure 3 Enlarged structural diagram of section A; Figure 5 This is a schematic diagram of the three-dimensional structure of the dimming film in this invention; Figure 6 This is a schematic diagram of the separate three-dimensional structure of the placement plate and the support plate in this invention, viewed from below. Figure 7 This is a schematic diagram of the side cross-sectional structure of the placement plate in this invention; Figure 8 In this invention Figure 7 Enlarged structural diagram of section B; Figure 9 This is a schematic diagram of the three-dimensional cross-sectional structure of the extension frame in this invention; Figure 10 This is a schematic diagram of the three-dimensional cross-sectional structure of the movable plate in this invention; In the diagram: 1. Aging test chamber; 2. Temperature and humidity control box; 3. Control components; 4. Sealed door; 5. Transparent observation window; 6. Support plate; 7. Placement plate; 8. Dimming film; 9. Electric slide rail; 10. Electric slider; 11. Electrode plate; 12. Extension frame; 13. Push frame; 14. Sliding groove; 15. Sliding block; 16. First spring; 17. Extrusion rod; 18. Upper air outlet; 19. Lower air outlet; 20. Air blowing pipe; 21. Wiring clamp; 211. Movable plate; 212. First conductive sheet; 213. Second conductive sheet; 214. Fixing plate; 215. Electric push rod; 216. Second spring; 22. Fixing base; 23. Wiring terminal plate; 24. Photoelectric sensor; 25. First air chamber; 26. Second air chamber; 27. Extension tube; 28. Flexible hose; 29. ​​Air inlet pipe; 30. Air outlet pipe. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] like Figures 1 to 10 As shown, an aging chamber for a dimming film includes an aging test chamber 1; a temperature and humidity control box 2 is installed on the right side of the aging test chamber 1, a control component 3 is installed on the front of the temperature and humidity control box 2, a sealing door 4 is hinged to the front of the aging test chamber 1, transparent observation windows 5 are installed on the sides of the aging test chamber 1 and inside the sealing door 4, several support plates 6 are installed inside the aging test chamber 1, a placement plate 7 is provided on the support plate 6, a dimming film 8 is provided on the placement plate 7, two electrode plates 11 are connected to the back of the dimming film 8, and two extension frames 12 are installed on the back of the placement plate 7, with openings inside the extension frames 12. Two sliding grooves 14 are provided, and a sliding block 15 is slidably connected in the sliding groove 14. A push frame 13 is installed outside the sliding block 15. A first spring 16 is installed under the sliding block 15 and installed on the inner wall of the sliding groove 14. The electrode plate 11 is located on the push frame 13. Two extrusion rods 17 are installed on the support plate 6 at the position corresponding to the push frame 13. The rear half of the lower surface of the push frame 13 is set in an inclined shape. Two first fixing seats 22 are installed on the placement plate 7. A wire clamp 21 is installed on the fixing seat 22. A wire terminal plate 23 is installed on the placement plate 7. The wire terminal plate 23 is electrically connected to the wire clamp 21.

[0022] During the power-on aging test, the dimming film 8 is placed directly on the placement plate 7, with the electrode sheet 11 placed on the extension frame 12. Then, the placement plate 7 is moved backward, causing the extension frame 12, the push frame 13, and the placement plate 7 to move backward. As the push frame 13 moves backward, it is squeezed by the squeezing rod 17, which in turn squeezes the push frame 13 upward, pushing it upward from the middle part of the electrode sheet 11. This causes the rear end of the electrode sheet 11 to be suspended and tilted upward, allowing the electrode sheet 11 to be smoothly inserted into the wiring clamp 21. The wiring clamp 21 holds the electrode sheet 11 on both the upper and lower sides, ensuring stable clamping of the electrode sheet 11. This ensures the stability of the power-on process of the dimming film 8 and prevents poor contact and disconnection during power-on, thus ensuring the accurate and stable conduct of the power-on aging test of the dimming film 8.

[0023] like Figures 7 to 9 As shown: A blowing pipe 20 is connected to the side of the two push frames 13. A lower air outlet 19 is opened on the back of the push frame 13, and an upper air outlet 18 is opened on the side of the push frame 13. The upper air outlet 18 and the lower air outlet 19 are located on the upper and lower sides of the electrode plate 11, respectively.

[0024] During the production of the dimming film 8, debris may be generated due to processes such as cutting and grinding. This debris may remain on the surface of the electrode sheet 11. Dust in the production environment may also adhere to the electrode sheet 11. Dust, debris, and other impurities have a certain resistance. When they adhere to the surface of the electrode sheet 11, they increase the contact resistance between the electrode sheet 11 and the connecting device, resulting in unstable current transmission and affecting the accuracy of the aging test. The air pipe 20 is directly connected to an external fan, and the fan is located inside the aging test chamber 1. When the placement plate 7 moves backward and the push frame 13 is squeezed and lifted upward, the fan is controlled by the control component 3. The fan draws air from the aging test chamber 1 into the push frame 13, causing the air in the push frame 13 to be blown out through the upper air outlet 18 and the lower air outlet 19. The air blown out from the upper air outlet 18 and the lower air outlet 19 acts on the upper and lower sides of the electrode plate 11, causing the airflow to blow off the debris adhering to the electrode plate 11. The cleaned electrode plate 11 is then moved into the wiring clamp 21, ensuring that no debris is trapped in the contact part when the wiring clamp 21 holds the electrode plate 11 and energizes it, ensuring that the energizing process is smooth and stable, and thus ensuring the accuracy of the aging test of the dimming film 8.

[0025] like Figure 8 and Figure 9 As shown: the upper vent 18 is inclined backward along the direction of the electrode plate 11, and the lower vent 19 is inclined upward.

[0026] The upper air outlet 18 is tilted along the direction of the electrode plate 11, blowing airflow onto the upper surface of the electrode plate 11, while the lower air outlet 19 is tilted upwards, blowing airflow onto the lower surface of the electrode plate 11. This makes the impact force of the tilted airflow on the surface of the electrode plate 11 greater, further enhancing the cleaning effect of the airflow on the surface of the electrode plate 11, thus ensuring that the surface of the electrode plate 11 is in a clean state for the electrical test, and further ensuring the accuracy of the test results.

[0027] like Figure 9 As shown: The wiring clamp 21 includes a movable plate 211 and a fixed plate 214. The fixed plate 214 is fixedly installed on the fixed base 22. A first conductive sheet 212 is installed under the movable plate 211, and a second conductive sheet 213 is installed on the fixed plate 214. The first conductive sheet 212 and the second conductive sheet 213 are hinged together by a pin. A second spring 216 is installed on the fixed base 22 and is fixedly connected to the lower part of the movable plate 211. An electric push rod 215 is provided under the movable plate 211 and is installed through the fixed plate 214.

[0028] When the placement plate 7 and the dimming film 8 move backward, the electrode sheet 11 moves backward into the wiring clamp 21. At this time, the electric push rod 215 is extended by the control component 3, which drives the movable plate 211 to rotate around the pin shaft. This causes the first conductive sheet 212 to be clamped downward onto the surface of the electrode sheet 11. The clamping method of the first conductive sheet 212 and the second conductive sheet 213 adhering to the surface of the electrode sheet 11 ensures stable clamping of the electrode sheet 11. Compared with the contact area of ​​the pin contact, the contact area is larger, ensuring higher clamping and power-on stability of the electrode sheet 11. The first conductive sheet 212 and the second conductive sheet 213 can be tightly adhered to the surface of the electrode sheet 11, reducing resistance changes caused by poor contact. This allows the current to pass through the dimming film 8 stably, ensuring the stable conduction of the power-on aging test of the dimming film 8 and ensuring the accuracy of the aging test. After the dimming film 8 completes the power-on aging test, it needs to be removed. Then, the electric push rod 215 is shortened by the control component 3. At this time, the second spring 216 uses its elasticity to control the movable plate 211 to rotate around the pin shaft. At this time, the first conductive sheet 212 rotates away from the electrode sheet 11, thereby realizing the automatic disconnection process from the electrode sheet 11. The degree of automation is higher, and the power-on and power-off process is more precise and efficient.

[0029] like Figure 3 and Figure 6 As shown: An electric slide rail 9 is installed inside the support plate 6, and an electric slider 10 is installed inside the electric slide rail 9. The electric slider 10 is installed under the placement plate 7.

[0030] Using an electric slide rail 9 and an electric slider 10, when the placement plate 7 and the dimming film 8 need to be moved backward for the dimming film 8 aging test, the control component 3 controls the operation of the electric slide rail 9, which in turn controls the electric slider 10 and the moving plate to move backward. When the dimming film 8 has completed the power-on aging test and needs to be removed forward, the control component 3 controls the operation of the electric slide rail 9, which in turn controls the electric slider 10 and the placement plate 7 to move forward. This makes the movement of the dimming film 8 more precise and efficient, thereby ensuring that the removal and placement of the dimming film 8 is more accurate and convenient, and thus ensuring that the aging test of the dimming film 8 is carried out efficiently.

[0031] like Figure 10 As shown: A first air chamber 25 is provided in the movable plate 211, and a second air chamber 26 is provided in the fixed plate 214. An air inlet pipe 29 is connected to the movable plate 211 and communicates with the first air chamber 25. An air outlet pipe 30 is connected to the side of the fixed plate 214. An extension pipe 27 is connected to the side of the movable plate 211 and the fixed plate 214 respectively. A flexible hose 28 is connected between the two extension pipes 27.

[0032] When the conventional electrode 11 is energized and the energization aging test is performed, the dimming film 8 is frequently energized and de-energized. During the energization aging test, a surge current much larger than the normal operating current will flow to the electrode when the power is turned on momentarily. If the power is turned on and off frequently, the electrode will be subjected to this high-intensity instantaneous impact current. At that moment, the local heat generated at the interface was very large, causing the heat to dissipate into the aging test environment, resulting in an increase in the aging test temperature and affecting the accuracy of the test. The air outlet pipe 30 and the air inlet pipe 29 are connected to the air inlet and air outlet of the circulating fan, respectively. The circulating fan is located inside the aging test chamber 1. The air in the aging test chamber 1 is drawn in and injected into the first air chamber 25 through the air inlet pipe 29. Then, the gas in the first air chamber 25 flows into the second air chamber 26 through the extension pipe 27 and the hose 28. Finally, the gas in the second air chamber 26 flows back to the circulating fan through the air outlet pipe 30. The circulating gas absorbs and circulates the heat generated at the contact point between the first conductive sheet 212, the second conductive sheet 213 and the electrode sheet 11, and cools down the high temperature generated on the surface of the electrode sheet 11. This ensures that the electrode sheet 11 will not overheat due to frequent power switching, thus ensuring higher safety of the power contact at the electrode sheet 11 and ensuring the safety performance of the power-on aging test process of the dimming film 8.

[0033] like Figure 10 As shown: A photoelectric sensor 24 is installed under the fixed plate 214, and the photoelectric sensor 24 is electrically connected to the control component 3.

[0034] When the dimming film 8 undergoes an aging test, it is placed directly on the placement plate 7. At this time, the electrode sheet 11 is placed on the extension frame 12. Then, the electric slide rail 9 is controlled by the control component 3. The electric slide rail 9 drives the electric slider 10 and the placement plate 7 to move backward, thereby causing the extension frame 12, the push frame 13, and the placement plate 7 to move backward. When the push frame 13 moves backward, it is squeezed by the pressing rod 17. At this time, the pressing rod 17 squeezes the push frame 13 upward, thereby pushing the push frame 13 upward from the middle part of the electrode sheet 11, thus causing the rear end of the electrode sheet 11 to be suspended and tilted, allowing the electrode sheet 11 to be smoothly inserted into the wiring clamp 21. The photoelectric sensor 24 detects this. When the electrode piece 11 is inserted into the wiring clamp 21, the electric push rod 215 is extended, which pushes the movable plate 211 to rotate, thereby causing the first conductive plate 212 to hold the electrode piece 11 and complete the power supply of the dimming film 8. If the photoelectric sensor 24 does not detect the electrode piece 11, it means that the electrode piece 11 is bent or not in place, and the electrode piece 11 is not inserted into the wiring clamp 21. At this time, the control component 3 controls the alarm to sound an alarm. It can automatically detect the movement position of the electrode piece 11 and determine whether the electrode piece 11 is accurately inserted into the wiring clamp 21, so as to ensure accurate power supply during the power supply aging detection process of the dimming film 8.

[0035] like Figure 9 As shown: An insulating pad is installed on the upper surface of the push frame 13. The insulating pad is made of ethylene propylene rubber.

[0036] Ethylene propylene rubber is used to separate the electrode sheet 11 from the push frame 13. The ethylene propylene rubber is soft, which reduces the wear of the electrode sheet 11 when it is pushed, thereby ensuring the insulation effect and service life of the electrode sheet 11 when it is pushed.

[0037] like Figure 8 As shown: The lower surface of the push frame 13 is provided with a contact layer, which is made of Teflon.

[0038] The use of a Teflon layer reduces the friction between the extrusion rod 17 and the push frame 13, resulting in less resistance between the push frame 13 and the extrusion rod 17. This reduces the power required to move the placement plate 7 and the current required by the electric push rod 215, thus ensuring that the electric push rod 215 requires less energy to operate and achieves a more ideal energy-saving effect.

[0039] like Figure 9 As shown: the movable plate 211 and the fixed plate 214 are made of thermally conductive and insulating material, specifically polyphenylene sulfide.

[0040] The use of polyphenylene sulfide improves the thermal conductivity of the movable plate 211 and the fixed plate 214, ensuring higher heat transfer efficiency between the first conductive sheet 212, the second conductive sheet 213 and the electrode sheet 11. This increases the cooling efficiency between the electrode sheet 11 and the first conductive sheet 212 and the second conductive sheet 213, ensuring faster heat dissipation and cooling of the electrode sheet 11. It also reduces the probability of short circuit due to high temperature, enabling the dimming film 8 to be accurately and stably tested during aging.

[0041] During operation, when the dimming film 8 undergoes an electrical aging test, it is placed directly on the placement plate 7. At this time, the electrode sheet 11 is placed on the extension frame 12. Then, the control component 3 controls the operation of the electric slide rail 9. The electric slide rail 9 drives the electric slider 10 and the placement plate 7 to move backward, thereby causing the extension frame 12, the push frame 13, and the placement plate 7 to move backward. When the push frame 13 moves backward, it is squeezed by the pressing rod 17. At this time, the pressing rod 17 squeezes the push frame 13 upward, thus pushing the push frame 13 upward from the middle part of the electrode sheet 11; simultaneously... An external blower is connected to the air pipe 20, and the blower is located inside the aging test chamber 1. When the placement plate 7 moves backward and the push frame 13 is squeezed and lifted upward, the blower is controlled by the control component 3 to run, so that the blower draws the air in the aging test chamber 1 into the push frame 13, so that the gas in the push frame 13 is blown out through the upper air outlet 18 and the lower air outlet 19, and then the gas blown out from the upper air outlet 18 and the lower air outlet 19 acts on the upper and lower sides of the electrode plate 11, so that the blown airflow blows off the debris adhering to the electrode plate 11. The push frame 13 moves upward, causing the rear end of the electrode 11 to be suspended and tilted, allowing the electrode 11 to be smoothly inserted into the wiring clamp 21. When the photoelectric sensor 24 detects the electrode 11 inserted into the wiring clamp 21, it controls the electric push rod 215 to extend, thereby causing the electric push rod 215 to push the movable plate 211 to rotate, which in turn causes the first conductive plate 212 to clamp the electrode 11. Then the sealing plate is closed, and then the control component 3 controls the wiring terminal plate 23 to switch on and off. At the same time, the control component 3 controls the operation of the temperature and humidity control chamber 2 to adjust the temperature and humidity in the aging test chamber 1 to the conditions required for testing; then the air outlet pipe 30 and The air inlet pipe 29 is connected to the air inlet and air outlet of the circulating fan, and the circulating fan is located inside the aging test chamber 1. The air inside the aging test chamber 1 is drawn in through the air inlet pipe 29 and injected into the first air chamber 25. Then the gas in the first air chamber 25 flows into the second air chamber 26 through the extension pipe 27 and the hose 28. Finally, the gas in the second air chamber 26 flows back to the circulating fan through the air outlet pipe 30. The circulating gas absorbs and circulates the heat generated by the contact between the first conductive sheet 212, the second conductive sheet 213 and the electrode sheet 11, and cools down the high temperature generated on the surface of the electrode sheet 11. At this point, the experimental data of the power-on aging process of the dimming film 8 is recorded until the power-on aging test is completed. The terminal block 23 is de-energized by the control component 3, and the temperature and humidity control box 2 is stopped. Then the sealing door 4 is opened, and the electric push rod 215 is shortened by the control component 3. Then the first spring 16 drives the movable plate 211 to rotate, thereby causing the movable plate 211 to separate the first conductive sheet 212 from the electrode sheet 11, thereby releasing the clamping of the electrode sheet 11. The electric slide rail 9 is then controlled by the control component 3 to move. At this time, the electric slide rail 9 drives the electric slider 10 and the placement plate 7 to move forward until the front half of the dimming film 8 is removed from the aging test chamber 1. At this time, the dimming film 8 can be removed to complete the power-on aging test of the dimming film 8.

[0042] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. An aging chamber for dimming films, comprising an aging test chamber (1); characterized in that: A temperature and humidity control box (2) is installed on the right side of the aging test chamber (1). A control component (3) is installed on the front of the temperature and humidity control box (2). A sealing door (4) is hinged to the front of the aging test chamber (1). Transparent observation windows (5) are installed on the side of the aging test chamber (1) and inside the sealing door (4). Several support plates (6) are installed inside the aging test chamber (1). A placement plate (7) is provided on the support plate (6). A dimming film (8) is provided on the placement plate (7). Two electrode plates (11) are connected to the back of the dimming film (8). Two extension frames (12) are installed on the back of the placement plate (7). Two sliding grooves (14) are opened in the extension frames (12). A sliding block (15) is slidably connected inside the groove (14). A push frame (13) is installed outside the sliding block (15). A first spring (16) is installed under the sliding block (15). The first spring (16) is installed on the inner wall of the sliding groove (14). The electrode plate (11) is located on the push frame (13). Two extrusion rods (17) are installed on the support plate (6) at the position corresponding to the push frame (13). The rear half of the lower surface of the push frame (13) is set in an inclined shape. Two first fixing seats (22) are installed on the placement plate (7). A wire clamp (21) is installed on the fixing seat (22). A wire terminal plate (23) is installed on the placement plate (7). The wire terminal plate (23) is electrically connected to the wire clamp (21).

2. The electrically powered aging chamber for dimming film according to claim 1, characterized in that: The two push frames (13) are connected to an air pipe (20) on their sides. The back of the push frame (13) is provided with a lower air outlet (19), and the side of the push frame (13) is provided with an upper air outlet (18). The upper air outlet (18) and the lower air outlet (19) are located on the upper and lower sides of the electrode plate (11), respectively.

3. The electrically powered aging chamber for dimming film according to claim 2, characterized in that: The upper vent (18) is inclined backward along the direction of the electrode plate (11), and the lower vent (19) is inclined upward.

4. The electrically powered aging chamber for dimming film according to claim 3, characterized in that: The wiring clamp (21) includes a movable plate (211) and a fixed plate (214). The fixed plate (214) is fixedly installed on the fixed base (22). A first conductive sheet (212) is installed under the movable plate (211), and a second conductive sheet (213) is installed on the fixed plate (214). The first conductive sheet (212) and the second conductive sheet (213) are hinged together by a pin. A second spring (216) is installed on the fixed base (22). The second spring (216) is fixedly connected to the lower part of the movable plate (211). An electric push rod (215) is provided under the movable plate (211). The electric push rod (215) is installed through the fixed plate (214).

5. The electrically powered aging chamber for dimming film according to claim 4, characterized in that: An electric slide rail (9) is installed inside the support plate (6), and an electric slider (10) is installed inside the electric slide rail (9). The electric slider (10) is installed under the placement plate (7).

6. The electrically powered aging chamber for dimming film according to claim 5, characterized in that: The movable plate (211) has a first air chamber (25) and the fixed plate (214) has a second air chamber (26). An air inlet pipe (29) is connected to the movable plate (211) and the air inlet pipe (29) is connected to the first air chamber (25). An air outlet pipe (30) is connected to the side of the fixed plate (214). An extension pipe (27) is connected to the side of the movable plate (211) and the fixed plate (214). A flexible hose (28) is connected between the two extension pipes (27).

7. The electrically powered aging chamber for dimming film according to claim 6, characterized in that: A photoelectric sensor (24) is installed under the fixed plate (214), and the photoelectric sensor (24) is electrically connected to the control component (3).

8. The electrically powered aging chamber for dimming film according to claim 7, characterized in that: An insulating pad is installed on the upper surface of the push frame (13), and the insulating pad is made of ethylene propylene rubber.

9. The electrically powered aging chamber for dimming film according to claim 8, characterized in that: The lower surface of the push frame (13) is provided with a contact layer, which is made of Teflon.

10. The electrically powered aging chamber for a dimming film according to claim 9, characterized in that: The movable plate (211) and the fixed plate (214) are made of thermally conductive and insulating material, specifically polyphenylene sulfide.

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