Black antireflection film and subway shielding door plate structure

Abstract

The application discloses a black antireflection film and a subway shielding door plate structure, and belongs to the technical field of antireflection films. The antireflection film comprises a transparent conductive layer, a black electrochromic layer, an ion storage layer, an electrolyte layer, a protective layer and a transparent cooling layer which are sequentially arranged. The transparent cooling layer is fixedly installed on the surface of the protective layer. The transparent cooling layer comprises a plurality of cooling pipelines which are arranged in a horizontal and vertical mode. The cooling pipelines are filled with cooling liquid. The transparent cooling pipeline is arranged on the surface of the antireflection film. When the antireflection film generates heat, the antireflection film can be cooled in time, so that the heat dissipation effect of the subway shielding door plate structure during use is improved, and the service life of the device is prolonged. In the subway shielding door plate structure, the displacement control device can control the black antireflection film to slide and form a heat dissipation space between the black antireflection film and the back plate body, so that the problem of poor heat dissipation effect caused by the fact that the antireflection film is tightly attached to the subway shielding door plate structure is avoided.

Description

Technical Field

[0001] This invention belongs to the field of antireflective film technology, specifically relating to a black antireflective film and a subway shielding door structure. Background Technology

[0002] During subway operation, the environment inside the tunnel is complex, especially in summer when the tunnel temperature can be significantly higher than the platform due to frequent train friction and equipment heat dissipation. Conversely, in winter, the tunnel is much colder. Insulated platform screen doors can block heat exchange between the tunnel and the platform, maintaining a relatively comfortable and stable temperature on the platform and reducing passenger discomfort caused by temperature differences, eliminating the need to experience sudden temperature fluctuations while waiting for the train. Some existing special subway platform screen doors use a technology similar to anti-reflective glass. When not powered, the glass is black and opaque; when powered, it gradually becomes transparent, providing a clearer view of the tracks and reducing glare. However, during operation, when an electric field is applied, the liquid crystal molecules rearrange, a process that consumes electrical energy and generates heat. Therefore, this type of subway platform screen door structure suffers from poor heat dissipation. Summary of the Invention

[0003] In view of this, the purpose of the present invention is to provide a black antireflective film and a subway shielding door structure, which can improve the heat dissipation performance of the subway shielding door structure.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] The present invention discloses a black antireflective film comprising a transparent conductive layer, a black electrochromic layer, an ion storage layer, an electrolyte layer, a protective layer, and a transparent cooling layer arranged sequentially. The transparent cooling layer is fixedly installed on the surface of the protective layer and includes a plurality of cooling channels arranged alternately in the horizontal and vertical directions, the cooling channels being filled with coolant.

[0006] A subway screen door structure includes a black anti-reflective film as described above. The structure also includes a back panel body, two side panels mounted on both sides of the back panel body, and a rear panel mounted between the two side panels and parallel to the back panel. The back panel body has several through holes. Slider blocks are connected to both sides of the black anti-reflective film, and the sliders are slidably mounted on the side panels. A displacement control device is installed on the rear panel. The displacement control device controls the black anti-reflective film to slide, creating a heat dissipation space between the black anti-reflective film and the back panel body. A blower is provided on the side panel corresponding to the heat dissipation space. The cooling pipe array includes several spiral pipes connected to the cooling pipes. The tail ends of two adjacent spiral pipes are connected. The spiral pipes are made of an elastic material, and their axes extend towards the side where the back panel body is located. The back panel body has stepped grooves that limit the movement of the spiral pipes.

[0007] Furthermore, a protrusion is fixed on the lower side of the black antireflective film, and the protrusion corresponds one-to-one with the through hole. The diameter of the protrusion is adapted to the diameter of the through hole, and the protrusion can seal the through hole.

[0008] Furthermore, the inner side of the back plate body is provided with a channel and an inflation pipe communicating with the channel. The channel is connected to an air pump. An airbag communicating with the inflation pipe is installed in the back plate body. After the airbag is inflated, it can extend into the heat dissipation space.

[0009] Furthermore, the two sides of the rear plate are respectively hinged to two side plates, the two sides of the back plate body are respectively hinged to two side plates, the two sides of the black anti-reflective film are respectively hinged to two sliders, a support sensing component is installed between the black anti-reflective film and the side plates, the support sensing component is electrically connected to the controller, and the controller is electrically connected to the air pump.

[0010] Furthermore, the support sensing assembly is obliquely installed between the black antireflective film and the side plate. The support sensing assembly includes a rigid inner rod, a brittle outer rod, a locking component, a stress sensor, a threaded rod, and a locking component. One end of the rigid inner rod is fixedly connected to the black antireflective film, and the other end of the rigid inner rod is installed inside the brittle outer rod through the locking component. A central hole is opened at the end of the brittle outer rod. One end of the rigid inner rod extending into the brittle outer rod is connected to the threaded rod through the stress sensor. After passing through the central hole, the threaded rod is connected to the brittle outer rod through the locking component. The brittle outer rod is detachably connected to the side plate.

[0011] Furthermore, the engaging component includes a spring and a ball bearing. A radial groove is formed on the inner side of the brittle outer rod, and a ball bearing is connected to the bottom of the radial groove via a spring. A locking groove corresponding to the ball bearing is formed on the outer side of the rigid inner rod.

[0012] Furthermore, the blower is installed on one of the side plates, and the position of the blower corresponds to the heat dissipation space. The other side plate has a slag outlet corresponding to the blower.

[0013] Furthermore, the displacement control device includes a shape memory alloy strip, the two ends of which are connected to the back plate and the black antireflective film, respectively.

[0014] The beneficial effects of this invention are as follows:

[0015] The present invention discloses a black antireflective film. By setting transparent cooling pipes on the surface of the antireflective film, the antireflective film can be cooled in time when it heats up, thereby improving the heat dissipation effect of the subway screen door structure during use and extending the life of the device.

[0016] In the subway screen door structure disclosed in this invention, when the temperature reaches a preset threshold, the displacement control device can control the black anti-reflective film to slide so that a heat dissipation space is formed between the black anti-reflective film and the back panel body, thus avoiding the problem of poor heat dissipation caused by the anti-reflective film being tightly attached to the subway screen door structure.

[0017] In the subway screen door structure disclosed in this invention, a spiral pipe is incorporated to provide an elastic pre-tension force to the anti-reflective membrane when the displacement control device is unloaded, thereby driving it to return to its original position and ensuring the stability and aesthetics of the device during use. Simultaneously, the spiral pipe connects to a cooling pipe, extending into the heat dissipation space to also contribute to heat dissipation, increasing the overall heat dissipation effect of the device and meeting practical usage requirements.

[0018] Other advantages, objectives, and features of the invention will be set forth in the following description and will be apparent to those skilled in the art in some respects, or may be learned by practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0019] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the following figures are provided for illustration:

[0020] Figure 1 This is a schematic diagram of the subway screen door structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0022] Figure 3 A schematic diagram of the structure supporting the sensing component;

[0023] Figure 4This is a schematic diagram of the transparent cooling layer.

[0024] The following are labeled in the attached diagram: 1. Black antireflective film; 2. Transparent cooling layer; 3. Back plate body; 4. Side plate; 5. Rear plate; 6. Through hole; 7. Slider; 8. Displacement control device; 9. Heat dissipation space; 10. Blower; 11. Spiral pipe; 12. Stepped groove; 13. Protrusion; 14. Channel; 15. Inflation pipe; 16. Airbag; 17. Support sensing component; 18. Rigid inner rod; 19. Brittle outer rod; 20. Stress sensor; 21. Threaded rod; 22. Locking element; 23. Spring; 24. Ball bearing; 25. Radial groove; 26. Slag outlet; 27. Detailed Implementation

[0025] like Figures 1-4 As shown, this invention discloses a black antireflective film, comprising a transparent conductive layer, a black electrochromic layer, an ion storage layer, an electrolyte layer, a protective layer, and a transparent cooling layer 2, arranged sequentially. The transparent conductive layer is made of ITO, with a transparency typically reaching 80%-90% in the visible light range, low surface resistivity, and good conductivity and mechanical stability. The black electrochromic layer is a functional layer that can exhibit black or near-black color during the electrochromic process. Its basic principle is to change the chemical state and structure of the material through an electrochemical reaction, thereby altering the material's light absorption and reflection characteristics. The aforementioned layers are all prior art and will not be described in detail here. In contrast, this invention fixes the transparent cooling layer 2 to the surface of the protective layer. The transparent cooling layer 2 includes several horizontally and vertically arranged cooling pipes filled with a coolant, which is ethylene glycol. In some other embodiments, the cooling pipes can be connected to a refrigeration device to achieve cooling of the cooling pipes and to circulate cooling to the black antireflective film 1.

[0026] Meanwhile, this invention also discloses a subway screen door structure, including the aforementioned black anti-reflective film 1. Specifically, the subway screen door structure further includes a back panel body 3, two side panels 4 installed on both sides of the back panel body 3, and a rear panel 5 installed between the two side panels 4 and parallel to the back panel. The back panel body 3 is located on the back side of the subway door. The side panels 4 are connected and installed to the subway door via flexible components. Several through holes 6 are formed on the surface of the back panel body 3 for ventilation. The two side panels 4 have identical structures and are used to seal the sides of the back panel. The front and rear sides of the back panel and the side panels 4 together form a heat dissipation space 9, avoiding the problem of poor heat dissipation caused by the anti-reflective film being tightly attached to the subway screen door structure.

[0027] Furthermore, sliders 7 are connected to both sides of the black antireflective film 1. With the normal of the back plate as the vertical direction, the sliders 7 can slide along the vertical direction. The sliders 7 are slidably set on the side plate 4. Since the two sides of the black antireflective film 1 are connected to the sliders 7, the sliders 7 can drive the black antireflective film 1 to also move along the vertical direction, thereby adjusting the distance between the black antireflective film 1 and the back plate.

[0028] The rear panel 5 is equipped with a displacement control device 8. The displacement control device 8 controls the black anti-reflective film 1 to slide, so that a heat dissipation space 9 is formed between the black anti-reflective film 1 and the back panel body 3. Corresponding to the heat dissipation space 9, a blower 10 is provided on the side panel 4. The blower 10 can blow flowing gas into the heat dissipation space 9, which accelerates the air flow in the heat dissipation space 9, thereby achieving heat dissipation.

[0029] The cooling pipe array includes several spiral pipes 11 connected to the cooling pipes. The ends of two adjacent spiral pipes 11 are connected by short pipes to facilitate the flow of coolant between the spiral pipes 11. The spiral pipes 11 are made of elastic material and their axes extend towards the side of the back plate body 3. The back plate body 3 has stepped grooves 12 that limit the movement of the spiral pipes 11. Under normal conditions, the spiral pipes 11 can be hidden within the stepped grooves 12. When the spiral pipes 11 extend outward, they can also provide a certain degree of damping when the subway vibrates during operation. By incorporating the spiral pipes 11, the device of this invention can provide an elastic preload to the antireflective membrane when the displacement control device 8 is unloaded, thereby driving it to return to its original position and ensuring the stability and aesthetics of the device during use.

[0030] The spiral pipe 11 disclosed in this invention is connected to the cooling pipe. The spiral pipe 11 extends into the heat dissipation space 9 and can be used for heat dissipation at the same time. Under the combined action of air cooling and water cooling, the heat dissipation effect of the overall device is increased, which meets the actual use requirements.

[0031] In this embodiment, a protrusion 13 is fixed on the lower side of the black antireflection film 1. The protrusion 13 corresponds one-to-one with the through hole 6. The diameter of the protrusion 13 is adapted to the diameter of the through hole 6. When the black antireflection film 1 is not in use, the protrusion 13 normally cooperates with the through hole 6 and closes the through hole 6, thereby preventing impurities from entering and affecting the heat dissipation performance.

[0032] In this embodiment, the inner side of the back plate body 3 is provided with a channel 14 and an inflation pipe 15 connected to the channel 14. The channel 14 is connected to an air pump. An airbag 16 connected to the inflation pipe 15 is installed inside the back plate body 3. After the airbag 16 is inflated, it can extend into the heat dissipation space 9. By setting the airbag 16, the black anti-reflective film 1 can be buffered when the subway vibrates, and the impact of vibration on the black anti-reflective film 1 can be reduced.

[0033] In this embodiment, the two sides of the rear plate 5 are hinged to two side plates 4 respectively, the two sides of the back plate body 3 are hinged to two side plates 4 respectively, and the two sides of the black antireflective film 1 are hinged to two sliders 7 respectively. A support sensing component 17 is installed between the black antireflective film 1 and the side plates 4. The support sensing component 17 is electrically connected to the controller, and the controller is electrically connected to the air pump. When vibration is applied to the support sensing component 17, the support sensing component 17 sends a signal to the controller, which can control the air pump to start. The airbag 16 expands out from the inside of the back plate body 3, which can buffer the black antireflective film 1.

[0034] In this embodiment, the support sensing component 17 is obliquely installed between the black antireflective film 1 and the side plate 4. The support sensing component 17 includes a rigid inner rod 18, a brittle outer rod 19, a locking member, a stress sensor 20, a threaded rod 21, and a locking member 22. The rigid inner rod 18 is made of a metal material that is not easily broken, and the brittle outer rod 19 can be made of a brittle material such as glass, which can ensure a certain initial support force. One end of the rigid inner rod 18 is fixedly connected to the black antireflective film 1, and the other end of the rigid inner rod 18 is installed in the brittle outer rod 19 through the locking member. The end of the brittle outer rod 19 has a central hole. One end of the rigid inner rod 18 that extends into the brittle outer rod 19 is connected to the threaded rod 21 through the stress sensor 20. After passing through the central hole, the threaded rod 21 is connected to the brittle outer rod 19 through the locking member 22. The brittle outer rod 19 is detachably connected to the side plate 4.

[0035] When the subway experiences significant vibrations exceeding the threshold of the brittle outer rod 19, the brittle outer rod 19 breaks, causing relative displacement between the rigid inner rod 18 and the brittle outer rod 19. At this point, the stress sensor 20 is subjected to force, thus sending a signal to the controller. By making the brittle outer rod 19 a detachable connection, it is easy to replace it when damaged, preparing for the next vibration event and making the process more convenient.

[0036] In this embodiment, the engaging component includes a spring 23 and a ball bearing 24. A radial groove 25 is provided on the inner side of the brittle outer rod 19, and the ball bearing 24 is connected to the bottom of the radial groove 25 through the spring 23. A slot 26 corresponding to the ball bearing 24 is provided on the outer side of the rigid inner rod 18. When the brittle outer rod 19 is inserted inward, the ball bearing 24 can be easily inserted into the slot 26, reducing the alignment and installation time, achieving automatic engagement, and making installation more convenient.

[0037] In this embodiment, the blower 10 is installed on one of the side plates 4, and the position of the blower 10 corresponds to the heat dissipation space 9. The other side plate 4 has a slag outlet 27 corresponding to the blower 10, which can facilitate ventilation and heat dissipation while also removing the residue of the brittle outer rod 19 and reducing foreign matter residue.

[0038] In this embodiment, the displacement control device 8 includes a shape memory alloy strip. The two ends of the shape memory alloy strip are connected to the back plate 5 and the black anti-reflection film 1, respectively. The shape memory alloy strip is used to sense the temperature of the surface of the black anti-reflection film 1. When the temperature increases, the shape memory alloy strip deforms and pulls the black anti-reflection film 1 away from the back plate body 3. The back plate 5 is made of heat insulation material to prevent the temperature of the subway body itself from affecting the shape memory alloy strip.

[0039] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of the present invention.

Claims

1. A subway platform screen door structure, characterized in that: The system includes a black antireflective film, comprising a transparent conductive layer, a black electrochromic layer, an ion storage layer, an electrolyte layer, a protective layer, and a transparent cooling layer arranged sequentially. The transparent cooling layer is fixedly installed on the surface of the protective layer and includes several horizontally and vertically arranged cooling pipes filled with coolant. The subway screen door structure also includes a back panel body, two side panels installed on both sides of the back panel body, and a rear panel installed between the two side panels and parallel to the back panel. The back panel body has several through holes, and the two sides of the black antireflective film are respectively connected to... A slider is attached to the side plate, and a displacement control device is installed on the rear plate. The displacement control device controls the black antireflective film to slide, so that a heat dissipation space is formed between the black antireflective film and the back plate body. A blower is provided on the side plate corresponding to the heat dissipation space. Several spiral pipes connected to cooling pipes are arranged in an array in the heat dissipation space. The tail ends of two adjacent spiral pipes are connected. The spiral pipes are made of elastic material and the axis of the spiral pipes extends toward the side where the back plate body is located. The back plate body has stepped grooves that limit the spiral pipes.

2. The subway platform screen door structure according to claim 1, characterized in that: The black antireflective film has a protrusion fixed on its lower side, and the protrusion corresponds one-to-one with the through hole. The diameter of the protrusion is adapted to the diameter of the through hole, and the protrusion can seal the through hole.

3. The subway platform screen door structure according to claim 2, characterized in that: The backplate body has a channel and an inflation pipe connected to the channel on its inner side. The channel is connected to an air pump. An airbag connected to the inflation pipe is installed inside the backplate body. The airbag can extend into the heat dissipation space after it is inflated.

4. A subway platform screen door structure according to claim 3, characterized in that: The two sides of the rear plate are hinged to two side plates respectively, the two sides of the back plate body are hinged to two side plates respectively, the two sides of the black anti-reflective film are hinged to two sliders respectively, a support sensing component is installed between the black anti-reflective film and the side plates, the support sensing component is electrically connected to the controller, and the controller is electrically connected to the air pump.

5. A subway platform screen door structure according to claim 4, characterized in that: The support sensing assembly is obliquely installed between the black antireflective film and the side plate. The support sensing assembly includes a rigid inner rod, a brittle outer rod, a locking component, a stress sensor, a threaded rod, and a locking component. One end of the rigid inner rod is fixedly connected to the black antireflective film, and the other end of the rigid inner rod is installed inside the brittle outer rod through the locking component. A central hole is opened at the end of the brittle outer rod. One end of the rigid inner rod extending into the brittle outer rod is connected to the threaded rod through the stress sensor. The threaded rod passes through the central hole and is connected to the brittle outer rod through the locking component. The brittle outer rod is detachably connected to the side plate.

6. A subway platform screen door structure according to claim 5, characterized in that: The engaging component includes a spring and a ball bearing. A radial groove is formed on the inner side of the brittle outer rod, and a ball bearing is connected to the bottom of the radial groove by a spring. A groove corresponding to the ball bearing is formed on the outer side of the rigid inner rod.

7. A subway platform screen door structure according to any one of claims 2-6, characterized in that: The blower is installed on one of the side plates, and the position of the blower corresponds to the heat dissipation space. The other side plate has a slag outlet corresponding to the blower.

8. A subway platform screen door structure according to any one of claims 2-6, characterized in that: The displacement control device includes a shape memory alloy strip, the two ends of which are connected to the back plate and the black antireflective film, respectively.

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