Multi-layer composite optical film structure

Abstract

The utility model discloses a multilayer composite optical film structure, which comprises an edge sealing frame, an optical sheet, a thermal insulation layer, a wear-resistant layer and a protective layer are respectively arranged in the edge sealing frame, the thermal insulation layer is attached below the optical sheet, the wear-resistant layer is attached above the optical sheet, the protective layer is attached above the wear-resistant layer, and the protective layer is attached above the wear-resistant layer. The utility model relates to the technical field of optical films. According to the multi-layer composite optical film structure, the protective layer is attached to the upper portion of the wear-resistant layer, the heat insulation layer is attached to the lower portion of the optical sheet, and the heating strip is matched for use, so that heat of the heating strip can be prevented from being in direct contact with the optical sheet by means of the heat insulation performance of the heat insulation layer; and meanwhile, the protective layer can effectively prevent stains such as oil stains from being solidified on the surface of the protective layer by utilizing the material characteristics of the protective layer, so that the stains on the surface of the protective layer can be conveniently cleaned, and the current use requirement is met.

Description

Technical Field

[0001] The utility model relates to the technical field of optical films, in particular to a multi-layer composite optical film structure. Background Art

[0002] An optical thin film is a kind of optical dielectric material composed of thin layered dielectrics and propagating light beams through interfaces. Existing optical thin films are used in fields such as building glass facades, automotive glass, and mirror glass. When the optical thin film encounters moisture or raindrops, it is easy to get wet and fog the glass, affecting the viewing field. If the fogged mirror surface is wiped manually, it is easy to cause damage to the surface of the optical thin film. The traditional optical thin film has poor dehumidification and protection performance, and there are already patent documents for improvement.

[0003] For example, in Chinese Patent CN210924003U, an optical thin film includes an optical sheet, an optical thin film, an electric heating layer, and a sealing strip. The optical thin film and the electric heating layer are sequentially arranged on the top surface of the optical sheet. After the combination of the optical sheet, the optical thin film, and the electric heating layer, the outer edge is coated with a sealing strip. The optical thin film is a multi-layer film composite structure, which includes a release film, a first adhesive layer, a flexible base layer, a second adhesive layer, an anti-ultraviolet film layer, a wear-resistant layer, and a high-temperature resistant layer arranged in sequence. An easy-to-tear paper is arranged between the two ends of the release film and the first adhesive layer. By adding an electric heating layer on the surface of the optical thin film, when the surface of the optical thin film encounters moisture atomization, frost, etc., the electric heating layer can be energized to generate heat, ensuring a clear field of view and no icing, and avoiding the problem of damage to the surface of the optical thin film caused by traditional manual wiping, and improving the dehumidification and protection performance of the optical thin film.

[0004] Although the device in the above document uses a heating device to heat the optical film to prevent icing and frosting and ensure a clear field of view, it still has obvious defects in actual use, such as:

[0005] In daily use, in addition to icing and frosting, other oil stains and the like will also adhere to the optical film. Although the heating device can effectively dry the moisture on the surface of the film, the remaining oil stains cannot be easily removed. If wiped manually, the oil stains will spread over the entire surface of the film and cover the optical film in a large area;

[0006] Therefore, a multi-layer composite optical film structure that can be easily cleaned is now designed to solve such defects. Summary of the Utility Model

[0007] Aiming at the deficiencies of the prior art, the utility model provides a multi-layer composite optical film structure, which solves the problem that existing optical films cannot effectively remove other oil stains.

[0008] To achieve the above object, the utility model is realized by the following technical solutions: A multi-layer composite optical film structure, including a sealing frame, an optical sheet, a heat insulation layer, a wear-resistant layer and a protective layer are respectively arranged inside the sealing frame, the heat insulation layer is attached below the optical sheet, the wear-resistant layer is attached above the optical sheet, and the protective layer is attached above the wear-resistant layer.

[0009] Preferably, a guiding storage groove is opened on the edge side of the top of the sealing frame, sliding frames are slidably installed on both sides of the inner cavity of the guiding storage groove, a rotating block is rotatably connected to the inner side of the sliding frame through a bearing member, a transverse rod is rotatably connected between the two rotating blocks through a bearing member, and a wiping cylinder matched with the protective layer is fixedly connected to the surface of the transverse rod.

[0010] Preferably, a heating strip is fixedly connected to the bottom of the inner cavity of the sealing frame through an opening, and a plurality of heating strips are provided.

[0011] Preferably, the protective layer is a polyethylene terephthalate PET film.

[0012] Preferably, the heat insulation layer is a multi-layer polyester film.

[0013] Preferably, the wear-resistant layer is a tempered film made of polycarbonate material. Beneficial effects

[0014] The utility model provides a multi-layer composite optical film structure. Compared with the existing technology, the following beneficial effects are achieved:

[0015] (1). In this multi-layer composite optical film structure, by attaching a protective layer on the upper part of the wear-resistant layer and attaching a heat insulation layer below the optical sheet, and using the heating strip in cooperation, the settings of these structures can utilize the heat insulation performance of the heat insulation layer to prevent the heat of the heating strip from directly contacting the optical sheet, avoiding damage to the optical sheet caused by long-term heating. At the same time, the protective layer can effectively prevent oil stains and other stains from solidifying on its surface due to its own material characteristics, making the stains on its surface easy to clean, meeting the current use requirements.

[0016] (2). In this multi-layer composite optical film structure, by opening a guiding storage groove on the top of the sealing frame and installing a wiping cylinder inside it using a sliding frame, the settings of these structures can directly turn the wiping cylinder out from the inside of the guiding storage groove when the protective layer needs to be cleaned, and use the wiping cylinder to wipe the surface of the protective layer clean, facilitating the use of the staff. Description of the drawings

[0017] Figure 1 is a schematic structural diagram of the utility model;

[0018] Figure 2Schematic diagram of the sliding frame, pulling and rotating block, and transverse rod structures of the present utility model;

[0019] Figure 3 Cross-sectional view of the sealing frame structure of the present utility model;

[0020] Figure 4 Schematic diagram of the optical sheet, heat insulation layer, wear-resistant layer, and protective layer structures of the present utility model;

[0021] Figure 5 Schematic diagram of the heating strip structure of the present utility model.

[0022] In the figure: 1, sealing frame; 2, optical sheet; 3, heat insulation layer; 4, wear-resistant layer; 5, protective layer; 6, guiding and receiving groove; 7, sliding frame; 8, pulling and rotating block; 9, transverse rod; 10, wiping cylinder; 11, heating strip. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-5 , the present utility model provides a technical solution: a multi-layer composite optical film structure, including a sealing frame 1. Inside the sealing frame 1, an optical sheet 2, a heat insulation layer 3, a wear-resistant layer 4, and a protective layer 5 are respectively provided. The heat insulation layer 3 is attached below the optical sheet 2. The heat insulation layer 3 is a multi-layer polyester film. The wear-resistant layer 4 is attached above the optical sheet 2. The protective layer 5 is attached above the wear-resistant layer 4. The protective layer 5 is a polyethylene terephthalate PET film. The wear-resistant layer 4 is a tempered film made of polycarbonate material.

[0025] During use, if there is frost on the surface of the protective layer 5, start the heating strip 11 to heat the entire inside of the sealing frame 1. The heat insulation layer 3 can insulate the heating strip 11 to prevent the heat of the heating strip 11 from directly acting on the surface of the optical sheet 2, preventing damage to the optical sheet 2 caused by long-term heating. And the protective layer 5 can effectively prevent oil stains from adhering.

[0026] Further, a guiding storage groove 6 is formed on the edge side of the top of the sealing frame 1. Sliding frames 7 are slidably installed on both sides of the inner cavity of the guiding storage groove 6. A pulling and rotating block 8 is rotatably connected to the inner side of the sliding frame 7 through a bearing member. A transverse rod 9 is rotatably connected between the two pulling and rotating blocks 8 through a bearing member. A wiping cylinder 10 which is used in cooperation with the protective layer 5 is fixedly connected to the surface of the transverse rod 9. The bottom of the inner cavity of the sealing frame 1 is fixedly connected with a heating strip 11 through an opening, and a plurality of heating strips 11 are provided.

[0027] Moreover, when there is oil stain on the surface of the protective layer 5, the staff flips the wiping cylinder 10 from the inside of the guiding storage groove 6 through the pulling and rotating block 8 to make it fit with the protective layer 5, and then drives the wiping cylinder 10 to move under the limitation of the sliding frame 7 to wipe the surface of the protective layer 5 to quickly remove the oil stain. After the oil stain is removed, it can be flipped and stored inside the guiding storage groove 6 again. The function of the wear-resistant layer 4 can effectively prevent scratches and reduce damage to the optical sheet 2.

[0028] Meanwhile, the content not detailedly described in this specification belongs to the prior art well known to those skilled in the art.

Claims

1. A multi-layer composite optical film structure, comprising a sealing frame (1), characterized in that: An optical sheet (2), a heat-insulating layer (3), a wear-resistant layer (4) and a protective layer (5) are respectively arranged inside the sealing frame (1); the heat-insulating layer (3) is attached to the bottom of the optical sheet (2); the wear-resistant layer (4) is attached to the top of the optical sheet (2); and the protective layer (5) is attached to the top of the wear-resistant layer (4).

2. A multi-layer composite optical film structure according to claim 1, characterized in that: A guide receiving groove (6) is provided on the edge side of the top of the sealing frame (1), and sliding frames (7) are slidably mounted on both sides of the inner cavity of the guide receiving groove (6). A pull-rotating block (8) is rotatably connected to the inner side of the sliding frame (7) via a bearing member, and a transverse rod (9) is rotatably connected between the two pull-rotating blocks (8) via a bearing member, and a wiping cylinder (10) used in conjunction with the protective layer (5) is fixedly connected to the surface of the transverse rod (9).

3. The multi-layer composite optical film structure according to claim 1, characterized in that: The bottom of the inner cavity of the sealing frame (1) is fixedly connected to a heating strip (11) via an opening, and a plurality of heating strips (11) are provided.

4. The multi-layer composite optical film structure according to claim 1, characterized in that: The protective layer (5) is a polyethylene terephthalate (PET) film.

5. The multi-layer composite optical film structure according to claim 1, characterized in that: The heat insulation layer (3) is a multi-layer polyester film.

6. The multi-layer composite optical film structure according to claim 1, characterized in that: The wear-resistant layer (4) is a tempered film made of polycarbonate.

Images