Transparent heating film

Abstract

The utility model provides a transparent heating film, which comprises a transparent base layer, an electrode layer, a conductive layer and a first protective layer, the two electrode layers are arranged on the transparent base layer; the conductive layer is arranged on the electrode layer; the first protection layer completely covers the conductive layer or the conductive layer and the electrode layer. The transparent heating film can be directly attached to transparent glass or a mirror, glass fogging is prevented through heat generated by the heating film, more uniform heating of the transparent base layer can be achieved through cooperation of the conductive layer and the electrode layer, the conductive layer or the electrode layer can be better protected through the first protection layer, and the transparent heating film is more attractive in appearance and more attractive in appearance. The service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of heating film, especially a transparent heating film. BACKGROUND

[0002] Due to the temperature difference between the inside and outside, the glass is easy to fog, which can block the sight line, especially during the moving process, the harm is greater, for example, the front windshield of the car, once fogging, affects driving.

[0003] For non-mobile (such as display cabinet, glass window at home or factory, etc.), most of the existing ones do not handle it, but after fogging, not only will it block light, sight, etc., but also water droplets will form, and there will be water stains on the glass for a long time; and for mobile (such as cars, etc.), most of the existing ones use hot air to blow onto the front windshield, and the fogging is removed under the action of hot air, but this method has the defect of high energy consumption;

[0004] There are also some solutions to the fogging problem, a layer of transparent electrothermal film is arranged on the windshield, and two conductive motors are arranged on the edge of the electrothermal film, for example, Chinese utility model application number: 94230063.7; although this method can prevent fogging and defrosting, it also has some disadvantages. When silver glue is used as the conductive electrode, its service life is long, but the high resistance value will cause current loss, and the large size of the conductive electrode cannot make it heat evenly, which can easily cause the conductive electrode to heat.

[0005] Therefore, the present application provides a transparent heating film. UTILITY MODEL CONTENTS

[0006] The utility model aims at least to solve one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a transparent heating film, which can be directly attached to transparent glass or a mirror, and the heat generated by the heating film is used to prevent the glass from fogging, overcoming the shortcomings of the current glass fogging.

[0007] According to the transparent heating film provided by the utility model, the transparent heating film comprises:

[0008] The transparent base layer has conductivity;

[0009] The electrode layer has two, and is arranged on the transparent base layer;

[0010] The conductive layer is arranged on the electrode layer;

[0011] The first protective layer completely covers the conductive layer or the conductive layer and the electrode layer.

[0012] The transparent heating film can be directly attached to the transparent glass or mirror, heat generated by the heating film is utilized to prevent the glass from fogging, the transparent base layer can be more uniformly heated through the conductive layer and the electrode layer, and the conductive layer or the electrode layer can be better protected through the first protective layer, and the service life is improved.

[0013] In some embodiments of the present application, the transparent heating film further comprises:

[0014] The first protective film is arranged on the transparent base layer and located at one side of the electrode layer, the first protective film is arranged between the two electrode layers, the first protective film is a PET protective film, and the first protective film is arranged before the electrode layer, which is beneficial to protect the transparent base layer and prevent the transparent base layer from being affected when the electrode layer and the conductive layer are printed. In addition, the first protective film can realize more uniform heating of the transparent base layer, and the first protective film can better protect the conductive coating on the transparent base layer of the product heating part, improve the service life, and when the first protective layer is arranged, the first protective film can be partially covered to prevent the first protective film from falling off and improve the service life.

[0015] The transparent base layer has two first areas on one side surface of the transparent base layer for arranging the electrode layer, and the two first areas are close to any opposite edges of the transparent base layer. For example, when the transparent base layer is in the shape of a rectangle, the two first areas are arranged side by side and close to the edges of the long side or the short side of the transparent base layer. For example, when the transparent base layer is in the shape of a circle, the two first areas are symmetrically arranged on the arc edges of the transparent base layer.

[0016] In some embodiments of the present application, the two electrode layers are arranged in the two first areas respectively, and a silver paste layer is used, and the first protective layer completely covers the first area.

[0017] In some embodiments of the present application, two wires are further included, and the two wires are connected with the conductive layer respectively.

[0018] In some embodiments of the present application, the transparent base layer is any one of an ITO film layer, a nano-silver film layer, a PEDOT film layer and a CNT film layer.

[0019] In some embodiments of the present application, the conductive layer is a copper foil layer.

[0020] In some embodiments of the present application, the first protective layer is a silica gel layer.

[0021] In some embodiments of the present application, a sticky layer is arranged on the surface of the transparent base layer away from the electrode layer, and an easy-to-tear layer is arranged on the surface of the sticky layer.

[0022] In some embodiments of the utility model, the first protective layer is provided with a relief hole for the wire to pass through.

[0023] In some embodiments of the utility model, the surface of the transparent base layer away from the electrode layer is provided with a second protective film.

[0024] In some embodiments of the utility model, the first protective film and the second protective film can adopt a PET layer. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the utility model, and the illustrative embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model.

[0026] Among them:

[0027] Figure 1 It is the front view of the transparent heating film of the utility model;

[0028] Figure 2 It is the partial enlarged view of the utility model Figure 1 ;

[0029] Figure 3 It is the partial enlarged view of the transparent heating film of the utility model;

[0030] Figure 4 It is the side view of the transparent heating film of the utility model Figure 1 ;

[0031] Figure 5 It is the side view of the transparent heating film of the utility model Figure 2 ;

[0032] Figure 6 It is the side view of the transparent heating film of the utility model Figure 3 ;

[0033] Figure 7 It is the side view of the transparent heating film of the utility model Figure 4 .

[0034] Explanation of reference numerals:

[0035] 10, transparent base layer;20, electrode layer;30, conductive layer;40, first protective layer;41, relief hole;50, wire;51, second protective layer;60, first protective film;70, second protective film;80, adhesive layer;90, easy tear layer. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer and more explicit, the utility model will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model and not to limit the utility model.

[0037] Please refer to Figure 1 , 2 , 4, as a transparent heating film of the utility model, including transparent base layer 10, electrode layer 20, conductive layer 30, first protective layer 40, transparent base layer 10 has conductivity, not only can conduct electricity, and transparent material can prevent light from being blocked; electrode layer 20 has two, and all are arranged on transparent base layer 10, that is, electrode layer 20 has two parts, is connected to the positive and negative poles of power supply equipment respectively, and can be arranged side by side on transparent base layer 10; conductive layer 30 is arranged on electrode layer 20; first protective layer 40 completely covers conductive layer 30 or conductive layer 30 and electrode layer 20, specifically, the surface of conductive layer 30 and the side wall part of conductive layer 30 and electrode layer 20 should be completely covered by first protective layer 40 to improve the service life of the heating film, the width of conductive layer 30 can be less than the width of electrode layer 20, or equal to the width of electrode layer 20, and more preferably, the width of conductive layer 30 is equal to the width of electrode layer 20. The transparent heating film of the utility model can be directly attached to transparent glass or mirror, and the heat generated by the heating film is used to prevent glass from fogging, wherein the transparent base layer 10 can be heated more uniformly by the cooperation of conductive layer 30 and electrode layer 20, and the conductive layer 30 or electrode layer 20 can be better protected by first protective layer 40 to improve the service life.

[0038] Specifically refer to Figures 5-7 The transparent heating film further comprises first protective film 60 for protecting the surface of transparent base layer 10, specifically, first protective film 60 is arranged on transparent base layer 10 and located on one side of electrode layer 20, first protective film 60 is preferably arranged at the middle position of transparent base layer 10, first protective film 60 is arranged between two electrode layers 20, first protective film 60 is made of PET protective film, and first protective film 60 is arranged before electrode layer 20, which is beneficial to protecting transparent base layer 10 and preventing transparent base layer 10 from being affected when printing electrode layer 20 and conductive layer 30. In addition, first protective film 60 can realize more uniform heating of transparent base layer 10, and the heating conductive coating on the transparent base layer 10 of the product can be better protected by first protective film 60 to improve the service life. When first protective layer 40 is arranged, first protective layer 40 can partially cover part of the area of first protective film 60, which not only improves the sealing property, but also prevents first protective film 60 from falling off to improve the firmness and the service life of the transparent heating film.

[0039] The transparent base layer 10 has two first areas on one side surface for arranging the electrode layer 20, and the two first areas are close to any opposite edges of the transparent base layer 10; for example, the transparent base layer 10 is in the shape of a rectangle, the two first areas are arranged side by side and close to the edges of the long side or the short side of the transparent base layer 10; for example, the transparent base layer 10 is in the shape of a circle, the two first areas are symmetrically arranged on the arc edges of the transparent base layer 10, of course, the shape of the transparent base layer 10 can also be polygonal or sectorial and the like; the two first areas are selectively arranged according to actual needs, and a first protective film 60 is arranged between the two first areas.

[0040] The transparent base layer 10 is made of any one of an ITO film layer, a nano-silver film layer, a PEDOT film layer and a CNT film layer, so that the transparent base layer 10 has conductivity; if the first protective film 60 is arranged, the first protective film 60 is arranged on the surface of the transparent base layer 10 first, then the two electrode layers 20 are arranged in the two first areas respectively, and a silver paste layer is used, the first protective layer 40 completely covers the first area, the conductive layer 30 is made of a copper foil layer, and when the electrode layer 20 is solidified and formed, the copper foil layer is directly attached to the electrode layer 20. The silver paste material is printed or coated on the two first areas respectively to form the electrode layer 20. The electrode layer 20 and the conductive layer 30 form a conductive electrode, and the conductive electrode has better conduction performance, low loss, long service life and uniform heating and high service life of large-size products.

[0041] Please refer to Figures 1-2 The transparent heating film further comprises two wires 50, and the two wires 50 are connected with the conductive layer 30 respectively. The other ends of the two wires 50 are connected with a power supply device.

[0042] Please refer to Figure 2 The first protective layer 40 is made of a silica gel layer, the first protective layer 40 is provided with a relief hole 41 for the wire 50 to pass through, the first protective layer 40 is hot-pressed and formed by using a vulcanizing machine, the relief hole 41 is preset before forming, and one end of the wire 50 is directly welded on the conductive layer 30 after hot-pressing and forming. Please refer to Figure 3 After the wire 50 is welded, the transparent heating film is further provided with a second protective layer 51 or is solidified by using an RTV sealant, so as to protect the welding position of the wire 50 and achieve the effects of sealing and insulation. The welding position is covered by the second protective layer 51, and the second protective layer 51 completely covers the relief hole 41. The second protective layer 51 is made of a silica gel layer and is directly vulcanized on the first protective layer 40.

[0043] Please refer to Figure 6 The surface of the transparent base layer 10 away from the electrode layer 20 is provided with a second protective film 70. When it is needed to be used, the second protective film 70 is torn off, and then the second protective film 70 is pasted to a required position by using double-sided adhesive. The second protective film 70 can be made of a PET layer. Please refer toFigure 7 In another way, the transparent base layer 10 is provided with a sticking layer 80 away from the surface of the electrode layer 20, and the surface of the sticking layer 80 is covered with a tearable layer 90, wherein the tearable layer is made of release paper, and the transparent heating film is pasted to the desired position by removing the tearable layer 90.

[0044] In summary, the transparent heating film of the present application can be directly pasted on the transparent glass or mirror, and the heat generated by the heating film can prevent the glass from fogging. The conductive layer cooperates with the electrode layer to achieve more uniform heating of the transparent base layer, and the first protective layer can better protect the conductive layer or the electrode layer to improve the service life.

[0045] The present application has been described above in conjunction with the drawings, and it is obvious that the specific implementation of the present application is not limited by the above method. Any non-essential improvement or direct application of the technical scheme of the present application to other occasions is within the scope of protection of the present application.

Claims

1. A transparent heating film, characterized in that, include: A transparent substrate, wherein the transparent substrate is conductive; The electrode layer has two electrodes, both of which are disposed on the transparent substrate; A conductive layer is disposed on the electrode layer; A first protective layer, wherein the first protective layer completely covers the conductive layer or the conductive layer and the electrode layer; A first protective film is disposed on the transparent base layer and located on one side of the electrode layer; the first protective film is disposed between the two electrode layers; the first protective film is disposed before the electrode layers are disposed. The transparent substrate has two first regions on one side surface for setting the electrode layer, and the two first regions are close to any opposite edge of the transparent substrate. The two electrode layers are respectively disposed in the two first regions and are made of silver paste layer, and the first protective layer completely covers the first region; the conductive layer is made of copper foil layer.

2. The transparent heating film according to claim 1, characterized in that, It also includes two wires, which are respectively connected to the conductive layer.

3. The transparent heating film according to claim 1, characterized in that, The transparent substrate is made of any one of the following: ITO film, nano silver film, PEDOT film, and CNT film.

4. The transparent heating film according to claim 1, characterized in that, The first protective layer is a silicone layer.

5. The transparent heating film according to claim 1, characterized in that, An adhesive layer is disposed on the surface of the transparent substrate away from the electrode layer, and the surface of the adhesive layer is covered with an easy-tear layer.

6. The transparent heating film according to claim 1, characterized in that, A second protective film is provided on the surface of the transparent substrate away from the electrode layer.

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