Composite heating glass

Abstract

The utility model discloses composite heating glass. The composite heating glass comprises a glass substrate, a heating layer and a heat insulation layer, the heating layer is positioned between the glass substrate and the heat insulation layer; and the heat insulation layer is formed by compounding a flexible nano silicon heat insulation film and a graphite heat dissipation film. Heat generated by the heating glass can be prevented from being dissipated outwards through the heat insulation layer, and the requirement for continuous heating is reduced. The heat insulation layer is formed by compounding a flexible nanometer silicon heat insulation film and a graphite heat dissipation film, heat conduction and radiation are effectively blocked, the influence of external high temperature or an internal heat source is reduced, meanwhile, local heat can be rapidly diffused along a plane, heat accumulation is avoided, and the overall heat dissipation efficiency is improved. And through material characteristic complementation, the double mechanisms of blocking and dredging are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to glass heating technical field, concretely relates to a composite heating glass suitable for the field such as automobile glass, building glass and household appliance. BACKGROUND

[0002] Glass is noncrystalline inorganic nonmetallic material, generally is with a variety of inorganic mineral (such as quartz sand, borax, boric acid, barite, barium carbonate, limestone, feldspar, soda ash etc.) as main raw material, additionally add a small amount of auxiliary raw material and make, with the wide application of glass, the function of glass is more and more, such as heating glass is used to make glass surface not to form water mist.

[0003] The existing heating glass has poor heat insulation effect, and heat dissipates outward seriously, so it needs continuous heating. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem to provide a composite heating glass, and the heat generated by the heating glass is blocked from dissipating outward, and the need for continuous heating is reduced.

[0005] In order to solve the above technical problems, the utility model adopts the following technical scheme: a composite heating glass, including glass base body, heating layer and heat insulation layer, the heating layer is located between the glass base body and the heat insulation layer,

[0006] The heat insulation layer is composed of flexible nanometer silicon heat insulation film and graphite heat dissipation film.

[0007] Further, the glass base body is tempered glass or high borosilicate glass, and the tempered glass or high borosilicate glass is coated with an antireflection coating.

[0008] Further, the heating layer includes a conductive heating layer and an electrode system, the conductive heating layer includes a metal nitride layer and a transparent conductive network layer, the metal nitride layer is coated on the surface of the glass base body, and the transparent conductive network layer is arranged on the surface of the metal nitride layer, and the electrode system includes a bus electrode and a distributed electrode.

[0009] Further, the metal nitride layer is formed by aluminum nitride or titanium nitride through magnetron sputtering, and the transparent conductive network layer is a silver nanowire or metal mesh structure.

[0010] Further, the bus electrode is formed by copper foil or silver paste printing, arranged on both sides of the transparent conductive network layer, and connected to an external power supply, and the distributed electrode is fixed on the surface of the transparent conductive network layer.

[0011] Further, the grid line width of the metal mesh structure is less than or equal to 10 microns.

[0012] Further, a temperature control module is also included, which integrates a temperature sensor and a PID controller.

[0013] The present application has the following advantages:

[0014] 1) The heat insulation layer can block the heat generated by the heating glass from dissipating outward, reducing the need for continuous heating.

[0015] 2) The heat insulation layer is composed of a flexible nano-silicon heat insulation film and a graphite heat dissipation film, effectively blocking heat conduction and radiation, reducing the influence of external high temperature or internal heat source, and rapidly diffusing local heat along the plane to avoid heat accumulation and improve overall heat dissipation efficiency. Through complementary material properties, a "blockage-dredging" dual mechanism is achieved.

[0016] 3) The setting of the metal nitride layer and the transparent conductive network layer of the heating layer can simultaneously meet the requirements of electrical heating efficiency, optical transparency, stability and functionality. BRIEF DESCRIPTION OF DRAWINGS

[0017] The present application will be further described below in conjunction with the drawings and examples.

[0018] Figure 1 The present application is a structural schematic diagram.

[0019] Figure 2 The present application is a heat insulation layer schematic diagram.

[0020] Figure 3 The present application is a heating layer schematic diagram of Example 2.

[0021] Figure 4 The present application is a structural schematic diagram of Example 3. DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described in detail below through specific embodiments.

[0023] Example 1

[0024] Reference Figure 1 and Figure 2 The present application is a composite heating glass, which includes a glass substrate 1, a heating layer 2 and a heat insulation layer 3, the heating layer 2 is located between the glass substrate 1 and the heat insulation layer 3.

[0025] In this embodiment, the heat insulation layer 3 is composed of a flexible nano-silicon heat insulation film 31 and a graphite heat dissipation film 32. The flexible nano-silicon heat insulation film 31 is in contact with the heating layer 2.

[0026] Flexible nano-silicon thermal insulation film 31 is a functional film prepared on the basis of nanotechnology. Based on nanoscale silicon oxide, a flexible substrate (such as PET, etc.), the addition of functional additives (such as reinforcing phase, infrared reflector, interface modifier, etc.) is used to decompose and polymerize the metal organic compound solution into sol by sol-gel method, and then the multi-level pore structure is formed by immersion and heat treatment, and finally the film is formed by spin coating.

[0027] The porous structure of nano-silicon effectively blocks heat conduction and radiation, reduces the influence of external high temperature or internal heat source, and the high thermal conductivity of graphite film rapidly diffuses local heat along the plane to avoid heat accumulation and improve overall heat dissipation efficiency.

[0028] The light weight of nano-silicon combined with the flexibility of graphite film can be attached to complex curved surfaces.

[0029] Nano-silicon is resistant to high temperature, and graphite film has strong oxidation resistance. The composite layer remains stable in performance under harsh environments such as high temperature and vibration.

[0030] The thermal insulation layer of the embodiment realizes the "blocking-diffusing" dual mechanism through complementary material properties.

[0031] The glass substrate of the embodiment is tempered glass or high borosilicate glass; the surface of the tempered glass or high borosilicate glass is coated with an anti-reflective coating.

[0032] Example 2

[0033] The difference between the embodiment and the embodiment is that the heating layer 2 in the embodiment includes a conductive heating layer and an electrode system. The conductive heating layer includes a metal nitride layer 21 and a transparent conductive network layer 22.

[0034] The metal nitride layer 21 is plated on the surface of the glass substrate 1 by magnetron sputtering with aluminum nitride or titanium nitride, and the thickness is 50-100 nm.

[0035] The transparent conductive network layer 22 is deposited on the surface of the metal nitride layer using silver nanowires or metal mesh structure, the line width is 8 μm, and the pitch is 2 mm.

[0036] The embodiment reduces color cast by absorbing infrared light through the metal nitride layer, and realizes high light transmittance and low resistance by cooperating with the transparent conductive grid.

[0037] The metal nitride layer serves as the main heating layer, and uses its high resistance characteristics to convert electrical energy into heat energy.

[0038] The transparent conductive network layer serves as the electrode or current diffusion layer, and uniformly distributes the current to the metal nitride layer while maintaining high light transmittance.

[0039] The electrode system of the embodiment comprises the bus electrode 231 and the distributed electrode 232. The bus electrode 231 is formed by copper foil or silver paste printing, arranged at the two side edges of the transparent conductive network layer 22, and connected to an external power supply. The distributed electrode 232 is fixed on the surface of the transparent conductive network layer 22 by a soldering process or a printing process, so as to improve the heating uniformity, and the distributed electrode 232 is a densely arranged strip electrode.

[0040] The copper foil electrode is fixed on both ends of the grid by a glass soldering process, and the solder can be Ag-Cu-Ti alloy. When a 12V power supply is connected for testing, the temperature is raised to 40℃ within 5 minutes, and the temperature difference is less than 2℃.

[0041] Embodiment 3

[0042] The embodiment is also provided with a temperature control module; the temperature control module is integrated with a temperature sensor 41 and a PID controller 42. The PID controller is a microcontroller integrated on the edge of the glass, which is built-in with a PID algorithm and is electrically connected to the heating layer. The temperature sensor is distributed on the surface and edge of the glass, which can monitor the temperature in real time and feed back to the temperature control module.

[0043] In the embodiment, the temperature control module is used for heating, temperature measurement and temperature control, which simplifies the installation process; the PID algorithm is used for dynamically adjusting the power, and the temperature difference is controlled within ±1℃.

[0044] The above is only a preferred embodiment of the present application, and is not used to limit the present application. Those skilled in the art can make various modifications or equivalent replacements to the present application within the spirit and protection scope of the present application, and such modifications or equivalent replacements should also be considered as falling within the protection scope of the technical scheme of the present application.

Claims

1. A composite heating glass, characterized in that: It includes a glass substrate (1), a heating layer (2) and a heat insulation layer (3); the heating layer (2) is located between the glass substrate (1) and the heat insulation layer (3); The heat insulation layer (3) is composed of a flexible nano-silicon heat insulation film (31) and a graphite heat dissipation film (32).

2. The composite heating glass according to claim 1, characterized in that: The glass substrate is tempered glass or borosilicate glass; the surface of the tempered glass or borosilicate glass is coated with an anti-reflective coating.

3. The composite heating glass according to claim 1, characterized in that: The heating layer (2) includes a conductive heating layer and an electrode system; the conductive heating layer includes a metal nitride layer (21) and a transparent conductive network layer (22); the metal nitride layer (21) is deposited on the surface of the glass substrate (1), and the transparent conductive network layer (22) is disposed on the surface of the metal nitride layer (21); the electrode system includes a bus electrode (231) and a distributed electrode (232).

4. The composite heating glass according to claim 3, characterized in that: The metal nitride layer (21) is formed by magnetron sputtering of aluminum nitride or titanium nitride; the transparent conductive network layer (22) is made of silver nanowires or a metal mesh structure.

5. The composite heating glass according to claim 3, characterized in that: The bus electrode (231) is formed by printing copper foil or silver paste and is disposed on both sides of the transparent conductive network layer (22) and connected to an external power source; the distributed electrode (232) is fixed on the surface of the transparent conductive network layer (22).

6. The composite heating glass according to claim 4, characterized in that: The mesh line width of the metal mesh structure is ≤10μm.

7. The composite heating glass according to claim 1, characterized in that: It also includes a temperature control module, which integrates a temperature sensor (41) and a PID controller (42).

Images