TWI585276B - Suspended ceiling with eco-friendly ceiling panels - Google Patents

Description

Energy-saving light steel frame ceiling and ceiling block

The invention relates to a light steel frame ceiling and a ceiling block thereof, in particular to an energy-saving light steel frame ceiling capable of assisting indoor cooling.

According to the general office building, there are many light steel frame ceilings in the room. In addition to the decorative effect, the ceiling should be insulated, that is, the thermal energy absorbed by the roof, so it is often selected from the thermal conductivity. Low sheet, such as PVC plastic sheet or plasterboard. Early PVC plastic sheets were light and inexpensive, so they were widely used; however, based on the emphasis on public safety, PVC plastic sheets with no fireproof properties were gradually replaced by gypsum boards with fireproof properties. However, whether using PVC plastic board or gypsum board, the insulation effect of the ceiling is still limited, and the indoor air in summer is still mainly relying on the cold air installed in the room to cool down. I know that the power consumption of air-conditioning is quite large, especially in the summer, the monthly electricity consumption is quite large, and the temperature of the indoor air-conditioning operation is only 1 °C, and the increase in electricity costs will be considerable.

The present invention provides a light steel frame ceiling that includes a light steel frame and a plurality of ceiling tiles assembled on the light steel frame. Each ceiling tile includes a metal thermally conductive substrate, a thermal barrier coating, and a ceramic thermally conductive coating. Wherein, the top surface of the metal heat conductive substrate faces the roof, and the bottom surface faces the room. The heat insulating coating is formed on a top surface of the metal heat conductive substrate to block heat energy transfer between the roof and the room; and the ceramic heat conductive coating is formed on a bottom surface of the metal heat conductive substrate to lift the metal heat conductive substrate Thermal conductivity.

Preferably, the metal thermally conductive substrate is made of aluminum or an aluminum alloy.

Preferably, the component of the thermal barrier coating is based on an organic resin and is doped with an inorganic thermal insulation powder.

Preferably, the inorganic heat insulating powder in the composition of the heat insulating coating layer comprises cerium oxide.

Preferably, the organic resin in the composition of the thermal barrier coating refers to an acrylic resin.

Preferably, the ceramic thermal conductive coating is made of an inorganic resin and is doped with an inorganic thermally conductive powder.

Preferably, the inorganic resin in the composition of the ceramic thermally conductive coating means an inorganic resin prepared by a sol-gel method.

Preferably, the inorganic thermally conductive powder system in the composition of the ceramic thermally conductive coating is selected from the group consisting of graphite carbon, graphene, titanium dioxide, tantalum carbide, and mica.

Preferably, the ceramic thermally conductive coating has a thickness between 10 μm and 30 μm.

Through the above arrangement, the light steel frame ceiling of the invention can be matched with the air convection of the indoor fan to reduce the temperature in the air-conditioned room and achieve the purpose of saving energy.

Other inventive aspects and more detailed technical and functional descriptions of the present invention are disclosed in the following description.

100‧‧‧Light steel frame ceiling

1‧‧‧Light steel frame

10‧‧‧ box

2‧‧‧Ceiling tiles

21‧‧‧Metal heat-conducting substrate

22‧‧‧Insulation coating

23‧‧‧Ceramic thermal coating

3‧‧‧Indoor fans

4‧‧‧Air conditioner

The first figure is a schematic diagram of the application of the energy-saving light steel frame ceiling of the present invention in an air-conditioned room.

The second figure is a side view of one of the ceiling tiles of the energy-saving light steel frame ceiling of the first figure.

The first figure shows a preferred embodiment of the energy-saving light steel frame ceiling 100 of the present invention applied to a cold air room, wherein the light steel frame ceiling 100 is mainly used to match an indoor fan 3 to assist the indoor air conditioner 4 to lower the indoor temperature. In particular, the light steel frame ceiling 100 generally includes a light steel frame 1 and a plurality of ceiling tiles 2 assembled within the frame 10 of the light steel frame 1. As shown in the second figure, each of the ceiling blocks 2 generally includes a three-layer structure such as a metal heat conductive substrate 21, a heat insulating coating 22, and a ceramic heat conductive coating 23.

In detail, the top surface of the metal heat conductive substrate 21 faces the roof, and the bottom surface faces the room. The material of the metal heat conductive substrate 21 is preferably selected from aluminum or aluminum alloy because of its advantages of light weight, good thermal conductivity, and low cost.

The heat insulating coating 22 is formed on the top surface of the metal heat conductive substrate 21 by a process such as spraying or shower coating to block heat energy transfer between the roof and the room. For the purpose of effective heat insulation, the component of the thermal barrier coating 22 is made of an organic resin and is doped with an inorganic heat insulating powder. In the preferred embodiment, the organic resin is selected from environmentally friendly aqueous acrylic resins, and the inorganic thermal insulation powder system is selected from cerium oxide. Among them, the water-based acrylic resin is more friendly to the environment than other resins such as silicone rubber, PU resin or epoxy resin, and the cerium oxide is a nano-hollow heat-dissipating material, which can effectively block the transfer of heat energy. Thereby, the thermal barrier coating 22 can effectively reduce the heat transfer of the roof to the indoors in the summer, and prevent the heat energy loss in the room during the cold winter.

The ceramic heat conductive coating 23 is formed on the bottom surface of the metal heat conductive substrate 21 by a process such as spraying or shower coating to assist the heat absorption or heat dissipation of the metal heat conductive substrate 21, so that the metal heat conductive substrate 21 exerts the maximum heat conduction effect. In other words, the thermal conductivity of the metal heat conductive substrate 21 is improved. In order to effectively help the heat conduction, the ceramic thermal conductive coating 23 is made of an inorganic resin and is doped with an inorganic heat conductive powder. In the preferred embodiment, the inorganic resin means an inorganic resin produced by a sol-gel method (Sol-Gel). Among them, the sol-gel is a state in which a cerium oxide or a metal oxide gradually forms a gel (Gel) from a solution state by hydrolysis, condensation, polymerization, etc., and becomes porous and has a high surface area after solidification. grid. The ceramic heat conductive coating 23 is an inorganic resin formed by introducing the inorganic heat conductive powder in a film formation process by a sol-gel method. The inorganic heat conductive powder is preferably selected from the group consisting of graphite carbon, graphene, titanium dioxide, tantalum carbide, and mica to impart good heat conduction to the ceramic heat conductive coating 23.

Referring to the second figure, it is merely an exaggerated illustration of the structure of the ceiling tile 2. In fact, the thickness of the ceiling tile of the present invention is designed to be about 0.6 mm; the thickness of the thermal barrier coating 22 is between 0.2 mm and 0.5 mm, preferably between 0.3 mm and 0.4 mm. The thickness of the ceramic thermally conductive coating 23 is very thin, only between 10 μm and 30 μm, preferably between 15 μm and 20 μm. However, although the ceramic thermally conductive coating 23 is thin in thickness, it is made of a ceramic material, which is excellent in heat resistance and excellent in rigidity.

It is worth noting that the gypsum board used in the conventional ceiling has an aluminum foil layer on its top surface as an effect of isolating radiant heat. However, the metal thermal conductivity of the preferred embodiment Although the plate 21 is made of an aluminum alloy, it is provided below the heat-insulating coating 22, and only provides a supporting effect, and does not provide a heat insulating effect. Conversely, the metal thermally conductive substrate 21 is supplemented by the ceramic thermal conductive coating 23 by its excellent heat transfer characteristics to accelerate the heat exchange of the indoor air. In this way, the space in the air-conditioned room is not quickly reached the average temperature, and thus the overall indoor temperature is lowered. It has been experimentally confirmed that the air convection of the light steel frame ceiling 100 of the present invention in combination with an indoor fan (for example, a ceiling fan or a circulation fan) in the air-conditioned room can reduce the indoor temperature by about 1 to 3 degrees, so that the electricity cost can be saved. Quite considerable, and more importantly, the goal of saving energy.

In any event, anyone can obtain sufficient teaching from the description of the above examples, and it is understood that the present invention is indeed different from the prior art, and is industrially usable and progressive. It is the invention that has indeed met the patent requirements and has filed an application in accordance with the law.

100‧‧‧Light steel frame ceiling

1‧‧‧Light steel frame

10‧‧‧ box

2‧‧‧Ceiling tiles

3‧‧‧Indoor fans

4‧‧‧Air conditioner

Claims (10)

A ceiling tile for mounting on a light steel frame in a room, the ceiling block comprising a metal heat conductive substrate, a heat insulation coating and a ceramic heat conductive coating, wherein: the metal heat conductive substrate is located in the heat insulation coating Between the layer and the ceramic thermal conductive coating, and the top surface thereof faces the roof, and the bottom surface faces the indoor; the heat insulating coating is formed on the top surface of the metal heat conductive substrate to block heat energy transfer between the roof and the room; The ceramic thermal conductive coating is formed on the bottom surface of the metal thermal conductive substrate to enhance the thermal conductivity of the metal thermal conductive substrate. The ceiling tile according to claim 1, wherein the metal heat conductive substrate is made of aluminum or an aluminum alloy. The ceiling tile according to claim 1, wherein the component of the thermal barrier coating is an organic resin body and is doped with an inorganic heat insulating powder. The ceiling block of claim 3, wherein the inorganic heat insulating powder in the composition of the heat insulating coating comprises cerium oxide. The ceiling tile of claim 4, wherein the organic resin in the composition of the thermal barrier coating refers to an acrylic resin. The ceiling block according to claim 1, wherein the ceramic heat conductive coating is made of an inorganic resin and is doped with an inorganic heat conductive powder. The ceiling block according to claim 6, wherein the inorganic resin in the component of the ceramic heat conductive coating means an inorganic resin produced by a sol-gel method. The ceiling tile of claim 7, wherein the inorganic thermally conductive powder system in the composition of the ceramic thermal conductive coating is selected from the group consisting of graphite carbon, graphene, titanium dioxide, tantalum carbide, and mica. The ceiling tile of claim 8, wherein the ceramic thermally conductive coating has a thickness between 10 μm and 30 μm. A light steel frame ceiling comprising a light steel frame and a plurality of ceiling tiles according to any one of claims 1 to 9, wherein the ceiling tiles are assembled on the light steel frame.