阅读说明：本技术 双层镜面板发热体 (Double-layer mirror surface plate heating body ) 是由 冯冠平 冯欣悦 张涛 吴伟平 于 2019-10-23 设计创作，主要内容包括：本发明涉及一种双层镜面板发热体。双层镜面板发热体包括发热膜和相隔放置的镜面板所形成的双层镜面板,其中,双层镜面板的内侧面为镜面,发热膜置于相隔放置的镜面板的外侧面。本发明的双层镜面板发热体,能够有效提升固定面积的平面空间内产品的发热功率,并且发热膜之间的热辐射影响低。(The invention relates to a double-layer mirror surface plate heating body. The double-layer mirror panel heating body comprises a heating film and a double-layer mirror panel formed by the mirror panel placed at intervals, wherein the inner side face of the double-layer mirror panel is a mirror face, and the heating film is placed on the outer side face of the mirror panel placed at intervals. The double-layer mirror surface plate heating body can effectively improve the heating power of a product in a plane space with a fixed area, and the influence of heat radiation among heating films is low.)

1. A heating body with a double-layer mirror surface plate is characterized by comprising a heating film and the double-layer mirror surface plate formed by the mirror surface plates which are arranged at intervals, wherein the inner side surface of the double-layer mirror surface plate is a mirror surface, and the heating film is arranged on the outer side surface of the double-layer mirror surface plate; preferably, the inner side surface of the double-layer mirror surface plate is a mirror surface, and the outer side surface of the double-layer mirror surface plate is a non-mirror surface; more preferably, the inner side and the outer side of the double-layer mirror surface plate are both mirror surfaces.

2. A heat-generating body as described in claim 1, wherein the heat-generating film is attached to an outer side surface of a double-layer mirror plate.

3. A heat-generating body as described in claim 3, wherein the heat-generating film is pasted to an outer side face of the double-layer mirror plate by a hot melt adhesive, a thermosetting adhesive, a photo-setting adhesive and/or a pressure-sensitive adhesive.

4. A heat-generating body as described in claim 3, wherein the heat-generating film is attached to an outer side face of the two-layer mirror plate by epoxy resin, epoxy resin derivatives, acrylic resin derivatives, polyurethane and/or polyurethane derivatives.

5. A heat-generating body as claimed in any one of claims 1 to 4, wherein the mirror-side heat quantity of the double-layer mirror-surface plates is substantially radiated by convection of gas heat between the mirror-surface plates.

6. A heat-generating body as described in any one of claims 1 to 5, wherein a distance between the mirror plates is 2cm or more.

7. A heat-generating body as claimed in claim 6, wherein a distance between the mirror plates is 3 to 5 cm.

8. A heat-generating body as described in any one of claims 1 to 7, wherein the mirror surface plate is selected from a mirror surface metal plate or an infrared-proof glass plate, preferably, the mirror surface plate is selected from a mirror surface aluminum plate or a mirror surface copper plate.

9. A heat-generating body as described in any one of claims 1 to 8, wherein the heat-generating film is a graphene heat-generating film or a carbon fiber heat-generating film; preferably, the heating film is a graphene heating film.

10. A heating apparatus comprising the double-layer mirror-surface plate heating element according to any one of claims 1 to 9.

Technical Field

The invention relates to the field of electric heating, in particular to a double-layer mirror surface plate heating body.

Background

Chinese patent ZL201510203320.1 discloses a low-voltage transparent electrothermal film, which comprises a transparent base material, a transparent conductive layer and electrodes; the transparent conducting layer is formed on at least one side of the transparent substrate; the electrodes are composed of bus bars and a plurality of inner electrodes, and the inner electrodes extend oppositely from the bus bars to form interdigital electrodes; the electrode is located on and in electrical contact with the transparent conductive layer. The resistance of the transparent conducting layer between the two electrodes is reduced by arranging the bus bar and the inner electrode and reducing the distance between the two electrodes, so that low-voltage power supply can be used, daily lithium battery voltage can be normally adopted, and rapid heating to 90-180 ℃ can be achieved. When the graphene is selected as the transparent conducting layer, two sets of electrodes can be arranged on two sides of the graphene, and the inner electrodes of the two sets of electrodes are staggered by a certain distance, so that the heating uniformity can be further ensured, and the heating temperature can be increased under the same low voltage.

The heat transfer mainly comprises three basic modes, namely heat conduction, heat convection and heat radiation, wherein the heat conduction and the heat radiation are the main modes for heating the surrounding space by the transparent graphene heating film, and the heat radiation is the most main mode for transferring heat from the graphene heating film to the surrounding space.

At present, to the product that provides the heat through graphite alkene heating film, adopt to increase graphite alkene heating film number usually, the mode that many heating films generate heat simultaneously increases the heating power of product, but the graphite alkene heating film that increases can only adopt the mode of placing of tiling, that is to say the area that needs the increase product places more graphite alkene heating film and can increase heating power. If the added graphene heating films are overlapped, because the graphene has strong heat radiation, the base materials (PET, PEN and PI) of the graphene heating films have low high-temperature resistance, and the two films are extremely easy to mutually influence and damage. Consequently to the fixed, unable product of setting up the graphite alkene heating film that the tiling was placed of area, the power that generates heat receives very big restriction, hardly further improves.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the heating mode of the existing heating film greatly limits the plane heating power with fixed area, and if the heating power of a product using the heating film is increased, the plane area of the product is inevitably required to be increased.

The invention aims to solve the technical problems and designs a double-layer mirror-surface plate heating body, wherein heating films are arranged at intervals, and a mirror-surface plate structure design is adopted between the heating films, so that the heating films and the mirror-surface plate form an integral heating module, and the heat radiation effect of one side of a mirror surface of the mirror-surface plate is low, and the heating film on the opposite side cannot be influenced. Through the structural design, on the premise that the plane area of the heating film heating product is not increased, the heating power is improved by about 1 time, so that the product heated by the heating film can realize high-power heating in a small space.

Specifically, the invention provides the following technical scheme:

the invention provides a double-layer mirror panel heating body which comprises a heating film and a double-layer mirror panel formed by mirror panels arranged at intervals, wherein the inner side surface of the double-layer mirror panel is a mirror surface, and the heating film is arranged on the outer side surface of the double-layer mirror panel; preferably, the inner side surface of the double-layer mirror surface plate is a mirror surface, and the outer side surface of the double-layer mirror surface plate is a non-mirror surface; more preferably, the inner side and the outer side of the double-layer mirror surface plate are both mirror surfaces.

Preferably, in the above heat-generating body, the heat-generating film is attached to an outer side surface of the double mirror plate.

Preferably, in the heating element described above, the heating film is attached to the outer side surface of the double-layer mirror panel by using a hot melt adhesive, a thermosetting adhesive, a photo-curing adhesive and/or a pressure-sensitive adhesive.

Preferably, in the above heat generating body, the heat generating film is attached to the outer side surface of the double mirror plate by epoxy resin, epoxy resin derivatives, acrylic resin derivatives, polyurethane, and/or polyurethane derivatives.

Preferably, in the above heat generating body, the mirror-surface-side heat quantity of the double-layer mirror-surface plates is substantially radiated by convection of gas heat between the mirror-surface plates.

Preferably, in the above heat-generating body, the distance between the mirror plates is 2cm or more.

Preferably, in the above heat-generating body, a distance between the mirror plates is 3 to 5 cm.

Preferably, in the above heat-generating body, the mirror plate is selected from a mirror metal plate or an infrared-proof glass plate.

Preferably, in the above heat-generating body, the mirror plate is selected from a mirror aluminum plate or a mirror copper plate.

Preferably, in the above heating element, the heating film is a graphene heating film or a carbon fiber heating film; preferably, the heating film is a graphene heating film.

In another aspect, the invention provides a heating device, which comprises the double-layer mirror panel heating element.

The beneficial effects of the invention include:

1. the heating device adopts a heating mode of oppositely stacking the double layers of heating films, so that the heating power of a product using the heating films in a plane space with a fixed area is doubled.

2. The characteristics that the mirror surface plate has low heat radiation effect are utilized, so that the heating films stacked in the double-layer space can independently heat, and the double-layer heating films are prevented from being damaged due to mutual heat radiation.

Drawings

Fig. 1 is a single-layer mirror-surface plate graphene heating element in test 1, in which 1 is a graphene heating film and 2 is a mirror-surface aluminum plate.

Fig. 2 is a double-layer non-mirror surface plate graphene heating element in test 2, in which 1 is a graphene heating film, 2 is a mirror surface aluminum plate, and 3 is a non-mirror surface coating.

Fig. 3 is a double-layer mirror-surface plate graphene heating element in test 3, in which 1 is a graphene heating film and 2 is a mirror-surface aluminum plate.

Fig. 4 is a double-layer mirror-surface plate graphene heating element in test 4, in which 1 is a graphene heating film, 2 is a mirror-surface aluminum plate, and 3 is a non-mirror-surface coating.

Detailed Description

As mentioned above, when the heating film is used for heating, the existing heating film can only be spread out in a plane due to the influence of heat radiation, and the manufactured product has the problems of large plane size and low heating power. The heating films are arranged at intervals, the space layout of the films is optimized, and the mutual influence of the heating films is further prevented through the mirror structure design, so that the heating power of the product is improved.

Herein, the term "heat radiation" refers to a phenomenon in which an object radiates electromagnetic waves due to having a temperature, and is one of 3 ways of heat transfer.

The term "spaced apart" refers to the placement of the heat generating films facing each other at a distance.

The term "inner side" refers to the side of two plates that are adjacent to each other; the term "outer side" refers to the side of the two plates that is away from each other.

According to the preferable technical scheme, the graphene heating film is placed on the surface of the mirror panel, the mirror panel with the graphene heating film is placed at intervals, one side of the graphene heating film faces outwards, and the other side of the mirror face faces inwards, so that the double-layer mirror panel graphene heating body is obtained.

Paste the graphite alkene heating film and cover on aluminum plate, because the two area of contact is big, therefore heat-conduction is main heat transfer way between graphite alkene and the aluminum plate, aluminum plate has better coefficient of heat conductivity, consequently graphite alkene heating film is lower with aluminum plate temperature difference, consequently can regard as one with graphite alkene heating film and mirror surface aluminum plate as a whole that generates heat in this structure, this holistic one side is because mirror surface structure produces the heat radiation outward hardly, and the opposite side is because graphite alkene non-mirror surface structure of own, consequently can launch stronger heat radiation.

According to the preferable technical scheme, the graphene heating film is placed on the surfaces of the mirror plates with the mirror surfaces on the two sides, the mirror plates with the graphene heating film placed are placed oppositely, one side of the graphene heating film faces outwards, the distance between the two mirror plates is more than 3cm, and the double-layer reflecting plate graphene heating body is obtained.

When the distance between the two mirror panels is smaller, the heat convection channel in the mirror panel is reduced, the wind resistance of the mirror panel is greatly increased, the heat convection effect of the whole mirror panel is greatly reduced, and the temperature of the mirror panel is increased to cause the damage of the diaphragm. In practical application, the space inside the product is limited, 3cm is the most space-saving, and the optimal distance of the graphene heating film cannot be influenced. The greater the distance between the two plates, the less the interaction, if possible.

According to the preferred technical scheme, the graphene heating film is connected with a power line, and insulation treatment is carried out on the connection position; and fixing the connected graphene heating film on a double-side mirror panel (any metal plate such as copper and aluminum, and infrared-proof glass) by using an adhesive (epoxy resin glue, UV glue, optical glue and the like).

In the preferred technical scheme of the invention, the double-layer mirror metal plates coated with the graphene heating film are oppositely arranged, so that one side coated with the graphene heating film faces outwards, and the distance between the double-layer mirror metal plates is more than 3 cm. Because the mirror surface metal plate has the advantages of basically not releasing far infrared rays and low heat radiation intensity, the double-layer graphene heating film can not generate heat radiation influence mutually. There is a bit distance in the middle of the double-deck mirror surface metal sheet, can make the heat of mirror surface metal sheet dispel the heat through the mode of thermal convection basically, does not produce the influence each other to can make original plane power density promote about one time.

In the preferred technical scheme of the invention, the graphene heating film can be prepared by adopting a preparation method disclosed in the patent ZL 201510203320.1. Bonding the transparent substrate and the transparent conductive layer (namely the graphene film) together; the electrode is manufactured on the transparent conductive layer by adopting a method of directly printing conductive slurry or evaporating a conductive material, and the electrode pattern is designed according to the heating requirement.

In order to make the objects, technical solutions and advantages of the present invention more clearly shown, the following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples.