JP3920674B2 - Sheet heating device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sheet heating device, and more particularly to a sheet heating device using a sheet heating element made of a graphite sheet.
[0002]
[Prior art]
When a current is passed through a resistor having a predetermined resistance value, Joule heat is generated to generate heat. Therefore, apparatuses using such heat generated by Joule heat are widely used. That is, an electric stove and an electrothermal heating device have been conventionally used.
[0003]
[Problems to be solved by the invention]
A conventional heating device using this type of electric heating has a drawback that the dimension in the thickness direction becomes large because, for example, a coil of nichrome wire is arranged in a predetermined arrangement. Therefore, for example, a heat generating device is known in which a heat generating device is assembled by a resistor plate having a ribbon shape. Also here, the resistance plate has a thickness of several millimeters and is attached to the base via the insulating means, so that there is a drawback that the dimension in the thickness direction or the height direction becomes large.
[0004]
The present invention has been made in view of such problems, and an object of the present invention is to provide a planar heating device in which the dimension in the thickness direction or the height direction is extremely small.
[0005]
[Means for Solving the Problems]
The main invention of the present application is a sheet heating element obtained by punching a graphite sheet rolled into a sheet shape by rolling carbon graphite ,
An insulating means made of heat-resistant resin film that insulates as being bonded to the surface of the planar heating element enveloping the said surface-like heating element,
Having an electrode attached to an end of the planar heating element, energizing means for energizing the planar heating element ;
Together with the planar heating element is bonded to the rear surface wrapped by the insulating unit, and radiator panels that radiate heat from the surface,
A frame attached to the outer periphery of the heat dissipating panel and provided with a suspension means;
A spacer that is attached so as to protrude from the back surface of the heat dissipating panel and forms a predetermined space with the wall surface when suspended.
It is related with the planar heat generating apparatus which comprises.
Here, a predetermined display may be provided on the surface of the heat dissipating panel so that it also serves as a decoration when hung on the wall.
[0007]
Another main invention of the present application is a sheet heating element obtained by punching a graphite sheet rolled into a sheet shape by rolling carbon graphite ,
Insulating means comprising a heat-resistant resin film that is bonded to the surface of the sheet heating element to insulate the sheet heating element,
Having an electrode attached to an end of the planar heating element, energizing means for energizing the planar heating element;
The planar heating element wrapped by the insulating means is received in a recess formed on the surface, and is made of a resin molded body, and a tray-like container that radiates heat from the outer surface ;
The natural aggregate blended light resistance acrylic resin to radiate heat from the surface to cover the recess in which the planar heating element is accepted, a decorative panel forming a pattern on the outer surface,
It is related with the planar heat generating apparatus which comprises.
Here, the tray-like container may be made of an epoxy resin.
[0008]
Still another main invention of the present application is a sheet heating element obtained by punching a graphite sheet rolled into a sheet shape by rolling carbon graphite,
Insulating means comprising a heat-resistant resin film that is bonded to the surface of the sheet heating element to insulate the sheet heating element,
Having an electrode attached to an end of the planar heating element, energizing means for energizing the planar heating element;
A beverage tray attached to an instrument panel of an automobile so as to be freely drawable and on which the planar heating element wrapped by the insulating means is attached;
A metal heat dissipating panel mounted on the planar heating element mounted on the beverage tray;
It is related with the planar heat generating apparatus which comprises.
Here, the planar heating element and the heat dissipation panel may be substantially circular .
[0009]
DETAILED DESCRIPTION OF THE INVENTION
The invention included in the present application will be described below with reference to the illustrated embodiments. First, a first embodiment will be described with reference to FIGS. The planar heat generating device of this embodiment is a wall-mounted planar heat generating device, and includes a rectangular heat radiating panel 10 as shown in FIGS. 1 to 4, and a peripheral portion of the rectangular heat radiating panel 10. The frame 11 is attached to the frame.
[0010]
The heat radiating panel 10 is preferably composed of an aluminum plate, an aluminum alloy plate, a copper plate, a brass plate, or other metal plate excellent in heat dissipation. And the rectangular planar heating element 15 is joined to the back surface of such a thermal radiation panel 10 as shown in FIG.1 and FIG.2. As shown in FIGS. 5 to 7, the planar heating element 15 is obtained by punching a graphite sheet 16 into a predetermined shape.
[0011]
In general, carbon exists stably in the form of diamond, graphite (graphite) and amorphous carbon. In particular, graphite is black opaque, has a hexagonal crystal structure, and is an electrical and thermal conductor.
[0012]
Such graphite (graphite) exists in nature. And a graphite sheet is obtained by rolling such natural graphite. Further, when an organic synthetic film such as an acrylic resin film using acrylonitrile is baked in the absence of oxygen, a sheet-like graphite is obtained. Sheet-like graphite is used as a raw material for gaskets and packings because it has flexibility and compression elasticity and is familiar with the mating material. Here, the planar heating element 15 is constituted by the graphite sheet 16 by utilizing the electrical characteristics of such a graphite sheet, that is, the property of being a conductor having a predetermined resistance.
[0013]
A wiring pattern 17 is connected to one end of the graphite sheet 16 having a thickness in the range of 0.2 to 2 mm, and electrodes 19 and 20 are attached to the right end of the graphite sheet 16 and the right end of the wiring pattern 17, respectively. And the graphite sheet 16 which attached the wiring pattern 17 and the electrodes 19 and 20 in this way is joined by the pair of upper and lower insulating films 21 and 22, thereby comprising an insulating structure as shown in FIG.
[0014]
Here, as the insulating film 21, various heat-resistant resin films may be used. Moreover, the insulating films 21 and 22 can be comprised with a polyester film. In this case, it is preferable to apply a flame-retardant polyester-based adhesive to the surface in contact with the graphite sheet 16 and bond the insulating films 21 and 22 to be bonded to each other by such an adhesive.
[0015]
As shown in FIGS. 1, 2, and 4, the heat radiating panel 10 to which the heat generating body 15 made of such a graphite sheet 16 is attached has a hanging strap 25 attached to the frame 11. A spacer 26 of a predetermined size is attached to the corner portion. Further, a predetermined display is provided on the surface side of the heat dissipation panel 10 as shown in FIG. Here, the display 27 may be various kinds of paintings, designs, patterns, and other design displays.
[0016]
Such a heat radiation panel 10 is hung along the wall by a hanging strap 25 as shown in FIG. At this time, a space of a predetermined size is secured by the spacer 26 between the back side of the heat dissipation panel 10 and the surface of the wall. When current is passed between the electrodes 19 and 20 of the sheet heating element 15 on the back side of the heat dissipation panel 10, Joule heat is generated by the current flowing in the graphite sheet 16. The heat generated by the planar heating element 16 is radiated through the heat radiating panel 10. Therefore, heat can be generated by the heat dissipation panel 10 which is extremely flat and has a large area heat dissipation surface. The sheet heating device is also used as a decoration means for decorating the wall surface of the room by the display 27.
[0017]
Next, a second embodiment will be described with reference to FIGS. This embodiment is constituted by a planar heating device which is built in the tray-like container 30 and can be carried and moved. That is, a shallow concave portion 31 is formed on the surface of the tray-like container 30 made of a resin molded body such as an epoxy resin, and a draining slit 32 is formed at a predetermined position of the concave portion 31.
[0018]
As shown in FIGS. 12 and 13, the sheet heating element 15 housed in the recess 31 of the tray-like container 30 has a substantially square outer shape and is punched out so as to have a partially circular opening. Consists of. A pair of electrodes 19 and 20 are attached to both sides of the graphite sheet 16 as shown in FIG. Alternatively, as shown in FIG. 13, the graphite sheet 16 is divided by the slits 34, and electrodes 19 and 20 are formed at the divided ends.
[0019]
Then, such a graphite sheet 16 is joined by a pair of upper and lower insulating films 21 and 22 so as to be sandwiched from the upper and lower surfaces as shown in FIG. 11 to form an insulating structure.
[0020]
Such a planar heating element 15 is accommodated in the concave portion 31 of the tray-like container 30, and a decorative panel 33 is attached to the upper side. The decorative panel 33 may be a natural stone-like decorative exterior sheet in which natural aggregate is blended with weather resistant silicon acrylic resin and a stone pattern is formed on the outer surface. Such a decorative sheet may be, for example, a natural stone-like decorative exterior sheet “Relief Wall” (trade name) supplied from Taisei E & L Co., Ltd.
[0021]
Since such a decorative sheet has a thickness of 3 mm or less, for example, 1 to 2 mm, and is very thin and light, it can dissipate the heat of the planar heating element 15 more completely. The portability of the sheet heating device is not impaired.
[0022]
When such a planar heating device is used, the heating device is disposed at a predetermined position, and power is supplied by a power supply means (not shown) via the electrodes 19 and 20 of the planar heating element 15. Thus, the sheet heating element 15 is heated by Joule heat. Then, the heat of the planar heating element 15 is transmitted to the decorative panel 33, the surface of the decorative panel 33 is warmed, and heat is radiated from the surface of the panel 33.
[0023]
Next, a third embodiment will be described with reference to FIGS. This embodiment is adapted to be attached to a cup tray 46 incorporated in a part of an instrument panel 37 of an automobile. That is, a meter mounting portion 38 is provided in front of the driver's seat on the instrument panel 37 of the automobile, and a speedometer for displaying the vehicle speed and a tachometer 40 for displaying the engine speed are mounted on the meter mounting portion 38. ing. On the other hand, a clove box 41 is provided on the left side of the instrument panel 37 and in front of the passenger seat.
[0024]
Various audio devices such as a radio receiver are attached to the center of the instrument panel 37. In addition, a louver 45 constituting an air outlet of the air conditioner is provided on the lower side. A cup tray 46 is attached to the lower side of the louver 45 so as to be drawn out and stored.
[0025]
When the tray 46 is pulled out, as shown in FIGS. 15 and 16, the beverage cup 50 and the beverage can can be held on the tray 46. The intermediate position in the height direction is held by the holding ring 47 so that the beverage cup 50 placed on the cup tray 46 does not fall down.
[0026]
The planar heating element 15 and the heat radiating panel 10 shown in FIGS. 17 and 18 are attached to the bottom of the tray 46. The planar heating element 15 has a substantially circular shape with a lack of a central portion, and has a pattern in which slits 34 extending in the radial direction are formed at predetermined positions in the circumferential direction, and electrodes 19 and 20 are formed on both sides of the slit 34, respectively. Can be installed. Moreover, the graphite sheet 16 is insulated while being sandwiched between a pair of upper and lower insulating films 21 and 22. And the circular heat radiating panel 10 is attached to the upper part of such a planar heating element 15. The heat radiating panel 10 may be made of a material excellent in heat dissipation such as an aluminum plate or an aluminum alloy plate.
[0027]
According to such a cup tray 46, when the tray 46 is pulled out and the graphite sheet 16 is energized through the electrodes 19 and 20 by a switch (not shown), the graphite sheet 16 generates heat. The generated heat is transmitted to the beverage cup 50 and the beverage can through the heat radiating panel 10 so that the beverage can be warmed, or the beverage can be kept warm. Alternatively, it becomes possible to warm and eat instant foods such as cup noodles. Moreover, since the heat is generated by the planar heating element 15 made of the graphite sheet 16, even if such a heating element 15 is provided, the space hardly increases, and it can be compactly incorporated in the instrument panel. It becomes possible.
[0028]
【The invention's effect】
One invention of the present application is a sheet heating element obtained by rolling carbon graphite into a sheet shape and punching it into a predetermined shape, and being joined to the surface of the sheet heating element so as to wrap the sheet heating element. Insulating means comprising a heat-resistant resin film for insulation, an energizing means for energizing the planar heating element having an electrode attached to the end of the planar heating element, and planar heating generated by the insulating means with the body is bonded to the rear surface, and a radiator panel to radiate heat from the surface, is attached to the outer peripheral portion of the radiator panel, and a frame body provided with hanging means, so as to project to the rear surface of the radiator panel mounting And a spacer that forms a predetermined space with the wall surface when suspended .
[0029]
Therefore, according to such a planar heat generating device, a wall-mounted heat generating device in which the dimension in the thickness direction is particularly small is provided.
[0032]
Another main invention of the present application is a sheet heating element obtained by punching a graphite sheet rolled into a sheet shape by rolling carbon graphite into a predetermined shape, and the sheet heating element joined to the surface of the sheet heating element. Insulating means made of a heat-resistant resin film that insulates so as to wrap, an electrode attached to the end of the planar heating element, energizing means for energizing the planar heating element, and the insulating means A sheet heating element is received in a recess formed on the surface, and is made of a resin molded body , covers a tray-like container that radiates heat from the outer surface, and covers the recess in which the sheet heating element is received, and receives heat from the surface. the natural aggregate blended to radiation to light resistance acrylic resin, those comprising a decorative panel forming a pattern on the outer surface.
[0033]
Therefore, according to such a planar heating device, it is possible to provide a heating device that is flat and free to carry, and a planar heating device that can be flexibly adapted to various uses is provided.
[0034]
Still another main invention of the present application is a sheet heating element obtained by punching a graphite sheet rolled into a sheet shape by rolling carbon graphite into a predetermined shape, and the sheet heating element bonded to the surface of the sheet heating element. Insulating means composed of a heat-resistant resin film that wraps and insulates the body, an energizing means having an electrode attached to the end of the planar heating element and energizing the planar heating element, and an automotive instrument panel Beverage tray on which a sheet heating element that can be pulled out freely and wrapped with an insulating sheet is mounted thereon, and a metal heat dissipating panel that is mounted on the sheet heating element mounted on the beverage tray And .
[0035]
Therefore, according to such a planar heating device, it is possible to insulate or heat the beverage cup or beverage can placed on the tray with the heat generated by the planar heating device. Moreover, since the planar heating device is flat, it can be incorporated on a conventional beverage tray with little increase in space.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a rear surface side of a heat dissipation panel according to a first embodiment.
FIG. 2 is a back view of the same.
FIG. 3 is a front view of the same.
FIG. 4 is a side view showing a state of being hung on a wall.
FIG. 5 is an exploded perspective view of a planar heating element.
FIG. 6 is a plan view of a planar heating element with the upper insulating film removed.
FIG. 7 is a longitudinal sectional view of a planar heating element.
FIG. 8 is an exploded perspective view of a planar heating device incorporated in a tray-like container.
FIG. 9 is an assembled perspective view of the same.
FIG. 10 is a longitudinal sectional view of the same.
FIG. 11 is a longitudinal sectional view of a planar heating element.
12 is a plan view of a planar heating element in a state where an upper insulating film is removed. FIG.
FIG. 13 is a plan view showing a state in which the insulating film on the upper side of another planar heating element is removed.
FIG. 14 is a front view of an instrument panel of an automobile provided with a cup tray incorporating a planar heating element.
FIG. 15 is an external perspective view of the cup tray.
FIG. 16 is a side view of the main part.
FIG. 17 is a plan view showing a state in which the insulating film on the upper side of the planar heating element is removed.
FIG. 18 is a longitudinal sectional view of a planar heating element.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Heat radiation panel 11 Frame 15 Planar heating element 16 Graphite sheet 17 Wiring pattern 19, 20 Electrode 21, 22 Insulating film 25 Hanging string 26 Spacer 27 Display 30 Tray-like container 31 Recess 32 Slit 33 Cosmetic panel 34 Slit 37 Instrument panel 38 Meter mounting part 39 Speedometer 40 Tachometer 41 Clove box 44 Radio receiver 45 Louver 46 Cup tray 47 Holding ring 50 Drinking cup

Claims (6)

A sheet heating element obtained by punching a graphite sheet rolled into a sheet shape by rolling carbon graphite ;
An insulating means made of heat-resistant resin film that insulates as being bonded to the surface of the planar heating element enveloping the said surface-like heating element,
Having an electrode attached to an end of the planar heating element, energizing means for energizing the planar heating element ;
Together with the planar heating element is bonded to the rear surface wrapped by the insulating unit, and radiator panels that radiate heat from the surface,
A frame attached to the outer periphery of the heat dissipating panel and provided with hanging means;
A spacer that is attached so as to protrude from the back surface of the heat dissipating panel and forms a predetermined space with the wall surface when suspended.
A sheet heating device comprising: The predetermined display is performed on the front surface of the radiator panel, the planar heating device according to claim 1, characterized in that also serves as a decoration when hung on the wall. A sheet heating element obtained by punching a graphite sheet rolled into a sheet shape by rolling carbon graphite ;
Insulating means comprising a heat-resistant resin film that is bonded to the surface of the sheet heating element to insulate the sheet heating element,
Having an electrode attached to an end of the planar heating element, energizing means for energizing the planar heating element;
The planar heating element wrapped by the insulating means is received in a recess formed on the surface, is made of a resin molded body, and a tray-like container that radiates heat from the outer surface ;
A decorative panel that covers the concave portion in which the planar heating element is received and blends natural aggregate with light-resistant acrylic resin that radiates heat from the surface, and forms a pattern on the outer surface ;
A sheet heating device comprising: The planar heating device according to claim 3, wherein the tray-like container is made of an epoxy resin. A sheet heating element obtained by punching a graphite sheet rolled into a sheet shape by rolling carbon graphite;
Insulating means comprising a heat-resistant resin film that is bonded to the surface of the sheet heating element to insulate the sheet heating element,
Having an electrode attached to an end of the planar heating element, energizing means for energizing the planar heating element;
A beverage tray attached to an instrument panel of an automobile so as to be freely drawable and on which the planar heating element wrapped by the insulating means is attached;
A metal heat dissipating panel mounted on the planar heating element mounted on the beverage tray;
A sheet heating device comprising: 6. The sheet heating device according to claim 5, wherein the sheet heating element and the heat radiation panel are substantially circular.

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