JPS6320074Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a far-infrared heating element installed in, for example, a kotatsu tower.

[Technical background of the invention and its problems] Recently, the surface of a heat sink is coated with a paint containing metal oxide to form a far-infrared layer, and a heater unit is installed on the back side of this heat sink. A heating element is provided which radiates far-infrared rays through the far-infrared layer based on the heat generated by the unit, and since this can be constructed in a thin shape, it is particularly advantageous as a heat source for a tower kotatsu, and has been widely put into practical use. ing.

However, far infrared rays have a strong straight propagation property, so when used as a heat source for a yagura kotatsu, the temperature in the central area directly under the heating element is high, but the temperature in the surrounding area is relatively low. Therefore, it is difficult to sufficiently warm the knees of the person taking the heat, which causes dissatisfaction with the comfort of use.

[Purpose of invention]

This idea was developed with this in mind, and its purpose is to greatly diffuse far-infrared rays over a wide range, making it more comfortable to use when used in a Yagura Kotatsu, for example. An object of the present invention is to provide a far-infrared heating element that can improve the performance of the far-infrared rays.

[Summary of the idea]

That is, in this device, a heater unit is provided on the back side of a heat sink having a far infrared layer on the surface, and far infrared rays are emitted from the surface of the heat sink based on the heat generated by the heater unit. A large number of dowels with an arcuate cross section protrude from the top.

[Example of idea]

An embodiment of this invention will be described below with reference to the drawings. In the figure, 1 is a wooden tower, which has legs 3 detachably attached to the four corners of a ceiling body 2, and the ceiling body 2 is supported horizontally by these legs 3. The ceiling body 2 has a plurality of inner beams 5 inside a rectangular outer frame 4.
are constructed by assembling them in a grid pattern, and the space in the center surrounded by each inner frame 5 is defined as a storage section 6.
The upper surface of this storage section 6 is closed by a top plate 7.
A far-infrared heating element 10 is housed within this housing portion 6.

Describing this far-infrared heating element 10, 1
Reference numeral 1 denotes a heat dissipation plate formed in the shape of a flat box, and a far-infrared layer 13 is applied to the outer surface of the heat dissipation plate 11 using a paint containing metal oxide or the like. A flat heater unit 14 is provided on the back surface of the heat sink 11, and the heater unit 14 has a flat plate shape.
Three layers of heat insulating plates 15, 16, and 17 each having a substantially U-shape are disposed on the upper surface side of the device 4. As shown in FIG. 4, the heater unit 14 has a heating wire 1 mounted on a core plate 18 made of insulating material such as mica.
9 is wound to form a heater plate 20, a plurality of such heater plates 20 are arranged in parallel at intervals, and these are further sandwiched between thin insulating plates 21, 21 made of mica or the like to be integrated. Become. The spacing between the heater plates 20 is wide at the center of the insulating plates 21, 21 and narrow at both ends. In addition, the heating wire 1 of the heater plate 20
9 is wound around the core plate 18 so that it is disposed only on one side of the core plate 18, as shown in FIG.
It is facing towards and in contact with.

A large number of dowels 22 having an arcuate cross section are formed on the heat sink 11 so as to protrude from the surface thereof, and these dowels 22 correspond to the gaps between the heater plates 20 arranged in parallel. Arranged in position.

In addition, 25 is a guard disposed below the heat sink 11, 26 is a heat insulating plate attached to the lower surface of the top plate 7, and 27 is a guard disposed below the heat sink 11.
This is a frame that supports

Next, the effect will be explained. Heater unit 1
When electricity is applied to the heating wire 19 of 4, it generates heat,
Based on this heat generation, far infrared rays are radiated from the surface of the heat sink 11 into the tower 1 through the far infrared layer 13. A dowel 2 having an arcuate cross section is provided on the surface of the heat sink 11.
As shown in FIG. 6, far infrared rays are emitted from each point on the circumferential surface of these dowels 22 in a direction perpendicular to the tangent at that part, and as a result, the tower 1 Far-infrared rays are diffused to each part of the interior, helping to make the temperature distribution uniform within the interior, thereby effectively warming the knees of the person taking the heat, thereby improving the comfort of use. Dowel 2
2... has a space on its inner surface side, but these dowels 22... are arranged in the gaps between the heater plates 20..., so that the back surface of the heat dissipation plate 11 is the plate surface of each heater plate 20... Since the heater plates 20 are in close contact with each other, the heat from the heater plates 20 is quickly conducted to the heat sink 11, and the start-up performance is improved. Furthermore, the heating wire 19 is arranged on one side of the winding core plate 18, and this arrangement side faces the heat sink 11. Therefore, not only is the heat conduction to the heat sink 11 better, but also the top plate 7 of the tower 1 This has the advantage of suppressing heat dissipation to the sides and reliably preventing overheating. In addition, the spacing between the heater plates 20 arranged in parallel is wide at the center and narrow at both ends.
The temperature on the surface of the tower 1 becomes uniform, and the temperature distribution inside the tower 1 is further promoted to be uniform.

In the above embodiment, the far-infrared heating element of this invention is used in a kotatsu tower, but it can be similarly incorporated and used in other equipment.

[Effect of idea]

As explained above, according to this invention, far infrared rays can be diffused over a wide range. Therefore, when used for example in a yagura kotatsu, the knees of the person taking warmth can be effectively and sufficiently warmed for use. This has the effect of improving comfort.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a perspective view of the Yagura Kotatsu, Figure 2 is a sectional view of the far-infrared heating element built into the Yagura Kotatsu, Figure 3 is a bottom view, Figure 4 is a perspective view of the heater unit in an exploded state, and Figure 5 is a perspective view of the heater unit in an exploded state. The figure is a plan view showing an enlarged part of the heater plate, and FIG. 6 is a sectional view for explaining the operation. 10... far infrared heating element, 11... heat sink, 1
3...far infrared layer, heater unit, 18... core plate, 19... heating wire, 20... heater plate, 22... dowel.

Claims (1)

[Claims for Utility Model Registration] (1) A heater unit is provided on the back side of a heat sink having a far-infrared layer on its surface, and based on the heat generated by the heater unit, far-infrared rays are emitted from the surface of the heat sink through the far-infrared layer. A far-infrared heating element characterized in that the heat dissipation plate is provided with a large number of dowels having an arcuate cross section projecting from the surface thereof. (2) A heater unit consists of a plurality of heater plates, which are constructed by winding heating wires around a core plate, arranged at intervals, and dowels of the heat dissipation plates are provided corresponding to the gaps between the intervals. A far-infrared heating element according to claim 1 of the claimed utility model registration. (3) The far-infrared heating element according to claim 2 of the utility model registration, characterized in that the distance between the heater plates is wide at the center of the heat sink and narrow at both ends. (4) The remote control according to claim 2 or 3 of the utility model registration, characterized in that the heating wire is arranged on one side of the winding core plate, with this arrangement side facing the back side of the heat sink. Infrared heating element.