JPS5931588A - Heater - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to panel heaters used for warming, warming, freezing protection 1+r, etc., and particularly relates to heaters with a high width Q.l'IJ ratio. be.

Conventional configurations and their problems Previously, panels and heaters used electric heaters to heat a non-flammable heating coil filled in a panel-shaped unit, and panels in which group heaters were distributed within the panel-shaped unit. The heat source is a sheet heater formed on the surface of the panel Buddhist painting.

A panel-shaped body is used standing up almost vertically. The surface of the panel-like integral body is 70. kept at ~90°C,
Panel heaters are used for heating, etc., depending on the width of infrared rays from the surface of the image, lXJ.

In this way, since heat radiation from the front side of the flat hot plate is utilized, heat radiation from one front side is not required. Therefore, it is required to reduce as much as possible the heat loss due to radiation, convection, and conduction from surfaces that do not require heat radiation (hereinafter referred to as non-radiation surfaces). Conventionally, thermal insulators have been used to reduce this.

However, although thermal insulators are effective in reducing heat loss due to convection and conduction, they are not effective against convective heat loss due to the temperature rise of the thermal insulator itself due to absorption of radiant heat, or heat loss due to transmission of radiant heat. The problem was that it wasn't.

OBJECTS OF THE INVENTION The present invention provides a heater that reduces heat loss due to heat transfer and radiation from non-radiating surfaces and has high infrared radiation efficiency. According to this configuration, since the hollow space exists on the side opposite to the heat source surface, heat dissipation due to convection within this hollow space is reduced. In particular, since the upper part of this hollow space is higher on the heat source side, the high temperature air extends to this higher side and moves in the opposite direction from the heat source, that is, heat dissipation by convection is reduced.

In order to achieve the +Ni formation objective of the invention, the present invention provides an infrared radiating 4:/I' PI layer on one surface of the heat source described above,
An infrared transmitting structural cargo having a plurality of hollow spaces is provided on the other surface of the heat source, and the upper part of each hollow space is elevated on the heat source side.

Description of examples An embodiment of the present invention will be described below with reference to FIG.

In FIG. 1, the surface 1b of a flat heat source 10 is provided with infrared radiation and vervesotocoat 2 as an eyelid, and the other surface 1a of the heat source 1 is filled with air and has a parallelogram-shaped cross section. An infrared transparent structure 5 having a plurality of hollow spaces 3 is attached thereto. The hollow space 3 is located between the surface 1a of the heat source 1, one side 4a of the parallelogram, and the other side 4.
1 on the surface 1a side of the heat source 1.
It is made so that the side 4a is located above the other opposing side 4b. The infrared transparent structure 5 is made of polycarbonate with a thickness of about 6 mm, and an aluminum foil 6 is pasted as an infrared reflective film on the surface of the infrared transparent structure 5 opposite to the heat source 1. I can hear it. Further, on the surface of the aluminum foil 6 on the side opposite to the infrared transparent structure 5, a cut-off layer 7 of urethane is provided.

In the above configuration, since the hollow space 3 having a parallelogram cross section is provided on the back side of the heat source 1, the heat insulation property is good, and one side 4a on the side of the heat source 1 having a high temperature of 11161 degrees
is located above the other parallel side 4b, which is at a low temperature, and the middle is higher on the heat source 1 side, so heat accumulates on this higher side, and convection due to heat decreases, causing convection. Reduces heat loss due to Furthermore, since the paulownia sea lion used has low infrared absorption, it is possible to suppress the rise in temperature of the white of the infrared transparent structure 5 due to absorption of infrared rays.

The aluminum foil 6, which is an infrared reflective film, is attached to the infrared transmitting structure 5.
, the infrared rays emitted from the heat source 1 are transmitted through the infrared transparent structure 5, reflected by the aluminum foil 6, and returned to the heat source 1. Therefore, 輻'J-
Heat loss due to J can also be significantly reduced.

Due to the effects described above, heat loss was reduced by more than 40% compared to conventional products.

Further, other examples of actual M1ξ will be explained with reference to FIGS. 2 and 3.

In these figures, the same parts as in FIG. 1 are given the same numbers.

FIG. 2 shows an infrared reflector 6 with a low emissivity attached to the surface 1a of the heat source 1 in the embodiment shown in FIG. This also made it possible to significantly reduce the radiation Q=f from the heat source 1.

In FIG. 3, the heat insulating layer 7 in the embodiment shown in FIG. 2 has the same shape as the infrared transparent structure 5. In FIG.

Note that an infrared-transmissive heat-insulating gas may be filled in the hollow space 3 as necessary.

Furthermore, the heat source 1 side of the hollow space 3 is set as open [1, and this open [
” may be configured to be in contact with the heat source 1.

In the present invention, the heat source 1 is not configured in a flat plate shape as in the above embodiments, but can be formed in an oblong shape, a cylinder shape, a [J] column shape, a corrugated plate shape, etc. It's not even that big of a deal.

Of course, the heat source 1 itself may be a combustion gas heat radiator, or a heat radiator of a heat transfer medium such as water or freon, in addition to an electric heater.

Effect of the invention According to the heater of the present invention, the following effects can be obtained.

(1) Radiation from the heat source is reflected by the infrared reflective film,
Not radiated into external space.

(2) Since the infrared reflective film is also a low emissivity qt rate radiator, the amount of radiation from the infrared reflective film to the infrared transparent structure, or I, to the heat insulating layer is small, and therefore it is non-conductive. Width', J
=The amount of radiation qt emitted from the J plane also decreases.

(3) Infrared-transparent structures have a high heat insulation effect due to their hollow spaces and absorb little infrared rays, so heat from the surface of the infrared-transparent structure itself due to absorption
It's no small loss.

(4) Infrared transparency between the heat source and the infrared reflective film! :l
i: Via the structure ([By stirring, the heating of the red sunset one-ray reflective film due to conduction from the heat source is reduced, so the temperature of the infrared reflective film becomes low, and the heat due to radiation from the infrared reflective film is reduced. Loss can be further reduced.

[Brief explanation of drawings]

1, 2, and 3 are sectional views showing an embodiment of the heater of the present invention. 1... Heat source, 5... Infrared transparent structure, 6...
...Aluminum foil (infrared reflective film) ...insulation layer. Name of agent: Patent attorney Toshio Nakao and one other person39 Figure 3

Claims (5)

[Claims] (1) An upright heat source, an infrared radiation material layer formed on one surface of the heat source, and an infrared radiation material layer provided on the other surface of the heat source and having a plurality of hollow spaces inside. a transparent structure; an infrared reflective film formed on a surface of the infrared transparent structure opposite to the heat source; and a heat insulating layer formed on a surface of the infrared reflective film opposite to the infrared transparent structure. A heater consisting of. (2) The heater according to claim 1, wherein an infrared reflective film is formed between the heat source and the infrared transparent structure. (3) The heater according to claim 1, wherein an infrared-transparent insulating gas is sealed in the hollow space of the infrared-transparent structure. (4) The heater according to claim 1, wherein the heat source side of the infrared transparent structure is an open surface, and the open surface is in contact with the surface of the heat source. (5) Hollow space d: Shaped to have a parallelogram cross section, provided so that the heat source and two sides of the quadrilateral are parallel, and one side on the heat source side is closer to the other opposing side. [K]--The meter according to claim 1, in which the holder is also located at the upper part.