JPH0633286Y2 - Radiant heater - Google Patents

Description

[Detailed Description of the Invention] a) Industrial field of application The present invention relates to an apparatus which uses a planar heater in a substantially vertical direction and mainly collects heat by radiating heat rays.

(B) Conventional technology The surface of the radiant heater radiates heat rays, so it is necessary to raise it to a high temperature, but in this case the heat loss due to convection of the air in contact with the surface is large, and if it is left as it is, the human body may touch it and cause burns. It was covered with cloth or a heat ray permeable cover.

C) Problems to be solved by the invention However, in all cases, the radiation efficiency was not good because the heat rays were blocked considerably. Therefore, although the input was increased, it took time until the effective heat rays were radiated from the start of use, and the radiation efficiency was further reduced due to dirt due to dust, etc. There was a problem.

D) Means for solving the problem The present invention is to solve this problem, and as shown in FIG. 1, a large number of flow shield plates 2 made of a heat insulating material are provided on the radiation surface 1 of the planar heater. It is installed at a suitable interval in a substantially horizontal direction or slightly downward.

It is suitable that the distance between the flow shields and the flow shields is approximately the same as the height of the flow shields from the radiation surface, but is not limited thereto.

(E) Action To explain the action, as shown in the figure, the air in contact with the radiation surface 1 is warmed and tries to rise due to convection, but it is bent in the horizontal direction by the flow blocking plate 2, so that the upflow is significantly hindered. As shown by the arrow 3, the convection occurs only in the small space between the flow shields and the flow shields, so that the heat leakage to the outside due to the convection of air is significantly reduced. Further, the flow shield plate 2 eliminates the danger of the human body directly touching the radiation surface at high temperature.

F) Embodiments FIGS. 2 to 4 are front views of various embodiments of the arrangement of the flow shields, and in addition to a lattice shape, a honeycomb shape or a combined shape of cylinders is also effective in practice.

There are various types of sheet heaters, such as those in which a heat generating circuit is printed with a conductive paint and those in which a heat generating circuit is formed of a metal foil, but any type can be applied.

G) Effect of the invention In this way, the present invention effectively suppresses the temperature drop of the radiation surface due to the convection of air with a simple structure and radiates the heat rays directly from the planar heater, so that the transmission loss due to the cover and the dirt such as dust are caused. The radiation efficiency is not lowered by the above, and the direct contact of the human body with the radiation surface can be prevented by the flow shield plate, which is very safe and the effect is remarkable.

[Brief description of drawings]

FIG. 1 is a side sectional view, and FIGS. 2 to 4 are front views of various embodiments. 1 ... Radiant surface of planar heater, 2 ... Flow shield, 4 ... Insulation material

Claims (1)

[Scope of utility model registration request] 1. As shown in the drawing, a large number of flow shielding plates (2) are arranged at intervals so as to change the flow direction by blocking the air current rising by convection along the radiation surface of the planar heater. A radiant heater characterized by being arranged in contact with the radiant surface (1).