JPH0645792Y2 - Electric warm air blower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an electric warmer for warming a general household in winter.

(Prior Art) As shown in FIG. 3, a conventional electric air blower is provided with a blow-out port 3 in the upper front part of a box body 1 and a suction port 2 in the lower part of the box body 1 in parallel with the blow-out port 3 in the box body 1. A heating element 7 in which a heating wire 6 is wound vertically is installed on front and rear mica plates 4 and 5 which are vertically arranged with a space provided therebetween, and the heating element 7 is blown in a downward direction directly below the heating element 7. With the fan 9
There is provided a metal case 8 including an inclined portion that changes the flow of the air so that the air blown from the air outlet 3 is blown forward from the air outlet 3 and a portion that protects the outer periphery of the heating element 7. In addition, A shows the wind path during energization.

(Problems to be Solved by the Invention) In the conventional technique as described above, since the respective mica plates 4 and 5 stand in parallel and vertically, the upward wind from the fan 9 is directly discharged upward, and the metal case Hit the top of 8,
Since the wind direction is bent here, this abutment causes air loss, and the air blowing effect from the air outlet 3 is poor.

Also, the warmed air below the heating wire 6 wound around each mica plate 4 and 5 heats the heating wire 6 above,
The upper part of the heating wire 6 was red-hot and the life of the heating wire 6 was shortened. For this reason, it is necessary to increase the torque of the fan 9.

(Means for Solving the Problem) In order to solve the above-mentioned problems, a box body provided with a suction port in the lower part and an outlet port in the upper front surface, and each surface of the front and rear mica plates in the box body are mutually The heating elements are arranged with a space between them, and the heating wires are wound around them in the vertical direction, the metal case that covers the rear and upper surfaces of the heating element and the upper part is inclined toward the outlet, and the lower part of the heating element. In an electric warmer equipped with a fan that is positioned and blows upward, the upper part of the mica plate on the rear surface is inclined toward the suction port, and the mica plate on the front surface is positioned substantially vertically.

(Operation) The air blown upward from the fan is bent to the outlet by the mica plate on the rear surface. Further, since the lower part between both mica plates is wide and the upper part is narrow, a large amount of air blows through both mica plates on the lower side, and it is possible to efficiently warm the air without heating the heating lines on the upper side. The fan torque may be smaller than the conventional one.

(Embodiment) An embodiment of the present invention will be described below with reference to FIG. 1 and FIG.

A mica plate 5 on the rear surface has a longitudinal dimension longer than that of the mica plate 4 which is erected substantially vertically on the front surface, and the upper portion is inclined in the direction of the air outlet 3. Moreover, the upper part thereof extends toward the outlet 3 side, and the cross-sectional shape of the heating element 7 is substantially trapezoidal.

The configuration other than the above is the same as that of FIG.

Next, the operation of the above configuration will be described.

Most of the air from the fan 9 is sent between the mica plates 4 and 5 to exchange heat and become warm air, which is blown out from the outlet 3 according to the inclination of the mica plate 5 on the rear surface (shown by the air passage A).

Since the wind speed and air volume between the mica plates 4 and 5 are larger than those of the conventional one, even if the warm air that touches the lower side of the heating wire 6 touches the upper side of the heating wire 6, the heating wire 6 is not heated to the extent that it glows red. .

The mica plates 4 and 5 may be changed to another material having the same function as the mica plate.

(Effects of the Invention) According to the present invention, each surface of the front and rear mica plates is spaced from each other in the box body, and the rear mica plate is inclined toward the air outlet side like the inclination of the metal case. Most of the wind flows between the mica plate and the metal case by raising the mica plate almost vertically and blowing it with a fan from below, and it is efficiently guided to the outlet side and the wind resistance is increased. There was little, and it came to be able to blow out from the outlet.

In addition, since the air is collected and flows between the mica plates, the hot air can be converted from the heating lines above and below the mica plate and the red heat does not occur, so that the heating lines can have a longer life.

[Brief description of drawings]

FIG. 1 is a sectional view of a front main part showing an embodiment of the present invention, and FIG.
FIG. 3 is a side sectional view showing an embodiment of the present invention, and FIG. 3 is a side sectional view of a conventional example. 1 ... Box, 2 ... Suction port, 3 ... Blowout port, 4 ... Front mica plate, 5 ... Rear mica plate, 6 ... Heating wire, 7
…… Heating element, 8 …… Metal case, 9 …… Huan.

Claims (1)

[Scope of utility model registration request] 1. A box body (1) having a suction port (2) at a lower portion and an air outlet (3) at an upper front surface, and front and rear mica plates (4), (5) in the box body (1). ) Are arranged at intervals from each other, and the heating wire (6) is wound vertically with the heating wires (6) as cores, and the heating element (7) covers the rear surface and the upper surface and has an upper part. An electric warmer equipped with a metal case (8) inclined toward the outlet (3) and a fan (9) located below the heating element (7) and blowing air upward, in which a mica plate (5) on the rear surface is provided. An electric warmer characterized in that the upper part of the is inclined toward the air outlet (3) and the front mica plate (4) is positioned almost vertically.