JPH1151488A - Electric heat storage heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate regulation of an amount of supply hot air. SOLUTION: A heater is formed such that outside air inputted through a suction port is brought into contact with a heat storage body 2 to generate hot air, and the hot air is discharged through an external air outlet 6, and an upper surface heat insulating material 4A is provided with an internal air outlet and a damper 7 is arranged above the air outlet. The damper 7 is provided with holes 7a of the same shape as that of the internal air outlet. When, through thermal conduction from a heat transfer plate 9 exposed to hot air, a bimetal 8 is deformed, the damper 7 also effects displacement to change an amount of hot air.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric heat storage heater for storing heat in a heat storage body at night using electric power at midnight and releasing the heat during daytime for heating.

[0002]

2. Description of the Related Art An electric heat storage heater shown in FIG. 4 is conventionally known. This warms the outside air introduced from the suction port 22 of the outer case 21 by the heat stored in the heat storage brick 23,
This is a heat storage heater that blows out from the external outlet 24 as warm air. This heater has an electric heater 25 in an outer case,
A heat storage brick 23 that stores heat by the heat generation, and a heat insulating material 26 disposed around the heat storage brick 23;
An air passage 27 is formed between the brick and the brick 23. The outside air taken in from the suction port 22 undergoes heat exchange while passing through the ventilation path 27 to become warm air, flows out from the internal blowing port 28 formed in the upper surface heat insulating material, and is further provided to the external blowing port provided in the external case 21. Released from 24.

Here, an opening / closing damper 29 is provided in the internal outlet 28 to adjust the amount of hot air flowing out. There are various types of opening / closing structures of the damper 29. For example, Japanese Patent Application Laid-Open No. Hei 5-133612 discloses a structure in which an upper panel supported on the upper surface of a heat insulating material is provided with a blowout port, and a swinging port for blocking and opening this blowout port. A dynamic damper is disclosed. A bimetal is attached to the damper, and when the bimetal deforms due to a change in temperature, the damper swings up and down to cover and open the outlet, and adjusts the amount of hot air blown out.

[0004]

However, in the above-described mechanism for adjusting the amount of hot air, since the damper swings up and down, it is difficult to stabilize the degree of opening of the outlet, and it is difficult to adjust the amount of hot air to be blown out. difficult.

Accordingly, a main object of the present invention is to provide an electric heat storage heater capable of easily adjusting the amount of hot air blown out.

[0006]

Means for Solving the Problems The present invention has been made to achieve the above-mentioned object, and is characterized in that outside air taken in from a suction port is brought into contact with a heat storage body heated by an electric heater to generate hot air. An electric regenerative heater that blows out the warm air from an external outlet, an air passage through which outside air taken in from the inlet flows while contacting the heat storage body, and an internal air outlet that blows warm air from the air passage to the outer outlet. The outlet, the heat transfer plate exposed to the warm air flowing out of the internal outlet, the bimetal that deforms in response to the temperature change of the heat transfer plate, and the internal outlet, which is displaced with the deformation of the bimetal. A damper, the damper having a plurality of holes corresponding to the internal outlet so that the amount of warm air flowing out from the internal outlet can be adjusted.

Here, for example, a damper having a hole having substantially the same size and shape as the hole of the internal outlet is used, and the amount of hot air blowout can be easily controlled by interlocking the damper with the deformation of the bimetal. Can be. Preferably, the damper is displaced so as to slide over the internal outlet.

It is preferable that the heat transfer plate is movable, and the damper shields and opens the internal outlet in conjunction with the movement. This also makes it possible to easily change the heat release amount. As the heat transfer plate, a plate having good heat conductivity such as a metal plate is preferable.

Further, by attaching a heat diffusion plate to the inner surface of the outer outlet, the temperature of the warm air flowing out from the inner outlet is reduced, and the temperature of the outer outlet is also reduced to prevent burns and the like. be able to. In particular, if the hole of the heat diffusion plate is made small, it is possible to eliminate the possibility that foreign matter enters the inside of the heater and causes damage or failure.

[0010]

FIG. 1 is a block diagram showing an embodiment of the present invention.
It will be described based on. FIG. 1 is an explanatory view showing a schematic configuration of the device of the present invention. This heater also has the same structure as that of the heater of FIG. 4 in that the outside air introduced into the inside from the suction port is brought into contact with the heat storage brick to generate hot air, and the hot air is discharged from the external outlet.

That is, the heater of the present invention has a plurality of heat storage bricks 2 serving as a heat storage body laminated inside an outer case 1, an electric heater 3 inside the bricks 2, and a heat storage brick inside the outer case 1. A heat insulating material 4 surrounding the periphery of the brick 2 is provided. The heat insulating material 4 is arranged at a distance from the heat storage brick 2, and this space becomes the ventilation path 5. Outside air introduced from a suction port (not shown) comes into contact with the heat storage brick 2 and becomes hot air, and rises in the ventilation path 5 by natural convection. The heat insulating material 4A on the upper surface is provided with an internal outlet (not shown), and the warm air that has passed through the ventilation passage 5 flows out from the internal outlet, and is further discharged from the external outlet 6. In this example, an internal outlet is formed by arranging a number of long holes in parallel on the upper surface heat insulating material 4A.

A damper 7 for adjusting the amount of hot air blown out is disposed above the internal blowout opening. The damper 7 has holes 7A having the same shape, size and number as the long holes of the internal outlet, and adjusts the amount of hot air blown from the internal outlet by sliding in the longitudinal direction. This slide contains bimetal 8
And the movement associated with the movement of the heat transfer plate 9 was used. The movement of the heat transfer plate 9 can be manually performed by the heat radiation adjustment lever 10. This moving mechanism is shown in FIG.

The heat-dissipation adjusting lever 10 is configured to be rotatable about a rotation shaft 11, and a substantially L-shaped connecting bracket 12 is attached to an intermediate portion thereof. It is connected to the heat transfer plate 9. The bimetal 8 is a flat plate extending through one end of the damper 7 and extending in the vertical direction. The heat transfer plate 9 is an L-shaped metal plate having a cross section substantially parallel to the damper 7 and facing the same. Heat dissipation adjustment lever 10
Is rotated, the heat transfer plate 9 is moved in the longitudinal direction of the damper 7 in conjunction with the connection fitting 12. Accordingly, the damper 7 connected to the heat transfer plate via the bimetal 8 also slides in the longitudinal direction.

With this slide, when the internal outlet and the hole 7A of the damper 7 coincide with each other, the internal outlet is opened to increase the amount of hot air to be blown out. The amount is small. Therefore, the heat transfer plate 9 is configured to be movable, and the movement of the damper 7 is linked to this movement, so that the amount of hot air blown out can be adjusted.

Then, the warm air flowing out of the internal outlet blows the heat transfer plate 9 and raises the temperature thereof, and the heat deforms the bimetal 8 by heat conduction. This deformation causes the bimetal 8 to warp in the longitudinal direction of the damper 7, so that the damper 7 can be slid in conjunction therewith. That is, even after the heat transfer plate 9 is moved to the predetermined position, the damper 7 can be moved to some extent in accordance with the temperature change of the hot air, and the amount of the hot air blown out can be adjusted.

Further, a heat diffusion plate (not shown) is mounted on the inner surface of the outer outlet 6 (FIG. 1) provided in the outer case 1. By discharging the warm air from the internal outlet through the heat diffusion plate, the warm air is homogenized, the temperature is reduced, and it is possible to prevent the external outlet 6 from being burned by touching the external outlet. The heat diffusion plate is a plate-like body provided with a large number of appropriately shaped holes, and is made of a material having a high thermal conductivity (eg, a metal plate).
It is preferable to configure Also, it is desirable that the holes provided in the heat diffusion plate have such a size that relatively thin ones (pen, chopsticks, etc.) in ordinary households do not fall into the heater. The shape of the hole is not particularly limited. In this example, as shown in FIG. 3, a pattern in which cross holes 16 are arranged on four sides of a circular hole 15 having a diameter of 6 mm was formed. Thus, it is possible to prevent foreign matter from falling into the heater and causing a failure or damage.

[0017]

As described above, according to the heater of the present invention, the amount of warm air can be easily adjusted by forming a hole corresponding to the internal outlet in the damper linked to the bimetal.

Further, the amount of hot air can be easily adjusted by making the heat transfer plate that conducts the heat of the hot air to the bimetal movable, and interlocking the damper with this movement to shield / open the internal outlet. it can.

Further, by attaching a heat diffusion plate to the inner surface of the external outlet, the temperature of the hot air to be blown can be reduced, and burns and the like due to contact with the external outlet can be suppressed, thereby enhancing safety. In particular, by reducing the size of the hole in the heat diffusion plate, it is possible to prevent foreign matter from falling into the heater.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a schematic configuration of a heater of the present invention.

FIG. 2 is an explanatory view showing a heat transfer plate moving mechanism in the heater of the present invention.

FIG. 3 is a plan view showing a hole pattern of a heat diffusion plate used in the heater of the present invention.

FIG. 4 is an explanatory diagram showing a schematic configuration of a conventional heater.

[Explanation of symbols]

1,21 Outer case 2,23 Heat storage brick 3,25 Electric heater 4,4A, 26 Insulation material 5,27 Ventilation path 6,24 External outlet 7,29 Damper 7A hole 8 Bimetal 9 Heat transfer plate
10 Heat dissipation adjustment lever 11 Connecting bracket 12 Rotating shaft 13 Screw 15 Circular hole 16
Cross hole 22 Suction port 28 Internal outlet

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Fujio Sonoda, 776 Naie, Naie-cho, Sorachi-gun, Hokkaido Inside Hokkaido Electric Co., Ltd. 72) Inventor Yukio Sakino 776 Naie, Naie-cho, Sorachi-gun, Hokkaido Inside Hokkaido Electric Co., Ltd.

Claims (3)

[Claims] 1. An electric regenerative heater that contacts outside air taken in from a suction port with a heat storage body heated by an electric heating element to generate hot air, and blows out the hot air from an external air outlet. A ventilation path through which outside air flows while contacting the heat storage body, an internal outlet for blowing warm air from the ventilation path to the external outlet, a heat transfer plate exposed to warm air flowing out of the internal outlet, and a heat transfer plate It has a bimetal that deforms in response to changes in temperature of the air, and a damper that faces the internal outlet and is displaced as the bimetal deforms.This damper has an internal outlet that can adjust the amount of warm air flowing out from the internal outlet. An electric heat storage heater having a plurality of holes corresponding to a mouth. 2. The electric heat storage heater according to claim 1, wherein the heat transfer plate is movable, and the damper is configured to shield / open the internal outlet hole in conjunction with the movement. . 3. The electric heat storage heater according to claim 1, wherein a heat diffusion plate having a plurality of holes is mounted on an inner surface of the external outlet.