JPH10300232A - Thermal storage heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a thermal storage efficiency and to efficiently discharge heat quantity stored in a short time by controlling an opening/closing plate to close openings of inlet and outlet during thermal storage operation in a thermal storage unit, thereby limiting radiation from thermal storage to a minimum limit. SOLUTION: When a thermal storage button 34 of an operation panel 30 is pressed, its input signal is inputted to a power source board 32 via an operation board 33, and a control circuit in a microcomputer of the board 32 is operated to energize a thermal storage heater 11 and to heat a thermal storage unit 10 by the heater 11. At the time of thermal storage, a first inlet 17, a first outlet 18, a second inlet 19 and a second outlet 20 are closed by a first opening/closing plate 21, a second opening/closing plate 22, a third opening/ closing plate 23 and a fourth opening/closing plate 24, and hence flow of the air to a first duct 13 and a second duct 16 is shut off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage heater having a heat storage material device in a main body and blowing hot air from an outlet.

[0002]

2. Description of the Related Art FIG. 7 is a sectional view showing a conventional heat storage heater disclosed in, for example, Japanese Patent Application Laid-Open No. 5-133613.
In the figure, reference numeral 1 denotes a box-shaped main body. The main body 1 has an intake port 2a at a lower front portion, an intake port 2b at a lower rear portion, and an outlet 3 at an upper front portion. . Reference numeral 4 denotes a heat storage element which is disposed in the internal space of the main body 1 and is made of a brick mainly composed of magnesium oxide, in which a heat storage heater 5 is embedded. Reference numeral 6 denotes a groove provided before and after the heat storage element 4, and reference numeral 7 denotes a heat insulating material 7 provided on the bottom and side surfaces of the heat storage element 4 so as to cover the heat storage element 4 and above. At the lower front and rear portions of the heat insulating material 7, lower openings 8 a facing the intake ports 2 a and 2 b are provided.
8b are provided, and an upper surface opening 9 is provided substantially at the center of the upper part of the heat insulating material 7.

[0003] Reference numeral 10 denotes a first member formed between the groove 6 of the heat storage element 4 and the heat insulating material 7 and between the upper surface of the heat storage element 4 and the heat insulating material 7.
The lower openings 8a, 8b and the upper surface opening 9 communicate with each other via a first air passage 10. 11 is a heat insulating material
And a second air passage formed between the main body 1 and the air inlets 2a and 2b and the air outlet 3 through a second air passage 11. Reference numeral 12 denotes an over-temperature prevention switch disposed inside the first air passage 10 inside the upper portion of the heat insulating material 7, and stops the power supply to the heat storage heater 5 when the temperature of the heat storage body 4 reaches a predetermined heat storage temperature. . Reference numeral 13 denotes an opening / closing plate provided in the upper opening 9 of the first air passage 10, and is connected to the bimetal 14. The opening and closing plate 13 adjusts the opening and closing of the opening 9 by the expansion and contraction of the bimetal 14. Further, the bimetal 14 is located in the second air passage 11 on the side of the intake port 2b, and its position changes according to the temperature of the cold air guided through this gap to adjust the opening of the opening / closing plate 13. I do. That is, as the temperature of the cold air increases, the opening degree of the opening / closing plate 13 decreases. Reference numeral 15 denotes an operation knob 15 provided on the upper surface of the main body 1 for setting the indoor heating temperature. By operating the operation knob 14, the arrangement of the bimetal 14 changes and the opening of the opening / closing plate 13 is set.

Next, the operation will be described. When a power switch (not shown) is turned on and power is supplied to the heat storage heater 5, the heat storage body 4 is heated and heat is stored. The heat storage temperature of the heat storage body 4 rises as the power supply time of the heat storage heater 5 elapses, and when the heat storage temperature reaches the heat storage set temperature of about 600 degrees, the overheat prevention switch 12 is activated to supply power to the heat storage heater 5. The heat storage process is completed. In this heat storage process, the temperature of the heat insulating material 7 also rises, so that the outside air (cool air) from the intake ports 2a and 2b deprives the heat of the heat insulating material 7 while passing through the second air passage 11 to become warm air and is discharged from the air outlet 3. Is done.

[0005] Next, the operating knob 15 is operated to open and close the opening / closing plate 13.
Is opened, the cool air from the intake ports 2a and 2b
a, 8b, one of the openings 8a, 8b
The heat enters the heat storage body 4, passes through the first air passage 10, and is discharged to the upper opening 9. When passing through the first air passage 10, the cool air deprives the heat storage material 7 of heat and becomes warm. The other cool air passes through the second air passage 11 and is discharged to the outlet 3. The warm air that has risen from the upper opening 9 is mixed with the cool air from the second air passage 11 on the rear side and discharged from the outlet 3. The indoor heating temperature is set by the opening of the opening / closing plate 13. That is, if the operation knob 15 for setting the position of the bimetal 14 is turned clockwise, for example, the opening degree increases and the room temperature can be set high. Conversely, if the counterclockwise direction is set, the opening degree is reduced, and the room temperature is set low.

When the temperature of the cold air flowing from the intake ports 2a, 2b to the second air passage 11 increases sequentially due to the rise in the room temperature, the position of the bimetal 14 automatically changes in the direction in which the opening decreases. Then, the amount of warm air from the outlet 3 is gradually reduced. And when the room temperature reaches the heating set temperature,
The opening / closing plate 13 is opened or closed so that the room temperature is maintained at the heating temperature. Further, when the room temperature decreases, the amount of air passing through the second air passage 11 also decreases.
Operate in a direction to open the opening / closing plate 13. By repeating the above opening and closing operations, the indoor temperature is maintained at the predetermined temperature.

[0007]

In the conventional heat storage heater as described above, when the heat storage element 4 is being heated by the heat storage heater 5, the heat of the heat storage element 4 passes through the heat insulating material 7 and the second wind. It moves to the road 11. The second air passage 11 includes the intake ports 2a, 2a
Since b and the outlet 3 communicate with each other through the opening, convection occurs, and the heat of the heat insulating material 7 is exchanged in the second air passage 11 to become warm air and radiated from the outlet 3. Therefore, it takes a lot of time to bring the heat storage body 4 to a predetermined heat storage set temperature, which causes a problem that sufficient heat storage cannot be performed.

In addition, since the heat is radiated by natural convection, the stored amount of heat cannot be efficiently radiated in a short time.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and improves heat storage efficiency by minimizing heat radiation during heat storage, and efficiently discharges heat stored in a short time. It is an object of the present invention to provide a heat storage heater.

[0010]

According to the present invention, there is provided a heat storage heater including a heat storage element having a heating element, a heat insulating material disposed outside the heat storage element so as to cover the heat storage element, and a heat insulating material. An air passage formed between the air inlet and the heat storage body, the air passage having an inlet and an outlet, an opening and closing plate provided at the inlet and the outlet so as to be openable and closable, respectively, and an opening and closing operation of the opening and closing plate Control means for controlling the opening / closing plate so as to close the openings of the inflow port and the outflow port during the heat storage operation of the heat storage body.

[0011] Further, a heat storage element having a heating element, a heat insulating material disposed outside the heat storage element so as to cover the heat storage element, and a first heat storage element formed between the heat insulating material and the heat storage element, A first air passage having an inflow port and a first outflow port, and a second inflow port and a second inflow port formed along an outer peripheral surface of the heat insulating material.
A second air passage having an outflow port, a first opening / closing plate which is provided at the first inflow port and the first outflow port so as to be openable and closable, and opens and closes an opening; A second opening / closing plate provided at the second outlet so as to be openable / closable to open and close an opening; and control means for controlling opening / closing operation of the first or second opening / closing plate. The opening / closing plate is controlled so as to close the inlets and outlets of the first and second air passages during the heat storage operation of the heat storage body.

[0012] Further, there is provided detection means for detecting the temperature of the hot air flowing out of the first outlet, and the control means controls the opening / closing operation of the first or second opening / closing plate based on the detection result of the detection means. It is this.

A heat storage element having a heating element, a heat insulating material disposed outside the heat storage element so as to cover the heat storage element, and a first inlet and a first inlet formed at a peripheral portion of the heat storage element; A first air path having an outflow port, a second air path formed along an outer peripheral surface of the heat insulating material and having a second inflow port and a second outflow port, and the first inflow port And a first opening / closing plate provided at the first outlet to be openable and closable, and an opening / closing opening, and a second opening / closing plate provided at the second inlet and the second outlet to be openable / closable, respectively. 2 opening / closing plate, and control means for controlling the opening / closing operation of the first or second opening / closing plate, wherein the control means controls the flow of the first and second air passages during the heat storage operation to the heat storage body. The opening and closing plate is controlled so as to close the openings of the inlet and the outlet.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

 Embodiment 1 FIG.

FIG. 1 is a sectional view showing a configuration of a heat storage heater according to Embodiment 1 of the present invention, and FIG. 2 is a control block diagram thereof. In the figure, 1 is a main body formed in a box shape, 2 is a plurality of intake ports provided on the upper rear surface of the main body 1 and has an opening shape of a slit shape, and 3 is provided on a lower front surface of the main body 1 and has a substantially square opening shape. It is a shape outlet. Reference numeral 4 denotes a cylindrical air passage having a substantially L-shaped cross section communicating the intake port 2 and the air outlet 3 from the rear to the bottom in the main body 1. Reference numeral 5 denotes an electric blower attached to the inside of the blower passage 4 and having a blower fan 5 a at a position facing the intake port 2. Reference numeral 6 denotes a warm air heater, which is a positive temperature coefficient thermistor provided near the outlet 3 at the bottom of the air passage 4, and 7 denotes a partition plate for fixing the hot air heater 6, and an upper portion of the partition plate 7 is provided at the bottom of the air passage 4. A base plate 8 constituting the upper surface is fixed to the main body 1.

A heat storage device 9 is mounted and fixed on the upper surface of the base plate 8. Numeral 10 is a heat storage body made of a brick mainly composed of magnesium oxide provided at a substantially central portion of the heat storage device 9 and has a heat storage heater 11 as a sheathed heater embedded therein. Reference numeral 12 denotes a heat storage case provided on the outer periphery of the heat storage body 10, which fixes the heat storage body 10 to the base plate 8,
A substantially inverted U-shaped first air passage 13 having a predetermined gap is formed between the heat storage case 12 and the heat storage body 10.
Reference numeral 14 denotes a first heat insulating material arranged so as to cover the outer surface of the heat storage case 12, and 15 denotes a second heat insulating material opposed to the outer periphery of the first heat insulating material 14 at a predetermined interval. The gap between the first heat insulating material 14 and the second heat insulating material 15 substantially reverses U
A character-shaped second air path 16 is formed.

Reference numeral 17 denotes a first inflow hole formed in the base plate 8 communicating the lower back side of the first air passage 13 and the air passage 4;
Reference numeral 18 denotes a first outlet formed in the base plate 8 which communicates the lower front side of the first air passage 13 and the outlet 3 side of the air passage 4. Similarly, reference numeral 19 denotes a second inlet formed in the base plate 8 that communicates the lower rear side of the second air passage 16 with the air passage 4, and reference numeral 20 denotes a lower front side of the second air passage 16 and the air passage. 4 is a second outlet formed in the base plate 8 communicating with the outlet 3 side of the outlet 4.

A first opening / closing plate 21 for opening and closing the first inflow port 17 has one end rotatably disposed on a shaft (not shown) provided on the base plate 8. I have. 2
2 is a second opening / closing plate for opening and closing the first outlet 18;
Like the first opening / closing plate 21, it is rotatably disposed on a shaft (not shown) provided on the base plate 8. 23 is the second
A third opening / closing plate for opening and closing the inflow port 19 of
One end is rotatably disposed on a shaft (not shown) of the base plate 8. Reference numeral 24 denotes a fourth opening / closing plate which opens and closes the second outlet 20. Like the third opening / closing plate 23, one end is rotatably disposed on a shaft (not shown) of the base plate 8. ing. First open / close plate 21 and second open / close plate 22
A first geared motor 25 fixed to the base plate 8 is connected to a shaft (not shown) connecting the third opening / closing plate 23 and the fourth opening / closing plate 24 (not shown). 2), a second geared motor 26 fixed to the base plate 8 is connected. Reference numeral 27 denotes a temperature sensor installed on the partition plate 7 below the first outlet 18 and detects the temperature of warm air passing through the first outlet 18.

An operation unit 28 is provided on the upper surface of the main body 1. The operation unit 28 includes a control circuit unit 29 and an operation panel 30. The control circuit unit 29 includes a power supply board 32 having a microcomputer stored in a circuit storage box 31.
And an operation board 33. The operation panel 30 includes a heat storage button 34 for instructing the control circuit unit 29 to energize the heat storage heater 11, and the first opening / closing plate 21 by the electric blower 5, the hot air heater 6, and the first geared motor 25. A rapid heating button 35 for instructing the operation of the second opening / closing plate 22 to the control circuit 29; and a heating button 3 for instructing the control circuit 29 to operate the electric blower 5 and the hot air heater 6.
6 is provided so as to be exposed on the upper surface portion in the main body 1.

Next, the operation will be described. Operation panel 3
When the heat storage button 34 is pressed, the input signal is input from the operation board 33 to the power supply board 32, and the power supply board 3
The control circuit in the microcomputer 2 operates to energize the heat storage heater 11, and the heat storage body 10 is heated by the heat storage heater 11. Then, heat is gradually stored in the heat storage body 10 for a preset time, for example, about 10 hours.
Heat storage is completed in 0 minutes. When storing heat, as shown in FIG.
First inlet 17, first outlet 18, second inlet 1
9 and the second outlet 20 are closed by a first opening / closing plate 21, a second opening / closing plate 22, a third opening / closing plate 23 and a fourth opening / closing plate 24, and the first air passage 13 and the second Of the air into the air passage 16 is shut off. Thereby, the heat insulation by the first heat insulating material 14 and the second heat insulating material 15 and the second air passage 16 become an air heat insulating layer, and a triple heat insulating structure is formed to store heat.

When the rapid heating button 35 provided on the operation panel 30 is pressed after the completion of the heat storage, the input signal is input from the operation board 33 to the power supply board 32, and the control circuit in the microcomputer operates to activate the first circuit. The first geared motor 25 is driven to rotate the first opening / closing plate 21 and the second opening / closing plate 22 as shown in FIG. 4, and when the opening angle reaches a preset opening angle, for example, 45 degrees, the first geared motor 25 is turned on. The driving of the motor 25 stops. Thereby, the first inflow port 19 and the first outflow port 18 are opened.

The hot air heater 6 and the electric blower 5 are energized simultaneously with the pressing operation of the rapid heating button 35. When the electric blower 5 is driven, the air outside the main body 1 is introduced from the intake port 2 into the blower passage 4, exchanges heat when passing through the heated hot air heater 6, and becomes hot air to form the outlet 3. More released.

A part of the external air sucked from the air inlet 2 is supplied to the first inlet 1 by the opened first opening / closing plate 21.
7 is guided into the first air path 13. First air path 13
While passing through the inside, the heat stored in the heat storage body 10 is absorbed and exchanged to become warm air.
Emitted from 8.

Then, the temperature of the warm air flowing out of the first outlet 18 is detected by a temperature sensor 27 provided at a position where the warm air is directly applied, and a preset first temperature is detected.
When the temperature exceeds a predetermined temperature, for example, 80 degrees or more, this temperature information is input to the power supply board 32, and a control circuit in the microcomputer of the power supply board 32 operates to drive the second geared motor 26, as shown in FIG. As described above, the third opening and closing plate 23 and the fourth opening and closing plate 24 are set at a predetermined opening angle, for example, 45 degrees.
Then, the driving of the second geared motor 26 is stopped. Thereby, the second inlet 19 and the second outlet 20 are opened. Then, a part of the air sucked from the intake port 2 flows into the second air passage 16 from the second inflow port 19, and the first heat insulating material is passed while passing through the second air passage 16. The heat stored in the heat insulating materials of the second heat insulating material 14 and the second heat insulating material 15 is absorbed, and heat exchange is performed to generate a warm-temperature wind.
From the outflow port 20.

The warm air blown out of the first outlet 18, the warm air blown out of the second outlet 20, and the warm air that has passed through the hot air heater 6 are supplied to the air passage near the outlet 3. 4
And blows out from the outlet 3 to the front of the main body 1.

The amount of heat stored in the heat storage body 10 of the heat storage device 9 decreases as the rapid heating operation time elapses, and the temperature of the hot air flowing out of the first outlet 18 decreases. When the temperature sensor 27 detects that the temperature is lower than the second predetermined temperature, for example, 70 degrees or less, the detection signal is input to the power supply board 32 and the microcomputer detects the temperature. A certain control circuit operates to drive the second geared motor 26 in the reverse direction.
As a result, the third opening / closing plate 23 and the fourth opening / closing plate 24 rotate, and the second inlet 19 and the second outlet 20 are closed.

Further, the temperature detected by the temperature sensor 27 is
Below a preset third predetermined temperature, for example 60
In this case, the control circuit in the microcomputer of the power supply board 32 operates to drive the first geared motor 25 in the reverse direction to rotate the first opening / closing plate 21 and the second opening / closing plate 22 as described above. First inlet 17 and first outlet 18
, The drive of the first geared motor 25 is stopped. Thereafter, the air sucked from the intake port 2 is not sent into the heat storage device 9, but the whole air is sent to the hot air heater 6, and normal heating is performed only by the hot air heater 6.

When normal heating is performed without using the amount of heat stored in the heat storage device 9, when the heating button 36 of the operation panel 30 is pressed, an input signal is input from the operation board 33 to the power supply board 32, The control circuit in the microcomputer of the power supply board 32 is operated, and the electric blower 5
Is driven to energize the warm air heater 6, the outside air is sucked from the air inlet 2, heat exchange is performed through the warm air heater 6, and is discharged from the outlet 3 as warm air.

In the state where the heat storage body 10 in the heat storage device 9 is not heated, the rapid heating button 35 on the operation panel 30 is operated.
Is pressed, the input signal is input from the operation board 33 to the power supply board 32 in the same manner as when the rapid heating button 35 is pressed, and the control circuit in the microcomputer of the power supply board 32 operates to activate the first heating button 35. 1 geared motor 2
5, the first opening / closing plate 21 and the second opening / closing plate 22 rotate, and the first inlet 19 and the first outlet 18 are opened.

However, the air discharged from the first outlet 18 without heat exchange by the heat storage unit 10 is supplied to the temperature sensor 27.
However, when it is detected that the temperature is equal to or lower than a predetermined third predetermined temperature, for example, equal to or lower than 60 degrees, this detection signal is input into the power supply board 32, and the control circuit in the microcomputer of the power supply board 32 operates. The first geared motor 25 is driven to rotate in the reverse direction, and the first opening / closing plate 21 and the second opening / closing plate 22 are rotated so that the first inlet 17 and the first outlet 18 are rotated.
Is closed. Thereafter, the air sucked from the intake port 2 is not sent into the heat storage device 9 and the whole air is
And normal heating only by the hot air heater 6 is performed.

During the rapid heating operation, the rapid heating button 3
5 is pressed again to stop the operation, a stop signal is input from the operation board 33 to the power supply board 32, and the control circuit in the microcomputer of the power supply board 32 operates to operate the first geared motor. The first opening / closing plate 21 and the second opening / closing plate 22 are rotated by the reverse rotation of 25, and the second inlet 19 and the first outlet 18 are closed. Similarly, the control circuit is operated to drive the first geared motor 26 to rotate in the reverse direction, so that the third opening / closing plate 23 and the fourth opening / closing plate 24 rotate and
The inlet 19 and the second outlet 20 are closed. At the same time, the drive of the electric blower 5 and the energization of the hot air heater 6 are stopped.

As described above, according to the present invention, the air inlet and outlet of the first air passage and the second air passage are closed by the open / close plate during heat storage, so that air convection occurs during heat storage. In addition, since the second air path can be used as an air-insulating layer as a closed space, the heat-insulating effect is increased, heat radiation during heat storage is reduced, and sufficient heat storage is achieved in a short time by securing a reliable heat-insulating layer. The effect that can be obtained can be obtained.

Further, when rapid heating is performed, external air is introduced into the first air passage and the second air passage by an electric blower, so that heat in the heat storage device can be efficiently extracted in a short time as warm air. The effect that can be obtained can be obtained.

Embodiment 2 FIG. 6 is a sectional view showing a configuration of a heat storage heater according to Embodiment 2 of the present invention. In the figure, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted. Reference numeral 13 a denotes a substantially inverted U-shaped first air passage formed at a predetermined interval on the periphery of the heat storage body 10, and the heat storage body 10 a is in contact with the heat storage case 12.
The operation of this embodiment is the same as that of the first embodiment,
Description is omitted.

According to this configuration, not only the same effects as in the first embodiment described above can be obtained, but also the air that has flowed into the first air passage during rapid heating comes into contact with many surfaces of the heat storage material and heat exchange occurs. Therefore, it is possible to obtain an effect that the heat of the heat storage body can be efficiently extracted in a shorter time as warm air.

[0036]

As described above, according to the present invention, since the inlet and outlet of the air passage are closed by the open / close plate during heat storage, air convection does not occur during heat storage, and sufficient heat can be obtained in a short time. There is an effect that heat can be stored.

Also, the first and second air paths of the first and second
And the second inlet and the first and second outlets are closed by the first and second opening / closing plates, so that air convection does not occur during heat storage, and the second air passage is closed. Since the space can be used for the air heat insulating layer, the heat insulating effect is increased, heat radiation during heat storage is reduced, and sufficient heat storage can be performed in a short time by securing a reliable heat insulating layer.

Further, the first or second detecting means detects the temperature of the hot air flowing out of the first outlet and detects the temperature of the first or second hot air.
Since the opening and closing operation of the opening and closing plate is controlled, appropriate temperature adjustment can be performed.

Further, since the first air passage is formed at the peripheral edge of the heat storage body, the air that has flowed into the first air passage at the time of rapid heating comes into contact with many surfaces of the heat storage body and exchanges heat. The heat can be efficiently extracted in a shorter time as the warm air.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a configuration of a heat storage heater according to Embodiment 1 of the present invention.

FIG. 2 is a control block diagram of the heat storage heater according to Embodiment 1.

FIG. 3 is a cross-sectional view showing the heat storage heater according to Embodiment 1 in a fully closed state of the open / close plate.

FIG. 4 shows first and second heat storage heaters according to the first embodiment.
It is sectional drawing which shows the opening / closing plate opening state.

FIG. 5 is a cross-sectional view of the heat storage heater according to Embodiment 1 in a fully opened state of the open / close plate.

FIG. 6 is a cross-sectional view illustrating a configuration of a heat storage heater according to Embodiment 2.

FIG. 7 is a cross-sectional view showing a configuration of a conventional heat storage heater.

[Explanation of symbols]

1 body, 2 inlets, 3 outlets, 4 ventilation passages, 5
Electric blower, 6 hot air heater, 7 partition plate, 8 base plate, 9 heat storage device, 10 heat storage body, 11 heat storage heater, 12 heat storage case, 13 first air path, 14 first
Thermal insulation, 15 second thermal insulation, 16 second air path, 1
7 first inlet, 18 first outlet, 19 second inlet, 20 second outlet, 21 first opening / closing plate, 2
2 second opening / closing plate, 23 third opening / closing plate insulation case, 2
4 Fourth open / close plate, 25 first geared motor, 26
2nd geared motor, 27 temperature sensor, 28 operation section, 29 control circuit section, 30 operation panel, 31 circuit storage box, 32 power supply board, 33 operation board, 34 heat storage button, 35 rapid heating button, 36 heating button.

Claims (4)

[Claims] 1. A heat storage element having a heating element, a heat insulating material disposed outside the heat storage element so as to cover the heat storage element, and an inlet formed between the heat insulating material and the heat storage element And an air passage having an outlet, an opening / closing plate provided at the inlet and the outlet so as to be openable and closable, respectively, and covering an opening, and control means for controlling an opening / closing operation of the opening / closing plate, wherein the control means comprises: A heat storage heater, wherein the opening / closing plate is controlled so as to close the openings of the inlet and the outlet during a heat storage operation of the heat storage body. 2. A heat storage element having a heating element, a heat insulating material disposed outside the heat storage element so as to cover the heat storage element, and a first heat storage element formed between the heat insulating material and the heat storage element. A first air passage having an inlet and a first outlet, a second air passage formed along an outer peripheral surface of the heat insulating material, the second air passage having a second inlet and a second outlet, A first opening / closing plate that is provided at the first inlet and the first outlet so as to be openable and closable, and that opens and closes an opening; and a second opening and a second outlet that are provided so as to be openable and closable, respectively. A second opening / closing plate that opens and closes the opening by means of a switch, and control means for controlling the opening / closing operation of the first or second opening / closing plate, wherein the control means controls the first and the second during the heat storage operation to the heat storage body. A heat storage heater characterized in that the opening / closing plate is controlled so as to close an opening of an inlet and an outlet of a second air passage. 3. A detecting means for detecting a temperature of hot air flowing out from a first outlet, wherein the control means controls an opening / closing operation of the first or second opening / closing plate based on a detection result of the detecting means. The heat storage heater according to claim 2, wherein the heating is performed. 4. A heat storage element having a heating element, a heat insulating material disposed outside the heat storage element so as to cover the heat storage element, and a first inlet formed at a peripheral portion of the heat storage element, A first air passage having a first outlet, a second air passage formed along an outer peripheral surface of the heat insulating material and having a second inlet and a second outlet, A first opening / closing plate provided at the inlet and the first outlet so as to be openable and closable, and an opening and closing, and an opening provided at the second inlet and the second outlet so as to be openable and closable; A second opening / closing plate for controlling the opening / closing operation of the first or second opening / closing plate, wherein the control unit controls the first and second air paths during the heat storage operation to the heat storage body. A heat storage heater characterized in that the opening and closing plate is controlled so as to close the openings of the inlet and the outlet of the heat storage device.