JPH0875264A - Electric heat storage heating apparatus - Google Patents

Abstract

PURPOSE: To achieve a higher heating capability by increasing the heating value of a positive temperature coefficient thermistor heating body, a longer life by suppressing thermal effect on a blowing motor and an elimination of abnormality in heating operation even when a suction port is covered by preventing heat dissipation from a heat storage part during the storage of heat. CONSTITUTION: A hot air unit 2 and a heat storage unit 5 are arranged separately and the heating value of the hot air unit 2 is improved to obtain a large amount of air with the addition of hot air of the heat storage unit 5. The heat storage unit 5 is provided at an upper part of a body case 1 and a blowing section 3 for hot air and a blowing section 6 for radiation are arranged below it to suppress a rise in the ambient temperature of the blowing sections. A radiation discharge port 5a is provided with a damper 12 to prevent heat radiation of the heat storage section 7. Suction of air is made possible at a heat discharge port 11 when a suction port 8 is closed to maintain a heating capability.

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 having a heat storage section.

[0002]

2. Description of the Related Art In recent years, electric heat storage heaters have been used to enhance the heating effect by releasing the heat stored in the heat storage section at the start of operation.

Conventionally, this kind of electric heat storage heater has generally been constructed as shown in FIG. That is, the body case 1
A heat storage device 103, a blower fan 104, and a positive temperature coefficient thermistor heating element 105 are arranged in a flow passage 102 provided inside 01. An intake port 106 is opened on the back surface of the main body case 101, and an air outlet 107 is provided on the front surface of the main body case 101. The blower fan 104 is driven by the blower motor 104a.

In the above structure, when performing heat storage heating, first, only the heat storage device 103 is energized to store heat, and then the blower motor 104a and the positive temperature coefficient thermistor heating element 105 are energized so that air is taken in through the intake port 106. The heated air passes through the heat storage device 103 to be warmed, is further sent to the positive temperature coefficient thermistor heating element 105, is heated, and is discharged from the air outlet 107 as warm air.

Further, when all the heat of the heat storage device 103 is released, or when the heat storage device 103 is not energized, the air taken in through the intake port 106 is heated only by the positive temperature coefficient thermistor heating element 105, and a normal warm air blower is used. It could be used as

[0006]

In such a conventional electric heat storage heater, since the heat storage device 103 and the positive temperature coefficient thermistor heating element 105 are arranged in the ventilation passage 102 at the front and rear, the intake port 106 is provided at the time of heat storage heating. The air taken in from is heated by the heat storage device 103, and the heated air is supplied to the PTC thermistor heating element 105. However, FIG.
As shown in (4), since the characteristic of the PTC thermistor heating element 105 is that the amount of heat generation decreases as the temperature of the sucked air rises, there is a problem that the heating function of the PTC thermistor heating element 105 cannot be fully exerted. .

Further, when only the heat storage device 103 is energized, the ambient temperature in the main body case 101 rises, and when the blower motor 104a is further energized to start the heat storage heating, the hot air from the heat storage device 103 is blown by the blower fan. Since it is transmitted to the blower motor 104a and the blower motor 104a, there is a problem that a countermeasure against high temperature of the blower motor 104a is required.

Further, when only the heat storage device 103 is energized, there is a problem that heat is dissipated to the outside through the flow passage 102 of the heat storage device 103 and the amount of heat storage is reduced.

In addition, when the intake port 106 provided on the back side is operated in close contact with the wall, there is a problem that the amount of air supplied to the heat storage device 103 is insufficient and the heating capacity is reduced.

The present invention is intended to solve the above problems, and it is a first object of the present invention to provide heating without reducing the amount of heat generation when performing heat storage heating.

A second object is to reduce the thermal influence of the heat storage device on the blower motor to prolong the service life.

[0012] A third object is to reduce the amount of heat escaping from the flow passage to prevent low heat storage.

A fourth object is to prevent the heating capacity from being deteriorated even when the intake port is used in close contact with the wall so that the supplied air volume does not become insufficient.

[0014]

The first means for achieving the first object of the present invention is a box-shaped main body case, a warm air unit and a heat storage unit provided in the main body case, and A heating element for warm air and a blower section for warm air that constitute a warm air unit, and a heat storage section and a blower section for radiating heat that configure the heat storage unit, and the heating element for warm air includes a positive temperature coefficient thermistor. It was done.

A second means for achieving the second object is a structure in which a warm air blower section and a heat radiation blower section are arranged below the heat storage section.

A third means for achieving the third object is to provide a heat radiation discharge port of the heat storage unit in the vicinity of the upper portion of the warm air discharge port of the warm air unit, and to release the heat radiation air to the heat radiation discharge port. The structure is provided with a damper that opens and closes by the wind force of the section.

A fourth means for achieving the fourth object has an intake port provided on the back surface of the main body case and a heat exhaust port provided on or near the top surface of the main body case, This heat exhaust port is configured to communicate with the intake side of the warm air unit and the heat storage unit.

[0018]

According to the present invention, by the structure of the above-mentioned first means, it is possible to increase the amount of warm air by separately providing the warm air unit and the heat storage unit and blowing the air, and at the same time, the warm air heating element comprising the positive temperature coefficient thermistor can be used at room temperature The amount of heat generation can be increased by sending in the air.

Further, according to the structure of the second means, since the heat storage section is provided above the warm air blowing section and the heat radiating blow section, there is little thermal influence on the lower part inside the main body case and the warm air unit Since the heat storage units are individually provided, room temperature air can flow into each of the air blowers to reduce a motor temperature rise in the air blowers.

Further, according to the structure of the third means, since the heat radiation discharge port of the heat storage unit is provided with the openable and closable damper, the heat passage of the heat storage unit is closed and the heat of the heat storage material is released while the heat storage heating element is energized. It does not dissipate, and when operating the heat radiating blower, the damper can be opened by the wind force to release the heat of the heat storage material.

According to the structure of the fourth means, when the intake port is in close contact with the wall and is used in a closed state, the heat storage unit and the warm air unit communicate with the exhaust port provided on the top surface of the main body case or the like. Then, it is possible to take in air, and it is possible to prevent a decrease in heating capacity.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS. 1, 2 and 4. As shown in the figure, a warm air unit 2 and a heat storage unit 5 are separately provided in the main body case 1. The warm air unit 2 includes a warm air blowing unit 3 including a warm air fan 3a and a warm air motor 3b.
And the heating element 4 for warm air, such as a positive temperature coefficient thermistor, is arranged in the ventilation path 2a for warm air.

The heat storage unit 5 has a heat radiating fan 6a and a heat radiating motor 6b, and a heat radiating air blower 6 and a heat radiating fan 7a and a heat radiating material 7b. ing.

An intake port 8 is provided on the back surface of the main body case 1, an air outlet 9 is provided on the front surface of the main body case 1, and warm air from the hot air unit 2 and the heat storage unit 5 is provided on the upstream side of the air outlet 9. A merging section 10 for mixing is provided.

With the above structure, when performing the heat storage heating operation, first, the heat storage heating element 7a of the heat storage unit 5 is energized for 3 to 4 hours to store heat in the heat storage material 7b. Next, the energization of the heat storage heating element 7a is stopped and the heat radiating motor 6b is energized to release the heat stored in the heat storage material 7b. At the same time, the hot air motor 3b and the hot air heating element 4 of the hot air unit 2 are also energized to generate hot air from the hot air unit 2, and together with the hot air due to the heat radiation of the heat storage unit 5, a large heating is performed. Exert their abilities. The measured values of the heating capacity at this time are that the output of the warm air unit 2 is 1120 kcal / h and the output of the heat storage unit 5 is 780 kcal / h at room temperature of 20 ° C., and at the start of the heat storage heating operation, a heating operation equivalent to a total of 1900 kcal / h is performed. It will be possible.

When the heat storage unit 5 is not used,
By operating only the warm air unit 2, it can be used like an ordinary electric warm air machine.

As described above, according to the electric heat storage heater of the first embodiment of the present invention, the intake air is individually sent to the warm air unit 2 and the heat storage unit 5, so that the heat generation for warm air including the positive temperature coefficient thermistor. Since air at room temperature is supplied to the body 4, the amount of heat generated by the air is increased and the heating capacity can be increased.

Further, since the warm air from the warm air unit 2 and the warm air from the heat storage unit 5 join together and are blown out from the air outlet 9, the amount of warm air can be made larger than in the conventional case.
It is possible to shorten the heating start-up time of the room and give the user a comfortable feeling of heating due to an increase in the air volume.

Next, a second embodiment of the present invention will be described with reference to FIGS. The same components as those described in the first embodiment are designated by the same reference numerals and detailed description thereof will be omitted. As shown in the figure, the heat storage part 7 of the heat storage unit 5 is provided in the upper part of the main body case 1. In the lower part of the main body case 1, a heat-dissipating blower 6 for the heat storage unit 5 is provided.
And the warm air blower 3 of the warm air unit 2 are provided, and the heat storage unit 7
It is located in the lower position. The heat-dissipating air blower 6 and the warm air blower 3 can take in room temperature air from the air inlet 8. Further, a heat exhaust port 11 is provided on or near the top surface of the main body case 1.

With the above structure, the heat storage section 7 is disposed above the heat radiating blow section 6 and the warm air blowing section 3 and has the heat exhaust port 11 above the heat storage section 7, so that only the heat storage section 7 is provided. Exhaust heat generated when the power is energized is exhausted along with an ascending airflow from the intake port 8 to the exhaust port 11, and the lower part of the main body case 1 is hardly affected by the exhaust heat of the heat storage part 7.

Further, since both the heat-dissipating air blower 6 and the warm air blower 3 suck the indoor air from the air inlet 8 and blow the air toward the heat storage 7 and the warm air heat generator 4, respectively. The heat-dissipating air blower 6 and the warm air blower 3 are not affected by the hot air.

As described above, according to the second embodiment of the present invention,
The heat-dissipating blower 6 and the warm-air blower 3 are arranged below the heat storage unit 7 to reduce the influence of the exhaust heat of the heat storage unit 7, and the indoor air is sucked in so that the warm air is not directly sucked. As a result, the temperature rise of the heat radiation motor 6b and the warm air motor 3b can be suppressed to a low level, and the life of the motor can be extended.

Next, a third embodiment of the present invention will be described with reference to FIG. The same components as those described in the first and second embodiments are designated by the same reference numerals and detailed description thereof will be omitted.

As shown in the figure, the heat radiation discharge port 5b of the heat storage unit 5 is provided in the vicinity of the upper part of the warm air discharge port 2b of the warm air unit 2, and the heat radiation discharge port 5b and the warm air discharge port 2b both merge. It is directed to part 10. A damper 12 that opens and closes by wind force is attached to the heat radiation discharge port 5b. The heat storage section 7 is kept warm by a heat insulating material 13 provided in the surroundings to prevent heat from being dissipated to the surroundings.

With the above structure, when the heat storage heating element 7a is energized, the heat stored in the heat storage portion 7 tries to escape from the heat radiation discharge port 5b through the heat radiation ventilation passage 5a.
Since the damper 12 is closed, there is no air flow,
It is possible to prevent the heat from being dissipated from the heat radiation outlet 5b.

Further, the warm air from the heat storage unit 5 is mixed with the warm air of the warm air unit 2 at the merging portion 10 by the damper 12 and blown out, whereby the warm air temperature and the wind speed can be made uniform.

As described above, according to the third embodiment of the present invention,
A damper can be installed at the heat discharge outlet of the heat storage unit to prevent heat release from the heat storage unit, and the damper can be opened by the wind force of the heat radiation blower unit to mix the warm air of the heat storage unit with the warm air of the warm air unit. The warm air temperature and the wind speed can be made uniform to give the user a comfortable feeling of heating.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The same components as those described in the first to third embodiments are designated by the same reference numerals and detailed description thereof will be omitted.

As shown in the figure, the air radiating section 6 for heat radiation and the blast section 3 for warm air are sucking indoor air through an air inlet 8 provided on the back surface of the main body case 1. Further, the heat exhaust port 11 provided on or near the top surface of the main body case 1 and the intake side of the heat radiating blower 6 and the warm air blower 3 are provided in communication with each other.

With the above construction, when the heating operation is performed in the closed state where the intake port 8 is in close contact with the wall, the heat radiating blower 6 and the warm air blower 3 pass from the heat exhaust port 11 through the inside of the main body case 1. Since the indoor air is taken in, it is possible to prevent the insufficient heating capacity due to the insufficient intake amount.

As described above, according to the fourth embodiment of the present invention,
By connecting the exhaust heat outlet provided on or near the top surface of the main body case 1 to the intake side of the heat radiating blower and the warm air blower, even if the intake is blocked, the heating capacity can be reduced by reducing the supply air volume. You can prevent the decline.

[0042]

As is apparent from the above embodiments, according to the present invention, by providing the air blowing paths to the warm air unit and the heat storage unit separately, the heat generation amount of the warm air heating element of the warm air unit is increased. It is possible to provide an electric heat storage heater having the effect of increasing the heating capacity to improve the heating capacity.

Further, by disposing the heat storage section above the heat storage blower section and the warm air blower section, the heat effect from the heat storage section is extremely reduced, and the intake air of each blower section is made into indoor air. It is possible to provide an electric heat storage heater having an effect of suppressing the temperature rise of the blower motor and achieving a long life.

Further, since a damper that opens and closes is provided at the heat radiation discharge port of the heat storage unit to prevent heat radiation during heat storage, and a heat radiation discharge port with a damper is provided above the warm air discharge port. By mixing warm air with the warm air of the warm air unit, it is possible to provide an electric heat storage heater having the effect of making the warm air temperature and the wind speed uniform.

Further, since the heat exhaust port provided at or near the top surface of the main body case communicates with the intake side of the heat radiating blower and the warm air blower, the air intake provided at the back of the main body case Even if it is blocked, it does not reduce the supply air volume,
It is possible to provide an electric heat storage heater having an effect of maintaining heating capacity.

[Brief description of drawings]

FIG. 1 is a side sectional view of an electric heat storage heater according to first and fourth embodiments of the present invention.

FIG. 2 is an external perspective view of the main part seen through.

FIG. 3 is a side sectional view of a conventional electric heat storage heater.

FIG. 4 is a heat generation amount characteristic diagram of the heating element.

[Explanation of symbols]

 1 Main body case 2 Warm air unit 2a Warm air discharge port 3 Warm air blower unit 4 Warm air heating element 5 Heat storage unit 5a Heat radiation discharge port 6 Heat radiation blower unit 7 Heat storage unit 11 Heat exhaust port 12 Damper

Claims (4)

[Claims] 1. A box-shaped main body case, a warm air unit and a heat storage unit provided in the main body case, a warm air heating element and a warm air blower unit that constitute the warm air unit, and the heat storage unit. An electric heat storage heater having a heat storage part and a heat radiating fan part, the warm air heating element being a positive temperature coefficient thermistor. 2. The electric heat storage heater according to claim 1, wherein a warm air blower section and a heat radiation blower section are arranged below the heat storage section. 3. The heat radiating discharge port of the heat storage unit is provided in the vicinity of the upper part of the warm air discharge port of the warm air unit, and the heat radiating discharge port is provided with a damper that opens and closes by the wind force of the heat radiating blow section. Electric heat storage heater. 4. An intake port provided on the back surface of the main body case, and a heat exhaust port provided on or near the top surface of the main body case, the exhaust heat port being on the intake side of the warm air unit and the heat storage unit. The electric heat storage heater according to claim 1, which is communicated with the electric heat storage heater.