JPH08121872A - Storage electric heating appliance - Google Patents

Abstract

PURPOSE: To supply comfortable warm air by dying out microorganism and the like suspended in heating air. CONSTITUTION: A storage air duct 7 communicating with an air suction inlet 8 and an air exhaust outlet 9 and opposed to a storage medium 6 is provided in a body case frame 1 having the inlet 8 and the outlet 9, and a storage heating radiation heater 12 is provided in the duct 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat storage electric heating apparatus for heating indoor air by an electric heater and a heat storage body to heat hot air.

[0002]

2. Description of the Related Art A conventional heat storage electric heating system has a structure as shown in FIG.
Will be described with reference to.

In FIG. 4, 101 is a main body frame,
Inside, the heat insulating material 10 having the air duct case 102 on its surface
3 and the heat storage body 104 are accommodated, and the heat storage body 1
The heat storage body air passage 105 is formed so as to surround 04. Reference numeral 106 is an air intake port formed in the main body case frame 101, 107 is an air exhaust port formed in the main body case frame 101, and the air intake port 106 and the air exhaust port 107 are communicated with each other by a heat storage body air passage 105. 108 is an air intake port 1
A heat storage blower provided near the inlet 109 of the heat storage air duct 105 in order to send the heating air from No. 06 into the heat storage air duct 105, and 110 is an air intake port in parallel with the heat storage air duct 105. An electric warm air heater air passage for communicating 106 and the air outlet 107, and an electric warm air heater air passage 110.
, A heater for electric warm air 112, a blower 112 for electric warm air for feeding the heating air into the electric warm air heater air passage 110, and a heat storage heater 113 for heating the heat storage body 104 to store heat therein. It is sandwiched between the heat storage bodies 104 divided into, and is in a state of being incorporated inside the heat storage body 104. In addition, 114 is an exit of the heat storage body air passage 105.

In the above structure, when heat is stored in the heat storage body 104, when the heat storage body heater 113 is energized, the heat storage body 104 is heated by the heat of the heat storage body heater 113 being directly transferred from the inside. The heat is stored.

Next, when the heating operation is performed, the heat storage body blower 108, the heat storage body heater 113, the electric warm air blower 112 and the electric warm air heater 111 are energized. The heating air sucked through the air suction port 106 due to the operation of the heat storage body blower 108 receives heat from the heat storage body air passage 10 through the inlet 109.
It is blown to 5 and becomes a flow C. Further, the air blown to the electric warm air heater air passage 110 by the operation of the electric warm air blower 112 forms a flow D.

[0006] The heating air flowing in the heat storage air passage 105 is
The heat is exchanged by the heat storage body 104 to become warm air, and the air flowing in the electric warm air heater air passage 110 is heated by the electric warm air heater 11.
It is heated by 1 to become warm air, and both are combined and mixed to become warm air of a predetermined temperature and are blown out from the air outlet 107. When the heat storage body 104 is not storing heat, the operation of the heat storage body blower 108 is stopped and the heat storage body air passage 105 is stopped.
The flow C of the air flowing through is shut off, and the blower 11 for electric warm air is provided.
2 and the warm air for the electric warm air heater 111 is blown out from the air outlet 107 by only the flow D blown to the electric warm air heater air passage 110.

[0007]

As the housing becomes highly airtight, indoor pollution by microorganisms such as bacteria, viruses, fungi and mites has come to occur. For those with an allergic constitution, these microorganisms cause allergic diseases such as asthma, atopic dermatitis, and rhinitis. It has been desired to kill microorganisms.

In the conventional heat storage electric heating apparatus, the surface temperature of the heat storage heater 113 during heating is in the temperature range of about 600 to 900 ° C., which is highly effective in killing microorganisms. There is a problem in that it does not act to kill microorganisms because it does not come into direct contact with the heating air that flows inside the heat storage body 104 and flows into the heat storage body air passage 105.

Further, the heat storage body 104 normally stores heat at about 500 ° C., but in this temperature range, the effect of killing microorganisms floating in the heating air is small, and the heater for electric warm air 111 is Usually, a ceramic heater is used. However, since this ceramic heater has a self-controlling resistance-temperature characteristic, the heater for electric warm air 111
It has a problem that it always acts in the temperature range of about 200 to 300 ° C. and has less effect of killing microorganisms.

Further, there has been a proposal to use a heater of a type other than a ceramic heater as the heater for electric warm air 111, but in that case, the heater wire has a small contact area with the heating air and has an action of killing microorganisms. There was also the problem of not having it.

The present invention enhances the effect of killing microorganisms floating in the heating air by bringing the heater for heating the heat storage body into contact with the heating air, so that comfortable warm air can be blown. The present invention aims to provide a heat storage electric heating device.

[0012]

In order to achieve the above object, in the heat storage electric heating apparatus of the present invention, an air intake port and an air discharge port are provided in a main body case frame accommodating a heat storage body, and the main body case frame is provided. A hot air passage was formed inside of the air inlet, which was connected to the air inlet and the air outlet, and connected to the heat storage body facing the heat storage body, and a radiant heater was provided in the heat storage body air passage. It is a thing.

As the radiant heater, it is effective to use a radiant heater formed by inserting a heating element into a hollow tubular body capable of releasing radiant heat, and a deodorizing catalyst layer is formed on the outer surface of the hollow tubular body. Is preferably formed.

Further, it is effective to form a reflecting surface on the wall surface of the heat storage body air passage facing the heat storage body so that the radiant heat from the radiant heater can be effectively reflected.

Further, a water droplet supply unit may be provided to supply water droplets to the surface of the heat storage body facing the radiant heater.

[0016]

In the heat storage electric heating apparatus configured as described above, the heat storage body is heated by the radiant heater provided in the heat storage body air passage, and at the same time, the heating air flowing through the heat storage body air passage facing the heat storage body is Since it is heated by the radiant heat radiated from the radiant heater in the entire circumferential direction, the microorganisms can be effectively killed.

When a radiant heater in which a heating element is inserted into a hollow tubular body capable of emitting radiant heat is used to heat to a temperature at which microorganisms are killed, the hollow tubular body which has reached a high temperature has a large surface area, so that it is used as heating air. The contact area is increased and the microorganisms can be more effectively killed. When the deodorizing catalyst layer is formed on the outer surface of the hollow tubular body, the deodorizing effect is added by the action of the catalyst layer. The heating air is no longer contaminated.

Further, when a reflecting surface capable of reflecting the radiant heat of the radiant heater is formed on the wall surface of the heat-collecting body air passage facing the heat-accumulating body, the utilization efficiency of the radiant heat of the radiant heater is improved, and the heat-accumulating is more effectively performed. The body and the heating air are heated, and at the same time, the temperature of the wall surface of the heat storage body air passage facing the heat storage body also rises, so that the contact area with the heating air increases and the microorganisms can be accurately killed. .

Furthermore, when water drops are supplied from the water drop supply unit to the surface of the heat storage body facing the radiant heater, the water drops become steam due to the heat of the heat storage body and fill the heat storage body air passage to highly effectively kill the microorganisms. Since a high temperature and high humidity atmosphere is formed, microorganisms can be more effectively killed.

[0020]

EXAMPLE An example of the present invention will be described with reference to FIG. 1 showing a schematic sectional view of a heat storage electric heating system.

In FIG. 1, reference numeral 1 denotes a body case frame, and the inside is divided into a warm air passage chamber 2 and an air passage chamber 3. Four
Is a heat insulating material provided on the surface thereof with an air passage case 5 formed of metal sheet metal and having a heat reflection effect, and 6 is a heat storage body, which is the hot air passage chamber 2
The heat storage body air passage 7 is formed so as to surround the heat storage body 6 by the heat insulating material 4 and the heat storage body 6, and the heat storage body air passage 7 is open to the air passage chamber 3. Reference numeral 8 is an air inlet, and 9 is an air outlet, which are formed in the air passage chamber 2. Reference numeral 10 is a blower, and 11 is a control unit for controlling the blower 10, which is housed in the air passage chamber 2. Reference numeral 12 denotes a radiant heater for heat storage heating provided in the heat storage body air passage 7. The heat storage body 6 is heated by ensuring a gap between the heat storage body 6 and the air for heating and allowing the heat storage body 6 to face the heat storage body 6. In addition, the heating air flowing in the heat storage body air passage 7 is heated. Reference numeral 13 denotes a heating radiant heater that heats the heating air that flows in the heat storage body air passage 7, and does not operate when the radiant heater for heat storage heating 12 heats the heat storage body 6 to store heat. It operates only during the heating operation in which the device operates to heat the heating air flowing through the heat storage body air passage 7. Reference numeral 14 denotes a bypass air passage for directly introducing the heating air sucked from the air intake opening 8 into the air discharge opening 9 without flowing into the heat storage air passage 7.
The air at room temperature flowing therethrough merges and mixes with the warm air from the heat storage body air passage 7, and uses the heating air blown out from the air outlet 9 as the warm air of a predetermined temperature. In addition, 15 is an air flow guide plate provided inside the air passage chamber 3, 16 is an inlet of the heat storage body air passage 7, and 17 is an outlet thereof.

In the heat storage electric heating apparatus configured as described above, when heat is stored in the heat storage body 6, when the control unit 11 operates to energize the radiant heater 12 for heat storage heating, the heat storage body 6 is heated by the radiant heat. Is stored and heat is stored. Next, in the heating operation, when the blower 10, the heat storage heating radiant heater 12 and the heating radiant heater 13 are energized by the operation of the control unit 11, the air blower 10 is operated to heat the air sucked through the air intake port 8. The air is divided into a flow A sent from the inlet 16 to the heat storage body air passage 7 and a flow B sent to the bypass air passage 14.

The heating air flowing into the heat storage body air passage 7 is heat-exchanged by the heat storage body 6, the heat storage heating radiant heater 12 and the heating radiant heater 13 to become warm air, and from the outlet 17 of the heat storage body air passage 7. It flows out and reaches the bypass airway 14,
It merges with room temperature air flowing through the bypass air passage 14 and becomes hot air of a predetermined temperature and is blown out from the air outlet 9. In this case, since the radiant heater 12 for heat storage heating is heated to a temperature of about 600 to 900 ° C. in the configuration as shown in FIG. 2, the radiant heat sufficiently heats the heat storage body 6 and also the heating heater flowing in. Since it is heated in contact with air over a wide contact area, the floating microorganisms can be effectively killed. The heating radiant heater 13 may also be configured as shown in FIG.

When the heat is not stored in the heat storage body 6, the heating air flowing in the heat storage body air passage 7 is heated by the heat storage heating radiant heater 12 and the heating radiant heater 13, and is discharged from the bypass air passage 14. It is mixed with room temperature air and blown out from the air outlet 9. Also in this case, since the radiant heater 12 for heat storage heating is heated to a temperature of about 600 to 900 ° C., microorganisms can be killed.

In FIG. 2, 18 is a hollow tubular body made of heat-resistant glass capable of releasing radiant heat, 19 is a heating element inserted in the hollow tubular body 18, 20 is a deodorizing catalyst layer coating the surface of the hollow tubular body 18, An insulator portion 22 in which a plurality of hollow tubular bodies 18 into which the heating elements 19 of 21 are inserted is integrated, and 22 is a lead terminal. The radiant heater 12 for heat storage heating formed in this manner has a hollow tubular body 18 and thus is about 600-9.
Since the temperature is 00 ° C. and the heat radiation area is wide, the contact area with the heating air is large.

Further, when the air passage case 5 formed of metal sheet metal and having a heat reflection effect is provided on the surface of the heat insulating material 4 facing the heat storage body 6 and forming the heat storage body air passage 7, the heat storage heating is performed. Since the thermal efficiency of the radiant heater 12 and the heating radiant heater 13 can be improved, the radiant heat is efficiently dissipated to the heat storage body 6. At the same time, the radiant heat from the radiant heater 12 for heat storage and the radiant heater 13 for heating is dissipated in the entire circumferential direction to heat the air passage case 5, but the heat capacity of the air passage case 5 is small, and the outside thereof is covered by the heat insulating material 4. Since it is insulated, the temperature of the air duct case 5 having a large contact area with the heating air rises above the temperature of the heat storage body 6 and becomes a temperature close to the radiant heater 12 for heat storage heating, and the killing efficiency of microorganisms is further enhanced. It will be expensive.

Further, as shown in FIG. 3, the warm air passage chamber 2
If a water droplet supply unit 23 is provided on the surface of the heat storage body 6 so that the water droplets can be supplied to the surface of the heat storage body 6 facing the radiant heater 12 for heat storage heating, the water drops supplied to the surface of the heat storage body 6 are used for the heat storage body 6 and the heat storage heating. The radiant heat of the radiant heater 12 changes to steam filling the inside of the heat storage body air passage 7 to form a hot atmosphere of high temperature and high humidity. Since the microorganisms have a high killing effect in an atmosphere having a high temperature and a high humidity, the microorganisms can be effectively killed even when the temperature of the heat storage air duct 7 is as low as 600 ° C or lower.

[0028]

Since the present invention is constructed as described above, it has the following effects.

A radiant heater is provided in the heat storage body air passage into which the heating air flows, and the radiant heat of the radiant heater heats the heat storage body and the heating air, so that the heating air becomes warm air of a predetermined temperature and floats. The stored microorganisms are killed by radiant heat, and a heat storage electric heating device capable of comfortable heating is obtained.

When a heating element is formed as a radiant heater by inserting a heating element into a hollow tubular body capable of releasing radiant heat, the contact area with the heating air becomes large and the temperature becomes high, so that the microorganisms are effectively killed, When the surface of the hollow tubular body is covered with a deodorizing catalyst layer, a deodorizing effect is added and a more comfortable heating environment can be obtained.

When the wall surface of the heat storage body air passage facing the heat storage body has a heat reflecting function, radiant heat can be efficiently dissipated in the heat storage body, and the temperature of the heat storage body air passage can be increased. Microorganisms can be effectively killed.

Further, the effect of killing microorganisms can be further enhanced by filling the heat storage air passage with steam to create a high temperature and high humidity atmosphere.

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a heat storage electric heating device according to an embodiment of the present invention.

FIG. 2 is a cutaway side view of a main part of a radiant heater for heat storage heating used in the same heat storage electric heating device.

FIG. 3 is a schematic cross-sectional view showing a modified example of the heat storage electric heating device.

FIG. 4 is a schematic cross-sectional view of a conventional heat storage electric heating device.

[Explanation of symbols]

 1 Body Case Frame 4 Heat Insulation Material 5 Air Channel Case 6 Heat Storage Body 7 Heat Storage Body Air Path 8 Air Intake Port 9 Air Outlet Port 12 Heat Storage Heating Radiant Heater 13 Heating Radiant Heater 18 Hollow Tubular Body 19 Heating Element 20 Deodorizing Catalyst Layer 23 Water drop supply unit

Claims (5)

[Claims] 1. A main body case frame accommodating a heat storage body is provided with an air intake port and an air exhaust port, and inside the main body case frame is in communication with the air intake port and the air exhaust port, and faces the heat storage body. A heat storage electric heating device in which a hot air passage is formed by connecting the heat storage air passages, and a radiant heater is provided in the heat storage air passage. 2. The heat storage electric heating device according to claim 1, wherein a radiant heater is formed by inserting a heating element into a hollow tubular body capable of releasing radiant heat. 3. The heat storage electric heating device according to claim 2, wherein a deodorizing catalyst layer is formed on the outer surface of the hollow tubular body of the radiant heater. 4. The heat storage electric heating device according to claim 1, wherein a reflection surface that reflects the radiant heat of the radiant heater is formed on the wall surface of the heat storage body air passage that faces the heat storage body. 5. The heat storage electric heating device according to claim 1, further comprising a water drop supply unit that supplies water drops to a surface of the heat storage body facing the radiant heater.