JP2924319B2 - Electric heater - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric hot air blower using a heat storage material.

[0002]

2. Description of the Related Art A conventional electric hot air blower energizes a heater to generate Joule heat and forcibly discharges and convects the heat with a blower. It was 15 A or less, that is, the capacity was 1500 W or less due to the limit allowable current capacity. 1500W
There is also a high-capacity type that exceeds the standard, but most of them have an AC 200V specification. Also, in cold regions and Europe and the United States, regenerative hot air fans have become widespread, but this uses only nighttime electric power to store heat in a heat storage material in the main body and dissipate heat during the day.

[0003]

SUMMARY OF THE INVENTION
With a hot air blower of 00W or less, the maximum heat dissipation is 1290k
cal / h, and the room had a heating capacity of about 6 tatami mats. For AC 200V type, the diffusion rate of 200V power supply is low at present,
With 200V wiring work, it has not reached the point where it can be used easily.

In a regenerative warm air blower, at night,
Since it is necessary to store all the heat radiated during the day, a large amount of heat storage material is required.As a result, the main body becomes large and heavy, a large installation space is required, On extremely low days, the amount of heat released during the day increased, and in the evening heating was impossible.

According to the present invention, the above-mentioned disadvantages are solved and an AC 10
It is an object of the present invention to provide a simple electric hot air blower having a high heating capacity and having no problem in installation even with a 0 V specification.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a heat storage material that stores heat by heating a heat storage heater and a hot air heater in an air passage, and a blower device is provided by an operation control device. Is stopped (during non-heating), power is supplied to the heat storage heater to store heat in the heat storage material, and power to the hot air heater is cut off. When the air blower is operating (during heating), power is supplied to the heat storage heater. This shuts off the power and makes it possible to energize the warm air heater.

[0007]

According to the present invention, the heat is stored in the heat storage material when the air supply is stopped (during non-heating) and the heater for the hot air is supplied during the air supply (during the heating). Is the sum of the amount of heat stored by the heat storage material and the amount of heat generated by the heater for hot air, so that a very large amount of heat can be released and a large space can be heated.

Further, since the heat storage heater and the hot air heater are not energized at the same time, the current value can be kept low (15 A or less), and a high heating capacity can be exhibited even with an AC 100 V specification.

[0009] Further, when the air supply is stopped (at the time of non-heating),
Since the heat is stored, the heat storage material can be reduced, and the warm air blower can be made compact and light, and can be easily handled at the time of installation or use.

[0010]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing one embodiment of the electric hot air blower of the present invention. Reference numeral 1 denotes an air passage provided inside the main body 2, and its outer periphery is covered with a heat insulating material 3. A heat storage material 4 made of a brick or the like is provided separately in the air passage 1, and a heat storage heater 5 is embedded in the heat storage material 4.
A blower 6 is provided on the windward side of the blower 1, and air is sucked from a suction port 7 provided in the main body 2 by the operation of the blower 6, and is blown into the blower 1. A hot air heater 8 is provided on the leeward side of the air passage 1, and the air passage 1 communicates with an outlet 9 provided in the main body 2.

The upper surface of the main body 2 serves as an operation unit, and an operation control device 10 is attached to the operation unit. As shown in the electric circuit diagram of FIG. 2, the operation control device 10 can select any one of a parallel circuit of the motor 11 which is a driving source of the hot air heater 8 and the blower 6 and a circuit of the heat storage heater 5. Has become. That is, the right terminal 1 of the operation control device 10 during non-heating
The circuit 0a is closed. At this time, only the heat storage heater 5 is energized, and the motor 11 and the hot air heater 8 are not energized. Further, at the time of heating, the terminal is switched to the left terminal 10b side, and at this time, only the motor 11 and the heater 8 for hot air are energized,
The heat storage heater 5 is not energized.

Reference numeral 12 denotes a power switch, and reference numeral 13 denotes an on / off switch of the heater 8 for hot air. Reference numeral 14 denotes a temperature control device attached to the heat storage material 4, which automatically turns on and off the heat storage heater 5 to keep the heat storage material 4 at a predetermined high temperature.

The heat storage material 4 has a heat storage capacity of about 2000 kcal and a weight of about 20 kg. The heat storage heater 5 has a power of about 1.5 kW, and stores about 2000 kcal of heat in the heat storage material 4 by energizing for about 2 hours. The hot air heater 8 is for heating the air passing through the air passage 1 and has a power of about 1.5 kW. Also, body 2
A caster 15 is provided on the lower surface of the device for easy movement.

Next, the operation of this embodiment will be described with reference to FIG. FIG. 3 schematically shows the operation state of this embodiment, that is, the elapsed time and the amount of stored heat, the amount of released heat, the energized state of the heat storage heater, and the energized state of the hot air heater.

In the non-heating state, that is, the operation control device 10
When the power switch 12 is turned on in a state where the heat storage material 5 is closed to the right terminal 10a, the power supply to the heat storage heater 5 is started and the heat storage material 4 is turned on.
Heat storage begins. After about 2 hours, the heat storage material 4 reaches a predetermined temperature, the temperature control device 14 operates, and the heat storage heater 5 is turned off. At this point, the heat storage in the heat storage material 4 is completed, and
A calorie of about 0 kcal is stored.

In this state, when the user switches the operation control device 10 to the heating state, that is, to the left terminal 10b side, the motor 11 is energized and the blower 6 is operated, and the air is sucked from the suction port 7 to blow the air. Air is sent into the road 1.
The air that has entered the air passage 1 touches the heat storage material 4 and is heated,
Proceed downwind in the ventilation path 1. When the operation control device 10 is set to the heating state, the heater 8 for hot air is also energized at the same time, and the air heated by the heat storage material 4 is further heated by the heater 8 for hot air and discharged from the outlet 9. The amount of heat released is about 2000 kac / h by the heat storage material 4 and about 12 kcal / h by the heater for hot air.
000 kcal / h, about 3200 kcal / h in total
The air volume is set so that

When the heating is continued, the heat storage amount of the heat storage material 4 gradually decreases, and after about one hour, the heat storage amount becomes almost zero, and the temperature control device 14 is turned on halfway. Never turn on. Therefore, the amount of heat released is only about 1200 kcal / h by the heater for hot air.
However, at this time, since about 3200 kcal of heat has already been emitted into the room, the room is warmed up even in a considerably large room, and thereafter, the amount of heat radiation (1200 kc
(al / h) is practically sufficient.

When the user stops the heating state, that is, switches the operation control device 10 to the right terminal 10a, the blower 6 is stopped, and the power supply to the hot air heater 8 is cut off. Is started. When the operation is stopped for about 2 hours, the heat storage in the heat storage material 4 is completed, and the heat storage material 4 returns to the initial level.

[0020]

As described above, according to the present invention, the heat is stored in the heat storage material when the air supply is stopped (during non-heating), and the hot air heater is energized during the air supply (during the heating). The amount of heat is the sum of the amount of heat stored by the heat storage material and the amount of heat generated by the heater for hot air, and a very large amount of heat can be released at a time, so that a large space can be heated. In particular, the room can be quickly warmed on a cold winter morning.

Further, according to the present invention, since the heat storage heater and the hot air heater are not energized at the same time, the current value can be kept low, and a high heating capacity can be exhibited even with the AC 100 V specification. In the embodiment, even if the rated current value is 15 A, heating of about 3200 kcal / h is possible for about 1 hour, and thereafter, the heating capacity becomes about 1200 kcal / h, but at that time the room is already warmed and the room temperature is reduced. There is no problem in practical use because the heating capacity is sufficient to maintain. In addition, if the use is stopped for about 2 hours, the heating capacity returns to the original level.

Further, according to the present invention, since the heat is always stored during the daytime and nighttime during the stoppage of the air supply, the heat storage material can be reduced, so that the warm air blower itself becomes lightweight and compact, and can be moved between rooms. The handling at the time of use is extremely simple and practical.

In particular, it can be said that the electric hot air blower of the present invention is most efficient when used in a house with high airtightness, and exerts its utility to the maximum.

[Brief description of the drawings]

FIG. 1 is a sectional view of an electric hot air blower according to an embodiment of the present invention.

FIG. 2 is an electric circuit diagram of the electric hot air blower.

FIG. 3 is an explanatory diagram of an operation state of the electric hot air blower.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Blowing path 4 Heat storage material 5 Heat storage heater 6 Blower 8 Hot air heater 10 Operation controller

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuhisa Wada 1006 Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References Japanese Utility Model Showa 49-107153 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F24H 7/00-7/06 F24H 3/04 305

Claims (1)

(57) [Claims] An air supply path, an air supply device provided on the windward side of the air supply path, a heat storage material provided in the air supply path and storing heat by heating a heat storage heater, and a hot air provided in the air supply path Heater for operation, comprising an operation control device, the operation control device,
At the time of non-heating when the blower is stopped, the power supply to the warm air heater is cut off, and the power supply to the heat storage heater is performed. When the blower is operating, the power supply to the heat storage heater is cut off. And an electric hot air blower capable of energizing the hot air heater.