JP2555996Y2 - Hot air heater - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot air heater.

[0002]

2. Description of the Related Art As a warm air heater, for example, a fan heater using kerosene as fuel is known as shown in FIG. In FIG. 1, reference numeral 1 denotes a main body, in which an electromagnetic pump 2, a vaporizer 3, a combustion unit 4 as a heat source, a blower 7, and the like are provided.

A vaporizer 3 vaporizes kerosene supplied from a fuel tank (not shown) by an electromagnetic pump 2. Air is mixed with gas vaporized by the vaporizer 3 and supplied to a burner 5 of a combustion unit 4. The fuel is burned by the burner 5 to generate heat for heating. Note that 6
Reference numeral denotes an ignition heater that performs lighting on the mixed gas discharged from the burner 5 at the start of combustion.

[0004] The combustion heat generated in the combustion section 4 heats convection air taken into the main body 1 by the blower 7 and converts it into hot air, and this hot air is blown out at the outlet formed on the front surface of the main body 1. 8 to the outside. Fixed louvers 9, 9 are provided horizontally at the outlet 8,
It regulates the direction of warm air from the outside and prevents foreign substances from entering from outside.

[0005]

[Problems to be Solved by the Invention] However, if the direction of the hot air is adjusted only by the fixed louver 9, the direction of the air cannot be changed. Therefore, when the combustion is weak and the amount of air is weak, the heat rises before reaching the floor due to the draft action. However, there was a problem that the temperature rise on the floor surface was delayed.

Therefore, according to the present invention, it is possible to determine the discharge direction of the warm air by performing louver adjustment so as to reliably heat the floor in accordance with the change in the amount of heat generated from the heat source and the variation in the amount of air blown. It is intended to provide a hot air heater that can be increased.

[0007]

According to the present invention, there is provided a main body having an outlet at a front portion, a heat source provided in the main body for generating heat for heating, and supplying air to the heat generated from the heat source. A blower for discharging hot air from the outlet, a fixed louver provided at the outlet, and a rear end of the fixed louver provided at a rear portion of the fixed louver and having a pivot point lower than the position of the fixed louver. A movable louver that pivots rearward by a predetermined angle from a position where it comes into contact with, a switching control unit that controls the amount of heat generated by the heat source and the amount of air blown by the blower, and a switching control of the amount of heat by the switching control unit. When the heat amount is weak, the movable louver is brought into contact with the rear end of the fixed louver, and when the heat amount is other than the weak heat amount, the movable louver is rotated in a direction away from the rear end of the fixed louver in accordance with an increase in generated heat amount. Setting Those were.

[0008]

In the present invention having such a configuration, the amount of air blown by the blower is small when the amount of heat is low, but since the movable louver comes into contact with the rear end of the fixed louver, the fixed louver and the movable louver are formed as one louver. It works and ensures that hot air is sent out onto the floor even if the amount of air blown is small. When the amount of generated heat is other than weak heat, the movable louver is controlled to rotate away from the rear end of the fixed louver in accordance with the increase in generated heat. That is, the gap between the fixed louver and the movable louver expands in accordance with an increase in the amount of generated heat, and a part of the warm air is sent out onto the floor via the gap. Thus, heating on the floor surface is ensured even with a heat amount other than the weak heat amount.

[0009]

1 to 7 show an embodiment of the present invention.
1 is a schematic vertical sectional view of a kerosene-type fan heater. In FIG. 1, 1 is a main body, 2 is an electromagnetic pump, 3 is a carburetor, 4 is a combustion unit, 5 is a burner, 6 is an ignition heater, 7 is a blower, 8 is an outlet, and these are those shown in FIG. Is the same as

A fixed louver 1 is provided inside the outlet 8.
1, 11 are provided, and at the rear of the fixed louver 11,
The movable louvers 12, 12 are provided such that the rotation fulcrums 12a, 12a are lower than the position where the fixed louver 11 is installed.

As shown in FIG. 2, the movable louver 12 is rotated by a predetermined angle rearward from a position where the movable louver 12 comes into contact with the rear end of the fixed louver 11. The movable louver 12 adjusts the direction of warm air emitted from the outlet 8.

The movable louver 12 is rotated by a louver drive mechanism 13 as shown in FIG.
The louver drive mechanism 13 includes a motor 14 and the motor 1
And transmission members 15a and 15b for transmitting the rotation of the rotary shaft 16 to the louver drive shafts 12a and 12a.
The transmission members 15a and 15b move up and down when the motor 14 rotates. When the transmission members 15a, 15b move upward, the louver drive shafts 12a,
12a rotates, for example, counterclockwise, and the transmission members 15a,
When the 15b moves down, the louver drive shafts 12a, 12a rotate clockwise.

Two cam plates 17a and 17b are attached to the rotating shaft 16 of the motor 14, and each of the cam plates 17a and 17b is
The actuators 19a and 19b of the angle detection switches 18a and 18b for detecting the angle of the movable louver 12 are energized by the rotation of the a and 17b. An indoor temperature detecting thermistor 20 for detecting the indoor temperature is attached to the back of the main body 16.

FIG. 4 is a block diagram showing a main circuit configuration.
Reference numeral 21 denotes a control unit provided with a microcomputer inside. The control unit 21 includes the electromagnetic pump 2, the ignition heater 6, the blower 7, the louver drive motor 14, the louver angle detection switches 18a and 18b, the room temperature detection thermistor 20, and a carburetor heater for heating the carburetor 3. 22, a combustion switch 23 for starting a combustion operation, a temperature setting switch 24 for setting a room temperature, a thermistor 25 for detecting a temperature of the carburetor 3 for detecting a temperature of the carburetor 3, and a combustion section through which air blown by the blower 7 passes. Thermistors 26 for detecting a combustion temperature for detecting the temperature above 4 are respectively connected.

The control section 21 is set to perform the combustion control shown in FIG. That is, when the combustion switch 23 is turned on, the power supply to the carburetor heater 22 is started,
The temperature of the vaporizer 3 is measured by the thermistor 25 for detecting the vaporizer temperature.
To detect. When the temperature of the vaporizer 3 rises to a predetermined temperature, the electromagnetic pump 2 is operated and the ignition heater 6 is operated.

Thus, kerosene is vaporized by the electromagnetic pump 2 into the vaporizer 3.
The vaporized gas is mixed with air, and the mixed gas is sent to the burner 5 of the combustion unit 4. Then, the ignition is performed by the ignition heater 6 in the burner 5, and the combustion is started.

When the combustion operation is started, the temperature above the combustion portion is detected by the thermistor 26 for detecting the combustion temperature.
When the temperature rises to a temperature at which the air sent by the blower 7 can be sufficiently converted into warm air, the blower 7 is operated. Thus, the warm air is released from the outlet 8, and the indoor heating is started.

During heating, room temperature control is performed. In this room temperature control, the combustion state is determined based on the relationship between the set temperature set by the temperature setting switch 24 and the room temperature detected by the room temperature detecting thermistor 20 in the weak combustion / low air flow mode, the medium combustion / medium air flow mode, and the strong combustion.・ 3 of strong wind volume mode
The mode can be selectively switched between the two modes. (Switch control means)

In accordance with this mode, the louver drive motor 14 is driven to rotate while checking the angle detection signals from the angle detection switches 18a and 18b. As shown in FIG. 2 (a), the movable louver 12 is controlled to a position where it comes into contact with the rear end of the fixed louver 11, and in the medium combustion / medium air volume mode, the movable louver 12 is moved as shown in FIG.
The movable louver 12 is moved from the contact position with the fixed louver 11 as shown in FIG. The position is controlled to be further rotated by an angle θ2 in the direction away from the camera. (Rotation control means)

During the combustion operation, the combustion switch 24
Is performed, the electromagnetic pump 2 is stopped, and further, the blower 7 is stopped as the temperature detected by the combustion temperature detecting thermistor 26 decreases.

In the embodiment having such a configuration, when the combustion operation is performed in the low-combustion / low-airflow mode, the movable louver 12 is controlled to a position where it comes into contact with the rear end of the fixed louver 11. Therefore, the fixed louver 11 and the movable louver 12 are integrated and function as one louver. Therefore, even if the warm air sent from the outlet 8 is a weak wind, the louver effectively adjusts the wind direction so as to be directed to the floor, so that the floor can be heated reliably.

When the combustion operation is performed in the medium combustion / medium air volume mode, the movable louver 12 is controlled to a position rotated by θ1 from the contact position with the fixed louver 11. As a result, the distance between the fixed louver 11 and the movable louver 12 is t1.
Gaps occur. Therefore, part of the warm air becomes downward wind through the gap, and the floor surface can be reliably heated.

Further, when the combustion operation is performed in the strong combustion / strong air flow mode, the movable louver 12 is controlled to a position rotated by a larger θ2 angle from the contact position with the fixed louver 11. Thus, the fixed louver 11 and the movable louver 12
And a larger gap of t2 is generated. As a result, part of the warm air becomes downward wind through the gap, so that the floor surface can be reliably heated. At this time, since the movable louver 12 rotates more than in the medium combustion / medium air volume mode, there is almost no resistance in the gap even if the air volume is strong, and the warm air is discharged downward without resistance.

[0024]

[Effects of the Invention] As described above, the present invention determines the direction of hot air release by performing louver adjustment so that the floor surface can be reliably heated according to the change in the amount of heat generated by the heat source and the variation in the amount of air blown. Can increase the heating effect.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view showing an embodiment of the present invention.

FIG. 2 is a view showing the movement of a movable louver in the embodiment.

FIG. 3 is a perspective view showing a louver drive mechanism for driving the movable louver of the embodiment.

FIG. 4 is a main part control block diagram of the embodiment.

FIG. 5 is a flowchart showing combustion control by a control unit of the embodiment.

FIG. 6 is a schematic longitudinal sectional view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Body, 2 ... Electromagnetic pump, 3 ... Vaporizer, 4 ... Combustion part,
7 ... blower, 8 ... outlet, 11 ... fixed louver, 12 ...
Movable louver, 14: louver drive motor, 21: control unit.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoshinori Konishi 2570-1, Gosuda, Oaza, Kamo, Niigata Pref. Toshiba Home Techno Co., Ltd. (72) Shuichi Miura 2570-1, Gosuda, Oaza, Kamo, Niigata Toshiba In Home Techno Co., Ltd. (56) References: Japanese Utility Model 1986-181265 (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A main body having an outlet at a front portion, a heat source provided in the main body for generating heat for heating, and supplying air to the heat generated from the heat source to generate hot air from the outlet. A blower to be discharged, a fixed louver provided at the outlet, and a position provided at a rear portion of the fixed louver, wherein a rotation fulcrum is positioned lower than the position of the fixed louver, and a position in contact with a rear end of the fixed louver. A movable louver that rotates backward by a predetermined angle from, a switching control unit that controls the amount of heat generated by the heat source and the amount of air blown by the blower, and a weak amount in response to the switching control of the amount of heat by the switching control unit. When the amount of heat is greater, the movable louver is brought into contact with the rear end of the fixed louver. When the amount of generated heat is other than weak heat, the movable louver is controlled to rotate away from the rear end of the fixed louver in accordance with an increase in generated heat. A hot-air heater comprising: a dynamic control unit.