JP2501087B2 - 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 having an improved heat collecting property.

[0002]

2. Description of the Related Art Conventionally, a hot air heater of this kind has been improved in heat collecting performance by performing strong operation for a fixed time (for example, 3 minutes) at the time of ignition regardless of room temperature, or by changing a wind direction plate or an air volume. It was

[0003]

However, with this operation control, when the temperature in the middle of winter is low, the room temperature does not rise even during heavy operation (for example, 3,200 Kcal / h), and the floor or wall of the room, While the temperature of the load such as windows does not rise, only the temperature near the heater rises and the heating output is strong (3,200 Kcal / h) to medium (2,500 Kcal / h) and weak (1,800 Kcal / h). ), A slight change (1,100 Kcal / h) causes discomfort and impairs the heating effect.

[0004]

The present invention has been made in order to solve the above-mentioned problems, and is only once at the beginning of heating operation, and the room temperature detected by the temperature detecting thermistor is constant. If the temperature of the heating element exceeds the maximum output during steady state for a certain period of time after the ignition or until the temperature detection thermistor detects a value above the certain room temperature within a certain period of time after ignition. After the operation control with the maximum output, the operation control with the special maximum output is completed, the heating element is operated with the maximum output in the steady state, and after the temperature detection thermistor detects the desired temperature, the heating element is set to the predetermined value. A warm air heater is configured with a microcomputer that controls the operation by heating output.

[0005]

With this configuration, when the room temperature detected by the temperature detecting thermistor is equal to or lower than a predetermined constant value, for example, when the room temperature in the room is low in the middle of winter, the temperature at the beginning of the heating operation is reduced. The operation of the heating element is controlled at a special maximum output that is larger than the maximum output during steady state (e.g., steady state of the heating element) only until the temperature detection thermistor detects a value above a certain room temperature. If the maximum output is 3,200 Kcal / h, it will increase by 20% to 3,840 Kcal / h, such as high output that is not suitable for unlimited continuous operation in relation to the life of the heating element), After the operation control by the special maximum output is completed, the heating element is operation-controlled with the maximum output in the steady state, and after the temperature detection thermistor detects the desired temperature, the heating element is operation-controlled with a predetermined heating output.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows a flow chart incorporated in the microcomputer 2. When the room temperature in the room at the beginning of the operation detected by the temperature detection thermistor 1 is a certain room temperature (for example, 10 ° C.) or higher, the heating element 3 is normally heated. The operation by the capacity (for example, strong operation 3,200 Kcal / h) is performed, and the microcomputer 2 increases the heating capacity of the heating element 3 according to the room temperature of the room detected by the temperature detecting thermistor 1 (3,200 Kcal / h), medium ( 2,500Kc
Al / h), weak (1,800 Kcal / h), and OFF are automatically controlled.

On the other hand, when the temperature detected by the temperature detecting thermistor 1 is below a certain room temperature (for example, 10 ° C.), the maximum output of the heating element 3 in the steady state (for a certain time (for example, 15 minutes) after ignition) ( About 2,200 Kcal / h)
Special maximum output within 0% increase (eg 3,840 Kcal / h)
Then, the microcomputer 2 operates with the normal heating output of the heating element 3 in accordance with the room temperature detected by the temperature detection thermistor 1 when the room temperature or higher is detected after that or within the fixed time.

[0009]

As described above, according to the present invention, even when the room temperature in the room in the middle of winter is low, the room can be operated with the special heating output only for a certain period of time, so that the difference between the room temperature near the heater and the room temperature is significantly reduced. There is an advantage that the warmth is greatly improved by eliminating the pleasant feeling.

[Brief description of drawings]

FIG. 1 shows a flow chart incorporated in a microcomputer of a hot air heater according to an embodiment of the present invention.

FIG. 2 is a schematic configuration diagram of a warm air heater according to an embodiment of the present invention.

[Explanation of symbols]

 1 Temperature detection thermistor 2 Microcomputer 3 Heating element

Claims (1)

(57) [Claims] 1. A temperature detecting thermistor and a microcomputer are provided, the room temperature is detected by the temperature detecting thermistor, and the heating output of the heating element is automatically controlled by the command of the microcomputer so that the room temperature reaches a set desired temperature. In the warm air heater, only once at the beginning of the heating operation, and only when the room temperature detected by the temperature detecting thermistor (1) is less than a certain value, a fixed time from ignition or The heating element (3) is operated and controlled with a special maximum output larger than the maximum output in the steady state until the temperature detection thermistor (1) detects a room temperature equal to or higher than the constant room temperature within the fixed time. After the operation control by the special maximum output is completed, the heating element (3) is controlled by the maximum output in the steady state, and the temperature detection thermistor (1) is operated by the desired temperature. After detecting the, the heating element (3)
A warm-air heater characterized by comprising a microcomputer (2) for controlling the operation of the above with a predetermined heating output.