JPH0220904B2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention rapidly equalizes the temperature unevenness in the upper and lower parts of the room when switching the operation mode of an air conditioner, measures the temperature, and adjusts the temperature accordingly. The present invention relates to a switching method that determines whether to switch the operating mode accordingly.

"Prior Art" Generally, in automatic operation of an air conditioner, when switching the operating mode between cooling, dehumidifying, and heating, the switching determination is made by detecting temperature using a thermistor. When performing this temperature detection, there is a temperature difference of several degrees between the room near the ceiling and the floor, so it is necessary to eliminate temperature unevenness before measuring the temperature. Therefore, conventionally, before detecting the indoor temperature, the ventilation operation is performed for a certain period of time, and then the temperature is measured.

``Problems to be Solved by the Invention'' There were problems such as simply running the air blower operation did not result in a uniform temperature, and if you tried to make it uniform, you would have to run the air blower for a long time.

"Means for Solving the Problems" The present invention has been made to solve the above-mentioned problems, and detects the indoor temperature using a temperature sensing element, and adjusts the air conditioner according to the detected temperature. In the case where the operation mode is switched, after inputting the operation mode switching signal, the blower fan and the air outlet louver are operated for a certain period of time, and then the room temperature is measured and the operation mode is determined. This is what I did.

“Example” An example of the present invention will be described below based on the drawings.

In Fig. 2, reference numeral 1 denotes an air conditioner body attached to a wall or the like in the room. Built-in electrical control device. For example, as shown in FIG. 1, this electrical control device has the temperature sensing element 3 and a resistor 6 connected in series, one end connected to a power supply terminal (+B), the other end grounded, and the connection point is It is coupled to one input of comparator 7. The other input side of the comparator 7 is coupled with ladder resistors 8a...8n and voltage dividing resistors 9, 10 for setting a reference voltage corresponding to the operating mode. The output side of the comparator 7 and the input side of the ladder resistors 8a...8b are coupled to a microcomputer 11, and a motor 13 of the fan 4 and a motor 14 of the louver 5 are coupled to the microcomputer 11 via a drive circuit 12. .

Next, the operation mode switching method of the present invention will be explained based on the flowchart of FIG.

For example, a signal indicating whether to switch the driving mode is input every 15 minutes. When this signal is input, first, a signal for operating the fan 4 and the louver 5 is sent from the microcomputer 11 to the drive circuit 12, and the respective motors 13 and 14 are started.
Then, the air in the upper part of the room is sucked in by the fan 4 and is blown out from the outlet 15 to the lower part.
At this time, by swinging the louver 5 in the vertical direction, the air from the outlet 15 is blown out in the vertical direction, causing convection to occur throughout the room and making the room temperature uniform over a predetermined period of time. After a predetermined time has elapsed, a room temperature detection signal is sent from the mine 11 to the ladder resistors 8a...8n,
The reference voltage and the voltage detected by the temperature sensing element 3 are compared, and room temperature data is sent to the microcomputer 11. Based on this room temperature data, it is determined whether to switch the operation mode or continue the current operation. In the case of switching the operation mode, a control signal is sent from the microcomputer 11 to a compressor, heater, etc. (not shown).

Note that the louver 5 is always operated immediately before the operation mode switching determination time, but during normal operation, it is operated as set by the user.

"Effects of the Invention" Since the present invention employs the switching method as described above,
When determining whether to switch the operating mode, the fan and louver quickly equalize the temperature in the room, and the operating mode set by the user can be determined efficiently and correctly in a short time, allowing comfortable air conditioning. Become.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a control device for realizing the switching method according to the present invention, FIG. 2 is a sectional view of an air conditioner, and FIG. 3 is a flowchart. 1...Air conditioner body, 2...Heat exchanger, 3...
...temperature sensing element, 4...fan, 5...louver,
6, 8a to 8n, 9, 10...Resistor, 7...Comparator, 11...Microcomputer, 12...Drive circuit,
13...fan motor, 14 louver motor, 1
5...Air outlet.

Claims (1)

[Claims] 1 In an air conditioner that detects the indoor temperature using a thermosensor and switches the operating mode of the air conditioner in response to the detected temperature, after inputting the operating mode switching signal, the blower fan operates and blows air for a certain period of time. A method for switching an operating mode of an air conditioner, characterized in that the operating mode of an air conditioner is determined by first operating the louver at the mouth and then measuring the room temperature.