JPS6256732A - Air-conditioning machine - Google Patents

Abstract

PURPOSE:To provide an air-conditioning machine permitting the optimum circula tion suitable for body feeling by providing a control means to operate an indoor fan intermittently with a predetermined period during operating a circulator. CONSTITUTION:When a circulator switch is put ON, a micro-computer 12 operates a relay 13 intermittently with a predetermined period based on the operation of an internal timer and an indoor fan motor 14 is operated to operate an indoor fan. The micro-computer 12 operates the indoor fan during a time (t1) at every time (t2) in such manner. Indoor air can be agitated efficiently without providing a person in the room with cold feeling by the intermittent operation of the indoor fan in such way. Further, the fluctuation of indoor temperature distribution can be restricted within a small range to improve the comfortable property of air conditioning. On the other hand, when the detecting temperature of a suction air temperature sensor 15 becomes lower than the set value of a temperature setter 16, the indoor fan is stopped and the intermittent operation thereof may be intercepted.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to an air conditioner equipped with a circulator operation function for stirring indoor air by operating an indoor fan.

[Technical background of the invention]

Generally, an air conditioner has an air inlet 2 and an air outlet 3 formed on the front surface of an indoor unit 1, as shown in FIG. Cooling operation and heating operation are performed by sucking indoor air and blowing it out indoors through an air outlet 3 through an indoor heat exchanger. Further, a suction air temperature sensor 4 is attached to the air suction port 2, and the operation is controlled according to the temperature detected by the suction air temperature sensor 4.

By the way, in addition to cooling and heating operations, such air conditioners also operate a circulator, which stirs indoor air by operating only an indoor fan, and moves warm air that has accumulated near the ceiling of the room to the lower part of the room. Some have functions.

This circulator operation can be performed by continuously operating the indoor fan as shown in Fig. 6, or by turning on the indoor fan when the suction air temperature Ta is higher than the set value Ts as shown in Fig. 7, and increasing the indoor temperature. Some devices turn off the indoor fan if Ta is lower than the set value TS.

[Problems with background technology]

However, indoor fans that operate continuously are fine when the area near the ceiling is sufficiently warm, but as the stirring effect progresses, people in the room may eventually feel chilly.

Furthermore, in a system that turns the indoor fan on and off by comparing the intake air temperature Ta and the set value Ts, the indoor temperature distribution differs greatly between when the fan is turned on and when it is turned off, causing discomfort to the people in the room. .

[Purpose of the invention]

This invention was made in view of the above circumstances,
The purpose of this is to create air conditioning that does not make the people in the room feel chilly, suppresses fluctuations in the indoor temperature distribution, and enables optimal circulation that matches the physical sensation of the people in the room. The aim is to provide the opportunity.

[Summary of the invention]

The present invention is an air conditioner equipped with a circulator operation function that stirs indoor air by operating an indoor fan, and is provided with a control means that causes the indoor fan to operate intermittently at a predetermined cycle when the circulator is operating.

[Embodiments of the invention]

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

First, the appearance is the same as that shown in FIG.

As shown in FIG. 1, a microcomputer 12 serving as a main control section is connected to a commercial AC power supply 10 via a power supply circuit 11. In addition, the relay 1 is connected to the power supply 10.
The indoor fan motor 14 is connected via 3. and,
Connect relay 13 to microcomputer 12. On the other hand, the suction air temperature sensor 4 and the temperature setting device 15 are connected to the comparison circuit 1G, and the comparison circuit 16 is connected to the microcomputer 12.

Next, the operation of the above configuration will be explained with reference to FIG.

When the user turns on the circulator switch of a driving operation section (not shown), the microcomputer 12 intermittently operates the relay 13 at a predetermined cycle based on the operation of an internal timer. When the relay 13 operates, the indoor fan motor 14 operates, and the indoor fan turns on. In this way, the microcomputer 12 turns on the indoor fan for t1 hours every t2 hours.

When the indoor fan is turned on, indoor air flows into air intake port 2.
The air is sucked into the indoor unit 1 from the air outlet 3, and the sucked air is blown into the room from the air outlet 3 to stir the indoor air.

Thereafter, when the user turns off the circulator switch of the operation section, or when a preset time has elapsed, the microcomputer 12 stops driving the relay 13. In other words, the circulator operation is stopped.

In this way, by intermittently turning on the indoor fan at a predetermined cycle, indoor air can be efficiently stirred without making the people in the room feel chilly. Moreover, fluctuations in indoor temperature distribution can be suppressed to a small level, and comfort can be improved.

In the above embodiment, the indoor fan is operated intermittently, but when the temperature Ta detected by the suction air temperature sensor 4 becomes lower than the set value Ts of the temperature setting device 15, the indoor fan is turned off. , the intermittent operation may be interrupted. In this case, although the indoor fan is completely turned off, the operation is intermittent at other times, so fluctuations in the indoor temperature distribution are small and sufficient comfort can be ensured.

Further, as shown in FIG. 3, if the detected temperature Ta of the suction air temperature sensor 4 is higher than the setting fa T S 2, the operation on time t3. If the detected temperature Ta is lower than the set value TS2 and higher than the set value TSt, the operation rate is increased by performing intermittent operation during the operation-on time ts and the operation-off time t6. (lower than the detected temperature T a tJ<setting fil T S t), the intermittent operation may be interrupted. That is,
The operation rate of intermittent operation is changed according to changes in intake air temperature.

Furthermore, the speed of the indoor fan motor 14 is made adjustable so that the detected temperature Ta is set at the set value Ts, as shown in FIG.
When the temperature is higher than Ta, the indoor fan is operated alternately between high operation (17 hours) and low operation (Ta poetry), and the detected temperature Ta
When Ts is lower than the set value Ts, the operation of the indoor fan may be turned off. In this case, a differential of 1° C., for example, may be provided in the setting flITs to provide a difference between the set value for the detected temperature Ta when falling and the set value for the detected temperature 7'a when rising. This can prevent chattering due to minute fluctuations in the detected temperature Ta. In addition, in this case, the setting value is TS
I, TS2 (TSt < Ts2), and when Ta≧TS2, the operation is continuously turned on, and TS2 > T
When a≧TS1, alternate operation of ``strong power'' and ``weak'' °, T
When SI>Ta, the operation may be turned off.

[Effects of the Invention] As described above, according to the present invention, when the circulator is operating, the indoor fan is operated intermittently at a predetermined cycle, so that the people in the room are not made to feel chilly, and the indoor temperature is maintained. It is possible to provide an air conditioner that can suppress distribution fluctuations to a small level and provide optimal circulation that matches the bodily sensation of people in the room.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of a control circuit in one embodiment of the present invention, FIG. 2 is a time chart for explaining the operation of the same embodiment, and FIGS. 3 and 4 are diagrams showing other embodiments of the present invention. A time chart for explaining the operation of the embodiment, FIG. 5 is a perspective view showing the appearance of each embodiment of the present invention and a conventional air conditioner, and FIGS. 6 and 7 are diagrams of the conventional air conditioner, respectively. It is a time chart for explaining the operation of the circulator operation. 1... Indoor unit, 2... Air intake port, 3...
Air outlet, 4... Suction air temperature sensor, 14...
Indoor fan motor, 12... microcomputer (
main control unit). Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] An air conditioner equipped with a circulator operation function for stirring indoor air by operating an indoor fan, characterized in that the air conditioner is provided with a control means for causing the indoor fan to operate intermittently at a predetermined cycle when the circulator is operating. .