JPS6213936A - Damper control device for air conditioner - Google Patents

Abstract

PURPOSE:To mix air passing through a wind circuit with air passed through a heat exchanger, to blow the mixed air and to prevent their blowing temperature from being decreased by a method wherein a damper for opening or closing the air circuit not passed through the heat exchanger and a damper motor for driving the damper are provided within an air conditioner in addition to a suction port passing through the heat exchanger. CONSTITUTION:An inside part 10 of an air conditioner is provided with a suction port 12 constituting an air circuit passing through a heat exchanger 11 and a suction port 13 constituting an air circuit not passing through the heat exchanger 11. The air circuit passing through the suction port 13 is provided with a damper 14 and a damper motor 15 for use in driving the damper 14. In case of cooling operation and it is necessary to blow cold air, the damper 14 is closed and only the air passing through the suction port 12 is blown. In case of dehumidifying operation, the damper 14 is opened, the air passing through the suction port 12 and the air passing through the suction port 13 are mixed to each other and blown off together, with the result that a blowing temperature of the mixed air can be prevented from being decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a damper control device for an air conditioner that switches a blower circuit by opening and closing a damper.

Prior Art A conventional air conditioner has a structure as shown in FIG.

That is, when the interior of the air conditioner room 1 is operated, a flow of air is blown into the room by the fan 4 through the suction port 2 and the heat exchanger 3. When changing the amount of air blown during cooling, the taps of the indoor fan motor 5 shown in FIG. 4 are switched using relays 6, 7, and 8. Also, when creating a dehumidifying effect in cooling mode,
The compressor 9 is operated intermittently to prevent the indoor temperature from dropping during cooling.

Problems that the invention aims to solve: However, with this kind of structure, during early summer or rainy season, etc.
When performing dehumidification operation, the air outlet temperature inevitably becomes low.

Also, when performing control (hereinafter referred to as airflow control) that randomly switches the air volume and blows out an unexpected amount of cold air to provide refreshing air, the relays 6, 7, and 8 are switched, so noise is generated. becomes a problem.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides, in the interior of an air conditioner, a wind circuit that does not pass through a heat exchanger, in addition to an inlet that constitutes a wind circuit that passes through a heat exchanger. By providing a suction port, a damper that opens and closes the air circuit, and a damper motor that drives the damper, the air volume and temperature can be varied while keeping the indoor fan rotation speed constant during cooling and dehumidification. It is something.

Function The present invention has the above-described configuration, and when dehumidifying, by opening the damper of the wind circuit that does not pass through the heat exchanger, the air that has passed through the wind circuit and the air that has passed through the heat exchanger are mixed. This can prevent the blowout temperature from dropping.

Also, when performing the airflow control, the fan motor speed is kept constant, and the air volume can be varied by opening and closing the damper, which eliminates the problem of noise.

Embodiment FIG. 1 is a structural diagram showing an embodiment of the air conditioner of the present invention.

An air conditioner room interior 10 is provided with a suction port 12 forming a wind circuit passing through a heat exchanger 11, and a suction port 13 forming a wind circuit that does not damage the heat exchanger 11.

The wind circuit passing through the suction port 13 includes a damper 14 and a solenoid.

A damper motor 15 that drives the damper 14 is installed.

When it is necessary to blow out cold air during cooling, the damper 14 is closed and only the air passing through the suction port 12 is blown out.

During dehumidification, the damper 14 is opened and the suction ports 12 and 13 are opened.
If you mix the wind that passes through and blow it out, you can prevent the deterioration of the blown deerskin. Furthermore, when performing the airflow control during the rainy season or early summer, the blowing air flow can be changed by opening and closing the damper 14 at appropriate times.

FIG. 2 is a circuit diagram of this embodiment. In addition to the compressor 16 and the indoor fan motor 17, there is a damper motor 18, and when the damper motor 18's relay 19' is turned on, the first
The damper 14 shown in the figure opens and closes automatically.

Effects of the Invention As described above, the present invention is extremely useful in that it is possible to prevent a drop in the blowout temperature during dehumidification and to easily perform airflow control with extremely little noise.

[Brief explanation of the drawing]

Fig. 1 is a structural diagram of an air conditioner according to an embodiment of the present invention, Fig. 2 is a control circuit diagram of the air conditioner, Fig. 3 is a structural diagram of a conventional air conditioner, and Fig. 4 is the same. It is a control circuit diagram of an air conditioner. 10... Inside the air conditioner room, 11...
Heat exchanger, 12・1°3... Suction port, 14...
...Damper, 15...Damper motor. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure n-Peng Wen Dishware No. 21! I

Claims (1)

[Claims] Equipped with an inlet that constitutes a wind circuit that passes through a heat exchanger and an inlet that constitutes a wind circuit that does not pass through a heat exchanger, the airflow volume and temperature can be controlled while keeping the indoor fan rotation speed constant during cooling and dehumidification. A damper control device for an air conditioner, comprising a damper that opens and closes a wind circuit that does not pass through the heat exchanger for variable operation, and a damper motor that drives the damper.