JPH0510175Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an air conditioner in which a wind direction louver installed at an air outlet of the air conditioner can be rotated by a motor.

[Conventional technology]

A conventional technique will be explained with reference to FIG. 1, which is an embodiment of the present invention. The air conditioner shown in Figure 1 is
This is a so-called multi-type unit in which two ceiling-suspended indoor units 1 and 2 are connected to one outdoor unit (not shown) via refrigerant piping, and each indoor unit 1 and 2 is connected to one remote controller 1.
1, and at the same time performs operation/stop, wind direction control, etc. The upper and lower wind direction louvers 3 and 4 are adapted to be rotated up and down by motors (not shown), and the blowing air 5 of each is set at an angle a from an upper limit 7 to a lower limit 9.
In addition, the direction of the blowing air 6 can be changed within a range of an angle a from an upper limit 8 to a lower limit 10.

[Problem that the invention attempts to solve]

In the above-mentioned conventional technology, the blowing angles of the blowing air 5 and 6 from each indoor unit 1 and 2 are set at the same initial state at the time of shipment from the factory or when each indoor unit 1 and 2 are installed. During operation, there was a problem that the rotation period of each louver drive motor (not shown) gradually deviated due to variations in the rotation period.

For this reason, conventionally, an on/off switch is provided in the power supply line of the louver drive motor of the indoor unit 2, and the on/off switch is operated while observing the movement of the vertical wind direction louver 3 of the indoor unit 1. 4 was synchronized with the movement of the vertical wind direction louver 3. This operation is a very complicated task for some users.

An object of the present invention is to solve the above-mentioned conventional problems and provide an air conditioner that can automatically synchronize the movements of each wind direction louver.

[Means for solving problems]

The air conditioner according to the present invention connects two or more indoor units to one outdoor unit, allows the wind direction louver of each indoor unit to be rotated by a motor, and also controls the operation/stopping and wind direction of each indoor unit. In a multi-type air conditioner that performs these operations synchronously, while the airflow direction louver of each indoor unit is rotating, the airflow direction louver is kept in the specified position at least while the room temperature controller is operating and the thermostat is off. It is characterized by having a means for stopping it.

[Effect]

According to the present invention, while the air conditioner is operating, normally,
The room temperature can be adjusted by stopping each of the upper and lower wind direction louvers at a predetermined position (at the same angle) and restarting them when the room temperature controller returns, in accordance with the operating timing of the room temperature controller, which always operates in a certain cycle. Under normal operation, the upper and lower wind direction louvers of each indoor unit are automatically adjusted to the same angle at a certain period, and the wind direction of each indoor unit is always oriented in substantially the same direction.

〔Example〕

FIG. 1 shows an embodiment of the present invention, showing two ceiling-suspended indoor units 1 and 2 connected to one indoor unit (not shown) by refrigerant piping. Each of the indoor units 1 and 2 has a blow-off port driven by each motor (not shown), blowing air 5 at an angle a from an upper limit 7 to a lower limit 9, and blowing air 6 at an angle a from an upper limit 8 to a lower limit 10. Upper and lower wind direction louvers 3 and 4 are provided, which can be rotated by using a common remote control 11 to adjust the wind direction or to rotate the louvers.

FIG. 2 is a detailed view of the area around the air outlet of the indoor unit 1 shown in FIG. The limit switch 12 is operated at a predetermined position (angle b).

Similarly, a limit switch provided on the indoor unit 2 is operated at the same position (angle b) by rotation of the vertical wind direction louver 4.

The operation of the embodiment of the present invention described above will be explained.

Normally, during cooling or heating operation, a room temperature controller (not shown) operates periodically to stop the cooling or heating operation and keep the room temperature constant.
Here, the limit switch of indoor unit 1 is called limit switch A, the louver drive motor is called motor A, the limit switch of indoor unit 2 is called limit switch B, and the lever drive motor is called motor B.

FIG. 3 shows the operation flow of the room temperature regulator, limit switches A and B, and motors A and B. When the louver rotation switch is turned on during operation, (1) When neither the limit switch A nor the room temperature controller is operating, the rotation motor A of the louver 3 operates, and the direction of the blowing air 5 changes, resulting in this state. If the limit switch B is not operating, the rotation motor B of the louver 4 is also operated and the direction of the blowing air 6 is also changed.

(2) Even if limit switch A or limit switch B is activated, if the room temperature controller is not activated, both motor A and motor B are operated in the same way, and each of the air blowouts 5 and 6 changes.

(3) When limit switch A and room temperature controller are activated, motor A stops and louver 3 stops at the position where limit switch A is activated.

On the other hand, if limit switch B is not operating, motor B continues to rotate, and as a result, louver 4 finally reaches a position where limit switch B is operated, motor B is stopped, and louver 4 is stopped at this position.

(4) Limit switch B operates first, and louver 4
The same applies to the case where the cursor stops first.

(5) After that, both motors A and B start operating at the same time as the room temperature controller returns.

[Effect of idea]

According to the present invention, the louver is stopped at a predetermined position, for example, at the operating position of a limit switch, in accordance with the operating timing of the room temperature controller, which operates periodically, although generally irregularly. The airflow direction is corrected and synchronized each time the room temperature controller is activated, eliminating the need for the conventional synchronization switch, which has excellent effects such as reducing user operations. be given

[Brief explanation of the drawing]

Figure 1 is an overall configuration diagram of one embodiment of the present invention, Figure 2
The figure is a detailed view of the air outlet area in Figure 1, and a detailed view of the air outlet area in Figure 3.
The figure is a flowchart for explaining the operation of an embodiment of the present invention. 1...Indoor unit, 2...Indoor unit, 3
. . . Vertical wind direction louver of indoor unit 1, 4… Vertical wind direction louver of indoor unit 2, 12… Limit switch.

Claims (1)

[Scope of utility model registration request] A multi-type unit in which two or more indoor units are connected to one outdoor unit, the wind direction louver of each indoor unit can be rotated by a motor, and the operation/stop of each indoor unit and the control of the wind direction can be performed in synchronization. The air conditioner is provided with a means for stopping the wind direction louver in a predetermined position at least while the airflow direction louver of each indoor unit is rotating and the room temperature controller is activated and the thermostat is turned off. Air conditioner with special features.