JPH094907A - Air conditioner - Google Patents

Abstract

(57) Abstract: An air conditioner and an air conditioner capable of detecting an indoor unit in which an abnormality has occurred in a wind direction drive mechanism or an operation in which a wind direction is determined to be abnormal among a plurality of indoor units. SOLUTION: In an air conditioner including an airflow direction mechanism 2b that determines the airflow direction and an indoor unit 2 that has an airflow direction drive mechanism 2a that drives the airflow direction mechanism, a calculation unit 2e that counts the time required for one cycle of the airflow direction mechanism. The abnormality of the wind direction drive mechanism is detected by comparing the time required for one cycle with one cycle time of a predetermined normal wind direction mechanism.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner and an air conditioner, and is particularly suitable for an air conditioner having a control device for holding a wind direction at a predetermined position.

[0002]

2. Description of the Related Art In conventional air conditioners, the
As described in JP-A-75753, the wind direction is changed in conjunction with the operation of the solenoid. However, this method requires a plurality of solenoids when switching the wind direction in several steps, which is expensive. In addition, when switching the wind direction, there is a problem that it cannot be switched without looking at the direction of the outlet grill.

[0003]

In the above-mentioned prior art, since the stop position is operated while looking at the direction of the blowout grill, if the installation position of the remote control switch and the installation position of the air conditioner are separated, Position adjustment is difficult. In addition, it is difficult to adjust the position with an air conditioner with a structure where the outlet grill cannot be seen, and in an air conditioning system in which multiple air conditioners are connected to one remote control switch,
There were problems such as not being able to make the air direction of all air conditioners the same.

An object of the present invention is to provide an air conditioner and an air conditioner capable of detecting an indoor unit having an abnormal wind direction drive mechanism or an abnormal operation of determining the wind direction among a plurality of indoor units. To provide.

[0005]

In order to achieve the above object, the present invention provides an air conditioner comprising an airflow direction mechanism for determining the airflow direction and an indoor unit having an airflow direction drive mechanism for driving the airflow direction mechanism, The wind direction drive mechanism is provided with a calculation unit that counts the time required for one cycle of the wind direction mechanism, and compares the time required for the one cycle with one cycle time of the wind direction mechanism in a predetermined normal case. It detects an abnormality.

This makes it possible to detect an abnormality in the operation of changing the wind direction by comparing the actual value of one cycle time of the wind direction mechanism with the normal value.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram of the air conditioner. The remote control switch 1 includes a wind direction adjustment switch 1a, a wind direction display 1b, and a transmission circuit 1c.
The indoor unit 2 includes a wind direction drive mechanism 2a, a wind direction mechanism 2b, a wind direction position detection mechanism 2c, and a calculation unit 2e. FIG. 2 is a detailed view of the wind direction mechanism 2b and the wind direction position detection mechanism 2c. The wind direction detection mechanism 2c detects when the wind direction is horizontal. FIG.
Is a detailed view of the wind direction mechanism 2b and the wind direction drive mechanism 2a, both of which are connected by connecting bars 3 and 4. Then, the rotational drive of the wind direction drive mechanism 2a is converted by the connecting bars 3 and 4 into a swing drive in which the wind direction mechanism 2b swings downward from horizontal to 80 °. FIG. 4 shows a wind direction display method when the remote control switch 1a is pressed. The wind direction is displayed by turning on the fan-shaped 5 to 8 wind direction display portions shown in FIG. The display from horizontal to 80 ° corresponds to A to G in the figure, and when the remote control switch 1a is pressed, the wind direction display changes from A to G in FIG. 4 and then changes stepwise from G to A. . Thereafter, this operation is repeated. The display indicates that the wind direction automatic operation mode has been set. At this time, remote control 1
Sends the wind direction automatic operation data to the indoor unit 2 via the transmission circuit 1c. The indoor unit 2 operates the wind direction drive mechanism 2a according to the wind direction automatic operation data sent from the remote controller 1, and reciprocates the wind direction mechanism 2b from the horizontal position to 80 ° downward. The wind direction position detection mechanism 2c sends a horizontal signal to the calculation unit 2e when the wind direction mechanism 2b becomes horizontal, and the calculation unit 2e counts the time from the reception of the horizontal signal until the reception of the next horizontal signal, Calculate the time required for one cycle of the mechanism. When the wind direction mechanism is not automatically moved, the initial data set in advance is set as one cycle time.

In order to maintain the wind direction in a certain direction, when the wind direction display 1b of the remote controller 1 has reached the desired wind direction display position among A to G in FIG. 4, the wind direction adjustment switch 1a is pressed to stop the display. . When the wind direction adjustment switch 1a is pressed, the wind direction display data at this time is sent to the indoor unit 2 via the transmission circuit 1c. The calculation unit 2e calculates the drive time from the wind direction position data and the time required by the wind direction mechanism for one cycle, and moves the wind direction drive mechanism 2a for a predetermined time to move the wind direction mechanism 2
Hold b in a predetermined wind direction. The wind direction position data can be set in a plurality of stages corresponding to the displays A to G of the wind direction display 1b.

In this method, since the wind direction display portions 5 to 8 displayed on the remote controller 1 and the wind direction mechanism 2b of the indoor unit 2 do not always need to be synchronously operated, as shown in FIG.
Even when the remote controller 1 has a system configuration in which a plurality of indoor units are connected, if the wind direction is set by the remote controller 1, even if the wind direction mechanism of the connected indoor units is not synchronized, the same wind direction is obtained. Easy to do.

Since the calculation unit 2e counts one cycle time of the wind direction mechanism 2b, it calculates one cycle time of the wind direction mechanism in a normal case and compares it with the time required for one actual cycle. An abnormality of the wind direction drive mechanism 2a or the wind direction position detection mechanism 2c can be detected.

[0011]

According to the present invention, an abnormality in the wind direction drive mechanism,
Alternatively, it is possible to obtain an air conditioner that can detect an indoor unit in which the operation of determining the wind direction is abnormal among a plurality of indoor units.

[Brief description of drawings]

FIG. 1 is a block configuration diagram of an air conditioner showing an embodiment of the present invention.

FIG. 2 is a detailed view of a wind direction mechanism and a wind direction position detection mechanism.

FIG. 3 is a detailed view of a wind direction mechanism and a wind direction drive mechanism.

FIG. 4 is a detailed diagram of a wind direction display method.

FIG. 5 is a configuration diagram of a system (air conditioner) of an air conditioner showing an embodiment of the present invention.

[Explanation of symbols]

1 ... Remote control switch, 1a ... Wind direction adjustment switch, 1b
... wind direction display, 1c ... transmission circuit, 2 ... indoor unit, 2a ... wind direction driving mechanism, 2b ... wind direction mechanism, 2c ... wind direction position detecting mechanism,
2e: calculation section, 5-8: wind direction display section.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshimasa Koyama 390 Muramatsu, Shimizu City, Shizuoka Prefecture Hitachi Ltd. Shimizu Plant

Claims (1)

[Claims] 1. An air conditioner including an airflow direction mechanism that determines the airflow direction and an indoor unit that has an airflow direction drive mechanism that drives the airflow direction mechanism, including an arithmetic unit that counts the time required for one cycle of the airflow direction mechanism. An air conditioner that detects an abnormality in the wind direction drive mechanism by comparing the time required for the one cycle with a predetermined cycle time of the wind direction mechanism in a normal case.