JPS61213544A - Controlling device for air blowing at air conditioner - Google Patents

Abstract

PURPOSE:To enable to keep securely air amount flowing into a heat exchanger by installing a motor for a fan capable of rotating reversely and a wind direction detector to control operation of the motor for the fan following wind direction at the outside of an air conditioner room. CONSTITUTION:A wind direction detector 7 is installed as an outside device of an air conditioner room. By a fan 2, air flows in normal direction C and at that time, when natural wind flows in direction A, the motor for the fan is judged to be in the range of reverse rotation and air flowing direction is made same as natural wind direction after a reverse rotation switch S for the motor FM of the fan is converted from a contact F to a contact R. When natural wind direction is B or D direction, the fan still rotates as before. Also, the output of the motor may be reduced corresponding to reduced amount of natural wind.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to the operation control of an outdoor ventilation motor of a separate air conditioner.

2. Description of the Related Art Conventionally, this type of air conditioner was manufactured by, for example, the Japanese Utility Model Publication No. 51-301
As shown in Publication No. 04, it had a structure as shown in FIG.

That is, in FIG. 5, the main body 5 includes a blower electric motor 1, a blower fan 2, a heat exchanger 3, and an air guide 4a1.
An air gear 4b and a compressor 6 were respectively arranged.

By operating the blower electric motor 1, the blower 7-an 2 rotates, and air flows from the heat exchanger a side toward the blower 7-an 2, so that a predetermined air conditioning operation can be performed. . In addition, the operation is performed by switching according to Fig. 6.

Problems to be Solved by the Invention However, with such a configuration, if there is natural wind in the opposite direction to the air flow by the blower 7A, the amount of air flowing through the heat exchanger a decreases. However, there was a drawback that a specified air conditioning operation could not be performed. Furthermore, there is a serious drawback that the compressor 6 and the blower motor 1 are operated under overload, which shortens their lifespan.

Therefore, an object of the present invention is to enable sufficient air conditioning operation under any natural wind, and to extend the life of the air conditioner by preventing overload operation.

Means to Solve the Problems And the technical means of the present invention to solve the above problems is to use a reversible blower motor of the air conditioner, and further provide a wind direction detection device in the main body. The direction of rotation of the blower is controlled depending on the situation.

For production The effect of this technical means is as follows.

That is, the flow direction of the natural wind is detected and the rotational direction of the blower electric motor is changed as necessary so that the flow of air by the blower 7-an 2 is the same as the direction of the natural wind. Therefore, the amount of air flowing through the heat exchanger does not decrease, and sufficient air conditioning operation can be performed at all times.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 4 of the accompanying drawings.

In FIG. 1, the wind direction detection device is installed at a location where it can detect all natural wind directions of the 7-piece outdoor unit.

In addition, the direction of the natural wind opposite to the direction of the wind by the ventilation fan 2 is A1, the forward direction is 01, and the natural wind from both sides is B, respectively.
Let it be D.

FIG. 2 is an electrical circuit diagram of this embodiment, where FM is the fan motor, CM is the compressor motor, SR is the reverse switch for the fan motor FM, and SP is the output selector switch for the fan motor FM. 0 When the fan motor FM is operated with the reverse switch SR in the F position, air flows in the direction C shown in FIG. A fan electric motor FM is disposed such that when the output changeover switch Sp is in the H position, the output is high (high rotation), and when the output changeover switch Sp is in the O position, the output is low (low rotation).

FIG. 3 is a diagram showing the direction of natural wind and the operating status of the fan motor FM. A-D indicates the direction of the wind, and the directions of A and C are the center, and the fan motor FM is reversed @ region, and the directions of B and D are the continuation region.

FIG. 4 is a flowchart showing the operation of the present invention.

In the above configuration, first, the above-mentioned C
Air flow is occurring in the direction of. Here, the above A
Assuming that the natural wind flows in the direction of , the wind direction is detected by the wind direction detection device, and it is determined that the fan motor FM is in the reverse @ region. Furthermore, since the air flow caused by the fan 2 and the air flow caused by the natural wind are in opposite directions, the reversing switch Stt of the fan motor FM is switched from F to R to change the air flow caused by the fan 2 to the natural air flow. and in the same direction. In addition, when the direction of the natural wind changes to direction B or C, the air generated by 7 AN 2 is not obstructed by the natural wind, and in order to prevent an increase in input during reverse rotation, the rotation of the fan motor FM continues as it is. Just keep it going.

Further, when the air flow caused by the fan 2 and the natural air flow are the same, the operation of the motor FM for the 71 engine may be continued as it is.

That is, when the direction of the wind is in the incoming direction and the direction C, the direction of the wind from the 7-ang 2 is compared, and if they are not the same, the direction of rotation of the fan electric motor 1 can be switched.

Effects of the Invention As is clear from the above explanation, the present invention provides a reversible fan motor and a wind direction detection device on the outdoor side of an air conditioner, and controls the operation of the fan motor according to the wind direction. The fan motor can be operated under appropriate conditions, and a sufficient amount of air can always be obtained to flow through the heat exchanger. Therefore, predetermined air conditioning operation can be performed without any trouble. Furthermore, the configuration of the conventional air conditioner main body can be used as is with a simple configuration, and the configuration can be made at low cost. Furthermore, by detecting not only the wind direction but also the air volume, the output of the fan motor can be reduced by the amount of natural wind, making it possible to realize a more novel air conditioner.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an air conditioner (outdoor unit) in an embodiment of the present invention, Fig. 2 is a wiring diagram of the air conditioner, and Fig. 3 shows the control operation area depending on the wind direction in the air conditioner. An explanatory diagram, FIG. 4 is a flowchart of control in the air conditioner, FIG. 5 is a configuration diagram showing a conventional air conditioner, and FIG.
The figure is a wiring diagram of the air conditioner. CM...Compressor motor, FM...Fan motor, SR...Reverse switch, 7...
...-Wind direction detection device. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
Diagram SR... Mystery, Susu... 4 sho SP ・ Output + jJ Nekoji switch Diagram 3 A-D... Gradient of nature's five, Diagram 4, Diagram 5! Figure 6

Claims (1)

[Claims] The outdoor unit of the separate air conditioner includes a reversible fan motor, a wind direction detection device that detects the direction of wind blowing on the outdoor unit, and a rotation direction of the fan motor that is switched in accordance with the detected direction of the wind direction detection device. An air conditioner blow control device equipped with a reverse switch.