JPH06249458A - Air conditioner - Google Patents

Abstract

PURPOSE:To enable an amount of blowing air to be efficiently increased in an air conditioner having a double-axis type fan motor in which an indoor device and an outdoor device are integrally assembled to each other. CONSTITUTION:An axial line of a double-axis type fan motor 3 is inclined by about 3 deg. to 30 deg. from a longitudinal line of a main body 1 of an air conditioner and this is constructed such that air blown from a sirocco fan 4 is deflected in an oblique angle and blown in a less resistance.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner integrated with an indoor unit and an outdoor unit.

[0002]

2. Description of the Related Art Referring to FIG. 3, the structure of a ventilation circuit of a conventional air conditioner in which an indoor unit and an outdoor unit are integrated using a sirocco fan and a propeller fan will be described. FIG. 3A is a plan view of the structure, and FIG. 3B is a front view of the structure. As shown in the figure, the inside of the air conditioner main body 1 is divided into two parts by a partition plate 11, and the compressor 2 and the fan motor mount 10 are provided in one of the chambers on the outside of the room. A double-axis fan motor 3 is attached to the fan motor mount 10, an outdoor fan (propeller fan) 7 is attached to one of the shafts, and the other shaft is guided to a room on the indoor side so that the indoor fan (sirocco A fan) 4 is attached. The outdoor fan 7 corresponds to the outdoor heat exchanger 8, and the indoor fan 4 corresponds to the indoor heat exchanger 5. In the figure, 6 is an indoor fan casing, 9 is an outdoor fan casing, and 12 is a power supply operation unit provided directly below the air outlet. The axial angle of the biaxial fan motor 3 is parallel to the front-back direction of the air conditioner body 1.

In the above structure, as shown by the arrow, the flow of air on the indoor side is blown from the sirocco fan 4 through the indoor heat exchanger 5 and then changes its direction at right angles along the indoor fan casing 6. The outdoor wind is discharged from the propeller fan 7 through the outdoor heat exchanger 8. In this way, the heat exchange action in the refrigeration cycle is performed and the required air conditioning is achieved.

[0004]

However, in the above-mentioned structure, since the ventilation circuit on the indoor side is bent at a right angle on the blowing side, the air volume in the room is decreased and the noise is increased, and the air volume is decreased. Will reduce the performance of the air conditioner. In addition, the operation part 12 containing the electrical components is located directly below the outlet, and there is a problem that the operation part 12 is cooled during operation and causes insulation failure.

The present invention solves the above-mentioned problems of the conventional example, and provides an air conditioner having the same size as a conventional air conditioner, low noise, high performance, and excellent safety. It is intended.

[0006]

In order to solve the above-mentioned problems, the present invention relates to an air conditioner in which an indoor unit and an outdoor unit are integrated, in which the axial angle of a biaxial fan motor is set to the longitudinal line of the main body. On the other hand, the ventilation circuit of at least the indoor sirocco fan provided on the shaft of the fan motor is bent at an obtuse angle in the range of 3 to 30 degrees and in the horizontal plane.

[0007]

According to the present invention, the axial angle of the fan motor is not parallel to the longitudinal line of the main body of the air conditioner and is tilted by 3 to 30 degrees, so that the air blown out from the indoor sirocco fan is blown by the fan casing. It is possible to avoid lowering of the air volume and increase of noise as compared with the conventional case where it is bent at an obtuse angle and is bent at a right angle, and it is possible to design a high performance air conditioner.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An air conditioner according to an embodiment of the present invention will be described below with reference to FIGS. 1 (a) and 1 (b). Figure 3
The same numbers are given to the same components as in (a) and FIG. 3 (b), and the description thereof is omitted. The configuration of the present embodiment is characterized in that the axis of the double-shaft fan motor is not parallel to the longitudinal line of the air conditioner body 1 within a range of 3 to 30 degrees and is tilted in the horizontal plane. The ventilation path corresponding to the outlet side of the indoor fan 4 of the indoor fan casing 6 provided at the shaft of the fan motor 3 is angled with respect to the horizontal axis of the air conditioner main body 1 according to the inclination of the indoor fan 4. The bend angle of the ventilation passage that exits from the passage to the indoor-side outlet 13 is an obtuse angle, and the power supply operation unit 12 is provided on the left side opposite to the outlet.

FIG. 2 shows a second embodiment of the present invention in which the indoor outlet 13 is constructed as an upper outlet instead of the first embodiment of lateral outlet. The tilted mounting of the axial fan motor 3 and the deflection of the wind in the indoor casing 6 at a shallower angle than the right angle are the same as in the first example. The blowing resistance is also reduced in this embodiment.

FIG. 4 shows the relationship between the blowing angle and the air volume. This is a condition that the condition on the suction side is constant, the sirocco fan blowout position and the air conditioner body blowout position are the same distance, and only the sirocco fan blowout angle and the air conditioner body blowout angle are changed. The air volume is set to 1.0 when the angle is 0 degree. From this figure, it can be seen that it is better to have no angle in the blowing direction in terms of air volume. In the conventional example, this angle is always 90 degrees, and the air volume decreases. Noise is not described here because the air conditioner must consider the noise on the blowing side and the noise on the suction side at the same time, but in general, sirocco fans also produce noise if the resistance decreases on both sides of the suction. It is known to go down. However, setting the angle to 0 degrees requires consideration of the efficiency of the outdoor propeller fan as long as the fan motors of both axes are used, and it is considered that the angle is limited to about 60 degrees.

[0011]

As is apparent from the above description, the present invention has the following advantages.
Since the fan motor is installed so that its axial line is not parallel to the longitudinal line of the main unit, the air passage on the indoor side is configured to have low resistance, and the air volume is efficiently produced. The noise can be reduced.

Further, if a heat exchanger on the indoor side is provided in parallel with the inclination of the sirocco fan, an operating portion such as a power source can be provided on the left side. In this case, the suction side is not hit and cold air does not hit the conventional example. As described above, it is not necessary to provide an operating portion at the lower part of the blowout port, and the operating portion is cooled by the cold air blown out and the insulating state is not deteriorated by dew.

[Brief description of drawings]

FIG. 1A is a plan view showing a configuration of a ventilation circuit of an air conditioner according to an embodiment of the present invention, and FIG. 1B is a front view of the air conditioner (a front grill and a heat exchanger are omitted).

FIG. 2 (a) is a plan view showing a configuration of a ventilation circuit of an air conditioner according to a second embodiment of the present invention, and FIG. 2 (b) is a front view of the air conditioner (a front grill and a heat exchanger are omitted).

FIG. 3A is a plan view showing a configuration of a ventilation circuit of a conventional air conditioner, and FIG. 3B is a front view of the air conditioner (the front grill and the heat exchanger are omitted).

FIG. 4 is a diagram showing the relationship between the relative angle between the blow-out of the indoor sirocco fan and the blow-out of the air conditioner of the indoor / outdoor integrated air conditioner, and the blown air volume.

[Explanation of symbols]

 3 Double shaft fan motor 4 Indoor fan (Sirocco fan) 5 Indoor heat exchanger 6 Indoor casing 7 Outdoor fan (Propeller fan) 8 Outdoor heat exchanger

Claims (4)

[Claims] 1. An air conditioner integrated with an outdoor unit and an indoor unit, wherein a propeller fan is attached to the shaft on the outdoor side of a double-axis fan motor, and a sirocco fan is attached to the shaft on the indoor side. The axial line is attached so that it forms an angle of 3 to 20 degrees on the plane with respect to the longitudinal line of the air conditioner body, and the air passage leading from the sirocco fan to the air outlet in front of the air conditioner is obtuse. Bent air conditioner. 2. The air conditioner according to claim 1, wherein the indoor heat exchanger is provided perpendicularly to the axial line of the double shaft fan motor. 3. The air conditioner according to claim 1, wherein the outdoor heat exchanger is provided vertically with respect to the line in the front-rear direction of the main body. 4. The air conditioner according to claim 2, wherein a blowout port is provided on one of the left and right sides when viewed from the front of the indoor side, and the operation portion is provided on a side portion opposite to the blowout port.