JPS5832086Y2 - Kuukichiyouwaki - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air conditioner equipped with a cross-flow fan.

A conventional air conditioner is as shown in FIG.

That is, 1 is an outer box, 2 is a front grill, 3 is a cross-flow fan, 4 is a vortex stabilizer, 5 is a back guider, 6 is a filter, 7 is a heat exchanger, and 8 is an inner bottom plate.

In the above configuration, when the cross-flow fan 3 is rotated in the direction of the arrow a, a vortex is generated as shown by the arrow A, and air is sucked through the suction port 21 and the filter 6 as shown by the arrow C, and heat exchange is performed. The heat is exchanged in the vessel 7 and flows through the once-through fan 3.
It is sucked out from the suction port 22.

However, the flow velocity is slow near the area surrounded by the broken line d, and sometimes the flow reverses as shown by the arrow e.

Therefore, conventionally, the amount of heat exchanged in the heat exchanger 7 near the area indicated by the broken line d was extremely small.

Further, regarding noise, there is a drawback that vortices are generated due to the backflow as shown by arrow e, and the noise becomes louder.

The object of the present invention is to eliminate the above-mentioned drawbacks, maintain a uniform high heat exchange amount throughout the heat exchanger, and provide an air conditioner with low noise.

An embodiment of the present invention will be described below with reference to FIG.

Note that parts similar to those in the conventional example shown in FIG. 1 are given common numbers.

31 is a first cross-flow fan, and 41 is a first vortex stabilizer.

32 is a second cross-flow fan, which is provided opposite to the lower part of the heat exchanger 7.

42 is a second vortex stabilizer plate.

Next, the operation of the present invention in the above-described configuration will be explained. What is different from the conventional example shown in FIG.
This is to merge with the flow of arrow C caused by the cross-flow fan 31 and blow out from the outlet 22.

Therefore, the flow velocity of a part of the air passing through the heat exchanger does not become slow as in the conventional case, and a uniform flow can be obtained throughout the heat exchanger.

As a result, a uniform amount of heat exchange can be obtained throughout the heat exchanger, and there is no backflow and noise is reduced.

Further, a second cross-flow fan 3 is provided in a part of the first cross-flow fan 31.
Since the conditioned air that has passed through 2 flows in, at the outlet,
Good pressure characteristics can be obtained.

Therefore, it is possible to place a heat exchanger on the blowout side as well, increasing the amount of heat exchange, and furthermore, the blowout noise can be reduced due to the rectification effect of the blowout side heat exchanger.

Furthermore, due to the sound insulation effect of the blow-out side heat exchanger, noise caused by wake holes generated near the outer periphery of the once-through fan can also be reduced.

As described above, according to the air conditioner of the present invention, a heat exchanger is provided on the suction side of the first once-through fan provided with the first vortex stabilizer plate and the back guider, and the first cross-flow fan is provided with the heat exchanger on the suction side. A second vortex stabilizer plate is provided at a slow flow rate portion between the once-through fan and the heat exchanger, and the second vortex stabilizer plate blows air in the same direction as the first once-through fan.
A once-through fan is installed.

Therefore, a uniform amount of heat exchange can be obtained by making the amount of air uniform over the entire heat exchanger, and the performance of the air conditioner can be improved.

In addition, 1. Since the air flowing out from the second once-through fan flows in, it is possible to obtain good pressure characteristics at the outlet. Therefore, sound insulating materials, heat exchangers, etc. are installed on the outlet side to reduce noise and improve the air conditioner. It becomes possible to improve the ability of

Furthermore, since there is no reverse flow of air between the first once-through fan and the heat exchanger, noise can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional view of a conventional air conditioner, and FIG. 2 is a vertical sectional view of an air conditioner according to an embodiment of the present invention. 5... Rear guider, 7... Heat exchanger,
31...First cross-flow fan, 32...
second cross-flow fan, 41...first vortex stabilizer,
42...Second vortex stabilizer plate.

Claims (1)

[Scope of utility model registration request] A heat exchanger is provided on the suction side of the first once-through fan including a first vortex stabilizer and a back guider, and the heat exchanger and the first
In order to equalize the flow velocity distribution between the suction sides of the first once-through fan, a second vortex stabilizing plate is installed in a portion where the flow rate of the conditioned air is low between the suction side of the first once-through fan and the heat exchanger. An air conditioner configured to include a second cross-flow fan having a second cross-flow fan, and send conditioned air that has passed through the second cross-flow fan to the suction side of the first cross-flow fan.