JPS6124929A - Air conditioner - Google Patents

Abstract

PURPOSE:To improve the temperature distribution during the cooling and heating operations by disposing a propeller type fan in the air outlet so that when the fan is rotated in one direction, the air is blown downward, whereas when it is rotated in the other direction, the air is blown horizontally. CONSTITUTION:When the unit 1 is operated, for instance, in the heating mode, a fan 15 is rotated in the normal direction. That is, the air taken in from an inlet 13 passes through heat exchangers 4, 5 by a heat exchanger fan 3, and the hot air passes through conduits 9, 10 to be blown out of outlets 7, 8. The blown hot air is directed downward to the living space by vanes 18 so that it may not stay under the ceiling 2. When the unit 1 is operated in the cooling mode, the rotation of the fan 15 is reversed. That is, the air taken in from the center outlet 13 passes through the heat exchangers 4, 5 by the heat exchanger fan 13, and the cold air passes through the conduits 9, 10 to be blown out of the outlets 7, 8. The blown cold air is directed horizontally to the proximity under the ceiling 2 by the vanes of the fan 15 rotating in the reversed direction so that the cold air blown out of the outlets 7, 8 may be directed to the underside of the ceiling 2, and the cold air having a larger specific gravity may descend to improve the temperature distribution.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ceiling-mounted air conditioner, such as a ceiling-suspended type or a ceiling-embedded type.

Conventional configurations and their problems Traditionally, air conditioners installed on the ceiling, such as those that are suspended from the ceiling or recessed in the ceiling, have variable-shaped louvers at the outlet to change the direction of airflow. The system is manually operated so that air is blown diagonally downward during cooling and directly downward during heating. The diagonally downward blowout during cooling is as follows:
The cooled air with a high total heat specific gravity is naturally lowered into the living space below, and the direct downward blowout during heating is carried out as much as possible to prevent air with a low total heat specific gravity from accumulating near the ceiling. By spraying the air into the space, it eliminates uneven temperature distribution during cooling and heating.
-However, if only the air outlet louver is used to change the air outlet direction between cooling and heating,
Sufficient temperature distribution is not obtained, and there is also a loss due to pressure loss in the louver itself, and in order to reach the air speed close to the living space (during heating), the blowing air speed must be significantly increased, and the temperature The distribution had the disadvantage that it was not yet satisfactory.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and aims to improve the temperature distribution during cooling and heating by an air conditioner installed on the ceiling surface.

Structure of the Invention The present invention provides a heat exchange blower corresponding to heat exchangers located on both sides in the main body of an air conditioner, and a blower for blowing out conditioned air from the bottom surface of the main body after passing through the heat exchanger. The outlet, the suction port provided at the center of the lower surface of the main body, and the motor of a propeller-type blower located near the suction port are connected to each other, and a blade located at the blow-off port is provided. By rotating the blades in the opposite direction during heating, the air from the outlet is diffused laterally during cooling, and the air from the outlet reaches the living space during heating. This is what I did.

DESCRIPTION OF EMBODIMENTS An embodiment according to the present invention will be described based on the drawings. 1 is the main body of the air conditioner, which is embedded in the ceiling 2. Reference numeral 3 denotes a heat exchange blower provided within the main body 1, and is provided corresponding to the heat exchangers 4 and 5 that are divided or located on both sides. Reference numeral 6 denotes a shielding plate provided as a set plate above the heat exchangers 4 and 5. Reference numerals 7 and 8 denote air outlets which are so-called openings and do not have air outlet louvers. A communication passage 9 is provided between 5 and the blowout lower 8.
1o is provided. 11.12 is a partition plate that constitutes this communication path 9.1o, 13 is a suction port provided in the center of the lower surface 14 of the main body, 15 is a propeller type blower with a motor 16,
A blade 18 is provided near the suction port 13 and faces the blowout lower 8 via a connecting rod 17.

The propeller-type blower 16 rotates in one direction, in the forward direction, during heating operation, and blows out the air blown from the blowout lower 8 into the living space below, and when it rotates in the reverse direction,
During cooling operation, the blower lower.

It is configured so that the air blown out from 8 is blown out laterally.

In the above configuration, for example, when the main body 1 is put into heating operation, the propeller type blower 15 rotates in the normal direction.

That is, the air flowing in from the suction port 13 is transferred to the heat exchange blower 3.
, it passes through the heat exchangers 4 and 5, and the temperature is changed to the communication path 9,
It passes through 1o and is blown out from the blowout lower, 8. The hot air blown out is blown out to the lower living space (indicated by the dotted line arrow) by the blades 18 to prevent the hot air from accumulating below the ceiling 2.

Next, main body 1. When the cooling operation is performed, the propeller type blower 15 rotates in the opposite direction. That is, the air flowing in from the central suction port 13 is passed through the heat exchangers 4 and 6 by the heat exchange blower 3, and the cold air passes through the communication passages 9 and 1° and is blown out from the blowout lower 8. The cold air blown out is blown toward the bottom of the ceiling 2 in the horizontal direction by the blades 18 of the propeller-type blower 15 rotating in the opposite direction, and the cold air blown out from the blowout lower 8 is used as a blowout from the bottom of the ceiling. , which lowers the relative cold air and improves the temperature distribution.

Effects of the Invention As described above, the present invention provides a propeller-type blower at the outlet that blows air from the lower surface of the main body, and the propeller-type blower
When rotating in one direction, the air is blown downward, and when rotating in the other direction, air is blown sideways. Therefore, during heating, the blades of the propeller-type blower blow directly into the living space below, and the high-temperature air blows onto the ceiling. During cooling, the propeller-type blower is rotated in the opposite direction and blows in the horizontal direction to improve the convection of cold air. The distribution can be optimized. Furthermore, since the air outlet does not require a louver unlike the conventional one, there is no wind pressure resistance, and it also exhibits effects such as quietness.

[Brief explanation of the drawing]

The figure is a sectional view of a ceiling type air conditioner according to an embodiment of the present invention. 1...Body, 3...Blower for heat exchange, 4
, 5... Heat exchanger, 7, 8... Air outlet, 13... Suction port, 15... Propeller type blower, 16... Motor, 18... Feather.

Claims (1)

[Claims] A heat exchange blower corresponding to the heat exchanger located inside the main body, a suction port provided on the bottom surface of the main body, and an outlet that communicates with this suction port and through which air that has passed through the heat exchanger is blown out from the bottom surface of the main body. and a blade that rotates in different directions during cooling and heating and faces the air outlet.