JPS6143144Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an air conditioner, and particularly to an improvement in the structure of a ceiling-suspended air conditioner.

Conventionally, in this type of air conditioner, as shown in FIG. A blower 7 is disposed so as to blow air to the housing 1, and a suction port 4 is provided on the lower surface of the housing 1 in correspondence with the blower 7.

In this case, air conditioners are often installed at a higher position than the living space, such as a ceiling-mounted type, in order to save space, as shown in Figure 4, and during heating operation, the heated air blows out lightly. It accumulates on the ceiling and is difficult to reach the living space, creating a temperature distribution in the room 1 where the air conditioner 2 is installed. Air conditioner 2
The temperature of the intake air becomes higher than the temperature of the living space air accumulated on the ceiling surface, which causes a decrease in the operating efficiency of the air conditioner 2 which performs heating operation by heat pump operation.

This invention was made to eliminate the above-mentioned drawbacks, and its purpose is to take in air from the living space.

This invention will be explained in detail below with reference to the embodiments shown in FIGS. 1 and 2. Reference numeral 1 designates a ceiling-suspended, flat air conditioner housing, with an air outlet 2 on the front and an air intake grill 3 on the rear lower surface. A blow-in port 4 is provided. Reference numeral 5 denotes a heat exchanger provided behind the air outlet 2, and has a drain pan 6 made of a heat insulating material on the lower side, and a blower 7 is provided after the heat exchanger 5. Reference numeral 8 denotes a second air outlet, which is formed so as to surround the air inlet 4 including the suction grille 3 and to blow air downward away from the air inlet 4.

In the ceiling-mounted air conditioner configured in this way, during heating operation, the blower 7 first sucks air through the suction port 4, and then sucks it in through the second air outlet 8 opened around the suction port 4. Blow out some of the air. Furthermore, the air passing through the heat exchanger 5 is heated and blown out as warm air from the outlet 2 to perform heating. At this time, the air blown out from the second outlet 8 opened around the inlet 4 forms an air curtain state as shown by the broken line arrow in FIG. It's crowded. Therefore, there is no temperature distribution in the room 1, which is air-conditioned by the hot air blown out from the air outlet 8, and the heat pump operating efficiency is improved.

As mentioned above, this idea has an air outlet in the front of the flat housing, an air inlet at the rear of the bottom, a heat exchanger behind the air outlet, and a blower inside the air inlet. A second outlet is provided that surrounds the inlet and blows downward away from the inlet, so air near the floor surface of the living space is sucked in and turned into warm air, especially during heating operation, and distributed indoors. It has great practical effects, such as making the indoor temperature distribution uniform and making it extremely easy to improve heat pump operation efficiency.

[Brief explanation of the drawing]

Figure 1 is a bottom view showing an air conditioner according to this invention, Figure 2 is a side view showing a cross section of the air conditioner according to this invention, with a part cut away, and Figure 3 shows the blowing state of the air conditioner according to this invention. 4 is a diagram of a conventional example corresponding to FIG. 2, and FIG. 5 is a diagram of a conventional example corresponding to FIG. 3. The same symbols in the figures indicate the same or corresponding parts, 1
is an air conditioner housing, 4 is an inlet, and 11 is a second outlet.

Claims (1)

[Scope of utility model registration request] A flat housing with an air outlet at the front and an air inlet at the rear of the bottom, with a heat exchanger behind the air outlet and a blower behind the heat exchanger inside the air inlet. An air conditioner characterized in that a second outlet is provided surrounding the inlet and blowing air downward away from the inlet.