JPS6157535B2 - - Google Patents

Description

[Detailed description of the invention] The present invention stores the main body of an air conditioner in the ceiling,
The present invention relates to an air conditioner in which the air intake and outlet grilles are exposed on the ceiling surface, and the air outlet direction is divided into two directions.

When cooling or heated air is blown out from the ceiling, if the air outlet is blown out from two locations, the unit can be installed in the center of the ceiling and the air can be blown out to both sides, resulting in a good airflow distribution in the air. Therefore, conventionally, a structure as shown in FIG. 1 has been used. That is, the heat exchanger 1 is formed into a V-shape, and air sucked in from the suction grille 4 is passed through the heat exchanger from two directions with the water receiver 3 at the bottom of the heat exchanger as the boundary as shown by the arrow, using a lower blower to exchange heat. The air cooled or heated by the device was divided into two directions in the air passage 6 and blown out from the two blow-off grilles 5.

Here, a cabinet combining a heat exchanger, a blower, etc. of the air conditioner is suspended from a ceiling beam 9 by hanging bolts 8, and a panel 7 equipped with an intake grill and an outlet grill is attached to a ceiling plate 10, and the air conditioner is mounted on a ceiling panel 10. Only the panels are exposed on the ceiling.

In the conventional case, the direction of the air flow is significantly changed before and after the heat exchanger, which increases ventilation resistance, increases the power of the blower, and causes problems such as noise.

Furthermore, in order to separate the air between the blower and the heat exchanger, it is necessary to increase the dimension a shown in FIG. 1, that is, the dimension between the lowest end of the heat exchanger and the upper end of the blower. In other words, the height of the product increases. This has been a problem in that air conditioners that house a cabinet in combination with a heat exchanger, blower, etc. within the ceiling require a large height within the ceiling, and are restricted in the installation location.

Furthermore, in the case of a cold heat source or cold water passing through a heat exchanger,
Normally, even when the blower is stopped, cold water is still flowing in most cases. In this case, the cold air that has been heat exchanged in the heat exchanger descends due to natural convection, but when the blower is operating, the blown air side is heated. Because it is located above the exchanger, cold air flows in the opposite direction to when the blower is operating, that is, to the suction side. For this reason, there were drawbacks such as the need for insulation to prevent condensation on the cabinet and the suction grill, which were in contact with cold air.

In view of the above points, the present invention smoothes the flow of air before and after the heat exchanger to reduce ventilation resistance, and reduces the distance between the heat exchanger and the blower to reduce the height of the product. Another object of the present invention is to provide an air conditioner in which cool air flows in the same direction as when the blower is in operation even when the blower is stopped.

In order to achieve the above object, the present invention arranges the heat exchanger separately in a V-shape, and blows out air through separate openings, thereby reducing the dimension between the heat exchanger and the blower, and also reducing the air flow between the heat exchanger and the blower. The flow is divided into two directions smoothly.

In addition, by placing the air passage from the heat exchanger below the heat exchanger, the flow of cold air when the blower is stopped is reduced.
Use the same direction as when the blower is running.

The present invention is characterized in that after the air that has been divided into two directions passes through a heat exchanger, it does not flow upward but immediately flows downward. By adopting such a configuration, the height dimension can be reduced. can do.

Hereinafter, the present invention will be explained in detail with reference to an embodiment shown in FIG. In the figure, parts that are the same as or similar to those in FIG. 1 are denoted by the same reference numerals, and their explanations are omitted.

A blower box body 11 is provided above the air suction grille 5, with the blower outlet 2a of the blower 2 facing upward. Reference numeral 12 denotes two separate water containers, which are installed on both sides of the blowing opening of the blower box. 13
The two heat exchangers are separated, and the lower ends are positioned above the water receiver 12, and the upper ends are fixed to the cabinet 15 via the mounting plate 14 so as to be inclined to form a substantially V-shape. be.

17 is a blower discharge chamber formed by both heat exchangers 13 and the upper wall of the cabinet 15. The heat exchanger 13 is arranged obliquely so that the leeward side faces downward. Reference numeral 16 denotes an air passage, which is formed by the outer wall of the blower box 11 and the cabinet 15.

The air sucked in by the blower from the suction grille 5 is divided into directions perpendicular to the heat exchanger as shown by the arrows, passes through the air passage 16 downward, and is blown into the room from the two outlet grilles 6.

As mentioned above, since the heat exchanger is separately arranged in a V-shape just above the blower outlet, the dimension between the lowest end of the heat exchanger and the upper end of the blower (dimension b in Figure 2) can be made extremely small. This reduces the height of the product. In other words, an air conditioner in which a cabinet including a heat exchanger, a blower, etc. is housed in the ceiling can be installed even if the ceiling height is low. Furthermore, since the air from the blower is diverted in a direction perpendicular to the heat exchanger, ventilation resistance can be greatly reduced.

Furthermore, when the blower is stopped, the cool air that has been heat exchanged by the heat exchanger descends and thus flows into the air duct located below the V-shaped heat exchanger. Therefore, since cold air does not flow to the side of the blower, suction grill, etc., there is no need for insulation to prevent condensation on the suction side.

Since the present invention is constructed as described above, the ventilation resistance can be reduced, the height of the product can be reduced, and the flow of cold air during stoppage can be made in the same direction as during operation.

[Brief explanation of the drawing]

FIG. 1 shows a side view of a conventional air conditioner, and FIG. 2 shows a side view of an air conditioner according to the present invention. 2...Blower, 5...Suction grill, 6...Blowout grill, 7...Panel, 8...Hanging bolt, 9...Ceiling beam,
DESCRIPTION OF SYMBOLS 10...Ceiling board, 11...Blower box, 12...Water receiver, 13...Heat exchanger, 14...Mounting plate, 15...Cabinet, 16...Air duct, 17...Discharge chamber.

Claims (1)

[Claims] 1. In an air conditioner in which a panel equipped with an intake grill and an outlet grill is exposed on the ceiling, and a cabinet containing a heat exchanger, blower, etc. is housed in the ceiling, the blower outlet is placed upward on the top of the air intake grill. A heat exchanger with water receivers on both sides of the blow-off opening of the blower box is provided, and the heat exchangers are arranged at an angle in a substantially V shape, and the blower is installed between the two heat exchangers. An air conditioner characterized in that a discharge chamber is formed, the leeward side of the heat exchanger faces downward, and an air passage leading to the lower blowing grille is formed along the outer wall of the blower box.