JPS6222940A - Ventilation-cooling-heating device built in ceiling - Google Patents

Abstract

PURPOSE:To provide ventilation function as well as cooling/heating functions without installing a room unit on the wall by disposing an air duct which distributes the air blown by a fan that draws air from an inlet disposed in the ceiling to the outlet disposed in the ceiling and to the outside, a damper which opens or closes said duct and a heat exchanger in the air duct which is connected to the outlet. CONSTITUTION:The air drawn by a blower fan 7 from the inlet 4 is released to the outside for ventilation by opening the damper 8 and closing the damper 9, or is blown as cold or hot air from the outlet 12 by opening the damper 9 and closing the damper 8 to allow heat-exchanging by the usage side heat exchanger 11. Further, by adjusting the opening of the dampers 8, 9 respectively to a suitable degree when operating under cooling or heating mode, part of air drawn by the blower fan 7 can be released to the outside, permitting the ventilation while continuing the cooling or heating operation.

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to an in-ceiling ventilation/heating/cooling device for ventilation and heating/cooling of a room.

2. Description of the Related Art An example of a room in which a conventional ventilation system and air conditioning system are installed will be explained with reference to FIG. In the same figure, the heating and cooling device 1d
, separate heat pump near conditioner, indoor unit 1. Outdoor unit 2. It consists of a compressor, condenser, evaporator, capillary tube, etc. An example is shown in which a ceiling-embedded ventilation fan is used as the ventilation system. It is composed of a duct 6 and a discharge duct 6.

Problems to be Solved by the Invention With such a conventional configuration, when rearranging furniture in a room, it is impossible to easily remove and move the indoor unit of the near conditioner mounted on the wall. The indoor unit often gave a strange feeling to the room.

Additionally, the controls for the ceiling-mounted ventilation fan and the air conditioning system were not the same, making it inconvenient to use.

The present invention solves these problems, and aims to provide an indoor unit that has ventilation and air conditioning functions without having to mount an indoor unit on the wall.

Means for Solving the Problem In order to solve this problem, the in-ceiling type ventilation/heating/cooling device of the present invention includes a fan that sucks air from an inlet provided on the ceiling surface, and a fan that sucks air from an inlet provided on the ceiling surface, and the inlet and the fan. It is equipped with a connecting duct, a ventilation path that separates the air from the air outlet provided on the ceiling surface and the outdoors from the fan, and a damper that opens and closes this ventilation path. This configuration includes an exchanger.

Function With the above configuration, during ventilation, the damper is moved to open the ventilation path on the ventilation side, allowing indoor air to pass through the duct and be exhausted to the outside.

During heating and cooling, the damper is moved to open the ventilation path that communicates with the outlet, allowing the air blown by the fan to pass through the heat exchanger, allowing hot and cold air to be blown into the room from the outlet.

In addition, by appropriately adjusting the ventilation damper and the cooling/heating damper during cooling/heating, a portion of the air sucked by the fan can be released outdoors, making it possible to ventilate while cooling/heating.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2.

In the figure, an inlet 4 and an outlet 12 are provided on a ceiling 10. A blowing fan 7 and a duct 6 connecting the blowing fan 7 and the suction port 4 are installed in the ceiling 1o. Dampers 8 and 9 are provided on the leeward side of the blowing fan 7 to switch the flow. A damper 8 is provided on the suction side of an exhaust duct 13, which is a ventilation path that communicates with the outside and ventilates the inside of the room. A user-side heat exchanger 11 forming a refrigeration cycle with the outdoor unit 14 is housed, and a damper 9 is provided on the suction side of a ventilation path communicating with the outlet 12.

In the above configuration, the air sucked from the suction port 4 by the ventilation fan 7 is transferred to the exhaust duct 13 by opening the damper 8 and closing the damper 9, as shown in FIG.
It is released outdoors through the ventilator and ventilated. Next, as shown in FIG.
Heat exchange is performed at the air outlet 12, and the air is blown out as cold and hot air. Furthermore, by appropriately adjusting the opening degrees of the dampers 8 and 9, a portion of the air sucked in by the blower fan 7 can be released outdoors during heating and cooling operation. It is also possible to provide ventilation. A drain pipe 15 is a pipe for draining dehumidified water generated from the user-side heat exchanger 11 to the outside during cooling operation.

Effects of the Invention As is clear from the description of the embodiments above, the present invention provides an inlet and an outlet on the ceiling surface, thereby eliminating the need to install an indoor unit that often needs to be moved, such as when rearranging furniture in the room. It also does not create any sense of incongruity in terms of design. Furthermore, by providing a damper, ventilation and heating and cooling can be performed independently or simultaneously.

[Brief explanation of the drawing]

Figures 1 and 2 are cross-sectional views of the main parts of a room in which an in-ceiling type ventilation/heating/cooling system according to an embodiment of the present invention is installed, and Figure 3 is a main part of a room in which a conventional air-conditioning/heating system and ventilation fan are installed. It is a cross section. 4... Suction port, 6... Duct, 7...
... 7 amps for blowing air, 8.9 ... damper,
10... Ceiling, 11... Usage side heat exchanger, 12... Air outlet. Name of agent: Patent attorney Toshio Nakao and one other person (o
- Alone Figure 2

Claims (1)

[Claims] A fan that sucks air through an inlet provided on the ceiling, a duct that connects the inlet and the fan, and ventilation that divides the air blown by the fan into an outlet provided in the ceiling and outdoors. This is an in-ceiling ventilation/heating/cooling system that is equipped with a heat exchanger in the ventilation path that communicates with the air outlet.