JPH0213211B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a ceiling-embedded heat pump type air conditioner having a ventilation function.

Conventional technology Conventionally, many air-cooled heat pump air conditioners called floor-standing individual air conditioners installed in highly sealed buildings, etc. are installed in the perimeter zone of the building, and in this perimeter zone, air intake or It was designed to condition the air in a large room while exhausting air.

Problems to be Solved by the Invention However, since many of these floor-standing air conditioners are installed in the perimeter zone, the ratio of the floor area for installing the air conditioners to the total indoor floor area is limited. The problem is that it is very large and requires a lot of installation space. In addition, these individual air conditioners either perform air conditioning while only taking in or exhausting air, or perform air conditioning while simultaneously taking in and exhausting air. As a result, the ventilation volume changed due to the pressure difference between indoor and outdoor spaces, making it impossible to provide sufficient ventilation. In addition, the latter system that performs simultaneous intake and exhaust has a large heat loss because it directly discharges conditioned air and takes in outside air.Furthermore, the air conditioner occupies a large floor in the perimeter zone. The area was not used effectively, and since these air conditioners were installed only in the perimeter zone, the blowing air speed did not reach the central interior zone, causing problems such as insufficient air conditioning. .

Therefore, the present invention eliminates the need for the floor space of a building to install an air conditioner, makes effective use of the floor space, and reduces heat loss even when simultaneous air intake and exhaust is performed, even in interior zones and perimeter zones. However, it provides a ceiling-mounted heat pump type air conditioner that can provide sufficient air conditioning.

Means for solving the problems The means of the present invention for solving the above problems are as follows:
An outdoor inlet and an outdoor outlet on one side of the main body of the air conditioner, an indoor inlet and an indoor outlet on the other side, and an outdoor unit part in the main body, approximately diagonally diagonally above the outdoor inlet. an outdoor heat exchanger provided;
an outdoor blower provided opposite to the outdoor air outlet;
In the indoor unit part, an indoor heat exchanger provided approximately diagonally from the indoor suction port, an air filter provided opposite to the indoor heat exchanger, and an air filter provided opposite to the indoor air outlet. a first damper, a total heat exchanger that communicates with a part of the outdoor suction port and is provided opposite to the front surface of the main body, between the indoor blower, the outdoor heat exchanger, and the indoor heat exchanger; The total heat exchanger is equipped with a second damper that opens and closes a ventilation path that communicates with the indoor heat exchanger from the outdoor suction port and communicates with the outdoor heat exchanger from the front of the total heat exchanger during cooling and heating, and a second damper on the front side of the main body. , equipped with a compressor and electrical equipment, during heating and cooling,
An outdoor ventilation flow path is formed in which the outdoor suction port communicates with the outdoor air outlet through the outdoor heat exchanger, and an indoor ventilation flow path is formed in which the outdoor suction port communicates with the indoor air outlet through the indoor heat exchanger, thereby cooling the outside air. When the first damper is switched to connect the outdoor suction port to the indoor heat exchanger,
An outside air intake flow path that communicates with the indoor air outlet and an indoor exhaust path that communicates from the indoor suction port with the outdoor air outlet via the outdoor heat exchanger are formed.

Effect The effect of this technical means is as follows.
That is, during heating and cooling, the first damper is switched to form an outdoor ventilation flow path, which connects the outdoor air inlet to the outdoor air outlet via the outdoor heat exchanger, and the indoor air intake to the indoor heat exchanger. Through
In addition to forming an indoor ventilation flow path that communicates with the indoor air outlet, the second damper is opened and total heat is transferred from the exhaust port through the total heat exchanger to an exhaust flow path that merges with the outdoor ventilation flow path, and from the intake port. Heating and cooling is performed by providing an intake flow path that merges with the indoor ventilation flow path via an exchanger. In addition, when cooling the outside air, the first damper is switched to the outside air cooling side, the second damper closes the ventilation, and the outside air intake flow path that communicates from the outdoor suction port to the indoor air outlet via the indoor heat exchanger, and the indoor suction Outdoor air cooling is performed by forming an indoor exhaust passage that communicates from the opening to the outdoor air outlet via the outdoor heat exchanger.

Embodiment Hereinafter, a ceiling-embedded heat pump type air conditioner which is an embodiment of the present invention will be described based on FIGS. 1 and 2. FIG. 2 is a schematic installation diagram of the ceiling-embedded heat pump type air conditioner according to the present invention, in which the main body 1 is suspended in the ceiling 2, and an outside air introduction duct 4 is installed from the wall surface 3, and an outside air An exhaust duct (not shown) is provided on the other side, and an indoor suction duct (not shown) and an indoor blow-off duct 5 are provided on the other side, and the conditioned air flows through the blow-off port 6 that forms the central interior zone on the ceiling surface. On the other hand, a part of the indoor air flows into the total heat exchanger suction port 8 of the main body 1 from the exhaust port 7.

FIG. 1 is a plan sectional view of the main body 1. FIG. On one side of the main body 1, there are an outdoor suction port 10 connected to the outside air introduction duct 4 from the front surface 14 side, and an outdoor air outlet 11 connected to the outside air exhaust duct and having an outdoor blower 18.
The other side is provided with an indoor suction port 12 connected to the indoor suction duct from the outdoor unit section 15 side, an indoor blower 22 connected to the indoor blow-off duct 5, and
An indoor air outlet 13 is provided. Between the outdoor air outlet 11 and the outdoor suction port 10 is a
An outdoor heat exchanger 17 is provided approximately diagonally above the partition plate 16. Further, in parallel to this outdoor heat exchanger 17, an indoor heat exchanger 21 is provided approximately diagonally from a second partition plate 20 provided at approximately the center of the front surface 14 of the main body 1 to the indoor suction port 12. There is. An air filter 23 is provided adjacently between the indoor heat exchanger 21 and the outdoor heat exchanger 17, and a damper motor 25 and its arm are provided between the air filter 23 and the outdoor heat exchanger 17. 26, a first damper 24 is provided which is driven about a fulcrum 27 as an axis. This first damper 24
During cooling/heating, the arrow 43a becomes a solid line position and connects the outdoor suction port 10 and the outdoor heat exchanger 17.
When cooling with outside air, it is in the dotted line position, outdoor suction port 10
communicates with the indoor heat exchanger 21, arrow 50, arrow 4
5 flow path. On the other hand, inside the outdoor suction port 10, there is an intake port 30 partitioned by a third partition plate 29 provided parallel to the front surface 14, and an exhaust port 31 provided on the front surface 14 in the vicinity of this intake port 30. , communicates with a total heat exchanger 28 provided at this inner corner. 3
2, the second damper 33 is placed in the solid line position during heating and cooling;
During outside air cooling and ventilation, the second damper motor is driven to the dotted line position, and the indoor air flowing in from the exhaust port 31 is passed through the total heat exchanger 28 to the guide plate 34 provided on the third partition plate 29. The outdoor air flowing in from the exhaust air passage 35 communicating with the outdoor heat exchanger 17 and the air intake port 30 is transferred to the total heat exchanger 2.
8 constitutes an intake ventilation passage 36 that communicates with the indoor heat exchanger 21 via the air filter 23. Further, on the front side 14, in addition to the total heat exchanger 28, there is provided an electrical equipment section 38 that houses a compressor 37 and electrical equipment. 39 is a drain connection pipe that connects the outdoor drain pan 40 provided below the outdoor heat exchanger 17 and the indoor drain pan 41 provided below the indoor heat exchanger 21, and raises the position of the outdoor drain pan 40. The water flows from the outdoor drain pan 40 to the indoor drain pan 41, and is discharged from the other indoor drain pan 41 to the outdoors via a drain pipe 42. Arrows 43 and 43a are outdoor ventilation channels during air conditioning, arrows 44 and 44a are indoor ventilation channels, and arrow 45 is an outdoor air intake channel during outdoor air cooling, when the first damper 24 is switched to the dotted line position during outdoor air cooling. , the air flowing in from the outdoor suction port 10 passes through the air filter 23 and the indoor heat exchanger 2.
1 to the indoor air outlet 1 by the indoor blower 22.
It is blown out from 3.

An arrow 46 indicates an air intake flow path that communicates from the intake port 30 with the air filter 23, the indoor heat exchanger 21, and the indoor air outlet 13 through the total heat exchanger 28 during air conditioning, and an arrow 47 indicates an air flow path that communicates with the air filter 23, the indoor heat exchanger 21, and the indoor air outlet 13 during air conditioning. An exhaust flow path 4 communicating from the exhaust port 31 to the total heat exchanger 28, the outdoor heat exchanger 17, and the outdoor outlet 11;
Reference numeral 8 indicates an attachment/detachment opening for the air filter 23 provided on the front surface 14, and 49 indicates a fourth opening extending from the second damper motor 32 to the end of the first damper 24.
It is a partition plate. The arrow 50 indicates the first damper 24,
When the second damper 33 is switched to the dotted line position, an outside air intake flow path 45 (arrow) is formed, while an indoor discharge flow path that communicates from the indoor suction port 12 to the outdoor heat exchanger 17 and the outdoor air outlet 11 (arrow 50) is formed. In other words, stop the heating and cooling operation,
During outside air cooling, the first damper 24 and the second damper 33 are switched to the dotted line positions, and outside air is taken in by the indoor blower 22 and indoor air is discharged by the outdoor blower 18. Ru. or,
When the outside air cooling operation and the heating and cooling operation are stopped (full stop), the first damper 24 is at the solid line position, the second damper 33 is at the dotted line position, and the total heat exchanger 28
Since the ventilation passages 35 and 36 are closed, outside air is not introduced by natural flow, and also from the outdoor suction port 10 and the outdoor air outlet 11 by the first damper 24. The natural inflow of outside air is blocked, and no outside air is ever introduced.

In the above configuration, during cooling and heating operation, the first
The damper 24 and the second damper 33 are in the solid line position. By operating the compressor 37, indoor blower 22, and outdoor blower 18, the air flowing in from the outdoor suction port 10 via the outside air introduction duct 4 is directed to the first damper 2 as shown by arrows 43 and 43a.
4, passes through the outdoor heat exchanger 17,
The air is blown out from the outdoor outlet 11 via the outdoor blower 18 . On the other hand, air flowing in from the indoor suction port 12 via the indoor suction duct hits the first damper 24, passes through the air filter 23, the indoor heat exchanger 21, and the indoor blower 22, as shown by arrows 44 and 44a. The air is guided to the interior zone, and is blown into the room from the indoor air outlet 13 through the indoor air duct 5.

On the other hand, during the same heating and cooling process, indoor air is exhausted while outside air is taken in. At this time, the flow path starts from the intake port 30 and passes through the total heat exchanger 28.
While passing through the ventilation passage 36 and the air filter 23, it merges with the flow passage indicated by the arrow 44a, and is connected to the indoor air outlet 13.
The indoor air from the air intake passage 46 that blows out into the room, and the indoor air from the air intake port 7 that flows in from the exhaust port 31 passes through the total heat exchanger 28 and exchanges heat with the air that flows from the air intake port 30. 35, arrow 43
The air flows through the outdoor heat exchanger 17 and the outdoor blower 18, and forms an exhaust flow path 47 that exhausts the air outside.

Next, when outside air cooling or ventilation is performed outside the cooling/heating season, the first damper 24 and the second damper 33 are in the dotted line position, and the outdoor blower 18 and the indoor blower 22 are is driving. Therefore, the outside air flowing in from the outdoor suction port 10 passes through the air filter 23, the indoor heat exchanger 21, and is blown out from the indoor air outlet 13 as shown by the arrow 45, and is then blown out from the outside air intake channel 45, which performs outside air cooling and ventilation. is formed.

On the other hand, as shown by an arrow 50, indoor air flowing in from the indoor suction port 12 passes through the outdoor heat exchanger 17 and the outdoor blower 18, and an indoor exhaust flow path 50 is formed in which the indoor air flows to the outdoor air outlet 11. Provide ventilation.

In addition, in this configuration, parts that have many maintenance opportunities, such as the compressor 37, the total heat exchanger 28, and the electrical equipment section 38, are configured to face the front surface 14, and the air filter 23 can be attached and detached easily.
It can be easily attached and detached by pulling it out diagonally from the attachment/detachment opening 47 and inserting it, so that maintenance can be easily performed.

Effects of the Invention As described above, in the present invention, the indoor unit section and the outdoor unit section are each provided with a partition plate approximately diagonally on the main body, and the outdoor unit section is provided with a partition plate.
An outdoor suction port, an outdoor air outlet, an outdoor heat exchanger on a diagonal, an outdoor blower facing the outdoor air outlet, and an air filter attached to the indoor unit, An indoor heat exchanger, an indoor suction inlet, an indoor outlet, and
A first air blower installed between the indoor blower, which is provided opposite to the indoor air outlet, the outdoor heat exchanger, and the indoor heat exchanger, is used to switch between heating/cooling and cooling with outside air.
A damper, a total heat exchanger that communicates with a part of the outdoor suction port, and a total heat exchanger that communicates with the indoor heat exchanger from the outdoor suction port and connects to the outdoor heat exchanger from the front of the main body during heating and cooling. A second damper is provided to open and close each ventilation passage that communicates with the main body, a compressor is provided on the front side of the main body, an electrical component, and an attachment/detachment port for attaching and detaching the air filter. An outdoor ventilation flow path that communicates with the outdoor air outlet via the exchanger, and an indoor ventilation flow path that communicates with the indoor air outlet via the indoor heat exchanger from the indoor suction port are formed. an outdoor air intake flow path that communicates from the outdoor suction port to the indoor air outlet via the indoor heat exchanger by switching the first damper and the second damper;
and an outdoor heat exchanger 17 from the indoor suction port 12;
Since it is a heat pump type air conditioner that has an outdoor blower 18 and an indoor exhaust flow path that communicates with the outdoor outlet 11, the area occupied by the air conditioner in the total indoor floor area of the building is zero, and the floor area is effectively used. With this configuration, maintenance of the compressor, total heat exchanger, and air filter can be easily installed and removed from the front, and maintenance of electrical components, indoor heat exchangers, etc. is also easy. This can be done easily from the front.

In addition, in the intake/exhaust configuration, heat is recovered while simultaneously performing intake/exhaust in the total heat exchanger during cooling/heating, so there is little heat loss, and the pressure difference between indoors and outdoors is maintained well, resulting in good ventilation. A device may be provided.

Furthermore, the conditioned air can be guided from the indoor air outlet through the duct to the interior zone in the center of the room, and can also be guided to the perimeter zone. It can be guided to any location and has the effect of providing sufficient air conditioning.

[Brief explanation of drawings]

FIG. 1 is a block diagram of a ceiling-embedded heat pump type air conditioner, and FIG. 2 is an installation example diagram of a ceiling-embedded heat pump type air conditioner according to an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1...Main body, 10...Outdoor suction port, 11...Outdoor air outlet, 12...Indoor suction port, 13...Indoor air outlet, 15...Outdoor unit section, 17...Outdoor heat exchanger, 18... ...Outdoor blower, 19...Indoor unit section, 21...Indoor heat exchanger, 22...Indoor blower, 23...Air filter, 24...First
Damper, 28... Total heat exchanger, 33... Second damper, 35, 36... Ventilation path, 37... Compressor, 38... Electrical equipment section.

Claims (1)

[Claims] 1. On one side of the air conditioner main body, an outdoor inlet and an outdoor air outlet, on the other side, an indoor air inlet and an indoor air outlet, and on the outdoor unit inside the main body,
An outdoor heat exchanger provided approximately diagonally from the outdoor suction port, an outdoor blower provided opposite to the outdoor air outlet, and an air filter attached to the indoor unit, and the outdoor heat exchanger An indoor heat exchanger, an indoor blower provided opposite to the indoor air outlet, and an indoor air blower installed on a diagonal parallel to and parallel to the , a first damper that is switched to the outside air during cooling; a total heat exchanger that communicates with a part of the outdoor suction port and is provided facing the front of the main body; The suction port communicates with the indoor heat exchanger, and the other
A ceiling provided with a second damper for opening and closing each ventilation passage communicating with the outdoor heat exchanger from the front side of the main body, a compressor, an electrical equipment section, and an attachment/detachment port for attaching and detaching the air filter on the front side of the body. Built-in heat pump air conditioner.