JPS6214739B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air-source heat pump type heating and cooling device, and in particular, the outside air heated by a solar collector is used as the heat source for the heat pump during heating, and is used as a condenser during cooling. The heat-exchanged outside air is then discharged through the exhaust passage on the indoor side of the heat collector, thereby significantly improving heating and cooling efficiency.

Conventionally, so-called through-the-wall air source heat pumps have been used as air conditioner units for office buildings, etc., but in heating and cooling systems using this type of heat pump, outside air is taken in from the outside wall of the building. It is used as a heat source for heat pumps.

However, heat pumps that use outside air as their heat source lose their efficiency when the outside air temperature drops, and especially in winter, they require the use of an electric heater as a supplementary measure when the outside air temperature drops below a certain level. The disadvantage is that the efficiency of the heat pump during heating is significantly reduced.

In addition, because this type of conventional heating and cooling equipment is installed close to the inner surface of the outer wall of a building, the indoor temperature around the indoor heat exchanger rises in the summer, increasing the cooling load. Even during cooling, there is a drawback that the efficiency of the air conditioner similarly decreases.

This invention was made to eliminate the above-mentioned drawbacks, and an object of the invention is to provide a heating and cooling device that uses outside air heated by solar heat as a heat source for a heat pump. An object of the present invention is to significantly improve the efficiency of an air conditioner during both heating and cooling operations, and a further object of the invention is to connect an air conditioner unit and a solar heat collector adjacent to each other indoors and outdoors. To provide a heating and cooling device that has a simple structure that can be installed and installed, and that is easy to maintain and manage.

That is, in the present invention, as in the illustrated embodiment, a heat collector 10 that heats the outside air using solar heat is attached to the outer wall of a building, and a damper unit 35 is interposed on the indoor side of the heat collector 10. An air conditioner unit 20 consisting of an outdoor unit 30 and an indoor unit 32 is provided, and an air supply passage 22 and an exhaust passage 26 of the outdoor unit 30 are provided between the heat collector 10 and the air conditioner unit 20. , the outside air passage 14 of the heat collector 10 and the air supply passage 2 of the outdoor unit 30
A switching damper 37 which switches one of the two to the open side to take in outdoor air, and a switching damper 37 which switches the flow paths of outdoor air and indoor air and connects the respective flow paths to the indoor unit 32 and the outdoor unit 30. The damper unit 35 is connected to the switching damper 38 to be communicated with the damper unit 35.
The present invention relates to an air-source heat pump type heating and cooling device characterized in that it is provided in a.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a longitudinal side view of an embodiment of the present invention, and FIGS. 2 to 4 are cross-sectional plan views showing the flow directions of outdoor air and indoor air in winter, summer, and intermediate seasons, respectively.

In each of the above figures, the reference numeral 10 indicates a solar heat collector unit, and the reference numeral 20 indicates an air conditioner unit.
The solar heat collector unit 10 is attached to the outer wall of a building, and has a heat collector plate 12 inside a transparent plate 11.
is placed. An outside air passage 14 is formed between the heat collecting plate 12 and the heat insulating material 53. 15
are current plates provided at both the upper and lower ends of the outside air passage 14.

The lower end of this outside air passage 14 is connected to an outside air intake 16 for heating which opens on the outer wall of the building, and an air intake 18 is provided at the upper end.

On the indoor side of the heat insulating material 53, an air supply passage 22 and an exhaust passage 26 for supplying outdoor air to the air conditioner unit (to be described later) during and intermediate times are provided via the heat insulating material 52. The lower end is connected to an outside air intake 23 for cooling and intermediate times that opens on the outer wall surface, the upper end is provided with an inlet 24, and an exhaust passage 26.
The lower end of the outside air outlet 27 similarly opens on the outer wall surface.
An exhaust port 28 is provided at the upper end.

The air conditioner unit 20 has a heat insulating material 51 inside the air conditioning chamber 21 on the indoor side of the air supply passage 22 and the exhaust passage 26.
The outdoor unit 30 and the indoor unit 32 are separated via a damper unit 35. The outdoor unit 30 is equipped with a blower 31, an outdoor heat exchanger and a refrigerant compressor (not shown), and the indoor unit 32 includes:
A blower 33 and an indoor heat exchanger (not shown) are provided, and the refrigerant compressor and the outdoor and indoor heat exchangers are connected to each other by refrigerant pipes (not shown).

A switching damper 37 provided in a damper unit 35 is attached to the inlet 18 of the outside air passage 14 of the heat collector 10 and the inlet 24 of the air supply passage 22. Either one is opened to introduce outdoor air into the outdoor unit 30.

Further, the damper unit 35 is provided with a switching damper 38 that switches the flow path between outdoor air and indoor air to cause outdoor air to flow to the indoor unit 32 and indoor air to flow to the outdoor unit 30. A bypass passage 39 is provided separately from the switching damper 38, and a portion of the outdoor air is introduced directly into the outdoor unit 31 through the bypass passage 39.

The damper unit 35 is provided with a return air port 40 and a filter 42 for indoor exhaust.

The indoor unit 32 includes a damper unit 3.
An air supply port 44 is provided for supplying the recirculated air or outdoor air introduced through the filter 42 of No. 5 into the room.

Next, the operation cycle of the heating/cooling device having the above configuration will be explained separately for the winter season, summer season, and intermediate season.

(1) Operation cycle during heating in winter (see Figure 2) Operate the switching damper 37 to open the inlet 18 of the outside air passage 14 of the heat collector 10, and open the inlet 24 of the air supply passage 22. will be closed. Switching damper 3
8 operates so that the outdoor air taken in from the outside air passage 14 is introduced into the outdoor unit 30 side.

The outdoor air taken into the outdoor air passage 14 of the heat collector 10 from the outdoor air intake 16 for heating is heated by solar heat, and is sent to the air conditioned room 2 from the air inlet 18.
Enter within 1. Air conditioner unit 2 during heating operation
The heat exchanger of the outdoor unit 30 of No. 0 is an evaporator,
The heat exchanger of the indoor unit 32 functions as a condenser, and the blower 3 of the outdoor unit 30 acts as a condenser.
The high-temperature outdoor air sucked in by the outdoor heat exchanger 1 is cooled down by heat recovery by the outdoor heat exchanger, passes through the exhaust port 28, passes through the exhaust passage 26, and is discharged from the outside air outlet 27. The heat recovered by the outdoor heat exchanger is released from the indoor heat exchanger via the refrigerant, and is sucked in through the filter 42 from the return air port 40 of the damper unit 35 by the blower 33 of the indoor unit 32. The heated indoor air is heated and blown out and circulated indoors from an air supply port 44.

A part of the outdoor air taken in from the outside air passage 14 is introduced into the indoor unit 32 from the passage 54 of the damper unit 35 through the filter 42, and is used as indoor air.

(2) Operation cycle during cooling in summer (see Figure 3) Operate the switching damper 37 to
The air inlet 24 of the heat collector 10 is opened, and the air inlet 18 of the outside air passage 14 of the heat collector 10 is closed. Switching damper 3
8 is operated in the same manner as in the case of heating, so that the outdoor air taken in from the air supply passage 22 is introduced into the outdoor unit 30 side.

Outdoor air is taken into the air supply passage 22 from the outside air intake 23 for cooling without passing through the outside air passage 14 of the heat collector 10, and enters the air conditioned room 21 from the air intake 24. During cooling operation, the heat exchanger of the outdoor unit 30 of the air conditioner unit 20 functions as a condenser, and the heat exchanger of the indoor unit 32 functions as an evaporator. Indoor air circulated by the blower 33 of the indoor unit 32 has its heat removed by the indoor heat exchanger, becomes low-temperature air, and circulates indoors. The heat extracted from the indoor air by the indoor heat exchanger is exchanged with the outdoor air sucked in by the blower 31 of the outdoor unit 30 in the outdoor heat exchanger via the refrigerant, and becomes high temperature. Thereafter, the air passes through the exhaust port 28, the exhaust passage 26, and is discharged from the outside air exhaust port 27.

A part of the outdoor air taken in from the air supply passage 22 is introduced into the indoor unit 32 from the passage 54 of the damper unit 35 through the filter 42, and is used as indoor air.

(3) Operating cycle during outside air cooling (ventilation) in the intermediate period (see Figure 4) The switching damper 37 is operated in the same manner as during cooling to open the inlet 24 of the air supply passage 22, The air inlet 18 of the outside air passage 14 of the heat collector 10 is closed. The switching damper 38 is connected to the air supply passage 22
The operation is performed so that the outdoor air taken in from the indoor unit 32 is introduced into the indoor unit 32 side.

The air conditioner unit 20 is an outdoor unit 30.
The blower 31 of the indoor unit 32 and the blower 3 of the indoor unit 32
3 is operated, and the operation of the refrigerant compressor is stopped.

As in the case of cooling, outdoor air is taken into the air supply passage 22 from the outside air intake 23 for cooling, and enters the air conditioned room 21 from the air intake 24. This outdoor air is supplied to the blower 3 of the indoor unit 32.
3, and is supplied into the room from an air supply port 44 through a filter 42. Indoor air is sucked in from the return air port 40 of the damper unit 35 by the blower 31 of the outdoor unit 30, passes through the exhaust port 28 together with the outdoor air introduced from the bypass passage 39, passes through the exhaust passage 26, and then exits to the outside air exhaust port. It is discharged from 27.

The outdoor air can be taken into the air conditioned room 21 from the outside air passage 14 of the heat collector 10 by reversing the operation of the switching damper 37, if necessary.

FIGS. 5a to 5e each show a modification of the present invention, in which the solar collector unit 1
0, outdoor unit 30, indoor unit 3
2. This is a case where the damper unit 35, filter unit 42 and total heat exchanger unit 60 are combined according to the purpose of use of the building.

FIG. 5a shows an outdoor unit 30, an indoor unit 32, and a fixed damper unit 35.
FIG. 5b is a heating and cooling system that combines
Fig. 5c is a system in which the damper unit 35 in the combination shown in Fig. 5b is switched for heating, cooling, and outside air cooling.
5d shows a system in which a total heat exchanger unit 60 is added to the combination shown in FIG. 5c, and FIG.
A system in which a solar collector unit 10 is added to the combination shown in FIG. d is shown.

As is clear from the above explanation, this invention installs a solar heat collector on the outdoor side of a building, and on the indoor side, a heat pump type outdoor unit and an indoor unit are arranged on both sides via a damper unit. A switching damper provided in the damper unit is operated to switch between outdoor air and indoor air during the winter, summer, and intermediate seasons. Therefore, according to this invention,
Since the outdoor air heated by the solar collector can be used as the heat source for the heat pump during heating, the efficiency of the heat pump can be greatly improved without using auxiliary means such as an electric heater.

In addition, since this invention directly uses outside air heated by solar heat as the heat source for the heat pump, there is no need to provide a heat storage tank like in conventional hot water type solar collectors, resulting in a device with extremely low heat loss. be able to.

Further, in this invention, since the solar heat collector, the air supply passage, and the exhaust passage are arranged adjacent to the outer wall surface of the building, the heating and cooling load can be reduced.

Further, according to the present invention, heating and cooling can be performed in the winter and summer and outdoor air cooling in the intermediate period by simply operating the switching damper in the damper unit, so a heating and cooling system that is easy to maintain and manage can be obtained. It will be done.

[Brief explanation of the drawing]

FIG. 1 is a vertical side view showing an embodiment of the present invention, FIG. 2 a is a cross-sectional plan view in winter, and FIGS. 2 b and c are cross sections taken along lines A-A and B-B in FIG. 2 a, respectively. Figure 3a is a cross-sectional plan view in summer, Figures 3b and c are A of Figure 3a, respectively.
-A and B-B line sectional views; Fig. 4a is a cross-sectional plan view at the intermediate stage; Figs. 4b and c are respectively A-A and B-B sectional views of Fig. 4a; Figures a through 5e are cross-sectional plan views showing modified examples of the invention, respectively. In the figure, numeral 10 is a solar heat collector, 14 is an outside air passage of the solar heat collector, 20 is an air conditioner unit, 30
is an outdoor unit, 32 is an indoor unit, 35
22 and 26 are the air supply passage and exhaust passage of the outdoor unit, respectively, and 37 and 38 are the damper unit.
are respectively switching dampers.

Claims (1)

[Claims] 1. A heat collector that heats the outside air using solar heat is installed on the outer wall of a building, and on the indoor side of the heat collector, an air conditioner unit consisting of an outdoor unit and an indoor unit is installed with a damper unit interposed in the middle. The air supply passage and the exhaust passage of the outdoor unit are provided between the heat collector and the air conditioner unit, and either the outside air passage of the heat collector or the air supply passage of the outdoor unit is set to the open side. The damper unit is provided with a switching damper that switches to take in outdoor air, and a switching damper that switches the flow paths of outdoor air and indoor air and connects the respective flow paths to the indoor unit and the outdoor unit. An air source heat pump type heating and cooling device characterized by the following.