JPS5815697B2 - Heat pump air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air conditioner, and particularly to an air source heat pump type air conditioner.

Generally, air source heat pump type air conditioners have one of the evaporator or condenser that makes up the refrigeration cycle installed inside the outdoor unit, the other installed inside the indoor unit, and the two are connected by refrigerant piping. By switching the direction, the indoor unit can perform heating and cooling operations.

However, if this type of air conditioner is to be used in a large-scale building, a large air conditioner unit must be installed outside the building, creating space problems and requiring long refrigerant piping lines. The amount of refrigerant is also large, and maintenance and inspection work is also time-consuming.

In addition, in the outdoor unit of a conventional heat pump type air conditioner, only outside air acts on the evaporator or condenser, so the efficiency of the heat pump decreases, especially at low temperatures in winter or high temperatures in summer, resulting in the desired heating or cooling capacity. You may not be able to get it.

The present invention has been made in view of the above points, and includes an evaporator and a condenser housed in an air conditioner body configured as a single unit, which facilitates maintenance inspection and assembly and installation work.
The company also aims to provide air conditioners with high heat pump efficiency.

Therefore, in the present invention, the air conditioner housing is divided into two chambers, a first and second chamber, by a partition wall, each chamber is provided with an outside air intake and an indoor air intake, and the first chamber is provided with an exhaust blower and A heat exchanger for outdoor exhaust air is provided, a supply air blower and a heat exchanger for indoor blown air are provided in the second chamber, and the first,
The heat exchangers in the second chamber are connected by refrigerant piping to form a refrigeration cycle together with a compressor and a four-way valve provided on the refrigerant piping.

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a perspective view of a heat pump type air conditioner according to the present invention, and FIGS.
It is a block diagram of the inside of a chamber and a second chamber.

The air conditioner housing 1 is divided into a first chamber 3 and a second chamber 4 by a partition wall 2.
It is divided into two rooms.

The first chamber 3 is provided with an outside air intake 34 and an indoor air intake 35 as shown in FIG. is connected to an indoor air exhaust duct (not shown) via a filter 19.

The outside air intake port 34 and the indoor air intake port 35 are each provided with flow control dampers 9 and 11, and the dampers 9 and 11 are connected to each other by a link mechanism 20 and the opening degree is adjusted by the control motor 7.

A heat exchanger 5 is installed in the center of the first chamber 3, and a filter 18 is installed on the air intake side of the heat exchanger 5.

An exhaust blower 13 is installed at the end of the first chamber 3 opposite to the outside air intake side.

15 is a compressor. As shown in FIG. 3, the second chamber 4 is provided with an outside air intake 32 and an indoor air intake 33. Outside air is introduced into the outside air intake 32 through a filter 17, and An indoor air exhaust duct (not shown) is connected to the filter 19 via a filter 19 .

The outside air intake port 32 and the indoor air intake port 33 are provided with flow rate control dampers 10 and 12, respectively.
2 are connected to each other by a link mechanism 20 and a control motor 8
The opening is adjusted by

A heat exchanger 6 is installed in the center of the second chamber 4, and a filter 1β is installed on the air intake side of the heat exchanger 6.

A blower 14 for supplying air into the room is installed at the end of the second chamber 4 opposite to the outside air intake side.

16 is a control panel.

The space between each voice converter 5 and 6 in the first chamber 3 and second chamber 4 is
As shown in Fig. 5, they are connected by a refrigerant pipe 40, and together with the four-way valve 31 and the compressor 15 provided on the refrigerant pipe 40, constitute a refrigeration cycle.

30 indicates a room to be air-conditioned. FIG. 4 shows a winter refrigeration cycle, and FIG. 5 shows a summer refrigeration cycle.

Therefore, in FIG. 4, the heat exchanger 5 is an evaporator, a heat exchanger
The vessel 6 becomes a condenser, and in Fig. 5, the organ exchanger 5
is a condenser, and the heat exchanger 6 is an evaporator.

Outdoor air (arrow E) and indoor air (arrow C) act on the outdoor exhaust air heat exchanger 5 to exchange heat, and then the air is discharged as shown by arrow F by the exhaust blower 13.

Therefore, in the winter, the air acting on the heat exchanger 5 becomes hotter than in the case of only outside air, increasing the evaporation effect,
In the summer, on the other hand, the air is cooler than if only outside air was used, increasing the condensation effect.

Each damper 10.11 is adjusted so that the indoor air discharge amount C is equal to the outdoor air intake amount into the room, and the damper 10.
, 12 are interlocked by a link mechanism 20 so that the sum of the outside air amount and the return air amount B becomes a predetermined air supply amount A, and the dampers 9 and 11 are operated so that the sum of the outside air amount E and the indoor air discharge amount C becomes a predetermined amount. It is desirable that the air volume be controlled in conjunction with each other by the link mechanism 20 so that the air displacement amount is F.

In the above-mentioned air source heat pump type air conditioner, the evaporator and condenser that make up the refrigeration cycle are
The two heat exchangers are housed in one housing with a partition wall separating them, forming the entire air conditioner as one unit, so there is no need to install an outdoor unit outside the building as in the past (installation work is required). This reduces labor and eases maintenance and inspection work, and provides an air conditioner with a high coefficient of performance for heat pumps and a large heating and cooling capacity.

[Brief explanation of drawings]

FIG. 1 is a schematic perspective view of a pump-saving air conditioner according to the present invention, FIG. 2 is a configuration diagram of a section taken along ■--■ in FIG. 1, and FIG. 3 is a section taken along ■--■ in FIG. 1. FIGS. 4 and 5 are piping system diagrams showing the winter and summer refrigeration cycles of the heat pump air conditioner according to the present invention. DESCRIPTION OF SYMBOLS 1... Air conditioner housing, 2 gastric partition walls, 3... 1st chamber, 4... 2nd chamber, 5, 6... Heat exchanger, 9, 10, 11 degrees 12... Damper,
13...Exhaust blower, 14...Air supply blower, 15...Compressor, 20 link mechanism, 31...Four-way valve, 32.34...Outside air intake, 33° 35...Indoor air intake, 40...Refrigerant piping .

Claims (1)

[Scope of Claims] 1. The air conditioner housing is separated from the first air conditioner by a partition wall. The second chamber is divided into two chambers, each chamber is provided with an outside air intake and an indoor air intake, the first chamber is equipped with an exhaust blower and a heat exchanger for outdoor exhaust air, and the second chamber is equipped with an air supply. Install an air blower and a heat exchanger for the indoor air. A heat pump type air conditioner in which the heat exchangers in the first and second chambers are connected by a refrigerant pipe, and together with a compressor and a four-way valve provided on the refrigerant pipe, constitute a refrigeration cycle.