JPS63263334A - Air conditioner - Google Patents

Abstract

PURPOSE:To permit the cooling of a simple cold storage while effecting the air-conditioning of a kichen or a dining room, by a method wherein a main body is divided into an indoor machine side and an outdoor machine side and a cold storage, defined by an insulating partitioning plate, is provided at the side of the main body while a heat exchanger is provided in the indoor machine side and the heat exchanger as well as a compressor are provided in the outdoor machine side. CONSTITUTION:Upon cooling a room, a second solenoid valve 33 is closed, a first solenoid valve 26 is opened, refrigerant, condensed by an outdoor heat exchanger 9, is reduced by an electric expansion valve 23 and flows through an indoor heat exchanger 13 whereby a kitchen or the like is cooled. On the other hand, the reduced refrigerant, which flows into a branch pipe 25, flows into a capillary tube 27 in a cold storage through the valve 20 and the pressure thereof is reduced in the tube 27, then, cools the cold storage 19 by the latent heat of evaporation generated in an indoor evaporation device 28. Upon heating the room, the valve 26 is closed but the valve 33 is opened, the refrigerant, passed through the compressor 10 and a four-way valve 22, is condensed by the heat exchanger 13, warm-air is blown off through a blow-off port 14 to heat the room, and the cold storage 19 is cooled by an outdoor evaporating device 35. When air conditioning is not necessitated, the blow-off port 14 is closed, an underfloor blow-off port 14a is opened and only the cold storage is cooled and used.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention mainly relates to air conditioners for dining rooms, kitchens, etc.

BACKGROUND ART Traditionally, air conditioners in houses and other places mainly use living rooms and living rooms such as Japanese-style rooms to be air-conditioned using multi-room separate air conditioners. That is, multiple indoor units were connected to one outdoor unit through refrigerant piping, and the multiple indoor units air-conditioned major indoor areas such as the living room, bedroom, and children's room. . In addition, as an air conditioning method that does not use a multi-room separate air conditioner, an outdoor unit is installed for each room such as the living room or bedroom, and this outdoor unit and the indoor unit installed in the room are connected via refrigerant piping to perform air conditioning. This was the method.

Problems to be Solved by the Invention This conventional configuration is good for air-conditioning each main room, but in kitchens, for example, ventilation fans are installed to exhaust steam generated during cooking. , Air conditioning in the kitchen has a very large load. Particularly during summer cooling, indoor temperatures become high due to the use of gas staples, etc. Furthermore, during winter heating, the air in the kitchen is exhausted by the kitchen ventilation fan, which causes problems such as the temperature in the kitchen being low and giving a cold feeling. In addition, it is possible to install indoor units in kitchens and dining rooms similar to those in living rooms and bedrooms, but there is a strong tendency to not install them in kitchens and dining rooms that are rarely used, and therefore air conditioning in kitchens and dining rooms is ignored. The problem was that there were many cases.

The present invention solves these problems, and aims to provide an air conditioner that air-conditions a kitchen or a dining room and has a simple cold storage.

Means for Solving the Problem In order to solve this problem, the present invention provides an indoor air outlet and an underfloor air outlet on the indoor unit side of the main body of the air conditioner, which is provided through the wall surface, and a damper that opens the main body, an indoor heat exchanger, and an indoor blower, and an outdoor heat exchanger, an outdoor blower, and a compressor on the outdoor unit side, and a cold storage compartment partitioned by a heat insulating partition plate on the side of the main body. An indoor evaporator with refrigerant pipes branching from between the indoor heat exchanger and the electric expansion valve and a refrigerant pipe branching from between the outdoor heat exchanger and the electric expansion valve are installed in this cold storage. It is equipped with an outdoor evaporator.

With this configuration, during cooling, the indoor fan is operated to cool the room (kitchen) with the evaporative refrigerant that is evaporated in the indoor heat exchanger. An indoor evaporator cools the refrigerator, while an indoor heat exchanger that acts as a condenser heats the room (kitchen) during heating. In addition, indoor air conditioning is not required during the intermediate period when the cold storage is cooled by the evaporator.
The damper installed on the indoor unit side is opened under the floor to avoid indoor air conditioning.

EXAMPLE An example of the present invention will be explained below based on FIGS. 1 to 3. In FIG. 1, a wall 1 of a house has a bay window 2
A main body 3 of a heat pump type air conditioner is installed below the bay window 2, passing through the wall 1.

The inside of this main body 3 is divided into an outdoor unit side 6 and an indoor unit side 6 by a partition plate 4, and the outdoor unit side 6 is formed with an outdoor suction lower and an outdoor air outlet 1o that blows out to the outdoors, and an outdoor blower 8. An outdoor heat exchanger 9 that functions as a condenser during cooling and an evaporator during heating, and a compressor 16 are provided.

On the other hand, on the guide machine side 6, an indoor suction port 11 is formed to face the interior of the room, and an indoor blower 12 and an indoor heat exchanger 13 which function as an evaporator during cooling and a condenser during heating are provided. Furthermore, an indoor air outlet 14 formed toward the indoor side and an underfloor air outlet 14a configured to blow air outward from under the floor are provided. It is equipped with a damper 17 that opens. Further, a ventilation fan 16 for exhausting steam is provided above the wall 1, that is, at the location of a gas staple (not shown) in the kitchen.

FIG. 2 is a front view of the inside of the kitchen. Below the bay window 2 there is an indoor air inlet 11 of the main body 3 and an indoor air outlet 14 which blows air out from the feet. On the side of the main body 3 A cold storage 19 partitioned by a heat insulating partition plate 17 and provided with a door 18 that opens and closes forward from the indoor side is formed integrally with the main body 3, and is opened and closed by a handle 20.

FIG. 3 shows a refrigeration cycle constructed between the main body 3 and the cold storage box 19. During cooling, this refrigeration cycle is operated by the inverter compressor 16 as shown by the solid arrow.
After exiting the discharge pipe 21, the pressure is reduced by the four-way valve 22, the outdoor heat exchanger 9, and the electric expansion valve 23 serving as an expansion mechanism, and the pressure is reduced by the indoor heat exchanger 13. The refrigerant is circulated through the four-way valve 22 and the accumulator 24. On the way, a first solenoid valve 26 is provided in a branch pipe 26 that branches from between the electric expansion valve 23 and the indoor heat exchanger 13, and is opened during cooling and opened during heating. is closed, and during cooling, part of the refrigerant that has passed through the electric expansion valve 23 flows into the heat insulating partition plate 17.
The first capillary tube 27 inside the cold storage 19 penetrates through the
It is equipped with an indoor evaporator 28 formed by arranging a refrigerant pipe so that the refrigerant passes through the four-way valve 2 from the pipe 29 through the check valve 30.
Returning to step 2, the temperature inside the cold storage 19 is lowered by the evaporative refrigerant in the indoor evaporator 28, and items such as vegetables and fruits that need to be kept cold at low temperatures are stored therein.

Next, during heating, as shown by the dotted arrow, the compressor 6
The refrigerant that has exited the discharge pipe 21 flows from the four-way valve 22 through the pipe 31, passes through the indoor heat exchanger 13, and flows to the electric expansion valve 23. At this time, the first solenoid valve 2e is in a closing operation. Although some of the refrigerant flows from the electric expansion valve 23 to the outdoor heat exchanger 9, since the second solenoid valve 33 provided in the branch pipe 32 is open, the second solenoid valve 33 flows into the heat insulating partition plate 17. It passes through the capillary tube 34 in the cold storage 19, passes through the outdoor evaporator 36, and returns to the four-way valve 22 via the check valve 36. Naturally, most of the refrigerant evaporates in the outdoor heat exchanger 9 and the four-way valve 22. It returns to the compressor 16 via the accumulator 24.

In the above configuration, the refrigerator 19 stores items throughout the year while heating the room in the winter and cooling the room in the summer. In other words, the damper 17 is connected to the indoor air outlet 1.
4 is open and during cooling, the second solenoid valve 33 is closed and the first solenoid valve 26 is opened, and the refrigerant condensed in the outdoor heat exchanger 9 is depressurized by the electric expansion valve 23, and the refrigerant is The main heat flows to the indoor heat exchanger 13 to cool the room such as the kitchen. On the other hand, a part of the reduced pressure refrigerant flowing into the branch pipe 26 passes through the first electromagnetic valve 26 and is further reduced in pressure in the capillary tube 27 inside the cold storage 19, and cools the inside of the cold storage 19 with the latent heat of evaporation in the indoor evaporator 28. Therefore, during cooling, the indoor evaporator 28 cools the refrigerator.

Next, during heating, the damper 17 leaves the indoor air outlet 14 open, as during cooling, the first solenoid valve 26 closes, and the second solenoid valve 33 opens, and the compressor 16
．． The refrigerant that exits the four-way valve 22 is condensed in the indoor heat exchanger 13-, and this latent heat of condensation is used to cool the indoor air outlet 14 provided in the kitchen.
In addition, hot air is blown toward the position of the feet to heat the area, and a part of the refrigerant whose pressure is reduced by the electric expansion valve 23 passes through the second electromagnetic valve 33 to the capillary tube 3 in the cold storage 19.
4, the refrigerant is further depressurized and flows through the outdoor evaporator 35, where it cools the cold storage 19, and the refrigerant passes through the check valve 36 and enters the four-way valve 2.
Return to 2. The main refrigerant flows from the electric expansion valve 23 to the outdoor heat exchanger 9, and then flows through the four-way valve 22. Pressure.

This becomes a flow path returning to the compressor 16.

In addition, during periods when there is no need for air conditioning such as cooling or heating the room, the indoor air outlet 14 is closed and the underfloor air outlet 14a is opened, so that cold air in summer and warm air in winter are blown out from under the floor. They are picked up outside through the exit 14a and used only in the cold storage. Furthermore, when the air conditioner is not used for a long time in the kitchen etc., the damper 17 can be connected to the indoor air outlet 1.
4 side and closed, the underfloor outlet 14a is opened and the air conditioner is operated to maintain the temperature inside the cold storage 19. In short, the damper 17 can be switched to either one depending on the convenience of use.

In this embodiment, the main body of the air conditioner that penetrates the wall 1 is divided into an outdoor unit side and an indoor unit side, and the indoor unit side is located in the kitchen 9.
The cold storage 19 is heated and cooled by facing into a room such as a dining room, and an indoor evaporator and an outdoor evaporator are installed by passing refrigerant pipes through a heat insulating partition plate into the cold storage 19 that is integrated with the main body. , cooling is done during both summer and mid-season. In this embodiment, the cold storage box 19 is integrated with the main body 3, but the cold storage box 19 may be separated, and the refrigerant piping configuration in this case may be the same as that of the previous example.

Effects of the Invention As is clear from the description of the embodiments described above, the present invention provides a main body of an air conditioner that penetrates through a wall and is provided with a cold storage compartment partitioned by a heat insulating partition plate, and an indoor heat exchanger and an electric expansion unit are installed in the cold storage compartment. This is because an indoor evaporator is provided with a refrigerant pipe that branches from between the valve and an outdoor evaporator that has a refrigerant pipe that branches from between the outdoor heat exchanger and the electric expansion valve. The air conditioning in the kitchen, which has a particularly heavy load, works well from the feet even when the ventilation fan installed above the gas table is operated, and cooks rarely feel cold from their feet during the winter, and they are less likely to feel cold when heating. You can feel the warm air, and even when the air conditioner is being cooled, the discomfort caused by the warm air will be reduced as the indoor temperature rises due to cooking. Furthermore, a cold storage box is installed integrally with the main body of the air conditioner to store vegetables other than frozen foods. It is also useful for keeping foods that do not require frozen storage, such as fruits, cold, and has the effect of making them easier to use.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the installation of an air conditioner according to an embodiment of the present invention, FIG. 2 is a front configuration diagram of the air conditioner, and FIG. 3 is a refrigeration cycle diagram of the air conditioner. 1...Wall, 3...Body, 4...
・Partition plate, 6...Outdoor unit side, 6...Indoor unit side, 8...Outdoor blower, 9...Outdoor heat exchanger, 12. ...Indoor blower, 13...
... Indoor heat exchanger, 16 ... Compressor, 17.
...Insulation partition plate, 19 ...Cold box, 23
...Electric expansion valve, 28...Indoor evaporator, 36...Outdoor evaporator.

Claims (1)

[Claims] A main body of an air conditioner is provided to penetrate through a wall surface, the main body is divided into an indoor unit side and an outdoor unit side by a partition plate, and an indoor air outlet and an underfloor air outlet are provided on the indoor unit side,
A damper that opens either side, an indoor heat exchanger, and an indoor blower are provided, an outdoor heat exchanger, an outdoor blower, and a compressor are provided on the outdoor unit side, and the main body is partitioned by a heat insulating partition plate on the side. A cold storage is provided, and in this cold storage, an indoor evaporation device is installed, in which refrigerant piping branches from between the indoor heat exchanger and the expansion valve, and a refrigerant piping branches from between the outdoor heat exchanger and the expansion valve. An air conditioner equipped with an outdoor evaporator.