JPS61213529A - Air-conditioning machine - Google Patents

Abstract

PURPOSE:To obtain energy saving effect by a method wherein two sheets of interlocking shutters are provided at the upper and lower parts of a glass, faced to the outdoor side of double glass windows equipped with a solar heat collecting blind, so that a space between two sheets of glasses becomes a part of outdoor air flow path. CONSTITUTION:The double glass windows 17a, 17b, equipped with the solar heat collecting blind 18, are provided at the outdoor air suction side of a case 11 accommodating an air-cooled heat pump type refrigerating circuit and the space between two sheets of glasses of the double glass windows is utilized as a part of the outdoor air flow path during room heating operation by the opening and closing of two sheets of interlocking shutters. As a result, atmosphere of low temperature may be heated by utilizing the solar heat and high room heating capacity may be developed without using expensive energy to increase evaporating temperature to increase the room heating capacity whereby the energy saving effect may be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an air conditioner equipped with an air-cooled heat pump type refrigeration circuit.

BACKGROUND OF THE INVENTION In general, air-cooled heat pump type air conditioners suffer from a decrease in heating capacity as the outside air temperature decreases during heating operation, making it impossible to obtain a sufficient heating effect. Therefore, there has been a demand for an air conditioner that has high heating capacity even when the outside temperature is low.

For this reason, conventional air-cooled heat pump air conditioners employ a refrigerant heating method using an electric heater to increase the evaporation temperature of the outdoor heat exchanger during heating operation, as shown in Figure 3. was.

The configuration will be explained with reference to FIG. 3. In the case 1 of the air conditioner, there is an outdoor heat exchanger 2, an outdoor blower 3, which takes in outside air and discharges it toward the outdoor heat exchanger 2. An electric heater 4 is provided to heat the outside air discharged by the outdoor blower 3. In addition, 6 in the figure is an indoor heat converter, 6
1 is an indoor blower, 7 is a compressor that pressurizes the refrigerant, and 8 is a separator that separates the outdoors from the indoors. A case 1 of the air conditioner has an integral structure that is provided through a wall 9 of a building. 10 is a window glass.

Problems to be Solved by the Invention In such a conventional configuration, since the electric heater 4 is used to increase the evaporation temperature of the outdoor heat exchanger 2, which serves as an evaporator during heating operation, the heat pump The problem was that it required power for operation (outside of the outdoor blower input and indoor blower input and compressor input power), and lacked energy efficiency.

The present invention solves these problems by reducing the evaporation temperature during heating without relying on refrigerant heating methods that use expensive energy such as electric heaters, and achieves high heating performance even at low outside temperatures. The purpose of this invention is to provide an air conditioner that exhibits the following.

Means for Solving the Problem In order to solve this problem, the present invention provides a double-glazed window equipped with a solar heat collection blind on the outdoor air intake side of a case containing an air-cooled heat pump type refrigeration circuit. By opening and closing two interlocking shutters provided at the top and bottom of the glass facing the outside of the double-paned window, the space between the two glasses of the double-paned window becomes part of the outdoor air flow path during heating operation. It is designed so that it becomes a section.

With this configuration, during heating operation, outdoor air flows through the inlet opened by the shutter at the top of the double-paned window, and after passing between the double-paned windows equipped with heat collection blinds. , an outdoor fan, and an outdoor heat exchanger for heat exchange. When outdoor air passes between the double-glazed windows with heat collecting blinds, it exchanges heat with the heat collecting blinds heated by solar heat, and immediately before the outdoor heat exchanger, the actual outdoor air Since the air has a high temperature, it is possible to prevent the refrigerant evaporation temperature from decreasing even when the outside temperature is low, and high heating capacity can be achieved. Also, during cooling operation, the outdoor heat exchanger functions as a condenser, so using the outside air heated by the heat collection blind at this time will raise the condensing temperature, so the condensing pressure will increase during cooling operation. This is a problem because the power consumption increases and power consumption also increases. Therefore, during cooling operation, the interlocking shutters provided at the top and bottom of the glass facing the outside of the double-glazed window close the outside air intake port at the top of the glass and open the outside air intake port provided at the bottom. The outside air is drawn directly into the outdoor blower without passing through the double-glazed windows, forming an air flow path similar to the cooling operation of a conventional air conditioner.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, reference numeral 11 indicates a case of an air conditioner that is installed through the wall of a building, and inside it is an outdoor heat exchanger 12 and an outdoor fan 13 for forming a refrigeration circuit. Indoor heat exchanger 14 and indoor fan 16. and a compressor 16 that pressurizes the refrigerant. Above the outdoor blower 13, there are two double-glazed windows 178.17b spaced apart, which serve as outdoor air flow paths during heating operation. A heat collecting blind 18 painted with An opening 20 is provided in the upper part of the glass window 17a facing outdoors between it and the building structure 19 so as to serve as an inlet for outdoor air. At the bottom, two shutters 22 & 22b are provided which can be slid up and down in conjunction with each other via a connecting rod 21. As shown in FIG. The opening 20 is kept open, and the opening 23 provided close to the outdoor fan 13 is closed. During cooling operation, the shutter 22 as 22b is maintained in the broken line state, the opening 2° is closed and the opening 23 is open.

In the above configuration, when the heating operation is performed during a period when the outside air temperature is low, the outdoor air is sucked in by the outdoor side blower 13 through the opening 20 opened at the top of the glass window 17 & the double glass window equipped with the heat collecting blind 18. After passing between 17a and 17b, heat is exchanged in the outdoor heat exchanger 12. In the gap where outdoor air passes between the double glass windows 1)a and 17b, heat exchange is performed with the heat collection blind 18 heated by solar heat, and the temperature of the outdoor air is changed immediately before the outdoor heat exchanger. Since the air has a higher temperature, it is possible to prevent the refrigerant evaporation temperature from decreasing even when the outside temperature is low, and as a result, high heating capacity can be achieved. Furthermore, during cooling operation, the outdoor heat exchanger 12 functions as a condenser, so using outside air heated by solar heat at this time will raise the condensing temperature, resulting in an increase in condensing pressure and consumption. This is a problem because the power increases. Therefore, during cooling operation, the shutters 22a and 22b close the opening 20 at the top of the glass window 17a, and
By opening the lower opening 23, outside air is drawn directly into the outdoor blower without passing through the double glass windows 17a and 17b, resulting in the cooling operation of the conventional air conditioner shown in FIG. This results in the formation of an air flow path similar to the above.

As described above, in this embodiment, the drawback that the heating capacity decreases as the outside temperature decreases, which is a characteristic of air-cooled heat pump heating, is solved by passing outdoor air between the double glass windows 17a and 17b and heating it by solar heat. Heat collection blind 1
8 and then blowing air into the outdoor heat exchanger 12. This eliminates the need to use expensive energy to raise the evaporation temperature, which is required in the past, and saves energy. It is possible to demonstrate high heating capacity even at outside temperatures.0 Effects of the InventionAs is clear from the description of the embodiments above, the present invention provides a heat pump cooling circuit on the outdoor suction side of a case incorporating an air-cooled heat pump type refrigeration circuit. A double-glazed window with a heat collection blind is installed in between, and the double-glazed window is opened and closed during heating operation by opening and closing two interlocking shutters provided at the top and bottom of the glass facing the outside of the double-glazed window. By forming the space between two pieces of glass in a window to become part of the outdoor air flow path, low-temperature outside air can be heated using solar heat, and heating capacity is increased by increasing the evaporation temperature using expensive energy. It is possible to demonstrate high heating capacity without raising the temperature, and it also has an energy saving effect, which has great industrial effects.

[Brief explanation of drawings]

Fig. 1 is a perspective view (partial partial view) of an air conditioner installed in a building according to an embodiment of the present invention, Fig. 2 is a side sectional view of the same,
FIG. 3 is a side sectional view showing a conventional air conditioner. 11... Case, 17a, 17b...
Double glass window, 18... Heat collection blind, 21
a, 21 b...Shutter. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure (2---'if outer yuroki number f5---... next (7a, f7b---double plus house 2m 14-11 shag figure 2 figure 3

Claims (1)

[Claims] A double-glazed window equipped with solar heat collection blinds is provided on the outdoor air intake side of the case incorporating an air-cooled heat pump type refrigeration circuit, and a double-glazed window equipped with solar heat collection blinds is provided at the top and bottom of the glass facing outdoors of the double-glazed window. An air conditioner in which the gap between the two glasses of the double-glazed window becomes part of the outdoor air flow path during heating operation by opening and closing two interlocking shutters.