JPS59138865A - Air conditioner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air-conditioning device having a refrigeration cycle.

Traditional heating and cooling equipment? i As shown in Figures 1 and 2, an indoor unit (3) containing an indoor heat exchanger (1) and an indoor fan (2) is installed above the wall (5) of the entire room (4). , a four-way valve (6), a compression TA (7), an outdoor heat exchanger (8), and an outdoor blower αQ that sequentially connects the throttle resistor (9)' and blows air to the outdoor heat exchanger (8). Tube aZt to machine aυ
I was supposed to connect via

Conventional air conditioning and heating systems are configured as described above, and during heating,
By switching the four-way valve (6), the cold Kk is compressed by 1% (7), the four-way valve (6), the room/internal heat exchanger (
1), the flow passes through the throttle resistor (9), the outdoor heat exchanger (8), and the four-way valve (6) and returns to the compressor (7), causing the indoor heat exchanger (1) to act as a condenser. , outdoor heat exchanger (8
) acts as an evaporator, and the room is heated by operating the indoor blower (2) at full capacity. However, by heating in this way, the temperature distribution in the room is
As shown in the figure, the closer you are to the ceiling, the higher the temperature, and the closer you are to the floor, the lower the temperature. However, it has the disadvantage of high heat loss. For cooling, by switching the four-way valve (6) and distributing the refrigerant in the opposite direction to the heating mode, the indoor heat exchanger (1) acts as an evaporator, and the outdoor heat exchanger (
8] acts as a condenser. This is an indoor blower (2)
This invention was developed in view of the above-mentioned drawbacks, and uses the heat from the warmer upper part of the room to cool the upper part of the room and heat the lower part of the room, making it comfortable and comfortable. The purpose of this invention is to provide a heating and cooling system with low heat loss.

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 4 to 6. (3) to a2 indicate the same or equivalent parts as the above conventional example, α is the outer casing of the indoor unit (3), Independent ventilation passages (14a) and (1, 4b) are installed inside, and one of the ventilation passages (14a) uses the temperature of the heated upper part of the room (4) to heat the lower part of the room (4). A first heat exchanger QG that acts as an evaporator during heat utilization operation (hereinafter referred to as heat utilization operation), and a blower αQ that blows air above the air chamber (4) passing through this first heat exchanger. The other air passage (14b) is provided with a second heat exchanger aη that acts as a condenser during heat utilization operation, and a blower that blows air passing through the second heat exchanger downward into the chamber (4). (to) is provided, and the first heat exchanger OQ and the second heat exchanger αη are connected via a throttle resistor Ql and a solenoid valve (4) installed in parallel thereto. - A series circuit of an outdoor heat exchanger (8) and a throttle resistor (9); a bypass circuit having a solenoid valve (2) installed in parallel with the circuit so as to bypass the circuit;
The temperature sensing element installed on the top of the controller controls the solenoid valves (A) and @ via the control circuit (C).

This invention is configured as described above, and when the temperature inside the room (4) is low and heating is performed (hereinafter referred to as heating and heating),
This temperature is detected by the temperature sensing element and the solenoid valve (2) is opened, and the solenoid valve (2) is completely closed. As a result, the refrigerant flows through the compressor (7), the four-way valve (6), the second heat exchanger αη, and
Solenoid valve (1), 1st m, exchanger α throttle resistance part (9),
The heat passes through the outdoor heat exchanger (8), the four-way valve (6) tray, and returns to the compressor (7). At this time, the first and second heat exchangers aa
, aη acts as a condenser, the outdoor heat exchanger (8) acts as an evaporator, and the indoor temperature is heated by operating the blower QQ, (7), but the indoor temperature distribution is the same as in the conventional case, as shown in Fig. 3. It becomes like this. When the temperature in the upper part of the room rises to a predetermined temperature, the temperature detection element detects this and switches to heat utilization operation. That is, when the temperature in the upper part of the room reaches a predetermined temperature, the solenoid valve (1) is closed by the temperature detection element υ, and the solenoid valve (2) is closed.
) is released. As a result, the refrigerant flows as shown by the dashed line, the throttling resistance θ acts, and the outdoor heat exchanger (8) and the throttling resistance 9) cease to act, so the second heat exchanger aη
acts as a condenser, and the first heat exchanger αυ acts as an evaporator. In addition, the blower α and the blower (to) are operated, and the air from the blower aQ is directed upward into the room (2).
By directing the air from the blower (toward) downward into the room (2), the temperature distribution in the room is almost uniform as shown in Figure 7, and the amount of heat from the temperature difference (shaded area in the figure) compared to the conventional system is effective. It can be used in a variety of situations, causing no discomfort in the living space, and saving labor. On the other hand, during cooling, the four-way valve (6) is switched, the solenoid valve (a) is fully opened, and the solenoid valve (a) is closed. As a result, the refrigerant flows as shown by the solid line, and the refrigerant flows into the outdoor heat exchanger (8
) acts as a condenser, the first αη and the second heat exchanger (g) act as an evaporator, and the room is cooled by operating the blower (IQ).

In addition, in the above embodiment, the first and second heat exchangers are provided with blowers Qfj and oe, respectively, but the same effect cannot be obtained even if only the air passage is formed independently using one blower. nru.

Also, a bypass circuit? Although υ bypasses the outdoor heat exchanger (7) and the throttle resistor (9), the same effect can be obtained even if only the throttle resistor (9) is bypassed.

As explained above, the present invention provides an air conditioning system in which a compressor, a four-way valve, an outdoor heat exchanger, a throttle resistor, and an indoor heat exchanger form a refrigeration cycle, in which the indoor heat exchanger is connected to a first heat exchanger. and a second heat exchanger, and form a parallel circuit consisting of a throttle resistor and a solenoid valve? By providing a bypass circuit with a solenoid valve in parallel with the above-mentioned throttling resistor, it is possible to perform heating at the initial stage of heating and to utilize the heat generated in the upper part of the room due to this heating and heating. Operation and cooling operation using heat pump cycle, heat utilization operation? By doing so, the temperature of the ceiling and floor areas can be made almost uniform at all times, resulting in comfortable heating with less heat loss.

[Brief explanation of drawings]

Fig. 1 is an installation diagram showing a conventional example, Fig. 2 is a refrigerant circuit diagram thereof, Fig. 3 is an indoor temperature distribution diagram thereof, Fig. 4 is an installation diagram showing an embodiment of the present invention, and Fig. 5 6 is a perspective view of the indoor unit, and FIG. 6 is a refrigerant circuit diagram.
FIG. 7 shows a temperature distribution diagram during heating according to the present invention. In addition, the same reference numerals in each figure indicate the same or equivalent parts.
3) is the indoor unit, (4) is the chamber, (6) is the four-way valve, (7) is the compressor, (8) is the outdoor heat exchanger, (9) is the throttle resistor,
Q5 is the first heat exchanger, αη is the second heat exchanger, Q9 is the throttle resistance, (a) and (a) are the solenoid valves, ? υ is a bypass circuit. Agent Makoto Kuzuno - Fig. 1 Fig. 2 Fig. 3 Fig. 4 :J) Fig. 7 □ Temperature of each part -1

Claims (1)

[Scope of Claims] (1) In an air conditioning system in which a compressor, a four-way valve, an outdoor heat exchanger, a throttle resistor, and an indoor heat exchanger form a refrigeration cycle, the indoor heat exchanger is used as a first heat exchanger. It is characterized in that it is formed from a heat exchanger and a second heat exchanger, and is provided via a parallel circuit consisting of all the throttle resistors and a solenoid valve, and a bypass circuit having a solenoid valve is provided in parallel with the yb resistor section. Air conditioning equipment. (2) The heating device according to claim 1, wherein the bypass circuit is provided in parallel with the series circuit of the throttle resistor and the outdoor heat exchanger. (8) A patent claim characterized in that a refrigerant heater is provided to heat the refrigerant during the refrigeration cycle! The heating device according to scope 1 or 2.