JPS59150238A - Heating-operation controlling device of air conditioning apparatus - Google Patents

Abstract

PURPOSE:To eliminate unpleasant feeling due to cold wind, by reducing the amount of air blown out of a heat exchanger in the inside of a room when a room temperature conditioner is OFF, not by returning the amount of air in the room instantly to a preset amount of air when the room temperature conditioner is returned but actually increasing the temperature by a heat medium after the room temperature conditioner is returned, and thereafter increasing the amount of air in the room to the preset amount. CONSTITUTION:When a room temperature is increased to a specified temperature at the time of normal heating operation, a room temperature conditioner 5 is closed to the side of a contact point H, a heat medium heater 1 and a heat medium circulator 2 are stopped, and a room fan 6 is stopped in order to eliminate the feeling of cold wind. When the heating is stopped and the room temperature is decreased to a point lower than the returning temperature of the room temperature conditioner 5, the room temperature conditioner 5 is closed to the side of a contact point L, the heat medium heater 1 and the heat medium circulator 2 are operated, and the heating is restarted. When the pressure of the heat medium is increased and becomes a preset pressure of a pressure switch 6, the room fan 4 is actuated, and the warm air is blown.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heating operation control device for an air conditioner equipped with a heat medium heating device.

Conventional configuration and its problems Conventionally, in an air conditioner equipped with a heating medium heating device, when the indoor temperature controller is activated and the heating medium heating device is stopped, the air blows out from the indoor heat exchanger. The temperature of the wind fluctuates,
The temperature of the blown air decreases, causing discomfort. For this reason, conventionally, when the indoor temperature controller is turned off, the air volume is reduced and the outlet temperature is lowered. Even if the equipment restarts operation immediately, the heating medium heating device may not be able to start heating immediately (oil vaporization burner, etc.), or even if heating is resumed, the heating medium heating device itself has a large heat capacity and the If it takes time for the medium to reach a predetermined temperature, the temperature at the beginning of the blowout will be low, resulting in discomfort.

Purpose of the Invention The present invention solves the above-mentioned problems of the conventional example, and is equipped with a heating medium heating device, which reduces the amount of air blown from the indoor heat exchanger when the indoor temperature controller is turned off, and also reduces the indoor temperature. When the controller returns, instead of immediately returning the indoor air volume to the set air volume, after the indoor temperature controller returns and the temperature of the heating medium actually rises, the indoor air volume is increased to the predetermined amount, and the indoor air volume is increased to the specified amount. This eliminates discomfort and provides comfortable heating.

Composition of the Invention The heating operation control device for an air conditioner of the present invention includes at least an indoor heat exchanger, a heat medium heating device, and a heat medium circulation device connected in a ring to form a heat medium circulation circuit, an indoor fan that sends the air that has exchanged heat with the heat exchanger into the room; an indoor temperature controller that operates upon detecting the indoor air temperature; and an indoor temperature controller that operates when the indoor temperature controller detects a predetermined high temperature. reducing the heating capacity and reducing the amount of air blown by the guide fan; and when the indoor temperature controller detects a predetermined low temperature, increasing the heating capacity of the heat medium heating device, and increasing the heat medium to a predetermined high temperature or a predetermined pressure; and an electric control circuit that increases the amount of air blown by the indoor fan after reaching This provides a comfortable feeling of heating.

DESCRIPTION OF THE EMBODIMENTS FIG. 1 is an explanatory diagram of an embodiment of the present invention with reference to the accompanying drawings. In this figure, 1 is a heat medium heating device, 2 is a heat medium circulation device (compressor), 3 is an indoor heat exchanger, and these are connected in a ring. 04 is an indoor fan, and 5 is an indoor heat exchanger. Detects temperature and turns on.

The indoor temperature controller is turned off, and 6 is a pressure switch that detects the pressure of the heating medium. FIG. 2 shows the electrical control circuit of this embodiment. The indoor temperature regulator 6 closes to the contact H side when it detects a temperature above the set value, and the 0-pressure switch 6 closes the contact when the temperature below the set value is detected, and closes the contact when the pressure exceeds the set pressure 07 Next, the operation of this embodiment will be explained.During normal heating operation, the heating medium pressure is high, so the heating medium heating device 1, the heating medium circulating device 2, and the indoor fan 4 are in operation. Next, when the room temperature rises to a predetermined temperature, the indoor temperature regulator 6 closes to the contact H side, and the heating medium heating device 1 and the heating medium circulation device 2
stops, and at the same time, the indoor fan 4 also stops to eliminate the feeling of cold air. When the room temperature falls below the return temperature of the indoor temperature controller 5 due to heating being stopped, the indoor temperature controller 6 closes to the contact side, and the heat medium heating device 1 and the heat medium circulation device 2 are activated. However, at this time, if the heating medium circulation device 1 or the heating medium heating device 2 is slow to start up, the heating medium pressure will not rise well, and the contact of the pressure switch e will remain open, so the indoor Fan 4 doesn't work o'C
When the heating medium pressure rises and reaches the set pressure of the pressure switch 6, the indoor fan 4 operates and blows out hot air. Indoor 77 until the value exceeds the setting value of switch 6.
Since the engine 4 is not activated, cold air is not blown out and does not cause discomfort to people. In addition, since the indoor fan 4 can be activated from the beginning and the heating medium pressure can be increased more quickly than before, startup is quick and energy can be saved.

Next, referring to FIG. 3, another embodiment of the present invention that enables switching between cooling and heating will be described. In this embodiment, a four-way valve 10 is used to switch between cooling and heating. Components that are the same as those in the previous embodiment are given the same numbers and their explanations are omitted. In FIG. 3, 8 is an outdoor heat exchanger, 9 is an outdoor fan, and 10 is a four-way valve, with solid lines indicating the cooling cycle and broken lines indicating the heating cycle. 11 is a pressure reducer, and 12 is a check valve. Reference numeral 13 is a two-way valve, which is closed during cooling and open during heating.The flow of refrigerant (heat medium) is actually during the cooling cycle, and the broken line indicates the heating cycle at 1 o'clock. , the cooling cycle is the same as the conventional refrigeration cycle, and the heating cycle is the same as the embodiment shown in FIG. Although the switch 6 is used for detection, instead of this pressure switch 6,
It may also be a temperature detector that detects the temperature of a heating medium, a refrigerant, or a pipe. Furthermore, in the above embodiment, when the room is heated to a predetermined temperature, the heat medium heating device 1 and the heat medium circulation device 2
, I am trying to stop the indoor fan 4, but
The heat medium circulation device 2 may continue to operate, and the heating capacity of the heat medium heating device 1 and the amount of air blown by the indoor fan 4 may be reduced.

Effects of the Invention According to the heating operation control device for an air conditioner of the present invention, in addition to reducing or stopping the air volume blown from the indoor heat exchanger when the indoor temperature controller detects a predetermined high temperature, When the indoor temperature controller returns, the stopped a = 4 → 4, and when the heating medium reaches the set pressure or temperature, it returns to the set air volume, so when the indoor temperature controller returns, the cold air is No more blowouts and discomfort can be prevented.
Therefore, the set temperature of the room temperature controller can be set lower than that of the conventional method, resulting in effects such as energy saving.

FIG. 2 is a schematic circuit diagram of a heating operation control device for the air conditioner.

1... Heat medium heating device, 2... Heat medium circulation device, 3...--Indoor heat exchanger, 4...
Indoor fan, 6... Indoor temperature controller, 6'.
...Name of the agent for Okasuinochi Patent attorney Toshio Nakao and one other person Figure 1 Figure 21! I Figure 3

Claims (1)

[Claims] A heat medium heating device, a heat medium circulation device, and an indoor heat exchanger are connected in an annular manner to form a heat medium circulation circuit, and an indoor fan sends air that has exchanged heat with the indoor heat exchanger indoors. , an indoor temperature regulator that operates by detecting indoor air temperature; and when the indoor temperature regulator detects a predetermined high temperature, the heating capacity of the heat medium heating device is reduced or stopped, and the indoor fan is supplied. The air volume is reduced or stopped, and when the indoor temperature controller detects a predetermined low temperature, the heating medium heating device is operated at its normal capacity, and after the heating medium reaches a predetermined temperature or pressure, the indoor fan is turned on. A heating operation control device for an air conditioner, which includes an electric control circuit that operates at a normal air volume.