JPS58123038A - Air conditioner - Google Patents

Abstract

PURPOSE:To eanble always comfortable air conditioning control by a method wherein a predetermined value of cooling and dehumidifying operation is controlled in a plurality of controlled steps so as to restrict a discomfort index in air conditioning room less than a desired value in response to an output of temperature sensing and humidity sensing elements for sensing a room temperature and humidity in the air conditioned room. CONSTITUTION:When a temperature change-over switch 16 is at an automatic position, a room temperature is sensed by a micro computer through a temperature sensing element 12 and the micro computer 15 selects automatcially a predetermined room temperature. When a humidity change-over switch 14 is at an automatic position, the micro computer 15 selects automatically a predetermined humidity value in response to said predetermined room temperature. Then, the micro computer 15 senses a room temperature and humidity with the temperature sensing element 12 and humidity sensing element 13 and controls a compressor 1, interior and outdoor blower fans 10 and 3 and cooling and heating change-over solenoid valves 5 and 8. A selection of said predetermined humidity is desired to cause a discomfort index to be less than the desired value.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air conditioner that combines a cooling operation and a warming cycle to keep the discomfort index of an air conditioning room below a predetermined value at all times.

Conventionally, in an air conditioner having this type of dehumidification function, the dehumidification operation is performed when the dehumidification operation switch O is turned on, and the # position is continuously maintained regardless of the room temperature. Maybe r! The dehumidification operation was controlled using a humidity detector at a predetermined temperature of 11.

However, this type of air conditioner IIl is only capable of dehumidification and cannot appropriately control the humidity f1.

Therefore, there are problems such as not being able to perform a dehumidifying operation for more than 8 hours, and feeling uncomfortable because the optimum humidity for the room temperature cannot be obtained, resulting in wasted energy consumption.

In view of such problems, the air conditioner of the present invention is an air conditioner having a cooling function and a removal ms*@. Controlling the cooling operation and dehumidification operation settings I[in multiple stages so as to suppress the discomfort index of the air-conditioning room to a predetermined value or less based on the sensing values of the humidity sensing element and the temperature sensing element. The air conditioning system is equipped with a control mechanism, takes into account the discomfort index of the air conditioning room, and provides an air conditioning system that can maintain optimal air conditioning and maintain comfortable air conditioning.

Hereinafter, an actual example using the present invention will be explained based on the drawings. ,
The electromagnetic hole (
5), through the first indoor heat exchanger (6), the cabillary tube (7) and the electric valve (8) installed in the floating line, and the second indoor heat exchanger +91K 11th refrigerant piping The sending compressor, ING, is an indoor fan that blows air into the air conditioning room through the 21st inner heat exchanger (9) and the first indoor heat exchanger (6), and 12 is the air conditioning room fan. A11 is a temperature sensing element whose resistance value changes depending on the temperature tK, and α3 is a humidity sensing element which is installed in the air conditioning room α11 and whose resistance value changes to t depending on the humidity. In the electric fi circuit shown in Figure 2, α4
1 is automatic, low II (11 degrees 60 III), high temperature (humidity 7
0%) by switching the switching ratio signal t using the switching knob (14a).
-Terminals (k,), (k,), (k4) of microcomputer α9 (hereinafter referred to as microcomputer), which is an example of a control mechanism
), aS is the temperature setting value 2.
3 to 50 and automatic switching ratio signal from the switch knob (16a) K to the terminals (k, ) to (kts) of the microcomputer (to).
), the temperature selector switch aη connects one end to the power supply (
'VDD) K connected and the other end 1ki icon 4 terminal (k,,
) and the microcontroller (
One end of the resistor connected to the terminal (kl6) of Is is connected to the power supply ('VDI)), and the other end is connected to the terminal of the microcomputer (k,)rcll, and the terminal of the microcomputer αS via the moisture sensitive screen α. (kit), compression i fi+, indoor ventilation fan αG1. High air volume (River), low air volume (L), solenoid valve (
5) and the microcomputer a5, which operates in reverse through the inverter (2), operates according to the system shown in FIG. 3, and when the humidity selector switch (a) is set to automatic, control is performed at a discomfort index of 75%.

Note that the discomfort index is calculated by the following formula.

Discomfort index = (1,13a Celsius temperature) -0,55X (1-
Relative humidity) The microcomputer 119 senses the room temperature of the room αD using the temperature sensing element @, and according to the room temperature, the microcomputer 1 sets the room temperature set value 1kr28 Jr2 according to the flowchart in Fig. 3.
7-1r,! 6J.

In other cases, the knob (16a) adds the room temperature set value. Next, the humidity selector switch I is set to automatic, IIKA, 54%.
Set to one of Jr44116J (dehumidification capacity limit value). In other cases, use the knob (14m) to
G), low @ (60 嗟).

However, once the room temperature set value and the set value are determined, the microcomputer uses the temperature sensing element □□□ and the humidity sensing element 113 →;
If both are larger than the set values, the microcontroller terminal (kl
, ), (kts), (k, .), (k□) output the output, and this output is compressed via the driver section a@ (11
, Indoor blower fan αG1 Outdoor blower fan (3) with high air volume (eye, solenoid valve +51 t' Open solenoid valve @ close and perform cooling and dehumidification operation 0 Afterwards, when the humidity drops below the set value, the microcomputer When the output from the fourth terminal (kn) stops, the solenoid valve (8) is opened and the solenoid valve (51 is closed, performing only one cooling operation. Also, when the room temperature falls below the set value, the microcomputer's terminal (k,) The output from the terminal (kgt
) The outdoor ventilation fan (3) operates at a low air volume and performs only dehumidification operation. Furthermore, 1j! i
When the humidity falls below the set value, the microcontroller 51 compresses @ (11, the indoor ventilation fan (1 (1, Since monitoring of the conditioning room αD is started, the optimum humidity corresponding to the set temperature f can be obtained, and the discomfort index of the air conditioning room (2) can be controlled.

Controlling the room temperature according to the humidity t* is not limited to the example shown in FIG.

Air conditioning of the present invention! is an air conditioner having a cooling function and a dehumidifying function, a temperature sensing element that senses the room temperature of the air conditioning room, a humidity sensing element that senses the humidity f' of this q91Lp + Japanese-style room, the humidity sensing element, the temperature sensing element. A control mechanism for controlling the cooling operation and dehumidification operation in multiple stages according to the sensed value of □ is installed to keep the discomfort index t of the air conditioning room below a predetermined value, so that comfortable air conditioning can be achieved at all times. In other words, it is extremely effective as it eliminates wasteful cooling and dehumidifying operations and allows air conditioning to be performed using the minimum amount of energy.

[Brief explanation of the drawing]

Figure 91 is a refrigerant circuit diagram of an embodiment of the air conditioner according to the present invention, #! FIG. 2 is an electric circuit diagram multiplied by FIG. 1 K, and FIG. 3 is a flow chart of the microcomputer. (12... Temperature sensing element, α3... Sensing m* element, Target...
Mike Cuco/Piyuta. Figure 2

Claims (1)

[Claims] (1) Cooling function and removal full III *! The air conditioner S has a temperature sensing element that senses the room temperature of the air conditioning room, a humidity sensing element that senses Il& of the air conditioning room, and a cooling operation based on the sensed value of the humidity sensing element and the temperature sensing element. 9! A control mechanism for controlling the dehumidifying operation in a predetermined number of stages is installed to suppress the discomfort index of the air conditioning room to a predetermined value or less. Air conditioning.