JPS60147047A - Dehumidifying operation control device of air conditioner - Google Patents

Abstract

PURPOSE:To improve the feeling during the dehumidifying by a constitution wherein the turning ON and OFF of a compressor and the increase and decrease of blasting air flow are controlled in combination with each other based upon the result of the comparison between the room temperature and the stepwise set temperatures and upon the set time in the titled device utilizing a microcomputer. CONSTITUTION:During the dehumidifying operation, when the detected temperature (t) exceeds the set temperature T, the temperature (t) is compared with the set temperature T+1. If the temperature (t) is below the set temperature T+1, a compressor ON signal is outputted from a translating means so as to drive a compressor for a period of time instructed by a clock means. At the same time, a blower is blown through a memorizing means at the blasting air blow rate suitable for dehumidifying for the predetermined period of time. When the room temperature (t) is below the set temperature T, a compressor OFF signal is outputted from the translating means based upon a clock means signal so as to turn OFF the compressor. At the same time, the blower is blown through the memorizing means at the blasting air flow rate suitable under the condition that the compressor is OFF. After the elapse of the predetermined period of time, the compressor is turned ON and the blower is operated at the set air flow rate determined by the memorizing means for cooling. If the temperature (t) exceeds the set temperature T+1, the control under cooling operation is performed. Thus, the improvement of the feeling is realized.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a defrosting operation control device for controlling the dehumidifying operation of an air conditioner using a microcomputer.

Conventional Structure and Problems Conventionally, during dehumidifying operation of an air conditioner, the compressor operates only within a small range as shown in FIG. 1 relative to the thermoset temperature value. Therefore, even if the dehumidifying operation is started, there is a problem in that the dehumidifying operation can be repeatedly turned on and off even if there is a slight change in the air conditioning around the set temperature, and the feeling during dehumidification cannot be said to be good.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional problems, and aims to dramatically improve the feeling during dehumidifying operation of an air conditioner.

Structure of the Invention Page 3 In order to achieve this object, the present invention installs a temperature-sensing element to detect the indoor temperature at the air inlet that enters the indoor heat exchanger of an air conditioner, and converts the indoor temperature into an electrical signal. and a plurality of indoor temperature set values T, T+1, T.
a comparison means for comparing and determining each electric signal of +2 and outputting all two control signals H and L; a timekeeping means for time-controlling the air volume of the indoor blower when the operation stop time of the compressor has elapsed; Transition means for sequentially shifting the on/off control of the compressor and the air volume of the indoor blower by an electric signal output from the timekeeping means; output control means for controlling the compressor on/off according to the electric signal of the transition means; and the transition means storage means storing an air volume variable output mode for controlling the air volume of the indoor blower stepwise in the direction of increasing or decreasing according to an electric signal of the storage means, and operating the indoor blower at a specified air volume according to the electric signal of the storage means. A dehumidification operation control device for an air conditioner is provided in which the output means constitutes a dehumidification operation control device.

With this configuration, the temperature range during dehumidification operation of the air conditioner is expanded, and the feeling during dehumidification can be dramatically improved.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 2 to 6 of the accompanying drawings.

In FIG. 3, the control circuit includes a temperature sensing element 1 for detecting indoor temperature, an indoor temperature detection circuit 2 including the temperature sensing element 1, and an indoor temperature set value (thermo off temperature value T) T.

T+1. Resistance circuit 3. Resistance circuit 4. Resistance circuit outputs T+2 electrical signal. Resistance circuit 5. The electrical signal Pt output from the temperature detection circuit 2 and the lightning and air signals P1. PT+1
．． Comparison device 1 for comparing and determining with PT+2. Il.

A timer device that controls both the operation stop time of the L compressor 12 and the air volume of the indoor fan, an electric signal that controls on/off the compressor 12 based on the electrical signals of the comparison device and the timer device, and the air volume (rotation speed) of the indoor fan. 2 transition devices that output electrical signals to sequentially shift the first output data to maintain the set air volume during dehumidification and each set air volume (Hi, Me, Low) during cooling using the electrical signals from the transition circuit. A microcomputer 6 (hereinafter referred to as LSI) having a built-in storage device that stores second output data and third output data that maintains the air volume SLo when the compressor is stopped during dehumidification operation, is built into the LSI 6. A switch circuit 11 comprising a switching transistor 8 and a compressor relay 7 that turns on and off the compressor 12 using an electric signal output from the transition device, and an LS
An output device 9 with a built-in transistor that modulates the pulse width with an electrical signal output from a storage device built into the I6 and operates the indoor fan 10 at an air volume specified by the storage device.
, equipped with an indoor fan with transistor motor specifications.

Now, to explain the block diagram shown in FIG. 4 and the control circuit shown in FIG. 3, the temperature detection circuit 2 shown in FIG. 3 is the temperature detection means shown in FIG. 4, and the resistance circuit 3 shown in FIG. Resistance circuit 4. The resistance circuit 6 has a temperature set value (thermo-off temperature value) T, a temperature set value T+1. Corresponds to temperature set value T+2, LS in Figure 3
I6 built-in comparison device, timer device, transition device,! t1.
I'E2. 1st. The storage device that stores the I'E-data corresponds to the storage device that stores the comparison means, time measurement means, transition means, and variable air volume output mode shown in page 4 of Fig. 6, and the switch circuit of Fig. 3. Reference numeral 11 corresponds to the output control means of the compressor 12, the output device with a built-in transistor shown in FIG. 3 corresponds to the output means of the indoor blower, and the indoor blower 10 having a transistor motor specification corresponds to the indoor blower.

Next, the structure and operation of the control circuit having the above structure will be explained with reference to the flowchart of FIG.

At the start of dehumidification operation (when p=o: Fig. 6), the indoor temperature ti is detected by the temperature sensing element 1, and the electric signal Pt is output from the temperature detection circuit 2, and the electric signal PT of the indoor temperature set value (thermo off temperature) T is detected. It is output from the resistance circuit 3. The electrical signal Pj
and PT are compared and judged by the comparison device 1 built in the LSI 6, and if the electric signal Pt is higher than the electric signal PT, the comparison device I
The signal I output from becomes HK, and then the electric signal PT+ of the indoor temperature set value T+1 is output from the resistance circuit 4, and the comparison device built in the LSI 6 compares the electric signal Pi and the electric signal P,+1 again. The electrical signal Pj is P,
If it is lower than +17 to -7°, the comparator outputs a signal ① at L level. The H of the signal I and the L of the electric signal 11 are output to the transition device built in the LSI 6, an ON operation signal is output from the transition device to the switch circuit 11 of the compressor, and the first signal is output from the transition device to the storage device built in the LSI 6. An electric signal for an operation command based on the output data is output, and the output device 9 with a built-in transistor operates with the pulse width of the first output data, and the indoor fan 10'ff: operates at the commanded air volume to start dehumidifying operation. do.

When the electric signal output from the comparator 1 built in the LSI 6 is L, the electric signal H from the timer circuit built in the LSI 6 is outputted to the transition device, and the transition device compresses An off operation signal is sent to the switch circuit 11 of the compressor, the switching transistor 8 is turned off, and the compressor is stopped for the timer set time N1.

'81: The transfer device outputs an electric signal for the operation command with the third output data SLo to the storage device inside the LSI 6, and the indoor fan 1o is operated at the air volume specified by the output device 9 for the timer set time. Let me drive only N1.

After the timer setting time N1 has elapsed, the electric signal of the timer circuit becomes L.
is output to the transition device, and the compressor switch circuit 1
An on-operation signal is output to 1, the switching transistor 8 is turned on, and the compressor is started, and the storage device is reset with the electric signal of the operation command using the third output data from the transfer device, and the second output An electric signal of an operation command in the form of data is output, and the output device 9 with a built-in transistor operates to restart operation. In addition, a comparison device with built-in LS I6■
When the signal ■ output by In addition, an electric signal for operation command using the second output data is outputted from the transition device to the storage device, and the output device 9 with a built-in transistor operates with the pulse width of the second output data to blow indoor air at the commanded air volume. 7 machines were operated for 10 hours and cooling operation started.

Also, after dehumidifying operation (at P-1), the electric signal Pt of the indoor temperature is
and an electrical signal PT+ of the room temperature set value T+2.

9. Comparison with Hage is made, and if it is low, the electric signal (2) from the comparator (2) built in the LSI 6 is L. Furthermore, if the signal I from the comparator I is H, the dehumidifying operation is continued.

However, if the electric signal Pj of the indoor temperature after the dehumidifying operation (at P-1) is higher than the electric signal PT+2 and the signal of the comparison device However, when the electric signal Pi after the dehumidifying operation is lower than the electric signal P, the same operation as L of the signal I for starting the dehumidifying operation is performed.

The above is an explanation of the operation of the dehumidification operation control.

FIG. 2 shows the temperature range of the dehumidifying operation of the present invention. FIG. 6 is a relay casing diagram showing the on/off operation of the compressor.

Effects of the Invention As is clear from the above embodiments, the dehumidification operation control device for an air conditioner according to the present invention expands the operating temperature range of the dehumidification operation after the start of the dehumidification operation, thereby preventing slight changes in air conditioning near the set temperature. The excellent effect of preventing the on/off operation of dehumidification operation and improving the feeling during dehumidification can be obtained.

10 Beige

[Brief explanation of drawings]

FIG. 1 is a dehumidifying operation temperature range diagram of a conventional dehumidifying operation control device for an air conditioner, FIG. 2 is a dehumidifying operation temperature range diagram of the dehumidifying operation control device for an air conditioner according to the present invention, and FIG. A circuit diagram of a dehumidification operation control device in one embodiment, FIG. 4 is a block diagram expressing the dehumidification operation control device of the present invention as a function realizing means, and FIG. 6 is a compressor control range in the same dehumidification operation control device. 6 are flowcharts of the dehumidification operation control device. 1... Temperature sensing element, 2... Temperature detection circuit (temperature detection means), 3... Resistance circuit, 4... Old...
・Resistance circuit, 6...Resistance circuit, 6...
Microcomputer, 7...Relay, 8...
...Switch transistor, 9...Output device (output means), 1o...Indoor blower, 11
...Switch circuit (output control means), 12...
...Compressor. Name of agent: Patent attorney Toshio Nakao (1st person)
Figure 3 Figure 5 Figure 87 Figure 6 TART Input waste and y=. calf, FiNttony=t〃Yf,s7,,. tton7tl Cθh Art ]k α

Claims (1)

[Scope of Claims] A temperature-sensing element that detects indoor temperature at the air intake port that enters the indoor heat exchanger, temperature detection means that converts the indoor temperature into an electrical signal and outputs it, and a plurality of indoor temperature set values'l", T-1
-1, T+2 electrical signals are compared and determined, H or L 2.
a comparison means for outputting a control signal; a timekeeping means for time-controlling the operation stop time of the compressor or the air volume of the indoor blower; lightning output from the comparison means and the timekeeping means;
transition means for sequentially shifting the on/off control of the compressor and the air volume of the indoor blower based on an electric signal; and an air volume variable that controls the air volume of the indoor blower stepwise in the direction of increasing or decreasing using an electric signal from the transfer means. a microcomputer having a built-in storage means for storing an output mode; an output means for operating the indoor blower at a designated air volume based on an electric signal from the storage means; and an electric signal from the transition means to turn on the compressor. A dehumidifying operation control device for an air conditioner comprising an output control means.