JPS63129239A - Control device of air conditioning system - Google Patents

Abstract

PURPOSE:To prevent humidifying operation which will give displeasure by providing a temperature control section which controls room heating operation based on the temperature of a room to be air-conditioned, and a humidification control section which conducts the operation of an ultrasonic wave humidifier when the temperature of a condenser or the cooling medium pressure goes over a specified value. CONSTITUTION:The room temperature of a room to be air-conditioned detected by a temperature sensor, the temperature of a condenser detected by a temperature sensor 8, and a room temperature set value are inputted. Next, if it is possible to perform room heating operation when the room temperature is lower than a set room temperature value and there is no frost attached to an evaporator, the room heating operation is started. Further, the operation of an ultrasonic wave humidifier 3 is made when the temperature of the condenser becomes over a certain specified temperature. If an air conditioning system is controlled by using a control device 4 the humidifier is operated only when the air conditioner is performing room heating operation and the temperature of the condenser is over a specified value. It is possible, therefore, to prevent the feeling of cold wind given by humidifying operation when the temperature of the air blown out from an air conditioner is low.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an air conditioning system capable of heating operation using a refrigeration cycle and humidification operation using an ultrasonic humidifier, and particularly relates to control of humidification operation.

(B) Conventional technology In general, an air conditioning system that includes an air conditioner that can perform heating operation using a refrigeration cycle and ancillary equipment such as an electric fan is the one described in Japanese Patent Application Laid-open No. 80048/1983. there were. The system described in this publication uses a temperature sensor to detect the temperature of a room to be conditioned, and controls the operation of an air conditioner (only cooling operation is described in this publication). The fan was designed to operate when the machine was not operating. (It is considered desirable to stop the operation of the indoor blower of the air conditioner.) By controlling in this way, it is possible to prevent the return of moisture that occurs when the air conditioner is stopped, and it is also possible to By blowing air into the room, it was possible to eliminate the discomfort experienced during periods when the cooling function was not available.

(8) Problems to be solved by the invention - In the conventional air conditioning system as described above, it is described that the operation of the air conditioner (cooling operation) and the operation of the electric fan are controlled based on the temperature in the room to be conditioned. The only thing that happened was that

When this kind of control is used for humidifying operation during heating operation,
The humidifier is controlled in conjunction with the heating operation based on the temperature of the humidifier. In this case, for example, when the heating operation is started, the humidification operation is performed even though the temperature of the blown air is low, and the mist from the humidifier makes the user feel a cold wind, which is extremely unpleasant. Furthermore, an air conditioner using a refrigeration cycle requires a defrosting operation, and during this defrosting operation, if the temperature of the room to be conditioned is high, a humidifying operation is performed in the same manner as above. That is, unnecessary humidification operation is performed, and especially when an ultrasonic humidifier is used, the usable time of the ultrasonic transducer is wasted due to this unnecessary humidification operation. Incidentally, the usable time of an ultrasonic vibrator is generally about 10,000 hours, and when this time is exceeded, the atomization ability is extremely reduced.

In view of these problems, the present invention provides a control device that prevents humidification operation that causes discomfort to the user and that makes effective use of the life of the ultrasonic transducer.

(d) Means for Solving the Problems The present invention includes an air conditioner and an ultrasonic humidifier, which are equipped with a refrigeration cycle in which a compressor, a condenser, a pressure reducer, and an evaporator are connected in a circular manner through refrigerant piping. , a control device for an air conditioning system that can perform heating operation and humidification operation, including a temperature control unit that controls heating operation based on the temperature of a room to be conditioned; and a humidification control section that operates the ultrasonic humidifier when the temperature or refrigerant pressure exceeds a predetermined value.

(E) Operation In the control device for an air conditioning system configured as described above, the ultrasonic humidifier is operated when the temperature of the condenser or the refrigerant pressure reaches a predetermined value or higher.

(f) Examples Examples of the present invention will now be described based on the drawings. FIG. 1 is an explanatory diagram showing an embodiment of the air conditioning system of the present invention,
An indoor unit 2 of an air conditioner is attached to a wall within a conditioned room 1, and an ultrasonic humidifier 3 is placed within this room 1 at the same time. 4 is a control device that controls heating operation and ultrasonic humidification by the air conditioner based on the temperature of the conditioned room 1 detected by the temperature sensor 5 and the temperature (or refrigerant pressure) of the condenser housed in the indoor unit 2. The humidifying operation by the device 3 is controlled. Although the above-mentioned air conditioner uses a separate type in which the indoor unit 2 has a condenser and the outdoor unit has a compressor, evaporator, and pressure reducer, it may be an integrated type in which all are housed in a single unit. The ultrasonic humidifier 3 may be housed within this single unit, or may be housed within or integrally attached to the indoor unit 2.

FIG. 2 is a block diagram showing the main operations of the control device shown in FIG. 1. 6 is a temperature control unit, which outputs a heating signal to the air conditioner 7 if the temperature of the conditioned room 1 detected by the temperature sensor 5 is lower than the room temperature set value arbitrarily determined by the user and there is no defrosting signal. When the temperature of the conditioned room 1 exceeds the room temperature set value, the heating signal is cut off and the heating operation is stopped. Note that the output and cutoff of this heating signal may be determined by setting a differential of a predetermined width with respect to the room temperature. 8 is a temperature sensor for the condenser, and it is located at a position in the indoor unit 2 that can detect the temperature of the condenser. It is installed. 9
is a comparison section which outputs a humidification signal when the temperature of the condenser detected by the temperature sensor 8 exceeds a predetermined value. Note that a predetermined differential may be set for this humidification signal as well, in the same manner as above. 10 is an AND gate section, which operates the ultrasonic humidifier 3 based on the logical product of the heating signal and the humidification signal.
control the operation of This AND gate section 10 and comparison section 9
constitutes the humidification control section.

FIG. 3 is a flowchart when a microcomputer is used as the control device 4 shown in FIG. First, the room temperature of the conditioned room 1 determined by the temperature sensor 5, the temperature of the condenser determined by the temperature sensor 8, and the room temperature set value are input.

Next, if the room temperature is lower than the set room temperature and there is no frost on the evaporator and heating operation is possible, heating operation is started. Further, when the temperature of the condenser exceeds a predetermined value (a temperature at which hot air sufficient for heating can be obtained), the ultrasonic humidifier 3 is operated. The humidifier 3 may be operated by directly outputting an operating signal or by supplying power.

When the above air conditioning system is controlled using the control device 4 configured as described above, the humidifier 3 is activated only when the air conditioner is performing heating operation and the temperature of the condenser is above a predetermined value. Humidification operation is performed. Therefore, it is possible to prevent the feeling of cold air caused by the humidifying operation when the air blowing temperature of the air conditioner is low. Further, when the temperature of the condenser is low, such as during defrosting operation, humidification operation is not performed, and it is possible to prevent a reduction in the usable time of the ultrasonic transducer due to unnecessary humidification operation.

(G) Effects of the Invention The present invention provides a control device for an air conditioning system having an air conditioner consisting of a compressor, a condenser, a pressure reducer, and an evaporator, and an ultrasonic humidifier, which performs heating operation based on the temperature of a conditioned room. and a humidification control unit that operates the ultrasonic humidifier when the air conditioner is in heating operation and the temperature or refrigerant pressure of the condenser exceeds a predetermined value. Therefore, the humidifier can be operated during heating operation and when the air conditioner is in a state where it can perform sufficient heating. Therefore, humidification operation can be performed without feeling the cold air caused by humidification, and the life of the ultrasonic transducer can be effectively utilized without performing humidification operation when unnecessary.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of an air conditioning system using a control device according to an embodiment of the present invention, FIG. 2 is a block diagram of main parts of the control device shown in FIG. 1, and FIG. 3 is a diagram of the control device shown in FIG. 1. 2 is a main part flowchart showing the operation when a microcomputer is used. 1... Room to be harmonized, 2... Indoor unit, 3...
・Ultrasonic humidifier, 4...control device, 5...
Temperature sensor, 6... Temperature control section, 7... Air conditioner, 8... Temperature sensor, 9... Comparison section,
10...And gate section. Applicant: SANYO Electric Co., Ltd. and one other agent Patent attorney Takuji Nishino and one other person Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] (1) An air conditioning system that has an air conditioner equipped with a refrigeration cycle in which a compressor, condenser, pressure reducer, and evaporator are connected in a ring through refrigerant piping, and an ultrasonic humidifier, and is capable of heating operation and humidification operation. In the control device, a temperature control section that controls heating operation based on the temperature of the conditioned room, and when the air conditioner is in heating operation and the temperature or refrigerant pressure of the condenser exceeds a predetermined value. A control device for an air conditioning system, comprising: a humidification control section that operates the ultrasonic humidifier.