JPH05223321A - Air-conditioning system - Google Patents

Abstract

PURPOSE:To improve the air-conditioning effect and simplify the constitution by a method wherein a single unit of ventilating device is controlled by a communication control device for remote control in each unit system and used in common among the unit systems and is made to function by means of the communication control device for the control in each unit system. CONSTITUTION:A plurality of unit systems 4, each comprising an air conditioner 1 and a plurality of communication control devices 2, 3 for controlling the air conditioner 1 of for its remote control, are provided in juxtaposition and a single ventilating device 5 is provided at the position where the air conditioner 1 in each of the unit systems 4 functions. The communication controllers 2, 3 in each unit system 4 are connected by a communication line 6 and a power line 7. In each unit system 4 directions from the communication controller 3 are judged by the communication controller 2 and the air conditioner 1 is operated on the basis of the resulting decisions. The operation of the ventilating device 5 is controlled by an operation signal-processing circuit 8 for the ventilation. This signal-processing circuit 8 is connected to the communication controller 2 in the individual unit system 4 by a signal line 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning system including a plurality of air conditioners.

[0002]

2. Description of the Related Art FIGS. 4 and 5 show, for example, JP-A-58-1.
It is a block diagram of the conventional air conditioning system shown by 17942 publication, and explanatory drawing of a signal waveform. In FIG. 4, 30
Is the main control unit, and its operation panel has each air conditioner 31
An operation switch 32 for switching from (K1 to Kn), an indicator light 33 for displaying the operation state of each air conditioner 31, and a main switch 34 for turning on / off the entire system are provided. Three
Reference numeral 5 is a slave unit provided in each air conditioner 31, one is a communication line connecting the main control unit 30 and the slave unit 35, and AC is a commercial AC power supply.

In the air conditioner remote control device having the above-described structure, digital signals are transmitted and received between the main control unit 30 and each slave unit 35, and each air conditioner 31 is transmitted.
The operation of is remotely controlled by the main control unit 30.

FIG. 5 shows a signal transmission state. The reset signal b for initializing the operating state of each air conditioner 31 is
Sent at the beginning of communication. Following the reset signal b, the synchronization signals c1, c2 ... C31 are transmitted. The driving command signals d1, d2 ... Are synchronization signals c1, c2 ...
・ Sequentially transmitted on the LOW level part. In this way, when the transmission of the operation command signals d1, d2 ... To all of the plurality of air conditioners 31 is completed, the transmission / reception is switched, and this time, the operation state signals e1, e2 ...・ Start receiving. The driving state signals e1, e2 ... Are also L of the synchronization signals c1, c2.
It is transmitted on top of the OW level part. When transmission / reception with all the air conditioners 31 is completed in this manner, the above-described transmission / reception state is entered again. Accordingly, the operation, the operation command, and the operation state of the plurality of air conditioners 31 can be monitored by the single main control unit 30.

[0005]

In the air conditioning system as described above, since the plurality of air conditioners 31 are controlled by the central control system by the main control unit 30 installed at one location, air conditioning from a plurality of locations is performed. The control of the air conditioner 31 and the operation such as the heating mode, the air blowing mode, and the ventilation mode provided in the air conditioner 31 cannot share the operation of the ventilation device, and the system is simple and the comfort level is high. It included aspects that were unsuitable for achieving an air-conditioned environment.

The present invention has been made to solve the above-mentioned conventional problems, and enables simplification of the system and
The purpose is to obtain an air conditioning system that can realize an air conditioning environment with high comfort.

[0007]

An air conditioning system according to the present invention includes a first communication control device provided in an air conditioner for controlling the air conditioner, and a first communication control device for remotely operating the air conditioner. A unit system related to air conditioning is configured by the communication control device of 2 and a plurality of unit systems are installed side by side and one ventilation device is provided.
One ventilation device is controlled by the second communication control device of each unit system, and the ventilation device can be shared by each unit system.

In another air conditioning system according to the present invention, the signal of the strong operation mode to the ventilation device is given priority over the signal of the weak operation mode or the stop mode.

In still another air conditioning system according to the present invention, in particular, a logical sum of a control signal for the ventilation device and an opening / closing signal indicating opening / closing of a shutter for opening / closing a ventilation passage provided in the ventilation device is first The communication control device and the signal circuit of the ventilation device are closed.

[0010]

In the air conditioning system according to the present invention, the second communication control device facing each unit system can remotely operate the air conditioner to perform air conditioning according to individual requirements. It will be possible to use the ventilation system of each unit system in common.

In another air conditioning system according to the present invention, the strong operation mode of the ventilation device is prioritized, so that a request from a unit system that strongly requires ventilation does not strongly request ventilation. You will not be alienated to your request.

Further, in still another air conditioning system according to the present invention, it becomes possible to operate the ventilation device independently even if there is no request from the unit system side.

[0013]

1 is a block diagram of an entire air conditioning system showing an embodiment of the present invention, FIG. 2 is a configuration diagram of the same air conditioning system, and FIG. 3 is a configuration diagram of a part thereof.

The air conditioning system shown in FIG. 1 includes an air conditioner 1, a first communication control device 2 provided in the air conditioner 1 for controlling the air conditioner 1 and a remote control of the air conditioner 1. A plurality of unit systems 4 which are unitary air-conditioning systems configured with the second communication control device 3 are provided side by side, and one ventilation device 5 is installed in a place where the air conditioner 1 of each unit system 4 functions. The air-conditioning function part is configured by being provided in a functional state. The first communication control device 2 and the second communication control device 3 of each unit system 4 are provided with a pair of communication lines 6 respectively.
And a power supply line 7 that supplies electric power from the first communication control device 2 to the second communication control device 3. Each unit system 4 judges an instruction from each of the second communication control devices 3 for remote control by the first communication control device 2,
A system of a decentralized control system which completes the air conditioner 1 based on an instruction is formed, and an independent system is configured except for the relationship with the ventilation device 5. Ventilator 5
Is controlled by the output of the ventilation operation signal processing circuit 8 provided in the ventilation device 5, and the ventilation operation signal processing circuit 8 communicates with the first communication control device 2 of each unit system 4 by a signal circuit 9, respectively. ing.

In FIG. 2, the ventilation strong operation mode, the ventilation weak operation mode, the circulation blower operation mode, the circulation ventilation operation mode, and the heating operation input from the key matrix circuit 10 of the second communication control device 3 of each unit system 4 Signals such as modes are sent to the microcomputer 1 of the second communication control device 3.
It is digitally encoded by 1 and transmitted to the opposing first communication control device 2. The first communication control device 2 identifies the signal transmitted by the microcomputer 12,
A control signal corresponding to the identified operation mode is configured and output to the air conditioner 1 and the ventilation device 5 facing each other to realize the operation mode. The control signal to the ventilation device 5 is output to the ventilation device 5 if at least one of the plurality of identified signals includes the ventilation operation mode. That is, the transistor 13 is interposed in the ground line of the signal line forming the signal circuit 9 with the ventilation device 5 of the first communication control device 2, and when the signal including the ventilation operation is identified, the transistor 13 becomes conductive and the signal is transmitted. The circuit 9 is formed and the blower is operated by the logical sum signal of the ventilation operation signals.

In FIG. 3, each first of each unit system 4
The ventilation operation signal processing circuit 8 of the ventilation device 5, which is connected to the communication control device 2 of FIG. 1 and the signal circuit 9, respectively, controls the signal in the strong operation mode with priority, and is provided to the control signal and the ventilation device 5. The first communication control device 2 of each unit system 4 and the signal circuit 9 of the ventilation device 5 are closed by the logical sum of the open / close signals indicating the opening / closing of the shutter 14 for opening / closing the ventilation passage. That is, the transistor array 16 connected to the NAND gate 15 is connected with the blower relay 17 and the triac 18, and the shutter relay 19 respectively, and the common contacts of the blower triac 18 and the relay 17 are connected in series. The normally open / normally closed contact of the relay 17 is connected to the rotation speed switching tap of the electric motor 20 of the blower. The triac 18 is driven by a ventilation operation signal, and the relay 17 is driven by a strength switching signal for ventilation operation.

Further, the common terminal 21 of the electric motor 20 of the blower in the ventilation device 5 is connected to one of the commercial power sources 22,
The strong operation winding is connected to the normally closed contact of the relay 17, the weak operation winding is connected to the normally open contact, the common contact of the relay 17 is connected to the T2 terminal of the triac 18, and the T1 terminal of the triac 18 is connected to the commercial power source 22. Therefore, the logical sum signal of the ventilation operation signals output from the plurality of first communication control devices 2 is applied to the gate of the triac 18, and the logical sum of the ventilation operation intensity switching signals is applied to the coil of the relay 17. ..

In FIG. 2, reference numeral 23 denotes various relays for heating the heater or the like for moving the air conditioner 1, and 24 denotes various triacs for controlling the operation of the air conditioner 2.
Reference numerals 5 denote constant voltage sources, respectively.

Therefore, in this air conditioning system, the second communication control device 3 facing each unit system 4 can remotely operate the air conditioner 1 to perform air conditioning according to individual requests. Since one ventilator 5 can be shared by each unit system 4, the system configuration can be simplified and the cost can be reduced. Further, since the strong operation mode of the ventilation device 5 is prioritized, a request from the unit system 4 that strongly requires ventilation may be alienated to a request from another unit system 4 that does not strongly request ventilation. Therefore, the ventilation device 5 can be shared in order, and the ventilation device 5 can be operated independently.

[0020]

As is apparent from the above description of the embodiments, according to the present invention, the second communication control device facing each unit system remotely operates the air conditioner to make individual requests. Therefore, it is possible to implement highly comfortable air conditioning, and one ventilation system can be shared by each unit system, which simplifies the system configuration and reduces costs.

Further, by prioritizing the strong operation of the ventilation device, it is possible to maintain order in sharing the ventilation device.

It is also possible to operate the ventilation device independently.

[Brief description of drawings]

FIG. 1 is an overall block configuration diagram of an air conditioning system showing an embodiment of the present invention.

FIG. 2 is a configuration diagram of an air conditioning system according to the present invention.

FIG. 3 is a configuration diagram of a part of the air conditioning system according to the present invention.

FIG. 4 is a configuration diagram of a conventional air conditioning system.

FIG. 5 is an explanatory diagram showing a signal waveform of a conventional air conditioning system.

[Explanation of symbols]

 1 Air Conditioner 2 1st Communication Control Device 3 2nd Communication Control Device 4 Unit System 5 Ventilator 6 Communication Line 7 Power Line 9 Signal Circuit 13 Transistor 14 Shutter 17 Relay 18 Triac 20 Electric Motor

Claims (3)

[Claims] 1. An air conditioner, a first communication control device provided on the air conditioner for controlling the air conditioner, and a second communication control device for remotely operating the air conditioner, the communication line and the first communication control device. A plurality of unit systems connected by a power supply line for supplying electric power from the first communication control device to the second communication control device are installed side by side, and one ventilation device is provided, and each one ventilation device is provided. An air conditioning system which is controlled by the second communication control device of the unit system, and the ventilation device is made to function as a shared ventilation device of each unit system by a logical sum signal from each first communication control device. .. 2. The control signal for the ventilation device includes signals for a strong operation mode, a weak operation mode, and a stop mode, and the strong operation mode among these signals is preferentially controlled. Air conditioner system described. 3. The first communication control device and the signal circuit of the ventilation device are closed by a logical sum of a control signal for the ventilation device and an opening / closing signal indicating opening / closing of a shutter for opening / closing a ventilation passage provided in the ventilation device. The air conditioning system according to claim 1, wherein the air conditioning system is formed.