JPH11287495A - Air conditioning system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To optimize the operation of each air conditioner by controlling the temperature of one or a plurality of air conditioners concentrically. SOLUTION: In an air conditioning system which concentrically controls the operation of one or a plurality of air conditioners 11A-11D having one or a plurality of outdoor machines 13 and indoor machines 14 by means of a central controller 12, the central controller 12 sets the information including the set temperature and operation capacity of the indoor machine 14 anew, taking the information including the set temperature ts requested from the indoor machines 14 of one or a plurality of air conditioners and the operation capacity c and other information into consideration, and controls the temperature of the indoor machine 14 concentrically, based on this information set anew.

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 for centrally controlling one or a plurality of air conditioners by a central controller.

[0002]

2. Description of the Related Art Generally, in a large room such as an office or a store, a plurality of indoor units of an air conditioner are installed in the same room, and the room is cooled and heated by these indoor units. is there.

[0003]

At this time, for example,
Each indoor unit may be operated at a different set temperature or operating capacity using a remote controller or the like, and as a result, temperature unevenness may occur in the same room.

[0004] When indoor units of an air conditioner are installed in a plurality of rooms of the same building, the amount of power consumption based on the total operating capacity of the indoor units exceeds the set power amount set in the building. As a result, the supplied power may be cut off by a breaker or the like.

The object of the present invention has been made in view of the above-mentioned circumstances, and an air conditioner capable of optimizing the operation of each air conditioner by centrally controlling the temperature of one or more air conditioners. It is to provide a system.

[0006]

According to the first aspect of the present invention,
In an air conditioning system that centrally controls the operation of one or more air conditioners having one or more outdoor units and indoor units by a centralized control device, the centralized control device includes one or more of the air conditioners described above. In consideration of the information including the set temperature and the operation capability requested from the indoor unit and other information, the information including the set temperature and the operation capability of the indoor unit is newly set, and the newly set information is used. Based on the above, the temperature of the indoor unit is controlled intensively.

According to a second aspect of the present invention, in the first aspect of the present invention, the other information is information relating to a set amount of power set for the entire building equipped with the air conditioning system. Is what you do.

[0008] The invention described in claim 3 is claim 1 or 2.
Wherein the other information is information regarding a limit value of a set temperature in an indoor unit of the air conditioner.

According to the invention described in claim 4, in the invention described in any one of claims 1 to 3, the other information includes information indicating that each indoor unit installed in the same room is in the same group. The information is characterized in that the information is related to the priority order defined for.

According to a fifth aspect of the present invention, in the invention of any one of the first to fourth aspects, the other information is obtained when the indoor units installed in the same room are grouped into the same group. It is characterized in that the information is information on making the set temperatures of the indoor units determined for each group substantially equal.

[0011] The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the other information is the same when indoor units installed in the same room are in the same group. The information is related to making the set temperatures of the indoor units installed in the groups of the two groups substantially equal.

The first to sixth aspects of the present invention have the following effects.

[0013] The centralized control device may newly determine the set temperature and the operating capacity and the like determined from the information including the set temperature and the operating capacity required from the indoor unit of one or more of the air conditioners and other information. The temperature of the indoor unit is controlled based on appropriate information. From this, when the other information is information on the set power amount set for the entire building equipped with the air conditioning system, the air conditioner can be operated within a range not exceeding the set power amount, Also,
In the case where the other information is information relating to a limit value of a set temperature in the indoor unit of the air conditioner, the set temperature of the indoor unit of one or more of the air conditioners is set to a value not exceeding the limit value. As a result, energy saving can be realized. Further, when the other information is a priority order defined for the indoor unit group, the operation of the indoor unit is performed based on the priority order, and the air conditioner can be efficiently operated. Further, when the other information is information relating to substantially equalizing the set temperatures of the indoor units determined for each group, the respective rooms of the same building equipped with the air conditioning system are unified to substantially the same temperature. If the other information is information relating to making the set temperatures of the indoor units installed in the same group substantially equal, the temperature unevenness in the same room can be eliminated. In this way, the air conditioning system can optimize the operation of one or more air conditioners.

[0014]

Embodiments of the present invention will be described below with reference to the drawings.

An air conditioning system 10 shown in FIG. 1 includes a plurality of air conditioners 11A and 11 installed in the same building.
The operation of B, 11C, 11D... Is centrally controlled by the centralized control device 12.

[0016] Air conditioners 11A, 11B and 11D
A single indoor unit 13 having an unillustrated indoor heat exchanger and a decompression device is connected to a single outdoor unit 13 having a compressor, an outdoor heat exchanger, an outdoor fan, etc.
The indoor unit 14 cools and heats the room. The air conditioner 11 </ b> C is configured such that a plurality of, for example, two indoor units 14 are connected to one outdoor unit 13 by a refrigerant pipe 16, and the indoor unit 14 cools and heats the room.

Of the air conditioners 11A to 11D, the indoor units 14 of the air conditioners 11A and 11B are set in the same room, and the central control unit 12 sets the indoor units 14 as the same group A. recognize. The indoor units 14 of the air conditioners 11C and 11D are installed in the same other room, and the central control device 12 recognizes these indoor units 14 as the same group B. Further, the central control device 12 recognizes the indoor unit 14 on the left side of FIG. 1 in the group A as number A1 and the indoor unit 14 on the right side as number A2. The central control device 12 sequentially assigns the indoor units 14 in the group B from the left side to the right side in FIG.
1, B2, and B3, respectively.

The power consumption of the air conditioners 11A to 11D... And other devices is input from the power meter (or ammeter) 17 to the centralized control device 12. Also,
In the centralized control device 12, a set amount of power set by a contract or the like is input to the building. Further, as shown in FIG. 2, the central control device 12 includes a room temperature t from each of the indoor units 14 of the operating air conditioners 11A to 11D, and a set temperature ts required by these indoor units 14.
And information on driving ability c and the like are input. Here, in FIG. 2, the set temperature ts input from each indoor unit 14
And room temperature t, the numbers A1, A2, B1, B
2, B3,... Are distinguished.

Further, the central control device 12 has a set temperature t in each indoor unit 14 of the air conditioners 11A to 11D... Set for the building from the viewpoint of energy saving.
The upper limit value (during the heating operation) and the lower limit value (during the cooling operation) of s are input. In addition, the centralized control device 12 includes, for example, for each room of the building, such as giving the highest priority to the operation capability of the indoor unit 14 installed in the computer room.
That is, the priorities determined for the groups A, B,... Are input.

On the basis of the input information, the centralized control device 12 sends the set temperature to the indoor units 14 of the air conditioners 11A to 11D so that the power consumption from the power meter 17 does not exceed the set power consumption. ts and driving capability c,
The air conditioners 11A to 11D are operated. Here, in FIG. 2, the set temperature ts and the operating capacity c output to each indoor unit 14 include group names A, B,.
The numbers A1, A2, B1, B2, B3,... Of the indoor units 14 are respectively distinguished.

When the set temperature ts requested by each indoor unit 14 of the air conditioners 11A to 11D exceeds the upper limit value or the lower limit value of the set temperature ts, The set temperature ts is changed so as not to exceed these upper and lower limits, and output to each indoor unit 14 to save energy.

The central control unit 12 determines the set temperature t of the indoor units 14 of the air conditioners 11A to 11D based on the priority determined for each group A, B,.
s and the operating capacity c are set, and the rooms with higher priority are preferentially cooled and heated, and the air conditioners 11A to 11D are operated efficiently.

Further, the central control unit 12 controls the air conditioners 11A to 11D so that the set temperatures ts of the indoor units 14 determined for each group A, B,.
The set temperature ts is output to the indoor unit 14 to make the temperature of each room in the building substantially the same.

The central control device 12 controls the air conditioners 11A to 11D so that the set temperatures ts of the indoor units 14 set in the same group A or B are substantially equal.
The set temperature ts is output to the indoor unit 14 to eliminate the temperature unevenness in the same room.

Therefore, according to the air-conditioning system 10 of the above embodiment, the following effects can be obtained.

The central control unit 12 determines the information including the set temperature ts and the operating capacity c requested from the indoor unit 14 of the plurality of air conditioners 11A to 11D, and other information.
The temperature of the indoor unit 14 is controlled based on new information on the set temperature ts, the operating capacity c, and the like. For this reason, when the other information is information relating to the set power amount set for the entire building equipped with the air conditioning system 10, the air conditioner 11 does not exceed the set power amount.
.. Can be operated, and when the other information is information on the upper limit value and the lower limit value of the set temperature ts in the indoor units 14 of the air conditioners 11A to 11D. The energy saving can be realized by setting the set temperature ts of the indoor unit 14 in 14D... To a value not exceeding the limit value. Further, the other information is transmitted to the indoor unit 14.
, The indoor units 14 are operated based on the priorities, and the air conditioners 11A to 11D can be operated efficiently. Further, if the other information is information relating to setting the set temperature ts of the indoor unit 14 substantially equal to each group A, B,..., Each room of the same building equipped with the air conditioning system 10 Can be managed to be substantially the same temperature. If the other information is information relating to making the set temperatures ts of the indoor units 14 installed in the same group A, B,. Eliminates uneven temperature in the room. In this manner, the air conditioning system 10 can optimize the operation of the plurality of air conditioners 11A to 11D.

As described above, the present invention has been described based on one embodiment, but the present invention is not limited to this.
For example, the air conditioners 11A to 11D... May have a plurality of outdoor units 13.

[0028]

As described above, according to the air conditioner according to the present invention, the centralized control device can determine the information including the set temperature and the operation capability requested from the indoor unit of one or more air conditioners and other information. Information, for example, when indoor units installed in the same room are grouped into the same group, indoor units installed in the same group The information including the set temperature and the operating capacity of the above is newly set, and the temperature of the indoor unit is intensively controlled based on the newly set information.
The operation of each air conditioner can be optimized.

[Brief description of the drawings]

FIG. 1 is a system diagram showing an embodiment of an air conditioning system according to the present invention.

FIG. 2 is a block diagram of the air conditioning system of FIG.

[Explanation of symbols]

 Reference Signs List 10 air conditioning system 11A, 11B, 11C, 11D air conditioning device 12 central control device 13 outdoor unit 14 indoor unit A group B group t room temperature ts set temperature c operating capacity

Claims (6)

[Claims] 1. An air conditioning system for centrally controlling the operation of one or more air conditioners having one or more outdoor units and one or more indoor units by a centralized control device, wherein the centralized control device is one or more of the above. In consideration of the information including the set temperature and the operation capability requested from the indoor unit of the air conditioner and other information, information including the set temperature and the operation capability of the indoor unit is newly set, and this newly set. An air conditioning system characterized in that the temperature of the indoor unit is intensively controlled based on the set information. 2. The air conditioning system according to claim 1, wherein the other information is information relating to a set amount of power set for the entire building equipped with the air conditioning system. 3. The air conditioning system according to claim 1, wherein the other information is information on a limit value of a set temperature in an indoor unit of the air conditioner. 4. The apparatus according to claim 1, wherein the other information is information on a priority determined for each group when indoor units installed in the same room are in the same group. The air conditioning system according to any one of the above. 5. The other information is information relating to, when indoor units installed in the same room are in the same group, setting temperatures of the indoor units determined for each group to be substantially equal. The air conditioning system according to any one of claims 1 to 4, wherein: 6. The above-mentioned other information is information relating to making the set temperatures of indoor units installed in the same group substantially equal when indoor units installed in the same room are in the same group. 6. The method according to claim 1, wherein:
The air conditioning system according to any one of the above.