JPH04161750A - Air conditioning system - Google Patents
Air conditioning systemInfo
- Publication number
- JPH04161750A JPH04161750A JP2285855A JP28585590A JPH04161750A JP H04161750 A JPH04161750 A JP H04161750A JP 2285855 A JP2285855 A JP 2285855A JP 28585590 A JP28585590 A JP 28585590A JP H04161750 A JPH04161750 A JP H04161750A
- Authority
- JP
- Japan
- Prior art keywords
- heating
- cooling
- room
- heat exchanger
- indoor heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 238000001816 cooling Methods 0.000 claims abstract description 41
- 239000003507 refrigerant Substances 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 3
- 230000008094 contradictory effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
Description
【発明の詳細な説明】
[発明の目的コ
(産業上の利用分野)
本発明は、複数の部屋の冷暖房を行う空気調和方式に関
する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention (Field of Industrial Application) The present invention relates to an air conditioning system for heating and cooling a plurality of rooms.
(従来の技術)
近年の空気装置を構成する各種機器の小形化、高性能化
に伴って、−台の室外熱交換器に対して複数の室内熱交
換器を並列接続することで、複数の部屋の冷房または暖
房を同時に行うことができる多室型の空気調和装置が一
般家庭にまで普及する傾向にある。(Prior technology) In recent years, with the miniaturization and higher performance of various devices that make up air equipment, multiple indoor heat exchangers are connected in parallel to one outdoor heat exchanger. BACKGROUND ART Multi-room air conditioners that can cool or heat rooms at the same time are becoming popular in general households.
ところで、多室型の空気調和装置では、室外熱交換器が
一台であるため、この室外熱交換器を介して暖房または
冷房に応じて冷媒の熱を空気中に排出するか、または吸
収するかのいずれか一方の熱交換作用しかできないこと
から、相反する冷房と暖房の要求が重複すると、一方の
要求に応じた空調は不可能である。しかし、春や秋の季
節においては、日照の相違や温感の個人差等により、別
々の部屋から相反する冷房および暖房の要求が重複する
場合が考えられ、部屋毎の快適性を確保するべく何らか
の対策が切望されていた。By the way, since a multi-room air conditioner has only one outdoor heat exchanger, the heat of the refrigerant is discharged into the air or absorbed through this outdoor heat exchanger depending on heating or cooling. Since only one of the heat exchange functions can be performed, if contradictory demands for cooling and heating overlap, it is impossible to perform air conditioning that meets one of the demands. However, in the spring and autumn seasons, conflicting cooling and heating requirements from different rooms may overlap due to differences in sunlight and individual differences in temperature sensation, so it is necessary to ensure comfort in each room. Some kind of countermeasure was desperately needed.
(発明が解決しようとする課題)
このように、従来の多室型の空気調和装置では、相反す
る冷房と暖房の重複要求に対して双方の要求に応じた空
調が不可能であった。(Problems to be Solved by the Invention) As described above, in conventional multi-room air conditioners, it has been impossible to perform air conditioning that meets the conflicting overlapping demands of cooling and heating.
本発明は上記に鑑みてなされたもので、その目的として
は、冷房および暖房という相反する要求が重複しても双
方の要求に応じた的確な空調ができるようにした空気調
和方式を提供することにある。The present invention has been made in view of the above, and an object of the present invention is to provide an air conditioning system that can perform accurate air conditioning that meets the conflicting demands of cooling and heating, even when these demands overlap. It is in.
[発明の構成]
(課題を解決するための手段)
上記目的を達成するため、冷媒経路に複数の室内熱交換
器が並列に接続された空気調和装置において、本発明は
、冷房および暖房の要求が重複したときには、冷房およ
び暖房の運転を交互に行うと共に、冷房および暖房の要
求に応じた所要の室内熱交換器への冷媒の供給を冷暖房
の交互運転に同期して制御することを要旨とする。[Structure of the Invention] (Means for Solving the Problem) In order to achieve the above object, the present invention provides an air conditioner in which a plurality of indoor heat exchangers are connected in parallel to a refrigerant path. The gist is to perform cooling and heating operations alternately, and to control the supply of refrigerant to the required indoor heat exchangers in response to cooling and heating requests in synchronization with the alternating cooling and heating operations. do.
(作用)
本発明に係る空気調和方式にあっては、冷房および暖房
の要求が重複したときには、冷房および暖房の運転を時
分割的に交互に行うと共に、冷房運転時には冷房要求の
あった室内熱交換器にのみ冷媒を供給し、暖房運転時に
は暖房要求のあった室内熱交換器にのみ冷媒を供給する
ようにしている。(Function) In the air conditioning system according to the present invention, when cooling and heating requests overlap, cooling and heating operations are performed alternately in a time-sharing manner, and during cooling operation, the indoor heat that was requested for cooling is Refrigerant is supplied only to the exchanger, and during heating operation, refrigerant is supplied only to the indoor heat exchanger that has received a heating request.
(実施例) 以下、図面を用いて本発明の詳細な説明する。(Example) Hereinafter, the present invention will be explained in detail using the drawings.
第1図は本発明の第一の実施例に係る空気調和装置の構
成を示す図である。同図において、1は圧縮機、3は室
外熱交換器、5は膨脹弁、7,9゜11は各部屋毎に設
けられた室内熱交換器、13゜15.17は各部屋にお
ける冷暖房の要求設定および目標温度の設定等を行う操
作部、19,21゜23.25,27.29は各室内熱
交換器7,9゜11への冷媒の供給を制御する二方弁、
31は冷媒通路33における冷媒の流れを変えて冷暖房
を切替える四方弁である。また、35は上述した空気調
和装置全体の動作を制御する制御回路である。FIG. 1 is a diagram showing the configuration of an air conditioner according to a first embodiment of the present invention. In the figure, 1 is a compressor, 3 is an outdoor heat exchanger, 5 is an expansion valve, 7, 9°, 11 is an indoor heat exchanger installed in each room, and 13°, 15, 17 is an air conditioning unit for each room. An operation unit for setting demand and target temperature, etc., 19, 21゜23.25, 27.29 are two-way valves for controlling the supply of refrigerant to each indoor heat exchanger 7, 9゜11;
31 is a four-way valve that changes the flow of refrigerant in the refrigerant passage 33 to switch between air conditioning and heating. Further, 35 is a control circuit that controls the operation of the entire air conditioner described above.
そして、この空気調和装置においては、制御回路35に
よる制御の下、四方弁31が圧縮機1を出た冷媒ガスを
室内熱交換器7,9.11に導く方向に制御され、冷媒
が高温のガスとなって圧縮機を出て室内熱交換器7,9
.11の中を通りながら室内空気に熱を排出して低温に
なり、膨脹弁5を通った後に室外熱交換器2の中を通り
ながら室外空気から熱を吸収することで、暖房を行う。In this air conditioner, under the control of the control circuit 35, the four-way valve 31 is controlled to guide the refrigerant gas exiting the compressor 1 to the indoor heat exchangers 7, 9, 11, so that the refrigerant reaches a high temperature. It becomes gas and exits the compressor and enters indoor heat exchangers 7 and 9.
.. 11, heat is discharged to the indoor air to lower the temperature, and after passing through the expansion valve 5, heat is absorbed from the outdoor air while passing through the outdoor heat exchanger 2, thereby performing heating.
また、四方弁31が圧縮機1を出た冷媒ガスを室外11
で熱を室内空気から吸収することで、冷房を行うのであ
る。In addition, the four-way valve 31 directs the refrigerant gas exiting the compressor 1 to the outdoor 11.
It cools the room by absorbing heat from the indoor air.
次に、本実施例の作用を冷房および暖房の要求が重複し
た場合について第2図のタイムチャートを用いて説明す
る。Next, the operation of this embodiment will be explained with reference to the time chart of FIG. 2 in the case where requests for cooling and heating overlap.
A室(室内熱交換器7が対応)、B室(室内熱交換器9
が対応)、C室(室内熱交換器11が対応)のうち、A
室のみが冷房状態にあるときに(期間t1)、B室の操
作部15を介して暖房要求が入ると、制御回路35は、
四方弁31を切替制御して冷暖房運転を交互に時分割的
に行わせると共に、この交互運転に同期して室内熱交換
器7に対する二方弁19.21と室内熱交換器9に対す
る二方弁23.25とを交互に開閉動作させる(期間t
2)。これにより、A室は引き続き冷房され、B室は新
たに暖房されることになる。なお、この場合の交互運転
においては、空調する部屋数が等しいので、冷房と暖房
の時間比(A:B)が1対1となっている。Room A (corresponding to indoor heat exchanger 7), Room B (corresponding to indoor heat exchanger 9)
room C (corresponds to indoor heat exchanger 11), room A (corresponds to indoor heat exchanger 11)
When only the room is in the cooling state (period t1), when a heating request is received via the operation unit 15 of room B, the control circuit 35:
The four-way valve 31 is switched and controlled to alternately perform heating and cooling operations in a time-sharing manner, and in synchronization with this alternate operation, the two-way valves 19 and 21 for the indoor heat exchanger 7 and the two-way valve for the indoor heat exchanger 9 are switched. 23 and 25 are alternately opened and closed (period t
2). As a result, room A will continue to be cooled, and room B will be newly heated. In this case, in the alternate operation, the number of rooms to be air-conditioned is the same, so the time ratio (A:B) of cooling and heating is 1:1.
この後、C室において新たに暖房要求が入ると、冷房す
る部屋数に対して暖房する部屋数が2倍となるので、冷
房と暖房の時間比を1対2として交互運転を続行するこ
とになる(期間ti)。After this, when a new request for heating is received in room C, the number of rooms to be heated will be twice as many as the number of rooms to be cooled, so we will continue to operate alternately with the time ratio of cooling and heating being 1:2. (period ti).
したがって、本実施例によれば、冷房および暖房の要求
が重複した場合、冷暖房の運転を夫々の部屋数に応じた
時間比で交互運転をするようにしたので、従来のような
不具合がなく、重複要求時に双方の要求を満足させるこ
とができる。Therefore, according to this embodiment, when requests for cooling and heating overlap, the heating and cooling operations are alternately operated at a time ratio corresponding to the number of rooms, so there are no problems like in the past. It is possible to satisfy both requests when there are duplicate requests.
なお、上述した実施例では、交互運転の時間比を変更す
ることで冷暖房の部屋数の増減に応じた適切な空調を行
うようにしているが、第3図に示す如く、圧縮機の回転
数を変えるようにしてもよく、この場合には時間比(A
:B)は一定でよい。In the above-mentioned embodiment, the time ratio of the alternate operation is changed to perform appropriate air conditioning according to the increase or decrease in the number of air-conditioned rooms, but as shown in Fig. 3, the rotation speed of the compressor may be changed, and in this case, the time ratio (A
:B) may be constant.
第4図は本発明の第2の実施例を示すタイムチヤード図
である。その特徴としては、冷暖房の交互運転の時間比
を部屋数だけでなく、目標温度と室内温度との差および
外気温とを考慮して制御するようにしたことにある。FIG. 4 is a time chart showing a second embodiment of the present invention. Its feature is that the time ratio of alternate operation of air conditioning and heating is controlled not only by the number of rooms but also by taking into account the difference between the target temperature and the indoor temperature and the outside temperature.
すなわち、A室からの冷房要求およびB室からの暖房要
求に基づいて、1対1の時間比で冷房および暖房を交互
運転している状態で(期間t4)、A室の操作部13を
介して目標温度が下げられた場合、冷房のための冷媒流
量を増加させる必要があることから、部屋数が同じでも
時間比(A:B)を冷房2に対して暖房1で交互運転さ
せるのである(期間ts)。また、この後、外気温が低
下した場合、冷房の効率は上り、暖房の効率が下がるの
で、これを調整すべく時間比(A:B)を1対1に戻し
て交互運転するのである(期間t6)。That is, while cooling and heating are being operated alternately at a 1:1 time ratio based on the cooling request from Room A and the heating request from Room B (period t4), the operation unit 13 of Room A is operated. When the target temperature is lowered, it is necessary to increase the flow rate of refrigerant for cooling, so even if the number of rooms is the same, the time ratio (A:B) is alternately operated with 2 cooling units and 1 heating unit. (period ts). Additionally, if the outside temperature drops after this, the efficiency of the air conditioner increases and the efficiency of the heating decreases, so to adjust this, the time ratio (A:B) is returned to 1:1 and alternate operation is performed. period t6).
なお、時間比については、例えば第5図に示す如き値を
データテーブルとして制御回路35に記憶させておき、
これに基づいて設定制御される。Regarding the time ratio, for example, values as shown in FIG. 5 are stored in the control circuit 35 as a data table.
Settings are controlled based on this.
したがって、本実施例によれば、前述した第一の実施例
の効果に加えて、更に各部屋毎の的確な空調を実現する
ことができる。Therefore, according to this embodiment, in addition to the effects of the first embodiment described above, it is possible to achieve more accurate air conditioning for each room.
なお、上述した実施例では、交互運転の時間比(A :
B)を変更することで冷暖房の部屋数の増減、目標温
度と室内温度との差および外気温の変化に応した適切な
空調を行うようにしているが、第6図に示す如く、圧縮
機の回転数を変えるようにしてもよく、この場合には時
間比(A : B)は一定でよい。In addition, in the above-mentioned embodiment, the time ratio of alternate operation (A:
By changing B), appropriate air conditioning is performed according to the increase or decrease in the number of air-conditioned rooms, the difference between the target temperature and the indoor temperature, and changes in the outside temperature.As shown in Figure 6, the compressor The number of rotations may be changed, and in this case, the time ratio (A:B) may be constant.
[発明の効果]
以上説明したように本発明によれば、冷房および暖房の
要求が重複したときには、冷房および暖房の運転を時分
割的に交互に行うと共に、冷房運転時には冷房要求のあ
った突内熱交換器にのみ冷媒を供給し、暖房運転時には
暖房要求のあった突内熱交換器にのみ冷媒を供給するよ
うにしたので、冷房および暖房という相反する要求が重
複しても双方の要求に応じた的確な空調ができる。[Effects of the Invention] As explained above, according to the present invention, when cooling and heating requests overlap, cooling and heating operations are performed alternately in a time-sharing manner, and during cooling operation, an unexpected cooling request is performed. Refrigerant is supplied only to the internal heat exchanger, and during heating operation, refrigerant is supplied only to the internal heat exchanger that has a heating request, so even if contradictory demands for cooling and heating overlap, the requirements for both are met. Accurate air conditioning is possible according to the situation.
第1図は本発明の第一の実施例の構成を示す図、第2図
および第3図は当該第一の実施例の作用を説明するため
のタイムチャート図、第4図は本発明の第二の実施例の
作用を示すタイムチャート図、第5図は当該第二の実施
例を説明するための図、第6図は当該2の実施例の変形
例を示すタイムチャート図である。
1・・・圧縮機
3・・・室外熱交換器
5・・・膨脂弁
31・・・四方弁
33・・・冷媒通路
35・・・制御回路FIG. 1 is a diagram showing the configuration of the first embodiment of the present invention, FIGS. 2 and 3 are time charts for explaining the operation of the first embodiment, and FIG. 4 is a diagram showing the configuration of the first embodiment of the present invention. FIG. 5 is a time chart diagram showing the operation of the second embodiment, FIG. 5 is a diagram for explaining the second embodiment, and FIG. 6 is a time chart diagram showing a modification of the second embodiment. 1... Compressor 3... Outdoor heat exchanger 5... Fat expansion valve 31... Four-way valve 33... Refrigerant passage 35... Control circuit
Claims (1)
調和装置において、冷房および暖房の要求が重複したと
きには、冷房および暖房の運転を交互に行うと共に、冷
房および暖房の要求に応じた所要の室内熱交換器への冷
媒の供給を冷暖房の交互運転に同期して制御することを
特徴とする空気調和方式。In an air conditioner in which multiple indoor heat exchangers are connected in parallel to the refrigerant path, when cooling and heating requests overlap, cooling and heating operations are performed alternately, and the required operation is performed according to the cooling and heating requests. An air conditioning system characterized by controlling the supply of refrigerant to an indoor heat exchanger in synchronization with the alternating operation of air conditioning and heating.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2285855A JPH04161750A (en) | 1990-10-25 | 1990-10-25 | Air conditioning system |
EP91118140A EP0482629B1 (en) | 1990-10-25 | 1991-10-24 | Air-conditioning apparatus |
DE69115434T DE69115434T2 (en) | 1990-10-25 | 1991-10-24 | Air conditioner |
KR1019910018942A KR950012148B1 (en) | 1990-10-25 | 1991-10-25 | Airconditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2285855A JPH04161750A (en) | 1990-10-25 | 1990-10-25 | Air conditioning system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04161750A true JPH04161750A (en) | 1992-06-05 |
Family
ID=17696928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2285855A Pending JPH04161750A (en) | 1990-10-25 | 1990-10-25 | Air conditioning system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04161750A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100657801B1 (en) * | 2004-09-04 | 2006-12-15 | 삼성전자주식회사 | A method of controllong an air conditioner |
JP2013019582A (en) * | 2011-07-11 | 2013-01-31 | Azbil Corp | Air-conditioning controlling system and air-conditioning controlling method |
US20170003044A1 (en) * | 2015-07-01 | 2017-01-05 | Carrier Corporation | Simultaneous heating and cooling of multiple zones |
-
1990
- 1990-10-25 JP JP2285855A patent/JPH04161750A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100657801B1 (en) * | 2004-09-04 | 2006-12-15 | 삼성전자주식회사 | A method of controllong an air conditioner |
JP2013019582A (en) * | 2011-07-11 | 2013-01-31 | Azbil Corp | Air-conditioning controlling system and air-conditioning controlling method |
US9217575B2 (en) | 2011-07-11 | 2015-12-22 | Azbil Corporation | Air-conditioning controlling system and air-conditioning controlling method |
US20170003044A1 (en) * | 2015-07-01 | 2017-01-05 | Carrier Corporation | Simultaneous heating and cooling of multiple zones |
US11054160B2 (en) * | 2015-07-01 | 2021-07-06 | Carrier Corporation | Simultaneous heating and cooling of multiple zones |
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