KR100474334B1 - Electric expension valve control method for multi type airconditioner - Google Patents
Electric expension valve control method for multi type airconditioner Download PDFInfo
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- KR100474334B1 KR100474334B1 KR10-2002-0031393A KR20020031393A KR100474334B1 KR 100474334 B1 KR100474334 B1 KR 100474334B1 KR 20020031393 A KR20020031393 A KR 20020031393A KR 100474334 B1 KR100474334 B1 KR 100474334B1
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- expansion valve
- reference opening
- opening
- stored reference
- air conditioner
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000010977 unit operation Methods 0.000 abstract description 7
- 239000003507 refrigerant Substances 0.000 description 10
- 238000004378 air conditioning Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2513—Expansion valves
Abstract
본 발명은 멀티형 공기조화기의 전자 팽창밸브 제어방법에 관한 것으로, 실내기를 이전 운전시에 기억된 기준 개도로 전자 팽창밸브를 열어 운전시킴으로써, 전자팽창밸브를 신속하게 수렴하여 소음을 저감시키도록 한 것이다. 이를 위하여 본 발명은 멀티형 공기조화기에 있어서, 사용자에 의해, 실내기 운전 모드가 선택되었는지를 판단하는 제1 과정과; 상기 제 1과정의 판단결과,실내기 운전모드이고 초기운전이면, 기억된 기준개도가 존재하는지를 판단하는 제2 과정과; 상기 제2과정의 판단결과,기억된 기준개도가 존재하지 않으면 설정되어 있는 기준개도로 운전하고, 기억된 기준개도가 존재하면 그 기억된 기준개도로 전자팽창밸브를 오픈시킨후 정시 운전제어하는 제3 과정과; 상기 정시 운전 제어하면서, 전자 팽창 밸브의 개도가 일정시간 동안 소정 개도로 유지되면, 이전에 기억된 기준개도를 업데이트하는 동작을 반복하는 제4 과정으로 수행한다.The present invention relates to a control method of an electronic expansion valve of a multi-type air conditioner, and to operate an indoor unit by opening and operating an electronic expansion valve at a reference opening stored in a previous operation, so as to quickly converge the electromagnetic expansion valve to reduce noise. will be. To this end, the present invention provides a multi-type air conditioner, comprising: a first process of determining, by a user, whether an indoor unit operation mode is selected; A second step of judging whether the stored reference degree exists in the indoor operation mode and the initial operation as a result of the determination of the first step; As a result of the determination of the second step, if the stored reference opening does not exist, the driving unit is set to the set reference opening, and if the stored reference opening exists, 3 courses; If the opening degree of the electromagnetic expansion valve is maintained for a predetermined time while the scheduled operation is controlled, a fourth process of repeating the operation of updating the previously stored reference opening degree is performed.
Description
본 발명은 멀티형 공기조화기의 전자 팽창밸브 제어방법에 관한 것으로, 특히 실내기를 이전 운전시에 기억된 기준 개도로 전자 팽창밸브를 열어 운전시키도록 한 멀티형 공기조화기의 전자 팽창밸브 제어방법에 관한 것이다.The present invention relates to a method for controlling an electronic expansion valve of a multi-type air conditioner, and more particularly, to a method for controlling an electronic expansion valve of a multi-type air conditioner in which an indoor expansion valve is opened and operated at a reference opening stored in a previous operation. will be.
일반적으로 실외기는, 압축기와 실외측열교환기 및 냉매관에 연결되는 밸브등으로 이루어지고, 실내기는 실내측열교환기와 모세관 또는 전자팽창밸브 및 밸브 등으로 이루어지는데, 에어컨은 압축기에 의해 고온고압의 기체상태로 압축된 냉매가 실외측열교환기로 토출되면 실외측열교환기에서는 고온고압으로 압축된 기체냉매를 냉각팬에 의해 송풍되는 공기로 열교환하여 냉매를 강제냉각시켜 액화한다.In general, the outdoor unit is composed of a valve connected to a compressor, an outdoor side heat exchanger, and a refrigerant pipe, and the indoor unit is composed of an indoor side heat exchanger, a capillary tube, an electromagnetic expansion valve, and a valve. When the refrigerant compressed in the state is discharged to the outdoor side heat exchanger, the outdoor side heat exchanger exchanges the gas refrigerant compressed to high temperature and high pressure with air blown by a cooling fan to forcibly cool the refrigerant to liquefy.
이어서 상기 실외측열교환기에서 약 35℃-40℃로 온도가 저하된 고압의 액상냉매는 증발압력까지 팽창시키는 모세관을 통과하면서 저온저압의 기체와 액체로 공존하는 냉매로 되어 실내측열교환기에 유입된다.Subsequently, the high-pressure liquid refrigerant whose temperature is reduced to about 35 ° C.-40 ° C. in the outdoor side heat exchanger is introduced into the indoor heat exchanger as a refrigerant that coexists with gas and liquid of low temperature and low pressure while passing through a capillary tube that expands to the evaporation pressure. .
한편 상기 실내측열교환기로 유입된 냉매는 실내측열교환기를 통과하면서 기화할 때 실내팬에 의해 송풍되는 공기에서 열을 빼앗아 실내공기를 냉각시킨 다음, 그 냉각된 공기(냉풍)를 실내로 토출해서 냉방을 행하고, 상기 실내측열교환기에서 상변화된 저온저압의 기체냉매는 다시 압축기에 의해 흡입되어 반복순환하는 냉동싸이클을 형성한다.Meanwhile, the refrigerant introduced into the indoor heat exchanger takes heat from the air blown by the indoor fan when evaporated while passing through the indoor heat exchanger, cools the indoor air, and then discharges the cooled air (cold air) into the room to cool it. The low temperature and low pressure gas refrigerant, which is changed in phase in the indoor side heat exchanger, is again sucked by the compressor to form a recirculating refrigeration cycle.
그런데 이와같은 냉동싸이클에 의해 냉방을 수행하는 공기조화기는 하나의 실외기로 하나의 실내기를 제어하여 개별냉방을 수행하기 때문에 여러방을 동시에 냉방시킬 수 없는 결점이 있음은 물론, 다수개의 실내기로 여러방을 냉방할 경우에는 다수개의 실외기를 설치해야 하므로 설치공간을 확보하기가 곤란하고 미관도 좋지 않은 결점이있었다.However, the air conditioner that performs cooling by such a refrigeration cycle has the disadvantage that it is not possible to cool several rooms at the same time because it controls individual indoor units by one outdoor unit to perform individual cooling, and many rooms with multiple indoor units. In the case of cooling, it is difficult to secure the installation space because it requires the installation of a plurality of outdoor units, and the aesthetics were also poor.
이를 해결하기 위해, 멀티형 공기조화기가 개발되었는데,그 멀티형 공조기는 하나의 실외기와 다수의 실내기로 구성된다.In order to solve this problem, a multi-type air conditioner has been developed, and the multi-type air conditioner is composed of one outdoor unit and a plurality of indoor units.
상기 실외기는 냉매가 응축되어 발생되는 열을 방열시키는 응축기,냉매를 압축하여 고압으로 만드는 압축기와, 상기 응축기가 냉각되도록 공기를 유동시키는 송풍장치가 구비된다.The outdoor unit includes a condenser for radiating heat generated by condensation of a refrigerant, a compressor for compressing a refrigerant to a high pressure, and a blower for flowing air to cool the condenser.
그리고, 상기 실내기는 실내공기를 흡입하여 토출시키는 송풍장치와, 흡입공기를 냉각시키도록 공기유로상에 열교환기가 구비된다.The indoor unit includes a blower that sucks and discharges indoor air, and a heat exchanger on an air flow path to cool the suction air.
상술한 멀티형 공기조화기는, 싱글 에어컨과는 달리, 전자팽창밸브가 실내기에 위치되는데, 그 전자팽창밸브는 실내기의 배관온도에 따라서 개도를 열거나 닫는 방향으로 조절된다.Unlike the single air conditioner, the above-described multi-type air conditioner has an electromagnetic expansion valve located in the indoor unit, and the electromagnetic expansion valve is adjusted in the direction of opening or closing the opening degree according to the pipe temperature of the indoor unit.
상술한 멀티형 공기조화기는,초기 전원팽찰밸브의 기준개도가 잘못 설정되는 경우에 정시제어에 의해 개도를 수렴하는 시간이 오래 걸리고, 이로 인해 오랫동안 소음이 발생하는 문제점이 있다.The multi-type air conditioner described above has a problem in that it takes a long time to converge the opening degree by timely control when the reference opening degree of the initial power supply valuation valve is set incorrectly, thereby causing noise for a long time.
또한, 수렴된 개도는 외부온도나 설치환경등의 외부요소에 의해서도 변할 수있기 때문에 일정하게 기준개도를 설정하기 어려운 문제점이 있다.In addition, since the converged opening degree can also be changed by external factors such as an external temperature or an installation environment, there is a problem that it is difficult to constantly set the reference opening degree.
본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 실내기를 이전 운전시에 기억된 기준 개도로 전자 팽창밸브를 열어 운전시킴으로써, 전자팽창밸브를 신속하게 수렴하여 소음을 저감시키도록 한 멀티형 공기조화기의 전자 팽창밸브 제어방법을 제공함에 그 목적이 있다. The present invention has been made to solve the above problems, the multi-type air to reduce the noise by quickly converging the electromagnetic expansion valve by operating the indoor expansion valve by opening the indoor unit to the reference opening memorized in the previous operation It is an object of the present invention to provide a method for controlling an electronic expansion valve of a conditioner.
상기와 같은 목적을 달성하기 위한 본 발명은, 멀티형 공기조화기에 있어서,사용자에 의해, 실내기 운전 모드가 선택되었는지를 판단하는 제1 과정과; 상기 제 1과정의 판단결과,실내기 운전모드이고 초기운전이면, 기억된 기준개도가 존재하는지를 판단하는 제2 과정과; 상기 제2과정의 판단결과,기억된 기준개도가 존재하지 않으면 설정되어 있는 기준개도로 운전하고, 기억된 기준개도가 존재하면 그 기억된 기준개도로 전자팽창밸브를 오픈시킨후 정시 운전제어하는 제3 과정과; 상기 정시 운전 제어하면서, 전자 팽창 밸브의 개도가 일정시간 동안 소정 개도로 유지되면, 이전에 기억된 기준개도를 업데이트하는 동작을 반복하는 제4 과정으로 수행함을 특징으로 한다.According to an aspect of the present invention, there is provided a multi-type air conditioner, including: a first process of determining, by a user, whether an indoor unit operation mode is selected; A second step of judging whether the stored reference degree exists in the indoor operation mode and the initial operation as a result of the determination of the first step; As a result of the determination of the second step, if the stored reference opening does not exist, the driving unit is set to the set reference opening, and if the stored reference opening exists, 3 courses; When the opening degree of the electromagnetic expansion valve is maintained for a predetermined time while the timing operation is controlled, it is characterized in that the fourth step of repeating the operation of updating the previously stored reference opening degree.
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이하, 본 발명에 의한 멀티형 공기조화기의 전자 팽창 밸브 제어방법에 대한 작용 및 효과를 첨부한 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the operation and effects of the control method of the electronic expansion valve of the multi-type air conditioner according to the present invention will be described in detail.
도1은 본 발명 멀티형 공기조화기의 전자팽창 밸브 제어방법에 대한 동작흐름도로서, 이에 도시한 바와같이 사용자에 의해, 실내기 운전 모드가 선택되었는지를 판단하는 제1 과정과; 상기 제 1과정의 판단결과,실내기 운전모드이고 초기운전이면, 기억된 기준개도가 존재하는지를 판단하는 제2 과정과; 상기 제2과정의 판단결과,기억된 기준개도가 존재하지 않으면 설정되어 있는 기준개도로 운전하고, 기억된 기준개도가 존재하면 그 기억된 기준개도로 전자팽창밸브를 오픈시킨후 정시 운전제어하는 제3 과정과; 상기 정시 운전 제어하면서, 전자 팽창 밸브의 개도가 일정시간 동안 소정 개도로 유지되면, 이전에 기억된 기준개도를 업데이트하는 동작을 반복하는 제4 과정으로 이루어진다.1 is a flowchart illustrating a method for controlling an electronic expansion valve of a multi-type air conditioner according to the present invention. As shown in FIG. 1, a first process of determining whether an indoor unit operation mode is selected by a user; A second step of judging whether the stored reference degree exists in the indoor operation mode and the initial operation as a result of the determination of the first step; As a result of the determination of the second step, if the stored reference opening does not exist, the driving unit is set to the set reference opening, and if the stored reference opening exists, 3 courses; If the opening degree of the electromagnetic expansion valve is maintained for a predetermined time while the timing operation is controlled, a fourth process of repeating the operation of updating the previously stored reference opening degree is performed.
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이와같은 본 발명의 동작을 설명한다.Such operation of the present invention will be described.
먼저, 사용자에 의해, 초기 전원이 공급된후, 실내기 운전모드로 전환되어 실내기가 운전되면, 이전에 기억된 기준개도로 전자 팽창 밸브를 오픈시킨다.First, when the initial power is supplied by the user and then the indoor unit operation mode is switched to operate the indoor unit, the electronic expansion valve is opened at the previously stored reference opening degree.
즉, 사용자에 의해, 실내기 운전 모드가 선택되었는지를 판단하여, 그 판단결과 실내기 운전모드가 아니면 전자 팽창 밸브를 클로우즈 시키고, 실내기 운전모드이고 초기 운전이면, 기억된 기준개도가 존재하는지를 판단한다.That is, by the user, it is determined whether the indoor unit operation mode is selected, and as a result of the determination, the electronic expansion valve is closed when the indoor unit operation mode is not, and it is determined whether the stored reference opening exists when the indoor unit operation mode is the initial operation.
상기 판단결과, 기억된 기준개도가 존재하지 않으면, 정해진 기준개도로 운전하고, 기억된 기준개도가 존재하면 그 기억된 기준개도로 전자팽창밸브를 오픈시킨다.As a result of the determination, if the stored reference opening does not exist, the operation is performed at a predetermined reference opening. If the stored reference opening exists, the electronic expansion valve is opened at the stored reference opening.
그 다음, 상기 전자팽찰밸브가 기준개도로 오픈된 상태에서, 실내기를 정시 운전제어한다.Then, in the state where the electromagnetic expansion valve is opened at the reference opening degree, the indoor unit is controlled at the timely operation.
이때, 상기 정시 공조 운전제어시, 전자 팽창밸브의 개도는 가변되는데, 즉 정시 운전제어를 수행하여 전자 팽창밸브가 일정 개도로 수렴되고, 그 수렴된 개도가 일정시간 이상 지속되면 그 개도를 기준개도로 기억한다.At this time, in the timely air conditioning operation control, the opening degree of the electromagnetic expansion valve is variable, that is, the electromagnetic expansion valve converges to a certain opening degree by performing the regular operation control, and if the converged opening degree lasts for a predetermined time, the opening degree is referred to the reference opening degree. Remember to.
그리고, 상기 정시 공조 운전중에, 다른 개도로 변화되어 다시 일정시간 이상 지속되면 그 변화된 개도로 기준개도를 업데이트한다.In addition, during the regular air conditioning operation, if the change is made to another opening degree and continues for a predetermined time again, the reference opening degree is updated.
이때, 실내기가 오프된후,다시 온되는 경우에 기억해 놓은 기준펄스로 개도를 오픈시키후 정시 공조 운전제어를 수행하는데, 안전을 위하여 기준 펄스에 일정한 값을 곱하여 사용한다.In this case, when the indoor unit is turned off and then turned on again, the air conditioning operation control is performed after opening the opening degree with the stored reference pulse and multiplying the reference pulse by a constant value for safety.
즉, 초기전원이 온되고, 실내기가 운전되면, 이전 운전시에 기저장된 기준개도로 전자팽창밸브를 오픈시킨 상태에서 정시 공조 운전 제어를 수행하며, 그 정시 공조 운전제어를 수행하여 전자팽창밸브가 일정개도로 수렴된후 일정 시간이상 지속되면 그 개도를 새로운 기준개도로 저장하고, 새로운 개도로 운전되어 일정시간 이상 지속되면 그 새로운 개도로 기준개도를 업데이트한후, 실내기가 오프된후 다시 온되면, 업데이트된 기준개도로 전자팽창밸브를 오픈시킨후 정시 공조운전을 수행한다.That is, when the initial power is turned on and the indoor unit is operated, the air conditioning operation control is performed on a condition that the electronic expansion valve is opened at the reference opening previously stored in the previous operation. If it lasts for a certain time after convergence to a certain opening, the opening is stored as a new reference opening, and if the driving continues for a certain time, the new opening is updated after updating the reference opening. On the other hand, open the electronic expansion valve with the updated standard opening and perform the air conditioning on time.
상기 본 발명의 상세한 설명에서 행해진 구체적인 실시 양태 또는 실시예는 어디까지나 본 발명의 기술 내용을 명확하게 하기 위한 것으로 이러한 구체적 실시예에 한정해서 협의로 해석해서는 안되며, 본 발명의 정신과 다음에 기재된 특허 청구의 범위내에서 여러가지 변경 실시가 가능한 것이다.The specific embodiments or examples made in the detailed description of the present invention are intended to clarify the technical contents of the present invention to the extent that they should not be construed as limited to these specific embodiments and should not be construed in consultation. Various changes can be made within the scope of.
이상에서 상세히 설명한 바와같이 본 발명은, 실내기를 이전 운전시에 기억된 기준 개도로 전자 팽창밸브를 열어 운전시킴으로써,전자팽창밸브를 신속하게 수렴하여 소음을 저감시키는 효과가 있다.As described in detail above, the present invention has the effect of rapidly converging the electromagnetic expansion valve to reduce noise by opening and operating the indoor expansion valve at the reference opening stored in the previous operation.
도1은 본 발명 멀티형 공기조화기의 전자팽창밸브 제어방법에 대한 일실시예의 동작흐름도.1 is a flow chart of an embodiment of a control method of the electronic expansion valve of the present invention multi-type air conditioner.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100978442B1 (en) | 2005-05-30 | 2010-08-26 | 다이킨 고교 가부시키가이샤 | Humidity conditioner |
| CN105783350A (en) * | 2014-12-16 | 2016-07-20 | 青岛海尔空调器有限总公司 | Control method and device for air conditioner electronic expansion valve |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100710051B1 (en) * | 2005-05-23 | 2007-04-20 | 주식회사 대우일렉트로닉스 | Method for driving silentness of air-conditioner |
| CN104501303A (en) * | 2014-11-24 | 2015-04-08 | 广东美的制冷设备有限公司 | Multi-split air conditioner and refrigerant circulation control method |
| CN106196764B (en) * | 2016-07-19 | 2019-05-14 | 青岛海信日立空调系统有限公司 | A kind of control method and device of electric expansion valve |
| KR101954150B1 (en) * | 2017-05-23 | 2019-03-05 | 엘지전자 주식회사 | Air conditioner and Method for controlling it |
| CN108224689B (en) * | 2017-12-01 | 2020-11-17 | 青岛海尔空调电子有限公司 | Noise control method and controller of multi-connected air conditioning system |
| KR102465985B1 (en) * | 2018-02-23 | 2022-11-10 | 엘지전자 주식회사 | Method for controlling electronic expansion valve of air conditioning facility |
| CN109028492B (en) * | 2018-08-14 | 2019-10-11 | 宁波奥克斯电气股份有限公司 | Expansion valve control method, device and air conditioner |
| CN110986224B (en) * | 2019-11-07 | 2021-05-14 | 珠海格力电器股份有限公司 | Air conditioner, control method thereof and storage medium |
| CN114484719A (en) * | 2022-01-17 | 2022-05-13 | 青岛海尔空调电子有限公司 | Method and device for controlling air conditioner and air conditioner |
| CN114543328B (en) * | 2022-01-17 | 2023-11-21 | 青岛海尔空调器有限总公司 | Method and device for controlling air conditioner, air conditioner and storage medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100978442B1 (en) | 2005-05-30 | 2010-08-26 | 다이킨 고교 가부시키가이샤 | Humidity conditioner |
| CN105783350A (en) * | 2014-12-16 | 2016-07-20 | 青岛海尔空调器有限总公司 | Control method and device for air conditioner electronic expansion valve |
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