KR0186056B1 - Overload control method of heat pump airconditioner - Google Patents
Overload control method of heat pump airconditioner Download PDFInfo
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- KR0186056B1 KR0186056B1 KR1019940011308A KR19940011308A KR0186056B1 KR 0186056 B1 KR0186056 B1 KR 0186056B1 KR 1019940011308 A KR1019940011308 A KR 1019940011308A KR 19940011308 A KR19940011308 A KR 19940011308A KR 0186056 B1 KR0186056 B1 KR 0186056B1
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- compressor
- heat pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
본 발명은 히트펌프 에어콘의 난방과부하 제어방법에 관한 것이다.The present invention relates to a heating overload control method of a heat pump air conditioner.
일반적으로 히트펌프식 에어콘이 난방과부하 조건하에서 난방운전시 실외기측에서의 열교환 부족으로 인한 압축기 내부의 과부하 방지기가 작동하여 압축기가 정지함으로써 실내측에 찬바람이 유입되는 현상이 발생하였다.In general, when the heat pump type air conditioner is operated under heating and overload conditions, an overload protector inside the compressor is operated due to a lack of heat exchange at the outdoor unit side, and the compressor stops, causing a cold wind to flow into the indoor side.
따라서 본 발명은 난방과부하 조건에서 운전시 압축기의 과부하 검지기가 작동하기전에 실내배관온도를 체킹하여 실내배관온도가 일정온도이상이면 압축기를 정지시키고 일정시간(1분)동안 실내팬을 설정풍량으로 제어한후 최저풍량으로 제어하고, 일정온도 이하이면 압축기를 운전시키고 일정시간(30초) 동안 실내팬을 최저풍량으로 운전하고 그 이후에는 설정풍량으로 운전하도록 함으로써 난방과부하 조건에서의 운전시의 실내측에 찬바람이 유입되는 현상을 방지할 수 있도록 한 것이다.Therefore, the present invention checks the indoor piping temperature before the overload detector of the compressor when operating under heating and overload conditions, and if the indoor piping temperature is above a certain temperature, the compressor is stopped and the indoor fan is controlled by the set air volume for a predetermined time (1 minute). Afterwards, control the minimum air volume, and if the temperature is below a certain temperature, operate the compressor and operate the indoor fan at the minimum air volume for a certain period of time (30 seconds), and then operate at the set air volume thereafter. It is to prevent the inflow of cold wind.
Description
제1도는 일반적인 에어콘의 블럭 구성도.1 is a block diagram of a general air conditioner.
제2도는 제1도에 따른 난방 실온제어도.2 is a heating room temperature control diagram according to FIG.
제3도는 종래의 동작 플로우 챠트3 is a conventional operation flowchart
제4도는 본 발명의 블럭 구성도.4 is a block diagram of the present invention.
제5도는 본 발명의 동작 플로우 챠트.5 is an operational flowchart of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 전원회로 2 : 레귤레이터1: power supply circuit 2: regulator
3 : 실내온도 검지센서 3a : 실내열교환기 온도검지센서3: room temperature sensor 3a: room heat exchanger temperature sensor
4 : 센싱회로 5 : 수신회로4 sensing circuit 5 receiving circuit
6 : 마이콤 7 : 부하구동회로6: microcomputer 7: load driving circuit
8 : 부하8: load
본 발명은 히트펌프(Heatpump) 에어콘의 난방과부하 제어방법에 관한 것으로서, 더욱 상세하게는 난방과부하 조건하에서 난방운전시 실외기측에서의 열교환 부족으로 인한 압축기 내부의 과부하 방지기가 작동하여 압축기가 정지함으로써 실내측에 찬바람이 유입되는 현상을 방지하도록 한 히트펌프 에어콘의 난방과부하 제어방법에 관한 것이다.The present invention relates to a heating overload control method for a heat pump air conditioner, and more particularly, to an indoor side by operating an overload protector inside a compressor due to a lack of heat exchange at the outdoor unit during heating operation under a heating overload condition. The present invention relates to a heating overload control method of a heat pump air conditioner to prevent a cold wind from entering.
제1도는 일반적인 히트펌프식 에어콘의 구성 블럭도를 도시한 것으로, 전원을 공급하기 위한 전원회로(1), 상기 전원회로(1)로 부터의 전압을 일정전압(5V)으로 만들기 위한 레귤레이터(2), 실내온도를 센싱하기 위한 실내온도 검지센서(3) 및 센싱회로(4), 무선리모콘의 신호를 수신하기 위한 수신회로(5), 시스템을 전반적으로 제어하는 마이콤(6), 부하를 구동하기 위한 부하구동회로(7), 난방제어를 위한 부하로써 압축기, 실외팬모터, 실내팬모터, 사방변등의 부하(8)로 구성되며, 이러한 시스템에서의 동작은 제3도와 같다.FIG. 1 is a block diagram of a general heat pump air conditioner, and includes a power supply circuit 1 for supplying power and a regulator 2 for making a voltage from the power supply circuit 1 to a constant voltage (5V). ), An indoor temperature detecting sensor 3 and a sensing circuit 4 for sensing the indoor temperature, a receiving circuit 5 for receiving a signal of a wireless remote control, a microcomputer 6 for overall control of the system, driving a load It consists of a load driving circuit (7) for the load, and a load (8) such as a compressor, an outdoor fan motor, an indoor fan motor, and four sides as a load for heating control.
우선, 난방운전시 압축기의 온/오프조건을 판단하여 실내팬을 제어하는데 있어 압축기가 운전중인 경우에는 정상적인 실내/실외의 열교환으로 인하여 실내기의 열교환기가 온도가 일정온도 이상으로 올라가기 때문에 실내팬을 설정풍량으로 제어한다. 그러나 압축기가 정지상태인 경우에는 실내기의 열교환기 온도가 저하되기 때문에 실내팬을 강하게 불어줄 경우 찬바람의 유입으로 인한 불쾌감유발을 방지하기 위하여 실내팬을 최저속도인 약풍으로 운전시킨다.First, to control the indoor fan by judging the on / off condition of the compressor during the heating operation, when the compressor is in operation, the indoor fan is heated because the heat exchanger of the indoor unit rises above a certain temperature due to normal indoor / outdoor heat exchange. Control by set air volume. However, when the compressor is stopped, the heat exchanger temperature of the indoor unit is lowered. Therefore, when the indoor fan is blown strongly, the indoor fan is operated at the lowest speed to prevent unpleasant feelings caused by the inflow of cold wind.
그리고 무선 리모콘의 설정온도에 따라서 난방 온 온도와 난방 오프 온도가 정해지는데 이에 의해서 실온검지센서로 실내온도를 검지하여 제2도와 같이 동작하게 되어 있다.The heating on temperature and the heating off temperature are determined according to the set temperature of the wireless remote controller, whereby the room temperature detection sensor detects the room temperature and operates as shown in FIG. 2.
즉, 실내온도와 설정온도와 비교하여 압축기 및 실내팬의 풍량을 제어하게 되는데, 압축기 운전중이면 설정풍량을 강, 중, 약풍중의 어느하나로, 압축기 오프중이면 무조건 약풍운전으로 제어한다.That is, the air volume of the compressor and the indoor fan is controlled by comparing with the indoor temperature and the set temperature. When the compressor is in operation, the set air volume is controlled by any one of strong, medium, and weak winds, and when the compressor is off, the air is unconditionally controlled.
그러나 실외온도가 높은 상태에서 난방운전을 하게 되면 실내/실외기의 열교환기 온도가 상승되고 실내 난방운전 그 자체에는 문제가 없으나 이 상태에서 계속운전시 압축기에 무리가 가해지므로 결국에는 압축기의 내부에 있는 과부하 검지기(Over Load Protector : OLP)가 동작하여 압축기만 정지한다.However, if the heating operation is performed at a high outdoor temperature, the heat exchanger temperature of the indoor / outdoor air is increased, and there is no problem in the indoor heating operation itself. The overload protector (OLP) operates to stop only the compressor.
따라서 이러한 상태에서는 압축기가 정지하여 난방싸이클을 형성하지 못하여 실내배관의 온도도 저하한다.Therefore, in such a state, the compressor stops and fails to form a heating cycle, so that the temperature of the indoor pipe also decreases.
그러나 마이콤은 계속 압축기가 운전하는 것으로 판단하여 실내팬을 설정풍량으로 구동하게 되어 있어 강풍, 중풍으로 선택되어 있는 경우에는 찬바람이 유입하게 되어 있어 정상적인 난방운전을 못하는 문제점이 발생하였다.However, it is determined that the microcomputer continues to operate the compressor at the set wind volume, so that when a strong wind or a middle wind is selected, cold wind flows into the air, thereby preventing normal heating operation.
본 발명은 이러한 점을 해결하기 위한 것으로, 본 발명의 목적은 난방과부하 조건에서 운전시 압축기의 과부하 검지기가 작동하기전에 실내배관온도를 체킹하여 압축기를 정지시키고 실내팬을 적정으로 제어함으로써 실내측에 찬바람이 유입되는 현상을 방지할 수 있도록 한 히트펌프 에어콘의 난방과부하 제어방법을 제공함에 있다.SUMMARY OF THE INVENTION The present invention has been made to solve this problem, and an object of the present invention is to check the indoor piping temperature before operating the compressor overload detector when operating under heating and overload conditions to stop the compressor and to control the indoor fan appropriately. It is to provide a heating and load control method of the heat pump air conditioner to prevent the cold wind flowing in.
이러한 목적을 달성하기 위한 본 발명의 특징은 난방운전 및 압축기 운전상태에서 실내배관온도를 체킹하여 제1기준온도와 비교하는 제1단계와, 실내배관온도가 상기 제1기준온도보다 높으면 압축기의 운전을 정지시키고 일정시간 실내팬을 설정풍량으로 구동후 실내팬을 최저약풍으로 구동시키는 제2단계와, 실내배관온도를 체킹하여 제2기준온도와 비교하여 제2기준온도가 실내배관온도보다 높으면 실내온도와 설정온도를 비교하는 제3단계와, 상기 제3단계에서의 비교결과 설정온도가 실내온도보다 높게 되면 압축기를 운전시키고 실내팬은 실내열교환기 온도가 상승하기전까지의 일정시간동안 약풍운전후 설정풍량으로 구동하는 제4단계로 이루어지는 히트펌프 에어콘의 난방과부하 제어방법에 있다.A feature of the present invention for achieving the above object is a first step of checking the indoor piping temperature in the heating operation and compressor operation state and comparing it with the first reference temperature, the operation of the compressor if the indoor piping temperature is higher than the first reference temperature The second step of driving the indoor fan to the set air volume for a predetermined time and then driving the indoor fan to the lowest mild wind, and if the second reference temperature is higher than the indoor pipe temperature compared to the second reference temperature by checking the indoor piping temperature, When the set temperature is higher than the room temperature as a result of comparing the temperature and the set temperature in the third step, the compressor is operated and the indoor fan is operated for a predetermined time until the indoor heat exchanger temperature rises. The heating overload control method of the heat pump air conditioner comprising a fourth step of driving at a set air volume.
이하, 본 발명의 바람직한 일실시예를 첨부도면을 참조로 하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described in detail.
제4도는 본 발명의 블럭 구성도로써, 제1도의 종래의 구성에 실내배관온도를 체킹하기 위한 실내열교환기 온도검지센서(3a)가 더 구비되어 구성되며, 이러한 본 발명을 제5도의 플로우 챠트와 함께 설명한다.FIG. 4 is a block diagram of the present invention, in which the indoor heat exchanger temperature detection sensor 3a for checking the indoor piping temperature is further provided in the conventional configuration of FIG. 1, and the present invention is a flow chart of FIG. Explain with
우선, 난방운전중이고(S1) 압축기운전상태에서(S2) 실내배관온도를 체킹하여 설정되어 있는 제1기준온도(TH℃)와비교한다(S3).First, in the heating operation (S1) and in the compressor operation state (S2), the indoor piping temperature is checked and compared with the first reference temperature (T H ° C) set (S3).
이때, 실내배관온도가 제1TH℃이상이면 난방과부하 조건으로 판단하여 압축기를 정지시키고(S4) 실내배관의 잠열을 방열시키기 위하여 일정시간(약 1분) 실내팬을 설정풍량으로 운전시키고(S5) 일정시간후에는 찬바람의 유입방지를 위하여 실내팬의 풍량을 최적풍량인 약풍으로 운전시킨다(S6).At this time, if the indoor piping temperature is 1T H ℃ or more, the compressor is stopped by judging by the heating overload condition (S4) and the indoor fan is operated with the set air volume for a predetermined time (about 1 minute) to dissipate the latent heat of the indoor piping (S5). ) After a certain time, to prevent the inflow of cold wind, the air volume of the indoor fan is operated with the mild wind, which is the optimum air volume (S6).
그리고 이 상태에서 실내배관온도와 설정되어 있는 제2기준온도(TL℃)를 비교하여 (S7) 실내배관온도가 제2TL℃이하로 저하되면 실내온도와 유저에 의해 설정된 설정온도를 비교하여 압축기 운전여부를 판단한다(S8). 여기서, TH℃ TL℃ 0℃이다.In this state, the indoor piping temperature is compared with the set second reference temperature (T L ℃). (S7) When the indoor piping temperature drops below 2T L ℃, the indoor temperature is compared with the set temperature set by the user. It is determined whether the compressor is operating (S8). Here, T H ° C T L ° C is 0 ° C.
만일, 설정온도가 실내온도보다 높게 되면 압축기를 운전시키고(S9) 실내팬은 실내열교환기 온도가 상승하기전까지의 일정시간(약 30초)동안은 약풍운전을 유지하고 그 이후에는 설정풍량으로 구동한다(S10, S11).If the set temperature is higher than the room temperature, the compressor is operated (S9), and the indoor fan maintains the low wind operation for a predetermined time (about 30 seconds) before the indoor heat exchanger temperature rises, and then operates at the set air volume thereafter. (S10, S11).
이상에서 살펴본 바와 같이 본 발명은 난방과부하 조건하에서 동작시 압축기 내부의 과부하 검지기가 동작될 경우에 압축기는 정지하더라도 실내팬은 설정풍량으로 계속 운전되어 찬바람의 세기가 높은 것을 압축기의 과부하 검지기가 동작하기전에 실내배관온도를 체킹하여 미연에 압축기를 정지하고 실내팬을 알맞게 제어함으로써 난방운전의 효율을 개선하게 된다.As described above, in the present invention, when the overload detector inside the compressor is operated under a heating overload condition, even if the compressor is stopped, the indoor fan continues to operate at the set wind volume so that the cold wind strength is high. By checking the indoor piping temperature before, the compressor is stopped beforehand and the indoor fan is properly controlled to improve the efficiency of heating operation.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940011308A KR0186056B1 (en) | 1994-05-24 | 1994-05-24 | Overload control method of heat pump airconditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940011308A KR0186056B1 (en) | 1994-05-24 | 1994-05-24 | Overload control method of heat pump airconditioner |
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| Publication Number | Publication Date |
|---|---|
| KR950033306A KR950033306A (en) | 1995-12-22 |
| KR0186056B1 true KR0186056B1 (en) | 1999-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940011308A KR0186056B1 (en) | 1994-05-24 | 1994-05-24 | Overload control method of heat pump airconditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09236332A (en) * | 1996-02-29 | 1997-09-09 | Sanyo Electric Co Ltd | Heat pump apparatus for air conditioning |
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1994
- 1994-05-24 KR KR1019940011308A patent/KR0186056B1/en not_active IP Right Cessation
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| KR950033306A (en) | 1995-12-22 |
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