KR960006198Y1 - Compressor protecting circuit of refrigerator - Google Patents
Compressor protecting circuit of refrigerator Download PDFInfo
- Publication number
- KR960006198Y1 KR960006198Y1 KR92017968U KR920017968U KR960006198Y1 KR 960006198 Y1 KR960006198 Y1 KR 960006198Y1 KR 92017968 U KR92017968 U KR 92017968U KR 920017968 U KR920017968 U KR 920017968U KR 960006198 Y1 KR960006198 Y1 KR 960006198Y1
- Authority
- KR
- South Korea
- Prior art keywords
- compressor
- refrigerator
- temperature
- cooler
- power
- Prior art date
Links
Classifications
-
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/077—Compressor control units, e.g. terminal boxes, mounted on the compressor casing wall containing for example starter, protection switches or connector contacts
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
내용없음.None.
Description
제1도는 본 고안에 따른 회로도.1 is a circuit diagram according to the present invention.
제2도는 본 고안에 의한 흐름도.2 is a flow chart according to the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
TH : 온도검출 소자 10 : 제어부TH: temperature detection element 10: control part
20 : 직류전원부 CP : 압축기20: DC power unit CP: compressor
30 : 냉각기 온도검출부 40 : 압축기 구동부30: cooler temperature detection unit 40: compressor drive unit
본 고안은 냉장고 압축기의 보호회로에 관한 것으로, 특히 냉장고의 초기 전원인가시나 정전후 재전원인가시에 발생될 수 있는 압축기의 구속으로 인한 압축기의 소손을 방지할 수 있도록 한 냉장고의 압축기 보호회로에 관한 것이다.The present invention relates to a protection circuit of a refrigerator compressor, and more particularly, to a compressor protection circuit of a refrigerator which can prevent the compressor from being burned out due to the restraint of the compressor, which may occur when the refrigerator is initially supplied with power or after the power failure. It is about.
종래에는 정전후 재전원인가시나 초기 전원인가시에 발생될 수 있는 압축기의 구속을 방지하기 위한 일환으로 백업(BACK-UP) 콘덴서를 사용하여 순간 정전시 정전되기 직전의 상태를 냉장고 회로 제어의 신호처리부인 마이크로 컴퓨터가 기억하도록 하여 재전원인가시 압축기의 무조건 기동을 방지하도록 하였거나, 마이크로 컴퓨터의 내장 프로그램에 의해 순간정전시나 초기 전원인가시에 무조건 지연시간(예를 들어 6분으로 압축기가 구동되도록 구속되지 않는 최소의 시간)을 두어 압축기를 구동하도록 하였다.Conventionally, the signal processing of the refrigerator circuit control is performed by using a BACK-UP condenser to prevent the compressor from being restrained when the power is applied again or the initial power is applied after the power failure. The denial microcomputer should be remembered to prevent the compressor from starting unconditionally upon re-powering, or the delay time (for example, the compressor will run for 6 minutes at the moment of power failure or initial power-up by the microcomputer's built-in program). The minimum time that is not allowed) is allowed to run the compressor.
그러나 상기 종래의 방식은 백업 콘덴서를 추가로 사용하는 데에서 오는 비용의 상승을 초래했고, 후자의 경우 전원인가시 무조건 6분동안을 기다려야 압축기가 구동하게 되어 처음 냉장고를 구입한 사용자들은 6분의 지연시간으로 인해 큰 의아감(疑訝感)을 느껴왔다.However, the conventional method has caused an increase in the cost of using an additional backup capacitor, and in the latter case, when the power is turned on, the compressor must be waited for 6 minutes. The delay time has caused a great sense of doubt.
따라서, 본 고안은 상기한 문제점을 감안하여 안출한 것으로, 냉각기의 온도는 압축기의 운전상태와 밀접한 관계에 있음을 착안하되, 냉각기의 온도가 일정온도(3.5℃) 이하이면 압축기가 정지한 뒤 6분이 경과되지 아니하였음을 판단하도록 하여 초기 전원인가시나 정전후 재전원인가시에 냉각기의 온도를 검출하여 지연시간(6분)을 줄 수 있도록 함으로써 압축기가 정지한 뒤 6분이 경과되지 않은 상태에서 압축기가 다시 구동하여 압축기가 구속되고 결국은 압축기의 소손되는 것을 방지할 수 있도록 한 냉장고의 압축기 보호회로를 제공하는 데에 본 고안의 목적이 있다.Therefore, the present invention has been devised in view of the above-mentioned problems, and it is noted that the temperature of the cooler is closely related to the operation state of the compressor, but if the temperature of the cooler is lower than a predetermined temperature (3.5 ° C.), the compressor stops after 6 Determining that the minute has not elapsed, and allowing the delay time (6 minutes) to be detected by detecting the temperature of the cooler during initial power-up or re-power-on after power failure. It is an object of the present invention to provide a compressor protection circuit of a refrigerator to be driven again to prevent the compressor from being confined and eventually burned out of the compressor.
이하 첨부된 도면에 의거하여 본 고안을 설명한다.Hereinafter, the present invention will be described based on the accompanying drawings.
제1도는 본 고안에 따른 회로도를 나타낸 것으로, 본 고안에 따른 일정프로그램을 내장한 원칩 마이크로 컴퓨터인 제어부(10)의 입력포트(P2)에는 온도 검출소자(TH), 저항(R1), (R2) 및 콘덴서(C)로 구성된 냉각기 온도 검출부(30)가 접속되어 미도시된 냉각기에 부착된 온도검출소자(TH)의 온도에 따른 저항값의 변화로 그 일정신호를 제어부(10)의 입력포트(P2)로 입력하게 되고, 제어부(10)는 이러한 입력신호를 토대로 냉각기의 온도를 인식하게 된다.1 shows a circuit diagram according to the present invention. The input port P2 of the control unit 10, which is a one-chip microcomputer incorporating a schedule program according to the present invention, has a temperature detecting element TH, a resistor R1, and an R2. ) Is connected to a cooler temperature detector (30) consisting of a condenser (C) and changes the resistance value according to the temperature of the temperature detector (TH) attached to the cooler (not shown). Input to (P2), the control unit 10 recognizes the temperature of the cooler based on the input signal.
한편, 제어부(10)의 출력포트(P1)에는 인버터(IV), 릴레이(RY) 및 압축기(CP)로 구성된 압축기 구동부(40)가 접속되어 제어부(10)의 출력포트(P1)로 출력된 하이신호에 의해 릴레이(RY)는 통전되고 그 결과 압축기(CP)에 전원(AC)이 인가되어 압축기(CP)로 구동하는 것이다.On the other hand, a compressor driving unit 40 composed of an inverter IV, a relay RY, and a compressor CP is connected to the output port P1 of the control unit 10 and output to the output port P1 of the control unit 10. The relay RY is energized by the high signal, and as a result, the power source AC is applied to the compressor CP to drive the compressor CP.
또한, 교류(AC)입력단에는 직류전원부(20)가 연결되어 교류신호(AC)를 일정 직류(Vcc) 성분으로 레벨변환하여 제어부(10) 및 각 구동부(30), (40)에 직류전압(Vcc)을 공급하여 준다.In addition, a DC power supply unit 20 is connected to the AC input terminal to level-change the AC signal AC to a predetermined direct current (Vcc) component to control the control unit 10 and each of the driving units 30 and 40 with a DC voltage ( Supply Vcc).
상기와 같이 구성시켜서 된 본 고안의 작용 및 효과를 제2도의 흐름도를 참조하여 설명한다.The operation and effects of the present invention constructed as described above will be described with reference to the flowchart of FIG.
본 고안이 적용된 냉장고에 초기 전원(AC)이 인가되거나, 순간 정전이후 재전원이 인가되면, 제어부(10)는 냉각기 온도 검출부(30)를 통해 입력되는 냉각기 온도값을 읽어들인다.When the initial power (AC) is applied to the refrigerator to which the present invention is applied, or a re-power is applied after a momentary power failure, the controller 10 reads the cooler temperature value input through the cooler temperature detector 30.
이때 읽어들인 냉각기 온도가 3.5℃이하 인가를 판단하게 되며 3.5℃이하가 아닐 경우 통상의 압축기(CP) 구동명령을 압축기 구동부(40)로 출력하지만 3.5℃이하의 온도가 검출되면 압축기(CP)가 구동한 뒤 6분이 경과하지 못하여 압축기(CP)가 구속될 수 있는 상태임을 판단하여 압축기 구동부(40)로 출력을 보류하여 지연시간을 6분 가지게 되며 6분이 경과하면 통상의 압축기 구동 명령체계로 전환한다.At this time, it is determined whether the temperature of the cooler read is 3.5 ° C. or lower. If the temperature is not 3.5 ° C. or lower, a normal compressor (CP) driving command is output to the compressor drive unit 40. However, when the temperature of 3.5 ° C. or lower is detected, the compressor CP is detected. After 6 minutes of driving, it is determined that the compressor (CP) can be restrained and the output is held by the compressor driving unit 40 to have a delay time of 6 minutes, and after 6 minutes, the normal compressor driving command system is switched. do.
이상에서와 같이 본 고안은 냉각기 온도의 일정값에 따라 압축기의 구속상태 돌입을 판단하여 압축기를 구동시킴으로써 종래에 비해 불필요한 지연시간 및 가격의 상승 등을 배제함과 동시에 진정한 압축기 보호회로 기능을 할 수 있는 유용한 고안이다.As described above, the present invention can operate the compressor by determining the inrush state of the compressor according to a constant value of the cooler temperature, thereby eliminating unnecessary delay time and increase in price, and functioning as a true compressor protection circuit. That is a useful design.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92017968U KR960006198Y1 (en) | 1992-09-22 | 1992-09-22 | Compressor protecting circuit of refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR92017968U KR960006198Y1 (en) | 1992-09-22 | 1992-09-22 | Compressor protecting circuit of refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940008229U KR940008229U (en) | 1994-04-18 |
| KR960006198Y1 true KR960006198Y1 (en) | 1996-07-22 |
Family
ID=19340436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR92017968U KR960006198Y1 (en) | 1992-09-22 | 1992-09-22 | Compressor protecting circuit of refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR960006198Y1 (en) |
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1992
- 1992-09-22 KR KR92017968U patent/KR960006198Y1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR940008229U (en) | 1994-04-18 |
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