KR20000034277A - Lubrication mode setting method for compressor of inverter refrigerator - Google Patents

Lubrication mode setting method for compressor of inverter refrigerator Download PDF

Info

Publication number
KR20000034277A
KR20000034277A KR1019980051560A KR19980051560A KR20000034277A KR 20000034277 A KR20000034277 A KR 20000034277A KR 1019980051560 A KR1019980051560 A KR 1019980051560A KR 19980051560 A KR19980051560 A KR 19980051560A KR 20000034277 A KR20000034277 A KR 20000034277A
Authority
KR
South Korea
Prior art keywords
lubrication
band
lubrication mode
setting
determining whether
Prior art date
Application number
KR1019980051560A
Other languages
Korean (ko)
Other versions
KR100301499B1 (en
Inventor
신현재
Original Assignee
구자홍
엘지전자 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 구자홍, 엘지전자 주식회사 filed Critical 구자홍
Priority to KR1019980051560A priority Critical patent/KR100301499B1/en
Priority to JP33588199A priority patent/JP3218027B2/en
Publication of KR20000034277A publication Critical patent/KR20000034277A/en
Application granted granted Critical
Publication of KR100301499B1 publication Critical patent/KR100301499B1/en

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
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound
    • 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
    • F25B2500/16—Lubrication
    • 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
    • F25B2600/02—Compressor control
    • F25B2600/022—Compressor control for multi-stage operation
    • 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
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed
    • 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
    • F25B2600/23—Time delays
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/17—Speeds
    • F25B2700/171—Speeds of the compressor
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2104—Temperatures of an indoor room or compartment

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE: A lubrication mode setting method for a compressor of an inverter refrigerator is provided to reduce a noise while allowing the lubrication to be performed at a frequency lower than the resonance frequency band. CONSTITUTION: A method includes a first step of setting a lubrication mode start and stop frequency, lubrication time, and a resonance frequency band at an early stage of the operation and determining whether the lubrication mode start frequency is reached, a second step of starting the lubrication by varying a speed increasing rate into a predetermined angle and determining whether a predetermined lubrication time has lapsed if the lubrication mode start frequency is determined as reached in the first step, and a third step of setting a current operation frequency by sensing the interior temperature of the refrigerator and switching into a normal operation if the lubrication time is determined as lapsed in the second step.

Description

인버터 냉장고 압축기의 윤활모드 설정방법Lubrication mode setting method of inverter refrigerator compressor

본 발명은 인버터 냉장고 압축기의 윤활모드 설정방법에 관한 것으로, 특히 압축기의 실린더 마모를 억제하기 위한 윤활모드에 있어서 공진 주파수 영역보다 낮은 주파수 영역에서 윤활을 하도록 하여 기동 시의 소음을 저감시키는 인버터 냉장고 압축기의 윤활모드 설정방법에 관한 것이다.The present invention relates to a method for setting a lubrication mode of an inverter refrigerator compressor. In particular, the lubrication mode for suppressing cylinder wear of the compressor is lubricated in a frequency region lower than the resonant frequency region so as to reduce noise during startup. Lubrication mode setting method.

인버터 냉장고는 교류전원의 주파수(60㎐)를 직류로 정류화시킴과 동시에 공급되는 주파수를 변화(PWM방식)시키므로, 압축기의 모터 회전수를 다르게 조정가능하고, 이에 따라 압축하는 냉매용량을 크게 혹은 작게 제어가 가능하여 도 1에 도시된 바와 같이 냉장고 내에 저온으로 저장해야할 식품이 많은 경우 즉, 냉장고 내부 온도가 설정치보다 높게 나타난 경우에는 많은 열량을 빼앗을 수 있도록 압축기 회전속도를 빠르게(통상 회전주파수를 60㎐ 이상) 제어하고, 식품량이 적거나 없을 때 즉, 냉장고 내부의 감지된 온도가 설정온도보다 같거나, 낮은 안정된 온도인 경우는 적은 열량을 빼앗을 수 있도록 저속(통상 60㎐ 이하로 운전)으로 운전을 제어하여, 불필요한 냉매 압축에 소요되는 에너지를 줄이도록 한다.The inverter refrigerator rectifies the frequency (60 kHz) of the AC power source into DC and simultaneously changes the supplied frequency (PWM method), so that the motor rotation speed of the compressor can be adjusted differently. As shown in FIG. 1, when there are many foods to be stored at a low temperature in the refrigerator, that is, when the internal temperature of the refrigerator is higher than the set value, the compressor rotation speed is increased (normally, the rotation frequency is increased). 60㎐ or more), and when the food temperature is low or no, that is, when the sensed temperature inside the refrigerator is at or below the set temperature, or at a stable temperature, it can be operated at low speed (usually below 60㎐) to take away less heat. Operation is controlled to reduce the energy required for unnecessary refrigerant compression.

상기에서 설명한 동작을 하기 위한 인버터 냉장고의 압축기모터 운전제어는 크게 3구간으로 나눌 수 있는데, 첫 번째 구간은 기동시작 전에 전류를 통전시켜 회전자를 항상 일정한 위상으로 세팅(setting) 시키는 초기위치설정모드와, 두 번째 구간은 초기에 모터의 회전수가 낮아 유도기전력을 감지할 수 없으므로 적절히 설정된 토크로 회전수를 증가시켜 기동시키는 동기운전모드와, 세 번째 구간은 모터의 회전수가 증가하여 유도기전력을 충분히 검출할 수 있게 되어 유도기전력에 의한 위치정보에 따라 고정자의 각상에 적절한 전류를 분배하여 제어하는 회전자 검출운전모드로 나눌 수 있다.Compressor motor operation control of the inverter refrigerator for the operation described above can be divided into three sections, the first section is the initial position setting mode to always set the rotor to a constant phase by energizing the current before starting In the second section, the induction electromotive force cannot be detected because of the low initial rotation speed of the motor, and the synchronous operation mode in which the rotation speed is increased by the appropriately set torque is started. In the third section, the induction electromotive force is sufficiently increased due to the increase in the rotation speed of the motor. It can be detected and can be divided into the rotor detection operation mode in which an appropriate current is distributed and controlled according to the positional information by the induced electromotive force.

상기 회전자 검출운전 중에 추가로 설정된 모드인 윤활모드는 회전수를 증가 혹은 감소시켜 곧바로 목표회전수로 전환될 때 압축기의 실린더 부위에 충분한 윤활이 안된 상태이므로, 윤활이 가장 잘되는 특정주파수에 일정시간 유지시켜 충분한 윤활이 진행된 후, 회전수를 높이거나 낮추어 실린더의 마모를 억제하도록 한다.The lubrication mode, which is a mode additionally set during the rotor detection operation, is a state in which the lubrication is not sufficiently lubricated to the cylinder part of the compressor when the rotational speed is increased or decreased immediately to the target rotational speed. After sufficient lubrication is carried out, the rotation speed is increased or decreased to prevent wear of the cylinder.

이러한 윤활은 인버터 모터가 아닌 유도모터에도 적용되는 것으로, 압축기의 축에 연결된 윤활펌프의 원심력에 의한 펌핑작용에 의해 이루어지므로, 윤활펌프는 유도모터의 회전주파수인 60㎐에서 가장 효과가 좋도록 설계되어 있어 일반적으로 윤활모드에서의 회전수는 인버터를 채택하기 이전에 개발되어 있는 윤활유 펌핑주파수인 60㎐로 한다(추가의 개발비를 최소로 하기 위해 채택).This lubrication is applied to the induction motor, not the inverter motor. Since the lubrication pump is performed by the centrifugal force of the lubrication pump connected to the shaft of the compressor, the lubrication pump is designed to have the best effect at the rotational frequency of 60 Hz. In general, the number of revolutions in the lubrication mode is 60 kW, the lubricating oil pumping frequency developed before the inverter is adopted (adopted to minimize additional development costs).

상기에서와 같이 종래의 기술에 있어서는 회전수를 증가 혹은 감소시켜 곧바로 목표회전수로 전환될 때 압축기의 실린더 부위에 충분한 윤활을 위해 일정시간 60㎐로 고정하여 운전하는 윤활모드를 수행함에 있어 공진 주파수 대역(예를 들어 48㎐∼52㎐)을 급가속으로 통과하여야 하기 때문에 소음이 발생하는 문제점이 있었다.As described above, in the related art, the resonant frequency in performing a lubrication mode which is fixed at 60 Hz for a predetermined time for sufficient lubrication of the cylinder portion of the compressor when the rotational speed is increased or decreased immediately is converted to the target rotational speed. There was a problem that noise occurs because the band (for example, 48 kHz to 52 kHz) must pass at a rapid acceleration.

따라서, 본 발명은 상기와 같은 종래의 문제점을 해결하기 위하여 창안한 것으로, 기동 후 공진 주파수 대역보다 낮은 일정의 주파수에 도달하면 속도 증가율을 가변하여 소정의 주파수에 천천히 도달하면서 윤활모드를 수행하도록 제어하는 방법을 제공함에 그 목적이 있다.Therefore, the present invention was devised to solve the above-mentioned conventional problems. When the motor reaches a predetermined frequency lower than the resonance frequency band after starting, the speed increase rate is varied to control the lubrication mode while slowly reaching a predetermined frequency. The purpose is to provide a way to.

도 1은 종래 투입된 식품부하에 따른 압축기의 회전주파수를 보인 예시도.1 is an exemplary view showing a rotational frequency of a compressor according to a conventionally loaded food load.

도 2는 종래 인버터 냉장고의 압축기 운전제어 모드를 보인 주파수 특성 그래프.2 is a frequency characteristic graph showing a compressor operation control mode of a conventional inverter refrigerator.

도 3은 본 발명의 동작을 보인 흐름도.3 is a flow chart showing the operation of the present invention.

도 4는 본 발명의 또 다른 동작을 보인 흐름도.4 is a flow chart showing another operation of the present invention.

도 5는 본 발명을 적용한 인버터 냉장고의 압축기 운전제어 모드를 보인 주파수 특성 그래프.5 is a frequency characteristic graph showing a compressor operation control mode of the inverter refrigerator to which the present invention is applied.

도 6은 본 발명을 적용한 또 다른 인버터 냉장고의 압축기 운전제어 모드를 보인 주파수 특성 그래프.6 is a frequency characteristic graph showing a compressor operation control mode of another inverter refrigerator to which the present invention is applied.

이와 같은 목적을 달성하기 위한 본 발명 인버터 냉장고 압축기의 윤활모드 설정방법에 있어서는 초기 기동 시에 윤활모드 시작 및 정지주파수와 윤활시간 및 공진 주파수 대역을 설정한 후, 윤활모드 시작주파수에 도달하였는가를 판단하는 제1 단계와; 상기 제1 단계의 판단결과 도달하였으면 속도 증가율을 소정의 각으로 가변하여 윤활을 시작한 후, 소정의 윤활시간이 경과하였는가를 판단하는 제2 단계와; 상기 제2 단계의 판단결과 경과하였으면 냉장고의 고내 온도를 감지하여 그에 따른 현재 운전주파수를 설정하여 정상운전으로 전환하는 제3 단계로 이루어진 것을 특징으로 한다.In the lubrication mode setting method of the inverter refrigerator compressor of the present invention for achieving the above object, it is determined whether the lubrication mode start frequency has been reached after setting the lubrication mode start and stop frequency, the lubrication time and the resonance frequency band at the initial start-up. A first step of doing; A second step of determining whether a predetermined lubrication time has elapsed after the lubrication starts by varying the speed increase rate to a predetermined angle when the determination result of the first step is reached; When the determination result of the second step has elapsed, a third step of detecting the temperature in the refrigerator and setting the current operating frequency accordingly to the normal operation is performed.

또 다른 방법에 있어서는 초기 기동 시에 윤활모드 대역 및 이 대역의 상한치와 하한치를 설정하고, 윤활시간 및 공진 주파수 대역을 설정한 후, 최저 윤활모드 대역에 도달하였는가를 판단하는 제1 단계와; 상기 제1 단계의 판단결과 도달하였으면 윤활동작을 시작하고, 윤활동작 중 윤활모드 대역의 하한치를 벗어났는가를 판단하는 제2 단계와; 상기 제2 단계의 판단결과에 벗어나지 않았으면 윤활모드 대역의 상한치를 벗어났는가를 판단하고, 상기 제2 단계의 판단결과 벗어났으면 전압을 증가시킨 후 윤활모드 대역의 상한치를 벗어났는가를 판단하는 제3 단계와; 상기 제3 단계의 판단결과 벗어나지 않았으면 소정의 윤활시간이 경과하였는지를 판단하고, 벗어났으면 전압을 감소시킨 후에, 소정의 윤활시간이 경과하였는지를 판단하는 제4 단계와; 상기 제4 단계의 판단결과 경과하지 않았으면 상기 제2 단계로 되돌아가고, 경과하였으면 냉장고의 고내 온도를 감지하여 그에 따른 현재 운전주파수를 설정하여 정상운전으로 전환하는 제5 단계로 이루어진 것을 특징으로 한다.Another method includes: a first step of setting a lubrication mode band, an upper limit and a lower limit of the band at initial startup, setting a lubrication time and a resonant frequency band, and then determining whether the lowest lubrication mode band has been reached; A second step of starting a lubrication operation when the determination result of the first step is reached and determining whether the lower limit value of the lubrication mode band is out of the lubrication operation; Determining whether the upper limit of the lubrication mode band is outside the determination result of the second step, and determining whether the upper limit of the lubrication mode band is outside the upper limit value of the lubrication mode band if it is out of the determination result of the second step. With three steps; A fourth step of determining whether or not a predetermined lubrication time has elapsed if the determination result of the third step has not elapsed; If the result of the determination of the fourth step has not elapsed, the method returns to the second step, and if it has elapsed, the fifth step of detecting the internal temperature of the refrigerator and setting the current operating frequency accordingly to the normal operation is performed. .

또 다른 방법에 있어서는 초기 기동 시에 윤활모드 대역 및 이 대역의 상한치와 하한치를 설정하고, 윤활시간 및 공진 주파수 대역을 설정한 후, 최고 윤활모드 대역에 도달하였는가를 판단하는 제1 단계와; 상기 제1 단계의 판단결과 도달하였으면 윤활동작을 시작하고, 윤활동작 중 윤활모드 대역의 상한치를 벗어났는가를 판단하는 제2 단계와; 상기 제2 단계의 판단결과에 벗어나지 않았으면 윤활모드 대역의 하한치를 벗어났는가를 판단하고, 상기 제2 단계의 판단결과 벗어났으면 전압을 감소시킨 후, 윤활모드 대역의 하한치를 벗어났는가를 판단하는 제3 단계와; 상기 제3 단계의 판단결과 벗어나지 않았으면 소정의 윤활시간이 경과하였는지를 판단하고, 벗어났으면 전압을 증가시킨 후에, 소정의 윤활시간이 경과하였는지를 판단하는 제4 단계와; 상기 제4 단계의 판단결과 경과하지 않았으면 상기 제2 단계로 되돌아가고, 경과하였으면 냉장고의 고내 온도를 감지하여 그에 따른 현재 운전주파수를 설정하여 정상운전으로 전환하는 제5 단계로 이루어진 것을 특징으로 한다.Another method includes: a first step of setting a lubrication mode band, an upper limit value and a lower limit value of the lubrication mode band at the initial startup, setting a lubrication time and a resonant frequency band, and then determining whether the highest lubrication mode band has been reached; A second step of starting a lubrication operation when the determination result of the first step is reached and determining whether the upper limit of the lubrication mode band is out of the lubrication operation; If the determination result of the second step does not deviate, it is determined whether the lower limit value of the lubrication mode band is out. If the deviation is out of the determination result of the second step, the voltage is reduced, and then it is determined whether the lower limit value of the lubrication mode band is out. A third step; A fourth step of determining whether or not a predetermined lubrication time has elapsed if not inconsistent with the determination result of the third step; If the result of the determination of the fourth step has not elapsed, the method returns to the second step, and if it has elapsed, the fifth step of detecting the internal temperature of the refrigerator and setting the current operating frequency accordingly to the normal operation is performed. .

이하, 본 발명에 따른 일실시예를 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명의 동작을 보인 흐름도이고, 도 5는 본 발명을 적용한 인버터 냉장고의 압축기 운전제어 모드를 보인 주파수 특성 그래프로서, 이에 도시한 바와 같이 초기 기동 시에 윤활모드 시작 및 정지주파수와 윤활시간 및 공진 주파수 대역을 설정한 후(step 1), 윤활모드 시작주파수에 도달하였는가를 판단하고(step 2), 이 판단결과 도달하였으면 속도 증가율을 소정의 각으로 가변하여 윤활을 시작한 후(step 3), 소정의 윤활시간이 경과하였는가를 판단하며(step 4), 상기 판단결과 경과하였으면 냉장고의 고내 온도를 감지하여 그에 따른 현재 운전주파수를 설정하여 정상운전으로 전환한다(step5∼step7).Figure 3 is a flow chart showing the operation of the present invention, Figure 5 is a frequency characteristic graph showing the compressor operation control mode of the inverter refrigerator according to the present invention, as shown in the lubrication mode start and stop frequency and lubrication at the initial start as shown After setting the time and the resonant frequency band (step 1), it is determined whether the lubrication mode start frequency has been reached (step 2). If the determination result is reached, the speed increase rate is changed to a predetermined angle to start lubrication (step 3). In step 4), it is determined whether a predetermined lubrication time has elapsed, and if the determination result has elapsed, the internal temperature of the refrigerator is sensed, and the current operation frequency is set accordingly to switch to normal operation (steps 5 to 7).

상기에서 윤활모드 시작주파수(f1)는 공진 주파수 대역(예를 들어 48㎐∼52㎐)보다 낮은 주파수(예를 들어 39㎐)로 설정하며, 상기 윤활시간(t1: 20초)은 윤활모드 시작주파수(f1)에서 소정의 각(예를 들어 5。)으로 등가속도로 윤활모드 정지주파수(f2: 45㎐)에 도달하는 시간으로 설정한다.The lubrication mode start frequency f 1 is set to a frequency lower than the resonant frequency band (for example, 48 Hz to 52 Hz) (for example, 39 Hz), and the lubrication time (t 1 : 20 seconds) is lubricated. It is set to the time to reach the lubrication mode stop frequency (f 2 : 45 Hz) at a constant angle at a predetermined angle (for example, 5 °) from the mode start frequency f 1 .

도 4는 본 발명의 또 다른 동작을 보인 흐름도로서, 이에 도시한 바와 같이 초기 기동 시에 윤활모드 대역(f1∼f2: 39㎐∼45㎐)과 윤활시간(t1) 및 공진 주파수 대역(예를 들어 48㎐∼52㎐)을 설정한 후(step 10), 최저 윤활모드 대역(39㎐)도달하였는가를 판단하여 판단결과 도달하였으면 윤활동작을 시작하고(step 11∼step 12), 윤활동작 중 전압의 리플에 의해 주파수(f0)가 윤활모드 대역의 하한치(예를 들어 40㎐)를 벗어났는가(40㎐〉f0)를 판단하며(step 13), 이 판단결과에 벗어나지 않았으면 윤활모드 대역의 상한치(예를 들어 44㎐)를 벗어났는가(f0〉40㎐)를 판단하고(step 15), 상기 단계(step 13)의 판단결과 벗어났으면 전압을 증가시킨 후(step 14), 최고 윤활모드 대역을 벗어났는가(f0〉40㎐)를 판단하며(step 15), 이 판단결과 벗어나지 않았으면 소정의 윤활시간(예를 들어 20초)이 경과하였는지를 판단하고(step 17), 상기 단계(step 15)의 판단결과 벗어났으면 전압을 감소시킨 후에(step 16), 소정의 윤활시간(20초)이 경과하였는지를 판단하며(step 17), 이 판단결과 경과하지 않았으면 상기 단계(step 11)로 되돌아가고, 경과하였으면 냉장고의 고내 온도를 감지하여 그에 따른 현재 운전주파수를 설정하여 정상운전으로 전환한다(step18∼step20).4 is a flowchart showing still another operation of the present invention. As shown in FIG. 4, the lubrication mode band (f 1 to f 2 : 39 Hz to 45 Hz), the lubrication time t 1 , and the resonant frequency band at the initial startup are shown. After setting (for example, 48㎐ ~ 52㎐) (step 10), it is judged whether the minimum lubrication mode band (39㎐) has been reached, and when the determination result is reached, lubrication operation is started (step 11 ~ step 12). It is determined whether the frequency f 0 is out of the lower limit of the lubrication mode band (for example, 40 Hz) by the ripple of the voltage during operation (40 Hz> f 0 ) (step 13). Determine whether the lubrication mode band is out of the upper limit (for example, 44 kPa) (f 0 > 40 kPa) (step 15), and if it is out of the determination of step (step 13), increase the voltage (step 14). ), determines a maximum off did lubricating mode band (f 0> 40㎐) and (step 15), if the determination result was predetermined at the time of departing lubrication (E.g., 20 seconds) has elapsed (step 17), and if it is out of the determination result of the step (step 15), after reducing the voltage (step 16), whether a predetermined lubrication time (20 seconds) has elapsed If the result of the determination does not pass (step 17), the process returns to step 11, and if so, detects the internal temperature of the refrigerator and sets the current operating frequency accordingly to switch to normal operation (step 18 to step 20). ).

또한, 상기에서 설명한 방법과는 다르게 도 6에 도시한 바와 같이 상기에서 설명한 단계(step 2∼step 16)의 동작을 최고 윤활모드 대역에 도달하였는지를 판단하여 윤활모드를 시작하고, 윤활동작 중 설정한 상한치와 하한치를 벗어났는가를 판단하여 전압을 증감시키는 동작으로 바꾸고, 그 이후의 동작은 상기에서 설명한 단계(step 17∼step 20)를 동일하게 수행하도록 할 수 있다.In addition, unlike the method described above, as shown in FIG. 6, whether the operation of the above-described steps (steps 2 to 16) reaches the maximum lubrication mode band is started, the lubrication mode is started, and It is determined whether the upper limit value and the lower limit value deviate, and the operation is changed to an operation of increasing or decreasing the voltage, and the subsequent operation may be performed in the same manner as described above (steps 17 to 20).

이상에서 설명한 바와 같이 본 발명 인버터 냉장고 압축기의 윤활모드 설정방법은 급가속으로 공진 주파수 대역을 통과하여 60㎐에서 수행하던 윤활동작을 공진 주파수 대역보다 낮은 주파수에서 서서히 하도록 함으로써, 기동 소음을 저감시키는 효과가 있다.As described above, the method for setting the lubrication mode of the inverter refrigerator compressor of the present invention has the effect of reducing the lubrication noise by gradually lubricating operation performed at 60 Hz at a frequency lower than the resonant frequency band through the resonant frequency band at rapid acceleration. There is.

Claims (6)

초기 기동 시에 윤활모드 시작 및 정지주파수와 윤활시간 및 공진 주파수 대역을 설정한 후, 윤활모드 시작주파수에 도달하였는가를 판단하는 제1 단계와; 상기 제1 단계의 판단결과 도달하였으면 속도 증가율을 소정의 각으로 가변하여 윤활을 시작한 후, 소정의 윤활시간이 경과하였는가를 판단하는 제2 단계와; 상기 제2 단계의 판단결과 경과하였으면 냉장고의 고내 온도를 감지하여 그에 따른 현재 운전주파수를 설정하여 정상운전으로 전환하는 제3 단계로 이루어진 것을 특징으로 하는 인버터 냉장고 압축기의 윤활모드 설정방법.A first step of determining whether the lubrication mode start frequency has been reached after setting the lubrication mode start and stop frequencies, the lubrication time and the resonance frequency band at the initial start-up; A second step of determining whether a predetermined lubrication time has elapsed after the lubrication starts by varying the speed increase rate to a predetermined angle when the determination result of the first step is reached; And a third step of detecting the internal temperature of the refrigerator, setting the current operating frequency according to the determination result of the second step, and switching to normal operation. 제1항에 있어서, 상기 윤활모드 시작주파수는 공진 주파수 대역보다 낮은 주파수로 설정하는 것을 특징으로 하는 인버터 냉장고 압축기의 윤활모드 설정방법.The method of claim 1, wherein the lubrication mode start frequency is set to a frequency lower than a resonance frequency band. 제1항에 있어서, 상기 윤활시간은 윤활모드 시작주파수에서 소정의 각으로 등가속도로 윤활모드 정지주파수에 도달하는 시간으로 설정하는 것을 특징으로 하는 인버터 냉장고 압축기의 윤활모드 설정방법.The lubrication mode setting method of claim 1, wherein the lubrication time is set to a time at which the lubrication mode stop frequency is reached at a constant angle at a predetermined angle from the lubrication mode start frequency. 초기 기동 시에 윤활모드 대역 및 이 대역의 상한치와 하한치를 설정하고, 윤활시간 및 공진 주파수 대역을 설정한 후, 최저 윤활모드 대역에 도달하였는가를 판단하는 제1 단계와; 상기 제1 단계의 판단결과 도달하였으면 윤활동작을 시작하고, 윤활동작 중 윤활모드 대역의 하한치를 벗어났는가를 판단하는 제2 단계와; 상기 제2 단계의 판단결과에 벗어나지 않았으면 윤활모드 대역의 상한치를 벗어났는가를 판단하고, 상기 제2 단계의 판단결과 벗어났으면 전압을 증가시킨 후 윤활모드 대역의 상한치를 벗어났는가를 판단하는 제3 단계와; 상기 제3 단계의 판단결과 벗어나지 않았으면 소정의 윤활시간이 경과하였는지를 판단하고, 벗어났으면 전압을 감소시킨 후에, 소정의 윤활시간이 경과하였는지를 판단하는 제4 단계와; 상기 제4 단계의 판단결과 경과하지 않았으면 상기 제2 단계로 되돌아가고, 경과하였으면 냉장고의 고내 온도를 감지하여 그에 따른 현재 운전주파수를 설정하여 정상운전으로 전환하는 제5 단계로 이루어진 것을 특징으로 하는 인버터 냉장고 압축기의 윤활모드 설정방법.A first step of setting a lubrication mode band, an upper limit and a lower limit of the band at initial startup, setting a lubrication time and a resonant frequency band, and then determining whether the lowest lubrication mode band has been reached; A second step of starting a lubrication operation when the determination result of the first step is reached and determining whether the lower limit value of the lubrication mode band is out of the lubrication operation; Determining whether the upper limit of the lubrication mode band is outside the determination result of the second step, and determining whether the upper limit of the lubrication mode band is outside the upper limit value of the lubrication mode band if it is out of the determination result of the second step. With three steps; A fourth step of determining whether or not a predetermined lubrication time has elapsed if the determination result of the third step has not elapsed; If the result of the determination of the fourth step has not elapsed, the process returns to the second step, and if it has elapsed, the fifth step of detecting the internal temperature of the refrigerator and setting the current operating frequency accordingly to the normal operation is performed. How to set lubrication mode of inverter refrigerator compressor. 제3항에 있어서, 상기 윤활모드 대역은 공진 주파수 대역보다 낮은 소정의 대역폭으로 하는 것을 특징으로 하는 인버터 냉장고 압축기의 윤활모드 설정방법.4. The method of claim 3, wherein the lubrication mode band has a predetermined bandwidth lower than a resonance frequency band. 초기 기동 시에 윤활모드 대역 및 이 대역의 상한치와 하한치를 설정하고, 윤활시간 및 공진 주파수 대역을 설정한 후, 최고 윤활모드 대역에 도달하였는가를 판단하는 제1 단계와; 상기 제1 단계의 판단결과 도달하였으면 윤활동작을 시작하고, 윤활동작 중 윤활모드 대역의 상한치를 벗어났는가를 판단하는 제2 단계와; 상기 제2 단계의 판단결과에 벗어나지 않았으면 윤활모드 대역의 하한치를 벗어났는가를 판단하고, 상기 제2 단계의 판단결과 벗어났으면 전압을 감소시킨 후, 윤활모드 대역의 하한치를 벗어났는가를 판단하는 제3 단계와; 상기 제3 단계의 판단결과 벗어나지 않았으면 소정의 윤활시간이 경과하였는지를 판단하고, 벗어났으면 전압을 증가시킨 후에, 소정의 윤활시간이 경과하였는지를 판단하는 제4 단계와; 상기 제4 단계의 판단결과 경과하지 않았으면 상기 제2 단계로 되돌아가고, 경과하였으면 냉장고의 고내 온도를 감지하여 그에 따른 현재 운전주파수를 설정하여 정상운전으로 전환하는 제5 단계로 이루어진 것을 특징으로 하는 인버터 냉장고 압축기의 윤활모드 설정방법.A first step of setting a lubrication mode band, an upper limit and a lower limit of the band at initial startup, setting a lubrication time and a resonant frequency band, and then determining whether the highest lubrication mode band has been reached; A second step of starting a lubrication operation when the determination result of the first step is reached and determining whether the upper limit of the lubrication mode band is out of the lubrication operation; If the determination result of the second step does not deviate, it is determined whether the lower limit value of the lubrication mode band is exceeded. A third step; A fourth step of determining whether or not a predetermined lubrication time has elapsed if not inconsistent with the determination result of the third step; If the result of the determination of the fourth step has not elapsed, the process returns to the second step, and if it has elapsed, the fifth step of detecting the internal temperature of the refrigerator and setting the current operating frequency accordingly to the normal operation is performed. How to set lubrication mode of inverter refrigerator compressor.
KR1019980051560A 1998-11-28 1998-11-28 Lubricant mode setup method for compressor of inverter refrigerator KR100301499B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019980051560A KR100301499B1 (en) 1998-11-28 1998-11-28 Lubricant mode setup method for compressor of inverter refrigerator
JP33588199A JP3218027B2 (en) 1998-11-28 1999-11-26 Operation control method for compressor of inverter refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980051560A KR100301499B1 (en) 1998-11-28 1998-11-28 Lubricant mode setup method for compressor of inverter refrigerator

Publications (2)

Publication Number Publication Date
KR20000034277A true KR20000034277A (en) 2000-06-15
KR100301499B1 KR100301499B1 (en) 2001-09-22

Family

ID=19560231

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980051560A KR100301499B1 (en) 1998-11-28 1998-11-28 Lubricant mode setup method for compressor of inverter refrigerator

Country Status (2)

Country Link
JP (1) JP3218027B2 (en)
KR (1) KR100301499B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100804958B1 (en) * 2007-04-19 2008-02-20 주식회사 대우일렉트로닉스 Method for controlling motor of compressor for a refrigerator
KR20150094288A (en) * 2014-02-11 2015-08-19 엘지전자 주식회사 Inverter Compressor for a refrigerator and Controlling Method for an Inverter Compressor for a refrigerator
CN110398078A (en) * 2019-07-18 2019-11-01 珠海格力电器股份有限公司 A kind of multi-connected machine method for controlling oil return and the multi-gang air-conditioner with it
CN115325767A (en) * 2021-05-10 2022-11-11 安徽美芝制冷设备有限公司 Refrigerator and starting method and device of constant-frequency compressor of refrigerator

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105588384B (en) * 2014-12-10 2018-03-16 海信（山东）空调有限公司 The method for controlling oil return and device of a kind of frequency converting air-conditioner compressor
CN106545966B (en) * 2016-10-28 2019-07-23 青岛海尔空调器有限总公司 Air conditioner and its control method for frequency and control device
CN110986430B (en) * 2019-12-31 2020-11-10 珠海格力电器股份有限公司 Effective oil return control method and device and air conditioning unit
KR102461225B1 (en) * 2020-09-24 2022-11-01 엘지전자 주식회사 Refrigerator and control method thereof
CN113915830A (en) * 2021-06-07 2022-01-11 海信（山东）冰箱有限公司 Refrigerator and compressor starting method
DE102021210048A1 (en) * 2021-09-10 2023-03-16 BSH Hausgeräte GmbH Operating a speed-controlled compressor of a household refrigeration appliance

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100804958B1 (en) * 2007-04-19 2008-02-20 주식회사 대우일렉트로닉스 Method for controlling motor of compressor for a refrigerator
KR20150094288A (en) * 2014-02-11 2015-08-19 엘지전자 주식회사 Inverter Compressor for a refrigerator and Controlling Method for an Inverter Compressor for a refrigerator
CN110398078A (en) * 2019-07-18 2019-11-01 珠海格力电器股份有限公司 A kind of multi-connected machine method for controlling oil return and the multi-gang air-conditioner with it
CN115325767A (en) * 2021-05-10 2022-11-11 安徽美芝制冷设备有限公司 Refrigerator and starting method and device of constant-frequency compressor of refrigerator
CN115325767B (en) * 2021-05-10 2023-11-21 安徽美芝制冷设备有限公司 Refrigerator and starting method and device of constant-frequency compressor of refrigerator

Also Published As

Publication number Publication date
KR100301499B1 (en) 2001-09-22
JP3218027B2 (en) 2001-10-15
JP2000213848A (en) 2000-08-02

Similar Documents

Publication Publication Date Title
KR100254932B1 (en) Refrigerating apparatus, and refrigerator control and brushless motor starter used in same
US6220045B1 (en) Apparatus and method for controlling resonance frequency of inverter refrigerator
JP2755469B2 (en) Air conditioner
KR950009396B1 (en) Heat exchanger control system in refrgerator cycle
KR100301499B1 (en) Lubricant mode setup method for compressor of inverter refrigerator
US6121746A (en) Speed reduction switch
US6206643B1 (en) Method for controlling reciprocating compressor having variable capacity
JP3672637B2 (en) Compressor motor control device
KR100719241B1 (en) Method for Controlling Operation of Inverter Refrigerator
JP2001119981A (en) Compressor drive-control device and air conditioner
JP2003111488A (en) Method and apparatus of controlling switched reluctance motor and compressor
JP2004104997A (en) Brushless electric motor control equipment
JP2009228955A (en) Refrigerator
KR20070014323A (en) Method for controlling inverter compressor of air conditioner
US11955915B2 (en) Variable-frequency compressor with adaptive heating power control and method for operating the same
JPH08214578A (en) Controller of air conditioner compressor
JPS60228782A (en) Controller of air conditioner
JP2003050072A (en) Controller of refrigerator
JPH10210784A (en) Compressor motor controller
KR101201512B1 (en) Method for controlling inverter compressor
JP6704372B2 (en) Compressors and equipment equipped with compressors
JPH07167480A (en) Air conditioner
KR100308280B1 (en) A method for controlling operation in applicaton of initial power source
KR100207088B1 (en) Refrigerator starting circuit
KR100473321B1 (en) Method for detecting electromotive force of sensorless BLDC motor

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee