KR20120013831A - How to detecting refrigerant leaks - Google Patents

How to detecting refrigerant leaks Download PDF

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KR20120013831A
KR20120013831A KR1020100076091A KR20100076091A KR20120013831A KR 20120013831 A KR20120013831 A KR 20120013831A KR 1020100076091 A KR1020100076091 A KR 1020100076091A KR 20100076091 A KR20100076091 A KR 20100076091A KR 20120013831 A KR20120013831 A KR 20120013831A
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South Korea
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temperature
refrigerant leak
refrigerant
leak
evaporator
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KR1020100076091A
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Korean (ko)
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KR101303394B1 (en
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김종률
이종혁
공연준
한종호
이영근
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위니아만도 주식회사
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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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/004—Control mechanisms
    • 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
    • F25B2500/22—Preventing, detecting or repairing leaks of refrigeration fluids
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2500/00—Problems to be solved
    • F25D2500/04—Calculation of parameters
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2600/00—Control issues
    • F25D2600/02—Timing
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/02—Sensors detecting door opening
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/10—Sensors measuring the temperature of the evaporator

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Defrosting Systems (AREA)

Abstract

PURPOSE: A refrigerant leak detecting method is provided to rapidly take a follow-up action because a refrigerant leak is decided by a temperature change of an evaporator according to a flow of the refrigerant. CONSTITUTION: The refrigerant leak detecting method is as follows. The power source is turned on and defrost is completed. The refrigerant leak is sensed by a temperature change of an evaporator according to a flow of the refrigerant when a defrosting is completed after power on. The first temperature, a temperature inside an indirect cooling refrigerator, is measured after the defrosting(S2). The second temperature, a temperature inside an indirect cooling refrigerator, is measured few time later(S3). The refrigerant leak is sensed by the first temperature and second temperature(S11).

Description

냉매 리크 검지 방법 {How to detecting refrigerant leaks}How to detect refrigerant leaks

본 발명은 증발기 온도 센서에 의해 냉매 리크(leak)를 검지하는 방법에 관한 것이다.The present invention relates to a method for detecting a refrigerant leak by an evaporator temperature sensor.

종래의 냉매 리크 검지 방법은, 2개의 룸 이상의 직간냉 혼합 냉장고에서 사용되는 냉매 리크 검지 방법으로써, 직냉식 룸의 고내온도센서를 이용하여 냉매 리크(leak)를 검지한다.The conventional refrigerant leak detection method is a refrigerant leak detection method used in a direct-to-cold mixed refrigerator of two rooms or more, and detects a refrigerant leak using a high temperature sensor in the direct-cooled room.

도 1에 도시된 바와 같이, 제품 전원이 ON 시, 직냉식 룸의 고내온도인 제1온도(T1')를 측정한다.(S10)As illustrated in FIG. 1, when the product power is turned on, the first temperature T 1 ′, which is a high internal temperature of the direct cooling room, is measured.

압축기가 작동한 후 특정시간이 경과한 후의 직냉식 룸의 고내온도인 제2온도(T2')를 측정한다.(S30)After the operation of the compressor, a second temperature T 2 ′, which is the internal temperature of the direct cooling room after a specific time has elapsed, is measured.

상기 제1온도(T1')에서 상기 제2온도(T2')를 뺀 값이 일정값(A) 이하일 경우(S50), 냉매 리크(leak)로 판단한다.(S70)When the value obtained by subtracting the second temperature T 2 ′ from the first temperature T 1 ′ is less than or equal to a predetermined value A (S50), it is determined that the refrigerant leaks (S70).

디스플레이에 냉매 리크(leak) 에러 코드를 표시한다.The display shows the refrigerant leak error code.

이러한 종래의 냉매 리크 검지 방법은, 초기 1회만 검지하여 사용 중에 발생하는 리크(leak)는 음식물 손상 후에 발견하게 되어 소비자의 불편을 발생시킨다는 문제점이 발생한다.In the conventional refrigerant leak detection method, a leak occurring during use by detecting only once at an initial stage is found after food damage, causing a problem of inconvenience to consumers.

또한, 냉매 리크(leak)가 미세한 경우, 소비자가 사용한 후 며칠 또는 몇 개월이 지난 후 고내온도가 떨어지지 않게 되어 식품이 변질 된 후 발견하게 되는 문제점이 발생한다.In addition, if the refrigerant leak (leak) is fine, after a few days or months after use by the consumer does not fall in the high temperature occurs a problem that is found after the food is deteriorated.

제품 전원 ON 이후, 고내온도 보다 높은 온도의 식품을 고내에 대량 투입 시, 제품의 냉동능력에 한계가 있어 고내온도는 일정시간 경과 후에도 온도차가 일정값(A) 이하인 경우가 발생하여, 냉매 리크(leak)가 아닌 경우에도 냉매 리크(leak)로 판단할 수 있다는 문제점이 발생한다.After the product is turned on, when foods with a temperature higher than the high temperature are put into the refrigerator, there is a limit in the freezing capacity of the product. Even if it is not a leak occurs a problem that can be determined as a refrigerant leak (leak).

또한, 직냉식 룸의 고내 온도 센서는 제품동작에 따라 반응이 느리기 때문에, 냉매 리크(leak) 판단 오류를 발생시킨다는 문제점이 발생하고, 냉매 리크(leak) 판단 시 후속 조치가 늦어 사용자에게 불편을 발생시킨다는 문제점이 발생한다.In addition, since the internal temperature sensor of the direct-cooled room has a slow reaction according to the product operation, a problem arises that a refrigerant leak determination error occurs, and a follow-up action is delayed when determining the refrigerant leak, causing inconvenience to the user. A problem occurs.

본 발명은 전술한 문제를 해결하기 위하여 안출된 것으로, 냉매 리크(leak)가 미세한 경우에도 현상을 빨리 발견하고, 제품동작에 따라 빠르게 반응하여 후속 조치를 빠르게 하는 냉매 리크(leak) 검지 방법을 제공한다.SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and provides a refrigerant leak detection method for quickly detecting a phenomenon even in a case where a refrigerant leak is minute and reacting quickly according to a product operation to speed up follow-up. do.

전술한 목적을 달성하기 위한 본 발명의 냉매 리크 검지 방법은, 냉매의 흐름에 따른 증발기의 온도 변화에 의해 냉매 리크(leak)를 결정한다.In the refrigerant leak detection method of the present invention for achieving the above object, the refrigerant leak is determined by the temperature change of the evaporator according to the flow of the refrigerant.

본 발명의 냉매 리크 검지 방법은, 제상 완료 후의 증발기의 온도인 제1온도를 측정한다.The refrigerant leak detection method of the present invention measures the first temperature which is the temperature of the evaporator after the completion of defrosting.

일정 시간 경과 후 증발기의 온도인 제2온도를 측정한다.After a certain time, the second temperature, which is the temperature of the evaporator, is measured.

상기 제1온도와 상기 제2온도에 의해 리크(leak) 여부를 판단한다.It is determined whether or not the leak is based on the first temperature and the second temperature.

도어의 OPEN 또는 비정상적인 압축기 OFF 시, 현재 감지된 증발기의 제1온도를 통한 냉매 리크(leak) 검지를 종료한다.Upon opening of the door or an abnormal compressor OFF, the detection of the leak of the refrigerant through the first detected temperature of the evaporator is terminated.

일정 시간(B) 이내에 상기 제1온도에서 상기 제2온도를 뺀 값이 일정값(A) 초과인 경우 냉매 리크(leak) 검지를 종료한다.When the value obtained by subtracting the second temperature from the first temperature within a predetermined time B is greater than a predetermined value A, the refrigerant leak detection is terminated.

일정 시간(B) 경과 후, 상기 제1온도에서 상기 제2온도를 뺀 값이 일정값(A) 이하인 경우, 냉매 리크(leak) 카운트를 1회 증가시킨다.After a predetermined time (B), when the value obtained by subtracting the second temperature from the first temperature is equal to or less than the predetermined value (A), the refrigerant leak count is increased once.

상기 냉매 리크(leak) 카운트가 일정 횟수(C) 이상인 경우, 냉매 리크(leak)로 판단한다.When the coolant leak count is a predetermined number C or more, it is determined as the coolant leak.

상기 냉매 리크(leak) 카운트가 일정 횟수(C) 미만인 경우, 냉매 리크(leak) 검지를 종료한다.When the coolant leak count is less than the predetermined number C, the coolant leak detection is terminated.

이상에서 설명한 바와 같은 본 발명의 냉매 리크 검지 방법에 따르면, 다음과 같은 효과가 있다.According to the refrigerant leak detection method of the present invention as described above, there are the following effects.

냉매의 흐름에 따른 증발기의 온도 변화에 의해 냉매 리크(leak)를 판단하여, 냉매 리크(leak)를 빨리 판단하여 빠른 후속 조치를 취할 수 있다.The coolant leak may be determined by the temperature change of the evaporator according to the flow of the coolant, the coolant leak may be quickly determined, and quick follow-up may be taken.

도어의 OPEN 또는 압축기 OFF 시에는 냉매 리크(leak) 검지를 종료하여, 외부요인에 의한 순간적인 온도변화를 잘못 인식하여 냉매 리크(leak)로 검지하는 경우를 방지할 수 있다.When the door is opened or the compressor is turned off, the refrigerant leak detection is terminated, so that the instantaneous temperature change caused by an external factor is erroneously recognized, thereby preventing the refrigerant leak.

증발기의 제1온도에서 제2온도를 뺀 값이 일정값(A) 이하인 경우에 누적된 리크 카운드 횟수를 일정 횟수(C) 반복 시 냉매 리크(leak)로 판단하여, 냉매 리크(leak) 판단 오류를 줄일 수 있다.When the value obtained by subtracting the second temperature from the first temperature of the evaporator is equal to or less than the predetermined value (A), the accumulated leak count is determined as the refrigerant leak when the predetermined number (C) is repeated, and the refrigerant leak is determined. You can reduce errors.

증발기의 제1온도에서 제2온도를 뺀 값이 일정값(A) 초과인 경우에 누적된 리크(leak) 검지를 종료하여, 고내 보관 온도를 일정하게 유지하여 음식물 손상에 따른 소비자의 불편을 줄일 수 있다.When the value obtained by subtracting the second temperature from the first temperature of the evaporator exceeds a certain value (A), the accumulated leak detection is terminated, and the storage temperature in the refrigerator is kept constant to reduce consumer inconvenience caused by food damage. Can be.

도 1은 종래의 냉매 리크 검지 방법의 순서도.
도 2는 본 발명의 바람직한 실시예에 따른 냉매 리크 검지 방법의 순서도.
도 3은 본 발명의 바람직한 또 다른 실시예에 따른 냉매 리크 검지 방법의 순서도.1 is a flow chart of a conventional refrigerant leak detection method.
2 is a flow chart of a refrigerant leak detection method according to a preferred embodiment of the present invention.
3 is a flow chart of a refrigerant leak detection method according to another preferred embodiment of the present invention.

이하, 본 발명의 바람직한 일실시예를 첨부도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

참고적으로, 이하에서 설명될 본 발명의 구성들 중 종래기술과 동일한 구성에 대해서는 전술한 종래기술을 참조하기로 하고 별도의 상세한 설명은 생략한다.
For reference, among the configurations of the present invention to be described below, the same configuration as the prior art will be referred to the above-described prior art, and a detailed description thereof will be omitted.

도 2는 본 발명의 바람직한 실시예에 따른 냉매 리크 검지 방법의 순서도이고, 도 3은 본 발명의 바람직한 또 다른 실시예에 따른 냉매 리크 검지 방법의 순서도이다.
2 is a flow chart of a refrigerant leak detection method according to a preferred embodiment of the present invention, Figure 3 is a flow chart of a refrigerant leak detection method according to another preferred embodiment of the present invention.

본 발명의 냉매 리크 검지 방법은, 도 2에 도시된 바와 같이, 냉매의 흐름에 따른 증발기의 온도 변화에 의해 냉매 리크(leak)를 결정하는 것을 특징으로 하는 냉매 리크(leak)를 검지한다.The refrigerant leak detection method of the present invention, as shown in Figure 2, detects the refrigerant leak (leak) characterized in that the refrigerant leak (leak) is determined by the temperature change of the evaporator according to the flow of the refrigerant.

증발기는 직접적인 열교환에 의해 냉매의 흐름에 따라 가장 온도 변화가 큰 부분으로, 냉매 리크(leak)를 빠르게 감지하여 빠른 후속 조치를 할 수 있다는 이점이 있다.
The evaporator is a part where the temperature change is the largest according to the flow of the refrigerant by direct heat exchange, and there is an advantage in that the leak of the refrigerant is quickly detected and quick follow-up is possible.

이하 전술한 구성을 갖는 본 실시예의 작용을 설명한다.Hereinafter, the operation of the present embodiment having the above-described configuration will be described.

제상 완료(S1) 후 증발기의 온도인 제1온도(T1)를 측정한다.(S2)After completion of defrosting (S1), the first temperature (T1), which is the temperature of the evaporator, is measured. (S2)

상기 제1온도(T1)는 제상이 완료된 시점에 측정하는 것이 바람직하다.The first temperature T1 is preferably measured at the time point when the defrost is completed.

도어의 OPEN 또는 압축기의 비정상적인 OFF를 감지한다.(S3)Detect abnormal OFF of door or compressor. (S3)

도어의 OPEN 또는 압축기의 비정상적인 OFF가 감지될 시, 현재 감지된 증발기의 온도를 통한 냉매 리크(leak) 검지 단계를 종료한 후, 제상 완료 시점의 증발기의 온도를 다시 감지하여 냉매 리크(leak) 검지를 수행한다.When detecting the OPEN of the door or abnormal OFF of the compressor, after completing the refrigerant leak detection step through the current detected evaporator temperature, the temperature of the evaporator at the completion of defrost is detected again to detect the refrigerant leak. Perform

도어의 OPEN 시에는, 외부 공기가 유입되어 고내온도가 변하는 등, 외부 요인에 의해 순간적인 온도변화를 잘못 인식하여 냉매 리크(leak)로 검지하지 않도록 현재 감지된 증발기의 온도를 통한 냉매 리크(leak) 검지 단계를 종료하는 것이 바람직하다.When the door is opened, the refrigerant leaks through the temperature of the currently detected evaporator so as not to be detected as the refrigerant leak due to the mistake of the instantaneous temperature change due to external factors such as the external air is introduced and the internal temperature is changed. It is preferable to end the detection step.

압축기의 비정상적인 OFF는, 고내온도가 고내 제어 온도에 도달하여 압축기가 OFF가 되는 정상적인 경우를 제외하고, 에러가 발생하여 압축기가 OFF 되는 등의 경우를 의미한다.Abnormal OFF of the compressor means a case in which an error occurs and the compressor is turned off, except in the normal case in which the high temperature reaches the control temperature and the compressor is turned off.

상기 도어의 OPEN 또는 압축기의 비정상적인 OFF 감지 시, 현재 냉매 리크(leak) 검지 단계를 종료함으로써, 외부요인에 의한 순간적인 온도변화를 잘못 인식하여 냉매 리크(leak)로 검지하는 경우를 방지할 수 있다는 이점이 있다.When detecting the OFF of the door or abnormal OFF of the compressor, the current refrigerant leak detection step is terminated, so that the instantaneous temperature change caused by external factors may be misrecognized and the refrigerant leak may be prevented. There is an advantage.

도어의 OPEN 또는 압축기의 비정상적인 OFF가 감지되지 않을 시, 일정 시간(B) 경과 후, 증발기의 온도인 제2온도(T2)를 측정한다.(S5)When the open of the door or the abnormal OFF of the compressor is not detected, after a predetermined time (B) elapses, the second temperature T2, which is the temperature of the evaporator, is measured (S5).

상기 제1온도(T1)에서 상기 제2온도(T2)를 뺀 값이 일정값(A) 초과인지 판단한다.(S6)It is determined whether the value obtained by subtracting the second temperature T2 from the first temperature T1 is greater than a predetermined value A. (S6)

일정값(A) 초과 시, 누적된 리크 카운트를 클리어(S7)하고, 리크(leak) 검지를 종료한다.(S4)When the predetermined value (A) is exceeded, the accumulated leak count is cleared (S7), and the leak detection is finished (S4).

일정값(A) 이하인 경우, 제상 완료 시점에서 일정 시간(B)이 경과했는지 판단한다.(S8)If it is equal to or less than the predetermined value A, it is determined whether the predetermined time B has elapsed at the time of completion of defrosting (S8).

제상 완료 시점에서 일정 시간(B) 경과 후, 리크 카운트를 1회 증가시킨다.(S9)After a predetermined time (B) has elapsed from the completion of defrosting, the leak count is increased once (S9).

리크 카운트가 일정 횟수(C) 이상인지 판단한다.(S10)It is determined whether the leak count is equal to or greater than a predetermined number C. (S10)

리크 카운트가 일정 횟수(C) 미만인 경우, 리크(leak) 검지를 종료한다.(S7)If the leak count is less than the predetermined number C, the leak detection ends (S7).

리크 카운트가 일정 횟수(C) 이상인 경우, 냉매 리크(leak)로 판단한다.(S11)If the leak count is greater than or equal to the predetermined number C, it is determined that the coolant is leaked (S11).

디스플레이에 표시한다.
Display on the display.

본 발명의 또 다른 실시예는, 도 3에 도시된 바와 같이, 도어의 OPEN 또는 압축기의 비정상적인 OFF의 감지를 증발기의 온도인 제2온도(T2)를 측정한 후에 할 수도 있다.Another embodiment of the invention may, as shown in Figure 3, detect the abnormal OFF of the OPEN or compressor of the door after measuring the second temperature T2, which is the temperature of the evaporator.

이하 전술한 구성을 갖는 본 실시예의 작용을 설명한다.Hereinafter, the operation of the present embodiment having the above-described configuration will be described.

제상 완료(S1) 후 증발기의 온도인 제1온도(T1)를 측정한다.(S2)After completion of defrosting (S1), the first temperature (T1), which is the temperature of the evaporator, is measured. (S2)

일정 시간 경과 후, 증발기의 온도인 제2온도(T2)를 측정한다.(S30)After a predetermined time elapses, a second temperature T2 which is a temperature of the evaporator is measured.

도어의 OPEN 또는 압축기의 비정상적인 OFF를 감지한다.(S50)Detect abnormal OFF of door or compressor. (S50)

도어의 OPEN 또는 압축기의 비정상적인 OFF가 감지될 시, 현재의 냉매 리크(leak) 검지를 종료한다.When detecting the OPEN of the door or abnormal OFF of the compressor, the current refrigerant leak detection is terminated.

도어의 OPEN 시에는, 외부 공기가 유입되어 고내온도가 변하는 등, 외부 요인에 의해 음식물 손상 등을 방지하도록 냉매 리크(leak)를 종료하는 것이 바람직하다.At the time of opening of the door, it is preferable to terminate the refrigerant leak so as to prevent food damage or the like due to external factors such as external air is introduced and the internal temperature is changed.

압축기의 비정상적인 OFF는, 고내온도가 고내 제어 온도에 도달하여 압축기가 OFF가 되는 정상적인 경우를 제외하고, 에러가 발생하여 압축기가 OFF 되는 등의 경우를 의미한다.Abnormal OFF of the compressor means a case in which an error occurs and the compressor is turned off, except in the normal case in which the high temperature reaches the control temperature and the compressor is turned off.

도어의 OPEN 또는 압축기의 비정상적인 OFF가 감지되지 않을 시, 상기 제1온도(T1)에서 상기 제2온도(T2)를 뺀 값이 일정값(A) 초과인지 판단한다.(S6)When the OPEN of the door or the abnormal OFF of the compressor is not detected, it is determined whether the value obtained by subtracting the second temperature T2 from the first temperature T1 exceeds a predetermined value A (S6).

이후 단계는 본 발명의 실시예와 동일하다.
The subsequent steps are the same as in the embodiment of the present invention.

이러한 냉매 리크 검지 방법은, 직접적인 열교환이 일어나 냉매의 흐름에 따라 온도 변화가 가장 큰 증발기의 온도차에 의해 냉매 리크(leak)를 결정하므로, 냉매 리크(leak)를 빨리 검지하여, 신속히 후속 처리를 할 수 있다는 이점이 있다.
In this refrigerant leak detection method, since a direct heat exchange occurs and the refrigerant leak is determined by the temperature difference of the evaporator having the largest temperature change according to the flow of the refrigerant, the refrigerant leak is quickly detected and subsequent processing can be performed quickly. There is an advantage that it can.

상술한 바와 같이, 본 발명의 바람직한 실시예를 참조하여 설명하였지만, 해당기술분야의 당업자는 하기의 특허청구범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 또는 변형하여 실시할 수 있다.As described above, although described with reference to a preferred embodiment of the present invention, those skilled in the art various modifications or variations of the present invention without departing from the spirit and scope of the invention described in the claims below Can be carried out.

이상과 같이, 본 발명에 따른 냉매 리크 검지 방법은, 특히, 냉매 리크(leak)를 빨리 검지하는 냉장고 및 김치냉장고에 적합하다.As described above, the refrigerant leak detection method according to the present invention is particularly suitable for refrigerators and kimchi refrigerators that detect refrigerant leaks quickly.

Claims (7)

전원이 ON이 되고 제상 완료 시점에 냉매의 흐름에 따른 증발기의 온도 변화에 의해 냉매 리크(leak)를 결정하는 것을 특징으로 하는 냉매 리크(leak) 검지 방법.Refrigerant leak detection method characterized in that the refrigerant leak is determined by the temperature change of the evaporator according to the flow of the refrigerant when the power is turned on and the defrosting completion. 제상 완료 후 증발기의 온도인 제1온도를 측정하는 단계;
일정 시간 경과 후 증발기의 온도인 제2온도를 측정하는 단계;
상기 제1온도와 상기 제2온도에 의해 리크(leak) 여부를 판단하는 단계;를 포함하는 냉매 리크(leak) 검지 방법.Measuring a first temperature which is a temperature of an evaporator after completion of defrosting;
Measuring a second temperature which is a temperature of an evaporator after a predetermined time elapses;
And determining whether to leak based on the first temperature and the second temperature. 청구항 2에 있어서,
도어의 OPEN 또는 비정상적인 압축기 OFF 시, 현재 감지된 증발기의 제1온도를 통한 냉매 리크(leak) 검지를 종료하는 단계;를 포함하는 냉매 리크(leak) 검지 방법.The method according to claim 2,
And terminating the refrigerant leak through the first temperature of the currently detected evaporator when the door is opened or the abnormal compressor is turned off. 청구항 2에 있어서,
일정 시간(B) 이내에 상기 제1온도에서 상기 제2온도를 뺀 값이 일정값(A) 초과인 경우 냉매 리크(leak) 검지를 종료하는 단계;를 포함하는 냉매 리크(leak) 검지 방법.The method according to claim 2,
And terminating the refrigerant leak when the value obtained by subtracting the second temperature from the first temperature within a predetermined time (B) exceeds a predetermined value (A). Refrigerant leak detection method comprising a. 청구항 2에 있어서,
일정 시간(B) 경과 후, 상기 제1온도에서 상기 제2온도를 뺀 값이 일정값(A) 이하인 경우, 냉매 리크(leak) 카운트를 1회 증가시키는 단계;를 포함하는 냉매 리크(leak) 검지 방법.The method according to claim 2,
After a predetermined time (B), when the value obtained by subtracting the second temperature from the first temperature is equal to or less than the predetermined value (A), increasing the refrigerant leak count once; a refrigerant leak comprising a Detection method. 청구항 5에 있어서,
상기 냉매 리크(leak) 카운트가 일정 횟수(C) 이상인 경우, 냉매 리크(leak)로 판단하는 단계;를 포함하는 냉매 리크(leak) 검지 방법.The method according to claim 5,
And determining the refrigerant leak if the refrigerant leak count is equal to or greater than a predetermined number of times. 청구항 5에 있어서,
상기 냉매 리크(leak) 카운트가 일정 횟수(C) 미만인 경우, 냉매 리크(leak) 검지를 종료하는 단계;를 포함하는 냉매 리크(leak) 검지 방법.The method according to claim 5,
And terminating the refrigerant leak detection when the refrigerant leak count is less than a predetermined number of times (C).
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Publication number Priority date Publication date Assignee Title
EP3553417A1 (en) * 2018-04-13 2019-10-16 Carrier Corporation Refrigerant leakage detection for air cooling heat pump
CN113167520A (en) * 2018-11-29 2021-07-23 大金工业株式会社 Refrigerant leakage determination system and refrigeration cycle device

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KR100325549B1 (en) * 1999-07-28 2002-03-06 황한규 Method for detecting refrigerant leakage of a kimchi refrigerator
KR100362374B1 (en) * 1999-11-29 2002-11-23 삼성전자 주식회사 Method for indicating refrigerant leakage of refrigerating cycle
KR100758954B1 (en) 2005-01-07 2007-09-14 엘지전자 주식회사 Process for sensing leakage of refrigerant in air conditioner
JP4990702B2 (en) 2007-07-19 2012-08-01 シャープ株式会社 Refrigerant leak detection device, air conditioner, and refrigerant leak detection method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3553417A1 (en) * 2018-04-13 2019-10-16 Carrier Corporation Refrigerant leakage detection for air cooling heat pump
US11079300B2 (en) 2018-04-13 2021-08-03 Carrier Corporation Air cooling heat pump system, refrigerant leakage detection method and detection system air cooling heat pump system thereof
CN113167520A (en) * 2018-11-29 2021-07-23 大金工业株式会社 Refrigerant leakage determination system and refrigeration cycle device
CN113167520B (en) * 2018-11-29 2022-04-29 大金工业株式会社 Refrigerant leakage determination system and refrigeration cycle device

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