KR0147098B1 - Stable presser method of multi-airconditioner - Google Patents

Stable presser method of multi-airconditioner

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Publication number
KR0147098B1
KR0147098B1 KR1019950034576A KR19950034576A KR0147098B1 KR 0147098 B1 KR0147098 B1 KR 0147098B1 KR 1019950034576 A KR1019950034576 A KR 1019950034576A KR 19950034576 A KR19950034576 A KR 19950034576A KR 0147098 B1 KR0147098 B1 KR 0147098B1
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KR
South Korea
Prior art keywords
pressure
compressor
unit
high pressure
gas
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KR1019950034576A
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Korean (ko)
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KR970022002A (en
Inventor
김경식
유승광
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구자홍
엘지전자주식회사
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Priority to KR1019950034576A priority Critical patent/KR0147098B1/en
Publication of KR970022002A publication Critical patent/KR970022002A/en
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Publication of KR0147098B1 publication Critical patent/KR0147098B1/en

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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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/37—Capillary tubes
    • 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
    • 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
    • F25B2600/2519—On-off valves

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

본발명은 다실 공기조화기의 압평형방법에 관한 것으로서, 압축기 정지후 가스의 압력 평형을 유지하여 압축기의 재기동이 원활하게 이루이지도록 한 것이다.The present invention relates to a pressure balancing method of a multi-room air conditioner, and to maintain a pressure balance of gas after the compressor is stopped so that the restart of the compressor is smoothly achieved.

이와같은 본발명의 목적은 고압의 과냉액 가스가 유니트로 유입되는 것을 조절하는 솔레노이드 밸브를 압축기 정지후에도 일정시간동안 전부 열어서 고압과 저압의 압력차를 줄여 압력평형이 유지됨으로서 상기의 목적을 이룰 수 있도록 하였다.The purpose of the present invention is to achieve the above object by maintaining the pressure balance by reducing the pressure difference between high pressure and low pressure by fully opening the solenoid valve for regulating the inflow of high pressure subcooled gas into the unit for a certain time even after the compressor is stopped. It was made.

Description

다실 공기조화기의 압평형방법Pressure equalization method of tea room air conditioner

제1도는 일반적인 다실 공기조화기의 시스템도.1 is a system diagram of a general tea room air conditioner.

제2도는 종래의 다실 공기조화기의 시스템 부품의 제어로직도.2 is a control logic diagram of system components of a conventional multi-chamber air conditioner.

제3도는 본발명의 다실 공기조화기의 시스템 부품의 제어로직도.3 is a control logic diagram of the system components of the multi-room air conditioner of the present invention.

*도면의 주요 부분에 대한 부호의 설명* Explanation of symbols for the main parts of the drawings

1 : 압축기 2 : 실외열교환기1: compressor 2: outdoor heat exchanger

3,4,5 : 모세관 6,7,8 : 솔레노이드 밸브3,4,5 capillary 6,7,8 solenoid valve

9 : 제 1 유니트 10 : 제 2 유니트9: first unit 10: second unit

11 : 제 3 유니트11: third unit

본발명은 다실 공기조화기에 관한 것으로서, 특히 압축기 정지후 가스의 압력평형을 유지하여 압축기의 재기동이 원활하게 이루어지도록 하는 다실 공기조화기의 압평형방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-room air conditioner, and more particularly, to a pressure balancing method of a multi-room air conditioner which maintains a pressure balance of a gas after the compressor stops to smoothly restart the compressor.

종래의 다실 공기조화기와 그 주변부의 구성은 제1도와 제2도에서와 같이 고온고압의 가스를 흡입 및 토출하는 압축기(1)와, 상기 압축기(1)에서 토출된 고온고압의 가스가 외부로 열을 발산하여 응축되도록 형성된 시외열교환기(2)와, 상기 실외 열교환기(2)에서 열을 발산하여 고압의 과냉액이 된 가스를 감압시키는 모세관(3)(4)(5)과, 상기 모세관(3)에서 감압된 고압의 과냉액 가스가 솔레노이드 밸브(6)를 통과하여 유입되는 제1유니트(9)와, 상기 모세관(4)에서 감압된 고압의 과냉액 가스가 솔레노이드 밸브(7)를 통과하여 유입되는 제2유니트(!0)와, 상기 모세관(5)에서 감압된 고압의 과냉액 가스가 솔레노이드 밸브(8)를 통과하여 유입되는 제3유니트(11)로 구성되어있다.The conventional multi-room air conditioner and its peripheral portion include a compressor (1) for sucking and discharging high-temperature and high-pressure gas as shown in FIGS. 1 and 2, and the high-temperature, high-pressure gas discharged from the compressor (1) to the outside. An intercity heat exchanger (2) configured to dissipate heat to condense, and capillary tubes (3) (4) (5) for decompressing a gas which is dissipated from the outdoor heat exchanger (2) to become a high-pressure supercooling liquid, and The first unit 9 into which the high pressure subcooled liquid gas decompressed in the capillary tube 3 flows through the solenoid valve 6 and the high pressure subcooled gas decompressed in the capillary tube 4 are the solenoid valve 7. The second unit (! 0) flowing through the passage and the high-pressure subcooled liquid gas reduced in the capillary tube (5) is composed of a third unit (11) flowing through the solenoid valve (8).

이와같이 구성된 다실 공기조화기 시스템과 관련된 제어방법을 설명한다.The control method associated with the multi-room air conditioner system configured as described above will be described.

압축기(1)에서 토출되는 고온고압의 가스는 실외열교환기(2)를 통과하면서 외부로 열을 발산하여 고압의 과냉액 가스로 응축되어진다.The high temperature and high pressure gas discharged from the compressor 1 dissipates heat to the outside while passing through the outdoor heat exchanger 2 and condenses into a high pressure subcooled gas.

상기 고압의 과냉액 가스는 모세관(3)(4)(5)에서 감압되며 감압된 가스는 솔레노이드 밸브(6)(7)(8)를 통과해 각각의 실내 유니트(9)(10)(11)로 유입되어진다.The high pressure subcooled gas is depressurized in the capillary tubes 3, 4, 5 and the decompressed gas passes through solenoid valves 6, 7, 8 to each indoor unit 9, 10, 11. It is introduced into).

이와같이 각각의 실내 유니트(9)(10)(11)로 유입된 가스는 각각의 실내 유니트(9)(10)(11)에서 증발이 일어나며 증발된 가스는 압축기(1)로 흡입되어진다.As such, the gas introduced into each indoor unit 9, 10, 11 is evaporated in each indoor unit 9, 10, 11 and the vaporized gas is sucked into the compressor 1.

상기 다실 공기조화기 시스템의 압축기(1)는 실내 유니트(9)(10)(11)중 어느하나에서 전원이 온(ON)되면 실내 유니트(9)(10)(11)에 상응하는 솔레이노이드 밸브(6)(7)(8)가 열리게 되면서 압축기(1)가 구동되어진다.The compressor 1 of the multi-chamber air conditioner system has a solenoid corresponding to the indoor units 9, 10 and 11 when the power is turned on in any one of the indoor units 9, 10 and 11. The compressor 1 is driven while the valves 6, 7 and 8 are opened.

제2도에서 도시한 것은 다실 공기조화기의 시스템 부품의 제어로직도로서(a)에서와 같이 시간(T1)에서 제1유니트(9)가 온되면 (d)에서와 같이 솔레노이드 밸브(6)가 열리면서 (g)에서와 같이 압축기(1)가 구동되어진다.2 shows the control logic of the system components of the multi-chamber air conditioner. When the first unit 9 is turned on at the time T 1 as in (a), the solenoid valve 6 as in (d) is shown. Is opened and the compressor 1 is driven as in (g).

그리고 (b)에서와 같이 시간(T2)에서는 제2유니트(10)가 온되어 (e)에서와 같이 솔레노이드 밸브(7)가 알려진다.And at time T 2 as in (b) the second unit 10 is turned on so that the solenoid valve 7 is known as in (e).

이에따라 제1유니트(9)와 제2유니트(10)가 설정온도제어를 하다가 제1유니트(9)와 제2유니트(10)가 모두 설정온도에 도달하게되면 시간(T3)에서 오프(OFF)상태가 된다.Accordingly, when the first unit 9 and the second unit 10 control the set temperature, and both the first unit 9 and the second unit 10 reach the set temperature, the unit is turned off at the time T 3 . ) State.

상기에서와 같이 시간(T3)에서 제1유니트(9)와 제2유니트(10)가 모두 설정온도에 도달되어 오프상태가 되므로 실내기의 설정온도스위치가 오프되어 (g)에서와같이 압축기(1)도 멈추게 되고 또한, 각각의 솔레이노이드 밸브(6)(7)(8)도 모두 닫혀지게된다.As described above, since both the first unit 9 and the second unit 10 reach the set temperature at the time T3 and are turned off, the set temperature switch of the indoor unit is turned off so that the compressor 1 as in (g). The solenoid valves 6, 7 and 8 are also closed.

그러나 이와같이 동작하는 종래의 다실 공기조화기는 실내 유니트가 온되어 압축기를 재기동시킬때 솔레노이드 밸브가 열려도 고압과 저압의 압력차로 인하여 압력평형이 이루어 지지않아 압축기 기동토오크가 증가되어 모터가 소손되거나 압축기의 재기동이 이루어지지 않는 문제점이 있었다.However, in the conventional multi-chamber air conditioner operating as described above, even if the solenoid valve is opened when the indoor unit is turned on, the pressure is not balanced due to the pressure difference between the high pressure and the low pressure. There was a problem that the restart is not made.

또한 압축기가 구동되더라도 압축기의 수명이 단축되는등의 제반 문제점이 있었다.In addition, even if the compressor is driven, there are various problems such as shortening the life of the compressor.

따라서 본발명은 상기한 종래기술의 문제점을 해결하고자 제안된 것으로서, 압축기 정지후에도 솔레노이드 밸브를 일정시간동안 전부 열어서 고압과 저압의 압력차를 줄이므로서 압력평형을 유지하여 압축기의 재기동을 원활하게 이루어지도록 하는데 그 목적이 있다.Therefore, the present invention has been proposed to solve the above problems of the prior art, and even after the compressor is stopped, the solenoid valve is opened for a predetermined time to reduce the pressure difference between high and low pressure, thereby maintaining the pressure balance and smoothly restarting the compressor. The purpose is to make.

이러한 목적달성을 위한 본발명은 압축기에서 토출되는 고온고압의 가스를 모세관에서 감압시켜 고압의 과냉액 가스로 형성하는 감압단계와, 이 감압단계에서 감압된 고압의 과냉액 가스가 실내 유니트로 유입되는 것을 솔레노이드 밸브로 조절하는 유입조절단계와, 이 유입조절단계에서 고압의 과냉액 가스의 유입을 조절하는 솔레노이드 밸브를 압축기 정지후에도 일정시간(T)동안 전부 열어서 고압과 저압의 압력차를 줄인는 압력평형단계로 이루어짐으로 달성되는 것이다.The present invention for achieving the object is a depressurization step of reducing the high temperature and high pressure gas discharged from the compressor in a capillary tube to form a high pressure subcooled liquid gas, and the high pressure subcooled gas decompressed in this decompression step is introduced into the indoor unit Inlet control step to control the solenoid valve, and in this inlet control step, the solenoid valve that controls the inflow of high pressure subcooled gas is opened for a certain time (T) even after the compressor is stopped to reduce the pressure difference between high pressure and low pressure. It is achieved by the steps.

본발명의 다실 공기조화기와 그 주변부의 구성은 제1도에서 도시한 바와같은 종래의 경우와 동일하므로 이에대한 설명은 생략한다.Since the configuration of the multi-room air conditioner and its peripheral portion of the present invention is the same as in the conventional case as shown in FIG. 1, description thereof will be omitted.

이와같이 구성된 본발명의 다실 공기조화기에 관련된 다실 공기조화기의 압평형방법은 제3도에서 도시한 다실 공기조화기의 시스템 부품의 제어로직도에 의거하여 상세히 설명하면 다음과 같다.The pressure balancing method of the multi-room air conditioner related to the multi-room air conditioner of the present invention configured as described above will be described in detail based on the control logic of the system components of the multi-room air conditioner shown in FIG.

(a)에서와 같이 시간(T1)에서 제 1 유니트(9)가 온되면 (d)에서와 같이 솔레노이드밸브(6)가 열리면서 (g)에서와같이 압축기(1)가 구동된다.When the first unit 9 is turned on at time T 1 as in (a), the solenoid valve 6 is opened as in (d) and the compressor 1 is driven as in (g).

그리고 (b)에서와 같이 시간(T2)에서는 제 2 유니트(10)가 온되어 (e)에서와 같이 솔레노이드 밸브(7)가 열린다.And at time T 2 as in (b), the second unit 10 is turned on and the solenoid valve 7 is opened as in (e).

이에따라 제1유니트(9)와 제 2 유니트(10)가 설정온도제어를 하다가 제 1 유니트(9)와 제 2 유니트(10)가 모두 설정온도에 도달하게 되면 시간(T3)에서 오프상태가 된다.Accordingly, when the first unit 9 and the second unit 10 control the set temperature, and the first unit 9 and the second unit 10 both reach the set temperature, the off state is turned off at time T 3 . do.

상기와 같이 시간(T3)에서 제 1 유니트(9)와 제 2 유니트(10)가 모두 설정온도에 도달되어 오프상태가 되면 실내기의 설정온도스위치가 오프되어 (g)에서와 같이 압축기(1)는 멈춰지지만 각각의 솔레노이드 밸브(6)(7)(8)는 (d)(e)(f)에서와 같이 일정시간(T)도안 무조건 열어서 고압과 저압의 압력차를 줄여서 압력평형을 이루도록 한다.As described above, when both the first unit 9 and the second unit 10 reach the set temperature at the time T 3 and are turned off, the set temperature switch of the indoor unit is turned off and the compressor 1 as shown in (g). ) Stops, but each solenoid valve (6) (7) (8) is opened for a certain period of time (T) as in (d) (e) (f) to reduce the pressure difference between high and low pressure to achieve pressure balance. do.

상기 일정시간(T)은 보통 2~3분정도로 하고 이 시간동안에는 실내기의 설정온도스위치가 온상태로 되어도 압축기(1)는 기동시키지 않는다.The constant time T is usually about 2 to 3 minutes, and during this time, the compressor 1 is not started even when the set temperature switch of the indoor unit is turned on.

여기서 본발명은 히드 펌프 다실 공기조화기에도 적용이 가능하다.The present invention is also applicable to the heat pump tea room air conditioner.

이상에서 상세히 설명한 바와같이 압축기가 정지된 후에도 솔레노이드 밸브를 일정시간동안 열어서 고압과 저압을 평압상태로 만들어 압력평형이 이루어져서 압축기의 재기동의 원활하게 이루어지는 효과가 있다.As described in detail above, even after the compressor is stopped, the solenoid valve is opened for a predetermined time to make the high pressure and the low pressure flat, so that the pressure is balanced to restart the compressor smoothly.

또한 고저압차이에 의해서 발생되는 기동토오크가 감속될 뿐만아니라 압축기의 수명이 증가되는 효과가 있다.In addition, the starting torque generated by the high and low pressure difference is reduced, as well as the life of the compressor is increased.

Claims (1)

압축기에서 토출되는 고온고압의 가스를 모세관에서 감압시켜 고압의 과냉액 가스로 형성하는 감압단계와, 상기 감압단계에서 감압된 고압의 과냉액 가스가 실내 유니트로 유입되는 것을 솔레노이드 밸브로 조절하는 유입조절단계와, 상기 유입조절단계에서 고압의 과냉액 가스의 유입을 조절하는 솔레노이드 밸브를 압축기 정지후에도 일정시간(T)동안 전부 열어서 고압과 저압의 압력차를 줄이는 압력평형단계로 이루어지는 것을 특징으로 하는 다실 공기조화기의 압평형방법.A pressure reducing step of reducing the high temperature and high pressure gas discharged from the compressor in a capillary tube to form a high pressure subcooled liquid gas, and an inflow control for controlling the inflow of the high pressure subcooled liquid gas reduced in the depressurization step into an indoor unit using a solenoid valve And the pressure equalization step of reducing the pressure difference between the high pressure and the low pressure by fully opening the solenoid valve for controlling the inflow of the high pressure subcooled gas in the inflow control step for a predetermined time (T) even after the compressor is stopped. Pressure balancing method of air conditioner.
KR1019950034576A 1995-10-09 1995-10-09 Stable presser method of multi-airconditioner KR0147098B1 (en)

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Publication number Priority date Publication date Assignee Title
WO2001094857A1 (en) * 2000-06-07 2001-12-13 Samsung Electronics Co., Ltd. Control system for starting of air conditioner and control method thereof
AU2410601A (en) * 2000-06-07 2001-12-17 Samsung Electronics Co., Ltd. System for controlling starting of air conditioner and control method thereof
KR100608684B1 (en) * 2004-08-20 2006-08-08 엘지전자 주식회사 Solenoid valve control method for airconditioner
KR100608683B1 (en) * 2004-08-20 2006-08-08 엘지전자 주식회사 Airconditioner and his power saving drive method

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