KR20030041688A - Device for connecting capillary tube to evaporator for refrigerator - Google Patents

Device for connecting capillary tube to evaporator for refrigerator Download PDF

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Publication number
KR20030041688A
KR20030041688A KR1020010072752A KR20010072752A KR20030041688A KR 20030041688 A KR20030041688 A KR 20030041688A KR 1020010072752 A KR1020010072752 A KR 1020010072752A KR 20010072752 A KR20010072752 A KR 20010072752A KR 20030041688 A KR20030041688 A KR 20030041688A
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KR
South Korea
Prior art keywords
refrigerant
evaporator
tube
bush
capillary tube
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KR1020010072752A
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Korean (ko)
Inventor
오명우
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주식회사 엘지이아이
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Application filed by 주식회사 엘지이아이 filed Critical 주식회사 엘지이아이
Priority to KR1020010072752A priority Critical patent/KR20030041688A/en
Publication of KR20030041688A publication Critical patent/KR20030041688A/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00Evaporators; Condensers
    • F25B39/02Evaporators
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/37Capillary tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00General 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
    • F25B2400/05Compression system with heat exchange between particular parts of the system
    • F25B2400/052Compression system with heat exchange between particular parts of the system between the capillary tube and another part of the refrigeration cycle

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

PURPOSE: A device for connecting a capillary tube to an evaporator is provided to minimize expansion noises of the refrigerant flowing from the capillary tube into the refrigerant tube. CONSTITUTION: A device comprises a connection tube(10) for connecting a capillary tube(20) of a refrigerating cycle and a refrigerant tube of an evaporator; and a bush(30) mounted within the connection tube, which has a throttle portion(32) having a relatively smaller diameter and an expansion portion(34) having a diameter gradually expanding as it goes toward the downstream of the throttle portion. The refrigerant supplied to the refrigerant tube of the evaporator passes through the throttle portion and expansion portion of the bush. The refrigerant discharged from the capillary tube has a reduced pressure while passing through the throttle portion of the bush, to thereby prevent a sudden expansion of the refrigerant.

Description

냉장고의 모세관과 증발기 연결장치{Device for connecting capillary tube to evaporator for refrigerator}Device for connecting capillary tube to evaporator for refrigerator

본 발명은 냉장고에서 모세관과 증발기를 연결하는 장치에 관한 것으로, 더욱 상세하게는 냉매의 팽창시 발생하는 소음을 억제할 수 있도록 구성되는 연결장치에 관한 것이다.The present invention relates to an apparatus for connecting a capillary tube and an evaporator in a refrigerator, and more particularly, to a connecting apparatus configured to suppress noise generated when the refrigerant is expanded.

냉장고의 내부에는 냉동싸이클이 내장되어 있고, 이러한 냉동싸이클에서 생성되는 냉기에 의하여, 냉장고의 내부에는 냉기가 공급되어 소정의 저온상태를 유지할 수 있도록 구성된다.A freezing cycle is built in the inside of the refrigerator, and by the cold air generated in the freezing cycle, the inside of the refrigerator is configured to be supplied with cold air to maintain a predetermined low temperature.

일반적으로 냉동싸이클은, 냉매를 상변화를 이용하여 외측면에서 냉기를 생성하는 증발기와, 상기 증발기에서 나온 기화된 냉매를 압축하는 압축기, 압축된 냉매를 응축시키는 응축기, 그리고 응축기에서의 액상 냉매를 저온저압화시키는 모세관으로 구성되고 있다. 상기 모세관에서는 응축된 냉매를 저온 저압화시키게 되고, 이렇게 저온 저압상태의 액상 냉매는 증발기 측으로 유입된다.In general, a refrigeration cycle includes an evaporator that generates cool air on the outer surface using phase change of a refrigerant, a compressor that compresses vaporized refrigerant from the evaporator, a condenser that condenses the compressed refrigerant, and a liquid refrigerant in the condenser. It consists of a capillary tube which is made low temperature and low pressure. In the capillary, the condensed refrigerant is reduced in low temperature, and thus the liquid refrigerant in the low temperature low pressure state flows into the evaporator.

그리고 냉동싸이클에서, 냉기를 생성하는 증발기(2)는, 도 1에 도시한 바와 같이, 냉매관(2a)과 상기 냉매관의 주변에 설치되어 열교환 면적을 넓히기 위한 핀(2b)로 구성된다. 상기 증발기(2)의 냉매관(2a)의 내부로는, 모세관(4)에서 나오는 저온저압의 액상 냉매가 유입된다.In the refrigerating cycle, the evaporator 2 which generates cold air is constituted by a coolant tube 2a and a fin 2b which is provided around the coolant tube to widen the heat exchange area, as shown in FIG. The low-temperature low-pressure liquid refrigerant flowing from the capillary tube 4 flows into the refrigerant tube 2a of the evaporator 2.

상기 모세관과 냉매관(2a)의 연결은, 연결파이프(6)에 의하여 어루어진다. 여기서 상기 연결파이프(6)는 도시한 바와 같이 상기 모세관(4)에서 냉매관(2a)으로 냉매를 연결할 수 있도록 연결하게 되는데, 그 단면을 살펴보면 좁은 모세관(4)에서 넓은 냉매관(2a)을 연결하도록 단순히 단면적이 넓어지는 형상을 가지고 있음을 알 수 있다.The connection between the capillary tube and the coolant tube 2a is performed by the connecting pipe 6. Here, the connecting pipe 6 is connected to connect the refrigerant from the capillary tube 4 to the refrigerant tube 2a as shown in the figure. Looking at the cross section, the narrow refrigerant tube 4 is connected to the wide refrigerant tube 2a. It can be seen that it has a shape that simply cross-sectional area to connect.

이와 같은 종래의 연결파이프(6)에 의하면, 상기 모세관(4)에서 증발기의 냉매관(2a)으로 냉매가 이동하면서, 냉매는 급속하게 팽창하게 되어 냉매의 팽창음이 발생하게 된다. 이러한 냉매의 팽창음은 실질적으로 냉장고의 동작시 발생하는 일종의 소음이기 때문에, 가능하면 저감시키는 것이 바람직하다.According to the conventional connection pipe 6 as described above, while the refrigerant moves from the capillary tube 4 to the refrigerant tube 2a of the evaporator, the refrigerant expands rapidly, and the expansion sound of the refrigerant is generated. Since the expansion sound of the refrigerant is substantially a kind of noise generated during the operation of the refrigerator, it is desirable to reduce it if possible.

본 발명은 상술한 바와 같은 문제점을 해결하기 위한 것으로, 모세관과 증발기 냉매관의 연결부분에서 냉매의 팽창소음을 최소화시키는 것을 주된 목적으로 하고 있다.The present invention is to solve the above problems, the main object is to minimize the expansion noise of the refrigerant at the connection portion of the capillary tube and the evaporator refrigerant pipe.

도 1은 종래의 연결장치의 개략적 구성을 보인 예시도.1 is an exemplary view showing a schematic configuration of a conventional connecting device.

도 2는 본 발명에 의한 연결부분의 구성을 보인 단면도.Figure 2 is a cross-sectional view showing the configuration of the connecting portion according to the present invention.

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

10 ..... 연결관20 ..... 모세관10 ..... Connector 20 ..... Capillary

30 ..... 부시32 ..... 교축부30 ..... bush 32 ..... throttle

34 ..... 확대부34 ..... Enlarged section

상기 목적을 달성하기 위한 본 발명에 의하면, 냉동싸이클의 모세관과 증발기의 냉매관을 연결하는 연결관의 내부에, 직경이 상대적으로 작은 교축부와, 상기 교축부의 하류측에서 직경이 점점 확대되도록 성형되는 확대부를 구비하는 부시를 설치하여, 증발기의 냉매관으로 공급되는 냉매가 상기 부시의 교축부 및 확대부를 경유하는 것을 특징으로 한다.According to the present invention for achieving the above object, the inner diameter of the connecting tube connecting the capillary tube of the refrigeration cycle and the refrigerant tube of the evaporator, the diameter of the relatively small axial axis, and the diameter of the downstream downstream of the throttle portion is gradually expanded A bush having an enlarged portion to be molded is provided, and the refrigerant supplied to the refrigerant pipe of the evaporator passes through the throttle portion and the enlarged portion of the bush.

이와 같은 본 발명의 부시의 구성에 의하여, 냉매의 급격한 팽창소음을 최소화할 수 있어서, 실질적으로 보다 정숙하게 운전되는 냉장고를 제공할 수 있게 되는 효과를 기대할 수 있게 된다.By the configuration of the bush of the present invention, it is possible to minimize the rapid expansion noise of the refrigerant, it can be expected to provide an effect that can provide a refrigerator that is substantially quieter operation.

다음에는 도면에 도시한 실시예에 기초하면서 본 발명에 대하여 더욱 상세하게 살펴보기로 한다.Next, the present invention will be described in more detail with reference to the embodiments shown in the drawings.

도시한 바와 같이, 모세관(20)은 연결관(10)를 통하여, 증발기의 냉매관(도시 생략)과 연결되고 있다. 그리고 본 발명에 의하면, 상기 연결관(10)의 중심부분에는 냉매가 통과할 수 있는 통로(32,34)를 구비하는 부시(30)가 설치되어 있음을 알 수 있다.As shown, the capillary tube 20 is connected to the refrigerant tube (not shown) of the evaporator through the connecting tube 10. In addition, according to the present invention, it can be seen that the bush 30 having passages 32 and 34 through which the refrigerant can pass is installed in the central portion of the connecting pipe 10.

연결관(10)의 입구부분에 설치되어 있는 부시(30)는, 냉매가 통과할 수 있는 통로를 구비하고 있는, 이러한 통로는, 직경이 축소된 교축부(32)와, 상기 교축부(32)의 하류측에서, 관경이 점점 확대되는 확대부(34)로 구성되고 있다. 따라서 모세관(20)에서 토출되는 액상의 냉매는, 상기 연결관(10)으로 유입된 후, 본 발명에 의한 부시(30)를 통과하게 된다. 이 때 상기 부시(30)의 교축부(32)는, 실질적으로 모세관(20)의 직경보다 작은 직경을 가지는 것으로, 냉매가 상기 교축부(32)를 통과하면서 압력이 더욱 떨어지도록 구성되는 부분이다. 그리고 상기 부시(30)의 확대부(34)를 통과하면서, 냉매는 보다 안정적으로 팽창하게 될 것이다.The bush 30 provided at the inlet of the connecting pipe 10 has a passage through which refrigerant can pass. The passage includes an throttle portion 32 having a reduced diameter and the throttle portion 32. On the downstream side of), it is comprised by the expansion part 34 which enlarges a tube diameter. Therefore, the liquid refrigerant discharged from the capillary tube 20 is introduced into the connecting tube 10 and then passes through the bush 30 according to the present invention. At this time, the throttle part 32 of the bush 30 has a diameter substantially smaller than the diameter of the capillary tube 20, and is a part configured to further reduce the pressure while the refrigerant passes through the throttle part 32. . And while passing through the enlarged portion 34 of the bush 30, the refrigerant will expand more stably.

따라서 상기 모세관(20)을 나오는 냉매는, 상기 부시(30)의 교축부(32)를 통과하면서 압력이 더욱 떨어지게 된다. 따라서 본 발명에 의한 냉매의 흐름시 급팽창이 방지되어 급팽창에 의한 냉매팽창음이 더욱 저감될 수 있게 된다.Therefore, the refrigerant exiting the capillary tube 20 is further reduced in pressure while passing through the throttle portion 32 of the bush 30. Therefore, the rapid expansion during the flow of the refrigerant according to the present invention is prevented it is possible to further reduce the refrigerant expansion sound by the expansion.

본 발명에 있어서는 모세관(20)과 증발기의 냉매관을 연결하는 연결관(10)의 내부에 부시(30)를 설치하는 실시예를 보이고 있다. 그러나 본 발명은 이러한 실시예에 의하여 한정될 수는 없을 것이다. 예를 들면 상기 부시(30)를, 상술한 바와 같은 연결관(10)의 내부에 설치하지 않고, 증발기의 냉매관(도시 생략)의 입구부분에 설치하고, 모세관과 냉매관을 직접 연결하는 것도 가능함은 물론이다.In the present invention, an embodiment in which the bush 30 is installed in the connection pipe 10 connecting the capillary tube 20 and the refrigerant pipe of the evaporator is shown. However, the present invention will not be limited by these examples. For example, the bush 30 is not provided inside the connection pipe 10 as described above, but is installed at the inlet of the refrigerant pipe (not shown) of the evaporator, and directly connects the capillary pipe and the refrigerant pipe. Of course it is possible.

즉, 본 발명에 있어서는 상술한 바와 같이, 냉매가 통과하는 부분을 교축부(32) 및 확대부(34)를 가지도록 성형한 부시를 경유한 다음, 모세관에서의 냉매가 증발기의 냉매관으로 공급되도록 구성하는 것을 기본적인 기술적 사상으로 하고 있는 것이다.That is, in the present invention, as described above, the portion through which the refrigerant passes is passed through the bush formed to have the throttle portion 32 and the enlarged portion 34, and then the refrigerant in the capillary is supplied to the refrigerant tube of the evaporator. The basic technical idea is to configure as much as possible.

이와 같은 본 발명의 기본적인 기술적 사상의 범주 내에서, 당업계의 통상의 지식을 가진 자에게 있어서는 다른 많은 변형이 가능함은 물론이고, 본 발명은 첨부한 특허청구의 범위에 의하여 해석되어야 할 것이다.Within the scope of the basic technical spirit of the present invention, many other modifications are possible to those skilled in the art, and the present invention should be construed by the appended claims.

이상에서 살펴본 바와 같은 본 발명에 의하면, 본 발명의 부시(30)에 의하여, 모세관에서 증발기의 냉매관으로 유입되는 냉매의 팽창소음을 최소화하고 있음을 알 수 있다. 따라서 소음의 발생을 최소화하는 것에 의하여, 보다 정숙한 상태로 운전 가능한 냉장고를 구현할 수 있게 된다.According to the present invention as described above, it can be seen that by the bush 30 of the present invention, the expansion noise of the refrigerant flowing into the refrigerant tube of the evaporator from the capillary tube is minimized. Therefore, by minimizing the generation of noise, it is possible to implement a refrigerator that can operate in a quieter state.

Claims (2)

냉동싸이클의 모세관(20)과 증발기의 냉매관을 연결하는 연결관(10)의 내부에, 직경이 상대적으로 작은 교축부(32)와, 상기 교축부의 하류측에서 직경이 점점 확대되도록 성형되는 확대부(34)를 구비하는 부시(30)를 설치하여, 증발기의 냉매관으로 공급되는 냉매가 상기 부시의 교축부 및 확대부를 경유하는 것을 특징으로 하는 냉장고의 모세관과 증발기 연결장치.Inside the connecting tube 10 connecting the capillary tube 20 of the refrigerating cycle and the refrigerant tube of the evaporator, the throttle portion 32 having a relatively small diameter is formed so as to gradually increase in diameter on the downstream side of the throttle portion. Capillary and evaporator connecting device of the refrigerator, characterized in that provided with a bush (30) having an enlarged portion 34, the refrigerant supplied to the refrigerant pipe of the evaporator via the throttle and the enlarged portion of the bush. 냉동싸이클의 모세관에서 저온저압의 액상 냉매를 공급받는, 증발기의 냉매관 입구부분에, 직경이 상대적으로 작은 교축부(32)와, 상기 교축부의 하류측에서 직경이 점점 확대되도록 성형되는 확대부(34)를 구비하는 부시(30)를 설치하여, 증발기의 냉매관으로 공급되는 냉매가 상기 부시의 교축부 및 확대부를 경유하는 것을 특징으로 하는 냉장고의 모세관과 증발기 연결장치.At the inlet portion of the refrigerant pipe of the evaporator, which is supplied with a low-temperature, low-pressure liquid refrigerant from the capillary tube of the refrigeration cycle, a throttle portion 32 having a relatively small diameter, and an enlarged portion formed to gradually increase in diameter downstream of the throttle portion. Capillary and evaporator connecting device of the refrigerator, characterized in that the bush (30) having a 34 is provided, the refrigerant supplied to the refrigerant pipe of the evaporator passes through the throttle and the enlarged portion of the bush.
KR1020010072752A 2001-11-21 2001-11-21 Device for connecting capillary tube to evaporator for refrigerator KR20030041688A (en)

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KR100873366B1 (en) * 2007-12-26 2008-12-10 학교법인 두원학원 A pulsation reducing type compressor
KR100885562B1 (en) * 2003-01-15 2009-02-24 엘지전자 주식회사 Expansion valve
CN114087796A (en) * 2020-08-05 2022-02-25 青岛海尔电冰箱有限公司 Refrigerating system, control method thereof and refrigerating appliance with refrigerating system
US11454427B2 (en) 2018-08-13 2022-09-27 Samsung Electronics Co., Ltd. Air conditioner

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