KR100273658B1 - Compressor - Google Patents

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Publication number
KR100273658B1
KR100273658B1 KR1019970074497A KR19970074497A KR100273658B1 KR 100273658 B1 KR100273658 B1 KR 100273658B1 KR 1019970074497 A KR1019970074497 A KR 1019970074497A KR 19970074497 A KR19970074497 A KR 19970074497A KR 100273658 B1 KR100273658 B1 KR 100273658B1
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South Korea
Prior art keywords
compressor
discharge port
main tube
resonator
adjustment device
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KR1019970074497A
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Korean (ko)
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KR19990054637A (en
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황효성
국두윤
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김덕중
사단법인고등기술연구원연구조합
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0055—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes
    • F04B39/0066—Pulsation and noise damping means with a special shape of fluid passage, e.g. bends, throttles, diameter changes, pipes using sidebranch resonators, e.g. Helmholtz resonators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0033—Pulsation and noise damping means with encapsulations
    • F04B39/0038—Pulsation and noise damping means with encapsulations of inlet or outlet channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/125—Cylinder heads

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

PURPOSE: A compressor is provided to offset vibration at a discharge port of a compressor with a resonator by mounting the Helmholtz resonator at the front end of the discharge port. CONSTITUTION: A discharge port of a compressor consists of: a main tube(1) having a neck portion(a) connected to a discharge port pipe(5) and an extended front end portion(b) having a larger bore than one of the neck portion; an annular rod-shaped volume adjustment device(2) inserted into the extended front end portion of the main tube; and a cover(4) sealing the front opening of the main tube. A straight groove(p) is formed outside the volume adjustment device to push into or pull out the volume adjustment device from the discharge port pipe. An O-ring is set between the front end of the main tube and the cover to keep airtight therebetween. The compressor has a Helmholtz resonator at the discharge port. Therefore, the resonator reduces noise in starting the compressor.

Description

압축기compressor

본 발명은 공진기(共振器)를 구비한 압축기(compressor)에 관한 것으로서, 더욱 상세하게는, 압축기의 토출구측 선단부에 헤름홀쯔(Helmholtz) 공진기를 장착함으로써 가동시의 소음이 현저히 저감된 압축기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compressor having a resonator. More particularly, the present invention relates to a compressor in which a noise during operation is significantly reduced by mounting a Helmholtz resonator at the distal end of the compressor. will be.

일반적 형태의 압축기는 구동모터 및 그 회전축 선단부에 장치된 압축펌프를 포함하여 구성되며, 냉매 또는 유압유 등의 작동유체를 고압으로 압축하여 관련부위로 공급하는 주요 역할을 수행하는 부품이다. 그 압축방법 여하에 따라 여러 종류가 있다.The compressor of the general type is configured to include a drive motor and a compression pump installed at the front end of the rotating shaft, and is a part that plays a main role of supplying the related parts by compressing a working fluid such as a refrigerant or hydraulic oil at high pressure. There are many kinds of compression methods.

그러나, 이러한 종래의 압축기는 그 종류에 관계없이 공통적으로 갖는 근본적인 문제점이 있었다.However, such a conventional compressor has a fundamental problem in common regardless of its kind.

즉, 모터 등 회전관련 부품을 갖는 장치류가 모두 그러하듯이, 해당 회전요소의 회전주기에 따라 일정 형태의 맥동이 가해진다는 점이다. 맥동의 세기가 미약하다면 별다른 문제가 없겠지만, 압축기의 경우는 정도가 심하여 상당한 소음을 유발하는 관계로 그 대책이 항상 강구되어왔다.That is, as is the case with all devices having a rotation-related component such as a motor, a certain form of pulsation is applied according to the rotation period of the rotating element. If the pulsation strength is weak, there will be no problem, but the compressor has been severe enough to cause considerable noise, so the countermeasures have always been taken.

일예로서, 가전제품용 압축기의 경우, 상기 맥동을 줄이기 위해 최근 공진기를 적용하고 있으나 밸브(valve) 부위가 얇아 어려움을 겪고 있는 실정이다.For example, in the case of a compressor for a home appliance, a resonator has recently been applied to reduce the pulsation, but a situation in which a valve is thin is difficult.

본 발명은 이러한 종래의 문제점을 감안하여 안출한 것으로서, 본 발명의 목적은, 가동시의 소음이 대폭 줄어든 압축기를 제공하는 데 있다.The present invention has been devised in view of such a conventional problem, and an object of the present invention is to provide a compressor in which the noise during operation is greatly reduced.

도 1 은 본 발명 실시예 압축기의 토출구측 구조를 나타낸 단면도이다.BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view showing a discharge port side structure of an embodiment of the present invention compressor.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1 : 메인 튜브 2 : 체적조절장치1: main tube 2: volume control device

3 : O링 4 : 캡3: O ring 4: cap

이러한 목적을 달성하기 위한 본 발명의 압축기는, 그 토출구 선단부에 헤름홀쯔 공진기를 장착한 특징이 있다. 즉, 구동모터의 회전 및 작동유체의 가압배출로 인해 압축기 토출구측에 주기적으로 발생하는 진동을 상기 공진기로 상쇄시킴으로써 상기 진동관련 소음이 저감되도록 한 것이다.The compressor of the present invention for achieving the above object is characterized in that a Hermholtz resonator is mounted at the distal end of the discharge port. That is, the vibration-related noise is reduced by canceling the vibration generated periodically at the compressor discharge port side due to the rotation of the driving motor and the pressure discharge of the working fluid to the resonator.

이하, 본 발명 실시예의 압축기를 첨부도면에 의거하여 상세히 설명한다.Hereinafter, a compressor of an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

본 발명의 압축기를 구성하는 토출구부는, 도1에 나타낸 바와 같이, 해당 토출구 파이프(5)에 연결된 목부분(a) 및 그보다 넓은 내경을 갖는 확대선단부(b)로 구성된 메인 튜브(main tube, 1)와, 이 메인튜브의 선단 확대선단부(b)에 삽설되며 외주면이 나사로 형성된 환봉상의 체적조절장치(2)와, 메인 튜브(1) 선단 개구부를 밀봉하는 카버(cover, 4)를 포함하여 이루어진다.As shown in Fig. 1, the discharge port portion constituting the compressor of the present invention comprises a main tube 1 composed of a neck portion a connected to the discharge pipe 5 and an enlarged tip portion b having a larger inner diameter. ), A rod-shaped volume adjusting device (2) inserted into the tip expanding portion (b) of the main tube and having an outer circumferential surface thereof, and a cover (4) for sealing the tip opening of the main tube (1). .

상기 체적조절장치(2)의 외측단에는, 해당 체적조절장치를 상기 토출구 파이프(5)쪽으로 밀어넣거나 또는 빼낼 수 있도록, 일자형(一字形) 홈(p)이 형성되어 있다. 또한, 상기 메인 튜브(1) 선단과 카버(4) 사이에는 밀봉(sealing)을 위한 오링(O-ring, 3)이 개재됨으로써 양자간의 기밀이 유지된다.At the outer end of the volume control device 2, a straight groove p is formed so that the volume control device can be pushed in or out of the discharge pipe 5. In addition, an O-ring (3) for sealing is interposed between the front end of the main tube 1 and the cover 4 to maintain airtightness between the two.

여기서, 상기 구조로 된 압축기 토출구부가 해당 압축기의 진동 및 소음억제에 기여할 수 있는 원리를 설명한다.Here, the principle that the compressor discharge port having the above structure can contribute to the vibration and noise suppression of the compressor.

우선, 상기 토출구부는 헤름홀쯔 공진기를 구성하는 바 이때의 공진주파수는 다음과 같이 산출된다.First, the discharge port portion constitutes a Hermholtz resonator. The resonance frequency at this time is calculated as follows.

fr= c/2π

Figure 1019970074497_B1_M0001
(Hz)f r = c / 2π
Figure 1019970074497_B1_M0001
 (Hz)

fr: 공진주파수 c : 작동유체 내에서의 음속(m/sec)f r : resonant frequency c: sound velocity in working fluid (m / sec)

Sp: 목의 단면적(m2) L : 목의 길이(m)S p : Neck cross section (m 2 ) L: Neck length (m)

Leq: 목의 유효길이(m, L+1.7D/2) D : 목의 직경(m)L eq : Effective length of neck (m, L + 1.7D / 2) D: Diameter of neck (m)

V : 목의 부피(m3)V: volume of neck (m 3 )

즉, 상기 메인 튜브(1) 및 체적조절장치(2)를 포함한 본 발명 압축

Figure 1019970074497_B1_M0002
기의 토출구부 구조는, 상기 공진주파수(fr)와 동일한 주파수를 갖는 진동을 상쇄시킬 수 있게 된다.That is, the present invention compression including the main tube (1) and the volume control device (2)
Figure 1019970074497_B1_M0002
 The discharge port structure of the group can cancel the vibration having the same frequency as the resonance frequency f r .

따라서, 상기 메인 튜브(1) 관련치수를 설계하기에 앞서, 해당 압축기 토출구부에서 발생하는 소위 구조기인소음(structure-born noise)을 정밀분석하여 제거대상으로 할 주파수대역을 우선 파악해야 한다. 그런 다음, 상기 관련수치를 선정하고 그에 따라 상기 메인 튜브(1)를 포함한 헤름헬쯔 공진기를 제작하여 해당 압축기의 토출구에 연결하면 된다.Therefore, prior to designing the dimensions related to the main tube 1, it is necessary to precisely analyze the so-called structure-born noise generated at the compressor discharge port portion to first identify the frequency band to be removed. Then, the relevant value is selected and accordingly manufactured Herm Hetz resonator including the main tube 1 and connected to the discharge port of the compressor.

이때, 상기 체적조절장치(2)는 메인 튜브(1)를 구성하는 확대선단부(2)내에서 전진 또는 후퇴가능한 관계로, 이를 적절히 조절함으로써 해당 공진주파수(fr)를 자유로이 변화시킬 수 있다.At this time, the volume control device (2) is capable of moving forward or backward in the enlarged front end (2) constituting the main tube (1), by appropriately adjusting the resonance frequency (f r ) can be freely changed.

한편, 상기 본 발명 실시예에서는 메인 튜브(1)를 목부분(a) 및 확대선단부(b)를 갖는 구조를 예로 하여 설명하였으나, 상기 목부분(a)의 형상 또는 길이 등을 변경함으로써 동일한 흡음효과를 얻을 수도 있는 바 본 발명에서는 이를 특별히 한정하지 않는다.On the other hand, in the embodiment of the present invention, the main tube (1) has been described with an example having a neck portion (a) and an enlarged tip portion (b), the same sound absorption by changing the shape or length of the neck portion (a), etc. The effect can also be obtained The present invention is not particularly limited thereto.

즉, 압축기의 토출구 선단에 헤름홀쯔 공진기를 갖는 모든 형태의 압축기를 본 발명은 포함한다.That is, the present invention includes all types of compressors having a Hermholtz resonator at the tip of the discharge port of the compressor.

이상 설명한 바와 같이, 본 발명 압축기는, 해당 압축기의 토출구에 간단한 구조의 공진기를 장착함으로써 압축기 가동시의 소음을 대폭 줄일 수 있는 산업상 매우 유용한 발명이다.As described above, the compressor of the present invention is an industrially useful invention that can significantly reduce noise when the compressor is operated by attaching a resonator having a simple structure to the discharge port of the compressor.

Claims (4)

압축기 토출구 파이프(5)에 연결된 메인 튜브(1)와, 이 메인튜브의 선단부에 삽설된 체적조절장치(2)와, 메인 튜브(1) 선단 개구부를 밀봉하는 카버(cover, 4)를 포함하여 구성된 것을 특징으로 하는 압축기.A main tube (1) connected to the compressor outlet pipe (5), a volume control device (2) inserted into the tip of the main tube, and a cover (4) for sealing the tip opening of the main tube (1); Compressor, characterized in that configured. 제1항에 있어서, 상기 메인 튜브(1)가 해당 토출구 파이프(5)에 연결된 목부분(a) 및 그보다 넓은 내경을 갖는 확대선단부(b)로 구성된 것을 특징으로 하는 압축기.2. Compressor according to claim 1, characterized in that the main tube (1) consists of a neck portion (a) connected to the corresponding outlet pipe (5) and an enlarged tip portion (b) having a wider inner diameter. 제1항에 있어서, 상기 체적조절장치(2)의 외주면이 나사로 형성된 환봉상인 것을 특징으로 하는 압축기.The compressor according to claim 1, characterized in that the outer circumferential surface of the volume adjusting device (2) is a round bar formed by a screw. 제1항 또는 제3항에 있어서, 상기 체적조절장치(2)의 외측단에 일자형 홈(p)이 형성된 것을 특징으로 하는 압축기.4. Compressor according to claim 1 or 3, characterized in that a straight groove (p) is formed at the outer end of the volume control device (2).
KR1019970074497A 1997-12-26 1997-12-26 Compressor KR100273658B1 (en)

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