KR20060039226A - Apparatus strengthening shaft for hermetic rotary compressor - Google Patents

Apparatus strengthening shaft for hermetic rotary compressor Download PDF

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Publication number
KR20060039226A
KR20060039226A KR1020040088323A KR20040088323A KR20060039226A KR 20060039226 A KR20060039226 A KR 20060039226A KR 1020040088323 A KR1020040088323 A KR 1020040088323A KR 20040088323 A KR20040088323 A KR 20040088323A KR 20060039226 A KR20060039226 A KR 20060039226A
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KR
South Korea
Prior art keywords
rotating shaft
rotary compressor
hermetic rotary
reinforcement
shaft
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KR1020040088323A
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Korean (ko)
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조창영
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엘지전자 주식회사
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Priority to KR1020040088323A priority Critical patent/KR20060039226A/en
Publication of KR20060039226A publication Critical patent/KR20060039226A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0021—Systems for the equilibration of forces acting on the pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
    • F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
    • F04C18/356—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/008—Hermetic pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2210/00—Fluid
    • F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/40—Electric motor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S415/00—Rotary kinetic fluid motors or pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S417/00—Pumps

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

Abstract

본 발명은 밀폐형 회전식 압축기의 회전축 강화장치에 관한 것으로, 밀폐형 회전식 압축기의 회전축(4)의 몸체(4a)의 내부에 그 몸체(4a)보다 강성이 강한 재질의 봉형 또는 파이프형 보강재(10)가 삽입되어 구성된다. 이와 같은 본 발명은 회전축의 내부에 강성이 강한 보강재를 삽입하여 압축기 운전 중 회전축의 휨량을 최소화함으로써 전자음을 줄이고, 이에 의해 연삭 가공이 들어가는 회전축의 재질을 완화시켜 가공성을 향상시키며, 메인 상부 베어링의 보스부와 회전축과의 접촉부 길이를 축소시켜 회전효율을 향상시키는 이점이 있다.The present invention relates to a rotating shaft reinforcement device of a hermetic rotary compressor, wherein a rod-shaped or pipe-shaped reinforcement (10) of a rigid material than that of the body (4a) is provided inside the body (4a) of the rotary shaft (4) of the hermetic rotary compressor. It is inserted and constructed. The present invention reduces the electronic noise by inserting a rigid reinforcement inside the rotating shaft to minimize the amount of warp of the rotating shaft during compressor operation, thereby reducing the material of the rotating shaft to enter the grinding process to improve the workability, the main upper bearing There is an advantage of improving the rotational efficiency by reducing the length of the contact portion between the boss and the rotating shaft.

Description

밀폐형 회전식 압축기의 회전축 강화장치{APPARATUS STRENGTHENING SHAFT FOR HERMETIC ROTARY COMPRESSOR}Rotating shaft reinforcement device of hermetic rotary compressor {APPARATUS STRENGTHENING SHAFT FOR HERMETIC ROTARY COMPRESSOR}

도 1은 종래 밀폐형 회전식 압축기의 종단면도.1 is a longitudinal sectional view of a conventional hermetic rotary compressor.

도 2는 종래 밀폐형 회전식 압축기의 요부 종단면도.Figure 2 is a longitudinal sectional view of the main portion of a conventional hermetic rotary compressor.

도 3 내지 도 5는 본 발명에 의한 밀폐형 회전식 압축기의 회전축 강화장치에 관한 도면으로서,3 to 5 is a view of the rotating shaft reinforcement device of the hermetic rotary compressor according to the present invention,

도 3은 본 발명에 의한 밀폐형 회전식 압축기의 종단면도.Figure 3 is a longitudinal sectional view of the hermetic rotary compressor according to the present invention.

도 4는 회전축과 압축부를 보인 부분 종단면도.Figure 4 is a partial longitudinal cross-sectional view showing a rotating shaft and the compression portion.

도 5는 회전축을 보인 부분 종단면도.5 is a partial longitudinal cross-sectional view showing the axis of rotation.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

4 : 회전축 4a : 몸체4: axis of rotation 4a: body

10 : 보강재10: reinforcement

본 발명은 밀폐형 회전식 압축기의 회전축 강화장치에 관한 것으로, 특히 회전축의 내부에 강성이 강한 보강재를 삽입하여 압축기 운전 중 회전축의 휨량을 최 소화함으로써 전자음을 줄이고, 이에 의해 연삭 가공이 들어가는 회전축의 재질을 완화시켜 가공성을 향상시키며, 메인 상부 베어링의 보스부와 회전축과의 접촉부 길이를 축소시켜 회전효율을 향상시킬 수 있게 되는 밀폐형 회전식 압축기의 회전축 강화장치에 관한 것이다.The present invention relates to a rotating shaft reinforcing device of a hermetic rotary compressor, and particularly, by inserting a rigid reinforcement inside the rotating shaft to minimize the amount of warpage of the rotating shaft during compressor operation, thereby reducing the electronic sound, thereby reducing the material of the rotating shaft to enter the grinding process The present invention relates to a revolving shaft reinforcing device of a hermetic rotary compressor, which improves workability by reducing workability and reducing the length of a contact portion between the boss of the main upper bearing and the rotating shaft.

도 1은 종래 밀폐형 회전식 압축기의 종단면도이고, 도 2는 종래 밀폐형 회전식 압축기의 요부 종단면도로서, 이에 도시한 바와 같이 종래의 밀폐형 회전식 압축기는, 밀폐용기(1)의 내부에 전동기구부인 고정자(2) 및 회전자(3)가 설치되어 있고, 그 중 회전자(3)의 중심에는 회전축(4)이 열박음 등으로 결합되어 있으며, 그 회전축(4)의 하단부에는 압축기구부가 설치되어 있다.1 is a longitudinal sectional view of a conventional hermetic rotary compressor, and FIG. 2 is a longitudinal sectional view of a main part of a conventional hermetic rotary compressor, and as shown in the related art, a conventional hermetic rotary compressor may include a stator that is an electric mechanism part inside the hermetic container 1. 2) and the rotor 3 are provided, among which the rotating shaft 4 is coupled to the center of the rotor 3 by shrinkage, etc., and a compression mechanism is provided at the lower end of the rotating shaft 4. .

상기 압축기구부는 회전축이 관통되는 환형의 상부 및 하부베어링(5,6)과, 그 상부 및 하부베어링(5,6)의 사이에 양측면이 밀착되어 외주면이 밀폐용기(1)에 고정되고 흡입구(미부호)가 형성되는 환형의 실린더(7)와, 그 실린더(7)내에서 편심회전하도록 상기 회전축(4)에 의해 자전하는 롤링피스톤(8)과, 그 롤링피스톤(8)의 외주면에 결합되어 롤링피스톤(8)의 선회운동시 직선운동을 하면서 실린더(5)를 흡입공간과 압축공간으로 구분하는 베인(미도시)을 포함하여 이루어져 있다.The compressor sphere has both sides of the annular upper and lower bearings 5 and 6 through which the rotating shaft penetrates and between the upper and lower bearings 5 and 6 so that the outer circumferential surface is fixed to the airtight container 1 and the suction port ( An annular cylinder (7) having an unsigned sign, a rolling piston (8) rotated by the rotating shaft (4) so as to eccentrically rotate within the cylinder (7), and an outer peripheral surface of the rolling piston (8). In the rotational movement of the rolling piston (8) is made of a vane (not shown) to divide the cylinder 5 into a suction space and a compression space while performing a linear movement.

도면중 미설명 부호인 D는 토출보강재, A는 어큐뮬레이터이다.In the drawings, reference numeral D denotes a discharge reinforcing material, and A denotes an accumulator.

상기와 같이 구성된 종래의 밀폐형 회전식 압축기는 다음과 같이 동작된다.The conventional hermetic rotary compressor configured as described above operates as follows.

전동기구부에 전원이 공급되어 회전축(4)이 회전을 하게 되면, 냉매가스가 어큐뮬레이터(A)를 거쳐 실린더(7)의 내부로 유입되고, 그 유입된 냉매가스는 베인(미도시)이 상사점에 도달하였을 때에 흡입행정을 개시하여, 상기 회전축(4)과 함 께 롤링피스톤(8)의 회전운동에 의해 점차 압축되고, 그 압축가스의 압력이 어느 시점에 도달하였을 때 압축된 냉매가스는 밀폐용기(1)의 내부를 지나 토출보강재(D)를 통해 냉동사이클장치로 토출된다.When power is supplied to the electric motor unit and the rotating shaft 4 rotates, the refrigerant gas flows into the cylinder 7 through the accumulator A, and the introduced refrigerant gas has vanes (not shown). When it reaches to start the suction stroke, it is gradually compressed by the rotational movement of the rolling piston 8 together with the rotating shaft 4, and the compressed refrigerant gas is sealed when the pressure of the compressed gas reaches a certain point. Passed through the interior of the container (1) is discharged to the refrigeration cycle apparatus through the discharge reinforcing material (D).

이와 같은 종래의 밀폐형 회전식 압축기는 모터의 토오크(torque)에 의해 회전축(크랭크 샤프트)의 힘이 발생하고 고정자와 회전자가 서로 충돌을 일으켜 전자음이 발생하고, 이 전자음을 차단하기 위해 회전축의 재질의 강성을 높이게 되면 가공성이 저하되는 문제점이 있었으며, 메인 상부 베어링의 길이를 증대시키게 되면 마찰에 의한 압력이 증가하여 효율이 저하되는 문제점이 있었다.In the conventional hermetic rotary compressor, the torque of the motor (torque) generates the force of the rotating shaft (crankshaft) and the stator and the rotor collide with each other to generate electronic sound, and the rigidity of the material of the rotating shaft to block the electronic sound. There was a problem that the workability is lowered to increase the, and when the length of the main upper bearing is increased, the pressure due to friction increases, thereby reducing the efficiency.

본 발명은 상기한 바와 같은 종래의 문제점 및 결함을 해소하기 위하여 창안한 것으로, 회전축의 내부에 강성이 강한 보강재를 삽입하여 압축기 운전 중 회전축의 휨량을 최소화함으로써 전자음을 줄이고, 이에 의해 연삭 가공이 들어가는 회전축의 재질을 완화시켜 가공성을 향상시키며, 메인 상부 베어링의 보스부와 회전축과의 접촉부 길이를 축소시켜 회전효율을 향상시킬 수 있게 되는 밀폐형 회전식 압축기의 회전축 강화장치를 제공하고자 함에 목적이 있다.The present invention was devised to solve the above problems and defects as described above, and by inserting a rigid rigid reinforcement inside the rotating shaft to minimize the amount of warp of the rotating shaft during compressor operation to reduce the electronic noise, thereby entering the grinding process It is an object of the present invention to provide a rotating shaft reinforcing device of a hermetic rotary compressor that can improve the workability by reducing the material of the rotating shaft and improving the workability and reducing the length of the contact portion between the boss portion of the main upper bearing and the rotating shaft.

위와 같은 목적을 달성하기 위하여 본 발명에 의한 밀폐형 회전식 압축기의 회전축 강화장치는 밀폐형 회전식 압축기의 회전축의 몸체 내부에 그 몸체보다 강성이 강한 재질의 보강재가 삽입되어 구성된다.In order to achieve the above object, the rotary shaft reinforcing device of the hermetic rotary compressor according to the present invention is configured by inserting a reinforcement material having a stronger rigidity than the body into the body of the rotary shaft of the hermetic rotary compressor.

상기 보강재에는 봉(bar)형 또는 파이프(pipe)형 보강재가 이용될 수 있다. The reinforcement may be a bar (bar) or pipe (pipe) reinforcement.                     

이하, 본 발명을 첨부한 도면에 실시예를 들어 상세히 설명하면 다음과 같다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail as follows.

도 3 내지 도 5는 본 발명에 의한 밀폐형 회전식 압축기의 회전축 강화장치에 관한 도면으로서, 도 3에는 본 발명에 의한 밀폐형 회전식 압축기의 종단면도가 도시되고, 도 4에는 회전축과 압축부를 보인 부분 종단면도가 도시되어 있으며, 도 5에는 회전축을 보인 부분 종단면도가 도시되어 있다.3 to 5 are views of the rotary shaft reinforcing device of the hermetic rotary compressor according to the present invention, Figure 3 is a longitudinal sectional view of the hermetic rotary compressor according to the present invention, Figure 4 is a partial longitudinal sectional view showing the rotating shaft and the compression unit. 5 is a partial longitudinal cross-sectional view showing the axis of rotation.

이에 도시한 바와 같이 본 발명에 의한 밀폐형 회전식 압축기는 밀폐형 회전식 압축기는 밀폐용기(1)의 내부에 전동기구부인 고정자(2) 및 회전자(3)가 설치되어 있고, 그 중 회전자(3)의 중심에는 회전축(4)이 열박음 등으로 결합되어 있으며, 그 회전축(4)의 하단부에는 압축기구부가 설치되어 있다.As shown therein, the hermetic rotary compressor according to the present invention is a hermetic rotary compressor in which a stator 2 and a rotor 3, which are electric motor parts, are installed inside the hermetic container 1, among which the rotor 3 is provided. At the center of the rotary shaft 4 is coupled by shrinkage, etc., the lower end of the rotary shaft 4 is provided with a compression mechanism.

상기 압축기구부는 회전축이 관통되는 환형의 상부 및 하부베어링(5,6)과, 그 상부 및 하부베어링(5,6)의 사이에 양측면이 밀착되어 외주면이 밀폐용기(1)에 고정되고 흡입구(미부호)가 형성되는 환형의 실린더(7)와, 그 실린더(7)내에서 편심회전하도록 상기 회전축(4)에 의해 자전하는 롤링피스톤(8)과, 그 롤링피스톤(8)의 외주면에 결합되어 롤링피스톤(8)의 선회운동시 직선운동을 하면서 실린더(5)를 흡입공간과 압축공간으로 구분하는 베인(미도시)을 포함하여 이루어져 있다.The compressor sphere has both sides of the annular upper and lower bearings 5 and 6 through which the rotating shaft penetrates and between the upper and lower bearings 5 and 6 so that the outer circumferential surface is fixed to the airtight container 1 and the suction port ( An annular cylinder (7) having an unsigned sign, a rolling piston (8) rotated by the rotating shaft (4) so as to eccentrically rotate within the cylinder (7), and an outer peripheral surface of the rolling piston (8). It is made to include a vane (not shown) for dividing the cylinder (5) into the suction space and the compression space while the linear movement during the pivoting movement of the rolling piston (8).

이와 같은 밀폐형 회전식 압축기에 있어서 상기 회전축(크랭크 샤프트)(4)는 도 4 및 도 5와 같이 몸체(4a)의 내부에 그 몸체(4a)보다 강성이 강한 재질의 보강재(10)가 삽입된 구성으로 되어 있다.In the hermetic rotary compressor, the rotating shaft (crankshaft) 4 has a structure in which a reinforcement 10 of a material having a stronger rigidity than that of the body 4a is inserted into the body 4a as shown in FIGS. 4 and 5. It is.

상기 보강재(10)에는 봉(bar)형 보강재 또는 파이프(pipe)형 보강재가 이용 된다.The reinforcement 10 is a bar (bar) reinforcement or pipe (pipe) reinforcement is used.

상기와 같이 구성된 본 발명에 의한 밀폐형 회전식 압축기는 다음과 같이 동작된다.The hermetic rotary compressor according to the present invention configured as described above operates as follows.

전동기구부에 전원이 공급되어 회전축(4)이 회전을 하게 되면, 냉매가스가 어큐뮬레이터(A)를 거쳐 실린더(7)의 내부로 유입되고, 그 유입된 냉매가스는 베인(미도시)이 상사점에 도달하였을 때에 흡입행정을 개시하여, 상기 회전축(4)과 함께 롤링피스톤(8)의 회전운동에 의해 점차 압축되고, 그 압축가스의 압력이 어느 시점에 도달하였을 때 압축된 냉매가스는 밀폐용기(1)의 내부를 지나 토출보강재(D)를 통해 냉동사이클장치로 토출된다.When power is supplied to the electric motor unit and the rotating shaft 4 rotates, the refrigerant gas flows into the cylinder 7 through the accumulator A, and the introduced refrigerant gas has vanes (not shown). When it reaches, the suction stroke is started, and it is gradually compressed by the rotational movement of the rolling piston 8 together with the rotating shaft 4, and when the pressure of the compressed gas reaches a certain point, the compressed refrigerant gas is sealed. It is discharged to the refrigeration cycle apparatus through the discharge reinforcing material (D) passing through the interior of (1).

이와 같은 압축 과정에서 상기 회전축(4)에는 본 발명에 의해 몸체(4a)의 내부에 강성이 강한 보강재(10)가 삽입되어 있으므로 압축기 운전 중 회전축(4)의 휨량이 최소화되고, 이에 따라 고정자(2)와 회전자(3)가 서로 충돌하여 일으키는 전자음이 차단된다.In this compression process, since the rigid shaft 4 is inserted into the rotary shaft 4 in the body 4a by the present invention, the amount of warpage of the rotary shaft 4 is minimized during the operation of the compressor. 2) and the rotor 3 collide with each other, the electronic noise caused by the collision is blocked.

그리고 이에 의해 연삭 가공으로 형성되는 회전축(4)을 보다 연성의 재질로 사용할 수 있게 되어 가공성을 향상시킬 수 있으며, 메인 상부 베어링(5)의 보스부와 회전축(4)과의 접촉부 길이를 축소시켜 회전효율을 향상시킬 수 있게 된다.As a result, the rotating shaft 4 formed by the grinding process can be used as a softer material, thereby improving workability, and reducing the length of the contact portion between the boss of the main upper bearing 5 and the rotating shaft 4. It is possible to improve the rotation efficiency.

이상에서 설명한 바와 같은 본 발명은 회전축의 내부에 강성이 강한 보강재를 삽입하여 압축기 운전 중 회전축의 휨량을 최소화함으로써 전자음을 줄이고, 이에 의해 연삭 가공이 들어가는 회전축의 재질을 완화시켜 가공성을 향상시키며, 메 인 상부 베어링의 보스부와 회전축과의 접촉부 길이를 축소시켜 회전효율을 향상시키는 이점이 있다.As described above, the present invention reduces the electronic sound by inserting a rigid reinforcement inside the rotating shaft to minimize the amount of warpage of the rotating shaft during compressor operation, thereby relieving the material of the rotating shaft into which the grinding process enters, thereby improving workability. There is an advantage of improving the rotational efficiency by reducing the length of the contact portion between the boss portion and the rotating shaft of the upper bearing.

Claims (3)

밀폐형 회전식 압축기의 회전축(4)의 몸체(4a) 내부에 그 몸체(4a)보다 강성이 강한 재질로 형성되고 일정 길이를 갖는 보강재(10)가 삽입되어 구성된 것을 특징으로하는 밀폐형 회전식 압축기의 회전축 강화장치.Reinforcing the rotating shaft of the hermetic rotary compressor, characterized in that formed in the body 4a of the rotary shaft 4 of the hermetic rotary compressor is formed of a material stronger than the body 4a and a reinforcement 10 having a predetermined length is inserted. Device. 제 1 항에 있어서, 상기 보강재(10)는 봉형 보강재인 것을 특징으로 하는 밀폐형 회전식 압축기의 회전축 강화장치.The apparatus of claim 1, wherein the reinforcing member is a rod-shaped reinforcing member. 제 1 항에 있어서, 상기 보강재(10)는 파이프형 보강재인 것을 특징으로 하는 밀폐형 회전식 압축기의 회전축 강화장치.The apparatus of claim 1, wherein the reinforcing member (10) is a pipe-type reinforcing member.
KR1020040088323A 2004-11-02 2004-11-02 Apparatus strengthening shaft for hermetic rotary compressor KR20060039226A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114526211A (en) * 2022-03-01 2022-05-24 广东美芝制冷设备有限公司 Compressor and compression system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114526211A (en) * 2022-03-01 2022-05-24 广东美芝制冷设备有限公司 Compressor and compression system

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