CN1278043C - Enclosed compressor - Google Patents

Enclosed compressor Download PDF

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Publication number
CN1278043C
CN1278043C CNB031423426A CN03142342A CN1278043C CN 1278043 C CN1278043 C CN 1278043C CN B031423426 A CNB031423426 A CN B031423426A CN 03142342 A CN03142342 A CN 03142342A CN 1278043 C CN1278043 C CN 1278043C
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CN
China
Prior art keywords
cylinder
resonator
attachment hole
hermetic compressor
refrigeration agent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB031423426A
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Chinese (zh)
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CN1499082A (en
Inventor
黄善雄
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LG Electronics Inc
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LG Electronics Inc
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Filing date
Publication date
Application filed by LG Electronics Inc filed Critical LG Electronics Inc
Publication of CN1499082A publication Critical patent/CN1499082A/en
Application granted granted Critical
Publication of CN1278043C publication Critical patent/CN1278043C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • F04C29/06—Silencing
    • F04C29/065—Noise dampening volumes, e.g. muffler chambers
    • 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
    • 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
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/06—Silencing
    • F04C29/068—Silencing the silencing means being arranged inside the pump housing

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

Abstract

A hermetic rotary compressor having a resonator is provided to reduce noise and vibration due to pressure pulsation in compressing refrigerant by losing a part of sound wave energy. A resonator(27) is formed in association with a thickness direction from a top surface of a cylinder(22), adjacent to a vane receiving part(25) and a discharge port(24). A first communicating part(29) is formed at a contact area between an upper bearing member and the cylinder to communicate the discharge port with the resonator. A second communicating part(30) is formed at the contact area between the upper bearing member and the cylinder to communicate the resonator with the vane receiving part.

Description

Hermetic compressor
Technical field
The present invention relates to a kind of hermetic compressor, more particularly, relate to the pressure pulsation in a kind of because compressed refrigeration agent discharge process, can effectively reduce the hermetic compressor of noise.
Background technique
Generally speaking, have the compressor of refrigerating circulatory device, come the refrigerant gas of the low-pressure state of from evaporator drier, and it is discharged with high-temperature high-pressure state in order to compression.
In hermetic compressor,, mainly adopt rotary compressor and reciprocal compressor according to compression type.
Specifically, have the refrigerating circulatory device of electronic equipment, for example in the air conditioner, closed rotating compressor is used for compressed refrigerant, and Fig. 1 is a sectional view, and a kind of closed rotating compressor is shown, and brief description is as follows:
As shown in Figure 1, traditional closed rotating compressor comprises a housing 110, and it has an inner sealing space; One is arranged on the compression member 130 in this housing 110, in order to compressed refrigerant; With an electric motor 150, in order to provide driving force to compression member 130.
One side of housing 110 is equipped with a suction pipe, is used to suck refrigeration agent.The top of housing 110 is equipped with an outlet pipe 170, in order to discharge compressed refrigeration agent.
Electric motor device 150 comprises that one is fixedly installed on the stator 151 in housing 110 inner upper zones; One can be rotatably set in the rotor 152 in this stator 151; With a rotating shaft 155, the one side has an eccentric part 153, and rotatably with rotor 152 the axle be combined into one.
Compression member 130 comprises a cylinder 132, and it is fixedly installed on the inner lower zone of housing 110, and has a refrigeration agent compression chamber S, is positioned at the refrigeration agent of inside center in order to compression; One roller 131 is combined into one with the eccentric part 153 of rotating shaft 155, in cylinder 132, carrying out eccentric motion, thereby in rotary course compressed refrigerant; One upper bearing (metal) spare 133 is used for supporting rotationally this rotating shaft 155, thereby blocking is along the upper area of rotating shaft 155 axially extended cylinders 132; Once bearing member 135, are used for supporting rotationally this rotating shaft 155, thereby interdict the lower area of this cylinder 132.
Fig. 2 is the sectional elevation of traditional compressor shown in Figure 1, and Fig. 3 is along the amplification longitudinal section of III-III hatching among Fig. 2, and this traditional compressor is shown.Shown in Fig. 2 and 3, an inlet hole 121 is formed in a side of cylinder 132, refrigeration agent is sucked refrigeration agent compression chamber S; With a relief opening 125, be formed in the side of cylinder 132, so that, discharge compressed refrigeration agent upwards with outward-dipping.One blade receiver portion 123 is formed between inlet hole 121 and the relief opening 125, holding a blade 122, and the outer surface Elastic Contact of this blade and rotor 131, and along radially the stretching/contract of cylinder 132, thereby the inner space is separated.One exhaust passage 124 is formed on the upper bearing (metal) spare 133, with harmonious with relief opening 125, discharges compressed refrigeration agent.
Simultaneously, the radially adjacent row gas port 125 along cylinder 132 also is formed with a resonator 127, utilizes the resonance effect in the refrigerant compressed discharging, reduces noise.
Resonator 127 has the cylindrical shape (cylinder 132 has covered the top of resonator 127) of an open-top, and the side at resonator 127 also is formed with a connection channel 126, the top of its depression inlet casing 132 is " U " shape, to connect relief opening 125 resonator 127.
This connecting passage 126 compares with resonator 127, has less circulation area, so that produce expansion from the refrigeration agent of relief opening 125 in resonator 127, is to reduce the acoustic wave segment energy.
As shown in Figure 4, traditional closed rotating compressor has above-mentioned resonator, and the noise of certain frequency band can be reduced, but at other frequency band, 1.25KHz for example, and 3KHz and 4KHz just can not fully reduce noise, have therefore limited the reduction of noise.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this invention is to provide a kind of hermetic compressor, it has a resonator, and the pressure pulsation during owing to the discharging of the refrigeration agent after the compression can fully reduce noise.
For achieving the above object, a kind of hermetic compressor that provides comprises a cylinder, and it has a refrigeration agent compression chamber S; One shaft bearing plate, it is combined closely at cylinder surface, and has an exhaust passage, in order to be emitted on refrigerant compressed in the compression chamber; With a main resonator, it is formed in cylinder one side, when discharging by a relief opening that connects this exhaust passage with the gas after compression, reduce the noise of certain frequency band, according to hermetic compressor of the present invention, also comprise a secondary resonator, it is formed on the cylinder, to reduce the noise of other frequency band, this frequency band is different from the frequency band that main resonator reduces.
Description of drawings
For further understanding the present invention, as each accompanying drawing of this specification part, for example understand several embodiments of the present invention, they are used to explain principle of the present invention with this specification.
In each accompanying drawing:
Fig. 1 is a longitudinal section, and traditional closed rotating compressor is shown;
Fig. 2 is the sectional elevation of traditional compressor shown in Figure 1;
Fig. 3 is along the amplification longitudinal section of III-III hatching among Fig. 2, and traditional compressor is shown;
Fig. 4 is a chart, and reducing of noise under the certain frequency is shown in the traditional compressor;
Fig. 5 is a sectional elevation, and a hermetic compressor cylinder is shown, and it comprises a resonator according to the embodiment of the invention;
Fig. 6 is the amplification sectional elevation along VI-VI hatching among Fig. 5;
Fig. 7 is the amplification sectional elevation along VII-VII hatching among Fig. 5;
Fig. 8 is a sectional elevation, and the compression member of a hermetic compressor is shown, and it has a resonator according to another embodiment of the present invention;
Fig. 9 is the amplification sectional elevation along IX-IX hatching among Fig. 8; With
Figure 10 is a chart, and the noise that illustrates according to hermetic compressor of the present invention lowers efficiency.
Embodiment
Below in conjunction with each accompanying drawing, describe in detail according to hermetic compressor of the present invention.
Fig. 5 is a sectional elevation, and a hermetic compressor cylinder is shown, and it comprises a resonator according to the embodiment of the invention; Fig. 6 is the amplification sectional elevation along VI-VI hatching among Fig. 5; Fig. 7 is the amplification sectional elevation along VII-VII hatching among Fig. 5.
Shown in Fig. 5～7, comprise according to hermetic compressor of the present invention: a cylinder 22, it has the refrigeration agent compression chamber S of a compressed refrigerant, a relief opening 24 and a blade receiver portion 25; One upper bearing (metal) spare 33, its combined upper area with blocking cylinder 22, support a running shaft 47 rotationally, closely be fixed on a side of cylinder 22, and has an exhaust passage 34, in order to refrigerant compressed among the discharging compression chamber S and bearing member 35 once, its combined lower area with blocking cylinder 22; One main resonator 27, it is formed in a side of blades adjacent receiver portion 25 and relief opening 24; One first attachment hole 29 interconnects relief opening 24 and main resonator 27; With one second attachment hole 30, main resonator 27 and blade receiver portion 25 are interconnected.
Refrigeration agent compression chamber S is formed on the center region of cylinder 22, to hold a roller 31, compressed refrigerant when roller rotates.One inlet hole 23 is formed in the side of refrigeration agent compression chamber S, in order to suck refrigeration agent.Relief opening 24 is formed in refrigeration agent compression chamber S upper lateral part, so that outwards and be inclined upwardly, in order to the refrigeration agent after the discharging compression.25 of blade receiver portions radially are formed between inlet hole 23 and the relief opening 24, to hold a blade 26.
Simultaneously, first attachment hole 29 is formed in a side of relief opening 24, by being recessed in cylinder 22 end faces, and extends radially outwardly along cylinder 22, so that the refrigeration agent of partial discharge flows into main resonator 27, therefore, first attachment hole 29 has the shape of intimate " U " shape.Second attachment hole 30 is formed in a side of first attachment hole 29, by being recessed in cylinder 22 end faces, so that blade receiver portion 25 and main resonator 27 are interconnected, therefore is " U " shape.
In more detail, main resonator 27 and relief opening 24 are interconnected by first attachment hole 29, and main resonator 27 and secondary resonator are interconnected by second attachment hole 30.
Wherein, second attachment hole 30 can be formed at least one face of surface of contact of cylinder 22 and upper bearing (metal) spare 33, and in other words, second attachment hole can be formed on the surface of contact of shaft bearing plate 33 and cylinder 22, perhaps on the surface of contact of shaft bearing plate 33, perhaps on the surface of contact of cylinder 22.
Specifically, in Fig. 6 and 7, second attachment hole 30 is to be formed on the cylinder.
In a word, the refrigeration agent circulation area that first and second attachment holes 29,30 are shaped should be less than the refrigeration agent circulation area of main resonator 27 and blade receiver portion 25.
Main resonator 27 is set, in order that, reduce the noise of certain frequency band by blade receiver portion 25 and main resonator 27 being interconnected with second attachment hole 30; And blade receiver portion 25 can reduce the noise of another frequency band that main resonator 27 can not reduce.
Fig. 8 is a sectional elevation, and the compression member of a hermetic compressor is shown, and has a resonator according to another embodiment of the present invention; And Fig. 9 is the amplification sectional elevation along IX-IX hatching among Fig. 8.
Shown in Fig. 8 and 9, be formed with first attachment hole 29 that caves inward from inlet casing 22 end faces, and be formed with second attachment hole 30 that upwards caves in from upper bearing (metal) spare 33 bottom surfaces.
In the above-mentioned hermetic compressor, second attachment hole 30 is connected to the center of blade receiver portion 25 from the radius of main resonator 27, therefore, correspondingly can reduce noise.
In the foregoing description, first and second attachment holes are formed separately on cylinder or upper bearing (metal) spare one; Yet it also is feasible being formed in them on each surface of contact of cylinder and upper bearing (metal) spare.
Below, the work of hermetic compressor of the present invention is described:
Work as power connection, rotating shaft 47 is rotated, and roller 31 is along the cylinder bore diameter rotation, and refrigeration agent sucks refrigeration agent compression chamber S by inlet hole 23.The refrigeration agent that sucks is compressed at rotor 31 and 26 in blade, by relief opening 24 discharging refrigerant compression chamber S.Part refrigerant compressed wherein flows into main resonator 27 by first attachment hole 2929, and the refrigeration agent by first attachment hole 29 expands in main resonator 27, and wherein the acoustic wave segment energy is consumed.Part refrigeration agent in the main resonator 27 expands in blade receiver portion 25 by behind second attachment hole 30, and wherein the acoustic wave segment energy is consumed.And the part refrigerant compressed is by second attachment hole 30 and relief opening 24, flow into first attachment hole 29, take place to impact mutually and reflecting action with the refrigeration agent that flows into second attachment hole 30 by main resonator 27, the acoustic wave segment energy is consumed, so acoustic wave energy is always said so and reduced.
Wherein, except that the certain frequency band reduces the main resonator 27 of noise, blade receiver portion 25 plays the effect that reduces the secondary resonator of noise at other frequency band.
Figure 10 is a chart, and the noise that hermetic compressor of the present invention is shown lowers efficiency.Shown in noise lower efficiency, be by connecting with second attachment hole 30 and main resonator 27 with as the blade receiver portion 25 of secondary resonator, drawing through test.
Fig. 4 gives a comparison chart that only is provided with main resonator 27, shows at some frequency band, and 1.25KHz for example, 3.15KHz and 4KHz exist noise to lower efficiency really.
As mentioned above, hermetic compressor of the present invention is provided with main resonator by the place at blades adjacent receiver portion and relief opening, and it is recessed in the cylinder end face; First attachment hole that connects main resonator and relief opening is set; Second attachment hole that connects main resonator and blade receiver portion is set, because refrigeration agent compressed while in rotor rotation process takes place to impact and reflection each other, the acoustic wave segment energy is consumed, and because of in the refrigeration agent compression process pressure pulsation taking place, noise and vibration are lowered.
In addition, the refrigeration agent circulation area of first and second attachment holes by making shaping is less than the refrigeration agent circulation area of main resonator and blade receiver portion, refrigeration agent is in compression-flow process, and compression and expansion are carried out repeatedly, and correspondingly noise is more effectively reduced.

Claims (5)

1, a kind of hermetic compressor comprises a cylinder, and it has a refrigeration agent compression chamber, and a shaft bearing plate is combined closely at cylinder surface, and has an exhaust passage, in order to be emitted on refrigerant compressed in the compression chamber; With a main resonator, be formed in cylinder one side, when discharging by a relief opening that connects this exhaust passage with the gas after the box lunch compression, reduce the noise of certain frequency band, it is characterized in that: also comprise a secondary resonator, it is formed on the cylinder, to reduce the noise of other frequency band, this frequency band is different from the frequency band that main resonator reduces, wherein, described secondary resonator is a blade receiver portion, and it holds a blade, in order to separate described compression chamber, so that can carry out linear reciprocating motion.
2, hermetic compressor as claimed in claim 1 is characterized in that: described main resonator and relief opening are interconnected by first attachment hole, and main resonator and secondary resonator are interconnected by second attachment hole.
3, hermetic compressor as claimed in claim 2 is characterized in that: described second attachment hole is formed on the surface of contact of shaft bearing plate and cylinder.
4, hermetic compressor as claimed in claim 3 is characterized in that: described second attachment hole is formed on the shaft bearing plate.
5, hermetic compressor as claimed in claim 3 is characterized in that: described second attachment hole is formed on the cylinder.
CNB031423426A 2002-11-06 2003-06-13 Enclosed compressor Expired - Fee Related CN1278043C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR68548/2002 2002-11-06
KR68548/02 2002-11-06
KR10-2002-0068548A KR100480126B1 (en) 2002-11-06 2002-11-06 Hermetic rotary compressor with resonator

Publications (2)

Publication Number Publication Date
CN1499082A CN1499082A (en) 2004-05-26
CN1278043C true CN1278043C (en) 2006-10-04

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CNB031423426A Expired - Fee Related CN1278043C (en) 2002-11-06 2003-06-13 Enclosed compressor

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CN (1) CN1278043C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107654376A (en) * 2016-07-25 2018-02-02 清华大学 A kind of single cylinder compressor with rolling rotor and supplementing method for air with second vapor injection structure

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102100681B1 (en) * 2013-10-04 2020-04-14 엘지전자 주식회사 A rotary compressor
CN103883533B (en) * 2014-03-14 2017-06-16 安徽美芝精密制造有限公司 Double-stage compressor
CN104179687A (en) * 2014-07-30 2014-12-03 珠海格力电器股份有限公司 Rotary compressor silencing structure and rotary compressor with same
JP6635095B2 (en) * 2017-07-19 2020-01-22 ダイキン工業株式会社 Rotary compressor
CN111065824B (en) * 2018-08-16 2022-07-26 Lg电子株式会社 Rotary compressor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6155191U (en) * 1984-09-14 1986-04-14
JPS62121889A (en) * 1985-11-22 1987-06-03 Mitsubishi Electric Corp Rotary compressor
KR100286309B1 (en) * 1998-05-15 2001-05-02 구자홍 Discharge Noise Reduction Device for Hermetic Rotary Compressor
KR100286836B1 (en) * 1998-07-15 2001-05-02 구자홍 Resonator of a rotary compressor
KR20010064535A (en) * 1999-12-29 2001-07-09 구자홍 Discharge noise reduction structure for sealed type rotary compressor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107654376A (en) * 2016-07-25 2018-02-02 清华大学 A kind of single cylinder compressor with rolling rotor and supplementing method for air with second vapor injection structure

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Publication number Publication date
KR100480126B1 (en) 2005-04-06
CN1499082A (en) 2004-05-26
KR20040040201A (en) 2004-05-12

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Granted publication date: 20061004