CN100383399C - Shading device for lowering noise in closed type revolving compressor - Google Patents
Shading device for lowering noise in closed type revolving compressor Download PDFInfo
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- CN100383399C CN100383399C CNB2003101074409A CN200310107440A CN100383399C CN 100383399 C CN100383399 C CN 100383399C CN B2003101074409 A CNB2003101074409 A CN B2003101074409A CN 200310107440 A CN200310107440 A CN 200310107440A CN 100383399 C CN100383399 C CN 100383399C
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- shielding portion
- pressed
- portion material
- cylinder
- stator
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Abstract
The present invention discloses a shading device for lowering noise in a closed rotary compressor, which comprises a motor stator, a rotatable motor rotor, a rotating shaft and a cylinder body combination, wherein the motor stator is pressed in an inner circumferential surface of a cylinder, the rotatable motor rotor is inserted in the stator, the cylinder body combination is used for sucking, compressing and exhausting dielectric gas via transferred rotary force, and the upper side and the lower side of the stator are provided with hollow cylindrical cylinder bodies; the upper and the lower end of each of the cylinder bodies are hermetically connected with the structures of an upper cover, a lower cover, etc. Each cylinder body is provided with double walls or a cylindrical silencer is fixedly pressed in the inner circumferential surface of each cylinder body to form shading space for shielding noise. Thus, the shading device can prevent high-frequency noise generated in a sealed shell body from spreading outside in order to enhance the reliability of products.
Description
Affiliated field
The invention belongs to a kind of masking structure that reduces the hermetic rotary compressor noise, be specifically related to a kind of shutter that can reduce to the reduction hermetic rotary compressor noise of external communication noise.
Background technique
As shown in Figure 1, 2, in the hermetic rotary compressor of prior art (1), seal casinghousing (10) upper inside is equipped with motor (20), the downside of motor (20) compressor assembly (30) that is equipped with separated by a distance.Seal casinghousing (10) is made up of cylindrical drum (11), loam cake (12) and the lower cover (13) etc. of hollow.Motor (20) is pressed on the inner peripheral surface that is fixed on cylindrical shell (11), and it is made up of stator (21), rotor (22) and running shaft (23) of being pressed into the center that is fixed on rotor (22) and transmitting rotating force etc.Compressor assembly (30) is by cylinder (31), upper bearing (32) and lower bearing (33), at the inner eccentric part (23a) that forms running shaft (23) of the compression volume (C) of cylinder (31), be positioned at the outside of eccentric part (23a), being provided with can rotation and the rolling piston (35) of revolution by eccentric part (23a), one side contacts with the excircle upper thread of rolling piston (35), and is the impeller structures such as (not shown) of suction area and compressing area with compression volume (C) zoning that the outer peripheral surface of the inner peripheral surface of cylinder (31) and rolling piston (35) forms.The suction port (not shown) that also is communicated with the suction pipe in the suction area in the cylinder (31), and the exhaust port (not shown) that is used to discharge compressed media in the compressing area.In addition, be provided with exhaust port (not shown) in the upper bearing (32), its upside binding is fixed with baffler (34), is used to reduce the noise that is produced by pressure difference from the compressed media gas of exhaust port discharge.For making dielectric gas be discharged to seal casinghousing (10) outside, on the loam cake (12) of seal casinghousing (10), be provided with discharge tube (50) by baffler (34).According to above structure, in hermetic rotary compressor, connect the power supply of motor (20), produce magnetic field between stator (21) and the rotor (22) and make rotor (22) begin rotation, and by being pressed into running shaft (23) transmission of drive force that is fixed in rotor (22) central part, thereby the rolling piston (35) of eccentric part (23a) interlock that forms with running shaft (23) bottom, with the impeller state of contact under, be to revolve round the sun in the axle center with compression volume (C) inside of cylinder (31).Revolution by rolling piston (35), the volume of the compression volume (C) that the outer peripheral surface of the inner peripheral surface of cylinder (31) and rolling piston (35) forms will change, make the dielectric gas of low pressure suck, and be compressed into high pressure conditions and discharge by exhaust port by suction port.Dielectric gas is discharged to baffler (34) inside by being communicated in exhaust port, behind baffler (34) reduction noise, passes through between stator (21) and the rotor (22), and is discharged by the discharge tube (50) on the top that runs through seal casinghousing (10).
But, in the dielectric gas by baffler (34) discharge, can only reduce the part of the noise that pressure difference produces, the bottom in the seal casinghousing that cylinder (31) are housed (10), the high-frequency noise isolation effect that produces in the process of compressed media gas is not good enough.Therefore, high-frequency noise runs through seal casinghousing (10) and is delivered to the outside, thereby reduces reliability of products.
Summary of the invention
In order to address the above problem, the invention discloses a kind of shutter that reduces the hermetic rotary compressor noise, it is included in motor stator that is pressed on the cylindrical shell inner peripheral surface and rotatable rotor and the running shaft that inserts in stator interior, by the rotating force that transmits can suck, the compressed media gas cylinder in-block of discharge also, be provided with the hollow circle tube cylindrical shell at the upside and the downside of stator; Upper and lower end sealing at cylindrical shell is linking structures such as loam cake and lower cover.Cylindrical shell is arranged to double wall, perhaps is pressed on the inner peripheral surface of cylindrical shell and is fixed with columnar shielding portion material, is used to form the shed space of shielding noise.The shielding portion material is pressed into and forms the 1st shielding portion material on the cylindrical shell inner peripheral surface that is fixed between stator and the cylinder; The shielding portion material is pressed into and forms the 2nd shielding portion material on the cylindrical shell inner peripheral surface that is fixed between stator and the loam cake; The shielding portion material is pressed into and forms the 3rd shielding portion material on the cylindrical shell inner peripheral surface that is fixed between cylinder and the lower cover.Shielding portion material and cylindrical shell form the columnar shielding portion with certain shed space, and the two ends of above-mentioned shielding portion are crooked laterally and be pressed into and be fixed on the cylindrical shell inner peripheral surface.
Description of drawings
Fig. 1 is the longitudinal sectional drawing of hermetic rotary compressor of the prior art;
Fig. 2 is the part-structure amplification profile of Fig. 1;
Fig. 3 is the longitudinal sectional drawing of the 1st embodiment among the present invention;
Fig. 4 is the longitudinal sectional drawing of the 2nd embodiment among the present invention;
Fig. 5 is the part amplification profile of the 1st shielding portion connecting state among Fig. 4;
Fig. 6 is the B part amplification profile among Fig. 5;
Fig. 7 is the cut-away section schematic representation of the 1st shielding portion material among Fig. 4;
Fig. 8 is the part amplification profile of the 2nd shielding portion material connecting state among Fig. 4;
Fig. 9 is the part amplification profile of the 3rd shielding portion material connecting state among Fig. 4.
Wherein:
1 compressor, 10 seal casinghousings, 11 cylindrical shells
12 loam cakes, 13 lower covers, 20 motors
23 of 21 stators, 22 rotors
23a eccentric part 30 compressor assemblies 31 cylinders
32 upper bearings, 33 lower bearings, 34 bafflers
35 pistons, 40 suction pipes, 50 discharge tubes
100 seal casinghousings, 110 cylindrical shells, 111 outer walls
112 inwalls, 113 shed spaces, 120 loam cakes
130 lower covers, 200 seal casinghousings, 210 cylindrical shells
220 loam cakes, 230 lower covers, 240 shielding portion materials
241 the 1st shielding portion material 241a shielding portions
243 the 3rd shielding portions
Embodiment
Followingly be elaborated: as shown in Figure 3 with reference to the shutter of accompanying drawing to reduction hermetic rotary compressor noise of the present invention, the noise reduction structure of the hermetic rotary compressor among the 1st embodiment of the present invention, it is included in motor (20) and compressor assembly (30) is installed in the compressor (1).Motor (20) by be installed in seal casinghousing (100) upper inside stator (21) and rotor (22) and the running shaft (23) that is pressed into the center of being fixed in rotor (22) and transmits rotating force etc. form.Compressor assembly (30) is by the downside of motor (20) cylinder (31) separated by a distance and fixing and be installed in the upper and lower part of cylinder (31), when cylinder interior formed compression volume (C), its running shaft (23) ran through the inside of cylinder (31) and the upper bearing (32) and the lower bearing (33) of rotatable support; Seal casinghousing (100) is formed by the cylindrical drum (110) of hollow with the loam cake (120) of the upper and lower end opening perimeter solder joint of cylindrical shell (110) and lower cover (130) etc.To be linked to the inner noise that produces in a series of processes of medium, compression and discharge that sucks of the inner cylinder (31) of cylindrical shell (110) in order covering, to be provided with inwall (112) in the cylindrical shell (110) and to form certain shed space (113) to form dual containment wall with outer wall (111).Simultaneously, on loam cake (120) and lower cover (130), also be provided with and the same inner and outer wall of cylindrical shell (110), form dual containment wall.So, on whole seal casinghousing (100), constituted outer wall and inwall and formed the dual containment wall of certain shed space.For preventing the propagation of noise, the inside of shed space (113) forms the confined air gas-bearing formation, perhaps is provided with porous material in order to absorb noise.At seal casinghousing (100) gone up returning apparatus suction pipe (40), discharge tube (50), at the inner returning apparatus of seal casinghousing (100) baffler (34).Structure according to above-described the 1st embodiment, in the hermetic rotary compressor of the present invention, connect the power supply of motor (20), produce magnetic field between stator (21) and the rotor (22) and rotor (22) begins rotation, and by being pressed into running shaft (23) transmission of drive force that is fixed in rotor (22) central part, thereby the rolling piston (35) of eccentric part (23a) interlock that bottom running shaft (23), forms, with the impeller state of contact under, be to revolve round the sun in the axle center with compression volume (C) inside of cylinder (31).Revolution by rolling piston (35), the volume of the compression volume (C) that the outer peripheral surface of the inner peripheral surface of cylinder (31) and rolling piston (35) forms will change, and be compressed into high pressure conditions after making the dielectric gas of low pressure be drawn into the suction area of cylinder (31) by suction port (not shown).The dielectric gas of compression is along with the start of open and close valve door assembly, be discharged between upper bearing (32) and the baffler (34) from exhaust port, behind baffler (34) reduction noise, between stator (21) and rotor (22), and by running through discharge tube (50) discharge on seal casinghousing (100) top.The noise that is produced in above-mentioned a series of dielectric gas compression process will be by the outer wall (111) and the inwall (112) of the cylindrical shell (110) of seal casinghousing (100), and the shielding layer that forms between outer wall (111) and the inwall (112) prevents that it from propagating into the outside.
As Fig. 4--shown in 9, the noise reduction structure of the hermetic rotary compressor among the 2nd embodiment of the present invention, it is included in respectively to be pressed on cylindrical shell (210) inner peripheral surface of seal casinghousing (200) and is fixed with columnar shielding portion material (240), and forms the shed space of shielding noise.Above-mentioned shielding portion material (240) is pressed into and forms the 1st shielding portion material (241) on cylindrical shell (210) inner peripheral surface that is fixed between stator (21) and the cylinder (31); Above-mentioned shielding portion material (240) is pressed into and forms the 2nd shielding portion material (242) on cylindrical shell (210) inner peripheral surface that is fixed between stator (21) and loam cake (220) connecting part, and above-mentioned shielding portion material (240) is pressed into and forms the 3rd shielding portion material (243) on cylindrical shell (210) inner peripheral surface that is fixed between cylinder (31) and lower cover (230) connecting part.The 1st shielding portion material (241) is set up in by being separated by on cylindrical shell (210) inner peripheral surface, form the columnar shielding portion (241a) of shed space therebetween, and the upper and lower side end of shielding portion (241a) is crooked laterally and be pressed into cylindrical shell (210) inner peripheral surface and seal and form fixing part (241b).In addition, the structure of the 2nd shielding portion material (242) and the 3rd shielding portion material (243) is equal to the 1st shielding portion material (241), Therefore, omited specific description.
Structure according to above-described the 2nd embodiment, the cylinder in-block of compressed media gas is arranged in the lower area, and its inner high frequency noise that produces the 4kHz frequency will be by shed space and the weakening that is formed on cylindrical shell (210) inner peripheral surface of seal casinghousing (200) by the 1st shielding portion material (241) and the 2nd shielding portion material (242).In addition, the 3rd shielding portion material (243) can cover the noise that the pressure reduction by dielectric gas causes.And, regulate each shielding portion material (240) thickness, length and with the interval of cylindrical shell (210) inner peripheral surface of seal casinghousing (200), to reach the best effect of covering noise.
Claims (5)
1. shutter that reduces the hermetic rotary compressor noise, it is included in motor stator that is pressed on the cylindrical shell inner peripheral surface and rotatable rotor and the running shaft that inserts in motor stator inside, by the rotating force that transmits suck, compressed media gas and cylinder in-block that gas is discharged, be provided with the hollow circle tube cylindrical shell at the upside and the downside of stator; Upper and lower end sealing at cylindrical shell is linking loam cake and lower cover, it is characterized in that: be pressed on the inner peripheral surface of cylindrical shell and be fixed with columnar shielding portion material, be used to form the shed space of shielding noise.
2. a kind of shutter that reduces the hermetic rotary compressor noise according to claim 1 is characterized in that: above-mentioned shielding portion material is pressed into and is fixed between stator and the cylinder and forms the 1st shielding portion material.
3. a kind of shutter that reduces the hermetic rotary compressor noise according to claim 1 is characterized in that: above-mentioned shielding portion material is pressed into and is fixed between stator and the loam cake and forms the 2nd shielding portion material.
4. a kind of shutter that reduces the hermetic rotary compressor noise according to claim 1 is characterized in that: above-mentioned shielding portion material is pressed into and is fixed between cylinder and the lower cover and forms the 3rd shielding portion material.
5. according to the shutter of the described any reduction hermetic rotary compressor noise of claim 1 to 4, it is characterized in that: above-mentioned shielding portion material is by shielding portion and the two ends of shielding portion are crooked laterally and be pressed into the fixing part that is fixed on the cylindrical shell inner peripheral surface and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101074409A CN100383399C (en) | 2003-12-12 | 2003-12-12 | Shading device for lowering noise in closed type revolving compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2003101074409A CN100383399C (en) | 2003-12-12 | 2003-12-12 | Shading device for lowering noise in closed type revolving compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1626822A CN1626822A (en) | 2005-06-15 |
| CN100383399C true CN100383399C (en) | 2008-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2003101074409A Expired - Fee Related CN100383399C (en) | 2003-12-12 | 2003-12-12 | Shading device for lowering noise in closed type revolving compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100383399C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5915384B2 (en) | 2012-05-30 | 2016-05-11 | 株式会社豊田自動織機 | Electric compressor |
| CN103883528A (en) * | 2012-12-20 | 2014-06-25 | 上海日立电器有限公司 | Full-closed compressor double-layer housing structure |
| KR102206177B1 (en) | 2014-07-01 | 2021-01-22 | 엘지전자 주식회사 | Compressor and assembly method thereof |
| CN104500404A (en) * | 2014-12-16 | 2015-04-08 | 广东美芝制冷设备有限公司 | Compressor |
| EP3354902B1 (en) * | 2015-09-24 | 2024-05-01 | Guangdong Meizhi Compressor Co., Ltd. | Rotary compressor |
| CN105332918A (en) * | 2015-11-20 | 2016-02-17 | 珠海格力电器股份有限公司 | Compressor and heat exchanging system |
| CN106678044B (en) * | 2017-01-17 | 2019-03-05 | 西安庆安制冷设备股份有限公司 | A kind of Totally-enclosed-type rotor-type compressor |
| CN107246393A (en) * | 2017-07-31 | 2017-10-13 | 广东美芝制冷设备有限公司 | Connecting pipe component and compressor for compressor |
| CN107461338B (en) * | 2017-08-30 | 2020-03-06 | 广东美芝制冷设备有限公司 | Compressor with a compressor housing having a plurality of compressor blades |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0264289A (en) * | 1988-08-29 | 1990-03-05 | Matsushita Refrig Co Ltd | Horizontal rotary compressor with floating mechanism |
| JPH0364676A (en) * | 1989-08-02 | 1991-03-20 | Toshiba Corp | Rotary compressor |
| JPH03271594A (en) * | 1990-03-20 | 1991-12-03 | Matsushita Refrig Co Ltd | Rotary compressor |
| JPH0466795A (en) * | 1990-07-09 | 1992-03-03 | Matsushita Refrig Co Ltd | Rotary compressor |
| CN1177680A (en) * | 1996-07-08 | 1998-04-01 | 株式会社丰田自动织机制作所 | Silencer mechanism for compressor |
| CN1363777A (en) * | 2001-12-14 | 2002-08-14 | 乐金电子(天津)电器有限公司 | Silencer of exhaust valve for sealed rotary compressor |
-
2003
- 2003-12-12 CN CNB2003101074409A patent/CN100383399C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0264289A (en) * | 1988-08-29 | 1990-03-05 | Matsushita Refrig Co Ltd | Horizontal rotary compressor with floating mechanism |
| JPH0364676A (en) * | 1989-08-02 | 1991-03-20 | Toshiba Corp | Rotary compressor |
| JPH03271594A (en) * | 1990-03-20 | 1991-12-03 | Matsushita Refrig Co Ltd | Rotary compressor |
| JPH0466795A (en) * | 1990-07-09 | 1992-03-03 | Matsushita Refrig Co Ltd | Rotary compressor |
| CN1177680A (en) * | 1996-07-08 | 1998-04-01 | 株式会社丰田自动织机制作所 | Silencer mechanism for compressor |
| CN1363777A (en) * | 2001-12-14 | 2002-08-14 | 乐金电子(天津)电器有限公司 | Silencer of exhaust valve for sealed rotary compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1626822A (en) | 2005-06-15 |
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