CN1542274A - Hermetic compressor - Google Patents
Hermetic compressor Download PDFInfo
- Publication number
- CN1542274A CN1542274A CNA031786804A CN03178680A CN1542274A CN 1542274 A CN1542274 A CN 1542274A CN A031786804 A CNA031786804 A CN A031786804A CN 03178680 A CN03178680 A CN 03178680A CN 1542274 A CN1542274 A CN 1542274A
- Authority
- CN
- China
- Prior art keywords
- seal casinghousing
- damping unit
- hermetic compressor
- elastic support
- flange portion
- 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.)
- Pending
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Classifications
-
- 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
-
- 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
- F04B39/121—Casings
-
- 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
Abstract
A hermetic compressor, in which a damping unit is mounted on an inner surface of a hermetic casing to stably and elastically support the hermetic casing and change a resonant frequency of the hermetic casing. The damping unit is provided at a predetermined position of an upper casing part of the hermetic casing to elastically support the upper casing part with predetermined elasticity. The damping unit has a mounting part at which the damping unit is mounted to the upper casing part, and an elastic support part to elastically support the upper casing part. The elastic support part has a flange part projected in a direction to a length which exceeds a plane aligned with a surface of the mounting part. The flange part thus elastically supports the hermetic casing in a state of being elastically deformed. The elastic support part also has a wing part to connect the flange part to the mounting part. The wing part is rounded in a direction opposite to a projected direction of the flange part.
Description
Technical field
The present invention relates in general to hermetic compressor, and relating in particular to can attenuate acoustic noise in its operation and the hermetic compressor of vibration.
Background technique
Usually, compressor is that a kind of compression such as materials such as gas refrigerant are with volume that reduces material or the machine that changes the phase of material.As the example of compressor, hermetic compressor typically is used for refrigeration system, with the gas refrigerant in the compression hermetic compressor chamber before the refrigerant with compression is discharged into condenser.
There is the conventional hermetic-type compressor of above-mentioned functions that seal casinghousing is arranged.Seal casinghousing is shaped on upper and lower housing parts, and described upper and lower housing assembling forms monomer.The driver element that produces driving force has been installed in seal casinghousing and has been aspirated compression unit with pressurized gas refrigerant by the driving force of using driver element output.
In hermetic compressor, driver element comprises: stator generates an electromagnetic field along described stator; And having the rotor of rotating shaft, described rotor is passed in described rotating shaft vertically.Upper end in rotating shaft is provided with eccentric part.
In detailed description, the driver element of traditional hermetic compressor has stator, and when electric power was applied on the stator, described stator generated an electromagnetic field.Rotor rotates under the effect of the electromagnetic field that produces along stator.Centre of rotor is passed in rotating shaft vertically, makes rotating shaft rotate with rotor.
Compression unit has pressing chamber is limited to wherein cylinder block.Cylinder head is installed on the cylinder block.Cylinder head is existing to guide suction chamber in the pressing chamber into gas refrigerant, also have will compression refrigerant guide to the discharge chamber of seal casinghousing outside from pressing chamber.Piston is received in the pressing chamber, is used for implementing in pressing chamber straight reciprocating motion.
Hermetic compressor with said structure moves as follows.When electric power is applied on the stator of driver element, generate an electromagnetic field along stator.Therefore, the rotor that has rotating shaft rotates under the effect of the electromagnetic field that produces along stator.In this case, rely on the piston rod that piston is connected to rotating shaft, the rotation of rotor is converted into the straight reciprocating motion of piston in the pressing chamber.Because the straight reciprocating motion of piston in the pressing chamber, piston constantly aspirates, compresses and discharge gas refrigerant.
Yet traditional hermetic compressor has following problem.Promptly in the running of hermetic compressor, special high frequency waves and low frequency wave are radiated to the internal surface of seal casinghousing from pressing chamber, this is owing to the pressure pulsation that is created in gas refrigerant consistent with the compression of refrigerant in the pressing chamber and is created in that the mechanical noise on the junction and vibration cause between pressing chamber internal surface and the outer surface of piston, wherein because the rubbing contact between pressing chamber and the piston causes described mechanical noise and vibration.In this case, the special high frequency waves that emit on the seal casinghousing internal surface are identical with the resonant frequency of seal casinghousing with the low frequency wave frequency.Therefore, resonance takes place and produces the extraordinary noise and the vibration of bothering hermetic compressor people on every side in seal casinghousing.
Summary of the invention
Therefore, one aspect of the present invention content provides a kind of hermetic compressor, and wherein the resonant frequency of seal casinghousing is changed, with the resonance of prevention seal casinghousing, thereby in operating process, the gimp and the vibration of decay hermetic compressor.
Additional aspect content of the present invention and/or advantage part in the following description are elaborated, and part can obtain conspicuous understanding from specification, perhaps can learn by implementing the present invention.
Aforementioned and other aspect contents of the present invention can realize by a kind of hermetic compressor is provided, described hermetic compressor comprises: seal casinghousing, its content are equipped with the driver element that produces driving force and compress compression unit with intake-gas refrigerant by the driving force of driver element output; And damping unit, it supports seal casinghousing with predetermined elastic force ground, thereby changes the resonant frequency of seal casinghousing.
Seal casinghousing has upper shell and lower shell body, and described upper shell and lower shell body assembly monomer, and damping unit is located in upper shell and the lower shell body at least one housing.
Damping unit has mounting portion and elastic support part, wherein be mounted on the seal casinghousing at described assembly department office damping unit, and described elastic support partly is in the state of resiliently deformable, with the elastic support seal casinghousing.
The mounting portion of damping unit is installed on the seal casinghousing by spot-welding technology.
Elastic support part tool exceeds flange portion with the direction projection on the plane of mounting portion surface in alignment along length.Flange portion carries out elastic support to seal casinghousing under the state of resiliently deformable like this.
Elastic support part also has flange portion is connected to wing part on the mounting portion.Wing part is circular along the direction opposite with the projection direction of flange portion,, make the elastic support part to carry out elastic support to seal casinghousing with predetermined elastic force.
Description of drawings
With reference to accompanying drawing, by description of the preferred embodiment of the present invention, these and/or other aspect content of the present invention and advantage will become clear more and be easier to understand, wherein:
Fig. 1 is a sectional side view, shows the structure according to the hermetic compressor of the specific embodiment of the invention;
Fig. 2 is a perspective view, shows the damping unit in the upper case portion that is installed in the seal casinghousing of forming hermetic compressor shown in Figure 1;
Fig. 3 is a sectional side view, shows the damping unit before damping unit is installed in the seal casinghousing shown in Figure 1 among Fig. 2;
Fig. 4 is a sectional side view, shows the damping unit after damping unit is installed in the seal casinghousing shown in Figure 1 among Fig. 2; And
Fig. 5 is a plotted curve, and the contrast conventional hermetic-type compressor shows the noise damping effect according to hermetic compressor of the present invention.
Embodiment
Below will be to a preferred embodiment of the present invention will be described in detail, the corresponding components identical of wherein identical reference character.Explanation to embodiment is description of drawings the present invention in order to reference below.
Fig. 1 is a sectional side view, shows the structure according to the hermetic compressor of the embodiment of the invention.
As shown in the figure, hermetic compressor according to the present invention has seal casinghousing 10, and described seal casinghousing 10 is shaped on upper case portion 11 and lower shell body part 12, and described upper case portion 11 and 12 assemblings of lower shell body part constitute the monomer of sealing.Produce the driver element 20 of driving force and be installed in 10 li of seal casinghousings by the driving force suction of driver element 20 outputs and the compression unit 30 of pressurized gas refrigerant.
In hermetic compressor, driver element 20 comprises: stator 21 can generate an electromagnetic field along stator 21; And having the rotor 22 of rotating shaft 23, rotor 22 is passed in rotating shaft 23 vertically.In the upper end of rotating shaft 23 eccentric part 24 is set.
Piston 34 is received among the pressing chamber 31a.Piston 34 is connected to the eccentric part 24 of rotating shaft 23 by piston rod 35, and the off-centre of eccentric part 24 rotatablely moves and is converted into the straight reciprocating motion of piston 34 like this.That is, when eccentric part 24 was rotated along with rotating shaft 23, piston 34 was done straight reciprocating motion in pressing chamber 31a.
Fig. 2 is a perspective view, shows the damping unit in the upper case portion that is installed in seal casinghousing.As shown in the figure, damping unit 40 is conglomerates of being made by metallic material, and be provided with mounting portion 41 and elastic support part 42, wherein damping unit 40 is installed at 41 places, described mounting portion in the upper case portion 11 on the preposition, and described elastic support part 42 flexibly supports upper case portion 11.
In damping unit 40, mounting portion 41 is a flat section, and damping unit 40 is installed on the precalculated position of upper case portion 11 internal surfaces herein.In the present invention, mounting portion 41 to the installation of upper case portion 11 is preferably implemented by the spot-welding technology that can safely mounting portion 41 be installed on the upper case portion 11.
In preferred embodiment shown in the drawings, damping unit 40 is located on the upper case portion 11 of seal casinghousing 10.Yet, should understand under the situation that does not influence function of the present invention, damping unit 40 also can be located on the lower shell body part 12 of seal casinghousing 10 except can being located at upper case portion 11.That is, damping unit can be installed in upper case portion 11 and the lower shell body part 12 at least one housing parts.
Fig. 3 is a side view, shows the damping unit 40 before being installed in the seal casinghousing 10.Fig. 4 is a side view, shows the damping unit 40 after being installed in the seal casinghousing 10.
As shown in Figure 3 and Figure 4, when damping single 40 is installed on the internal surface of seal casinghousing 10 at 41 places, mounting portion safely by spot-welding technology, two flange portion 42a of damping unit 40 with the internal surface of the sealed housing 10 of long serpentine to pusher, while two round wing 42b resiliently deformables, as shown in Figure 4.So the elastic support part 42 that is formed by flange portion 42a and circle wing part 42b flexibly supports seal casinghousing 10, flexibly distortion simultaneously.
In this case, because its circular shape, therefore the easy resiliently deformable of circle wing 42b can prevent the plastic deformation of elastic support part 42.So elastic support part 42 is stablized and is flexibly supported seal casinghousing 10, and does not lose its elasticity.
Operating effect with hermetic compressor of above-mentioned damping unit 40 will be described below.
When electric power acts on the hermetic compressor, generate an electromagnetic field along the stator 21 of driver element 20.Like this, under the effect of the electromagnetic field that produces along stator 20, the rotor 22 with rotating shaft 23 is rotated.Therefore, the piston 34 that is connected by piston rod 35 on the eccentric part 24 of rotating shaft 23 is done straight reciprocating motion in pressing chamber 31a, thus continuous sucking, compression, release gas refrigerant.
In the operating process of hermetic compressor, special high frequency waves and low frequency wave emit to the internal surface of seal casinghousing 10 from pressing chamber 31a, this is because pressure pulsation and the mechanical noise and the vibration of gas refrigerant, and wherein mechanical noise and vibration are owing to the contact friction between pressing chamber 31a and the piston 34 is created in junction point between pressing chamber 31a internal surface and piston 34 outer surfaces.In this case, the special height that emits on seal casinghousing 10 internal surfaces may be identical with the resonant frequency of seal casinghousing 10 with the low frequency wave frequency, make seal casinghousing 10 take place to resonate and produce the extraordinary noise and the vibration of bothering the people around hermetic compressor like this, as described in conventional hermetic-type compressor.Yet hermetic compressor of the present invention has damping unit 40, and this damping unit 40 is installed on the internal surface of seal casinghousing 10, with the resonant frequency of elastic support seal casinghousing 10 and change seal casinghousing 10.Can prevent that like this seal casinghousing 10 and the special high frequency waves and the low frequency wave that emit to seal casinghousing 10 internal surfaces from resonating, thus the running noises and the vibration of the hermetic compressor run duration of having decayed.To be damping unit 40 with its predetermined elastic force stable and flexibly support seal casinghousing 10, thereby change the resonant frequency of seal casinghousing 10.
Fig. 5 is a plotted curve, shows with conventional hermetic-type compressor to compare, according to the noise damping effect of hermetic compressor of the present invention.Shown in plotted curve, according to the present invention, compare with the hermetic compressor that has without any the conventional seals housing of damping unit, because damping unit 40 has changed the resonant frequency of seal casinghousing 10, thereby prevented that seal casinghousing 10 from resonating, the hermetic compressor that therefore has a seal casinghousing 10 that has damping unit 40 its gimp that decayed effectively.
According to above description clearly, the invention provides a kind of hermetic compressor, it is stable and flexibly support seal casinghousing wherein to be installed in damping unit on the seal casinghousing internal surface, and changes the resonant frequency of seal casinghousing.Therefore, just can avoid seal casinghousing and the special high frequency waves and the low frequency wave that emit to the seal casinghousing internal surface to resonate, thereby the decay hermetic compressor is in its operating gimp and vibration.
Although preferred embodiments more of the present invention are showed and are described, but it will be understood to those of skill in the art that under the situation that does not depart from principle of the present invention and essence, can change these embodiments, its scope also falls in claim of the present invention and the equivalent institute restricted portion thereof.
Claims (6)
1. hermetic compressor comprises:
Seal casinghousing is installed in the driver element that produces driving force and passes through to use the driving force suction of described driver element output and the compression unit of pressurized gas refrigerant in the sealing housing; And
With the damping unit of the predetermined described seal casinghousing of elastic force ground support, to change the resonant frequency of described seal casinghousing.
2. hermetic compressor according to claim 1 is characterized in that, described seal casinghousing comprises upper case portion and the lower shell body part that is assembled into monomer and is located at the damping unit at least one housing parts in the described upper and lower housing parts.
3. hermetic compressor according to claim 1 is characterized in that, described damping unit comprises:
The mounting portion, described damping unit is mounted on the described seal casinghousing in described assembly department office; And
The elastic support part, this elastic support partly is in the state of resiliently deformable, flexibly to support described seal casinghousing.
4. hermetic compressor according to claim 3 is characterized in that the mounting portion of described damping unit is installed on the seal casinghousing by spot-welding technology.
5. hermetic compressor according to claim 3, it is characterized in that, described elastic support partly comprises flange portion, this flange portion exceeds direction projection with the plane of the surface in alignment of described mounting portion along length, and described like this flange portion flexibly supports described seal casinghousing under the state of resiliently deformable.
6. hermetic compressor according to claim 5, it is characterized in that, described elastic support partly comprises the wing part that described flange portion is connected to described mounting portion, described wing part is circular along the direction opposite with the projection direction of described flange portion, thereby allows described elastic support part to support described seal casinghousing with predetermined elastic force ground.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0026634A KR100517459B1 (en) | 2003-04-28 | 2003-04-28 | Hermetic Compressor |
| KR200326634 | 2003-04-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1542274A true CN1542274A (en) | 2004-11-03 |
Family
ID=33297364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031786804A Pending CN1542274A (en) | 2003-04-28 | 2003-07-21 | Hermetic compressor |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20040213682A1 (en) |
| JP (1) | JP2004324638A (en) |
| KR (1) | KR100517459B1 (en) |
| CN (1) | CN1542274A (en) |
| BR (1) | BR0302953A (en) |
| IT (1) | ITBO20030468A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102844567A (en) * | 2010-01-27 | 2012-12-26 | 三电有限公司 | Fluid machine |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016152126A1 (en) * | 2015-03-25 | 2016-09-29 | パナソニックＩｐマネジメント株式会社 | Hermetic compressor and refrigeration device |
| JP2018003639A (en) * | 2016-06-29 | 2018-01-11 | 日立アプライアンス株式会社 | Hermetic type compressor |
| JP2022528559A (en) * | 2019-03-29 | 2022-06-14 | パナソニック・アプライアンシーズ・リフリジャレーション・デバイシーズ・シンガポール | Crankshaft for closed compressors and closed compressors |
| KR102494486B1 (en) * | 2021-05-14 | 2023-02-06 | 엘지전자 주식회사 | Compressor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57186672U (en) * | 1981-05-20 | 1982-11-26 | ||
| KR20000010326A (en) * | 1998-07-31 | 2000-02-15 | 구자홍 | Noise damping structure for hermetical type compressor |
| JP2000130329A (en) * | 1998-10-23 | 2000-05-12 | Matsushita Refrig Co Ltd | Hermetically sealed electric compressor |
| KR100318598B1 (en) * | 2000-03-07 | 2001-12-28 | 이충전 | Noise Falling Apparatus Of a Compressor |
| KR100350805B1 (en) * | 2000-03-09 | 2002-09-05 | 삼성광주전자 주식회사 | Sealed compressor |
-
2003
- 2003-04-28 KR KR10-2003-0026634A patent/KR100517459B1/en not_active IP Right Cessation
- 2003-07-02 US US10/612,389 patent/US20040213682A1/en not_active Abandoned
- 2003-07-11 BR BR0302953-0A patent/BR0302953A/en not_active IP Right Cessation
- 2003-07-21 CN CNA031786804A patent/CN1542274A/en active Pending
- 2003-07-30 JP JP2003283032A patent/JP2004324638A/en active Pending
- 2003-08-01 IT IT000468A patent/ITBO20030468A1/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102844567A (en) * | 2010-01-27 | 2012-12-26 | 三电有限公司 | Fluid machine |
| CN102844567B (en) * | 2010-01-27 | 2015-05-06 | 三电有限公司 | Fluid machine |
Also Published As
| Publication number | Publication date |
|---|---|
| US20040213682A1 (en) | 2004-10-28 |
| KR20040092732A (en) | 2004-11-04 |
| ITBO20030468A1 (en) | 2004-10-29 |
| KR100517459B1 (en) | 2005-09-29 |
| BR0302953A (en) | 2005-03-29 |
| JP2004324638A (en) | 2004-11-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |