CN100387845C - Upper cover of hermetic rotary compressor - Google Patents
Upper cover of hermetic rotary compressor Download PDFInfo
- Publication number
- CN100387845C CN100387845C CNB2004100722254A CN200410072225A CN100387845C CN 100387845 C CN100387845 C CN 100387845C CN B2004100722254 A CNB2004100722254 A CN B2004100722254A CN 200410072225 A CN200410072225 A CN 200410072225A CN 100387845 C CN100387845 C CN 100387845C
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- CN
- China
- Prior art keywords
- upper cover
- rotary compressor
- hermetic rotary
- loam cake
- seal casinghousing
- 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.)
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Abstract
The present invention relates to an upper cover of a sealed type rotary compressor. The sealed type rotary compressor comprises a sealed shell body and an electric motor, wherein the electric motor is composed of a rotator and a stator. A rotary shaft is inserted in a shaft hole of the center of the rotor, the lower end part of the rotary shaft is provided with an eccentric part, the outside of the rotary shaft is provided with a piston, and then a compression part is formed. A compression mechanical part which is composed of a cylinder body, an upper bearing and a lower bearing is arranged on the compression part. The bottom of the sealed outer shell is connected with a base, and the top is provided with an upper cover. A plurality of concave pits are arranged on the inner surface of the upper cover. The upper cover with the concave pits can reduce the noise of the compressor, decrease the vibration, and has no trouble in the assembling process.
Description
Technical field
The invention belongs to hermetic rotary compressor, particularly relate to and a kind ofly can reduce noise, reduce the upper cover of hermetic rotary compressor of vibration.
Background technique
The structure of general hermetic rotary compressor as shown in Figure 1, it comprises: seal casinghousing 1, the motor 4 that is made of rotor 2 and stator 3; Running shaft 5 is inserted among the axis hole 2a of rotor center, and there is eccentric part 6 the running shaft underpart, and there is piston 7 in its outside, for forming press part 8, the compression mechanical portion 12 that is made of cylinder body 9 and upper and lower bearing 10,11 is housed; The seal casinghousing bottom is connected on the base 13; At the seal casinghousing top loam cake 14 is housed.
As Fig. 2, shown in Figure 3, the inside and outside surface of present loam cake is level and smooth, no pit or projection.There is following shortcoming in such loam cake: in the compressor operation process, higher pressure refrigerant gas rises from the bottom, enters outlet pipe behind the bump loam cake.Because upper interior surface is level and smooth, behind the higher pressure refrigerant gas bump upper interior surface, the air velocity distribution of formation is comparatively steady, and the vibration easy and compressor itself of the frequency of gas causes resonance, causes the increase of vibration of compressor and noise.
Summary of the invention
The present invention can reduce noise for the technical problem that exists in the solution known technology provides a kind of, reduction is vibrated, and internal surface has the upper cover of hermetic rotary compressor of several pits.
The present invention for the technological scheme that solves the technical problem that exists in the known technology and take is: upper cover of hermetic rotary compressor of the present invention, and the structure of hermetic rotary compressor comprises: seal casinghousing, the motor that is made of rotor and stator; Running shaft is inserted in the axis hole of rotor center, and there is eccentric part the running shaft underpart, and there is piston in its outside, for forming press part, the compression mechanical portion that is made of cylinder body and upper and lower bearing is housed; The seal casinghousing bottom is connected on the base; At the seal casinghousing top loam cake is housed, on the internal surface of loam cake, is provided with several pits.
The present invention can also adopt following technical measures:
Described several projectioies corresponding that on the outer surface of loam cake, are formed with pit.
The shape of described several pits can be identical or inequality with the area size.
The position distribution of described several pits is irregular.
Advantage and good effect that the present invention has are: upper cover of hermetic rotary compressor of the present invention, because upper interior surface is provided with several pits, when higher pressure refrigerant gas bump loam cake, the air velocity distribution that forms is disorderly, unordered, natural frequency also can't be fixed, and the influence that compressor itself is caused also weakens greatly.Therefore this have the loam cake of several pits can reduce compressor noise, reduces vibration.In addition, several pits of upper interior surface only need to change mould, formed by plate stamping, so this part processing are simpler.Do not increase cost, can not impact yet compressor performance.In assembling process, can not cause trouble in addition yet.
Description of drawings
Fig. 1 is a prior art hermetic rotary compressor structural drawing;
Fig. 2 is a prior art loam cake plan view;
Fig. 3 is the prior art upper cover top view;
Fig. 4 is a loam cake plan view of the present invention;
Fig. 5 is a upper cover top view of the present invention.
Embodiment
Upper cover of hermetic rotary compressor of the present invention, the structure of hermetic rotary compressor as shown in Figure 1, it comprises: seal casinghousing 1, the motor 4 that is made of rotor 2 and stator 3; Running shaft 5 is inserted among the axis hole 2a of rotor center, and there is eccentric part 6 the running shaft underpart, and there is piston 7 in its outside, for forming press part 8, the compression mechanical portion 12 that is made of cylinder body 9 and upper and lower bearing 10,11 is housed; The seal casinghousing bottom is connected on the base 13; At the seal casinghousing top loam cake 14 is housed.
As Fig. 4, shown in Figure 5, the internal surface of loam cake of the present invention is provided with several pits 15.On the outer surface of loam cake, be formed with several projectioies corresponding 16 in addition with pit.Secondly the shape of several pits can be identical or inequality with the area size.The position distribution of several pits is irregular.
But, note during design that the position of design pit should be far away from some significant points as far as possible, as the outlet pipe position, electrode position and cover rim avoid causing trouble unnecessary when assembling.
Claims (4)
1. upper cover of hermetic rotary compressor, the structure of hermetic rotary compressor comprises: seal casinghousing (1), the motor (4) that is made of rotor (2) and stator (3); Running shaft (5) is inserted in the axis hole (2a) of rotor center, and there is eccentric part (6) the running shaft underpart, and there is piston (7) in its outside, for forming press part (8), the compression mechanical portion (12) that is made of cylinder body (9) and upper and lower bearing (10), (11) is housed; The seal casinghousing bottom is connected on the base (13); Loam cake (14) is housed at the seal casinghousing top, it is characterized in that on the internal surface of loam cake, being provided with several pits (15).
2. upper cover of hermetic rotary compressor according to claim 1 is characterized in that being formed with several projectioies corresponding with pit (16) on the outer surface of loam cake.
3. upper cover of hermetic rotary compressor according to claim 1 is characterized in that the shape of several pits and area size can be identical or inequality.
4. according to claim 1 or 3 described upper cover of hermetic rotary compressor, it is characterized in that the position distribution of several pits is irregular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100722254A CN100387845C (en) | 2004-09-28 | 2004-09-28 | Upper cover of hermetic rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100722254A CN100387845C (en) | 2004-09-28 | 2004-09-28 | Upper cover of hermetic rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1755129A CN1755129A (en) | 2006-04-05 |
| CN100387845C true CN100387845C (en) | 2008-05-14 |
Family
ID=36688605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100722254A Expired - Fee Related CN100387845C (en) | 2004-09-28 | 2004-09-28 | Upper cover of hermetic rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100387845C (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125028U (en) * | 1992-04-09 | 1992-12-16 | 西安交通大学 | Rotating damping reduction noise device for compressor |
| CN1024708C (en) * | 1991-08-01 | 1994-05-25 | 上海新新机器厂 | Casing for reducing noise of closed reciprocating refrigeration compressor |
| US20020085931A1 (en) * | 2000-12-28 | 2002-07-04 | Lee In Seop | Compressor |
| CN1427178A (en) * | 2001-12-17 | 2003-07-02 | 乐金电子(天津)电器有限公司 | Vortex compressor having device for preventing noise |
| KR20040042659A (en) * | 2002-11-15 | 2004-05-20 | 엘지전자 주식회사 | Noise shielding device of compressor |
-
2004
- 2004-09-28 CN CNB2004100722254A patent/CN100387845C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1024708C (en) * | 1991-08-01 | 1994-05-25 | 上海新新机器厂 | Casing for reducing noise of closed reciprocating refrigeration compressor |
| CN2125028U (en) * | 1992-04-09 | 1992-12-16 | 西安交通大学 | Rotating damping reduction noise device for compressor |
| US20020085931A1 (en) * | 2000-12-28 | 2002-07-04 | Lee In Seop | Compressor |
| CN1427178A (en) * | 2001-12-17 | 2003-07-02 | 乐金电子(天津)电器有限公司 | Vortex compressor having device for preventing noise |
| KR20040042659A (en) * | 2002-11-15 | 2004-05-20 | 엘지전자 주식회사 | Noise shielding device of compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1755129A (en) | 2006-04-05 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |