CN100339597C - Closed compressor - Google Patents
Closed compressor Download PDFInfo
- Publication number
- CN100339597C CN100339597C CNB031412777A CN03141277A CN100339597C CN 100339597 C CN100339597 C CN 100339597C CN B031412777 A CNB031412777 A CN B031412777A CN 03141277 A CN03141277 A CN 03141277A CN 100339597 C CN100339597 C CN 100339597C
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- disk
- bearing
- hermetic type
- type compressor
- motor
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Abstract
An electric motor is provided with a third bearing for supporting a shaft on the opposite side to a compressing mechanism part, and the shaft is provided with a disk having a large inertial mass. Accordingly, inertia moment of a rotational system of the shaft 10, a piston 12 and a rotor 8 is increased by the disk having a large inertia mass, whereby during operation with a low rotational frequency, variation of turning torque can be restrained, and bending of the shaft due to centrifugal force caused by unbalance of rotation due to a fitting error of the disk having a large inertia mass can be restrained by a sub-bearing so as to restrain contact between a stator 7 and the rotor 8, and lowering of the efficiency or damage of the compressor due to excessive force applied to upper and lower bearings 14, 15 and the shaft 10 can be suppressed. Further large vibration and noise can be restrained.Be improved in efficiency of the compressor during operation with a low rotational frequency without lowering of efficiency and reliability during operation with a high rotational frequency.
Description
Technical field
No matter the present invention relates to professional with the employed hermetic type compressor of refrigeration air-conditioner in the various uses of going back the professional usefulness of right and wrong.
Background technique
As the motor compressor of cooling air conditioner, reciprocating type, rotary, eddy type are arranged, its any form all is widely used in the refrigeration air-conditioner of home-use, professional usefulness.At present use separately characteristics and developed at cost, aspect of performance.
Revolving hermetic type compressor in the past has motor part 2 and compression mechanical part 3 as shown in Figure 6 in seal container 1.In seal container 1, have the suction pipe 4 that is connected with vaporizer side, the discharge tube 5 that is connected with condenser side.Utilize frequency variator etc. with the motor part 2 that the frequency of 15Hz～150Hz turns round, be made of stator 7 and rotor 8, stator 7 is fixed in the seal container 1, and rotor 8 is rotated and is located at freely in the stator 7.Compression mechanical part 3, comprise clutch release slave cylinder 9, utilize the eccentric part 11 of axle 10 clutch release slave cylinder 9 in, does the piston 12 of rotation, will by clutch release slave cylinder 9 become with piston 12 formed apart compression volume and suction space impeller 13, with the both ends of the surface obturation of clutch release slave cylinder 9 and piston 12 and to crankshaft 10 supported as the 1st bearing 14 of upper bearing (metal) with as the 2nd bearing 15 of lower bearing, transmitted by the driving force of motor part 2 generations eccentric part 11 by axle 10.
But, the change of the rotating torques that produces in compression is bigger, in the high running of rotating speed, owing to making the change of rotating torques, the moment of inertia that rotor was had with axle, piston and motor obtains relaxing, so can suppress the loss of motor and frequency variator efficient, and in the low running of rotating speed,, the efficient of compressor is reduced owing to can not suppress the change of rotating torques with the moment of inertia that rotor was had of axle, piston and motor.In the low running of rotating speed, also have as the method that is used to suppress the rotating torques change, as shown in Figure 4 and Figure 5, there are for example disk that inertial mass is big 16 grades to be installed in to have the method in the rotary system of axle, piston and motor rotor, but are difficult to the rotation center of gravity of disk is placed the center of axle because of alignment error.Therefore, the imbalance that causes because of centre-of gravity shift, the centrifugal force that rotating speed rises and generation is bigger along with motor part 2, the deflection of axle 10 increases, stator 7 contacts with rotor 8 and reaches the efficient reduction that is subjected to excessive power and makes compressor on axle 10 at the 1st bearing the 14, the 2nd bearing 15, or also exist sometimes and cause the problem damaged, or exist the big vibration or the problem of noise of producing.
Summary of the invention
The hermetic type compressor of the present invention of technological scheme 1 is the rotary compressor that has compression mechanical part in seal container, drive the motor of described compression mechanical part, and compression mechanical part has: clutch release slave cylinder; Axle with eccentric part is made the eccentric piston that moves in described clutch release slave cylinder with utilizing described eccentric part; Be set as and be slidingly connected with described piston and with the impeller of its action; Upper end plate and lower end plate that the both ends of the surface of described clutch release slave cylinder and described piston are sealed; Be located at the described upper end plate of the described axle of supporting and the 1st and the 2nd bearing on the described lower end plate, be provided with the 3rd bearing of the described axle of supporting at the opposition side with respect to compression mechanical part of motor, and on described axle, have the big disk of inertial mass.
The hermetic type compressor of the present invention of technological scheme 2 is in technological scheme 1 described hermetic type compressor, to be characterized in that described disk is configured between described compression mechanical part and the described motor.
The hermetic type compressor of the present invention of technological scheme 3 is in technological scheme 1 described hermetic type compressor, to be characterized in that described disk is configured between described the 3rd bearing and the described motor.
The hermetic type compressor of the present invention of technological scheme 4 is in technological scheme 2 or technological scheme 3 described hermetic type compressors, to be characterized in having described disk on the rotor of described motor.
The hermetic type compressor of the present invention of technological scheme 5 is in technological scheme 1 described hermetic type compressor, to be characterized in that described disk is configured in the upside of described the 3rd bearing.
The hermetic type compressor of the present invention of technological scheme 6 is, at technological scheme 1 described hermetic type compressor, is characterized in, refrigeration agent uses not chloride hydrocarbon class or the natural kind refrigeration agent fluoridized.
Description of drawings
Fig. 1 is the sectional view of the hermetic type compressor of expression one embodiment of the invention.
Fig. 2 is the sectional view of the hermetic type compressor of expression one embodiment of the invention.
Fig. 3 is the sectional view of the hermetic type compressor of expression one embodiment of the invention.
Fig. 4 is the sectional view of hermetic type compressor of the example of conventional art.
Fig. 5 is the sectional view of hermetic type compressor of the example of conventional art.
Fig. 6 is the sectional view of hermetic type compressor of the example of conventional art.
Embodiment
The hermetic type compressor of the 1st example of the present invention is to be provided with the 3rd bearing of supporting axle at the opposition side with respect to compression mechanical part of motor, and to have the big disk of inertial mass on described axle.Adopt this structure, can obtain following effect: utilize the big disk of inertial mass and make axle, the moment of inertia of the rotary system of piston and rotor increases, can in the low running of rotating speed, suppress the change of torque, can improve the efficient of compressor, the deflection of the caused axle of centrifugal force that the imbalance that can utilize the 3rd bearing to suppress the rotation that the alignment error because of the big disk of inertial mass causes produces, energy suppresses to be subjected to the phenomenon that excessive power makes the efficient reduction of compressor or causes damaging because of contacting of stator and rotor reaches on metal (upper and axle, can also suppress big vibration and noise.
The hermetic type compressor of the 2nd example of the present invention is to constitute the big disk of inertial mass between compression mechanical part and motor.Adopt this structure, in the space that disk is contained between compression mechanical part and motor, so compressor self is reduced; Also owing in by compression mechanical part institute refrigerant compressed, there is oil, this oil is discharged from discharge tube by the gap of stator and seal container, so oily discharge capacity rises along with rotating speed and increases, and owing to the refrigeration agent of discharging from compression mechanical part collides, oil is separated with disk, so can play the effect that oily discharge capacity is reduced.
The hermetic type compressor of the 3rd example of the present invention is to constitute the big disk of inertial mass between the 3rd bearing and motor.Adopt this structure, in the space that disk is contained between the 3rd bearing and motor, so compressor self is reduced; Also owing in by compression mechanical part institute refrigerant compressed, there is oil, this oil is discharged from discharge tube by the gap of stator and seal container, so oily discharge capacity rises along with rotating speed and increases, and owing to the refrigeration agent of discharging from compression mechanical part collides, oil is separated, so can play the effect that oily discharge capacity is reduced behind the gap by stator and seal container, with the disk that is positioned at motor top.
The hermetic type compressor of the 4th example of the present invention is, owing on the rotor of motor, have the big disk of inertial mass, and because of disk and rotor become same part, so can play the effect of the assembling performance of raising compressor.
The hermetic type compressor of the 5th example of the present invention is to constitute the big disk of inertial mass on the top of the 3rd bearing.Adopt this structure, owing in by compression mechanical part institute refrigerant compressed, there is oil, this oil is discharged from discharge tube by the gap of stator and seal container, so oily discharge capacity rises along with rotating speed and increases, and since the refrigeration agent of discharging from compression mechanical part in the gap by stator and seal container, and by after between the 3rd bearing, collide with disk and oil is separated, so can play the effect that makes oily discharge capacity minimizing.
The hermetic type compressor of the 6th example of the present invention is the situation that the refrigeration agent that uses is adopted the not chloride refrigeration agent of fluoridizing hydrocarbon class, natural kind.In the refrigeration compressor in the past of the chloride refrigeration agent that uses specific freon refrigerant R12 and appointment freon refrigerant R22 etc., owing to have to utilize and have the lubricating function that chloride extreme pressure effect is produced in the refrigeration agent, so do not have reliability problems at slide part, and in the not chloride refrigeration agent of fluoridizing hydrocarbon class, natural kind, can not expect such lubricities such as specific freon refrigerant in the past.Therefore, it is harsh that sliding condition becomes, if still during such in the past slide mechanism, then exists the danger that the life-span reduces.Therefore,, just can make the slip of axle and the 1st and the 2nd bearing become smooth and easy, play an effect that can improve spool with the 1st and the 2nd bearing reliability by adopting technological scheme 1～5 described example.
Below, the present invention will be described with reference to accompanying drawing.In addition, for putting on same-sign, also omission explanation with the part that example was identical in the past.
Among Fig. 1, the 1st embodiment, have following structure: the opposition side with respect to compression mechanical part at motor is provided with the 3rd bearing 17 that axle is supported, and utilizes hot jacket or be pressed into or screw is fastening or bonding etc. that method is fixed with the big disk of inertial mass 16 on described axle.
Adopt this structure, utilize the big disk of inertial mass 16 and the moment of inertia of the rotary system of axle 10, piston 12 and rotor 8 is increased, can in the low running of rotating speed, suppress the change of torque, the efficient of raising compressor.Can play following effect: utilize the 3rd bearing 17, can suppress alignment error because of the big disk 16 of inertial mass cause rotation uneven, by the deflection of caused of the uneven centrifugal force that produces of this rotation, can suppress on metal (upper 14,15 and axle 10, to be subjected to the phenomenon that excessive power makes the efficient reduction of compressor or causes damaging, also have the vibration and the noise that can suppress big because of contacting of stator 7 and rotor 8 reaches.
The 2nd embodiment is in the 1st embodiment's hermetic type compressor, to constitute the big disk of inertial mass 16 between compression mechanical part 3 and motor 2.Adopt this structure, the effect of the form of implementing except technological scheme 1, because disk 16 is contained in the space between compression mechanical part 3 and motor 2, so compressor self is reduced; Also owing in by compression mechanical part institute refrigerant compressed, there is oil, this oil is discharged from discharge tube by the gap of stator and seal container, so oily discharge capacity rises along with rotating speed and increases, and owing to the refrigeration agent of discharging from compression mechanical part collides, oil separated, so can reduce oily discharge capacity with disk.
The 3rd embodiment is in the 1st embodiment's hermetic type compressor, to constitute the big disk of inertial mass 16 between the 3rd bearing 17 and motor 2.Adopt this structure, the effect of the form of implementing except technological scheme 1, because disk is contained in the space between the 3rd bearing 17 and motor 2, so compressor self is reduced; Also owing in by compression mechanical part institute refrigerant compressed, there is oil, this oil is discharged from discharge tube by the gap of stator and seal container, so oily discharge capacity is along with rotating speed rising people increases, and since the refrigeration agent of discharging from compression mechanical part behind gap, collide, oil is separated, so can reduce oily discharge capacity with the disk that is positioned at motor top by stator and seal container.
The 4th embodiment is, in the 2nd embodiment's hermetic type compressor, owing on the rotor 8 of motor 2, have the big disk of inertial mass 16, the effect of the form of implementing except technological scheme 2 and technological scheme 3, because of disk 16 and rotor 8 become same part, so can improve the assembling performance of compressor.
The 5th embodiment is in the 1st embodiment's hermetic type compressor, to constitute the big disk of inertial mass 16 on the top of the 3rd bearing 17.Adopt this structure, the effect of the form of implementing except technological scheme 1, owing in by compression mechanical part institute refrigerant compressed, there is oil, this oil is discharged from discharge tube by the gap of stator and seal container, so oily discharge capacity rises along with rotating speed and increases, and because the refrigeration agent of discharging from compression mechanical part in the gap by stator and seal container and by after between the 3rd bearing, collides with disk and oil is separated, so can reduce oily discharge capacity.
The 6th embodiment's hermetic type compressor, the refrigeration agent as using adopts the not chloride natural kind refrigeration agent of fluoridizing hydrocarbon class or hydrocarbon class and Ammonia or carbon dioxide etc.In the refrigeration compressor in the past of the chloride refrigeration agent that uses specific freon refrigerant R12 and appointment freon refrigerant R22 etc., because having utilization has the lubricating function that chloride extreme pressure effect is produced in refrigeration agent, so do not have reliability problems at slide part, and in the not chloride refrigeration agent of fluoridizing hydrocarbon class or natural kind, can not expect such lubricities such as specific freon refrigerant in the past.Therefore, it is harsh that sliding condition becomes, if when still be such in the past slide mechanism, then exists the danger of life-span reduction.Therefore,, just can make the slip of axle and the 1st and the 2nd bearing become smooth and easy, can improve spool reliability with the 1st and the 2nd bearing by adopting technological scheme 1～technological scheme 5 described examples.
From the foregoing description as can be known, the opposition side with respect to compression mechanical part at motor is provided with the 3rd bearing of supporting axle and has the big disk of inertial mass on axle.Adopt this structure, utilize the big disk of inertial mass and make axle, the moment of inertia of the rotary system of piston and rotor increases, can in the low running of rotating speed, suppress the change of torque, improve the efficient of compressor, utilize supplementary bearing can suppress the rotation imbalance that the alignment error because of the big disk of inertial mass causes, deflection by the uneven axle that centrifugal force caused that produces of this rotation, thereby can suppress to reach at the 1st bearing with contacting of rotor because of stator, be subjected to excessive power on the 2nd bearing and the axle and the efficient of compressor is reduced or cause damage, can also suppress big vibration and noise.
Claims (6)
1, a kind of hermetic type compressor is the rotary compressor that has compression mechanical part in seal container, drive the motor of described compression mechanical part, and described compression mechanical part has: clutch release slave cylinder; Axle with eccentric part is made the eccentric piston that moves in described clutch release slave cylinder with utilizing described eccentric part; Be set as and be slidingly connected with described piston and with the impeller of its action; Upper end plate and lower end plate that the both ends of the surface of described clutch release slave cylinder and described piston are sealed; Be located at the described upper end plate of the described axle of supporting and the 1st and the 2nd bearing on the described lower end plate, it is characterized in that, be provided with the 3rd bearing of the described axle of supporting at the opposition side with respect to compression mechanical part of motor, and on described axle, have the big disk of inertial mass.
2, hermetic type compressor as claimed in claim 1 is characterized in that, described disk is configured between described compression mechanical part and the described motor.
3, hermetic type compressor as claimed in claim 1 is characterized in that, described disk is configured between described the 3rd bearing and the described motor.
4, as claim 2 or the described hermetic type compressor of claim 3, it is characterized in that on the rotor of described motor, having described disk.
5, hermetic type compressor as claimed in claim 1 is characterized in that, described disk is configured in the upside of described the 3rd bearing.
6, hermetic type compressor as claimed in claim 1 is characterized in that, refrigeration agent uses not chloride hydrocarbon class or the natural kind refrigeration agent fluoridized.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002161208A JP2004003406A (en) | 2002-06-03 | 2002-06-03 | Sealed type compressor |
| JP2002161208 | 2002-06-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1469047A CN1469047A (en) | 2004-01-21 |
| CN100339597C true CN100339597C (en) | 2007-09-26 |
Family
ID=29996381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031412777A Expired - Fee Related CN100339597C (en) | 2002-06-03 | 2003-06-03 | Closed compressor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2004003406A (en) |
| CN (1) | CN100339597C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005248843A (en) * | 2004-03-04 | 2005-09-15 | Mitsubishi Electric Corp | Enclosed type compressor |
| JP2006144602A (en) * | 2004-11-17 | 2006-06-08 | Mitsubishi Heavy Ind Ltd | Compressor and air conditioner |
| JP2007146736A (en) * | 2005-11-28 | 2007-06-14 | Sanyo Electric Co Ltd | Rotary compressor |
| KR101462935B1 (en) | 2008-09-29 | 2014-11-19 | 엘지전자 주식회사 | Hermetic compressor and refrigerator having the same |
| JP5374229B2 (en) * | 2009-05-15 | 2013-12-25 | 東芝キヤリア株式会社 | Hermetic compressor, refrigeration cycle equipment |
| CN103398010A (en) * | 2013-07-23 | 2013-11-20 | Tcl瑞智（惠州）制冷设备有限公司 | Horizontal type compressor and packaging structure thereof |
| CN103573631B (en) * | 2013-11-05 | 2015-11-18 | 广东美芝制冷设备有限公司 | High-back-pressure rotary compressor |
| CN104481877B (en) * | 2014-12-09 | 2017-08-25 | 广东美芝制冷设备有限公司 | Low backpressure rotary compressor |
| CN204783663U (en) * | 2015-01-21 | 2015-11-18 | 广东美芝制冷设备有限公司 | Electrodynamic type compressor and have its refrigerating plant |
| CN105090031B (en) * | 2015-09-17 | 2017-12-01 | 广东美芝制冷设备有限公司 | Rotary compressor and there is its refrigerating circulatory device |
| CN105090030B (en) * | 2015-09-17 | 2018-01-16 | 广东美芝制冷设备有限公司 | Electric rotary compressor |
| CN105736372B (en) * | 2016-04-20 | 2018-06-15 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN107339237A (en) * | 2017-07-21 | 2017-11-10 | 广东美芝制冷设备有限公司 | Rotary compressor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5188520A (en) * | 1990-07-13 | 1993-02-23 | Mitsubishi Denki Kabushiki Kaisha | Scroll type compressor with frames supporting the crankshaft |
| JP2000027782A (en) * | 1998-07-15 | 2000-01-25 | Matsushita Electric Ind Co Ltd | Compressor for refrigerating air conditioner |
| JP2000097184A (en) * | 1999-10-29 | 2000-04-04 | Matsushita Electric Ind Co Ltd | Hermetic compressor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6473187A (en) * | 1987-09-11 | 1989-03-17 | Matsushita Refrigeration | Rotary type compressor |
| JP2001304121A (en) * | 2000-04-25 | 2001-10-31 | Matsushita Electric Ind Co Ltd | Motor compressor |
| JP2001323886A (en) * | 2000-05-16 | 2001-11-22 | Matsushita Electric Ind Co Ltd | Rotary compressor |
| JP2002130171A (en) * | 2001-09-18 | 2002-05-09 | Sanyo Electric Co Ltd | Closed rotary compressor |
-
2002
- 2002-06-03 JP JP2002161208A patent/JP2004003406A/en active Pending
-
2003
- 2003-06-03 CN CNB031412777A patent/CN100339597C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5188520A (en) * | 1990-07-13 | 1993-02-23 | Mitsubishi Denki Kabushiki Kaisha | Scroll type compressor with frames supporting the crankshaft |
| US5445507A (en) * | 1990-07-13 | 1995-08-29 | Mitsubishi Denki Kabushiki Kaisha | Scroll type compressor having a spacer coupling the fixed scroll to the frames |
| JP2000027782A (en) * | 1998-07-15 | 2000-01-25 | Matsushita Electric Ind Co Ltd | Compressor for refrigerating air conditioner |
| JP2000097184A (en) * | 1999-10-29 | 2000-04-04 | Matsushita Electric Ind Co Ltd | Hermetic compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1469047A (en) | 2004-01-21 |
| JP2004003406A (en) | 2004-01-08 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20070926 Termination date: 20110603 |