CN101621223A - Motor rotor structure of enclosed compressor - Google Patents

Motor rotor structure of enclosed compressor Download PDF

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Publication number
CN101621223A
CN101621223A CN200810053754A CN200810053754A CN101621223A CN 101621223 A CN101621223 A CN 101621223A CN 200810053754 A CN200810053754 A CN 200810053754A CN 200810053754 A CN200810053754 A CN 200810053754A CN 101621223 A CN101621223 A CN 101621223A
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CN
China
Prior art keywords
rotor
compressor
oblique
motor
holes
Prior art date
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Pending
Application number
CN200810053754A
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Chinese (zh)
Inventor
焦玉钢
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LG Electronics Tianjin Appliances Co Ltd
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LG Electronics Tianjin Appliances Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LG Electronics Tianjin Appliances Co Ltd filed Critical LG Electronics Tianjin Appliances Co Ltd
Priority to CN200810053754A priority Critical patent/CN101621223A/en
Publication of CN101621223A publication Critical patent/CN101621223A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a motor rotor structure of an enclosed compressor. The enclosed compressor comprises a shell, a motor assembly and a compressor assembly. The shell comprises a cylinder, an upper cover and a lower cover. The motor assembly comprises a stator, a rotor and a crankshaft. The compressor assembly comprises a cylinder, an upper bearing and a lower bearing. A circumferential gap is formed between the stator and the rotor, and the rotor is evenly distributed with a plurality of oblique through holes along the circumference. As the rotor is provided with the plurality of oblique through holes, the flow of a refrigerant is increased, the motor can be cooled quickly so as to improve the performance of the motor; besides, during the operation of the rotor, the refrigerant passes through the oblique through holes, the flowing way of the refrigerant is changed, and the refrigerant flows out in a vortex state so as to greatly increase the cooling effect and greatly improve the refrigeration capacity of the compressor.

Description

Motor rotor structure of enclosed compressor
Technical field
The invention belongs to a kind of compressor, be specifically related to a kind of a plurality of oblique through holes that on rotor, form vertically,, play the motor rotor structure of enclosed compressor of raising electric efficiency so that increase cold medium flux, cooling motor fast.
Background technology
Shown in Fig. 1～3, the closed-type compressor of prior art comprises housing 1, electric machine assembly 20 and compressor assembly 30.Upper inside at housing 1 is equipped with electric machine assembly 20, at the downside of electric machine assembly 20 compressor assembly 30 that is equipped with separated by a distance.Housing 1 is made up of cylindrical drum 11, loam cake 12 and the lower cover 13 etc. of hollow.
Electric machine assembly 20 is pressed on the inner peripheral surface that is fixed on cylindrical shell 11, it is made up of stator 21, rotor 22 and rotary crankshaft 23 of being pressed into the center that is fixed on rotor 22 and transmitting revolving force etc., form all slits 25 at stator 21 and rotor 22, be circumferentially formed uniform a plurality of concavo-convex folded button 26 on rotor 22, the effect of described concavo-convex folded button 26 is to superpose voluntarily mutually between the lamination and fasten.
Compressor assembly 30 comprises cylinder 31, upper bearing 32 and lower bearing 33, at the inner eccentric part 23a that forms rotary crankshaft 23 of the compression stroke C of cylinder 31, in the outside of eccentric part 23a, being provided with can rotation and rolling piston 35, one sides of revolution contact with the excircle upper thread of rolling piston 35 and be the impeller structures such as (not shown) of suction area and compressional zone with the compression stroke C zoning that the outer circumference surface of the inner peripheral surface of cylinder 31 and rolling piston 35 forms by eccentric part 23a.The suction inlet (not shown) that also is communicated with the suction pipe in the suction area in the cylinder 31, and the outlet (not shown) that is used to discharge compressed media in the compressional zone.
Form oilhole 24 in the middle of bent axle 23, oilhole 24 passes through lubricated rotatable parts for lubricating oil.
In addition, be provided with outlet (not shown) in the upper bearing 32, its upside binding is fixed with muffler 34, is used to reduce the noise that is produced by pressure differential from the compressed media gas of outlet discharge.For making dielectric gas be discharged to seal casinghousing 1 outside by muffler 34, on loam cake 12, be provided with discharge pipe 50, on loam cake 12, also be provided with the binding post 51 that connects power line, be provided with suction pipe 40 in the bottom of seal casinghousing 1.
But, in the closed-type compressor of prior art, during compressor operation, pass through in the slit 25 that refrigerant forms between stator 21 and rotor 22, play the effect of heat radiation, cooling motor, but because slit 25 sizes are less, the motor radiating amount is less, rising along with motor temperature has influenced motor properties.
Summary of the invention
The present invention proposes for the shortcoming that overcomes the prior art existence, its objective is provides a kind of a plurality of through holes that form vertically on rotor, make refrigerant in the middle of the rotor by, can be simultaneously the interior outside of cooling motor rotor fast, play the motor rotor structure of enclosed compressor of raising electric efficiency.
Technical scheme of the present invention is: a kind of motor rotor structure of enclosed compressor, described closed-type compressor comprises housing, electric machine assembly and compressor assembly.Housing comprises cylindrical shell, loam cake and lower cover, and electric machine assembly and compressor assembly are installed in housing; Electric machine assembly comprises stator, rotor and bent axle; Compressor assembly comprises cylinder, upper bearing and lower bearing, forms a circumferential gap between stator and rotor.
On rotor, be circumferentially formed uniform a plurality of concavo-convex folded button.
On rotor, be uniformly distributed along the circumference and form a plurality of oblique through holes.
A plurality of oblique through holes be evenly distributed on the concentric circumference of concavo-convex folded button on.
A plurality of oblique through holes and a plurality of concavo-convex folded position that is buckled on the circumference are evenly to stagger mutually.
The incline direction of each oblique through hole is consistent.
The present invention is owing to formed a plurality of oblique through holes on rotor, increase the passage of the mixture circulation of a refrigerant and lubricating oil, increased the flow of mixture, more fast and effeciently cooling motor, especially reduce the temperature of rotor, played the effect that improves motor performance.In addition, in the rotor operation process, mixture passes through from inclined hole, and mixture is flowed at the compressor chamber inside vortex, through with the temperature exchange of chamber wall, reduced exhaust temperature, the refrigerating capacity of compressor is improved to some extent.
Description of drawings
Fig. 1 is the longitudinal sectional drawing of the closed-type compressor of prior art;
Fig. 2 is the front view of the closed-type compressor electric machine assembly of prior art;
Fig. 3 is the vertical view of the closed-type compressor electric machine assembly of prior art;
Fig. 4 is the front view of closed-type compressor electric machine assembly of the present invention;
Fig. 5 is the vertical view of closed-type compressor electric machine assembly of the present invention.
Wherein: 1 housing, 11 cylindrical shells
12 loam cakes, 13 lower covers
20 electric machine assemblies, 21 stators
22 rotors, 23 bent axles
23a eccentric part 24 oilholes
25 slits, 26 concavo-convex folded buttons
27 electric machine assemblies, 28 rotors
29 oblique through hole 30 compressor assemblies
31 cylinders, 32 upper bearing (metal)s
33 lower bearings, 34 mufflers
35 pistons, 36 concavo-convex folded buttons
40 suction pipes, 50 discharge pipes
51 binding posts
Embodiment
Below, with reference to drawings and Examples motor rotor structure of enclosed compressor of the present invention is elaborated:
The identical label of employing that parts in the accompanying drawing of the present invention are identical with the parts of prior art.
Shown in Fig. 1～5, a kind of motor rotor structure of enclosed compressor, described closed-type compressor comprise housing 1, electric machine assembly 27 and compressor assembly 30.Upper inside at housing 1 is equipped with electric machine assembly 27, at the downside of electric machine assembly 27 compressor assembly 30 that is equipped with separated by a distance.Housing 1 is made up of cylindrical drum 11, loam cake 12 and the lower cover 13 etc. of hollow.
Electric machine assembly 27 is pressed on the inner peripheral surface that is fixed on cylindrical shell 11, and it is made up of stator 21, rotor 28 and rotary crankshaft 23 of being pressed into the center that is fixed on rotor 28 and transmitting revolving force etc.Form a circumferential gap 25 between stator 21 and rotor 28, be circumferentially formed uniform a plurality of concavo-convex folded button 36 on rotor 28, the present invention is four.The effect of described concavo-convex folded button 36 is to superpose voluntarily mutually between the lamination and fasten.
Compressor assembly 30 comprises cylinder 31, upper bearing 32 and lower bearing 33, at the inner eccentric part 23a that forms rotary crankshaft 23 of the compression stroke C of cylinder 31, in 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 compressional zone with the compression stroke C zoning that the outer circumference surface of the inner peripheral surface of cylinder 31 and rolling piston 35 forms.The suction inlet (not shown) that also is communicated with the suction pipe in the suction area in the cylinder 31, and the outlet (not shown) that is used to discharge compressed media in the compressional zone.
Form oilhole 24 in the middle of bent axle 23, oilhole 24 passes through lubricated rotatable parts for lubricating oil.
In addition, be provided with outlet (not shown) in the upper bearing 32, its upside binding is fixed with muffler 34, is used to reduce the noise that is produced by pressure differential from the compressed media gas of outlet discharge.For making dielectric gas be discharged to seal casinghousing 1 outside by muffler 34, on loam cake 12, be provided with discharge pipe 52, on loam cake 12, also be provided with the binding post 51 that connects power line, be provided with suction pipe 40 in the bottom of seal casinghousing 1.
Being uniformly distributed along the circumference on rotor 28 forms a plurality of oblique through holes 29, and the present invention is four, a plurality of oblique through holes 29 be evenly distributed on the concentric circumference of concavo-convex folded button 36 on.
A plurality of oblique through holes 29 and a plurality of concavo-convex folded position that is buckled on the circumference are evenly to stagger mutually.
The incline direction of a plurality of oblique through holes 29 is consistent.
Tiltedly through hole 29 passes through cooling motor for refrigerant.
The present invention has increased the flow of the mixture of refrigerant and lubricating oil owing to formed a plurality of oblique through holes on rotor, and cooling motor plays the effect that improves motor performance fast.In addition, in the rotor operation process, the mixture of refrigerant and lubricating oil passes through from oblique through hole, changed the mixture mixture type of flow of mixture, flow out (with reference to the filled arrows among Fig. 4) with vorticity, increase cooling effect widely, can increase substantially the refrigerating capacity of compressor.

Claims (4)

1, a kind of motor rotor structure of enclosed compressor, described closed-type compressor comprises housing (1), electric machine assembly (27) and compressor assembly (30), housing (1) comprises cylindrical shell (11), loam cake (12) and lower cover (13), electric machine assembly (27) comprises stator (21), rotor (28) and bent axle (23), compressor assembly (30) comprises cylinder (31), upper bearing (32) and lower bearing (33), between stator (21) and rotor (28), form a circumferential gap (25), be circumferentially formed uniform a plurality of concavo-convex folded button (36) on rotor (28), it is characterized in that: being uniformly distributed along the circumference on rotor (28) forms a plurality of oblique through holes (29).
2, motor rotor structure of enclosed compressor according to claim 1 is characterized in that: a plurality of oblique through holes (29) be evenly distributed on the concentric circumference of concavo-convex folded button (36) on.
3, motor rotor structure of enclosed compressor according to claim 1 is characterized in that: a plurality of oblique through holes (29) and the position of a plurality of concavo-convex folded buttons (36) on circumference are evenly to stagger mutually.
4, motor rotor structure of enclosed compressor according to claim 1 is characterized in that: the incline direction of each oblique through hole (29) is consistent.
CN200810053754A 2008-07-04 2008-07-04 Motor rotor structure of enclosed compressor Pending CN101621223A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200810053754A CN101621223A (en) 2008-07-04 2008-07-04 Motor rotor structure of enclosed compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810053754A CN101621223A (en) 2008-07-04 2008-07-04 Motor rotor structure of enclosed compressor

Publications (1)

Publication Number Publication Date
CN101621223A true CN101621223A (en) 2010-01-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN200810053754A Pending CN101621223A (en) 2008-07-04 2008-07-04 Motor rotor structure of enclosed compressor

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CN (1) CN101621223A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611249A (en) * 2012-04-18 2012-07-25 中国船舶重工集团公司第七0四研究所 Fanless motor cooling structure
CN102891565A (en) * 2012-11-01 2013-01-23 中国船舶重工集团公司第七0四研究所 High-power density permanent magnet motor cooling system
CN103573640A (en) * 2013-10-31 2014-02-12 广东美芝制冷设备有限公司 Rotary compressor
CN104821672A (en) * 2015-05-19 2015-08-05 河北超亚电子科技股份有限公司 Asynchronous motor rotor core
CN109728668A (en) * 2018-12-19 2019-05-07 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） A kind of ventilation cooling structure of rotor
CN114526516A (en) * 2022-03-04 2022-05-24 徐州富海美润信息科技有限公司 Domestic vertical energy-conserving intelligent air conditioner

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611249A (en) * 2012-04-18 2012-07-25 中国船舶重工集团公司第七0四研究所 Fanless motor cooling structure
CN102891565A (en) * 2012-11-01 2013-01-23 中国船舶重工集团公司第七0四研究所 High-power density permanent magnet motor cooling system
CN103573640A (en) * 2013-10-31 2014-02-12 广东美芝制冷设备有限公司 Rotary compressor
CN103573640B (en) * 2013-10-31 2015-10-28 广东美芝制冷设备有限公司 Rotary compressor
CN104821672A (en) * 2015-05-19 2015-08-05 河北超亚电子科技股份有限公司 Asynchronous motor rotor core
CN109728668A (en) * 2018-12-19 2019-05-07 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） A kind of ventilation cooling structure of rotor
CN114526516A (en) * 2022-03-04 2022-05-24 徐州富海美润信息科技有限公司 Domestic vertical energy-conserving intelligent air conditioner
CN114526516B (en) * 2022-03-04 2022-12-20 徐州富海美润信息科技有限公司 Domestic vertical energy-conserving intelligent air conditioner

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Application publication date: 20100106