CN106151040A - Rotary compressor - Google Patents

Rotary compressor Download PDF

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Publication number
CN106151040A
CN106151040A CN201610494787.0A CN201610494787A CN106151040A CN 106151040 A CN106151040 A CN 106151040A CN 201610494787 A CN201610494787 A CN 201610494787A CN 106151040 A CN106151040 A CN 106151040A
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CN
China
Prior art keywords
rotor
balance weight
rotary compressor
groove
side wall
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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.)
Granted
Application number
CN201610494787.0A
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Chinese (zh)
Other versions
CN106151040B (en
Inventor
李万涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Meizhi Precision Manufacturing Co Ltd
Original Assignee
Anhui Meizhi Precision Manufacturing Co Ltd
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Publication date
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Priority to CN201610494787.0A priority Critical patent/CN106151040B/en
Publication of CN106151040A publication Critical patent/CN106151040A/en
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Publication of CN106151040B publication Critical patent/CN106151040B/en
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C23/00Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
    • F04C23/02Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/0021Systems for the equilibration of forces acting on the pump
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02Lubrication; Lubricant separation
    • F04C29/026Lubricant separation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

The invention discloses a kind of rotary compressor, this rotary compressor includes: housing, compression assembly and electric machine assembly.Compression assembly is located in housing, electric machine assembly is located in housing and includes rotor and stator, stator is installed in housing, rotor is located in stator, and rotor is connected to drive crank rotation with the bent axle of compression assembly, and rotor is provided with balance weight A near one end of compression assembly, rotor is provided with balance weight B away from one end of compression assembly, balance weight A is provided with groove near the end face of rotor, and balance weight A has the first side wall being oppositely arranged and the second sidewall, the through the first side wall of groove and the second sidewall.Rotary compressor according to the present invention, by arranging groove on rotor end-face at balance weight A, owing to coolant is different with the centrifugal force suffered by lubricating oil, thus, the separation between coolant and lubricating oil can be realized, effectively reduce the oil spitting amount of rotary compressor, improve the overall performance of rotary compressor.

Description

Rotary compressor
Technical field
The present invention relates to household electrical appliance technical field, specifically, particularly relate to a kind of compression mechanism and rotary compression Machine.
Background technology
Rotary compressor has a wide range of applications in household appliance technical field, such as electric refrigerator, air-conditioning etc..Rotary compression Owner to include the compression unit being positioned at compressor, drives the electric system of compression unit work, and external shell, storage Liquid device.Wherein, electric system includes stator component and rotor part, rotor part include rotor core, Magnet, rivet, end plate, Balance weight.In correlation technique, the motor rotor balance weight of rotary compressor, it is provided with groove near rotor core side, close Rotor core side is completely and rotor core or the seamless installation of end plate.Due to the flow-disturbing effect of balance weight, cause coolant and freezing Oil cannot be carried out efficiently separating, and causes oil spitting amount of compressor big, reduces the performance of compressor and air conditioning system, cause efficiency The problem declined.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention carries Going out a kind of rotary compression mechanism, described rotary compressor has that coolant is effective with lubricating oil separation, refrigerating efficiency is high Advantage.
Rotary compressor according to embodiments of the present invention, including: housing;Compression assembly, described compression assembly is located at institute State in housing;Electric machine assembly, described electric machine assembly is located in described housing and includes rotor and stator, and described rotor is rotationally Being located in described stator, described stator is installed in described housing, and described rotor is connected to drive with the bent axle of described compression assembly Dynamic described crank rotation, described rotor is provided with balance weight A near one end of described compression assembly, and described rotor is away from described compression One end of assembly is provided with balance weight B, and described balance weight A is provided with groove near the end face of described rotor, from the footpath of described rotor On inner side to the direction of radial outside, described balance weight A has the first side wall being oppositely arranged and the second sidewall, described groove Through described the first side wall and described second sidewall.
Rotary compressor according to embodiments of the present invention, by arranging groove on rotor end-face at balance weight A, During rotary compressor work, balance weight A rotates together with rotor, and now, the gaseous coolant being mixed with lubricating oil can be from Groove opening on the first side wall enters in groove, and is flowed out to outside groove by groove opening on the second sidewall Portion, owing to lubricating oil is different with the density of gaseous coolant, under the influence of centrifugal force, can be effectively by cold to lubricating oil and gaseous state Matchmaker separates, such that it is able to reduce the oil spitting amount of rotary compressor, improves the overall performance of rotary compressor.According to this A bright embodiment, on described groove, the extended line towards the rotation centerline of described rotor deviates described rotation centerline.
According to one embodiment of present invention, described groove is positioned at the two ends on described the first side wall and described second sidewall Being respectively the first end and the second end, in described rotor direction of rotation, described first end is positioned at the downstream of described second end.
According to one embodiment of present invention, described first end is near the middle part of described the first side wall.
According to one embodiment of present invention, described groove linearly extends.
According to one embodiment of present invention, at least one in described the first side wall and described second sidewall is formed as arc Shape wall.
According to one embodiment of present invention, at least one in described balance weight A and described balance weight B and described rotor Riveting.
According to one embodiment of present invention, between described balance weight A and described rotor and/or described balance weight B and institute State and between rotor, be provided with gear magnetic dividing plate.
Accompanying drawing explanation
Becoming from combining general the accompanying drawings below description to embodiment with advantage of the above-mentioned and/or additional aspect of the present invention Obtain substantially with easy to understand, wherein:
Fig. 1 is rotary compressor structural representation according to embodiments of the present invention;
Fig. 2 is rotary compressor confined explosion schematic diagram according to embodiments of the present invention;
Fig. 3 is rotary compressor partial structurtes schematic diagram according to embodiments of the present invention;
Fig. 4 is the sectional structure schematic diagram of A-A face shown in Fig. 3;
Fig. 5 is the sectional structure schematic diagram of C-C face shown in Fig. 3;
Fig. 6 is the structural representation of the balance weight A of rotary compressor according to embodiments of the present invention;
Fig. 7 be rotary compressor oil spitting amount according to embodiments of the present invention have a design sketch;
Fig. 8 is rotary compressor performance (COP) beneficial aspects figure according to embodiments of the present invention.
Reference:
Rotary compressor 100,
Housing 1,
Compression assembly 2,
Electric machine assembly 3, rotor 31, stator 32,
Bent axle 4,
Balance weight A, groove 51, the first end 511, the second end 512, the first side wall 52, the second sidewall 53, rivet hole 54,
Balance weight B,
Gear magnetic dividing plate 7, reservoir 8, air entry 9, gas outlet 10, rivet 11.
Balance weight A arrange before oil spitting amount C, balance weight A arranges oil spitting amount D after groove,
Balance weight A arranges rotary compressor performance E before groove, and balance weight A arranges the rotary compressor after groove Performance F.
Oil spitting amount W, compressor performance Y.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings.Below with reference to The embodiment that accompanying drawing describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
Below with reference to Fig. 1-Fig. 6, rotary compressor 100 according to embodiments of the present invention is described.
As shown in figs 1 to 6, rotary compressor 100 according to embodiments of the present invention, rotary compressor 100 includes: Housing 1, compression assembly 2 and electric machine assembly 3.
Specifically, compression assembly 2 is located in housing 1, in electric machine assembly 3 is located at housing 1 and include rotor 31 and stator 32, rotor 31 is rotatably arranged in stator 32, and stator 32 is installed in housing 1, and rotor 31 connects with the bent axle 4 of compression assembly 2 Connecing to drive bent axle 4 to rotate, rotor 31 is provided with balance weight A near one end of compression assembly 2, and rotor 31 is away from compression assembly 2 One end is provided with balance weight B, balance weight A and is provided with groove 51 near the end face of rotor 31, from the radially inner side of rotor 31 to radially On the direction in outside, balance weight A has the first side wall 52 and the second sidewall 53, the through the first side wall of groove 51 52 being oppositely arranged With the second sidewall 53.When rotary compressor 100 is in running order, rotor 31 band dynamic balance weight A rotates together, is mixed with The gaseous coolant of lubricating oil can enter in groove 51 from the groove 51 opening on the first side wall 52, and is existed by groove 51 It is outside that opening on second sidewall 53 flows out to groove 51, owing to lubricating oil is different with the density of gaseous coolant, at centrifugal force Under effect, can effectively lubricating oil be separated with gaseous coolant, such that it is able to reduce the oil spitting amount of rotary compressor 100.
Rotary compressor 100 according to embodiments of the present invention, by arranging recessed at balance weight A on rotor 31 end face Groove 51, when rotary compressor 100 works, balance weight A rotates together with rotor 31, now, is mixed with the gas of lubricating oil State coolant can enter in groove 51 from the groove 51 opening on the first side wall 52, and by groove 51 at the second sidewall 53 On opening to flow out to groove 51 outside, owing to lubricating oil is different with the density of gaseous coolant, under the influence of centrifugal force, permissible Effectively lubricating oil is separated with gaseous coolant, such that it is able to reduce the oil spitting amount of rotary compressor 100, improve rotary The overall performance of compressor 100.
As it is shown on figure 3, according to one embodiment of present invention, towards the prolongation of rotation centerline of rotor 31 on groove 51 Line deviation rotation centerline.Thus, it is possible to the separating effect strengthened between coolant and lubricating oil.Through testing inspection, work as groove Time on 51 towards the extended line deviation rotation centerline of the rotation centerline of rotor 31, the reduction being disposed radially than groove 51 is told Oil mass better.
In some embodiments of the invention, groove 51 is positioned at the two ends on the first side wall 52 and the second sidewall 53 respectively First end 511 and the second end 512, in rotor 31 direction of rotation, the first end 511 is positioned at the downstream of the second end 512.Thus, may be used To further enhance the separating effect between coolant and lubricating oil, more effectively reduce the oil spitting amount of rotary compressor 100.Need Being noted that, when rotary compressor 100 is in running order, rotor 31 rotates, the direction rotated along rotor 31 is Downstream direction, the direction rotated against rotor 31 is updrift side.
In some embodiments of the invention, the first end 511 can be near the middle part of the first side wall 52 (such as institute in Fig. 3 Show).Thus, when rotary compressor 100 rotary work, lubricating oil can be facilitated to flow out along groove 51 in flowing into groove 51, Thus realize the separation between coolant and lubricating oil, reduce the oil spitting amount of rotary compressor 100.Other in the present invention In embodiment, the first end 511 can also be located at two ends or other positions of the first side wall 52.
Further, groove 51 linearly extends.Thus, when rotary compressor 100 works, balance weight A is with turning Son 31 rotate, it is simple to lubricating oil under the influence of centrifugal force, throws away in groove 51, thus significantly more efficient realize lubricating oil and Separation between coolant.It is to say, the intersection point along bearing of trend Yu rotor 31 diameter of groove 51 is positioned in the rotation of rotor 31 Position beyond heart line.
According to one embodiment of present invention, at least one in the first side wall 52 and the second sidewall 53 is formed as arcwall Face.Thus, the fixed installation between balance weight A and rotor 31 is facilitated.As shown in Figure 3, the first side wall 52 and second of balance weight A Sidewall 53 is all formed as curved wall.In the other embodiment of the present invention, the second sidewall 53 may be formed as other Shape.
According to one embodiment of present invention, at least one in balance weight A and balance weight B rivets with rotor 31.Thus, So that balance weight A and balance weight B is arranged on rotor 31 end face simply and easily, and, install solid and reliable.Such as Fig. 2 Shown in, balance weight A is provided with rivet hole 54, balance weight A can be stably fixed on rotor 31 end face by rivet 11.
As shown in Figure 2, according to one embodiment of present invention, between balance weight A and rotor 31 and/or balance weight B with Gear magnetic dividing plate 7 it is provided with between rotor 31.It is to say, can be to be provided with gear magnetic dividing plate 7 between balance weight A and rotor 31, also Can be between balance weight B and rotor 31, to be provided with gear magnetic dividing plate 7;Certainly can also is that between balance weight A and rotor 31, balance Gear magnetic dividing plate 7 it is equipped with between block B and rotor 31.Thus, it is possible to prevent the magnetic of balance weight A and balance weight B interference electric machine assembly 3 , thus ensure the work of the stability and high efficiency of electric machine assembly 3, improve the overall performance of rotary compressor 100.
The rotary compressor 100 according to the present invention is described in detail with a specific embodiment referring to Fig. 1-Fig. 6. It is worth being understood by, described below is merely illustrative rather than concrete restriction to the present invention.
As it is shown in figure 1, rotary compressor 100 includes: housing 1, compression assembly 2 and electric machine assembly 3.
Wherein, compression assembly 2 is located in housing 1, in electric machine assembly 3 is located at housing 1 and include rotor 31 and stator 32, turns Son 31 is rotatably arranged in stator 32, and stator 32 is installed in housing 1, and rotor 31 is connected to drive with the bent axle 4 of compression assembly 2 Dynamic crankshaft 4 rotates, and the lower end of rotor 31 is provided with balance weight A, and the remote upper end of rotor 31 is provided with balance weight B, balance weight A and rotor 31 Between and balance weight B and rotor 31 between be provided with gear magnetic dividing plate 7, balance weight A and balance weight B all rivets with rotor 31.
When rotary compressor 100 works, coolant is entered in compression assembly 2 by reservoir 8 from air entry 9, passes through Electric machine assembly 3 band dynamic crankshaft 4 rotates, and coolant is compressed by the rotation of bent axle 4 with drive compression assembly 2, the coolant after compression Discharge from gas outlet 10.During compression mechanism kinematic, in order to reduce the abrasion between two parts of relative motion, need Will to compression mechanism in oil addition, in order to realize efficiently separating between coolant and lubricating oil, reduce rotary compressor 100 Oil spitting amount, groove 51 can be set on balance weight A 5.
As it is shown on figure 3, the upper surface of balance weight A is provided with groove 51, from the radially inner side of rotor 31 to radial outside On direction, balance weight A has the first side wall 52 and the second sidewall 53 the first side wall 52 and the second equal shape of sidewall 53 being oppositely arranged Become curved wall, the through the first side wall of groove 51 52 and the second sidewall 53 and linearly extend.Groove 51 is positioned at the first side wall 52 and second two ends on sidewall 53 are respectively the first end 511 and the second end 512, and the first end 511 is in the first side wall 52 Portion.In rotor 31 direction of rotation, the first end 511 is positioned at the downstream of the second end 512.
Through test determination, after the upper surface of balance weight A is provided with groove 51, oil spitting amount W of rotary compressor 100 Obvious improvement has been obtained with performance Y.Fig. 7 is the useful of oil spitting amount W of the rotary compressor 100 according to the embodiment of the present invention Design sketch, it can be seen that oil spitting amount W (in Fig. 7 shown in D) after balance weight A arranges groove 51 is not provided with than balance weight A The reduction that oil spitting amount W (in Fig. 7 shown in C) during groove 51 has substantially obtained.Fig. 8 is the rotary compressor of the embodiment of the present invention Performance Y (COP) the beneficial effect figure of 100, it can be seen that rotary after groove 51 is set on the end face of balance weight A Performance Y (in Fig. 8 shown in F) the relatively balance weight A of compressor 100 is not provided with performance Y (Fig. 8 of rotary compressor 100 during groove 51 Shown in middle E) it is significantly improved.
Thus, by arranging groove 51 at balance weight A on rotor 31 end face, when rotary compressor 100 works, Balance weight A rotates together with rotor 31, and now, the gaseous coolant being mixed with lubricating oil can be from groove 51 at the first side wall 52 On opening enter in groove 51, and flow out to outside groove 51 by the groove 51 opening on the second sidewall 53, due to Lubricating oil is different with the density of gaseous coolant, under the influence of centrifugal force, can effectively be separated with gaseous coolant by lubricating oil, Such that it is able to reduce the oil spitting amount of rotary compressor 100, improve the overall performance of rotary compressor 100.
In describing the invention, it is to be understood that term " " center ", " width ", " on ", D score, " afterwards ", " interior ", Orientation or the position relationship of the instruction such as " outward ", " radially " are based on orientation shown in the drawings or position relationship, are for only for ease of Describe the present invention and simplification description rather than instruction or the device of hint indication or element must have specific orientation, Yi Te Fixed azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, such as two, three Individual etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc. Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral;Can be that machinery connects Connect, it is also possible to be electrical connection or each other can communication;Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, permissible It is connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For this area For those of ordinary skill, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel Close and combination.
Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, revises, replaces and modification.

Claims (8)

1. a rotary compressor, it is characterised in that including:
Housing;
Compression assembly, described compression assembly is located in described housing;
Electric machine assembly, described electric machine assembly is located in described housing and includes that rotor and stator, described rotor are rotatably arranged at In described stator, described stator is installed in described housing, and described rotor is connected to drive institute with the bent axle of described compression assembly Stating crank rotation, described rotor is provided with balance weight A near one end of described compression assembly, and described rotor is away from described compression assembly One end be provided with balance weight B, described balance weight A is provided with groove near the end face of described rotor, inside from the footpath of described rotor Side is on the direction of radial outside, and described balance weight A has the first side wall being oppositely arranged and the second sidewall, and described groove is through Described the first side wall and described second sidewall.
Rotary compressor the most according to claim 1, it is characterised in that towards the rotation of described rotor on described groove The extended line of centrage deviates described rotation centerline.
Rotary compressor the most according to claim 2, it is characterised in that described groove is positioned at described the first side wall and institute Stating the two ends on the second sidewall and be respectively the first end and the second end, in described rotor direction of rotation, described first end is positioned at institute State the downstream of the second end.
Rotary compressor the most according to claim 3, it is characterised in that described first end is near described the first side wall Middle part.
Rotary compressor the most according to claim 3, it is characterised in that described groove linearly extends.
Rotary compressor the most according to claim 1, it is characterised in that in described the first side wall and described second sidewall At least one be formed as curved wall.
Rotary compressor the most according to claim 1, it is characterised in that in described balance weight A and described balance weight B At least one rivets with described rotor.
8. according to the rotary compressor according to any one of claim 1-7, it is characterised in that described balance weight A is with described Gear magnetic dividing plate it is provided with between rotor and/or between described balance weight B and described rotor.
CN201610494787.0A 2016-06-29 2016-06-29 Rotary compressor Active CN106151040B (en)

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CN106151040B CN106151040B (en) 2018-09-25

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110247506A (en) * 2018-03-09 2019-09-17 上海海立电器有限公司 Rotor and its balance weight and compressor
CN113700650A (en) * 2021-09-16 2021-11-26 珠海格力电器股份有限公司 Compressor and air conditioner with same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB443626A (en) * 1934-09-18 1936-03-03 Bosch Robert Improvements in or relating to compressors for gaseous fluids
CN1160127A (en) * 1995-12-11 1997-09-24 运载器有限公司 Counterweight drag eliminator
JP2007107449A (en) * 2005-10-13 2007-04-26 Daikin Ind Ltd Compressor
CN102162454A (en) * 2011-04-19 2011-08-24 松下·万宝(广州)压缩机有限公司 Oil-gas separated-type balancing block
JP2013044314A (en) * 2011-08-26 2013-03-04 Mitsubishi Heavy Ind Ltd Rotary compressor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB443626A (en) * 1934-09-18 1936-03-03 Bosch Robert Improvements in or relating to compressors for gaseous fluids
CN1160127A (en) * 1995-12-11 1997-09-24 运载器有限公司 Counterweight drag eliminator
JP2007107449A (en) * 2005-10-13 2007-04-26 Daikin Ind Ltd Compressor
CN102162454A (en) * 2011-04-19 2011-08-24 松下·万宝(广州)压缩机有限公司 Oil-gas separated-type balancing block
JP2013044314A (en) * 2011-08-26 2013-03-04 Mitsubishi Heavy Ind Ltd Rotary compressor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110247506A (en) * 2018-03-09 2019-09-17 上海海立电器有限公司 Rotor and its balance weight and compressor
CN113700650A (en) * 2021-09-16 2021-11-26 珠海格力电器股份有限公司 Compressor and air conditioner with same

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