CN105317678B - Outer rotor rotary compressor - Google Patents
Outer rotor rotary compressor Download PDFInfo
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- CN105317678B CN105317678B CN201410271490.9A CN201410271490A CN105317678B CN 105317678 B CN105317678 B CN 105317678B CN 201410271490 A CN201410271490 A CN 201410271490A CN 105317678 B CN105317678 B CN 105317678B
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- outer rotor
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Abstract
The invention discloses a kind of outer rotor rotary compressor, including：Housing, stator support, stator, rotor and compression set.There is chamber in housing.Stator support is fixed in chamber.Stator is fixed on stator support, and stator coil is wound with stator.Rotor is rotatably set in stator exterior, rotor towards magnet is embedded with the inside of stator, the upper surface of magnet is less than the upper surface of stator.Compression set is located in housing, and the upper end of the bent axle of compression set is connected with rotor.Outer rotor rotary compressor according to embodiments of the present invention, by the way that the upper surface of the magnet of rotor to be arranged to the upper surface less than stator, so that outer rotor rotary compressor is in the running, it is upward to axial magnetic force direction caused by rotor, so that the axial force that rotor is applied to bent axle is reduced, and then the mechanical loss of outer rotor rotary compressor is reduced, improve its power consumption, improve its reliability and performance.
Description
Technical field
The present invention relates to compressor field, more particularly, to a kind of outer rotor rotary compressor.
Background technology
Rotary compressor is generally driven by rotor and the motor that stator is formed, and motor is mostly in routine techniques at present
Embedded actuator.Embedded actuator is because rotor is located at stator interior, and motor volume is big, compressor limited space so that permanent magnetism
Body dosage is limited, and is unfavorable for improving motor efficiency.
In recent years, external rotor electric machine has obtained extensive concern applied to the feasibility of compressor, wherein, external rotor electric machine
Rotor be located on the outside of stator, the compressor formed is outer rotor rotary compressor.
Because the structure of external rotor electric machine and inner rotor motor structure in the prior art are completely different, its stator and rotor it
Between caused magnetic field it is also variant.To ensure the performance of compressor, the structure of external rotor electric machine needs to be improved.
The content of the invention
It is contemplated that at least solves technical problem present in prior art.Therefore, it is an object of the invention to provide
A kind of outer rotor rotary compressor, the performance of the outer rotor rotary compressor can be ensured.
Outer rotor rotary compressor according to embodiments of the present invention, including：Housing, the housing is interior to have chamber；It is fixed
Submounts, the stator support are fixed in the chamber；Stator, the stator are fixed on the stator support, described fixed
Stator coil is wound with son；Rotor, the rotor are rotatably set in the stator exterior, described in the direction of the rotor
Magnet is embedded with the inside of magnet, the upper surface of the magnet is less than the upper surface of the stator；And compression set, the pressure
Compression apparatus is located in the housing, and the upper end of the bent axle of the compression set is connected with the rotor.
Outer rotor rotary compressor according to embodiments of the present invention is low by the way that the upper surface of the magnet of rotor is arranged to
In the upper surface of stator, so that outer rotor rotary compressor is in the running, to axial magnetic force direction caused by rotor
Upwards, so that the axial force that rotor is applied to bent axle is reduced, and then the machinery of outer rotor rotary compressor is reduced
Loss, improve the power consumption of outer rotor rotary compressor, improve the reliability and performance of outer rotor rotary compressor.
In addition, following additional technical feature can also be had according to the outer rotor rotary compressor of the present invention：
Specifically, the distance between the upper surface of the magnet and the upper surface of the stator Δ H scope are 0.1-
0.8cm。
In some specific embodiments of the present invention, the lower end of the eccentric shaft of the bent axle is provided with thrust position, described to stop
Stop the lower bearing to the compression set in pushed section position.Thus, the contact area between bent axle and lower bearing can be increased so that thrust
Position can carry out axial limiting to bent axle, the ability to bear of bent axle be improved, so as to be further ensured that outer rotor rotary compressor
Maintainability.
In some embodiments of the invention, the lower end of the rotor is provided with the thrust device for giving upwards thrust.So as to
Further reduce rotor and be applied to the axial force of bent axle, and then improve the power consumption of outer rotor rotary compressor and reliable
Property.
Alternatively, the thrust device is aerofoil fan.Thus, thrust device is simple in construction, and installation is easy, and cost is low.
Specifically, the thrust device is fixedly connected and synchronous rotary with the rotor.So that thrust device structure
Compact, cost is low.
Alternatively, the thrust device includes two rotating shaft center on the rotor symmetrically fixed blade.
In one particular embodiment of the present invention, the rotor is formed as the cylindrical shape of open upper end.Thus, rotor knot
Structure is simple, handling ease.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 and Fig. 2 is longitudinal schematic cross-sectional view according to the compressor of two embodiments of the present invention；
Fig. 3 is the enlarged drawing that Fig. 1 centre circles show C portions；
Fig. 4 is the structural representation of thrust device according to embodiments of the present invention.
Reference：
Outer rotor rotary compressor 100,
Housing 1, upper shell 11, middle housing 12, lower house 13, chamber 14,
Stator support 2, support tube 21, connecting portion 22,
Motor 3, stator 31, rotor 32, magnet 33,
Compression set 4, bent axle 41, eccentric shaft 411, the first sub- axle 412, the second sub- axle 413, thrust position 414, cylinder
42nd, piston 43, upper bearing (metal) 44, lower bearing 45,
Thrust device 5, aerofoil fan 51, fixed blade 52,
Reservoir 200.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " height ", " on ",
" under ", " top ", " bottom ", " interior ", " outer ", " axial direction ", the orientation of the instruction such as " radial direction " or position relationship be based on shown in the drawings
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple " are meant that two
Individual or two or more.
In the description of the invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ",
" fixation " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be machinery
Connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be two elements
Internal connection or the interaction relationship of two elements.For the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
Outer rotor rotary compressor 100 according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 4.
Outer rotor rotary compressor 100 according to embodiments of the present invention, as depicted in figs. 1 and 2, including：Housing 1, determine
Submounts 2, motor 3 and compression set 4.Wherein, motor 3 includes stator 31 and rotor 32.
Specifically, there is chamber 14 in housing 1, housing 1 is sealing container.Wherein, the structure of housing 1 can use existing skill
The shell structure of compressor disclosed in art, is not especially limited here.Such as in the example shown in Fig. 1 and Fig. 2, housing 1
Including upper shell 11, lower house 13 and middle housing 12, middle housing 12 is formed as the unlimited cylinder hull shape of upper and lower ends, upper shell 11
The outward flange for being formed as plectane part and upper shell 11 extends downwardly, and lower house 13 is formed as the curved panel being downwardly concaved, upper casing
Body 11 and lower house 13 are fastened on the upper and lower ends of middle housing 12 respectively, and upper shell 11, lower house 13 and middle housing 12 limit
Chamber 14.
Referring to Figures 1 and 2, stator support 2 is fixed in chamber 14, and stator 31 is fixed on stator support 2, on stator 31
Be wound with stator coil (such as copper cash), rotor 32 is rotatably set in outside stator 31, rotor 32 towards in stator 31
Side is embedded with magnet 33, and the upper surface of magnet 33 is less than the upper surface of stator 31.Compression set 4 is located in housing 1, compression set
The upper end of 4 bent axle 41 is connected with rotor 32.
In some examples of the present invention, as depicted in figs. 1 and 2, stator support 2 includes support tube 21 and connecting portion 22,
Wherein stator 31 is set on the outer wall of support tube 21, and connecting portion 22 radially stretches out from the top of support tube 21.Need
Illustrate, radial direction refers to direction shown in arrow A in Fig. 1.Alternatively, stator support 2 is formed as revolving body, stator branch
The longitudinal section of frame 2 is formed as two symmetrical " 7 " shapes, and the outward flange of connecting portion 22 is connected on the internal perisporium of housing 1.Certainly,
Stator support 2 may be alternatively formed to other shapes, as long as stator 31 can be fixed in chamber 14 by stator support 2, this
In be not especially limited.
Specifically, stator 31 is formed as the unlimited cylinder hull shape of upper and lower ends, the open top of rotor 32 and it is outer be enclosed on it is fixed
On son 31.
In some examples of the present invention, as depicted in figs. 1 and 2, compression set 4 includes cylinder 42, piston 43, upper bearing (metal)
44th, lower bearing 45, bent axle 41 etc..Upper bearing (metal) 44 is fixed in chamber 14 at interval with lower bearing 45, and cylinder 42 is located at axle
Hold between 44 and lower bearing 45, piston 43 is located in cylinder 42.Bent axle 41 includes the first sub- axle 412, the second sub- axle 413 and bias
Axle 411, eccentric shaft 411 are connected with piston 43.
The both ends of bent axle 41 are stretched out out of cylinder 42, and bent axle 41 coordinates with fixation with upper bearing (metal) 44 and lower bearing 45 respectively,
The upper end of bent axle 41 is stretched out to be connected with rotor 32 out of upper bearing (metal) 44.
Specifically, as depicted in figs. 1 and 2, outer rotor rotary compressor 100 is connected with reservoir 200, reservoir 200
Gaseous coolant can be transmitted to the cylinder 42 of compression set 4.It should be noted that stator coil, magnet 33, cylinder 42, work
Plug 43, upper bearing (metal) 44, lower bearing 45 and bent axle 41 etc. can use the structure of the respective element of compressor in the prior art, storage
The structure of liquid device 200 is also prior art, is not specifically described here.
Motor 3 produces magnetic field after starting, magnetic field produces electromagnetic force to rotor 32 to drive rotor 32 to rotate, and rotor 32 rotates
After can be rotated with dynamic crankshaft 41.During bent axle 41 rotates, the eccentric shaft 411 of bent axle 41 with the eccentric rotary of piston 43,
So that the empty cavity position between piston 43 and cylinder 42 also changes therewith, so as to be compressed to form high pressure gas to gaseous coolant
Body.
It should be noted that magnetic field is to also including axial electromagnetic force in electromagnetic force caused by rotor 32, and according to the present invention
The rotor product of embodiment is thick to be less than stator product thickness, that is to say, that the upper surface of the magnet 33 on rotor 32 is upper less than stator 31
End face, so that magnetic field is upward to axial magnetic force direction caused by rotor 32.Here, motor 3 is in the running to rotor 32
The principle of caused electromagnetic force has been prior art, is not detailed herein.
Because rotor 32 is located at the upper end of bent axle 41, therefore the gravity of rotor 32 is applied on bent axle 41, therefore, upper bearing (metal)
44th, the contact surface of lower bearing 45 and bent axle 41 needs to bear the gravity of bent axle 41 and roller 32 simultaneously.Due to motor 3 in the running
It is upward to axial magnetic force direction caused by rotor 32, so that the axial force that rotor 32 is applied to bent axle 41 is reduced,
Frictional force between bent axle 41 and upper bearing (metal) 44, lower bearing 45 reduces.Thus, outer rotor rotary compressor 100 can be reduced
Mechanical loss, improve the power consumption of outer rotor rotary compressor 100, improve the reliability of outer rotor rotary compressor 100.
Outer rotor rotary compressor 100 according to embodiments of the present invention, by by the upper surface of the magnet 33 of rotor 32
It is arranged to the upper surface less than stator 31, so that outer rotor rotary compressor 100 is in the running, to caused by rotor 32
Axial magnetic force direction is upward, so that the axial force that rotor 32 is applied to bent axle 41 is reduced, and then reduces outer rotor
The mechanical loss of rotary compressor 100, improve the power consumption of outer rotor rotary compressor 100, improve outer rotor and rotatably press
The reliability and performance of contracting machine 100.
In some embodiments of the invention, the distance between upper surface of the upper surface of magnet 33 and stator 31 Δ H
Scope is 0.1-0.8cm.
In some specific embodiments of the present invention, as shown in figures 1 and 3, the lower end of the eccentric shaft 411 of bent axle 41 is provided with
The lower bearing 45 for compressing compression apparatus 4 is stopped at thrust position 414, thrust position 414.That is, thrust position 414 is made with thrust
With thus, the contact area between bent axle 41 and lower bearing 45 can be increased so that thrust position 414 can carry out axle to bent axle 41
To spacing, the ability to bear of raising bent axle 41, so as to be further ensured that the maintainability of outer rotor rotary compressor 100.
Here, axial direction refers to direction shown in arrow B in Fig. 1.
In the example depicted in fig. 3, the first sub- axle 412 extends downwardly from the lower surface of eccentric shaft 411, the second sub- axle 413
Being extended downwardly from the lower surface of the first sub- axle 412, the second sub- axle 413 is stretched in lower bearing 45 to coordinate with lower bearing 45, the
The end face of the sub- axle 413 of direction second of one sub- axle 412 is only against on the upper surface of lower bearing 45, that is to say, that the first sub- axle 412
Being contacted between lower bearing 45 for face, the end face of the sub- axle 413 of direction second of the first sub- axle 412 is the shaft shoulder of bent axle 41, first
The end face of the sub- axle 413 of direction second of sub- axle 412 constitutes the thrust position 414 of bent axle 41.
Certainly, the invention is not restricted to this, for example, to may also include thrust bearing (not shown for outer rotor rotary compressor 100
Go out), thrust bearing can be fixed in chamber 14 and be enclosed on outside on bent axle 41, wherein, the contact site with thrust bearing of bent axle 41
Divide the thrust position 414 that also may make up bent axle 41.
In some specific embodiments of the present invention, as depicted in figs. 1 and 2, rotor 32 is formed as the cylinder of open upper end
Shape, that is to say, that the longitudinal section of rotor 32 is formed as " u "-shaped.Thus, rotor 32 is simple in construction, handling ease.
Alternatively, the upper surface of upper bearing (metal) 44 is provided with steam vent, and the high pressure refrigerant gas of compression is from exhaust in cylinder 42
Hole is discharged, so that the high pressure refrigerant gas of discharge can impact the lower surface of rotor 32, it is upward to be produced to rotor 32
Active force, thus, can reducing motor 3, rotor 32 is applied to the axial force of bent axle 41 in the running.
In some embodiments of the invention, as shown in Fig. 2 the lower end of rotor 32 is provided with the thrust dress for giving upwards thrust
5 are put, so as to further reduce the axial force that rotor 32 is applied to bent axle 41, reduces the stress at thrust position 414, Jin Ergai
The power consumption and reliability of kind outer rotor rotary compressor 100.Alternatively, thrust device 5 is aerofoil fan 51.Thus, thrust
Device 5 is simple in construction, and installation is easy, and cost is low.Still optionally further, as shown in Figure 2 and Figure 4, thrust device 5 includes two passes
Blade 52 is symmetrically fixed in the rotating shaft center of rotor 32.
Specifically, thrust device 5 is fixedly connected and synchronous rotary with rotor 32, that is to say, that thrust device 5 is without only
Vertical driver, thrust device 5 are driven to produce thrust by rotor 32, so that the compact structure of thrust device 5, cost are low.
Certainly, thrust device 5 is also not necessarily limited to this, such as thrust device 5 can be the turbine formed on the bottom wall of rotor 32
Groove, the import of turbine groove are located in the side wall of rotor 32, and the outlet of turbine groove is located on the bottom wall of rotor 32.Rotor 32 is rotating
When, gas is out of import entrained vortex race, and the gas in turbine groove is blown out from outlet, and the gas of blowout rebounds after meeting with obstruction
To rotor 32, so as to produce upward thrust to rotor 32.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the feature for combining the embodiment or example description
It is contained at least one embodiment or example of the present invention.In this manual, the schematic representation of above-mentioned term is differed
Surely identical embodiment or example are referred to.Moreover, specific features, structure, material or the feature of description can be any
Combined in an appropriate manner in one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (6)
- A kind of 1. outer rotor rotary compressor, it is characterised in that including：Housing, the housing is interior to have chamber；Stator support, the stator support are fixed in the chamber；Stator, the stator are fixed on the stator support, and stator coil is wound with the stator；Rotor, the rotor are rotatably set in the stator exterior, are embedded on the inside of the direction stator of the rotor There is magnet, the upper surface of the magnet is less than the upper surface of the stator；AndCompression set, the compression set are located in the housing, and the upper end of the bent axle of the compression set connects with the rotor Connect；Wherein,The lower end of the rotor is provided with the thrust device for giving upwards thrust, and the thrust device is aerofoil fan.
- 2. outer rotor rotary compressor according to claim 1, it is characterised in that the upper surface of the magnet with it is described The distance between upper surface of stator Δ H scope is 0.1-0.8cm.
- 3. outer rotor rotary compressor according to claim 1, it is characterised in that the lower end of the eccentric shaft of the bent axle Provided with thrust position, the lower bearing to the compression set is stopped at the thrust position.
- 4. outer rotor rotary compressor according to claim 1, it is characterised in that the thrust device and the rotor It is fixedly connected and synchronous rotary.
- 5. outer rotor rotary compressor according to claim 4, it is characterised in that the thrust device includes two passes Blade is symmetrically fixed in the rotating shaft center of the rotor.
- 6. outer rotor rotary compressor according to claim 1, it is characterised in that the rotor is formed as open upper end Cylindrical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271490.9A CN105317678B (en) | 2014-06-17 | 2014-06-17 | Outer rotor rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410271490.9A CN105317678B (en) | 2014-06-17 | 2014-06-17 | Outer rotor rotary compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105317678A CN105317678A (en) | 2016-02-10 |
| CN105317678B true CN105317678B (en) | 2018-01-12 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410271490.9A Active CN105317678B (en) | 2014-06-17 | 2014-06-17 | Outer rotor rotary compressor |
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| US7988433B2 (en) | 2009-04-07 | 2011-08-02 | Emerson Climate Technologies, Inc. | Compressor having capacity modulation assembly |
| US9249802B2 (en) | 2012-11-15 | 2016-02-02 | Emerson Climate Technologies, Inc. | Compressor |
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| CN105952647A (en) * | 2016-06-20 | 2016-09-21 | 广东美芝制冷设备有限公司 | Rotary compressor |
| US10890186B2 (en) * | 2016-09-08 | 2021-01-12 | Emerson Climate Technologies, Inc. | Compressor |
| US10801495B2 (en) * | 2016-09-08 | 2020-10-13 | Emerson Climate Technologies, Inc. | Oil flow through the bearings of a scroll compressor |
| US10753352B2 (en) | 2017-02-07 | 2020-08-25 | Emerson Climate Technologies, Inc. | Compressor discharge valve assembly |
| US11022119B2 (en) | 2017-10-03 | 2021-06-01 | Emerson Climate Technologies, Inc. | Variable volume ratio compressor |
| CN107542667A (en) * | 2017-10-16 | 2018-01-05 | 瑞智(青岛)精密机电有限公司 | A kind of external-rotor-type high energy efficiency, the Rotary Compressor of low noise |
| US10962008B2 (en) | 2017-12-15 | 2021-03-30 | Emerson Climate Technologies, Inc. | Variable volume ratio compressor |
| US10995753B2 (en) | 2018-05-17 | 2021-05-04 | Emerson Climate Technologies, Inc. | Compressor having capacity modulation assembly |
| US11655813B2 (en) | 2021-07-29 | 2023-05-23 | Emerson Climate Technologies, Inc. | Compressor modulation system with multi-way valve |
| US11846287B1 (en) | 2022-08-11 | 2023-12-19 | Copeland Lp | Scroll compressor with center hub |
| US11965507B1 (en) | 2022-12-15 | 2024-04-23 | Copeland Lp | Compressor and valve assembly |
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| CN105317678A (en) | 2016-02-10 |
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