CN106521882A - Washing machine - Google Patents
Washing machine Download PDFInfo
- Publication number
- CN106521882A CN106521882A CN201610943061.0A CN201610943061A CN106521882A CN 106521882 A CN106521882 A CN 106521882A CN 201610943061 A CN201610943061 A CN 201610943061A CN 106521882 A CN106521882 A CN 106521882A
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- China
- Prior art keywords
- rotor
- stator
- retainer ring
- washing machine
- latch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/40—Driving arrangements for driving the receptacle and an agitator or impeller, e.g. alternatively
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention discloses a washing machine. The washing machine includes an outer barrel, an inner barrel, an impeller, and a motor; the motor includes stators capable of rotating relative to each other, first rotor portions, second rotor portions, and switching mechanisms capable of switching between a washing state and a dewatering state; the stators are arranged on the outer barrel and are fixed on relative positions of the outer barrel; the first rotor portion are drivingly connected to the impeller; the second rotor portions are drivingly connected to the inner barrel; when the switching mechanisms are in the washing state, the first rotor portions are used as rotors for driving the impeller to rotate; and when the switching mechanisms are in the dewatering state, the first rotor portions and the second rotor portions are used as rotors for driving the inner barrel and the impeller to rotate synchronously. The washing machine is high in system efficiency, is little in noise, is high in torque density, and is small in size.
Description
Technical field
A kind of the present invention relates to washing machine manufacturing technology field, more particularly to washing machine.
Background technology
At present, the type of drive of rotary drum washing machine is usually belt drives or direct drive, and both drive patterns are both needed to
Clutch to be equipped with is slowed down, and not only affects the system effectiveness of washing machine, and noise is larger.For this purpose, carrying in correlation technique
Go out the technical scheme using mechanical clutch switching device, but the torque density of this technical scheme is less, and complex structure, lead
Cause the volume of washing machine larger.
The content of the invention
It is contemplated that at least solving one of above-mentioned technical problem in correlation technique to a certain extent.For this purpose, this
Bright to propose a kind of washing machine, the washing machine structure has the advantages that system effectiveness is high, noise is little, torque density is big, small volume.
Washing machine according to embodiments of the present invention, including：Outer barrel；Interior bucket, the interior bucket are rotatably provided in said tub
It is interior；Impeller, the impeller are located in the interior bucket in which can revolve ground；Motor, stator that the motor includes can rotating against respectively,
The first rotor portion, the second rotor portions and the switchable switching mechanism between washing state and dewatering state, the stator peace
It is mounted in said tub and fixes with the relative position of said tub, the first rotor portion is connected with the impeller, institute
State the second rotor portions to be connected with the interior bucket, when the switching mechanism is in the washing state, the fixation stator with
The relative position of second rotor portions, the first rotor portion serve as the rotor for driving the impeller rotation, described to cut
When converting mechanism is in the dewatering state, the relative position of the fixation the first rotor portion and second rotor portions, described the
One rotor portions and second rotor portions serve as the rotor for driving the interior bucket and the impeller synchronous rotary.
Washing machine structure of the invention has the advantages that system effectiveness is high, noise is little, torque density is big, small volume.
In addition, motor according to embodiments of the present invention can also have following additional technical characteristic：
According to one embodiment of present invention, the first rotor portion, second rotor portions and the stator are along described
The radial direction of motor interval setting successively from outside to inside.
According to one embodiment of present invention, the switching mechanism includes：Stator retainer ring, the stator retainer ring and institute
The relative position for stating stator is fixed；The first rotor retainer ring, the first rotor retainer ring are relative with the first rotor portion
Position is fixed；Second rotor retaining ring, the relative position of second rotor retaining ring and second rotor portions are fixed；Drive
Portion and lock unit, the lock unit are driven by the drive division and are slided, when the switching mechanism is in the washing state, described
Lock unit is coordinated with the stator retainer ring and second rotor retaining ring under the driving of the drive division respectively, described to cut
When converting mechanism is in the dewatering state, the lock unit is fixed with the first rotor under the driving of the drive division respectively
Ring and second rotor retaining ring coordinate.
According to one embodiment of present invention, the drive division is the control for driving the lock unit slip by electromagnetic induction
Coil processed.
According to one embodiment of present invention, the lock unit, the stator retainer ring, the first rotor retainer ring and
Latch is respectively equipped with second rotor retaining ring, when the switching mechanism is in the washing state, on the lock unit
Latch engage with the latch on latch and second rotor retaining ring in the stator retainer ring respectively, the switching machine
When structure is in the dewatering state, the latch on the lock unit respectively with the first rotor retainer ring on latch and described
Latch engagement on second rotor retaining ring.
According to one embodiment of present invention, the latch on the lock unit is distributed in the outer peripheral face of the lock unit and interior
On side face, the latch in the stator retainer ring is distributed on the outer peripheral face of the stator retainer ring, and the first rotor is fixed
Latch on ring is distributed on the inner peripheral surface of the first rotor retainer ring, and the latch on second rotor retaining ring is distributed in
On the inner peripheral surface of second rotor retaining ring.
According to one embodiment of present invention, the motor also includes：Stator cage, the stator cage are arranged on described
In outer barrel, the stator is connected with the stator cage；Outer rotor casing, the stator, the first rotor portion and institute
State the second rotor portions to be each provided in the outer rotor casing, the first rotor portion is connected with the outer rotor casing and institute
State outer rotor casing to be connected with the impeller by first rotating shaft；Internal rotor casing, the internal rotor casing are located at described
In outer rotor casing, the internal rotor casing is connected with second rotor portions and the internal rotor casing passes through second turn
Axle is connected with the interior bucket, and the stator retainer ring is connected with the stator cage, the first rotor retainer ring
It is connected with the outer rotor casing, second rotor retaining ring is connected with second rotor portions.
According to one embodiment of present invention, second rotating shaft is hollow axle, and the first rotating shaft is for being located at described the
The solid shafting being spaced apart in two rotating shafts and with second rotating shaft.
According to one embodiment of present invention, matched somebody with somebody by oiliness bearing between the first rotating shaft and second rotating shaft
Close.
According to one embodiment of present invention, pass through bearing fit between the stator cage and second rotating shaft.
According to one embodiment of present invention, the stator includes：Stator conducting magnet core；Stator winding, the stator around
Group is wound on the stator conducting magnet core.
According to one embodiment of present invention, the first rotor portion includes：Rotor conducting magnet core；Permanent magnet, it is described forever
Magnet is located on the rotor conducting magnet core.
According to one embodiment of present invention, second rotor portions include：Multiple conducting magnet cores；Multiple non-magnetic intervals
Block, multiple conducting magnet cores and multiple non-magnetic spacer blocks are alternately arranged along the circumference of the motor.
According to one embodiment of present invention, the number of pole-pairs of the rotating excitation field that the stator is produced is ps, described first turn
The number of pole-pairs of the permanent magnetic field that sub-portion is produced is pf, the quantity of the conducting magnet core is pr, wherein, pr=| ps±pf|。
Description of the drawings
Fig. 1 is washing machine according to embodiments of the present invention sectional view in the washing condition；
Fig. 2 is the enlarged drawing in A portions in Fig. 1；
Fig. 3 is the section view of washing machine shown in Fig. 1 motor in the washing condition；
Fig. 4 is the sectional view of washing machine according to embodiments of the present invention under dewatering state；
Fig. 5 is the enlarged drawing in B portions in Fig. 4；
Fig. 6 is the section view of the motor of washing machine shown in Fig. 4 under dewatering state.
Reference：
S：Washing machine；
100：Outer barrel；
200：Interior bucket；
300：Motor；
31：Stator；311：Stator conducting magnet core；312：Stator winding；
32：The first rotor portion；321：Rotor conducting magnet core；322：Permanent magnet；
33：Second rotor portions；331：Conducting magnet core；332：Non-magnetic spacer block；
34：Switching mechanism；
341：Stator retainer ring；342：The first rotor retainer ring；343：Second rotor retaining ring；
3441：Drive division；3442：Lock unit；
351：Stator cage；352：Outer rotor casing；353：Internal rotor casing；
361：Bearing；Containing bearing 362；
37：First rotating shaft；
38：Second rotating shaft；
400：Impeller.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
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 be not considered as limiting the invention.
1 to Fig. 6 specifically describes washing machine S according to embodiments of the present invention below in conjunction with the accompanying drawings.
Washing machine S according to embodiments of the present invention includes outer barrel 100, interior bucket 200, impeller 400 and motor 300.It is concrete and
Speech, interior bucket 200 are rotatably provided in outer barrel 100, and impeller 400 is rotatably provided in interior bucket 200, and motor 300 includes difference
The stator 31 that can rotate against, the first rotor portion 32, the second rotor portions 33 and can cut between washing state and dewatering state
The switching mechanism 34 for changing.
Wherein, the first rotor portion 32, the second rotor portions 33 and stator 31 are spaced from outside to inside successively along the radial direction of motor 300
Arrange, stator 31 is arranged in outer barrel 100 and is fixed with the relative position of outer barrel 100, and the first rotor portion 32 is driven with impeller 400
Connection, the second rotor portions 33 are connected with interior bucket 200.When switching mechanism 34 is in washing state, fixed stator 31 and second
The relative position of rotor portions 33, the first rotor portion 32 serve as the rotor for driving impeller 400 to rotate, and switching mechanism 34 is in de-
During water state, the relative position of the first rotor portion 32 and the second rotor portions 33, the first rotor portion 32 and the second rotor portions 33 are fixed
Serve as the rotor for driving 400 synchronous rotary of interior bucket 200 and impeller.
In other words, washing machine S is for rotary drum washing machine and mainly by outer barrel 100, interior bucket 200, impeller 400 and motor 300
Composition.Direction (above-below direction as shown in Figure 1) extends respectively in axial direction for outer barrel 100 and interior bucket 200, and outer barrel 100 is fixed on laundry
On the cabinet (not shown) of machine S, interior bucket 200 is rotatably set in outer barrel 100, and is coaxially disposed with outer barrel 100, impeller
400 be rotatably arranged with interior bucket 200 so that interior bucket 200 relative to outer barrel 100 and impeller 400 relative to interior bucket
200 with rotational independence, and then drives impeller 400 to rotate alone or rotate with the 200 common rotation of interior bucket by motor 300,
Reach washing and dehydration purpose.
Further, motor 300 is main by 34 groups of stator 31, the first rotor portion 32, the second rotor portions 33 and switching mechanism
Columnar structured, and the first rotor portion 32, second is generally formed into into, stator 31, the first rotor portion 32, the second rotor portions 33
Rotor portions 33, stator 31 are spaced apart along the radial direction ecto-entad of motor 300 successively and arrange, that is to say, that the second rotor portions
33 outsides and the inner side positioned at the first rotor portion 32 for being located at stator 31, are spaced apart between three and arrange, so as to avoid any two
Interference is produced when rotating against between person, and then affects the normal work of washing machine S.Meanwhile, the first rotor portion 32, the second rotor
Between 31 three of portion 33 and stator, any two can be rotated against, that is to say, that the first rotor portion 32 can be relative to fixed
Son 31 or the second rotor portions 33 rotate, and the second rotor portions 33 can also be done and be revolved relative to the first rotor portion 32 or stator 31
Transhipment is dynamic.In addition, stator 31 is located in outer barrel 100 and is fixed with the relative position of outer barrel 100, i.e., stator 31 and outer barrel 100 it
Between geo-stationary, the first rotor portion 32 is connected with impeller 400, that is to say, that can between the first rotor portion 32 and impeller 400
To be synchronized with the movement, it is also possible to synchronous not move, so as to realize driving of the motor 300 to impeller 400.Second rotor portions 33 and interior bucket
200 are connected, that is to say, that can be synchronized with the movement between the second rotor portions 33 and interior bucket 200, it is also possible to synchronous not move,
So as to realize the driving of bucket 200 in 300 pairs, motor.Furthermore, when washing machine S is in washing state, switching mechanism 34 can be consolidated
Relative position between stator 31 and the second rotor portions 33 (as shown in Figure 1), so that stator 31 and the second rotor portions 33
Used as the stator of motor 300, relative to 100 transfixion of outer barrel, now, the first rotor portion 32 is formed as can be relative to stator 31
Rotate with the second rotor portions 33, i.e., the rotor as motor 300 drive impeller 400 to rotate, so that motor 300 is equivalent
Number of pole-pairs is higher, and then realizes the big torque low-speed high-efficiency running status of washing machine S.
When washing machine S is in dewatering state, switching mechanism 34 can fix the first rotor portion 32 and the second rotor portions 33
Relative position between (as shown in Figure 4), so that the first rotor portion 32 and the second rotor portions 33 turn as the double of motor 300
Son, relative to 31 synchronous rotary of outer barrel 100 and stator, so as to drive 400 synchronous rotary of interior bucket 200 and impeller, and then causes
The equivalent number of pole-pairs of motor 300 is relatively low, and then realizes the little torque high-speed and high-efficiency running status of washing machine S.So as to pass through switching
Mechanism 34 realizes the switching between washing state and dewatering state, realizes equivalent rotor number of pole-pairs and operating point to motor 300
The regulation of frequency, so that realize the pole-changing variable-pressure operation of washing machine S.
Thus, washing machine S according to embodiments of the present invention, by by stator 31, the first rotor portion 32, the second rotor portions 33
It is set to any two can rotate against, and alternatively fixes the position of two of which using switching mechanism 34, so that
Obtain the first rotor portion 32 or the first rotor portion 32 and the second rotor portions 33 are respectively formed as can drive under two kinds of working conditions
The rotor of dynamic impeller 400 or impeller 400 and interior bucket 200, and then in the case where the connection of 300 winding of motor is not changed, realize electricity
The switching of 300 rotor number of poles of machine and running frequency, so that adapt to the different mode of washing machine S.Meanwhile, by using motor 300
High torque (HT) direct drive is carried out, can effectively simplify overall structure, reduced machine volume, and also washing machine S can be reduced
Operation noise and whole function consumption.The compact conformation of washing machine S, small volume, noise are low, energy consumption is low, it is possible to achieve high torque (HT)
Direct drive, simultaneously effective takes into account washing machine S high energy efficiency operations under washing mode and dehydration mode.
In certain specific embodiments of the invention, switching mechanism 34 includes that stator retainer ring 341, the first rotor is fixed
Ring 342, the second rotor retaining ring 343, drive division 3441 and lock unit 3442.The relative position of stator retainer ring 341 and stator 31
Put fixation, the relative position in the first rotor retainer ring 342 and the first rotor portion 32 is fixed, the second rotor retaining ring 343 and second
The relative position of rotor portions 33 is fixed, and lock unit 3442 drives slip, switching mechanism 34 to be in washing state by drive division 3441
When, lock unit 3442 is coordinated with stator retainer ring 341 and the second rotor retaining ring 343 under the driving of drive division 3441 respectively,
Switching mechanism 34 be in dewatering state when, lock unit 3442 under the driving of drive division 3441 respectively with the first rotor retainer ring
342 and second rotor retaining ring 343 coordinate.
Specifically, as shown in Figure 2 and Figure 5, switching mechanism 34 is main by stator retainer ring 341, the first rotor retainer ring
342nd, the second rotor retaining ring 343, drive division 3441 and lock unit 3442 are constituted.Stator retainer ring 341 is generally formed into annulus
Shape structure, the relative position of stator retainer ring 341 and stator 31 are fixed, i.e., between stator retainer ring 341 and stator 31 it is synchronous not
Motion, the relative position in the first rotor retainer ring 342 and the first rotor portion 32 are fixed, the first rotor retainer ring 342 and first turn
Sub-portion 32 can be synchronized with the movement, it is also possible to synchronous not move；The relative position of the second rotor retaining ring 343 and the second rotor portions 33
It is fixed, that is to say, that the second rotor retaining ring 343 can be synchronized with the movement with the second rotor portions 33, also synchronously can not move, it is synchronous
3442 adjacent stator retainer ring 341 of device, the first rotor retainer ring 342, the second rotor retaining ring 343 are arranged, and can be passed through
Drive division 3441 drives in axial direction (above-below direction as shown in Figure 1 and Figure 4) mobile, so as to realize the different shapes of motor 300
Switching between state, and then realize the pole-changing variable-pressure operation of washing machine S.
When switching mechanism 34 is in washing state (position as shown in Figure 2), lock unit 3442 is driven in drive division 3441
Under, side is coordinated with stator retainer ring 341, and opposite side is coordinated with the second rotor retaining ring 343, so that stator 31 and second
The relative position of rotor portions 33 fixes (i.e. synchronous not move), and now, the first rotor portion 32 is formed as the rotation of relative stator 31
Rotor simultaneously can drive impeller 400 to rotate, so that the equivalent number of pole-pairs of motor 300 is higher, and then realize that washing machine S's is big
Torque low-speed high-efficiency running status.When switching mechanism 34 is in dewatering state (position as shown in Figure 3), lock unit 3442 is driving
Under dynamic portion 3441 drives, side is coordinated with the first rotor retainer ring 342, and opposite side is coordinated with the second rotor retaining ring 343, so as to
So that the relative position of the first rotor portion 32 and the second rotor portions 33 is fixed (can be synchronized with the movement or synchronously not move), this
When, the first rotor portion 32 and the second rotor portions 33 are formed as the rotor of the rotation of relative stator 31 and can drive impeller 400 and interior
200 synchronous rotaries of bucket, so that the equivalent number of pole-pairs of motor 300 is relatively low, and then realize the little torque high-speed and high-efficiency of washing machine S
Running status.
Alternatively, drive division 3441 is the control coil for driving the slip of lock unit 3442 by electromagnetic induction.By driving
Dynamic portion 3441 is set to control the control coil that lock unit 3442 slides by electromagnetic induction, such that it is able to simplify motor 300
Internal wiring so that 300 overall structure of motor is simpler.
Alternatively, lock unit 3442, stator retainer ring 341, the first rotor retainer ring 342 and the second rotor retaining ring 343
On be respectively equipped with latch, when switching mechanism 34 is in washing state, the latch on lock unit 3442 respectively with stator retainer ring 341
On latch and the second rotor retaining ring 343 on latch engagement, switching mechanism 34 be in dewatering state when, on lock unit 3442
Latch engage with the latch on the latch in the first rotor retainer ring 342 and the second rotor retaining ring 343 respectively.
As shown in Figure 2 and Figure 5, lock unit 3442 is generally formed into columnar structured, columnar structured lock unit 3442
Inner and outer wall on be respectively equipped with latch, the inwall of the first rotor retainer ring 342 is provided with latch, the second rotor retaining ring
343 inwall is provided with latch, and the latch on 3442 outer wall of lock unit can be solid with the first rotor retainer ring 342 and the second rotor
Determine on the inwall of ring 343 latch engagement coordinate, the latch on 3442 inwall of lock unit can with 341 outer wall of stator retainer ring on
Latch coordinate, so as to using the mating reaction between latch, strengthen lock unit 3442 solid with stator retainer ring 341, the first rotor
Determine the connection reliability between ring 342 and the second rotor retaining ring 343, it is ensured that the normal operation of motor 300.
Wherein, the latch on lock unit 3442 is distributed on the outer peripheral face and inner peripheral surface of lock unit 3442, stator retainer ring
Latch on 341 is distributed on the outer peripheral face of stator retainer ring 341, and the latch in the first rotor retainer ring 342 is distributed in first
On the inner peripheral surface of rotor retaining ring 342, the latch on the second rotor retaining ring 343 is distributed in the interior of the second rotor retaining ring 343
On side face.
Specifically, be respectively equipped with latch on the inner peripheral surface and outer peripheral face of lock unit 3442, the first rotor retainer ring 342 it is interior
Side face is provided with latch, and the inner peripheral surface of the second rotor retaining ring 343 is provided with latch, the latch energy on 3442 outer peripheral face of lock unit
It is enough to engage cooperation with the latch on the inner peripheral surface of the first rotor retainer ring 342 and the second rotor retaining ring 343, in lock unit 3442
Latch on side face can be coordinated with the latch on 341 outer peripheral face of stator retainer ring, so as to using the mating reaction between latch, increase
Strong connection between lock unit 3442 and stator retainer ring 341, the first rotor retainer ring 342 and the second rotor retaining ring 343 can
By property, it is ensured that the normal operation of motor 300.
When switching mechanism 34 be in washing state (position as shown in Figure 2) when, the latch on 3442 outer peripheral face of lock unit with
Latch engagement on second rotor retaining ring, 343 inner peripheral surface, outside the latch on 3442 inner peripheral surface of lock unit and stator retainer ring 341
Latch engagement on side face, so that ensure being connected for stator 31 and the second rotor portions 33, stator 31 and the second rotor portions 33
It is synchronous not rotate；When switching mechanism 34 is in dewatering state (position as shown in Figure 5), the latch on 3442 outer peripheral face of lock unit
Engage with the latch on 343 inner peripheral surface of the first rotor retainer ring 342 and the second rotor retaining ring simultaneously, so as to ensure the first rotor
Portion 32 is connected with the second rotor portions 33, and the first rotor portion 32 can be synchronized with the movement with the second rotor portions 33 or synchronous not transport
It is dynamic.
Additionally, motor 300 also includes stator cage 351, outer rotor casing 352 and internal rotor casing 353, stator cage
351 are arranged in outer barrel 100, and stator 31 is connected with stator cage 351, stator 31, the first rotor portion 32 and the second rotor
Portion 33 is each provided in outer rotor casing 352, and the first rotor portion 32 is connected and outer rotor casing 352 with outer rotor casing 352
Be connected with interior bucket 200 by first rotating shaft 37, internal rotor casing 353 be located in outer rotor casing 352 and with the second rotor
Portion 33 is connected, and internal rotor casing 353 is connected with interior bucket 200 by the second rotating shaft 38.Stator retainer ring 341 and stator
Casing 351 is connected, and the first rotor retainer ring 342 is connected with outer rotor casing 352, the second rotor retaining ring 343 with
Second rotor portions 33 are connected.
Specifically, as shown in Fig. 2 outer rotor casing 352 is generally formed into the unlimited cylinder-like structure in one end (such as lower end)
And be fixedly connected with outer barrel 100, the first rotor portion 32, the second rotor portions 33 and stator 31 are along the radial direction side of outer rotor casing 352
It is spaced to ecto-entad successively and is opened in outer rotor casing 352 and is coaxially disposed, so as to passes through outer rotor casing 352 to motor
300 inner members are protected, it is to avoid accidental injury.
Meanwhile, between stator 31 and stator cage 351, the first rotor portion 32 and the impeller 400 being attached thereto and outer rotor
Between casing 352, between the second rotor portions 33 and internal rotor casing 353, stator retainer ring 341 and 351 transmission of stator cage
Between, between the first rotor retainer ring 342 and outer rotor casing 352 and the second rotor retaining ring 343 and the second rotor portions 33 and
Using being connected between internal rotor casing 353, that is to say, that between stator 31 and stator cage 351, the first rotor portion 32
And the impeller 400 that is attached thereto and outer rotor casing 352 between, between the second rotor portions 33 and internal rotor casing 353, stator it is solid
Determine between ring 341 and the transmission of stator cage 351, between the first rotor retainer ring 342 and outer rotor casing 352 and the second rotor
Retainer ring 343 be synchronized with the movement with the second rotor portions 33 and internal rotor casing 353 respectively or it is synchronous do not move, for example, in this enforcement
In example, without relative motion between stator 31 and stator cage 351, stator cage 351 is in stationary state, then stator 31 is also at
Stationary state.
Advantageously, for further save space and the driving that do not affect to impeller 400 and interior bucket 200, the second rotating shaft 38
For hollow axle, first rotating shaft 37 is to be located at the solid shafting being spaced apart in the second rotating shaft 38 and with the second rotating shaft 38.
Wherein, coordinated by bearing 361 between internal rotor casing 353 and the second rotating shaft 38, first rotating shaft 37 and second turn
Coordinated by oiliness bearing 362 between axle 38.
Specifically, as shown in Fig. 2 the inner peripheral surface of internal rotor casing 353 is coordinated with 361 outer peripheral face of bearing, the second rotating shaft 38
The inner peripheral surface of outer peripheral face and bearing 361 coordinate.The inner peripheral surface of the second rotating shaft 38 is coordinated with 362 outer peripheral face of oiliness bearing, and first
The outer peripheral face of rotating shaft 37 is coordinated with the inner peripheral surface of oiliness bearing 362
Wherein, stator 31 includes stator conducting magnet core 311 and stator winding 312, and stator winding 312 is wound on stator magnetic conduction
On iron core 311.
See figures.1.and.2, stator 31 is mainly made up of stator conducting magnet core 311 and stator winding 312, stator magnetic conduction ferrum
Core 311 is made up of high permeability material, and high permeability material can be the materials such as stalloy, cobalt steels piece, permalloy, SMC.Stator around
Group 312 is wound on stator conducting magnet core 311, and stator winding 312 can be concentratred winding, or Distributed Winding, also
It is to say that the span of stator winding 312 can be 1 or other integers, meanwhile, the number of phases of stator winding 312 can be with single-phase or many
Phase, so that stator winding 312 is by AC electric currents, produces magnetic field.What deserves to be explained is, stator conducting magnet core 311 it is concrete
Material, 312 winding configuration of stator winding, and the number of phases of stator winding 312 can make adaptation according to actual design requirement
The selection of property, to ensure torque and the power density of motor 300.
Wherein, the first rotor portion 32 includes rotor conducting magnet core 321 and permanent magnet 322, and permanent magnet 322 is located at rotor magnetic conduction
On iron core 321.
Specifically, as shown in figure 1, the first rotor portion 32 is mainly made up of rotor conducting magnet core 321 and permanent magnet 322, forever
Magnet 322 is located on rotor conducting magnet core 321 and the circumferential direction along rotor conducting magnet core 321 is evenly arranged.Rotor magnetic conduction ferrum
Core 321 is made up of high permeability material, and high permeability material can be the materials such as stalloy, cobalt steels piece, permalloy, SMC.Permanent magnet
322 are mainly made up of permanent magnet material, and permanent magnet material can be the materials such as neodymium iron boron, ferrite, aluminum nickel cobalt, SmCo.Permanent magnet 322
Can be realized and rotor conducting magnet core by the mode such as surface mount (SPM), built-in (IPM), surface setting-in (Inset PM)
321 combination, for example, in an example of the present invention, permanent magnet 322 is embedding in 322 polarity identical mode of adjacent permanent magnet
Enter rotor conducting magnet core 321, so as to ensure the Stability Analysis of Structures in the first rotor portion 32, and then produce excitation field.
Alternatively, permanent magnet 322 is generally formed into strip structure, and the permanent magnet 322 of multiple strips is with adjacent permanent magnet
Circumferentially direction is spaced apart embedded rotor conducting magnet core 321 to 322 polarity identical mode of body, and the permanent magnet 322 of strip
Minor face radially arranges (as shown in Figure 3 and Figure 6).Certainly, the shape of permanent magnet 322 can also be arc shape, multiple arcs
In 322 polarity identical mode of adjacent permanent magnet, circumferentially direction is spaced apart embedded rotor magnetic conduction ferrum to the permanent magnet 322 of shape structure
Core 321, and the arc-shaped side of the permanent magnet 322 of arc shape circumferentially direction arrangement.What deserves to be explained is, those skilled in the art can
To change the quantity of permanent magnet 322, shape and arrangement according to actual design demand, with adjust equivalent rotor number of pole-pairs and
The electric frequency of work so that when output mechanical separator speed is identical, can be by the different running statuses of switch motor 300 (as washed
State and dewatering state) realize the pole-changing variable-pressure operation of washing machine S.
Wherein, the second rotor portions 33 include multiple conducting magnet cores 331 and multiple non-magnetic spacer blocks 332, multiple magnetic conduction ferrum
Core 331 and multiple non-magnetic spacer blocks 332 are alternately arranged along the circumference of motor 300.
With reference to Fig. 3, the second rotor portions 33 are mainly made up of multiple conducting magnet cores 331 and multiple non-magnetic spacer blocks 332, many
Along the circumferential alternate intervals of motor 300, individual conducting magnet core 331 and multiple non-magnetic spacer blocks 332 arrange that conducting magnet core 331 is by height
Permeability magnetic material is constituted, and high permeability material can be the materials such as stalloy, cobalt steels piece, permalloy, SMC.Non-magnetic spacer block 332
It is made up of non-magnet material, non-magnet material can be the materials such as air, plastics, high molecular polymer, non-magnetic metal.
Further, the number of pole-pairs of the rotating excitation field that stator 31 is produced is ps, the excitation field that the first rotor portion 32 produces
Number of pole-pairs be pf, the quantity of conducting magnet core 331 is pr, wherein, pr=| ps±pf|。
Specifically, stator 31 is driven by alternating current, and produces number of pole-pairs for psRotating excitation field, the first rotor portion 32
Generation number of pole-pairs is pfExcitation field, the quantity of conducting magnet core 331 is pr, meanwhile, the quantity of conducting magnet core 331 is equal to rotation
The number of pole-pairs sum of the number of pole-pairs in magnetic field and excitation field or the difference between the two, so as to ensure motor 300 in different running statuses
Under normally can run.
Rotary drum washing machine S100 according to embodiments of the present invention is entered by multiple specific embodiments below with reference to Fig. 1-Fig. 6
Row is described in detail.
As shown in Figure 1 to Figure 3, in the embodiment of the present invention, rotary drum washing machine S primary structures include outer barrel 100, interior bucket 200,
Impeller 400, and the pole-changing for driving becomes the critical piece such as Medium-voltage Motor 300, wherein the 100 of washing machine S outer barrels are fixed on and wash
On the casing of clothing machine S.Pole-changing becomes Medium-voltage Motor 300 and includes stator 31, the first rotor portion 32, the second rotor portions 33, switching mechanism 34
Deng critical piece.Detailed, the stator conducting magnet core 311 of the stator 31 comprising high permeability material composition of motor 300 is wound on which
On stator winding 312, stator cage 351 constitutes, and wherein stator cage 351 is bolted on washing machine S outer barrels 100
On.In the present embodiment, stator winding 312 is three-phase symmetric winding, and coil spread is 1, is produced after passing to three-phase symmetrical electric current
The rotating excitation field of number of pole-pairs ps=4.The rotor conducting magnet core 321 that the first rotor portion 32 is constituted comprising high permeability material, and it is interior
The permanent magnet 322 of formula arrangement is put, permanent magnet 322 is circumferentially arranged in 322 polarity identical mode of adjacent permanent magnet, it is extremely right to produce
The permanent magnetic field of number pf=16, conducting magnet core 331 and non-magnetic spacer block that the second rotor portions 33 are constituted comprising high permeability material
332 are constituted, block number pr=20 of conducting magnet core 331.The first rotor portion 32 drives impeller 400 to rotate by first rotating shaft 37.Cut
Converting mechanism 34 includes driving coil, stator retainer ring 341, the second rotor retaining ring 343, the first rotor retainer ring 342, lock unit
3442 grade critical pieces are constituted.Lock unit 3442 is radially inner side and outside all toothed gear rings, 343 He of the second rotor retaining ring
The first rotor retainer ring 342 is radially inner side toothed gear ring, and stator retainer ring 341 is radial outside toothed gear ring.
In the washing condition, driving coil drives lock unit 3442 to move to the position shown in Fig. 1 and Fig. 2 to rotary drum washing machine S
Put, engage stator retainer ring 341 and the second rotor retaining ring 343, so that the second rotor portions 33 and stator 31 keep solid
Fixed relative position fills, and serve as the stator that pole-changing becomes Medium-voltage Motor 30, and in this case, the first rotor portion 32 is used as motor 300
Unique rotary part drive 400 low speed high torque of the impeller washing operation of washing machine S, now, the equivalent operation pole of motor 300
Logarithm is pr=16, and the work electricity frequency washed under rotating speed in 120rpm is 35Hz.Rotary drum washing machine S is in dehydrating operation state
Under, driving coil drives lock unit 3442 to run to the position shown in Fig. 4 and Fig. 5, makes the second rotor retaining ring 343 and first turn
Sub- retainer ring 342 is engaged, and in this case, stator 31 is fixed component, and the second rotor portions 33 and the first rotor portion 32 are locked
Relatively fixed position is kept to become the rotor of Medium-voltage Motor 30 as pole-changing, 200 high speed dewatering of impeller 400 and interior bucket is driven together
Operation, now, equivalent operation number of pole-pairs ps=4 of motor 300, under 800rpm dehydrating speeds work electricity frequency be
53.8Hz.The ratio of dehydration and the bucket speed washed is 6.66, but the work electricity frequency ratio of motor 300 is only when being dehydrated and washing
The whole function consumption of 1.68, it is ensured that motor 300 is operated between high efficient area under two states, washing machine S significantly declines.
Washing machine S according to embodiments of the present invention, employs and the diverse operation principle of existing magneto, in phase
With volume under torque density have a significant increase, thus high torque (HT) direct drive can be realized and without using planetary gear speed-reduction
Increase square.Also, by stator 31 and the first rotor portion 32, the selection of 33 number of poles of the second rotor portions, motor 300 can be caused to exist
The operation of big torque low-speed high-efficiency rate is realized by big work number of poles under the washing state, under the dewatering state by compared with
Low work number of pole-pairs rate realizes that high speed, high efficiency runs, therefore washing machine 300 realizes that in the state of difference high energy efficiency is transported
OK.Further, since employing new principle motor as power source so that the dynamic structure overall volume is little, compact conformation, energy
It is enough to reduce the volume of the whole machines of washing machine S on the premise of constant in washing clothes weight, and due to eliminating The gear deceleration knot
Structure, the dynamical system efficiency are obviously improved, and noise is decreased obviously.
Other of washing machine S according to embodiments of the present invention are constituted and are operated for those of ordinary skills
All it is known, is not detailed herein.
In describing the invention, it is to be understood that term " " center ", "left", "right", " vertical ", " level ",
The orientation of the instruction such as " top ", " bottom " " interior ", " outward " or position relationship be based on orientation shown in the drawings or position relationship, be only for
It is easy to the description present invention and simplifies description, rather than indicates or imply that the device or element of indication there must be specific side
Position, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or it is integral；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to concrete feelings
Condition understands above-mentioned term concrete meaning in the present invention.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
Example ", or the description of " some examples " etc. mean specific features with reference to the embodiment or example description, structure, material or spy
Point is contained at least one embodiment or 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 with office
What combined in one or more embodiments or example in an appropriate manner.Additionally, this can be said by those skilled in the art
Different embodiments or example described in bright book are engaged and are combined.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (14)
1. a kind of washing machine, it is characterised in that include：
Outer barrel；
Interior bucket, the interior bucket are rotatably provided in said tub；
Impeller, the impeller are located in the interior bucket in which can revolve ground；
Motor, the motor include the stator that can be rotated against respectively, the first rotor portion, the second rotor portions and in washing state
The switchable switching mechanism and dewatering state between, the stator are arranged in said tub and relative position with said tub
Fixed, the first rotor portion is connected with the impeller, and second rotor portions are connected with the interior bucket,
When the switching mechanism is in the washing state, the relative position of the stator and second rotor portions, institute are fixed
State the first rotor portion and serve as rotor for driving impeller rotation,
When the switching mechanism is in the dewatering state, the relative position in the first rotor portion and second rotor portions is fixed
Put, the first rotor portion and second rotor portions are served as driving turning for the interior bucket and the impeller synchronous rotary
Son.
2. washing machine according to claim 1, it is characterised in that the first rotor portion, second rotor portions and institute
State radial direction from outside to inside successively interval setting of the stator along the motor.
3. washing machine according to claim 1, it is characterised in that the switching mechanism includes：
Stator retainer ring, the relative position of the stator retainer ring and the stator are fixed；
The first rotor retainer ring, the relative position in the first rotor retainer ring and the first rotor portion are fixed；
Second rotor retaining ring, the relative position of second rotor retaining ring and second rotor portions are fixed；
Drive division and lock unit, the lock unit are driven by the drive division and are slided,
When the switching mechanism is in the washing state, the lock unit is fixed with described respectively under the driving of the drive division
Sub- retainer ring and second rotor retaining ring coordinate,
When the switching mechanism is in the dewatering state, the lock unit is under the driving of the drive division respectively with described the
One rotor retaining ring and second rotor retaining ring coordinate.
4. washing machine according to claim 3, it is characterised in that the drive division be driven by electromagnetic induction it is described same
The control coil that step device slides.
5. washing machine according to claim 3, it is characterised in that the lock unit, the stator retainer ring, described first
Latch is respectively equipped with rotor retaining ring and second rotor retaining ring,
The switching mechanism be in the washing state when, the latch on the lock unit respectively with the stator retainer ring on
Latch engagement on latch and second rotor retaining ring,
The switching mechanism be in the dewatering state when, the latch on the lock unit respectively with the first rotor retainer ring
On latch and second rotor retaining ring on latch engagement.
6. washing machine according to claim 5, it is characterised in that the latch on the lock unit is distributed in the lock unit
Outer peripheral face and inner peripheral surface on, the latch in the stator retainer ring is distributed on the outer peripheral face of the stator retainer ring, described
Latch in the first rotor retainer ring is distributed on the inner peripheral surface of the first rotor retainer ring, on second rotor retaining ring
Latch be distributed on the inner peripheral surface of second rotor retaining ring.
7. the washing machine according to any one of claim 3-6, it is characterised in that the motor also includes：
Stator cage, the stator cage are arranged in said tub, and the stator is connected with the stator cage；
Outer rotor casing, the stator, the first rotor portion and second rotor portions are each provided in the outer rotor casing,
The first rotor portion is connected with the outer rotor casing and the outer rotor casing is by first rotating shaft and the impeller
It is connected；
Internal rotor casing, the internal rotor casing are located in the outer rotor casing, the internal rotor casing with described second turn
Sub-portion is connected and the internal rotor casing is connected with the interior bucket by the second rotating shaft；
The stator retainer ring is connected with the stator cage, and the first rotor retainer ring is passed with the outer rotor casing
Dynamic connection, second rotor retaining ring are connected with second rotor portions.
8. washing machine according to claim 7, it is characterised in that second rotating shaft is hollow axle, the first rotating shaft
For the solid shafting being located in second rotating shaft and be spaced apart with second rotating shaft.
9. washing machine according to claim 8, it is characterised in that pass through between the first rotating shaft and second rotating shaft
Oiliness bearing coordinates.
10. washing machine according to claim 7, it is characterised in that lead between the stator cage and second rotating shaft
Cross bearing fit.
11. washing machinees according to claim 1, it is characterised in that the stator includes：
Stator conducting magnet core；
Stator winding, the stator winding are wound on the stator conducting magnet core.
12. washing machinees according to claim 11, it is characterised in that the first rotor portion includes：
Rotor conducting magnet core；
Permanent magnet, the permanent magnet are located on the rotor conducting magnet core.
13. washing machinees according to claim 12, it is characterised in that second rotor portions include：
Multiple conducting magnet cores；
Multiple non-magnetic spacer blocks, multiple conducting magnet cores and multiple non-magnetic spacer blocks are handed over along the circumference of the motor
For arrangement.
14. washing machinees according to claim 13, it is characterised in that the number of pole-pairs of the rotating excitation field that the stator is produced is
ps, the number of pole-pairs of the permanent magnetic field that the first rotor portion produces is pf, the quantity of the conducting magnet core is pr, wherein, pr=| ps
±pf|。
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610943061.0A CN106521882B (en) | 2016-10-31 | 2016-10-31 | Washing machine |
| PCT/CN2016/109544 WO2018076481A1 (en) | 2016-10-31 | 2016-12-12 | Washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610943061.0A CN106521882B (en) | 2016-10-31 | 2016-10-31 | Washing machine |
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| CN106521882A true CN106521882A (en) | 2017-03-22 |
| CN106521882B CN106521882B (en) | 2019-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610943061.0A Active CN106521882B (en) | 2016-10-31 | 2016-10-31 | Washing machine |
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| WO2018076478A1 (en) * | 2016-10-31 | 2018-05-03 | 广东威灵电机制造有限公司 | Washing machine |
| CN110855040A (en) * | 2019-11-22 | 2020-02-28 | 奇瑞汽车股份有限公司 | Motor rotor structure and permanent magnet synchronous motor |
| WO2020207348A1 (en) * | 2019-04-08 | 2020-10-15 | 青岛海尔洗衣机有限公司 | Washing machine control method and washing machine |
| CN113774616A (en) * | 2020-05-22 | 2021-12-10 | 青岛海尔洗衣机有限公司 | Control method of washing machine |
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|---|---|
| CN106521882B (en) | 2019-04-19 |
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