CN101657949B - Drum type washing machine - Google Patents
Drum type washing machine Download PDFInfo
- Publication number
- CN101657949B CN101657949B CN2008800118557A CN200880011855A CN101657949B CN 101657949 B CN101657949 B CN 101657949B CN 2008800118557 A CN2008800118557 A CN 2008800118557A CN 200880011855 A CN200880011855 A CN 200880011855A CN 101657949 B CN101657949 B CN 101657949B
- Authority
- CN
- China
- Prior art keywords
- washing machine
- motor
- drum type
- outside
- type washing
- 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.)
- Expired - Fee Related
Links
Images
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
- D06F37/304—Arrangements or adaptations of electric motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
- H02K1/2787—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/2789—Outer rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/279—Magnets embedded in the magnetic core
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
- H02K21/16—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
- H02K21/222—Flywheel magnetos
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Textile Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
Provided is a drum type direct-drive washing machine comprising a washing machine casing, a rotary drum having a drum rotating axis in a horizontal direction or an inclined direction, and a motor for driving the rotary drum. The motor includes a stator having a coil wound in a toroidal winding form and a first mold resin, and a twin type rotor having an external rotor, an internal rotor and a second mold resin molding the rotors integrally.
Description
Technical field
The present invention relates to possess in the horizontal direction or incline direction has the swing roller of rotary middle spindle and drives the drum type washing machine of the direct kind of drive of the motor of this swing roller.
Background technology
In recent years, the drum type washing machine of the direct kind of drive of additional drying function becomes main flow in the single container washing and extracting machine.Because the motor of swing roller that drives this washing machine is through the direct driven in rotation cylinder of transmission device, the high speed low torque (more than the 1000rpm) when low-speed high-torque when therefore needing to realize washing simultaneously (10rpm to 100rpm, more than the 10Nm) and dehydration.In addition because when washing speed very low, therefore need to reduce the cogging torque that the vibrating noise of washing machine is had the motor of very big influence.
Technology, known patent documentation 1 and patent documentation 2 described use in washing machine motor as the motor of realizing the low-speed high-torque that output is such.The said use in washing machine motor of these patent documentations possesses stator and is configured in the rotor of stator periphery.But, of patent documentation 1, for making the big torque of motor output that possesses unique stator and unique rotor, must increase coiling on stator the coil amount or increase the magnet strength of rotor.Therefore, produce overall volume and become big problem.In addition, patent documentation 1 described use in washing machine motor possesses the coil of stator through concentrating the winding mode to wind the line.Therefore, compare with the motor that possesses the coil that winds the line through the distributed winding mode, it is big that radial load becomes.The problem that noise and vibration increase when thus, producing driving.
So for removing the problems referred to above, people propose like patent documentation 2 described motor.These patent documentation 2 described motor possess: the outer peripheral face that the inner peripheral surface that has on tooth hollow cylindrical stator through concentrating the coil that the winding mode winds the line, a relative stator has the inboard rotor of same gap configuration, a relative stator has the outside rotors of same gap configuration.The power that patent documentation 2 said motor with this structure can utilize the magnetic flux of power that the magnetic flux of inboard rotor produces and outside rotors to produce.Therefore, it is big that power density becomes, can the big torque of output when maintenance is small-sized.
But in patent documentation 2 described motor, because possess the coil to concentrate the winding mode to wind the line, it is big that radial load becomes.The problem that vibration and noise increase when thus, producing driving.
The drum type washing machine that is equipped with like this like patent documentation 1 and patent documentation 2 described use in washing machine motor has the problem that is difficult to realize simultaneously high capacity, miniaturization, quietization.
Patent documentation 1: TOHKEMY 2007-089282 communique
Patent documentation 2: Japan special table 2005-521378 communique
Summary of the invention
Drum type washing machine of the present invention has following structure.Have the washing machine shell that is used to take out the peristome of putting into washings, with respect to this housing in the horizontal direction or have on the incline direction cylinder rotating shaft swing roller, drive the motor of this swing roller, be the washing machine of the direct drive mode that directly links of cylinder rotating shaft and motor reel.
The stator of this motor comprises: the ring-type stator yoke; From this stator yoke to the outstanding a plurality of outsides tooth of peripheral direction, identical with this outside number of teeth amount, from the outstanding a plurality of inner tines of the inside Zhou Fangxiang of stator yoke, be formed in a plurality of outer side slots between tooth outside each, be formed in a plurality of inner side slots between each inner tines.This stator also comprises: stator yoke between outer side slot and inner side slot of three-phase star or triangle tie lines, with the coil of Circular Winding form coiling, first moulded resin of integrally formed stator yoke, outer side slot, inner side slot and coil.
In addition; The rotor of this motor is the amphistyly rotor; Comprise: the outside rotors that is oppositely arranged across space and the outside tooth of regulation; Across the inboard rotor that space and the inner tines of regulation is oppositely arranged, second moulded resin of integrally formed outside rotors and inboard rotor is incorporated into the motor reel of outside rotors and inboard rotor.
The drum type washing machine of the present invention of this structure can expand washing capacity to the limit when maintenance is small-sized, and can reduce vibration, noise, realizes the solemn silence property of anti-running at night.In addition, waterproof, antidrip performance are improved, can realize the washing machine of high reliability.
Description of drawings
Fig. 1 is the sectional view of the drum type washing machine that relates to of execution mode of the present invention.
Fig. 2 is the stereogram of the motor 5 of the drum type washing machine that relates to of execution mode of the present invention.
Fig. 3 is that stereogram is used in the stator of the same motor of exploded representation 5 and the explanation of rotor.
Fig. 4 is that stereogram is used in the same explanation of seeing from different directions.
Fig. 5 is the sectional view of the same motor 5.
Fig. 6 is the sectional view in 6-6 cross section in the presentation graphs 5.
Fig. 7 is the chart of the relation of the same motor 5 mesostyle end width of expression and cogging torque.
Fig. 8 is the position of rotation (electrical degree) of the same motor 5 rotors of expression and the chart of the relation of induced voltage.
Fig. 9 is the position of rotation (electrical degree) of the same motor 5 rotors of expression and the chart of the relation of radial load.
Figure 10 is the position of rotation (electrical degree) of the same motor 5 rotors of expression and the chart of the relation of cogging torque.
Figure 11 is a chart of representing motor power (output) density in the same motor 5 by the motor kind.
Figure 12 is the chart of the relation of number of poles and torque constant in the same motor 5 of expression.
Figure 13 is the figure of the situation of the electric current schematically representing in the same motor 5 to flow in the coil 15.
Symbol description:
1: washing machine shell
1a: peristome
2: swing roller
3: steel ladle
4: the cylinder rotating shaft
5: motor
9: lid
10: stator
11: stator core
12: outside tooth
13: inner tines
14: stator yoke
15: coil
16: outer side slot
17: inner side slot
18: through hole
20: inboard rotor
21: the inboard rotor yoke
22: inboard permanent magnet
30: outside rotors
31: the outside rotors yoke
32: outside permanent magnet
41: the first
42: the second
51: the first moulded resins
52: the second moulded resins
60: installation portion
61: motor reel
62: reinforcement
64: the wind hole
65: protuberance
71: the straight line that connects direction of rotation central authorities with the direction of rotation central authorities of inner tines of outside tooth
72: the center circular arc of stator yoke
Embodiment
Below, with reference to accompanying drawing execution mode of the present invention is described.Fig. 1 is the sectional view of the drum type washing machine that relates to of execution mode of the present invention.
Have round-ended cylinder shape steel ladle 3 with the state configuration that has a down dip from front one side of main body 1 towards the back side one side direction in the washing machine shell 1 of this drum type washing machine.This steel ladle 3 sideway swivel within it is supported with round-ended cylinder shape swing roller 2 freely, and one side direction has a down dip towards the back side from front one side of washing machine shell 1 to make its cylinder rotating shaft 4.
A side is formed with and is used to take out the peristome 1a that puts into washings in the front of washing machine shell 1.And peristome 1a is provided with the lid 9 that is made up of materials such as glass that is used for switch peristome 1a.
In the bottom outside of steel ladle 3, the motor reel 61 of motor 5 directly be attached at the same axle of the cylinder rotating shaft of swing roller 24 on.Can control rotary speed, the direction of rotation of swing roller 2 through this motor 5.This motor 5 is fixed on the steel ladle 3 through the installing mechanisms such as screw that do not indicate among installation portion 60 (afterwards stating) the utilization figure that is formed on motor 5 peripheral parts.
Fig. 2 is the stereogram of the motor 5 of the drum type washing machine that relates to of execution mode of the present invention.In addition, Fig. 3 and Fig. 4 are that stereogram is used in the stator 10 of this motor 5 of exploded representation and the explanation that comprises the amphistyly rotor of inboard rotor 20 and outside rotors 30.Fig. 3 and Fig. 4 represent the stereogram seen from different directions.
This motor 5 is by stator 10, with the internal side diameter opposed inside rotor 20 of this stator 10, constitute with outside diameter opposite external side rotor 30.
Be formed with a plurality of wind hole 64 that connects along motor reel 61 directions on second moulded resin 52 of rotor.In addition, on part relative on the direction of motor reel 61, be provided with a plurality of protuberances 65 at second moulded resin 52 with stator 10.Therefore, when inboard rotor 20 and outside rotors 30 rotations, the heat that produces from stator 10 is stirred.Then, between stator 10, inboard rotor 20 and outside rotors 30, produce hot blast to direction of rotation.This hot blast outwards flows out from wind hole 64, and the heat in the motor 5 is discharged from.In addition, a side is provided with a plurality of reinforcements 62 at the back side of second moulded resin 52.Therefore, can when reducing the moulded resin amount, guarantee necessary strength.
Fig. 5 is the sectional view of motor 5, and Fig. 6 is the sectional view in 6-6 cross section in the presentation graphs 5.The stator core 11 that constitutes stator 10 comprises the stator yoke 14 of ring-type roughly, from this stator yoke 14 to the outstanding outside tooth 12 of peripheral direction, identical with outside tooth number inner tines 13 of giving prominence to from stator yoke 14 inside Zhou Fangxiang.Stator core 11 also forms outer side slot 16 between each outside tooth 12, between each inner tines 13, form inner side slot 17.Then, stator 10 also on the stator yoke 14 of 17 of outer side slot 16 and inner side slots to concentrate a plurality of coils 15 of winding mode spiral by the Circular Winding mode of three-phase star or triangle tie lines.
Here, the motor 5 that this execution mode relates to, the number of poles of the number of poles of inboard rotor 20 and outside rotors 30 all are 20 utmost points, and the groove number all is 12 grooves.Like this, through the combination of 20 utmost points, 12 grooves,, can realize being configured to the identical effect of distributed winding (with reference to Fig. 8) with winding like what detail at the back.
As stated, this stator 10 is behind coiled wire-wound coil 15, and is integrally formed by first moulded resin 51.This be for coil 15 is fixed on the stator core, damp proof, antidrip.Particularly, because this motor 5 is used for washing machine, it still is important promoting damp proof, antidrip performance.In addition, under like this through the integrally formed situation of first moulded resin 51, these moulded resin 51 absorbed oscillations, the whole vibration of washing machine, the effect of noise also can be expected to be reduced.
On the stator yoke 14 of stator core 11, form a plurality of through holes 18 that connect vertically.Then; Through the integrally formed coil 15 of first moulded resin 51 time, first 41 (paper upside among Fig. 6) of outer side slot 16, inner side slot 17, stator yoke 14, second 42 (paper downside among Fig. 6) of stator yoke 14 and through hole 18 are molded resin 51 and fill.By this structure, first moulded resin 51 that first moulded resin 51 on second 42 of first moulded resin 51 on first 41 of stator yoke 14 and stator yoke 14 is filled in through hole 18 links.Therefore, even first moulded resin 51 on first moulded resin 51 for motor miniaturization on thin and thick ground forms first 41 and second 42 because the moulded resin 51 that is filled in the through hole 18 is linking, thereby can prevent to peel off.In addition, utilize first moulded resin 51 on second 42, to form installation portion 60.
This through hole 18 is located on the intersection point of the direction of rotation central authorities of the direction of rotation central authorities that connect outside tooth 12 and inner tines 13 and the straight line 71 through pivot and the center circular arc 72 of stator yoke 14.The cross sectional shape of this through hole 18 is preferably circle or ellipse.Because if this shape, the flowability of molded resin material can be better.
In addition, the radical length of the radical length relative stator yoke 14 of through hole 18 is preferably 0.5 ± 10%.This be because, if big, then have stator yoke 14 that possibility that magnetic saturation reduce motor torques takes place than this numerical value, and if littler than this numerical value, the flowability of moulded resin deterioration when then being shaped, intensity reduction.In addition, the cross sectional shape of this through hole 18 is not limited to circle or ellipse, can adopt quadrangle, rectangle, triangle etc. aptly.
First moulded resin 51 and second moulded resin 52 preferably contain the unsaturated polyester resin of filler.This be because the flowability when being shaped be shaped after excellent strength.
Fig. 7 is the chart of the relation of expression crown end width and cogging torque.Dotted line among the figure representes to suppose the crown end width of inner tines 13 under the situation that only has inboard rotor 20 and the relation of cogging torque.In addition, solid line representes to suppose the crown end width of outside tooth 12 under the situation that only has outside rotors 30 and the relation of cogging torque.
Can know from Fig. 7, under the situation that makes the cogging torque minimum, must increase crown end width.Particularly, among Fig. 7, near the 14.5deg with 19.3deg near, cogging torque reduces.In this case, because the length of channel opening (slot open) (Breadth Maximum portion and interval adjacent teeth of tooth) diminishes, also reduce so be filled in the amount of first moulded resin in the slot-open-section.But, in this embodiment, first moulded resin 51 on first moulded resin 51 on first moulded resin 51 of filling in a plurality of through holes 18 that connect vertically in the stator yoke 14 links first 41 and second 42.Thus, reduce, also can realize the firm bonding force of 51 pairs of stator cores 11 of first moulded resin even be filled in the amount of first moulded resin 51 of slot-open-section.
Relatively dispose outside rotors 30 across voids and outside tooth 12.Likewise, relatively dispose inboard rotor 20 across voids and inner tines 13.
Same, inboard rotor 20 possesses inboard rotor yoke 21 and is embedded in a plurality of inboard permanent magnet 22 in the inboard rotor yoke 21.Inboard rotor yoke 21, range upon range of have an electromagnetic steel plate that strikes out the regulation shape, constitutes magnetic circuit.In addition, outside rotors 30 and inboard rotor 20 do not possess rotor field spider separately.Therefore, can be in the light-weighted while, when reducing worker.In addition, can cover the volume part of support with second moulded resin 52, can absorbed oscillation.
In addition, outside permanent magnet 32 and inboard permanent magnet 22 are imbedded respectively in the rotor yoke separately, describe as so-called magnet baried type, but also can make any become the so-called surperficial magnet type on the surface that is arranged on rotor yoke.Just, in order to apply flexibly reluctance torque, realize more high torque (HT), high output, need making wherein, any is the magnet baried type.
As stated, outside rotors 30 utilizes second moulded resin 52 in the ester moulding mould, to insert integrally formed with inboard rotor 20.Then, be attached at integratedly on the motor reel 61.Through being led to, coil 15 goes up predetermined electric current, outside rotors 30 and the rotation of inboard rotor 20 one.Through the integrative-structure of such outside rotors 30 with inboard rotor 20, this motor 5 is compared with general inner-rotor type motor or outer rotor type motor, can realize high torque (HT), high output.
Fig. 8 is the position of rotation (electrical degree) of expression rotor and the chart of the relation of induced voltage.The result that the rotor that this Fig. 8 representes to use groove to count the combination that concerns S: P=3: 2N-1 (but, removing the situation that 2N-1 is 3 multiple) of S and number of poles P experimentizes.
From this Fig. 8, can confirm, when S: P=3: 2N-1 (but, removing 2N-1 and be the situation of 3 multiple), for same roughly sinusoidal wave of the situation of the coiling of distributed winding mode.Like this, because induction voltage waveform becomes sine wave, the identical ground of situation with the distributed winding mode can suppress the noise and the vibration of motor 5.
Here, under the situation of S: P=3: 2N-1 (but, removing 2N-1 and be the situation of 3 multiple), the same roughly sinusoidal wave reason of situation that becomes with the coiling of distributed winding mode is described.
Figure 13 is the figure that schematically representes the situation of electric current mobile in the coil 15.The order that coil 15 is pressed U phase, V phase, W phase is spiral successively.In addition, flow inversion electric current in the coil 15 of spiral on each adjacent slot.That is, in certain U phase coil 15, flow under the situation of the electric current of inner side slot 17 outside side channel 16 directions mobile electric current in the V phase coil 15 of adjacency from outer side slot 16 inside side channel 17 directions.Flow from the electric current of inner side slot 17 outside side channel 16 directions like this, with in the W phase coil 15 of these V phase coil 15 adjacency.
Since such structure, the reciprocal electric current of flowing phase in certain U phase coil 15 and the next U phase coil 15.Therefore, the simulation flows has the electric current shown in the dotted line.Like this, the flow of current of this dotted line is identical with the flow of current of distributed winding.Therefore, flow of current is identical with the situation that the distributed winding mode winds the line under the situation of S: P=3: 2N-1 (but, removing 2N-1 and be the situation of 3 multiple), becomes identical roughly sinusoidal wave of situation about winding the line with the distributed winding mode.
Fig. 9 is the position of rotation (electrical degree) of expression rotor and the chart of the relation of radial load.Solid line among this Fig. 9 is represented the motor (the duplex rotor type electric motor of Circular Winding mode) that this execution mode relates to.On the other hand, dotted line is represented distributed winding single rotor type motor.
Can know that from this Fig. 9 the duplex rotor type electric motor of Circular Winding mode is compared with distributed winding single rotor type motor, radial load is lower.Can think that this is because cancelling out each other of the vibration of utilization and inboard rotor and outside rotors can reduce radial load.
The effect that this radial load reduces is effective especially under the situation with the washing machine of the direct drive mode of the low speed rotation of 10rpm to 100rpm when washing.This be because, in order to become low speed rotation, and the influence that the noise and the vibration of washing machine is prone to slot effect.
Figure 10 is the figure of position of rotation (electrical degree) and the relation of cogging torque of rotor of the duplex rotor type electric motor of expression Circular Winding mode.During this was schemed, fine dotted line was represented the cogging torque by inboard rotor 20 generations, and fine line is represented the cogging torque by outside rotors 30 generations, and middle heavy line is represented the cogging torque of motor 5 integral body that these are synthetic.
Figure 11 is the figure that representes motor power (output) density by the motor kind.Here, power density refers to the output of motor unit volume.Among this Figure 11, A representes inboard single rotor type motor, and B representes outside single rotor type motor, and C representes to concentrate winding duplex rotor type electric motor, and D representes the Circular Winding duplex rotor type electric motor in this execution mode.In addition, white background! Bai order I) part represent the power density of inboard rotor, dashed area is represented the power density of outside rotors.
The power density that can know D from this Figure 11 is maximum.If D and A are compared, less because D compares the inner side slot area with A, the power density of inboard rotor is low.But because D possesses outside rotors, overall power density surpasses A.Can know that from this Figure 11 the power density of D is 1.9 times of A.
In addition, if D and B are compared, less because D compares the outer side slot area with B, the power density of outside rotors is low.But because D possesses inboard rotor, overall power density surpasses B.Can know that from this Figure 11 the power density of D is 1.5 times of B.
Thus, can know that the washing machine that has been suitable for the motor of D is compared with the washing machine of the motor that has been suitable for A, it is 1.9 times that washing capacity is increased.In addition, the washing machine that has been suitable for the motor of D is compared with the washing machine of the motor that has been suitable for B, and it is 1.5 times that washing capacity is increased.In other words, during the identical output of D, can make the volume miniaturization 50% of the volume ratio A of D, than the volume miniaturization 35% of B with A and B.
In addition, if D and C are compared, if the volume of rotor yoke is identical, the magnetic flux of the rotor yoke through D surpasses the magnetic flux of the rotor yoke of passing through C.Therefore, the overall power density of D surpasses C.Can know that from this Figure 11 the power density of D is 1.4 times of C.
Figure 12 is the figure of the relation of expression number of poles and torque constant.In this Figure 12, heavy line representes to have S: the experimental result of the motor of P=3: 2N-1 (removing N and be the situation of 3 multiple) relation.In addition, fine dotted line is represented the existing general (S: P=3: the 2N) experimental result of the motor of relation that has.In addition, fine line representes to have the above-mentioned experimental result of the motor of relation in addition.Can know to have S from this Figure 12: P=3: the motor of 2N-1 relation is particularly surpassing torque constant excellence under the situation of 20 utmost points.Especially, the groove of preferably representing in this execution mode is counted the combination of S=12, number of poles P=20, that is, and and S: P=3: 5 relation.
Above-described motor because possess has the stator of the coil that the Circular Winding mode winds the line and has outside rotors and the duplex rotor-type rotor of inboard rotor; So can when maintenance is small-sized, export bigger torque, and can reduce noise and the vibration when driving.In addition; Because possess first moulded resin of integrally formed stator yoke, outer side slot, inner side slot and coil, and possesses second moulded resin of integrally formed outside rotors and inboard rotor, so compare with using the molded situation of support; Can lightweight, in the time of can reducing worker.In addition, can use the volume part of moulded resin covering support, can absorbed oscillation.
In addition; On stator yoke, form a plurality of through holes that connect its both ends of the surface; Utilize stator with the integrally formed stator yoke of moulded resin, outer side slot, inner side slot, coil and through hole, the moulded resin of stator yoke both ends of the surface is linked by the moulded resin that is filled in the through hole.The moulded resin that thus, can prevent covering stator is peeled off from stator.
In addition, through making groove count S and number of poles P is the relation of S: P=3: 2N-1, induction voltage waveform becomes sinusoidal wave shape, therefore can suppress the noise and vibration of motor.
The drum type washing machine that is equipped with this motor can make washing capacity expand the limit to when maintenance is small-sized.In addition, can reduce vibration, noise, realize the solemn silence property of anti-running at night.In addition, cover the structure of motor major part, waterproof, antidrip performance are improved, can realize the washing machine of high reliability through using moulded resin.
Utilizability on the industry
The drum type washing machine that the present invention relates to is exported big torque when keeping small-sized and is reduced noise and the washing machine of vibration when driving, and is useful.
Claims (11)
1. drum type washing machine; Possess: have the washing machine shell that is used to take out the peristome of putting into washings, with respect to said washing machine shell in the horizontal direction or have on the incline direction cylinder rotating shaft swing roller, drive the motor of this swing roller, it is characterized in that:
Said drum type washing machine is the washing machine of the direct direct drive mode that links of motor reel of said cylinder rotating shaft and said motor,
Said motor possesses:
Stator; Comprise: the ring-type stator yoke; Be projected into a plurality of outsides tooth of peripheral direction from said stator yoke; Identical with said outside number of teeth amount, be projected into from said stator yoke in a plurality of inner tines of Zhou Fangxiang; Said stator yoke between said outer side slot and said inner side slot of a plurality of outer side slots that constitute between tooth in said each outside, a plurality of inner side slots that between said each inner tines, constitute, three-phase star or triangle tie lines, the coil that winds the line with the Circular Winding form, first moulded resin of integrally formed said stator yoke, said outer side slot, said inner side slot and said coil; And
The amphistyly rotor; Comprise: the outside rotors that is oppositely arranged across space and the said outside tooth of regulation; The inboard rotor that is oppositely arranged across space and the said inner tines of regulation; Second moulded resin of integrally formed said outside rotors and said inboard rotor is incorporated into the said motor reel of said outside rotors and said inboard rotor
Said stator yoke has a plurality of through holes that connect in the axial direction, the integrally formed said stator yoke of said first moulded resin, said outer side slot, said inner side slot, said coil and said through hole.
2. drum type washing machine as claimed in claim 1 is characterized in that:
Outer circumferential side at said swing roller has the steel ladle that round-ended cylinder shape is arranged, and said motor is fixed on the bottom of said steel ladle.
3. drum type washing machine as claimed in claim 2 is characterized in that:
Said first moulded resin has a plurality of installation portions, and said installation portion is fixed in said steel ladle.
4. drum type washing machine as claimed in claim 1 is characterized in that:
Said through hole is formed on the intersection point of center circular arc of straight line and said stator yoke of the direction of rotation central authorities that connect said outside tooth and the direction of rotation central authorities of said inner tines.
5. drum type washing machine as claimed in claim 1 is characterized in that:
The cross section of said through hole is circle or oval.
6. drum type washing machine as claimed in claim 1 is characterized in that:
Said second moulded resin has a plurality of wind hole that on said motor reel direction, connects.
7. drum type washing machine as claimed in claim 1 is characterized in that:
Said second moulded resin with said stator on part relative on the said motor reel direction, have a plurality of protuberances.
8. drum type washing machine as claimed in claim 1 is characterized in that:
One side has a plurality of reinforcements at the back side of said second moulded resin.
9. drum type washing machine as claimed in claim 1 is characterized in that:
The quantity of said outer side slot is identical quantity S with the quantity of said inner side slot,
Said outside rotors possesses the outside permanent magnet of outside rotors yoke and number of poles P,
Said inboard rotor possesses the inboard permanent magnet of inboard rotor yoke and number of poles P,
If establish Integer N, remove 2N-1 and be the situation of 3 multiple, then the quantity S of said groove and the said number of poles P relation that is S: P=3: 2N-1 more than or equal to 1.
10. drum type washing machine as claimed in claim 9 is characterized in that:
Said groove counts S and said number of poles P is S: P=3: 5 relation.
11. drum type washing machine as claimed in claim 9 is characterized in that:
At least one of said outside permanent magnet and said inboard permanent magnet is embedded in the inside of said outside rotors yoke or said inboard rotor yoke.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP103648/2007 | 2007-04-11 | ||
| JP2007103648 | 2007-04-11 | ||
| PCT/JP2008/000895 WO2008126408A1 (en) | 2007-04-11 | 2008-04-08 | Drum type washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101657949A CN101657949A (en) | 2010-02-24 |
| CN101657949B true CN101657949B (en) | 2012-05-30 |
Family
ID=39863567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800118557A Expired - Fee Related CN101657949B (en) | 2007-04-11 | 2008-04-08 | Drum type washing machine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100058817A1 (en) |
| JP (1) | JPWO2008126408A1 (en) |
| CN (1) | CN101657949B (en) |
| WO (1) | WO2008126408A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2407431T3 (en) * | 2008-05-14 | 2013-06-12 | Whirlpool Corporation | Washing machine with a direct drive system |
| DE102008046187A1 (en) * | 2008-09-06 | 2010-03-11 | Schaeffler Kg | Rotor i.e. external rotor, for washing machine-direct drive, has reinforcing structure comprising segment-like surface sections, which are alternately arranged and comprise axial distance increasing in radial direction |
| JP5515297B2 (en) * | 2009-01-17 | 2014-06-11 | 日産自動車株式会社 | Rotating electric machine |
| KR20120017872A (en) | 2010-08-20 | 2012-02-29 | 삼성전자주식회사 | Motor usable with washing machine and washing machine having the same |
| CN104838054B (en) * | 2012-12-18 | 2017-06-13 | 阿莫泰克有限公司 | The drive device of washing machine and the washing machine with the drive device |
| CN104884699B (en) * | 2012-12-18 | 2017-02-15 | 阿莫泰克有限公司 | Washing machine driving apparatus and washing machine comprising same |
| US10505412B2 (en) | 2013-01-24 | 2019-12-10 | Clearwater Holdings, Ltd. | Flux machine |
| WO2016014717A1 (en) * | 2014-07-23 | 2016-01-28 | Clearwater Holdings, Ltd | Flux machine |
| KR102331602B1 (en) * | 2015-04-06 | 2021-11-30 | 엘지전자 주식회사 | Laundry Treating Apparatus |
| JP6820090B2 (en) * | 2015-07-21 | 2021-01-27 | 三星電子株式会社Ｓａｍｓｕｎｇ Ｅｌｅｃｔｒｏｎｉｃｓ Ｃｏ．，Ｌｔｄ． | Washing machine and its motor |
| KR102466277B1 (en) | 2017-09-07 | 2022-11-11 | 삼성전자주식회사 | Washing machine |
| JP7052017B2 (en) | 2017-09-08 | 2022-04-11 | クリアウォーター ホールディングス，リミテッド | Systems and methods to improve storage |
| CN116436188A (en) | 2017-10-29 | 2023-07-14 | 清水控股有限公司 | Modular electromagnetic machine and method of use and manufacture thereof |
| US10954621B2 (en) * | 2017-12-20 | 2021-03-23 | Samsung Electronics Co., Ltd. | Washing machine and motor |
| US11773525B2 (en) | 2019-05-02 | 2023-10-03 | Whirlpool Corporation | Double-rotor washing type drum washing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001258189A (en) | 2000-03-15 | 2001-09-21 | Toshiba Corp | Permanent magnet motor and vertical shaft washing machine and horizontal shaft washing machine |
| CN1586031A (en) * | 2002-06-26 | 2005-02-23 | 阿莫泰克有限公司 | Brushless direct-current motor of radial core type having a structure of double rotors and method for making the same |
| JP2006296033A (en) * | 2005-04-07 | 2006-10-26 | Mitsuba Corp | Brushless motor |
| CN1913283A (en) * | 2005-08-12 | 2007-02-14 | 三洋电机株式会社 | Electromotor for washing machine and washing machine having the electric motor |
| CN1976168A (en) * | 2003-12-10 | 2007-06-06 | Lg电子株式会社 | Outer rotor type motor for drum type washing machine and method for fabricating the same |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0898473A (en) * | 1994-09-21 | 1996-04-12 | Copal Co Ltd | Laminate structure for motor |
| JPH10271782A (en) * | 1997-03-28 | 1998-10-09 | Matsushita Electric Ind Co Ltd | Motor |
| JP3983423B2 (en) * | 1999-07-23 | 2007-09-26 | 松下電器産業株式会社 | Electric motor |
| JP4269544B2 (en) * | 2000-09-14 | 2009-05-27 | 株式会社デンソー | Multi-rotor synchronous machine |
| US7105973B2 (en) * | 2003-07-21 | 2006-09-12 | Kollmorgen Corporation | Highly efficient permanent magnet brushless motor |
| AU2004237798B2 (en) * | 2003-12-10 | 2010-06-24 | Lg Electronics Inc. | Outer type motor for drum type washing machine and method for fabricating the same |
| KR20070029442A (en) * | 2005-09-09 | 2007-03-14 | 삼성전자주식회사 | Drum washing machine |
| KR100663641B1 (en) * | 2006-04-06 | 2007-01-05 | 주식회사 아모텍 | Method for making integrated stator, brushless direct current motor of radial core type having a structure of double rotors and method for making the same using the method |
-
2008
- 2008-04-08 CN CN2008800118557A patent/CN101657949B/en not_active Expired - Fee Related
- 2008-04-08 JP JP2009508916A patent/JPWO2008126408A1/en not_active Withdrawn
- 2008-04-08 WO PCT/JP2008/000895 patent/WO2008126408A1/en active Application Filing
- 2008-04-08 US US12/594,279 patent/US20100058817A1/en not_active Abandoned
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001258189A (en) | 2000-03-15 | 2001-09-21 | Toshiba Corp | Permanent magnet motor and vertical shaft washing machine and horizontal shaft washing machine |
| CN1586031A (en) * | 2002-06-26 | 2005-02-23 | 阿莫泰克有限公司 | Brushless direct-current motor of radial core type having a structure of double rotors and method for making the same |
| CN1976168A (en) * | 2003-12-10 | 2007-06-06 | Lg电子株式会社 | Outer rotor type motor for drum type washing machine and method for fabricating the same |
| JP2006296033A (en) * | 2005-04-07 | 2006-10-26 | Mitsuba Corp | Brushless motor |
| CN1913283A (en) * | 2005-08-12 | 2007-02-14 | 三洋电机株式会社 | Electromotor for washing machine and washing machine having the electric motor |
Non-Patent Citations (1)
| Title |
|---|
| JP平8-98473A 1996.04.12 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20100058817A1 (en) | 2010-03-11 |
| CN101657949A (en) | 2010-02-24 |
| WO2008126408A1 (en) | 2008-10-23 |
| JPWO2008126408A1 (en) | 2010-07-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101657949B (en) | Drum type washing machine | |
| KR100899913B1 (en) | Motor | |
| KR101131743B1 (en) | Direct drive apparatus for drum washing machine | |
| CN110247484A (en) | Food processor and stator core, motor for food processor | |
| EP1641103A3 (en) | A motor using a rotor including interior permanent magnets | |
| CN101330234A (en) | Direct-drive composite type permanent magnet motor | |
| JP2004072957A (en) | Rotor of permanent magnet type dynamo electric machine | |
| US6946760B2 (en) | Brushless permanent magnet motor with high power density, low cogging and low vibration | |
| US6833647B2 (en) | Discoid machine | |
| CN106602823A (en) | Double-claw-pole-stator magnetic gathering type vernier motor | |
| CN109104014B (en) | Four-phase double-winding vernier motor | |
| CN114337167A (en) | Double-rotor structure of permanent magnet motor | |
| CN220985509U (en) | Dual-rotor motor | |
| CN220359004U (en) | Ultrathin brushless motor | |
| KR100921243B1 (en) | Rotor of permanent magnet type ac generator having division magnet arrangement | |
| CN209593238U (en) | A kind of 14 pole, 12 slot low noise variable-frequency motor of ceiling fan | |
| CN110224569A (en) | A kind of 14 pole, 12 slot low noise variable-frequency motor of ceiling fan | |
| CN114938120A (en) | Axial-radial composite flux permanent magnet motor structure | |
| CN209676023U (en) | Ultrahigh speed rotor structure of switching reluctance dynamo | |
| CN113629967A (en) | Direct-current brushless inner rotor motor with Halbach array | |
| CN101375486A (en) | Motor | |
| CN102594078A (en) | External rotor motor device | |
| WO2020156139A1 (en) | Electric motor, stator assembly, and winding support therefor | |
| CN215733975U (en) | High-power direct-drive brushless direct current motor for small household appliances | |
| JP4881826B2 (en) | Permanent magnet rotary motor and washing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140408 |