CN101421903A

CN101421903A - The stator of the outer rotor-type motor of drum-type washing machine

Info

Publication number: CN101421903A
Application number: CNA2005800013903A
Authority: CN
Inventors: 崔成奉; 李得熙
Original assignee: LG Electronics Inc
Current assignee: LG Electronics Inc
Priority date: 2004-02-26
Filing date: 2005-02-23
Publication date: 2009-04-29
Anticipated expiration: 2025-02-23
Also published as: KR20050087279A; CN101421903B; KR101033574B1

Abstract

A kind of stator structure that is used for the outer rotor-type motor of drum-type washing machine comprises the ring-shaped core of sandwich construction, and it has banded substrate and form from bottom to top layer with helical this steel plate of reeling simultaneously from the steel plate of the outstanding T shape portion of this substrate by piling up; The upper and lower insulating part of electrical insulating material, be coated over the upside and the downside of helical core with shape with the shape complementarity of helical core, the bottom insulating part comprises the fastening part more than three or three that is formed one, outstanding from the inboard of helical core towards stator central authorities, be used for stator is fastened to the fixation side of bucket, fastening part has fastener hole, utilizes tightening member stator to be fastened to the fixation side of bucket; And the reinforcement carriage, be arranged between upper insulator and the bottom insulating part, thus reduce to make required material and make after stator weight, simplified manufacture process, and stator can be installed to fixation side securely, for example be installed on bucket or the supporting shell.

Description

The stator of the outer rotor-type motor of drum-type washing machine

Technical field

The present invention relates to a kind of drum-type washing machine, more particularly relate to can be applicable to the stator structure of the external-rotor-type BLDC motor of direct-connected drum-type washing machine.

Background technology

Usually, drum-type washing machine is washing agent, washings and clothing to be put under the state of rotating cylinder, rotating cylinder that is rotated by the actuating force of motor and the frictional force between the clothing are come cleaning clothes, this drum-type washing machine can cause damage to clothing hardly, clothing is twined, and the clean result that has impact, rubs and rub with the hands.

In the drum-type washing machine of prior art, indirect interconnection system arranged with direct-coupled type, in the washing machine of interconnection system indirectly, actuating force is passed to rotating cylinder by the belt that is wrapped on motor pulley and the rotating cylinder pulley indirectly from motor; In the washing machine of direct-coupled type, the rotor of BLDC motor directly links to each other with rotating cylinder, thereby directly actuating force is passed to rotating cylinder from motor.

For actuating force not directly but pass to the washing machine of rotating cylinder type that energy loss is big in power transmission process, and causes very big noise in power transmission process by motor pulley and rotating cylinder pulley room ground connection at motor.

In view of the above, current for existing these problems in the drum-type washing machine that solves indirect connection, use the trend of the direct-connected drum-type washing machine that has the BLDC motor to increase day by day.

With reference to Fig. 1 direct-connected drum-type washing machine of the prior art is described briefly below.Fig. 1 represents the longitudinal sectional drawing of drum-type washing machine of the prior art.

With reference to Fig. 1, this drum-type washing machine of the prior art is provided with: one is installed in the bucket 2 of the inside of casing 1; One be installed in rotation on the bucket 2 inside middle body on rotating cylinder 3.At the rear portion of bucket 2 motor is arranged, wherein a stator 6 is fixed on the rear wall of bucket, and a rotor 5 surrounds stator 6, and rotor 5 usefulness one are passed spool being connected with rotating cylinder 3 of bucket.

Simultaneously, be equipped with one 21, between door 21 and bucket 2, a packing ring 22 be installed in the front portion of casing 1.

Between the top of the inner surface on casing 1 top and bucket 2 outer peripheral faces, have pendulum spring 23, between the bottom of the inner surface of casing 1 bottom and bucket 2 outer peripheral faces, have a friction shock absorber 24.

The perspective external view of the stator in Fig. 2 presentation graphs 1, Fig. 3 represent to be applied to the perspective diagram of a segment core DC of the stator among Fig. 2.

Be used for making this method unshakable in one's determination in the prior art, one metal sheet is pressed into a unit core, this unit core has T shape portion 151, substrate 150 and projection 500, projection 500 is opposite with T shape portion 151, be provided with fastener hole 500a in each projection 500, then, these unit core are piled up to form the unit core assembly, then along circumferentially these unit core assemblies being connected with each other, thereby finish the manufacturing of stator core, this stator core is known as segment core (Sectional Core).

Projection 500 provides fastener hole 620a, and this fastener hole 620a is used for stator 6 is fastened to the rear wall of bucket, and as the fastening force that keeps bolt.

Yet, this method of utilizing segment core SC to make stator 6, the many materials of not only complicate fabrication process, and loss.

Therefore, HC unshakable in one's determination is favourable even employing is called scroll, in this helical core, the steel plate that will have T shape portion 151 and substrate 150 piles up with twisted, so that reduce spillage of material, makes that this manufacture process is simple, but, because it need bend to spiral form striking out banded metal sheet, therefore, the defective of this helical core is to be used for the projection that stator is fastened on the bucket can not be set at inboard unshakable in one's determination.

This be because, if in the process of making helical core HC, projection 500 is arranged on the inboard unshakable in one's determination, so, unshakable in one's determinationly hindered bending unshakable in one's determination being provided with the big width that the part place that forms the projection on it has.

Therefore, current, in order to adopt this helical core HC, just need a kind of like this stator structure, wherein not by unshakable in one's determination own, but carry out a kind of and projection identical functions segment core SC by other parts.

As a reference, will guaranteeing to be used for that stator is fastened to the projection with fastener hole on the bucket why, to have the reason of importance of enough rigidity as follows.

Rotating cylinder directly by the washing machine of BLDC revolution in, stator be directly installed on the bucket the rear portion on.For the stator net weight greater than 1.5 kilograms, the motor of the big capacity drum-type washing machine of velocity of rotation in 600～2000 rev/mins of scopes, because in high speed rotating, the vibration of stator weight, rotor 5, shake and be out of shape and cause the fastening part of stator 6 to rupture easily.

Especially, in drum-type washing machine, stator 6 is fixed on barrel rear wall when adopting the BLDC motor, here stator 6 axially be arranged essentially parallel to ground, in the vibration meeting that is produced during the washer operation fastening part that is fixed on the stator 6 on barrel rear wall is caused severe impairment.

Therefore, under situation about stator 6 being fastened on the bucket, it is highly important that the projection of fastener hole has enough rigidity.

Summary of the invention

An object of the present invention is to provide a kind of outer rotor-type motor that is used for drum-type washing machine, this motor has to reduce makes the required material and the stator of weight, manufacture process is simple, and can be fixedly mounted in fixation side, for example is mounted on bucket or the supporting shell.

Another object of the present invention provides a kind of new stator structure that can be fixedly mounted in such as the fixation side of bucket or supporting shell, can reduce simultaneously the material of making usefulness as previously mentioned, thereby be applicable to the BLDC motor of drum-type washing machine, only more than 1.5 kilograms, rotating speed is at 0～2000 rev/min or bigger for its stator weight.

Another object of the present invention provides a kind of stator structure, wherein is provided with one and strengthens carriage between the insulating part of the upper and lower of stator, is used for respect to the bending of stator and reverses raising rigidity.

Another object of the present invention provides a kind of stator structure, and it can improve the intensity of the fastening part on the insulating part of stator upper and lower.

By being provided, a kind of stator structure that is used for the outer rotor-type motor of drum-type washing machine just can realize purpose of the present invention, this stator structure comprises: the ring-shaped core of a sandwich construction (core), and it has band-shaped substrate and from the steel plate of the outstanding T shape portion (Ts) of this substrate, begin to form with helical this steel plate of reeling to top layer from bottom simultaneously by piling up; The upper and lower insulating part of electrical insulating material, be coated over the upside and the downside of helical core with shape with the shape complementarity of helical core, wherein, each upper and lower insulating part comprises the fastening part that forms as one more than three or three, outstanding from the inboard of helical core towards stator central authorities, be used for stator is fastened to the fixation side of bucket, fastening part has fastener hole, utilizes tightening member stator to be fastened to the fixation side of bucket; And one strengthen carriage, is set between upper insulator and the bottom insulating part.

In another aspect of the present invention, a kind of stator structure that is used for the outer rotor-type motor of drum-type washing machine, comprise: the ring-shaped core of a sandwich construction, it has band-shaped substrate and from the steel plate of the outstanding T shape portion of this substrate, begin to form with helical this steel plate of reeling to top layer from bottom simultaneously by piling up; The upper insulator of one electrical insulating material is coated over the upside of helical core with the shape with the shape complementarity of helical core; The bottom insulating part of one electrical insulating material when assembling with upper insulator, is coated over the downside of helical core with the shape with the shape complementarity of helical core; Wherein, each upper insulator and bottom insulating part comprise the fastening part that forms as one, outstanding from the inboard of helical core towards stator central authorities, be used for stator is fastened to the fixation side of bucket, fastening part has one and constitutes the knuckle (boss) of fastener hole, so that utilize tightening member stator to be fastened to the fixation side of bucket; And guiding rib, these guiding ribs lay respectively at the inner side surface of upper insulator and bottom insulating part, upper insulator and bottom insulating part contact with lower surface with the upper surface that is connected the helical core between the adjacent knuckle respectively there, so that disperse to concentrate on the fastening force on the knuckle, and strengthen the intensity of fastening part.

In view of the above, the present invention can make stator can be fixedly mounted in fixation side, for example is installed on the bucket, also can reduce the required material and the weight of stator of the BLDC motor of making drum-type washing machine simultaneously, and can simplify manufacture process.

Especially, similar with the situation that adopts segment core, the present invention makes over a long time, and stator can be fixedly mounted in fixation side, for example be installed on bucket or the supporting shell, also can reduce the material of stator core and insulating part simultaneously, thus only be applicable to stator weight reach more than 1.5 kilograms and rotating speed at the BLDC of 0～2000 rev/min drum-type washing machine motor.

Drum-type washing machine of the present invention makes and can easily be mounted on the bucket at stator on the assembly line, and can more easily carry out maintenance work when making maintenance service.

Strengthen carriage by between upper insulator and bottom insulating part, being provided with one, drum-type washing machine of the present invention makes with respect to intensity crooked and the upper and lower insulating part that reverses, can improve the rigidity of the stator that has the upper and lower insulating part, can reduce noise and vibration, the reliability of raising machinery also increases the service life.

Description of drawings

Fig. 1 schematically shows the longitudinal section of the drum-type washing machine of direct-coupled type of the prior art;

Fig. 2 is the perspective diagram of stator of the prior art;

Fig. 3 is the perspective diagram of the segment core among Fig. 2;

Fig. 4 is the external perspective view of stator according to one preferred embodiment of the present invention;

Fig. 5 is the part schematic exploded perspective view of Fig. 4;

Fig. 6 is the rear side perspective diagram of the part of the upper insulator among Fig. 5;

Fig. 7 is the floor map of the critical component among Fig. 4;

Fig. 8 and 9 is reference diagrams, the multiple application of expression insulating part;

Figure 10 is the outside perspective diagram of the stator of another preferred embodiment according to the present invention;

Figure 11 is the part schematic exploded perspective view of Figure 10;

Figure 12 is the rear side perspective diagram of the part of the upper insulator among Figure 11;

Figure 13 is the floor map of the critical component among Figure 10;

Figure 14 and 15 is reference diagrams, the multiple application of expression insulating part.

Embodiment

With reference to Fig. 4 to Figure 15 embodiments of the invention are described below.

With reference to Fig. 4～8 preferred embodiment of the present invention is described below.

Fig. 4 is the outside perspective diagram of stator according to one preferred embodiment of the present invention, and Fig. 5 is the exploded view of Fig. 4, and Fig. 6 is the rear side perspective diagram of the part of the upper insulator among Fig. 5.

As shown in the figure, the stator 6 of outer rotor-type motor comprises: an annular helical core HC, this helical core HC has by piling up the sandwich construction that steel plate forms, and the T shape portion 151 that has shape substrate 150 and give prominence to from substrate 150 begins to top layer coiling steel plate from bottom with helical simultaneously; The upper insulator 60a of one electrical insulating material is to be coated over the upside of helical core HC with the complementary mutually shape of the shape of helical core HC; The bottom insulating part 60b of one electrical insulating material, when assembling with upper insulator 60a, be coated over the downside of helical core 60b with shape with the shape complementarity of helical core HC, wherein, among upper insulator 60a and the bottom insulating part 60b each all comprises more than three or three and fastening part 600 its formation one, these fastening parts are outstanding towards the central authorities of stator 6 from the inboard of helical core HC, are used for stator 6 is fastened to the fixation side of bucket.

Fastening part 600 (see figure 5)s have a fastener hole 620a (see figure 5), are used for by tightening member stator 6 being fixed to fixation side, for example are fixed on the bucket.Fastener hole 620a is made to the knuckle 620 of coupling part 600 rear sides by prominent.

Among upper insulator 60a and the bottom insulating part 60b each circumferentially all has a ribs 650 along it on the inboard, contact with helical core HC so that support inner surface unshakable in one's determination.

The fastening part 600 of each all has at least one ribs 660 among upper insulator 60a and the bottom insulating part 60b, be connected between the knuckle 620 and ribs 650 of fastener hole 520a, the fastening force that is used for will concentrating on the knuckle 620 scatter, and strengthens the intensity of fastening part 600.

In addition, the fastening part 600 of each all has a ribs 670 in its peripheral inboard among upper insulator 60a and the bottom insulating part 60b, and has at least one connection rib 680, this connection rib 680 is connected ribs 670 and is used between the ribs 650 of inner surface unshakable in one's determination along radial support, so that a support force is provided.

Simultaneously, each all has

terminal

610a and 610b on the opposed sidewall that is positioned at each T shape portion 610 among upper insulator 60a and the bottom insulating part 60b, and these terminal shapes are complimentary to one another, can cooperatively interact so that form the surface that flushes when assembling.

Each

terminal

610a and 610b in each T shape portion 610 all have "

" shape, if opposite side have "

" shape.

T shape portion 610 opposite end surfaces on the opposed side walls surface that is substantially perpendicular to upper insulator 60a and bottom insulating part 60b also have

terminal

610a and 610b, and these ends have shape complimentary to one another.

Among upper insulator 60a and the bottom insulating part 60b T shape portion 610 of each at one end portion have an abutment surface 611a, be used to support the boots 151a unshakable in one's determination of helical core HC.

Simultaneously, near the fastener hole 620a of the fastening part 600 of upper insulator 60a, have its shape and the location hole of the fixation side of bucket or the locator protrusions 630 of groove (not shown) complementation.

In fastener hole 620a, has cylindrical sleeve 800; The rubber-like spring catch maybe can press fit over the hollow pin among the fastener hole 620a owing to the part through cutting, as a lining.

The carriage 66 that has the band medium pore of a plate-like between upper insulator 60a and bottom insulating part 60b, stator produces when being used for assembling bending and distortion improve rigidity.

Strengthen carriage 66 and have through hole 66a, the fastener hole 620a in the fastening part 600 of through hole 66a and upper insulator 60a and bottom insulating part 60b is corresponding.

Strengthen the inside diameter of the outer dia of carriage 66 less than annular helical core HC.

That is to say, strengthen carriage 66 and be positioned between upper insulator and the bottom insulating part, can not cause assembling to interfere helical core HC and upper and lower insulating part.

The substrate 150 of helical core HC has the groove that is used to reduce stress, so that make coiling unshakable in one's determination carry out easily, by the through hole in the substrate 150 being gone in rivet 153 rivetings and helical core HC being fixed together.

The coiling end of helical core HC is soldered on the predetermined portions of substrate 150 in the mode that contacts respectively with the coiling initial part.

With reference to Fig. 7, stator 6 of the present invention has fastening part 600, each fastening part and upper insulator 60a or form one from three of inner peripheral surface unshakable in one's determination or three radially outstanding bottom insulating part 60b in above position.Fastening part 600 is manufactured into and makes and to satisfy inequality a 〉=b, and wherein, " a " expression is from the length of each outstanding T shape portion 151 of the outer surface of helical core HC, the distance of the fastener hole central authorities of " b " expression from the inner surface of helical core to fastening part 600.

Simultaneously, with reference to Fig. 5, a Reference numeral of not explained 8 expressions are used to control the hole sensor assembly of motor, and Reference numeral 9 expression joint (tap) casing assemblies are used to open power so that stator side is arrived in power supply.

The various details working condition.

Different with segment core SC is, the so-called helical core HC of the present invention forms with helical coiling steel plate by the steel plate with T shape portion and substrate 150 is piled up simultaneously, and it allows to save the step of alignment and welding stack of lamination, thereby has simplified manufacture process.

In addition, different with segment core is that because helical core HC does not have projection, therefore, helical core HC can reduce the waste of material.

That is to say that the present invention makes the method for stator, not only simplify the waste of manufacture process but also minimizing material.

In addition, reinforcement carriage 66 between upper insulator 60a and the bottom insulating part 60b improves the intensity of upper insulator 60a and bottom insulating part 60b with respect to the bending and the distortional energy of stator 6, thereby can improve the reliability of the stator 6 with upper insulator 60a and bottom insulating part 60b.

Simultaneously, even originally be not provided with the projection that keeps fastening force when stator 6 being fastened to barrel side on one's body at iron core, by improving the structure of upper insulator 60a and bottom insulating part 60b, stator 6 still has enough rigidity and keeps bolted power.

That is to say, provide the structure that has identical effect with the projection of segment core SC by fastening part 600, thereby the stator 6 of applicable helical core HC can be provided for upper insulator 60a and bottom insulating part 60b.

In addition, vibration damping and damped vibration are carried out in the 640 pairs of vibrations that produced during CD-ROM drive motor in space between the rib 650,660,670 and 680 of fastening part 600 rear sides, so that improve the Mechanical Reliability of stator 6, and can save the material of insulating part.

Simultaneously, in upper insulator 60a that is provided with along the inboard that circumferentially contacts and the ribs of bottom insulating part 60b, supporting the inner surface of helical core HC with helical core HC.

Knuckle 620 and the 660 pairs of fastening forces that concentrate on the knuckle 620 of the ribs between the ribs 650 of fastener hole 620a that are connected each fastening part 600 of upper insulator 60a and bottom insulating part 60b disperse, and strengthen the intensity of fastening part 600.

In view of the above, even in stator weight more than 1.5 kilograms, in the big capacity drum-type washing machine of velocity of rotation at 600～2000 rev/mins, when rotor 5 rotated, shakes and is out of shape, stator 6 can prevent effectively also that the fastening part of stator 6 from being caused by vibration and break.

Because near the location projection 630 the fastener hole 620a of fastening part 600 is assemblied in the location hole (not shown) of bucket 2, therefore, the fastening of stator 6 is easy.

Like this, locator protrusions makes can easily install stator 6 and bucket 2, and the attendant also just can be easy to repair when serving after sale.

Certainly, locator protrusions 630 can be arranged on the bucket 2, and location hole can be arranged in the fastening part 600.

Simultaneously, Fig. 8 and 9 is with reference to accompanying drawing, and the multiple application of expression insulating part wherein can be noticed, even the total height of helical core changes within the specific limits, also can be suitable for upper insulator 60a and bottom insulating part 60b.

That is to say that Fig. 8 represents as total height h unshakable in one's determination ₁Be to allow upper and lower part insulating part 60a, the terminal 610a of 60b, situation during height that 610b accurately cooperates, Fig. 9 represents such a case, promptly work as total height unshakable in one's determination greater than respective heights among Fig. 8, make the terminal 610a of upper insulator 60a and bottom insulating

part

60b, 610b (seeing Fig. 5 and 6) can not accurately cooperate, but situation about keeping at a certain distance away.

Even total height h2 unshakable in one's determination is greater than allowing insulating part 60a up and down, the terminal 610a of 60b, the height that 610b can accurately cooperate, feasible 610a endways, has a space between the 610b, because still can obtain insulation to T shape unshakable in one's determination portion, insulating part 60a up and down, 60b also can be applicable to the situation among Fig. 9.

Like this, because regardless of the total height unshakable in one's determination in certain total height scope, the insulating part up and down of the separate type of this embodiment is applicable to this iron core, and insulating part can improve the processability on the assembly line about the separate type of this embodiment.

With reference to Figure 10 to 15 an alternative embodiment of the invention is described below.

Figure 10 is the perspective diagram according to a stator outside of another preferred embodiment of the present invention.Figure 11 is the exploded view of Figure 10.Figure 12 is the rear side perspective diagram of the part of the upper insulator among Figure 11.

Figure 13 is the floor map of the critical component of the stator among Figure 10.Figure 14 and 15 is with reference to the accompanying drawings, the multiple application of expression insulating part.

The parts of the stator 6 of the outer rotor-type motor of another preferred embodiment according to the present invention, the description of the parts identical with front embodiment will be removed, and only describe the part of those features.

The stator of the outer rotor-type motor of another preferred embodiment according to the present invention, comprise guiding rib 690, guiding rib lays respectively at the inner surface of upper insulator 60a and bottom insulating part 60b, here, upper insulator 60a and bottom insulating part 60b contact with lower surface with the upper surface that is connected the helical core HC between the adjacent knuckle 620 respectively, so that disperse to concentrate on the fastening force on the knuckle 620, and strengthen the intensity of fastening part.

Guiding rib 690 is connected on the outer surface of knuckle 620, thereby the feasible imaginary line that extends from the opposite ends of adjacent guiding rib 690 passes through the central authorities of fastener hole 620a, and guiding rib 690 forms a circle together basically.

The working condition of this embodiment will be described below.

Different with segment core SC is, having T shape portion 151 and substrate 150 by piling up, be applied in the present invention with the formed so-called helical core HC of helical coiling steel plate simultaneously, can save the step of alignment, welding stack of lamination, thereby simplify manufacture process.

In addition, different with segment core is that because helical core HC does not have projection, helical core HC can reduce the waste of material.

That is to say that the method that is used to make the stator of this embodiment has not only been simplified manufacture process, but also has reduced the waste of material.

In space 640, can insert damping material, so that to vibrating further raising vibration damping and attenuation.

Simultaneously, supporting the inner surface of helical core HC in the ribs 650 of upper insulator 60a that is provided with along the inboard that circumferentially contacts and bottom insulating part 60b with helical core HC.

Be connected the knuckle 620 of fastener hole 620a at each fastening part 600 place of upper insulator 60a and bottom insulating part 60b and the ribs 660 between the ribs 650, the fastening force that concentrates on the knuckle 620 is disperseed, and strengthen the intensity of fastening part 600.

In addition, be connected the guiding rib 690 between the adjacent knuckle 620 on ribs 650 inboards, the fastening force that concentrates on the knuckle 620 is disperseed, and further improve the intensity of fastening part 600.

In view of the above, even in stator weight more than 1.5 kilograms, in the big capacity drum-type washing machine of velocity of rotation at 600～2000 rev/mins, when rotor 5 rotated, shakes and is out of shape, stator 6 can prevent effectively that also the fastening part of stator 6 is because of breaking that vibration causes.

Because near the locator protrusions 630 the fastener hole 620a of fastening part 600 is assemblied in the location hole (not shown) of bucket 2, therefore, the fastening of stator 6 is easy.

Certainly, locator protrusions 630 can be arranged on the bucket 2, and location hole can be arranged in the coupling part 600.

Simultaneously, Figure 14 and 15 is with reference to accompanying drawing, the multiple application of expression insulating part, wherein, similar to the embodiment of front, can notice, even the total height of helical core HC changes within the specific limits, the upper insulator 60a of this embodiment and bottom insulating part 60b also can be suitable for.

Like this, because regardless of the total height unshakable in one's determination in certain total height scope, the insulating part up and down of the separate type of this embodiment is also applicable to this iron core, and insulating part can improve the processability on the assembly line about the separate type of this embodiment.

Not it will be apparent to those skilled in the art that breaking away from design of the present invention and scope and can make various variations and modification the present invention.Therefore, the present invention covers these variations and the modification in the scope that falls into claims and equivalent thereof.

Industrial applicibility

The present invention can reduce for the manufacture of the required material of the stator of drum-type washing machine BLDC motor and Weight, and on assembly line, can securely stator be installed to fixation side, for example be installed to a barrel side, Thereby can improve production capacity and also can save production cost.

Owing to can easily be installed to stator on the bucket on the assembly line, so the maintenance in the use procedure Also just be easy to.

In addition, the reinforcement carriage between upper insulator and bottom insulating part for the bending of stator and Reverse the intensity that has improved upper insulator and bottom insulating part, the rigidity that this has just improved stator causes Reduce noise and vibration, and improve Mechanical Reliability and increase the service life, therefore have the worker of height The industry practicality.

Claims

1. stator structure that is used for the outer rotor-type motor of drum-type washing machine comprises:

The ring-shaped core of one sandwich construction has banded substrate and begins to form with helical coiling steel plate to top layer from bottom simultaneously from the steel plate of the outstanding T shape portion of this substrate by piling up;

The upper insulator of one electrical insulating material is coated over the upside of helical core with the shape with the shape complementarity of helical core; And

The bottom insulating part of one electrical insulating material when assembling with upper insulator, is coated over the downside of helical core with the shape with the shape complementarity of helical core;

Wherein, each upper insulator and bottom insulating part comprise the fastening part that is formed one, and be outstanding towards stator central authorities from the inboard of helical core, be used for stator be fastened to bucket fixation side and

One is arranged on the reinforcement carriage between upper insulator and the bottom insulating part.

2. stator structure according to claim 1, wherein, fastening part has a fastener hole, is used to utilize tightening member stator to be fastened to the fixation side of bucket.

3. stator structure according to claim 1 wherein, is strengthened carriage and is the plate-like that has an interstitial hole, and have with fastening part in the corresponding through hole of fastener hole.。

4. stator structure according to claim 3 wherein, is strengthened the inside diameter of the outer dia of carriage less than annular helical core.

5. stator structure according to claim 1, wherein, the fastener hole in the fastening part is made of a back side-prominent knuckle towards fastening part.

6. stator structure according to claim 1, wherein, each upper insulator and bottom insulating part have a ribs, be positioned on the inboard radially on the surface that circumferentially contact, each upper insulator and bottom insulating part of helical core, be used to support the inner surface of iron core with the upper surface of helical core or lower surface.

7. stator structure according to claim 6, wherein, the fastening part of each upper insulator and bottom insulating part comprises at least one ribs, be connected between the knuckle and ribs that constitutes fastener hole, be used to disperse to concentrate on the fastening force on the knuckle, and strengthen the intensity of fastening part.

8. stator structure according to claim 1, wherein, each upper insulator and bottom insulating part also comprise the shape end complimentary to one another on the opposed side walls that is positioned at its each T shape portion, form a flush surfaces so that can allocate into when assembling.

9. stator structure according to claim 8, wherein, each end of each T shape portion be "

" shape, if opposite side be "

" shape.

10. stator structure according to claim 1, wherein, each upper insulator and bottom insulating part also comprise the end that shape is complimentary to one another, so that at the opposed end surfaces place of the opposed sidewall surfaces that is substantially perpendicular to T shape portion, form a flush surfaces.

11. stator structure according to claim 1, wherein, each upper insulator and bottom insulating part also comprise one from the outstanding abutment surface in the outside of each opposed end wall of T shape portion, are used to support the boots unshakable in one's determination of helical core.

12. stator structure according to claim 1, wherein, the fastening part of upper insulator comprises that one is positioned near the locator protrusions of fastener hole, its shape and the location hole of the fixation side of bucket or the shape complementarity of groove.

13. stator structure according to claim 1 wherein, also comprises a cylindrical sleeve that is positioned in the fastener hole.

14. stator structure according to claim 13, wherein, cylindrical sleeve is a rubber-like spring catch, owing to the part that is cut along the length direction of outer peripheral face of spring catch has elasticity.

15. stator structure according to claim 13, wherein, cylindrical sleeve is one not have the hollow pin of cutting part, so that be press-fitted in the fastener hole.

16. stator structure according to claim 1, wherein, the substrate of helical core has notch, the stress when being used to reduce wound core.

17. stator structure according to claim 13 wherein, utilizes the rivet of being gone in the through hole in the substrate by riveting that helical core is fixed together.

18. stator structure according to claim 1, wherein, helical core comprises a coiling start-up portion and a coiling latter end, is soldered on the predetermined portions of substrate respectively and is in contact with it.

19. stator structure according to claim 1, wherein, fastening part is manufactured into and can satisfies inequality a 〉=b, wherein, " a " expression is from the length of each outstanding T shape portion of the outer surface of helical core, the distance of the fastener hole central authorities of " b " expression from the inner surface of helical core to fastening part.

20. a stator structure that is used for the outer rotor-type motor of drum-type washing machine comprises:

Wherein, each upper insulator and bottom insulating part comprise the fastening part that is formed one, and be outstanding towards stator central authorities from the inboard of helical core, be used for stator is fastened to the fixation side of bucket, fastening part has a fastener hole, so as to utilize tightening member with stator be fastened to the bucket fixation side and

One is arranged on the reinforcement carriage between upper insulator and the bottom insulating part, and this reinforcement carriage is the plate-like that has an interstitial hole, and have with fastening part in the corresponding through hole of fastener hole.

21. a stator structure that is used for the outer rotor-type motor of drum-type washing machine comprises:

Wherein, each upper insulator and bottom insulating part comprise the fastening part that is formed one, outstanding from the inboard of helical core towards stator central authorities, be used for stator is fastened to the fixation side of bucket, fastening part has the knuckle of a formation fastener hole, so that utilize a Connection Element stator be connected to the bucket fixation side and

Lay respectively at the guiding rib of the inner surface of upper insulator and bottom insulating part, here, upper insulator and bottom insulating part contact with lower surface with the upper surface that is connected the helical core between the adjacent knuckle respectively, in order to disperseing to concentrate on the fastening force on the knuckle, and strengthen the intensity of fastening part.

22. stator structure according to claim 21, wherein, guiding rib is connected on the outer surface of knuckle, and the feasible imaginary line that extends from the end opposite of adjacent guiding rib passes through the central authorities of fastener hole.

23. stator structure according to claim 22, wherein, guiding rib forms a circle together basically.

24. stator structure according to claim 21, wherein, each upper insulator and bottom insulating part have a ribs, be positioned on the inboard radially on the surface that circumferentially contact, each upper insulator and bottom insulating part of helical core, be used to support the inner surface of iron core with the upper surface of helical core or lower surface.

25. stator structure according to claim 21, wherein, each upper insulator and bottom insulating part also comprise the shape end complimentary to one another on the opposed side walls that is positioned at its each T shape portion, thereby form a flush surfaces so that can allocate into when assembling.

27. stator structure according to claim 26, wherein, each end of each T shape portion be "

" shape, if opposite side be " " shape.

28. stator structure according to claim 21, wherein, each upper insulator and bottom insulating part also comprise the end that shape is complimentary to one another, so that at the opposite end surfaces place of the opposite sidewall surfaces that is substantially perpendicular to T shape portion, form a flush surfaces.

29. stator structure according to claim 21, wherein, each upper insulator and bottom insulating part also comprise one from the outstanding abutment surface in the outside of each opposed end wall of T shape portion, are used to support the boots unshakable in one's determination of helical core.

30. stator structure according to claim 21, wherein, the fastening part of upper insulator comprises that one is positioned near the locator protrusions of fastener hole, its shape and the location hole of the fixation side of bucket or the shape complementarity of groove.

31. stator structure according to claim 21 wherein, also comprises a cylindrical sleeve that is positioned in the fastener hole.

32. stator structure according to claim 31, wherein, cylindrical sleeve is a rubber-like spring catch, owing to the part that is cut along the length direction of outer peripheral face of spring catch has elasticity.

33. stator structure according to claim 15, wherein, cylindrical sleeve is one not have the hollow pin of cutting part, so that be press-fitted in the fastener hole.

34. stator structure according to claim 21, wherein, the substrate of helical core has notch, the stress when being used to reduce wound core.

35. stator structure according to claim 21 wherein, utilizes the rivet of being gone in the through hole in the substrate by riveting that helical core is fixed together.

36. stator structure according to claim 21, wherein, helical core comprises a coiling start-up portion and a coiling latter end, is soldered on the predetermined portions of substrate respectively and is in contact with it.

37. stator structure according to claim 21, wherein, fastening part is manufactured into and can satisfies inequality a 〉=b, wherein, " a " expression is from the length of each outstanding T shape portion of the outer surface of helical core, the distance of the fastener hole central authorities of " b " expression from the inner surface of helical core to fastening part.