CN103117632A - Motor assembly and washing machine driving mechanism applying same - Google Patents

Abstract

The invention relates to a motor assembly which comprises a stator component, a rotor component, a reducing mechanism, a reducing output shaft, an output shaft sleeve and an eight-pole induction motor. The rotor component is mounted in the stator component, the reducing mechanism is arranged inside the rotor component, reduces the output speed of the rotor component and is used for obtaining eccentric rotational kinetic energy from the center of the rotor component and outputting power with the speed lower than the rotor speed, the reducing output shaft is connected with the reducing mechanism and rotates at a low speed under the action of the output power of the reducing mechanism, and the output shaft sleeve is connected with the reducing mechanism and sleeved outside the reducing output shaft. The motor assembly completely meets the requirements of a mechanism on the maximum torque and the starting torque in operation, manufacturing cost is greatly reduced, and noise is low.

Description

The driving mechanism for washing machine of a kind of motor assembly and application thereof

Technical field

The present invention relates to a kind of motor assembly, the invention still further relates to the driving mechanism for washing machine that this motor assembly is used.

Background technology

The rotating speed of common electric machine is higher, in order to obtain suitable output speed, in actual applications, need to slow down to motor, the normal mode that adopts makes motor be delivered to decelerator by the one-level pulley decelerates at present, and the deceleration that one or more levels gear reduction is finished a constant-speed ratio is set in decelerator.This structure is not only complicated, and it is large to take up room.In order to solve this technical problem, have at present some about removing belt pulley, motor directly is connected with decelerator, because its motor body and decelerator remain relatively independent, motor body and decelerator need to take installing space respectively, and structure is compact not, and volume is still larger.

In order further to solve the problems of the technologies described above, publication number is that the Chinese invention patent application of CN102142734A discloses a kind of external rotor electric machine assembly, comprise motor body, driving shaft, reducing gear, wherein: driving shaft is fixed on the reducing gear, and motor body directly drives driving shaft, motor body has inner diameter volume, and reducing gear is installed in the motor body inner diameter volume.Although further having reduced to a certain extent, this structure takes up room, and because its principle is installed in reducing gear in diameter of stator bore space by installing component for utilizing on the stator interior circuferential spacing of external rotor electric machine, therefore can't use at the inner rotor motor that does not have the inner space, certain limitation is arranged, the direct driving shaft of its motor body of while, then by the reducing gear that is installed in the motor inner diameter volume driving shaft is slowed down, therefore also only take up room for having reduced to a certain extent, but structure is still compact not, further, when reducing gear need to be increased volume when obtaining more big speed ratio, inevitable so that external rotor electric machine increase internal diameter volume could be realized this invention, obviously this does not solve the technical problem of essence yet.

In addition, direct-connected motor of the prior art and reducing gear, move required starting torque and maximum moment in order to satisfy mechanism, motor need adopt external rotor electric machine, generally be specially brush DC or permagnetic synchronous motor, need to consume expensive permanent magnetic material, cause the motor cost of possession very high.

Summary of the invention

In order to solve above-mentioned problems of the prior art, the invention provides a kind of motor assembly, its technical scheme that adopts is:

A kind of motor assembly comprises stator module, is installed on the rotor assembly within the stator module, wherein: also comprise:

It is inner and with the reducing gear that the output speed of rotor assembly slows down and processes to be arranged at rotor assembly, is used for obtaining eccentric rotational kinetic energy from the rotor assembly center position, and exports the power that its rotating speed is lower than described rotor speed;

Connect the deceleration output shaft of described reducing gear, under the effect of described reducing gear outputting power, slowly run;

The output sleeve that connects described reducing gear, it is outside that it is sheathed on described deceleration output shaft;

Described motor is 8 utmost point induction machines.

Preferably, described rotor assembly comprises that rotor core and one be located at the cast aluminium end ring at rotor core two ends, described rotor core is overrided to form by several rotor punching torsional angles, described rotor punching has internal diameter and external diameter, and uniform 52 peariform slots of rotor punching periphery, described rotor punching inside diameter ranges is at 70-90mm, and described rotor punching external diameter scope is at 118-124mm.

Preferably, described peariform slot facewidth scope is at 4.2-4.8mm, at the bottom of the described peariform slot with the high scope of yoke of rotor punching inner periphery at 8-12mm.

Preferably, described rotor core inner periphery is provided with several extension inserted tooths.When rotor assembly also comprised the rotor inserts, described extension inserted tooth was used for chimeric connection the between rotor core and the rotor inserts, with increase inlay resultant force between the two; Specifically preferably, the quantity of described extension inserted tooth can be at 8-14.

Preferably, described cast aluminium end ring two ends are provided with several axially extended double wedges.When rotor assembly rotated, described double wedge was followed rotor assembly and is together rotated, and effectively plays heat sinking function.In order to ensure the dynamic equilibrium of rotor assembly, can also balance weight be set at rotor assembly.

Preferably, described rotor punching is provided with a plurality of rotor punching self-locking holes, and described rotor punching self-locking hole laminates rotor punching and is integrated; Specifically preferably, the quantity of rotor punching self-locking hole can be at 6-10.

Preferably, the peariform slot of the described rotor punching shape of remaining silent, and comprise that 1 is used for torsional angle and laminates the location with the peariform slot of opening shape, the peariform slot of described opening shape is convenient to laminate in the rotor assembly torsional angle positioning function of the original position of technique.

Preferably, described rotor assembly also comprises the rotor inserts, and described rotor inserts is inlaid in described rotor assembly body interior.The material of described rotor inserts can be aluminium, zinc or plastics, is molded over rotor assembly inside by casting or Shooting Technique setting-in.

Preferably, described stator module comprises the stator core with stator slot, and the stator winding that is positioned at stator slot, described stator core is overrided to form by the toroidal stator punching that several have circular hole in the stator, described stator punching is at stator inner circle hole circle 48 stator tooths of radial distribution on week, form 48 stator slots between each adjacent stators tooth, described stator punching external diameter scope is at 176mm, and the stator punching inside diameter ranges is at 118-124mm.

Preferably, described stator slot facewidth scope is at 0.3-0.45mm, at the bottom of the described stator slot with the high scope of equivalent yoke of stator punching excircle at 0.65-0.75mm.

Preferably, described stator punching is provided with a plurality of stator punching self-locking holes, and described stator punching self-locking hole laminates stator punching and is integrated; Specifically preferably, the quantity of stator punching self-locking hole can be at 6-10.

Preferably, described motor gas-gap scope is at 0.25-0.35mm, and namely the air gap scope between described stator module and the rotor assembly is at 0.25-0.35mm.

Preferably, described stator module is located at housing unit inside, described housing unit comprises: the tubular shell of both ends open, the electric motor end cap that is connected with the housing bottom, the mounting disc that is positioned at the housing top and is connected by securing member with electric motor end cap, and housing, electric motor end cap and mounting disc surround an inner space that is used for settling the parts such as stator module, rotor assembly and reducing gear.

Preferably, described rotor assembly comprises: bogie; Be positioned at the cavity within the described bogie.

Preferably, described reducing gear is installed in the described cavity, and comprises: the eccentric bushing that connects described bogie and rotate around the bogie axis; Be set in the spur gear that described eccentric bushing is outside and be rotationally connected with it, be used for revolving round the sun around described bogie axis along with the rotation of eccentric bushing; The ring gear that connects described output sleeve is mounted with described spur gear in it, so that described spur gear produces rotation with the internal tooth engagement of described ring gear during described revolution; Described spur gear is connected to the jockey of described deceleration output shaft.

Preferably, described reducing gear comprises: comprise the input gear axle that is installed in position, described bogie disalignment; The input gear that connects described input gear axle; The output gear that is connected with a joggle with described input gear; The middle driven wheel that is positioned at outside the described bogie and is connected with a joggle with described input gear; Described output gear is fixedly connected with the deceleration output shaft, and described middle driven wheel is fixedly connected with output sleeve.

Preferably, the outside installation of described output sleeve is connected with hysteresis damper, and hysteresis damper can produce damping force to output sleeve, so that the rotary speed of described output sleeve is equal to or less than the rotary speed of described deceleration output shaft.

Preferably, in order to reduce to greatest extent taking up room of hysteresis damper, described hysteresis damper comprises: permanent magnet; With the magnetic conductive part of permanent magnet magnetic force coupling, described permanent magnet is so that described magnetic conductive part is in the remagnetization state; Described magnetic conductive part optionally is fixedly connected with output sleeve.

The driving mechanism for washing machine that the present invention also provides the said motor assembly to use, its technical scheme that adopts is as follows:

Described driving mechanism for washing machine comprises the dehydration execution unit that connects respectively washing machine and dehydration axle sleeve and the wash shaft of washing execution unit, and the output shaft of described reducing gear becomes wash shaft, and described output sleeve becomes the dehydration axle sleeve.

Preferably, when the outside installation of described dehydration axle sleeve is connected with hysteresis damper, when the washing operating mode, described magnetic conductive part is fixedly connected with the dehydration axle sleeve, hysteresis damper produces damping force to the dehydration axle sleeve, so that the rotary speed of described dehydration axle sleeve is equal to or less than the rotary speed of described wash shaft.In the hysteresis damper, described permanent magnet is so that described magnetic conductive part is in the remagnetization state, and then magnetic conductive part is produced the magnetic hysteresis effect, namely magnetic conductive part produced damping force.

Compared with prior art, the driving mechanism for washing machine of motor assembly provided by the invention and application thereof has following outstanding advantage:

1) the present invention passes through research and design, provide 8 utmost point induction machines to replace external rotor electric machine of the prior art and realized that namely motor is connected with the direct of reducing gear, satisfied maximum moment and starting torque required when mechanism moves fully, manufacturing cost reduces greatly, and noise is low;

2) motor assembly provided by the invention is few with stator module and rotor assembly material usage, and production cost is low, and assembly technology is simple, and after being applied to 8 utmost point induction machines, maximum moment and starting torque required when mechanism moves have been satisfied fully, manufacturing cost reduces greatly, and noise is low;

3) driving mechanism for washing machine provided by the invention can be adjusted according to the variation of wash load the rotating speed of wash shaft, thereby alleviates or eliminate the damage that is washed clothing, and the burnout failure that can avoid the motor of washing machine to cause because of overload; And wash shaft and the simultaneously counter-rotating of dehydration axle sleeve, thereby improve clean result;

4) the above-mentioned the 3rd) put on the basis, the present invention produces the effective damping effect by hysteresis damper to the dehydration axle sleeve when the washing operating mode, so that the rotary speed of dehydration axle sleeve is equal to or less than the rotary speed of wash shaft, greatly guaranteed clean result, satisfied and clean than requiring;

5) driving mechanism for washing machine of the present invention is placed in the inside of motor with reducing gear, so can take full advantage of the space of motor internal, has reduced the volume of driving mechanism, thereby has been beneficial to the miniaturization of washing machine;

6) spur gear in the reducing gear of the present invention carries out rotation with ring gear generation engagement again in the eccentric bushing revolution, thereby so that wash shaft and dehydration axle sleeve are realized reverse rotation simultaneously, reduces the energy consumption of motor, and reduces noise;

7) the present invention adopts jockey that spur gear is connected to wash shaft or dehydrating shaft puts, so that the eccentric moment that departs from electrical axis that spur gear obtains when it is rotated with eccentric bushing, be converted into the moment coaxial with electrical axis, because the deceleration transmission parts that adopt are few, therefore transmission efficiency is high, compact conformation, volume is little, and installation and use is convenient;

8) the present invention's motor that power will be provided is as one of parts of driving mechanism for washing machine, compacter in the structure that makes driving mechanism for washing machine, take up room less in, also reduce the consumption of a large amount of connectors, therefore further reduced the production cost of washing machine.

The present invention is described in detail below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the structural representation of first embodiment of the invention driving mechanism for washing machine;

Fig. 2 is the explosive view (not shown arrangement of clutch) of the reducing gear of first embodiment of the invention;

Fig. 3 is the structural representation of the positioning sliding block of first embodiment of the invention;

Fig. 4 is the structural representation of the crosshead shoe of first embodiment of the invention;

Fig. 5 is the structural representation of the spur gear of first embodiment of the invention;

Fig. 6 is the structural representation of the eccentric bushing of first embodiment of the invention;

Fig. 7 is the structural representation of second embodiment of the invention driving mechanism for washing machine;

Fig. 8 is the explosive view (not shown arrangement of clutch) of the reducing gear of second embodiment of the invention;

Fig. 9 is the structural representation of the terminal pad of second embodiment of the invention;

Figure 10 is the right side view of terminal pad shown in Figure 9;

Figure 11 is the structural representation of the spur gear of second embodiment of the invention;

Figure 12 is the explosive view of arrangement of clutch, dehydration axle sleeve and the ring gear part of first and second embodiment of the present invention;

Figure 13 is the structural representation of the clutch gear ring of first and second embodiment of the present invention;

Figure 14 is the structural representation of the driving mechanism for washing machine of third embodiment of the invention;

Figure 15 is the blast structural representation of Figure 14;

Figure 16 is the structural representation of the part assembly of third embodiment of the invention;

Figure 17 is the structural representation of the magnetic conductive part of third embodiment of the invention;

Figure 18 is the blast structural representation of Figure 17;

Figure 19 is the structural representation of the clutch gear ring (not showing magnetic conduction iron hoop 912) of third embodiment of the invention;

Figure 20 is the structural representation of rotor inserts of the present invention;

Figure 21 is the structural representation of ring gear of the present invention;

Figure 22 is the vertical view of ring gear of the present invention;

Figure 23 is the front view of driving mechanism for washing machine of the present invention;

Figure 24 is the direction of rotation schematic diagram of reducing gear of the present invention and each part of wash shaft;

Figure 25 is the A place structure for amplifying schematic diagram of Figure 14;

Figure 26 is the structural representation of motor stator component 2 of the present invention;

Figure 27 is the structural representation of stator punching among Figure 26;

Figure 28 is the structural representation of motor rotor component 3 of the present invention;

Figure 29 is the structural representation of Figure 26 rotor punching;

Figure 30 is the B place structure for amplifying schematic diagram of Figure 29;

Figure 31 is the principle schematic (not shown hysteresis damper) of fourth embodiment of the invention driving mechanism for washing machine.

Description of reference numerals: 1-housing unit; 2-stator (assembly); The 21-stator punching; The 211-stator slot; Circular hole in the 212-stator; The 213-stator tooth; 214-stator punching self-locking hole; The 22-stator winding; Ф D2-stator punching external diameter; Ф Di2-stator punching internal diameter; The t2-stator slot facewidth; Equivalent yoke with the stator punching excircle at the bottom of the h2-stator slot is high; 3-internal rotor (assembly); The 36-rotor punching; The 361-peariform slot; The peariform slot of 361-0-opening shape; 362-extension inserted tooth; 363-rotor punching self-locking hole; 37-cast aluminium end ring; The 371-double wedge; The 372-balance weight; 38-rotor inserts; Ф Di1-rotor punching internal diameter; Ф D1-rotor punching external diameter; The t1-peariform slot facewidth; Yoke with the rotor punching inner periphery at the bottom of the h1-peariform slot is high; The 4-eccentric bushing; The 5-wash shaft; The 6-spur gear; The 7-ring gear; The 8-jockey; The 9-arrangement of clutch; The 11-housing; The 110-louvre; The 12-electric motor end cap; 13-motor bolt; The 14-mounting disc; The 15-hysteresis damper; The 150-screw; The 151-permanent magnet; 151-1-permanent magnet retainer; The 151-2-permanent magnetic steel; The 152-magnetic conductive part; 152-1-magnetic conductive part body; 152-2-injection moulding installed part; The 153-baffle plate; The 154-draw-in groove; The 155-step surface; The 16-Hall subassembly; The 17-magnetic ring component; The 18-sealing ring; The 20-axle sleeve that dewaters; The 31-bogie; The 32-inner chamber; The 33-latch; 34-rotor (assembly) body; 35-rotor inserts; The 351-cylinder; The 352-base; 41-eccentric bushing body; 42-the first body; 43-the second body; The 44-through hole; 411-extension limit; 40-spur gear axis; 50-wash shaft axis; 51-input gear axle; 52-the first input gear; The 53-idler gear; 54-the second input gear; The 55-output gear; The 60-external tooth; 62-gear groove; The 61-connecting shaft hole; The 63-steel ring; The 71-upper connector; Connector under the 72-; 201-axle sleeve groove; The 711-external splines; The 712-tongue; The 721-internal tooth; 722-boss with holes; The 723-reinforcement; 81-terminal pad body; The 82-through hole; The 83-connecting axle; The 831-roll sleeve; The 84-cylinder; The 85-crosshead shoe; The 86-positioning sliding block; 851-disk body; The 852-lower convex platform; The 853-convex platform; 861-slide block body; The 862-otic placode; The 863-groove; The 100-bearing; The 200-spring; 91-clutch gear ring; The 92-solenoid; The 93-coil holder; The 94-coil retainer; The 95-insulation protective jacket; The 911-internal spline; 912-magnetic conduction iron hoop; The 913-teeth groove; The upper latch of 914-.

Embodiment

Core of the present invention is a kind of motor assembly, shown in Fig. 1,7,14, comprise stator module 2, be installed on the rotor assembly 3 within the stator module, wherein: also comprise: be arranged at rotor assembly 3 reducing gear inner and that the output speed of rotor assembly 3 is slowed down and processes, be used for obtaining eccentric rotational kinetic energy from the rotor assembly center position, and export the power that its rotating speed is lower than described rotor speed; Connect the deceleration output shaft of described reducing gear, under the effect of described reducing gear outputting power, slowly run; The output sleeve that connects described reducing gear, it is outside that it is sheathed on described deceleration output shaft; Described motor is 8 utmost point induction machines;

Shown in Figure 28-30, described rotor assembly 3 comprises that rotor core and one be located at the cast aluminium end ring 37 at rotor core two ends, described rotor core is overrided to form by several rotor punching 36 torsional angles, described rotor punching 36 has internal diameter and external diameter, and uniform 52 peariform slots 361 of rotor punching 36 peripheries, described rotor punching internal diameter Ф Di1 scope is at 70-90mm, and described rotor punching external diameter Ф D1 scope is at 118-124mm; Described peariform slot facewidth t1 scope is at 4.2-4.8mm, at the bottom of the described peariform slot with the high h1 scope of yoke of rotor punching inner periphery at 8-12mm; Described rotor core inner periphery is provided with 12 extension inserted tooths 362, described rotor assembly 3 also comprises the rotor inserts 38 of plastic material preparation, described rotor inserts 38 is inlaid in described rotor assembly body 34 inside by Shooting Technique, described extension inserted tooth 362 is used for chimeric connection the between rotor assembly body 34 and the rotor inserts 38, with increase inlay resultant force between the two; Described cast aluminium end ring 37 two ends are provided with several axially extended double wedges 371, when rotor assembly 3 rotation, described double wedge 371 is followed rotor assembly 3 and is together rotated, effectively play heat sinking function, dynamic equilibrium in order to ensure rotor assembly 3, can balance weight 372 be installed at correct position, as will install balance weight 372 be installed on as described on the double wedge 371, the material of balance weight can be metal material; Described rotor punching 36 is provided with 8 rotor punching self-locking holes 363, and described rotor punching self-locking hole 363 laminates rotor punching 36 and is integrated; The peariform slot 361 of the described rotor punching shape of remaining silent, and comprise that 1 is used for the peariform slot 361-0 that torsional angle laminates location usefulness opening shape, the peariform slot 361-0 of described opening shape is convenient to laminate in rotor assembly 3 torsional angles the positioning function of the original position of technique;

Shown in Figure 26,27, described stator module 2 comprises the stator core with stator slot 211, and the stator winding 22 that is positioned at stator slot, described stator core is overrided to form by the toroidal stator punching 21 that several have circular hole 212 in the stator, described stator punching 21 48 stator tooths 213 of radial distribution on circular hole 212 circumference in stator, form 48 stator slots 211 between each adjacent stators tooth 213, described stator punching external diameter Ф D2 scope is at 176mm, and stator punching internal diameter Ф Di2 scope is at 118-124mm; Described stator slot facewidth t2 scope is at 0.3-0.45mm, at the bottom of the described stator slot with the high h2 scope of equivalent yoke of stator punching excircle at 0.65-0.75mm; Described stator punching 21 is provided with 8 stator punching self-locking holes 214, and described stator punching self-locking hole 214 laminates stator punching and is integrated;

Described motor gas-gap scope is at 0.25-0.35mm, and namely the air gap scope between described stator module 2 and the rotor assembly 3 is at 0.25-0.35mm.

Core of the present invention is also to provide this motor applied driving mechanism for washing machine, has that axial dimension is little, compact conformation, little advantage takes up room.Shown in Figure 23 is the front view of driving mechanism for washing machine of the present invention, Fig. 1, Fig. 7 are the cutaway view of two embodiment of driving mechanism for washing machine shown in Figure 23, such as Fig. 1, shown in Figure 7, described driving mechanism for washing machine comprises the dehydration execution unit that connects respectively washing machine and dehydration axle sleeve 20 and the wash shaft 5 of washing execution unit, the output shaft of described reducing gear becomes wash shaft 5, and described output sleeve becomes dehydration axle sleeve 20.

Among the present invention, the internal rotor 3 of motor is by providing rotational kinetic energy around the axis rotation that is positioned at self center, be provided with the reducing gear that the output speed of internal rotor is carried out variable-speed processing in internal rotor inside, because reducing gear links to each other with internal rotor, therefore reducing gear at internal rotor in the process that axis rotates, obtained rotational kinetic energy, because the eccentric bushing that is connected with internal rotor in the reducing gear carries out eccentric rotary around the internal rotor axis, therefore other part that drives in the reducing gear also carries out eccentric rotary around the internal rotor axis, and is the power output that rotating speed is equal to or less than the internal rotor rotating speed with the power-conversion behind the eccentric rotary.Because reducing gear links to each other with wash shaft, and the washing execution unit of an end of wash shaft and washing machine is (such as impeller or blender, hereinafter herewith, repeating no more) (not shown) links to each other, and the outer cover in wash shaft is provided with the dehydration axle sleeve 20 that is rotationally connected with it, the dehydration execution unit of dehydration axle sleeve and washing machine is (such as interior bucket, not shown) link to each other, thereby under the effect of reducing gear outputting power, wash shaft is supplied to respectively corresponding execution unit with the dehydration axle sleeve with the described power that is equal to or less than the internal rotor rotating speed, and then makes the washing machine that driving mechanism for washing machine of the present invention is installed finish the function of laundry.

In the present invention, shown in Figure 23,1,7, stator 2(is arranged with the alleged stator module 2 of this patent in housing unit 1 positioned inside, hereinafter herewith, repeat no more), being useful in stator 2 positioned inside provides the internal rotor of rotational kinetic energy 3(with the alleged rotor assembly 3 of this patent, hereinafter herewith, repeats no more).Internal rotor of the present invention comprises bogie 31 and is located at the cavity 32 of bogie inside, so the rotating speed of internal rotor is the rotating speed of bogie, and the rotating shaft of bogie is its symmetry axis.Wherein, reducing gear is installed in the cavity of bogie inside, and this reducing gear comprises: be installed in the described cavity and connect bogie 31 and around the eccentric bushing 4 of bogie axis rotation, its under the drive of bogie with the synchronized rotation of bogie; Be set in eccentric bushing spur gear 6 outside and that be rotationally connected with its formation, it revolves round the sun around the bogie axis along with the rotation of eccentric bushing, and wherein, spur gear links to each other with wash shaft 5 by jockey, thus with transmission of power of its rotation generation to wash shaft; The ring gear 7 that connects dehydration axle sleeve 20, be mounted with spur gear in it, so that spur gear during revolving round the sun with the engagement of the internal tooth of ring gear and produce rotation, and ring gear with the process of spur gear engagement in also rotate accordingly, and give the dehydration axle sleeve with transmission of power; In addition, the present invention also comprises the arrangement of clutch for control washing of drum type washing machine and dehydration condition conversion, it is arranged at housing unit inside, and be set in axially slidably on the outer wall of ring gear, carry out engagement connection by endwisely slipping with the latch of being located at bogie one end or break away from latch, thereby so that the rotating speed of reducing gear output is equal to or less than the rotating speed of bogie, be the washing operating mode when being lower than the rotating speed of bogie, be the dehydration condition of High Rotation Speed when equaling the rotating speed of bogie.

In the reducing gear of the present invention, by jockey spur gear is connected on the wash shaft, and jockey of the present invention has different version, be elaborated below in conjunction with specific embodiment 1 and embodiment 2.

Embodiment 1

As shown in Figure 1, 2, for the jockey in the driving mechanism for washing machine of the present invention be the structural representation of slide block structure.

As shown in Figure 1, the motor of present embodiment is inner rotor motor mentioned above.Wherein, housing unit 1 comprises: the tubular shell 11 of both ends open, the electric motor end cap 12 that is connected with housing 11 bottoms, the mounting disc 14 that is positioned at the housing top and is connected by motor bolt 13 with electric motor end cap 12, and housing 11, electric motor end cap 12 and mounting disc 14 surround an inner space that is used for settling other parts such as stator 2 and internal rotor 3.

The internal rotor 3 of present embodiment comprises bogie 31 and is located at the cavity 32 of bogie inside, and is provided with latch 33 at the top of bogie end face.Concrete, such as Fig. 1, shown in Figure 20, the bogie of present embodiment comprises that the rotor body 34((of tubular is with the alleged rotor assembly body 34 of this patent, hereinafter herewith, repeat no more) and be positioned at the rotor inserts 35 of rotor body, its rotor inserts comprises: the cylinder 351 of both ends open, its top are provided with upwardly extending latch 33; Be positioned at the base 352 of cylinder bottom, and a base plate through holes is offered at the center of base.Cylinder in the rotor inserts and base are configured for settling the cavity 32 of reducing gear jointly, and wash shaft is passed the center of described base plate through holes, have the rotating shaft identical with wash shaft when therefore bogie rotates, namely the rotation of bogie overlaps with the rotation of wash shaft.

In the present embodiment, as shown in Figure 2, be mounted with reducing gear in the cavity of internal rotor, this reducing gear comprises eccentric bushing 4, spur gear 6, ring gear 7 and jockey 8.

Wherein, the eccentric bushing in the reducing gear is fixedly connected with bogie 31, and eccentric bushing is around the rotating shaft rotation of bogie.As shown in Figure 6, this eccentric bushing comprises and the second body of bogie coaxial line rotation and the first body that rotates with bogie off-axis line, wherein the second body can be fixedly connected with for split type with the first body, also can be that integral type is fixedly connected with, for the ease of processing or installation, preferably, as shown in Figure 2, the second body is the second body 43, the first body comprises the eccentric connector 41 that is connected with the second body top and the first body 42 that is connected with the eccentric connector top, wherein, eccentric connector 41 has with respect to the first body 42 and extends laterally formed extension limit, and be provided with in the second body 43 be used to the eccentric bushing through hole 44 that passes wash shaft, this eccentric bushing through hole extends upward and runs through eccentric connector and the first body.

When the processing eccentric bushing, the first body, eccentric connector and the second body can adopt integrated mode, perhaps adopting the mode such as welding to connect is integrated, and, adding man-hour, should make between the center line of the center line of the first body and the second body to have certain eccentric throw, this eccentric throw can be taken as the poor of the radius of spur gear and ring gear radius.

In the present embodiment, eccentric bushing 4 is fixedly connected with for ease of transmitting being rigidly connected of rotation torque with 31 of bogies, is adding man-hour, and eccentric bushing and bogie can adopt integral type to be connected, also can adopt split type being connected, as connecting by modes such as screw, welding.Preferred concrete mode is: the rotor body 34 of tubular adopts metal material, eccentric bushing 4 adopts metal material, rotor body 34, the eccentric bushing 4 of tubular are put into injection mold or die casting, directly through injection moulding or die cast rotor and eccentric bushing are installed on the rotor inserts 35; More preferably, the outside on the extension limit 411 of eccentric connector 41 can be provided with several depressions (among Fig. 2 being 4) or chimb in the eccentric bushing 4, thereby the adhesion when increasing eccentric bushing 4 with bogie 31 injection mouldings or die casting is easy to rigidly fix the needs that are connected between eccentric bushing 4 and the bogie 31.

When bogie rotates, be connected in also thereupon coaxial, synchronized rotation of eccentric bushing in its rotor inserts base plate through holes by the second body, thereby drive with eccentric bushing in the spur gear that is rotationally connected of the first body 42 also rotate accordingly thereupon.

As shown in Figure 5, the spur gear 6 of present embodiment comprise steel ring 63 and be positioned at the steel ring outside and with the external tooth 60 of its integrated injection molding, and the upper surface of spur gear also is provided with a pair of radially relative gear groove 62.Wherein, the first body in steel ring and the eccentric bushing is rotationally connected, concrete mode is: the inner ring of the outer wall of the first body 42 and oiliness bearing 100 is connected in the interference mode, and the upper end on eccentric connector extension limit is connected with the bottom contact on oiliness bearing 100 extension limits, and the outer ring of oiliness bearing 100 is connected with the gap fiting mode contact with the inwall of spur gear; Perhaps, also can adopt the outer wall of the first body 42 is that gap fiting mode is connected with the inner ring of oiliness bearing 100, and the upper end on eccentric connector extension limit is connected with the bottom contact on oiliness bearing 100 extension limits, and the outer ring of oiliness bearing 100 is connected with the interference fit contact with the inwall of spur gear.Natch, also spur gear 6 directly can be adopted metallic sintered products, avoid above-mentioned steel ring injection molding type structure.

Natch, be connected for realizing that eccentric bushing 4 relatively rotates with spur gear, also can adopt following concrete mode: eccentric bushing 4 self structure are improved, as adopt powdered metallurgical material, so that eccentric bushing 4 itself possesses the function of oiliness bearing 100, avoid the independent use of oiliness bearing 100, thereby steel ring and eccentric bushing with the oiliness bearing function own are rotationally connected.

Preferably, can be provided with some material reducing grooves in the inside of the first body 42 to reduce manufacturing cost, also can in the material reducing groove, add simultaneously an amount of material that plays lubricating function, such as lubricating oil, oil cotton, increase the useful life of eccentric bushing.

When eccentric bushing rotates, under driving, it carries out the revolution of identical direction of rotation with it with the spur gear that the first body on it is rotationally connected, and because the first body in the eccentric bushing and the centreline spacing of the second body have certain eccentric throw, and the rotation of the first body and bogie dead in line, therefore when spur gear revolves round the sun, be actually and carrying out eccentric rotation around the bogie axis.

Spur gear is in the revolution process, because therefore its external tooth and ring gear engagement can pass to ring gear with its rotary power.The ring gear of present embodiment is metal or plastic fastening, and in order to save manufacturing cost, preferably, ring gear adopts integrated injection molding spare, and this metal or plastic fastening comprise upper connector 71 and be arranged on its lower end and connected lower connector 72.Such as Figure 21 and shown in Figure 22, upper connector is housing, and its outer wall is provided with the external splines 711 along its axial distribution, and its inwall is provided with a plurality of tongues 712 along its axial distribution; And lower connector 72 is tubular structure, its top and upper connector are connected, wall is embedded with internal tooth 721 within it, and also is provided with a plurality of reinforcements 723 in the junction of itself and upper connector, and also is provided with a plurality of boss with holes 722 for settling spring 200 723 of adjacent reinforcements.

As shown in figure 12, a plurality of tongues in the upper connector are complementary with a plurality of axle sleeve grooves 201 that are located at dehydration axle sleeve outer wall, thereby ring gear and dehydration axle sleeve are connected to one, in addition, also can adopt metal connecting piece is realized being rigidly connected with the dehydration axle sleeve by laser welding or other modes, in the present embodiment, the internal tooth 721 that is positioned at lower connector 72 inwalls can adopt plastics to make, and also can adopt metal to make.

When spur gear when revolving round the sun (namely carrying out eccentric rotary around the bogie axis), its external tooth can mesh with the internal tooth of ring gear, thereby under the interaction force of gear engagement, so that spur gear produces rotation, and the direction of rotation of this moment and the opposite direction of its revolution, simultaneously because there is the poor relation of tooth in the interior between cog of its external tooth and ring gear, therefore so that spur gear can produce speed difference when rotation and revolution, be the speed of the time rotational speed when being lower than revolution, thereby make the rotating speed of its output be lower than the rotating speed of bogie.Accordingly, owing to have interaction force between ring gear and spur gear, therefore so that ring gear also can rotate at the spur gear time rotational, just the direction of rotation of ring gear is opposite with the sense of rotation of spur gear at this moment, that is to say, this moment, the direction of rotation of ring gear was identical with the direction of rotation of bogie, and the rotating speed of ring gear also is lower than the rotating speed of bogie at this moment.

To sum up, spur gear the eccentric bushing of rotation and with its comprehensive function power by the ring gear of gear engagement under, revolve round the sun simultaneously and rotation, and the direction of its rotation and revolution opposite direction, the rotating speed of time rotational is lower than the rotating speed of bogie; And ring gear is also under the effect of respective action power, carries out opposite with the spur gear sense of rotation and is lower than rotatablely moving of bogie rotating speed.

When spur gear in low speed rotation process, its by slide block structure with transmission of power to wash shaft.The slide block structure of present embodiment comprises: pass the crosshead shoe 85 of wash shaft, the upper surface of its lower surface and spur gear is slidingly connected; With the positioning sliding block 86 that the upper surface of crosshead shoe is slidingly connected, its center and wash shaft are connected.Wherein, as shown in Figure 4, crosshead shoe comprises: the disk body 851 of wash shaft is passed at the center; Be arranged at respectively disk body lower surface and radially relative a pair of lower convex platform 852; Be arranged at respectively disk body upper surface and radially relative a pair of convex platform 853, its extended line becomes the space cross distribution with a pair of lower convex platform extended line.As shown in Figure 3, positioning sliding block comprises: tubular slide block body 861, and its center and wash shaft are connected; Be located at slide block body both sides and along its radially opposing a pair of otic placode 862 that stretches out, be respectively equipped with the groove 863 that is complementary with a pair of convex platform on it.Preferably, the upper surface of spur gear is provided with radially relative a pair of gear groove, and its position with a pair of lower convex platform is corresponding.

Concrete, as shown in Figure 5, in the present embodiment, in a pair of gear groove 62 of spur gear upper surface, settling respectively a pair of lower convex platform in the crosshead shoe 85, and a pair of lower convex platform can slide in a pair of gear groove corresponding with its position respectively; A pair of convex platform in the crosshead shoe 85 is placed in respectively a pair of groove 863 that is positioned at the positioning sliding block lower surface, and a pair of convex platform can slide in a pair of groove respectively; The slide block body center of positioning sliding block is fixedly connected with wash shaft, thus so that the central lines of the center line of positioning sliding block and wash shaft.

When spur gear low speed time rotational, a pair of gear groove 62 on it is synchronized, rotating Vortex thereupon, thereby drive a pair of lower convex platform 852 that is placed in a pair of gear groove rotates thereupon, the i.e. whole and then spur gear of crosshead shoe this moment rotation, under the effect of centrifugal force, a pair of lower convex platform on the crosshead shoe and a pair of convex platform radially slide in a pair of gear groove and a pair of groove 863 respectively, and the process of sliding is by the motion process of spur gear axis 40 directions towards wash shaft axis 50 directions.Because a pair of convex platform in the crosshead shoe slides and is placed in a pair of groove 863 of positioning sliding block, drive the groove rotation when therefore convex platform rotates, namely drive the positioning sliding block rotation, because center and the wash shaft of positioning sliding block are connected, thus when positioning sliding block rotates the drive wash shaft with its carry out with spur gear in the same way, synchronized rotatablely moving.

Can be found out by Fig. 2 and Figure 24, when spur gear rotates around the wash shaft eccentric axis, pass through slide block structure, the power that the spur gear time rotational can be produced around 40 rotations of spur gear axis, being converted into wash shaft is the bogie axis around wash shaft axis 50() power of rotation, be about to spur gear and be converted into output with the wash shaft axis coaxle around the output of wash shaft eccentric axis rotation.

Because washing machine has different washing operating modes when work, thereby need to be according to the different needs output speed of regulating reducing gear of washing operating mode, as when the washing, the output speed that needs reducing gear is low speed, and when dehydration, need the output speed of reducing gear to be high speed.Therefore in the present embodiment, driving mechanism for washing machine also comprises an arrangement of clutch 9, this arrangement of clutch is arranged in the internal cavities of housing unit formation, and be set in axially slidably on the outer wall of ring gear, its by be located at latch 33 engagement connections on bogie one end face or break away from latch, thereby so that reducing gear carries out high speed or low-speed motion, and then the change working of realization washing machine.

Concrete, the arrangement of clutch in the present embodiment is electromagnetic clutch device, it comprises solenoid mechanism and the clutch gear ring 91 that is fixed in the housing unit, and solenoid mechanism is placed in the outside of clutch gear ring.

Wherein, solenoid mechanism comprises solenoid 92, coil holder 93 and coil retainer 94.Coil retainer is fixedly mounted in the mounting disc 14 in the housing unit, and coil holder is installed in the coil retainer, and the solenoid winding is on coil holder.

Wherein, clutch gear ring 91 comprises upper end connecting portion and lower end connecting portion, and the upper end connecting portion can be fixedly connected with for split type with the lower end connecting portion, also can be that integral type is fixedly connected with.For the ease of processing or installation, preferably, as shown in figure 13, the upper end connecting portion is tubular structure, its inwall is provided with internal spline 911, and its outer wall is established the magnetic conduction iron hoop 912 with its integrated injection molding, and the external splines 711 on internal spline 911 and the annular gear outer-wall is slidingly matched, and the magnetic conduction iron hoop matches with solenoid, can be away from solenoid under the magneticaction of solenoid; The bottom end face of lower end connecting portion is provided with a plurality of double wedges spaced apart, form teeth groove 913 between each adjacent double wedge, and this teeth groove 913 is complementary with the latch 33 of being located on bogie one end face, preferably, the position is provided with some material reducing grooves (illustrating, unmarked) to reduce manufacturing cost around the connecting portion of lower end.Preferably, engage in order to ensure firm between clutch gear ring and the bogie, the shape of described latch 33 and double wedge can be skewed.

When solenoid is switched on, under the effect of solenoid magnetic field repulsive force, the magnetic conduction iron hoop is moved downward so that away from solenoid, and the upper end connecting portion of magnetic conduction iron hoop and clutch gear ring is connected, thereby under the drive of magnetic conduction iron hoop, so that whole clutch gear ring 91 is along the annular gear outer-wall down sliding and arrive its second position location, the teeth groove of clutch this moment gear ring lower end connecting portion and the latch on the bogie are connected with a joggle, therefore, ring gear obtains the rotating speed identical with bogie, and make reducing gear be in locking state, be the dehydration condition of washing machine; On the contrary, when solenoid cuts off the power supply, the clutch gear ring is under the effect of the restoring force that is installed on the ring gear upper spring, along the annular gear outer-wall upward sliding and arrive its first position location, the teeth groove of lower end connecting portion is separated with latch on the bogie, and then make reducing gear enter operating state, be the washing operating mode of washing machine.

The below specifically narrates the course of work of washing machine in washing and dehydration condition situation with present embodiment driving mechanism for washing machine.

When washings is washed, solenoid outage this moment, the closed magnetic circuit that forms between solenoid and the clutch gear ring disappears, the clutch gear ring no longer is subject to the effect of electromagnetic repulsive force, therefore under the effect of spring restoring force, the clutch gear ring moves up along annular gear outer-wall, thereby the latch of a plurality of teeth groove of being arranged on clutch gear ring lower end connecting portion and bogie one end is broken away from, and then makes reducing gear enter operating state:

As shown in figure 24, when bogie (is the wash shaft axis 50 shown in Figure 24 along counter clockwise direction shown in Figure 24 around the bogie axis, for convenience, below all this axis is referred to as the wash shaft axis) when rotating, drive and be rotated around the wash shaft axis with the speed identical with it in the counterclockwise direction with it with its eccentric bushing that is connected 4, and the spur gear that rotarily drives of eccentric bushing carries out eccentric revolution around the wash shaft axis, when spur gear in the revolution process, its external tooth is meshed with the internal tooth of ring gear and produces mutual active force, thereby so that spur gear carries out rotation around spur gear axis 40, and the opposite direction of the direction of spur gear rotation and eccentric bushing rotation, as shown in Figure 24, this moment, the direction of rotation of spur gear was clockwise direction, and its rotating speed is lower than the rotating speed of bogie.

Mesh and produce in the process of rotation at spur gear and ring gear, ring gear is rotated under its effect, because the internal tooth of ring gear and the outer between cog of spur gear exist tooth poor, therefore ring gear carries out low speed rotation, counter clockwise direction as shown in Figure 24 along the direction opposite with the spur gear direction of rotation.And be accompanied by the spur gear rotation, also have the slide block structure in the reducing gear.When spur gear to be lower than the bogie rotating speed when the spur gear axis carries out clockwise rotation, spur gear by establish with its on a pair of gear groove 62 transmission of power is placed in a pair of lower convex platform 852 in a pair of gear groove to slip, thereby so that crosshead shoe is along with spur gear carries out clockwise rotation, and then drive is carried out clockwise rotation by the positioning sliding block that a pair of convex platform on a pair of groove 863 and the crosshead shoe is slidingly connected, because center and the wash shaft of positioning sliding block are connected, carry out clockwise rotation thereby when positioning sliding block turns clockwise, drive wash shaft with it, shown in arrow the most inboard among Figure 24.

As shown in Figure 24, in the washing operating mode, when the bogie High Rotation Speed, reducing gear by present embodiment, can make the dehydration axle sleeve that is connected with ring gear and the impeller that is connected with wash shaft obtain the rightabout low-speed motion that is lower than the bogie rotating speed, need the difficult problem that axle sleeve is fixed and need to consume mass energy of dewatering when washing thereby solved in the prior art.

When washings is dewatered, the at this moment solenoid energising in the arrangement of clutch, the magnetic conduction iron hoop 912 of solenoid and clutch gear ring arranged outside interacts and can form the magnetic circuit of a closure, this moment the clutch gear ring under the effect of electromagnetic repulsive force along annular gear outer-wall down sliding (in such as Fig. 1 downward direction), and the clutch gear ring will be arranged on the spring-compressed in the ring gear in sliding process, and the latch engagement connection that makes a plurality of teeth groove of being arranged on clutch gear ring lower end connecting portion and bogie one end together, thereby so that clutch gear ring and bogie connect as one, and then dehydration axle sleeve and bogie are connected as one, and then reducing gear is no longer worked on, but become as a whole and the common High Rotation Speed of motor, realize washings is dewatered.

Natch, change by the associated components to reducing gear, such as its jockey, can obtain the direction of rotation wash shaft identical with bogie, the axle sleeve that then dewaters is opposite with the direction of rotation of bogie.

Present embodiment is by being placed in reducing gear internal rotor inside, thereby effectively utilized the inner space of internal rotor, reduced the volume of washing machine, be beneficial to the miniaturization production of washing machine, and, in the present embodiment, adopt slide block structure that spur gear is connected with wash shaft, thereby the off-centre around the wash shaft axis of spur gear is exported the output that is converted into the wash shaft axis coaxle, avoid reducing gear to produce in the course of the work unnecessary vibration.

Embodiment 2

Shown in Fig. 7,8, adopt the structural representation of the driving mechanism for washing machine of terminal pad structure for the present invention.

As shown in Figure 7, the motor of present embodiment is similarly inner rotor motor mentioned above.Wherein, be mounted with the internal rotor with cavity in housing unit, and be mounted with reducing gear in the cavity of internal rotor, this reducing gear comprises eccentric bushing 4, spur gear 6, ring gear 7 and jockey 8, what in the present embodiment, jockey adopted is the terminal pad structure.

In the present embodiment, eccentric bushing in inner rotor motor, housing unit, arrangement of clutch and the reducing gear, ring gear are all identical with embodiment 1, no longer repeat at this, the below only describes with the structure of the spur gear that links to each other with jockey accordingly to jockey.

As shown in figure 11, the spur gear 6 in the present embodiment comprise steel ring 63 and be positioned at the steel ring outside and with the external tooth 60 of its integrated injection molding, and be useful on the connecting shaft hole 61 of settling a plurality of connecting axles 83 at the circumference uniform distribution of steel ring.Wherein, the first body in steel ring and the eccentric bushing is rotationally connected, and concrete connected mode is identical with embodiment 1, no longer repeats at this.

Terminal pad structure in the present embodiment comprises terminal pad and drives a plurality of connecting axles that terminal pad rotates with the terminal pad sliding contact and by frictional force.Concrete, shown in Fig. 8,9,10, terminal pad has the terminal pad body 81 that is plate-like, its center is passed wash shaft and is connected with wash shaft, for strengthen with wash shaft between be connected, can set firmly a cylinder 84 at middle part, the upper surface of terminal pad body, profile of tooth and wash shaft by the cylinder inner wall setting are connected.During fabrication, terminal pad body and cylinder are one-body molded, perhaps adopt the mode of welding to connect and are integrated.Even circumferential at the terminal pad body is distributed with a plurality of through holes 82, and a plurality of connecting axle is placed in respectively in each through hole and with its sliding contact.Concrete, an end of each connecting axle is placed in the through hole of terminal pad body, and slides along the inwall of through hole, and the other end fixed in position of each connecting axle is in a connecting shaft hole of spur gear.In the present embodiment, the through hole on the terminal pad body and the quantity of connecting axle are six, and the internal diameter of through hole is greater than the external diameter of connecting axle.When mounted, first the described other end of six connecting axles is distinguished fixed in position in six connecting shaft holes of spur gear, end with six connecting axles is placed in respectively in six through holes of terminal pad body again, the outer surface of guaranteeing simultaneously six connecting axles respectively and the inwall of six through holes corresponding with its position tangent.

Reducing gear in the present embodiment is to transmit by the rotary power of following motion with internal rotor.

When the solenoid in the arrangement of clutch cuts off the power supply, washing machine enters the washing state: at this moment, the closed magnetic circuit that forms between solenoid and the clutch gear ring disappears, the clutch gear ring no longer is subject to the effect of electromagnetic repulsive force, therefore under the effect of spring restoring force, the clutch gear ring moves up along annular gear outer-wall, thereby the latch of a plurality of teeth groove of being arranged on clutch gear ring lower end connecting portion and bogie one end is broken away from, and then makes and enter following operating state in the reducing gear:

As shown in figure 24, when bogie (is the wash shaft axis 50 shown in Figure 24 along counter clockwise direction shown in Figure 24 around the bogie axis, for convenience, below all this axis is referred to as the wash shaft axis) when rotating, drive and be rotated around the wash shaft axis with the speed identical with it in the counterclockwise direction with it with its eccentric bushing that is connected 4, and the spur gear that rotarily drives of eccentric bushing carries out eccentric revolution around the wash shaft axis, when spur gear in the revolution process, its external tooth is meshed with the internal tooth of ring gear and produces mutual active force, thereby so that spur gear carries out rotation around spur gear axis 40, and the opposite direction of the direction of spur gear rotation and eccentric bushing rotation, as shown in Figure 24, this moment, the direction of rotation of spur gear was clockwise direction, and its rotating speed is lower than the rotating speed of bogie.

Mesh and produce in the process of rotation at spur gear and ring gear, ring gear is rotated under its effect, because the internal tooth of ring gear and the outer between cog of spur gear exist tooth poor, therefore ring gear carries out low speed rotation, counter clockwise direction as shown in Figure 24 along the direction opposite with the spur gear direction of rotation.And be accompanied by the spur gear rotation, also has the terminal pad structure in the reducing gear, its rotation along with spur gear is rotated accordingly, and drive wash shaft carry out synchronized with spur gear, with the rotation of direction of rotation, and, make spur gear around the off-centre output that the rotation of wash shaft eccentric axis produces, be converted into along the output of wash shaft axis direction.

Concrete, spur gear is in the process of eccentric rotary, be packed in six connecting shaft holes of spur gear six connecting axles also with its synchronous rotary, because the other end of six connecting axles is against on the inwall of six through holes of terminal pad body and moves in a circle on the wall within it, therefore six connecting axles jointly promote the terminal pad body and make the terminal pad body along with the rotation of spur gear synchronous rotary, and owing to cylinder and the wash shaft of terminal pad body upper surface is connected, therefore when the terminal pad body rotates, can drive thereupon synchronous rotary of wash shaft, thereby the output that departs from the wash shaft axis direction that has produced when having realized the spur gear eccentric rotary is converted into and the output in the same way of wash shaft axis.

When the solenoid in the arrangement of clutch is switched on, washing machine enters dewatering state: the magnetic conduction iron hoop 912 of solenoid and clutch gear ring arranged outside interacts and can form the magnetic circuit of a closure at this moment, this moment the clutch gear ring under the effect of electromagnetic repulsive force along annular gear outer-wall down sliding (in such as Fig. 1 downward direction), and the clutch gear ring will be arranged on the spring-compressed in the ring gear in sliding process, and the latch engagement connection that makes a plurality of teeth groove of being arranged on clutch gear ring lower end connecting portion and bogie one end together, thereby so that clutch gear ring and bogie connect as one, and then dehydration axle sleeve and bogie are connected as one, thereby so that clutch gear ring and bogie connect as one, and then reducing gear is no longer worked on, but become as a whole and the common High Rotation Speed of motor, realize washings is dewatered.

Other parts that do not relate in the present embodiment are all identical with structure among the embodiment 1, and operation principle is also identical, no longer repeats at this.

Embodiment 3

Present embodiment 3 is as the further preferred embodiment of embodiment 1 and embodiment 2, and in order to improve clean result, present embodiment provides the washing methods that adopts hysteresis damper and uses driving mechanism for washing machine.

The washing methods of present embodiment is on aforesaid washing methods content basis, also have step: the outside installation of described dehydration axle sleeve is connected with hysteresis damper, hysteresis damper can produce damping force to the dehydration axle sleeve, so that the rotary speed of described dehydration axle sleeve is equal to or less than the rotary speed of described wash shaft, guarantee clean result.

The driving mechanism for washing machine of present embodiment is on aforesaid driving mechanism for washing machine content basis, also comprise: the outside installation of described dehydration axle sleeve is connected with hysteresis damper, hysteresis damper can produce damping force to the dehydration axle sleeve, so that the rotary speed of described dehydration axle sleeve is equal to or less than the rotary speed of described wash shaft

As shown in Figure 14, the motor of present embodiment is similarly inner rotor motor mentioned above.Wherein, in housing unit, be mounted with the internal rotor with cavity, and in the cavity of internal rotor, be mounted with reducing gear, wherein, comprise eccentric bushing 4, spur gear 6, ring gear 7 and jockey 8.

In the present embodiment, eccentric bushing in inner rotor motor, housing unit and the reducing gear, spur gear, ring gear and jockey are all identical with embodiment 2, no longer repeat at this, the below only specifically describes accordingly to (washing machine) driving mechanism that hysteresis damper, connected arrangement of clutch and hysteresis damper are used.

Such as Figure 14-shown in Figure 15, the structure of hysteresis damper 15 and installation are closed and be: hysteresis damper 15 is installed in the inside of housing unit, described permanent magnet 151 is fixed on mounting disc 14 bottoms, and be positioned at magnetic conductive part 152 peripheries, carry out magnetic coupling between the two to produce the magnetic hysteresis active force, be also referred to as in the present invention damping force, described magnetic conductive part 152 is installed to be connected with the alternative of realization with the dehydration axle sleeve with arrangement of clutch 9 and is fixedly connected with;

More specifically, such as Figure 15-Figure 18 and shown in Figure 25, described permanent magnet 151 comprises permanent magnet retainer 151-1 and permanent magnetic steel 151-2, the quantity of described permanent magnet retainer is 4 (diagrams), certainly can also can be chosen as greater than 4, or also direct addition integral piece, be respectively equipped with 2 permanent magnetic steels on each permanent magnet retainer, described permanent magnet retainer is fixed on the bottom of mounting disc 14 by screw 150, for ease of installing, the lateral surface of permanent magnet retainer 151-1 is skewed, and is provided with reinforcement material reducing groove, specifically can be referring to Figure 15; Described magnetic conductive part 152 specifically can be selected steel or ferrous material for soft magnetic material is prepared from; Consider for the ease of the insulation function between installation and the installing component, described magnetic conductive part 152 is by magnetic conductive part body 152-1 and chimeric formation of injection moulding installed part 152-2, magnetic conductive part body 152-1 embeds the injection moulding installed part 152-2 outside, it is chimeric to increase adhesion between the two that concrete embedded structure is mainly teeth groove, specifically can be referring to Figure 17,18; Described magnetic conductive part body and permanent magnetic steel carry out magnetic coupling, and described injection moulding installed part is installed with arrangement of clutch and is connected, and described magnetic conductive part body and the concrete preparation technology of permanent magnetic steel can be chosen in direct injection moulding formation injection moulding installed part on the magnetic conductive part body.

Arrangement of clutch in the present embodiment is similarly electromagnetic clutch device, and it comprises solenoid mechanism and the clutch gear ring 91 that is fixed in the housing unit, and solenoid mechanism is placed in the outside of clutch gear ring.

Wherein, solenoid mechanism comprises solenoid 92, coil holder 93 and coil retainer 94.Coil retainer is fixedly mounted in the mounting disc 14 in the housing unit; coil holder is installed in the coil retainer; and the solenoid winding is on coil holder, is positioned at coil retainer, the coil holder periphery also is provided with insulation protective jacket 95, guarantees that solenoid is to the insulation function of coil retainer.Described coil holder 93 is insulating material with insulation protective jacket 95 and is prepared from, and specifically can adopt resin material; Described injection moulding installed part 152-2 is set in coil retainer 94 outsides with gap fiting mode, for magnetic conductive part 152 is carried out axial limiting, be fixedly installed baffle plate 153 in injection moulding installed part upper end, baffle plate 153 is positioned at below, coil retainer 94 ends, particularly, the outside, injection moulding installed part upper end is provided with step, and baffle plate 153 is fixedly installed on by securing member (such as screw) on the step surface 155 of injection moulding installed part, visible Figure 15 of the concrete shape of injection moulding installed part and structure, 17,18.

Wherein, as shown in figure 19, clutch gear ring 91 comprises upper end connecting portion and lower end connecting portion, and the upper end connecting portion can be fixedly connected with for split type with the lower end connecting portion, also can be that integral type is fixedly connected with.The structure of clutch gear ring 91 is except increasing following structure, and therefore all the other structures no longer specifically give unnecessary details with embodiment 1 described structure:

In order to realize that magnetic conductive part is fixedly connected with the alternative of dehydration axle sleeve, be provided with the lower end madial wall in the inboard of described injection moulding installed part 152-2 and be provided with a plurality of draw-in grooves spaced apart 154, quantity may be selected to be 6-14, draw-in groove 154 is formed by a plurality of double wedges spaced apart equally, the upper surface, bottom of the lower end connecting portion of described clutch gear ring 91 is provided with the upper latch 914 that matches with draw-in groove, during the washing operating mode, the upper latch of clutch gear ring carries out teeth groove with draw-in groove and cooperates, and the realization magnetic conductive part is fixedly connected with the dehydration axle sleeve.

In order to realize that the rotary speed of wash shaft is detected in real time, present embodiment also is provided with velocity measurement mechanisms, specifically comprise the Hall subassembly 16 that is fixed on the coil retainer upper end, and the magnetic ring component 17 that closely is coupled with Hall subassembly, described magnetic ring component comprises the magnet ring body, and it is fixedly installed on described wash shaft by injection moulding.

Simultaneously, in order to ensure the water-proof function of reducing gear, present embodiment also arranges sealing ring 18 between ring gear and bogie; In order to be beneficial to heat radiation and material reducing, if be provided with individual louvre spaced apart 110 at described housing 11; The noise that produces in the course of work in order to reduce spur gear, and improve useful life, present embodiment is at the connecting axle 83 socket roll sleeves 831 of jockey.

The below specifically narrates the course of work of driving mechanism for washing machine in washing and dehydration condition situation with present embodiment.

When washings is washed, solenoid outage this moment, the closed magnetic circuit that forms between solenoid and the clutch gear ring disappears, the clutch gear ring no longer is subject to the effect of electromagnetic repulsive force, therefore under the effect of spring restoring force, the clutch gear ring moves up along annular gear outer-wall, thereby the latch of a plurality of teeth groove of being arranged on clutch gear ring lower end connecting portion and bogie one end is broken away from, and a plurality of upper latch of clutch gear ring lower end connecting portion engages with the draw-in groove of the injection moulding installed part of magnetic conductive part, and then make reducing gear enter operating state, the rotary speed of described wash shaft and described dehydration axle sleeve changes along with the variation of wash load, and the rotary speed of dehydration axle sleeve is less than the rotary speed of described wash shaft, and all the other detailed processes are with embodiment 1 and embodiment 2;

When washings is dewatered, the at this moment solenoid energising in the arrangement of clutch, the magnetic conduction iron hoop of solenoid and clutch gear ring arranged outside interacts and can form the magnetic circuit of a closure, this moment the clutch gear ring under the effect of electromagnetic repulsive force along annular gear outer-wall down sliding (in such as Figure 14 downward direction), and the clutch gear ring will be arranged on the spring-compressed in the ring gear in sliding process, and the draw-in groove of the injection moulding installed part of a plurality of upper latch that is arranged on clutch gear ring lower end connecting portion and magnetic conductive part is broken away from, and a plurality of teeth groove of clutch gear ring lower end connecting portion and the latch engagement connection of bogie one end are together, thereby so that clutch gear ring and bogie connect as one, and then reducing gear is no longer worked on, but become as a whole and the common High Rotation Speed of motor, realize washings is dewatered.

The described hysteresis damper of present embodiment can also possess brake function: when finishing dehydration condition, the wash shaft of described washing machine and dehydration axle sleeve are in common High Rotation Speed state, described hysteresis damper is fixedly connected with again with the dehydration axle sleeve, hysteresis damper is realized the brake function of washing machine so that the rotating speed of dehydration axle sleeve or moment of torsion reduce.

Other parts that do not relate in the present embodiment are all identical with structure among the embodiment 2, and operation principle is also identical, no longer repeats at this.

Embodiment 4 is in driving mechanism for washing machine shown in Figure 31, the reducing gear of present embodiment comprises the input gear axle 51 that is installed in position, described bogie disalignment, and connects the input gear that comprises the first input gear 52 and the second input gear 54 of described input gear axle; The output gear 55 that is connected with a joggle with the second input gear 54 of described input gear; The middle driven wheel 53 that is positioned at outside the bogie and is connected with a joggle with the first input gear 52 of input gear.Other parts that do not relate in the present embodiment can referring to embodiment 1 or embodiment 2 or embodiment 3, no longer repeat at this.

In driving mechanism for washing machine of the present invention, for axial endplay or the displacement that prevents wash shaft, can install a plurality of jump rings and other identical functions parts additional in the suitable position of wash shaft or dehydration axle sleeve; For the ease of installing and load-bearing, can install in the suitable position of wash shaft pad and other identical functions parts additional; For normal delivery and the installation of satisfying drive connection of the present invention, can a plurality of oiliness bearings and a plurality of ball bearing be set at different parts, as between wash shaft and dehydration axle sleeve, a plurality of oiliness bearings being set, between ring gear and dehydration axle sleeve, between mounting disc and the dehydration axle sleeve and between electric motor end cap and the wash shaft a plurality of ball bearings are set, more specifically, described ball bearing can be deep groove ball bearing.Preferably, between the ball bearing between electric motor end cap and the wash shaft and wash shaft, can be provided for playing the lining of oiliness bearing function.In order to prevent that washings from entering in the housing unit along wash shaft, dehydrating shaft cover and mounting disc, between wash shaft and dehydration axle sleeve, little water seal is set, between dehydration axle sleeve and mounting disc, large water seal is set.Preferably, the beam that plastic material or elastomeric material are prepared from is installed in damping noise abatement when being implemented in work additional between each build-up member, and under the condition that satisfies installation strength or correlation function, housing unit is adopted casting aluminium material, or adopt plastics to be prepared from ring gear; Preferably, reduce cost in order to realize material reducing, and satisfy simultaneously the strength of parts needs, the reinforcement of various shapes on each corresponding component; And the concrete mode that is fixedly connected with, as selecting the securing member connection such as screw etc.

Because each part such as above-described jump ring, pad, oiliness bearing, ball bearing, lining, large water seal, little water seal, damping noise abatement part and reinforcement, and the selection mode that is fixedly connected with is those skilled in the art's customary means, therefore for above part structurally or any change of making on the concrete mode that is fixedly connected with respect to this patent, all be interpreted as not possessing novelty.

Except the driving mechanism for washing machine described in above-mentioned 4 embodiment, the present invention also provides a kind of washing machine, it comprises any driving mechanism for washing machine among embodiment 1 or the embodiment 4, adopt the washing machine of any driving mechanism among above-mentioned 4 embodiment, its compact conformation, volume is little, is convenient to the miniaturization production of product.

Claims (12)

1. a motor assembly comprises stator module, is installed on the rotor assembly within the stator module, it is characterized in that: also comprise:

It is inner and with the reducing gear that the output speed of rotor assembly slows down and processes to be arranged at rotor assembly, is used for obtaining eccentric rotational kinetic energy from the rotor assembly center position, and exports the power that its rotating speed is lower than described rotor speed;

Connect the deceleration output shaft of described reducing gear, under the effect of described reducing gear outputting power, slowly run;

The output sleeve that connects described reducing gear, it is outside that it is sheathed on described deceleration output shaft;

Described motor is 8 utmost point induction machines.

2. motor assembly as claimed in claim 1, it is characterized in that: described rotor assembly comprises that rotor core and one be located at the cast aluminium end ring at rotor core two ends, described rotor core is overrided to form by several rotor punching torsional angles, described rotor punching has internal diameter and external diameter, and uniform 52 peariform slots of rotor punching periphery, described rotor punching inside diameter ranges is at 70-90mm, and described rotor punching external diameter scope is at 118-124mm.

3. motor assembly as claimed in claim 2 is characterized in that: described peariform slot facewidth scope is at 4.2-4.8mm, at the bottom of the described peariform slot with the high scope of yoke of rotor punching inner periphery at 8-12mm.

4. motor assembly as claimed in claim 1, it is characterized in that: described stator module comprises the stator core with stator slot, and the stator winding that is positioned at stator slot, described stator core is overrided to form by the toroidal stator punching that several have circular hole in the stator, described stator punching is at stator inner circle hole circle 48 stator tooths of radial distribution on week, form 48 stator slots between each adjacent stators tooth, described stator punching external diameter scope is at 176mm, and the stator punching inside diameter ranges is at 118-124mm.

5. motor assembly as claimed in claim 4 is characterized in that: described stator slot facewidth scope is at 0.3-0.45mm, at the bottom of the described stator slot with the high scope of equivalent yoke of stator punching excircle at 0.65-0.75mm.

6. motor assembly as claimed in claim 1, it is characterized in that: described motor gas-gap scope is at 0.25-0.35mm.

7. motor assembly as claimed in claim 1, it is characterized in that: described stator module is located at housing unit inside, described housing unit comprises: the tubular shell of both ends open, the electric motor end cap that is connected with the housing bottom, the mounting disc that is positioned at the housing top and is connected by securing member with electric motor end cap, and housing, electric motor end cap and mounting disc surround an inner space that is used for settling the parts such as stator module, rotor assembly and reducing gear.

8. motor assembly as claimed in claim 1, it is characterized in that: described rotor assembly comprises:

Bogie;

Be positioned at the cavity within the described bogie.

9. motor assembly as claimed in claim 8, it is characterized in that: described reducing gear is installed in the described cavity, and comprises:

The eccentric bushing that connects described bogie and rotate around the bogie axis;

Be set in the spur gear that described eccentric bushing is outside and be rotationally connected with it, be used for revolving round the sun around described bogie axis along with the rotation of eccentric bushing;

The ring gear that connects described output sleeve is mounted with described spur gear in it, so that described spur gear produces rotation with the internal tooth engagement of described ring gear during described revolution;

Described spur gear is connected to the jockey of described deceleration output shaft.

10. motor assembly as claimed in claim 8, it is characterized in that: described reducing gear comprises:

Comprise the input gear axle that is installed in position, described bogie disalignment;

The input gear that connects described input gear axle;

The output gear that is connected with a joggle with described input gear;

The middle driven wheel that is positioned at outside the described bogie and is connected with a joggle with described input gear;

Described output gear is fixedly connected with the deceleration output shaft, and described middle driven wheel is fixedly connected with output sleeve.

11. such as claim 9 or 10 described motor assemblies, it is characterized in that: the outside installation of described output sleeve is connected with hysteresis damper, hysteresis damper can produce damping force to output sleeve, so that the rotary speed of described output sleeve is equal to or less than the rotary speed of described deceleration output shaft.

12. an application is such as the driving mechanism for washing machine of motor assembly as described in one of claim 1-11, it is characterized in that: described driving mechanism for washing machine comprises the dehydration execution unit that connects respectively washing machine and dehydration axle sleeve and the wash shaft of washing execution unit, the output shaft of described reducing gear becomes wash shaft, and described output sleeve becomes the dehydration axle sleeve.

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