CN103409971B - A kind of driving mechanism for washing machine and washing machine - Google Patents

Abstract

The invention discloses a kind of driving mechanism for washing machine and washing machine, comprising: be used to provide rotational kinetic energy without rotating shaft rotary body; Be arranged on the speed change gear on described rotary body; Wherein, described speed change gear comprises transmission device, and described transmission device comprises: be fixedly connected with described rotary body and the eccentric bushing rotated around rotary body axis; Be set in described eccentric bushing outside and the spur gear be rotationally connected with it, revolve round the sun around described rotary body axis for the rotation along with eccentric bushing, the axially different position of described spur gear is respectively equipped with the first spur gear section and the second spur gear section; Be fixedly connected with the first output gear of described wash shaft, described first output gear engages with described first spur gear section; Be fixedly connected with the second output gear of described dehydration axle sleeve, described second output gear engages with described second spur gear section; Structure of the present invention is simple, compact, volume is little, easy for installation, and transmission efficiency is high simultaneously, energy consumption is low and noise is little.

Description

A kind of driving mechanism for washing machine and washing machine

Technical field

The invention belongs to washing machine technology field, particularly relate to a kind of driving mechanism for washing machine and washing machine.

Background technology

Washing machine is the machine being made the spot removing be attached on washings by chemical breakdown effect and mechanical shock effect, and it mainly drives impeller to rotate by driving mechanism, stirs current and clothing rotation, reaches the object of washing clothes.The power source of conventional driving mechanism is motor at present, and moment when being rotated by motor by the output shaft of motor passes to deceleration device, then is connected with impeller by the output shaft of deceleration device, thus drives impeller to rotate.

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 adopted makes motor be delivered to decelerator by one-level pulley decelerates at present, arranges the deceleration that one or more levels mechanical reduction gear has carried out a constant-speed ratio in decelerator.This structure is not only complicated, and it is large to take up room.In order to solve this technical problem, having some at present about removal belt pulley, motor is directly 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.

Therefore, how designing a kind of compact conformation, take up room little driving mechanism for washing machine, is the current technical issues that need to address of those skilled in the art.

In order to solve the problems of the technologies described above, the multinomial patent of the applicant's earlier application, as publication number be CN102677427A disclose a kind of washing machine driver in first Chinese patent application, comprise motor, wash shaft, be sleeved on dehydration axle sleeve in described wash shaft and gear reduction, the rotor that described wash shaft is coaxially installed on described motor is inner and affixed with the output gear of described gear reduction, and the input gear axle of described gear reduction is plugged in the axis hole of described rotor.Due to the input gear axle of gear reduction is inserted in the axis hole of rotor, make rotor as the tooth rest of gear reduction, effectively gear reduction and motor are become one, thus reduce the axial dimension of washing machine driver, make the simple and compact for structure of this washing machine driver, take up room little.But this patent adopt some input gear axles are plugged in rotor axis hole in realize input the power of input gear, installs complicated and installation accuracy requirement is higher, more difficultly meet production technology demand, and rotational noise is larger.

For another example application number be 201310032053.7 in first Chinese patent application, disclose a kind of driving mechanism for washing machine, it comprises: be used to provide rotational kinetic energy without rotating shaft rotary body; Being arranged on the speed change gear on described rotary body, for obtaining rotational kinetic energy from rotary body center position, and exporting the power that its rotating speed is equal to or less than described rotary body rotating speed; Connect wash shaft and the dehydration axle sleeve of described speed change gear, the described power being equal to or less than described rotary body rotating speed is supplied to respectively washing and the dehydration execution unit of washing machine under the effect of described speed change gear outputting power; Wherein, the axle sleeve that dewaters is sheathed on wash shaft outside and is rotationally connected with it.Driving mechanism for washing machine of the present invention, speed change gear is arranged on a rotating body providing rotational kinetic energy by it, therefore have compressed the volume of whole driving mechanism, and structure is simple, compact, and save the energy, noise is little.But this patent needs jockey that spur gear is converted into the moment with rotary body axis coaxle from the eccentric moment departing from rotary body axis that eccentric bushing obtains, cause that transmission efficiency is lower, energy consumption is higher and rotational noise is larger.

In sum, these earlier applications of the applicant relative to prior art volume take with compact conformation degree on drive field to bring the breakthrough of change formula for washing machine, but along with the further Application and Development of the applicant finds, all there is installation complexity in driving mechanism for washing machine disclosed in earlier application, installation accuracy requires higher or transmission efficiency is lower, and the problem such as rotational noise is larger, be therefore still necessary to carry out concrete further optimization to the earlier application of the applicant.

Summary of the invention

In view of this, the object of the present invention is to provide a kind of driving mechanism for washing machine and washing machine, structure is simple, compact, volume is little, easy for installation, transmission efficiency is high simultaneously, energy consumption is low and noise is little.

To achieve these goals, based on a large amount of professional knowledges of the several years of product development in driving mechanism for washing machine field and accumulation, simultaneously through great many of experiments, analysis and driving mechanism for washing machine creatively proposed again drive disk assembly after, the applicant has drawn optimisation technique scheme, specifically please see below.

Technical scheme provided by the invention is as follows:

A kind of driving mechanism for washing machine, comprising: be used to provide rotational kinetic energy without rotating shaft rotary body; Being arranged on the speed change gear on described rotary body, for obtaining rotational kinetic energy from rotary body center position, and exporting the power that its rotating speed is equal to or less than described rotary body rotating speed; Connect wash shaft and the dehydration axle sleeve of described speed change gear, the described power being equal to or less than described rotary body rotating speed is supplied to respectively washing and the dehydration execution unit of washing machine under the effect of described speed change gear outputting power; Dehydration axle sleeve is sheathed on wash shaft outside and is rotationally connected with it; For installing the housing unit of driving mechanism for washing machine; Wherein, described speed change gear comprises transmission device, and described transmission device comprises:

Be fixedly connected with described rotary body and the eccentric bushing rotated around rotary body axis; Be set in described eccentric bushing outside and the spur gear be rotationally connected with it, revolve round the sun around described rotary body axis for the rotation along with eccentric bushing, the axially different position of described spur gear is respectively equipped with the first spur gear section and the second spur gear section; Be fixedly connected with the first output gear of described wash shaft, described first output gear engages with described first spur gear section; Be fixedly connected with the second output gear of described dehydration axle sleeve, described second output gear engages with described second spur gear section.

Preferably, described first spur gear section is the first external tooth or the first internal tooth, and described first output gear has the internal tooth or external tooth that engage with described first external tooth or the first internal tooth; Described second spur gear section is the second external tooth or the second internal tooth, and described second output gear has the internal tooth or external tooth that engage with described second external tooth or the second internal tooth.

Preferably, described first spur gear section is the first external tooth, and described first output gear has internal tooth, and described first external tooth is positioned at inside described internal tooth, and engages with internal tooth; Described second spur gear section is the second internal tooth, and described second output gear has external tooth, and described second internal tooth is positioned at outside described external tooth, and engages with external tooth.

Preferably, described spur gear comprises the first spur gear portion with the first spur gear section and the second spur gear portion with the second spur gear section, described first spur gear portion is fixedly formed on described second spur gear end surface, and described first spur gear portion is set in described eccentric bushing outside and is rotationally connected with it.

Preferably, described second output gear comprises the connecting portion and outer gear portion that are fixedly connected with, and described connecting portion is fixedly connected with dehydration axle sleeve, and is positioned at outside described first output gear, and described outer gear portion has described external tooth.

Preferably, described rotary body is rotor or belt pulley.

Preferably, described rotor or belt pulley comprise: bogie; Be positioned at the cavity of described bogie inside, described transmission device is arranged in cavity; Described eccentric bushing connects described bogie and rotates around bogie axis.

Preferably, described motor is PSC motor, comprising: motor stator, the motor internal rotor being positioned at motor stator inside and electric capacity; Described electric capacity is electrically connected with described motor stator, and is arranged on housing unit.

Preferably, described speed change gear also comprises: the electromagnetic clutch device being arranged at described housing unit inside, described electromagnetic clutch device comprises the solenoid mechanism be fixed in described housing unit and the clutch gear ring be positioned at inside described solenoid mechanism, described clutch gear ring is sleeved on the outer wall of described second output gear or dehydration axle sleeve axially slidably, is undertaken being connected together or departing from by the draw-in groove slid axially be located at described rotary body one end.

Preferably, a kind of washing machine, comprises washing and dehydration execution unit, and driving mechanism for washing machine, and wherein, described driving mechanism for washing machine adopts driving mechanism for washing machine as above.

Compared with prior art, the present invention has the following advantages:

1), transmission device is placed in the inside of rotary body by the present invention, therefore can make full use of the space of rotary body inside, reduce the volume of driving mechanism for washing machine, thus be beneficial to the miniaturization of washing machine;

2), the present invention using provide power without rotating shaft rotary body directly as one of the parts of transmission device, and can rotor be adopted without rotating shaft rotary body, also belt pulley can be adopted, make the structure of driving mechanism for washing machine compacter, take up room less while, also reduce the consumption of a large amount of connector, therefore reduce further the production cost of washing machine;

3), the present invention proposes a kind of spur gear of transmission device, the axially different position of this spur gear have respectively the first spur gear section and the second spur gear section, make spur gear while revolving round the sun with eccentric bushing, there is engagement respectively with the first output gear and the second output gear and carry out rotation again, and then make the first output gear and the second output gear obtain reverse rotational force simultaneously, finally realize wash shaft to reversely rotate with dehydration axle sleeve simultaneously, structure is simple, easy for installation, be very beneficial for scale production, the present invention simultaneously substantially increases transmission efficiency, effectively reduce energy consumption of electrical machinery and rotational noise,

4), driving mechanism for washing machine provided by the invention can according to the rotating speed of the change adjustment wash shaft of wash load, effective reduction washing operating power consumption, simultaneously can alleviate or eliminate by the damage of washing clothes, and the burnout failure that the motor of washing machine causes because of overload can be avoided;

5) eccentric bushing that, the present invention proposes comprises installs body and eccentric body, eccentric bushing external body is set with spur gear with being rotationally connected, and rotate around rotary body eccentric axis, body is installed be fixedly connected with rotary body, and rotate around rotary body axis, simultaneously by installing the lubrication hole arranging in body and take up lubricator, by mounting cover, lubrication hole is sealed, lubricator can effectively play lubrication, antiwear function to eccentric bushing, and then effectively guarantees the service life of eccentric bushing;

6), spur gear mounting structure provided by the invention comprises eccentric bushing and spur gear, and bearing is provided with between spur gear and eccentric bushing, the structure and spur gear and bearing are formed in one, effectively prevent the demand that there is high tolerance cooperation adopting partial installation structure, greatly reduce difficulty of processing, simplify installation procedure simultaneously; The present invention further optimally, the contact surface of spur gear and bearing is provided with spur gear steel ring, and spur gear adopts spur gear steel ring directly to contact with bearing, effectively prevent when driving mechanism for washing machine work runs, bearing causes wearing and tearing to spur gear, guarantees the service life of spur gear;

7), wash shaft mounting structure provided by the invention comprises wash shaft, its one end is fixedly connected with washing execution unit, the other end is fixedly connected with the output gear of transmission device, simultaneously, output gear steel ring is provided with between wash shaft and output gear, output gear steel ring inwall is fixedly connected with by interference mode with wash shaft, outer wall and output gear are formed in one structure, effectively prevent the demand that there is high tolerance cooperation adopting partial installation structure, greatly reduce difficulty of processing, simplify installation procedure simultaneously, further, output gear adopts steel ring directly to contact with wash shaft, effectively prevent when driving mechanism for washing machine work runs, bearing causes wearing and tearing to output gear, guarantee the service life of output gear,

8), dehydration axle sleeve mounting structure provided by the invention comprises dehydration axle sleeve, its one end is fixedly connected with dehydration execution unit, the other end is fixedly connected with the output gear of transmission device, simultaneously, output gear comprises the connecting portion and outer gear portion that are fixedly connected with, and connecting portion is fixedly connected with dehydration axle sleeve, and outer gear portion has external tooth, easy for installation, and compact conformation;

9), the capacitor installation structure of PSC motor provided by the invention comprises electric capacity installing rack and is positioned at the electric capacity of electric capacity installing rack, electric capacity is arranged on electric machine casing by electric capacity installing rack, simultaneously, electric capacity installing rack is provided with at least 1 and installs hook and at least 1 positioning boss, electric machine casing is provided with and installs the mouth hanging linking up with location fit, and with the locating hole of positioning boss location fit, installation procedure is simple, effectively prevent especially to adopt and easily produce loosening risk when motor rotating operation as the securing members such as screw carry out installing, install reliable and stable, also effectively prevent the consumption as securing members such as screws simultaneously, reduce installation cost,

10), electromagnetic clutch device provided by the invention comprises the solenoid mechanism be fixed in housing unit and the clutch gear ring be positioned at inside solenoid mechanism, clutch gear ring is sleeved on the outer wall of transmission device or dehydration axle sleeve axially slidably, and is connected together with rotary body one end or departs from; Wherein, the bottom of clutch gear ring is provided with some latches, latch is made up of the helical teeth portion be connected to each other and straight-tooth portion, rotary body one end is provided with draw-in groove, draw-in groove is made up of interconnective chute portion and straight trough portion, helical teeth portion and straight-tooth portion and chute portion and trough portion is not corresponding is connected together, the cooperation of helical teeth portion of the present invention and chute portion can increase clamping spigot surface greatly, and then effectively guarantees that clutch gear ring and rotary body realize clamping smoothly; There is clutch gear ring and rotary body and to meet accident the risk departed from the cooperation due to helical teeth portion and chute portion, especially when washing machine drives structure is braked after dehydration condition terminates, because motor is braked by counter electromotive force, very easily cause clutch gear ring and rotary body to meet accident to depart from, finally cause brake failure, therefore the present invention adopts the cooperation in straight-tooth portion and straight trough portion can effectively prevent clutch gear ring and rotary body from meeting accident to depart from further;

11), sealing ring is provided with between hermetically-sealed construction rotary body provided by the invention and transmission device; Wherein, the outer wall of transmission device is fixed with ring gasket, sealing ring is socketed on ring gasket; Sealing ring of the present invention can effectively prevent current and impurity from entering transmission device, effectively can prevent again the oil leakage of transmission device inside simultaneously, the present invention further, ring gasket and sealing ring is adopted directly to be socketed, when the outer wall of transmission device adopts plastic material to make, effectively sealing effectiveness can be guaranteed.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the sectional view of driving mechanism for washing machine under the specific embodiment of the invention;

Fig. 2 is the perspective view of Fig. 1;

Fig. 3 is the stereo decomposing structural representation of transmission device in Fig. 1;

Fig. 4 is the stereo decomposing structural representation of motor internal rotor in Fig. 1;

Fig. 5 is the structural representation of eccentric bushing in Fig. 3;

Fig. 6 is the structural representation that Fig. 5 does not comprise the eccentric bushing of mounting cover;

Fig. 7 is spur gear mounting structure schematic diagram in Fig. 1;

Fig. 8 is wash shaft mounting structure schematic diagram in Fig. 1;

Fig. 9 is the axle sleeve mounting structure schematic diagram that dewaters in Fig. 1;

Figure 10 is the structural representation of connecting portion in Fig. 9;

Figure 11 is the capacitor installation structure schematic diagram of PSC motor in Fig. 1;

Figure 12 is the structural representation of electromagnetic clutch device in Fig. 1;

Figure 13 is A place structure enlarged diagram in Figure 12;

Figure 14 is B place structure enlarged diagram in Figure 12;

Figure 15 is the structural representation of clutch gear ring in Figure 12;

Figure 16 is sealed structural representation in Fig. 1.

Detailed description of the invention

The embodiment of the invention discloses a kind of driving mechanism for washing machine, comprising: be used to provide rotational kinetic energy without rotating shaft rotary body; Being arranged on the speed change gear on rotary body, for obtaining rotational kinetic energy from rotary body center position, and exporting the power that its rotating speed is equal to or less than rotary body rotating speed; Connect wash shaft and the dehydration axle sleeve of speed change gear, the power being equal to or less than rotary body rotating speed is supplied to respectively washing and the dehydration execution unit of washing machine under the effect of speed change gear outputting power; Dehydration axle sleeve is sheathed on wash shaft outside and is rotationally connected with it; For installing the housing unit of driving mechanism for washing machine; Wherein, speed change gear comprises transmission device, and transmission device comprises:

Be fixedly connected with rotary body and the eccentric bushing rotated around rotary body axis; Be set in eccentric bushing outside and the spur gear be rotationally connected with it, revolve round the sun around rotary body axis for the rotation along with eccentric bushing, the axially different position of spur gear is respectively equipped with the first spur gear section and the second spur gear section; Be fixedly connected with the first output gear of wash shaft, the first output gear engages with the first spur gear section; Be fixedly connected with the second output gear of dehydration axle sleeve, the second output gear engages with the second spur gear section.

The embodiment of the invention also discloses a kind of washing machine, comprise washing and dehydration execution unit, and driving mechanism for washing machine, wherein, driving mechanism for washing machine adopts driving mechanism for washing machine as above.

In embodiments of the present invention, rotational kinetic energy is provided by rotating around the axis being positioned at its center without rotating shaft rotary body, the speed change gear output speed of rotary body being carried out variable-speed processing is provided with in rotary body inside, because speed change gear is connected with rotary body, therefore in the process that speed change gear rotates about the axis at rotary body, obtain rotational kinetic energy, because the eccentric bushing be connected with rotary body in speed change gear carries out eccentric rotary around rotary body axis, therefore other part in speed change gear is driven also to carry out eccentric rotary around rotary body axis, and be the Power output that rotating speed is equal to or less than rotary body rotating speed by the power-conversion after eccentric rotary.Because speed change gear is connected with the axle sleeve that dewaters with wash shaft simultaneously, and the washing execution unit of one end of wash shaft and washing machine is (concrete as impeller or agitator, hereafter herewith, repeat no more, not shown) be connected, dehydration axle sleeve is sheathed on wash shaft outside and is rotationally connected with it, and the dehydration execution unit of dehydration axle sleeve and washing machine is (as interior bucket, not shown) be connected, thus under the effect of speed change gear outputting power, the described power being equal to or less than rotary body rotating speed is supplied to corresponding execution unit by wash shaft and dehydration axle sleeve respectively, and then make the washing machine being provided with driving mechanism for washing machine of the present invention complete the function of laundry, be specially the function of washing and dehydration.

Transmission device is placed in the inside of rotary body by the embodiment of the present invention, therefore can make full use of the space of rotary body inside, reduces the volume of driving mechanism for washing machine, thus is beneficial to the miniaturization of washing machine, simultaneously using provide power without rotating shaft rotary body directly as one of the parts of transmission device, and can rotor be adopted without rotating shaft rotary body, also belt pulley can be adopted, make the structure of driving mechanism for washing machine compacter, take up room less while, also reduce the consumption of a large amount of connector, therefore reduce further the production cost of washing machine, further importantly, the embodiment of the present invention proposes a kind of spur gear of transmission device, the axially different position of this spur gear have respectively the first spur gear section and the second spur gear section, make spur gear while revolving round the sun with eccentric bushing, there is engagement respectively with the first output gear and the second output gear and carry out rotation again, and then make the first output gear and the second output gear obtain reverse rotational force simultaneously, finally realize wash shaft to reversely rotate with dehydration axle sleeve simultaneously, structure is simple, easy for installation, be very beneficial for scale production, the embodiment of the present invention substantially increases transmission efficiency simultaneously, effectively reduce energy consumption of electrical machinery and rotational noise.

Technical scheme in the present invention is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.

Refer to Fig. 1 and Fig. 2, wherein, Fig. 1 is the sectional view of driving mechanism for washing machine under the specific embodiment of the invention, and Fig. 2 is the perspective view of Fig. 1.In a kind of detailed description of the invention, a kind of driving mechanism for washing machine, comprising: be used to provide rotational kinetic energy without rotating shaft rotary body; Being arranged on the speed change gear on rotary body, for obtaining rotational kinetic energy from rotary body center position, and exporting the power that its rotating speed is equal to or less than rotary body rotating speed; Connect wash shaft 500 and the dehydration axle sleeve 600 of speed change gear, the power being equal to or less than rotary body rotating speed is supplied to respectively washing and the dehydration execution unit of washing machine under the effect of speed change gear outputting power; Dehydration axle sleeve 600 is sheathed on wash shaft 500 outside and is rotationally connected with it; For installing the housing unit of driving mechanism for washing machine.

Wherein, speed change gear comprises transmission device 300, refers to Fig. 3, and Fig. 3 is the stereo decomposing structural representation of transmission device in Fig. 1, and transmission device 300 comprises: be fixedly connected with rotary body and the eccentric bushing 310 rotated around rotary body axis; Be set in eccentric bushing 310 outside and the spur gear 320 be rotationally connected with it, revolve round the sun around rotary body axis for the rotation along with eccentric bushing 310, the axially different position of spur gear 320 is respectively equipped with the first spur gear section and the second spur gear section; The first output gear 330, first output gear 330 being fixedly connected with wash shaft 500 engages with the first spur gear section; Be fixedly connected with the second output gear of dehydration axle sleeve 600, the second output gear engages with the second spur gear section.

Particularly, the first spur gear section of the embodiment of the present invention is the first external tooth or the first internal tooth, and the first output gear has the internal tooth or external tooth that engage with the first external tooth or the first internal tooth; Second spur gear section is the second external tooth or the second internal tooth, and the second output gear has the internal tooth or external tooth that engage with the second external tooth or the second internal tooth.

Preferably, in the present embodiment, as shown in Figure 3, the first spur gear section is that the first external tooth 321, first output gear 330 has internal tooth 331, and the first external tooth 321 is positioned at inside internal tooth 331, and engages with internal tooth 331; Second spur gear section is that the second internal tooth 322, second output gear has external tooth 351, and the second internal tooth 322 is positioned at outside external tooth 351, and engages with external tooth 351.Wherein, particularly, spur gear 320 comprises the first spur gear portion 320a with the first external tooth 321 and second spur gear portion 320b with the second internal tooth 322, first spur gear portion 320a is fixedly formed on the second spur gear portion 320b end face, the junction of the first spur gear portion 320a and the second spur gear portion 320b forms step (scheming unmarked), and the first spur gear portion 320a is set in eccentric bushing 310 outside and is rotationally connected with it; Second output gear comprises the connecting portion 340 and outer gear portion 350 that are fixedly connected with, connecting portion 340 is fixedly connected with dehydration axle sleeve 600, and be positioned at outside the first output gear 330, outer gear portion 350 has external tooth 351, and outer gear portion 350 is rotatably arranged on eccentric bushing 310 by bearing 352.

Wherein, the rotary body of the embodiment of the present invention is rotor or belt pulley, and rotor can be motor internal rotor, also can be motor outer rotor.Preferably, rotor or belt pulley comprise: bogie; Be positioned at the cavity of bogie inside, transmission device is arranged in cavity; Eccentric bushing connects bogie and rotates around bogie axis.For the ease of understanding, in the present embodiment, the situation being only motor internal rotor to rotary body carries out describing.But be interpreted as, those skilled in the art completely can according to the technical scheme described by the embodiment of the present invention, by the motor internal rotor described in motor outer rotor or belt pulley corresponding substitute embodiment, and, when corresponding substitute, corresponding change is carried out to structure of the present invention and also not there is novelty.

Wherein, the motor of the embodiment of the present invention can use various motor, such as synchronous motor, asynchronous machine, servomotor, PSC motor, BLDC motor etc.Preferably, in the present embodiment, refer to shown in Fig. 1 and Fig. 2, motor is PSC motor 100, comprising: motor stator 110, the motor internal rotor 120 being positioned at motor stator 110 inside and electric capacity; Electric capacity is electrically connected with motor stator 110, and is arranged on housing unit.Particularly, in the present embodiment, it is outside that housing unit is positioned at PSC motor 100, comprise: the tubular shell 210 of both ends open, the electric motor end cap 220 be connected with housing 210 bottom, be positioned at housing 210 top and the mounting disc 240 be connected by motor bolt 230 with electric motor end cap 220, and housing 210, electric motor end cap 220 and mounting disc 240 surround one for settling the inner space of other parts such as motor stator 110 and motor internal rotor 120.Particularly, for reducing manufacturing cost, mounting disc 240 and electric motor end cap 220 adopt cast aluminium forming part, and housing 210 adopts steel part; Meanwhile, for ensureing installation strength, mounting disc 240 and electric motor end cap 220 are respectively equipped with some reinforcement sheets, and in order to be beneficial to the heat radiation of motor 100, housing 210 is provided with some louvres 213, and electric motor end cap 220 is provided with difform thermal vias.

Refer to Fig. 4, Fig. 4 is the stereo decomposing structural representation of motor internal rotor in Fig. 1.Particularly, in the present embodiment, motor internal rotor 120 comprises bogie and illustrates with the cavity 121(Fig. 1 being located at bogie inside), wherein, bogie comprises the rotor 122 of tubular and is positioned at the rotor inserts 123 of rotor 122, and its rotor inserts 123 comprises: the cylinder 124 of both ends open; Be positioned at the base 125 of cylinder 124 bottom, and a base plate through holes 126 is offered at the center of base 125, the top of cylinder 124 is provided with the draw-in groove 127 upwards extended.Cylinder 124 in rotor inserts 123 and base 125 are configured for the cavity 121 installing transmission device 300 jointly, wash shaft 500 is through the center of base plate through holes 126, therefore there is the rotation identical with wash shaft 500, i.e. the rotation of bogie and the rotation axis coincident of wash shaft 500 when bogie rotates.

Refer to Fig. 5, wherein Fig. 5 is the structural representation of eccentric bushing in Fig. 3.Eccentric bushing 310 is fixedly connected with bogie, and eccentric bushing 310 rotates around the rotation of bogie.Eccentric bushing 310 specifically comprises: install body 311, installs body 311 and is fixedly connected with bogie, and rotate around bogie axis; The eccentric body 312 be fixedly connected with installation body 311, it is around bogie eccentric rotary, spur gear 320 is set in eccentric body 312 outside and is rotationally connected with it, install in body 311 and eccentric body 312 and be provided with through hole 319, this through hole 319 and base plate through holes 126 coaxial line in rotor inserts 123, wash shaft 500 is positioned at this through hole 319 coaxially, and it is through in through hole 319 stretches out.

Wherein, installing body 311 and can be fixedly connected with for split type with eccentric body 312, also can be that integral type is fixedly connected with.For the ease of processing or installation, preferably, during processing eccentric bushing 310, body 311 is installed and adopts integrated mode with eccentric body 312, natch, in other embodiments, also the modes such as welding can be adopted to connect be integrated, and, adding man-hour, should make to have certain eccentric throw between the center line of the center line of installation body 311 and eccentric body 312, this eccentric throw can be taken as the radius of spur gear 320 and the difference of the first output gear 330 radius.

Incorporated by reference to see Fig. 3, shown in Fig. 4 and Fig. 5, in embodiments of the present invention, eccentric bushing 310 be fixedly connected with for ease of transmitting being rigidly connected of rotation torque between bogie, when concrete processing is installed, eccentric bushing 310 and bogie can be formed in one structure, also split type being connected can be adopted, as passed through screw, the modes such as welding connect, preferred mode is formed in one structure, be specially: the rotor 122 of tubular adopts metal material, eccentric bushing 310 adopts metal material, using the rotor 122 of tubular and eccentric bushing 310 as injection moulding or die cast insert, put into injection mold or die casting, directly the rotor 122 of tubular and eccentric bushing 310 is made to be fixedly installed on rotor inserts 123 through injection moulding or die cast, more preferably, in the present embodiment, adopt integrated injection molding, specifically preferably, rotor inserts 123 adopts BMC, the polyesters thermosetting plasticses such as SMC are made, more preferably, body 311 periphery is installed and is provided with some chimeric double wedges or gomphosis groove (Fig. 5 shows to be two round gomphosis grooves 313 and 6 gomphosis grooves 314), base plate through holes 126 inwall of rotor inserts 123 is provided with gomphosis groove that chimeric double wedge some with this or gomphosis groove coordinate or chimeric double wedge, and (Fig. 4 shows to be that a round is fitted together to double wedge 126-1 and 6 chimeric double wedge 126-2, it is not shown that another round is fitted together to double wedge), installing body 312 is fixedly entrenched in this base plate through holes 126, thus increase eccentric bushing 310 and adhesion when bogie injection moulding or die casting, simultaneously, rotor inserts 123 periphery is provided with the embeded slot 128 chimeric with the rotor 122 of tubular, for increasing adhesion when each parts injection moulding in bogie or die casting, be easy to rigidly fixing between eccentric bushing 310 and each parts between bogie and in bogie and be connected needs, in addition, when processing integrated eccentric bushing 310, in eccentric body 312, forming mould locating hole 312-1(Fig. 6 illustrate).

Please further combined with being the structural representation that Fig. 5 does not comprise the eccentric bushing of mounting cover see Fig. 6, Fig. 6, further specifically preferably, in the present embodiment, eccentric bushing 310 is metallic sintered products, wherein, be provided with some lubrication hole 315(Fig. 5 in installation body 311 and show to be 6), containing lubricator in lubrication hole 315, by mounting cover 316, lubrication hole 315 is sealed, particularly, lubricator is that lubricating oil or oil are cotton, preferably, in the present embodiment, lubricator is general horse Brunswick lubricating oil.Eccentric body 312 periphery is provided with the first eccentric step 317 and the second eccentric step 318, is respectively used to the mounting limit to spur gear 320 and outer gear portion 350; The capping of seal cover 316 is provided with the protruding 316-1 of fitted seal corresponding to lubrication hole 315, effectively prevents lubricator from revealing.

When bogie rotates, eccentric bushing 310 is installed body 311 by it and is fixedly entrenched in also coaxial, synchronized rotation thereupon in base plate through holes 126, thus drive is sleeved on eccentric body 312 outside and also carries out corresponding revolution to the spur gear 320 that it is rotationally connected thereupon.

Shown in Figure 7, and shown in composition graphs 1 and Fig. 3, a kind of spur gear mounting structure of driving mechanism for washing machine, comprising: be fixedly connected with bogie and the eccentric bushing 310 rotated around bogie axis; Spur gear 320, is set in eccentric bushing 310 outside and is rotationally connected with it; First output gear 330, is fixedly connected with wash shaft 500; Second output gear, is fixedly connected with dehydration axle sleeve 600.Wherein, the axially different position of spur gear 320 is respectively equipped with the first spur gear section and the second spur gear section.As shown in Figure 3 and Figure 7, the first spur gear section is that the first external tooth 321, first output gear 330 has internal tooth 331, and the first external tooth 321 is positioned at inside internal tooth 331, and engages with internal tooth 331; Second spur gear section is that the second internal tooth 322, second output gear has external tooth 351, and the second internal tooth 322 is positioned at outside external tooth 351, and engages with external tooth 351.

Wherein, particularly, spur gear 320 comprises the first spur gear portion 320a with the first external tooth 321 and second spur gear portion 320b with the second internal tooth 322, first spur gear portion 320a is fixedly formed on the second spur gear portion 320b end face, the junction of the first spur gear portion 320a and the second spur gear portion 320b forms step, and the first spur gear portion 320a is set in eccentric bushing 310 outside and is rotationally connected with it; Second output gear comprises the connecting portion 340 and outer gear portion 350 that are fixedly connected with, connecting portion 340 is fixedly connected with dehydration axle sleeve 600, and be positioned at outside the first output gear 330, outer gear portion 350 has external tooth 351 with relative external tooth 351 in step-like end face 354, the inwall of outer gear portion 350 is provided with bearing mounting groove 355 simultaneously, bearing 352 is positioned at this bearing mounting groove 355, and outer gear portion 350 is rotatably arranged on eccentric bushing 310 by bearing 352.

Wherein, preferably, in the present embodiment, spur gear 320 adopts plastic material integrated injection molding, natch, also metal material can be adopted to make, particularly, be connected for realizing relatively rotating between eccentric bushing 310 with spur gear 320, bearing 360 is provided with between spur gear 320 and eccentric bushing 310, spur gear 320 and bearing 360 are formed in one structure, preferably, spur gear 320 is provided with spur gear steel ring 323 with the contact surface of bearing 360, when concrete processing spur gear 320, spur gear steel ring 323 and bearing 360 are as injection moulding inserts, put into injection mold, final processing injection moulding obtains spur gear 320 and the bearing 360 of integrated formed structure.Particularly, bearing 360 is deep groove ball bearing, natch, also can adopt other types bearing, for guaranteeing the intensity of spur gear 320, the junction step medial surface between the first spur gear portion 320a and the second spur gear portion 320b is provided with some reinforcement sheet 370(Fig. 3 and illustrates).

Shown in Figure 8, and combine see Fig. 1 and Fig. 3, a kind of wash shaft mounting structure of driving mechanism for washing machine, comprising: wash shaft 500, and its one end is fixedly connected with washing execution unit, and the other end is fixedly connected with the first output gear 330 of transmission device; Wherein, preferably, in the present embodiment, the first output gear 330 adopts plastic material integrated injection molding, natch, in other embodiments, metal material also can be adopted to make; Output gear steel ring 332 is provided with between wash shaft 500 and the first output gear 330, output gear steel ring 332 inwall is fixedly connected with by interference mode with wash shaft 500, its outer wall and the first output gear 330 are formed in one structure, when concrete processing the first output gear 330, output gear steel ring 332 is as injection moulding inserts, put into injection mold, final processing injection moulding obtains the first output gear 330 and the output gear steel ring 332 of integrated formed structure.Specifically preferably, in order to increase the inlay resultant force between output gear steel ring 332 and the first output gear 330, output gear steel ring 332 outer wall is provided with fitting portion 333, fitting portion 333 one embeds the upper end of the first output gear 330, fitting portion 333 is step surface, step surface comprises further some embedded hole 334(Fig. 8 and shows to be 12), for guaranteeing the intensity of the first output gear 330, some reinforcement sheets (Fig. 3 illustrates, but unmarked) are provided with around internal tooth 331.

Shown in Figure 9, and combine see Fig. 1 and Fig. 3, a kind of dehydration axle sleeve mounting structure of driving mechanism for washing machine, comprising: dehydration axle sleeve 600, and its one end is fixedly connected with dehydration execution unit, and the other end is fixedly connected with the second output gear of transmission device; Second output gear comprises the connecting portion 340 and outer gear portion 350 that are fixedly connected with, and connecting portion 340 is fixedly connected with dehydration axle sleeve 600, and outer gear portion 350 has external tooth 351;

Wherein, preferably, in the present embodiment, connecting portion 340 and outer gear portion 350 all adopt plastic material integrated injection molding, natch, in other embodiments, also can metal material be adopted respectively to make, also can adopt split fixing mechanism respectively; This connecting portion 340 comprises connecting portion 341 and is arranged on its lower end and the lower connecting portion 342 be fixedly connected with it.Please further combined with shown in Figure 10, upper connecting portion 341 medial surface is provided with the some double wedges 345 distributed vertically, dehydration axle sleeve 600 lateral surface is provided with the groove 610 that be fixedly connected with cooperation corresponding to this double wedge 345, thus is fixedly mounted with the axle sleeve 600 that dewaters by connecting portion 340 and be connected; In other embodiments, the upper connecting portion 341 made by metal material can certainly be adopted to realize being rigidly connected with dehydration axle sleeve 600 by laser weld or other modes; Upper connecting portion 341 lateral surface (i.e. its outer wall) is also provided with the external splines 343 distributed vertically.

And lower connecting portion 342 is tubular structure, its top and upper connecting portion 341 are connected.Outer gear portion 350 end face is provided with some draw-in groove 353(Fig. 9 and shows to be 6), lower connecting portion 342 bottom is provided with the latch 340-1 fixedly engaged with draw-in groove 353, thus realizes connecting portion 340 and outer gear portion 350 to be fixed connection; And the junction between lower connecting portion 342 and upper connecting portion 341 is also provided with multiple reinforcement 344, and is also provided with multiple for settling the boss with holes 346 of Compress Spring 430 between adjacent reinforcement 344.In order to improve the intensity of outer gear portion 350, outer gear portion 350 end face is also provided with some reinforcement sheets (Fig. 3 illustrates, but unmarked).

When eccentric bushing 310 rotates, be sleeved on eccentric body 312 outside and under it drives, carry out the revolution of identical direction of rotation with it with the spur gear 320 that it is rotationally connected, and because the centreline spacing of the installation body 311 in eccentric bushing 310 and eccentric body 312 has certain eccentric throw, and rotation and the bogie dead in line of body 311 are installed, therefore, when spur gear 320 revolves round the sun, be actually and carrying out eccentric rotation around bogie axis.

When spur gear 320 is carrying out in process of revolution (namely carrying out eccentric rotary around bogie axis), because the internal tooth 331 of its first external tooth 321 with the first output gear 330 engages, its second internal tooth 322 engages with the external tooth 351 of outer gear portion 350, thus under the interaction force of this gear teeth meshing, spur gear 320 is made to produce rotation, and direction of rotation is now contrary with the direction of its revolution, therefore its rotary power can be passed to simultaneously the first output gear 330 and the second output gear.Further particularly, owing to all there is tooth difference relation between the first external tooth 321 and internal tooth 331 and between the second internal tooth 322 and external tooth 351, therefore spur gear 320 is made can to produce speed difference in rotation with during revolution, namely the speed of time rotational is lower than speed during revolution, thus the rotating speed making it export is lower than the rotating speed of bogie.Accordingly, owing to all there is interaction force between the first output gear 330, second output gear and spur gear 320, therefore the first output gear 330 and the second output gear is made all can to rotate at spur gear 320 time rotational, and the direction of rotation of the first output gear 330 is contrary with the direction of rotation of the second output gear, the rotary speed of the first output gear 330 and the rotary speed of the second output gear are all lower than the rotating speed of bogie simultaneously.

To sum up, spur gear 320 is at the eccentric bushing 310 rotated with under passing through the first output gear 330 of gear teeth meshing and the comprehensive function power of the second output gear with it, carry out revolving round the sun and rotation, and the direction of its rotation is contrary with revolution direction, the rotating speed of time rotational is lower than the rotating speed of bogie simultaneously; And the first output gear 330 and the second output gear are also under the effect of respective action power, it is contrary and lower than the rotary motion of bogie rotating speed to carry out relative direction of rotation respectively.Again because the first output gear 330 is fixedly connected with wash shaft 500, second output gear is fixedly connected with dehydration axle sleeve 600, therefore, synchronously, to carry out relative direction of rotation respectively contrary and lower than the rotary motion of bogie rotating speed for wash shaft 500 and dehydration axle sleeve 600.

Shown in Figure 11, a kind of capacitor installation structure of PSC motor, the electric capacity (scheming not shown) comprising electric capacity installing rack 140 and be encapsulated in electric capacity installing rack 140, electric capacity is arranged on housing 210 by electric capacity installing rack 140; Wherein, electric capacity installing rack 140 is provided with 4 and installs hook 141 and 1 positioning boss 142; Housing 210 is provided with and 4 mouth hangings 211 installing hook 141 location fit, and with 1 locating hole 212 of positioning boss 142 location fit.

Specifically preferably, electric capacity installing rack 140 comprises installed surface 143 and has the support body 144 of inner space, installed surface 143 is fixedly connected with support body 144, and electric capacity is arranged in the inner space of support body 144, and installed surface 143 is provided with 4 and installs hook 141 and 1 positioning boss 142; Installed surface 143 is also provided with variant part 145, and variant part 145 and installed surface 143 are formed in one structure.Wherein, form the first opening 146 and the second opening 147 between variant part 145 both sides and installed surface 143, positioning boss 142 is arranged on variant part 145, and variant part 145 one end is fixedly installed on installed surface 143, and the other end rotates deformation.Preferably, in order to ensure the efficiently radiates heat of electric capacity, be provided with radiating part 149 between installed surface 143 and support body 144, particularly, installed surface 143 is connected by some fillets 148 with support body 144, and the space between fillet 148 forms radiating part 149.In addition, in this real mode, further preferably, be provided with dismounting groove (scheming not shown) in the end of variant part 145, be convenient to follow-up dismounting.Particularly, in the present embodiment, variant part 145 adopts elastoplast to make.

Preferably, can occur when considering that electric capacity surprisingly burns on fire splash and cause possible security incident, electric motor end cap 220 is fixed with extension 221(Fig. 2 to illustrate), extension 221 is positioned at the below of electric capacity installing rack 140, can be used for taking up the splash produced when electric capacity surprisingly burns on fire, effectively avoid security incident to occur.

When initially installed, hook 141 is installed and is arranged on mouth hanging 211 place, use external force that variant part 145 is out of shape simultaneously, and make hook 141 slide downward is installed, when the positioning boss 142 on variant part 145 slide to locating hole 212 and with locating hole 212 location fit time, variant part 145 recovers deformation, hook 141 is now installed and completes location fit with mouth hanging 211, positioning boss 142 and locating hole 212 location fit, effectively can prevent from that hook 141 is installed to come off, install very convenient, effectively prevent especially to adopt and easily produce loosening risk when motor rotating operation as the securing members such as screw carry out installing, install reliable and stable, also effectively prevent the consumption as securing members such as screws simultaneously, reduce installation cost.

Because washing machine operationally has different operating modes, namely washing operating mode and dehydration condition is comprised, thus need need according to the difference of each operating mode and regulate the output speed of speed change gear, as when washing operating mode, the output speed of speed change gear is needed to be low speed, and when dehydration condition, need the output speed of speed change gear for high speed.Therefore in embodiments of the present invention, speed change gear also comprises: the electromagnetic clutch device 400 being arranged at housing unit inside, electromagnetic clutch device comprises the solenoid mechanism be fixed in housing unit and the clutch gear ring be positioned at inside solenoid mechanism, clutch gear ring is sleeved on the outer wall of connecting portion 341 axially slidably, is undertaken being connected together or departing from by the draw-in groove 127 on cylinder 124 top slid axially and be located in rotor inserts 123.

As shown in Figure 1, electromagnetic clutch device 400 comprises the solenoid mechanism 410 be fixed in housing unit and the clutch gear ring 420 be positioned at inside solenoid mechanism 410.Particularly, please with further reference to shown in Figure 12, Figure 13, Figure 14 and Figure 15, solenoid mechanism 410 comprises: the coil retainer 411(being packed in mounting disc 240 lower surface as shown in figure 12, is specifically composed of a fixed connection by screw by upper cover plate and lower cover); Be installed on the coil holder 412 in coil retainer 411; Be set around the solenoid 413 on coil holder 412.For the ease of processing or installation, clutch gear ring 420 comprises: upper end connecting portion 421; The lower end connecting portion 422 be connected with upper end connecting portion 421; Wherein, upper end connecting portion 421 inwall is provided with the internal spline 423 be slidably connected with the external splines 343 on upper connecting portion 341 outer wall, its outer wall is installed with magnetic conduction iron hoop 424, magnetic conduction iron hoop 424 and coil retainer 411 all adopt permeability magnetic material to make, and form closed magnetic circuit to produce magneticaction with solenoid 413 three; When processing clutch gear ring 420, upper end connecting portion 421 and lower end connecting portion 422 are formed in one or split fixed connection structure, preferably, upper end connecting portion 421 and lower end connecting portion 422 are formed in one structure, more preferably, be integrated injection mo(u)lding structure, wherein, magnetic conduction iron hoop 424 is as injection moulding inserts, be positioned over by magnetic conduction iron hoop 424 in injection moulding grinding tool, final processing injection moulding obtains clutch gear ring 420, further preferably, some material reducing grooves 426 are provided with, to reduce manufacturing cost at the surrounding position of lower end connecting portion 422.

Wherein, the bottom of lower end connecting portion 422 is provided with the some latches 425 to downward-extension, latch 425 is made up of the helical teeth portion 425a be connected to each other and straight-tooth portion 425b, draw-in groove 127 is made up of interconnective chute portion 127a and straight trough portion 127b, helical teeth portion 425a and straight-tooth portion 425b and chute portion 127a and straight trough portion 127b is corresponding is respectively connected together.Clutch gear ring 420 is sleeved on the outer wall of connecting portion 341 axially slidably, and slide axially along the external splines 343 on its outer wall, the draw-in groove 127 that the latch 425 of lower end connecting portion 422 bottom realized and be located in bogie cylinder 124 top carries out being connected together or departing from, thus makes speed change gear carry out high speed or low-speed motion.

Being connected together smoothly or departing from order to ensure the cylinder 124 in clutch gear ring 420 and rotor inserts 123, preferably, the embodiment of the present invention is provided with Compress Spring 430 between clutch gear ring 420 and the connecting portion 340 of the second output gear, and Compress Spring 430 is sheathed to be placed on the boss with holes 346 of connecting portion 340.

The electromagnetic clutch device 400 of the embodiment of the present invention enters washing operating mode when solenoid 413 is energized, dehydration condition is entered during power-off, also just dehydration condition can be entered when solenoid 413 is energized, washing operating mode is entered during power-off, owing to washing the length consuming time of operating mode, the time of dehydration condition is short, in order to the amount of saving energy, simultaneously under the prerequisite completing identical workload, the working time of effective minimizing electromagnetic clutch device 400, and then effectively improve the service life of electromagnetic clutch device 400, preferably, in the present embodiment, electromagnetic clutch device 400 enters dehydration condition when solenoid 413 is energized, washing operating mode is entered during power-off.The electromagnetic clutch device 400 of the embodiment of the present invention produces magnetic field repulses power or magnetic attraction when solenoid 413 is energized, preferably, for the ease of the installation of electromagnetic clutch device 400, the electromagnetic clutch device 400 of the embodiment of the present invention produces magnetic field repulses power when solenoid 413 is energized, and specific works process is:

When solenoid 413 is energized, under the effect of the magnetic field repulses power of solenoid mechanism 410, magnetic conduction iron hoop 424 is moved downward so that away from solenoid mechanism 410, and magnetic conduction iron hoop 424 and the upper end connecting portion 421 of clutch gear ring are connected, thus under the drive of magnetic conduction iron hoop 424, make whole clutch gear ring 420 along the outer wall slide downward of upper connecting portion 341 until the latch 425 of lower end connecting portion 422 bottom of clutch gear ring 420 is connected together with the draw-in groove 127 on bogie, therefore, second output gear obtains the rotating speed identical with bogie, and make transmission device 300 be in locking state, on the contrary, when solenoid 413 power-off, clutch gear ring 420 is under the effect of the restoring force of the sheathed Compress Spring 430 be placed on connecting portion 340, along the outer wall upward sliding of upper connecting portion 341 until the latch 425 of lower end connecting portion 422 bottom of clutch gear ring 420 departs from the draw-in groove 127 on bogie, and then transmission device 300 is made to enter duty.

Carry out specifically describing to the course of work of washing machine under dehydration and washing operating mode situation with embodiment of the present invention driving mechanism for washing machine below.

Dehydration condition: when dewatering to washings, solenoid 413 now in electromagnetic clutch device 400 is energized, coil retainer 411, solenoid 413 and magnetic conduction iron hoop 424 triple interaction of clutch gear ring 420 can form a closed magnetic circuit, produce electromagnetic repulsive force, now clutch gear ring 420 under the effect of this electromagnetic repulsive force along on the outer wall of connecting portion 341 slide axially (direction downward in as Fig. 1) downwards, and Compress Spring 430 compresses by clutch gear ring 420 in the process that slides axially, and the latch 425 of lower end connecting portion 422 bottom of clutch gear ring is connected together with the draw-in groove 127 on bogie, thus clutch gear ring 420 and bogie are connected as one, and then dehydration axle sleeve 600 and bogie are connected as one, and make dehydration axle sleeve obtain the rotating speed identical with bogie, now whole transmission device 300 is in locking state, therefore whole transmission device 300 runs up together along with bogie, and then drive the wash shaft that is connected with transmission device 300 also companion bogie carry out High Rotation Speed, realize dewatering to washings.

Washing operating mode: when washing washings, solenoid 413 power-off now in electromagnetic clutch device 400, coil retainer 411, the closed magnetic circuit formed between solenoid 413 and clutch gear ring 420 disappears, clutch gear ring 420 is no longer subject to the effect of electromagnetic repulsive force, therefore under the compression reaction power effect of Compress Spring 430, clutch gear ring 420 axially upwardly slides along the outer wall of upper connecting portion 341, thus the latch 425 of the lower end connecting portion 422 of clutch gear ring 420 is departed from the draw-in groove 127 on bogie, and then make the transmission device in speed change gear enter duty:

When bogie is around bogie axis (being wash shaft axis) High Rotation Speed, drive and carry out High Rotation Speed with the speed that bogie is identical with it around wash shaft axis with the eccentric bushing that it is connected, and the High Rotation Speed of eccentric bushing drives spur gear to carry out eccentric high speed revolution around wash shaft axis, when spur gear carries out in eccentric high speed process of revolution around wash shaft axis, because the internal tooth 331 of its first external tooth 321 with the first output gear 330 engages, its second internal tooth 322 engages with the external tooth 351 of outer gear portion 350, thus under the interaction force of this gear teeth meshing, spur gear 320 is made to produce rotation, and direction of rotation is now contrary with the direction of its revolution, therefore its rotary power can be passed to simultaneously the first output gear 330 and the second output gear.Further particularly, owing to all there is tooth difference relation between the first external tooth 321 and internal tooth 331 and between the second internal tooth 322 and external tooth 351, therefore spur gear 320 is made can to produce speed difference in rotation with during revolution, namely the speed of time rotational is lower than speed during revolution, thus the rotating speed making it export is lower than the rotating speed of bogie.Accordingly, owing to all there is interaction force between the first output gear 330, second output gear and spur gear 320, therefore the first output gear 330 and the second output gear is made all can to rotate at spur gear 320 time rotational, and the direction of rotation of the first output gear 330 is contrary with the direction of rotation of the second output gear, the rotary speed of the first output gear 330 and the rotary speed of the second output gear are all lower than the rotating speed of bogie simultaneously.Again because the first output gear 330 is fixedly connected with wash shaft 500, second output gear is fixedly connected with dehydration axle sleeve 600, therefore, synchronously, it is contrary and lower than the rotary motion of bogie rotating speed, realize washing washings that wash shaft 500 and dehydration axle sleeve 600 carry out relative direction of rotation respectively.

Due to during washing operating mode, dehydration axle sleeve 600 is in non-stationary state, and therefore during wash shaft 500 rotates, wash shaft 500 is delivered to the first output gear 330 wash load to its reaction force, and first output gear 330 wash load reaction force by being applied to the second output gear with the engaging structure of spur gear 320, change the interaction of the first output gear 330 and the second output gear, the rotary speed of the first output gear 330 and the second output gear is changed along with the change of wash load, that is, the rotary speed of wash shaft 500 and dehydration axle sleeve 600 changes along with the change of wash load, thus solve in prior art and dehydration axle sleeve need be fixed and need be consumed a difficult problem for mass energy when washing operating mode, therefore washing operating power consumption is effectively reduced, simultaneously can alleviate or eliminate by the damage of washing clothes, and the burnout failure that the motor of washing machine causes because of overload can be avoided.

Shown in Figure 16, and combine see Fig. 1 and Fig. 3, a kind of hermetically-sealed construction of driving mechanism for washing machine, refer to and be provided with sealing ring 700 between cylinder 124 inwall of rotor inserts 123 and the outer wall of the lower connecting portion 342 of connecting portion 340, particularly, sealing ring 700 adopts elastic rubber material to make, wherein, the outer wall of the lower connecting portion 342 of connecting portion 340 is fixed with ring gasket 710, sealing ring 700 is socketed on ring gasket 710, particularly, ring gasket 710 and lower connecting portion 342 can be formed in one structure or Split connection structure, preferably, in the present embodiment, ring gasket 710 and lower connecting portion 342 are formed in one structure, particularly, the connecting portion 340 including connecting portion 341 and lower connecting portion 342 adopts integrated injection molding, specifically adding man-hour, ring gasket 710 is as injection moulding inserts, the outer wall of lower connecting portion 342 is provided with embeded slot 720, ring gasket is positioned in injection moulding grinding tool, final processing injection moulding obtains ring gasket 710 and the connecting portion 340 of integrated formed structure, wherein, ring gasket 710 is integrally entrenched in embeded slot 720, fixing inlay resultant force between effective enhancing connecting portion 340 and ring gasket 710, instantly when connecting portion 342 adopts plastic material to make, the embodiment of the present invention adopts the sealing ring 700 made of elastic rubber material and steel material to make ring gasket 710 and is directly socketed and contacts, effectively can guarantee sealing effectiveness.

Further preferably, in embodiments of the present invention, in order to detect the rotary speed of wash shaft 500, washing machine drives structure of the present invention also comprises velocity measurement mechanisms, incorporated by reference to see shown in Fig. 1 and Figure 12, the magnetic ring component that velocity measurement mechanisms specifically comprises Hall subassembly 810 and is closely coupled with Hall subassembly 810, wherein, Hall subassembly 810 is fixedly mounted on the upper end of coil retainer 411, magnetic ring component comprises magnet ring body 821, it is fixedly installed in wash shaft 500 by injection moulding, the moulding obtained shown in Figure 1 822.

In driving mechanism for washing machine of the present invention, in order to prevent axial float or the displacement of wash shaft, multiple jump ring and other identical functions parts can be installed additional in the applicable position of wash shaft or dehydration axle sleeve; For the ease of installing and load-bearing, pad and other identical functions parts can be installed additional in the applicable position of wash shaft; In order to meet normal delivery and the installation of drive connection of the present invention, multiple oiliness bearing and multiple ball bearing can be set at different parts, as arranged multiple oiliness bearing between wash shaft and dehydration axle sleeve, between ring gear and dehydration axle sleeve, between mounting disc and dehydration axle sleeve and between electric motor end cap and wash shaft, multiple ball bearing is set, more specifically, described ball bearing can be deep groove ball bearing.Preferably, the ball bearing between electric motor end cap and wash shaft and the lining that can arrange between wash shaft for playing oiliness bearing function.In order to prevent washings from entering in deceleration input block and deceleration output block and motor along wash shaft, dehydration axle sleeve and mounting disc, little water seal being set between wash shaft and dehydration axle sleeve, large water seal is set between dehydration axle sleeve and mounting disc.Preferably, in order to realize damping noise abatement operationally, the beam that plastic material or elastomeric material are prepared from is installed additional between each build-up member, and under the condition meeting installation strength or correlation function, by the part-structure of housing unit as mounting disc, electric motor end cap etc., casting aluminium material is adopted to be prepared from, to reduce component processing manufacturing cost, and in order to improve the intensity of each parts, parts arrange the reinforcement sheet of difformity and quantity.

Because each parts such as above-described jump ring, pad, oiliness bearing, ball bearing, lining, large water seal, little water seal, damping noise abatement part and reinforcement sheet are the customary means of those skilled in the art, therefore any change that above part is structurally made all is interpreted as not possessing novelty relative to this patent.

The embodiment of the present invention additionally provides a kind of washing machine, comprise washing and dehydration execution unit, and driving mechanism for washing machine, wherein, driving mechanism for washing machine adopts driving mechanism for washing machine as above, its structure is simple, compact, volume is little, easy for installation, and transmission efficiency is high simultaneously, energy consumption is low and noise is little.

To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.

In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.

Claims (10)

1. a driving mechanism for washing machine, comprising: be used to provide rotational kinetic energy without rotating shaft rotary body; Being arranged on the speed change gear on described rotary body, for obtaining rotational kinetic energy from rotary body center position, and exporting the power that its rotating speed is equal to or less than described rotary body rotating speed; Connect wash shaft and the dehydration axle sleeve of described speed change gear, the described power being equal to or less than described rotary body rotating speed is supplied to respectively washing and the dehydration execution unit of washing machine under the effect of described speed change gear outputting power; Dehydration axle sleeve is sheathed on wash shaft outside and is rotationally connected with it; For installing the housing unit of driving mechanism for washing machine; It is characterized in that, described speed change gear comprises transmission device, and described transmission device comprises:

Be fixedly connected with described rotary body and the eccentric bushing rotated around rotary body axis;

Be set in described eccentric bushing outside and the spur gear be rotationally connected with it, revolve round the sun around described rotary body axis for the rotation along with eccentric bushing, the axially different position of described spur gear is respectively equipped with the first spur gear section and the second spur gear section;

Be fixedly connected with the first output gear of described wash shaft, described first output gear engages with described first spur gear section;

Be fixedly connected with the second output gear of described dehydration axle sleeve, described second output gear engages with described second spur gear section.

2. driving mechanism for washing machine as claimed in claim 1, it is characterized in that, described first spur gear section is the first external tooth or the first internal tooth, and described first output gear has the internal tooth or external tooth that engage with described first external tooth or the first internal tooth;

Described second spur gear section is the second external tooth or the second internal tooth, and described second output gear has the internal tooth or external tooth that engage with described second external tooth or the second internal tooth.

3. driving mechanism for washing machine as claimed in claim 2, it is characterized in that, described first spur gear section is the first external tooth, and described first output gear has internal tooth, and described first external tooth is positioned at inside described internal tooth, and engages with internal tooth;

Described second spur gear section is the second internal tooth, and described second output gear has external tooth, and described second internal tooth is positioned at outside described external tooth, and engages with external tooth.

4. driving mechanism for washing machine as claimed in claim 3, it is characterized in that, described spur gear comprises the first spur gear portion with the first spur gear section and the second spur gear portion with the second spur gear section, described first spur gear portion is fixedly formed on described second spur gear end surface, and described first spur gear portion is set in described eccentric bushing outside and is rotationally connected with it.

5. driving mechanism for washing machine as claimed in claim 3, it is characterized in that, described second output gear comprises the connecting portion and outer gear portion that are fixedly connected with, and described connecting portion is fixedly connected with dehydration axle sleeve, and be positioned at outside described first output gear, described outer gear portion has described external tooth.

6. driving mechanism for washing machine as claimed in claim 1, it is characterized in that, described rotary body is rotor or belt pulley.

7. driving mechanism for washing machine as claimed in claim 6, it is characterized in that, described rotor or belt pulley comprise:

Bogie;

Be positioned at the cavity of described bogie inside, described transmission device is arranged in cavity;

Described eccentric bushing connects described bogie and rotates around bogie axis.

8. driving mechanism for washing machine as claimed in claim 6, it is characterized in that, described motor is PSC motor, comprising:

Motor stator, the motor internal rotor being positioned at motor stator inside and electric capacity;

Described electric capacity is electrically connected with described motor stator, and is arranged on housing unit.

9. driving mechanism for washing machine as claimed in claim 1, it is characterized in that, described speed change gear also comprises: the electromagnetic clutch device being arranged at described housing unit inside, described electromagnetic clutch device comprises the solenoid mechanism be fixed in described housing unit and the clutch gear ring be positioned at inside described solenoid mechanism, described clutch gear ring is sleeved on the outer wall of described second output gear or dehydration axle sleeve axially slidably, is undertaken being connected together or departing from by the draw-in groove slid axially be located at described rotary body one end.

10. a washing machine, comprises washing and dehydration execution unit, and driving mechanism for washing machine, and it is characterized in that, described driving mechanism for washing machine adopts the driving mechanism for washing machine as described in claim 1-9 any one.