CN202898810U - Washing machine with 6-pole 36-groove motor - Google Patents
Washing machine with 6-pole 36-groove motor Download PDFInfo
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- CN202898810U CN202898810U CN 201220574191 CN201220574191U CN202898810U CN 202898810 U CN202898810 U CN 202898810U CN 201220574191 CN201220574191 CN 201220574191 CN 201220574191 U CN201220574191 U CN 201220574191U CN 202898810 U CN202898810 U CN 202898810U
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Abstract
The utility model relates to a washing machine which comprises a clothes container, a rotor, and a stator. The rotor which is a 6-pole rotor connected to the clothes container to rotate the clothes container around a horizontal shaft. The stator which is a 36-groove stator provided with an inner cavity. The inner cavity contains the 6-pole rotor in magnetic coupling relation with the 36-groove stator. By the aid of the 6-pole 36-groove motor, center frequency of pole groove noise is far away from 1000Hz, ear sensitivity to the noise is lowered, and the washing machine is low in efficiency and low in cost.
Description
Technical field
The utility model relates to mechanical field, relates in particular to the washing machine with 6 utmost points, 36 slot motors.
Background technology
The motor that is used for horizontal axis washer (HAW) typically needs wide speed adjustable range, in order to drive washing machine in laundry cycles and spin cycle normal operation.For satisfying simultaneously the driving requirement of low speed washing and high speed dewatering, roller washing machine requires its drive motor that very high speed adjustable range must be arranged, and the speed ratio of motor reaches about 30:1 usually.Motor operation is in the low rotation speed large torque state during the washing, and motor speed is generally 400rpm-800rpm.Motor operation is in the little torque condition of high rotating speed during the dehydration, and motor speed is 14000rpm-18000rpm usually.The speed adjustable range of the brushless permanent magnet electromotor of a lot of variable frequency induction motor and belt drives is 500rpm-18000rpm, and so high speed ratio requires motor to have 5 times or higher weak magnetic scope at least.
Stator diameter equal and motor scope less than 6.3 inches (160mm) in, the applicant applied for patent US20080203846A1 to 4 utmost points, 36 slot motors the application in roller washing machine protect.Although 4 utmost points, 36 groove variable frequency induction motor and the built-in brushless permanent magnet electromotor of magnet steel can both satisfy so wide speed governing requirement, the detersive efficiency of 4 utmost points, 36 groove aluminum steel variable frequency induction motor is only up to about 45%.And for 4 utmost points, 36 groove permanent magnet motors, owing to will satisfy the weak magnetic requirement of large multiple when dewatering, its detersive efficiency neither be very high as a result, is essentially 50% more youngster.As for the noise of motor when the high speed, because slot effect 4 pole motors can produce the noise of 4 frequencys multiplication, and motor generally operates in about 15000rpm during dehydration, the 4 frequency multiplication sound of this moment just in time be people's ear than more sensitive 1000Hz about.In addition, for roller washing machine, the permanent magnet motor that use in batches in present market is rare earth copper cash motor, efficient is high but expensive, household electric appliances are difficult to bear, and along with the day of the energy is becoming tight, high-level Washer Energy Standard and incentive policy are about to release simultaneously.The high-efficiency and low-cost that for this reason, can address the above problem in household electric appliances people an urgent demand, the motor of low noise.
The utility model content
In order to overcome the above problems, the utility model provides the washing machine with 6 utmost points, 36 slot motors.So that the centre frequency of the noise that produces owing to the utmost point effect of grooves, reduces people's ear away from 1000Hz to the susceptibility of this sound, and efficient is high, cost is low.
In one embodiment, the utility model provides a kind of washing machine, comprising: washing container; Rotor, described rotor are 6 utmost point rotors, and described rotor is connected to described washing container, so that around the described washing container of horizontal rotational shaft; Stator, described stator are 36 groove stators, and described stator has inner chamber, and described inner chamber holds described 6 utmost point rotors that are in the electromagnetic coupled relation with described 36 groove stators.
In a preferred embodiment, described rotor is 6 utmost point spoke type ferrite permanent-magnet rotors.
In a preferred embodiment, the iron core of described rotor and magnet steel are integrally formed structure by plastic injection.
In a preferred embodiment, respectively form a plastics end ring at the two ends of described rotor, so that the balance of rotor integral body is gone heavily.
In a preferred embodiment, described washing machine also comprises driving governor, described driving governor drives described rotor by described stator, so that in the speed rotation of rotor described in the spin cycle with 14000rpm at least, at rotor described in the laundry cycles with the speed rotation less than 600rpm.
In a preferred embodiment, described stator has at least 0.63 internal diameter and minimum outer diameter ratio, in order to be adapted to weak magnetic than being the weak-magnetic speed-regulating of 5:1 at least.
In a preferred embodiment, described rotor has slotted eye at the pole center position, so that injected plastic is to strengthen rotor mechanical intensity.
In a preferred embodiment, described rotor is provided with for the spoke band that is connected with rotor hub with magnetic pole, with the mechanical connection of the rotor hub part of the rotor magnetic pole part that realizes forming magnetic circuit and transmitting torque.
In a preferred embodiment, the sealing of the outer cause iron core bridge of the magnet steel groove of described rotor is so that the noise when reducing high speed.
In a preferred embodiment, be provided with lance tooth on the outer rim of the rotor hub of described rotor, in order to bear the moment of torsion transmission with the plastic construction of injection.
By adopting the washing machine with 6 utmost points, 36 slot motors of the present utility model, the 6 pole motor utmost point effects of grooves can produce 6 multiple-frequency vibrations and noise, and this centre frequency that can make utmost point groove noise reduces people's ear to the susceptibility of this sound away from 1000Hz.Because the induction conductivity winding does not need special plastic skeleton, and spooling equipment not only cheaply but also popularize, 6 utmost points/36 groove permanent magnet motors can be shared and the duplicate winding of induction conductivity and the coiling equipment that rolls off the production line, so the ferrite aluminum steel permanent magnet motor of 6 utmost points/36 grooves possesses expensive low, the low characteristics of people's ear sensation noise of efficient.
Description of drawings
Fig. 1 is the block diagram according to the horizontal axis washer of an embodiment of the present utility model, and it has the washing container that is driven by 6 utmost points, 36 slot motors;
Fig. 2 is the sectional view according to the stator of an embodiment of the present utility model;
Fig. 3 is the sectional view according to the rotor of an embodiment of the present utility model;
Fig. 4 is the end view according to plastic package rotor assembly of the present utility model;
Fig. 5 is the side direction view according to plastic package rotor assembly of the present utility model.
The specific embodiment
In one embodiment, the utility model proposes the decision design to the design of 6 pole motors, 6 pole motors can produce 6 multiple-frequency vibrations and noise, and this centre frequency that can make utmost point groove noise reduces people's ear to the susceptibility of this sound away from 1000Hz.Because the induction conductivity winding does not need special plastic skeleton, and spooling equipment not only cheaply but also popularize, 6 utmost points/36 groove permanent magnet motors can be shared and the duplicate winding technique of induction conductivity and the equipment that rolls off the production line, so the ferrite aluminum steel permanent magnet motor of 6 utmost points/36 grooves possesses cost-effective characteristics.
In one embodiment, the combination of 6 utmost point rotors and 36 groove stators with interior diameter (ID) greater than 0.63/minimum exterior diameter (mOD) ratio provides 5:1 or larger weak magnetic scope.This diameter is than also making flux loss reduce by 20%.
Have been found that according to the utility model various embodiments, large diameter of stator bore has increased torque density, has reduced operating current with 6 utmost points, 36 slot motors of external diameter than (greater than 0.63).36 grooves have also reduced the thermal resistance between winding conducting wire and the groove periphery simultaneously.The result is so that the radiating effect of motor is better, and temperature reduces, and has brought the less aluminum steel of selection use less copper cash or to(for) same whole temperature rise.So, for same moment of torsion, the stack length of stator lamination can be reduced, and simultaneously, keeps speed adjustable range and weak magnetic requirement.The stack length that reduces is converted into the weight that reduces, the work that reduces and material cost, the weight amount of the supporting size that reduces and the cost of transportation that reduces.
In the utility model one embodiment shown in Figure 1, horizontal axis washer comprises washing container 100, and it is supported for around trunnion axis H and rotates.The motor that is used for the driving washing container comprises: 6 utmost point rotors 102; 36 groove stators 104, it has the winding by driving governor 105 energisings.6 utmost point rotors for example are connected to washing container by driving shaft, in order to make washing container 100 around horizontal rotational shaft.
In one embodiment, in spin cycle, stator 104 is by driving governor 105 energisings, so that rotor 102, thereby with the speed drive washing container 100 of 14000rpm at least, in laundry cycles, stator 104 is by driving governor 105 energisings around trunnion axis H, so that rotor 102, thereby with the speed drive washing container 100 less than 600rpm.This means that driving governor is with the weak magnetic scope service meter of about 6:1.This driving governor has the hardware configuration the same from 4 utmost point motor drivers but drives software and has the different frequencies line of buckling.
Fig. 3 shows the rotor according to an embodiment of the present utility model, and it comprises rotor hub 1, magnetic pole 2, the spoke band 3 that is connected with magnetic pole with rotor hub, the lance tooth 4 that is used for transmitting torque is used for the slotted eye 5 of injected plastic, magnet steel groove 6 and be used for the iron core bridge 7 of the outer rim of sealed magnetic steel tank 6.Wherein, have slotted eye 5 at the pole center position being used for injected plastic, thereby strengthen rotor mechanical intensity, rotor solution body deformability when avoiding high speed.Be provided with the spoke band 3 that is connected with magnetic pole with rotor hub, to realize forming the rotor magnetic pole part of magnetic circuit and the rotor hub mechanical connection partly of transmitting torque.The outer rim of magnet steel groove 6 is by iron core bridge 7 sealing, so that the noise when reducing high speed.Bear the moment of torsion transmission at the lance tooth 4 that the outer rim of rotor hub arranges with the plastic construction of injection.
Compare 2 utmost points or 4 pole motors, the winding packet header at 6 pole motor stator two ends of the present utility model is less, causes the enamel-covered wire utilization rate to increase.36 groove stator winding of the present utility model coiling does not need special coil winding machine, and its winding construction is the same with induction conductivity, can with induction conductivity general the same common coil winding machine and technique, reduced equipment investment.
Large external diameter rotor of the present utility model is compared with little external diameter rotor, has higher torque density, thereby the few cost of motor materials is low.For same speed governing and weak magnetic scope, motor of the present utility model has shorter folded thick, thereby causes motor weight still less, and producer still less, worker's material cost, balance are still less gone weight, logistics cost still less.
Spoke type Interior permanent magnet permanent magnet motor of the present utility model is a kind of permasyn morot with large magnetic steel structure, so the efficient high power density of motor is large.Spoke type Interior permanent magnet structure has following two advantages at least: 1. large salient pole coefficient, 2. high magnetic flux.Large salient pole coefficient can increase reluctance torque, improves all favourable to low speed and high torque.Simultaneously, large-sized magnet steel can produce large magnetic flux, and large magnetic flux produces larger electromagnetic torque.
Except as otherwise noted, the operating characteristics of the embodiment of the present utility model that introduces here and illustrate or execution sequence are not internals.That is to say, except as otherwise noted, operation can be carried out with any order, and embodiment of the present utility model can comprise except the additional or less operation disclosed here.For example, can expect, before an operation, carry out simultaneously or afterwards or the operation specific operation belongs to the scope of example of the present utility model.
When introducing the element of the utility model or embodiment, article " ", " one ", " being somebody's turn to do ", " described " are intended to expression and have one or more this element.Term " comprises ", " comprising " and " having " comprising property, and existence other element except listed element that is intended to express possibility.
Owing to can above-mentioned structure be carried out multiple modification in the situation that do not break away from scope of the present utility model, top specification comprises and all themes shown in the drawings will be interpreted as illustrative, rather than restrictive.
Above embodiment of the present utility model is had been described in detail; the above only is embodiment of the present utility model; for a person skilled in the art; the utility model can have multiple variation and change; all within spirit of the present utility model and principle, any modification of making or be equal to is replaced etc. and all should be included in the protection domain of the present utility model.
Claims (10)
1. washing machine comprises:
Washing container;
Rotor, described rotor are 6 utmost point rotors, and described rotor is connected to described washing container, so that around the described washing container of horizontal rotational shaft;
Stator, described stator are 36 groove stators, and described stator has inner chamber, and described inner chamber holds described 6 utmost point rotors that are in magnetic coupling relation with described 36 groove stators.
2. according to claim 1 washing machine, wherein, described rotor is 6 utmost point spoke type ferrite permanent-magnet rotors.
3. according to claim 1 washing machine, wherein, iron core and the magnet steel of described rotor are integrally formed structure by plastic injection.
4. according to claim 1 washing machine wherein, respectively forms a plastics end ring at the two ends of described rotor.
5. according to claim 1 washing machine, described washing machine also comprises driving governor, described driving governor drives described rotor by described stator, so that in the speed rotation of rotor described in the spin cycle with 14000rpm at least, at rotor described in the laundry cycles with the speed rotation less than 600rpm.
6. according to claim 1 washing machine, wherein, described stator has at least 0.63 internal diameter and minimum outer diameter ratio.
7. according to claim 1 washing machine, wherein, described rotor has slotted eye at the pole center position.
8. according to claim 1 washing machine, wherein, described rotor is provided with for the spoke band that is connected with rotor hub with magnetic pole.
9. according to claim 1 washing machine, wherein, the outer cause iron core bridge sealing of the magnet steel groove of described rotor.
10. according to claim 1 washing machine wherein, is provided with lance tooth on the outer rim of the rotor hub of described rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574191 CN202898810U (en) | 2012-11-02 | 2012-11-02 | Washing machine with 6-pole 36-groove motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220574191 CN202898810U (en) | 2012-11-02 | 2012-11-02 | Washing machine with 6-pole 36-groove motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202898810U true CN202898810U (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220574191 Expired - Fee Related CN202898810U (en) | 2012-11-02 | 2012-11-02 | Washing machine with 6-pole 36-groove motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202898810U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938255A (en) * | 2017-11-07 | 2018-04-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Washing machine |
-
2012
- 2012-11-02 CN CN 201220574191 patent/CN202898810U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107938255A (en) * | 2017-11-07 | 2018-04-20 | 珠海格力节能环保制冷技术研究中心有限公司 | Washing machine |
| CN107938255B (en) * | 2017-11-07 | 2023-11-07 | 珠海格力节能环保制冷技术研究中心有限公司 | washing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20161102 |