CN105780373A - Power device of dual-drive washing machine - Google Patents
Power device of dual-drive washing machine Download PDFInfo
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- CN105780373A CN105780373A CN201410807385.2A CN201410807385A CN105780373A CN 105780373 A CN105780373 A CN 105780373A CN 201410807385 A CN201410807385 A CN 201410807385A CN 105780373 A CN105780373 A CN 105780373A
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- washing machine
- slide block
- impeller shafts
- dual drive
- stator
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Abstract
The invention discloses a power device of a dual-drive washing machine.The power device comprises a direct drive motor, the direct drive motor comprises a stator, an inner rotor mounted at the inner side of the stator and an outer rotor mounted at the outer side of the stator, the power device of the dual-drive washing machine further comprises a dehydration shaft fixedly connected with the outer rotor, an impeller shaft connected with the inner rotor and a slide block arranged between the impeller shaft and the inner rotor; the power device is characterized in that the impeller shaft is sleeved with the slide block, one or more pairs of key groove structures are arranged between the slide block and the impeller shaft enable the slide block to slide in the axial direction of the impeller shaft and can drive the impeller shaft to rotate along the axis of the impeller shaft, a protruding block is arranged on the slide block, and a groove in occlusion with the protruding block is formed in the inner rotor.The power device is low in noise, low in energy consumption, simple in structure and capable of achieving switching between washing and spinning-drying easily and conveniently, and clothes are protected from drawing in spinning-drying operation.
Description
Technical field
The invention belongs to mechanical field, particularly the power set of a kind of washing machine.
Background technology
Medicated clothing is washed by washing machine of the prior art by stirring current generation eddy current, the washability of medicated clothing is directly proportional to the rotating speed of current, that is, the rotating speed of current is more fast, the clean result of medicated clothing is more good, so improving current rotating speed often through increase engine power in traditional single-power washing machine, but the restriction due to washing machine volume Yu energy consumption, the development of single-power washing machine is restricted, based on this, two-power washing machine arises at the historic moment, in order to reach to increase the purpose of current rotating speed, the dehydration barrel of washing machine increases impeller, current rotating speed is greatly improved by impeller and dehydration barrel counter-rotating, and in order to realize the counter-rotating of impeller and dehydration barrel, prior art has two schemes, scheme one is to adopt monomotor to drive, by gear train, engine power is transferred to impeller；Scheme two is to adopt twin-engined drivings, and high-torque electromotor drives dehydration barrel, and little moment electromotor drives impeller.Two schemes has respective problem, scheme one to adopt gear train transmission power, can produce a large amount of noise, and gear train abrasion is huge in washing machine work process, and later maintenance cost is higher；Scheme two adopts twin-engined driving, each electromotor to be required for being equipped with control module, causes washing machine overall volume to increase, controls complexity, and increases than monomotor energy consumption.
Patent documentation proposes a kind of solution, namely utilize monomotor that internal rotor, stator arranged outside outer rotor are set inside stator, internal rotor, outer rotor drive impeller and dehydration barrel respectively through respective clutch, but do not provide the concrete structure of clutch, only describe Guan Bi internal rotor and the clutch of impeller during washing, during drying, close the clutch of outer rotor and dehydration barrel.
So in prior art at least there is some problem following in the Dual Drive power set of washing machine:
(1) monomotor transmits power by gear train and realizes Dual Drive, and the big abrasion of gear train noise is big, and maintenance cost is high；
(2) twin-engined control complexity, energy consumption is high；
(3) monomotor arranges internal rotor and outer rotor, and inner and outer Rotator is connected with dehydration barrel with impeller respectively through clutch, and double clutch controls complexity, it is impossible to conveniently realize washing and the conversion dried；
(4) when spin-drying operation, there is speed discrepancy between impeller and dehydration barrel, even if the two controls also to be difficult to synchronous axial system by controller accurately, when this will cause drying medicated clothing, impeller and dehydration barrel pull medicated clothing, cause laundry damage.
Summary of the invention
It is an object of the invention to solve at least one problems of the prior art.
It is an object of the invention to solve the problem that in prior art, the power set of Dual Drive washing machine can not realize washing operation and spin-drying operation switching simply and easily.
nullThe invention provides the power set of a kind of Dual Drive washing machine，Including including shell 14、It is fixedly mounted on the support 19 within shell 14、It is arranged on the direct driving motor on support 19，Described direct driving motor includes the stator 13 being fixedly mounted on support 19、It is arranged on the internal rotor 1 inside stator 13、It is arranged on the outer rotor 9 outside stator 13，The power set of described Dual Drive washing machine also include the dehydrating shaft 11 being directly fixedly mounted on outer rotor 9、The impeller shafts 12 being connected with internal rotor 1、It is arranged on the slide block 8 between impeller shafts 12 and internal rotor 1，Described slide block 8 is sleeved on impeller shafts 12，Between slide block 8 and impeller shafts 12, at least one pair of keyway arrangements is set along the bus of impeller shafts 12，Make the slide block 8 can sliding axially and impeller shafts 12 can be driven to rotate around the axis of impeller shafts 12 along impeller shafts 12，At slide block 8, projection 6 is set on the face of internal rotor 1，The groove 2 being engaged with projection 6 phase is set on the face of slide block 8 at internal rotor 1.
Adopt the power set of the Dual Drive washing machine of the present invention, during washing operation, control slide block 8 to slide near the direction of internal rotor 1, projection 6 is engaged with groove 2 phase, internal rotor 1 band movable slider 8 rotates, and slide block 8 drives impeller shafts 12 to rotate by keyway arrangements, and outer rotor 9 turns to contrary with internal rotor 1, cause that dehydration barrel turns to impeller contrary, complete washing operation；During spin-drying operation, internal rotor power-off, slide block 8 slides to the direction away from internal rotor 1 so that projection 6 and groove 2 are separated, and cause that impeller shafts 12 is in relative state freely with internal rotor 1, and namely impeller shafts 12 runs out of steam, thus completing spin-drying operation.It is to say, washing operation and spin-drying operation just can be switched by controlling slide block 8 simply and easily along the slip that impeller shafts 12 is axial.
Further, groove 18 is set on the face of dehydrating shaft 11 at slide block 8, the projection 17 being engaged with groove 18 phase is set at dehydrating shaft 11 on the face of slide block 8, and groove 18 and projection 17, projection 6 and groove 2 same time only have and can be mutually twisted for a pair.
After washing operation completes; internal rotor power-off; slide block 8 to away from internal rotor 1 and direction near dehydrating shaft 11 slide; projection 6 is separated with groove 2, groove 18 and projection 17 phase are engaged; cause impeller shafts 12 to be in relative state freely with internal rotor 1 but with dehydrating shaft 11 synchronous axial system; make impeller and dehydration barrel synchronous axial system, medicated clothing will not be produced any type of pullling, farthest protect medicated clothing.
Further, present invention additionally comprises the magnet 7 being arranged on support 19, the slide block 8 axial slip along impeller shafts 12 can be controlled by controlling the power on/off of magnet 7.
Further, stator 13 is arranged on support 19 by hollow bolt, and power line, holding wire are extended to shell 14 outside by the hollow space of hollow bolt by shell 14 is internal and is fixed by fixing band 16.
Utilize hollow bolt fixed stator 13 to be possible not only to power line, holding wire be drawn easily, farthest save space simultaneously.
Further, arranging bearing 4 between impeller shafts 12 and internal rotor 1, the inner ring of bearing 4 is fixedly mounted on impeller shafts 12, and the outer ring of bearing 4 is fixedly mounted on internal rotor 1.
Bearing 4 can at the axially set wave wheel shaft 12 of impeller shafts 12, and the structure making the present invention is more stable, reliable.
Further, the inner ring of bearing 4 is fixedly mounted on impeller shafts 12 by nut 3 and pad 5.
Further, arranging bearing 20 between dehydrating shaft 11 and support 19, the inner ring of bearing 20 is fixedly mounted on dehydrating shaft 11, and the outer ring of bearing 20 is fixedly mounted on support 19.
Further, dehydrating shaft 11 is fixedly mounted on outer rotor 9 by screw 10.
Further, stator 13 is provided with a set of electromagnetism winding, a set of magnetic modulation ring.
In sum, adopt the power set of the Dual Drive washing machine of the present invention, during washing operation, slide block 8 slides near the direction of internal rotor 1 so that projection 6 is engaged with groove 2 phase, and internal rotor 1 band movable slider 8 rotates, slide block 8 drives impeller shafts 12 to rotate by keyway arrangements, and outer rotor 9 turns to contrary with internal rotor 1, cause that dehydration barrel turns to impeller contrary, complete washing operation；During spin-drying operation, internal rotor power-off, slide block 8 slides to the direction away from internal rotor 1 so that projection 6 and groove 2 are separated, and cause that impeller shafts 12 is in relative state freely with internal rotor 1, and namely impeller shafts 12 runs out of steam, thus completing spin-drying operation.That is; washing operation and spin-drying operation can be switched simply and easily; and after improving further; after washing operation completes; internal rotor power-off; control slide block 8 to away from internal rotor 1 and slide in direction near dehydrating shaft 11; projection 6 is separated with groove 2, groove 18 and projection 17 phase are engaged; cause impeller shafts 12 to be in relative state freely with internal rotor 1 and with dehydrating shaft 11 synchronous axial system; make impeller and dehydration barrel synchronous axial system; medicated clothing will not be produced any type of pullling, farthest protect medicated clothing.
Accompanying drawing explanation
Fig. 1 is Dual Drive washing machine direct driving motor schematic diagram；
Fig. 2 is that Dual Drive washing machine power set embodiment 2 washs operating mode schematic diagram；
Fig. 3 is part A enlarged diagram in Fig. 2；
Fig. 4 is that Dual Drive washing machine power set embodiment 2 dries operating mode schematic diagram；
Fig. 5 is part B enlarged diagram in Fig. 4；
Fig. 6 is the schematic diagram that Dual Drive washing machine power set embodiment 3 washs operating mode；
Fig. 7 is C portion close-up schematic view in Fig. 6；
Fig. 8 is the schematic diagram that Dual Drive washing machine power set embodiment 3 dries operating mode；
Fig. 9 is D part close-up schematic view in Fig. 8.
Detailed description of the invention
Embodiment 1
Fig. 1 show Dual Drive washing machine direct driving motor schematic diagram, illustrates embodiment 1 below in conjunction with Fig. 1.
The present embodiment includes support 19, be arranged on support 19 stator 13, it is arranged on the outer rotor 9 outside stator 13 and is arranged on the internal rotor 1 inside stator 13, when the electromagnetism winding of stator 13 is energized, the magnetic field around stator 13 will be produced, magnetic direction outside stator 13 is contrary with the magnetic direction inside stator 13, cause electromagnetic force in opposite direction produced outside stator 13 and inside stator 13, thus outer rotor 9 is contrary with turning to of internal rotor 1.It is to say, the present embodiment adopts a set of electromagnetism winding, a set of magnetic modulation ring just can realize two rotors and rotate round about, wear and tear little, noise is low, it is low to consume energy and saves big quantity space.
Embodiment 2
Fig. 2 show Dual Drive washing machine power set embodiment 2 and washs operating mode schematic diagram, Fig. 3 show in Fig. 2 part A enlarged diagram, Fig. 4 show Dual Drive washing machine power set embodiment 2 and dries operating mode schematic diagram, and Fig. 5 show in Fig. 4 part B enlarged diagram.
nullBelow in conjunction with Fig. 2、Fig. 3、Fig. 4 and Fig. 5 illustrates the power set embodiment 2 of Dual Drive washing machine，It includes: shell 14、It is fixedly mounted on the support 19 within shell 14、It is arranged on the direct driving motor on support 19，Described direct driving motor includes the stator 13 being fixedly mounted on support 19、It is arranged on the internal rotor 1 inside stator 13、It is arranged on the outer rotor 9 outside stator 13，The power set of described Dual Drive washing machine also include the dehydrating shaft 11 that be connected fixing with outer rotor 9、The impeller shafts 12 being connected with internal rotor 1、It is arranged on the slide block 8 between impeller shafts 12 and internal rotor 1，Described slide block 8 is sleeved on impeller shafts 12，At least one pair of keyway arrangements is set between slide block 8 and impeller shafts 12，Make the slide block 8 can sliding axially and impeller shafts 12 can be driven to rotate around the axis of impeller shafts 12 along impeller shafts 12，Slide block 8 arranges projection 6，Internal rotor 1 arranges the groove 2 being engaged with projection 6 phase.
The present embodiment also includes the magnet 7 being arranged on support 19, can control the slide block 8 axial slip along impeller shafts 12 by controlling the power on/off of magnet 7.
Stator 13 can be arranged on support 19 by hollow bolt, by the hollow space of hollow bolt, power line, holding wire is outside to shell 14 by the internal amplification of shell 14, and is fixed by fixing band 16.
Arranging bearing 4 between impeller shafts 12 and internal rotor 1, the inner ring of bearing 4 is fixedly mounted on impeller shafts 12, and the outer ring of bearing 4 is fixedly mounted on internal rotor 1.
The inner ring of bearing 4 is fixedly mounted on impeller shafts 12 by nut 3 and pad 5.
Arranging bearing 20 between dehydrating shaft 11 and support 19, the inner ring of bearing 20 is fixedly mounted on dehydrating shaft 11, and the outer ring of bearing 20 is fixedly mounted on support 19.
Dehydrating shaft 11 is connected by screw 10 is fixing with outer rotor 9.
Stator 13 is provided with a set of electromagnetism winding, a set of magnetic modulation ring.
Adopt the power set of the Dual Drive washing machine of the present embodiment, when carrying out washing operation, Magnet 7 power on/off state changes, slide block 8 is axial along impeller shafts 12, slide near the direction of internal rotor 1, projection 6 is engaged with groove 2, internal rotor 1 rotates around the axis of impeller shafts 12 with movable slider 8, due to the effect of keyway arrangements between slide block 8 and impeller shafts 12, slide block 8 drives impeller shafts 12 to rotate around the latter's axis, now owing to stator 13 inner and outer magnetic direction is contrary, outer rotor 9 turns to contrary with internal rotor 1, and outer rotor 9 is fixed with dehydrating shaft 11 and is connected, cause that dehydrating shaft 11 turns to contrary with impeller shafts 12, thus the dehydration barrel in washing machine turns to contrary with impeller, strong vortex can be produced at washing machine internal medicated clothing is washed.
After washing completes; internal rotor power-off; Magnet 7 power on/off state changes, slide block 8 along impeller shafts 12 axial, slides to the direction away from internal rotor 1, projection 6 and groove 2 depart from; impeller shafts 12 is in relative state freely with internal rotor 1; it is to say, impeller shafts 12 is now no longer provided power by internal rotor 1, impeller runs out of steam; medicated clothing in drying will not be pullled, drying process plays the effect of protection medicated clothing.
The present embodiment can pass through the Dual Drive washing that when dual-rotor direct drive motor realizes washing medicated clothing, impeller and dehydration barrel rotate round about; and be capable of washing operating mode and the switching simply and easily drying operating mode, and in drying process, protect medicated clothing to a certain extent.
Embodiment 3
Fig. 6 show Dual Drive washing machine power set embodiment 3 and washs the schematic diagram of operating mode, Fig. 7 show in Fig. 6 C portion close-up schematic view, Fig. 8 show Dual Drive washing machine power set embodiment 3 and dries the schematic diagram of operating mode, and Fig. 9 show in Fig. 8 D part close-up schematic view.
nullBelow in conjunction with Fig. 6、Fig. 7、Fig. 8 and Fig. 9 illustrates Dual Drive washing machine power set embodiment 3，It includes: shell 14、It is fixedly mounted on the support 19 within shell 14、It is arranged on the direct driving motor on support 19，Described direct driving motor includes the stator 13 being fixedly mounted on support 19、It is arranged on the internal rotor 1 inside stator 13、It is arranged on the outer rotor 9 outside stator 13，The present embodiment also includes the dehydrating shaft 11 that be connected fixing with outer rotor 9、The impeller shafts 12 being connected with internal rotor 1、It is arranged on the slide block 8 between impeller shafts 12 and internal rotor 1，Described slide block 8 is sleeved on impeller shafts 12，At least one pair of keyway arrangements is set between slide block 8 and impeller shafts 12，Make the slide block 8 can sliding axially and impeller shafts 12 can be driven to rotate around the axis of impeller shafts 12 along impeller shafts 12，Slide block 8 arranges projection 6 and groove 18，Internal rotor 1 arranges the groove 2 being engaged with projection 6 phase，Dehydrating shaft 11 arranges the projection 17 being engaged with groove 18 phase.
The present embodiment also includes the magnet 7 being arranged on support 19, can control slide block 8 sliding axially along impeller shafts 12 by controlling the power on/off of magnet 7.
Stator 13 can be arranged on support 19 by hollow bolt, by the hollow space of hollow bolt, power line, holding wire is outside to shell 14 by the internal amplification of shell 14, and is fixed by fixing band 16.
Arranging bearing 4 between impeller shafts 12 and internal rotor 1, the inner ring of bearing 4 is fixedly mounted on impeller shafts 12, and the outer ring of bearing 4 is fixedly mounted on internal rotor 1.
The inner ring of bearing 4 is fixedly mounted on impeller shafts 12 by nut 3 and pad 5.
Arranging bearing 20 between dehydrating shaft 11 and shell 14, the inner ring of bearing 20 is fixedly mounted on dehydrating shaft 11, and the outer ring of bearing 20 is fixedly mounted on shell 14.
Dehydrating shaft 11 is connected by screw 10 is fixing with outer rotor 9.
Stator 13 is provided with a set of electromagnetism winding, a set of magnetic modulation ring.
Adopt the Dual Drive washing machine power set described in the present embodiment, when carrying out washing operation, Magnet 7 power on/off state changes, slide block 8 is axial along impeller shafts 12, move near the direction of internal rotor 1, projection 6 is engaged with groove 2, internal rotor 1 rotates around the axis of impeller shafts 12 with movable slider 8, due to the effect of keyway arrangements between slide block 8 and impeller shafts 12, slide block 8 drives impeller shafts 12 to rotate along the axis of the latter, now owing to stator 13 inner and outer magnetic direction is contrary, outer rotor 9 turns to contrary with internal rotor 1, and outer rotor 9 is fixed with dehydrating shaft 11 and is connected, cause that dehydrating shaft 11 turns to contrary with impeller shafts 12, thus the dehydration barrel in washing machine turns to contrary with impeller, strong vortex can be produced at washing machine internal medicated clothing is washed.
After washing completes, internal rotor power-off, Magnet 7 power on/off state changes, slide block 8 along impeller shafts 12 axially, to away from internal rotor 1 and slide near the direction of dehydrating shaft 11, projection 6 and groove 2 depart from, projection 17 is engaged with groove 18, dehydrating shaft 11 band movable slider 8 rotates, due to the effect of keyway arrangements between slide block 8 and impeller shafts 12, slide block 8 drives impeller shafts 12 to rotate, cause dehydrating shaft 11 and impeller shafts 12 synchronous axial system, thus the dehydration barrel in washing machine and impeller synchronous axial system, the medicated clothing of washing machine internal is dried.
The present embodiment can pass through the Dual Drive washing that when dual-rotor direct drive motor realizes washing medicated clothing, impeller and dehydration barrel rotate round about, and it is capable of washing operating mode and the switching simply and easily drying operating mode, and when drying, impeller shafts and dehydrating shaft synchronous axial system, will not produce any type of pullling to medicated clothing.The present embodiment can not only improve the washability of medicated clothing, and farthest protect medicated clothing when spin-drying operation.
Claims (10)
- null1. the power set of a Dual Drive washing machine，Including direct driving motor，Described direct driving motor includes stator (13)、It is arranged on the internal rotor (1) of stator (13) inner side、It is arranged on the outer rotor (9) in stator (13) outside，The power set of described Dual Drive washing machine also include the dehydrating shaft (11) that be connected fixing with outer rotor (9)、The impeller shafts (12) being connected with internal rotor (1)、It is arranged on the slide block (8) between impeller shafts (12) and internal rotor (1)，It is characterized in that，Described slide block (8) is sleeved on impeller shafts (12)，Between slide block (8) and impeller shafts (12), at least one pair of keyway arrangements is set，Make the slide block (8) can sliding axially and impeller shafts (12) can be driven to rotate around the axis of impeller shafts (12) along impeller shafts (12)，Slide block (8) arranges projection (6)，Internal rotor (1) arranges the groove (2) being engaged mutually with projection (6).
- 2. the power set of Dual Drive washing machine as claimed in claim 1, it is characterized in that, slide block (8) arranges groove (18), the projection (17) being engaged mutually with groove (18) is set at dehydrating shaft (11), and groove (18) and projection (17), projection (6) and groove (2) same time only have and can be mutually twisted for a pair.
- 3. the power set of Dual Drive washing machine as claimed in claim 1 or 2, it is characterised in that also including shell (14) and the support (19) being arranged in shell (14), described stator (13) is arranged on support (19).
- 4. the power set of Dual Drive washing machine as claimed in claim 3, it is characterised in that also include the magnet (7) being arranged on support (19), can control slide block (8) along the axial slip of impeller shafts (12) by controlling the power on/off of magnet (7).
- 5. the power set of Dual Drive washing machine as claimed in claim 4, it is characterized in that, stator (13) is arranged on support (19) by hollow bolt, and power line, holding wire are extended to shell (14) outside by the hollow space of hollow bolt by shell (14) is internal and is fixed by fixing band (16).
- 6. the power set of Dual Drive washing machine as claimed in claim 1 or 2, it is characterized in that, arranging bearing (4) between impeller shafts (12) and internal rotor (1), the inner ring of bearing (4) is fixedly mounted on impeller shafts (12), and the outer ring of bearing (4) is fixedly mounted on internal rotor (1).
- 7. the power set of Dual Drive washing machine as claimed in claim 6, it is characterised in that the inner ring of bearing (4) is fixedly mounted on impeller shafts (12) by nut (3) and pad (5).
- 8. the power set of Dual Drive washing machine as claimed in claim 3, it is characterized in that, arranging bearing (20) between dehydrating shaft (11) and support (19), the inner ring of bearing (20) is fixedly mounted on dehydrating shaft (11), and the outer ring of bearing (20) is fixedly mounted on support (19).
- 9. the power set of Dual Drive washing machine as claimed in claim 1 or 2, it is characterised in that dehydrating shaft (11) is connected by screw (10) and outer rotor (9) are fixing.
- 10. the power set of Dual Drive washing machine as claimed in claim 1 or 2, it is characterised in that be provided with a set of electromagnetism winding on stator (13), a set of magnetic modulation ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410807385.2A CN105780373B (en) | 2014-12-23 | 2014-12-23 | Power device of double-drive washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410807385.2A CN105780373B (en) | 2014-12-23 | 2014-12-23 | Power device of double-drive washing machine |
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| CN105780373A true CN105780373A (en) | 2016-07-20 |
| CN105780373B CN105780373B (en) | 2020-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410807385.2A Active CN105780373B (en) | 2014-12-23 | 2014-12-23 | Power device of double-drive washing machine |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106567224A (en) * | 2016-10-31 | 2017-04-19 | 广东威灵电机制造有限公司 | Impeller washing machine |
| CN107217443A (en) * | 2017-07-18 | 2017-09-29 | 慈溪鑫蕾国际贸易有限公司 | A kind of double-shaft concentric separation type drive mechanism and the washing machine being made up of it |
| WO2018076481A1 (en) * | 2016-10-31 | 2018-05-03 | 广东威灵电机制造有限公司 | Washing machine |
| WO2018076478A1 (en) * | 2016-10-31 | 2018-05-03 | 广东威灵电机制造有限公司 | Washing machine |
| US20200192084A1 (en) * | 2017-05-17 | 2020-06-18 | Valeo Systemes D'essuyage | Device for protecting an optical sensor |
| US11773525B2 (en) | 2019-05-02 | 2023-10-03 | Whirlpool Corporation | Double-rotor washing type drum washing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106567224A (en) * | 2016-10-31 | 2017-04-19 | 广东威灵电机制造有限公司 | Impeller washing machine |
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| WO2018076478A1 (en) * | 2016-10-31 | 2018-05-03 | 广东威灵电机制造有限公司 | Washing machine |
| US20200192084A1 (en) * | 2017-05-17 | 2020-06-18 | Valeo Systemes D'essuyage | Device for protecting an optical sensor |
| US11762194B2 (en) * | 2017-05-17 | 2023-09-19 | Valeo Systemes D'essuyage | Device for protecting an optical sensor |
| CN107217443A (en) * | 2017-07-18 | 2017-09-29 | 慈溪鑫蕾国际贸易有限公司 | A kind of double-shaft concentric separation type drive mechanism and the washing machine being made up of it |
| US11773525B2 (en) | 2019-05-02 | 2023-10-03 | Whirlpool Corporation | Double-rotor washing type drum washing machine |
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|---|---|
| CN105780373B (en) | 2020-01-07 |
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