A washing machine driving device, a washing machine and a control method thereof

Abstract

The application discloses a washing machine driving device, a washing machine and a control method thereof. The washing machine driving device comprises a pulsator shaft, an inner tub shaft rotatably sleeved on the outer periphery of the pulsator shaft, a power component comprising a first rotary output and a second rotary output which can be independently controlled, the first rotary output being connected to the pulsator shaft, and the second rotary output being connected to the inner tub shaft, a clutch component comprising a clutch sleeve sleeved on the outer periphery of the inner tub shaft, the clutch sleeve being in clearance fit with the inner tub shaft, and the clutch sleeve being driven to reciprocate along the axial direction of the inner tub shaft, when the clutch sleeve moves in a first direction, the first rotary output and the second rotary output are connected into an integral structure by the clutch sleeve, synchronous rotation is realized, when the clutch sleeve moves in a second direction opposite to the first direction, the clutch sleeve disconnects the first rotary output and the second rotary output, and the first rotary output and the second rotary output can independently rotate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laundry equipment, in particular to a washing machine driving device, a washing machine and a control method thereof. BACKGROUND

[0002] A full-automatic impeller washing machine is a kind of household appliance which is widely used. Its structure generally comprises an outer drum, an inner drum arranged in the outer drum, and an impeller arranged in the inner drum. The outer drum is used for containing washing water, and the inner drum can be driven to rotate at high speed for dewatering. The impeller can be driven to rotate in the inner drum to stir the washing water to form a washing water flow for washing clothes.

[0003] In the prior art, the full-automatic impeller washing machine controls the motor to drive the impeller to rotate in opposite directions to form a washing water flow during washing, and controls the motor to drive the impeller and the inner drum to rotate at the same speed and in the same direction at high speed to realize centrifugal dewatering of clothes in the inner drum during dewatering. Since only the impeller rotates during washing, the rotating mode is relatively simple, and the flow direction of the washing water flow is too simple. Therefore, the washing water flow has a poor scouring effect on clothes, and the regular single-impeller rotation in opposite directions causes serious entanglement of clothes.

[0004] To solve the above problems, the diversity of the washing water flow generated during washing is increased, which can not only increase the washing effect of clothes, but also reduce the entanglement of clothes. Therefore, a double-power washing machine appears. The main difference between the double-power washing machine and the traditional full-automatic impeller washing machine is that the relative rotation of the impeller and the inner drum is controlled during washing. Thus, since the impeller and the inner drum rotate in the washing water, more diverse washing water flows can be generated in the washing water, the washing effect of clothes is improved, and the diversity of the washing water flow can reduce the entanglement of clothes.

[0005] The prior art controls the relative rotation of the inner drum and the impeller in opposite directions during washing of the double-power washing machine, which is generally realized by a speed reduction clutch device. Through the joint action of the speed reduction clutch device, the speed reduction gear train and the clutch mechanism, the power transmission effect of "one input and two outputs" is realized, and the power driving of the double-power washing machine is realized. However, the power driving of the double-power washing machine by the speed reduction clutch device has certain requirements for the structural design and durability of the speed reduction clutch device, and the rotating mode of the inner drum and the impeller is limited by the design of the speed reduction clutch device.

[0006] Therefore, another implementation mode of realizing double-power washing machine is proposed, which realizes double-power washing of washing machine through double-rotor motor, the double-rotor motor includes two rotors, the two rotors drive the pulsator and the inner tub respectively, and various operation modes of the pulsator and the inner tub can be realized by controlling the operation of the double-rotor motor, which is controllable in terms of speed and direction. However, the pulsator and the inner tub need to be kept synchronous high-speed rotation during the dehydration process of the washing machine, and the double-power mode realized through the speed reduction clutch device is to keep the integrated mechanical locking of the pulsator shaft and the inner tub shaft, and for the double-rotor motor, it is required to ensure that the two rotors rotate completely synchronously, and the control requirement and precision requirement are high, so the double-rotor motor has certain implementation difficulty.

[0007] Therefore, the present application is proposed. SUMMARY

[0008] In order to solve the above problems, the present application aims to solve the problems of high control requirement and high implementation requirement during the dehydration process when the double-rotor motor is used as the power component of the full-automatic pulsator washing machine, and provides a washing machine driving device, a washing machine and a control method thereof, the washing machine driving device can increase the diversity of water flow during the washing process of the washing machine, and the dehydration process control is more simple and effective, and specifically, the following technical scheme is adopted:

[0009] A washing machine driving device, comprising:

[0010] a pulsator shaft;

[0011] an inner tub shaft, rotatably sleeved on the outer periphery of the pulsator shaft;

[0012] a power component, including a first rotation output and a second rotation output which can be independently controlled, the first rotation output is connected to the pulsator shaft, and the second rotation output is connected to the inner tub shaft;

[0013] a clutch component, including a clutch sleeve sleeved on the outer periphery of the inner tub shaft, the clutch sleeve is in clearance fit with the inner tub shaft, and the clutch sleeve is driven to reciprocate along the axial direction of the inner tub shaft;

[0014] when the clutch sleeve moves in a first direction, the first rotation output and the second rotation output are connected as an integral structure by the clutch sleeve, so as to realize synchronous rotation, when the clutch sleeve moves in a second direction opposite to the first direction, the clutch sleeve disconnects the first rotation output and the second rotation output, and the first rotation output and the second rotation output can rotate independently.

[0015] As an optional embodiment of the present application, the power component includes a stator, the first rotation output is an outer rotor arranged on the outer periphery of the stator, and the second rotation output is an inner rotor arranged on the inner periphery of the stator;

[0016] The impeller shaft passes through the center through hole of the inner rotor and is connected with the outer rotor, and the inner tub shaft is fixedly connected with the center through hole of the inner rotor;

[0017] The inner rotor is provided with an inner rotor engaging part for engaging with the clutch sleeve, and the outer rotor is provided with an outer rotor engaging part for engaging with the clutch sleeve.

[0018] As an optional embodiment of the present application, the clutch sleeve comprises a sleeve body sleeved on the outer periphery of the inner tub shaft, engaging teeth arranged on one side of the sleeve body, and a clutch sleeve steel sheet arranged on the other side of the sleeve body, and the clutch component further comprises an electromagnet arranged close to the side of the clutch sleeve steel sheet.

[0019] The washing machine driving device comprises a mounting component, the stator of the power component is fixedly mounted on the mounting component, the electromagnet is fixedly mounted on the mounting component, and a reset spring is arranged between the clutch sleeve and the mounting component.

[0020] The electromagnet is powered, the clutch sleeve steel sheet on the clutch sleeve is attracted by the electromagnet and moves in the second direction, the clutch sleeve compresses the reset spring in the process of moving in the second direction to be attracted on the electromagnet, the electromagnet is powered off, and the clutch sleeve moves in the first direction under the gravity and the elastic force of the reset spring.

[0021] As an optional embodiment of the present application, the inner rotor comprises an inner rotor support body, an inner rotor back yoke and an inner rotor magnet, the inner side of the inner rotor support body has a center through hole fixedly connected with the inner tub shaft, the outer peripheral wall of the inner rotor support body is fixed with the inner rotor back yoke, and the inner rotor magnet is mounted on the outer peripheral side of the inner rotor back yoke.

[0022] The inner rotor engaging part is a plurality of inner rotor tooth grooves arranged in a ring shape on the inner rotor support body, and the engaging teeth of the clutch sleeve can be inserted into the inner rotor tooth grooves for engaging and fixing.

[0023] As an optional embodiment of the present application, the outer rotor comprises an outer rotor support body, an outer rotor back yoke and an outer rotor magnet, the inner side of the outer rotor support body has a center through hole fixedly connected with the impeller shaft, the inner peripheral wall of the outer rotor support body is fixed with the outer rotor back yoke, and the outer rotor magnet is mounted on the inner peripheral side of the outer rotor back yoke.

[0024] The outer rotor engaging part is a plurality of outer rotor tooth grooves arranged in a ring shape on the outer rotor support body, the outer rotor tooth grooves are arranged opposite to the inner rotor tooth grooves, and the engaging teeth of the clutch sleeve can be sequentially inserted into the inner rotor tooth grooves and the outer rotor tooth grooves for engaging and fixing.

[0025] As an optional embodiment of the present application, the stator comprises a stator core, a stator outer winding and a stator inner winding, the stator core forms stator outer teeth on one side and stator inner teeth on the other side, the stator outer winding is wound on the stator outer teeth to form an outer stator part interacting with the outer rotor, the stator inner winding is wound on the stator inner teeth to form an inner stator part interacting with the inner rotor, the stator outer winding is applied with a first driving signal, and the stator inner winding is applied with a second driving signal.

[0026] The present application also provides a washing machine with the washing machine driving device, comprising:

[0027] an inner tub fixedly connected with the inner tub shaft of the washing machine driving device;

[0028] a pulsator arranged inside the inner tub and fixedly connected with the pulsator shaft of the washing machine driving device;

[0029] The rotational speed and direction of the inner tub and the pulsator are controlled by controlling the power component and the clutch component of the washing machine driving device, so as to realize the washing and dewatering working conditions.

[0030] The present application also provides a control method of the washing machine, comprising:

[0031] controlling the clutch sleeve to move in the second direction, so that the clutch sleeve disconnects the first rotating output and the second rotating output, and the rotational direction and speed of the first rotating output and the second rotating output of the power component are controlled respectively, and the pulsator and the inner tub are driven to rotate at the same / different rotational speed and / or the same / different rotational direction, so as to realize the washing working condition;

[0032] controlling the clutch sleeve to move in the first direction, so that the first rotating output and the second rotating output are connected into an integrated structure by the clutch sleeve, and the first rotating output or the second rotating output of the power component is controlled to rotate alone, so as to drive the pulsator shaft and the inner tub shaft to rotate synchronously, and drive the pulsator and the inner tub to rotate at the same speed and in the same direction, so as to realize the dewatering working condition.

[0033] As an optional embodiment of the present application, the washing machine performs the dewatering working condition:

[0034] controlling the electromagnet of the washing machine driving device to be powered off, and controlling the clutch sleeve to move in the first direction;

[0035] controlling the inner rotor of the power component to rotate slowly until the meshing teeth of the clutch sleeve are engaged with the inner rotor and fixed, and the inner rotor stops rotating;

[0036] The outer rotor of the power component is controlled to rotate slowly until the engaging teeth of the clutch sleeve engage with the outer rotor, the outer rotor stops rotating, and the inner rotor and the outer rotor are connected into an integrated structure by the clutch sleeve;

[0037] The inner rotor or the outer rotor of the power component is controlled to operate independently, to drive the pulsator shaft and the inner tub shaft to rotate synchronously, and to drive the pulsator and the inner tub to rotate at the same speed and in the same direction.

[0038] As an optional embodiment of the present application, the washing machine performs a dehydration working condition:

[0039] The inner rotor and the outer rotor of the power component are controlled to rotate to the set positions respectively, and the inner rotor tooth groove on the inner rotor is in a relative position with the outer rotor tooth groove on the outer rotor;

[0040] The electromagnet of the driving device of the washing machine is controlled to be powered off, the clutch sleeve moves in the first direction, the engaging teeth of the clutch sleeve can be sequentially inserted into the inner rotor tooth groove and the outer rotor tooth groove to be engaged and fixed, and the inner rotor and the outer rotor are connected into an integrated structure by the clutch sleeve;

[0041] The inner rotor or the outer rotor of the power component is controlled to operate independently, to drive the pulsator shaft and the inner tub shaft to rotate synchronously, and to drive the pulsator and the inner tub to rotate at the same speed and in the same direction.

[0042] Compared with the prior art, the present application has the following beneficial effects:

[0043] The washing machine driving device of the present application has two power outputs, i.e., a first rotating output and a second rotating output, which are connected to the pulsator shaft and the inner tub shaft respectively, and the first rotating output and the second rotating output can be controlled to operate independently, to drive the pulsator and the inner tub of the washing machine to operate, to realize more operating modes in the washing working condition, to increase the diversity of washing water flow, and to improve the washing effect.

[0044] In addition, the washing machine driving device of the present application comprises a clutch mechanism, and the clutch sleeve of the clutch mechanism performs clutch movement to realize the "separation" and "combination" states of the first rotating output and the second rotating output. When the first rotating output and the second rotating output are in the "separation" state, the first rotating output and the second rotating output can be controlled to operate independently, to realize the washing working condition of the washing machine. When the first rotating output and the second rotating output are in the "combination" state, the first rotating output and the second rotating output are in an integrated structure to rotate synchronously, to realize the dehydration working condition of the washing machine.

[0045] Therefore, the washing machine driving device of the present application, by combining the power component with two rotating outputs with the clutch structure, not only realizes the diversification of the rotation form of the pulsator and the inner drum in the washing process of the washing machine, enriches the diversity of the washing water flow, and improves the washing effect; but also realizes the synchronous rotation of the pulsator and the inner drum in the dehydration process of the washing machine, connects the first rotating output and the second rotating output into one through the clutch mechanism, only needs to control the rotation of any one of the first rotating output and the second rotating output in the dehydration process, drives the synchronous rotation of the other, so as to realize the synchronous rotation of the pulsator shaft and the inner drum shaft, and the realization is simpler, and the clutch component adopts mechanical structure locking, so that the overall structure is more stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 The structure schematic diagram of the washing machine driving device of the embodiment of the present application (washing condition) is shown in the figure.

[0047] Figure 2 The structure schematic diagram of the washing machine driving device of the embodiment of the present application (dehydration condition) is shown in the figure. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments.

[0049] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the claimed present application, but only represents some embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0050] It should be noted that, in the case of no conflict, the embodiments in the present application and the features and technical solutions in the embodiments can be combined with each other.

[0051] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0052] In the description of the application, it should be noted that the terms "upper", "lower", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is used, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0053] Referring to Figure 1 and Figure 2 It is shown that the driving device of the washing machine of the embodiment comprises:

[0054] Impeller shaft 2;

[0055] Inner tub shaft 1, rotatably sleeved on the outer periphery of the impeller shaft 2;

[0056] Power components, including a first rotating output and a second rotating output that can be independently controlled, the first rotating output connected to the impeller shaft 2, and the second rotating output connected to the inner tub shaft 1;

[0057] Clutch components, including a clutch sleeve sleeved on the outer periphery of the inner tub shaft, the clutch sleeve in clearance fit with the inner tub shaft 1, and the clutch sleeve driven to reciprocate along the axial direction of the inner tub shaft 1;

[0058] The clutch sleeve moves in a first direction, the first rotating output and the second rotating output are connected as an integral structure by the clutch sleeve, realizing synchronous rotation, the clutch sleeve moves in a second direction opposite to the first direction, the clutch sleeve disconnects the first rotating output and the second rotating output, and the first rotating output and the second rotating output can rotate independently.

[0059] The washing machine driving device of the embodiment has a power component with two power outputs, i.e., a first rotating output and a second rotating output, which are connected to the impeller shaft 2 and the inner tub shaft 1 respectively, and can be controlled to operate independently to drive the impeller and the inner tub of the washing machine to operate, thereby realizing more operating modes in the washing condition, increasing the diversity of the washing water flow, and improving the washing effect. In addition, the washing machine driving device of the embodiment includes a clutch mechanism, and the clutch sleeve of the clutch mechanism performs clutching movement to realize the "separation" and "combination" states of the first rotating output and the second rotating output. When the first rotating output and the second rotating output are in the "separation" state, the first rotating output and the second rotating output can be controlled to operate independently, thereby realizing the washing condition of the washing machine. When the first rotating output and the second rotating output are in the "combination" state, the first rotating output and the second rotating output are integrated to rotate synchronously, thereby realizing the dehydration condition of the washing machine.

[0060] Therefore, the washing machine driving device of the embodiment combines the power component with two rotating outputs with the clutch structure, thereby not only realizing the diversification of the impeller and the inner tub operating mode in the washing process of the washing machine, enriching the diversity of the washing water flow, and improving the washing effect, but also realizing the synchronous rotation of the impeller and the inner tub in the dehydration process of the washing machine. The first rotating output and the second rotating output are connected as a whole through the clutch mechanism, and only one of the first rotating output and the second rotating output needs to be controlled to operate in the dehydration process, thereby driving the other to operate synchronously, so as to realize the synchronous rotation of the impeller shaft and the inner tub shaft. The realization is simpler, the clutch component adopts a mechanical structure to lock, and the overall structure is more stable and reliable.

[0061] The first rotating output and the second rotating output of the washing machine driving device of the embodiment in the washing condition of the washing machine can be selected to operate in the following modes: the first rotating output and the second rotating output operate in the reverse direction at the same speed, or the first rotating output and the second rotating output operate in the same direction at different speeds.

[0062] As an optional implementation of the embodiment, the power component comprises a stator 20, the first rotating output is an outer rotor 19 arranged on the outer periphery of the stator 20, and the second rotating output is an inner rotor 15 arranged on the inner periphery of the stator 20; the pulsator shaft 2 is connected with the outer rotor 19 through the central through hole of the inner rotor 15, and the inner tub shaft 1 is fixedly connected with the central through hole of the inner rotor 15; the inner rotor 15 is provided with an inner rotor engaging part 10 for cooperating with the clutch sleeve, and the outer rotor 19 is provided with an outer rotor engaging part 11 for cooperating with the clutch sleeve. In this embodiment, the inner rotor engaging part 10 is arranged on the inner rotor 15, the outer rotor engaging part 11 is arranged on the outer rotor 19, the engagement connection between the inner rotor engaging part 10 and the outer rotor engaging part 11 is realized by controlling the movement of the clutch sleeve, the fixed connection between the inner rotor 15 and the outer rotor 19 is realized, and the inner rotor 15 and the outer rotor 19 are synchronously operated.

[0063] Further, the clutch sleeve comprises a sleeve body 7 sleeved on the outer periphery of the inner tub shaft 1, engaging teeth 28 arranged on one side of the sleeve body 7, and a clutch sleeve steel sheet 6 arranged on the other side of the sleeve body 7, the clutch component further comprises an electromagnet 4 arranged close to the side of the clutch sleeve steel sheet 6; the washing machine driving device comprises a mounting component, the stator 20 of the power component is fixedly mounted on the mounting component, the electromagnet 4 is fixedly mounted on the mounting component, and the reset spring 21 is arranged between the clutch sleeve and the mounting component.

[0064] In this embodiment, the electromagnet 4 is powered, the clutch sleeve steel sheet 6 on the clutch sleeve is attracted by the electromagnet 4 and moves in the second direction, the clutch sleeve compresses the reset spring 21 in the process of moving in the second direction to be attracted on the electromagnet 4, the electromagnet 4 is powered off, and the clutch sleeve moves in the first direction under the gravity and the elastic force of the reset spring 21.

[0065] In this embodiment, the washing machine driving device, the electromagnet 4 is powered, the clutch sleeve is attracted by the electromagnet 4, the clutch sleeve is separated from the inner rotor 15 and the outer rotor 19, the power component can realize the operation of the inner rotor 15 and the outer rotor 19 at an arbitrary rotating speed and an arbitrary rotating direction according to program control, the inner rotor 15 drives the inner tub shaft 1 to rotate, and the outer rotor 19 drives the pulsator shaft 2 to rotate. According to the requirements of various working conditions of the washing machine, the program can be set to realize the multifunctional washing function.

[0066] The washing machine driving device of the embodiment, the electromagnet 4 is powered off, the electromagnet 4 loses the adsorption force to the clutch sleeve, the clutch sleeve moves downward under the restoring force of the reset spring 21, at this time, the inner rotor 15 and the outer rotor 19 are controlled to rotate slowly in sequence until the outer rotor engaging portion 11 and the inner rotor engaging portion 10 are concentric, the engaging teeth 28 of the clutch sleeve enter the inner rotor engaging portion 10 and the outer rotor engaging portion 11, and the inner rotor 15 and the outer rotor 19 are integrated. The motor inner rotor 15 and the outer rotor 19 rotate at the same time, drive the pulsator shaft 2 and the inner drum shaft 1 to rotate at high speed at the same time, and realize the dehydration working condition.

[0067] As an optional embodiment of the embodiment, the inner rotor 15 includes an inner rotor support body 14, an inner rotor back yoke 13 and an inner rotor magnet 12, the inner side of the inner rotor support body 14 has a central through hole fixedly connected with the inner drum shaft 2, the outer peripheral wall of the inner rotor support body 14 is fixed with the inner rotor back yoke 13, and the inner rotor magnet 12 is installed on the outer peripheral side of the inner rotor back yoke 13; the inner rotor engaging portion 10 is a plurality of inner rotor tooth grooves arranged in a ring shape on the inner rotor support body 14, and the engaging teeth 28 of the clutch sleeve can be inserted into the inner rotor tooth grooves for engagement and fixation.

[0068] The outer rotor 19 of the embodiment includes an outer rotor support body 16, an outer rotor back yoke 17 and an outer rotor magnet 18, the inner side of the outer rotor support body 16 has a central through hole fixedly connected with the pulsator shaft 2, the inner side of the outer peripheral wall of the outer rotor support body 16 is fixed with the outer rotor back yoke 17, and the outer rotor magnet 18 is installed on the inner peripheral side of the outer rotor back yoke 17; the outer rotor engaging portion 11 is a plurality of outer rotor tooth grooves arranged in a ring shape on the outer rotor support body 16, the outer rotor tooth grooves are arranged opposite to the inner rotor tooth grooves, and the engaging teeth of the clutch sleeve can be inserted into the inner rotor tooth grooves and the outer rotor tooth grooves in sequence for engagement and fixation.

[0069] As an optional implementation of the embodiment, the stator 20 comprises a stator core, a stator outer winding and a stator inner winding. The stator core forms stator outer teeth on one side and stator inner teeth on the other side. The stator outer winding is wound on the stator outer teeth to form an outer stator part interacting with the outer rotor. The stator inner winding is wound on the stator inner teeth to form an inner stator part interacting with the inner rotor. The stator outer winding is applied with a first driving signal and the stator inner winding is applied with a second driving signal. The stator outer winding and the stator inner winding of the embodiment are applied with driving signals respectively. The rotation control of the outer rotor 19 and the inner rotor 15 can be realized by controlling the input signals of the stator outer winding and the stator inner winding. When the washing machine performs dehydration, the rotation of the outer rotor 19 or the inner rotor 15 is realized by controlling the input driving signals of the stator outer winding and the stator inner winding. The outer rotor 19 and the inner rotor 15 are connected as an integrated structure through the clutch cover to realize synchronous rotation.

[0070] As an optional implementation of the embodiment, the mounting component comprises an upper end shell 23 and a lower end shell 22. The upper end shell 23 and the lower end shell 22 are fixedly connected as an integrated structure. The upper end shell 23 and the lower end shell 22 are provided with bearing chambers. The first bearing 24 and the second bearing 3 are installed in the bearing chambers. The inner tub shaft 1 penetrates the inner races of the two bearings.

[0071] The stator 20 and the electromagnet 4 of the power component of the embodiment are fixedly installed on the lower plane of the lower end shell 22 through the bolt 5.

[0072] The inner rotor 15 of the power component of the embodiment is sleeved on the square head at one end of the inner tub shaft 1 and is installed on the plane of the positioning washer 8. The inner rotor 15 is fixedly connected as an integrated structure with the inner tub shaft 1 through the fastening nut 9. The outer rotor 19 is fixedly installed at one end of the pulsator shaft 2 through the spline or the square head connection.

[0073] A large water seal 25 is arranged at the end of the inner tub shaft 1 connected with the inner tub and between the inner tub shaft 1 and the upper end shell 23. A small water seal 27 is arranged at the end of the pulsator shaft 2 connected with the pulsator and between the pulsator shaft 2 and the inner tub shaft 1.

[0074] The shaft sleeve 26 is sleeved between the pulsator shaft 2 and the inner tub shaft 1 of the embodiment.

[0075] The embodiment simultaneously provides a washing machine with the washing machine driving device.

[0076] The inner tub is fixedly connected with the inner tub shaft of the washing machine driving device.

[0077] The pulsator is arranged in the inner tub and is fixedly connected with the pulsator shaft of the washing machine driving device.

[0078] The power component and the clutch component of the washing machine driving device are controlled to control the rotating speed and direction of the inner tub and the pulsator, so that the washing and dehydration working conditions are realized.

[0079] The washing machine of the embodiment can realize the double-power operation of the pulsator and the inner tub in the washing working condition through the washing machine driving device, enriches the washing water flow, and improves the washing effect. In the dehydration working condition, the inner tub and the pulsator are driven to rotate at the same speed and in the same direction through the clutch mechanism.

[0080] The embodiment also provides a control method of the washing machine, which comprises the following steps:

[0081] The clutch sleeve is controlled to move in the second direction, the clutch sleeve is disconnected from the first rotating output and the second rotating output, the rotating direction and the rotating speed of the first rotating output and the second rotating output of the power component are controlled respectively, the pulsator and the inner tub are driven to operate at the same / different rotating speed and / or the same / different rotating direction, and the washing working condition is realized.

[0082] The clutch sleeve is controlled to move in the first direction, the first rotating output and the second rotating output are connected into an integrated structure by the clutch sleeve, the first rotating output or the second rotating output of the power component is controlled to operate alone, the pulsator shaft and the inner tub shaft are driven to rotate synchronously, the pulsator and the inner tub are driven to rotate at the same speed and in the same direction, and the dehydration working condition is realized.

[0083] As an optional embodiment of the embodiment, in the control method of the washing machine, the washing machine performs the dehydration working condition:

[0084] The electromagnet of the washing machine driving device is controlled to be powered off, and the clutch sleeve moves in the first direction;

[0085] The inner rotor of the power component is controlled to rotate slowly until the meshing teeth of the clutch sleeve are engaged with the inner rotor and fixed, and the inner rotor stops rotating;

[0086] The outer rotor of the power component is controlled to rotate slowly until the meshing teeth of the clutch sleeve are engaged with the outer rotor and fixed, and the outer rotor stops rotating, and the inner rotor and the outer rotor are connected into an integrated structure by the clutch sleeve;

[0087] The inner rotor or the outer rotor of the power component is controlled to operate alone, the pulsator shaft and the inner tub shaft are driven to rotate synchronously, and the pulsator and the inner tub are driven to rotate at the same speed and in the same direction.

[0088] As an optional embodiment of the embodiment, in the control method of the washing machine, the washing machine performs the dehydration working condition:

[0089] The inner rotor and the outer rotor of the power component are controlled to rotate to a set position, and an inner rotor tooth groove on the inner rotor and an outer rotor tooth groove on the outer rotor are in a relative position;

[0090] The electromagnet of the washing machine driving device is controlled to be powered off, the clutch sleeve moves in a first direction, and the engagement teeth of the clutch sleeve can be sequentially inserted into the inner rotor tooth groove and the outer rotor tooth groove to be engaged and fixed, and the inner rotor and the outer rotor are connected into an integrated structure by the clutch sleeve.

[0091] The inner rotor or the outer rotor of the power component is controlled to operate alone, to drive the pulsator shaft and the inner tub shaft to synchronously rotate, and to drive the pulsator and the inner tub to rotate at the same speed and in the same direction.

[0092] The embodiment further provides a storage medium which stores a computer executable program, and the computer executable program is executed to realize the control method of the washing machine.

[0093] The storage medium in the embodiment can include a data signal which propagates in a baseband or as a part of a carrier wave, and carries readable program codes. The propagating data signal can adopt various forms, including but not limited to an electromagnetic signal, an optical signal or any suitable combination of the above. The readable storage medium can also be any readable medium other than the readable storage medium, which can send, propagate or transmit programs for use by or in combination with an instruction execution system, device or apparatus. The program codes included in the readable storage medium can be transmitted by any suitable medium, including but not limited to wireless, wired, optical cable, RF and the like, or any suitable combination of the above.

[0094] The embodiment further provides an electronic device which includes a processor and a memory, and the memory is used to store a computer executable program, and the computer program is executed by the processor to execute the control method of the washing machine.

[0095] The electronic device is in the form of a general computing device. The processor can be one or multiple and work cooperatively. The present application also does not exclude distributed processing, that is, the processor can be dispersed in different entity devices. The electronic device of the present application is not limited to a single entity, but can also be a sum of multiple entity devices.

[0096] The memory stores a computer executable program, which is usually machine readable code. The computer readable program can be executed by the processor to enable the electronic device to execute the method of the present application, or at least part of the steps in the method.

[0097] The memory includes volatile memory, such as random access memory (RAM) and / or cache memory, and non-volatile memory, such as read-only memory (ROM).

[0098] It should be understood that the electronic device of the present application can also include elements or components not shown in the above examples. For example, some electronic devices also include a display unit such as a display screen, and some electronic devices also include human-computer interaction elements such as a button or a keyboard. As long as the electronic device can execute a computer-readable program in the memory to implement the method or at least part of the steps of the method of the present application, it can be considered as an electronic device covered by the present application.

[0099] From the above description of the embodiments, those skilled in the art will readily understand that the present application can be implemented by hardware capable of executing a specific computer program, such as a system of the present application and electronic processing units, servers, clients, mobile phones, control units, processors, etc. contained in the system. The present application can also be implemented by computer software that executes the method of the present application, such as control software executed by a microprocessor, an electronic control unit, a client, a server, etc. It should be noted that the computer software that executes the method of the present application is not limited to being executed by one or a specific hardware entity, but can also be implemented in a distributed manner by non-specific hardware. For computer software, the software product can be stored in a computer-readable storage medium (which can be a CD-ROM, a U disk, a mobile hard disk, etc.), or can be distributed on a network, as long as it can make the electronic device execute the method according to the present application.

[0100] The above examples are only used to illustrate the present application and not to limit the technical solutions described in the present application. Although the present application has been described in detail with reference to the above embodiments, the present application is not limited to the above specific embodiments, and any modification or equivalent replacement of the present application; all technical solutions and improvements that do not deviate from the spirit and scope of the present application are covered by the scope of the claims of the present application.

Claims

1. A washing machine drive device, characterized in that, include: Impeller shaft; The inner barrel shaft is rotatably sleeved on the outer circumference of the impeller shaft; The power unit includes a first rotation output component and a second rotation output component that can be independently controlled, the first rotation output component being connected to the impeller shaft and the second rotation output component being connected to the inner barrel shaft; The clutch component includes a clutch sleeve sleeved on the outer periphery of the inner tub shaft, the clutch sleeve being clearance-fitted with the inner tub shaft, and the clutch sleeve being driven to reciprocate along the axial direction of the inner tub shaft. The clutch sleeve moves along the first direction, and the first and second rotary output components are connected by the clutch sleeve into an integral structure to achieve synchronous rotation. The clutch sleeve moves along the second direction opposite to the first direction, and the clutch sleeve disconnects the first and second rotary output components, allowing the first and second rotary output components to rotate independently. The power component includes a stator, the first rotation output component is an outer rotor disposed on the outer periphery of the stator, and the second rotation output component is an inner rotor disposed on the inner periphery of the stator; The impeller shaft passes through the central through hole of the inner rotor and is connected to the outer rotor, and the inner barrel shaft is fixedly connected to the central through hole of the inner rotor; The inner rotor is provided with an inner rotor engagement part for cooperating with the clutch sleeve, and the outer rotor is provided with an outer rotor engagement part for cooperating with the clutch sleeve. The clutch sleeve includes a sleeve body fitted on the outer periphery of the inner barrel shaft, meshing teeth provided on one side of the sleeve body, and a clutch sleeve steel plate provided on the other side of the sleeve body. The clutch component also includes an electromagnet provided near the clutch sleeve steel plate. The washing machine drive device includes a mounting component, the stator of the power component is fixedly mounted on the mounting component, the electromagnet is fixedly mounted on the mounting component, and a return spring is provided between the clutch sleeve and the mounting component; When the electromagnet is energized, the clutch sleeve steel plate on the clutch sleeve is attracted by the electromagnet and moves along the second direction. During the process of the clutch sleeve moving along the second direction until it is attracted to the electromagnet, the return spring is compressed. When the electromagnet is de-energized, the clutch sleeve moves along the first direction under the force of gravity and the elastic force of the return spring. The inner rotor includes an inner rotor support body, an inner rotor back yoke, and an inner rotor magnet. The inner side of the inner rotor support body has a central through hole that is fixedly connected to the inner barrel shaft. The inner rotor back yoke is fixed to the outer side of the outer peripheral wall of the inner rotor support body. The inner rotor magnet is installed on the outer peripheral side of the inner rotor back yoke. The inner rotor meshing part consists of multiple inner rotor tooth grooves arranged in a ring on the inner rotor support body, and the meshing teeth of the clutch sleeve can be inserted into the inner rotor tooth grooves for meshing and fixing. The outer rotor includes an outer rotor support body, an outer rotor back yoke, and an outer rotor magnet. The inner side of the outer rotor support body has a central through hole that is fixedly connected to the impeller shaft. The outer rotor back yoke is fixed to the inner side of the outer peripheral wall of the outer rotor support body. The outer rotor magnet is installed on the inner peripheral side of the outer rotor back yoke. The outer rotor meshing part consists of multiple outer rotor tooth grooves arranged in a ring on the outer rotor support. The outer rotor tooth grooves are arranged opposite to the inner rotor tooth grooves. The meshing teeth of the clutch sleeve can be inserted into the inner rotor tooth grooves and the outer rotor tooth grooves in sequence for meshing and fixing.

2. The washing machine drive device according to claim 1, characterized in that, The stator includes a stator core, an outer stator winding, and an inner stator winding. The stator core has outer stator teeth on one side and inner stator teeth on the other side. The outer stator winding is wound around the outer stator teeth to form an outer stator portion that interacts with the outer rotor. The inner stator winding is wound around the inner stator teeth to form an inner stator portion that interacts with the inner rotor. The outer stator winding is given a first drive signal, and the inner stator winding is given a second drive signal.

3. A washing machine having a washing machine drive device as described in any one of claims 1-2, characterized in that, include: The inner tub is fixedly connected to the inner tub shaft of the washing machine drive device; The impeller is located inside the inner tub and is fixedly connected to the impeller shaft of the washing machine drive device; By controlling the power components and clutch components of the washing machine drive unit, the rotation speed and direction of the inner tub and pulsator are controlled to achieve washing and spin-drying operations.

4. A control method for a washing machine as described in claim 3, characterized in that, include: The clutch sleeve is controlled to move in the second direction. The clutch sleeve is disconnected from the first and second rotary output components. The direction and speed of the first and second rotary output components of the power component are controlled respectively. The impeller and the inner tub are driven to operate at the same / different speeds and / or the same / different directions to achieve the washing condition. The clutch sleeve is controlled to move along a first direction. The first and second rotation output components are connected by the clutch sleeve into an integral structure. The first or second rotation output component of the power component is controlled to operate independently, driving the impeller shaft and the inner drum shaft to rotate synchronously, driving the impeller and the inner drum to rotate at the same speed and in the same direction, thereby achieving the dehydration condition.

5. The control method for a washing machine according to claim 4, characterized in that, The washing machine is performing a spin-drying operation: When the electromagnet controlling the washing machine drive device is de-energized, the clutch sleeve moves along the first direction; The inner rotor of the power component is controlled to rotate slowly until the meshing teeth of the clutch sleeve engage and fix with the inner rotor, at which point the inner rotor stops rotating. The outer rotor of the power component is controlled to rotate slowly until the meshing teeth of the clutch sleeve engage and fix with the outer rotor, at which point the outer rotor stops rotating, and the inner rotor and outer rotor are connected into a single structure by the clutch sleeve. The inner or outer rotor of the power component is controlled to operate independently, driving the impeller shaft and the inner drum shaft to rotate synchronously, thus driving the impeller and the inner drum to rotate at the same speed and in the same direction.

6. The control method for a washing machine according to claim 4, characterized in that, The washing machine is performing a spin-drying operation: The inner rotor and outer rotor of the power component are controlled to rotate to a set position, and the inner rotor tooth groove on the inner rotor and the outer rotor tooth groove on the outer rotor are in a relative position. When the electromagnet controlling the washing machine drive device is de-energized, the clutch sleeve moves along the first direction, and the meshing teeth of the clutch sleeve can be sequentially inserted into the inner rotor tooth groove and the outer rotor tooth groove for meshing and fixing. The inner rotor and the outer rotor are connected into an integral structure by the clutch sleeve. The inner or outer rotor of the power component is controlled to operate independently, driving the impeller shaft and the inner drum shaft to rotate synchronously, thus driving the impeller and the inner drum to rotate at the same speed and in the same direction.

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