WO2014101769A1

WO2014101769A1 - Washing machine and method for driving washing machine

Info

Publication number: WO2014101769A1
Application number: PCT/CN2013/090434
Authority: WO
Inventors: 尹翔; 劳春峰
Original assignee: 海尔集团技术研发中心; 海尔集团公司
Priority date: 2012-12-29
Filing date: 2013-12-25
Publication date: 2014-07-03
Also published as: CN103911815A; CN103911809A; CN103911809B; CN103911795A; CN103911815B; CN103911795B

Abstract

The present invention provides a washing machine and a method for driving the washing machine. The washing machine comprises an inner drum, an outer drum, an impeller, and an impeller motor. A primary coil is disposed along the circumference of the outer drum, and correspondingly, a secondary induction portion is disposed at the inner drum. When the primary coil is powered on, the primary coil generates a magnetic acting force in collaboration with the secondary induction portion to drive the inner drum to rotate. The impeller motor drives the impeller and the inner drum to rotate in a same or opposite direction. The outer drum of the washing machine is used as a primary level of the induction motor, and the inner drum is as a secondary level of the induction motor. During a process of being powered on, the primary level generates a magnetic acting force in collaboration with the secondary level to drive the inner drum to rotate, and the impeller motor drives the impeller to rotate to achieve the dual-power, thereby effectively increasing the intensity of the water flow and improving the washing cleanliness. In addition, the inner drum and the impeller are separately controlled, and therefore, it is unnecessary to dispose a clutch, thereby effectively solve the problem of the whole space.

Description

Washing machine and washing machine driving method

The invention relates to a washing machine and a washing machine driving method. Background technique

The traditional washing machine structure is composed of an inner cylinder, an outer cylinder, a pulsator, a transmission system, a control system, etc. When the laundry is in operation, the inner cylinder does not rotate, and the pulsator rotates in the forward and reverse directions, and the water in the inner cylinder and the clothes are rotated to realize washing. However, such a washing method has the following problems: Low washing degree, weak water flow intensity, and entanglement of clothes.

Say

Summary of the invention

In order to solve the above problems, the present invention provides a washing machine and a washing control method, which can effectively enhance the intensity of water flow, and provide a book

High cleanliness.

A washing machine includes an inner cylinder, an outer cylinder, a pulsator and a pulsator motor, wherein the outer cylinder is provided with a primary coil along a circumferential direction thereof, and the inner cylinder is correspondingly provided with a secondary sensing portion, and the primary coil is energized A magnetic force is generated to drive the inner cylinder to rotate with the secondary sensing portion, and the pulsator motor drives the pulsator to rotate in the same direction or in the opposite direction as the inner cylinder.

The present invention also provides a washing machine driving method, comprising: driving a rotation of an inner cylinder by a magnetic force when energized, and driving the pulsator to rotate in the same direction or opposite direction with the inner cylinder by a pulsator motor. The washing machine and the washing machine driving method provided by the invention use the outer cylinder of the washing machine as the primary of the induction motor, and the inner cylinder serves as the secondary of the induction motor, and the primary generates a magnetic force to drive the inner cylinder to rotate when energized, and the pulsator motor drives The pulsator rotates to achieve dual power, which can effectively enhance the water flow intensity and improve the cleaning degree. In addition, the inner cylinder and the pulsator are separately controlled, and no clutch is required, thereby effectively saving the space of the whole machine. DRAWINGS

FIG. 1 is a schematic structural view of an embodiment of a washing machine provided by the present invention.

Figure 2 is a cross-sectional view taken along line A-A of Figure 1. FIG. 3 is a schematic structural diagram of a primary coil in a washing machine according to an embodiment of the present invention.

4 is a schematic structural view of a magnet in a washing machine according to an embodiment of the present invention. detailed description

Embodiments of the present invention will now be described with reference to the accompanying drawings. The elements and features described in one of the figures or one embodiment of the invention may be combined with elements and features illustrated in one or more other figures or embodiments. It should be noted that, for the sake of clarity, representations and descriptions of components and processes known to those of ordinary skill in the art that are not relevant to the present invention are omitted from the drawings and the description. Washing machine embodiment:

As shown in FIG. 1, a washing machine includes: an outer cylinder 1, an inner cylinder 2, a pulsator 3, and a pulsator motor 5. The outer cylinder 1 is provided with a primary coil along a circumferential direction thereof, and the inner cylinder 2 is provided with a secondary induction. When the primary coil is energized, a magnetic force is generated from the secondary sensing portion to drive the inner cylinder 2 to rotate, and the pulsator motor 5 drives the pulsator 3 to rotate in the same direction or in the opposite direction as the inner cylinder 2. As shown in FIG. 2, the primary coil includes a first primary coil 8 and a second primary coil 9, and the first primary coil 8 and the second primary coil 9 are symmetrically disposed on the outer cylinder wall of the outer cylinder 1, the first primary coil 8 and The second primary coil 9 may be disposed on the inner or outer wall of the outer cylinder 1, preferably on the inner wall of the outer cylinder 1. The secondary sensing portion is preferably an annular magnetically conductive portion 10. Say

The arcs of the first primary coil 8 and the second primary coil 9 coincide with the arc of the inner wall of the outer cylinder 1, and are fixedly disposed on the inner wall of the outer cylinder 1, and the first primary coil 8 and the second primary coil 9 each include a plurality of outer cylinders 1 Protruding yoke portion in the radial direction, magnetic book

A coil is wound around the periphery of the yoke. Taking the first primary coil 8 as an example, as shown in FIG. 3, the first primary coil 8 includes a plurality of yoke portions 81 that are convex in the radial direction of the outer cylinder 1, and the yoke portion 81 A coil is wound around the periphery, and the second primary coil 9 is identical in structure to the first primary coil 8. The primary coil itself is not magnetic, so it does not generate an induced magnetic field in the event of a power failure. When the coil is energized, an induced magnetic field is generated around it.

The annular magnetically permeable portion 10 provided on the inner cylinder 2 itself may be made of a magnetic material, such as a permanent magnetic material, so that a magnetic field is generated around it, and in the case where the coil is energized, the first primary coil 8 and the second primary coil 9 are generated. The induced magnetic field interacts with the magnetic field generated by the annular magnetically permeable portion 10 to generate a magnetic force to drive the inner cylinder to rotate.

The electromagnetic force is an attractive or repulsive force between the first primary coil 8 and the second primary coil 9 and the annular magnetic conductive portion 10, and the inner cylinder is rotated by the attraction or repulsive force. The power supply device supplies power to the coil, and the direction of the induced magnetic field can be changed by changing the direction of the energization current, thereby controlling the attraction or repulsive force between the first primary coil 8 and the second primary coil 9 and the annular magnetic conductive portion 10. The primary coil and the annular magnetic conductive portion 10 are respectively disposed at the open ends of the outer cylinder 1 and the inner cylinder 2, on the one hand, because the top is in contact with water less, the annular magnetic conductive portion 10 is effectively protected, and on the other hand, the conventional wave The inner cylinder of the washing machine is driven by the motor at the bottom. During the high-speed drying process, the top of the inner cylinder is more swaying. The primary coil and the annular magnetic guide are arranged at the top, which can solve this problem well.

The annular magnetic conductive portion 10 can be made of a magnetically permeable material, preferably made of a composite material of a back iron and aluminum. The induced magnetic field generated when the coil of the stator is energized interacts with the magnetic field generated by the annular magnetic conductive portion 10 to generate a magnetic force. The inner cylinder 2 is rotated, which can effectively improve the magnetic circuit and reduce energy loss.

As shown in Fig. 1, as an alternative embodiment, the bottom of the inner cylinder 2 is provided with a connecting shaft 11 for supporting the inner cylinder 2, and the connecting shaft 11 has a hollow structure. The magnetically repulsive magnets 4 are respectively disposed in the connecting shaft 11 and in the boss 20 (or hollow shaft) connected to the outer cylinder 1. The inner cylinder 2 is suspended in the outer cylinder 1 by the repulsive force between the magnets 4, and the inner cylinder 2 is not in contact with the outer cylinder 1 during rotation, thereby avoiding mechanical friction between the inner cylinder 2 and the outer cylinder 1, thereby effectively reducing the whole The noise generated when the machine is running. As an alternative embodiment, as shown in FIG. 4, the washing machine provided in this embodiment further includes a magnetic bearing. The bottom of the inner cylinder is provided with a connecting shaft 11 at the center of the bottom of the inner cylinder. The connecting shaft 11 passes through the center of the bottom of the outer cylinder 1 and is disposed in the outer cylinder. 1 The magnetic bearing connection below.

The inner cylinder 2, the outer cylinder 1 and the magnetic magnetic bearing are coaxially arranged. The magnet comprises: a first permanent magnet ring 41, a second permanent magnetic ring 42, the magnetic bearing comprising an outer sleeve 44 disposed at the bottom of the outer cylinder 1; the first permanent magnet 41 is disposed at the bottom of the outer sleeve 44, and the second permanent magnet 42 is fixed On the connecting shaft 11; the second permanent magnet 42 is suspended above the first permanent magnet 41 by the repulsive force between the first permanent magnet 41, and the second permanent magnet 42 is connected via the connecting shaft 11

The movable inner cylinder 2 is suspended in the outer cylinder 1. In addition, the magnetic bearing provided in this embodiment further includes: an inner sleeve 43 integrally formed with the connecting shaft 5, and the second permanent magnet 42 is fixed in the inner sleeve 43. The upper end of the outer sleeve 44 is open, and the open end is fixedly connected to the outer end of the outer end of the outer tube 1. The bottom of the outer sleeve 44 is provided with a first permanent magnet 41. The lower end of the inner sleeve 43 is open, and the connecting shaft 5 passes through the upper end of the inner sleeve 43. The center is integrally formed with the inner sleeve 43. The second permanent magnet 42 is fixed in the inner sleeve 43. The connecting shaft 5 passes through the center of the second permanent magnet 42 and is fixedly connected with the second permanent magnet 42. The magnet 41 has the same polarity as the opposite surface of the second permanent magnet 42 . According to the principle of the same polarity repulsive, a repulsive force is generated between the first permanent magnet 41 and the second permanent magnet 42 to suspend the second permanent magnet 42 in the first permanent Above the magnet 41, since the second permanent magnet 42 is fixedly coupled to the connecting shaft 5 on the inner cylinder 2, the second permanent magnet 42 can drive the inner cylinder to be suspended in the outer cylinder 1.

The washing machine provided in this embodiment further includes a pulsator shaft 14, one end of the pulsator shaft 14 passes through the hollow portion of the connecting shaft 11 and the bottom of the inner cylinder 2 is connected with the pulsator 3, and the other end of the pulsator shaft 14 passes through the bottom center of the outer sleeve 44. Connected to the pulsator motor 5, the power supply device supplies power to the pulsator motor 5 to drive the pulsator 3 to rotate, so that the pulsator 3 and the inner cylinder 2 rotate in opposite or opposite directions.

As an alternative embodiment, the pulsator shaft 14 is in contact with the outer sleeve 44, that is, at the through hole of the outer sleeve 44, and a ball bearing 15 is provided to reduce the frictional force during power transmission. As a preferred embodiment, as shown in FIG. 2, the inner wall of the outer cylinder 1 is provided with a guide coil 16 in a direction parallel to its axis, and the guide coil 16 is used to maintain the concentricity of the inner cylinder 2 and the outer cylinder 1, and On the one hand, it is also used to ensure an air gap between the stator and the annular magnetically permeable portion 10. As an alternative embodiment, the frequency converter is used to power the pulsator motor and the primary coil. In the washing machine provided by the embodiment, the outer cylinder of the washing machine is used as the primary of the induction motor, and the inner cylinder is used as the secondary of the induction motor. The primary generates a magnetic force to drive the inner cylinder to rotate when the primary is energized, and the pulsator motor drives the pulsator to rotate. Realize dual power, It can effectively strengthen the water flow intensity and improve the cleanliness. In addition, the inner cylinder and the pulsator are separately controlled, and no clutch is needed to effectively solve the space of the whole machine.

Embodiment of the washing machine driving method: The washing machine driving method provided by the embodiment includes: driving, when the power is on, driving the inner cylinder to rotate by a magnetic force, and driving the pulsator to rotate in the same direction or in the opposite direction by the pulsator motor. The outer cylinder is provided with a primary coil along its circumferential direction, and the inner cylinder is provided with a secondary sensing portion correspondingly. When the primary coil is energized, a magnetic force is generated from the secondary sensing portion to drive the inner cylinder to rotate. The outer cylinder and the inner cylinder respectively constitute the primary and secondary of the induction motor.

Specifically, the method further includes: collecting washing configuration information, generating a control signal according to the washing configuration information, and controlling the rotation of the control pulsator and/or the inner cylinder according to the control signal. Book

The user can select the washing method according to the material and type of the clothes. The selection information is the washing configuration information, the different washing configuration information, corresponding to different control instruction sets, and the corresponding control command is found according to the washing configuration information. The set is the generated control signal. In addition, the washing configuration information may also be a mode of washing, rinsing, drying, etc., that is, the rotation direction or the rotation speed of the pulsator and the inner cylinder may be separately controlled according to the washing, rinsing or drying modes.

As an optional implementation manner, the control signal includes a first control signal, and the first control signal controls the inner cylinder to rotate clockwise or counterclockwise. In this mode, the pulsator is stationary, and only the inner cylinder rotates, and the cymbal force is small. Suitable for washing light clothes.

As an optional implementation manner, the control signal includes a second control signal, and the control signal controls the pulsator to rotate clockwise or counterclockwise. In this mode, the inner cylinder is stationary, only the pulsator rotates, and the cymbal force is small, suitable for washing. Lightweight clothing. As an optional implementation manner, the control signal includes a third control signal, and the third control signal controls the pulsator and the inner cylinder to rotate at the same speed and in the opposite direction. As an optional implementation manner, the control signal includes a fourth control signal, and the fourth control signal controls the pulsator and the inner cylinder to rotate in the same direction at different speeds. As an alternative embodiment, the control signal includes a fifth control signal that controls the pulsator and the motor to rotate in opposite directions at different speeds. As an optional implementation manner, the control signal includes a sixth control signal, the sixth control signal controls the pulsator to continuously rotate and the inner cylinder intermittently rotates, and the pulsator and the inner cylinder rotate in the same direction. As an optional implementation manner, the control signal includes a seventh control signal, the seventh control signal controls the pulsator to continuously rotate and the inner cylinder intermittently rotates, and the pulsator and the inner cylinder rotate in opposite directions. As an optional implementation manner, the control signal includes an eighth control signal, and the eighth control signal controls the continuous rotation of the inner cylinder The pulsator and the pulsator rotate intermittently, and the pulsator and the inner cylinder rotate in the same direction. As an optional implementation manner, the control signal includes a ninth control signal, and the ninth control signal controls the inner cylinder to continuously rotate, the pulsator intermittently rotates, and the pulsator and the inner cylinder are reversely rotated.

The frequency converter is used to power the primary coil and the pulsator motor. By changing the frequency and direction of the energizing current, the steering speed of the inner cylinder and/or the pulsator can be controlled. In the washing machine driving method provided by the embodiment, the outer cylinder of the washing machine is used as the primary of the induction motor, and the inner cylinder is used as the secondary of the induction motor. When the primary is energized, the secondary magnetic force is driven to drive the inner cylinder to rotate, and the pulsator motor drives the wave. The rotation of the wheel realizes dual power. During the rotation of the inner cylinder and the pulsator, it is said to be a powerful and powerful tumbling water flow, and the clothes are patted from all directions to achieve all-round washing of the clothes and improve the washing degree of the clothes. Although the invention and its advantages have been described in detail, it should be understood that the invention

Various changes, substitutions and alterations are possible in the case of the spirit and scope of the invention. Further, the scope of the present application is not limited to the specific embodiments of the processes, apparatuses, means, methods and steps described in the specification. It will be readily apparent to those skilled in the art from this disclosure that the present invention can be used in accordance with the present invention to perform substantially the same functions as the corresponding embodiments described herein or to obtain substantially the same results as present and future The process, equipment, means, method or step being developed. Therefore, the appended claims are intended to cover such a process, apparatus, means, methods, or steps.

Claims

Claim

A washing machine, comprising: an inner cylinder, an outer cylinder, a pulsator and a pulsator motor, wherein the outer cylinder is provided with a primary coil along a circumferential direction thereof, and the inner cylinder is correspondingly provided with a secondary sensing portion. The primary coil generates a magnetic force with the secondary sensing portion to drive the inner cylinder to rotate when energized, and the pulsator motor drives the pulsator to rotate in the same direction or in the opposite direction as the inner cylinder.

2. The washing machine according to claim 1, wherein the primary coil includes a first primary coil and a second primary coil, and the axes of the first primary coil and the second primary coil are symmetrically disposed on the outer cylinder wall.

The washing machine according to claim 1, wherein the primary coil and the secondary sensing portion are respectively disposed at the open ends of the outer cylinder and the inner cylinder.

The washing machine according to any one of claims 1 to 3, wherein the secondary sensing portion is an annular magnetic conducting portion.

The washing machine according to claim 1, wherein the washing machine further comprises a magnet replied by a magnetic force disposed in cooperation with the inner cylinder and the outer cylinder, wherein the inner cylinder is suspended by the repulsive force between the magnets Inside the outer cylinder.

The washing machine according to claim 5, wherein a bottom of the inner cylinder is provided with a hollow connecting shaft for supporting the inner cylinder.

The washing machine according to claim 6, wherein the magnetically repulsive magnets are respectively disposed in the hollow connecting shaft and in a sleeve or a hollow shaft connected to the outer cylinder.

The washing machine according to claim 6, further comprising a magnetic bearing, the magnet being disposed in the magnetic bearing.

The washing machine according to claim 8, wherein the magnet comprises: a first permanent magnet ring and a second permanent magnet ring, wherein the magnetic bearing comprises an outer sleeve disposed at a bottom of the outer cylinder; a permanent magnet is disposed at a bottom of the outer sleeve, the second permanent magnet is fixedly connected to the connecting shaft; and the second permanent magnet is suspended above the first permanent magnet by a repulsive force between the second permanent magnet and the first permanent magnet. The second permanent magnet drives the inner cylinder to be suspended in the outer cylinder via the connecting shaft.

The washing machine according to claim 9, wherein the magnetic bearing further comprises: an inner sleeve integrally formed with the connecting shaft, wherein the second permanent magnet ring is fixed in the inner sleeve.

The washing machine according to claim 6, further comprising a pulsator shaft, one end of the pulsator shaft is connected to the pulsator through a hollow portion of the connecting shaft, and the other end of the pulsator shaft is worn The outer sleeve is connected to the pulsator motor.

The washing machine according to claim 11, wherein a ball bearing is disposed at a position where the pulsator shaft is in contact with the outer sleeve.

The washing machine according to any one of claims 1 to 11, characterized in that the top of the outer cylinder is symmetrically disposed with a guide coil for maintaining the concentricity of the inner cylinder and the outer cylinder.

14. A washing machine driving method, comprising: When the claim is energized, the inner cylinder is driven to rotate by a magnetic force, and the pulsator is driven by the pulsator motor to rotate in the same direction or in the opposite direction as the inner cylinder.

The washing machine driving method according to claim 14, wherein the outer cylinder is provided with a primary coil along a circumferential direction thereof, and the inner cylinder is correspondingly provided with a secondary sensing portion, and the primary coil is energized with the The secondary sensing portion generates a magnetic force to drive the inner cylinder to rotate.

The washing machine driving method according to claim 15, further comprising: generating a control signal according to the washing configuration information, and controlling the pulsator and/or the inner cylinder to rotate according to the control signal.

The washing machine driving method according to claim 16, wherein the control signal comprises a first control signal, and the first control signal controls the inner cylinder to rotate clockwise or counterclockwise; or

The control signal includes a second control signal, and the second control signal controls the pulsator to rotate clockwise or counterclockwise; or

The control signal includes a third control signal, and the third control signal controls the pulsator and the inner cylinder to rotate at the same speed and in the opposite direction; or

The control signal includes a fourth control signal, and the fourth control signal controls the pulsator and the inner cylinder to rotate in the same direction at different speeds; or

The control signal includes a fifth control signal, and the fifth control signal controls the pulsator and the inner cylinder to rotate in opposite directions at different speeds; or

The control signal includes a sixth control signal, the sixth control signal controls the pulsator to continuously rotate, and the inner cylinder intermittently rotates, and the pulsator and the inner cylinder rotate in the same direction; or

The control signal includes a seventh control signal, the seventh control signal controls the pulsator to continuously rotate, and the inner cylinder intermittently rotates, and the pulsator and the inner cylinder rotate in opposite directions; or

The control signal includes an eighth control signal, the eighth control signal controls the continuous rotation of the inner cylinder, the intermittent rotation of the pulsator, and the pulsator and the inner cylinder rotate in the same direction; or

The control signal includes a ninth control signal, and the ninth control signal controls the inner cylinder to continuously rotate, the pulsator intermittently rotates, and the pulsator and the inner cylinder rotate in opposite directions.