A magnetic levitation washing machine

Abstract

The present invention discloses a magnetic levitation washing machine, comprising a housing and a washing drum disposed within the housing. A magnetic levitation motor is disposed at the bottom of the housing, and a magnetic induction unit is correspondingly disposed in the washing drum. When energized, the magnetic levitation motor interacts with the magnetic induction unit to generate a levitation force that elevates the washing drum and / or a driving force that rotates the washing drum. In the present invention, when energized, the magnetic levitation motor interacts with the magnetic induction unit to elevate and / or rotate the washing drum. This effectively reduces noise generated by vibration during the washing drum's rotation, ensures operational stability, and enhances the user experience. Furthermore, the number of shock-absorbing components is reduced, effectively reducing the weight of the washing machine and lowering production costs.

Description

Technical Field

[0001] The present invention belongs to the technical field of washing machines, and in particular relates to a magnetic suspension washing machine. Background Art

[0002] A washing machine is a household appliance that removes various contaminants from clothing by agitating and rotating water, detergent, and clothing, creating friction and impact on the laundry. In traditional washing machines, the motor continuously rotates the washing drum, which in turn drives water to impact the laundry inside. Due to direct contact between the motor and the drum, friction is inevitable. Especially during high-speed rotation, this friction causes the entire machine to vibrate, increasing energy consumption and generating noise that impacts the user experience.

[0003] For example, a Chinese patent discloses an intelligent washing machine, which includes a shell, a stirring wheel, a suspension drum, a motor, a gear set, a magnetic suspension device and a controller. The suspension drum includes an outer drum and an inner drum. The magnetic suspension device includes an electromagnet and a fixed magnet. The electromagnet is fixedly connected to the shell, and the fixed magnet is fixedly connected to the suspension drum. When in use, the motor drives the suspension drum to rotate in the opposite direction of the stirring wheel through the gear set. The clothes in the inner drum rotate along with the stirring wheel, and the clothes are washed by the water flow in the opposite direction. When the controller controls the motor to drive the stirring wheel to rotate, the controller controls the electromagnet to be energized, and the electromagnet generates the same polarity as the fixed magnet. Under the action of the repulsive force of the same polarity between the electromagnet and the fixed magnet, the suspension drum rises and suspends along the motor shaft, reducing the friction of the suspension drum rotation. However, there is still direct contact between the suspension drum and the motor, and the structure of the washing machine is complicated, which affects the effective use space of the washing drum.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a magnetic levitation washing machine to achieve the purpose of reducing the vibration noise generated by the washing drum during operation.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A magnetic levitation washing machine comprises a housing and a washing drum arranged in the housing. A magnetic levitation motor is arranged at the bottom of the housing, and a magnetic induction part is correspondingly arranged at the washing drum. When energized, the magnetic levitation motor generates a levitation force between the magnetic induction part and the washing drum to lift the washing drum and / or a driving force to rotate the washing drum.

[0008] In the above scheme, the magnetic levitation motor interacts with the magnetic induction part when energized, causing the washing drum to rise and / or rotate, which can effectively reduce the noise generated by vibration during the rotation of the washing drum, ensure the stability of the washing machine operation, and enhance the user experience. In addition, it can also reduce the number of shock-absorbing components, effectively reduce the weight of the washing machine, and reduce production costs.

[0009] Furthermore, the magnetic levitation motor includes a magnetic rotating body and a magnetic fixed body. When energized, the magnetic rotating body generates a levitation force with the magnetic induction part to lift the washing tub. When energized, the magnetic fixed body generates a driving force with the magnetic induction part to rotate the washing tub.

[0010] In the above scheme, there is no direct contact between the magnetic levitation motor and the washing drum. By passing a direct current through the magnetic rotating body, the magnetic poles of the magnetic rotating body and the magnetic induction part on the opposite sides are made identical, thereby generating a repulsive force between the magnetic rotating body and the magnetic induction part, which is the levitation force that lifts the washing drum; and / or by passing an alternating current through the magnetic fixed body, a changing magnetic field is formed, thereby generating a magnetic force between the magnetic fixed body and the magnetic induction part, which is the driving force for the rotation of the washing drum. The washing drum rotates in the circumferential direction, and there is no friction between the motor and the washing drum, thereby reducing the vibration noise generated during the operation of the washing drum.

[0011] Furthermore, the washing tub is provided with a flange fixedly connected to the bottom of the washing tub, and the flange is made of a magnetically friendly material;

[0012] When power is supplied to the magnetic rotating body, a suspension force is generated between the magnetic rotating body and the flange to lift the flange, and when power is supplied to the magnetic fixed body, a driving force is generated between the magnetic fixed body and the flange to rotate the flange.

[0013] In the above scheme, the magnetically-affinity flange is fixedly connected to the bottom of the washing drum to form an integrated structure, so that when power is applied, the magnetic rotating body and / or the magnetic fixed body generates an electromagnetic force for adjusting the suspension of the washing drum and a magnetic force for driving the washing drum to rotate between the flange, thereby realizing the separation between the washing drum and the magnetic levitation motor.

[0014] Furthermore, the axis of the flange coincides with the axis of the washing tub, and the flange, the magnetic rotating body and the magnetic fixed body are all arranged in the horizontal direction.

[0015] In the above solution, the axis of the flange coincides with the axis of the washing drum, ensuring that the vertical upward suspension force and / or circumferential driving force on the washing drum remains balanced, avoiding local uneven force that may cause the washing drum to lose control during operation, especially during high-speed rotation, which may cause danger.

[0016] Furthermore, it also includes a water cylinder suspended above the magnetic levitation motor, a washing cylinder is arranged in the water cylinder, and a limiting device for adjusting the rising position and / or rotation position of the washing cylinder is arranged at the bottom of the washing cylinder. The washing cylinder is connected to the water cylinder via the limiting device.

[0017] In the above scheme, there is no direct contact between the water drum, the washing drum and the magnetic levitation motor, which reduces the vibration noise during the operation of the washing machine. The washing drum is connected to the water drum via a limiting device, which ensures that the washing drum operates within a certain height and width space range, thereby improving the stability of the washing drum in the magnetic levitation state.

[0018] Furthermore, the limiting device includes a limiting shaft extending vertically downward and a limiting seat fixed on the limiting shaft. The limiting shaft passes through the drain openings opened at the bottom of the washing tub and the bottom of the water tub in sequence. The limiting seat is horizontally arranged above the bottom of the washing tub.

[0019] In the above scheme, the limiting shaft can limit the washing drum to rise or fall in the vertical direction, while ensuring that the washing drum rotates circumferentially around the axis of the limiting shaft, limiting the movement trajectory of the washing drum in the horizontal direction, and the limiting seat can limit the rising position of the washing drum, thereby ensuring the stability of the washing drum during operation through the limiting device.

[0020] Furthermore, the washing tub is provided with a flange fixedly connected to the bottom of the washing tub, the limiting shaft passes through the bottom of the washing tub, the flange and the drain openings at the bottom of the water storage tub in sequence, and the limiting seat is horizontally arranged above the bottom of the washing tub.

[0021] In the above scheme, when power is turned on, the magnetic levitation motor drives the magnetically friendly flange to rise in the vertical direction and / or rotate in the circumferential direction, and the limit shaft passes through the washing drum, the flange and the water drum in sequence to ensure that the washing drum rises in the vertical direction driven by the flange, and the limit seat is horizontally arranged above the bottom of the washing drum to ensure that the washing drum rotates in the circumferential direction driven by the flange.

[0022] Furthermore, the radial dimension of the limiting shaft is smaller than the radial dimension of the drain openings opened at the bottom of the washing tub, on the flange and at the bottom of the water storage tub, and the radial dimension of the limiting seat is larger than the radial dimension of the through hole opened at the bottom of the washing tub.

[0023] In the above scheme, the radial dimension of the limiting shaft is smaller than the radial dimension of the drain outlet, ensuring that the washing water can flow out quickly through the drain outlet during the drainage stage, and the radial dimension of the limiting seat is larger than the radial dimension of the through hole opened at the bottom of the washing drum, ensuring that the limiting seat opens or closes the drain outlet accordingly to prevent the washing water from leaking during the non-drainage stage and affecting the washing and care effect of the clothes.

[0024] Furthermore, a drain valve is provided at the drain outlet at the bottom of the water storage cylinder, and the drain valve includes a valve body, which has a water inlet, a water outlet and a drainage channel extending from the water inlet to the water outlet. The water outlet of the valve body is connected to the drainage pipe, and the limiting shaft passes through the water inlet of the valve body and is placed in the drainage channel.

[0025] In the above scheme, by controlling the magnitude of the DC current, the repulsive force between the magnetic rotating body and the magnetic induction part is adjusted, and then the rising position of the washing drum is controlled, so that the limit seat opens or closes the drain outlet opened at the bottom of the washing drum accordingly, and controls the washing water to flow into the drainage channel through the interval between the limit shaft and the drain outlet, and finally be discharged through the drainage pipe.

[0026] Furthermore, a connecting piece for connecting to the side wall of the box body is provided on the water container.

[0027] In the above scheme, the water cylinder and the side wall of the box are connected by a connecting piece, so that the water cylinder is suspended above the magnetic levitation motor to avoid direct contact between the magnetic levitation motor and the water cylinder, especially during the operation of the magnetic levitation motor, vibration noise is generated due to friction between the magnetic levitation motor and the water cylinder.

[0028] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0029] 1. In the present invention, the magnetic levitation motor interacts with the magnetic induction part when energized, causing the washing drum to rise and / or rotate, which can effectively reduce the noise generated by vibration during the rotation of the washing drum, ensure the stability of the washing machine operation, and enhance the user experience.

[0030] 2. In the present invention, when power is applied, a levitation force and / or a rotational driving force for lifting the washing tub is generated between the magnetic rotating body and the magnetic fixed body and the flange. Compared with the technical solution in the prior art in which the electromagnet is fixedly connected to the housing and the fixed magnet is fixedly connected to the levitation tub, the magnetic levitation washing machine in the present invention has a simpler structure, reduces the number of shock-absorbing components, effectively reduces the weight of the washing machine, and reduces production costs.

[0031] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0033] Figure 1It is a structural schematic diagram of a magnetic levitation washing machine in an embodiment of the present invention.

[0034] In the figure: 1. Box body; 2. Washing drum; 3. Water drum; 4. Flange; 5. Magnetic levitation motor; 6. Limit device; 61. Limit shaft; 62. Limit seat; 7. Drain valve; 8. Drain pipe; 9. Connector; 10. Motor bracket; 11. Impeller; 12. Positioning ring.

[0035] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0039] Example 1

[0040] like Figure 1 As shown, an embodiment of the present invention provides a magnetic levitation washing machine, including a housing 1 and a washing drum 2 arranged in the housing 1, a magnetic levitation motor 5 is provided at the bottom of the housing 1, and a magnetic induction part is correspondingly provided at the washing drum 2. When powered on, the magnetic levitation motor 5 generates a levitation force between the magnetic induction part to lift the washing drum 2 and / or a driving force to rotate the washing drum 2.

[0041] In this embodiment, the magnetic levitation motor 5 interacts with the magnetic induction part when energized, causing the washing drum 2 to rise and / or rotate, which can effectively reduce the noise generated by vibration of the washing drum 2 during rotation, ensure the stability of the washing machine operation, and enhance the user experience.

[0042] Compared with the technical solution in the prior art in which the electromagnet is fixedly connected to the shell and the fixed magnet is fixedly connected to the suspension barrel, the magnetic levitation washing machine in the present invention has a simpler structure, reduces the number of shock-absorbing components, effectively reduces the weight of the washing machine, and reduces production costs.

[0043] like Figure 1 As shown, in this embodiment, the washing tub 2 is arranged above the magnetic levitation motor 5, and a safety gap is provided between the bottom of the washing tub 2 and the magnetic levitation motor 5, so that when the washing machine is in a non-working state, the washing tub 2 is suspended above the magnetic levitation motor 5, thereby preventing the washing tub 2 from rapidly falling under the action of its own gravity and colliding with the magnetic levitation motor 5 when the magnetic levitation motor 5 stops being powered.

[0044] like Figure 1 As shown, in this embodiment, the magnetic levitation motor 5 includes a magnetic rotating body and a magnetic fixed body. When energized, the magnetic rotating body generates a levitation force with the magnetic induction part to lift the washing tub 2, and when energized, the magnetic fixed body generates a driving force with the magnetic induction part to rotate the washing tub 2.

[0045] In this embodiment, a direct current is passed through the magnetic rotating body so that the magnetic poles of the magnetic rotating body and the magnetic induction part facing each other are aligned, thereby generating a repulsive force between the magnetic rotating body and the magnetic induction part, which is a levitation force that causes the washing tub 2 to rise; and / or an alternating current is passed through the magnetic fixed body to form a changing magnetic field, thereby generating a magnetic force between the magnetic fixed body and the magnetic induction part, which is a driving force for the rotation of the washing tub 2. The washing tub 2 rotates circumferentially, and there is no friction between the motor and the washing tub 2, thereby reducing the vibration noise generated during the operation of the washing tub 2.

[0046] like Figure 1 As shown, in this embodiment, a flange 4 fixedly connected to the bottom of the washing tub 2 is provided on the washing tub 2, and the material of the flange 4 is a magnetic-affinity material; when power is applied, the magnetic rotating body generates a suspension force between the flange 4 and the magnetic fixed body to cause the flange 4 to rise, and when power is applied, the magnetic fixed body generates a driving force between the flange 4 and the magnetic fixed body to cause the flange 4 to rotate.

[0047] In this embodiment, the material of the flange 4 is a magnetically-friendly material including one or more metals of iron, nickel, and cobalt. As long as the material used for the flange 4 can be attracted by a magnet, it is within the protection scope of this solution.

[0048] In this embodiment, the magnetically-affinity flange 4 is fixedly connected to the bottom of the washing tub 2 to form an integrated structure, so that a suspension magnetic force for adjusting the suspension of the washing tub 2 is generated between the magnetic rotating body and the flange 4, and / or a driving force for driving the washing tub 2 to rotate is generated between the magnetic fixed body and the flange 4 when power is applied, so that the washing tub 2 rises in the vertical direction under the action of the suspension force and simultaneously moves at high speed in the circumferential direction under the action of the driving force.

[0049] like Figure 1 As shown, in this embodiment, the axis of the flange 4 coincides with the axis of the washing tub 2, and the flange 4, the magnetic rotating body and the magnetic fixed body are all arranged in the horizontal direction.

[0050] In this embodiment, the axis of the flange 4 coincides with the axis of the washing drum 2, ensuring that the washing drum 2 maintains a balanced state under the action of the vertical upward suspension force and / or the circumferential driving force, avoiding local uneven force that causes the washing drum 2 to lose balance and become dangerous during high-speed rotation.

[0051] like Figure 1 As shown, in this embodiment, the radial dimension of the flange 4 is not less than the radial dimension of the washing tub 2. Preferably, the shape of the flange 4 matches the contour of the bottom of the washing tub 2 so that the suspension forces acting on the washing tub 2 at different positions are in a balanced state, thereby preventing the washing tub 2 from deviating from the equilibrium position in the magnetic suspension state.

[0052] like Figure 1 As shown, in this embodiment, a limiting device 6 for adjusting the suspension position of the washing tub 2 is provided between the washing tub 2 and the flange 4, so that the washing tub 2 can operate within a certain height and width space range, thereby improving the stable operation of the washing tub 2 in the magnetic suspension state.

[0053] like Figure 1 As shown, in this embodiment, the limiting device 6 includes a limiting shaft 61 arranged in the vertical direction, and coaxial through holes are provided on the washing drum 2 and the flange 4. The limiting shaft 61 passes through the through holes on the washing drum 2 and the flange 4 in sequence to ensure that the washing drum 2 rises in the vertical direction under the action of the suspension force and rotates at high speed in the circumferential direction under the action of the driving force.

[0054] like Figure 1 As shown, in this embodiment, the limiting device 6 also includes a limiting seat 62 fixed on the limiting shaft 61. The limiting seat 62 is horizontally arranged above the bottom of the washing drum 2. The radial dimension of the limiting seat 62 is larger than the radial dimension of the through hole opened at the bottom of the washing drum 2 to limit the rising position of the washing drum 2 and prevent the washing drum 2 from losing control in the magnetic suspension state.

[0055] like Figure 1As shown, in this embodiment, there is a gap between the bottom of the impeller 11 and the bottom of the washing tub 2, and the limiting seat 62 is horizontally arranged at the bottom of the impeller 11. When the washing tub 2 moves in the vertical direction, the impeller 11 and the limiting seat 62 move relative to each other.

[0056] In this embodiment, under the premise that the magnetic poles of the magnetic rotating body and the opposite surfaces of the magnetic induction part are the same, the magnitude of the repulsive force between the magnetic rotating body and the flange 4 is controlled by adjusting the magnitude of the DC current to limit the rising position of the washing drum 2. During the rising process of the washing drum 2, the bottom of the washing drum 2 is in contact with the limit seat 62, so that the washing drum 2 moves within a certain height space range.

[0057] like Figure 1 As shown, in this embodiment, a motor bracket 10 is provided at the bottom of the box body 1, and the magnetic levitation motor 5 is installed on the motor bracket 10 relative to the bottom of the washing drum 2. Preferably, multiple groups of magnetic levitation motors 5 are horizontally arranged at the bottom of the washing drum 2, so that the magnitude of the suspension force and / or driving force applied to each position of the washing drum 2 is within a reasonable deviation range, so as to ensure that the washing drum 2 is in a stable and safe operating state.

[0058] With the above-mentioned magnetic levitation washing machine, the magnetic levitation motor 5 interacts with the magnetic induction part when powered on, causing the washing drum 2 to rise and / or rotate. This can effectively reduce the noise generated by vibration during the rotation of the washing drum 2, ensure the stability of the washing machine operation, and enhance the user experience. In addition, it can also reduce the number of shock-absorbing components, effectively reduce the weight of the washing machine, and reduce production costs.

[0059] Example 2

[0060] like Figure 1 As shown, this embodiment is a further limitation of the above-mentioned embodiment 1, and also includes a water cylinder 3 suspended above the magnetic levitation motor 5, a washing cylinder 2 is arranged in the water cylinder 3, and a limiting device 6 for adjusting the rising position and / or rotation position of the washing cylinder 2 is arranged at the bottom of the washing cylinder 2, and the washing cylinder 2 is connected to the water cylinder 3 via the limiting device 6.

[0061] In this example, there is no direct contact between the water drum 3, the washing drum 2 and the magnetic levitation motor 5, which reduces the vibration noise during the operation of the washing machine. The washing drum 2 is connected to the water drum 3 via the limiting device 6, which ensures that the washing drum 2 operates within a certain height and width space range, thereby improving the stability of the washing drum 2 in the magnetic levitation state.

[0062] like Figure 1 As shown, in this embodiment, the limiting device 6 includes a limiting shaft 61 extending vertically downward and a limiting seat 62 fixed on the limiting shaft 61. The limiting shaft 61 passes through the drain outlets opened at the bottom of the washing drum 2 and the bottom of the water drum 3 in sequence, and the limiting seat 62 is horizontally arranged above the bottom of the washing drum 2.

[0063] In this embodiment, the limiting shaft 61 can limit the washing drum 2 to rise or fall in the vertical direction, while ensuring that the washing drum 2 rotates circumferentially around the axis of the limiting shaft 61, limiting the movement trajectory of the washing drum 2 in the horizontal direction, and the limiting seat 62 can limit the rising position of the washing drum 2, thereby ensuring the stability of the washing drum 2 during operation through the limiting device 6.

[0064] like Figure 1 As shown, in this embodiment, the washing tub 2 is provided with a flange 4 fixedly connected to the bottom of the washing tub 2, the limiting shaft 61 passes through the drain outlets opened at the bottom of the washing tub 2, the flange 4 and the bottom of the water tub 3 in sequence, and the limiting seat 62 is horizontally arranged above the bottom of the washing tub 2.

[0065] In this embodiment, when power is turned on, the magnetic levitation motor 5 drives the magnetically friendly flange 4 to rise in the vertical direction and / or rotate in the circumferential direction, and the limiting shaft 61 passes through the washing drum 2, the flange 4 and the water drum 3 in sequence to ensure that the washing drum 2 rises in the vertical direction driven by the flange 4, and the limiting seat 62 is horizontally arranged above the bottom of the washing drum 2 to ensure that the washing drum 2 rotates in the circumferential direction driven by the flange 4.

[0066] like Figure 1 As shown, in this embodiment, the radial dimension of the limiting shaft 61 is smaller than the radial dimension of the drain outlet opened at the bottom of the washing tub 2, on the flange 4 and at the bottom of the water storage tub 3, and the radial dimension of the limiting seat 62 is larger than the radial dimension of the through hole opened at the bottom of the washing tub 2.

[0067] In this embodiment, the radial dimension of the limiting shaft 61 is smaller than the radial dimension of the drain outlet, ensuring that the washing water can flow out quickly through the drain outlet during the drainage stage, and the radial dimension of the limiting seat 62 is larger than the radial dimension of the through hole opened at the bottom of the washing drum 2, ensuring that the limiting seat 62 opens or closes the drain outlet accordingly to prevent the washing water from leaking during the non-drainage stage and affecting the washing and care effect of the clothes.

[0068] like Figure 1 As shown, in this embodiment, a drain valve 7 is provided at the drain outlet at the bottom of the water cylinder 3, and the drain valve 7 includes a valve body, and the valve body has a water inlet, a water outlet and a drainage channel extending from the water inlet to the water outlet. The water outlet of the valve body is connected to the drainage pipe 8, and the limiting shaft 61 passes through the water inlet of the valve body and is placed in the drainage channel.

[0069] In this embodiment, by controlling the magnitude of the DC current, the repulsive force between the magnetic rotating body and the magnetic induction part is adjusted, and then the rising position of the washing drum 2 is controlled, so that the limit seat 62 opens or closes the drain outlet opened at the bottom of the washing drum 2 accordingly, and controls the washing water to flow into the drainage channel through the interval between the limit shaft 61 and the drain outlet, and finally be discharged through the drainage pipe 8.

[0070] like Figure 1 As shown, in this embodiment, a connector 9 for connecting to the side wall of the box body 1 is provided on the water cylinder 3. The water cylinder 3 and the side wall of the box body 1 are connected via the connector 9, so that the water cylinder 3 is suspended above the magnetic levitation motor 5 to avoid direct contact between the magnetic levitation motor 5 and the water cylinder 3. In particular, during the operation of the magnetic levitation motor 5, vibration noise is generated due to friction between the magnetic levitation motor 5 and the water cylinder 3.

[0071] like Figure 1 As shown, in this embodiment, a circle of positioning ring 12 is provided on the outer wall of the water cylinder 3, and the positioning ring 12 is used to control the water cylinder 3 to maintain a balanced state; the water cylinder 3 is connected to the connecting member 9 via the positioning ring 12, and the connecting member 9 is symmetrically arranged relative to the water cylinder 3, further improving the stability and safety of the water cylinder 3, so that the water cylinder 3 can be stably suspended above the magnetic levitation motor 5.

[0072] With the above-mentioned magnetic levitation washing machine, during the washing and care process, there is no contact between the washing drum 2, the water drum 3 and the magnetic levitation motor 5. In particular, when the washing drum 2 is rotating at high speed, there is no friction between the washing drum 2, the water drum 3 and the magnetic levitation motor 5. This can significantly reduce the noise generated by vibration during the high-speed rotation of the washing drum 2, reduce the use of shock-absorbing components, and improve the user experience.

[0073] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A magnetic levitation washing machine, comprising a housing and a washing tub disposed within the housing, characterized in that: A motor bracket is provided at the bottom of the box body, and the magnetic levitation motor is installed on the motor bracket relative to the bottom of the washing drum. The washing drum is provided with a magnetic induction part corresponding to the magnetic levitation motor. When energized, the magnetic levitation motor generates a levitation force between the magnetic induction part and the washing drum to lift the washing drum and a driving force to rotate the washing drum. The utility model also includes a water storage drum arranged above the magnetic levitation motor, a washing drum arranged in the water storage drum, a limiting device for adjusting the rising position and rotational position of the washing drum arranged at the bottom of the washing drum, and the washing drum is connected to the water storage drum via the limiting device; the limiting device includes a limiting shaft extending vertically downward and a limiting seat fixed on the limiting shaft, the limiting shaft sequentially passes through the bottom of the washing drum and the drainage opening opened at the bottom of the water storage drum, a gap is formed between the bottom of the impeller and the bottom of the washing drum, and the limiting seat is horizontally arranged in the gap between the top of the bottom of the washing drum and the bottom of the impeller; The magnetic levitation motor includes a magnetic rotating body and a magnetic fixed body. When power is applied, the magnetic rotating body generates a levitation force with the magnetic induction part to lift the washing drum. When power is applied, the magnetic fixed body generates a driving force with the magnetic induction part to rotate the washing drum. The washing drum is provided with a flange fixedly connected to the bottom of the washing drum, and the flange material is a magnetic-affinity material.

2. A magnetic levitation washing machine according to claim 1, characterized in that: When power is supplied to the magnetic rotating body, a suspension force is generated between the magnetic rotating body and the flange to lift the flange, and when power is supplied to the magnetic fixed body, a driving force is generated between the magnetic fixed body and the flange to rotate the flange.

3. A magnetic levitation washing machine according to claim 2, characterized in that: The axis of the flange coincides with the axis of the washing tub, and the flange, the magnetic rotating body and the magnetic fixing body are all arranged in a horizontal direction.

4. A magnetic levitation washing machine according to claim 1, characterized in that: The washing tub is provided with a flange fixedly connected to the bottom of the washing tub. The limiting shaft passes through the bottom of the washing tub, the flange and the drain opening at the bottom of the water storage tub in sequence. The limiting seat is horizontally arranged above the bottom of the washing tub.

5. A magnetic levitation washing machine according to claim 4, characterized in that: The radial size of the limiting shaft is smaller than the radial size of the drain openings opened on the bottom of the washing tub, the flange and the bottom of the water storage tub, and the radial size of the limiting seat is larger than the radial size of the through hole opened at the bottom of the washing tub.

6. A magnetic levitation washing machine according to claim 5, characterized in that: A drain valve is provided at the drain outlet at the bottom of the water storage cylinder. The drain valve includes a valve body, which has a water inlet, a water outlet and a drainage channel extending from the water inlet to the water outlet. The water outlet of the valve body is connected to the drainage pipe, and the limiting shaft passes through the water inlet of the valve body and is placed in the drainage channel.

7. The magnetic levitation washing machine according to claim 1, characterized in that: The water container is provided with a connecting piece for connecting with the side wall of the box body.

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