Electromagnetic force transmission structure for washing machine

Abstract

The utility model discloses an electromagnetic force transmission structure for a washing machine, and relates to the technical field of washing machines. The washing machine comprises a washing machine inner barrel, and a transmission assembly and a power supply assembly are arranged at the bottom of the washing machine inner barrel. The transmission assembly comprises a driven disc and a driving disc, the driven disc is fixedly arranged on the bottom wall of the washing machine inner barrel, and the upper surface of the driving disc movably contacts with the bottom of the washing machine inner barrel; according to the utility model, through the cooperation of the power supply assembly and the transmission assembly, a magnetic attraction force is generated between the electromagnet and the permanent magnet in a power-on mode, so that the washing machine inner cylinder, the driving disc and the driven disc form a whole, and the rotating shaft is driven to rotate and enables the washing machine inner cylinder to rotate through the driving disc and the driven disc; and the magnetic force between the electromagnet and the permanent magnet disappears, and the washing machine inner cylinder stops rotating, so that penetration-free power transmission of the washing machine inner cylinder is conveniently realized, and the risk and probability of water leakage are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a washing machine technical field, concretely is a kind of electromagnetic force transmission structure for washing machine. BACKGROUND

[0002] Current motor rotation power transmission is realized in the field of washing machine with transmission shaft, the torsional force of motor is transmitted to pulsator through coaxial bearing, however, such transmission mode still has some defects:

[0003] In the existing washing machine, the power of the motor of the washing machine is transmitted to the pulsator through the coaxial bearing, so that the washing machine inner drum space must have a penetrating damage, for waterproof, sealing and other scenarios, it will form the risk and probability of water leakage, and also lead to the increase of cost. UTILITY MODEL CONTENTS

[0004] In order to solve the above problems, the utility model aims at providing an electromagnetic force transmission structure for washing machine.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme: an electromagnetic force transmission structure for washing machine, comprising a washing machine inner drum, the bottom of the washing machine inner drum is respectively provided with a transmission assembly and a power supply assembly;

[0006] The transmission assembly comprises a driven disc and a driving disc, the driven disc is fixedly arranged on the bottom wall of the washing machine inner drum, the upper surface of the driving disc is in movable contact with the bottom of the washing machine inner drum, the upper surface of the driven disc is fixedly provided with a plurality of permanent magnets arranged in a ring array, the lower surface of the driving disc is fixedly provided with a plurality of electromagnets arranged in a ring array, and the permanent magnets vertically correspond to the electromagnets.

[0007] The transmission assembly further comprises an assembly seat, the upper surface of the assembly seat is fixedly provided with a motor, the shaft center of the driving disc is fixedly provided with a rotating shaft, the driving output end of the motor and one end of the rotating shaft are both fixedly provided with transmission wheels, and a transmission belt is transmissionally installed between the two transmission wheels.

[0008] Preferably, the inner wall of the washing machine inner drum is fixedly provided with an isolation disc.

[0009] Preferably, the outer wall of the isolation disc is fixedly provided with a sealing ring, and the outer wall of the sealing ring is fixedly connected with the inner wall of the washing machine inner drum.

[0010] Preferably, the washing machine inner drum, the driven disc and the driving disc are made of plastic material.

[0011] Preferably, the power supply assembly comprises a wireless power transmission coil and a power supply source, the wireless power transmission coil and the power supply source are assembled on the upper surface of the assembling seat, one end of the rotating shaft is fixedly provided with a wireless power receiving coil, and the wireless power receiving coil vertically corresponds to the wireless power transmission coil and the power supply source.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] In the utility model, through the cooperation of the power supply assembly and the transmission assembly, the magnetic attraction between the electromagnet and the permanent magnet is generated through the energization, the washing machine inner drum, the driving disc and the driven disc form an integral whole, the washing machine inner drum is rotated through the driving of the rotating shaft and the driving disc and the driven disc, the magnetic force between the electromagnet and the permanent magnet disappears after the power supply is stopped, and the washing machine inner drum stops rotating, so that the non-penetrating power transmission of the washing machine inner drum is conveniently realized, and the risk and probability of water leakage are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without the creative labor for those skilled in the art.

[0015] Figure 1 It is a whole structure schematic view of the electromagnetic force transmission structure for the washing machine.

[0016] Figure 2 It is a sectional structure schematic view of the washing machine inner drum.

[0017] Figure 3 It is a connection structure schematic view of the transmission assembly and the power supply assembly.

[0018] Figure 4 It is another connection structure schematic view of the transmission assembly and the power supply assembly.

[0019] In the drawing: 1, washing machine inner drum;11, isolation disc;12, sealing ring;2, transmission assembly;21, driven disc;22, driving disc;23, permanent magnet;24, electromagnet;25, rotating shaft;26, assembling seat;27, motor;28, transmission wheel;29, transmission belt;3, power supply assembly;31, wireless power transmission coil and power supply source;32, wireless power receiving coil. DETAILED DESCRIPTION

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figures 1-4 As shown, this utility model provides an electromagnetic force transmission structure for a washing machine, including a washing machine inner drum 1. An isolation plate 11 is fixedly installed on the inner wall of the washing machine inner drum 1, and a sealing ring 12 is fixedly provided on the outer wall of the isolation plate 11. The outer wall of the sealing ring 12 is fixedly connected to the inner wall of the washing machine inner drum 1. By setting the isolation plate 11 and the sealing ring 12, the isolation plate 11 and the sealing ring 12 can isolate the washing machine inner drum 1. The upper part of the isolation plate 11 is the washing operation space. A transmission component 2 and a power supply component 3 are respectively provided at the bottom of the washing machine inner drum 1. By setting the power supply component 3 and the transmission component 2, the power supply component 3 can supply power to the transmission component 2, and the transmission component 2 can drive the washing machine inner drum 1 to rotate, thereby realizing non-penetrating power transmission and reducing the risk and probability of water leakage.

[0022] The transmission assembly 2 includes a driven disc 21, a driven disc 22, and a mounting base 26. The driven disc 21 is fixedly mounted on the bottom wall of the inner drum 1 of the washing machine. The upper surface of the driven disc 22 is in movable contact with the bottom of the inner drum 1. Three permanent magnets 23 arranged in a ring array are fixedly mounted on the upper surface of the driven disc 21, and three electromagnets 24 arranged in a ring array are fixedly mounted on the lower surface of the driven disc 22. The permanent magnets 23 and electromagnets 24 are vertically aligned. The transmission assembly 2 consists of a driven disc 21, a driven disc 22, permanent magnets 23, and an electromagnet 24. When the electromagnet 24 is energized, it attracts the permanent magnet 23, thereby fixing the inner drum 1 of the washing machine between the active disc 22 and the passive disc 21. When the active disc 22 rotates, the inner drum 1 of the washing machine can be rotated by the action of the passive disc 21. The inner drum 1, the passive disc 21 and the active disc 22 of the washing machine are made of plastic. The plastic inner drum 1, the passive disc 21 and the active disc 22 avoid affecting the attraction of the electromagnet 24 and the permanent magnet 23.

[0023] A motor 27 is fixedly mounted on the upper surface of the mounting base 26, and a rotating shaft 25 is fixedly mounted at the axis of the drive disc 22. The rotating shaft 25 is rotatably mounted in the bottom cavity of the washing machine. A transmission wheel 28 is fixedly mounted on the drive output end of the motor 27 and one end of the rotating shaft 25. A transmission belt 29 is installed between the two transmission wheels 28. When the motor 27 is turned on, the drive shaft of the motor 27 can rotate the rotating shaft 25 through the two transmission wheels 28 and the transmission belt 29. The rotating shaft 25 can then rotate the drive disc 22.

[0024] The power supply assembly 3 comprises a wireless power transmission coil and a power supply 31, the wireless power transmission coil and the power supply 31 are externally connected to be powered by a power supply line, the wireless power transmission coil and the power supply 31 are assembled on the upper surface of the assembling seat 26, one end of the rotating shaft 25 is fixedly provided with a wireless power receiving coil 32, the wireless power receiving coil 32 vertically corresponds to the wireless power transmission coil and the power supply 31, through the power supply assembly 3 composed of the wireless power transmission coil and the power supply 31 and the wireless power receiving coil 32, when the wireless power transmission coil and the power supply 31 are powered, the wireless power receiving coil 32 is powered by the electromagnetic wave emitted by the wireless power transmission coil and the power supply 31, the electromagnet 24 on the driving disc 22 is driven by the current of the wireless power receiving coil 32, so that the suction force between the electromagnet 24 and the permanent magnet 23 can be generated.

[0025] Working principle: in use, first, the wireless power transmission coil and the power supply 31 are powered by the power supply line, after the wireless power transmission coil and the power supply 31 are powered, the wireless power receiving coil 32 is powered by the electromagnetic wave emitted by the wireless power transmission coil and the power supply 31, the three electromagnets 24 are driven by the current of the wireless power receiving coil 32, at this time, the three electromagnets 24 and the three permanent magnets 23 are adsorbed and fixed together, so that the washing machine inner drum 1 and the driving disc 22 and the driven disc 21 form an integral whole.

[0026] Subsequently, the operator starts the motor 27, the driving shaft of the motor 27 rotates the rotating shaft 25 through the two transmission wheels 28 and the transmission belt 29, the rotating shaft 25 rotates the driving disc 22, and the cooperation of the driving disc 22 and the driven disc 21 makes the washing machine inner drum 1 rotate.

[0027] When the power supply of the wireless power transmission coil and the power supply 31 is turned off, the magnetic force between the electromagnet 24 and the permanent magnet 23 disappears, and the washing machine inner drum 1 stops rotating.

[0028] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. An electromagnetic force transmission structure for a washing machine, comprising a washing machine inner tub (1), characterized in that: The bottom of the washing machine inner drum (1) is respectively provided with a transmission assembly (2) and a power supply assembly (3); The transmission assembly (2) comprises a driven disc (21) and a driving disc (22), the driven disc (21) is fixedly arranged on the bottom wall of the washing machine inner drum (1), the upper surface of the driving disc (22) is in movable contact with the bottom of the washing machine inner drum (1), the upper surface of the driven disc (21) is fixedly provided with a plurality of annular arrayed permanent magnets (23), the lower surface of the driving disc (22) is fixedly provided with a plurality of annular arrayed electromagnets (24), the permanent magnets (23) vertically correspond to the electromagnets (24); The transmission assembly (2) further comprises an assembly seat (26), the upper surface of the assembly seat (26) is fixedly provided with a motor (27), the shaft center of the driving disc (22) is fixedly provided with a rotating shaft (25), the driving output end of the motor (27) and one end of the rotating shaft (25) are both fixedly provided with a transmission wheel (28), and the transmission belt (29) is transmissionally installed between the two transmission wheels (28).

2. A magnetic drive for a washing machine as claimed in claim 1, wherein The inner wall of the washing machine inner drum (1) is fixedly installed with an isolation disc (11).

3. A magnetic drive for a washing machine as claimed in claim 2, wherein the magnet is a permanent magnet. The outer wall of the isolation disc (11) is fixedly provided with a sealing ring (12), and the outer wall of the sealing ring (12) is fixedly connected with the inner wall of the washing machine inner drum (1).

4. The electromagnetic force transmission structure for a washing machine according to claim 1, wherein The washing machine inner drum (1), the driven disc (21) and the driving disc (22) are made of plastic material.

5. The electromagnetic force transmission structure for a washing machine according to claim 1, wherein The power supply assembly (3) comprises a wireless power supply transmitting coil and a power supply source (31), the wireless power supply transmitting coil and the power supply source (31) are assembled on the upper surface of the assembly seat (26), one end of the rotating shaft (25) is fixedly provided with a wireless power supply receiving coil (32), and the wireless power supply receiving coil (32) vertically corresponds to the wireless power supply transmitting coil and the power supply source (31).

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