CN111663287B - Washing machine - Google Patents

Abstract

The invention belongs to the technical field of electric appliance manufacturing, and in particular relates to a washing machine. The invention aims to solve the problem that the existing wires will be damaged or broken under continuous torsion. The washing machine of the present invention comprises: an outer cylinder; an inner cylinder rotatably arranged in the outer cylinder, the inner cylinder has an opening for putting clothes in; a drive mechanism, the output shaft of which passes through the outer cylinder and is connected with the outer cylinder. The inner cylinder is driven and connected to drive the inner cylinder to rotate along a rotation axis; the magnet is fixed on the outer cylinder to form a magnetic field around the output shaft; the coil is installed on the output shaft, The coil is used to rotate in the magnetic field driven by the output shaft to generate an induced current; the electric device is arranged in the inner cylinder and connected to the coil for power supply.

Description

washing machine

technical field

The invention belongs to the technical field of electric appliance manufacturing, and in particular relates to a washing machine.

Background technique

A washing machine is a cleaning appliance that uses electrical energy to generate mechanical action to wash clothes, etc. With the development of the washing machine industry, consumers have higher and higher requirements on the functions of the washing machine.

In the related art, the washing machine includes a box body, an outer cylinder is arranged in the box body, and a rotatable inner cylinder is arranged in the outer cylinder; a control panel seat is provided on the top of the box body, and a main circuit board and a The mechanical button or touch panel connected to the communication board; sometimes an electrical device such as an indicator light is set in the inner cylinder. During assembly, the electrical device arranged in the inner barrel needs to be electrically connected to the main circuit board through wires, so that the main circuit board supplies power to the electrical device. However, during actual assembly, it was found that since the inner cylinder rotates relative to the outer cylinder during work, a part of the wire drawn from the main circuit board will follow the rotation of the inner cylinder. Damaged or broken.

Accordingly, there is a need in the art for a washing machine to solve the above problems.

Contents of the invention

In order to solve the above-mentioned or other potential problems in the prior art, the present invention provides a washing machine, comprising: an outer cylinder; an inner cylinder rotatably arranged in the outer cylinder, the inner cylinder has a The opening of the drive mechanism, the output shaft of which passes through the outer cylinder and is connected with the inner cylinder in transmission, so as to drive the inner cylinder to rotate along a rotation axis; the magnet is fixed on the outer cylinder to operate on the A magnetic field is formed around the output shaft; a coil is installed on the output shaft, and the coil is used to rotate in the magnetic field driven by the output shaft to generate an induced current; an electric device is arranged in the inner cylinder , and is connected to the coil for power supply.

In a preferred technical solution of the above washing machine, the rotation axis is arranged horizontally or there is an acute angle between the rotation axis and the horizontal plane.

In a preferred technical solution of the above washing machine, the rotation axis is arranged vertically.

In a preferred technical solution of the steaming washing machine above, the electrical device includes an indicator installed on the inner tube, and the indicator is used to provide a visual or auditory indication signal to the user.

In a preferred technical solution of the above washing machine, the indicator includes an indicator light.

In a preferred technical solution of the washing machine above, there are multiple indicator lights, and the plurality of indicator lights include at least two colors.

In a preferred technical solution of the washing machine above, the indicator further includes a controller, the controller is connected to the coil for power supply, and the controller is used to control the opening and closing of the indicator light.

In the preferred technical solution of the washing machine above, there are multiple indicator lights, and the controller is used to control the on-off time and the on-off frequency of the plurality of indicator lights.

In a preferred technical solution of the washing machine above, the plurality of indicator lights include at least two colors.

In a preferred technical solution of the above washing machine, the magnet is disc-shaped, and the magnet and the coil are arranged opposite to each other along the axis of the output shaft with an air gap formed therebetween.

In the preferred technical solution of the above-mentioned washing machine, the washing machine further includes a pulsator mechanism arranged in the inner cylinder, and the pulsator mechanism is connected to the output shaft of the drive mechanism in transmission, so as to drive the pulsator mechanism to Rotate on the inner cylinder.

In a preferred technical solution of the above washing machine, the indicator light in the electrical device is set on the pulsator mechanism.

In the preferred technical solution of the above-mentioned washing machine, the pulsator mechanism includes a pulsator plate, and the pulsator plate is provided with a through hole penetrating along the axial direction of the output shaft of the driving mechanism, and shafts are respectively installed at both ends of the through hole. sleeve and pulsator cover; the shaft sleeve is connected to the output shaft of the drive mechanism; the pulsator cover is sealed with the pulsator disc; the indicator light is arranged in the through hole.

In the preferred technical solution of the above-mentioned washing machine, the electrical device is electrically connected to the coil through a wire; the wire includes a first wire, the output shaft is a hollow shaft, and the first wire passes through the hollow inside the shaft.

In the preferred technical solution of the above washing machine, the shaft sleeve is provided with a second wire passing hole extending axially, the wire also includes a second wire, and the second wire is passed through the second wire hole. in the wire hole.

In a preferred technical solution of the washing machine above, a first conductive member electrically connected to the first wire is mounted on the output shaft, and a second conductive member electrically connected to the second wire is provided on the sleeve, The first conductive part can rotate relative to the second conductive part and is always electrically connected with the second conductive part.

In a preferred technical solution of the above washing machine, the first conductive member and the second conductive member form a conductive bearing or a conductive slip ring.

A lint filter is arranged on the side wall of the inner cylinder or the bottom of the inner cylinder, and the electrical device is installed on the lint filter.

There are multiple indicator lights in the electrical device; a balance ring is installed on the top of the inner cylinder, and a plurality of the indicator lights are uniformly arranged on the balance ring.

Those skilled in the art can understand that the washing machine of the present invention includes: an outer cylinder, an inner cylinder, a drive mechanism, a magnet, a coil, and an electrical device; A magnetic field is formed around it, and the coil is installed on the output shaft to rotate in the magnetic field driven by the output shaft to generate an induced current and provide it to the electric device arranged in the inner cylinder. Through the above arrangement, the wire drawn from the coil can enter the inner cylinder from the output shaft to be electrically connected with the electrical device, and the wire will not be twisted with the rotation of the inner cylinder, so that it is not easy to be damaged or broken, thereby improving the its service life. In addition, by using the rotary motion of the driving mechanism itself to generate electric energy and supply it to the electric device, it also contributes to energy saving.

Description of drawings

Preferred embodiments of the washing machine of the present invention will be described below with reference to the accompanying drawings and in conjunction with the washing machine. Attached are:

FIG. 1 is a schematic diagram of a partial structure of a washing machine according to an embodiment of the present invention;

Fig. 2 is a structural schematic diagram of a power generating device and an output shaft in a washing machine according to an embodiment of the present invention;

Fig. 3 is a partial structural schematic diagram II of the washing machine according to the embodiment of the present invention;

FIG. 4 is a second schematic diagram of a partial structure of A in FIG. 3 .

In the drawings: 1-outer cylinder; 3-inner cylinder; 4-pulsator mechanism; 41-pulsator disc; 42-shaft sleeve; 43-pulsator cover; 5-drive mechanism; 51-output shaft; 52-drive Motor; 53-reducer; 7-generating device; 71-magnet; 72-coil; 721-air gap; 731-first wire; 732-second wire; 74-conductive bearing;

Detailed ways

First of all, those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention, and are not intended to limit the protection scope of the present invention. Those skilled in the art can make adjustments as needed so as to adapt to specific applications.

Secondly, it should be noted that in the description of the present invention, terms such as "inner", "outer", "top", "bottom" and other indicated directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings , which is just for convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In addition, it should be noted that, in the description of the present invention, unless otherwise specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

The preferred technical solutions of the washing machine in the embodiment of the present invention are set forth below.

Refer first to Figures 1 to 4.

As shown in FIG. 1 , the washing machine of the present invention includes an outer tub 1 , an inner tub 3 , a drive mechanism 5 , a power generating device 7 and an electrical device 9 . In addition, the washing machine generally also includes a general-purpose cabinet and a control panel base. Wherein, for ease of description, in this embodiment and the following embodiments, the end of the washing machine supported on the ground (or the end facing the ground) is taken as the bottom end, and the end opposite to the bottom end is the top end of the washing machine.

The casing of the washing machine can be in the shape of a cuboid, and the top of the casing can be provided with an opening. An outer cylinder 1 is arranged in the box body; an inner cylinder 3 is installed into the outer cylinder 1 through an opening opened at the top of the outer cylinder 1 and can rotate relative to the outer cylinder 1; the top of the inner cylinder 3 is provided with an opening for putting clothes. Wherein, the inner cylinder 3 is generally arranged coaxially with the outer cylinder 1; the inner cylinder 3 can rotate along the central axis of the two. It is easy to understand that when the washing machine is a drum type washing machine, the rotation axis of the inner tub 3 can be set horizontally or have an acute angle with the horizontal plane, that is, the rotation axis of the inner tub 3 can be horizontal or slightly inclined upward from the rear end of the inner tub 3 It is obvious that the rotation axis of the inner cylinder 3 is inclined to the horizontal plane to help pick and place clothes; The rotation axis may vertically extend from the bottom end of the inner cylinder 3 to the top end.

The opening of the box body is provided with a control panel seat, the control panel seat is provided with a main circuit board for controlling the working state of the washing machine, and the control panel seat is provided with a cover that can open and close the opening of the inner tube 3 . Wherein, the control panel seat is provided with function keys, and the function keys can be electrically connected with the main circuit board, so that the user can adjust the working state of the washing machine through the function keys; the function keys include at least one of the following: buttons, knobs, and touch keys; A display area can also be provided on the seat or the cover, and the display area is used to display the working status information of the washing machine (including but not limited to the working time and remaining time, etc.).

For a drum-type washing machine, a drive mechanism is provided between the outer cylinder 1 and the cabinet, and the drive mechanism is electrically connected to the main circuit board, so that the main circuit board controls the drive mechanism to drive the inner cylinder to rotate so as to clean and dry the clothes. .

For a pulsator washing machine, a pulsator mechanism 4 is provided at the bottom of the inner tub 3 , and it should be understood that the pulsator mechanism 4 is located inside the inner tub 3 . Similar to the drum-type washing machine, a driving mechanism 5 is also arranged between the outer cylinder 1 and the cabinet of the pulsator-type washing machine, and the driving mechanism 5 is electrically connected to the main circuit board to drive the pulsator mechanism 4 by controlling the driving motor 52 through the main circuit board. Rotate to realize the cleaning of the clothes, and meanwhile, the main circuit board can control the drive mechanism 5 to drive the inner tube 3 to rotate to realize the cleaning and drying of the clothes.

Certainly, the structure of the washing machine is not limited thereto, and this embodiment is only an example here. For the structure and implementation process of the washing machine, the parts not described in this embodiment can adopt conventional choices in the field. The following may wish to take the pulsator washing machine as an example to illustrate the structure and implementation process of the washing machine in this embodiment. It can be understood that: when the washing machine is a drum type washing machine or other types of washing machines, the implementation process may be similar to that described in this embodiment.

In some examples, the drive mechanism 5 may include a drive motor 52, and the output shaft 51 of the drive motor 52 is connected to the pulsator mechanism 4 and the inner cylinder 3; at this time, the output shaft of the drive motor 52 is also the output shaft 51 of the drive mechanism 5 . In other examples, the drive mechanism 5 includes a drive motor 52 and a speed reducer 53, the speed reducer 53 is arranged at the output end of the drive motor 52, and the output shaft of the speed reducer 53 is connected with the pulsator mechanism 4 and the inner cylinder 3; at this time, The output shaft of the speed reducer 53 is also the output shaft 51 of the drive mechanism 5 .

As shown in FIGS. 1 and 2 , the generator 7 may include a coil 72 and a magnet 71 . The coil 72 (that is, the rotor) can be arranged on the output shaft 51 of the drive mechanism 5; for example, the coil 72 can include an iron core sleeved on the output shaft 51 of the drive motor 52, and a single turn can be wound on the iron core. or multiple turns of wire. The magnet 71 (that is, the stator) can be arranged on the outer cylinder 1 , and the magnet 71 can form a magnetic field around the output shaft 51 that can be cut by the coil 72 ; wherein, the magnet 71 can be a permanent magnet 71 .

In this example, the driving mechanism 5 drives the pulsator mechanism 4 or the inner cylinder 3 to rotate, and also drives the coil 72 to rotate. In this way, the coil 72 can cut the magnetic field lines in the magnetic field formed by the magnet 71. According to the principle of electromagnetic induction, A current can be generated inside the coil 72 , and the current can be transmitted to the electric device 9 disposed on the inner cylinder 3 and electrically connected to the coil 72 to provide electric energy for the electric device 9 .

In one optional implementation manner, the coil 72 can be arranged on the part of the output shaft 51 between the inner cylinder 3 and the outer cylinder 1 ; the magnet 71 can be arranged on the inner surface of the outer cylinder 1 . Wherein, the magnet 71 may include a ring magnet disposed outside the coil 72 ; or, the magnet 71 may include a first magnet and a second magnet disposed on opposite sides of the output shaft 51 . In addition, the power generating device 7 may further include a rectifier, which may be connected between the coil 72 and the electrical equipment, and the rectifier may be used to convert the alternating current output by the coil 72 into direct current. Certainly, the structure of the power generating device 7 is not limited thereto. This embodiment is only an example here, as long as it can generate electric energy that can be provided to the electric device 9 along with the rotation of the output shaft 51 of the driving mechanism 5 .

In another optional implementation, the magnet 71 can be in the shape of a disk, the disk-shaped magnet 71 can be sleeved on the output shaft 51 of the drive mechanism 5, the magnet 71 can be fixed on the inner surface of the outer cylinder 1, and the magnet 71 forms There are magnetic induction lines along the axial direction of the output shaft 51 in the magnetic field; the coil 72 is sleeved on the output shaft 51 of the drive mechanism 5, and the coil 72 and the output shaft 51 are fixed so that there is relative rotation between the coil 72 and the magnet 71, and There is a certain distance between the coil 72 and the magnet 71 to form an air gap 721 . In this example, the structure of the power generating device 7 is relatively simple. Under the condition of ensuring the power generation efficiency, it is lighter and thinner, smaller in size, occupies less space, and has lower requirements on sealing and waterproofing.

The electrical device 9 electrically connected to the power generating device 7 can be arranged in the inner cylinder 3, specifically, it can be arranged on the side wall of the inner cylinder 3 or at a position such as the pulsator mechanism 4, since the coil 72 is arranged on the output shaft 51, so In some examples, the wires drawn from the power generating device 7 can pass through the output shaft 51 of the driving mechanism 5 and enter the inner cylinder 3 so as to be electrically connected with the electrical device 9 provided on the inner cylinder 3 . Taking the electrical device 9 arranged on the side wall of the inner cylinder 3 as an example, in order to better protect the wire and its electrical connection with the electrical device 9, a protective case can be provided on the inner cylinder 3 at a position corresponding to the direction of the wire , the wires can be arranged in the space enclosed by the protective shell and the side wall of the inner cylinder 3; wherein, the entrance end of the protective shell where the wires can enter and the exit end close to the electrical device 9, the entrance end and the exit end of the protective shell are both There is sealing treatment, such as setting seals such as sealing rings or sealants.

Wherein, the electrical device 9 may include a temperature sensor, a weight sensor, a liquid level sensor, a light emitting lamp, an ultraviolet lamp, a buzzer, and the like.

In this embodiment, the electric device 9 can be arranged on the bottom end of the inner cylinder 3 side wall or on the bottom end of the inner cylinder 3 such as the pulsator mechanism 4, etc., so as to shorten the wire connecting the electric device 9 and the power generating device 7 the routing path.

In the washing machine provided in this embodiment, the coil 72 and the magnet 71 are arranged at the output shaft 51 of the driving mechanism 5, and the output shaft 51 drives the coil 72 to rotate and cuts the magnetic field lines in the magnetic field formed by the magnet 71, so as to be arranged in the inner drum. The electrical device 9 in 3 provides electric energy. In this way, the wire connected to the output end of the coil 72 can pass through the output shaft 51 of the drive mechanism 5 and be electrically connected to the electrical device 9 arranged in the inner cylinder 3, thereby avoiding the wire from being damaged or broken due to the rotation of the inner cylinder, Thereby its service life can be increased. When the electrical device 9 is installed on the pulsator mechanism, the routing path of the wire can also be shortened. In addition, by utilizing the rotary motion of the driving mechanism 5 itself to generate electric energy and supply it to the electric device 9, it also contributes to energy saving.

In an optional embodiment, the electrical device 9 includes an indicator installed on the inner cylinder 3, and the indicator is used to provide a visual or audible indication signal to the user to indicate the working state of the washing machine.

In some examples, the indicator may include an indicator light (eg, an incandescent light or an LED light) for providing a visual indication signal to the user. The indicator light can be arranged on the side wall of the inner cylinder 3, or the indicator light can be arranged on the pulsator mechanism 4, so as to simplify the wiring path of the lead connecting the indicator light and the power generation device 7. Wherein, there may be one or more indicator lights; when there are multiple indicator lights, the colors of the multiple indicator lights may include at least two, so as to improve user experience. Wherein, the indicator light can be turned on when the rotational speed of the driving motor in the driving mechanism 5 reaches a preset value, for example, the indicator light can be turned on when the rotational speed of the driving motor makes the electric energy generated by the power generation device meet the power requirement of the indicator light.

In addition, the indicator may further include a controller, and the controller is electrically connected to the indicator light, so that the controller controls the on-off time and the on-off frequency of the indicator light respectively. For example, in different working stages or working states, the controller can control the corresponding indicator lights to light up in corresponding colors. Of course, if there are multiple indicator lights, the controller can control the working states of these multiple indicator lights, such as on-off time, lighting colors, etc., so as to have a cool lighting effect.

In some examples, the indicator may also include a buzzer for providing an audible indication to the user. In addition, the indicator can also include a controller, which can be electrically connected to the buzzer, and the controller can be used for the frequency and duration of the buzzer to send out the auditory prompt signal.

In addition, the electric device may also include an ultraviolet lamp to sterilize the clothes.

In an optional embodiment, the pulsator mechanism 4 of the washing machine may include a pulsator plate 41, a through hole penetrating in the axial direction of the output shaft 51 is provided in the middle of the pulsator plate 41, and a The shaft sleeve 42 connected to the output shaft 51 of the drive mechanism 5 is provided with a pulsator cover 43 at the top of the through hole, and the pulsator cover 43 is sealed with the pulsator disc 41, so as to prevent the water in the inner tube 3 from leaking from the pulsator cover 43 Leakage between the pulsator disc 41. In this example, the pulsator disc 41 is also provided with a plurality of ribs extending from the middle to the edge. When the pulsator disc 41 rotates back and forth with the drive mechanism 5, the pulsator disc 41 will stir the clothes therein and turn them up and down in the water. And through the friction with the ribs arranged on the pulsator plate 41, and at the same time through the effect of detergent, the dirt on the clothes is cleaned.

As shown in FIG. 3 and FIG. 4 , the power consumption device 9 can be arranged on the pulsator mechanism 4 to further simplify the wiring path of the wires connecting the power consumption device 9 and the power generation device 7 . When the electrical device 9 is a sensor such as a temperature sensor, the electrical device 9 can be embedded on the pulsator cover 43, and the wire drawn from the electrical device 9 can pass through the pulsator cover 43 and pass through the output of the drive mechanism 5. The shaft 51 is electrically connected with the power generating device 7; wherein, since the sensor can be fixed on the pulsator cover 43 and rotates with the pulsator mechanism 4, that is, the electrical device 9 can move synchronously with the pulsator mechanism 4, therefore, the wire and the pulsator mechanism Sealing elements such as sealing rings and sealant can be provided between the third wire passing holes on the cover 43 to ensure the reliability of sealing and waterproofing the electrical device 9 and the generating device 7 . When the electrical device 9 is an indicator light, the indicator light can be arranged in the space formed by the pulsator cover 43 and the pulsator disc 41, for example, the indicator light can be arranged in the through hole in the middle part of the pulsator disc 41 to ensure correct Reliability of the waterproofing of the electric device 9 and the power generating device 7. It is easy to understand that in this example, the pulsator cover 43 can be transparent or translucent, so that the light emitted by the indicator light can be emitted from the pulsator cover 43 .

In this example, the wires connecting the electrical device 9 and the power generating device 7 may include a first wire 731 and a second wire 732 , the first wire 731 is passed through the output shaft 51 , and the second wire 732 is passed through the shaft sleeve 42 . Correspondingly, the output shaft 51 can be a hollow shaft, and the output shaft 51 can be provided with a first wire passing hole extending radially thereof, and the first wire passing hole communicates with the central hole of the output shaft 51, so that from the power generation device 7 The drawn first wire 731 enters the first wire passing hole of the output shaft 51 from the first wire passing hole. In some examples, the wire passing through the central hole of the output shaft 51 can pass through the central hole of the shaft sleeve 42 and be electrically connected with the electrical device 9; in other examples, the shaft sleeve 42 can be provided with a The axially extending second wire passing hole, the second wire 732 drawn from the electrical device 9 can pass through the second wire passing hole, correspondingly, the output shaft 51 is also provided with a fourth wire passing hole, the first The wire 731 can pass through the fourth wire hole and be electrically connected with the second wire 732 .

Optionally, in order to ensure the reliability of the electrical connection between the power generation device 7, the wires and the electrical device 9, a first conductive member electrically connected to the first wire 731 is installed on the output shaft 51, and the shaft sleeve 42 is provided with a The second conductive member electrically connected with the two wires 732, the first conductive member can rotate relative to the second conductive member and is always electrically connected with the second conductive member. Wherein, the first conductive member and the second conductive member form a conductive bearing 74 or a conductive slip ring. In this way, when there is relative rotation between the pulsator mechanism 4 and the output shaft 51 , the electrical connection between the power generating device 7 , the wires and the power consumption device 9 can also be reliably performed.

Of course, the installation position of the electric device 9 is not limited to around the pulsator cover 43, the electric device 9 can also be arranged on the pulsator plate 41, and correspondingly, the pulsator plate 41 needs to be provided with an electric device 9 for connection. The fifth wire hole through which the wire of the power generating device 7 passes, for example, the electrical device 9 can be arranged at the rib on the pulsator plate 41, and the fifth wire hole can be arranged on the rib.

In some examples, the electrical device 9 can also be arranged on the lint filter, and the lint filter includes a filter screen and a frame for installing the filter screen, and the electrical device 9 can be arranged on the frame. Wherein, the lint filter can be arranged on the side wall of the inner cylinder 3 , or, the lint filter can also be arranged at the bottom of the inner cylinder 3 , for example, it is arranged at the water outlet of the inner cylinder 3 .

In some examples, the electrical device 9 can also be arranged on the balance ring. When there is one electrical device 9, the center of gravity of the electrical device 9 needs to coincide with the center of gravity of the balance ring; when there are multiple electrical devices 9, Multiple electric devices 9 need to be evenly distributed on the gimbal, so that the center of gravity of the gimbal remains unchanged, so as to ensure the reliability of the gimbal. Wherein, the balance ring can be arranged on the top of the inner tube 3 .

Optionally, the bottom wall of the outer cylinder 1 is recessed toward the top to form a mounting groove, and the magnet 71 and the coil 72 are accommodated in the mounting groove. The output shaft 51 is installed in the installation groove, and the seal between the output shaft 51 and the outer cylinder 1 is sealed to ensure the reliability of sealing and waterproofing the power generation device 7; wherein, the seal can be a sealed bearing or the like.

The outer cover of the magnet 71 is provided with a casing, the casing is fixed on the inner surface of the outer cylinder 1, the output shaft 51 is penetrated in the casing, and the output shaft 51 and the casing are sealed by a seal to ensure the reliability of sealing and waterproofing the power generation device 7; Wherein, the sealing member may be a sealed bearing or the like.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (17)

1. A washing machine, characterized in that, comprising: Outer cylinder; The inner cylinder is rotatably arranged in the outer cylinder, and the inner cylinder has an opening for putting clothes in; a driving mechanism, the output shaft of which passes through the outer cylinder and is in transmission connection with the inner cylinder, so as to drive the inner cylinder to rotate along a rotation axis; a magnet fixed on the outer cylinder to form a magnetic field around the output shaft; a coil installed on the output shaft, the coil is used to rotate in the magnetic field driven by the output shaft to generate an induced current; An electric device is arranged in the inner cylinder and connected to the coil for power supply; The pulsator mechanism is arranged in the inner cylinder, and the pulsator mechanism is connected with the output shaft of the driving mechanism to drive the pulsator mechanism to rotate relative to the inner cylinder; The pulsator mechanism includes a pulsator disc, and the pulsator disc is provided with a through hole penetrating in the axial direction of the output shaft of the drive mechanism, and a shaft sleeve and a pulsator cover are respectively installed at both ends of the through hole; The sleeve is connected with the output shaft of the drive mechanism; The electrical device is electrically connected to the coil through a wire; the wire includes a first wire, the output shaft is a hollow shaft, and the first wire is passed through the hollow shaft; The shaft sleeve is provided with a second wire passing hole extending along its axial direction, and the wire further includes a second wire passing through the second wire passing hole. 2. The washing machine according to claim 1, characterized in that, the rotation axis is arranged horizontally or there is an acute angle between the rotation axis and the horizontal plane. 3. The washing machine according to claim 1, wherein the rotation axis is arranged vertically. 4 . The washing machine according to claim 1 , wherein the electrical device includes an indicator installed on the inner tub, and the indicator is used to provide a visual or audible indication signal to the user. 5. The washing machine of claim 4, wherein the indicator comprises a light. 6 . The washing machine according to claim 5 , wherein there are multiple indicator lights, and the plurality of indicator lights include at least two colors. 7. The washing machine according to claim 6, wherein the indicator further comprises a controller, the controller is connected to the coil for power supply, and the controller is used to control the opening and closing of the indicator light. 8 . The washing machine according to claim 7 , wherein there are multiple indicator lights, and the controller is used to control the on-off time and the on-off frequency of the plurality of indicator lights. 9 . The washing machine according to claim 1 , wherein the magnet is disc-shaped, and the magnet and the coil are arranged opposite to each other along the axial direction of the output shaft with an air gap formed therebetween. 10. The washing machine according to claim 1, characterized in that, the indicator light in the electrical device is set on the pulsator mechanism. 11 . The washing machine according to claim 10 , wherein the seal between the pulsator cover and the pulsator plate is sealed; and the indicator light is arranged in the through hole. 12. The washing machine according to claim 11, characterized in that, a first conductive member electrically connected to the first wire is installed on the output shaft, and a conductive member electrically connected to the second wire is provided on the sleeve. The second conductive part, the first conductive part can rotate relative to the second conductive part and is always electrically connected with the second conductive part. 13. The washing machine according to claim 12, wherein the first conductive member and the second conductive member form a conductive bearing or a conductive slip ring. 14. The washing machine according to claim 1, characterized in that a lint filter is provided on the side wall of the inner tub or the bottom end of the inner tub, and the electrical device is installed on the lint filter. 15. The washing machine according to claim 1, characterized in that there are multiple indicator lights in the electrical device; a balance ring is installed on the top or bottom of the inner cylinder, and the plurality of indicator lights are evenly arranged on on the balance ring. 16. The washing machine according to claim 1, characterized in that, the bottom wall of the outer cylinder is recessed toward the top to form a mounting groove, the magnet and the coil are accommodated in the mounting groove; the output shaft passes through the The installation groove, and the seal between the output shaft and the outer cylinder is sealed. 17. The washing machine according to claim 1, wherein the magnet cover is provided with a casing, the casing is fixed on the inner surface of the outer cylinder, the output shaft is passed through the casing, and the The seal between the output shaft and the housing is sealed.

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