CN111663287A - washing machine - Google Patents

Abstract

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

Description

washing machine

technical field

The invention belongs to the technical field of electrical 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 and the like. With the development of the washing machine industry, consumers have higher and higher requirements for washing machine functions.

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 arranged at the top of the box body, and a main circuit board is arranged on the control panel seat and is connected with the main circuit. A mechanical button or a touch panel for the communication connection of the board; sometimes an electrical device such as an indicator light is set in the inner cylinder. During assembly, the electrical device disposed in the inner cylinder needs to be electrically connected to the main circuit board through wires, so that the electrical device can be powered by the main circuit board. However, during the actual assembly, it was found that since the inner cylinder will rotate relative to the outer cylinder during operation, part of the wires drawn from the main circuit board will rotate with the inner cylinder. Broken or broken.

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

SUMMARY OF THE INVENTION

In order to solve the above or other potential problems in the prior art, the present invention provides a washing machine, comprising: an outer tub; an inner tub, which is rotatably arranged in the outer tub, and the inner tub has a opening; a driving mechanism, the output shaft of which passes through the outer cylinder and is drive-connected with the inner cylinder to drive the inner cylinder to rotate along a rotation axis; a magnet is fixed on the outer cylinder to drive the inner cylinder to rotate 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 under the driving of the output shaft to generate an induced current; an electrical device is arranged in the inner cylinder , and is connected to the coil for power supply.

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

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

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

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

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

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

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

In a preferred technical solution of the above washing machine, the washing machine further includes a pulsator mechanism disposed in the inner tub, and the pulsator mechanism is drivingly connected with the output shaft of the driving mechanism to drive the pulsator mechanism to face each other. rotate in the inner cylinder.

In the preferred technical solution of the above washing machine, the indicator light in the electric device is arranged on the pulsator mechanism.

In a preferred technical solution of the above washing machine, 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 driving mechanism, and shafts are respectively installed at both ends of the through hole. a sleeve and a pulsator cover; the shaft sleeve is connected with the output shaft of the driving mechanism; the pulsator cover and the pulsator disc are sealed; the indicator light is arranged in the through hole.

In the preferred technical solution of the above 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 shaft inside the shaft.

In the preferred technical solution of the above washing machine, the shaft sleeve is provided with a second wire hole extending along the axial direction thereof, the wire further includes a second wire, and the second wire passes through the second wire in the wire hole.

In a preferred technical solution of the above washing machine, a first conductive member electrically connected to the first wire is installed on the output shaft, and a second conductive member electrically connected to the second wire is installed on the shaft sleeve, The first conductive member is rotatable relative to the second conductive member and is always electrically connected to the second conductive member.

In the 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 provided 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 a plurality of indicator lights in the electric device; a gimbal ring is installed on the top of the inner cylinder, and a plurality of the indicator lights are evenly arranged on the gimbal ring.

It can be understood by those skilled in the art that the washing machine of the present invention includes: an outer tub, an inner tub, a driving mechanism, a magnet, a coil and an electrical device; wherein, the magnet is fixed on the outer tub so as to be at the position of the output shaft. A magnetic field is formed around, and the coil is installed on the output shaft to rotate in the magnetic field under the driving of the output shaft to generate an induced current and supply it to an electrical device provided 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 to 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 performance. its service life. In addition, by utilizing the rotational motion of the driving mechanism itself to generate electrical energy and supply it to the electrical 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 is:

Fig. 1 is the partial structure schematic diagram 1 of the washing machine of the embodiment of the present invention;

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

3 is a second partial structural schematic diagram of a washing machine according to an embodiment of the present invention;

FIG. 4 is a second partial structural schematic diagram 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; 9-electricity device.

Detailed ways

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

Secondly, it should be noted that, in the description of the present invention, the terms "inside", "outside", "top", "bottom", etc. indicate the direction or positional relationship based on the direction or positional relationship shown in the accompanying drawings , which is only for the convenience of description, rather than indicating or implying that the device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

In addition, it should also be noted that, in the description of the present invention, unless otherwise expressly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of the two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The preferred technical solutions of the washing machine according to the embodiment of the present invention are described below.

Refer first to FIGS. 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 driving mechanism 5 , a power generating device 7 and a power consuming device 9 . In addition, the washing machine generally also includes a general box body and a control panel base. 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 the bottom end, and the end opposite to the bottom end is the top end of the washing machine.

The box body of the washing machine can be in the shape of a cuboid, and the top of the box body can be provided with an opening. The box body is provided with an outer cylinder 1; the inner cylinder 3 is installed into the outer cylinder 1 through the opening at the top of the outer cylinder 1 and can be rotated 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 front-loading washing machine, the rotating shaft of the inner tub 3 can be set horizontally or have an acute angle with the horizontal plane, that is, the rotating shaft 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, which is helpful for picking and placing clothes; when the washing machine is a pulsator type washing machine, the rotation axis of the inner cylinder 3 is set vertically, that is, the inner cylinder 3 is arranged vertically. The rotating shaft may extend vertically 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 a cover body that can open and close the opening of the inner cylinder 3 is provided on the control panel seat. The control panel seat is provided with function keys, which can be electrically connected to 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, touch keys; control panel A display area may 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 the drum-type washing machine, a driving mechanism is provided between the outer tub 1 and the box, and the driving mechanism is electrically connected to the main circuit board, so that the main circuit board controls the driving mechanism to drive the inner tub to rotate so as to clean and dry the clothes. .

For the pulsator type washing machine, the bottom end of the inner tub 3 is further provided with a pulsator mechanism 4 , 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 provided between the outer cylinder 1 and the box of the pulsator-type washing machine, and the driving mechanism 5 is electrically connected to the main circuit board, so as to control the driving motor 52 to drive the pulsator mechanism 4 through the main circuit board. It rotates to clean the clothes, and at the same time, the main circuit board can control the driving mechanism 5 to drive the inner cylinder 3 to rotate to realize the cleaning and drying of the clothes.

Of course, the structure of the washing machine is not limited to this, and the present embodiment is only exemplified here. For the structure and implementation process of the washing machine, the parts that are not described in this embodiment may adopt conventional choices in the art. The following may take a pulsator washing machine as an example to illustrate the structure and implementation process of the washing machine of this embodiment. It can be understood that when the washing machine is another type of washing machine such as a drum type, the implementation process thereof may be similar to that described in this embodiment.

In some examples, the driving mechanism 5 may include a driving motor 52 , and the output shaft 51 of the driving motor 52 is connected to the pulsator mechanism 4 and the inner cylinder 3 ; at this time, the output shaft of the driving motor 52 is also the output shaft 51 of the driving mechanism 5 . . In other examples, the drive mechanism 5 includes a drive motor 52 and a reducer 53, the reducer 53 is provided at the output end of the drive motor 52, and the output shaft of the reducer 53 is connected to 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 power generating device 7 may include a coil 72 and a magnet 71 . The coil 72 (ie, the rotor) can be disposed on the output shaft 51 of the driving mechanism 5; for example, the coil 72 can include an iron core sleeved on the output shaft 51 of the driving motor 52, and a single turn can be wound around the iron core Or multiple turns of wire. The magnet 71 (ie, the stator) can be disposed on the outer cylinder 1 , and the magnet 71 can form a magnetic field around the output shaft 51 for the coil 72 to cut; wherein the magnet 71 can be a permanent magnet 71 .

In this example, when the driving mechanism 5 drives the pulsator mechanism 4 or the inner cylinder 3 to rotate, it can also drive 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 electrical device 9 disposed on the inner cylinder 3 and electrically connected to the coil 72 , so as to provide the electrical energy to the electrical device 9 .

In one of the alternative implementations, the coil 72 may be provided on the portion of the output shaft 51 between the inner cylinder 3 and the outer cylinder 1 ; the magnet 71 may be provided on the inner surface of the outer cylinder 1 . Wherein, the magnet 71 may include a ring magnet which is arranged 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, the rectifier may be connected between the coil 72 and the electrical equipment, and the rectifier may be used to convert the alternating current output from the coil 72 into direct current. Of course, the structure of the power generating device 7 is not limited to this, and the present embodiment is only exemplified here, as long as it can generate electrical energy that can be provided to the electrical device 9 with the rotation of the output shaft 51 of the driving mechanism 5 .

In another optional implementation manner, 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 driving mechanism 5 , the magnet 71 can be fixed on the inner surface of the outer cylinder 1 , and the magnet 71 is formed The magnetic field has magnetic lines of induction along the axial direction of the output shaft 51; the coil 72 is sleeved on the output shaft 51 of the drive mechanism 5, and the coil 72 is fixed to the output shaft 51, 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 generation device 7 is relatively simple, and under the condition of ensuring the power generation efficiency, it is lighter and thinner, has a smaller volume, occupies less space, and has lower requirements for 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 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 shell can be provided on the inner cylinder 3 at a position corresponding to the direction of the wire. , the wire can be arranged in the space enclosed by the protective shell and the side wall of the inner cylinder 3; wherein, the inlet end of the protective shell for the wire to enter and the outlet end close to the electrical device 9, the inlet end and the outlet 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 at the bottom end of the side wall of the inner cylinder 3 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 generation device 7 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, the coil 72 is driven to rotate by the output shaft 51, and the magnetic field lines are cut in the magnetic field formed by the magnet 71, so as to be arranged in the inner cylinder The electrical device 9 in 3 provides electrical energy. In this way, the wire connected to the output end of the coil 72 can pass through the output shaft 51 of the driving mechanism 5 and be electrically connected to the electrical device 9 provided in the inner cylinder 3, thereby preventing 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 wiring path of the wires can also be shortened. In addition, by utilizing the rotational motion of the driving mechanism 5 itself to generate electrical energy and supply it to the electrical device 9, it also contributes to energy saving.

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

In some examples, the indicator may include an indicator light (eg, incandescent or LED light) for providing a visual indication 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 wire connecting the indicator light and the power generating device 7 . Wherein, there may be one or more indicator lights; when there are multiple indicator lights, the colors when the plurality of indicator lights are on may include at least two, so as to improve user experience. 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 generating device meet the power requirement of the indicator light.

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

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

In addition, the electrical device may further include an ultraviolet lamp to sterilize the clothes.

In one of the optional embodiments, the pulsator mechanism 4 of the washing machine may include a pulsator disc 41 , the middle of the pulsator disc 41 is provided with a through hole penetrating along the axial direction of the output shaft 51 , and the bottom end of the through hole is provided with 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 to prevent the water in the inner cylinder 3 from passing from the pulsator cover 43 . Leakage with the wave roulette 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 reciprocates with the driving mechanism 5, the pulsator disc 41 will turn the agitated clothes up and down in the water, And through the friction with the ribs set on the pulsator disc 41, and at the same time through the action of the detergent, the dirt on the clothes is cleaned.

As shown in FIG. 3 and FIG. 4 , the electrical device 9 can be disposed on the pulsator mechanism 4 to further simplify the routing path of the wires connecting the electrical device 9 and the power generating 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 wires drawn from the electrical device 9 can pass through the pulsator cover 43 and through the output of the driving mechanism 5 The shaft 51 is electrically connected to the power generating device 7; wherein, since the sensor can be fixed on the pulsator cover 43 and rotate together with the pulsator mechanism 4, that is, the electrical device 9 can move synchronously with the pulsator mechanism 4, so the wire and the pulsator Sealing members such as a sealing ring, a sealant, etc. may be arranged between the third wire holes on the cover 43 to ensure the reliability of sealing and waterproofing of the electrical device 9 and the power generating device 7 . When the electric device 9 is an indicator light, the indicator light can be arranged in the space enclosed 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 of the pulsator disc 41 to ensure correct use Reliability of waterproofing of the electric device 9 and the power generation device 7 . It is easy to understand that in this example, the pulsator cover 43 may 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 wire 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 hole extending along its radial direction, and the first wire hole communicates with the central hole of the output shaft 51, so that the power generation device 7 The drawn first wire 731 enters the first wire hole of the output shaft 51 from the first wire 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; The axially extending second wire hole, the second wire 732 drawn from the electrical device 9 can be passed through the second wire hole, correspondingly, the output shaft 51 is also provided with a fourth wire hole, the first wire The wire 731 can pass through the fourth wire hole to be electrically connected to the second wire 732 .

Optionally, in order to ensure the reliability of the electrical connection between the power generating device 7, the wire and the power-consuming device 9, the output shaft 51 is provided with a first conductive member that is electrically connected to the first wire 731, and the shaft sleeve 42 is provided with a first conductive member electrically connected to the first wire 731. The second conductive member is electrically connected with the two wires 732. The first conductive member can rotate relative to the second conductive member and is always electrically connected to 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, even when there is relative rotation between the pulsator mechanism 4 and the output shaft 51 , the power generating device 7 , the lead wires and the power consumption device 9 can also be reliably electrically connected.

Of course, the setting position of the electric device 9 is not limited to the surrounding of the pulsator cover 43 , the electric device 9 can also be arranged on the pulsator plate 41 , correspondingly, the pulsator plate 41 needs to be provided with an electric device 9 available for connection The fifth wire hole passing through the wire of the power generating device 7, for example, the power consumption device 9 may be provided at the rib on the pulsator disk 41, and the fifth wire hole may be provided on the rib.

In some examples, the electrical device 9 may also be arranged on a lint filter, the lint filter includes a filter screen and a frame for installing the filter screen, and the electrical device 9 may be arranged on the frame. The lint filter may be arranged on the side wall of the inner cylinder 3 , or the lint filter may also be arranged at the bottom end of the inner cylinder 3 , for example, at the drain port of the inner cylinder 3 .

In some examples, the electrical device 9 may also be arranged on the gimbal. 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 gimbal; when there are multiple electrical devices 9, the The plurality of electrical 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 at the top end of the inner cylinder 3 .

Optionally, the bottom wall of the outer cylinder 1 is recessed toward the top to form an installation groove, and the magnet 71 and the coil 72 are accommodated in the installation groove. The output shaft 51 passes through the installation groove, and the output shaft 51 and the outer cylinder 1 are sealed by a sealing member to ensure the reliability of sealing and waterproofing of the power generating device 7; wherein, the sealing member can be a sealing 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 the power generation device 7 being sealed and waterproof; 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, but not to limit 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: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (10)

1. A washing machine, characterized in that, comprising: outer cylinder; an inner cylinder, which is rotatably arranged in the outer cylinder, and the inner cylinder has an opening for throwing clothes; a driving mechanism, the output shaft of which passes through the outer cylinder and is drive-connected 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 mounted on the output shaft, the coil is used to rotate in the magnetic field under the driving of the output shaft to generate an induced current; An electrical device is arranged in the inner cylinder and is connected to the coil for power supply. 2 . The washing machine according to claim 1 , wherein the rotation axis is arranged horizontally or there is an acute angle between the rotation axis and the horizontal plane; 3 . Alternatively, the axis of rotation is arranged vertically. 3 . The washing machine according to claim 1 , wherein the electrical device comprises an indicator mounted on the inner tub, and the indicator is used to provide a user with a visual or audible indication signal. 4 . 4. The washing machine of claim 3, wherein the indicator comprises an indicator light. 5 . The washing machine according to claim 4 , wherein there are a plurality of the indicator lights, and the plurality of the indicator lights include at least two colors. 6 . 6 . The washing machine according to claim 1 , wherein the magnet is in the shape of a disk, and the magnet and the coil are disposed opposite to each other along the axis direction of the output shaft with an air gap formed therebetween. 7 . 7 . The washing machine according to claim 1 , wherein the washing machine further comprises a pulsator mechanism arranged in the inner tub, the pulsator mechanism is drivingly connected with the output shaft of the driving mechanism to drive the pulsator mechanism. 8 . the pulsator mechanism rotates relative to the inner cylinder; The indicator light in the electric device is arranged on the pulsator mechanism. 8 . The washing machine according to claim 7 , wherein the pulsator mechanism comprises a pulsator disc, and the pulsator disc is provided with a through hole penetrating along the axial direction of the output shaft of the driving mechanism, and the through hole A shaft sleeve and a pulsator cover are respectively installed at both ends; the shaft sleeve is connected with the output shaft of the driving mechanism; the pulsator cover and the pulsator disc are sealed; the indicator light is arranged on the inside the hole; 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 hole extending along its axial direction, the wire further includes a second wire, and the second wire passes through the second wire hole. 9 . The washing machine according to claim 8 , wherein a first conductive member electrically connected to the first wire is mounted on the output shaft, and the shaft sleeve is provided to be electrically connected to the second wire. 10 . the second conductive member, the first conductive member can rotate relative to the second conductive member and is always electrically connected with the second conductive member; The first conductive member and the second conductive member form a conductive bearing or a conductive slip ring. 10 . The washing machine according to claim 1 , wherein a lint filter is provided on the side wall of the inner cylinder or the bottom end of the inner cylinder, and the electric device is installed on the lint filter; 10 . Or, there are a plurality of indicator lights in the electric device; a gimbal ring is installed on the top or bottom of the inner cylinder, and a plurality of the indicator lights are evenly arranged on the gimbal ring; Or, the bottom wall of the outer cylinder is recessed toward the top to form an installation groove, and the magnet and the coil are accommodated in the installation groove; the output shaft passes through the installation groove, and the output shaft and the The outer cylinders are sealed by seals.

Images