CN113123081A

CN113123081A - Balancing assembly and household appliance

Info

Publication number: CN113123081A
Application number: CN201911422157.2A
Authority: CN
Inventors: 张肃; 王跃辉; 沈靖皓
Original assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-16
Anticipated expiration: 2039-12-31
Also published as: CN113123081B

Abstract

The invention provides a balancing assembly and a household appliance, wherein the balancing assembly comprises a balancing ring and a balancer, the balancing ring is used for being installed in a cavity of the household appliance, a cavity is arranged in the balancing ring, the balancer can be movably located in the cavity, the balancer comprises a first wireless charging assembly and a battery, the battery is connected with the first wireless charging assembly, and the first wireless charging assembly is used for receiving charging energy wirelessly transmitted by a second wireless charging assembly of the household appliance and charging the battery by utilizing the charging energy. In the balancing assembly, the first wireless charging assembly of the balancer in the balancing ring can receive charging energy in a wireless transmission mode and charge a battery, so that electric transmission can be avoided in a brush mode, and the sealing performance of the balancing ring and the reliability of electric transmission can be improved.

Description

Balancing assembly and household appliance

Technical Field

The invention relates to the technical field of household appliances, in particular to a balance assembly and a household appliance.

Background

At present, in the dehydration stage of a washing machine, washings in a washing cavity are unevenly distributed, and the eccentricity condition exists. When the washing chamber rotates at a high speed, a large vibration is generated. In the related art, a balance ring is arranged on a washing cavity, and a balance trolley capable of moving is arranged in the balance ring. By controlling the movement of the balance trolley in the balance ring, the eccentricity of clothes in the washing cavity is balanced by the self gravity and the centripetal force of the balance trolley, so that the vibration of the washing cavity tends to be reduced, and the noise and the vibration of the washing machine are further reduced.

In the related art, the circuit of the balance car is connected to the bearing of the washing cavity through a wire, and the electric connection between the circuit of the balance car and the circuit of the control system is realized by using an electric brush. However, the use of brushes to achieve electrical connections has the problems of inadequate brush fatigue life, as well as brush transmission discontinuities and the need for higher sealing structures.

Disclosure of Invention

The embodiment of the invention provides a balance assembly and a household appliance.

The balancing assembly comprises a balancing ring and a balancer, wherein the balancing ring is used for being installed in a cavity of a household appliance, a cavity is formed in the balancing ring, the balancer is movably located in the cavity, the balancer comprises a first wireless charging assembly and a battery, the battery is connected with the first wireless charging assembly, and the first wireless charging assembly is used for receiving charging energy wirelessly transmitted by a second wireless charging assembly of the household appliance and charging the battery by using the charging energy.

In the balancing assembly, the first wireless charging assembly of the balancer in the balancing ring can receive charging energy in a wireless transmission mode and charge a battery, so that electric transmission can be avoided in a brush mode, and the sealing performance of the balancing ring and the reliability of electric transmission can be improved.

In some embodiments, the balancer includes a bracket and a battery compartment, the battery compartment is mounted to the bracket, the battery is received in the battery compartment, and the first wireless charging assembly includes a first coil mounted to an outer surface of the battery compartment. In this way, the balancer can be charged and controlled to be located at different positions by the action of the first coil.

In some embodiments, the cavity has an axis of rotation, the chamber includes a side perpendicular to the axis of rotation, and the first coil is disposed toward the side. Therefore, the first coil is provided with the charging energy which is beneficial to the first wireless charging assembly to better receive the charging energy transmitted by the second wireless charging assembly towards the side surface perpendicular to the rotating axis.

In some embodiments, the balancer includes a driving assembly including a driving member and a rotating member, the driving member connecting the rotating member and the battery, the driving member driving the rotating member to rotate to move the balancer in the chamber. Therefore, the balancer is driven to move by the driving assembly, and the position of the balancer in the cavity can be changed to reduce the vibration of the household appliance.

In some embodiments, a ring gear portion is provided within the chamber, and the rotating member includes a gear that meshes with the ring gear portion. Therefore, the balancer is driven to move by the meshing of the gear and the ring gear, so that the balancer can be prevented from slipping in the moving process, and the moving stability of the balancer is ensured.

In certain embodiments, the drive assembly includes a speed adjustment structure connecting the drive member and the rotational member. Thus, the speed regulating structure can control the moving speed of the balancer and the moving direction of the balancer.

In some embodiments, the speed adjustment structure includes a first stage transmission structure connected to the output shaft of the driving member and a second stage transmission structure connected to the first stage transmission structure and the rotating member. In this way, the reduction ratio of the balancer can be realized by the two-stage transmission structure.

In some embodiments, the balancer includes a bracket and a first guide structure, and a second guide structure is disposed within the chamber, the first guide structure being mounted to the bracket and coupled to the second guide structure to guide movement of the balancer. In this way, the balancer can stably move in the cavity under the condition of high-speed movement by the guidance of the first guide structure and the second guide structure, and the balancer is prevented from being separated from the balance ring.

In certain embodiments, one of the first and second guide structures comprises a guide wheel and the other of the first and second guide structures comprises a guide rail, the guide wheel being coupled to the guide rail. Therefore, in the process of circular motion of the balancer, the guide wheel can slide along the guide rail, so that the stable motion of the balancer can be ensured, and the balancer is prevented from sliding off the balancing ring.

In some embodiments, the guide wheel comprises two guide wheels, the guide rail comprises two opposite side surfaces, and each guide wheel is movably connected with the side surface of the corresponding guide rail. In this way, the balancer can be stably moved in the chamber by the accurate connection of the guide wheels and the guide rails.

In some embodiments, the balancer includes a bearing structure on which the drive assembly is disposed, the bearing structure being in contact with an inner wall of the chamber and being adapted to move along the inner wall of the chamber during movement of the balancer to take on centrifugal forces as the balancer moves within the chamber. Therefore, the bearing structure can bear the centrifugal force of the balancer under the circumferential motion of the cavity, so that the balancer can move normally.

In some embodiments, the balancing assembly includes a marker and a displacement detector, the balancing assembly is configured to move the marker and the displacement detector relative to each other when the balancer is driven by the driving assembly to move in the cavity, and the displacement detector is configured to detect a number of times the marker passes the displacement detector, the number of times the marker passes the displacement detector being related to a position of the balancer. Thus, the displacement detecting member can detect the number of times the marker passes through the displacement detecting member, and can further acquire the moving distance of the balancer, so that the position of the balancer can be determined.

In some embodiments, the rotating member is provided with the identification member, or the inner wall of the chamber is provided with the identification member. Therefore, multiple detection modes for the identification piece can be provided, and the flexibility of the identification piece during installation is improved.

In some embodiments, the rotating member comprises a gear, the chamber inner wall is provided with a ring gear portion, the gear is engaged with the ring gear portion, and the indicator is a tooth of the gear or a tooth of the ring gear portion. Therefore, the teeth of the gear can be used as the identification piece, and the identification piece does not need to be additionally arranged.

The household appliance comprises a body, a cavity and the balance assembly in any embodiment, wherein the cavity is rotatably connected with the body, the balance ring is installed in the cavity, and the second wireless charging assembly is installed on the body.

In the household appliance, the first wireless charging assembly of the balancer in the balancing ring can receive charging energy in a wireless transmission mode and charge the battery, so that electric transmission can be avoided in a brush mode, and the sealing performance of the balancing ring and the reliability of power transmission can be improved.

Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of embodiments of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of a home appliance according to an embodiment of the present invention;

FIG. 2 is a perspective view of a balancer according to an embodiment of the present invention;

FIG. 3 is a block schematic diagram of a household appliance in accordance with an embodiment of the present invention;

FIG. 4 is an exploded schematic view of a gimbal according to an embodiment of the present invention;

FIG. 5 is an exploded schematic view of a balancing assembly according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a governor structure according to an embodiment of the present invention;

FIG. 7 is another exploded schematic view of a balancing assembly according to an embodiment of the present invention;

FIG. 8 is a schematic view of a portion of a balancing assembly according to an embodiment of the present invention;

FIG. 9 is a schematic structural view of a first guide structure according to an embodiment of the present invention;

FIG. 10 is a schematic structural view of a load bearing structure according to an embodiment of the present invention;

FIG. 11 is another structural schematic view of a load bearing structure according to an embodiment of the present invention;

FIG. 12 is another schematic structural view of a portion of a balancing assembly in accordance with an embodiment of the present invention;

fig. 13 and 14 are detection diagrams of the displacement detection member according to the embodiment of the present invention;

fig. 15 is a schematic view of the balancer of the embodiment of the present invention at an initial position;

FIG. 16 is a schematic view of the distribution of the correcting elements according to the embodiment of the invention;

FIG. 17 is a partially exploded schematic view of a chamber and gimbal in accordance with an embodiment of the present invention.

Description of the main element symbols:

a balance assembly 100;

the balance ring 10, the bearing ring 11, the chamber 12, the initial position 121, the inner wall 122, the end cover 13, the toothed ring part 14, the ring seat 15, the second guide structure 16 and the guide rail 162;

the balancer 20, the first wireless charging assembly 22, the first coil 222, the battery 24, the controller 26, the bracket 28, the control cabin 29, the first side 282, the second side 284, the battery cabin 21, the driving assembly 23, the driving member 232, the rotating shaft 231, the output shaft 2322, the rotating member 234, the gear 2342, the tooth 23422, the groove 23424, the speed regulating structure 236, the first-stage transmission structure 2362, the worm 23622, the worm wheel 23624, the second-stage transmission structure 2364, the first gear 23642, the second gear 23644, the speed regulating box 238, the first guide structure 25, the guide wheel 252, the base 254, the connecting frame 256, the elastic member 258, the guide column 251, the connecting rod 253, the bearing structure 27, the bearing plate 272, the mounting hole 2722, the rolling member 274, the bearing 2742, and the rotating shaft 2744;

the marker 30, the displacement detector 40, the corrector 50, and the correction detector 60;

the household appliance comprises a household appliance 1000, a cavity 200, a first end 202, a second end 204, a second wireless charging assembly 300, a body 400, a main controller 500, a fixing frame 600, a vibration damping structure 700 and a mounting plate 800.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The disclosure herein provides many different embodiments or examples for implementing different configurations of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1 to 3, an embodiment of the invention provides a balance assembly 100 for a household appliance 1000. The balancing assembly 100 includes a balancing ring 10 and a balancer 20. The balancing ring 10 is intended to be mounted in a cavity 200 of a household appliance 1000. A chamber 12 is provided within the gimbal ring 10, and a balancer 20 is movably positioned within the chamber 12. The balancer 20 includes a first wireless charging assembly 22 and a battery 24, the battery 24 being connected to the first wireless charging assembly 22. The first wireless charging assembly 22 is configured to receive charging energy wirelessly transmitted by the second wireless charging assembly 300 of the household appliance 1000 and charge the battery 24 with the charging energy.

In the above-described balancing assembly 100, the first wireless charging assembly 22 of the balancer 20 in the balancing ring 10 can receive charging energy by wireless transmission and charge the battery 24, so that electric transmission by means of brushes can be avoided, and the sealing performance and the reliability of electric transmission of the balancing ring 10 can be improved. Also, the balancer 20 itself is mounted with the first wireless charging assembly 22 and the battery 24, so that the balancer 20 can form a stand-alone power supply, which is not easily powered down by other factors.

It is understood that the home appliance 1000 includes the second wireless charging assembly 300, and the second wireless charging assembly 300 may transmit the charging energy to the first wireless charging assembly 22 of the balancer 20, and the first wireless charging assembly 22 charges the battery 24 using the received charging energy. In this manner, the batteries 24 in the balancer 20 are charged wirelessly to ensure the reliability of power transmission, thereby ensuring stable and normal operation of the balancer 20.

In an embodiment of the present invention, the home appliance 1000 includes a balancing assembly 100, a cavity 200, and a body 400. The cavity 200 is rotatably located within the body 400. The body 400 is provided with a second wireless charging assembly 300. The home appliance 1000 further includes a main controller 500, and the balancer 20 further includes a controller 26. The main controller 500 communicates with the controller 26 to transmit a current state signal and a movement signal of the balancer 20, etc. The main controller 500 and the controller 26 may be connected to communicate by wire or may be connected to communicate by wireless. The cavity 200 of the household appliance 1000 rotates at a high speed during operation, which may cause uneven distribution of load in the cavity 200 and eccentricity, thereby causing the household appliance 1000 to generate large vibration. The balance ring 10 is fixedly connected to the chamber 200 and rotates together with the chamber 200. Accordingly, the eccentric mass when the cavity 200 rotates can be offset by controlling the movement of the balancer 20 in the cavity 12 of the balance ring 10, thereby reducing the vibration of the home appliance 1000.

Referring to fig. 3, the main controller 500 is electrically connected to the second wireless charging device 300 and can control the second wireless charging device 300 to emit charging energy. Specifically, in the case that the battery 24 needs to be charged, the main controller 500 controls the second wireless charging assembly 300 to transmit an activation signal, the first wireless charging assembly 22 receives the activation signal and then transmits a charging signal to the second wireless charging assembly 300, the second wireless charging assembly 300 receives the charging signal and then transmits charging energy, and the first wireless charging assembly 22 charges the battery 24 by using the received charging energy. Thus, the accurate positioning of wireless charging is realized, and the problem of damage caused by the fact that the second wireless charging assembly 300 is in a continuous operation state without receiving the charging energy by a receiving end can be avoided.

In an example of the present invention, the master controller 500 and the controller 26 communicate wirelessly. Specifically, the main controller 500 may include a first wireless communication module and a wireless gateway. The controller 26 may include a second wireless communication module. The second wireless communication module, the first wireless communication module and the wireless gateway are used for forming a wireless communication network. The first wireless communication module and the second wireless communication module can be a WiFi module, a Bluetooth module, an NRF module, a ZigBee module or a mobile communication module (such as a 4G module, a 5G module and the like). Therefore, the first wireless communication module and the second wireless communication module have multiple choices and are highly replaceable. The selection of the wireless gateway is adapted to the type of the first wireless communication module and the second wireless communication module. The following is an exemplary illustration of the master controller 500 and the controller 26 communicating over a wireless communication network.

Referring to fig. 4, the balance ring 10 includes a carrier ring 11, an end cap 13, a ring gear portion 14, and a ring seat 15. The ring seat 15 and the carrier ring 11 together form the chamber 12, the carrier ring 11 forming the inner wall of the chamber 12. The number of the ring gear portions 14 may be two, and the ring gear portions are respectively installed at both ends of the carrier ring 11. Because the balance ring 10 is annular, the balancer 20 may move circumferentially within the cavity 12 of the balance ring 10. It should be noted that the household appliance 1000 may be a laundry processing appliance such as a washing machine, a dryer, or other household appliances 1000 having the rotating cavity 200. The battery 24 may include a rechargeable battery 24.

In some embodiments, referring to fig. 2, the balancer 20 includes a bracket 28 and a battery compartment 21, and the battery compartment 21 is mounted to the bracket 28. The battery 24 is accommodated in the battery compartment 21, and the first wireless charging assembly 22 includes a first coil 222, and the first coil 222 is mounted on the outer surface of the battery compartment 21. In this way, the balancer 20 can be charged and the situation where the balancer 20 is located at different positions can be controlled by the action of the first coil 222.

Specifically, the bracket 28 may be made of a metal material, such as a thick stainless steel plate, for fixing the battery compartment 21 and other components of the balancer 20. In this way, the balancer 20 can be prevented from scattering of the components of the balancer 20 during operation, and the bracket 28 is not deformed during the entire operation of the balancer 20.

It is understood that the battery compartment 21 can be used for storing the battery 24, and the first wireless charging assembly 22 receives the charging energy transmitted by the second wireless charging assembly 300 to charge the battery 24. Specifically, the outer surface of the battery compartment 21 is provided with a first coil 222 of the first wireless charging assembly 22, and the first coil 222 is connected with the battery 24 in the battery compartment 21. The second wireless charging assembly 300 includes a second coil (not shown). The first coil 222 and the second coil are oppositely disposed. In the present invention, the first coil 222 can move with the movement of the balancer 20, and the position of the second coil is fixed, so that the planes of the first coil 222 and the second coil are oppositely arranged. The first coil 222 and the second coil may be electromagnetic coils. The second coil may transmit electromagnetic wave energy, which may power the first coil 222, and the first coil 222 may transmit a pulse signal upon receiving the electromagnetic wave energy transmitted by the second coil. Therefore, the second wireless charging assembly 300 transmits the activation signal, which may be that the second coil of the second wireless charging assembly 300 intermittently transmits electromagnetic wave energy (i.e., the transmission power is low) or continuously transmits electromagnetic wave energy for a preset time period, which is greater than or equal to a time period for one rotation of the balancer 20. The first wireless charging assembly 22 transmits the charging signal, which may be a pulse signal transmitted by the first coil 222 of the first wireless charging assembly 22. The second wireless charging component 300 transmits charging energy, which may be electromagnetic wave energy continuously transmitted by a second coil of the second wireless charging component 300 (i.e., the transmission power is higher).

In some embodiments, referring to fig. 5, the chamber body 200 has a rotation axis X, the chamber 12 includes a side 120 perpendicular to the rotation axis X, and the first coil 222 is disposed toward the side 120. As such, the first coil 222 is disposed toward the side 120 perpendicular to the rotation axis X to facilitate the first wireless charging assembly 22 to better receive the charging energy transmitted by the second wireless charging assembly 300.

Further, referring to fig. 5, the bracket 28 includes a first side 282 and a second side 284 which are opposite to each other, the first side 282 faces the rotation axis X, and the battery compartment 21 is mounted on the second side 284. In the illustrated embodiment, the battery compartment 21 is mounted to the right of the second side 284 along the length a-a of the balancer 20. In other embodiments, the battery compartment 21 may be mounted on the left side of the second side 284 or other positions, which are not specifically limited herein. The shape of the battery compartment 21 may be a rectangular parallelepiped, a cube, a prism, or a cylinder, and the shape of the battery compartment 21 is adapted to the shape of the battery 24, which is not limited herein.

In some embodiments, referring to fig. 6-8, the balancer 20 includes a driving assembly 23, and the driving assembly 23 includes a driving member 232 and a rotating member 234. The driving member 232 is connected to the rotating member 234 and the battery 24, and the driving member 232 is used for driving the rotating member 234 to rotate so as to drive the balancer 20 to move in the chamber 12. In this way, by moving the balancer 20 by the driving assembly 23, the position of the balancer 20 in the chamber 12 can be changed to reduce the vibration of the household appliance 1000.

It is to be understood that the balancer 20 includes a control cabin 29, a control board is built in the control cabin 29, and the controller 26 is provided to the control board. The control board is connected with the battery 24, and the driving member 232 is connected with the control board, so that the driving member 232 is connected with the battery 24 through the control board, and the battery 24 supplies power to the driving member 232 through the control board. The driving member 232 may include a motor for driving the rotation member 234 to rotate, thereby driving the balancer 20 to move in the cavity 12, so that the balancer 20 can rapidly reduce or offset the eccentric mass of the cavity 200, thereby reducing the vibration of the household appliance 1000. By controlling the forward rotation, reverse rotation, or stop rotation of the motor, the balancer 20 may be controlled to move or stop moving in a clockwise direction or a counterclockwise direction. In the illustrated embodiment, the control chamber 29 and the battery chamber 21 are respectively located at both ends of the balancer 20 in the circumferential direction of the chamber, so that the weight of the balancer 20 can be dispersed, and the balancer 20 can be moved more smoothly.

In some embodiments, referring to fig. 4 and 7, the race portion 14 is disposed within the chamber 12 and the rotating member 234 includes a gear 2342. The gear 2342 meshes with the race portion 14. In this way, the balancer 20 is driven to move by the engagement of the gear 2342 with the ring gear portion 14, so that the balancer 20 is prevented from slipping during movement, and the stability of movement of the balancer 20 is ensured.

In particular, the chamber 12 comprises an inner wall 122, the inner wall 122 being provided with a rim portion 14, the modulus of the rim portion 14 being 1 or 1.25. The gear 2342 of the rotating member 234 is rotated in mesh with the ring gear portion 14, so that the balancer 20 is moved relative to the ring gear portion 14 with the rotation of the gear 2342.

In some embodiments, referring to fig. 6, 7 and 8, the driving assembly 23 includes a speed regulating structure 236, and the speed regulating structure 236 connects the driving member 232 and the rotating member 234. In this manner, the speed of movement of the balancer 20 can be controlled by the speed regulating structure 236, and the direction of movement of the balancer 20 can be controlled.

It will be appreciated that the equalizer 20 includes a governor box 238 mounted to the second side 284 of the bracket 28, and the governor structure 236 may be located within the governor box 238. The governor 238 may be made of a firm, non-deformable thick steel plate, and the entire governor 238 is rectangular. In other embodiments, the gearbox 238 may also be a cube, prism, or cylinder. In the illustrated embodiment, the inner wall 122 is provided with two ring gear portions 14, and the rotating member 234 includes two gears 2342, the two gears 2342 being located on both sides of the transmission case 238 and meshing with the two ring gear portions 14, respectively. The speed regulating structure 236 can regulate the speed at which the driving member 232 drives the rotating member 234 to rotate, thereby regulating the moving speed of the balancer 20.

Further, referring to fig. 6, the speed adjusting structure 236 includes a first stage transmission structure 2362 and a second stage transmission structure 2364, the first stage transmission structure 2362 is connected to the output shaft 2322 of the driving member 232, and the second stage transmission structure 2364 is connected to the first stage transmission structure 2362 and the rotating member 234. In this manner, the reduction ratio of the balancer 20 can be realized by the two-stage transmission structure.

Specifically, the first stage gearing structure 2362 includes a worm 23622 and a worm gear 23624. The second stage gearing structure 2364 includes a first gear 23642 and a second gear 23644. The worm 23622 is connected with an output shaft 2322 of the driving member 232 and a worm wheel 23624, the worm wheel 23624 is fixedly connected with a first gear 23642, the first gear 23642 is meshed with a second gear 23644, the modulus of the first gear 23642 and the modulus of the second gear 23644 are both 0.5, the gear ratio is 1:3, and the second gear 23644 is connected with the rotating member 234. Thus, two-stage transmission is realized. The worm gear and worm 23622 also serve as a limit, and the balancer 20 can be stably held in the balancing ring 10 in the case where the driving member 232 does not operate. In one example, a two-stage transmission may achieve a balancer 20 reduction ratio of 75 or more.

It is understood that the first gear 23642 is fixedly attached to the worm gear 23624 and the second gear 23644 is in meshing engagement with the first gear 23642. Referring to fig. 7, the opposite sides of the second gear 23644 are connected to the rotating shaft 231, and the rotating shaft 231 is connected to the rotating member 234 to realize synchronous rotation. In the working process of the driving element 232, firstly, the driving element 232 drives the worm 23622 to rotate through the output shaft 2322, then the worm 23622 drives the worm wheel 23624 matched with the worm 23622 to rotate, so that the first-stage transmission is realized, then the worm wheel 23624 drives the first gear 23642, and then the first gear 23642 drives the second gear 23644, so that the second-stage transmission is realized. The second gear 23644 drives the rotation member 234 to rotate synchronously via the rotation shaft 231, thereby driving the balancer 20 to move in the chamber 12. The rotational shaft 231 may be a cylindrical shaft or a non-cylindrical shaft. In the illustrated embodiment, the rotating shaft 231 is a D-shaped shaft.

In some embodiments, referring to fig. 2, 8 and 9, the balancer 20 includes a bracket 28 and a first guide structure 25. A second guide structure 16 is provided within the chamber 12. The first guide structure 25 is mounted to the bracket 28 and is connected to the second guide structure 16 to guide the movement of the balancer 20. In this way, the balancer 20 can be stably moved in the chamber 12 by the guidance of the first guide structure 25 and the second guide structure 16, and the balancer 20 is prevented from being separated from the gimbal 10.

Specifically, referring to fig. 2, along the length direction a-a of the balancer 20, in the present embodiment, the number of the first guide structures 25 may be two, and the two first guide structures 25 are installed at both ends of the bracket 28 of the balancer 20. The first guide structure 25 may be mounted to the bracket 28 by a connection plate. In other embodiments, the number of the first guiding structures 25 may be other, and is not limited in detail. The movement of the balancer 20 is guided by the cooperation of the first guide structure 25 and the second guide structure 16, the first guide structure 25 is installed at both ends of the balancer 20, the second guide structure 16 is installed on the inner wall 122 of the chamber 12, and the first guide structure 25 and the second guide structure 16 cooperate with each other to guide the movement of the balancer 20. It is understood that in the case where the balancer 20 moves at a high speed, it is difficult in the related art to ensure stable movement of the balancer 20, and the balancer 20 may be separated from the gimbal 10 due to excessively high rotation speed. In the present embodiment, the connection of the first guide structure 25 to the second guide structure 16 enables the balancer 20 to maintain stable movement at any rotational speed.

In some embodiments, referring to fig. 8 and 9, one of the first guide structure 25 and the second guide structure 16 includes a guide wheel 252, and the other of the first guide structure 25 and the second guide structure 16 includes a guide rail 162, the guide wheel 252 being coupled to the guide rail 162. In this way, the guide wheels 252 may slide along the guide rails 162 during the circular movement of the balancer 20, thereby ensuring the stable movement of the balancer 20 and preventing the balancer 20 from slipping off the balancing ring 10.

Specifically, the guide wheels 252 include two guide wheels 252, the guide rails 162 include two opposite side surfaces, and each guide wheel 252 is movably connected to a corresponding side surface of one of the guide rails 162. In this manner, the balancer 20 can be stably moved in the chamber 12 by the accurate connection of the guide wheels 252 to the guide rails 162.

It is understood that the first guiding structure 25 includes two opposite guiding wheels 252, and the two guiding wheels 252 are integrally connected by a connecting rod 253 in a rotating manner, for example, by a bearing connection, or a sliding ball connection, and the connection is not limited in this respect. The connecting rod 253 is fixedly connected to the connecting frame 256 by metal welding, adhesive bonding, screwing with screws or snap-fit connection, which is not limited herein. The guide wheel 252 can rotate around the connecting rod 253 relative to the bracket 28, and the guide wheel 252 is elastically abutted with the guide rail 162, so that the balancer 20 can be prevented from shaking in the moving process. The guide wheels 252 may be slidably coupled with the sides of the guide rail 162, or rollably coupled. In other embodiments, the first guide structure may comprise a guide rail and the second guide structure 16 may comprise a guide wheel.

In other embodiments, the two guide wheels 252 are fixedly connected to the connecting rod 253 to form a single body, which is rotatably connected to the connecting frame 256 through a rotating shaft.

The rail 162 of the second guide structure 16 includes opposite sides, and the rail 162 is substantially trapezoidal in cross-section. The guide rails 162 cooperate with the guide wheels 252, and each guide wheel 252 cooperates with a side of the corresponding guide rail 162, so that the balancer 20 can stably move in the chamber 12. Further, the guide rail 162 is partially located in a space between the two guide wheels 252, and this certain space enables the guide wheels 252 to elastically abut against the guide rail 162, further ensuring stable movement of the balancer 20.

Further, the first guide structure 25 includes a base 254 and a connecting frame 256. The link 256 is elastically movably connected to the base 254, and the guide wheel 252 is mounted on the link 256. In this way, in the course of circular movement of the balancer 20, the guide wheels 252 are elastically abutted against the guide rails 162 by elastically movably connecting the base 254 to the connecting bracket 256, so that the balancer 20 can be stably moved.

More specifically, a resilient member 258 is disposed in the base 254, the resilient member 258 is connected to the connecting frame 256, and the resilient member 258 is used for providing a force to the connecting frame 256 to elastically abut the guide wheel 252 against the guide rail 162.

It will be appreciated that the connecting frame 256 is connected to the elastic member 258 by the guide posts 251. During the circular motion of the balancer 20, when the balancer 20 moves at a low speed, the guide wheel 252 and the guide rail 162 form excessive internal friction due to the principle of inertia, and the elastic member 258 may be used to provide an outward force to the connecting frame 256, so as to reduce the internal friction between the guide wheel 252 and the guide rail 162; when the balancer 20 moves at a high speed, the guide wheel 252 forms excessive external friction with the guide rail 162 due to the principle of inertia, and the elastic member 258 may be used to provide an inward force to the link frame 256, thereby reducing the external friction between the guide wheel 252 and the guide rail 162. In the case of a moderate movement of the balancer 20, the elastic member 258 may be used to provide a force to the link bracket 256, so that the guide wheel 252 and the guide rail 162 can be elastically abutted, thereby ensuring that the balancer 20 can be stably moved at any rotational speed.

In this embodiment, each first guide structure 25 may include two elastic members 258. In other embodiments, the number of the elastic members 258 of each first guiding structure 25 may be 1, 3 or other numbers, which are not limited herein. The elastic member 258 may be a spring, such as a coil spring, a leaf spring, a torsion bar spring, a gas spring, or a rubber spring, and the like, and is not particularly limited herein.

It should be noted that, in the embodiment of the present invention, one of the first guiding structure 25 and the second guiding structure 16 includes the guiding wheel 252, and the other of the first guiding structure 25 and the second guiding structure 16 includes the guiding rail 162, which is not limited in this respect.

In some embodiments, referring to fig. 2, 7 and 10, the balancer 20 includes a bearing structure 27, and the driving assembly 23 is disposed on the bearing structure 27. The bearing structure 27 is in contact with the inner wall 122 of the chamber 12 and is adapted to move along the inner wall 122 of the chamber 12 to take up the centrifugal forces of the balancer 20 as it moves within the chamber 12 during movement of the balancer 20. In this manner, the bearing structure 27 can bear the centrifugal force of the balancer 20 under the circular motion of the chamber 200, thereby ensuring the normal movement of the balancer 20.

It can be understood that the whole bearing structure 27 is made of metal material, is firm and not easy to deform, can stably bear the whole driving assembly 23, and ensures the normal operation of the driving assembly 23. During movement of the balancer 20, the bearing structure 27 moves along the inner wall 122 of the chamber 12, and by contact with the inner wall 122 of the chamber 12, bears the centrifugal force of the balancer 20 under the circular motion of the chamber 200. In the present embodiment, the carrying structure 27 can ensure that the balancer 20 can be normally moved even in the case where the chamber 200 is rotated at a high speed of 800rpm or more.

Further, referring to fig. 10, the bearing structure 27 includes a bearing plate 272 and a rolling member 274. The roller 274 is rotatably coupled to the carrier plate 272 and contacts the inner wall 122 of the housing 12, and the drive assembly 23 is mounted on the carrier plate 272.

It will be appreciated that the carrier plate 272 may be made from a thick stainless steel plate, with two rolling elements 274 provided at either end of the carrier plate 272. The rolling element 274 includes a bearing 2742 and a rotating shaft 2744, the rotating shaft 2744 penetrates through the bearing 2742, the rotating shaft 2744 is fixedly connected to the bearing plate 272, and the fixed connection mode may be a metal welding mode, an adhesive bonding mode, a screw connection mode or a snap connection mode, and is not limited specifically herein. During movement of the rotatable member 234 by the drive member 232 to move the balancer 20, the bearing 2742 moves circumferentially relative to the shaft 2744, thereby sliding the bearing structure 27 within the chamber 12.

Further, mounting holes 2722 are also provided in the carrier plate 272, and the mounting holes 2722 are used to mount the carrier structure 27 to the balancer 20, for example, a fastener may be connected to the speed-adjusting case 238 through the mounting holes 2722 to mount the carrier structure 27 to the adjusting case 238. The mounting aperture 2722 may be circular, rectangular, oval, etc.

In other embodiments, referring to fig. 11, the supporting structure 27 may be an arc-shaped block with a certain curvature, such as a supporting structure made of a smooth material such as POM. The arcuate segments slide within the chamber 12 during movement of the equalizer 20 by the rotatable member 234 driven by the drive member 232.

In some embodiments, referring to fig. 12-16, the balance assembly 100 includes a flag 30 and a displacement detector 40. The balancing assembly 100 is configured such that the marker 30 and the displacement detecting member 40 are relatively moved in a case where the driving assembly 23 drives the balancer 20 to move in the chamber 12, the displacement detecting member 40 is used to detect the number of times the marker 30 passes the displacement detecting member 40, and the number of times the marker 30 passes the displacement detecting member 40 is related to the position of the balancer 20. In this way, the displacement detecting member 40 can detect the number of times the marker 30 passes the displacement detecting member 40, and thus can acquire the moving distance of the balancer 20, so that the position of the balancer 20 can be determined.

It is understood that, in the embodiment of the present invention, in the case where the balancer 20 moves in the chamber 12, the marker 30 and the displacement sensing member 40 relatively move to pass through the displacement sensing member 40, and the number of times the marker 30 passes through the displacement sensing member 40 is related to the position of the balancer 20. Therefore, the moving distance of the balancer 20 can be determined by detecting the number of times the identification member 30 passes the displacement detection member 40, and the position of the balancer 20 can be determined in combination with the initial position 121 of the balancer 20. The initial position 121 may refer to a position before the balancer 20 starts moving within the chamber 12 or a position that can be determined during movement of the balancer 20.

In some embodiments, the rotating member 234 is provided with the identifier 30, or the inner wall 122 of the chamber 12 is provided with the identifier 30. Thus, various detection modes for the identification member 30 can be provided, and the flexibility of the identification member 30 during installation is improved.

Further, referring to fig. 12, in the illustrated embodiment, the rotating member 234 is provided with the identification member 30. Specifically, the rotating member 234 includes a gear 2342. The chamber 12 comprises a first inner wall 122, the first inner wall 122 being provided with a rim portion 14. The gear 2342 meshes with the race portion 14. The identification member 30 is a tooth 23422 of the gear 2342 or a tooth of the ring gear portion 14. In this way, the teeth 23422 of the gear 2342 can be used as the identification member 30, and there is no need to provide an additional identification member 30. It will be appreciated that in other embodiments, the identifiers 30 may also be teeth of the rim portion 14.

Grooves 23424 are formed between the teeth 23422 of the gear 2342 or the ring gear portion 14, and the teeth 23422 and the grooves 23424 are evenly distributed in a staggered manner. The gear 2342 rotates in mesh with the rim portion 14, and when the gear 2342 rotates, the balancer 20 is moved relative to the rim portion 14. In this case, the teeth 23422 of the gear 2342 or the teeth of the ring gear portion 14 may serve as the identification member 30, and accordingly, the displacement detecting member 40 may be mounted to the balancer 20. The displacement detecting member 40 includes a detecting surface facing the marker 30. The teeth 23422 of the gear 2342 serve as the identification member 30, i.e., the rotating member 234 is provided with the identification member 30. The teeth of the ring gear portion 14 provided on the first inner wall 122 are used as the marker 30, i.e., the first inner wall 122 of the chamber 12 is provided with the marker 30. In other embodiments, the marker 30 may be disposed within the chamber 12 at a location other than the first interior wall 122.

Specifically, when the identification member 30 is the teeth 23422 of the gear 2342, the displacement sensing member 40 may be mounted on the balancer 20 at a position facing the teeth 23422 of the gear 2342. When the gear 2342 rotates, the displacement detecting member 40 is relatively immovable. When the identification member 30 is a tooth of the ring gear portion 14, the displacement detecting member 40 may be mounted on the balancer 20 at a position opposite to the tooth of the ring gear portion 14, and when the gear 2342 rotates, the balancer 20 moves to move the displacement detecting member 40 relative to the ring gear portion 14. During rotation of gear 2342, teeth 23422 of gear 2342 pass displacement sensing member 40 continuously, and therefore the number of times that teeth 23422 of gear 2342 pass displacement sensing member 40, that is, the number of teeth 2342 pass displacement sensing member 40, can be sensed.

In addition, the balancer 20 is driven to move by the engagement of the gear 2342 with the ring gear portion 14, so that the balancer 20 is prevented from slipping during movement, and the stability of movement of the balancer 20 is ensured.

In some embodiments, the displacement detecting member 40 includes at least one of a light sensor, a hall sensor, and an ultrasonic sensor. Thus, the displacement detecting member 40 is optional and low in cost.

Specifically, when the displacement detecting member 40 includes one kind of sensor, one of an optical sensor, a hall sensor, and an ultrasonic sensor may be selected. When the displacement detecting member 40 includes a plurality of kinds of sensors, two or more kinds of optical sensors, hall sensors, and ultrasonic sensors may be selected. The data detected by two or more sensors may be averaged to obtain the output data of the displacement detecting element 40, or the data may be subjected to calculation of different weights or ratios to obtain the output data of the displacement detecting element 40.

It will be appreciated that as technology has developed, the manufacturing process for light sensors, hall sensors, ultrasonic sensors, etc. has matured considerably, which allows sensors of the type described above to be smaller in size, and inexpensive to manufacture, capable of mass production, and suitable for use in a balanced assembly. The displacement detector 40 is a sensor of the type described above, and can perform the detection function of the marker 30 and reduce the manufacturing cost of the balancer assembly 100.

In the embodiment of fig. 13, the identification member 30 is a tooth 23422 of the gear 2342 and the displacement sensing member 40 is a photosensor that can emit and receive optical signals. Because the teeth 23422 and the grooves 23424 of the gear 2342 are different from the optical sensor in distance, the intensity of the optical signal reflected by the optical sensor receiving the teeth 23422 is different from the intensity of the optical signal reflected by the grooves 23424, regular pulse signals can be obtained through processing, the number of pulses is the number of teeth of the gear 2342, and therefore the moving distance of the balancer 20 can be obtained, and the position of the balancer 20 can be obtained by combining the initial position 121 of the balancer 20. The light sensor may be an infrared sensor. The principle of the ultrasonic sensor is similar to that of the optical sensor, and the description thereof is omitted.

In the embodiment of fig. 14, the identification member 30 is the teeth 23422 of the gear 2342 and the displacement sensing member 40 is a hall sensor. Since the teeth 23422 and the grooves 23424 affect the direction of the magnetic flux of the hall sensor, the density of the magnetic flux passing through the hall sensor is changed. When the gear 2342 rotates, the hall sensor outputs a regular pulse signal, and the number of teeth of the gear 2342 that rotates can be calculated from the pulse signal, whereby the moving distance of the balancer 20 can be obtained, and the position of the balancer 20 can be obtained in combination with the initial position 121 of the balancer 20.

In other embodiments, the marking member 30 may be a black and white stripe, and the displacement detecting member 40 may be a light sensor. The black and white stripes may be provided on the gear 2342, on a member which rotates coaxially with the gear 2342, or on the inner wall 122 of the chamber 12 forming an annular ring and arranged concentrically with the rim portion 14, and the light sensor may be mounted on the balancer 20 in a position facing the black and white stripes. Since the black stripes absorb light and the white stripes reflect light, and the black and white stripes pass through the photo sensor continuously in the moving process of the balancer 20, the number of times that the white stripes pass through the photo sensor, that is, the number of white stripes passing through the photo sensor can be detected. Regular pulse signals, i.e., the number of pulses by which the balancer 20 rotates past the white stripes, can be obtained from the light signals received by the light sensors. Since the widths of the white stripes and the black stripes are determined, the moving distance of the balancer 20 can be obtained, and the position of the balancer 20 can be obtained in combination with the initial position 121 of the balancer 20.

It should be noted that the identification member 30 may have other configurations, for example, the rotatable member 234 may be a wheel having a plurality of spaced spokes, and the identification member 30 may be a spoke of a wheel. The displacement detecting member 40 may detect the number of times the web bar passes the displacement detecting member 40. The specific detection principle is similar to the detection principle described above.

Referring to fig. 12 and 15, in some embodiments, the chamber 12 is provided with an initial position 121. The balancer 20 includes a controller 26, and the controller 26 is electrically connected to the displacement detecting member 40. The controller 26 is configured to determine the position of the balancer 20 based on the number of times the marker 30 passes the displacement sensing member 40 and the initial position 121. In this manner, the location of the balancer 20 is easily determined.

It will be appreciated that the initial position 121 of the balancer 20, in the absence of movement of the balancer 20, refers to a default position when the balancer 20 is stationary within the chamber 12. The controller 26 records an initial position 121, and determines the position of the balancer 20 in combination with the distance the balancer 20 has moved, in the case where the balancer 20 starts moving from the default position. Specifically, the displacement detector 40 may output regular pulse signals according to the number of times the identifier 30 passes through the displacement detector 40, the controller 26 receives the pulse signals output by the displacement detector 40, processes the pulse signals to obtain the moving distance of the balancer 20, and finally, in combination with the initial position 121 of the balancer 20, may calculate the specific position of the balancer 20. The balancer 20 may include a control board (not shown) to which the controller 26 may be provided. The specific location of the balancer 20 may be transmitted to the main controller 500 of the home appliance 1000 by a wired or wireless manner.

In an embodiment of the present invention, a plurality of initial positions 121 may be provided in the chamber 12. In the case where there are a plurality of balancers 20 in the chamber 12, one balancer 20 is stopped at each initial position 121. In one embodiment, two home positions 121 are provided in the chamber 12, and the number of balancers 20 is two. In the case where the two balancers 20 are not moved, each of the initial positions 121 is stationarily stopped with one balancer 20. Preferably, the two initial positions 121 are arranged in a degree-symmetrical manner. Thus, the balance ring 10 can be kept balanced without the balancer 20 moving.

In the embodiment of fig. 15, an initial position 121a and an initial position 121b are provided in the chamber 12. The home position 121a and the home position 121b each stop with one balancer 20. In other embodiments, the number of the initial positions 121 may be one, three or other numbers, and the specific positions may be set according to the requirement, and are not limited specifically herein.

Referring to fig. 2, 8 and 12, in some embodiments, the balancing assembly 100 includes a calibration member 50 and a calibration detecting member 60. The balancing assembly 100 is configured such that the correcting piece 50 and the correcting detecting piece 60 relatively move in a case where the balancer 20 moves, and the correcting detecting piece 60 detects the correcting piece 50 to eliminate a position error of the balancer 20. In this way, the calculation accuracy of the movement distance of the balancer 20 is improved.

It is understood that, since the balancer 20 moves for a long time, an accumulated error may occur when the displacement sensing member 40 senses information of the number of times the identification member 30 passes the displacement sensing member 40. Therefore, when the movement distance of the balancer 20 is calculated from the information of the number of times of error, an error occurs in the determined position of the balancer 20. Therefore, the position error of the balancer 20 can be eliminated by providing the correcting piece 50 and the correction detecting piece 60.

Specifically, as the calibration detecting member 60 passes each calibration member 50, information that it detects the calibration member 50 is transmitted to the controller 26. Further, the controller 26 sets the position of the balancer 20 to a value of 0, i.e., it regards the position as the origin to recalculate the moving distance of the balancer 20, so as to prevent the position of the balancer 20 from being accurately determined due to accumulated distance errors caused by long-time movement of the balancer 20. In this embodiment, after the calibration detecting member 60 passes through each calibration member 50, the information of the number of times that the displacement detecting member 40 passes through the identification member 30 is fed back to the controller 26 again from 0 by way of a pulse signal, the moving distance of the balancer 20 by the controller 26 is calculated again, and the precise position information of the balancer 20 in the gimbal 10 is obtained.

Referring to fig. 16, the plurality of calibration pieces 50 are distributed and spaced apart from an inner wall 122 of the chamber 12, such as the second inner wall 122, and each calibration piece 50 includes a different number of calibration portions. The correction detecting member 60 may be one of a light sensor, an ultrasonic sensor, and a hall sensor. The number of pulses of the pulse signal is the same as the number of the correction portions, so that it can be determined from the pulse signal output from the correction detection member 60 that the balancer 20 is passing through a certain correction member 50, thereby determining the specific position of the balancer 20 in the chamber 12. As such, the position of the balancer 20 may be positioned within the chamber 12. In one example, the inner wall 122 of the chamber 12 is provided with one correction piece 50 at intervals, and the number of the correction pieces is one, two, three or four.

In the case where the calibration detecting member 60 includes the photo sensor, the calibration member 50 may be disposed on the second inner wall 122, and the calibration portion may be a stripe between black and white. The light sensor may emit a light signal toward the second inner wall 122 and receive the light signal reflected on the second inner wall 122. In the case where the balancer 20 passes through the corrector 50, the light sensor passes through the stripes between black and white, so that the intensity of the received light signal varies, thereby outputting pulse signals corresponding to the number of correction parts, and the number of the correction parts passed through can be determined based on the pulse signals, thereby determining the current position of the balancer 20 based on the position of the corrector 50. In other embodiments, the correction portion may be a groove, or may be a protrusion. The pulse signals corresponding to the number of correction units are obtained according to the intensity of the optical signal received by the optical sensor, and the current position of the balancer 20 can be finally determined. The principle of the ultrasonic sensor is similar to that of the optical sensor, and the description thereof is omitted.

In the case where the correction detecting member 60 includes a hall sensor, the correcting portion may be a protrusion structure made of a metal material. It is understood that in the case where the balancer 20 passes through the corrector 50, the corrector 50 affects the direction of the magnetic lines of force of the hall sensors, changes the density of the magnetic lines of force passing through the hall sensors, causes the hall sensors to output pulse signals corresponding to the number of the corrector parts, and determines the number of the corrector parts passing therethrough based on the pulse signals, thereby determining the current position of the balancer 20 based on the position of the corrector 50.

The number and position of the correction pieces 50 and the number of correction portions of the correction pieces 50 may be adjusted according to the specific circumstances, and are not limited to the above embodiments.

Referring to fig. 1 and 2, a household appliance 1000 according to an embodiment of the present invention includes a body 400, a cavity 200, and a balancing assembly 100 according to any one of the above embodiments. The cavity 200 is rotatably connected to the body 400, the balance ring 10 is installed in the cavity 200, and the second wireless charging assembly 300 is installed in the body 400.

In the household appliance 1000, the first wireless charging assembly 22 of the balancer 20 in the balancing ring 10 can receive charging energy through wireless transmission and charge the battery 24, so that electric transmission by means of brushes can be avoided, and the sealing performance and the reliability of electric transmission of the balancing ring 10 can be improved.

It is understood that the household appliance 1000 may be a laundry treating appliance such as a washing machine, a dryer, or other household appliances 1000 having the rotatable cavity 200.

In the illustrated embodiment, the household appliance 1000 is a washing machine, which may be used to wash laundry, which is placed in the cavity 200. When the washing machine is in operation (e.g., a dehydration stage), the chamber 200 rotates at a high speed, and the laundry in the chamber 200 may be unevenly distributed and may be eccentric. When the chamber 200 is rotated at a high speed, the washing machine may generate a large vibration. The balance ring 10 is fixedly connected to the chamber 200 and rotates together with the chamber 200. Therefore, the eccentric mass of the chamber 200 when it rotates can be offset or reduced by the movement of the balancer 20 in the balancing ring 10, and thus the vibration of the washing machine can be reduced.

In case that the household appliance 1000 is a washing machine, the cavity 200 is a washing cavity 200 (inner tub), the body 400 may include a housing and a water containing cavity 201 (outer tub), the water containing cavity 201 and the washing cavity 200 are both cylindrical, the washing cavity 200 may be rotatably disposed in the water containing cavity 201, and the water containing cavity 201 and the washing cavity 200 may be disposed in the housing. The first wireless transceiver can be disposed in the water containing cavity 201 or in the housing. The washing chamber 200 may have a rotation axis disposed horizontally, obliquely or vertically. That is, the rotation axis of the washing chamber 200 is parallel to, inclined to, or perpendicular to the horizontal plane. It is understood that one or more balancing rings 10 may be disposed at any position of the washing chamber 200, and the balancing rings 10 rotate with the rotation of the washing chamber 200. The central axis of the balancing ring 10 is parallel to or coincides with the rotation axis of the washing chamber 200, that is, the balancing ring 10 may be disposed coaxially with the washing chamber 200 or eccentrically with respect to the washing chamber 200. The balancing ring 10 may also be arranged helically on the cavity 200.

Referring to fig. 17, the household appliance 1000 is a washing machine, and the cavity 200 includes a first end 202 and a second end 204 along the rotation axis X. The number of the balancing rings 10 may be two, and the two balancing rings are respectively connected to the first end 202 and the second end 204, and at least one balancer 20, for example, one or two or more balancers 20, is disposed in each balancing ring 10, and preferably, two balancers 20 are disposed in the balancing ring 10. In this manner, the eccentric mass of the cavity 200 is balanced by controlling the movement of the balancer 20 during the operation of the washing machine.

Specifically, the second end 204 of the cavity 200 is fixedly connected to the fixing frame 600, the fixing frame 600 may be connected to a rotating shaft (not shown), and the power device of the household appliance 1000 may be connected to the rotating shaft to drive the cavity 200 to rotate. In the illustrated embodiment, the first end 202 of the cavity 200 is a front end and the second end 204 is a rear end. The front end may refer to the end facing the user. In other embodiments, the first end 202 or the second end 204 of the cavity 200 is provided with the balancing ring 10, or the balancing ring 10 is provided between the first end 202 and the second end 204. In the illustrated embodiment, two balancers 20 are provided in the balancing ring 10. It should be noted that, in the present invention, the initial positions 121 of the two balancers 20 in the balancing ring 10 are symmetrically arranged, and the arrangement is such that the cavity 200 can be balanced in an unloaded state.

In addition, referring to fig. 1, in order to further reduce the transmission of the vibration inside the household appliance 1000 to the outside, the water containing cavity 201 may be connected to the mounting plate 800 through the vibration reduction structure 700, and the mounting plate 800 may be fixed to the housing bottom plate of the household appliance 1000. The vibration reduction structure 700 may employ springs, hydraulic pressure, or other structures to reduce the transmission of vibrations.

In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a balancing subassembly, is used for domestic appliance, balancing subassembly includes balancing ring and equalizer, the balancing ring is used for installing domestic appliance's cavity, be equipped with the cavity in the balancing ring, the equalizer can be located movably in the cavity, the equalizer includes first wireless charging subassembly and battery, the battery is connected first wireless charging subassembly, first wireless charging subassembly be used for receiving by the wireless transmission's of domestic appliance's the second wireless charging subassembly charging energy, and utilize charging energy is the battery charges.

2. The counterbalance assembly of claim 1, wherein the counterbalance comprises a cradle and a battery compartment, the battery compartment being mounted to the cradle, the battery being received in the battery compartment, the first wireless charging assembly including a first coil mounted to an outer surface of the battery compartment.

3. The counterbalance assembly of claim 2, wherein the cavity has an axis of rotation, the chamber includes a side perpendicular to the axis of rotation, and the first coil is disposed toward the side.

4. The balance assembly of claim 1, wherein the balancer comprises a drive assembly, the drive assembly comprising a drive member and a rotating member, the drive member connecting the rotating member and the battery, the drive member configured to drive the rotating member to rotate to move the balancer within the chamber.

5. The counterbalance assembly of claim 4, wherein a ring gear portion is disposed within the chamber, and the rotational member includes a gear that meshes with the ring gear portion.

6. The counterbalance assembly of claim 4, wherein the drive assembly includes a speed adjustment structure connecting the drive member and the rotational member.

7. The counterbalance assembly of claim 6, wherein the speed adjustment structure includes a first stage transmission structure connected to the output shaft of the drive member and a second stage transmission structure connected to the first stage transmission structure and the rotating member.

8. The counterbalance assembly of claim 1, wherein the counterbalance comprises a bracket and a first guide structure, and a second guide structure is disposed within the chamber, the first guide structure being mounted to the bracket and coupled to the second guide structure to guide movement of the counterbalance.

9. The counterbalance assembly of claim 8, wherein one of the first and second guide structures includes a guide wheel and the other of the first and second guide structures includes a guide rail, the guide wheel connecting the guide rail.

10. The counterbalance assembly of claim 9, wherein the guide wheels include two guide wheels and the track includes opposite sides, each guide wheel being movably connected to a side of a corresponding one of the tracks.

11. The counterbalance assembly of claim 4, wherein the counterbalance comprises a load bearing structure on which the drive assembly is disposed, the load bearing structure being in contact with and adapted to move along the inner wall of the chamber during movement of the counterbalance to take up the centrifugal force of the counterbalance as it moves within the chamber.

12. The counterbalance assembly of claim 4, wherein the counterbalance assembly includes a flag and a displacement detector, the counterbalance assembly being configured such that relative movement of the flag and the displacement detector occurs when the drive assembly drives the counterbalance to move within the chamber, the displacement detector being configured to detect a number of times the flag passes the displacement detector, the number of times the flag passes the displacement detector being related to a position of the counterbalance.

13. The counterbalance assembly of claim 12, wherein the rotary member is provided with the identification member or the chamber inner wall is provided with the identification member.

14. The counterbalance assembly of claim 13, wherein the rotary member comprises a gear, the chamber inner wall is provided with a ring gear portion, the gear is engaged with the ring gear portion, and the identification member is a tooth of the gear or a tooth of the ring gear portion.

15. A domestic appliance comprising a body, a chamber rotatably connected to the body, a gimbal mounted in the chamber, and a balancing assembly according to any one of claims 1 to 14, wherein the second wireless charging assembly is mounted in the body.