CN211395025U

CN211395025U - Balancing assembly and household appliance

Info

Publication number: CN211395025U
Application number: CN201922501445.9U
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: 2020-09-01
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a balanced subassembly and domestic appliance. The balancing assembly is used for household appliances. The balancing assembly comprises a balancing body, a balancer, a first wireless charging assembly and an energy storage device. Energy memory, first wireless charging subassembly and balancing body are used for installing the cavity at domestic appliance, be equipped with the cavity in the balancing body, the balancing body can be located the cavity movably, energy memory is connected to first wireless charging subassembly, first wireless charging subassembly receives the energy of charging by domestic appliance wireless transmission, energy memory is located outside the balancing body, the first conductive structure of electricity energy memory is established to the cavity inner wall, the second conductive structure that the balancing body includes can swing joint with first conductive structure, energy memory is supplied power to the balancing body by first conductive structure and second conductive structure. In the balancing assembly, the balancer in the balancing body is powered by the energy storage device through the first conductive structure and the second conductive structure, so that the sealing performance and the power supply reliability of the balancing body can be improved.

Description

Balancing assembly and household appliance

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to a balanced subassembly and household appliance.

Background

In the dehydration stage of the washing machine, the washings in the 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 balancing body is arranged on a washing cavity, and a balancing trolley capable of moving is arranged in the balancing body. By controlling the movement of the balance trolley in the balance body, 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.

The circuit of the balance trolley is connected to the bearing of the washing cavity through a lead, and the circuit of the balance trolley is electrically connected with the circuit of the control system in an electric brush mode. 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.

SUMMERY OF THE UTILITY MODEL

The utility model discloses embodiment provides a balanced subassembly and domestic appliance.

The embodiment of the utility model provides a balance assembly for domestic appliance, balance assembly includes balancing body, equalizer, first wireless charging assembly and energy memory, first wireless charging assembly with the equalizer is used for installing in the cavity of domestic appliance, be equipped with the cavity in the balancing body, the equalizer can be moved and be located in the cavity, first wireless charging assembly connects energy memory, first wireless charging assembly is used for receiving by the charging energy of domestic appliance wireless transmission, and utilize the charging energy to charge for energy memory, energy memory is located outside the equalizer, the inner wall of cavity is equipped with the first conductive structure of electricity connection energy memory, the equalizer includes the second conductive structure, the second conductive structure with first conductive structure can movably be connected, the energy storage device supplies power to the balancer through the first conductive structure and the second conductive structure.

Among the above-mentioned balanced subassembly, the usable wireless transmitting's of domestic appliance charging energy of first wireless charging subassembly charges for energy memory, and the balancer in the balancing body is supplied power through first conductive structure and second conductive structure by energy memory, can avoid adopting the mode of brush to supply power to energy memory like this, and then can improve the leakproofness of the balancing body and the reliability of supplying power.

In some embodiments, the balancer includes a control board, the second conductive structure includes a first conductive member and a second conductive member, the first conductive structure includes a first rail and a second rail, the first conductive member is connected to the first rail, the second conductive member is connected to the second rail, and the first conductive member and the second conductive member are respectively connected to the control board through wires.

In certain embodiments, the first and second electrically conductive members each comprise a conductive wheel, the conductive wheel of the first electrically conductive member being connected to the first rail and the conductive wheel of the second electrically conductive member being connected to the second rail.

In some embodiments, the first conductive member and the second conductive member each include two conductive wheels and a connecting rod, the two conductive wheels are integrally connected by the connecting rod, the first guide rail is partially located in a space between the two conductive wheels of the first conductive member, and the second guide rail is partially located in a space between the two conductive wheels of the second conductive member.

In some embodiments, the conductive wheel of the first conductive member is in resilient abutment with the first rail and the conductive wheel of the second conductive member is in resilient abutment with the second rail.

In some embodiments, the second conductive structure includes a base and a connection frame elastically movably connected to the base, and the first conductive member and the second conductive member are mounted to the connection frame.

In some embodiments, an elastic member is disposed in the base, the elastic member is connected to the connecting frame, and the elastic member is configured to provide an acting force to the connecting frame so that the conductive wheel of the first conductive member elastically abuts against the first guide rail and the conductive wheel of the second conductive member elastically abuts against the second guide rail.

In some embodiments, the balancer includes a driving assembly including a driving member and a rotating member, the driving member connects the rotating member and the control board, and the driving member is configured to drive the rotating member to rotate to drive the balancer to move in the chamber.

In some embodiments, a coupling member is disposed within the chamber and the rotatable member includes a gear that meshes with the coupling member.

In certain embodiments, the drive assembly includes a speed adjustment structure connecting the drive member and the rotational member.

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.

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.

In some embodiments, the balancing assembly includes a correcting member and a correction detecting member, the balancing assembly is configured such that, in a case where the balancer moves, the correcting member moves relative to the correction detecting member, and the correction detecting member is configured to detect the correcting member to eliminate a position error of the balancer.

An embodiment of the utility model provides a domestic appliance includes body, cavity, the wireless subassembly that charges of second and any embodiment of the aforesaid balance assembly, the cavity can connect with rotating the body, energy memory first wireless subassembly that charges with the balance body is installed the cavity, the wireless subassembly that charges of second is installed the body.

Among the above-mentioned domestic appliance, the usable wireless transmission's of second of first wireless charging subassembly energy of charging charges for energy memory, and the equalizer in the balancing body is supplied power through first conductive structure and second conductive structure by energy memory, can avoid adopting the mode of brush to supply power to energy memory like this, and then can improve the leakproofness of balancing body and the reliability of supplying power.

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 diagram of a household appliance according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a balance body according to an embodiment of the present invention;

fig. 3 is a schematic block diagram of a household appliance according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a balancer according to an embodiment of the present invention;

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

FIG. 6 is a schematic diagram of a portion of a balancing assembly according to an embodiment of the present invention;

fig. 7 is another schematic structural view of a portion of a balancing assembly according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a second conductive structure according to an embodiment of the present invention;

fig. 9 is a schematic view of the interior of the structure of a second conductive structure according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a speed control structure according to an embodiment of the present invention;

FIG. 11 is another exploded schematic view of a counterbalance assembly in accordance with an embodiment of the present invention;

fig. 12 is a schematic structural view of a load bearing structure according to an embodiment of the present invention;

fig. 13 is another schematic structural view of a load bearing structure according to an embodiment of the present invention;

fig. 14 is another schematic structural view of a portion of a balancing assembly according to an embodiment of the present invention;

fig. 15 and 16 are schematic views of the displacement detector according to the embodiment of the present invention;

fig. 17 is a schematic view of the balancer of the embodiment of the present invention at an initial position;

fig. 18 is a schematic distribution diagram of a calibration piece according to an embodiment of the present invention;

fig. 19 is a partially exploded schematic view of the chamber and the balance of the embodiment of the present invention;

fig. 20 is another partially exploded view of the cavity and the balance body according to the embodiment of the present invention.

Description of the main element symbols:

a balance assembly 100;

the balance body 10, the first conductive structure 11, the first guide rail 112, the second guide rail 114, the chamber 12, the initial position 121, the inner wall 122, the connecting member 14, the bearing ring 15, the end cover 16 and the ring seat 17;

balancer 20, controller 21, bracket 22, first side 222, second side 224, connecting plate 25, second conductive structure 24, conductive shaft 240, conductive wheel 241, first conductive piece 242, connecting rod 243, second conductive piece 244, wire 245, base 246, elastic piece 2462, connecting column 247, connecting frame 248, mounting groove 2482, control board 26, control cabin 29;

the driving assembly 23, the driving member 232, the output shaft 2322, the rotating member 234, the gear 2342, the teeth 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 box 238 and the rotating shaft 231;

the supporting structure 27, the supporting plate 272, the mounting hole 2722, the rolling element 274, the bearing 2742, the rotating shaft 2744, the energy storage device 30, the first wireless charging component 34, the receiving coil 342, the second wireless charging component 36, the transmitting coil 362, the second wireless charging component, the third wireless charging component, the fourth wireless charging component, and the fourth wireless charging component,

The marker 40, the displacement detector 50, the corrector 60, and the correction detector 70;

the household appliance comprises a household appliance 1000, a cavity (washing cavity 200), a water containing cavity 201, a first end 202, a second end 204, a body 300, a main controller 400, a vibration damping structure 500, a mounting plate 600 and a fixing frame 700.

Detailed Description

Reference will now be made in detail to embodiments of the 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 exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this specification, unless explicitly stated or limited otherwise, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

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

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order 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 reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1 to 4 and fig. 19, a balance assembly 100 for a household appliance 1000 according to an embodiment of the present invention is provided. The balancing assembly 100 includes a balancing body 10, a balancer 20, a first wireless charging assembly 34, and an energy storage device 30. First wireless charging assembly 34, energy storage device 30 and balance 10 are adapted to be mounted in cavity 200 of household appliance 1000. A chamber 12 is provided in the balance body 10, and a balancer 20 is movably located in the chamber 12. The first wireless charging assembly 34 is connected to the energy storage device 30, the first wireless charging assembly 34 is configured to receive charging energy wirelessly transmitted by the household appliance 1000 and charge the energy storage device 30 by using the charging energy, the energy storage device 30 is located outside the balancer 20, the inner wall 122 of the chamber 12 is provided with a first conductive structure 11 electrically connected to the energy storage device 30, the balancer 20 includes a second conductive structure 24, the second conductive structure 24 is movably connected to the first conductive structure 11, and the energy storage device 30 supplies power to the balancer 20 through the first conductive structure 11 and the second conductive structure 24.

In the above balancing assembly 100, the first wireless charging assembly 34 can charge the energy storage device 30 by using the charging energy wirelessly transmitted by the household appliance 1000, and the balancer 20 in the balancing body 10 is powered by the energy storage device 30 through the first conductive structure 11 and the second conductive structure 24, so that the power supply to the energy storage device 30 by using a brush can be avoided, and the sealing performance and the power supply reliability of the balancing body 10 can be further improved. Also, the energy storage device 30 is located outside the balancer 20. In this way, the weight of the balancer 20 itself can be reduced, so that the balancer 20 can be driven more easily, and further, if there are a plurality of balancers 20 and the energy storage device 30 can be shared by a plurality of balancers 20, the balancing assembly 100 can form a unified power supply at a lower cost.

In particular, the balancing assembly 100 may be applied to the household appliance 1000, and the balancing body 10 and the energy storage device 30 of the balancing assembly 100 may be mounted on the cavity 200 of the household appliance 1000. The home appliance 1000 may be a laundry treating appliance such as a washing machine (e.g., a drum washing machine), a dryer, or other home appliances 1000 having the rotatable cavity 200. In an embodiment of the present invention, the household appliance 1000 includes a body 300, a cavity 200 and a balance assembly 100. The cavity 200 is rotatably connected with the body 300, the cavity 200 has a rotation axis X, the balance body 10 is mounted in the cavity 200, the household appliance 1000 comprises a second wireless charging assembly 36, and the second wireless charging assembly 36 can be mounted in the body 300. The home appliance 1000 further includes a main controller 400, and the balancer 20 further includes a controller 21. The main controller 400 communicates with the controller 21 to transmit a current state signal and a movement signal of the balancer 21, etc. The main controller 400 and the controller 21 may be connected and communicated by a wire or wirelessly. 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 body 10 is fixed to the chamber 200 to rotate 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 within the chamber 12 of the balancing body 10, thereby reducing the vibration of the home appliance 1000.

Energy storage device 30 is located outside of balancer 20, it being understood that energy storage device 30 is not mounted to balancer 20 and that energy storage device 30 may be secured to other physical locations outside of balancer 20, such as to cavity 200.

In the examples of the present invention, the main controller 400 and the controller 21 communicate wirelessly. Specifically, the main controller 400 may include a first wireless communication module and a wireless gateway. The controller 21 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.

Referring to fig. 20, the first wireless charging assembly 34 includes a receiving coil 342, the second wireless charging assembly 36 includes a transmitting coil 362, and the receiving coil 342 and the transmitting coil 361 are oppositely disposed. The transmitting coil 362 may transmit charging energy to the receiving coil 342, the receiving coil 342 charges the energy storage device 30 using the received charging energy, and the energy storage device 30 may be electrically connected to the first conductive structure 11, so that the balancer 20 may take electricity from the energy storage device 30 through the first conductive structure 11. The receiving coil 342 and the transmitting coil 361 are coaxially disposed and are disposed along the rotation axis X, so that when the cavity 200 rotates, the electric power transmission efficiency of the receiving coil 342 and the transmitting coil 362 is less affected.

In the illustrated embodiment, the balance 10 has a ring shape. It is understood that in other embodiments, the counterweight 10 may take other shapes, such as a flat plate. And is not particularly limited herein. Referring to fig. 2 and 5, in some embodiments, the balance body 10 includes a bearing ring 15, an end cap 16, an annular connecting member 14, and a ring seat 17. The chamber 12 is formed in the ring seat 17, the end cap 16 is connected with the ring seat 17 and seals the chamber 12, and the bearing ring 15 is arranged on the inner wall 122 of the chamber 12. The number of the connecting pieces 14 can be two, and the two connecting pieces are respectively arranged on two sides of the bearing ring 15. Since the balance body 10 has a ring shape, the balancer 20 can move circularly in the chamber 12 of the balance body 10.

Referring to fig. 4-6, in some embodiments, the balancer 20 includes a bracket 22, and the second conductive structure 24 is mounted to the bracket 22. In addition, the connection between the first conductive structure 11 and the second conductive structure 24 can also play a role of guiding the movement of the balancer 20, so that the balancer 20 can stably move in the cavity 12 under the condition of high-speed movement through the guidance of the first conductive structure 11 and the second conductive structure 24, and the balancer 20 is prevented from being separated from the balance body 10.

Specifically, referring to fig. 4, the number of the second conductive structures 24 may be two along the length direction a-a of the balancer 20, and the two second conductive structures 24 are respectively installed at two ends of the bracket 22. The second conductive structure 24 may be mounted to the bracket 22 by a connection plate 25. In other embodiments, the number of the second conductive structures 24 may be other, and is not limited in detail. Referring to fig. 5 and 6, further, the movement of the balancer 20 is guided by the first conductive structure 11 and the second conductive structure 24, the second conductive structure 24 is installed at two ends of the balancer 20, the first conductive structure 11 is installed on the inner wall 122 of the cavity 12, and the first conductive structure 11 and the second conductive structure 24 cooperate with each other to guide the movement of the balancer 20. It is understood that the balancer 20 may be shaken while moving in the chamber 12, and the movement of the balancer 20 may be affected by deviating the balancer 20 from a moving track at a high speed. The first conductive structure 11 and the second conductive structure 24 can perform a conductive function, on one hand, and make the balancer 20 move along the inner wall 122 of the cavity 12, so as to guide the balancer 20 and increase the stability of the balancer 20.

In an embodiment of the present invention, the bracket 22 may be made of a metal material, such as a thick stainless steel plate, for fixing the second conductive structure 24 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 22 is not deformed during the entire operation of the balancer 20.

Referring to fig. 6-8 in combination with fig. 4, in some embodiments, the balancer 20 includes the control board 26, the second conductive structure 24 includes a first conductive member 242 and a second conductive member 244, and the first conductive structure 11 includes the first rail 112 and the second rail 114. The first conductor 242 is connected to the first rail 112, the second conductor 244 is connected to the second rail 114, and the first conductor 242 and the second conductor 244 are electrically connected to the control board 26, respectively. In this manner, the second conductive structure 24 draws power from the energy storage device 30 through the first conductive structure 11 and transmits the power to the control board 26, and the control board 26 may provide power to the load of the balancer 20.

Specifically, the second conductive structure 24 includes a conductive shaft 240 (e.g., a copper shaft). The conductive shafts 240 are stationary and may be two in number and pass through a first conductive member 242 and a second conductive member 244, respectively. The first and second

conductive members

242 and 244, respectively, may rotate about the conductive shaft 240. A wire 245 may electrically connect the conductive shaft 240 and the energy storage device 30, and electrical energy may be transferred from the conductive shaft 240 and the wire 245 to the energy storage device 30.

In one embodiment, energy storage device 30 may comprise a rechargeable battery having a positive electrode coupled to first rail 112 via a conductive wire 245, a conductive shaft 240, and a first conductive member 242, and a negative electrode coupled to second rail 114 via a conductive wire 245, a conductive shaft 240, and a second conductive member 244. The power of the battery is transmitted from the first rail 112 and the second rail 114 to the balancer. Since the first conductive member 242 is connected to the first rail 112 and the second conductive member 244 is connected to the second rail 114, the first conductive member 242 can take power through the first rail 112 and the second conductive member 244 can take power through the second rail 114 according to the principle that metal has conductivity, and then the first conductive member 242 and the second conductive member 244 transmit power to the conductive shaft 240 and the conductive wire 245, respectively, and then, are transmitted to the control board 26 of the balancer 20, and further, the control board 26 can supply power to the load of the balancer 20. In this way, the control board 26 of the balancer 20 draws power from the battery through the first conductive structure 11 and the second conductive structure 24.

It will be appreciated that the first track 112 and the second track 114 may be annular tracks disposed on an inner wall 122 of the chamber 12. First and

second rails

112, 114 are electrically conductive, such as copper, and first and second

conductive members

242, 244 may also be made of copper.

In other embodiments, the first and

second guide rails

112 and 114, and the first and second

conductive members

242 and 244 may be made of other conductive materials, and are not limited herein. The balancer 20 may include a control cabin 29, and the control board 26 is disposed in the control cabin 29. The controller 21 of the balancer 20 is provided on the control board 26.

Referring to fig. 6 and 7, in some embodiments, the first conductive member 242 and the second conductive member 244 each include a conductive wheel 241, the conductive wheel 241 of the first conductive member 242 is movably connected to the first rail 112, and the conductive wheel 241 of the second conductive member 244 is movably connected to the second rail 114. As such, it is advantageous to reduce the friction between the first conductive structure 11 and the second conductive structure 24 when the balancer 20 moves.

Specifically, the conductive wheel 241 may be a roller, and may be circular in shape, and the conductive wheel 241 may roll on the guide rail. In this way, during the movement of the balancer 20, the friction between the first conductive structure 11 and the second conductive structure 24 is less, so that the resistance when the balancer 20 moves is reduced, which is beneficial to reducing the power of the balancer 20, and the power supply time of the energy storage device 30 is longer.

Referring to fig. 8 to 9, in some embodiments, the first conductive member 242 and the second conductive member 244 each include two conductive wheels 241 and a connecting rod 243. The two conductive wheels 241 are connected by a connection rod 243, and the first guide rail 112 is partially located in a space between the two conductive wheels 241 of the first conductive member 242, and the second guide rail 114 is partially located in a space between the two conductive wheels 241 of the second conductive member 244. Thus, the two conductive wheels 241 of each conductive member can clamp the guide rail, thereby further ensuring the stable movement of the balancer 20.

Specifically, the guide rail includes two opposite side surfaces, two conductive wheels 241 are connected by a connecting rod 243 to form a conductive member in an H-shape, and the conductive wheels 241 are slidably or rollably connected to the side surfaces of the guide rail. The H-shaped conductive member can hold the guide rail, further ensuring stable movement of the balancer 20.

In the illustrated embodiment, the conductive wheels 241 may roll on the guide rails, two conductive wheels 241 of the first conductive member 242 may grip the first guide rail 112, and two conductive wheels 241 of the second conductive member 244 may grip the second guide rail 114. In other embodiments, the first conductive structure 11 and the second conductive structure 24 can be connected to each other by embedding or engaging, and can also perform guiding and conductive functions. Other embodiments are not limited thereto.

Furthermore, the two conductive wheels 241 may be rotatably connected with the connecting rod 243, for example, by a bearing. In other embodiments, the connecting rod 243 may be fixedly connected to the conductive wheel 241, and the fixed connection may be a metal welding connection, a screw connection, or a snap connection, which is not limited herein. The conductive shaft 240 penetrates the conductive wheel 241 and the connection rod 243.

More specifically, in the illustrated embodiment, the number of the second conductive structures 24 is two, two second conductive structures 24 are respectively installed at both ends of the balancer 20, and each second conductive structure 24 includes a first conductive member 242 and a second conductive member 244 arranged side by side. In this manner, the reliability of the connection of the second conductive structure 24 and the first conductive structure 22 is increased.

In some embodiments, referring to fig. 8 and 9, the conductive wheel 241 of the first conductive member 242 is elastically abutted against the first guide rail 112, and the conductive wheel 241 of the second conductive member 244 is elastically abutted against the second guide rail 114. In this way, the balancer 20 can be prevented from shaking during movement.

Specifically, taking the conductive wheel 241 of the first conductive member 242 and the first guide rail 112 as an example, when the conductive wheel 241 of the first conductive member 242 elastically abuts against the first guide rail 112, and when the acting force between the conductive wheel 241 of the first conductive member 242 and the first guide rail 112 is too large, the acting force generated by the conductive wheel 241 of the first conductive member 242 elastically abutting against the first guide rail 112 causes the conductive wheel 241 of the first conductive member 242 to be away from the first guide rail 112, and buffers the acting force between the conductive wheel 241 of the first conductive member 242 and the first guide rail 112. The conductive wheel 241 of the second conductive member 244 and the second rail 114 have the same force. Thus, the force acting between the second conductive structure 24 and the first conductive structure 11 can be reduced, preventing the balancer 20 from shaking during movement.

Referring to fig. 8 and 9, in some embodiments, second conductive structure 24 includes a base 246 and a connecting frame 248, connecting frame 248 movably connecting base 246, first conductive member 242 and second conductive member 244 mounted on connecting frame 248. In this way, in the moving process of the balancer 20, the connection frame 248 is movably connected to the base 246, so that the conductive wheel 241 of the first conductive member 242 is elastically abutted against the first guide rail 112 and the conductive wheel 241 of the second conductive member 244 is elastically abutted against the second guide rail 114, so that the balancer 20 can stably move.

Specifically, referring to fig. 8 and 9, an elastic member 2462 is disposed in the base 246, the elastic member 2462 is connected to the connecting frame 248, and the elastic member 2462 is used for providing a force to the connecting frame 248 to elastically abut the conductive wheel 241 of the first conductive member 242 against the first guide rail 112 and elastically abut the conductive wheel 241 of the second conductive member 244 against the second guide rail 114. In this way, the conductive wheel 241 and the guide rail can be elastically abutted by the acting force provided by the elastic member 2462, thereby ensuring that the balancer 20 can stably move at any rotation speed.

It is understood that the connecting frame 248 can be provided in a split type or an integrated type, and in this embodiment, the connecting frame 248 includes a first connecting frame 248a and a second connecting frame 248 b. The first and second

conductive members

242 and 244 may be mounted to first and

second connection brackets

248a and 248b, respectively. The connection rod 243 of the first conductive member 242 is rotatably connected to the first connection frame 248a, the connection rod 243 of the second conductive member 244 is rotatably connected to the second connection frame 248b, and mounting grooves 2482 are formed in the first connection frame 248a and the second connection frame 248b, and the wires 245 pass through the mounting grooves 2482. The elastic member 2462 includes a first elastic member 2462a and a second elastic member 2462b, the first elastic member 2462a connecting the base 246 and the first connecting bracket 248a, and the second elastic member 2462b connecting the base 246 and the second connecting bracket 248 b.

During the movement of the balancer 20, the first connection frame 248a and the second connection frame 248b tightly connect the first conductive member 242 with the first rail 112 and the second conductive member 244 with the second rail 114 by the first elastic member 2462a and the second elastic member 2462b, respectively. In this way, the risk of poor contact between the first conductive member 242 and the first rail 112 and between the second conductive member 244 and the second rail 114 due to assembly errors and manufacturing errors can be avoided.

Further, referring to fig. 8 and 9, a blind hole for accommodating an elastic member 2462 is formed in the base 246, a connection column 247 is disposed below the connection frame 248, one end of the elastic member 2462 is connected to the connection column 247, and the other end of the elastic member 2462 abuts against a bottom wall of the blind hole. The elastic member 2462 may be connected to the connection frame 248 by the connection post 247. The connection columns 247 may include first connection columns 247a and second connection columns 247b, the first connection frame 248a being connected to the first elastic member 2462a through the first connection columns 247a, and the second connection frame 248b being connected to the second elastic member 2462b through the second connection columns 247 b. In an embodiment of the present invention, each second conductive structure 24 may include two elastic members 2462, so that the base 246 may bear a larger acting force. In other embodiments, the number of the elastic members 2462 of each second conductive structure 24 may be 1, 3 or other numbers, which are not limited herein. The elastic member 2462 may be a spring, such as a coil spring, a leaf spring, a torsion bar spring, a gas spring, or a rubber spring, and is not particularly limited herein.

In some embodiments, referring to fig. 7, 10 and 11, the balancer 20 includes a driving assembly 23, 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 control board 26, and the control board 26 is configured to control the driving member 232 to drive the rotating member 234 to rotate so as to drive the balancer 20 to move in the chamber 12. In this way, the driving member 232 can draw power from the battery through the control board 26, and the balancer 20 is moved by the driving assembly 23, so as to change the position of the balancer 20 in the cavity 12, thereby reducing the vibration of the household appliance 1000.

Specifically, the control board 26 of the balancer 20 is connected to the energy storage device 30 through the first and second

conductive structures

11 and 24, and the driving member 232 is connected to the control board 26, so that the control board 26 can control the voltage of the driving member 232 to change the state of the driving member 232. 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 some embodiments, referring to fig. 4 and 11, the housing 12 has a ring-shaped coupling member 14, the coupling member 14 has a toothed portion on an inner side thereof, and the rotating member 234 includes a gear 2342, and the gear 2342 is engaged with the toothed portion. In this way, the balancer 20 is driven to move by the engagement of the gear 2342 with the ring gear, 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 carrier ring 15, the inner side of the carrier ring 15 being provided with a connecting piece 14, the modulus of the teeth being 1 or 1.25. The gear 2342 of the rotating member 234 rotates in mesh with the teeth, and thus the balancer 20 is moved relative to the teeth by the rotation of the gear 2342. It will be appreciated that in other embodiments, the load ring 15 may be omitted and the attachment member 14 may be provided directly on the inner wall 122 of the chamber 12.

In some embodiments, referring to fig. 7, 10 and 11, 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 support 22 includes first and second

opposite sides

222, 224, the first side 222 facing the axis of rotation X of the chamber 200. The speed adjustment structure 236 is mounted to the second side 224 of the bracket 22. The governor structure 236 can include a housing 238 and an adjustment assembly located within the housing 238. The box 238 may be made of a firm, non-deformable thick steel plate, and the box 238 is a rectangular parallelepiped as a whole. In other embodiments, the box 238 may have other shapes such as a cube, prism, or cylinder. In the illustrated embodiment, the inner wall 122 is provided with two coupling members 14, and the rotating member 234 includes two gears 2342, the two gears 2342 being respectively located at both sides of the case 238 and respectively engaged with the two coupling members 14. 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. 10, 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 wheel 23624 and the worm 23622 also serve as a limit so that the balancer 20 can be stably held in the balancing body 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. 4, 6 and 8, the balancer 20 includes a bearing structure 27, the drive assembly 23 is disposed on the bearing structure 27, and the bearing structure 27 is in contact with the inner wall 122 of the chamber 12 and is configured to move along the inner wall 122 of the chamber 12 during movement of the balancer 20 to take on centrifugal forces as the balancer 20 moves within the chamber 12. 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. 12, 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, the carrier plate 272 is also provided with a plurality of mounting holes 2722, and the mounting holes 2722 are used to mount the carrier structure 27 to the balancer 20, for example, fasteners may be coupled to the case 238 through the mounting holes 2722 to mount the carrier structure 27 to the adjustment case. The mounting aperture 2722 may be circular, rectangular, oval, etc.

In other embodiments, referring to fig. 13, the supporting structure 27 may be an arc-shaped block with a certain curvature, such as the supporting structure 27 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. 14 to 18, the balancing assembly 100 includes a mark member 40 and a displacement detecting member 50, the balancing assembly 100 is configured such that when the driving assembly 23 drives the balancer 20 to move in the cavity 12, the mark member 40 and the displacement detecting member 50 move relatively, the displacement detecting member 50 is used for detecting the number of times that the mark member 40 passes the displacement detecting member 50, and the number of times that the mark member 40 passes the displacement detecting member 50 is related to the position of the balancer 20. In this way, the displacement detecting member 50 can detect the number of times the identification member 40 passes the displacement detecting member 50, 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 40 and the displacement detection member 50 move relatively to each other to pass through the displacement detection member 50, and the number of times the marker 40 passes through the displacement detection member 50 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 40 passes the displacement detection member 50, 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 40, or the inner wall 122 of the chamber 12 is provided with the identifier 40. Thus, various detection modes of the identification member 40 can be provided, and the flexibility of the identification member 40 during installation is improved.

Further, referring to fig. 14, in the illustrated embodiment, the rotating member 234 is provided with the identification member 40. Specifically, the rotating member 234 includes a gear 2342. The chamber 12 comprises an inner wall 122, the inner wall 122 being provided with the connection 14. Gear 2342 meshes with the teeth of coupling 14. The identification member 40 is the teeth 23422 of gear 2342 or the teeth of the coupling member 14. In this way, the teeth of the gear 2342 can be used as the identification member 40, and the identification member 40 need not be provided separately. It will be appreciated that in other embodiments, the identifiers 40 may also be teeth of the connector 14.

Grooves 23424 are formed among teeth of the gear 2342 or the tooth part of the connecting piece 14, and the teeth 23422 and the grooves 23424 are evenly distributed in a staggered mode. Gear 2342 rotates in mesh with the teeth of link 14, and when gear 2342 rotates, balancer 20 is moved relative to link 14. In this case, the teeth 23422 of the gear 2342 or the teeth of the coupling member 14 may serve as the identification member 40, and accordingly, the displacement sensing member 50 may be mounted to the balancer 20. The displacement detecting member 50 includes a detecting surface facing the marker 40. The teeth 23422 of the gear 2342 serve as the identification member 40, i.e., the rotating member 234 is provided with the identification member 40. The teeth of the connecting member 14 provided on the inner wall 122 are used as the markers 40, i.e., the inner wall 122 of the chamber 12 is provided with the markers 40. In other embodiments, the identifier 40 may be disposed within the chamber 12 at a location other than the inner wall 122.

Specifically, when the identification member 40 is the teeth 23422 of the gear 2342, the displacement sensing member 50 may be mounted on the balancer 20 at a position facing the teeth 23422 of the gear 2342. As gear 2342 rotates, displacement sensing member 50 is relatively stationary. When the identification member 40 is a tooth of the coupling member 14, the displacement detecting member 50 may be mounted on the balancer 20 at a position opposite to the tooth of the coupling member 14, and when the gear 2342 rotates, the balancer 20 moves to move the displacement detecting member 50 relative to the coupling member 14. During rotation of gear 2342, teeth 23422 of gear 2342 pass displacement sensing member 50 continuously, and therefore the number of times teeth 23422 of gear 2342 pass displacement sensing member 50, that is, the number of teeth 2342 pass displacement sensing member 50, can be sensed.

In some embodiments, the displacement sensing member 50 includes at least one of a light sensor, a hall sensor, and an ultrasonic sensor. Thus, the displacement detecting member 50 is optional and low in cost.

Specifically, when the displacement detecting member 50 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 50 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 detector 50, or the data may be subjected to calculation of different weights or ratios to obtain the output data of the displacement detector 50.

It will be appreciated that as technology advances, 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 the balance assembly 100. The displacement detector 50 is a sensor of the type described above, and can perform the function of detecting the marker 40, and can reduce the manufacturing cost of the balancer assembly 100.

In the embodiment of fig. 15, the identification member 40 is the teeth 23422 of the gear 2342 and the displacement sensing member 50 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. 16, the identification member 40 is the teeth 23422 of the gear 2342 and the displacement sensing member 50 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 40 may be a black and white stripe, and the displacement detecting member 50 may be a light sensor. The black and white stripes may be provided on gear 2342, or on a member which rotates coaxially with gear 2342, or on the inner wall 122 of chamber 12 forming a circular ring and arranged concentrically with connector 14, and the light sensor may be mounted on 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 40 may have other configurations, for example, the rotatable member 234 may be a wheel having a plurality of spaced spokes and the identification member 40 may be a spoke of a wheel. The displacement detecting member 50 may detect the number of times the web bar passes the displacement detecting member 50. The specific detection principle is similar to the detection principle described above.

Referring to fig. 17 and 18, in some embodiments, the chamber 12 is provided with an initial position 121. The balancer 20 includes a controller 21, and the controller 21 is electrically connected to the displacement detecting member 50. The controller 21 is configured to determine the position of the balancer 20 based on the number of times the marker 40 passes the displacement sensing member 50 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 21 records the initial position 121, and determines the position of the balancer 20 by combining the moving distance of the balancer 20 when the balancer 20 starts to move from the default position. Specifically, the displacement detector 50 may output regular pulse signals according to the number of times the identifier 40 passes through the displacement detector 50, the controller 21 receives the pulse signals output by the displacement detector 50, 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 26 (not shown), and the controller 21 may be provided to the control board 26. The specific location of the balancer 20 may be transmitted to the main controller 400 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 body 10 can be kept in balance without the movement of the balancer 20.

In the embodiment of fig. 18, 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. 4 and 14, in some embodiments, the balancing assembly 100 includes a correcting element 60 and a correcting detecting element 70, the balancing assembly 100 is configured such that the correcting element 60 and the correcting detecting element 70 move relative to each other when the balancer 20 moves, and the correcting detecting element 70 is used to detect the correcting element 60 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 50 senses information of the number of times the identification member 40 passes the displacement sensing member 50. 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 member 60 and the correction detecting member 70.

Specifically, when the correction detecting member 70 passes each correcting member 60, information that it detects the correcting member 60 is transmitted to the controller 21. Further, the controller 21 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 avoid the problem that the position of the balancer 20 cannot be accurately determined due to accumulated distance errors caused by long-time movement of the balancer 20. In this embodiment, after the calibration detecting member 70 passes through each calibration member 60, the information of the number of times that the displacement detecting member 50 passes through the identification member 40 is fed back to the controller 21 again from 0 by way of a pulse signal, the moving distance of the balancer 20 by the controller 21 is calculated again, and the accurate position information of the balancer 10 where the balancer 20 is located is obtained.

In the case where the number of the correction members 60 is two or more, the distance between the adjacent two correction members 60 is fixed. In the case where the balancer 20 passes through the adjacent two correcting elements 60 in succession, the moving distance of the balancer 20 between the two correcting elements 60 can be known, so that the error generated by the displacement detecting element 50 between the adjacent two correcting elements 60 can be eliminated.

Referring to fig. 18, the plurality of calibration pieces 60 are distributed and spaced apart from each other on an inner wall 122 of the chamber 12, such as the second inner wall 122, and each calibration piece 60 includes a different number of calibration portions. The correction detecting member 70 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 70 that the balancer 20 is passing through a certain correction member 60, 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 correcting member 60 at intervals, and the number of the correcting members is one, two, three or four.

In the case where the calibration detecting member 70 includes a photo sensor, the calibration member 60 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 60, 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 60. In other embodiments, the correction portion may be the groove 23424 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 70 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 correcting member 60, the correcting member 60 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 correcting portions, and determines the number of the correcting portions passing therethrough based on the pulse signals, thereby determining the current position of the balancer 20 based on the position of the correcting member 60.

The number and position of the correction pieces 60 and the number of correction portions of the correction pieces 60 may be adjusted according to the specific circumstances, and are not limited to the above embodiments.

Referring to fig. 1, an embodiment of the present invention provides a household appliance 1000, which includes a body 300, a cavity 200, a second wireless charging assembly 36 and a balancing assembly 100 of any of the above embodiments. The cavity 200 is rotatably connected with the body 300, the energy storage device 30, the first wireless charging assembly 34 and the balance body 10 are mounted in the cavity 200, and the second wireless charging assembly 36 is mounted in the body 300.

In the household appliance 1000, the first wireless charging assembly 34 can charge the energy storage device 30 by using the charging energy wirelessly transmitted by the second wireless charging assembly 36, and the energy storage device 30 of the balancer 20 in the balancing body 10 can receive the charging energy by the first conductive structure 11 and the second conductive structure 24, so that the power supply to the energy storage device 30 by using a brush mode can be avoided, and the sealing performance and the power transmission reliability of the balancing body 10 can be further 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.

Specifically, the first wireless charging assembly 34 is mounted in the cavity 200 of the household appliance 1000, and the second wireless charging assembly 36 is mounted in the body 300 of the household appliance 1000. The second wireless charging assembly 36 can transmit charging energy to the first wireless charging assembly 34, and the first wireless charging assembly 34 can use the received charging energy to charge the energy storage device.

In the illustrated embodiment, the household appliance 1000 is a washing machine, the cavity 200 is rotatably disposed in the body 300 and can be used for washing laundry, and the laundry 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 body 10 is fixedly connected to the chamber 200 and rotates together with the chamber 200. Therefore, the eccentric mass when the chamber 200 rotates can be offset or reduced by the movement of the balancer 20 in the balancing body 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 300 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 energy storage device 30 may be disposed in the water containing cavity 201 or in the body 300. The washing chamber 200 may have a rotation axis 231 arranged horizontally, obliquely or vertically. That is, the rotation axis 231 of the washing chamber 200 is parallel to, inclined to, or perpendicular to the horizontal plane. It is understood that one or more balance bodies 10 may be disposed at any position of the washing chamber 200, and the balance bodies 10 rotate with the rotation of the washing chamber 200. The central axis of the balancing body 10 is parallel to or coincident with the rotation axis X of the washing chamber 200, that is, the balancing body 10 may be disposed coaxially with the washing chamber 200 or eccentrically with respect to the washing chamber 200. The balance body 10 may be spirally arranged on the cavity 200.

Referring to fig. 19, 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 bodies 10 may be two, and the balancing bodies 10 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 body 10, and preferably, two balancers 20 are disposed in each balancing body 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 700, the fixing frame 700 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 threadedly engaged with another balance body 10. 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 balance body 10, or the balance body 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 body 10. It should be noted that, in the present invention, the initial positions 121 of the two balancers 20 in the balance body 10 are symmetrically arranged, and the arrangement is such that the cavity 200 can reach a balance in an unloaded state.

It can be appreciated that referring to fig. 20, the receiving coil 342 is mounted on the holder 700 of the washing chamber 200. The transmitting coil 362 is installed at one end of the water containing chamber 201.

In particular, the central axes of the receiver coil 342 and the transmitter coil 362 are collinear with the axis of rotation X of the chamber 200. The receiving coil 342 and the transmitting coil 362 are oppositely disposed at a spacing. The receive coil 342 and the transmit coil 362 may be electromagnetic coils. The transmit coil 362 can transmit electromagnetic wave energy and the receive coil 342 can receive electromagnetic wave energy. The current generated by the receiving coil 342 under the action of electromagnetic induction will pass through the wires inside the fixing frame 700, and the current is input to the components of the cavity that need to be powered, such as the energy storage device 30.

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 600 through the vibration reduction structure 500, and the mounting plate 600 may be fixed to the housing bottom plate of the household appliance 1000. The damping structure 500 may employ springs, hydraulics, and the like to reduce the transmission of vibrations.

In the description of the present specification, reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example", or "some examples" or the like 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. A balancing assembly for a household appliance, the balancing assembly comprising a balancing body, a balancer, a first wireless charging assembly and an energy storage device, the first wireless charging assembly and the balancing body are mounted in a cavity of the household appliance, the balancing body is provided with a chamber therein, the balancer is movably located in the chamber, the first wireless charging assembly is connected with the energy storage device, the first wireless charging assembly is used for receiving charging energy wirelessly transmitted by the household appliance and charging the energy storage device by using the charging energy, the energy storage device is located outside the balancer, an inner wall of the chamber is provided with a first conductive structure electrically connected with the energy storage device, the balancer comprises a second conductive structure movably connected with the first conductive structure, the energy storage device supplies power to the balancer through the first conductive structure and the second conductive structure.

2. The balancing assembly of claim 1, wherein the balancer includes a control board, the second conductive structure includes a first conductive member and a second conductive member, the first conductive structure includes a first rail and a second rail, the first conductive member connects the first rail, the second conductive member connects the second rail, and the first conductive member and the second conductive member are respectively electrically connected to the control board.

3. The balance assembly of claim 2, wherein the first and second conductive members each comprise a conductive wheel, the conductive wheel of the first conductive member being movably coupled to the first rail, the conductive wheel of the second conductive member being movably coupled to the second rail.

4. The balance assembly of claim 3, wherein the first and second conductive members each comprise two of the conductive wheels and a connecting rod, the two conductive wheels being connected by the connecting rod, the first guide rail being partially located in a space between the two conductive wheels of the first conductive member, the second guide rail being partially located in a space between the two conductive wheels of the second conductive member.

5. The balance assembly of claim 3, wherein the conductive wheel of the first conductive member is in resilient abutment with the first rail and the conductive wheel of the second conductive member is in resilient abutment with the second rail.

6. The counterbalance assembly of claim 5, wherein the second conductive structure includes a base and a connecting bracket movably connected to the base, the first and second conductive members being mounted to the connecting bracket.

7. The balance assembly of claim 6, wherein an elastic member is disposed in the base, the elastic member is connected to the connecting frame, and the elastic member is configured to provide a force to the connecting frame to elastically abut the conductive roller of the first conductive member against the first guide rail and elastically abut the conductive roller of the second conductive member against the second guide rail.

8. The balance assembly of claim 2, 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 control board, the control board controlling the drive member to drive the rotating member to rotate to drive the balancer to move within the chamber.

9. The counterbalance assembly of claim 8, wherein an annular link is disposed within the chamber, the link having teeth on an inner side thereof, and the rotatable member includes a gear that meshes with the teeth.

10. The counterbalance assembly of claim 8, wherein the drive assembly includes a speed adjustment structure connecting the drive member and the rotating member.

11. The counterbalance assembly of claim 8, 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 8, 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 balance assembly according to claim 8, comprising a correcting member and a correction detecting member, wherein the balance assembly is configured such that, in a case where the balancer is moved, the correcting member and the correction detecting member are relatively moved, and the correction detecting member is configured to detect the correcting member to eliminate a position error of the balancer.

14. A domestic appliance comprising a body, a cavity rotatably connected to the body, a second wireless charging assembly and a balancing assembly according to any one of claims 1 to 13, wherein the energy storage device, the first wireless charging assembly and the balancing body are mounted in the cavity, and the second wireless charging assembly is mounted in the body.