CN212388217U - Household electrical appliance - Google Patents

Abstract

The utility model discloses a household appliance. The household appliance comprises a controller, a balancer, a wireless transceiving device, a balancing body, a first cavity and a second cavity. The wireless transceiver device comprises a first wireless transceiver, a repeater and a second wireless transceiver. The controller is connected with the second wireless transceiver. An annular cavity is arranged in the balancing body, and the balancer is positioned in the cavity. The balancing body, the repeater and the first wireless receiving and transmitting part are arranged in the first cavity, and the repeater is connected with the first wireless receiving and transmitting part and the balancing device in a wired mode. The controller and the second wireless transceiver are arranged in the second cavity. The controller is configured to bi-directionally communicate with and/or provide power to the balancer through the wireless transceiving means. Among the above-mentioned domestic appliance, required function can be realized to two wireless receiving and dispatching spares, when reducing hardware cost, can eliminate wireless instruction and to wireless instruction's influence under high rotational speed and sealed narrow and small environment, can improve instruction and/or power transmission's reliability moreover.

Description

Household electrical appliance

Technical Field

The utility model relates to an electrical apparatus technical field, more specifically speaking relates to a household appliance.

Background

At present, in the dehydration stage of a washing machine, the laundry in a washing cavity is unevenly distributed, so that the eccentric condition exists. When the washing chamber rotates at a high speed, a large vibration is generated. The balance ring is arranged on the washing cavity, the balance trolley capable of moving is arranged in the balance ring, and the eccentricity of clothes in the washing cavity can be balanced by controlling the movement of the balance trolley in the balance ring and depending on 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, in order to realize control over a plurality of balance cars, the wireless transceiver is installed on each balance car in the whole wireless system in the prior art, the signal transmission path is complex, the cost is high, the problems that the stability of a wireless instruction is affected due to the fact that the installation of the wireless transceiver in the balance car is easily limited by the structure and the like exist, and the stability of wireless communication of the balance car after the balance car is sealed in the balance ring can be further reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses embodiment provides a domestic appliance.

The utility model discloses embodiment's a domestic appliance, include:

a controller;

a balancer;

the wireless transceiver comprises a first wireless transceiver, a repeater and a second wireless transceiver, and the controller is connected with the second wireless transceiver;

the balancer is positioned in the cavity;

the balancing body, the repeater and the first wireless transceiver are arranged in the first cavity, and the repeater is connected with the first wireless transceiver and the balancer in a wired mode; and

the first cavity can be rotatably connected with the second cavity, and the controller and the second wireless transceiver are arranged in the second cavity;

the controller is configured to bi-directionally communicate with and/or provide power to the balancer through the wireless transceiving device.

Among the above-mentioned domestic appliance, the controller passes through wireless transceiver and balancer two-way communication and/or to the balancer power supply, and wireless transceiver includes the repeater, and two wireless transceivers can realize required function like this, when reducing hardware cost, can eliminate wireless instruction and to wireless instruction's influence under high rotational speed and sealed narrow and small environment, the repeater is connected with the balancer through wired mode, can improve instruction and/or electric energy transmission's reliability like this.

In some embodiments, the first cavity comprises a first end and a second end along the axis of rotation of the first cavity, the second cavity comprises a third end and a fourth end along the axis of rotation of the first cavity, the first end corresponds to the third end, and the second end corresponds to the fourth end;

the first wireless transceiver is arranged at the first end and the second wireless transceiver is arranged at the third end; or

The first wireless transceiver is disposed at the second end and the second wireless transceiver is disposed at the fourth end.

In some embodiments, the first end is a front end of the first cavity, the second end is a rear end of the first cavity, and the repeater is disposed at the second end of the first cavity.

In some embodiments, the home appliance includes at least two balancers, and the controller is configured to communicate with the at least two balancers through the wireless transceiving means at least two preset timings.

In some embodiments, each balancer corresponds to identification information, and the preset time sequence corresponds to the identification information one to one;

when a movement instruction including the identification information sent by the controller is received and a balancer corresponding to the identification information is in current preset time sequence communication, the wireless transceiver is configured to send the movement instruction to the corresponding balancer;

when the balancer in the current preset time sequence communication receives the movement instruction, the balancer is configured to move according to the movement instruction and feed back current position information of the balancer to the controller through the wireless transceiving device.

In some embodiments, in the case that the movement instruction is not received or a movement instruction including the identification information is received, and a balancer corresponding to the identification information is not in communication with a current preset timing sequence, the wireless transceiver is configured to send a position instruction to the balancer in communication with the current preset timing sequence;

in a case where the balancer in the current preset timing communication receives the position instruction, the balancer is configured to feed back current position information of the balancer to the controller through the wireless transmitting and receiving device.

In some embodiments, the inner wall of the chamber is provided with a rail structure, the rail structure comprises a rail, the balancer comprises a brush wire structure, the brush wire structure comprises brush wires, the repeater is connected with the rail through a lead, and the brush wires are electrically connected with the rail in a relatively sliding mode.

In some embodiments, the rail comprises an electrically conductive rail, the brush filaments comprise electrically conductive brush filaments, the conductor comprises a power supply line, and the electrically conductive rail connects the power supply line and the electrically conductive brush filaments; and/or

The guide rail includes the communication guide rail, the brush silk includes the communication brush silk, the wire includes the signal line, the communication guide rail is connected the signal line with the communication brush silk.

In some embodiments, the household appliance comprises an identification member and a displacement detection member;

in a case where the balancer moves in the chamber, the marker moves relative to the displacement detecting member, the displacement detecting member detects the number of times the marker passes the displacement detecting member, and the number of times the marker passes the displacement detecting member is related to the position of the balancer.

In some embodiments, the household appliance comprises a calibration piece and a calibration detection piece;

in a case where the balancer moves in the chamber, the correcting member moves relative to the correction detecting member for detecting the correcting member to eliminate a position error of the balancer.

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

fig. 2 is a schematic structural diagram of a household appliance according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a relay according to an embodiment of the present invention;

fig. 4 is an exploded view of the first chamber and the balance according to the embodiment of the present invention;

fig. 5 is a schematic view of a part of the structure of the household appliance according to the embodiment of the present invention;

fig. 6 is a schematic structural view of a balancer according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a part of circuit connection of the household appliance according to the embodiment of the present invention;

fig. 8 is a schematic diagram of a communication mode between a controller and a balancer according to an embodiment of the present invention;

fig. 9 is an enlarged schematic view of section viii of fig. 5.

Description of the main element symbols:

a household appliance 1000;

a first cavity 200, a first end 201, a second end 202, a second cavity 300, a third end 301 and a fourth end 302;

balance body 10, chamber 13, inner wall 131;

the balancer 20, the power part 21, the driving part 211, the coupling gear 212, the body 22, the balance controller 23, the brush filament structure 24, the brush filament 241, the conductive brush filament 2411, the communication brush filament 2412 and the brush filament seat 242;

a tooth portion 30;

a rail structure 40, a rail 41, a conductive rail 411, a communication rail 412;

a wireless transceiver 50, a first wireless transceiver 51, a first antenna 511, a second wireless transceiver 52, a second antenna 521, a repeater 53, a wire 54, a power supply line 541, and a signal line 542;

controller 60, marker 70, displacement detection piece 80, correction piece 90, correction detection piece 110.

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 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, 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 limited otherwise.

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 disclosure of the present invention provides many different embodiments or examples for implementing different structures of the present 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 and 2, a household appliance 1000 according to an embodiment of the present invention includes a controller 60, a balancer 20, a wireless transceiver 50, a balancer 10, a first cavity 200, and a second cavity 300. The first chamber 200 is rotatably connected to the second chamber 300. The radio 50 comprises a first radio 51, a repeater 53 and a second radio 52. The controller 60 is connected to the second radio transceiver 52. An annular chamber 13 is provided in the balance body 10, and a balancer 20 is provided in the chamber 13. The balance body 10, the repeater 53 and the first wireless transceiver 51 are disposed in the first chamber 200, and the repeater 53 connects the first wireless transceiver 51 and the balance 20 by wire. The controller 60 and the second wireless transceiver 52 are disposed in the second chamber 300. The controller 60 is configured to bi-directionally communicate with the balancer 20 and/or to provide power to the balancer 20 through the wireless transceiving device 50.

In the household appliance 1000, the controller 60 is in bidirectional communication with the balancer 20 and/or supplies power to the balancer 20 through the wireless transceiver 50, the wireless transceiver 50 includes the repeater 53, so that the two wireless transceivers can realize required functions, the hardware cost is reduced, meanwhile, the influence of a wireless command on the wireless command in a high-speed and sealed narrow environment can be eliminated, and the repeater 53 is connected with the balancer 20 in a wired mode, so that the reliability of command and/or power transmission can be improved.

It is understood that the controller 60 is connected to the second wireless transceiver 52, the first wireless transceiver 51 is connected to the repeater 53, the repeater 53 is connected to the balancer 20, and the second wireless transceiver 52 and the first wireless transceiver 51 can communicate wirelessly. Specifically, the controller 60 transmits the related information to the balancer 20 through the second wireless transceiver 52, the first wireless transceiver 51, and the repeater 53. The balancer 20 may transmit related information to the controller 60 through the repeater 53, the first wireless transceiver 51, and the second wireless transceiver 52. An external power source (not shown) is connected to the repeater 53, and the controller 60 may control the repeater 53 to convert the external power source into a stable power source through the second wireless transceiver 52 and the first wireless transceiver 51 and supply power to the balancer 20. In this way, the controller 60 can bidirectionally communicate with the balancer 20 through the wireless transmitting and receiving device 50; or to power the balancer 20 through the wireless transceiving device 50; or bi-directionally communicate with the balancer 20 and supply power to the balancer 20 through the wireless transceiving device 50.

In one embodiment, a power switch (not shown) may be disposed between the external power source and the repeater 53, or a power switch may be disposed between the repeater 53 and the balancer 20, and the controller 60 may send a command to the repeater 53 through the second wireless transceiver 52 and the first wireless transceiver 51 to control the power switch, so as to control whether the power circuit is turned on or off, and further, when the balancer 20 needs to supply power, the repeater 53 may convert the external power source into a stable power source and supply power to the balancer 20. In another embodiment, the balancer 20 is provided with a balancing controller 23 and a power supply switch, the controller 60 can send a command to the balancing controller 23 through the second transceiver 52, the first transceiver 51 and the repeater 53, and the balancing controller 23 controls the power supply switch to operate, so as to control the conduction or non-conduction of the power supply circuit.

It should be noted that, in the embodiment of the present invention, the external power source may be a power source converted from the commercial power by the household electrical appliance 1000, and may be transmitted to the relay 53 through the wireless power transmission device. Specifically, the wireless power transmission device includes a transmitting element and a receiving element. The transmitter comprises a connected transmitting coil and a transmitting circuit board, and the receiver comprises a connected receiving coil and a receiving circuit board. Wherein, the transmitting coil and the receiving coil are oppositely arranged, the transmitting circuit board is arranged on the second cavity 300 to convert the commercial power into the power, and the receiving circuit board is connected with the repeater 53. The repeater 53, the receiving circuit board and the receiving coil are all disposed in the first chamber 200, and the relative positions of the repeater 53 and the receiving circuit board are maintained, so that the repeater 53 and the receiving circuit board can be connected by a wire without being affected by the rotation of the first chamber 200. The transmitting coil is used for generating a changing magnetic field when being electrified, and the receiving coil is used for generating induction current when the changing magnetic field is induced. In this way, when the power supply circuit is turned on, the relay 53 can convert the induced current generated by the wireless power transmission device into a stable power supply and supply the stable power supply to the balancer 20.

Specifically, in the utility model discloses an in the implementation, the setting of transmitter of wireless power transmission device is on second cavity 300, and the setting of receiving the piece is at first cavity 200, and transmitting coil and receiving coil set up relatively along the axis of rotation interval of first cavity 200. In this way, the transmitting coil and the receiving coil may also be maintained to be oppositely disposed when the first chamber 200 is rotated, so that power may be supplied to the repeater 53 through the transmitting coil and thus the balancer 20 when the first chamber 200 is rotated.

In one example, the receiving device of the wireless power transmission apparatus may be integrally provided in the repeater 53, and the first wireless transceiver 51 may also be integrally provided in the repeater 53, that is, when the transmitting coil is energized, an induced current may be formed in the repeater 53 to supply power to the repeater 53 and the gimbal 20, and the repeater 53 may transmit a wireless signal to the controller 60 through the first wireless transceiver 51 or receive a wireless signal generated by the controller 60 to enable bidirectional communication between the balancer 20 electrically connected to the repeater 53 and the controller 60.

Specifically, referring to fig. 3, in an example, the repeater 53 may include a wireless power receiving module 531 (i.e., a receiving element of the wireless power transmitting device), a wireless transceiving module 532 (i.e., a first transceiving element), a transceiver 533, and a control unit 534 (e.g., a microprocessor, MCU), wherein the wireless power receiving module 531, the wireless transceiving module 532, the transceiver 533, and the control unit 534 are disposed on a circuit board of the repeater 53 and electrically connected to each other.

The wireless power receiving module 532 receives power by interfacing with a wireless power transmitting module (i.e., the above-described transmitter), converts the power into a stable power, and then supplies the power to the repeater 53, and transfers the converted power to the balancer 20 to supply the power to the balancer 20. The wireless transceiving module 532 is used for performing wireless transceiving communication with the controller 60, receiving a signal transmitted from the controller 60, and transmitting a signal fed back from the balancer 20 to the controller 60. Transceiver 533 may be in wired transceiving communication with balancer 20 via a transceiving protocol, for example, transceiver 533 may be an RS485 transceiver, which may be in wired transceiving communication with balancer 20 via an RS485 protocol.

The control unit 534 is used for performing the overall control function of the repeater 53, and specifically, the control unit 534 is integrated with a wireless transceiving protocol, so that the control unit 534 can perform signal communication with the controller 60 through a prescribed signal format and timing. In addition, the control unit 534 is integrated with a transmission/reception protocol for communicating with the balancers 20, for example, with an RS485 transmission/reception protocol, and the control unit 534 can transmit/receive signals to/from each balancer 20 according to a predetermined signal format and timing. In addition, the control unit 534 may also convert the control signal received through wireless according to the RS485 protocol signal format and transmit the converted signal to the balancer 20 through the RS485 protocol, and convert the balancer 20 signal received through the RS485 protocol according to the wireless transceiving protocol signal format and transmit the converted signal to the controller 60 through the wireless signal protocol, thereby implementing bidirectional communication between the balancer 20 and the controller 60. In addition, in some embodiments, the control unit 534 may further have a fault detection function, for example, monitor wireless transceiving abnormalities, including wireless link interruption, received signal error, repeated reception, and the like, and perform an exception handling when the abnormality is monitored, so as to ensure integrity of the transceiving signals. For another example, the communication abnormality with each balancer 20 is monitored, including communication interruption with the balancer 20, no reception response, reception signal error, repeated reception, and the like, and when the abnormality is monitored, abnormality processing is performed to ensure the integrity of the transmission and reception signal. For another example, the monitoring of power supply abnormality includes input abnormality (voltage is too low, etc.) of the wireless power supply receiving module 532, and power supply output abnormality (short circuit, etc.) of the balancer 20, and when abnormality is monitored, an abnormality alarm is sent to the controller 60, and meanwhile, abnormality protection is performed, so that system safety is ensured.

In some embodiments, the balancer 20 is provided with a battery, the balancer 20 may operate by the battery provided therein in the case that the external power supply does not supply power to the balancer 20, and in the case that the battery level is lower than a threshold, the balancer 20 sends a power supply instruction to the controller 60 so that the controller 60 may control the power supply switch to be closed, thereby turning on the external power supply to charge and supply power to the battery of the balancer 20. In other embodiments, the first chamber 200 may be mounted with a battery, which may be connected to each balancer 20, and power may be supplied from the battery to each balancer 20. Each balancer 20 may compare the charge of the battery with a threshold value, and in the case where the charge of the battery is below the threshold value, the balancer 20 sends a power supply instruction to the controller 60 so that the controller 60 may control the power supply switch to be closed to charge the battery. Still alternatively, the balancer 20 may transmit the power level of the battery to the controller 60 through the wireless transmitting and receiving device 50, and the controller 60 transmits a power supply instruction to close the power supply switch in a case where it is determined that the power level of the battery is lower than the threshold value.

In the present invention, the household appliance 1000 may be a laundry treating appliance such as a washing machine, a dryer, or other household appliances 1000 having the first cavity 200 that can rotate. The load can be clothes, quilts and other objects needing to be cleaned. When the household appliance 1000 operates, the first cavity 200 rotates at a high speed (for example, the rotating speed exceeds 800r/min), and the load in the first cavity 200 is easily distributed unevenly, so that the first cavity is eccentric. When the first chamber 200 rotates at a high speed, the household appliance 1000 may generate a large vibration. Referring to fig. 4-6, the balance body 10 is connected and fixed to the first chamber 200, and rotates with the first chamber 200. Accordingly, the movement of the balancer 20 in the balancing body 10 can be controlled by the controller 60, and the eccentric mass when the first chamber 200 rotates is offset or reduced by means of the self-gravity and centripetal force of the balancer 20, so that the vibration of the home appliance 1000 can be reduced.

Referring to fig. 5 and 6, the balancer 20 includes a power member 21, a body 22, and a balance controller 23, and the power member 21 and the balance controller 23 are provided in the body 22. The balance controller 23 is used to control the power unit 21 to drive the balancer 20 to move in the chamber 13. Specifically, the power unit 21 includes a driving member 211 and a coupling gear 212, and the driving member 211 is connected to the coupling gear 212. The inner wall 131 of the chamber 13 is provided with an annular toothing 30, and the coupling gear 212 meshes with the toothing 30. Thus, the coupling gear 212 can be driven to rotate by controlling the driving member 211, and the balancer 20 can be moved in the chamber 13 by the rotating coupling gear 212 since the coupling gear 212 is engaged with the teeth 30.

In the embodiment shown in fig. 2, the first chamber 200 is rotatably provided in the second chamber 300. It is understood that in other embodiments, the first cavity 200 and the second cavity 300 may be connected in other manners, and are not limited in particular. In the present embodiment, the household appliance 1000 is a washing machine, which can be used to wash clothes, and the clothes are placed in the first cavity 200. The first chamber 200 is a washing chamber (inner tub), the second chamber 300 is a water chamber (outer tub), the water chamber and the washing chamber are cylindrical, the washing chamber is rotatably disposed in the water chamber, and the water chamber and the washing chamber are disposed in a casing (not shown). The washing chamber may have a rotation axis X arranged horizontally, obliquely or vertically. That is, the axis of rotation X of the washing chamber is parallel, inclined or perpendicular to the horizontal plane. It will be appreciated that one or more balance bodies 10 may be provided at any position of the washing chamber, and the balance bodies 10 rotate with the rotation of the washing chamber. The central axis of the balancing body 10 is parallel to or coincident with the rotation axis X of the washing chamber, that is, the balancing body 10 may be disposed coaxially with the washing chamber or eccentrically with respect to the washing chamber. The balance 10 may also be spirally arranged on the washing chamber.

Referring to fig. 2, in some embodiments, the first cavity 200 includes a first end 201 and a second end 202 along the rotation axis X of the first cavity 200, the second cavity 300 includes a third end 301 and a fourth end 302 along the rotation axis X of the first cavity 200, the first end 201 corresponds to the third end 301, and the second end 202 corresponds to the fourth end 302. A first radio 51 is arranged at the first end 201 and a second radio 52 is arranged at the third end 301; or the first radio 51 at the second end 202 and the second radio 52 at the fourth end 302.

Thus, the first wireless transceiver 51 and the second wireless transceiver 52 are respectively arranged at the corresponding end positions, so that the wireless transceiving signals can obtain a better transmission space, and the transmission effect is good. In the embodiment of the present invention, the first wireless transceiver 51 includes a first antenna 511, and the second wireless transceiver 52 includes a second antenna 521. The first antenna 511 and the second antenna 521 may transmit wireless signals to each other. In order to further ensure the signal transmission effect, the first wireless transceiver 51 and the second wireless transceiver 52 are substantially correspondingly arranged at the installation positions of the first cavity 200 and the second cavity 300. Specifically, it can be understood that the projection of the first wireless transceiver 51 in the second cavity 300 is partially overlapped or substantially overlapped with the installation position of the second wireless transceiver 52 in the second cavity 300; or the projection of the second wireless transceiver 52 on the first cavity 200 is partially overlapped or substantially overlapped with the installation position of the first wireless transceiver 51 on the first cavity 200.

Further, the first end 201 is a front end of the first cavity 200, the second end 202 is a rear end of the first cavity 200, and the relay 53 is disposed at the second end 202 of the first cavity 200. In this way, the installation of the relay 53 is facilitated, and heat can be dissipated to the relay 53 by using the airflow caused when the first chamber 200 rotates. In the illustrated embodiment, the repeater 53 and the first wireless transceiver 51 are mounted at the second end 202 (rear end) of the first cavity 200, and the controller 60 and the second wireless transceiver 52 are mounted at the fourth end 302 (rear end) of the second cavity 300.

It is understood that the household appliance 1000 includes a power device (not shown) for driving the first chamber 200 to rotate. The first end 201 (front end) generally refers to the end facing the user, while the power unit is generally mounted at the second end 202 (rear end). The power device comprises a driving motor and a belt pulley. The driving motor is connected with the belt pulley, the belt pulley is connected with the second end 202, and the driving motor drives the belt pulley to drive the first cavity 200 to rotate. The repeater 53, the first wireless transceiver 51 and the wireless receiving board may be mounted on a pulley. Thus, the repeater 53, the first transceiver 51 and the wireless receiving board are arranged at the second end 202 of the first cavity 200, and the repeater 53, the first transceiver 51 and the wireless receiving board rotate along with the rotation of the first cavity 200, and the relative positions of the repeater 53, the first transceiver 51 and the wireless receiving board are kept unchanged and are not influenced by the rotation of the first cavity 200. The controller 60 and the second transceiver 52 may be mounted on the outer surface of the fourth end 302 of the second cavity 300, and correspondingly, an opening may be formed at the position where the second transceiver 52 is mounted on the second cavity 300, so that the second transceiver 52 and the first transceiver 51 can transmit signals without being obstructed. Of course, the controller 60 may be disposed on the outer surface of the fourth end 302 of the second cavity 300, and the second transceiver 52 may be disposed on the inner surface of the fourth end 302.

Referring to fig. 5-7, in some embodiments, the inner wall 131 of the chamber 13 is provided with a rail structure 40, and the rail structure 40 includes a rail 41. The balancer 20 includes a filament arrangement 24, and the filament arrangement 24 includes filaments 241. The relay 53 is connected to the rail 41 via a wire 54, and the brush filament 241 is electrically connected to the rail 41 so as to be slidable relative thereto.

In this way, the wired electrical connection of the relay 53 and the balancer 20 is achieved by the electrical connection of the rail 41 and the brush wire 241. It can be understood that the balancer 20 is powered by the brush wires 241, which requires fewer components, has excellent conductivity depending on the electrical connection of the brush wires 241 with the guide rails 41, and can secure the reliability of power supply and/or communication. Preferably, the brush filaments 241 are elastically and electrically connected with the guide rail 41, so that the reliability of power supply and/or communication can be further ensured.

In one embodiment, the brush filaments 241 have elasticity, and can stably adhere to the guide rail 41 by virtue of the pre-tightening force of the brush filaments 241, so that the brush filaments 241 are stably and electrically connected with the guide rail 41 without additional components for providing the pre-tightening force. The brush wire 241 may be made of copper-silver alloy with better conductivity, and the guide rail 41 may be made of copper guide rail 41. In another embodiment, the elastic guide rail 41 may be used to electrically connect the brush filaments 241, so as to ensure the reliability of the electrical connection between the brush filaments 241 and the guide rail 41.

In one embodiment, the brush wires 241 may be provided at the wire holders 242, and the wire holders 242 are mounted at the body 22 of the balancer 20. The rail structure 40 may comprise a rail 41 and a rail seat (not shown), the rail 41 being arranged in the rail seat, the rail seat being arranged in the inner wall 131 of the chamber 13. In other embodiments, the filament mount 242 may be omitted from the filament arrangement 24, and the filaments 241 may be provided directly to the body 22 of the balancer 20. The rail structure 40 may omit the rail housing and the rail 41 may be directly provided on the inner wall 131 of the chamber 13.

Referring to fig. 5 and 7, in some embodiments, the track 41 includes a conductive track 411, the brush filament 241 includes a conductive brush filament 2411, the conductor 54 includes a supply line 541, and the conductive track 411 connects the supply line 541 and the conductive brush filament 2411; and/or track 41 includes communication track 412, brush filament 241 includes communication brush filament 2412, conductor 54 includes signal line 542, and communication track 412 connects signal line 542 with communication brush filament 2412. In this manner, a power and/or communication connection of the balancer 20 is achieved.

It will be appreciated that in embodiments where the controller 60 communicates bi-directionally with the balancer 20 via the wireless transceiver 50, the track 41 includes the communication track 412, the brush filaments 241 include the communication brush filaments 2412, the conductors 54 include the signal lines 542, and the communication track 412 connects the signal lines 542 with the communication brush filaments 2412.

In embodiments where the controller 60 supplies power to the balancer 20 via the wireless transceiver 50, the rail 41 includes a conductive rail 411, the brush filament 241 includes a conductive brush filament 2411, the conductor 54 includes a power supply line 541, and the conductive rail 411 connects the power supply line 541 and the conductive brush filament 2411.

In an embodiment where controller 60 communicates bi-directionally with balancer 20 and supplies power to balancer 20 via wireless transceiver 50, rail 41 includes a conductive rail 411 and a communication rail 412, brush filament 241 includes a conductive brush filament 2411 and a communication brush filament 2412, conductor 54 includes a power supply line 541 and a signal line 542, conductive rail 411 connects power supply line 541 and conductive brush filament 2411, and communication rail 412 connects signal line 542 and communication brush filament 2412.

In the embodiment of the present invention, the first end 201 and the second end 202 of the first chamber 200 are respectively connected to a balance body 10. At least one balancer 20 is disposed in the chambers 13 of the two balancing bodies 10, and the inner wall 131 of each chamber 13 is provided with a guide rail structure 40. The rail 41 includes two communication rails 412 and two conductive rails 411, and correspondingly, the lead 54 includes two signal lines 542 and two power supply lines 541, and the brush filament 241 of each balancer 20 includes two communication brush filaments 2412 and two conductive brush filaments 2411. One of the signal lines 542 connects one of the communication rails 412 of each balance body 10, and the other signal line 542 connects the other communication rail 412 of each balance body 10. One of the power supply lines 541 is connected to one of the conductive rails 411 of each balance body 10, and the other power supply line 541 is connected to the other conductive rail 411 of each balance body 10. The two communication brush filaments 2412 of each balancer 20 are connected with the two communication guide rails 412 of the balancer 10 where the two communication brush filaments 2412 are located one by one, the two communication brush filaments 2412 are connected with the corresponding communication guide rails 412 in series on a circuit, the two conductive brush filaments 2411 of each balancer 20 are connected with the two conductive guide rails 411 of the balancer 10 where the two conductive brush filaments 2411 are located one by one, and the conductive brush filaments 2411 are connected with the corresponding conductive guide rails 411 in series on a circuit.

In some embodiments, the home appliance 1000 includes at least two balancers 20, and the controller 60 is configured to communicate with the at least two balancers 20 through the wireless transceiving means 50 at least two preset timings. In this way, the controller 60 and the balancers 20 communicate in a time-sharing manner, and at least two balancers 20 can share the same communication line, thereby preventing the occurrence of confusion in signal transmission.

It is understood that each balancer 20 is associated with identification Information (ID), and the preset timings and the identification information are in one-to-one correspondence. At each preset timing, the controller 60 communicates with the balancer 20 corresponding to the identification information. Referring to fig. 4, the household appliance 1000 is a drum washing machine. The first chamber 200 has a rotation axis X disposed horizontally. A balance body 10 is connected to each of the first and second ends 201 and 202 of the first chamber 200. In the embodiment shown in fig. 4, the balance body 10 has a circular ring shape, and the balance body 10 may be referred to as a balance ring. It is understood that in other embodiments, the balancing body 10 may have other shapes, such as a plate shape, a square ring shape, an elliptical ring shape, etc., and is not particularly limited thereto. Two balancers 20 are provided in the chamber 13 of each balance body 10, and the initial balancing positions of the two balancers 20 are arranged at 180 degrees symmetry, which allows the first chamber 200 to be balanced in an unloaded state.

Hereinafter, a detailed description will be given taking an example in which the home appliance 1000 includes four balancers 20. Referring to fig. 8, identification information corresponding to the four balancers 20 in the cavities 13 of the two balancing bodies 10 is represented as A, B, C and D, respectively, the balancer 20 identified as a and the balancer 20 identified as B are located in the cavity 13 of one of the balancing bodies 10, and the balancer 20 identified as C and the balancer 20 identified as D are located in the cavity 13 of the other balancing body 10. Correspondingly, the at least two preset time sequences include a first preset time sequence T1, a second preset time sequence T2, a third preset time sequence T3 and a fourth preset time sequence T4, the first preset time sequence T1 corresponds to the identification information a, the second preset time sequence T2 corresponds to the identification information B, the third preset time sequence T3 corresponds to the identification information C, and the fourth preset time sequence T4 corresponds to the identification information D. The first predetermined timing T1, the second predetermined timing T2, the third predetermined timing T3 and the fourth predetermined timing T4 are one period. The controller 60 communicates with the four balancers 20, respectively, by sequentially cycling through a first preset timing T1, a second preset timing T2, a third preset timing T3, and a fourth preset timing T4. It should be noted that the first preset time sequence T1, the second preset time sequence T2, the third preset time sequence T3 and the fourth preset time sequence T4 have the same duration. It is understood that the identification information may be expressed in other manners, and is not limited to the above expression manner, and is not limited specifically herein.

Specifically, the controller 60 transmits a movement instruction containing identification information to the relay 53 through the second wireless transceiver 52 and the first wireless transceiver 51. Therefore, in the case where a movement instruction including identification information transmitted by the controller 60 is received and the balancer 20 to which the identification information corresponds is in current preset timing communication, the radio transmitting and receiving apparatus 50 is configured to transmit the movement instruction to the corresponding balancer 20. In the case where the balancer 20, which is in current preset time-series communication, receives the movement instruction, the balancer 20 is configured to move according to the movement instruction and feed back the current position information of the balancer 20 to the controller 60 through the wireless transmitting and receiving device 50. In this manner, control and position feedback of the balancer 20 in the current preset timing communication are realized.

In the case where a movement instruction is not received or a movement instruction including identification information transmitted by the controller 60 is received and the balancer 20 corresponding to the identification information is not in the current preset timing communication, the wireless transmitting and receiving device 50 is configured to transmit a position instruction to the balancer 20 in the current preset timing communication. In the case where the balancer 20, which is in current preset timing communication, receives the position instruction, the balancer 20 is configured to feed back current position information of the balancer 20 to the controller 60 through the wireless transmitting and receiving device 50. In this manner, the position feedback of the balancer 20 in the current preset timing communication is realized.

It is to be understood that, in one embodiment, the controller 20 may send the movement instruction or the position instruction to the relay 53 according to a preset timing, and the relay 53 sends the movement instruction or the position instruction to the corresponding balancer. In another embodiment, the controller 20 may send a movement instruction including the identification information to the relay 53, and the relay 53 sends the movement instruction to the balancer 20 corresponding to the identification information or sends a position instruction to the other balancers 20 according to a preset timing. It should be noted that, in each preset timing, the repeater 53 communicates with the corresponding balancer 20 in a half-duplex manner.

In one example, the controller 60 communicates with the balancer 20 identified by a at a first preset timing T1, and when the balancer 20 identified by a needs to move, the controller 60 sends a movement command including the identification information a to the repeater 53 through the second wireless transceiver 52 and the first wireless transceiver 51, and the repeater 53 sends the movement command including the identification information a to the balancer 20 identified by a. After receiving the movement command, the balancer 20 identified by the identifier a feeds back the current position information of the balancer 20 to the repeater 53, and the repeater 53 transmits the current position information of the balancer 20 identified by the identifier a to the controller 60 through the first wireless transceiver 51 and the second wireless transceiver 52. In addition, when the balancer 20 whose identification information is a determines that the identification information included in the received movement command matches its own identification information, it moves in accordance with the movement command. The movement instruction may include a movement direction and a distance, etc.

In the second preset timing T2, the controller 60 communicates with the balancer 20 whose identification information is B, and in the case where the balancer 20 whose identification information is B does not need to move, the controller 60 may not need to send a movement instruction, and at this time, the repeater 53 sends a position instruction to the balancer 20 whose identification information is B. After receiving the position command, the balancer 20 identified by the identifier B feeds back its current position information to the repeater 53, and the repeater 53 transmits the current position information of the balancer 20 identified by the identifier B to the controller 60 through the first wireless transceiver 51 and the second wireless transceiver 52. By analogy, the communication of the controller 60 with the balancers 20 is cycled in sequence according to a preset timing. In this way, movement instructions and current position information of each balancer 20 may be interacted between the controller 60 and the balancers 20. In other embodiments, other information and other instructions may be further exchanged between the controller 60 and the balancer 20, for example, the other information may include information of a battery supplying power to the balancer 20, a rotation speed of the first cavity 200, the battery information may include power, voltage, current, temperature, etc., and the other instructions may include a charging instruction, etc.

Referring to fig. 5 and 9, in some embodiments, the household appliance 1000 includes a marker 70 and a displacement detector 80. In the case where the balancer 20 moves in the chamber 13, the marker 70 and the displacement detecting member 80 relatively move, the displacement detecting member 80 serves to detect the number of times the marker 70 passes the displacement detecting member 80, and the number of times the marker 70 passes the displacement detecting member 80 is related to the position of the balancer 20. In this way, the displacement detecting member 80 can detect the number of times the marker 70 passes the displacement detecting member 80, 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 case where the balancer 20 moves in the chamber 13, the marker 70 and the displacement sensing member 80 relatively move to pass the displacement sensing member 80, and the number of times the marker 70 passes the displacement sensing member 80 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 70 passes the displacement detection member 80, and the position of the balancer 20 can be determined in combination with the initial balancing position of the balancer 20.

Specifically, the teeth of the coupling gear 212 may be utilized as the marker 70, so that the marker 70 may not be additionally provided. Of course, the teeth of the tooth system 30 can also be used as the identifier 70. The displacement detecting member 80 includes at least one of a light sensor, a hall sensor, and an ultrasonic sensor. Hereinafter, the details will be described by taking the teeth of the coupling gear 212 as the indicator 70 and the displacement detector 80 as an optical sensor.

The teeth of the combination gear 212 are provided with grooves, and the teeth and the grooves are uniformly distributed in a staggered manner. The coupling gear 212 is engaged with the tooth portion 30 to rotate, and the balancer 20 is moved by the rotation of the coupling gear 212. In this case, the teeth of the coupling gear 212 may serve as the identification member 70, and accordingly, the displacement sensing member 80 may be installed at a position on the balancer 20 opposite to the teeth or grooves of the coupling gear 212. When the coupling gear 212 rotates, the displacement detecting member 80 is relatively stationary. During the rotation of the coupling gear 212, the teeth and grooves of the coupling gear 212 pass the displacement sensing member 80 continuously and alternately, and thus, the number of times the teeth of the coupling gear 212 pass the displacement sensing member 80, that is, the number of teeth of the coupling gear 212 pass the displacement sensing member 80, can be sensed. It will be appreciated that in other embodiments, a groove between two teeth may also be used as the identifier 70.

In the case where the displacement detecting member 80 is an optical sensor, the optical sensor includes a light emitting element and a light receiving element, and the light emitting element and the light receiving element may be disposed on the same side of the coupling gear 212 or on opposite sides of the coupling gear 212, respectively. The teeth of the coupling gear 212 have a shielding effect on the light emitted from the light emitting member, and the grooves have no shielding effect on the light emitted from the light emitting member. In the case where the light emitting element and the light receiving element are provided on the same side of the coupling gear 212, the light receiving element may receive a strong light signal intensity reflected from the teeth, and no light signal intensity reflected from the grooves, or a weak light signal intensity reflected from the grooves (possibly due to light reflected from other components than the grooves), and regular pulse signals may be obtained through processing by the balance controller 23, the number of pulses is the number of teeth rotated by the coupling gear 212, so that the moving distance of the balancer 20 may be obtained, and the current position of the balancer 20 may be obtained in combination with the initial balance position of the balancer 20. In the case where the light emitting element and the light receiving element are respectively disposed on opposite sides of the coupling gear 212, the light receiving element may receive a strong light signal intensity passing through the recess, receive no or weak light signal intensity due to the light shielding by the teeth, and may process regular pulse signals through the balance controller 23, the number of pulses being the number of teeth rotated by the coupling gear 212, thereby obtaining a moving distance of the balancer 20, and then obtaining a current position of the balancer 20 in combination with an initial balance position of the balancer 20. In one example, the light emitting element may be a light emitting diode and the light receiving element may be a photodiode. The light emitting diode may emit infrared light or visible light.

In other embodiments, alternate black and white stripes may be used as the markers 70, and correspondingly, the displacement detectors 80 may be photo sensors.

In the case where the displacement detector 80 is an ultrasonic sensor, the principle of detecting the position of the balancer 20 is similar to that of the optical sensor described above. In the case where the displacement detecting member 80 is a hall sensor, the identification member 70 is the teeth of the coupling gear 212, and since the teeth and grooves of the coupling gear 212 affect the direction of the magnetic lines of force of the hall sensor, the density of the magnetic lines of force passing through the hall sensor is changed. When the coupling gear 212 rotates, the hall sensor outputs regular pulse signals, and the number of teeth of the coupling gear 212 rotating can be calculated from the pulse signals, whereby the moving distance of the balancer 20 can be obtained, and the current position of the balancer 20 can be obtained in combination with the initial balance position of the balancer 20.

In the present embodiment, the chamber 13 is provided with an initial equilibrium position. The balance controller 23 is electrically connected to the displacement detecting member 80, and the balance controller 23 is configured to determine the current position of the balancer 20 based on the number of times the identifier 70 passes the displacement detecting member 80 and the initial balance position. In this manner, determination of the current position of the balancer 20 is facilitated.

It is understood that the initial balancing position of the balancer 20 may refer to a default position when the balancer 20 is stationary within the chamber 13, and when the balancer 20 is located at the position, the balancer 20 does not cause eccentricity of the first chamber 200, preventing unnecessary vibration from being introduced when the first chamber 200 rotates. The balance controller 23 records an initial balance position, and determines the current position of the balancer 20 by combining the distance moved by the balancer 20 when the balancer 20 starts to move from the initial balance position. Specifically, the displacement detector 80 may output regular pulse signals according to the number of times that the identifier 70 passes through the displacement detector 80, the balance controller 23 receives the pulse signals output by the displacement detector 80, processes the pulse signals to obtain the moving distance of the balancer 20, and finally calculates the current position of the balancer 20 by combining the initial balance position of the balancer 20. The current position information of the balancer 20 may be transmitted to the controller 60.

In embodiments of the present invention, a plurality (two or more) of initial equilibrium positions may be provided in the chamber 13. In the case where there are a plurality of balancers 20 (two or more) in the chamber 13, each initial balancing position is stopped with a corresponding one of the balancers 20. In one embodiment, two initial equilibrium positions are provided in the chamber 13, with the number of balancers 20 being two. Each of the initial equilibrium positions is statically stopped with one balancer 20 without driving the two balancers 20 to move. Preferably, the two initial equilibrium positions are arranged 180 degrees symmetrically. In this way, the balance body 10 can be balanced without driving the two balancers 20 to move, thereby maintaining the balance of the first chamber 200 and preventing unnecessary vibration from being introduced when the first chamber 200 rotates. In other embodiments, the number of the initial equilibrium positions may be three or more, and the specific positions may be set as needed, and are not particularly limited herein.

Referring to fig. 5, the balance assembly includes a calibration member 90 and a calibration detecting member 110. In the case where the balancer 20 moves in the chamber 13, the correcting member 90 moves relative to the correction detecting member 110, and the correction detecting member 110 detects the correcting member 90 to eliminate a position error of the balancer 20.

It is understood that, since the balancer 20 moves for a long time, an accumulated error may occur when the displacement sensing member 80 senses the number of times the identification member 70 passes the displacement sensing member 80. When the moving distance of the balancer 20 is calculated by the information of the number of times of error, an error occurs in the determined current position of the balancer 20. Therefore, the position error of the balancer 20 can be eliminated by providing the correcting member 90 and the correction detecting member 110.

Specifically, when the correction detecting member 110 passes each correcting member 90, information that it detects the correcting member 90 is transmitted to the balance controller 23. Further, the balance controller 23 acquires information on the position where the balancer 20 passes through the correcting element 90, and sets the position where the balancer 20 is located to a value of 0, which is used as a starting point to recalculate the moving distance of the balancer 20, so as to avoid 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 110 passes through each calibration member 90, the number of times that the displacement detecting member 80 detects the passing of the identification member 70 is fed back to the balance controller 23 again from 0 by way of the pulse signal, the moving distance of the balancer 20 by the balance controller 23 is calculated again, and the precise position information of the balancer 10 where the balancer 20 is located is obtained.

Referring to fig. 1, at least two correction pieces 90 are disposed at intervals on the inner wall 131 of the chamber 13, and each correction piece 90 includes a different number of correction portions. The correction detecting member 110 may be one of a light sensor, an ultrasonic sensor, and a hall sensor. The number of pulses of the pulse signals is the same as the number of the correction parts of the correction member 90, so that it can be determined from the pulse signals output from the correction detection member 110 that the balancer 20 passes through a certain correction member 90, thereby determining which initial balance position of the balancer 20 in the chamber 13. As such, the current position of the balancer 20 may be positioned within the chamber 13. In one example, the inner wall 131 of the chamber 13 is provided with one correcting member 90 every 60 degrees, and the number of the correcting portions is one, two, three, four, five, and six in the clockwise direction or the counterclockwise direction. In other embodiments, two, three or more than three correction members 90 may be provided on the inner wall 131 of the chamber 13, and each correction member 90 may include a different number of correction portions. The number and position of the correction pieces 90 and the number of correction portions of the correction pieces 90 may be adjusted according to circumstances, and are not limited to the above-described embodiment. It is understood that the correction portion may be a protrusion, or may be a region in which different color blocks are arranged. For example, the differently configured correction member 90 may include a different number of projections to output a corresponding different pulse signal. The correction member 90 having different structures may include regions having different color block arrangements, and in short, the signals output by the correction detection member 110 may be different, and the structural form of the correction member 90 is not particularly limited.

It should be noted that the positions where the two correction pieces 90 are located at an interval of 180 degrees may be used as the initial balance positions, and after the operation of the balancer 20 is completed, the balancer 20 may be returned to the initial balance position by the cooperation of the correction detection piece 110 and the correction piece 90, thereby resetting the balancer 20.

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 (10)

1. A household appliance, characterized in that it comprises:

a controller;

a balancer;

the wireless transceiver comprises a first wireless transceiver, a repeater and a second wireless transceiver, and the controller is connected with the second wireless transceiver;

the balancer comprises a balancing body, a rotating shaft and a rotating shaft, wherein an annular cavity is arranged in the balancing body;

the balancing body, the repeater and the first wireless transceiver are arranged in the first cavity, and the repeater is connected with the first wireless transceiver and the balancer in a wired mode; and

the first cavity can be rotatably connected with the second cavity, and the controller and the second wireless transceiver are arranged in the second cavity;

the controller is configured to bi-directionally communicate with and/or provide power to the balancer through the wireless transceiving device.

2. The household appliance according to claim 1, wherein the first cavity comprises a first end and a second end along the rotation axis of the first cavity, the second cavity comprises a third end and a fourth end along the rotation axis of the first cavity, the first end corresponds to the third end, and the second end corresponds to the fourth end;

the first wireless transceiver is arranged at the first end and the second wireless transceiver is arranged at the third end; or

The first wireless transceiver is disposed at the second end and the second wireless transceiver is disposed at the fourth end.

3. The household appliance according to claim 2, wherein the first end is a front end of the first cavity, the second end is a rear end of the first cavity, and the relay is disposed at the second end of the first cavity.

4. The household appliance according to claim 1, wherein the household appliance comprises at least two of the balancers, and the controller is configured to communicate with the at least two of the balancers through the wireless transceiving means at least two preset timings.

5. The household appliance according to claim 4, wherein each balancer corresponds to identification information, and the preset time sequence corresponds to the identification information one by one;

when a movement instruction including the identification information sent by the controller is received and a balancer corresponding to the identification information is in current preset time sequence communication, the wireless transceiver is configured to send the movement instruction to the corresponding balancer;

when the balancer in the current preset time sequence communication receives the movement instruction, the balancer is configured to move according to the movement instruction and feed back current position information of the balancer to the controller through the wireless transceiving device.

6. The household appliance according to claim 5, wherein in a case that the movement instruction is not received or a movement instruction including the identification information is received, and a balancer corresponding to the identification information is not in communication with a current preset timing sequence, the wireless transceiving means is configured to send a position instruction to the balancer in communication with the current preset timing sequence;

in a case where the balancer in the current preset timing communication receives the position instruction, the balancer is configured to feed back current position information of the balancer to the controller through the wireless transmitting and receiving device.

7. The household appliance according to claim 1, wherein the inner wall of the chamber is provided with a rail structure comprising a rail, the balancer comprises a brush wire structure comprising brush wires, the relay is connected to the rail by a wire, and the brush wires are electrically connected to the rail in a relatively slidable manner.

8. The household appliance according to claim 7, wherein the rail comprises an electrically conductive rail, the brush filaments comprise electrically conductive brush filaments, the wire comprises a power supply line, and the electrically conductive rail connects the power supply line and the electrically conductive brush filaments; and/or

The guide rail includes the communication guide rail, the brush silk includes the communication brush silk, the wire includes the signal line, the communication guide rail is connected the signal line with the communication brush silk.

9. The household appliance according to claim 1, wherein the household appliance comprises an identification member and a displacement detection member;

in a case where the balancer moves in the chamber, the marker moves relative to the displacement detecting member, the displacement detecting member detects the number of times the marker passes the displacement detecting member, and the number of times the marker passes the displacement detecting member is related to the position of the balancer.

10. The household appliance according to claim 1, characterized in that it comprises a correction member and a correction detection member;

in a case where the balancer moves in the chamber, the correcting member moves relative to the correction detecting member for detecting the correcting member to eliminate a position error of the balancer.

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