CN212388221U - Balance assembly and household appliance - Google Patents

Abstract

The utility model discloses a balanced subassembly and domestic appliance. The balancing assembly is used for household appliances. The balancing component comprises a balancing body, a balancer and a wire pulling device. An annular tooth portion. An annular cavity is arranged in the balancing body. The balancer is disposed within the chamber. The balancer includes a power member for driving the balancer to move within the chamber. The wire pulling device is arranged on the balancing body and comprises a winding mechanism and a wire, the wire is wound on the winding mechanism, the wire is connected with the balancing device, and the winding mechanism is configured to release or wind the wire under the condition that the balancing device moves in the cavity, so that the wire is connected with the balancing device. Under the condition that the balancer moves in the cavity, the winding mechanism of the wire pulling device can release or wind the wire, so that the wire can be always connected with the balancer to realize power supply and/or communication, and the reliability of power supply and/or communication connection of the balancer is improved.

Description

Balance assembly and household appliance

Technical Field

The utility model relates to a domestic appliance technical field, more specifically say, involve a balanced subassembly and domestic appliance.

Background

In the household appliance, the cavity rotates at a high speed, which easily causes uneven load distribution in the cavity, for example, in the dehydration stage of the washing machine, the laundry in the washing unit is unevenly distributed, an eccentric condition exists, and when the washing unit rotates at a high speed, great vibration is generated. Therefore, it is common to balance the eccentric mass by providing a balancer to reduce vibration. Specifically, by controlling the movement of the balancer in the balancing ring, the eccentricity of the cavity is balanced by means of the self-gravity and centripetal force of the balancer, so that the vibration and noise of the household appliance are reduced.

In the related art, the balancer has a driving device to drive the balancer itself to move. Generally, when power is supplied to a driving device, problems such as poor contact often occur, which leads to the problem of unreliable electrical connection and influences the stable and reliable operation of an electric appliance.

SUMMERY OF THE UTILITY MODEL

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

The utility model discloses embodiment's a balanced subassembly for domestic appliance, balanced subassembly includes:

the balance body is internally provided with an annular cavity;

a balancer disposed within the chamber, the balancer including a power member for driving movement of the balancer within the chamber; and

a wire pulling device disposed on the balance body, the wire pulling device including a winding mechanism and a wire, the wire being wound on the winding mechanism, the wire being connected to the balancer, the winding mechanism being configured to release or wind the wire while the balancer moves within the chamber, such that the wire remains connected to the balancer.

In the balancing assembly, under the condition that the balancer moves in the cavity, the winding mechanism of the wire pulling device can release or wind the wire, so that the wire can be always connected with the balancer to realize power supply and/or communication, and the reliability of power supply and/or communication connection of the balancer is improved.

In some embodiments, the winding mechanism includes a return member and a winding member, the winding member is connected to the return member, the wire is wound on the winding member, and the return member is configured to drive the winding member to rotate to release or wind the wire when the balancer moves in the chamber.

In some embodiments, the winding mechanism includes a restoring member and a winding member, the winding member is connected to the restoring member, the wire is wound on the winding member, the restoring member provides restoring force to the winding member to make the winding member have an acting force for winding the wire, and the wire is pulled out by the balancer during movement of the balancer to make the winding member release the wire.

In some embodiments, the balancer moves one end of the wire to rotate the winding member against the restoring force to release the wire when the balancer moves in a first direction, and the restoring member drives the winding member to rotate to wind the wire by the restoring force when the balancer moves in a second direction opposite to the first direction.

In some embodiments, the return member comprises at least one of a coil spring and a torsion spring.

In some embodiments, the winding mechanism includes a slip ring, the slip ring includes a first connection portion and a second connection portion, the first connection portion is electrically connected to the second connection portion, the second connection portion is capable of rotating relative to the first connection portion, the second connection portion is fixedly connected to the winding member, one end of the wire is connected to the second connection portion, the other end of the wire is connected to the balancer, the first connection portion is used for electrically connecting a power supply, and when the winding member rotates to release or wind the wire, the winding member drives the second connection portion to rotate relative to the first connection portion.

In some embodiments, the winding member defines a receiving hole, and the slip ring is at least partially located in the receiving hole.

In some embodiments, the wire pulling device further includes a housing, the housing is fixedly connected to the balancer, the restoring member and the winding member are both disposed in the housing, the housing is formed with a through hole, and the wire penetrates through the through hole and is connected to the balancer.

In some embodiments, the inner wall of the chamber includes a first sidewall and a second sidewall disposed radially along the counterweight, the first sidewall being closer to a central axis of the chamber than the second sidewall, the wire pulling device being mounted on the second sidewall.

In some embodiments, the number of the wire drawing devices is two, the number of the balancers is also two, the two wire drawing devices are respectively connected with the two balancers, and the two wire drawing devices are symmetrically arranged on the balancing body.

In some embodiments, the inner wall of the chamber includes a first side wall and a second side wall disposed along the radial direction of the balancer body, the first side wall is closer to the central axis of the chamber than the second side wall, the power unit includes a driving member and a coupling gear, the driving member is connected to the coupling gear, the first side wall is provided with an annular tooth portion, the coupling gear is engaged with the tooth portion, and the driving member is configured to drive the coupling gear to rotate so as to drive the balancer to move in the chamber.

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

a first cavity;

the first cavity is rotatably connected with the second cavity; and

the balance assembly of any preceding embodiment, wherein the balance body is mounted to the first cavity.

In the household appliance, under the condition that the balancer moves in the cavity, the winding mechanism of the wire pulling device can release or wind the wire, so that the wire can be always connected with the balancer to realize power supply and/or communication, and the reliability of power supply and/or communication connection of the balancer is improved.

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

Drawings

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

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

fig. 2 is an exploded view of the first chamber and the balance according to the embodiment of the present invention;

FIG. 3 is an exploded schematic view of a balancing assembly according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a portion of a balancing assembly according to an embodiment of the present invention;

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

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

fig. 7 is a schematic structural view of a power part of a balancer according to an embodiment of the present invention;

fig. 8 is a partial schematic structural view of a power part of a balancer according to an embodiment of the present invention;

fig. 9 is a schematic structural view of the balance body and the wire drawing device of the balance assembly according to the embodiment of the present invention;

FIG. 10 is a schematic view of a portion of the balance body and wire pulling device of the balance assembly according to an embodiment of the present invention;

fig. 11 is another schematic structural view of the balance body and the wire drawing device of the balance assembly according to the embodiment of the present invention;

fig. 12 is a schematic structural view of a wire drawing device of a balancing assembly according to an embodiment of the present invention;

fig. 13 is an exploded schematic view of a wire pulling device of a balancing assembly according to an embodiment of the present invention;

fig. 14 is a partial schematic structural view of a wire drawing device of a balancing assembly according to an embodiment of the present invention;

fig. 15 is another partially exploded view of the wire pulling device of the counterbalance assembly in accordance with an embodiment of the present invention;

fig. 16 is a schematic structural view of another part of the wire drawing device of the balancing assembly according to the embodiment of the present invention.

Description of the main element symbols:

a household appliance 1000;

the balance assembly 100, the first cavity 200, the first end 201, the second end 202, the second cavity 300, the mounting plate 400 and the fixing frame 500;

the balance body 10, the first ring body 11, the second ring body 12, the chamber 13, the inner wall 131, the first side wall 1311, the second side wall 1312, the first connecting wall 1313, the second connecting wall 1314;

the balancer 20, the power part 21, the driving part 211, the output shaft 2111, the speed regulation structure 212, the coupling gear 2121, the first-stage transmission structure 2122, the worm 21221, the worm wheel 21222, the second-stage transmission structure 2123, the first gear 21231, the second gear 21232, the box 2124, the body 22, the opening 221, the support structure 23, the roller 231, the fixed shaft 2311 and the anti-friction member 232;

a tooth portion 30, a ring gear;

the wire drawing device 40, the winding mechanism 41, the slip ring 411, the first connecting portion 4111, the second connecting portion 4112, the restoring member 412, the winding member 413, the receiving hole 4131, the conductive wire 42, the housing 43, the bottom shell 431, the receiving cavity 4311, the through hole 4312, the end cap 432, the cover 432, the spring,

the marker 70, the displacement detector 80, the corrector 90, the ring 91, and the correction detector 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 to 3, a balance assembly 100 according to an embodiment of the present invention is applied to a household appliance 1000. The home appliance 1000 includes a balancing assembly 100, a first cavity 200 and a second cavity 300. The first chamber 200 is rotatably connected to the second chamber 300, and a load can be placed in the first chamber 200. The balancing assembly 100 includes a balancing body 10 and a balancer 20. The balance body 10 is installed in the first chamber 200. An annular chamber 13 is provided in the balance body 10, and a balancer 20 is provided in the chamber 13. The balancer 20 is movable within the chamber 13, and specifically, the balancer 20 is movable circumferentially within the chamber 13 about the central axis Y of the chamber 13. The home appliance 1000 may be a laundry treating appliance such as a washing machine, a dryer, or other home appliances 1000 having the first cavity 200 capable of rotating. The load can be clothes, quilts and other objects needing to be cleaned.

It can be understood that when the household appliance 1000 is in operation, the first cavity 200 can rotate relative to the second cavity 300, and the load in the first cavity 200 is easily distributed unevenly, and is eccentric. In case that the first chamber 200 is rotated and the load is eccentric, the home appliance 1000 may generate a large vibration. The balance body 10 is fixedly connected to the first chamber 200 and rotates together with the first chamber 200. Therefore, it is possible to offset or reduce the eccentric mass when the first chamber 200 rotates by means of the self-gravity and the centripetal force of the balancer 20 by controlling the movement of the balancer 20 within the balancing body 10, and thus it is possible to reduce the vibration of the home appliance 1000.

In the illustrated embodiment, 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 rotating 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 housing (not shown) of the household appliance 1000. 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 Y of the chamber 13 is parallel to or coincides with the rotation axis X of the washing chamber, i.e. the balancing body 10 may be arranged 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.

In addition, referring to fig. 1, in order to further reduce the transmission of the vibration inside the washing machine to the outside, the water containing cavity may be connected to the mounting plate 400 through a vibration damping structure, and the mounting plate 400 may be fixed to the bottom plate of the housing or may be the bottom plate of the housing. The vibration damping structure can adopt structural components such as springs, hydraulic pressure and the like to reduce the transmission of vibration.

Referring to fig. 1-3, the household appliance 1000 is a drum washing machine. The first cavity 200 comprises a first end 201 and a second end 202 along the axis of rotation X. One balancing body 10 is mounted at each of the first end 201 and the second end 202. At least one balancer 20, for example, one or two or more than two, is provided in the chamber 13 of each balancing body 10. Preferably, two balancers 20 are provided in the chamber 13 of the balancing body 10, and the initial balancing positions of the two balancers 20 are symmetrically arranged along the radial direction of the balancing body 10, in such a manner that the first chamber 200 can be balanced in an unloaded state.

Specifically, the second end 202 of the first cavity 200 may be connected to a rotating shaft (not shown), the rotating shaft is fixedly connected to the fixing frame 500, and a power device (not shown) of the household appliance 1000 may be connected to the rotating shaft to drive the first cavity 200 and the fixing frame 300 to rotate together. In the embodiment shown in fig. 3, the first end 201 of the first cavity 200 is a front end, and the second end 202 is a rear end, and the front end may refer to an end facing a user. In other embodiments, the first end 201 or the second end 202 of the first cavity 200 is provided with the balance body 10, or the balance body 10 is provided between the first end 201 and the second end 202. The mount 500 may be a tripod.

In the embodiment shown in fig. 2 and 3, 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.

Referring to fig. 3, each of the balancers 10 includes a first ring body 11 and a second ring body 12, the first ring body 11 and the second ring body 12 together form a sealed chamber 13, and two balancers 20 are disposed in the chamber 13. Since the balance body 10 has a circular ring shape, the balancer 20 can move circularly in the chamber 13 of the balance body 10. In the embodiment shown in fig. 3, the first ring member 11 defines a chamber 13, which may be referred to as a gimbal body, the second ring member 12 may be referred to as an end cap, and the second ring member 12 is connected to the first ring member 11 to seal the chamber 13.

Referring to fig. 3, the inner wall 131 of the chamber 13 includes a first sidewall 1311, a second sidewall 1312, a first connecting wall 1313 and a second connecting wall 1314. The first sidewall 1311 and the second sidewall 1312 are disposed radially along the balance body 10, and the first sidewall 1311 is closer to the central axis Y of the chamber 13 than the second sidewall 1312. The first connection wall 1313 connects the first and second side walls 1311 and 1312, the second connection wall 1314 connects the first and second side walls 1311 and 1312, and the second connection wall 1314 and the first connection wall 1313 are oppositely disposed. Specifically, the first ring body 11 includes a first side wall 1311, a second side wall 1312, and a first connection wall 1313, and the second ring body 12 includes a second connection wall 1314. In the illustrated embodiment, the central axis Y of the chamber 13 coincides with the rotation axis X of the first cavity 200. By overlapping is understood that the two are completely overlapping or that the eccentricity between the two is of a desired magnitude, for example, the eccentricity is within assembly tolerances.

Referring to fig. 4-6, the balancer 20 includes a power member 21, a body 22, and a support structure 23. The power unit 21 is connected to a balance control board (not shown), i.e., a control circuit board of the balancer, and a balance controller may be provided on the balance control board to control the operation of the balancer 20, for example, the balance controller is used to control the power unit 21 to drive the balancer 20 to move in the cavity 13 of the balance body 10, and for example, is used to control the balancer 20 to communicate with the household appliance 1000.

Specifically, the power unit 21 includes a driver 211 and a coupling gear 2121, and the driver 211 is connected to the coupling gear 2121. Referring to fig. 3-6, the balance assembly 100 further includes an annular tooth 30, the tooth 30 is disposed within the chamber 13 along a circumferential direction of the balance body 10, and specifically, in the illustrated embodiment, the tooth 30 is disposed on the first sidewall 1311, and the coupling gear 2121 is engaged with the tooth 30.

It can be understood that the balancer 20 is driven by the engagement of the coupling gear 2121 with the tooth portion 30, the engagement has the characteristics of high precision and stable transmission, and there is no slip risk, and the coupling gear 2121 is engaged with the tooth portion 30 provided on the first side wall 1311 near the central axis Y of the balance body 10, so that it is possible to prevent the balancer 20 from being driven difficultly due to resistance caused by too tight engagement due to centrifugal force generated when the first chamber 200 rotates, thereby ensuring smooth and stable movement of the balancer 20 in the chamber 13 when the first chamber 200 rotates, particularly, at high speed. In the illustrated embodiment, the teeth 30 are formed separately from the balance 10, for example, the teeth 30 are teeth on an annular ring gear that is fixedly attached to the first side wall 1311 of the chamber 13. It is understood that in other embodiments, the tooth portion 30 may be directly formed on the first sidewall 1311 of the chamber 13, and is not particularly limited thereto.

In the illustrated embodiment, the number of the coupling gears 2121, with which each balancer 20 meshes with the tooth 30, is single. In this way, one annular tooth 30 may be provided on the first side wall 1311, and the combination gear 2121 and the tooth 30 are single, which can save cost. In other embodiments, the number of the combination gears 2121 may be two or other numbers, and the number of the teeth 30 may be set according to actual needs. Two or more combining gears 2121 may be engaged with one tooth portion 30.

Referring to fig. 6, the main body 22 is formed with an opening 221, the power member 21 is formed in the main body 22, and the coupling gear 2121 is partially exposed from the opening 221. In this way, the portion of the coupling gear 2121 exposed from the opening 221 is engaged with the tooth portion 30 provided on the first side wall 1311, and the power member 21 can move the balancer 20 by the engagement action of the driving coupling gear 2121 with the tooth portion 30. It should be noted that the body 22 may be integrally formed by using a steel plate with a relatively high rigidity, so that the balancer 20 may be reliably and stably maintained when the first chamber 200 rotates at a high speed. It is understood that the body 22 may be made of other metal or non-metal materials, and is not limited thereto.

Further, referring to fig. 5 and 6, the power unit 21 includes a speed adjusting structure 212, the speed adjusting structure 212 includes a combination gear 2121, and the speed adjusting structure 212 is connected to the driving member 211. In this way, the speed adjusting structure 212 can adjust the output torque of the driving member 211, thereby adjusting and controlling the moving speed of the balancer 20. Specifically, referring to fig. 8, the speed adjustment structure 212 includes a first stage transmission structure 2122 and a second stage transmission structure 2123, the first stage transmission structure 2122 is connected to the output shaft 2111 of the driving member 211, and the second stage transmission structure 2123 is connected to the first stage transmission structure 2122 and the combining gear 2121. In this manner, the reduction ratio of the balancer 20 can be realized by the two-stage transmission structure.

Still further, referring to fig. 7 and 8, the governor structure 212 may further include a housing 2124, and the first-stage transmission structure 2122 and the second-stage transmission structure 2123 are located within the housing 2124. The case 2124 may be made of a firm, non-deformable thick steel plate, and the entire case 2124 is rectangular. In other embodiments, the housing 2124 may have other shapes such as a cube, a prism, or a cylinder. The conjoined gear 2121 is connected to the second stage transmission structure 2123 and partially exposed from the housing 2124.

Specifically, in an embodiment of the present invention, the first stage transmission structure 2122 includes a worm 21221 and a worm wheel 21222. The second stage gearing arrangement 2123 includes a first gear 21231 and a second gear 21232. The worm 21221 connects the output shaft 2111 of the driving member 211 with the worm wheel 21222, the worm wheel 21222 is fixedly connected with the first gear 21231, the first gear 21231 is engaged with the second gear 21232, and the second gear 21232 is connected with the combination gear 2121. In the embodiment shown in fig. 8, the second gear 21232 is a duplicate gear that meshes with the first gear 21231 and the coupling gear 2121, respectively. In other embodiments, the second gear 21232 can be a single gear, selected according to a reduction ratio or other parameters, and is not particularly limited herein.

During the operation of the power component 21, the driving component 211 drives the worm 21221 to rotate through the output shaft 2111, and then the worm 21221 drives the worm wheel 21222 engaged therewith to rotate, so as to implement the first-stage transmission, the worm wheel 21222 drives the first gear 21231, and then the first gear 21231 drives the second gear 21232, so as to implement the second-stage transmission. The second gear 21232 rotates the coupling gear 2121, thereby moving the balancer 20 in the chamber 13. Since the worm wheel 21222 and the worm 21221 have self-locking performance, the worm wheel 21222 and the worm 21221 can function as a limit, and the balancer 20 can be stably stopped at a certain position in the chamber 13 under the condition that the driving member 211 does not work.

Further, referring to fig. 4-6, in the illustrated embodiment, the support structure 23 is disposed on the body 22, and the support structure 23 is supported on the inner wall 131 of the chamber 13. In this manner, the operation of the balancer 20 is more stabilized by the contact of the support structure 23 with the inner wall 131.

Specifically, the supporting structure 23 includes a roller 231, the roller 231 is rotatably disposed on the body 22, and the roller 231 contacts the second sidewall 1312. In the case where the balancer 20 moves, the roller 231 can rotate relative to the body 22. It can be understood that the roller 231 plays a role of bearing the centrifugal force and the gravity of the entire balancer 20.

In some embodiments, the roller 231 may be a bearing and may be coupled with the body 22 by a stationary shaft 2311. The fixing shaft 2311 is fixedly connected with the body 22 in a welding manner, a screw connection manner, a buckling manner, an interference fit manner, and the like, which is not limited herein. The roller 231 is sleeved on the fixing shaft 2311, and the roller 231 can rotate relative to the body 22. The rollers 231 are disposed at both ends of the body 22 along the circumferential direction of the chamber 13, and when the driving member 211 drives the combining gear 2121 to drive the balancer 20 to move, the rollers 231 rotate around the fixing shaft 2311 and rotate relative to the body 22, so that the balancer 20 moves more stably in the chamber 13. In other embodiments, the roller 231 may include a shaft and a wheel, the wheel is fixedly connected to the shaft, and the shaft is rotatably connected to the body 22. The number of wheels may be one, or two or more than two.

Further, the supporting structure 23 may further include an anti-friction member 232, the anti-friction member 232 is rotatably disposed on the body 22, and the anti-friction member 232 contacts the first connecting wall 1313 and/or the second connecting wall 1314. In the case where the balancer 20 moves, the anti-friction member 232 can rotate relative to the body 22. Thus, the movement space of the balancer 20 is further defined, the deviation of the balancer 20 in other directions is reduced, and the resistance to the movement of the balancer 20 is reduced, thereby improving the stability of the movement of the balancer 20. It is understood that the balancer 20 is located in the sealed chamber 13, and a desired moving direction of the balancer 20 is in a circumferential direction of the chamber 13 when the balancer 20 moves, and the balancer 20 may rub against the first connection wall 1313 and/or the second connection wall 1314 during the movement. The anti-friction member 232, which is provided on the body 22 and contacts the first connecting wall 1313 and/or the second connecting wall 1314, can correct and limit the moving direction of the balancer 20, and can effectively reduce the friction force when the balancer 20 contacts the first connecting wall 1313 and/or the second connecting wall 1314.

In one embodiment, the anti-friction members 232 may be rotatably provided at both sides of the body 22, and the anti-friction members 232 located at both sides of the body 22 contact the first connecting wall 1313 and the second connecting wall 1314. In another embodiment, the anti-friction member 232 may be rotatably disposed at one side of the body 22, and the anti-friction member 232 at one side of the body 22 contacts the first connecting wall 1313 or the second connecting wall 1314.

In one embodiment, anti-friction member 232 comprises bull's-eye wheels, two bull's-eye wheels being disposed on each side of body 22 in contact with first connecting wall 1313 and second connecting wall 1314. In other embodiments, a side surface contacting with the first connecting wall 1313 may be provided with a bull's-eye wheel, or a side wall contacting with the second connecting portion 4112 may be provided with a bull's-eye wheel. The number of the bull's-eye wheels arranged on each side face can be one, two or other number, and is not limited in particular. Of course, the anti-friction member 232 may be other members having an anti-friction function.

Referring to fig. 9-11, in some embodiments, the balance assembly 100 further includes a wire pulling device 40, the wire pulling device 40 is fixedly disposed on the balance body 10, the wire pulling device 40 includes a winding mechanism 41 and a wire 42, and the wire 42 is wound around the winding mechanism 41. One end of the wire 42 is electrically connected to the balancer 20 and the other end is electrically connected to a power source, which can supply power to the balancer 20 through the wire 42. The take-up mechanism 41 is configured to release or take-up the wire 42 in a case where the balancer 20 moves within the chamber 13, so that the wire 42 remains connected to the balancer 20.

In this way, the wire pulling device 40 may enable the wire 42 to remain connected to the balancer 20 at all times regardless of the position to which the balancer 20 moves within the chamber 13 to enable power and/or communication, improving reliability of power and/or communication by the balancer 20.

It is to be understood that the conductive line 42 electrically connecting the balancer 20 and the power source may be understood as the conductive line 42 being directly connected to the balancer 20 and the power source or being connectable to the balancer 20 or the power source through other conductive structures, and is not particularly limited. Additionally, it will also be appreciated that in some embodiments, the wires 42 may also be used to communicate with the balancer 20 and a main controller of the household appliance (e.g., a program control circuit board of the household circuit). In addition, the power source connected to the wire 42 may be a commercial power source or a power source device of the household electrical appliance 1000, such as an electric storage battery or a transformer of the household electrical appliance 1000, and is not limited herein.

Further, referring to fig. 12-16, the winding mechanism 41 includes a recovery member 412 and a winding member 413, the winding member 413 is connected to the recovery member 412, the wire 42 is wound around the winding member 413, the recovery member 412 provides the recovery force to the winding member 413 so that the winding member 413 has the force of winding the wire 42, and during the movement of the balancer 20, the wire 42 is pulled out from the balancer 20 so that the winding member 413 releases the wire 42.

Thus, when the balancer 20 is stationary in the chamber 13, the restoring member 412 may provide the restoring force to the winding member 413 so that the winding member 413 has a force to wind the wire 42, so that the wire 42 may be maintained in a tensioned state without interference with the movement of the balancer 20 due to excessive slack of the wire 42.

Specifically, if a longer wire 42 is required between the equalizer 20 and the wire drawing device 40 during movement of the equalizer 20, the equalizer moves the wire 42 together, so that the winding member 413 can overcome the restoring force applied by the restoring member 412 to pull the wire 42 out of the wire drawing device 40 so that the wire 42 can remain electrically connected to the equalizer 20. If the balancer 20 releases the wire 42 during the movement of the balancer 20, i.e., the balancer 20 does not apply a force to the wire 42, the winding member 413 rotates by the restoring force of the restoring member 412 to wind up the excess wire 42, so that the wire 42 is in a tensioned state without affecting the movement of the balancer 20.

Further, in the case where the balancer 20 moves in the first direction, the balancer 20 moves one end of the wire 42, thereby rotating the winding member 413 against the restoring force to release the wire 42, and in the case where the balancer 20 moves in the second direction, the restoring member 412 rotates the winding member 413 by the restoring force to wind the wire 42, the second direction being opposite to the first direction. It should be noted that, in the embodiment of the present invention, the movement of the balancer 20 in the first direction may be understood as the rotation of the balancer 20 in the first direction around the central axis Y of the chamber 13, and the movement of the balancer 20 in the second direction may be understood as the rotation of the balancer 20 in the second direction around the central axis Y of the chamber 13, that is, the rotation in the opposite direction to the first direction.

Specifically, in the embodiment shown in fig. 11, the first direction is a clockwise direction, and the second direction is a counterclockwise direction, and the wire 42 may be pulled out in the clockwise direction by the balancer 20. In the embodiment shown in fig. 11, in the case that the balancer 20 moves in the first direction, the distance between the balancer 20 and the wire drawing device 40 is gradually increased in the first direction, so that the balancer 20 can move the wire 42 to rotate the winding member 413 against the restoring force of the restoring member 412 to release the wire 42, thereby enabling the wire 42 to maintain the electrical connection with the balancer 20 to improve the reliability of the power supply and/or communication of the balancer 20. In the case where the balancer 20 moves in the second direction, the distance between the balancer 20 and the wire drawing device 40 is gradually reduced in the second direction, the balancer 20 gradually releases the wire 42, and the winding member 413 gradually winds the wire 42 by the restoring force of the restoring member 412. It is understood that, in the embodiment of the present invention, the balancer 20 moves in the first direction by a distance substantially equal to the length of the wire 42 released from the winding member 413, and the balancer 20 moves in the second direction by a distance substantially equal to the length of the wire 42 wound by the winding member 413. Therefore, due to the presence of the restoring member 412, the winding mechanism 41 can keep the wire 42 in a tensioned state without being too loose to affect the movement of the balancer 20 regardless of the movement of the balancer 20.

It is understood that in other embodiments, the first direction may be counterclockwise and the second direction may be clockwise, and the specific operation principle of the winding mechanism 41 is similar to that described above, and will not be repeated herein for the sake of avoiding redundancy.

In addition, the restoring force is smaller than the frictional force between the balancer 20 and the balance body 10 when it is stationary within the chamber 13. Thus, when the balancer 20 is at rest, the restoring force is smaller than the static friction force between the balancer 20 and the balance body 10 when the balancer 20 is at rest in the chamber 13, and the balancer 20 is not pulled by the existence of the restoring force, ensuring the accuracy of adjusting the balance.

In an embodiment of the present invention, the restoring member 412 includes at least one of a coil spring and a torsion spring, and the winding member 413 may be a sheave on which the wire 42 is wound. Thus, the restoring force can be applied to the winding member 413 by using a coil spring, a torsion spring, or the like, and the structure is simple. It is understood that in the present embodiment, the restoring member 412 can be a coil spring or a torsion spring, or a combination of the coil spring and the torsion spring, and is not limited in particular.

In other embodiments, the restoring member 412 may also be configured to drive the winding member 413 to rotate to release or wind the wire 42 in the case where the balancer 20 moves in the chamber 13. That is, the restoring member 412 can actively drive the winding member 413 to rotate to release or wind the wire 42. Thus, as the balancer 20 moves, the restoring member 412 may correspondingly drive the winding member 413 to rotate to release or wind the wire 42, thereby enabling the wire 42 to remain electrically connected to the balancer and enabling the wire 42 to be tensioned without interference with the movement of the balancer due to excessive slack in the guide.

Specifically, in such an embodiment, the restoring member 412 may include a motor, and the winding member 413 may also be a sheave around which the wire 42 is wound, and the motor may actively drive the sheave to rotate so as to release or wind the wire 42, for example, in conjunction with fig. 11, in the case where the balancer 20 moves in the first direction, the motor may actively drive the winding member 413 to rotate so as to release the wire 42, and in the case where the balancer 20 moves in the second direction, the motor may actively drive the winding member 413 to rotate in the opposite direction so as to wind the wire 42, so that the wire 42 can always be electrically connected to the balancer 20 due to the existence of the restoring member 412 regardless of the movement of the balancer 20. It is understood that in the case where the motor is in the off state, the motor shaft of the motor is in a stationary state, that is, in the case where the motor is off, even though the balancer 20 tends to move, the balancer 20 cannot rotate the winding piece 413. In addition, in some embodiments, the activation of the motor may be controlled in linkage with the shutdown and the movement of the balancer 20, and may be controlled by a balance controller, or may be controlled by a main controller of the household appliance 1000, which is not limited in particular. The movement of the balancer 20 may include a moving direction and a moving distance. Preferably, the moving speed of the balancer 20 is a set value, and the moving speed of the balancer 20 is not changed in magnitude during the control of the movement of the balancer.

Referring to fig. 12 to 16, the winding mechanism 41 further includes a slip ring 411, the slip ring 411 includes a first connection portion 4111 and a second connection portion 4112, the first connection portion 4111 is electrically connected to the second connection portion 4112, the second connection portion 4112 is capable of rotating relative to the second connection portion 4112, the second connection portion 4112 is fixedly connected to receive the winding member 413, one end of the wire 42 is connected to the second connection portion 4112, the other end of the wire 42 is connected to the balancer 20, the first connection portion 4111 is used for electrically connecting to a power supply, and when the winding member 413 rotates to release or wind the wire 42, the winding member 413 drives the second connection portion 4112 to rotate relative to the first connection portion 4111.

In this manner, the slip ring 411 may be mounted on the winding member 413 through the second connection portion 4112, and the wire 42 may be connected to the power source through the slip ring 411. Specifically, the first connecting portion 4111 of the slip ring 411 is connected to the power supply, and the second connecting portion 4112 can rotate relative to the first connecting portion 4111, so that when the winding member 413 rotates, the second connecting portion 4112 can follow the rotation, and the portion of the second connecting portion 4112 connected to the wire 42 can also correspondingly follow the rotation, so that on one hand, the wire 42 can be prevented from being wound, and on the other hand, the wire 42 and the portion of the second connecting portion 4112 are prevented from being loosened to influence the electrical connection with the second connecting portion 4112.

Specifically, the slip ring 411 may be an electrically conductive slip ring, the first connecting portion 4111 may be a stator of the electrically conductive slip ring, and the second connecting portion 4112 may be a rotor of the electrically conductive slip ring. In the process that the winding piece 413 rotates to release or wind the wire 42, the winding piece 413 drives the second connecting portion 4112 to rotate, so that the wire 42 is connected to the second connecting portion 4112, and the wire 42 is prevented from being wound and loosened from the connection between the wire 42 and the second connecting portion 4112, thereby affecting the electrical connection between the wire 42 and the second connecting portion 4112.

Further, the winding member 413 has a receiving hole 4131, and the slip ring 411 is at least partially located in the receiving hole 4131. Thus, the slip ring 411 can be accommodated in the accommodating hole 4131, the winding member 413 can protect the slip ring 411, and the space occupied by the winding mechanism 41 can be reduced, so that the volume of the wire pulling device 40 can be made smaller. Specifically, the receiving hole 4131 may be opened at a central position of the winding member 413, and a central axis of the slip ring 411 coincides with a central axis of the receiving hole 4131, so that the winding member 413 may also drive the second connecting portion 4112 to rotate around the same axis when rotating around the central axis thereof, so that the two can rotate synchronously to prevent the wire 42 from being wound.

Still further, referring to fig. 11-13, the wire pulling device 40 further includes a housing 43, the housing 43 is fixedly connected to the balance body 10, the restoring member 412 and the winding member 413 are both disposed in the housing 43, the housing 43 is formed with a through hole 4312, and the wire 42 is connected to the balancer 20 by passing through the through hole 4312.

Thus, the wire pulling device 40 can be integrally fixed on the balance body 10 through the housing 43, the housing 43 can effectively protect the components such as the restoring member 412, the winding member 413, the wire 42 and the like arranged in the housing 43 to prevent the components from being interfered by the outside, and the through hole 4312 on the housing 43 can allow the wire 42 to pass through without affecting the release and winding of the winding member 413 on the wire 42.

Specifically, referring to fig. 13 and 15, the housing 43 is substantially cylindrical, the housing 43 includes a bottom shell 431 and an end cover 432, the bottom shell 431 is formed with an annular receiving cavity 4311, and the restoring member 412 and the winding member 413 are received in the receiving cavity 4311. The end cap 432 is detachably connected to the bottom case 431, and the end cap 432 is covered on the bottom case 431 to close the receiving chamber 4311. A through hole 4312 is formed on the inner wall of the bottom case 431, the through hole 4312 communicates with the receiving cavity 4311, and one end of the wire 42 passes through the through hole 4312 and then is electrically connected to the balancer 20.

It should be noted that, in the embodiment shown in fig. 11, the shape of the wire 42 drawn out from the wire drawing device 40 by the balancer 20 is a circular arc, which is merely illustrative, and for example, when the length of the wire 42 drawn out by the balancer 20 is short, the wire 42 may be kept in a circular arc shape. It will be appreciated that in embodiments of the present invention, as the balancer 20 moves, the balancer 20 may stretch the wire 42 straight, thereby causing the wire 42 to cling to the second sidewall 1312 of the chamber 13. Furthermore, it is understood that in some embodiments, the wire 42 may be provided with an elastic supporting sleeve, and when the balancer 20 pulls the wire 42 out, the elastic supporting sleeve may support the wire so that the wire 42 is maintained in a circular arc shape without contacting the second sidewall 1312 to prevent the wire 42 from being damaged due to repeated friction between the wire 42 and the second sidewall 1312, and the manner is not limited herein

In some embodiments, the pull means 40 is mounted on the second sidewall 1312 of the chamber 13.

Thus, when the balancer 20 pulls out the wire 42, the wire 42 is closer to the second sidewall 1312, so that the wire 42 is effectively prevented from rubbing against other sidewalls of the inner wall of the cavity 13, and the wire 42 is prevented from colliding with the second sidewall 1312 greatly during the process of straightening the wire 42 by the balancer 20 because the wire 42 is farther from the second sidewall 1312.

Referring to fig. 9, in some embodiments, the number of the wire drawing devices 40 is two, the number of the balancers 20 is also two, the two wire drawing devices 40 are respectively connected to the two balancers 20, and the two wire drawing devices 40 are symmetrically arranged on the balance body 10.

In this way, the two wire drawing devices 40 symmetrically arranged on the balance body 10 can achieve mutual mass balance, thereby preventing the wire drawing devices 40 from causing eccentricity to the first cavity 200.

Referring to fig. 7 and 8, in some embodiments, the driving member 211 may further include a displacement detecting member 80. In the case where the power unit 21 drives the balancer 20 to move within the chamber 13, the displacement detecting member 80 is used to detect the number of rotations of the output shaft 2111, the number of rotations of the output shaft 2111 being correlated with the position of the balancer 20.

It will be appreciated that the drive member 211 may be a motor, with the output shaft 2111 being a motor shaft. In the case where the power element 21 drives the balancer 20 to move within the chamber 13, the number of rotations of the output shaft 2111 is correlated with the position of the balancer 20. Therefore, the moving distance of the balancer 20 can be determined by detecting the number of rotations of the output shaft 2111, and the position of the balancer 20 can be determined in conjunction with the initial balancing position of the balancer 20. The initial equilibrium position may refer to a position before the balancer 20 starts moving within the chamber 13 or a position that can be determined during movement of the balancer 20.

Specifically, in one embodiment, the displacement sensing member 80 may include a hall sensor and a magnetic member. The hall sensor may be provided at the output shaft 2111 of the driver 211 and rotated according to the rotation of the output shaft 2111, and the magnetic member may be fixedly provided at other positions of the driver 211 or the balancer 20 and remain stationary. When the hall sensor is rotated to a position opposite to the magnetic member, the hall sensor outputs a pulse signal under the influence of the magnetic field generated by the magnetic member, so that the number of rotations of the output shaft 2111 can be detected. The magnetic member may be a permanent magnet. It is understood that the hall sensor may be fixed, and the magnetic member is disposed on the output shaft 2111 of the driving member 211 and rotates with the rotation of the output shaft 2111.

In other embodiments, the displacement detecting member 80 may be an optical sensor, an ultrasonic sensor, or the like. In one embodiment, the optical sensor includes a light emitting element and a light receiving element, one of which is fixed to the output shaft 2111 to rotate with the rotation of the output shaft 2111, and the other of which is fixed to the driving element 211 or other position of the balancer 20 to be kept stationary. One rotation of the output shaft 2111 allows the light receiving element to receive the light signal emitted from the light emitting element, so that the number of rotations of the output shaft 2111 can be detected. The detection principle of the ultrasonic sensor is similar to that of the optical sensor, and is not described in detail herein.

In other embodiments, 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 output shaft 2111 of the driving member 211 is provided with a member having a reflectance different from that of the output shaft 2111, for example, a dark color coating layer is formed on the output shaft 2111 of the driving member 211. The light emitting element and the light receiving element are arranged obliquely below the output shaft 2111 and are symmetrically arranged along the output shaft 2111, light emitted by the light emitting element is incident on the output shaft 2111 or the component, the light receiving element receives the light reflected by the output shaft 2111 or the component, and because the reflectivity of the output shaft 2111 is different from that of the component, the light receiving element correspondingly receives light signal intensity with difference conductance, so that in the rotating process of the output shaft 2111, the displacement detection element 80 detects a plurality of pulses, one pulse can correspond to one circle of rotation of the output shaft 2111, two pulses can correspond to one circle of rotation of the output shaft 2111, more than two pulses can correspond to one circle of rotation of the output shaft 2111, and the like, and specific calibration can be carried out according to actual conditions.

Referring to fig. 5, in some embodiments, the balance assembly 100 may include a flag 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, in the embodiment shown in fig. 5, the teeth of the coupling gear 2121 may be used as the marker 70, so that it may not be necessary to provide a marker additionally. Of course, in some embodiments, the teeth of the tooth portion 30 may also be utilized as the identifier 70. The displacement detecting member 80 may be provided on the balancer 20, and the displacement detecting member 80 includes at least one of an optical sensor, a hall sensor, and an ultrasonic sensor. Hereinafter, the details will be described by taking the teeth of the coupling gear 2121 as the indicator 70 and the displacement detector 80 as an optical sensor.

The teeth of the combination gear 2121 are provided with grooves, and the teeth and the grooves are uniformly distributed in a staggered manner. The coupling gear 2121 is engaged with the tooth portion 30 to rotate, and the balancer 20 is moved by the rotation of the coupling gear 2121. In this case, the teeth of the coupling gear 2121 may serve as the identification member 70, and accordingly, the displacement sensing member 80 may be installed at a position on the equalizer 20 opposite to the teeth or grooves of the coupling gear 2121. When the coupling gear 2121 rotates, the displacement detecting member 80 is relatively immovable. During the rotation of the engaging gear 2121, the teeth and the grooves of the engaging gear 2121 pass through the displacement detecting member 80 alternately, so that the number of times the teeth of the engaging gear 2121 pass through the displacement detecting member 80, that is, the number of teeth of the engaging gear 2121 that pass through the displacement detecting member 80, can be detected. It will be appreciated that in other embodiments, the recess between two teeth may also be used as the identifier.

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 combining gear 2121 or on opposite sides of the combining gear 2121, respectively. Since the teeth of the coupling gear 2121 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 2121, 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 other than the grooves), and regular pulse signals may be obtained by processing the pulse signals by the balance controller, where the number of pulses is the number of teeth in the rotation of the coupling gear 2121, so that the moving distance of the balancer 20 may be obtained, and the position of the balancer 20 may be obtained by combining 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 2121, 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 be processed by the balance controller to obtain regular pulse signals, the number of pulses is the number of teeth rotating in the coupling gear 2121, thereby obtaining the moving distance of the balancer 20, and then the position of the balancer 20 may be obtained in combination with the initial balance position of the balancer 20. In one example, the light emitting element may be a light emitting diode (e.g., a visible light emitting diode, or an infrared light emitting diode) and the light receiving element may be a photodiode.

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 present embodiment, the chamber 13 is provided with an initial equilibrium position. The balance controller is electrically connected to the displacement detecting member 80, and the balance controller is used to determine the position of the balancer 20 based on the number of times the marker 70 passes the displacement detecting member 80 and the initial balance position. In this manner, the location of the balancer 20 is easily determined.

It will be appreciated that the initial equilibrium position of the balancer 20, in the absence of movement of the balancer 20, refers to the default position when the balancer 20 is stationary within the chamber 13. The balance controller records an initial balance position, and determines the position of the balancer 20 in combination with the distance the balancer 20 has moved, in the case where the balancer 20 starts moving from the default position. Specifically, the displacement detector 80 may output regular pulse signals according to the number of times the identifier 70 passes through the displacement detector 80, the balance controller may receive the pulse signals output by the displacement detector 80, and may obtain the moving distance of the balancer 20 through processing, and may finally calculate the current position of the balancer 20 by combining with the initial balance position of the balancer 20.

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. In the case where the two balancers 20 are not moved, one balancer 20 remains stationary at each initial balancing position. Preferably, the two initial equilibrium positions are arranged 180 degrees symmetrically. Thus, in the case where the balancer 20 does not move, the balance of the balance body 10 and thus the first chamber 200 can be maintained, 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.

In addition, referring to fig. 3 to 6, in some embodiments, the balance assembly 100 may further include a calibration member 90 and a calibration detection 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 rotations of the output shaft 2111 of the driving member 211 or the number of times the displacement sensing member 80 senses the passage of the identification member 70 through 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, the determined position of the balancer 20 may be erroneous. 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 calibration detecting member 110 passes each calibration member 90, information that it detects the calibration member 90 is transmitted to the balance controller. Further, the balance controller acquires information of the position where the balancer 20 passes through the correction element 90, and sets the position where the balancer 20 is located to a value of 0, which can be regarded 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 turns of the output shaft 2111 of the driving member 211 detected by the displacement detecting member 80 or the number of passes of the identification member 70 detected by the displacement detecting member 80 is fed back to the balance controller again from 0 by way of a pulse signal, the moving distance of the balance controller to the balancer 20 starts to be calculated again, and the accurate position information of the balancer 20 in the balance body 10 is obtained.

In some embodiments, two correction pieces 90 are disposed in the chamber 13, the two correction pieces 90 are symmetrically arranged at 180 degrees along the radial direction of the balance body 10, and the position of each correction piece 90 may correspond to an initial balance position. The correction member 90 is provided on the inner wall 131 of the chamber 13. The correction detecting member 110 may be one of a light sensor, an ultrasonic sensor, and a hall sensor. The passage of the calibration detecting member 110 through different calibration members 90 triggers different pulse signals, so that it can be determined from the pulse signals output from the calibration detecting member 110 that the balancer 20 is passing through a certain calibration member 90, thereby determining the specific position of the balancer 20 in the chamber 13. In this manner, the position of the balancer 20 can be positioned within the chamber 13. In other embodiments, the number of correction members 90 may be three, four, or more than four. The number and position of the correcting members 90 may be adjusted according to circumstances, and are not limited to the above-described embodiment.

It should be noted that the correcting member 90 may correspond to an initial balance position, 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 correcting detecting member 110 and the correcting member 90, thereby resetting the balancer 20. In addition, the calibration member 90 may be mounted on a ring 91 or the calibration member 90 may be a part of the ring 91, the teeth 30 are teeth of a ring gear, and in the example of fig. 3, the ring 91 and the ring gear are juxtaposed in sequence along the central axis Y of the chamber on the first side wall 1311 of the chamber 13. It is understood that in other embodiments, the corrector 90 and/or the teeth 30 may be formed directly on the first sidewall 1311.

To sum up, the present invention provides a balance assembly 100 for a household appliance 1000. The household appliance 1000 comprises a first cavity 200 capable of rotating. The balancing assembly 100 includes a balancing body 10, a balancer 20, and a wire drawing device 40. An annular tooth 30. An annular chamber 13 is formed in the balance body 10. A balancer 20 is disposed in the chamber 13. The balancer 20 includes a power member 21, and the power member 21 is used to drive the balancer 20 to move within the chamber 13. The wire drawing device 40 is provided on the balance body 10, the wire drawing device 40 includes a winding mechanism 41 and a wire 42, the wire 42 is wound around the winding mechanism 41, the wire 42 is connected to the balancer 20, and the winding mechanism 41 is configured to release or wind the wire 42 in a state where the balancer 20 moves within the chamber 13, so that the wire 42 is kept connected to the balancer 20.

The utility model discloses embodiment's domestic appliance 1000 includes first cavity 200, second cavity 300 and balanced subassembly 100, and second cavity 300 can be connected to first cavity 200 with rotating, and balanced subassembly 100's balance body 10 is installed at first cavity 200.

In the balancing assembly 100 and the household appliance 100 of the above-described embodiments, in the case where the balancer 20 moves within the chamber 13, the winding mechanism 41 of the wire pulling device 40 may release or wind the wire 42, so that the wire 42 can be always connected to the balancer 20 to achieve power supply and/or communication, and the reliability of the power supply and/or communication connection of the balancer 20 is improved.

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 (12)

1. A counterbalance assembly, wherein the counterbalance assembly comprises:

the balance body is internally provided with an annular cavity;

a balancer disposed within the chamber, the balancer including a power member for driving movement of the balancer within the chamber; and

a wire pulling device disposed on the balance body, the wire pulling device including a winding mechanism and a wire, the wire being wound on the winding mechanism, the wire being connected to the balancer, the winding mechanism being configured to release or wind the wire while the balancer moves within the chamber, such that the wire remains connected to the balancer.

2. The counterbalance assembly of claim 1, wherein the take-up mechanism includes a return member and a take-up member, the take-up member coupled to the return member, the wire wound on the take-up member, the return member configured to drive the take-up member to rotate to release or take-up the wire if the counterbalance moves within the chamber.

3. The balance assembly of claim 1, wherein the take-up mechanism comprises a return member and a take-up member, the take-up member is coupled to the return member, the wire is wound on the take-up member, the return member provides a return force to the take-up member to cause the take-up member to have a force to take up the wire, and the wire is pulled out of the balancer during movement of the balancer to cause the take-up member to release the wire.

4. The balance assembly of claim 3, wherein the counterbalance moves an end of the wire to rotate the takeup member against the restoring force to release the wire if the counterbalance moves in a first direction, and wherein the restoring member drives the takeup member to rotate to wind the wire by virtue of the restoring force if the counterbalance moves in a second direction, the second direction being opposite the first direction.

5. The counterbalance assembly of claim 3, wherein the return member comprises at least one of a coil spring and a torsion spring.

6. The balance assembly of any one of claims 2 to 5, wherein the winding mechanism comprises a slip ring, the slip ring comprises a first connecting portion and a second connecting portion, the first connecting portion is electrically connected with the second connecting portion, the second connecting portion is capable of rotating relative to the first connecting portion, the second connecting portion is fixedly connected with the winding member, one end of the wire is connected with the second connecting portion, the other end of the wire is connected with the balancer, the first connecting portion is electrically connected with a power supply, and the winding member drives the second connecting portion to rotate relative to the first connecting portion when the winding member rotates to release or wind the wire.

7. The counterbalance assembly of claim 6, wherein the take-up member defines a receiving cavity, and wherein the slip ring is at least partially positioned within the receiving cavity.

8. The balance assembly of any one of claims 2 to 4, wherein the wire pulling device further comprises a housing, the housing is fixedly connected to the balance body, the recovery member and the winding member are both disposed in the housing, the housing is formed with a through hole, and the wire penetrates through the through hole and is connected to the balancer.

9. The balance assembly of claim 1, wherein the inner wall of the chamber comprises a first sidewall and a second sidewall disposed radially of the balance body, the first sidewall being closer to the central axis of the chamber than the second sidewall, the wire pulling device being mounted on the second sidewall.

10. The balance assembly of claim 1, wherein the number of the wire pulling devices is two, the number of the balancers is also two, the two wire pulling devices are respectively connected with the two balancers, and the two wire pulling devices are symmetrically arranged on the balance body.

11. The balance assembly of claim 1, wherein the inner wall of the chamber comprises a first side wall and a second side wall disposed radially along the balance body, the first side wall is closer to the central axis of the chamber than the second side wall, the power member comprises a driving member and a coupling gear, the driving member is connected to the coupling gear, the first side wall is provided with an annular tooth portion, the coupling gear is engaged with the tooth portion, and the driving member is configured to drive the coupling gear to rotate so as to drive the balance to move in the chamber.

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

a first cavity;

the first cavity is rotatably connected with the second cavity; and

the balance assembly of any of claims 1-11, the balance body being mounted to the first cavity.

Images