CN109778493B - Washing machine balancing device and washing machine - Google Patents
Washing machine balancing device and washing machine Download PDFInfo
- Publication number
- CN109778493B CN109778493B CN201711107761.7A CN201711107761A CN109778493B CN 109778493 B CN109778493 B CN 109778493B CN 201711107761 A CN201711107761 A CN 201711107761A CN 109778493 B CN109778493 B CN 109778493B
- Authority
- CN
- China
- Prior art keywords
- washing machine
- ball
- balancing device
- balancing
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000005406 washing Methods 0.000 title claims abstract description 93
- 238000013016 damping Methods 0.000 claims abstract description 60
- 230000006698 induction Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 101150114468 TUB1 gene Proteins 0.000 description 7
- 238000002955 isolation Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 125000006850 spacer group Chemical group 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Images
Landscapes
- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
Abstract
The invention discloses a washing machine balancing device and a washing machine, wherein the washing machine balancing device comprises a hollow annular shell coaxially arranged on a rotary barrel of the washing machine, a balancing ball movably arranged in the hollow annular shell, and a damping part which enables the moving balancing ball to generate magnetic damping. The washing machine balancing device utilizes magnetic damping to block the motion of the balance balls, so that the instability phenomenon caused by collision of the balance balls is avoided; and the structure is simple, the forming is convenient, and the economy is good.
Description
Technical Field
The invention relates to the field of washing machines, in particular to a balancing device of a washing machine and the washing machine with the balancing device.
Background
In order to solve the problem of dewatering vibration noise, a liquid balance ring is generally adopted to offset the eccentricity of clothes in the existing washing machine. But the liquid balance ring has the defects of low anti-deviation capability, instability interval and the like, and has the problems of liquid leakage, large liquid filling rate error and the like caused by a processing process. In the prior retest balancing ring, a passive balancing ring system in a combination form of a steel ball and liquid is adopted, and in order to avoid the transient excitation problem of the steel ball during dehydration starting, a cavity of the steel ball is filled with silicone oil with certain viscosity so as to ensure that the rotating speed of the steel ball is close to that of an inner barrel at the starting moment. However, the balance ring has the problem of silicon oil leakage, and once leakage occurs, secondary pollution is caused to clothes.
In the prior art, a liquid balance ring is usually adopted to offset the eccentricity generated when an inner barrel rotates in order to solve the problem of dehydration vibration noise. But the liquid balance ring has the defects of poor eccentric resistance, instability interval and the like, and has the problems of liquid leakage, large liquid filling rate error and the like caused by a processing process.
Chinese patent application No. 201120185597.3 discloses a ball balancing device for a washing machine, which includes an annular housing having a hollow interior and coaxially and fixedly installed on a rotary tub of the washing machine; a plurality of balancing balls, set up inside annular housing to inside the annular housing along the circumferencial direction removal, its characterized in that: and a separation ball for separating the two balance balls is arranged between the two adjacent balance balls. The utility model discloses a ball balancing unit of washing machine, utilize the direct collision who is full of the balanced liquid in the annular casing and keeps apart ball separation balanced ball in start-up and high-speed rotation, eliminate the noise that produces because of the balanced ball collision, the noise reduction is to user's influence, nevertheless because this balanced ring is inside to be equipped with balanced liquid, there is the problem that balanced liquid leaked, and in case leak will cause the pollution to the clothing, do not establish balanced liquid and can not only reach the purpose by keeping apart the ball again, and also there is the collision between isolation ball and the balanced ball.
Chinese patent No. 201410742320.4 discloses a washing machine and a ball balance ring for the same, which comprises a rotatable tub driven by a motor, an annular passage provided along a circumferential direction of the tub, and a plurality of balls installed in the passage and capable of rolling along the passage, the plurality of balls including a magnetic ball and a non-magnetic ball capable of being attracted by magnetic force. Due to the attraction effect of the magnetic balls, the balls are attracted together to form a mass body, the balls of the mass body cannot collide with each other, or only a few edge balls collide when the rotation motion of the barrel is unstable.
The present invention has been made in view of this situation.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a balancing device of a washing machine and the washing machine with the balancing device.
In order to solve the technical problems, the invention adopts the technical scheme that: a balancing device for washing machine is composed of a hollow ring casing coaxially arranged on the rotary drum of washing machine, a movable balancing ball in said hollow ring casing, and a damping unit for damping the moving balancing ball.
Further, the damping part comprises a magnet, and the magnet is arranged on the outer side of at least one surface of the upper surface, the lower surface, the inner ring surface and the outer ring surface of the hollow annular shell;
or the magnet is arranged on at least one of the upper surface, the lower surface, the inner ring surface and the outer ring surface of the hollow annular shell.
Furthermore, the magnet of damping portion is the ring magnet, ring magnet and the coaxial setting of cavity annular housing.
Further, the balance ball is made of non-magnetic conductive metal, and preferably, the balance ball is a stainless steel ball.
Furthermore, the balancing device of the washing machine also comprises a plurality of isolating bodies which move together with the balancing balls, and the isolating bodies are used for spacing two adjacent balancing balls.
Further, the washing machine balancing device is arranged at the bottom of the rotary drum of the washing machine.
Further, the hollow annular shell of the balancing device of the washing machine comprises a first shell and a second shell, the first shell comprises a chamber capable of accommodating the balance ball to move, the second shell and the first shell are matched to seal the chamber, preferably, the first shell is integrally formed at the bottom of the rotary drum of the washing machine, a flange is mounted at the bottom of the rotary drum of the washing machine, and the flange forms the second shell.
Further, the damping part is arranged on the outer side of the inner ring surface of the hollow annular shell to form an inner magnetic ring, and/or the damping part is arranged on the outer side of the outer ring surface of the hollow annular shell to form an outer magnetic ring.
Furthermore, the bottom of the rotary drum of the washing machine is provided with a connecting part connected with a flange, and the inner magnetic ring and/or the outer magnetic ring are/is divided into magnetic ring sections uniformly arranged in the circumferential direction by the connecting part.
The invention also provides a washing machine, which comprises the self-adjusting balance ring.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
1. The washing machine balancing device is provided with the damping part, the damping part generates a magnetic field on the motion track of the balancing ball, the balancing ball continuously cuts a magnetic induction line to generate magnetic damping in the rotating motion process of the balancing ball in the hollow annular shell to block the motion of the balancing ball, the instability phenomenon generated by collision in the process of starting acceleration and the instability phenomenon generated by collision in the process of reversing or decelerating are avoided, the magnetic damping can be generated in the motion process to block the motion of the balancing ball, and the balancing device is enabled to keep efficient balancing action all the time.
2. Eliminate the noise that produces because of the balance ball collision, promote the quality of product, increase of service life.
3. The cost can be reduced by the non-contact damping material with magnetic damping, the processing technology is simple, the reproducibility is strong, and the risk is low.
4. The damping part is arranged to generate magnetic damping to block the motion of the balance ball, so that the pollution of the leakage of the balancing device using liquid to generate damping to clothes is avoided.
5. Set up the isolator, prevent collision each other between the adjacent balancing ball.
6. The structure is simple, the forming is convenient, the reliability is high, the usability is good, and the economical efficiency is good.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention to the proper form disclosed herein. It is obvious that the drawings in the following description are only some embodiments and that for a person skilled in the art, other drawings can also be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic view of a balancing apparatus of the present invention;
FIG. 2 is a schematic view of the damping portion of the present invention;
FIG. 3 is a schematic view of a rotatable drum bottom of the present invention;
FIG. 4 is a schematic view of the washer of the present invention;
FIG. 5 is a mechanical analysis diagram of the washing machine of the present invention;
fig. 6 is a balance ball damping force analysis model of the present invention.
In the figure: 1. rotating the barrel; 11. rotating the bottom of the barrel; 12. a flange; 2. a balancing device; 21. a hollow annular housing; 22. a balance ball; 23. a damping part; 231. an inner magnetic ring; 232. an outer magnetic ring; 3. an upper liquid balance ring; 4. an outer tub; 5. the clothes are eccentric; 6. an electric motor.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The following further describes embodiments of the present invention with reference to the accompanying drawings.
Example one
As shown in fig. 1 to 5, a balancing apparatus 2 of a washing machine includes a hollow ring-shaped housing 21 coaxially disposed on a tub 1 of the washing machine, a balancing ball 22 movably disposed in the hollow ring-shaped housing 21, and a damping part 23 for magnetically damping the moving balancing ball 22.
In the above scheme, the washing machine balancing device 2 is suitable for both the drum washing machine and the pulsator washing machine. Taking the pulsator washing machine as an example, in general, the balancing device 2 is disposed at the upper end of the inner tub of the pulsator washing machine, and the balancing device 2 is preferably disposed at the bottom of the inner tub of the pulsator washing machine in this embodiment. The hollow annular housing 21 forms a slideway for the balancing ball 22, the respective inner surfaces of the hollow annular housing 21 being smooth. The damping portion 23 generates a magnetic field on the motion track of the balance ball 22, the balance ball 22 continuously cuts magnetic induction lines to generate magnetic damping in the process of rotating motion in the hollow annular shell 21, the motion of the balance ball 22 is blocked, the instability phenomenon generated by collision in the process of starting acceleration and the instability phenomenon generated by collision in the process of reversal or deceleration are avoided, the magnetic damping can be generated in the motion process, the motion of the balance ball 22 is blocked, and the balance device 2 is enabled to always keep an efficient balance effect. The damper 23 may be a magnetic field generated by a magnet, or may be another substance that can generate a magnetic field in the hollow annular case 21.
Further, the damper 23 includes a magnet disposed outside at least one of the upper surface, the lower surface, the inner annular surface, and the outer annular surface of the hollow annular housing 21.
In the above scheme, the damping part 23 includes a magnet, the magnet forms a magnetic field for the hollow annular housing 21, and the balance ball 22 moves in the hollow annular housing 21 to cut the magnetic induction lines to generate magnetic damping. The magnets may be arranged outside the upper surface, and/or outside the lower surface, and/or outside the inner annular surface, and/or outside the outer annular surface of the hollow annular housing 21. The requirement of magnetic field intensity can be achieved by arranging the magnetic field generating device on one surface. Further, since the arrangement on the upper surface or the lower surface increases the difficulty of installation, etc., the arrangement on the inner ring surface and/or the outer ring surface is preferable. Further, since it is difficult to achieve the smoothness of the magnets for the balance balls 22 to move in the hollow ring-shaped case 21, or the smoothness is achieved by additional processing of the magnets, and the magnets are directly used as the inner surface of the hollow ring-shaped case 21 to cause abrasion and affect subsequent use, it is preferable to dispose the magnets on the outer side of each surface of the hollow ring-shaped case 21 in this embodiment.
Further, the magnet of the damping portion 23 is a ring magnet, and the ring magnet is disposed coaxially with the hollow ring housing 21.
In the above scheme, because the balance ball 22 moves in the hollow annular housing 21, the magnet which can be annular and provides a magnetic field for the hollow annular housing 21 is coaxially arranged with the balance device 2, and the shape and the position of the magnet are matched, so that the uniform and sufficient magnetic field can be provided for the hollow annular housing 21, the size of the magnet can be saved, the installation space can be saved, and the uniform and sufficient magnetic field can be provided on the premise of not increasing the volume of the balance device 2. The annular magnet can be a whole annular magnet, and can also be arranged into an annular magnet formed by a plurality of arc magnets according to the requirements of installation and the like.
Further, the balance ball 22 is made of a non-magnetic conductive metal, and preferably, the balance ball 22 is a stainless steel ball.
In the above solution, the balancing ball 22 is made of non-magnetic conductive metal, and will not generate magnetism in the process of cutting the magnetic induction lines or generate large movement resistance due to the magnetism, which affects the effect of the balancing device 2. Stainless steel balls are preferred because they are smooth, dense, and non-magnetically permeable metals.
Example two
As shown in fig. 1 to 5, in the present embodiment, a balancing apparatus 2 for a washing machine includes a hollow ring-shaped housing 21 coaxially disposed on a tub 1 of the washing machine, and a balancing ball 22 movably disposed in the hollow ring-shaped housing 21, and further includes a damping part 23 for magnetically damping the moving balancing ball 22.
In contrast to the first embodiment, the damper portion 23 includes a magnet disposed on at least one of the upper surface, the lower surface, the inner annular surface, and the outer annular surface of the hollow annular housing 21.
In the above scheme, the magnet is arranged on at least one of the upper surface, the lower surface, the inner annular surface and the outer annular surface to form at least one of the surfaces of the hollow annular shell 21, so that the method is simple and convenient, a shell wall is not required to be additionally arranged, and meanwhile, the magnetic field is strong and the magnetic damping effect is good.
EXAMPLE III
As shown in fig. 1 to 5, in the present embodiment, a balancing apparatus 2 of a washing machine includes a hollow ring-shaped housing 21 coaxially disposed on a tub 1 of the washing machine, and a balancing ball 22 movably disposed in the hollow ring-shaped housing 21, and further includes a damping part 23 for magnetically damping the moving balancing ball 22.
In this embodiment, the balancing device 2 is disposed at the bottom 11 of the rotary drum of the pulsator washing machine, the bottom 11 of the rotary drum is also the inner bottom of the pulsator washing machine, and the hollow annular housing 21 may be detachably disposed at the inner bottom of the rotary drum or may be integrally formed at the inner bottom of the rotary drum.
Further, in this embodiment, the hollow annular housing 21 of the balancing device of the washing machine includes a first housing and a second housing, the first housing includes a chamber for accommodating the balancing ball 22 to move, the second housing is matched with the first housing to close the chamber, preferably, the first housing is integrally formed on the bottom 11 of the washing machine rotating drum, the bottom 11 of the washing machine rotating drum is provided with a flange 12, and the flange 12 forms the second housing.
In the above solution, the first housing and the second housing cooperate to form a closed chamber for the balance ball 22 to move. The washing machine rotary drum bottom 11 is integrally formed with a first shell for the balance ball 22 to move, the flange 12 is detachably connected to the washing machine rotary drum bottom 11, and the flange 12 and the first shell are matched to form a closed chamber.
Further, the damper portion 23 is disposed outside the inner annular surface of the hollow annular housing 21 to form an inner magnetic ring 231, and the damper portion 23 is disposed outside the outer annular surface of the hollow annular housing 21 to form an outer magnetic ring 232.
Further, the washing machine rotary drum bottom 11 is provided with a connecting part connected with the flange 12, and the inner magnetic ring 231 and the outer magnetic ring 232 are divided into magnetic ring segments uniformly arranged in the circumferential direction by the connecting part.
In the above scheme, as shown in fig. 2, the inner magnetic ring 231 is composed of 8 arc-shaped magnetic ring segments, the outer magnetic ring 232 is composed of 2 arc-shaped magnetic ring segments, and the two arc-shaped magnetic ring segments are respectively arranged in the installation cavity at the bottom 11 of the rotary drum of the washing machine, the 8 arc-shaped magnetic ring segments form an annular magnet, and the 2 arc-shaped magnetic ring segments form an annular magnet. The flange 12 is detachably connected with the bottom 11 of the rotary drum of the washing machine through a connecting part.
The balancing device 2 of the washing machine is not limited to be arranged at the bottom of the inner barrel of the pulsator washing machine, and can be arranged at the upper part of the barrel body or at the front end or the rear end of the rotary drum washing machine.
Example four
In this embodiment, a balancing device 2 of a washing machine comprises a hollow annular shell 21 coaxially arranged on a rotary tub 1 of the washing machine, a balancing ball 22 movably arranged in the hollow annular shell 21, and a damping part 23 for generating magnetic damping for the moving balancing ball 22.
Compared with the three phases of the embodiment, the damper 23 is disposed outside the inner annular surface of the hollow annular housing 21 to form an inner magnetic ring 231.
EXAMPLE five
In this embodiment, a balancing apparatus 2 for a washing machine comprises a hollow annular housing 21 coaxially disposed on a rotary tub 1 of the washing machine, a balancing ball 22 movably disposed in the hollow annular housing 21, and a damping part 23 for magnetically damping the moving balancing ball 22.
Compared with the embodiment, the damper 23 is disposed outside the outer annular surface of the hollow annular housing 21 to form the outer magnetic ring 232.
EXAMPLE six
In this embodiment, a balancing device 2 of a washing machine comprises a hollow annular shell 21 coaxially arranged on a rotary tub 1 of the washing machine, a balancing ball 22 movably arranged in the hollow annular shell 21, and a damping part 23 for generating magnetic damping for the moving balancing ball 22.
As shown in fig. 5, the present embodiment includes an inner tub and an outer tub 4 of the washing machine, a balancing device 2 is arranged at the bottom of the inner tub, an upper liquid balancing ring 3 is arranged at the upper part of the inner tub, the upper liquid balancing ring can also be arranged as the balancing device 2, clothes are eccentric 5, a motor 6, and the number and diameter of the balancing balls 22 are designed as follows:
as shown in FIG. 4, suppose the central point of the whole system is O, the center of mass of the whole system is e, the mass of the eccentric part 5 of the clothes is m, and the mass of the upper liquid balance ring 3 is m1The bottom balance device 2 has a mass m2. When the dewatering is rotating at high speed, as shown in fig. 5, the following formula one and formula two are obtained according to the force and moment balance principle:
F＝Fe+F2+F1formula one
FL＝FeLe+F2L2-F1L1Formula two
Wherein:
f is the centrifugal force generated by the eccentricity 5 of the clothes, and L is the vertical distance between the centroid of the eccentricity 5 of the clothes and the center of the whole machine.
FeThe centrifugal force generated for the center of mass of the whole machine, LeIs the vertical distance between the mass center and the center of the whole machine.
F1Centrifugal force, L, generated by a liquid balance ring at the top of the machine1The vertical distance between the liquid balance ring and the center of the whole machine.
F2For the centrifugal force, L, generated by the bottom balancing device 22The vertical distance between the balancing device 2 and the center of the whole machine.
In fig. 5, ω is the rotation speed of the motor 6.
The formula I and the formula II are further calculated to obtain:
mr＝mere+m2r2+m1r1
mrL＝mereLe+m2r2L2-m1r1L1
thereby calculating the related parameters such as the number and the diameter of the balance balls 22
EXAMPLE seven
In this embodiment, a balancing device 2 of a washing machine comprises a hollow annular shell 21 coaxially arranged on a rotary tub 1 of the washing machine, a balancing ball 22 movably arranged in the hollow annular shell 21, and a damping part 23 for generating magnetic damping for the moving balancing ball 22.
In this embodiment, a third embodiment is further limited, and as shown in fig. 6, the design method of the inner and outer magnetic rings 232 is as follows:
as shown in fig. 6, when the balance ball 22 moves in the magnetic field, the magnetic field generates a magnetic damping force that hinders the advance of the balance ball 22 due to the balance ball 22 cutting the magnetic induction lines. The damping force is as follows:
formula three of FB-KV
In the third formula, K is the magnetic damping coefficient. And its width L0Magnetic induction B0The gap d between the balance ball 22 and the magnetic ring1Diameter d of the balance ball 222It is related.
The specific relationship is
V is the moving speed of the balance ball 22 relative to the inner barrel.
By determining the relative speed V of the balance ball 22 and the inner barrel and the diameter d of the balance ball 222And a gap d1And the balance ball 22 can be ensured not to collide in the initial stage, and the size of the magnetic ring and the corresponding magnetic induction intensity can be determined when the balance ball 22 is in the optimum position for correcting eccentricity in the high-speed stage, so that the optimum size and material can be determined.
Example eight
In this embodiment, a balancing apparatus for a washing machine includes a hollow annular housing coaxially disposed on a rotary tub of the washing machine, a balancing ball movably disposed in the hollow annular housing, and a damping part for generating magnetic damping to the moving balancing ball.
The present embodiment is further defined by the first, second, third, fourth and fifth embodiments, wherein the balancing apparatus further comprises a plurality of spacers moving together with the balance balls, the spacers spacing two adjacent balance balls to prevent the two adjacent balance balls from colliding with each other.
Further, the isolation body is an isolation ball made of a non-metal material, and the isolation ball is arranged between every two adjacent balance balls at intervals. Preferably, the isolation ball is made of plastic/rubber, has certain elasticity, or has small collision sound with the balance ball.
Example nine
In this embodiment, a balancing apparatus for a washing machine includes a hollow annular housing coaxially disposed on a rotary tub of the washing machine, a balancing ball movably disposed in the hollow annular housing, and a damping part for generating magnetic damping to the moving balancing ball.
Compared with the eighth embodiment, the difference is that the spacer is an annular structure sleeved on the radial outer circumference of the balance ball, and the annular structure is arranged on the rotation plane of the balance ball.
Further, the insulator is made of a non-metallic material. Preferably plastic/rubber, with some elasticity or low impact sound.
Example ten
In this embodiment, a balancing apparatus for a washing machine includes a hollow annular housing coaxially disposed on a rotary tub of the washing machine, a balancing ball movably disposed in the hollow annular housing, and a damping part for generating magnetic damping to the moving balancing ball.
This embodiment is further defined by example nine, wherein the ring structure further comprises a bump adjacent to the adjacent balancing ball.
EXAMPLE eleven
In this embodiment, a balancing apparatus for a washing machine includes a hollow annular housing coaxially disposed on a rotary tub of the washing machine, a balancing ball movably disposed in the hollow annular housing, and a damping part for generating magnetic damping to the moving balancing ball.
This embodiment is further defined by embodiment eight wherein the spacer balls have a diameter less than the diameter of the balancing balls.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (11)
1. A washing machine balancing device comprises a hollow annular shell coaxially arranged on a rotary drum of the washing machine and a balancing ball movably arranged in the hollow annular shell, and is characterized in that: the damping part is used for generating magnetic damping for the moving balance ball;
the damping part is a ring magnet, the ring magnet and the hollow ring-shaped shell are coaxially arranged, and the relationship between the magnetic damping force generated by the balance ball when moving in a magnetic field and the size, material and diameter of the ring magnet is as follows:
wherein K is the magnetic damping coefficient, L0Is the width of the ring magnet in the radial direction, B0For magnetic induction, d1To balance the gap between the ball and the magnet, d2The diameter of the balance ball.
2. A balancing device for washing machines according to claim 1, characterized in that:
the annular magnet is arranged on the outer side of at least one of the upper surface, the lower surface, the inner annular surface and the outer annular surface of the hollow annular shell;
or the annular magnet is arranged on at least one of the upper surface, the lower surface, the inner annular surface and the outer annular surface of the hollow annular shell.
3. A balancing device for washing machines according to claim 1, characterized in that: the balance ball is made of a non-magnetic conductive metal.
4. A balancing device for washing machines according to claim 3, characterized in that: the balance ball is a stainless steel ball.
5. A balancing device for washing machines according to claim 1, characterized in that: the balancing device of the washing machine further comprises a plurality of isolating bodies moving together with the balancing balls, and the isolating bodies are used for arranging two adjacent balancing balls at intervals.
6. A balancing device for washing machines, according to any one of claims 1 to 5, characterized in that: the washing machine balancing device is arranged at the bottom of the rotary drum of the washing machine.
7. A washing machine balancing device according to claim 6, characterized in that: the hollow annular shell of the balancing device of the washing machine comprises a first shell and a second shell, wherein the first shell comprises a chamber capable of accommodating the movement of the balancing ball, and the second shell and the first shell are matched to seal the chamber.
8. A balancing device for washing machines according to claim 7, characterized in that: the first shell is integrally formed at the bottom of the rotary drum of the washing machine, a flange is mounted at the bottom of the rotary drum of the washing machine, and the flange forms a second shell.
9. A balancing device for washing machines according to claim 7 or 8, characterized in that: the damping part is arranged on the outer side of the inner ring surface of the hollow annular shell to form an inner magnetic ring, and/or the damping part is arranged on the outer side of the outer ring surface of the hollow annular shell to form an outer magnetic ring.
10. A balancing device for washing machines, according to claim 9, characterized in that: the bottom of the rotary drum of the washing machine is provided with a connecting part connected with a flange, and the inner magnetic ring and/or the outer magnetic ring are/is divided into magnetic ring segments uniformly arranged in the circumferential direction by the connecting part.
11. A washing machine characterized by: comprising a washing machine balancing device according to any one of claims 1-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711107761.7A CN109778493B (en) | 2017-11-10 | 2017-11-10 | Washing machine balancing device and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711107761.7A CN109778493B (en) | 2017-11-10 | 2017-11-10 | Washing machine balancing device and washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109778493A CN109778493A (en) | 2019-05-21 |
| CN109778493B true CN109778493B (en) | 2022-06-21 |
Family
ID=66484970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711107761.7A Active CN109778493B (en) | 2017-11-10 | 2017-11-10 | Washing machine balancing device and washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109778493B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102116527B1 (en) * | 2013-06-07 | 2020-06-05 | 삼성전자주식회사 | Balancer of washing machine |
| CN105648705A (en) * | 2014-11-25 | 2016-06-08 | 青岛海尔洗衣机有限公司 | Washing machine balancing ring and washing machine |
| CN107034622B (en) * | 2017-05-31 | 2020-10-02 | 青岛海尔智能技术研发有限公司 | Balance ring, control method for balance ring and washing machine |
| CN107061599B (en) * | 2017-06-06 | 2023-05-23 | 广东电网有限责任公司电力科学研究院 | Ball type electric vortex omnidirectional damping device |
-
2017
- 2017-11-10 CN CN201711107761.7A patent/CN109778493B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109778493A (en) | 2019-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103911815B (en) | Washing machine and washing machine driving method | |
| CN104455143A (en) | Magnetic damper with floating ring | |
| EP2836634B1 (en) | Laundry treating apparatus | |
| CN110725102B (en) | Counter weight balance ring of washing equipment | |
| CN103946437A (en) | Laundry treating apparatus | |
| CN105525484B (en) | Inner barrel for washing machine and washing machine | |
| AU2014210522A1 (en) | Balancer and washing machine having the same | |
| CN107034622B (en) | Balance ring, control method for balance ring and washing machine | |
| CN107100878A (en) | A kind of magnetic drive pump with magnetic suspension bearing | |
| EP3243948B1 (en) | Washing machine and balancing ring for washing machine | |
| US10316450B2 (en) | Washing machine | |
| CN106979226B (en) | Combined magnetic suspension bearing | |
| CN106906609B (en) | Household appliance for treating items of clothing and method for operating a household appliance | |
| CN109778493B (en) | Washing machine balancing device and washing machine | |
| RU2663411C1 (en) | Washing machine and balancing ring for use in washing machine | |
| CN105241608B (en) | A kind of main shaft built-in electromagnetic drive-type dynamic poise device | |
| CN109681525B (en) | Magnetic suspension bearing and motor | |
| CN217440578U (en) | Magnetic suspension bearing and compressor | |
| CN104454991B (en) | Self-induction magnetic bearing | |
| US10337134B2 (en) | Laundry device | |
| CN204344778U (en) | Magnetic damper with floating ring | |
| CN204344679U (en) | Self-induction magnetic bearing | |
| CN221126987U (en) | Brushless motor inner rotor and brushless motor | |
| CN206723116U (en) | A kind of magnetic drive pump with magnetic suspension bearing | |
| GB739666A (en) | Improvements relating to balancing means for rotary apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220525 Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Applicant after: QINGDAO HAIER SMART TECHNOLOGY R&D Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. Applicant before: QINGDAO HAIER SMART TECHNOLOGY R&D Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |