CN107034622B - Balance ring, control method for balance ring and washing machine - Google Patents
Balance ring, control method for balance ring and washing machine Download PDFInfo
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- CN107034622B CN107034622B CN201710398233.5A CN201710398233A CN107034622B CN 107034622 B CN107034622 B CN 107034622B CN 201710398233 A CN201710398233 A CN 201710398233A CN 107034622 B CN107034622 B CN 107034622B
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- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000005406 washing Methods 0.000 title claims description 78
- 238000013016 damping Methods 0.000 claims abstract description 42
- 230000006698 induction Effects 0.000 claims abstract description 36
- 239000000696 magnetic material Substances 0.000 claims abstract description 7
- 238000005192 partition Methods 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims 2
- 239000004744 fabric Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 21
- 230000000694 effects Effects 0.000 description 13
- 230000001360 synchronised effect Effects 0.000 description 7
- 238000007789 sealing Methods 0.000 description 5
- 230000001052 transient effect Effects 0.000 description 5
- 239000003381 stabilizer Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/20—Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
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- D06F2202/065—
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- D06F2204/10—
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Abstract
The invention discloses a balance ring, comprising: the annular body comprises a first annular cavity and a second annular cavity, wherein a plurality of balls made of non-magnetic materials are arranged in the first annular cavity, and a plurality of magnetic blocks are arranged in the second annular cavity; the magnetic induction lines of the plurality of magnetic blocks are cut when the plurality of spheres roll to generate magnetic eddy damping. In the invention, the magnetic field is generated by the magnetic block, and the magnetic eddy damping generated by the cutting magnetic induction line of the ball body is utilized to ensure that the rotating speed of the ball body at the starting moment is close to the rotating speed of the roller, and the liquid is prevented from being used, so that the problem of liquid leakage in the use process of the balance ring is avoided.
Description
Technical Field
The invention relates to the technical field of washing machines, in particular to a balance ring, a control method for the balance ring and a washing machine.
Background
In the prior art, in order to solve the problem of dewatering vibration noise, a liquid balance ring is usually adopted to offset the eccentricity generated when a drum rotates. However, 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.
The prior art discloses a drum-type washing machine's gimbal device, including setting up two at least annular cavities at the cylinder border, wherein at least one cavity is for the spheroid gimbal that is equipped with the spin, and has at least a cavity for the liquid gimbal that is equipped with flowing liquid, has adopted spin and liquid combination form's passive gimbal system, for spheroidal transient excitation problem when avoiding dehydration start-up, be full of the silicone oil that has certain viscosity in spheroid gimbal to guarantee start-up spheroid rotational speed is close with the cylinder rotational speed in the twinkling of an eye, but still has the problem that silicone oil revealed.
Disclosure of Invention
The embodiment of the invention provides a balance ring, a control method for the balance ring and a washing machine, and aims to solve the problem of how to avoid liquid leakage in the use process of the balance ring. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to a first aspect of the embodiments of the present invention, there is provided a balance ring, including an annular body, the body including a first annular cavity and a second annular cavity, the first annular cavity being provided with a plurality of balls made of non-magnetic materials, the second annular cavity being provided with a plurality of magnetic blocks; the magnetic induction lines of the plurality of magnetic blocks are cut when the plurality of spheres roll to generate magnetic eddy damping.
In this embodiment, the magnetic path in the second annular cavity can produce magnetic field, when washing machine begins to dewater and rotate, a plurality of spheroids can be along first annular cavity reciprocating roll under inertial effect, and then the magnetic induction line in cutting magnetic field, produce magnetic eddy damping, and when washing machine just begins to dewater and rotate, a plurality of spheroids are great at inertial effect moving speed, the magnetic eddy damping that produces is great, when washing machine revolving drum moving speed is great, a plurality of spheroidal moving speed is less, the magnetic eddy damping that produces is less, thereby realize the synchronous revolution of a plurality of spheroids and cylinder, play good anti-bias effect, guarantee the stability of cylinder revolving drum. In the invention, the magnetic field is generated by the magnetic block, and the magnetic eddy damping generated by the cutting magnetic induction line of the ball body is utilized to ensure that the rotating speed of the ball body is close to the rotating speed of the roller at the starting moment, so that the use of liquid is avoided, and the problem of liquid leakage in the use process of the balance ring can be further avoided.
According to a second aspect of the embodiments of the present invention, there is provided a control method for a gimbal, the gimbal includes an annular body, the body includes a first annular chamber and a second annular chamber, a plurality of balls made of a non-magnetic material are disposed in the first annular chamber, and a plurality of electromagnetic coils are disposed in the second annular chamber, the control method includes: within a set time after the washing machine is started, supplying power to a plurality of electromagnetic coils according to a preset current value; after a set time, reducing the current passing through the plurality of electromagnetic coils along with the increase of the rotating speed of the washing machine drum; when the rotating speed of the washing machine drum reaches the maximum, the power supply to the plurality of electromagnetic coils is stopped.
In this embodiment, the magnetic block in the second annular cavity generates a magnetic field, when the washing machine starts to spin, the plurality of balls will roll back and forth along the first annular cavity under the action of inertia to cut the magnetic induction lines of the magnetic field, thereby generating magnetic eddy current damping, and in this embodiment, in a set time after the washing machine starts, the current passing through the plurality of electromagnetic coils is determined to be a preset current, which indicates that the operation time of the washing machine is short, when the washing machine drum starts to operate, the plurality of balls generate transient high-speed relative motion, the current passing through the electromagnetic coils is controlled to be the preset current, the magnetic eddy current damping generated when the plurality of balls move to cut the magnetic induction lines is large, thereby preventing the plurality of balls from running too fast to affect the stability of the drum rotation, after the set time, the current passing through the plurality of electromagnetic coils is reduced along with the increase of the rotation speed of the washing machine drum, when the rotating speed of the roller is higher and higher, the relative rotating speed of the plurality of balls and the roller is lower and lower, therefore, the control current is reduced, the magnetic eddy current damping generated by cutting the magnetic induction lines by a plurality of spheres is smaller and smaller, when the rotating speed of the washing machine drum reaches the maximum rotating speed, the ball body and the drum are relatively static, the power supply for the electromagnetic coils is stopped, the current passing through the electromagnetic coils is zero, the generated magnetic eddy current damping is zero, thereby realizing the synchronous rotation of a plurality of spheres and the roller, having good anti-deflection effect and ensuring the stability of the roller revolving drum, the invention utilizes the electromagnetic coil to generate a magnetic field, and the magnetic eddy damping generated by cutting the magnetic induction lines by the ball body is utilized to ensure that the rotating speed of the ball body is close to the rotating speed of the roller at the starting moment, thereby avoided using liquid, and then can avoid appearing the problem that liquid revealed in the stabilizer ring use.
A third embodiment of the present invention provides a washing machine including the above balance ring.
In this embodiment, the magnetic path in the second annular cavity can produce magnetic field, when washing machine begins to dewater and rotate, a plurality of spheroids can be along first annular cavity reciprocating roll under inertial effect, and then the magnetic induction line in cutting magnetic field, produce magnetic eddy damping, and when washing machine just begins to dewater and rotate, a plurality of spheroids are great at inertial effect moving speed, the magnetic eddy damping that produces is great, when washing machine revolving drum moving speed is great, a plurality of spheroidal moving speed is less, the magnetic eddy damping that produces is less, thereby realize the synchronous revolution of a plurality of spheroids and cylinder, play good anti-bias effect, guarantee the stability of cylinder revolving drum. In the invention, the magnetic field is generated by the magnetic block, and the magnetic eddy damping generated by the cutting magnetic induction line of the ball body is utilized to ensure that the rotating speed of the ball body is close to the rotating speed of the roller at the starting moment, so that the use of liquid is avoided, and the problem of liquid leakage in the use process of the balance ring can be further avoided.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram illustrating a gimbal configuration in accordance with an exemplary embodiment;
FIG. 2 is a schematic diagram illustrating a detail configuration at A of a gimbal in accordance with an exemplary embodiment;
FIG. 3 is a schematic illustration of a gimbal body according to an exemplary embodiment;
FIG. 4 is a flowchart illustrating a method of notifying a gimbal in accordance with an exemplary embodiment;
FIG. 5 is a flowchart illustrating a method of notifying a gimbal in accordance with an exemplary embodiment.
Description of reference numerals: 10. a first ring cavity; 11. a sphere; 20. a second ring cavity; 21. a magnetic block; 22. a card slot; 23. a baffle plate; 24. fixing grooves; 30. an annular cover body; 31. a fixing hole; 40. buckling the bulges; 50. an annular partition.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed. Herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. As for the methods, products and the like disclosed by the embodiments, the description is simple because the methods correspond to the method parts disclosed by the embodiments, and the related parts can be referred to the method parts for description.
The first embodiment of the present invention discloses a balance ring, as shown in fig. 1 to 3, which comprises an annular body, wherein the body comprises a first annular cavity 10 and a second annular cavity 20, a plurality of balls 11 made of non-magnetic materials are arranged in the first annular cavity 10, and a plurality of magnetic blocks 21 are arranged in the second annular cavity 20; the magnetic induction lines of the plurality of magnetic blocks are cut when the plurality of spheres roll to generate magnetic eddy damping.
In the embodiment, the magnetic block in the second annular cavity can generate a magnetic field, when the washing machine starts to dehydrate and rotate, the plurality of spheres can roll along the first annular cavity in a reciprocating manner under the action of inertia, so that magnetic induction lines of the magnetic field are cut, magnetic eddy damping is generated, when the washing machine starts to dehydrate and rotate, the plurality of spheres move at a higher speed under the action of inertia, the generated magnetic eddy damping is higher, when the movement speed of the washing machine drum is higher, the movement speed of the plurality of spheres is lower, the generated magnetic eddy damping is lower, so that synchronous rotation of the plurality of spheres and the drum is realized, a good anti-bias effect is achieved, the stability of the drum is ensured, and because the magnetic block is used for generating the magnetic field, and the magnetic eddy damping is generated by cutting the magnetic induction lines of the spheres to ensure that the rotation speed of the spheres at the moment of starting is close to the rotation speed of the drum, so that, and then can avoid appearing the problem that liquid was revealed in the stabilizer ring use.
Optionally, in the above embodiments, the magnetic blocks are arranged in various ways, and as an optional embodiment, the magnetic blocks are all electromagnetic coils, and the electromagnetic coils are electrically connected with each other; as another alternative embodiment, the plurality of magnetic blocks are permanent magnetic blocks.
As shown in fig. 1 to 3, in the present embodiment, the plurality of magnetic blocks 21 are arranged in various manners, the plurality of magnetic blocks 21 are electromagnetic coils, and the plurality of electromagnetic coils are electrically connected to each other, or the plurality of magnetic blocks 21 are permanent magnetic blocks.
Optionally, in any of the above embodiments, the first annular chamber 10 and the second annular chamber 20 are coaxially arranged side by side or coaxially stacked.
For the balance ring of the present embodiment, the first annular cavity 10 and the second annular cavity 20 are coaxially arranged side by side as shown in fig. 1 and fig. 2, the balance ring body includes two annular cavities, that is, the first annular cavity 10 and the second annular cavity 20 are coaxially arranged side by side, the second annular cavity 20 is located on the inner wall of the first annular cavity 10, and optionally, the second annular cavity 20 may also be located on the outer wall of the first annular cavity 10. The first annular cavity 10 and the second annular cavity 20 are coaxially arranged side by side, so that the plurality of balls 11 in the first annular cavity 10 can more effectively cut the magnetic induction lines of the magnetic field formed by the magnetic blocks 21 in the second annular cavity 20.
Alternatively, the first annular cavity 10 and the second annular cavity 20 are coaxially stacked, that is, the first annular cavity 10 and the second annular cavity 20 are stacked up and down in use, as shown in fig. 3, the balance ring body includes two annular cavities, that is, the first annular cavity 10 and the second annular cavity 20, and the first annular cavity 10 and the second annular cavity 20 are coaxially stacked.
Alternatively, in the above embodiment, optionally, the magnetic blocks 21 are bar magnets, and when the first annular cavity 10 and the second annular cavity 20 are coaxially arranged, the S poles and the N poles of the magnetic blocks 21 are arranged in the radial direction. Wherein radial refers to the radial direction along the first annular cavity 10 as illustrated in fig. 1. The S pole and the N pole of the magnetic block 21 are radially arranged, so that the magnetic induction lines of the magnetic field generated by the magnetic block 21 are relatively dense around the magnetic block 21, that is, the magnetic induction lines at the position of the ball 11 are relatively dense.
As another embodiment of the present invention, when the first annular chamber 10 and the second annular chamber 20 are coaxially stacked, the S-pole and the N-pole of the magnetic block 21 are arranged in the axial direction. In the present embodiment, the axial direction refers to the vertical direction of the gimbal in use as shown in fig. 1. When the first annular cavity 10 and the second annular cavity 20 are stacked, the first annular cavity 10 is above or below the second annular cavity, at this time, the S pole and the N pole of the magnetic block 21 are arranged in the axial direction, the magnetic induction line density above or below the magnetic block 21 is high, that is, the magnetic induction line density of the ball 11 hiding at the position is high.
Optionally, in any one of the above embodiments, the height H of the magnetic block 21 in the axial direction and the diameter of the spherical body 11 satisfy: and H is K, D, K is a coefficient, and the value range of K is between 0.8 and 1.5. As an implementation manner of the embodiment of the present invention, as shown in fig. 1 and fig. 3, the diameter D of the spherical body 11 is 19mm to 20mm, the height H of the magnetic blocks 21 is 20mm, the number of the spherical bodies is set according to actual requirements, and can be set to 20, 18, and the like, the width, the thickness, and the number of the magnetic blocks 21 are obtained according to different platform tests, and the generated magnetic eddy damping is generally required to be equivalent to 380cst in viscosity.
Optionally, a plurality of baffles 23 are arranged in the second annular cavity 20, and a clamping groove 22 is formed between adjacent baffles 20; each magnetic block 21 is placed in a card slot 22.
As shown in fig. 1 to 3, a plurality of slots 22 are disposed in the second annular cavity 20, the slots 22 are uniformly distributed in the second annular cavity 20, and the magnetic blocks 21 are disposed in the slots 22. In this embodiment, the magnetic block 21 is disposed inside the slot 22, so that the magnetic block 21 is effectively prevented from moving along with the rotating drum, the magnetic field formed by the magnetic block 21 is more stable, the slot 22 is uniformly disposed inside the second annular cavity 20, and the magnetic induction lines of the magnetic field formed by the magnetic block 21 are more uniformly distributed.
In the above embodiments, the clamping grooves may be arranged in various ways, and as an alternative embodiment, the second annular cavity includes a plurality of baffles, and the clamping grooves are formed by arranging the plurality of baffles at intervals in the second annular cavity.
For the balance ring of the present embodiment, the second annular cavity 20 includes a plurality of baffles 23 therein, and the locking grooves 22 are formed by the plurality of baffles 23 arranged at intervals. Utilize a plurality of baffles 23 interval to set up and form draw-in groove 22, make the structure of second annular chamber 20 simpler, production and processing is more convenient.
Optionally, in any of the above embodiments, the balance ring further includes an annular cover, and the annular cover and the balance ring body are sealed and covered.
As shown in fig. 1, the balance ring of the present embodiment further includes an annular cover 30, and the annular cover 30 and the balance ring body are sealed and covered, that is, the second annular cavity 20 and the first annular cavity 10 are sealed and covered. In this embodiment, by providing the annular cover 30 hermetically covered with the balance ring body, the ball 11 or the magnet 21 can be effectively prevented from falling out of the first annular cavity 10 or the second annular cavity 20 in the process that the balance ring rotates along with the drum.
In the above embodiments, there are various embodiments of the sealing cover of the annular cover body and the balance ring body, and as an alternative embodiment, the sealing cover includes an annular cover body 30 having one or more fixing holes 31, the top of one or more baffles 23 has fixing slots 24, and the number of the fixing holes 31 and the number of the fixing slots 24 correspond to each other. As shown in fig. 1 and 2, fixing grooves 24 are formed on a plurality of the blocking plates 23, and the ring-shaped cover 30 includes a plurality of fixing holes 31, and the positions of the plurality of fixing grooves 24 and the plurality of fixing holes 31 correspond to each other. The ring-shaped cover 30 can be sealingly fixed to the balance ring body by inserting fixing bolts into the fixing grooves 24 through the fixing holes 31.
Optionally, in another embodiment of the sealing cover of the annular cover 30 and the body, the annular cover 30 is connected with the balance ring body in a snap-fit manner to realize the sealing cover. The rim of the balancing ring of this embodiment includes a ring-shaped engaging protrusion 40, and the rim of the ring-shaped cover 30 includes a ring-shaped engaging groove (not shown) matching the shape of the engaging protrusion 40. Through the interference fit between the buckling bulge 40 and the buckling clamping groove, the buckling connection between the annular cover body 30 and the balance ring body can be further ensured, so that the sealing cover of the annular cover body 30 and the body is realized.
Optionally, in any embodiment above, the balance ring body further includes one or more annular baffles, and the one or more annular baffles separate the balance ring into a first annular cavity and a second annular cavity.
For the balance ring of the present embodiment, as shown in fig. 1 and 2, the balance ring body includes an annular partition plate 50, the annular partition plate 50 divides the balance ring into two annular cavities, namely the second annular cavity 20 and the first annular cavity 10, and the first annular cavity 10 is located outside the second annular cavity 20. Alternatively, the first annular chamber 10 may be located inside the second annular chamber 20. In this embodiment, the balance ring is divided into two annular chambers by the annular partition plate 50, which is simple in structure and convenient to process.
For the balance ring of the present embodiment, as shown in fig. 3, the balance ring body includes an annular partition plate 50, the annular partition plate 50 divides the balance ring into two annular chambers, namely a first annular chamber 10 and a second annular chamber 20, and the first annular chamber 10 is located at the lower part of the second annular chamber 20. Alternatively, the first annular chamber 10 may be located at an upper portion of the second annular chamber 20. In this embodiment, the balance ring is divided into two annular chambers by the annular partition plate 50, which is simple in structure and convenient to process.
A second embodiment of the present invention discloses a control method for a gimbal, where the gimbal includes an annular body, the body includes a first annular cavity and a second annular cavity, a plurality of balls made of non-magnetic materials are disposed in the first annular cavity, and a plurality of electromagnetic coils are disposed in the second annular cavity, and the control method is characterized in that, as shown in fig. 4, the control method includes:
step S401: and within a set time after the washing machine is started, supplying power to the plurality of electromagnetic coils according to a preset current value.
Step S402: after a set time, the current through the plurality of solenoids is reduced as the rotational speed of the washing machine drum increases.
Step S403: when the rotating speed of the washing machine drum reaches the maximum rotating speed, the power supply to the plurality of electromagnetic coils is stopped.
The set time can be set according to actual requirements, and optionally, the set time is 0.05 to 5 seconds. Preferably, the set time is 0.5 seconds, 1 second, 2 seconds, or 3 seconds.
The preset current can be set according to actual requirements, and optionally, the preset current is the maximum rated current Imax of the electromagnetic coil.
In this embodiment, the magnetic block in the second annular cavity generates a magnetic field, when the washing machine starts to spin, the plurality of balls will roll back and forth along the first annular cavity under the action of inertia to cut the magnetic induction lines of the magnetic field, thereby generating magnetic eddy current damping, and in this embodiment, in a set time after the washing machine starts, the current passing through the plurality of electromagnetic coils is determined to be a preset current, which indicates that the operation time of the washing machine is short, when the washing machine drum starts to operate, the plurality of balls generate transient high-speed relative motion, the current passing through the electromagnetic coils is controlled to be the preset current, the magnetic eddy current damping generated when the plurality of balls move to cut the magnetic induction lines is large, thereby preventing the plurality of balls from running too fast to affect the stability of the drum rotation, after the set time, the current passing through the plurality of electromagnetic coils is reduced along with the increase of the rotation speed of the washing machine drum, when the rotating speed of the roller is higher and higher, the relative rotating speed of the plurality of balls and the roller is lower and lower, therefore, the control current is reduced, the magnetic eddy current damping generated by cutting the magnetic induction lines by a plurality of spheres is smaller and smaller, when the rotating speed of the washing machine drum reaches the maximum rotating speed, the ball body and the drum are relatively static, the power supply for the electromagnetic coils is stopped, the current passing through the electromagnetic coils is zero, the generated magnetic eddy current damping is zero, thereby realizing the synchronous rotation of a plurality of spheres and the roller, having good anti-deflection effect and ensuring the stability of the roller, the invention utilizes the magnetic block to generate magnetic field, and the magnetic eddy damping generated by cutting the magnetic induction lines by the ball body is utilized to ensure that the rotating speed of the ball body is close to the rotating speed of the roller at the starting moment, thereby avoided using liquid, and then can avoid appearing the problem that liquid revealed in the stabilizer ring use.
A third embodiment of the present invention provides a control method for a gimbal, where the gimbal includes an annular body, the body includes a first annular cavity and a second annular cavity, a plurality of balls made of non-magnetic materials are disposed in the first annular cavity, and a plurality of electromagnetic coils are disposed in the second annular cavity, and the control method is characterized in that, as shown in fig. 5, the control method includes:
step S501: acquiring the rotating speed V of the washing machine drum in the process from starting to stable rotation;
step S502: judging whether V is larger than V1, and executing the step S503 when V is smaller than or equal to V1; step S504 is performed when V is greater than V1.
Step S503: and supplying power to the plurality of electromagnetic coils according to a preset current value.
Step S504: judging whether V is equal to Vmax, and executing the step S505 when V is larger than V1 and smaller than Vmax; when V is equal to Vmax, step S506 is performed.
Step S505: the current through the plurality of electromagnetic coils is reduced as V increases.
Step S506: the power supply to the plurality of electromagnetic coils is stopped.
Where Vmax is the maximum rotational speed that the washing machine drum can reach. V1 is a set rotation speed, which can be set according to actual requirements, such as 100r/min, 80r/min, etc. The preset current is the maximum rated current which can be passed by the electromagnetic coil.
In the embodiment, at the beginning of the starting stage of the washing machine drum, the drum rotating speed is low, but the instantaneous speed of the ball body is high under the action of inertia, a preset current value is used for supplying power to a plurality of electromagnetic coils, the current in the electromagnetic coils is high at the moment, the magnetic eddy current damping generated by cutting the magnetic induction lines by the ball body is high, the rotating speed of the ball body can be ensured to be close to the drum rotating speed, and in the process of gradually increasing the rotating speed of the washing machine drum, the current passing through the electromagnetic coils is gradually reduced, so the magnetic eddy current damping generated by cutting the magnetic induction lines by the ball body is gradually reduced, and the; when the rotating speed of the washing machine drum reaches the maximum value, the electromagnetic coil is stopped to be electrified, the magnetic eddy damping does not exist at the moment, and the spheres and the washing machine drum run at the same maximum speed, so that a plurality of spheres and the drum can synchronously rotate in the whole process from starting to stable running of the washing machine drum, a good anti-bias effect is achieved, and the stability of the drum is ensured.
In the above embodiments, there are various implementations of step S402 or step S505, and as an alternative implementation, after a set time has elapsed, the current passing through the electromagnetic coil is determined
K is a proportionality constant which can be set according to actual requirements, and V represents the current rotating speed value of the washing machine drum; vmaxWhich represents the maximum value that the washing machine drum speed can reach.
In this embodiment, the magnetic block in the second annular cavity generates a magnetic field, when the washing machine starts to spin, the plurality of balls will roll back and forth along the first annular cavity under the action of inertia, and then cut the magnetic induction lines of the magnetic field, so as to generate magnetic eddy current damping, and in this embodiment, when t is less than or equal to a set time, it indicates that the running time of the rotation is short, when the rotation starts to run, the plurality of balls generate transient high-speed relative motion, and the current passing through the electromagnetic coil is controlled to be the maximum current, so that the magnetic eddy current damping generated when the plurality of balls move to cut the magnetic induction lines is the maximum, so as to prevent the plurality of balls from running too fast and affecting the stability of the rotation of the drum, when t is greater than the set time, and the rotation speed V of the drum is less than Vmax, the current value passing through the electromagnetic coil is inversely proportional to the rotation speed, the relative rotating speed of the balls and the roller is smaller and smaller, so that the control current is reduced, and the magnetic eddy current damping generated by cutting the magnetic induction lines by the balls is smaller and smaller, so that the synchronous rotation of the balls and the roller is realized, a good anti-bias effect is achieved, and the stability of the roller rotating drum is ensured.
As another alternative to step S402 or step S505, after a set time has elapsed, the current I ═ k (V) through the solenoid is determinedmaxV), wherein k is a proportionality constant and can be set according to actual requirements; vmaxRepresents the maximum value that the rotating speed of the washing machine drum can reach, and V represents the current rotating speed value of the washing machine drum.
The invention discloses a washing machine in a fourth embodiment, which comprises the balance ring in any one of the embodiments. The beneficial effects of this embodiment are as described above, and are not described herein again.
Optionally, the embodiment further includes a controller, where the controller is configured to supply power to the plurality of electromagnetic coils according to a preset current value within a set time after the washing machine is started; after a set time, reducing the current passing through the plurality of electromagnetic coils as the rotating speed of the washing machine increases; when the rotating speed of the washing machine reaches the maximum rotating speed, the power supply to the plurality of electromagnetic coils is stopped. In this embodiment, the magnetic block in the second annular cavity generates a magnetic field, when the washing machine starts to spin, the plurality of balls will roll back and forth along the first annular cavity under the action of inertia to cut the magnetic induction lines of the magnetic field, thereby generating magnetic eddy current damping, and in this embodiment, within a set time after the washing machine starts, the controller determines that the current passing through the plurality of electromagnetic coils is a preset current, which indicates that the operation time of the washing machine is short, when the washing machine drum starts to operate, the plurality of balls generate transient high-speed relative motion, the controller controls the current passing through the electromagnetic coils to be the preset current, the magnetic eddy current damping generated when the plurality of balls move to cut the magnetic induction lines is large, thereby preventing the plurality of balls from running too fast and affecting the stability of the drum rotation, after the set time, the controller is configured to reduce the current passing through the plurality of electromagnetic coils along with the increase of the rotation speed of the washing machine drum, when the rotating speed of the roller is higher and higher, the relative rotating speed of the plurality of balls and the roller is lower and lower, therefore, the control current of the controller is reduced, the magnetic eddy current damping generated by cutting the magnetic induction lines by a plurality of spheres is smaller and smaller, when the rotating speed of the washing machine drum reaches the maximum rotating speed, the ball body and the drum are relatively static, the controller stops supplying power to the electromagnetic coils, the current passing through the electromagnetic coils is zero, the generated magnetic eddy current damping is zero, thereby realizing the synchronous rotation of a plurality of spheres and the roller, having good anti-deflection effect and ensuring the stability of the roller, the invention utilizes the magnetic block to generate magnetic field, and the magnetic eddy damping generated by cutting the magnetic induction lines by the ball body is utilized to ensure that the rotating speed of the ball body is close to the rotating speed of the roller at the starting moment, thereby avoided using liquid, and then can avoid appearing the problem that liquid revealed in the stabilizer ring use.
Optionally, in the above embodiment, the washing machine further includes a controller, configured to obtain a rotation speed V of the washing machine drum from start to steady rotation; when V is less than or equal to V1, supplying power to the plurality of electromagnetic coils according to a preset current value; and when V1< V < Vmax, decreasing current through the plurality of electromagnetic coils as V increases; and stopping power supply to the plurality of solenoids when V is Vmax. In the embodiment, at the beginning of the starting stage of the washing machine drum, the drum rotating speed is low, but the instantaneous speed of the ball body is high under the action of inertia, a preset current value is used for supplying power to a plurality of electromagnetic coils, the current in the electromagnetic coils is high at the moment, the magnetic eddy current damping generated by cutting the magnetic induction lines by the ball body is high, the rotating speed of the ball body can be ensured to be close to the drum rotating speed, and in the process of gradually increasing the rotating speed of the washing machine drum, the current passing through the electromagnetic coils is gradually reduced, so the magnetic eddy current damping generated by cutting the magnetic induction lines by the ball body is gradually reduced, and the; when the rotating speed of the washing machine drum reaches the maximum value, the electromagnetic coil is stopped to be electrified, the magnetic eddy damping does not exist at the moment, and the spheres and the washing machine drum run at the same maximum speed, so that a plurality of spheres and the drum can synchronously rotate in the whole process from starting to stable running of the washing machine drum, a good anti-bias effect is achieved, and the stability of the drum is ensured.
It is to be understood that the present invention is not limited to the procedures and structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (12)
1. A balance ring comprises an annular body, wherein the body comprises a first annular cavity and a second annular cavity, and is characterized in that a plurality of balls made of non-magnetic materials are arranged in the first annular cavity, and a plurality of magnetic blocks are arranged in the second annular cavity; and when the plurality of spheres roll, the magnetic induction lines of the plurality of magnetic blocks are cut to generate magnetic eddy current damping.
2. The gimbal as claimed in claim 1, wherein each of the plurality of magnetic blocks is an electromagnetic coil, and the plurality of electromagnetic coils are electrically connected to each other; or the plurality of magnetic blocks are all permanent magnets.
3. The gimbal ring of claim 1, wherein the first annular chamber and the second annular chamber are coaxially disposed side-by-side or coaxially stacked.
4. The gimbal according to claim 1, wherein a plurality of baffles are disposed in the second annular chamber, and a plurality of slots are formed between adjacent baffles; each magnetic block is arranged in a clamping groove.
5. The gimbal ring of claim 4, further comprising an annular cover having one or more securing holes, a top of the one or more baffles having securing slots; wherein, the fixed slot is equal and the position is corresponding with the fixed orifices's quantity.
6. The gimbal ring as recited in claim 5, wherein the annular cover is snap-fit to the gimbal ring body to provide a sealed closure.
7. The gimbal ring as claimed in claim 1, wherein the body is a cavity structure having an annular partition dividing the body into the first annular cavity and the second annular cavity.
8. A control method for a balance ring, the balance ring comprising an annular body, the body comprising a first annular cavity and a second annular cavity, a plurality of balls of non-magnetically conductive material disposed in the first annular cavity, and a plurality of electromagnetic coils disposed in the second annular cavity, the control method comprising:
within a set time after the washing machine is started, supplying power to the plurality of electromagnetic coils according to a preset current value;
after the set time, reducing the current passing through the plurality of electromagnetic coils along with the increase of the rotating speed of the drum of the washing machine;
and stopping power supply to the plurality of electromagnetic coils when the rotating speed of the drum of the washing machine reaches the maximum.
9. A control method for a balance ring, the balance ring comprising an annular body, the body comprising a first annular cavity and a second annular cavity, a plurality of balls of non-magnetically conductive material disposed in the first annular cavity, and a plurality of electromagnetic coils disposed in the second annular cavity, the control method comprising:
acquiring the rotating speed V of the washing machine drum in the process from starting to stable rotation;
when the V is less than or equal to V1, supplying power to the electromagnetic coils according to a preset current value, wherein V1 is a set rotating speed;
when said V1< V < Vmax, decreasing current through said plurality of said electromagnetic coils as said V increases, wherein Vmax is the maximum rotational speed that the washing machine drum can reach;
when the V is Vmax, the power supply to the plurality of electromagnetic coils is stopped.
10. A washing machine comprising a tub for containing fabric, wherein the balancing ring of any one of claims 1 to 7 is provided on an outer wall of the tub.
11. The washing machine as claimed in claim 10, wherein the plurality of magnetic blocks are all electromagnetic coils, and the plurality of electromagnetic coils are electrically connected with each other; the washing machine also comprises a controller, wherein the controller is used for supplying power to the plurality of electromagnetic coils according to a preset current value within a set time after the washing machine is started; after the set time, reducing the current passing through the plurality of electromagnetic coils along with the increase of the rotating speed of the drum of the washing machine; and stopping power supply to the plurality of electromagnetic coils when the rotating speed of the drum of the washing machine reaches the maximum.
12. The washing machine as claimed in claim 10, wherein the plurality of magnetic blocks are all electromagnetic coils, and the plurality of electromagnetic coils are electrically connected with each other; the washing machine further comprises a controller, wherein the controller is used for acquiring the rotating speed V of the washing machine drum in the process from starting to stable rotation; when the V is less than or equal to V1, supplying power to the electromagnetic coils according to a preset current value, wherein V1 is a set rotating speed; and when said V1< V < Vmax, decreasing current through said plurality of said electromagnetic coils as said V increases, wherein Vmax is the maximum rotational speed that the washing machine drum can reach; and stopping power supply to the plurality of electromagnetic coils when the V is Vmax.
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| CN107525488B (en) * | 2017-08-18 | 2021-08-27 | 青岛胶南海尔洗衣机有限公司 | Washing machine with micro-moving ring and eccentricity detection method |
| CN109778493B (en) * | 2017-11-10 | 2022-06-21 | 青岛海尔洗衣机有限公司 | Washing machine balancing device and washing machine |
| CN111850975B (en) * | 2019-04-20 | 2022-09-20 | 青岛海尔智能技术研发有限公司 | Reset control method of washing machine balancing device and washing machine |
| CN114059279B (en) * | 2020-07-30 | 2023-03-31 | 广东美的白色家电技术创新中心有限公司 | Control method, household appliance and computer readable storage medium |
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Effective date of registration: 20201109 Address after: 266101 No. 1 Haier Road, Laoshan District, Shandong, Qingdao Patentee after: QINGDAO HAIER SMART TECHNOLOGY R&D Co.,Ltd. Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 No. 1 Haier Road, Laoshan District, Shandong, Qingdao Patentee before: QINGDAO HAIER SMART TECHNOLOGY R&D Co.,Ltd. |