CN103459700A - Method for determining imbalance in drum washing machine - Google Patents
Method for determining imbalance in drum washing machine Download PDFInfo
- Publication number
- CN103459700A CN103459700A CN2012800145921A CN201280014592A CN103459700A CN 103459700 A CN103459700 A CN 103459700A CN 2012800145921 A CN2012800145921 A CN 2012800145921A CN 201280014592 A CN201280014592 A CN 201280014592A CN 103459700 A CN103459700 A CN 103459700A
- Authority
- CN
- China
- Prior art keywords
- rpm
- rotating part
- motor
- washing machine
- variation
- 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.)
- Granted
Links
- 238000005406 washing Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000018044 dehydration Effects 0.000 description 14
- 238000006297 dehydration reaction Methods 0.000 description 14
- 238000003756 stirring Methods 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/48—Preventing or reducing imbalance or noise
-
- 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
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/16—Imbalance
-
- 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
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/24—Spin speed; Drum movements
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/26—Imbalance; Noise level
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/46—Drum speed; Actuation of motors, e.g. starting or interrupting
- D06F2105/48—Drum speed
-
- 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
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/52—Changing sequence of operational steps; Carrying out additional operational steps; Modifying operational steps, e.g. by extending duration of steps
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
- Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
Abstract
The present invention relates to a method for determining an imbalance in a drum washing machine. The method comprises the steps of: increasing a rotational speed of a motor of the drum washing machine to a target RPM, and then measuring an RPM for each rotation section; comparing the RPM for each rotation section to an RPM limit to obtain a comparison result; and determining whether an imbalance occurs according to the comparison result.
Description
Technical field
The present invention relates to roller washing machine, more specifically, relate to for the imbalance of roller washing machine and determine method, in the process of dehydration, change by the RPM for each rotating part and RPM, determined whether uneven the generation.
Background technology
Usually, washing machine can be divided into rotary drum washing machine and roller washing machine.
Rotary drum washing machine is the water tank type washing machine, and it rotates wash bucket on vertical axis, and rotating rotary drum, to stir and to wash the clothing in the washings that immerse washtub.
The power that roller washing machine produces while falling with rear clothing that clothing is moved up with the horizontal drum rotation that accommodates therein clothing and the frictional force between swing roller and clothing are carried out washing clothes.
Especially, when using roller washing machine, can reduce the damage to clothing, clothing is not wound around, and has realized beating and the clean result of the clothing that rubs.Recently, the use of roller washing machine is very general.
Above-mentioned structure is to help to understand background technology of the present invention, must not mean that its technical field under the present invention is by extensively known.
Summary of the invention
Technical problem
Traditional roller washing machine carries out the balance dehydration procedure, so that, when carrying out main dehydration procedure, clothing is attached on the inwall of cylinder.
During the balance dehydration procedure, determine whether to occur uneven.When the balancer that is connected to bucket has little weight, due to the rotation of cylinder, the bucket of back-up roller is moved.
Yet, because unbalanced generation is determined in the variation according to the RPM of each rotating part only, the raising of the RPM caused due to the motion of bucket and reduce and can not fully be reflected.Therefore, under normal mode, uneven determine may be wrong or be not performed.
The present invention can solve such problem, it is a kind of for determining the unbalanced method of roller washing machine that one aspect of the present invention provides, wherein, additionally be identified for the variation of the RPM of the RPM of each rotating part and each rotating part, and determine whether imbalance occurs in the process of dehydration procedure.
Technical scheme
According to an aspect of the present invention, for determining that the unbalanced method of roller washing machine comprises: increase the RPM of motor to target RPM, then measure the RPM for each rotating part; By the RPM of each rotating part and the contrast of RPM limit value; And, according to comparing result, determine whether to occur uneven.
Determining whether to occur imbalance can comprise: determine when the RPM of each rotating part departs from the RPM limit value imbalance occurs.
Determining whether to occur imbalance can comprise: when the RPM of each rotating part drops on the RPM limit value, according to the variation of the RPM of each rotating part, determine whether to occur uneven.
When the variation of the RPM of each rotating part falls into preset value, determine imbalance will not occur.
When the variation of the RPM of each rotating part surpasses preset value, determine occur uneven.
Beneficial effect
According to one or more embodiment of the present invention, be identified for the variation of the RPM of the RPM of each rotating part and each rotating part, strengthened uneven definite accuracy.
The accompanying drawing explanation
By reference to the accompanying drawings, by following detailed description, above-mentioned and other side, Characteristics and advantages of the present invention will become obvious.
Fig. 1 is the structured flowchart according to the unbalanced device for definite roller washing machine of one embodiment of the invention;
Fig. 2 is for explaining the definite flow chart of imbalance according to the roller washing machine of one embodiment of the invention;
Fig. 3 is the curve map illustrated according to the RPM of the motor in the balance dehydration of one embodiment of the invention; And
Fig. 4 is the schematic diagram illustrated according to the rotating part of the cylinder of one embodiment of the invention.
The specific embodiment
Describe below with reference to the accompanying drawings embodiments of the invention in detail.It should be noted that accompanying drawing and do not lie in accurate dimension, just to describing convenient and clarification needs, can be exaggerated aspect the size of its thickness at lines or parts.In addition, by considering function of the present invention, limit term used herein, custom or intention according to user or operator, can change these terms.Therefore, should disclose term is limited according to integral body herein.
Fig. 1 is the structured flowchart according to the unbalanced device for definite roller washing machine of one embodiment of the invention.
With reference to figure 1, comprise control module 10, motor 20 and load measuring unit 30 for the unbalanced device of determining roller washing machine according to an embodiment of the invention.
Motor 20 is for the swing roller (not shown).Motor 20 for example can comprise general-purpose machine.
Motor 20 can be directly installed on the central shaft of cylinder, or is arranged on a side of bucket.When motor 20 is arranged on a side of bucket, the moment of torsion that motor 20 produces transmits by the power transfering device (not shown) of for example belt, belt pulley or gear.
Load measuring unit 30 is for measuring the load of motor 20, and its rotation by cylinder produces.
When starting dehydration, control module 10 is carried out balance dehydration and main dehydration, controls motor 20 simultaneously.
Main dehydration refers to that the High Rotation Speed cylinder is to remove the process of infiltrating the washings in clothing.
The balance dehydration referred to before main dehydration is carried out, and when clothing is attached on the inwall of cylinder, measured unbalanced value to determine whether to occur unbalanced process.
The balance dehydration comprises stirs operation, clothing attach operation, dehydrating operations and uneven definite operation.Stirring operates in cylinder stirs clothing, so that clothing does not concentrate on a side of cylinder.The clothing attach operation determines whether imbalance occurs when clothing is attached to the inwall of cylinder.Dehydrating operations is removed washings or foam from clothing.Uneven definite operation determines whether imbalance occurs after dehydrating operations.
Especially, in clothing attach operation and uneven definite operating process, with target rotational speed electric rotating machine 20, so that clothing is attached on the inwall of cylinder.Therefore, the load of measured motor 20 according to load measuring unit 30, measure the RPM of motor 20, according to the RPM of motor 20, determines whether to occur uneven.
The RPM that control module 10 is measured for the motor 20 of each rotating part.Control module 10 determines whether the measured RPM of each rotating part in a plurality of rotating parts falls into RPM limit value (limit is called again scope).When RPM departs from the RPM limit value, control module 10 is determined uneven the generation.
In traditional method, the variation of the RPM measured for each rotating part of cylinder is all with the preset value contrast, thereby determines whether to occur uneven.Yet, according to embodiments of the invention, although the variation of the RPM of each rotating part falls into preset value, except the variation of the RPM of each rotating part, the RPM of each rotating part also can be used to determine whether imbalance occurs.Therefore, can improve uneven definite accuracy or accuracy.
On the other hand, when the RPM of each rotating part falls into the RPM limit value, the variation of the RPM of each rotating part can be extracted, thereby can determine whether this variation falls into preset value.Then, according to definite result, determine whether to occur uneven.
The RPM limit value can be 10% of target RPM.
With reference to figure 2, Fig. 3 and Fig. 4, will describe in detail according to an embodiment of the invention for determining the unbalanced method of roller washing machine.
Fig. 2 is for explaining the definite flow chart of imbalance according to the roller washing machine of one embodiment of the invention.Fig. 3 is the curve map illustrated according to the RPM of the motor in the balance dehydration of one embodiment of the invention.Fig. 4 is the schematic diagram illustrated according to the rotating part of the cylinder of one embodiment of the invention.
With reference to figure 2, at step S10, control module 10 is controlled motor 20, increases to 45RPM with the RPM by motor 20, thereby stirs cylinder in side to side direction.Therefore, the clothing in cylinder can be uniformly distributed, not concentrate on a side of bucket.
Then, at step S20 and S30, control module 10 increases to target RPM by the RPM of motor 20, and checks whether the RPM of motor 20 reaches target RPM.
Target RPM can be set to 95RPM.Target RPM is not limited to 95RPM, but can be set to the speed on the inwall that makes clothing be attached to cylinder.
When the RPM of motor 20 reaches target RPM, control module 10 is not controlled motor 20.Motor 20 and cylinder are allowed through inertia and rotate freely.Now, at step S40, load measuring unit 30 is measured the load for the motor 20 of each rotating part of motor 20, and the load measure of control module 10 based on motor 20 is for the RPM of each rotating part.
With reference to figure 4, according to the anglec of rotation of motor 20, the rotating decomposition of motor 20 is advanced to a plurality of rotating parts, for each rotating part, measure the RPM of motor 20.
In the present embodiment, motor 20 comprises 12 rotating part A to L, by the rotation round of cutting apart motor 20 with 30 degree, obtains.
By this way, at step S50, can be measured and can be contrasted with the RPM limit value for the RPM of each rotating part, thus determine whether the RPM of each rotating part falls into the RPM limit value.
At step S90, when the RPM for each rotating part departs from the RPM limit value, control module 10 determines that generation is uneven.
Therefore, control module 10 can check whether the RPM for each rotating part falls into the RPM limit value, and therefore reaction, has improved uneven definite accuracy or accuracy rate due to the mistake that the motion of bucket produces.
At step S60, when the RPM for each rotating part falls into the RPM limit value, for the variation of the RPM of each rotating part, be extracted.
The RPM of variation between corresponding rotation section that is used for the RPM of each rotating part is different.For example, this variation can comprise the difference of the RPM between rotating part A and B, or the difference of the RPM between rotating part B and C, as shown in Figure 4.
At step S70, when the variation of the RPM for each rotating part is extracted, whether the variation that is identified for the RPM of each rotating part in a plurality of rotating parts falls into preset value.
Preset value is for determining whether to occur unbalanced reference value.When the variation of the RPM for each rotating part departs from preset value, show to compare with the RPM of current rotating part, the RPM of next rotating part is significantly different.In this case, control module 10 can determine that generation is uneven.
Therefore, at step S80, when the variation of the RPM for each rotating part falls into preset value, control module 10 determine occur uneven, at step S90, when the variation of the RPM of each rotating part surpasses preset value, control module 10 determine occur uneven.
When definite imbalance does not occur, control module 10 increases the RPM of motor 20 to carry out dehydrating operations, and when determining that generation is uneven, control module 10 is carried out the balance processed again.
Although described by reference to the accompanying drawings some embodiment, it will be appreciated by those skilled in the art that these embodiment only provide by way of example, can carry out various changes and be equal to embodiment, and without departing from the spirit and scope of the present invention.Scope of the present invention only limits by appended claim.
Claims (5)
1. one kind for determining the unbalanced method of roller washing machine, comprising:
The RPM of motor is increased to target RPM, then measure the RPM for each rotating part of described motor;
By the described RPM for each rotating part and the contrast of RPM limit value;
According to comparing result, determine whether to occur uneven.
2. method according to claim 1, wherein, determine whether that imbalance occurs to be comprised: when the described RPM for each rotating part departs from described RPM limit value, determine imbalance occurs.
3. method according to claim 1, wherein, determine whether that imbalance occurs also to be comprised: when the described RPM for each rotating part falls into described RPM limit value, determine whether to occur uneven according to the variation of the described RPM for each rotating part.
4. method according to claim 3, wherein, when the variation of the described RPM for each rotating part falls into preset value, determine imbalance will not occur.
5. method according to claim 3, wherein, when the variation of the described RPM for each rotating part surpasses preset value, determine imbalance occur.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0027484 | 2011-03-28 | ||
| KR20110027484 | 2011-03-28 | ||
| PCT/KR2012/002212 WO2012134141A2 (en) | 2011-03-28 | 2012-03-27 | Method for determining imbalance in drum washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103459700A true CN103459700A (en) | 2013-12-18 |
| CN103459700B CN103459700B (en) | 2016-10-19 |
Family
ID=46932102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280014592.1A Expired - Fee Related CN103459700B (en) | 2011-03-28 | 2012-03-27 | For determining the unbalanced method in roller washing machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20140007680A1 (en) |
| EP (1) | EP2692928A4 (en) |
| KR (1) | KR20120110047A (en) |
| CN (1) | CN103459700B (en) |
| WO (1) | WO2012134141A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106232889A (en) * | 2014-02-19 | 2016-12-14 | Lg电子株式会社 | Washing methods |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102325965B1 (en) | 2017-03-27 | 2021-11-11 | 엘지전자 주식회사 | Spinning Course Control Method of Laundry Treatment Machine |
| CN106996005B (en) * | 2017-03-28 | 2022-08-16 | 青岛海尔洗涤电器有限公司 | Distributed dehydration control method for drum washing machine |
| JP7024750B2 (en) * | 2019-03-13 | 2022-02-24 | 株式会社安川電機 | Power converter, washing machine and power conversion method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4038178A1 (en) * | 1990-11-30 | 1992-06-04 | Telefunken Electronic Gmbh | Measuring imbalance in loaded drum - during spinning of washing machine, by measuring relative imbalance and then inertia of drum |
| CN1676734A (en) * | 2002-05-17 | 2005-10-05 | Lg电子株式会社 | Dehydration control method of drum washing machine |
| CN1767352A (en) * | 2004-10-26 | 2006-05-03 | 三星电子株式会社 | Be used for controlling the apparatus and method of the motor of washing machine |
| WO2007134926A1 (en) * | 2006-05-18 | 2007-11-29 | BSH Bosch und Siemens Hausgeräte GmbH | Method for measuring and reducing an imbalance in a machine for washing and/or drying laundry |
| CN101736553A (en) * | 2009-12-04 | 2010-06-16 | 合肥荣事达三洋电器股份有限公司 | Method for detecting dehydration imbalance of inclined drum washing machine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100413467B1 (en) * | 2001-11-29 | 2004-01-03 | 엘지전자 주식회사 | Method for controlling dehydration in drum-type washing machine |
| KR101019475B1 (en) * | 2003-10-16 | 2011-03-07 | 엘지전자 주식회사 | method for controlling dehydration in drum type washing machine |
| KR100690687B1 (en) * | 2005-08-19 | 2007-03-09 | 엘지전자 주식회사 | Method for sesing the type of unbalance in washing machine |
| KR100788974B1 (en) * | 2005-08-19 | 2007-12-27 | 엘지전자 주식회사 | Method for sensing vibration of washing machine |
| KR100792237B1 (en) * | 2005-09-05 | 2008-01-07 | 엘지전자 주식회사 | Spin-drying control apparatus and method for washing machine |
| EP1762648B1 (en) * | 2005-09-07 | 2016-11-02 | LG Electronics Inc. | Dehydration controlling apparatus for washing machine and method thereof |
| KR20070048918A (en) * | 2005-11-07 | 2007-05-10 | 삼성전자주식회사 | Washing machine and its unbalance detection method |
| US7581272B2 (en) * | 2006-05-19 | 2009-09-01 | Whirlpool Corporation | Dynamic load detection for a clothes washer |
| NZ552422A (en) * | 2006-12-21 | 2009-09-25 | Fisher & Paykel Appliances Ltd | Laundry appliance including control means which energises a motor to evenly distribute a load in response to signals from load sensors |
-
2012
- 2012-03-27 KR KR1020120030892A patent/KR20120110047A/en not_active Application Discontinuation
- 2012-03-27 US US14/008,531 patent/US20140007680A1/en not_active Abandoned
- 2012-03-27 WO PCT/KR2012/002212 patent/WO2012134141A2/en active Application Filing
- 2012-03-27 CN CN201280014592.1A patent/CN103459700B/en not_active Expired - Fee Related
- 2012-03-27 EP EP12764694.1A patent/EP2692928A4/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4038178A1 (en) * | 1990-11-30 | 1992-06-04 | Telefunken Electronic Gmbh | Measuring imbalance in loaded drum - during spinning of washing machine, by measuring relative imbalance and then inertia of drum |
| CN1676734A (en) * | 2002-05-17 | 2005-10-05 | Lg电子株式会社 | Dehydration control method of drum washing machine |
| CN1767352A (en) * | 2004-10-26 | 2006-05-03 | 三星电子株式会社 | Be used for controlling the apparatus and method of the motor of washing machine |
| WO2007134926A1 (en) * | 2006-05-18 | 2007-11-29 | BSH Bosch und Siemens Hausgeräte GmbH | Method for measuring and reducing an imbalance in a machine for washing and/or drying laundry |
| CN101736553A (en) * | 2009-12-04 | 2010-06-16 | 合肥荣事达三洋电器股份有限公司 | Method for detecting dehydration imbalance of inclined drum washing machine |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106232889A (en) * | 2014-02-19 | 2016-12-14 | Lg电子株式会社 | Washing methods |
| CN106232889B (en) * | 2014-02-19 | 2019-11-05 | Lg电子株式会社 | Washing methods |
| US11840791B2 (en) | 2014-02-19 | 2023-12-12 | Lg Electronics Inc. | Washing method |
Also Published As
| Publication number | Publication date |
|---|---|
| US20140007680A1 (en) | 2014-01-09 |
| KR20120110047A (en) | 2012-10-09 |
| EP2692928A4 (en) | 2014-12-03 |
| CN103459700B (en) | 2016-10-19 |
| WO2012134141A2 (en) | 2012-10-04 |
| EP2692928A2 (en) | 2014-02-05 |
| WO2012134141A3 (en) | 2013-01-03 |
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