CN1684354A - Hull sensor position deviation guarantee method for motor direct driving washing machine using brushless DC motor - Google Patents
Hull sensor position deviation guarantee method for motor direct driving washing machine using brushless DC motor Download PDFInfo
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- CN1684354A CN1684354A CNA2004100189471A CN200410018947A CN1684354A CN 1684354 A CN1684354 A CN 1684354A CN A2004100189471 A CNA2004100189471 A CN A2004100189471A CN 200410018947 A CN200410018947 A CN 200410018947A CN 1684354 A CN1684354 A CN 1684354A
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- hall element
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- electromotive force
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Abstract
This invention discloses a method for ensuring the position deviation of a Hall sensor of a motor direct-drive washing machine applying a brush less DC motor characterizing that a microcomputer acknowledges the counter-electromotive force generated from rotating the rotor by man and the signal sensed by the Hall sensor to compute the potential sensed angle of the sensor and compute the difference between the sensed angle and the potential sensed angle of the Hall sensor on the primary stand and position, the above mentioned compute value of the sensed angle is considered to be stored as the initially acknowledged value.
Description
Technical field
The invention belongs to the power transmission apparatus of washing machines technical field, particularly relate to the Hall element position deviation ensuring method that adopts the brushless direct-current washing machine, even more detailed is that the Hall element that is fixed on the brushless DC motor stator correctly is not arranged on the reference position of mechanism, also can guarantee the electromotive force of Hall element, make it correctly control the input power supply of motor.
Background technology
The rubbing action of the current that produce when generally, rotary drum washing machine is the emollescence of utilizing washing agent, impeller rotation and impeller are applied to the product that percussion on the washings is removed all contaminations on clothing and the bed clothes.Nearest single container washing and extracting machine of releasing do not have user's operation can wash automatically, overall processes such as rinsing, dehydration yet in the centre.
Barrel roll laundry machine is to put in drum under the state of washing agent and washings and washings, the product that frictional force is washed between the drum of actuating force rotation of motor and the washings is accepted in utilization, has therefore that washings almost not have to damage, washings can not twine mutually, the clean result of hand rubbing.
In addition, the type of drive of single container washing and extracting machine in the past can be divided into: utilize power to transmit and with belt and pulley the rotary power of drive motors is sent on wash shaft or the dehydrating shaft, make the mode of impeller or dehydration barrel rotation; By the speed control of brshless DC motor, washing and when dehydration the hold concurrently mode of dehydration barrel of each personal different speed rotation washing tube.The structure of releasing is recently also utilized brshless DC motor in addition, but the control of power transmission approach is different, and therefore the low speed rotation impeller washs when washing, and high speed rotating impeller and dehydration barrel are dewatered simultaneously when dehydration.
Fig. 1 is the sectional arrangement drawing that the washing machine of diagram standard brshless DC motor (BLDC) is suitable for example, and Fig. 2 is the oblique view of stator in the pictorial image 2.Below, be applicable to example on the barrel roll laundry machine with reference to the brshless DC motor of Fig. 1 and Fig. 2 description standard structure.
As shown in Figure 1, casing (5) inboard is provided with the outer bucket (3) that can store washings, and above-mentioned outer bucket (3) inboard is provided with the drum (9) of putting into washings.
In addition, drum (9) rear is provided with a motor (6) actuating force and is sent to drum axle (12) on the drum (9).
The rear wall central authorities of above-mentioned outer bucket (3) are provided with bearing pedestal (13), and the front/rear side of above-mentioned bearing pedestal inboard is provided with the bearing (11) that supports drum axle (12) separately.
In addition, above-mentioned drum axle (12) rearward end is combined with screw and said stator (7) constitutes the rotor (8) of direct drive-type motor (6) together.
Therefore, above-mentioned drum (9) directly is connected and accepts the rotation of rotor revolving force when rotor (8) is gone up motor-driven.
In addition, possesses Hall element (15) between the appointment winding lattice in said stator (7) the winding lattice (710a).
Above-mentioned casing (5) the place ahead is provided with door (1), and door (1) and outer barrel (3) are provided with sealing ring (2) between (Tub).
In addition, be provided with between the inboard and outer bucket of above-mentioned casing (5) upper side (3) outer peripheral face top support outer bucket (3) hang spring (4), and be provided with the friction damper (10) that outer barrel (3) of generation are shaken when reducing dehydration between the inboard and outer bucket of inboard and outer bucket (3) bottom surfaces of above-mentioned casing (5) bottom surfaces (3) outer peripheral face bottom.
As the direct drive-type barrel roll laundry machine of the standard of above-mentioned formation, along with stator (7) turn-on power, stator (7) forms electromagnet, the inboard permanent magnet of this electromagnet and rotor (8) interacts and makes rotor (8) rotation, the revolving force that is communicated in addition on the drum axle (12) rotates drum (9), washs.
But, the direct drive-type washing machine of above-mentioned use brshless DC motor in the past, Hall element (15) correctly is not arranged on the reference position of mechanism and with the reference position time devious, the electromotive force perception angle of Hall element (15) also has deviation.
Here, electromotive force perception angle (α) is meant instead from electromotive force becomes 0 the initial point input voltage phase angular difference to the initial point of some utmost points of the cognitive rotor of Hall element (15) (8) lining magnet (example: just say the S utmost point when being the Hall element of cognitive S polar form).
For example, when the mechanism of Hall element (15) was provided with position and reference position and differs 0.1mm, the electromotive force perception angle on electromotive force perception angle and the reference position differed 1 degree.
Both, the electromotive force perception angle of Hall element (15) was that mechanism position by stator (7) groove [slot] number, rotor (8) number of poles and Hall element (15) decides.
Therefore, when the mechanism position of Hall element (15) and reference position are devious,, just have deviation between them if the electromotive force perception angle of Hall element (15) compares with Hall element (15) the electromotive force perception angle on the mechanism reference position.
Especially, when directly drive-type drive motors external diameter is big, be directly changed into the electromotive force perception angular deviation of Hall element (15) perception for the mechanism position deviation of Hall element (15) reference position.
As above-mentioned, when the position of Hall element (15) and mechanism reference position are devious, phenomenons such as the motor rotary speed is inaccurate, noise big, motor temperature rising just occur when control washing machine and similar load, thereby can not control motor effectively.
Summary of the invention
The present invention is in order to address the above problem invention, its purpose is to provide a kind of Hall element position deviation ensuring method that adopts the motor direct-drive formula washing machine of brshless DC motor, even the Hall element that is fixed on the brushless DC motor stator correctly is not arranged on the reference position of mechanism, also can guarantee the electromotive force of Hall element, can correctly control the input power supply of motor.
In order to achieve the above object, the Hall element position deviation ensuring method of motor direct-drive formula washing machine provided by the invention, it is characterized in that the stator that Hall element is housed possessing, rotor around the rotatable stator, the rotor rotation time is accepted the detected signal of Hall element and is controlled in the direct drive-type single container washing and extracting machine of brshless DC motor of microcomputer of stator power, the back electromotive force that produces when comprising and the stage of Hall element perceptual signal by the above-mentioned rotor of the cognitive artificial rotation of microcomputer, microcomputer calculates the stage of the electromotive force perception angle of Hall element according to the back electromotive force of cognition and Hall element perceptual signal, in the stage of difference between electromotive force perception angle that microcomputer calculates and the Hall element electromotive force perception angle on the mechanism reference position, considered that the electromotive force perception angle of above-mentioned stage calculated value saves as the stage formation of initial default value.
Even be fixed on Hall element on the brushless DC motor stator not in mechanism accurately on the reference position, the present invention also can guarantee the accurate electromotive force of Hall element.
Therefore, because the present invention correctly controls the input power supply of motor, the rotary speed of motor, noise, temperature are controlled effectively, thereby can prolong the scourability of electrical machinery life, raising washing machine.
Description of drawings
Fig. 1 is the sectional arrangement drawing that the washing machine of diagram standard brshless DC motor is suitable for example.
Fig. 2 is the oblique view of stator in the pictorial image 2.
Fig. 3 is the significant points front elevation of Fig. 2 of diagram Hall sensor mounting structure.
Explanation for figure major part symbol:
6: motor 7: brshless DC motor
710a: winding lattice 8: rotor
15: Hall element
Embodiment
Embodiment:
Below, with reference to Fig. 1 to Fig. 3 of accompanying drawing example of the present invention is described.The present invention, when possessing on every side rotor (8) of stator (7) that Hall element (15) are housed, rotation said stator (7), above-mentioned rotor (8) rotation, accept the detected signal of Hall element (15) and control in the motor direct-drive formula single container washing and extracting machine of microcomputer (not shown) of stator (7) power supply, on circuit, guarantee the institutional deviation of above-mentioned Hall element (15), even thereby Hall element (15) correctly be not arranged on the input power supply that yet can correctly control motor on the reference position of mechanism.
The detailed process that guarantees the Hall element position deviation is as following.
At first, on production line, utilize artificial rotors (8) such as anchor clamps, and back electromotive force that at this moment produces and the cognition on microcomputer (not shown) of Hall element (15) perceptual signal.
And the drum (9) that rotation at this moment is connected with rotor (8) also can detect back electromotive force.
Then, microcomputer (not shown) calculates the electromotive force perception angle of Hall element (15) according to cognitive before back electromotive force and Hall element (15) perceptual signal.
And, calculate the electromotive force perception angle of Hall element (15) after, the electromotive force perception angle that microcomputer directly calculates poor with between mechanism's reference position electromotive force perception angle of the value imported both Hall element (15).
Then, the electromotive force perception angle that the above-mentioned stage is calculated saves as initial default value.
Therefore, when using product, microcomputer is according to the input power phase angle of above-mentioned initial default value control stator (7), and according to these on correct initial point to stator (7) input power supply.
For example, when Hall element (15) is positioned on the accurate reference position of mechanism, the electromotive force perception angle of Hall element (15) forms 105 degree, but because Hall element (15) departs from the accurate reference position of mechanism, the electromotive force perception angle that calculates by back electromotive force and Hall element (15) perceptual signal is 102 when spending, about slow 3 degree in actual input power phase angle, therefore, 108 degree are saved as initial default value in order to guarantee these.
If as above-mentioned setting, it is that 105 output valves when spending are identical that the output valve of motor is positioned at the accurate reference position of mechanism and electromotive force perception angle with Hall element (15).
As above-mentioned, even be fixed on Hall element (15) on brshless DC motor (6) stator (7) not in mechanism accurately on the reference position, the present invention can guarantee the electromotive force of Hall element (15), correctly control the input power supply of motor (6), thereby can control rotary speed, noise and the temperature of motor effectively.
In addition, the present invention is not limited in the above-mentioned example, and the revision and the distortion of multiple different shape can be arranged in the scope that does not break away from the technology of the present invention thought.
Both, above-mentioned example had been that barrel roll laundry machine is an example, but motor control method of the present invention also is suitable on the erect type washing machine of impeller type.
Claims (1)
1, a kind of Hall element position deviation ensuring method that adopts the motor direct-drive formula washing machine of brshless DC motor, it is characterized in that the stator that Hall element is housed possessing, rotor around the rotatable stator, the rotor rotation time is accepted the detected signal of Hall element and is controlled in the direct drive-type single container washing and extracting machine of brshless DC motor of microcomputer of stator power, the back electromotive force that produces when comprising and the stage of Hall element perceptual signal by the cognitive artificial rotor of microcomputer, microcomputer calculates the stage of the electromotive force perception angle of Hall element according to the back electromotive force of cognition and Hall element perceptual signal, in the stage of difference between electromotive force perception angle that microcomputer calculates and the Hall element electromotive force perception angle on the mechanism reference position, considered that the electromotive force perception angle of stage calculated value saves as the stage formation of initial default value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100189471A CN100413203C (en) | 2004-04-12 | 2004-04-12 | Hull sensor position deviation guarantee method for motor direct driving washing machine using brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100189471A CN100413203C (en) | 2004-04-12 | 2004-04-12 | Hull sensor position deviation guarantee method for motor direct driving washing machine using brushless DC motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1684354A true CN1684354A (en) | 2005-10-19 |
| CN100413203C CN100413203C (en) | 2008-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100189471A Expired - Fee Related CN100413203C (en) | 2004-04-12 | 2004-04-12 | Hull sensor position deviation guarantee method for motor direct driving washing machine using brushless DC motor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7423396B2 (en) | 2004-06-11 | 2008-09-09 | International Rectifier Corporation | Hall sensor alignment for BLDC motor |
| CN100426651C (en) * | 2005-11-21 | 2008-10-15 | 台达电子工业股份有限公司 | Control apparatus and method of motor |
| US7521882B2 (en) | 2005-11-04 | 2009-04-21 | Delta Electronics, Inc. | Control device and method of motor |
| CN107834780A (en) * | 2017-11-29 | 2018-03-23 | 陕西航空电气有限责任公司 | A kind of open loop debugging method and apparatus of permanent magnet motor rotor position sensor |
| CN108062113A (en) * | 2017-12-19 | 2018-05-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Adjust the methods, devices and systems of angle |
| CN110535377A (en) * | 2018-05-25 | 2019-12-03 | 茂达电子股份有限公司 | Motor drive circuit and method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102704240B (en) * | 2012-05-18 | 2014-06-11 | 浙江三星机电股份有限公司 | Bipyramid gear clutch driving device of washing machine and control method of bipyramid gear clutch driving device |
| TW201349714A (en) * | 2012-05-30 | 2013-12-01 | Durq Machinery Corp | Method of calibrating mounting position of Hall sensor of brushless direct current motor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4405885A (en) * | 1980-07-23 | 1983-09-20 | Matsushita Electric Industrial Co., Ltd. | Brushless dc motor |
| US4631459A (en) * | 1984-12-25 | 1986-12-23 | Matsushita Electric Industrial Co., Ltd. | Brushless DC motor |
| JPH09271192A (en) * | 1996-03-29 | 1997-10-14 | Sharp Corp | Driving equipment of brushless motor |
| JP4201886B2 (en) * | 1998-08-05 | 2008-12-24 | 日本電産株式会社 | DC brushless motor speed control device |
| GB2345204B (en) * | 1999-04-14 | 2000-11-15 | Penny & Giles Drives Technolog | Motor control |
| CN1361581A (en) * | 2000-12-25 | 2002-07-31 | 哈尔滨工业大学 | Brush-less Dc motor for driving washing machine directly |
| US6831432B2 (en) * | 2001-12-05 | 2004-12-14 | Matsushita Electric Industrial Co., Ltd. | Motor driving device and motor driving method |
-
2004
- 2004-04-12 CN CNB2004100189471A patent/CN100413203C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7423396B2 (en) | 2004-06-11 | 2008-09-09 | International Rectifier Corporation | Hall sensor alignment for BLDC motor |
| US7521882B2 (en) | 2005-11-04 | 2009-04-21 | Delta Electronics, Inc. | Control device and method of motor |
| CN100426651C (en) * | 2005-11-21 | 2008-10-15 | 台达电子工业股份有限公司 | Control apparatus and method of motor |
| CN107834780A (en) * | 2017-11-29 | 2018-03-23 | 陕西航空电气有限责任公司 | A kind of open loop debugging method and apparatus of permanent magnet motor rotor position sensor |
| CN108062113A (en) * | 2017-12-19 | 2018-05-22 | 珠海格力节能环保制冷技术研究中心有限公司 | Adjust the methods, devices and systems of angle |
| CN110535377A (en) * | 2018-05-25 | 2019-12-03 | 茂达电子股份有限公司 | Motor drive circuit and method |
| CN110535377B (en) * | 2018-05-25 | 2021-06-01 | 茂达电子股份有限公司 | Motor driving circuit and method |
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| Publication number | Publication date |
|---|---|
| CN100413203C (en) | 2008-08-20 |
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Granted publication date: 20080820 |