CN1361322A - Drive mechanism of fully automatic washing machine - Google Patents
Drive mechanism of fully automatic washing machine Download PDFInfo
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- CN1361322A CN1361322A CN 00127996 CN00127996A CN1361322A CN 1361322 A CN1361322 A CN 1361322A CN 00127996 CN00127996 CN 00127996 CN 00127996 A CN00127996 A CN 00127996A CN 1361322 A CN1361322 A CN 1361322A
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- washing machine
- drive unit
- automatic washing
- electromagnetic clutch
- motor
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Abstract
The drive mechanism of fully automatic washing machine includes motor, controller and electromagnetic clutch. The motor is a permanent magnetic brushless DC motor and is set concentrically with the wavy wheel and inner tub of the washing machine via the said electromagnetic clutch. The controller is used to control the permanent magnetic brushless DC motor, the electromagnetic clutch and the working program of the washing machine. Without belt wheel and reducing box, the washing machine is simple in structure and easy to be installed, and the motor is used to drive the washing machine directly in stepless speed regulation and the washing process is intelligently controlled to work at very low noise.
Description
The present invention relates to the drive unit of automatic washing machine, specifically a kind of drive unit that adopts permanent-magnet brushless DC electric machine directly to drive variable-frequency washing machine.
The drive unit of traditional automatic washing machine (as shown in Figure 1), drive motors 5 adopts common XD series AC induction motor, because asynchronous machine can't directly drive when wash load is arranged, so need be slowed down by the reducing gear of machinery and speed change, reducing gear comprises belt pulley 4 and gear-box 3.Because washing machine is in when washing, the rotating speed of requirement is 900～1 and require rotating speed during dehydration about 200rpm, and 000rpm so this mechanical reduction gear is generally the multi-stage gear case, and needs clutch engagement.This gearbox is owing to be that pure machinery constitutes, complex structure simultaneously because the needs that slow down, makes that the axle of the impeller of drive motors and washing machine or cylinder can't be concentric, make the balance of cylindric washer be difficult to guarantee, this can introduce bigger noise and vibration when high speed dewatering, even causes toppling of washing machine, so in roller washing machine, need symmetric position placement one and the cement block that motor has identical weight,, increased the weight of washing machine to guarantee the cylindric washer balance at the placement asynchronous machine.
The present invention seeks to overcome the deficiencies in the prior art, a kind of drive unit of automatic washing machine of direct driving is provided.
Another object of the present invention is the drive unit that a kind of automatic washing machine of variable-frequency stepless speed-regulating will be provided.
A further object of the present invention is the drive unit that a kind of low noise automatic washing machine will be provided.
The object of the present invention is achieved like this: the drive unit of automatic washing machine, comprise motor, controller and electromagnetic clutch, and described motor adopts permanent-magnet brushless DC electric machine; Described controller is used to control the working procedure of described permanent-magnet brushless DC electric machine, electromagnetic clutch and washing machine; Described permanent-magnet brushless DC electric machine is by impeller and the interior bucket concentric setting of described electromagnetic clutch with washing machine.
Described controller comprises APFC, host computer, slave computer and Electric Machine Control circuit.
Described slave computer adopts totally digital circuit control, by serial line interface and described upper machine communication.
Described active power factor corrector adopts PFC and Coolset circuit; Described host computer and slave computer adopt embedded scm; Described Electric Machine Control circuit adopts the three-phase inversion bridge circuit.
Described electromagnetic clutch comprises upper and lower two coils, and described two coils link to each other with impeller with the interior bucket of washing machine respectively; Each coil is electrically connected with described controller by slip ring.
Described motor adopts outer-rotor structure.
After the present invention has adopted permanent-magnet brushless DC electric machine, can abandon belt pulley and gear reduction box fully, make the simple in structure of washing machine, install easily, this compares with conventional washer and has the following advantages:
One, realized motor direct driven washing machine work.
Two, after the employing direct driving technologies, can realize the stepless speed regulation of washing machine speed, break away from the three-step timing of conventional washer, realize Based Intelligent Control easily to washing process, as fuzzy control, angle control and Position Control, the form of conversion washing machine washing current obtains best clean result to reach with minimum water.These can't realize in conventional washer at all.
Three just because of adopt the motor direct-drive mode, and the axle of motor and impeller or interior bucket can guarantee the balance when high speed dewatering like this on same axis, lower the noise when dewatering.Reduced because the noise that gear mechanism brings has been realized real low noise design.
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the prior art constructions schematic diagram.
Fig. 2 is a structural representation of the present invention.
Fig. 3 is the circuit diagram of controller of the present invention.
With reference to Fig. 2, the drive unit of automatic washing machine comprises motor 1, controller and electromagnetic clutch 8, and described motor 1 adopts permanent-magnet brushless DC electric machine; Described controller is used to control the working procedure of described permanent-magnet brushless DC electric machine, electromagnetic clutch and washing machine; Described permanent-magnet brushless DC electric machine is by impeller 1 and the interior bucket 2 concentric settings of described electromagnetic clutch with washing machine.
Described electromagnetic clutch comprises upper and lower two coils, and last coil 7 links to each other with the interior bucket 2 of washing machine, and lower coil 9 links to each other with the impeller 1 of washing machine; Upper and lower coil is electrically connected with described controller by slip ring 6,10 respectively.When washing machine was operated in the washing state, the interior bucket 2 of washing machine played the effect of washtub, at this moment, the electromagnetic clutch outage, upper and lower coil 7,9 breaks away from, and motor 5 drives impeller 1 running, carries out washing procedure; When washing machine was in the dehydration duty, in fact the interior bucket of washing machine played a part dehydration barrel, the electromagnetic clutch energising, and upper and lower coil 7,9 adhesives, coil 7 is gone up in lower coil 9 drives and dehydration barrel 2 is rotated together, carries out dehydration procedure.
Washing machine is when washing, need low-speed big, generally be that when starting is greater than 15Nm, rotating speed is at 0～200rpm, if the employing direct driving technologies must become low speed, high pulling torque permanent-magnet brushless DC electric machine to design of electrical motor, therefore select the disclosed three-phase permanent brshless DC motor of Chinese patent ZL982440588 for use, and the employing outer-rotor structure, adopted high performance NdFeB as permanent-magnet material simultaneously; And washing machine is when dehydration, Washing Machine Factory proposes rotating speed and is greater than 850rpm, to satisfy clothes is taken off dried requirement, and moment of torsion is littler relatively, so directly driving requires the speed ratio of motor very big, greater than about 100, corresponding " leakage field loop " arranged when design of electrical motor, be convenient to carry out weak magnetic control system.
With reference to Fig. 3, controller comprises APFC, host computer, slave computer and Electric Machine Control circuit.Described active power factor corrector adopts PFC and Coolset circuit; Described host computer and slave computer adopt embedded scm, host computer has adopted the 8bit MCU C501 of Siemens Company, the main button of being responsible for is deciphered input, water level detecting, detection of electrical leakage and balance detection, and the synthetic power function of these input signals, real-time, the highly reliable fast communications protocol of oneself working out according to us transmits to slave computer; Slave computer adopts the high reliability single-chip microcomputer C504 of Siemens Company in order to Vehicle Electronic Control equally.The maximum characteristics of C504 are the CCU unit with the output of 6 road three-phase PWMs.Be fit to very much the control of permanent-magnet brushless DC electric machine, the grid of the IGBT of three phase inverter bridge major loop is directly controlled in the output of its signal, and three phase inverter bridge is carried out direct digital control.Electric Machine Control three-phase inversion bridge circuit adopts the high-performance IGBT SKP06N60 of Siemens Company to constitute, because SKP06N60 is the 6th a generation IGBT product of Siemens Company, conducting resistance is very little, and this temperature rise △ T that has guaranteed controller is controlled in the very little scope.
Adopted the embedded microprocessor chip C504 of Siemens, this chip of Siemens extensively adopts in German automobiles industry, and it is with high reliability and anti-interference and well-known; Adopt the SPWM modulation technique according to the permanent-magnet brushless DC electric machine characteristics, write the program code of 8K, be solidificated in the middle of the computer chip.
Claims (6)
1, the drive unit of automatic washing machine comprises motor (5), controller and electromagnetic clutch (8), it is characterized in that described motor adopts permanent-magnet brushless DC electric machine; Described controller is used to control the working procedure of described permanent-magnet brushless DC electric machine, electromagnetic clutch and washing machine; Described permanent-magnet brushless DC electric machine is by impeller (1) and (2) the concentric setting of interior bucket with washing machine of described electromagnetic clutch.
2, the drive unit of automatic washing machine as claimed in claim 1 is characterized in that described controller comprises APFC, host computer, slave computer and Electric Machine Control circuit.
3, the drive unit of automatic washing machine as claimed in claim 2 is characterized in that described slave computer adopts totally digital circuit control, by serial line interface and described upper machine communication.
4, the drive unit of automatic washing machine as claimed in claim 3 is characterized in that described active power factor corrector adopts PFC and Coolset circuit; Described host computer and slave computer adopt embedded scm; Described Electric Machine Control circuit adopts the three-phase inversion bridge circuit.
5, as the drive unit of any one described automatic washing machine of claim 1～4, it is characterized in that described electromagnetic clutch comprises upper and lower two coils (7,9), described two coils link to each other with impeller (1) with the interior bucket (2) of washing machine respectively; Each coil is electrically connected with described controller by slip ring (6,10).
6, the drive unit of automatic washing machine as claimed in claim 5 is characterized in that described motor adopts outer-rotor structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00127996 CN1361322A (en) | 2000-12-26 | 2000-12-26 | Drive mechanism of fully automatic washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00127996 CN1361322A (en) | 2000-12-26 | 2000-12-26 | Drive mechanism of fully automatic washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1361322A true CN1361322A (en) | 2002-07-31 |
Family
ID=4592901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00127996 Pending CN1361322A (en) | 2000-12-26 | 2000-12-26 | Drive mechanism of fully automatic washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1361322A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535104A (en) * | 2012-02-15 | 2012-07-04 | 金碧辉 | Washing machine with simple clutch |
| CN102535105A (en) * | 2012-02-15 | 2012-07-04 | 金碧辉 | Clutch component of washing machine |
| CN103580408A (en) * | 2013-11-08 | 2014-02-12 | 袁勇 | Direct drive motor, washing machine double power drive assembly and washing machine thereof |
| CN105133251A (en) * | 2015-08-07 | 2015-12-09 | 谢长青 | Washing machine transmission device |
| CN106087355A (en) * | 2016-08-24 | 2016-11-09 | 深圳出入境检验检疫局工业品检测技术中心 | A kind of Household drier for clothes |
-
2000
- 2000-12-26 CN CN 00127996 patent/CN1361322A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535104A (en) * | 2012-02-15 | 2012-07-04 | 金碧辉 | Washing machine with simple clutch |
| CN102535105A (en) * | 2012-02-15 | 2012-07-04 | 金碧辉 | Clutch component of washing machine |
| CN102535104B (en) * | 2012-02-15 | 2013-07-31 | 金碧辉 | Washing machine with simple clutch |
| CN102535105B (en) * | 2012-02-15 | 2013-07-31 | 金碧辉 | Clutch component of washing machine |
| CN103580408A (en) * | 2013-11-08 | 2014-02-12 | 袁勇 | Direct drive motor, washing machine double power drive assembly and washing machine thereof |
| CN105133251A (en) * | 2015-08-07 | 2015-12-09 | 谢长青 | Washing machine transmission device |
| CN106087355A (en) * | 2016-08-24 | 2016-11-09 | 深圳出入境检验检疫局工业品检测技术中心 | A kind of Household drier for clothes |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |