CN100336965C - Driving device of washing machine - Google Patents
Driving device of washing machine Download PDFInfo
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- CN100336965C CN100336965C CNB021211493A CN02121149A CN100336965C CN 100336965 C CN100336965 C CN 100336965C CN B021211493 A CNB021211493 A CN B021211493A CN 02121149 A CN02121149 A CN 02121149A CN 100336965 C CN100336965 C CN 100336965C
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- washing machine
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Abstract
The present invention relates to a drive device of a full automatic washing machine, which eliminates a gap between a motor rotor and a dewatering shaft by connecting the motor rotor to the dewatering shaft. The drive device of the washing machine of the present invention comprises the following structure that a hollow dewatering shaft is combined with an outer shell rotatablely; a watering shaft is combined with the inner par of the hollow dewatering shaft rotatablely, and the motor rotor is fixed on the outer shell; the motor rotor is combined with the hollow dewatering shaft rotatablely; a coupling component is combined with the watering shaft in a lifting mode, and transfers the rotating force of the motor rotor to the hollow dewatering shaft and the washing shaft in a selective mode; an electromagnetic coil is fixed on the bottom of the lower outer shell and is used for starting the coupling component; an elastic component is arranged between the coupling component and the electromagnetic coil and supports the coupling component elastically. Through the structure, the present invention has the following effects that through the emergency braking and the fast and accurate execution of the dewatering shaft, the reliability of products is improved, and the prevent invention also prevents the abrasion phenomenon of the components.
Description
Technical field
The present invention relates to a kind of drive unit of automatic washing machine.Further say, then relate to a kind ofly have by rotor is attached on the dehydrating shaft, eliminating the slit that exists between rotor and the dehydrating shaft, thereby make the drive unit of the automatic washing machine that the brake hard of dehydrating shaft correctly carries out rapidly.
Background technology
General washing machine of the prior art is the rotation of carrying out positive and negative direction by the agitator that is arranged on the sink bottom, forms slurry stream, thereby carries out washing.Possessing for the washing machine that adopts above-mentioned agitator has following structure: the driving shaft that is used to drive above-mentioned agitator; When carrying out the dehydration stroke, be used to rotate the driving shaft of sink; Clutch apparatus drives above-mentioned two driving shafts selectively respectively.
Above-mentioned clutch apparatus is when carrying out washing stroke, and the revolving force that drive motors is produced only sends agitator to; When carrying out the dehydration stroke, the revolving force of drive motors generation is sent simultaneously to the drive unit of agitator and sink.Said structure is indispensable structure for the washing machine in the prior art.But, in the structure of prior art, adopt the driving shaft that sends the rotary power of drive motors to agitator selectively or send sink to by clutch apparatus to bring a lot of problems.Because the internal structure of above-mentioned clutch apparatus is very complicated, part count is increased, cause the assembling procedure complexity, thus not only improved the manufacturing cost of product, and maintenance management has been brought difficulty.
In order to address the above problem, the flat 11-347289 of Japanese Patent Application Laid-Open number open: adopt the directly mode of washing of rotation sink, replace the washing machine that uses clutch apparatus.
Fig. 1 is the simple profile that adopts the washing machine structure of above-mentioned mode of washing.
As shown in Figure 1, adopt the washing machine of above-mentioned mode of washing to include following structure: water storage casing 1, water jacket 2, hollow dehydrating shaft 4, sink 5, wash shaft 6, agitator 7, electric machine assembly 10 and clutch components 11.Above-mentioned water storage casing 1 is arranged on the inner lower of external box of microvave; Above-mentioned water jacket 2 is fixedly installed on the above-mentioned water storage casing 1; Above-mentioned hollow dehydrating shaft 4 is combined on the above-mentioned water storage casing 1, can be rotated by bearing 3; Above-mentioned sink 5 secure bond are on the top of above-mentioned hollow dehydrating shaft 4; Above-mentioned wash shaft 6 rotatably is combined in the inside of above-mentioned hollow dehydrating shaft 4; Above-mentioned agitator 7 is fixing integratedly with the upper end of above-mentioned wash shaft 6.Above-mentioned electric machine assembly 10 is made of rotor 8 and motor stator 9, and above-mentioned rotor 8 secure bond are in the bottom of above-mentioned wash shaft 6, and above-mentioned motor stator 9 is fixed on the above-mentioned water storage casing 1; Above-mentioned clutch components 11 is arranged on the bottom of above-mentioned dehydrating shaft 4, and above-mentioned clutch components 11 sends the power that above-mentioned electric machine assembly 10 produces to above-mentioned dehydrating shaft 4 and wash shaft 6 selectively.
Above-mentioned clutch components 11 is made of movable body 12 and solenoid 13.In order to make above-mentioned movable body 12 carry out lifting along the bottom above-below direction of above-mentioned dehydrating shaft 4, above-mentioned movable body 12 combines with miscellaneous part by so concavo-convex engaging structures such as zigzag projectioies; Above-mentioned solenoid 13 drives above-mentioned movable body 12, above-mentioned solenoid 13 is made of electronic coil 16 and movable core 17, above-mentioned electronic coil 16 is made of the iron core 14 and the coil 15 that are fixed on the above-mentioned water storage casing 1, and above-mentioned movable core 17 is arranged on the above-mentioned movable body 12.
The above and below of above-mentioned movable body 12 is formed with engaging tooth 18 and engaging tooth 19 respectively, is formed with engaging tooth 20 on the position relative with above-mentioned engaging tooth 18, and the position relative with above-mentioned engaging tooth 19 is formed with engaging tooth 21.
Below, the process of the drive unit of prior art washing machine with said structure being carried out washing mode is elaborated.
At first, apply power supply to above-mentioned solenoid 13, shown on Fig. 1 left side, effect by above-mentioned electronic coil 16 and movable core 17, upwards side direction spurs above-mentioned movable body 12, make of engaging tooth 21 disengagings of the downside engaging tooth 19 of above-mentioned movable body 12, can make upside engaging tooth 20 engagements of the upside engaging tooth 18 and the above-mentioned water storage casing 1 of above-mentioned movable body 12 simultaneously from above-mentioned rotor 8.
Meanwhile, electro permanent magnetic effect by the above-mentioned electric machine assembly 10 that constitutes by above-mentioned rotor 8 and motor stator 9, above-mentioned rotor 8 is rotated, rotation by above-mentioned rotor 8, above-mentioned wash shaft 6 is rotated individually, the above-mentioned agitator 7 that is fixed on above-mentioned wash shaft 6 upper ends is rotated, carries out washing stroke washings.
At this moment, constantly,, can wash washings by the driving that above-mentioned agitator 7 is rotated repeatedly with the direction of rotation positive and negative direction conversion in turn in addition of above-mentioned rotor 8.
When carrying out dehydration mode, cut off the power supply that applies to above-mentioned solenoid 13, shown on Fig. 1 left side,, make above-mentioned movable body 12 descend along above-mentioned dehydrating shaft 4 because above-mentioned movable body 12 can not obtain power upwards.So, the downside engaging tooth 19 of above-mentioned movable body 12 and 21 engagements of the engaging tooth of above-mentioned rotor 8, the upside engaging tooth 18 of above-mentioned movable body 12 and the upside engaging tooth 20 of above-mentioned water storage casing 1 separate simultaneously.
So the power of above-mentioned electric machine assembly 10 sends above-mentioned wash shaft 6 and dehydrating shaft 4 to simultaneously by above-mentioned rotor 8, can make the rotation at high speed simultaneously of above-mentioned agitator 7 and sink 5 carry out dehydration mode.
But the drive unit with prior art washing machine of said structure has following shortcoming:
Because above-mentioned rotor 8 is combined on the above-mentioned wash shaft 6, need strengthen the intensity of above-mentioned wash shaft 6 fully, so cause the diameter of above-mentioned wash shaft 6 to become big; If the diameter of above-mentioned wash shaft 6 is diminished, can cause the phenomenon of shaft distortion.
In addition, when in carrying out dehydration mode, needing brake hard, the power of above-mentioned electric machine assembly 10 is sent to can produce moment in the process of above-mentioned dehydrating shaft 4 and increase the phenomenon of impacting.So, the position that above-mentioned dehydrating shaft 4 and movable body 12 are connected, just concavo-convex binding site such as zigzag projection can produce the phenomenon of wearing and tearing, brings fatal influence for the reliability of washing machine.
In addition, in order to solve above-mentioned phenomenon, prior art prevents the generation of brake hard by the perception means of extra setting.But, in these cases, not only improved the manufacturing cost of product, but also can cause a lot of problems.
Summary of the invention
In order to solve the problem that prior art exists, the invention provides the drive unit of washing machine: by rotor is attached on the dehydrating shaft with following effect, eliminate the slit that exists between rotor and the dehydrating shaft, the brake hard of dehydrating shaft is correctly carried out rapidly.
Another object of the present invention is: the zigzag projection binding site that prevents dehydrating shaft is worn, and not only can improve the reliability of product, but also can prolong the service life of washing machine.
Another object of the present invention is: by having omitted the perception means of extra setting, can reduce the manufacturing cost of product.
Another object of the present invention is: need not increase the diameter of wash shaft for the intensity that strengthens wash shaft, also can prevent the phenomenon of wash shaft distortion even the diameter of wash shaft diminished.
In order to reach purpose of the present invention, the drive unit of washing machine of the present invention includes following structure: shell, hollow dehydrating shaft, wash shaft, motor stator, rotor, coupling unit and solenoid.Above-mentioned shell is arranged on the inner lower of external box of microvave; Above-mentioned hollow dehydrating shaft rotatably is combined on the above-mentioned shell, is fixed with sink on the above-mentioned hollow dehydrating shaft; Above-mentioned wash shaft rotatably is combined in the inside of above-mentioned hollow dehydrating shaft, and the upper end of above-mentioned wash shaft is fixed with agitator; Above-mentioned motor stator is fixed on the above-mentioned shell; Above-mentioned rotor rotatably is combined on the above-mentioned hollow dehydrating shaft; Above-mentioned coupling unit liftably is combined on the above-mentioned wash shaft, and above-mentioned coupling unit sends the revolving force of above-mentioned rotor to above-mentioned hollow dehydrating shaft and wash shaft selectively; Above-mentioned solenoid is fixed on the bottom of lower case, and above-mentioned solenoid is used to start above-mentioned coupling unit; Above-mentioned compression helical spring flexiblely supports above-mentioned coupling unit between above-mentioned coupling unit and solenoid.
In addition, above-mentioned coupling unit is combined in respectively on above-mentioned rotor, hollow dehydrating shaft and the wash shaft selectively with concavo-convex integrated structure.
In addition, compression helical spring flexiblely supports above-mentioned coupling unit between above-mentioned coupling unit and solenoid.
The drive unit of washing machine provided by the invention can bring following effect: by rotor directly is attached on the dehydrating shaft, eliminate the slit that exists between rotor and the dehydrating shaft, the brake hard of dehydrating shaft is correctly carried out rapidly; The zigzag projection binding site that can the prevent dehydrating shaft phenomenon that is worn has improved the reliability of product; Omit extra perception means, reduced the manufacturing cost of product.
Description of drawings
Fig. 1 is the profile of the drive unit of prior art washing machine;
Fig. 2 and Fig. 3 are the profiles of the drive unit of washing machine of the present invention:
Profile when Fig. 2 is washing mode;
Profile when Fig. 3 is dehydration mode.
The critical piece Reference numeral
30,31,32: shell 33,34,36,39: bearing
35: hollow dehydrating shaft 37: wash shaft
38: motor stator 40: rotor
41: carriage 42: coupling unit
43: solenoid 44: compression helical spring
The specific embodiment
With reference to the accompanying drawings, the drive unit to washing machine of the present invention is elaborated.
Fig. 2 and Fig. 3 are the profiles of the drive unit of washing machine of the present invention, the profile when Fig. 2 is washing mode, the profile when Fig. 3 is dehydration mode.
As shown in Figures 2 and 3, the drive unit of washing machine of the present invention includes following structure: upper case 30, middle housing 31, lower case 32, hollow dehydrating shaft 35, wash shaft 37, motor stator 38, rotor 40, carriage 41, coupling unit 42 and solenoid 43.Above-mentioned upper case 30, middle housing 31 and lower case 32 are arranged on the inner lower of external box of microvave; Above-mentioned hollow dehydrating shaft 35 is combined on above-mentioned upper case 30 and the middle housing 31, is rotated by upper bearing 33 and lower bearing 34; Above-mentioned wash shaft 37 rotatably is combined in the inside of above-mentioned hollow dehydrating shaft 35, is supported on the lower case 32 by bearing 36; Above-mentioned motor stator 38 is fixed on the above-mentioned middle housing 31; Above-mentioned rotor 40 is combined in the pars intermedia of above-mentioned hollow dehydrating shaft 35, is rotated by bearing 39; Above-mentioned carriage 41 is fixed on the above-mentioned rotor 40 integratedly; Above-mentioned coupling unit 42 liftably is combined on the above-mentioned hollow dehydrating shaft 35, and above-mentioned coupling unit 42 sends the revolving force of above-mentioned rotor 40 to above-mentioned hollow dehydrating shaft 35 or wash shaft 37 selectively; Above-mentioned solenoid 43 is fixed on the bottom of lower case 32.
Compression helical spring 44 between above-mentioned coupling unit 42 and solenoid 43, the above-mentioned coupling unit 42 of resiliency supported.
The elasticity of above-mentioned compression helical spring 44 preferably can reach the degree that above-mentioned coupling unit 42 is upwards promoted lightly.When above-mentioned coupling unit 42 is rotated, can not produce because of of the mistake startup of above-mentioned coupling unit 42 with the friction initiation of solenoid 13.
Above-mentioned coupling unit 42 is combined in respectively on above-mentioned carriage 41, hollow dehydrating shaft 35 and the wash shaft 37 with concavo-convex integrated structure a, b and c.
Identical with the washing machine of prior art, be combined with sink on the above-mentioned hollow dehydrating shaft 35, be combined with agitator on the above-mentioned wash shaft 37.This specification has omitted the explanation for said structure.
Below, a series of processes of the drive unit of washing machine of the present invention with said structure being carried out washing stroke are elaborated.
At first, in washing mode, drop into a spot of washings and washing agent, according to suitable water level supplying washing water to the inside of sink.
At this moment, apply power supply, produce suction, make above-mentioned coupling unit 42 overcome above-mentioned compression helical spring 44 and descend, above-mentioned coupling unit 42 is engaged on the concavo-convex integrated structure a and c at 2 places of above-mentioned carriage 41 and wash shaft 37 to above-mentioned solenoid 43.
That is to say, owing to removing under the state that above-mentioned coupling unit 42 and hollow dehydrating shaft 35 combine, apply power supply to electric machine assembly,, above-mentioned rotor 40 is rotated according to specific direction by the electro permanent magnetic effect of above-mentioned motor stator 38 and rotor 40.At this moment, the revolving force of above-mentioned rotor 40 sends above-mentioned carriage 41, coupling unit 42 and wash shaft 37 to, and the agitator that is fixed on above-mentioned wash shaft 37 upper ends is rotated according to the direction of rotation of above-mentioned rotor 40.
Because when opposite direction was rotated, above-mentioned hollow dehydrating shaft 37 was not rotated at above-mentioned rotor 40, above-mentioned wash shaft 35 is carried out reciprocal rotation individually, so can carry out washing to washings by working repeatedly of agitator.
The rinsing pattern of washings also is to carry out rinse cycle by the effect identical with washing mode.
Then, as shown in Figure 3, the signal of input dehydration mode, at this moment, the power supply that applies to above-mentioned solenoid 43 is cut off, and makes above-mentioned coupling unit 42 obtain the restoring force of above-mentioned compression helical spring 44, and above-mentioned coupling unit 42 is risen along above-mentioned wash shaft 37.
At this moment, above-mentioned coupling unit 42 is engaged on concavo-convex integrated structure a, the b and c at 3 places of above-mentioned carriage 41, hollow dehydrating shaft 35 and wash shaft 37.So, the revolving force of above-mentioned rotor 40 sends above-mentioned hollow dehydrating shaft 35 to by above-mentioned carriage 41 and coupling unit 42, send above-mentioned wash shaft 37 simultaneously to, make the sink and the rotation of agitator one superhigh speed that are fixed on the above-mentioned hollow dehydrating shaft 35, dewater by the moisture centrifugal action of washings.
In addition, in an embodiment of the present invention, though only the situation that is applicable to automatic washing machine is illustrated, be not limited to above-mentioned washing machine, also be applicable to the washing machine that adopts direct drive mode rotation sink and agitator that any form of flowability can be provided to washings.
As mentioned above, basic fundamental thought of the present invention is by rotor is attached on the dehydrating shaft, to eliminate the slit that exists between rotor and the dehydrating shaft, the brake hard of dehydrating shaft is correctly carried out rapidly.The present invention is not limited to the embodiment that demonstrates in the accompanying drawing, in technological thought of the present invention and claim protection domain a lot of distortion can be arranged.
The drive unit of washing machine provided by the invention can bring following effect.
The drive unit of washing machine of the present invention includes following structure: shell, hollow dehydrating shaft, wash shaft, Motor stator, rotor, coupling unit, solenoid and compression helical spring. Above-mentioned shell setting The inner lower of casing externally; Above-mentioned hollow dehydrating shaft rotatably is combined on the above-mentioned shell, and is above-mentioned Be fixed with sink on the hollow dehydrating shaft; Above-mentioned wash shaft rotatably is combined in above-mentioned hollow dehydrating shaft Inside, the upper end of above-mentioned wash shaft is fixed with agitator; The said motor stator is fixed on the above-mentioned shell; The said motor rotor rotatably is combined on the above-mentioned hollow dehydrating shaft; Above-mentioned coupling unit is liftably tied Be combined on the above-mentioned wash shaft, above-mentioned coupling unit sends the revolving force of said motor rotor to selectively Above-mentioned hollow dehydrating shaft and wash shaft; Above-mentioned solenoid is fixed on the bottom of lower case, above-mentioned electromagnetism Coil is used for starting above-mentioned coupling unit; Above-mentioned compression helical spring is between above-mentioned coupling unit and electromagnetic wire Between the circle, the above-mentioned coupling unit of resiliency supported. Pass through said structure: eliminated rotor and dehydrating shaft Between the slit that exists, the brake hard of dehydrating shaft is correctly carried out rapidly; Can prevent dehydration The zigzag of the axle projection binding site phenomenon that is worn has improved the reliability of product; Omitted extra The structure of perception means has reduced the manufacturing cost of product.
Claims (2)
1, a kind of drive unit of washing machine is characterized in that:
Shell is arranged on the inner lower of external box of microvave;
The hollow dehydrating shaft rotatably is combined on the above-mentioned shell, is fixed with sink on the above-mentioned hollow dehydrating shaft;
Wash shaft rotatably is combined in the inside of above-mentioned hollow dehydrating shaft, and the upper end of above-mentioned wash shaft is fixed with agitator;
Motor stator is fixed on the above-mentioned shell;
Rotor can be combined on the above-mentioned hollow dehydrating shaft rotatably;
Coupling unit can be combined on the above-mentioned wash shaft up and down, and above-mentioned coupling unit sends the revolving force of above-mentioned rotor to above-mentioned hollow dehydrating shaft and wash shaft selectively;
Solenoid is fixed on the bottom of lower case, and above-mentioned solenoid is used to start above-mentioned coupling unit;
Compression helical spring flexiblely supports above-mentioned coupling unit between above-mentioned coupling unit and solenoid.
2, the drive unit of washing machine according to claim 1 is characterized in that:
Above-mentioned coupling unit is combined in respectively on above-mentioned rotor, hollow dehydrating shaft and the wash shaft selectively with concavo-convex integrated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021211493A CN100336965C (en) | 2002-06-11 | 2002-06-11 | Driving device of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021211493A CN100336965C (en) | 2002-06-11 | 2002-06-11 | Driving device of washing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1464118A CN1464118A (en) | 2003-12-31 |
| CN100336965C true CN100336965C (en) | 2007-09-12 |
Family
ID=29742812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021211493A Expired - Fee Related CN100336965C (en) | 2002-06-11 | 2002-06-11 | Driving device of washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100336965C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102409513B (en) * | 2011-09-24 | 2013-08-07 | 宁波普尔机电制造有限公司 | Integrated decelerating clutch for washing machine motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245290A (en) * | 1975-10-08 | 1977-04-09 | Hitachi Ltd | Integrated circuit of semiconductor and method for its fabrication |
| JPS6085793A (en) * | 1983-10-17 | 1985-05-15 | 松下電器産業株式会社 | Driver of dehydration washer |
| CN1147580A (en) * | 1995-06-30 | 1997-04-16 | 三星电子株式会社 | Gear of washing machine |
| JPH11276777A (en) * | 1998-03-31 | 1999-10-12 | Toshiba Corp | Washing machine used also as dry spinning machine |
| CN1232097A (en) * | 1998-04-10 | 1999-10-20 | 松下电器产业株式会社 | Washing machine |
| JP2000237494A (en) * | 1999-02-24 | 2000-09-05 | Toshiba Corp | Washing machine also used for dehydration |
-
2002
- 2002-06-11 CN CNB021211493A patent/CN100336965C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5245290A (en) * | 1975-10-08 | 1977-04-09 | Hitachi Ltd | Integrated circuit of semiconductor and method for its fabrication |
| JPS6085793A (en) * | 1983-10-17 | 1985-05-15 | 松下電器産業株式会社 | Driver of dehydration washer |
| CN1147580A (en) * | 1995-06-30 | 1997-04-16 | 三星电子株式会社 | Gear of washing machine |
| JPH11276777A (en) * | 1998-03-31 | 1999-10-12 | Toshiba Corp | Washing machine used also as dry spinning machine |
| CN1232097A (en) * | 1998-04-10 | 1999-10-20 | 松下电器产业株式会社 | Washing machine |
| JP2000237494A (en) * | 1999-02-24 | 2000-09-05 | Toshiba Corp | Washing machine also used for dehydration |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1464118A (en) | 2003-12-31 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070912 Termination date: 20110611 |