CN100349363C - Structure for preventing motor noise of full-automatic laundry machine - Google Patents
Structure for preventing motor noise of full-automatic laundry machine Download PDFInfo
- Publication number
- CN100349363C CN100349363C CNB021211663A CN02121166A CN100349363C CN 100349363 C CN100349363 C CN 100349363C CN B021211663 A CNB021211663 A CN B021211663A CN 02121166 A CN02121166 A CN 02121166A CN 100349363 C CN100349363 C CN 100349363C
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- stator
- gap
- pin member
- single container
- motor noise
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- Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
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Abstract
The present invention relates to a structure for preventing motor noise of a full-automatic washing machine, which comprises a motor stator and a motor rotor, wherein the motor stator is fixed on the back surface of a water barrel, and the motor rotor is connected with a drum shaft which is connected with a drum in the water barrel. Plug members which are inserted into gaps among slits and fill the gaps are arranged on the outer surface of the stator. The present invention can eliminate crackling noise and the resonant vibration when a motor drives, wherein the crackling noise is generated by the collision of an air flow flowing between a permanent magnet of the rotor and the stator and air staying in the gaps of the slits of the stator so the noise of the washing machine can be effectively reduced.
Description
Technical field
The present invention relates to a kind of roller washing machine, relate in particular to a kind of its anti-noise structure of motor.
Background technology
In general, the drum wash mode is that washing agent and washings are being put under the state of cylinder inside, utilization is subjected to the driving of motor and the cylinder that rotates and the frictional force between the washings and the mode of washing, it does not have any damage to washings basically, and washings can not twine mutually yet, can obtain the clean result of beaing and rubbing.
Below with reference to Fig. 1 to Fig. 4 an example of existing direct-connected roller washing machine is given simple declaration.
Fig. 1 is the longitdinal cross-section diagram of an example of the structure of existing direct-connected roller washing machine, Fig. 2 is the amplification details drawing of the A portion of Fig. 1, be equipped with in the inside of casing 5 can the splendid attire washings bucket 3, be equipped with in the above-mentioned bucket 3 and be used for washings is put into wherein cylinder 9.
And the drum shaft 17 that the actuating force of motor 6 can be conducted to cylinder 9 is housed at the rear of cylinder 9.
In addition, bearing 11 respectively is equipped with in the front and back of drum shaft 17, and the bearing pedestal 15 of spring bearing 11 is equipped with in the rear wall central authorities of bucket 3.
In addition, fixing Support bracket 26 on the rear wall of bucket 3, the stator 7 that constitutes direct-connected motor is arranged on it, and material 19---bolt is connected on the Support bracket 26 by several connections.
Described stator 7 comprise annular framework 70, be wrapped in the coil 72 on the slit 16 in framework 70 outsides and constitute, the inboard of described framework 70 have become one with it, be used for that stator 7 is fixed on first of connecting hole 73 on bucket 3 rear walls and be connected with arch protuberance 71 and highlight.
And the rotor 8 (rotor) that stator 7 (stator) is arranged in the rear end of described drum shaft 17 and constitute direct-connected motor 6 is being connected by set bolt 18.
Thereby directly being connected with rotor 8, described thus cylinder 9 realizes rotation.
On the other hand, door 1 is equipped with in the place ahead of described casing 5, between door 1 and bucket 3 (Tub) sealing gasket 2 (gasket) is housed.
In addition, between the top of the outer surface of the inside top of casing 5 and bucket 3, the pendulum spring 4 (Hanging spring) that supports bucket 3 is housed, the friction damper 10 of the vibrations of bucket 3 when being used for reducing to dewater is housed between the bottom of the outer surface of the bottom inside of casing 5 and bucket 3.
In constituting aforesaid existing direct-connected roller washing machine, thereby form electromagnet by energising on stator 7, rotor 8 it with the interaction of permanent magnet that is installed in rotor 8 inside under rotate, thereby the power that is transmitted on the drum shaft 17 makes cylinder 9 rotations realize washing and dehydration.
But the existing direct-connected roller washing machine of this structure is when motor-driven, because the rotor of above-mentioned motor and the windage between the stator, thereby have the problem that produces noise.
Just, can produce quick flow air stream in the narrow slit between stator 7 and rotor 8 along with the high speed rotating of rotor 8; In contrast, the air in the slit gap of described stator 7 but remains static, so the air of both sides can produce pressure differential.
Thereupon, the air that rests on slit gap 13 can flow to the gap of rotor 8 and stator 7, and thereby quick flow air bumps against the generation plosive in the gap between rotor and stator, if at this moment the frequency of plosive is identical with the eigentone of rotor 8 or stator 7, thus so in addition the sound of can empathizing the original noise that just is difficult to listen had been strengthened again.
When particularly dewatering,, therefore, therefore in the gap of rotor 8 and stator 7, can produce bigger plosive and sonorant being installed in the air stream that can produce between its inboard permanent magnet 12 and the stator 7 at a high speed because the rotary speed of rotor 8 is very fast.
In addition, during motor-driven, the polarity of each slit 16 of stator 7 is conversion fast, so slit meeting generation shake itself, also can produce resonance thus, and noise is strengthened.
Summary of the invention
In order to overcome the big shortcoming of noise that existing washing machine exists, the invention provides a kind of structure of preventing motor noise of single container washing and extracting machine, produce plosive and the phenomenon of therefrom empathize sound with the air of the slit gap that rests on stator owing to conflicting mutually along the permanent magnet of rotor and the space flow air between the stator when it can prevent motor-driven in advance.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of structure of preventing motor noise of single container washing and extracting machine, comprise the motor stator that is fixed on the bucket back and the rotor that joins with drum shaft in bucket, it is characterized in that, described stator external surface is provided with pin member in the gap of inserting between each slit and that filled described each gap, described pin member comprises the receptacle portion that is installed in above the rotor frame, and is separated by a certain interval and and this receptacle portion becomes one, and can fill the plug end in the gap between the slit of described stator along the cylinder of described receptacle portion outer surface.
The structure of the preventing motor noise of aforesaid single container washing and extracting machine, wherein pin member comprises that also being used for that stator is fixed on first on the bucket rear wall connects with arch protuberance, corresponding that be located at the receptacle portion inboard and second be connected and use the arch protuberance with this receptacle portion becomes one.
The structure of the preventing motor noise of aforesaid single container washing and extracting machine, wherein the shape of plug end is quadrangle and can the space between the slit is integral-filled.
The structure of the preventing motor noise of aforesaid single container washing and extracting machine, plug end wherein is triangular in shape, and the front of this plug end can be with the space of slit gap and the spatial separation between rotor and the stator.
The structure of the preventing motor noise of aforesaid single container washing and extracting machine, wherein there is certain space terminal its inside of plug, or this plug end has only the front, and one side is arranged in the top and bottom is open and form groove.
The structure of the preventing motor noise of aforesaid single container washing and extracting machine, wherein the gap between plug end and the stator slotting becomes tight the insertion to cooperate.
The structure of the preventing motor noise of aforesaid single container washing and extracting machine, wherein the pin member receptacle portion is along being provided with the reinforcing arch protuberance that is used for gaining in strength on radius and the cylinder direction.
The structure of the preventing motor noise of aforesaid single container washing and extracting machine, its pin member is a nonmagnetic material.
The structure of the preventing motor noise of aforesaid single container washing and extracting machine is provided with the gap pin member in the gap between each permanent magnet of its rotor.
The structure of the preventing motor noise of aforesaid single container washing and extracting machine, its intermediate gap pin member are the independent laminated structures that can fill the gap between each permanent magnet separately, or the member that is connected as a single entity by several male blades.
The invention has the beneficial effects as follows, produce plosive and the phenomenon of therefrom empathize sound with the air of the slit gap that rests on stator owing to conflicting mutually along the permanent magnet of rotor and the space flow air between the stator when it can prevent motor-driven in advance.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the longitdinal cross-section diagram of the structure of existing single container washing and extracting machine
Fig. 2 is the amplification details drawing of the A portion of Fig. 1
Fig. 3 is the three-dimensional view of the structure of the stator among Fig. 1 and Fig. 2
Fig. 4 be the rotor among Fig. 1 and Fig. 2 structure incision a part of three-dimensional view
Fig. 5 a is the three-dimensional structure diagram of pin member of the present invention
Fig. 5 b is the three-dimensional view at the back side of Fig. 5 a
Fig. 6 a is the plane graph of Fig. 5 b
Fig. 6 b is the I-I line longitdinal cross-section diagram of Fig. 6 a
Fig. 7 is assembled into the plane graph of the state on the stator for pin member of the present invention
Fig. 8 a is the three-dimensional view of structure that has adopted the pin member of another design of the present invention
Fig. 8 b is the three-dimensional view at the back side of Fig. 8 a
Fig. 9 is the plane graph of Fig. 8 b
Figure 10 is the II-II line longitdinal cross-section diagram of Fig. 9
Figure 11 is the three-dimensional view that has adopted rotor of the present invention
The explanation of the symbol of major part
3: bucket 7: stator
8: rotor 9: cylinder
12: permanent magnet 13: slit gap
16: slit (slot) 17: drum shaft
40,50: plug (plug) member 41: socket (hub) portion
Connection in 42: the second is given prominence to (rib) portion 43 with arch: plug end (plug tip)
44: connecting hole 45a, 4b: reinforce the arch protuberance
430: groove
Embodiment
Fig. 5 a to Figure 11 is described in detail embodiments of the invention with reference to the accompanying drawings.
The present invention is fixed on stator 7 back of bucket 3, with rotor 8 directly be connected be installed on bucket 3 in the drum shaft 17 that is connected of cylinder 9 on, thereby when stator 7 energized, thereby the rotation by rotor 8 realizes in the direct-connected roller washing machine of washing and dehydration cylinder 9 rotations, the pin member 40 in the gap 13 that filling in the gap 13 of inserting between each slit 16 has been arranged between the slit on the outer surface of described stator 7.
Here, described pin member 40 comprise receptacle portion 41 above the framework 70 that is installed in stator 7, for can be used for stator 7 be fixed on first on the rear wall of bucket 3 connect with arch protuberance 71 corresponding and receptacle portion 41 inboard form become one with it second connect with arch protuberance 42, along the cylinder direction of receptacle portion 41 outer surfaces separated by a certain interval and become one with it and the plug end 43 in the filling of the gap between the slit 16 of stator 7 can be constituted.
And, the reinforcing arch that is used for gaining in strength outstanding 45a, 45b have been formed along radial direction and cylinder direction at the back side of the receptacle portion 41 of pin member 40.
In addition, described pin member 40 is a nonmagnetic material, and the plug end 43 of pin member 40 is to insert by force between the slit 16, thereby it also has fixed slit 16 concurrently and prevents the effect of its vibration.
Here, preferably plug end 43 being made its inside has certain space, or it is made except that the front, and it is open and fluted 430 formation that one side is arranged in its top and bottom.
Be installed on the stator 7 and the process that is installed on the bucket rear wall of stator is illustrated to constituting aforesaid pin member of the present invention below.
Promptly first connect and to be connected under the state that aligns with arch protuberance 42 shapes with second of pin member 40, the plug end 43 of pin member 40 is inserted between each slit 16 of stator 7 with arch protuberance 71 what make stator 7.
After doing like this, second connection that is formed at pin member 40 is consistent with first connection that is formed at stator 7 with the connecting hole on the arch protuberance 71 73 with the connecting hole on the arch protuberance 42 44, at this moment utilize and connect material, with connect material 19 run through be formed at second of pin member 40 connect with the connecting hole on the arch protuberance 42 44 be formed at stator 7 first be connected with the connecting hole on the arch protuberance 71 73 and be connected on the bucket rear wall, finish assembling thus.
In addition, the effect of formation and assembling pin member of the present invention as above is as described below:
During motor-driven, high speed rotating along with rotor 8, thereby can produce quick flow air stream in the narrow space between stator 7 and rotor 8 pressure is reduced, on the contrary at each slit gap 13 owing to there is air to rest on therebetween, therefore air pressure herein is relatively big.
At this moment, if pin member 40 is not installed on the stator 7, then does not have plug end 43 in the gap between each slit 16 of stator 7, so during motor-driven, rest on the air of each slit gap 13 because pressure differential can flow to the space between rotor 8 and the stator 7, thereby bump against the generation plosive with swiftly flowing air; If at this moment the frequency of plosive is identical with the eigentone of rotor 8 or stator 7, thereby the sound of will empathizing so strengthens noise.
In order to prevent the generation of this phenomenon, in the present invention, member---the pin member 40 that the nonmagnetic substance that gap between the slit 16 can be filled be made is being installed on the stator 7, and it can make and no longer include air in the gap 13 between the slit 16 that is formed on the stator 7 and stop.
Promptly filled each slit gap 13 that is formed on the stator 7, made that no longer including air in the slit gap 13 stops by the plug end 43 of pin member 40.
Therefore, during motor-driven of the present invention, owing to make that by pin member 40 is installed no longer including air in each slit gap 13 of stator 7 stops on stator 7, therefore removed in principle and conflicting along the swiftly flowing air in gap of rotor 8 and stator 7.
In a word, with in the past because thereby rotor 8 clashes the generation plosive with swiftly flowing air between the stator 7 with the air that rests on the slit gap 13 of stator 7 even sonorant is different, in the present invention, make that by in slit gap 13, inserting plug terminal 43 no longer including air in the slit gap 13 stops, thereby prevented to produce the phenomenon of plosive in principle owing to the air conflict.
Adopted the plug end 43 of pin member 40 of another design of the present invention roughly triangular in shape.
Also be preferably plug end 43 to be made its inside certain space is arranged, or it made except that the front that one side is arranged in its top and bottom is open and fluted 430 form here.
Why adopt the pin member 40 of this shape, its reason is that plug end 43 is not all to fill up slit gap 13, but as long as the front end surface of plug end 43 can be opened the space and the spatial separation between rotor 8 and the stator 7 of slit gap 13 just passable.
Under the situation of having passed through such processing, not only can rest on when preventing motor-driven stator 7 each slit gap 13 air and between rotor 8 and stator 7 swiftly flowing air clash, thereby prevented the generation of plosive, can also reduce the material consumption of pin member 40 simultaneously.
In addition, pin member 40 of the present invention does not also require it must is aforesaid single integrated member, also can make the unit sheet (piece) that to fill each slit gap 13 separately, or make the several modular shape that can fill stator 7 along the slit gap in certain interval of cylinder direction, do the effect of the material consumption that also can obtain to reduce pin member 40 like this.
In addition, adopted aforesaid each example design pin member of the present invention 40 or formed certain space in the inside of plug end 43, or the one side in the top and bottom except that the front has formed groove, therefore above-mentioned plug terminal 43 is inserted between the slit 16 can have fixed slit concurrently and prevent that slit 16 is because of the vibrative effect of reversal.
Promptly, when motor 6 drives, the polarity meeting Fast transforms of each slit 16 of stator 7, pin member 40 of the present invention is inserted between the slit 16 by force owing to its plug end 43, therefore it also has fixed slit concurrently and prevents the effect of its vibration, can remove the noises such as sonorant that produce because of slit 16 vibration itself thus.
Figure 11 shows, in order to make the situation that does not produce gap 20 between the permanent magnet 12 that is installed on the inwall and pin member 50 has been installed between each permanent magnet of above-mentioned rotor inboard.
Thereby promptly since rest in the close clearance 20 between the permanent magnet 12 of rotor 8 air can and the space between above-mentioned rotor 8 and stator 7 in swiftly flowing air clash and produce plosive, therefore fill the pin member 50 of getting up in each gap 20 of also having installed on the inner surface of above-mentioned rotor 8, can prevent to produce the phenomenon of plosive thus because of above-mentioned windage with between the permanent magnet 12.
In addition, in Figure 11, the distance between the permanent magnet 12 is far away, and the gap between them 20 is also narrower, what therefore show among the figure is that the close clearance between the permanent magnet 12 20 is filled the situation of getting up separately, but its shape is not defined as the independent sheet shown in Figure 11.
Promptly can make the whole single global shape that is connected as a single entity to the pin member 50 that is used for filling the gap 20 between the permanent magnet 12 that is installed on rotor 8 inwalls, also can make the shape of several unit that are formed by connecting by several pin member 50 of forming one group.
The invention effect:
As mentioned above, in roller washing machine, the present invention can fill between the slit of stator owing to having possessed The pin member in crack, therefore in the time of can preventing motor-driven in principle along the permanent magnet of rotor and stator it Between spatial flow air and rest in the gap between the permanent magnet of above-mentioned rotor and rest on fixed The generation of conflicting phenomenon takes place in the air of the slit gap of son.
Claims (10)
1, a kind of structure of preventing motor noise of single container washing and extracting machine, comprise the motor stator that is fixed on the bucket back and the rotor that joins with drum shaft in bucket, it is characterized in that, described stator external surface is provided with pin member in the gap of inserting between each slit and that filled described each gap, described pin member comprises the receptacle portion that is installed in above the rotor frame, and is separated by a certain interval and and this receptacle portion becomes one, and can fill the plug end in the gap between the slit of described stator along the cylinder of described receptacle portion outer surface.
2, the structure of the preventing motor noise of single container washing and extracting machine according to claim 1 is characterized in that described pin member comprises that also being used for that stator is fixed on first on the bucket rear wall connects with arch protuberance, corresponding that be located at the receptacle portion inboard and second be connected and use the arch protuberance with this receptacle portion becomes one.
3, the structure of the preventing motor noise of single container washing and extracting machine according to claim 2, the shape that it is characterized in that described plug end are quadrangle and can the space between the slit is integral-filled.
4, the structure of the preventing motor noise of single container washing and extracting machine according to claim 2 is characterized in that described plug end is triangular in shape, and the front of this plug end can be with the space of slit gap and the spatial separation between rotor and the stator.
5,, it is characterized in that there is certain space terminal its inside of described plug, or this plug end has only the front, and one side is arranged in the top and bottom is open and form groove according to the structure of the preventing motor noise of claim 3 or 4 described single container washing and extracting machine.
6, the structure of the preventing motor noise of single container washing and extracting machine according to claim 5 is characterized in that the gap between described plug end and the stator slotting becomes tight the insertion to cooperate.
7, the structure of the preventing motor noise of single container washing and extracting machine according to claim 1 and 2 is characterized in that described pin member receptacle portion is along being provided with the reinforcing arch protuberance that is used for gaining in strength on radius and the cylinder direction.
8, according to the structure of the preventing motor noise of claim 1,2,3 or 4 described single container washing and extracting machine, it is characterized in that described pin member is a nonmagnetic material.
9, the structure of the preventing motor noise of single container washing and extracting machine according to claim 1 is characterized in that being provided with the gap pin member in the gap between each permanent magnet of described rotor.
10, the structure of the preventing motor noise of single container washing and extracting machine according to claim 9 is characterized in that described gap pin member is the independent laminated structure that can fill the gap between each permanent magnet separately, or the member that is connected as a single entity by several male blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021211663A CN100349363C (en) | 2002-06-11 | 2002-06-11 | Structure for preventing motor noise of full-automatic laundry machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021211663A CN100349363C (en) | 2002-06-11 | 2002-06-11 | Structure for preventing motor noise of full-automatic laundry machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1464620A CN1464620A (en) | 2003-12-31 |
| CN100349363C true CN100349363C (en) | 2007-11-14 |
Family
ID=29742829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021211663A Expired - Fee Related CN100349363C (en) | 2002-06-11 | 2002-06-11 | Structure for preventing motor noise of full-automatic laundry machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100349363C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8317935B2 (en) | 2006-12-01 | 2012-11-27 | Electrolux Home Products, Inc. | Dishwasher apparatus including sound absorbing device |
| DE112011104548T5 (en) * | 2010-12-22 | 2013-09-26 | Fisher & Paykel Appliances Ltd. | Upgraded device, motor or stator |
| CN211701753U (en) * | 2019-04-01 | 2020-10-16 | 南京德朔实业有限公司 | Power source and electric tool suitable for power source |
| CN112671184A (en) * | 2021-01-13 | 2021-04-16 | 重庆唯远实业有限公司 | Production process of low-cost motor stator |
| CN117411202B (en) * | 2023-10-13 | 2024-05-28 | 合肥梅洛尼智能科技有限公司 | Integrated forming structure of outer barrel of drum washing machine and direct-drive motor stator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH076722A (en) * | 1993-06-17 | 1995-01-10 | Nissin Electric Co Ltd | Ion source device |
| JP2000325693A (en) * | 1999-05-19 | 2000-11-28 | Toshiba Corp | Drum type washing machine |
-
2002
- 2002-06-11 CN CNB021211663A patent/CN100349363C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH076722A (en) * | 1993-06-17 | 1995-01-10 | Nissin Electric Co Ltd | Ion source device |
| JP2000325693A (en) * | 1999-05-19 | 2000-11-28 | Toshiba Corp | Drum type washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1464620A (en) | 2003-12-31 |
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| SE01 | Entry into force of request for substantive examination | ||
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Granted publication date: 20071114 |