CN101242121A - Motor and bearing supporting structure - Google Patents
Motor and bearing supporting structure Download PDFInfo
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- CN101242121A CN101242121A CNA2007100054853A CN200710005485A CN101242121A CN 101242121 A CN101242121 A CN 101242121A CN A2007100054853 A CNA2007100054853 A CN A2007100054853A CN 200710005485 A CN200710005485 A CN 200710005485A CN 101242121 A CN101242121 A CN 101242121A
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- bearing
- lining
- support structure
- bearing support
- limiter assembly
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Abstract
Provided is a motor and bearing support structure thereof to support a shaft. The bearing support structure includes a bushing that has an opening and a placing space, a bearing being positioned in the placing space and supporting at least part of the shaft, and at least one first restriction component being disposed where the bearing is connected with the bushing.
Description
Technical field
The present invention about motor and bearing support structure thereof, particularly avoids itself and lining to produce the motor and the bearing support structure thereof of relative motion about a kind of rigid bearing about a kind of.
Background technology
Electronic installation (for example fan or hard disk etc.) with rotatable parts often drives rotatable parts by a driving element (for example motor), and driving element has a bearing support structure, and in order to supporting a rotating shaft, and rotating shaft drives rotatable parts again and rotates.
Please refer to Fig. 1, a kind of traditional bearing support structure 1 has a lining 11 and a bearing 12.Wherein, lining 11 has an opening 111, and bearing 12 is arranged in the lining 11, and a rotating shaft S is arranged in bearing 12, and by bearing 12 supportings.In order to keep the steady operation of bearing 12, need make it relative circumferential rotation not take place with lining 11, conventional art is by interfering, be press-fitted (application of force direction is as scheming upward shown in the arrow) or being filled between lining 11 and the bearing 12 by filler (for example viscose glue), and bearing 12 is circumferentially fixing.
Moreover the material that uses interference engagement to be press-fitted to be caused and process variation can cause bearing 12 stressed excessive and be out of shape or shrinkage cavity, make bearing 12 abnormal frictions and influence its reliability and shorten life of product, even rotating shaft S is stuck; In addition, then have the adhesive strength deficiency, or viscose glue enters bearing 12 endoporus and causes shortcomings such as rotating shaft S is stuck by viscose glue is bonding.
In addition, also there are many disappearances in the procedure for processing of lining 11, if during with plastic rubber shaping, equipment (make-up machine) investment is big, die cost is high, poor dimensional stability (easily temperature distortion or softening) and temperature tolerance reliability are poor; If when making with turning, equipment (CNC lathe) investment is big, unit board production capacity is poor (24 hours only about 3000 to 5000,3-5Kpcs/24Hrs), waste of material big (utilance is lower than 60%), cost is higher and dimensional stability is wayward; If during with hot die-casting molding, equipment (die casting machine) investment is big, die cost is high, poor dimensional stability, precise measure need once more Precision Machining and cost is higher.
Therefore, how to provide a kind of bearing support structure to avoid its circumferential movement, improve the axial limiting design with rigid bearing, improve production reliability and usefulness, change the production method of member simultaneously, the problem of avoiding material and process variation to cause, real is one of important topic.
Summary of the invention
Because above-mentioned problem, purpose of the present invention is avoided its circumferential movement for a kind of rigid bearing is provided, to improve the motor and the bearing support structure thereof of production reliability and usefulness.
Because above-mentioned problem, another object of the present invention is avoided its circumferential movement and axial motion for a kind of rigid bearing is provided, to improve the motor and the bearing support structure thereof of production reliability and usefulness.
Because above-mentioned problem, a further object of the present invention is by a preferred production method, the design margin of enlarged configuration shape, avoids the motor and the bearing support structure thereof of waste of material and process variation problem.
So, for reaching above-mentioned purpose, support a rotating shaft according to a kind of bearing support structure of the present invention, comprise a lining, a bearing and at least one first limiter assembly.Lining has an opening and an accommodation space; Bearing is supported to the rotating shaft of small part, and is arranged in the accommodation space; First limiter assembly is arranged on the junction of bearing and lining.
For reaching above-mentioned purpose, support a rotating shaft according to another kind of bearing support structure of the present invention, comprise a lining, a bearing, at least one first limiter assembly and at least one second limiter assembly.Lining has an opening and an accommodation space, and bearing is supported to the rotating shaft of small part, and is arranged in the accommodation space, and first limiter assembly is arranged on the junction of bearing and lining, and second limiter assembly is arranged on opening, and the contact bearing.
For reaching above-mentioned purpose, comprise a fixed structure, the circuit board of a bearing support structure and one and one stator electrically connect according to a kind of motor of the present invention.Bearing support structure supports a rotating shaft, rotating shaft comprises a lining again, have an opening and an accommodation space, one bearing is supported to this rotating shaft of small part, and is arranged in this accommodation space, and at least one first limiter assembly, be arranged on the junction of bearing and lining, to avoid this bearing and lining to relatively rotate, wherein fixed structure coats and fixing at least partly lining, and circuit board is arranged on the fixed structure.
For reaching above-mentioned purpose, comprise a fixed structure according to another kind of motor of the present invention, the circuit board that one and one stator electrically connects and a kind of.Bearing support structure supports a rotating shaft, wherein bearing support structure comprises a lining, it has an opening and an accommodation space, one bearing is supported to the rotating shaft of small part, and is arranged in this accommodation space, at least one first limiter assembly, be arranged on the junction of this bearing and this lining, and at least one second limiter assembly, be arranged on this opening, and this bearing of contact.Wherein fixed structure system coats and the fixing lining of part at least, and circuit board is arranged on the fixed structure.
From the above, because of foundation a kind of bearing support structure of the present invention is that one first limiter assembly is set between bearing and lining, and, avoid bearing circumferentially to rotate at circumferential rigid bearing and lining.Compare with conventional art, the present invention does not need viscose glue bonding, avoids the adhesive strength problem and enters brearing bore, also need not interfere to be press-fitted, and avoids brearing bore stress deformation or shrinkage cavity and stuck rotating shaft, to improve production reliability and usefulness.In addition, the present invention more can avoid the bearing axial motion by the restrictions contact bearing of one the 3rd limiter assembly or lining, to promote the fan overall efficiency.Moreover the present invention is by non-cutting cold working mode, changes the production method of member, the design margin of enlarged configuration shape, avoids waste of material and process variation.
Description of drawings
Fig. 1 is a kind of schematic diagram of traditional bearing support structure.
Fig. 2 is the schematic diagram according to the bearing support structure of the preferred embodiment of the present invention.
Fig. 3 A and Fig. 3 B are the top view according to the bearing support structure of the preferred embodiment of the present invention, show that first limiter assembly has different variation aspects.
Fig. 4 is for being linked to the schematic diagram of a fixed structure according to the bearing support structure of the preferred embodiment of the present invention.
Fig. 5 has protuberance to be linked to the schematic diagram of fixed structure for the lining according to the bearing support structure of the preferred embodiment of the present invention.
Fig. 6 is the schematic diagram that is linked to fixed structure according to the lining of the bearing support structure of the preferred embodiment of the present invention with mode of texturing.
Fig. 7 is according to the rolling bearing of the preferred embodiment of the present invention and the lining that forms with mode manufacturings such as cold forging, cold-heading or cold-extrudeds thereof, the schematic diagram that combines with motor.
The component symbol explanation:
1,2,2 ' bearing support structure 11,21,21 ' lining
111,211 openings 12,22,22 ' bearing
13,242 lids, 212 accommodation spaces
213 limiting sections, 23 first limiter assemblies
231,234,251 recesses, 232,252 protuberances
233 ribs, 24 second limiter assemblies
241,241 ' elastic component, 242 lids
25 the 3rd limiter assemblies, 26 spacers
3 motors, 30 fixed structures
31 circuit boards, 32 stators
The S rotating shaft
Embodiment
Hereinafter with reference to relevant drawings, a kind of bearing support structure according to the preferred embodiment of the present invention is described, wherein components identical will be illustrated with identical reference marks.
Please refer to Fig. 2, a kind of bearing support structure 2 of the preferred embodiment of the present invention comprises a lining 21 and a bearing 22, and bearing support structure 2 supportings one rotating shaft S.Wherein, lining 21 has an opening 211 and an accommodation space 212, and bearing 22 is arranged in the accommodation space 212 of lining 21, and rotating shaft S is arranged in bearing 22, and bearing 22 is supported to the rotating shaft S of small part.Bearing support structure 2 comprises that also at least one first limiter assembly 23 for example is a circumferential limiter assembly, and the junction that it is arranged on bearing 22 and lining 21 relatively rotates with respect to lining 21 to avoid bearing 22, for example is circumferentially to rotate.Bearing 22 can be sleeve bearing (sleeve bearing), rolling bearing (ball bearing) or hydrodynamic pressure bearing (fluid dynamic bearing).
In the present embodiment, first limiter assembly 23 has different variation aspects, shown in Fig. 3 A and Fig. 3 B, it is the top view of bearing support structure 2, and first limiter assembly 23 can have a recess 231 and a protuberance 232, recess 231 and protuberance 232 corresponding settings, and protuberance 232 can be arranged on the inwall of lining 21,231 outer walls that are arranged on bearing 22 of recess, or recess 231 can be arranged on the inwall of lining 21,232 outer walls that are arranged on bearing 22 of protuberance.In addition, recess 231 or protruding 232 ones can be one-body molded with lining 21 or bearing 22.In addition, first limiter assembly 23 also can have that a rib 233 and two recesses, 234, two recesses 234 are corresponding respectively to be arranged on the inwall of lining 21 and the outer wall of bearing 22, and rib is arranged between two recesses 231, shown in Fig. 3 B.
Referring again to Fig. 2, bearing support structure 2 also comprises one second limiter assembly 24, and it is arranged on opening 211, and contact bearing 22, in order to the axial motion of restriction bearing 22.At this, second limiter assembly 24 comprises an elastic component 241, its contact bearing 22, and be arranged in the outer wall of rotating shaft S, and be pressed on bearing 22 in advance in order to provide, at this, elastic component 241 can be an elastomeric pad or an elastic washer.Second limiter assembly 24 also comprises a lid 242, and it is covered on opening 211, and contact elastic component 241, and lid 242 is in order to the axial motion of restriction bearing 22.As buffering, lid 242 does not directly force in bearing 22, and avoids in the conventional art by elastic component 241, and the direct pressing bearing of lid makes it stressed excessive, cause brearing bore distortion or shrinkage cavity, so that rotating shaft S is stuck.In addition, second limiter assembly 24 also can be a restrictions, by the inwall of lining 21 extend formed, restriction site is in opening 211, and contact bearing 22.Between restrictions and the bearing 22, can have an elastic component equally, make restrictions directly not force in the purpose that bearing 22 reaches buffering.
In the present embodiment, the material of lining 21, elastic component 241 or lid 242 can be soft alloy or its alloy, and wherein soft alloy for example is aluminium or tin.Owing to use soft alloy, so lining 21, elastic component 241 or lid 242 can be made by non-cutting cold working mode, for example cold forging, cold-heading or cold-extruded, and avoid in the conventional art, use the processing that processing mode brought restriction, expensive and waste of material such as plastic rubber shaping, metal turning or injection moulding, and then save cost and have the environmental protection effect.In addition, by time processing moulding such as cold forging, cold-heading or cold-extrudeds and there is not the waste material mode, production capacity can be promoted to per 24 hours 20,000 output by per 24 hours output of 3,000 to 5,000 of conventional art through the actual verification present embodiment.
Please refer to Fig. 4, a bearing support structure 2 and a fixed structure 30 link, and the material that fixed structure 30 coated, was fixed to lining 21 stationary bushings of small part is plastic cement or low-temperature metal.In the present embodiment, bearing support structure 2 is applied to a motor, and fixed structure 30 is a motor base.In addition, bearing support structure 2 comprises that also one the 3rd limiter assembly 25 also is an axial restraint assembly, it is arranged on the junction of lining 21 and fixed structure 30, at this, the 3rd limiter assembly 25 has a recess 251 and a protuberance 252, recess 251 and protuberance 252 corresponding settings, and recess 251 can be arranged on the inwall of fixed structure 30, the outer wall that protuberance 252 is arranged on lining 21 as shown in Figure 5, or protuberance 262 is arranged on the inwall of fixed structure 30, recess 251 is arranged on the outer wall of lining 21.In addition, as shown in Figure 6, lining 21 can also mode of texturing such as the dotted portion of figure be linked to fixed structure 30.
Please refer to Fig. 7, another kind of bearing support structure 2 ' a comprise lining 21 ' and at least one bearing 22 ', the bearing support structure 2 of present embodiment ' be at least one limiting section 213 of lining 21 ' have with bearing support structure 2 differences of previous embodiment, bearing 22 ' be two rolling bearings, limiting section 213 contact bearings 22 ', cooperation elastic component 241 ' and spacer 26, make bearing 22 ' location.Wherein, elastic component 241 ' for pre-compressed spring provide precompression bestow bearing 22 ', spacer 26 for ring plate embed rotating shaft S and butt bearing 22 '.In addition, lining 21 ' be to form with mode manufacturings such as cold forging, cold-heading or cold-extrudeds, at least one first limiter assembly 23 of bearing support structure 2 ' also comprise, its be arranged on bearing 22 ' with lining 21 ' the junction, to avoid bearing 22 ' with respect to lining 21 ' circumferentially rotate.
Bearing support structure 2 ' when being applied to motor 3, earlier with bearing support structure 2 ' link with the fixed structure 30 of motor 3, but the mode of texturing of the 3rd limiter assembly 25 of mode of connection application drawing 4, Fig. 6 or with bond, chimeric, sealed or welding mode links.Then, circuit board 31 and stator 32 are placed in regular turn bearing support structure 2 '.
In sum, because of foundation a kind of bearing support structure of the present invention is that a circumferential limiter assembly is set between bearing and lining, and, avoid bearing circumferentially to rotate at circumferential rigid bearing and lining.Compare with conventional art, the present invention does not need viscose glue bonding, avoids the adhesive strength problem and enters brearing bore, also need not interfere to be press-fitted, and avoids brearing bore stress deformation or shrinkage cavity, and then avoids stuck rotating shaft, and improve production reliability and usefulness.In addition, the present invention more can be by the restrictions contact bearing of an axial restraint assembly or lining, and avoids the bearing axial motion, further promotes whole reliability and usefulness.Moreover, the present invention is by non-cutting cold working mode, changes the production method of member, remove processing for the restriction of planform, enlarge design margin, avoid material and process variation problem, more can and not have the waste material mode, improve production capacity, reduce waste of material with the time processing moulding.
The above only is an illustrative, but not is restricted person.Anyly do not break away from spirit of the present invention and category, and, all should be included in the scope of the invention its equivalent modifications of carrying out or change.
Claims (14)
1. a bearing support structure supports a rotating shaft, comprising:
One lining has an opening and an accommodation space;
One bearing, this rotating shaft of supporting part, and be arranged in this accommodation space; And
At least one first limiter assembly is arranged on the junction of this bearing and this lining, relatively rotates with respect to this lining to avoid this bearing.
2. a bearing support structure supports a rotating shaft, comprising:
One lining has an opening and an accommodation space;
One bearing, this rotating shaft of supporting part, and be arranged in this accommodation space;
At least one first limiter assembly is arranged on the junction of this bearing and this lining; And
At least one second limiter assembly is arranged on this opening, and this bearing of contact.
3. bearing support structure according to claim 1 and 2, wherein this first limiter assembly has a recess and a protuberance, the corresponding setting with this protuberance of this recess.
4. bearing support structure according to claim 3, wherein this recess is arranged on the inwall of this lining, and this protuberance is arranged on the outer wall of this bearing, or this protuberance is arranged on the inwall of this lining, and this recess is arranged on the outer wall of this bearing.
5. bearing support structure according to claim 1, wherein this bearing support structure also comprises one second limiter assembly.
6. bearing support structure according to claim 5, wherein this second limiter assembly is an axial restraint assembly, it is arranged on this opening, and this bearing of contact, in order to limit the axial motion of this bearing.
7. bearing support structure according to claim 5, this second limiter assembly wherein, by the inwall of this lining extend formed.
8. bearing support structure according to claim 5, wherein this second limiter assembly also comprises an elastic component and a lid, this this bearing of elastic component contact.
9. bearing support structure according to claim 8, this elastic component are an elastomeric pad or an elastic washer, and the material of this elastic component is soft alloy or its alloy, and this soft alloy is aluminium or tin.
10. bearing support structure according to claim 8, wherein this cover cap is should opening, and this elastic component of contact, and the material of this lid is soft alloy or its alloy, and this soft alloy is aluminium or tin.
11. bearing support structure according to claim 1 also comprises:
At least one the 3rd limiter assembly is arranged on the junction of this lining and a fixed structure, and this fixed structure coats and an end of this lining of standing part.
12. bearing support structure according to claim 1 and 2, wherein this lining is to be linked to a fixed structure with mode of texturing.
13. a motor comprises:
One fixed structure;
One bearing support structure supports a rotating shaft, comprising:
One lining has an opening and an accommodation space;
One bearing is supported to this rotating shaft of small part, and is arranged in this accommodation space; And
At least one first limiter assembly is arranged on the junction of this bearing and this lining, rotates with respect to this lining to avoid this bearing; And
One circuit board and a stator, this circuit board and this stator electrically connect;
Wherein, this fixed structure system coats and fixing this lining of part at least, and this circuit board is arranged on this fixed structure.
14. a motor comprises:
One fixed structure;
A kind of bearing support structure supports a rotating shaft, comprising:
One lining has an opening and an accommodation space;
One bearing is supported to this rotating shaft of small part, and is arranged in this accommodation space;
At least one first limiter assembly is arranged on the junction of this bearing and this lining; And
At least one second limiter assembly is arranged on this opening, and this bearing of contact; And
One circuit board and a stator, this circuit board and this stator electrically connect;
Wherein, this fixed structure system coats and fixing this lining of part at least, and this circuit board is arranged on this fixed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100054853A CN101242121B (en) | 2007-02-08 | 2007-02-08 | Motor and bearing supporting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100054853A CN101242121B (en) | 2007-02-08 | 2007-02-08 | Motor and bearing supporting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101242121A true CN101242121A (en) | 2008-08-13 |
| CN101242121B CN101242121B (en) | 2011-09-14 |
Family
ID=39933400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100054853A Active CN101242121B (en) | 2007-02-08 | 2007-02-08 | Motor and bearing supporting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101242121B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071557A (en) * | 2009-11-24 | 2011-05-25 | 三星电子株式会社 | Bush member, washing machine having the bush member and manufacturing method of the bush member and the washing machine |
| CN103986269A (en) * | 2014-04-09 | 2014-08-13 | 江苏一东航空机械有限公司 | Automobile wind-up window motor |
| CN107863836A (en) * | 2016-09-21 | 2018-03-30 | 天佑电器（苏州）有限公司 | The packing installing mechanism of motor in middle-size and small-size electrical equipment |
| CN109546785A (en) * | 2015-05-13 | 2019-03-29 | 株式会社电装 | Electric motor and method for manufacturing the electric motor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH657725A5 (en) * | 1981-04-14 | 1986-09-15 | Papst Motoren Kg | ARRANGEMENT FOR SUPPRESSING AXIAL ROTOR VIBRATIONS IN AN ELECTRIC SMALL MOTOR. |
| US4986675A (en) * | 1989-06-12 | 1991-01-22 | Eaton Indiana, Inc. | Self-aligning bearing |
| JPH05240241A (en) * | 1992-02-28 | 1993-09-17 | Ebara Corp | Spindle motor |
| TW263629B (en) * | 1992-05-27 | 1995-11-21 | Nihon Densan Kk | |
| DE69924597T2 (en) * | 1998-07-17 | 2006-03-02 | Koninklijke Philips Electronics N.V. | DYNAMIC GROOVE BEARING WITH POROUS LUBRICANT CONTAINER |
| JP2003329032A (en) * | 2002-05-15 | 2003-11-19 | Sankyo Seiki Mfg Co Ltd | Dynamic pressure bearing device |
-
2007
- 2007-02-08 CN CN2007100054853A patent/CN101242121B/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102071557A (en) * | 2009-11-24 | 2011-05-25 | 三星电子株式会社 | Bush member, washing machine having the bush member and manufacturing method of the bush member and the washing machine |
| CN102071557B (en) * | 2009-11-24 | 2015-04-01 | 三星电子株式会社 | Bush member, washing machine having the bush member, and manufacturing method of the bush member and the washing machine |
| CN103986269A (en) * | 2014-04-09 | 2014-08-13 | 江苏一东航空机械有限公司 | Automobile wind-up window motor |
| CN109546785A (en) * | 2015-05-13 | 2019-03-29 | 株式会社电装 | Electric motor and method for manufacturing the electric motor |
| CN109546785B (en) * | 2015-05-13 | 2021-05-04 | 株式会社电装 | Electric motor and method for manufacturing the same |
| CN107863836A (en) * | 2016-09-21 | 2018-03-30 | 天佑电器（苏州）有限公司 | The packing installing mechanism of motor in middle-size and small-size electrical equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101242121B (en) | 2011-09-14 |
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