CN86108503A - Miniature motor - Google Patents
Miniature motor Download PDFInfo
- Publication number
- CN86108503A CN86108503A CN198686108503A CN86108503A CN86108503A CN 86108503 A CN86108503 A CN 86108503A CN 198686108503 A CN198686108503 A CN 198686108503A CN 86108503 A CN86108503 A CN 86108503A CN 86108503 A CN86108503 A CN 86108503A
- Authority
- CN
- China
- Prior art keywords
- motor
- miniature motor
- miniature
- bearing
- motor casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
- G11B19/20—Driving; Starting; Stopping; Control thereof
- G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Manufacture Of Motors, Generators (AREA)
- Dc Machiner (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A kind of miniature motor, this miniature motor has a cylindrical cup-shaped casing and a rotor, one end of armature spindle also can rotate in this bearing with the bearings that is located at bottom of shell, wherein, the outer bottom surface of cup-shaped cylindrical motor casing and bearing top circle perimeter surface make motor casing bottom outer surface and this axle become 90 ° to intersect substantially through cutting or grinding and polishing.
Description
The present invention, generally speaking, be about miniature motor, in more detail, be about a kind of such miniature motor, wherein, the circumferential surface of the end face of motor casing or installed surface and bearing all passes through cutting or grinding and polishing to satisfy miniature motor in the strict demand aspect the size, for example, armature spindle is to the perpendicularity of motor mounting face or the concentricity between axle and the bearing etc.
The magneto miniature motor always is widely used as the drive motor of stereo set, optical device, office equipment and the equipment relevant with electronic computer.Recently, the application of miniature motor on the minidisk driven unit also placed on the agenda.
With the drive motor of miniature motor as minidisk equipment, usually when being installed to minidisk equipment, miniature motor requires to have high-precision tolerance, for example, axle will ask with the perpendicularity between the motor mounting face and be accurate to 90 ° ± 6 ', spool and bearing of motor between concentricity requirement in 0.02 millimeter.For realizing producing by batch and reduce cost, magneto miniature motor casing is normally made with the method for drawing and stamped metal sheet material.Therefore, to mass-produced motor product, deal with the adequate measure of above-mentioned strict demand dimensionally owing to lack, thus have under the situation of sacrificing production efficiency, check comprehensively, to pick out the motor product that satisfies above-mentioned strict demand dimensionally.The present patent application people is in line with the hope of improving above-mentioned shortcoming, and the past proposed a kind of miniature motor that satisfies the strict demand on the above-mentioned size through the liner of high-precision processing with assurance that has.But the desired tolerance grade of the manufacturing of this liner is quite high, thereby production cost increases.
The present invention is intended to address these problems.
An object of the present invention is to provide a kind of such miniature motor, this miniature motor casing system is with drawing the shaping manufactured, and the external peripheral surface process cutting of motor casing end face (cup-shaped cylindrical shell bottom outer surface) and bearing or grinding and polishing are to reach desired perpendicularity and concentricity.
Read following detailed description and can understand above-mentioned purpose of the present invention and other purpose with reference to accompanying drawing.
Accompanying drawing is a cut-away section end view of implementing miniature motor of the present invention.
Among the figure, numbering 1 be a motor casing, and 2 be spool, and 3 are the motor mounting face or press the finished bottom of shell outer surface of the present invention; 4 is the external peripheral surface of bearing, and machining was carried out by the present invention in this surface; 5 is Terminal of motor; 6 is permanent magnet; 7 is rotor; 8 is brush; 9 is end cap; 10 is commutator; 11 is bearing; 12 is the terminal insulating sleeve; 13 is the surface that the external equipment of this motor is housed, and 14 is screw.
The structure of the illustrated motor general motor with general type basically is identical, therefore not special adds introduction here.Rotor 7 is supported by two bearings 11, and armature spindle can rotate in bearing.
Miniature motor of the present invention system carries out machining to finished product after making by general a large amount of production processes, or semi-finished product that bearing 11 is contained in motor casing are carried out machining.
The numerical value of all regulations of this specification beginning is that benchmark proposes with axle 2.Therefore when carrying out machining, the axle 2 of finished product or semi-finished product cell motivation is installed on the anchor clamps, installed surface 3 and the bearing top circle perimeter surface to motor casing 1 is that benchmark carries out machining with the axle 2 that installs again.Processing can be cut or grinding/polishing processing.Promptly, installed surface (being about to the installed surface that motor mounting is used to minidisk equipment and other external equipment) to motor carries out machining, its perpendicularity with respect to axle 2 is remained in 90 ° ± 6 ' scope, thereby motor mounting face 3 and axle 2 are intersected vertically.In addition, bearing top circle perimeter surface 4 is also processed, the concentricity between external peripheral surface 4 and the axle 2 is remained in 0.02 millimeter scope.
As mentioned above, the present invention has reached such purpose, namely as long as some parts of mass-produced miniature motor are processed, can draw on the size miniature motor that the precision with respect to external equipment meets the requirements. Therefore, the present invention's drive motor of can quite low cost providing minidisk equipment to use. In addition because without liner, thereby reduced the thickness of motor.
Claims (3)
1, a kind of miniature motor, this miniature motor has a cup-shaped cylindrical shell and a rotor, one end of the armature spindle of this rotor in the said motor casing bearings that is located at said motor casing bottom, armature spindle can rotate in this bearing, said miniature motor is characterised in that, the outer bottom surface of said cup-shaped cylindrical motor casing and the external peripheral surface of said bearing make the outer bottom surface of said motor casing become 90 degree to intersect substantially with said axle through cutting or grinding and polishing.
According to the described miniature motor of claim (1), it is characterized in that 2, the screw hole of a dress screw is arranged on the said motor outer bottom surface.
According to the described miniature motor of claim (1), it is characterized in that 3, the outer bottom surface of said motor casing is that benchmark carried out machining with the axis of said axle.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP278140/85 | 1985-12-11 | ||
| JP60278140A JPS62138032A (en) | 1985-12-11 | 1985-12-11 | Miniature motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86108503A true CN86108503A (en) | 1987-07-08 |
Family
ID=17593143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN198686108503A Pending CN86108503A (en) | 1985-12-11 | 1986-12-11 | Miniature motor |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS62138032A (en) |
| KR (1) | KR870006693A (en) |
| CN (1) | CN86108503A (en) |
| DE (1) | DE3642030A1 (en) |
| GB (1) | GB2185153B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT207938B (en) * | 1958-12-20 | 1960-03-10 | Karl Bramauer | Flange motor provided with fan caps fitted on the motor flange |
| DE1207998B (en) * | 1964-09-04 | 1965-12-30 | Licentia Gmbh | Method for assembling small electrical machines with a runner shaft mounted on one side on a bearing plate and a stator core attached |
| DE1613262B2 (en) * | 1967-08-16 | 1972-12-21 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | TWO-PIECE HOUSING FOR AN ELECTRIC MOTOR |
| JPS60144123A (en) * | 1983-12-29 | 1985-07-30 | Fanuc Ltd | Ac servo motor and manufacture thereof |
-
1985
- 1985-12-11 JP JP60278140A patent/JPS62138032A/en active Pending
-
1986
- 1986-12-03 KR KR860010309A patent/KR870006693A/en not_active Application Discontinuation
- 1986-12-09 DE DE19863642030 patent/DE3642030A1/en not_active Ceased
- 1986-12-11 CN CN198686108503A patent/CN86108503A/en active Pending
- 1986-12-11 GB GB8629687A patent/GB2185153B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB8629687D0 (en) | 1987-01-21 |
| KR870006693A (en) | 1987-07-14 |
| GB2185153B (en) | 1989-12-20 |
| GB2185153A (en) | 1987-07-08 |
| JPS62138032A (en) | 1987-06-20 |
| DE3642030A1 (en) | 1987-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |