CN87215879U - Super with dc permanent magnetic motor - Google Patents
Super with dc permanent magnetic motor Download PDFInfo
- Publication number
- CN87215879U CN87215879U CN 87215879 CN87215879U CN87215879U CN 87215879 U CN87215879 U CN 87215879U CN 87215879 CN87215879 CN 87215879 CN 87215879 U CN87215879 U CN 87215879U CN 87215879 U CN87215879 U CN 87215879U
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- CN
- China
- Prior art keywords
- commutator
- permanent
- direct current
- micromotor
- super
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- 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.)
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Abstract
The utility model relates to a super with DC permanent magnetic motor, belonging to the technical field of DC micromotor. The traditionary cylindrical commutator is changed into tabular commutator, and the brush contacts on the plane surface of the tabular commutator, so as to reduce the occupied space on the axial direction. At the same time, the flat thin type magnetic steel is made of the samarium cobalt permanent-magnet alloy, so the thin type DC micromotor more tends towards thin type under the condition of the same output rate.
Description
The utility model relates to the direct current micromotor technical field.
Before the utility model was made, it was 85201106 slim direct current micromotor that the patent No. is arranged.This motor is characterised in that by silicon steel sheet and coil forms the flat and thin rotor, is with the flat and thin permanent-magnet steel outward, constitutes slim direct current micromotor.This slim direct current micromotor, only be rotor and permanent-magnet steel attenuation, not what change on the material of the permanent-magnet steel that influences magnetic flux, the permanent-magnet steel of visible slim direct current micromotor is traditional Ferrite Material in the market, and this slim direct current micromotor is still continued to use traditional pillar commutator, occupy certain space, make this slim direct current micromotor thin not enough.
The purpose of this utility model is in order to overcome above-mentioned weak point, and a kind of ultrathin direct current permanent magnet motor is provided.This ultrathin direct current permanent magnet motor is the sheet commutator by changing the magnetic steel material that influences magnetic flux and becoming the pillar commutator, under the situation of same power output, can make the profile of this ultrathin direct current permanent magnet motor become thinner, thereby widen the range of application of direct current micromotor.
The description of ultrathin direct current permanent magnet motor of the present utility model is as follows: the magnet steel of ultrathin direct current permanent magnet motor is also made flat and thin, makes with the samarium cobalt permanent magnet alloy that magnetic flux is big.The external diameter of magnet steel and the ratio of thickness are 5～6.5.Commutator is done slabbing, is pressed on the upper end of rotating shaft, rotates with rotating shaft.Brush presses on the plane of sheet commutator, makes relative rotary motion with commutator.
Make description of drawings below and provide a kind of embodiment.
Description of drawings:
Fig. 1 is the cutaway view of ultrathin direct current permanent magnet motor of the present utility model.1-loam cake among the figure, 2-brush, 3-upper bearing (metal), 4-lug plate, 5-copper ring, 6-sheet commutator, 7-magnet steel, 8-rotor, 9-copper ring, 10-shell, 11-lower bearing, 12-rotating shaft.
Provide a kind of embodiment below, rotor (8) is to make with the silicon steel sheet that is wound with coil, and silicon steel sheet has four, and every thick 0.5 millimeter, 10 millimeters of the external diameter φ of silicon steel sheet, the diameter of enamelled wire are 0.08 millimeter.Rotor (8) is pressed in the rotating shaft (12).At a sheet commutator of the upper end of rotating shaft pressing (6), the sheet commutator has three branch wire casings, 10 millimeters of commutator external diameter φ, and thick 0.8 millimeter, last plane is a conductive material, lower plane is an insulating material.By brush (2) input, brush (2) presses on the last plane of sheet commutator (6) direct current, and makes relative rotary motion by two lug plates (4).Slim permanent-magnet steel (7) is made with the samarium cobalt permanent magnet alloy, and rotor (6) is installed in the slim permanent-magnet steel (7).Permanent-magnet steel (7) is an annular solid, 14 millimeters of external diameter φ, 10.5 millimeters of internal diameter φ, 2.5 millimeters of thickness.The rotation of rotor (6) is by upper bearing (metal) (3) and lower bearing (11) supporting.There is suitable thickness copper ring (5), (9), to guarantee the minimum and good dynamic balancing of axial endplay.Whole moving component is contained in the space that the loam cake (1) of metal shell (10) and injection mo(u)lding forms.15 millimeters of complete machine external dimensions φ, thick 6 millimeters.
The advantage of super with DC permanent magnetic motor of the present utility model: owing to adopt sheet commutator structure, greatly reduced the space occupied in the axial direction, adopt simultaneously the samarium cobalt permanent magnet alloy as the permanent-magnet steel material, in the identical situation of power output, so that direct current micromotor is thinner, widened the range of application of micro machine.
Claims (2)
1, a kind of ultrathin direct current permanent magnet motor that relates to the direct current micromotor field, the rotor of being made up of the silicon steel sheet that is wound with coil (8), rotating shaft (12), slim permanent-magnet steel (7), brush (4), commutator (6) etc. are formed, it is characterized in that commutator (6) commutator in the form of sheets, be pressed together on the upper end of rotating shaft (12), brush presses on the plane of sheet commutator (6).
2, ultrathin direct current permanent magnet motor according to claim 1 is characterized in that permanent-magnet steel is flat and thin, makes with the samarium cobalt permanent magnet alloy, and the external diameter of magnet steel and the ratio of thickness are 5～6.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87215879 CN87215879U (en) | 1987-11-27 | 1987-11-27 | Super with dc permanent magnetic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87215879 CN87215879U (en) | 1987-11-27 | 1987-11-27 | Super with dc permanent magnetic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87215879U true CN87215879U (en) | 1988-09-14 |
Family
ID=4829921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87215879 Withdrawn CN87215879U (en) | 1987-11-27 | 1987-11-27 | Super with dc permanent magnetic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87215879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7307368B2 (en) | 2000-06-09 | 2007-12-11 | Ricoh Company, Ltd. | DC motor |
-
1987
- 1987-11-27 CN CN 87215879 patent/CN87215879U/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7307368B2 (en) | 2000-06-09 | 2007-12-11 | Ricoh Company, Ltd. | DC motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |