CN2641898Y - Improved small dc motor - Google Patents
Improved small dc motor Download PDFInfo
- Publication number
- CN2641898Y CN2641898Y CN 03209748 CN03209748U CN2641898Y CN 2641898 Y CN2641898 Y CN 2641898Y CN 03209748 CN03209748 CN 03209748 CN 03209748 U CN03209748 U CN 03209748U CN 2641898 Y CN2641898 Y CN 2641898Y
- Authority
- CN
- China
- Prior art keywords
- magnetic steel
- fixed
- magnet steel
- end cap
- steel seat
- 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.)
- Expired - Fee Related
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- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses an improved small direct-current motor, which comprises a casing (1), a rotor (4), magnetic steel parts (2), front and back end covers (5, 8), wherein the front and back end covers (5, 8) are fixed at the two ends of the casing (1); the rotor (4) is arranged on bearings (6) of the front and back end covers (5, 8) via a rotor shaft (7); the magnetic steel parts (2) are arranged uniformly on a magnetic steel seat (3) and integrated into one piece; the magnetic steel seat (3) fits the inner holes of the casing (1). Due to the adoption of the structure, the magnetic steel parts (2) and the magnetic steel seat (3) are integrated in one unit by injection molding or casting, then the magnetic steel seat (3) is arranged on the casing (1) and is fixed via the front and back end covers (5, 8), thereby solving the problems of high production cost and unstable product quality of prior small direct-current motors. Therefore, the utility model has the advantages of simple processing, convenient mounting, high production yield, low production cost, stable product quality etc.
Description
One, technical field
The utility model relates to the improvement of a kind of direct current machine, particularly a kind of dc micro-motor.
Two, background technology
As everyone knows, existing dc micro-motor includes brush direct current machine and brshless DC motor, and its magnet steel all is to stick on the housing by glue, etc. assembling after the glue curing again.Adopt this design of mini direct current machine to have following defective, the one, motor in use is subjected to external force vibrations, hyperthermia and superheating to cause that easily magnet steel comes off or local shatter coming off; The 2nd, the processing technology formality is loaded down with trivial details, work efficiency is low, cost is high, need carry out casing inner cleaning, gluing, lays the location, paste, and a step will influence product quality accidentally; The 3rd, after magnet steel was pasted, its bonding quality can't be checked; The 4th, the occurrence positions skew just is difficult to correct in operating process; The 5th, the thickness of glue preparation, gluing is difficult to grasp, and varies with each individual difficult quality guarantee; For all the foregoing reasons, the quality of dc micro-motor can't guarantee that always rate of finished products is low, the production cost height.Though manufacturer gropes, improves what constantly make great efforts, all makes an issue of on glue, is not fundamentally dealing with problems.
Three, summary of the invention
In order to overcome the above-mentioned disadvantage that existing direct current machine exists, the utility model provides that a kind of production technology is simple, rate of finished products is high, production cost is low, the improved dc micro-motor of constant product quality.The technical scheme that its technical problem that solves the utility model adopts comprises housing, rotor, magnet steel, front and rear cover, forward and backward end cap is fixed on the both sides of housing, rotor is arranged on the bearing of forward and backward end cap by armature spindle, described magnet steel evenly is arranged on the magnet steel seat and fuses, and magnet steel seat matches with the housing endoporus.
Be fixed with commutator on the armature spindle of described rear end cap side, be fixed with carbon brush holder on rear end cap, brush is fixed on the carbon brush holder, and the carbon brush of brush matches with commutator.
Described forward and backward end cap is fixed on the magnet steel seat by fixed screw.
After adopting said structure, by injection moulding or cast and disposable magnet steel and magnet steel seat are fused, directly magnet steel seat is installed on the housing and fixes and get final product by forward and backward end cap; Have characteristics such as processing technology is simple, easy for installation, rate of finished products is high, production cost is low, constant product quality.
Four, description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Five, embodiment
Illustrated in figures 1 and 2, the specific embodiments of the improved dc micro-motor of the utility model, comprise housing 1, rotor 4, magnet steel 2, front and rear cover 5,8, forward and backward end cap 5,8 is fixed on the both sides of housing 1, rotor 4 is arranged on the bearing 6 of forward and backward end cap 5,8 by armature spindle 7, described magnet steel 2 evenly is arranged on the magnet steel seat 3 and fuses, and magnet steel seat 3 matches with housing 1 endoporus; Be fixed with commutator 11 on the armature spindle 7 of described rear end cap 8 sides, be fixed with carbon brush holder 10 on rear end cap 8, brush 9 is fixed on the carbon brush holder 10, and the carbon brush of brush 9 matches with commutator 11; Described forward and backward end cap 5,8 is fixing with magnet steel seat 2 by fixed screw 14, makes magnet steel seat 3 and forward and backward end cap 5,8 and housing 1 fixing reliable; Also be fixed with motor base 12 on the described housing 1, motor base 12 is provided with fixing hole 13.
Claims (4)
1, a kind of improved dc micro-motor, comprise housing (1), rotor (4), magnet steel (2), front and rear cover (5,8), forward and backward end cap (5,8) is fixed on the both sides of housing (1), rotor (4) is arranged on the bearing (6) of forward and backward end cap (5,8) by armature spindle (7), it is characterized in that: described magnet steel (2) evenly is arranged on the magnet steel seat (3) and fuses, and magnet steel seat (3) matches with housing (1) endoporus.
2, improved dc micro-motor according to claim 1, it is characterized in that: be fixed with commutator (11) on the armature spindle (7) of described rear end cap (8) side, on rear end cap (8), be fixed with carbon brush holder (10), brush (9) is fixed on the carbon brush holder (10), and the carbon brush of brush (9) matches with commutator (11).
3, improved dc micro-motor according to claim 1 and 2 is characterized in that: described forward and backward end cap (5,8) is fixed on the magnet steel seat (2) by fixed screw (14).
4, improved dc micro-motor according to claim 3 is characterized in that: described housing (1) is fixed with motor base (12), and motor base (12) is provided with fixing hole (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209748 CN2641898Y (en) | 2003-08-15 | 2003-08-15 | Improved small dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03209748 CN2641898Y (en) | 2003-08-15 | 2003-08-15 | Improved small dc motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2641898Y true CN2641898Y (en) | 2004-09-15 |
Family
ID=34289086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03209748 Expired - Fee Related CN2641898Y (en) | 2003-08-15 | 2003-08-15 | Improved small dc motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2641898Y (en) |
-
2003
- 2003-08-15 CN CN 03209748 patent/CN2641898Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |