CN1426137A - Processing method for small motor commutator assembly and small motor and equipment mounted with said commutator assembly - Google Patents
Processing method for small motor commutator assembly and small motor and equipment mounted with said commutator assembly Download PDFInfo
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- CN1426137A CN1426137A CN 03101380 CN03101380A CN1426137A CN 1426137 A CN1426137 A CN 1426137A CN 03101380 CN03101380 CN 03101380 CN 03101380 A CN03101380 A CN 03101380A CN 1426137 A CN1426137 A CN 1426137A
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- rectification sub
- central shaft
- rectification
- sub
- small motor
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Abstract
The method for processing commutator components and small motor and equipment mounted with the said commutator components characterizes by injection moulding method to get the commutator components, either to secure its technical parameters of concentricity, arc radian and verticality or to reduce its process cost with good prospect in batch production and further smaller motors so as to provide high rotation, longer life and stronger vibration small motors for the portable equipments.
Description
Affiliated technical field
The present invention relates to a kind of miniature motor rectification sub-member of optimizing structure, the invention still further relates to a kind of method of processing this rectification sub-member, the present invention also relates to a kind of miniature motor at last, can pass as equipment such as toy, digital camera, small-sized sound system, Portable, personal communication systems rotating efficiently rotating speed.
Background technology
Along with the raising of people's living standard, miniaturization, the lightweight of portable personal device are also had higher requirement, and the miniature motor that these equipment of giving provide power and vibration information to use also more trends towards miniaturization.This miniature motor comprises a cylindrical outer casing, is located at the bearing bore in the cylindrical outer casing, the magnet stator of bearing bore periphery, the rectification sub-member that central shaft links to each other with central shaft, a tail-hood that is used for to the rectification sub-member power supply.There is trouble greatly in this miniature motor in its further miniaturization, the particularly processing of rectification sub-member, normally earlier commutator segment is shaped, the retainer ring drawing, rotating shaft casts in retainer ring, after the assembler is attached to the tail end of retainer ring to commutator segment a slice a slice then, tightly suppress commutator segment with the setting ring, make it be fixed on the tail end of retainer ring, be clipped at last on the rotary pawl folder and make its rotation, grind off burr on the commutator segment with sandpaper, this rectification sub-member is just calculated really and is finished.In above-mentioned several procedures, it is the most difficult that commutator segment is fixed on the retainer ring tail end with setting ring, as everybody knows, in the miniature motor of Φ 6, the width of its commutator segment has only not enough 0.6mm, the tail end diameter has only 1.2mm, and the workman is accurately put in place on so little size, and its difficulty is well imagined.And large batch of motorization assembly may not.As making two commutator segments lean on closely excessively because of carelessness, cause short circuit easily, make the motor cisco unity malfunction.Perhaps commutator segment is tilted, cause its rectification sub-member profile round easily, or ovalisation, cause the commutation spark of brush, make the lost of life of motor at dress.And rate of finished products is low on the one hand for the method for this assembling rectification sub-member, processing difficulties, and cost is difficult to and other like product competition according to height not down, and this on the other hand processing technology is difficult to miniature motor realization miniaturization truly.
Summary of the invention
The purpose of this invention is to provide a kind of miniature motor rectification sub-member of optimizing structure.
Another object of the present invention just provides a kind of method of brand-new processing rectification sub-member.
A further object of the present invention just provides a kind of miniaturized electric motivation, can pass to the equipment that it carries to rotation efficiently.
The technical scheme that the present invention proposes is: adopt the processing method of injection molded, specific practice is just to allow central shaft be directly installed on the centre of retainer ring mould when the fixed processing ring, allows commutator segment according to the needs of design of electrical motor then, fixes with location notch.Again with being added to liquid plastic pressure injection from orifice of uniform temperature, treat separated demolding behind its cooling curing, take the rotary pawl folder at last and go up deburring, thereby finish the injection mo(u)lding processing technology of rectification sub-member.Rectification sub-member through injection molded is a complete integral body on volume like this, thereby has guaranteed technological parameters such as its concentricity, arc degree, perpendicularity.Method with a kind of so brand-new processing rectification sub-member not only provides a kind of rectification sub-member of function admirable, and had more superior space in the miniaturization Design to miniature motor.The miniature motor of Sheng Chaning thus, will for portable set provide rotation more efficient, vibrate more powerful motivation source.
The present invention has not only removed the multi-step process of original rectification sub-member in assembling, compressed whole process flow, thereby greatly reduce the processing cost of rectification sub-member, improved the quality of product, and rapidly and efficiently, simply, reliably, thereby have very high society and economy and be worth.
Description of drawings
Fig. 1 is the whole cutaway view of rectification sub-member injection mould of the present invention;
Fig. 2 obtains the miniature motor rectification sub-member by processing method of the present invention to put twice independent cutaway view;
Fig. 3 is that miniature motor rectification sub-member of the present invention is put twice tail end vertical view.
Fig. 4 is the whole cutaway view of miniature motor that the rectification sub-member that obtains by method processing of the present invention is installed.
Embodiment
Fig. 1 is the whole cutaway view of rectification sub-member injection mould of the present invention, comprises cope match-plate pattern (1), injection hole (2), and cope match-plate pattern (1) links to each other by dowel (4) with lower bolster (5).Core rod (6) wherein is installed in lower bolster A (5), central shaft (13) location hole (7) is arranged on the core rod (6).Lower bolster A (5) links to each other with lower bolster B (10) by set screw (8), in the middle of the lower bolster B (10) thimble (9) is installed, and has jacking block (11) and thimble (9) tangent on the ejector retainner plate (12).Specific practice is to allow the workman that commutator segment (14) is inserted location notch (3) earlier, central shaft (15) is inserted central shaft (15) location hole (7) of mold core B (5).Allow cope match-plate pattern (1) overlap by dowel (4) then with lower bolster A (5), be heated to liquid plastics by (2) pressure injections of injection hole on the cope match-plate pattern (1) after, treat its cooling curing, separate cope match-plate pattern (1) and lower bolster A (5) then.Press lower bolster B (5) thimble (9) with the jacking block (11) on the top board (12), thimble (9) central shaft (15) that moves upward ejects together with rectification sub-member (19), thereby finish the whole injection moulding course of processing, last procedure allows the workman that rectification sub-member (19) is taken on the rotary pawl folder exactly, use the sandpaper deburring, rectification sub-member (19) is just really finished.Fig. 2 is that miniature motor rectification sub-member of the present invention (19) is put twice independent cutaway view, Fig. 3 is that miniature motor rectification sub-member of the present invention (19) is put twice tail end vertical view, Fig. 4 is the whole cutaway view of miniature motor that the rectification sub-member (19) that obtains by processing method of the present invention is installed, it comprises a cylindrical outer casing (18), be located at the bearing bore (17) in the cylindrical outer casing (18), the magnet stator (16) that bearing bore (17) is peripheral, a central shaft (15) and the rectification sub-member (19) that links to each other with central shaft (15), a tail-hood (20) that is used for to rectification sub-member (19) power supply.Can see, a kind of like this processing technology can allow the large batch of mechanization production of workman, thereby reduced the cost of manufacture of whole rectification sub-member (19), and the rectification sub-member of producing (19) is an integral body on volume, thereby guaranteed technological parameters such as its concentricity, arc degree, perpendicularity effectively, improved the rate of finished products of product.Method with a kind of like this rectification sub-member (19) of using injection moulding machine-shaping completely newly, a kind of rectification sub-member (19) of excellent performance not only is provided to miniature motor, and can allow the micro-machine diameter reduce to 3-4mm, the small-sized electric of Sheng Chaning can be delivered on its equipment rotating with vibration signal efficiently thus.
Claims (3)
1, the processing method of rectification sub-member is characterized in that:
(a) central shaft is inserted into central shaft location hole on the core rod;
(b) commutator segment is inserted into the commutator segment location notch of cope match-plate pattern;
(c) by dowel cope match-plate pattern is overlapped with lower bolster;
(d) inject by injection hole with being warmed to liquid plastics;
(e) separate cope match-plate pattern and lower bolster;
(f) promote thimble with the jacking block on the ejector retainner plate;
(g) rectification sub-member is taken out from lower bolster;
(h) described rectification sub-member is clipped on the rotary pawl folder.
2, a kind of miniature motor, comprise a cylindrical outer casing, be located at the bearing bore in the cylindrical outer casing, the magnet stator of bearing bore periphery, a central shaft, the rectification sub-member that links to each other with central shaft, a tail-hood that is used for to the rectification sub-member power supply, two electrode terminals are arranged on the tail-hood, it is characterized in that: have the rectification sub-member that obtains by the described method processing of claim 1.
3, a kind of portable set is characterized in that being equipped with miniature motor as claimed in claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03101380 CN1426137A (en) | 2003-01-07 | 2003-01-07 | Processing method for small motor commutator assembly and small motor and equipment mounted with said commutator assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03101380 CN1426137A (en) | 2003-01-07 | 2003-01-07 | Processing method for small motor commutator assembly and small motor and equipment mounted with said commutator assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1426137A true CN1426137A (en) | 2003-06-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03101380 Pending CN1426137A (en) | 2003-01-07 | 2003-01-07 | Processing method for small motor commutator assembly and small motor and equipment mounted with said commutator assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1426137A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207258B (en) * | 2006-12-15 | 2013-06-05 | 株式会社美姿把 | Commutator, mold for producing commutator, and method for producing commutator |
-
2003
- 2003-01-07 CN CN 03101380 patent/CN1426137A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207258B (en) * | 2006-12-15 | 2013-06-05 | 株式会社美姿把 | Commutator, mold for producing commutator, and method for producing commutator |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |