CN2857326Y - D.C. hollow cup microdynamo - Google Patents
D.C. hollow cup microdynamo Download PDFInfo
- Publication number
- CN2857326Y CN2857326Y CN 200520121595 CN200520121595U CN2857326Y CN 2857326 Y CN2857326 Y CN 2857326Y CN 200520121595 CN200520121595 CN 200520121595 CN 200520121595 U CN200520121595 U CN 200520121595U CN 2857326 Y CN2857326 Y CN 2857326Y
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Abstract
A DC hollow-cup micro motor which including end cover assembly, rotor, stator. The rotor includes: rotating shaft, plastic disc installed on one side of this rotating shaft, hollow-cup shape winding one end of which is set on ex-circle of this plastic disc, commuter set on rotating shaft of the said plastic disc. The stator includes: a bush set on the other end of the said rotating shaft through a pair of bearings inside the cavity of the said winding, permanent magnet assembled on outside surface of middle section of this bush, hollow-cup shape casing assembled at external section of the bush. This casing is kinked outside surface of the said winding, and its opening end faces to one end of the said commuter. The end cover assembly includes: end cover to seal open end of the said casing, a pair of precious metal brushes installed on internal surface of this end cover to fit with the said commuter. The cup-shape winding of this utility model is cured and sealed to one integral part by heat resisting glue thus the winding is not liable to deformation owing to heat. The rotation shaft passes through the commuter which will not damage the commuter. Cup-shape winding goes through balance adjustment in advance to exhibit little vibration.
Description
Technical field
The utility model relates to electrical micro-machine, relates in particular to a kind of drag cup rotor DC motor.
Background technology
In recent years, no iron core drag cup motor is little because of volume, the efficient advantages of higher already has bigger development at the miniature electric toy, because its low moment of inertia more is used in the field that some have requirements such as start-stop response fast.As shown in Figure 4, its inner basic structure: columniform ndfeb magnet 04 constitutes the stator of magnetic loop as motor with motor housing 05, the support (this support is made up of rotating shaft 010 and plastic disk 011) of hollow cup coil 06 and band noble metal cylindricality commutator 07 constitutes the rotor of motor, and brush cover assembly 08 is installed on motor housing one end, brush 09 contacts with the face of cylinder of commutator 07.
Because this type of rotor is with self-adhesive enameled wire bonding cup-shaped rotor block after the shaping pressing, relatively is applicable to the application scenario of micropower.But the cup of bonding one-tenth can, temperature too high and loose distortion excessive because of caloric value when being used in the bigger occasion of power density; Owing to the commutator 07 of precious metal integer injection structure, the left end of rotating shaft 010 is included in the commutator again, and the ability of then bearing axial compressive force is less, and is yielding impaired when the rotating shaft section of stretching out press-fits gear; Because the asymmetry that hollow cup coil 06 is made easily produces bigger vibration.
The utility model content
The purpose of this utility model is stressed unreasonable and the easy technical problem of being out of shape that produces proposes a kind of cup-shaped winding intensity height, the stressed rational direct current drag cup electrical micro-machine of commutator in order to solve existing cup-shaped winding insufficient strength of drag cup electrical micro-machine and commutator.
For addressing the above problem, scheme of the present utility model is a kind of direct current drag cup electrical micro-machine of structure, comprises end-cap assembly, rotor, stator.Rotor comprises: rotating shaft, be located at hollow cup-shaped winding that this rotating shaft plastic disk, end on one side be placed in this plastic disk cylindrical, be set in the commutator in the described plastic disk outside rotating shaft; Stator comprises: by pair of bearings be set in the described winding cavity of being positioned at of described rotating shaft another side sleeve, be located at this sleeve inner segment cylindrical permanent magnet, be located at the hollow cup-shaped casing of the outer section of sleeve, this casing kink is in the cylindrical of described winding, and its openend is towards described commutator one end; End-cap assembly comprises: encapsulate described casing openend end cap, be located at a pair of precious metal electric brush that can cooperate of this rubbing surface of end cover with described commutator.
Wherein, to be coated with redoubling by insulating varnish in aggregates by the heat-resistant adhesive integrally curing for described hollow cup-shaped winding.
Described rotating shaft and plastic disk injection moulding form the support of one.
Described permanent magnet can be rare-earth permanent magnet; Described bearing can be oiliness bearing.
Described end-cap assembly lateral surface is provided with the installing and locating boss.
Described installing and locating boss can be the square circular structure.
After cup-shaped winding of the present utility model is shaped, with insulating varnish dipping, oven dry, more cup-shaped winding is solidified Feng Chengyi integral body with heat-resistant adhesive earlier, has strengthened the intensity of cup-shaped winding, prevent cup be heated after loose distortion; Support adopts compound mode, and commutator is passed in rotating shaft, and rotating shaft can make active force act in the rotating shaft when driving parts such as crimping gear like this, can not act on the commutator and damages commutator; By to cup-shaped winding adjustment balance in advance, solved simultaneously because the vibration problem that cup-shaped winding imbalance causes.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, wherein:
Fig. 1 is the three-dimensional explosive view of the utility model preferred embodiment;
Fig. 2 is the cutaway view of each assembly of the utility model preferred embodiment;
Fig. 3 is the cutaway view after the assembling of the utility model preferred embodiment;
Fig. 3 A is the left view of Fig. 3;
Fig. 4 is existing drag cup electrical micro-machine cut-away illustration.
Embodiment
Fig. 1 shows the basic structure of the utility model preferred embodiment, described direct current drag cup electrical micro-machine, and it comprises end-cap assembly, rotor, stator.As Fig. 2, shown in Figure 3, described rotor comprises: rotating shaft 4, plastic disk 6, an end of being located at this rotating shaft left side be placed in this plastic disk cylindrical hollow cup-shaped winding 7, be set in the commutator 5 in the described plastic disk 6 left side rotating shafts 4.Described stator comprises: by pair of bearings 11 be set in described rotating shaft 4 the right the copper sleeve 9 that is positioned at winding 7 cavitys, be located at this sleeve 9 left side section cylindricals the permanent magnet 8 that is positioned at winding 7 cavitys, be sheathed on the hollow cup-shaped casing 10 of sleeve 9 right sections.This casing kink is in the cylindrical of winding 7, and its openend is towards an end of described commutator 5.Described end-cap assembly comprises: the end cap 1 of encapsulation institute casing openend, be located at a pair of precious metal electric brush 2 that can cooperate with described commutator 5 of this rubbing surface of end cover.
In order to make the more firm of plastic disk 6 and rotating shaft 4 combinations, present embodiment directly is injection molded into support with rotating shaft 4 and plastic disk 6 one.Also the hollow cup-shaped winding 7 usefulness insulating varnish of rotor being coated with redoubling, to solidify envelope with heat-resistant adhesive in aggregates, to strengthen the intensity of whole rotor cup, prevents the loose distortion in back of being heated of rotor cup.As shown in Figure 3A, be convenient installation of the present utility model, the lateral surface of end cap 1 is provided with square circular structure installing and locating boss 12.
As shown in Figure 3, in fact, when in running order, rotor is in the state of relatively rotating as the rotating part of motor and end-cap assembly and stator.In order to reduce friction, the part pad that can contact with end-cap assembly and stator shaft orientation at rotor is provided with wear-resisting polyester pad 3 usually, adopts oiliness bearing 11 between rotating shaft 4 and copper sleeve 9.For increasing the power of this micromachine, permanent magnet 8 uses the higher rare-earth permanent magnet of magnetic field intensity.
After cup-shaped winding of the present utility model was shaped, earlier with insulating varnish dipping, oven dry, more cup-shaped winding being coated with redoubling with insulating varnish, to solidify envelope with heat-resistant adhesive in aggregates, strengthened the intensity of cup-shaped winding, prevents the cup loose distortion in back of being heated.The support commutator adopts the combine and assemble mode, and commutator is passed in rotating shaft, and rotating shaft is when driving parts such as crimping gear like this, and active force affacts on the rubbing surface of end cover by rotating shaft, can not act on the commutator and damages commutator; By to cup-shaped winding adjustment balance in advance, solved simultaneously because the vibration problem that cup-shaped winding imbalance causes.
Claims (6)
1, a kind of direct current drag cup electrical micro-machine, comprise end-cap assembly, rotor, stator, it is characterized in that described rotor comprises: rotating shaft (4), be located at hollow cup-shaped winding (7) that this rotating shaft plastic disk (6), end on one side be placed in this plastic disk cylindrical, be set in the commutator (5) in described plastic disk (6) outside rotating shaft (4); Described stator comprises: by pair of bearings (11) be set in described rotating shaft (4) another side the sleeve (9) that is positioned at described winding (7) cavity, be located at this sleeve inner segment cylindrical permanent magnet (8), be located at the hollow cup-shaped casing (10) of the outer section of sleeve, this casing kink is in the cylindrical of described winding (7), and its openend is towards described commutator (5) one ends; Described end-cap assembly comprises: encapsulate described casing openend end cap (1), be located at a pair of precious metal electric brush (2) that can cooperate of this rubbing surface of end cover with described commutator (5).
2, direct current drag cup electrical micro-machine as claimed in claim 1 is characterized in that, it is in aggregates by the heat-resistant adhesive integrally curing that described hollow cup-shaped winding (7) is coated with redoubling by insulating varnish.
3, direct current drag cup electrical micro-machine as claimed in claim 2 is characterized in that, described rotating shaft (4) and plastic disk (6) injection moulding form the support of one.
4, direct current drag cup electrical micro-machine as claimed in claim 3 is characterized in that, described permanent magnet (8) is a rare-earth permanent magnet; Described bearing (11) is an oiliness bearing.
5, direct current drag cup electrical micro-machine as claimed in claim 4 is characterized in that, described end-cap assembly lateral surface is provided with installing and locating boss (12).
6, direct current drag cup electrical micro-machine as claimed in claim 5 is characterized in that, described installing and locating boss (12) is the square circular structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121595 CN2857326Y (en) | 2005-12-30 | 2005-12-30 | D.C. hollow cup microdynamo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520121595 CN2857326Y (en) | 2005-12-30 | 2005-12-30 | D.C. hollow cup microdynamo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2857326Y true CN2857326Y (en) | 2007-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520121595 Expired - Lifetime CN2857326Y (en) | 2005-12-30 | 2005-12-30 | D.C. hollow cup microdynamo |
Country Status (1)
| Country | Link |
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| CN (1) | CN2857326Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386720A (en) * | 2011-11-18 | 2012-03-21 | 深圳市仓兴达科技有限公司 | Rotor bracket with capacitors and coreless permanent magnet direct current micro motor |
| CN102545496A (en) * | 2012-01-04 | 2012-07-04 | 深圳市仓兴达科技有限公司 | Gluing method of micro coreless cup motor winding |
| CN102953956A (en) * | 2012-11-01 | 2013-03-06 | 华中科技大学 | Compressor driven by brushless coreless linear motor |
| CN103731001A (en) * | 2012-10-15 | 2014-04-16 | 东莞市吉铼升电机有限公司 | Direct-current coreless motor used for driving model airplane |
| CN103855898A (en) * | 2014-02-18 | 2014-06-11 | 惠州市华阳多媒体电子有限公司 | Small-size vibrating motor |
| CN103978893A (en) * | 2014-04-09 | 2014-08-13 | 宁波莱姆格迪童车科技有限公司 | Dual-drive transmission system for child automobile |
| CN105896866A (en) * | 2016-05-20 | 2016-08-24 | 深圳市恒驱电机股份有限公司 | Permanent-magnet brushless DC outer-rotor motor |
| CN107994746A (en) * | 2017-12-21 | 2018-05-04 | 重庆市仓兴达科技有限公司 | A kind of micro hollow cup motor with double magnetic fields |
| CN114123601A (en) * | 2021-10-18 | 2022-03-01 | 西安航天精密机电研究所 | High-reliability speed-reducing coreless motor |
-
2005
- 2005-12-30 CN CN 200520121595 patent/CN2857326Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386720A (en) * | 2011-11-18 | 2012-03-21 | 深圳市仓兴达科技有限公司 | Rotor bracket with capacitors and coreless permanent magnet direct current micro motor |
| CN102545496A (en) * | 2012-01-04 | 2012-07-04 | 深圳市仓兴达科技有限公司 | Gluing method of micro coreless cup motor winding |
| CN102545496B (en) * | 2012-01-04 | 2013-12-25 | 深圳市仓兴达科技有限公司 | Gluing method of micro coreless cup motor winding |
| CN103731001A (en) * | 2012-10-15 | 2014-04-16 | 东莞市吉铼升电机有限公司 | Direct-current coreless motor used for driving model airplane |
| CN102953956A (en) * | 2012-11-01 | 2013-03-06 | 华中科技大学 | Compressor driven by brushless coreless linear motor |
| CN102953956B (en) * | 2012-11-01 | 2015-04-15 | 华中科技大学 | Compressor driven by brushless coreless linear motor |
| CN103855898A (en) * | 2014-02-18 | 2014-06-11 | 惠州市华阳多媒体电子有限公司 | Small-size vibrating motor |
| CN103978893A (en) * | 2014-04-09 | 2014-08-13 | 宁波莱姆格迪童车科技有限公司 | Dual-drive transmission system for child automobile |
| CN103978893B (en) * | 2014-04-09 | 2016-08-17 | 宁波市胜源技术转移有限公司 | A kind of Dual Drive drive system of juvenile automobile |
| CN105896866A (en) * | 2016-05-20 | 2016-08-24 | 深圳市恒驱电机股份有限公司 | Permanent-magnet brushless DC outer-rotor motor |
| CN107994746A (en) * | 2017-12-21 | 2018-05-04 | 重庆市仓兴达科技有限公司 | A kind of micro hollow cup motor with double magnetic fields |
| CN114123601A (en) * | 2021-10-18 | 2022-03-01 | 西安航天精密机电研究所 | High-reliability speed-reducing coreless motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090403 Address after: A, science and Technology Pioneer Park, Tian An Digital City, Shenzhen, Guangdong, 701, postcode: 518000, Futian District Co-patentee after: Chongqing Constar Technology Co., Ltd. Patentee after: Shenzhen Cang Xingda science and Technology Co., Ltd. Address before: A, science and Technology Pioneer Park, Tian An Digital City, Shenzhen, Guangdong, 701, postcode: 518000, Futian District Patentee before: Shenzhen Cangxingda Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070110 |
|
| EXPY | Termination of patent right or utility model |