CN201904708U - Micro motor - Google Patents
Micro motor Download PDFInfo
- Publication number
- CN201904708U CN201904708U CN201020668814XU CN201020668814U CN201904708U CN 201904708 U CN201904708 U CN 201904708U CN 201020668814X U CN201020668814X U CN 201020668814XU CN 201020668814 U CN201020668814 U CN 201020668814U CN 201904708 U CN201904708 U CN 201904708U
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- CN
- China
- Prior art keywords
- pole piece
- iron core
- micro motor
- core body
- shell
- 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 - Lifetime
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a micro motor. The micro motor comprises a rotor component, wherein the rotor component comprises a rotor rotating shaft, an iron core piece, a commutator and a coil; the iron core piece comprises an iron core body; at least three pole piece groove openings are evenly formed on the edge of the iron core body along the circumferential direction; each pole piece groove opening extends towards the inner part of the iron core body in the radial direction and the circumferential direction to form pole piece grooves; the pole piece grooves are not communicated with one another; and iron core pole pieces are formed by the parts of the iron core body, which are between adjacent pole piece grooves. The iron core piece of the micro motor is designed with narrow groove openings, and the pole piece groove openings are provided with acute angle structures, so that the effective area between the iron core pole pieces and magnetic steel is increased, a sinusoidal magnetic field waveform can be formed, the electromagnetic force of harmonic waves is reduced, and the tank capacity is improved.
Description
Technical field
The utility model relates to the micro motor field, relates in particular to the lamination structure of using in the micro motor.
Background technology
Along with the fast development that technology is maked rapid progress, electronic product is also had higher requirement to the design of motor.Because the structural design of existing motor lamination is unreasonable, cause existing motor to have that magnetic pull is big, starting voltage is high, startability is poor, and problem such as noise and vibration be big.
The utility model content
A purpose of the present utility model provides a kind of micro motor that increases effective area between iron core pole piece and magnetic sheet.
The technical solution adopted in the utility model is: a kind of micro motor comprises a shell, stator module, rotor assembly and end-cap assembly; Described stator module comprises two magnet steel and stator bearing, and described stator bearing is installed on the aperture that is positioned on shell one end face, and two magnet steel are fixed on the inwall of shell relative to one another; Described end-cap assembly comprises brush, end cap and end cap bearing, and described end cap is fixed on the other end of shell, and described end cap bearing is installed on the end cap; Described rotor assembly comprises rotor shaft, lamination, commutator and coil, one end of described rotor shaft is supported in the aperture of shell by the stator bearing, and it is protruding by an end face of shell, the other end of rotor shaft places in the described end cap bearing, described lamination is fixedly installed on the rotor shaft, and between two magnet steel, described coil is connected with brush-commutated by commutator; Described lamination comprises the iron core body, the upper edge, edge of described iron core body circumferentially evenly is provided with at least three pole piece notches, each pole piece notch all radially and circumferentially extends to form the pole piece groove to the inside of iron core body, do not communicate between each pole piece groove, the part of described iron core body between the consecutive roots film trap forms the iron core pole piece.
Preferably, described pole piece notch is narrow notch, described pole piece notch at the width on the cross section less than the width of pole piece groove on any cross section.
Preferably, the width of described pole piece groove on cross section reduces gradually from beginning to increase gradually earlier with position that the pole piece notch is accepted mutually again; Described iron core pole piece is a horn structure at the position at pole piece notch place.
The beneficial effects of the utility model are: lamination of the present utility model is narrow notch, and pole piece notch place is a horn structure, and the effective area between iron core pole piece and magnet steel is increased, and helps forming the sinusoid field waveform, reduces the harmonic wave electromagnetic force, improves tankage; In addition, adopt this kind design can reduce motor magnetic pull, reduce motor starting voltage, improve the startability of motor and reduce the vibration and the noise of motor.
Description of drawings
Fig. 1 shows the structure of the lamination of micro motor employing of the present utility model;
What Fig. 2 showed micro motor of the present utility model partly cuts open structural representation.
Embodiment
As shown in Figure 1, the lamination 7 that micro motor of the present utility model adopts comprises iron core body 73, the upper edge, edge of iron core body 73 circumferentially evenly is provided with at least three pole piece notches 72, each pole piece notch 72 all radially and circumferentially extends to form pole piece groove 74 to the inside of iron core body 73, do not communicate between each pole piece groove 74, the part of described iron core body 73 between consecutive roots film trap 74 forms iron core pole piece 71.At this, this pole piece notch 72 is narrow notch with respect to existing lamination, less than the width of pole piece groove 74 on any cross section, the width of this pole piece groove 72 on cross section reduces gradually from beginning to increase gradually earlier with position that pole piece notch 72 is accepted mutually again at the width on the cross section for it.The lamination 7 of this kind structure makes the iron core pole piece 71 and the effective area of magnet steel 8 interphase interactions of micro motor increase, and helps forming sinusoidal magnetic field, reduces the harmonic wave electromagnetic force, improves tankage.
Micro motor with this kind lamination 7 as illustrated in fig. 1 and 2, this micro motor comprises a shell 4, stator module, rotor assembly and end-cap assembly, this stator module comprises two magnet steel 8 and stator bearing 2; This rotor assembly comprises rotor shaft 1, above-mentioned lamination 7, commutator 9, coil 5, piezo-resistance 10, oil baffle 16 and adjusts pad 3; This end-cap assembly comprises brush 11, end cap 13, end cap bearing 14 and stop tab 15.One end of this rotor shaft 1 is supported in the aperture of shell 4 by stator bearing 2, and it is protruding by an end face of shell 4, form the rotating shaft of micro motor, this end cap 13 is fixed on the other end of shell 4, and the other end of rotor shaft 1 places in the end cap bearing 14 that is installed on the end cap 13; This lamination 7 is fixedly installed on the rotor shaft 1, rotates to drive rotor shaft 1, and two magnet steel 8 are fixed on the inwall of shell 4 relative to one another; This coil 5 is connected with brush 11 commutations by commutator 9, and behind the logical direct current of the two-terminal of brush 11, rotor shaft 1 can rotate freely.The installation of other part of this micro motor is identical with existing micro motor with syndeton, does not repeat them here.
Claims (3)
1. a micro motor comprises a shell, stator module, rotor assembly and end-cap assembly; Described stator module comprises two magnet steel and stator bearing, and described stator bearing is installed on the aperture that is positioned on shell one end face, and two magnet steel are fixed on the inwall of shell relative to one another; Described end-cap assembly comprises brush, end cap and end cap bearing, and described end cap is fixed on the other end of shell, and described end cap bearing is installed on the end cap; Described rotor assembly comprises rotor shaft, lamination, commutator and coil, one end of described rotor shaft is supported in the aperture of shell by the stator bearing, and it is protruding by an end face of shell, the other end of rotor shaft places in the described end cap bearing, described lamination is fixedly installed on the rotor shaft, and between two magnet steel, described coil is connected with brush-commutated by commutator; It is characterized in that: described lamination comprises the iron core body, the upper edge, edge of described iron core body circumferentially evenly is provided with at least three pole piece notches, each pole piece notch all radially and circumferentially extends to form the pole piece groove to the inside of iron core body, do not communicate between each pole piece groove, the part of described iron core body between consecutive roots film trap 74 forms the iron core pole piece.
2. micro motor according to claim 1 is characterized in that: described pole piece notch is narrow notch, described pole piece notch at the width on the cross section less than the width of pole piece groove on any cross section.
3. micro motor according to claim 2 is characterized in that: the width of described pole piece groove on cross section reduces gradually from beginning to increase gradually earlier with position that the pole piece notch is accepted mutually again; Described iron core pole piece is a horn structure at the position at pole piece notch place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020668814XU CN201904708U (en) | 2010-12-20 | 2010-12-20 | Micro motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020668814XU CN201904708U (en) | 2010-12-20 | 2010-12-20 | Micro motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201904708U true CN201904708U (en) | 2011-07-20 |
Family
ID=44275300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020668814XU Expired - Lifetime CN201904708U (en) | 2010-12-20 | 2010-12-20 | Micro motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201904708U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103516061A (en) * | 2012-06-19 | 2014-01-15 | 财团法人金属工业研究发展中心 | Motor structure |
| 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 |
-
2010
- 2010-12-20 CN CN201020668814XU patent/CN201904708U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103516061A (en) * | 2012-06-19 | 2014-01-15 | 财团法人金属工业研究发展中心 | Motor structure |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Dan Yutong Inventor after: Wang Min Inventor before: Kuang Gangyao Inventor before: Wang Min |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170918 Address after: 518129, Guangdong City, Longgang province Shenzhen District Bantian Street snow like Village Ho Industrial City, the only Industrial Park Patentee after: Shenzhen true motor development Co., Ltd. Address before: 518000, Guangdong, Shenzhen City, Longgang province Buji snow like industrial city, Ho Industrial Park Patentee before: Shenzhen Weizhen Motor Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |
|
| CX01 | Expiry of patent term |