CN201550003U - Micro motor - Google Patents
Micro motor Download PDFInfo
- Publication number
- CN201550003U CN201550003U CN2009202183603U CN200920218360U CN201550003U CN 201550003 U CN201550003 U CN 201550003U CN 2009202183603 U CN2009202183603 U CN 2009202183603U CN 200920218360 U CN200920218360 U CN 200920218360U CN 201550003 U CN201550003 U CN 201550003U
- Authority
- CN
- China
- Prior art keywords
- shell
- magnetic steel
- assembly
- end cover
- bearing
- 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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Abstract
The utility model discloses a micro motor which comprises a shell. A stator assembly, a rotor assembly and an end cover assembly are arranged in the shell; the stator assembly is composed of two sheets of magnetic steel and a stator bearing; the rotor assembly is composed of an iron core sheet, a reverser, a coil, a pressure-sensitive resistor, a rotor rotating shaft, an oil baffle and an adjusting gasket; the end cover assembly is composed of an electric brush, an end cover, an end cover bearing and a backstop sheet; the reverse is matched with the electric brush, one end of the rotor rotating shaft is supported in an aperture in the shell by the stator bearing and penetrates out of one end of the shell, the end cover assembly is fixed at the other end of the shell, and the other end of the rotor rotating shaft is arranged in the end cover bearing; the magnetic steel adopts a tile-shaped structure, the middle part of the magnetic steel is thick, and the two sides of the magnetic steel are thin. The magnetic steel in the micro motor adopts the tile-shaped structure, the middle part of the magnetic steel is thick, and the two sides of the magnetic steel are thin; therefore, an air gap in the middle of a magnetic field is small, the air gap at the rim is large, and a sinusoid magnetic field waveform is formed. The advantages of the micro motor are as follows: 1. the magnetic tension of the motor is reduced; 2. the starting voltage of the motor is lowered, and the starting performance of the motor is improved; 3. vibration is lessened and noise is lowered.
Description
Technical field
The utility model relates to a kind of 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 magnet steel is unreasonable, the magnetic pull that causes producing motor is big, starting voltage height, problems such as startability difference.
The utility model content
The purpose of this utility model is to solve the problems of the prior art, provides a kind of starting performance good, and the little micro motor of noise.
The technical solution of the utility model is: a kind of micro motor, comprise a shell, and be provided with the stator module that constitutes by two magnet steel and stator bearing in the described shell; The rotor assembly of forming by lamination, commutator, coil, piezo-resistance, rotor shaft, oil baffle, adjustment pad; And the end-cap assembly of forming by brush, end cap, end cap bearing, stop tab; Commutator cooperates with brush, and an end of rotor shaft is supported in the aperture in the shell by the stator bearing, and passes an end of shell, and the other end of shell is fixed with end-cap assembly, and the other end of rotor shaft places in the end cap bearing; Described magnet steel is the thin tile structure in thick middle both sides.
Compared with prior art, the magnet steel in the utility model motor makes that for the thin tile structure in thick middle both sides the magnetic field intermediate air gap is little, and the edge air gap is big, forms the sinusoid field waveform, and She Ji advantage is like this: 1. the magnetic pull that reduces motor; 2. reduce the starting voltage of motor, improve the startability of motor; 3. it is bad to reduce vibration and noise.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a magnet steel structural representation in the enclosure.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model motor comprises a shell 4, is provided with the stator module that is made of two magnet steel 7 and stator bearing 2 in the shell 4; By lamination 6, commutator 8, coil 5, piezo-resistance 9, oil baffle 12, adjust the rotor assembly that pad 3 and rotor shaft 1 are formed; And the end-cap assembly of forming by brush 10, end cap 11, end cap bearing 13 and stop tab 14; Commutator 8 cooperates with brush 10, one end of rotor shaft 1 is supported in the aperture in the shell 4 by stator bearing 2, and pass an end of shell 4, the other end of shell 4 is fixed with end cap 11, the other end of rotor shaft 1 places in the end cap bearing 13, behind the logical direct current of brush, rotor shaft can rotate freely; As shown in Figure 2, described magnet steel 7 is the thin tile structure in thick middle both sides, and the purpose that magnet steel is designed to this structure is: make the magnetic field intermediate air gap little, the edge air gap is big, forms the sinusoid field waveform, thereby reaches the magnetic pull that reduces motor, reduce starting voltage, improve the purpose of startability.
Claims (1)
1. a micro motor comprises a shell, it is characterized in that: be provided with the stator module that is made of two magnet steel and stator bearing in the described shell; The rotor assembly of forming by lamination, commutator, coil, piezo-resistance, rotor shaft, oil baffle, adjustment pad; And the end-cap assembly of forming by brush, end cap, end cap bearing, stop tab; Commutator cooperates with brush, and an end of rotor shaft is supported in the aperture in the shell by the stator bearing, and passes an end of shell, and the other end of shell is fixed with end-cap assembly, and the other end of rotor shaft places in the end cap bearing; Described magnet steel is the thin tile structure in thick middle both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202183603U CN201550003U (en) | 2009-10-14 | 2009-10-14 | Micro motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202183603U CN201550003U (en) | 2009-10-14 | 2009-10-14 | Micro motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201550003U true CN201550003U (en) | 2010-08-11 |
Family
ID=42605186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202183603U Expired - Lifetime CN201550003U (en) | 2009-10-14 | 2009-10-14 | Micro motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201550003U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891414A (en) * | 2011-07-18 | 2013-01-23 | 德昌电机(深圳)有限公司 | Commutator component and brush motor |
| CN104753224A (en) * | 2014-07-28 | 2015-07-01 | 李莹 | Aluminum die-cast motor cover |
| CN108390480A (en) * | 2017-10-09 | 2018-08-10 | 深圳市积达电机有限公司 | A kind of miniature Low emissivity d.c. motor |
-
2009
- 2009-10-14 CN CN2009202183603U patent/CN201550003U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102891414A (en) * | 2011-07-18 | 2013-01-23 | 德昌电机(深圳)有限公司 | Commutator component and brush motor |
| CN102891414B (en) * | 2011-07-18 | 2016-04-13 | 德昌电机(深圳)有限公司 | Commutator assembly and brush motor |
| CN104753224A (en) * | 2014-07-28 | 2015-07-01 | 李莹 | Aluminum die-cast motor cover |
| CN108390480A (en) * | 2017-10-09 | 2018-08-10 | 深圳市积达电机有限公司 | A kind of miniature Low emissivity d.c. motor |
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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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Dan Yutong Inventor after: Wang Min Inventor before: Kuang Gangyao Inventor before: Wang Min |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170915 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. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |