CN203537148U - Improved structure of motor - Google Patents
Improved structure of motor Download PDFInfo
- Publication number
- CN203537148U CN203537148U CN201320701843.5U CN201320701843U CN203537148U CN 203537148 U CN203537148 U CN 203537148U CN 201320701843 U CN201320701843 U CN 201320701843U CN 203537148 U CN203537148 U CN 203537148U
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- China
- Prior art keywords
- motor
- rotor
- bearing
- motor shaft
- improved structure
- 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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Abstract
The utility model discloses an improved structure of a motor, belongs to the motor, and aims to provide the motor enabling the service life of a motor bearing to be prolonged. The improved structure of the motor comprises a chassis composed of a front end cover and a back end cover, and a rotor which is supported in the chassis via a motor shaft. Permanent magnets (2) are fixed on the rotor (5) or the motor shaft (6), and electromagnets (4) are fixed on the back end cover (1). According to the utility model, by changing the direction and size of a current to adjust the polarity and magnetic force of the electromagnets, the axial force acting on the motor shaft can be offset, so that the purposes of protecting the bearing and prolonging the service life are achieved. The improved structure of the motor has the advantages of being simple in structure improvement, good in reliability, low in cost, etc.
Description
Technical field
The utility model relates to a kind of motor, relates in particular to a kind of motor and improves structure.
Background technology
As everyone knows, motor consists of the rotor that is fixed on the stator in casing and be bearing in this casing by bearing conventionally.In the course of the work, the impeller load of blower fan or pump is applied directly on motor shaft, and the axial force that blade produces acts on bearing by motor shaft, makes bearing Rapid Damage, causes the running accuracy of motor to decline; When serious, also can cause rotor and the mutual friction of stator core phase, to such an extent as to motor is scrapped.
Summary of the invention
In view of the foregoing defects the prior art has, the utility model aims to provide a kind of motor bearings motor improvement structure in useful life that extends.
To achieve these goals, the utility model by the following technical solutions: it comprises the casing that consists of front end housing and rear end cap, by motor shaft, is bearing in the rotor in this casing; On rotor or motor shaft, be fixed with permanent magnet, on rear end cap, be fixed with electromagnet.
Permanent magnet and electromagnet are circulus.
Compared with the prior art, the utility model, owing to having adopted technique scheme, has increased permanent magnet and electromagnet between rotor and casing; Therefore can by changing the sense of current and size, adjust polarity and the magnetic force size of electromagnet according to the direction of axial force that bearing bears, thus the axial force of negative function on motor shaft, the object that reach protection bearing, increases the service life.The utility model utilizes magnetic pole two like magnetic poles repel each other, the principle that there is a natural attraction between the sexes to unload bearing axial force, has that structure of modification is simple, a good reliability, low cost and other advantages.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: rear end cap 1, magnet 2, bearing 3, electromagnet 4, rotor 5, motor shaft 6, front end housing 7.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail:
As shown in Figure 1: casing is connected by screw and is formed by front end housing 7 and rear end cap 1, is fixed with stator (not shown) in this casing, the rotor 5 being fixed on motor shaft 6 is bearing in respectively on front end housing 7 and rear end cap 1 by two bearings 3; At the right-hand member of rotor 5 or in the position near motor shaft 6 right-hand members, be fixed with the permanent magnet 2 of structure in the form of a ring, the position corresponding to this permanent magnet on rear end cap is fixed with the electromagnet 4 of structure in the form of a ring.
Claims (2)
1. motor improves a structure, comprises the casing that consists of front end housing and rear end cap, by motor shaft, is bearing in the rotor in this casing; It is characterized in that: on rotor (5) or motor shaft (6), be fixed with permanent magnet (2), on rear end cap (1), be fixed with electromagnet (4).
2. motor according to claim 1 improves structure, it is characterized in that: permanent magnet (2) and electromagnet (4) are circulus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701843.5U CN203537148U (en) | 2013-11-08 | 2013-11-08 | Improved structure of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320701843.5U CN203537148U (en) | 2013-11-08 | 2013-11-08 | Improved structure of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203537148U true CN203537148U (en) | 2014-04-09 |
Family
ID=50423321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320701843.5U Expired - Fee Related CN203537148U (en) | 2013-11-08 | 2013-11-08 | Improved structure of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203537148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560610A (en) * | 2013-11-08 | 2014-02-05 | 贵州凯敏博机电科技有限公司 | Improved structure of motor |
-
2013
- 2013-11-08 CN CN201320701843.5U patent/CN203537148U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103560610A (en) * | 2013-11-08 | 2014-02-05 | 贵州凯敏博机电科技有限公司 | Improved structure of motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guizhou hanghang Technology Co. Ltd. Assignor: Guizhou Kai Minbo Electromechanical Technology Co., Ltd Contract record no.: 2014520000021 Denomination of utility model: Improved structure for a coreless motor Granted publication date: 20140409 License type: Exclusive License Record date: 20141218 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20171108 |