CN2879509Y - Micro power consumption motor - Google Patents
Micro power consumption motor Download PDFInfo
- Publication number
- CN2879509Y CN2879509Y CNU2006200559562U CN200620055956U CN2879509Y CN 2879509 Y CN2879509 Y CN 2879509Y CN U2006200559562 U CNU2006200559562 U CN U2006200559562U CN 200620055956 U CN200620055956 U CN 200620055956U CN 2879509 Y CN2879509 Y CN 2879509Y
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- CN
- China
- Prior art keywords
- motor
- power consumption
- stator
- rotor
- micro power
- 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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- Control Of Motors That Do Not Use Commutators (AREA)
- Brushless Motors (AREA)
Abstract
The present utility model comprises a electromotor consisting of bearings, a rotary shaft, a housing, a rotor and a stator, which is characterized in that the electromotor rotor is equipped with a multipole permanent magnet, the stator is equipped with three groups of windings exhibiting certain angle to each other, and an electric circuit formed by a semiconductor transistor and a resistance-capacity network is also provided. When the motor is connected to a power supply, the motor starts and rotates according to a defined direction with a very weak current, by a associated action of the motor and the electric circuit. Since the electromotor in accordance with the present utility model is brushless, electric-sparkleless and is of micro power consumption, it is capable of utilizing a weak light solar cell or a low capacity battery as an electrical source, and has a long service time, a small size and is of micro power consumption, suitable for application in a micro power consumption (mw level) situation.
Description
Technical field
The utility model relates to a kind of micromotor, particularly a kind of little power consumption motor that can be used for low light level solar cell.
Background technology
The little power consumption motor of a kind of low-voltage in the prior art is to make stator by one or two coil, makes rotor with permanent magnet, and forms with the transistor oscillating circuit.But the direction of rotation of this kind motor is uncertain, when motor starts at every turn its to turn to be at random, may be to clockwise rotate, also may be to rotate counterclockwise, this brings great inconvenience when just giving actual the use.According to the operation principle of brushless DC motor, make the permanent magnet motor of stator with two coils, make the rotor can directed rotation, must be equipped with can the detection rotor position transducer, and the operating current of this transducer also needs several milliamperes usually.
Summary of the invention
The purpose of this utility model provides little power consumption motor of a kind of brushless, no transducer, no electric spark, long, suitable various low energy consumption occasions uses of life-span.The utility model is realized in such a way: three groups of coils that angle is different are arranged on motor stator, their electric angle under magnetic field differ be ± 120 the degree, also can be 180 the degree or ± 90 the degree; The rotor of forming motor by multipolar permanent magnet; Form electronic circuit by semiconductor transistor and a resistance-capacitance network, three groups of coils of motor stator are connected with electronic circuit, and power supply is then from the faint electric energy of solar cell or dry cell.When energized, electronic circuit produces self-oscillation, and transistor is by the specific time sequence conducting, and the electric current and the epitrochanterian multipole magnetic field that flow through coil interact, and produce torque, and motor is started by predetermined direction, and drive the load rotation.Because operating current is very small, thereby the utility model can low light level solar cell be power supply, can low-capacity batteries be power supply also.In electronic circuit, only need to use three transistors, or only need use two transistors (as removing the T in the dotted line among Fig. 2
3), and corresponding change resistance-capacitance network.
The utlity model has advantages such as brushless, no electric spark produce, the life-span is long, small product size is little, power consumption is low, be suitable for using under low-power consumption (mw level) occasion.
Below in conjunction with accompanying drawing enforcement of the present utility model is described in further detail:
Description of drawings
Fig. 1 is an electric motor structure schematic diagram of the present utility model;
Fig. 2 is the utility model electronic circuit schematic block diagram.
Among the figure:
1, rotating shaft
2, bearing
3, shell
4, multipole p-m rotor
5, stator
6, bearing
7, the resistance-capacitance network in the electronic circuit
T
1, T
2, T
3: transistor
L
1, L
2, L
3: motor winding
Vcc, Vss: external power supply the two poles of the earth
Embodiment
As depicted in figs. 1 and 2, a kind of little power consumption motor, comprise a stator 5, p-m rotor 4, shell 3, rotating shaft 1 and a bearing 2, it is characterized in that having on the stator 5 three groups of coils of certain angle each other, each organize the electric angle of coil under magnetic field differ be ± 120 the degree, also can be ± 180 the degree or ± 90 the degree, rotor 4 is multipole p-m rotors, the direction of magnetization of its permanent magnet is axially, produces axial multipole magnetic field in motor.Also have a electronic circuit to be connected with stator coil with 3 or 2 semiconductor transistors and corresponding resistance-capacitance network composition.
Claims (5)
1, a kind of little power consumption motor, comprise rotating shaft (1), bearing (2), shell (3), rotor (4), stator (5), it is characterized in that rotor (4) is a multipolar permanent magnet, three groups of coils of certain angle are each other arranged on the stator (5), also have a semiconductor transistor and the electronic circuit of resistance-capacitance network composition to be connected with coil on the stator.
2, motor according to claim 1 is characterized in that the electric angle of three coils under magnetic field of described stator differs ± 120 degree.
3, motor according to claim 1, the electric angle of three coils under magnetic field that it is characterized in that described stator differ 180 degree or ± 90 degree.
4, motor according to claim 1 is characterized in that electronic circuit is made of three transistors and some resistance-capacitance networks.
5, motor according to claim 1 is characterized in that electronic circuit is made of two transistors and some resistance-capacitance networks at least.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200559562U CN2879509Y (en) | 2006-03-09 | 2006-03-09 | Micro power consumption motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200559562U CN2879509Y (en) | 2006-03-09 | 2006-03-09 | Micro power consumption motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2879509Y true CN2879509Y (en) | 2007-03-14 |
Family
ID=37861927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200559562U Expired - Fee Related CN2879509Y (en) | 2006-03-09 | 2006-03-09 | Micro power consumption motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2879509Y (en) |
-
2006
- 2006-03-09 CN CNU2006200559562U patent/CN2879509Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070314 Termination date: 20150309 |
|
| EXPY | Termination of patent right or utility model |