CN2290944Y - Voltage stabilizing, constant current generator - Google Patents
Voltage stabilizing, constant current generator Download PDFInfo
- Publication number
- CN2290944Y CN2290944Y CN 97211253 CN97211253U CN2290944Y CN 2290944 Y CN2290944 Y CN 2290944Y CN 97211253 CN97211253 CN 97211253 CN 97211253 U CN97211253 U CN 97211253U CN 2290944 Y CN2290944 Y CN 2290944Y
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- CN
- China
- Prior art keywords
- rotor
- little
- stator
- tooth
- teeth
- 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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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to a voltage stabilizing constant current generator, which comprises a casing, a stator, a rotor assembly and a rectifying voltage stabilizing circuit. The utility model has the essential structure that the rotor assembly is composed of a main shaft and at least one rotor; the rotor is arranged on the main shaft; the rotor is composed of a permanent magnet and rotor cores arranged on the two ends of the permanent magnet; the circumference of outside part of the rotor cores is evenly provided with a plurality of small teeth; the circumference of a stator punching is evenly provided with a plurality of big teeth and small teeth. Air gap flux guide changes because of the interaction of the stator and a rotor tooth slot to ensure constant current of connected load, when the rotor changes in a larger speed range.
Description
The utility model relates to a kind of pressure-stabilizing constant flow generator.
Mainly there is the shortcoming of voltage instability in the small generator that uses on the current mobility car, and it is very big that voltage just changes corresponding fluctuation with rotating speed.In order to guarantee the big occasion output of rotation speed change burning voltage, the regulating action of general using external circuit changes the exciting voltage or the exciting current of generator, thereby changes magnetic field intensity, and the excitation of this kind generator need provide with external power, and also need adjuster, and increase the copper loss of generator.
It is a kind of simple and reasonable for structure that the purpose of this utility model is to provide, and cost is low, output burning voltage, constant current, the pressure-stabilizing constant flow generator of long service life.
The purpose of this utility model is achieved by the following technical solution.This generator comprises casing, stator module, rotor assembly and regulator rectifier circuit, its structural feature is: rotor assembly is made of main shaft and at least one the rotor core group that is installed on the main shaft, the rotor core group comprises permanent magnet and puts rotor core in the permanent magnet both end sides, evenly have a plurality of little teeth on the rotor core excircle, and the half tooth distance that staggers mutually of the little tooth on the iron core of magnet both sides, evenly be provided with a plurality of canine tooths on the stator punching, at least one little tooth is arranged on each canine tooth, little tooth can be pressed rotor slot-pitch by the little tooth on the even distribution of circumference or each canine tooth and distribute, the absolute value of the difference of the little number of teeth of the little number of teeth and rotor is the number of pole-pairs of stator winding on the stator, and winding can adopt single-phase, three-phase or other numbers of phases.
The utlity model has following advantage and effect:
1, in big rotation speed change scope, generator output voltage is stablized constant.
2, when load variations, output of a generator consumes after satisfying load voluntarily, can not occur overvoltage, over-current phenomenon avoidance occurring because of load variations.
3, this generator still can move under short-circuit condition, and burnout phenomenon, long service life do not take place.
Fig. 1 cuts open structural representation for office of the present utility model;
Fig. 2 is the rotor punching structural representation;
Fig. 3 is the stator laminating structure schematic diagram.
The accompanying drawings preferred embodiment of the utility model.As shown in the figure, the utility model comprises casing 2, end cap 1, stator module 3, bearing 7 and rotor assembly, rotor assembly is made of main shaft 6 and the rotor core group that is installed on the main shaft, the rotor core group comprises annular permanent magnet 5, the rotor core of putting in this permanent magnet both end sides 4 reaches jack panel 8 fully, rotor core available silicon steel disc or silicon steel are made, evenly have 50 little teeth on the rotor core excircle, be positioned at rotor core about the permanent magnet little half tooth tooth pitch that staggers mutually, the rotor core group, can increase to two according to designing requirement, three or more, permanent magnet adopts axial excitation, evenly is provided with 12 canine tooths on the stator punching, is evenly equipped with 4 little teeth on each canine tooth, little tooth tooth pitch is identical with rotor slot-pitch, also can evenly distribute by its circumference, stator adopts three-phase, and number of pole-pairs is 2 winding.Adopt said stator and rotor structure, when rotor changes in the big range of speeds, because stator and rotor teeth groove interact, cause that air-gap permeance changes, then in stator winding, induce voltage, its output current also is stable at a steady state value when connecting load, utilizes circuit that it is carried out rectifying and voltage-stabilizing and handles, and can obtain the direct current of burning voltage and constant current.
Claims (1)
1, a kind of pressure-stabilizing constant flow generator, comprise casing, stator module, rotor assembly and regulator rectifier circuit, it is characterized in that: rotor assembly is made of main shaft and at least one the rotor core group that is installed on the main shaft, the rotor core group comprises permanent magnet and puts rotor core in the permanent magnet both end sides, evenly have a plurality of little teeth on the rotor core excircle, and the half tooth distance that staggers mutually of the little tooth on the iron core of magnet both sides, evenly be provided with a plurality of canine tooths on the stator punching, at least one little tooth is arranged on each canine tooth, little tooth can be pressed rotor slot-pitch by the little tooth on the even distribution of circumference or each canine tooth and distribute, the absolute value of the difference of the little number of teeth of the little number of teeth and rotor is the number of pole-pairs of stator winding on the stator, and winding can adopt single-phase, three-phase or other numbers of phases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97211253 CN2290944Y (en) | 1997-03-13 | 1997-03-13 | Voltage stabilizing, constant current generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97211253 CN2290944Y (en) | 1997-03-13 | 1997-03-13 | Voltage stabilizing, constant current generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2290944Y true CN2290944Y (en) | 1998-09-09 |
Family
ID=33929848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97211253 Expired - Fee Related CN2290944Y (en) | 1997-03-13 | 1997-03-13 | Voltage stabilizing, constant current generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2290944Y (en) |
-
1997
- 1997-03-13 CN CN 97211253 patent/CN2290944Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |