CN2454982Y - Permanent-magentic brush-less Dc momental motor - Google Patents
Permanent-magentic brush-less Dc momental motor Download PDFInfo
- Publication number
- CN2454982Y CN2454982Y CN 00261864 CN00261864U CN2454982Y CN 2454982 Y CN2454982 Y CN 2454982Y CN 00261864 CN00261864 CN 00261864 CN 00261864 U CN00261864 U CN 00261864U CN 2454982 Y CN2454982 Y CN 2454982Y
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- Prior art keywords
- utility
- model
- small
- silicon steel
- permanent
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Abstract
The utility model relates to a permanent-magentic brush-less DC momental motor, which belongs to the equipment technical field of power supply systems. The utility model is mainly composed of a rotor casing, a magnetic steel body, a main shaft, a stator silicon steel sheet, and an end cover. The utility model is characterized in that the surface of the casing is provided with notches along a radial direction; two ends of the magnetic steel body is provided with a magnetic conductive ring; the stator silicon steel sheet is made into a structure with a big and a small poles. The utility model has the advantages of simple structure, low cost, small size, light weight, long service life, small starting current, small working current, small output torque, and high utilization rate of permanent magnetic field; the current is only 50 percents of others, the energy conversion efficiency can be more than 80 percents, and the utility model is suitable for producing by mechanization.
Description
The utility model relates to a kind of DC permanent-magnetic brushless torque motor, belongs to the electric power supply system equipment technical field.
Before the utility model was made, in prior art, brshless DC motor normally adopted magnet steel to be attached in the rotor case, and main shaft is pressed into stator, and stator winding embeds in the stator silicon steel plate, by the bearing supporting spindle, end cap is installed on the rotor case.Stator silicon steel plate comparatively generally adopts three-phase cross-slot structure (48 grooves or 36 grooves), is driven by electronic commutation.Its weak point is: 1, starting current is big; 2, electromagnetism leaks seriously; 3, energy conversion efficiency is low about about 75%, and is very difficult as increasing capacity motor.
The purpose of this utility model is to overcome above-mentioned weak point, thereby provides a kind of simple in structure, and starting current is little, and output torque is big, permanent magnetic field utilance height, the DC permanent-magnetic brushless torque motor that energy conversion efficiency is high.
Main solution of the present utility model is such realization: it adopts 2 tilings of magnet steel body to stick in the rotor case 1, and main shaft 5 is pressed into stator silicon steel plate 6, and stator winding 7 embeds in the stator silicon steel plate 6, by bearing 4 supportings, end cap 3 is installed on the rotor case 1.It is characterized in that housing 1 surface radially equalization be shaped on notch; Magnetic guiding loop is equipped with at magnet steel body 2 two ends; Stator silicon steel plate 6 is made as big or small utmost point formula structure, and the big utmost point equals N and subtracts C, and little utmost point C respectively is 2 symmetrical distributions.
Description of drawings:
Fig. 1 is the utility model structural front view:
Fig. 2 is the utility model rotor case structure chart:
Fig. 3 is the utility model stator silicon steel plate structure chart:
Embodiment during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
The utility model magnet steel body 2 adopts neodymium iron boron or samarium-cobalt material to make.Rotor case 1 adopts aluminium alloy or soft magnetic material to make.Magnet steel body 2 is a thin-walled, rectangle compound of sand, clay, etc. for making earthenware body.Narrow notch is offered on rotor case 1 surface unshakable in one's determination radially equalization.The metal magnetic conducting ring is equipped with at magnet steel body 2 two ends, and magnet steel body 2 is arranged as a positive reciprocal cross and sticks in the rotor case 1 interior garden groove for tiling.Main shaft 5 is pressed into the silicon steel sheet 6 of stator, stator winding 7 embeds in the core slots of stator silicon steel plate 6, and lead-out wire 8 passes from the centre bore of axle, and bearing 4 is installed in bearing pedestal 3 internal support main shafts 5, the rotor case 1 of then internal stator of above-mentioned shaping being packed into is installed end cap 3 on the rotor case 1.Between stator, rotor, leave air gap 9.Be shaped on stator core slot on the stator silicon steel plate 6, stator silicon steel plate 6 is designed to big or small utmost point formula structure, setting the total number of poles of son is N, as Electromagnetic Design is single-phase or two phase structure, large number of poles is that N subtracts C, and can be divided exactly by 4, the little utmost point C of side 2 is symmetrically distributed, and can be designed to the motor of heterogeneous formula winding construction according to this design.Winding adopts whole square laminated type, utmost point cabinet, and span is one, one very just around, a very back-roll, and a wire-wound becomes, and two utmost points exchange and are commutation, flux concentrating like this, utilance improves greatly.Add a little utmost point from beginning to end at every phase winding, be referred to as to start the afterburning utmost point, play the afterburning effect of starting.The polarity of all little utmost points must be opposite with contiguous main pole.
The utility model controller is the structure according to motor, adopts electronic commutation, sends driving pulse by pulsqe distributor, removes drive motors for the circuit for power conversion of being made up of power device.
Compared with the prior art the utility model has the following advantages: 1, simple in structure, be fit to mechanization Produce, cost is lower; 2, stator silicon steel plate adopts big or small utmost point formula structure, can help motor to start rapidly Eliminate the dead angle, and enough starting torques are arranged; (starting current is slightly larger than work greatly to reduce starting current Electric current), increase work moment during running, electric current only is their 50%; 3, volume is little, in light weight, Life-span is long; 4, permanent magnetic field utilization rate height, energy conversion efficiency can reach more than 80%; Use this skill Art can be made various be applicable to worker, agricultural production, traffic, Aeronautics and Astronautics, explosion-proof and dangerous material operations The place, the needed motor in underground mining field.
Claims (1)
1, a kind of DC permanent-magnetic brushless torque motor, adopt magnet steel body (2) tiling to stick in the rotor case (1), main shaft (5) is pressed into stator silicon steel plate (6), stator winding (7) embeds in the stator silicon steel plate (6), support by bearing (4), rotor case (1) is gone up end cap (3) is installed, and it is characterized in that:
1. housing (1) surface radially equalization be shaped on notch;
2. magnetic guiding loop is equipped with at magnet steel body (2) two ends;
3. stator silicon steel plate (6) is made as big or small utmost point formula structure, and the big utmost point equals N and subtracts C, little utmost point C
Respectively be 2 symmetrical distributions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261864 CN2454982Y (en) | 2000-12-06 | 2000-12-06 | Permanent-magentic brush-less Dc momental motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00261864 CN2454982Y (en) | 2000-12-06 | 2000-12-06 | Permanent-magentic brush-less Dc momental motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2454982Y true CN2454982Y (en) | 2001-10-17 |
Family
ID=33617266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00261864 Expired - Fee Related CN2454982Y (en) | 2000-12-06 | 2000-12-06 | Permanent-magentic brush-less Dc momental motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2454982Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013828B (en) * | 2006-09-12 | 2011-01-12 | 石为民 | Method for fabricating highly effective generator and highly effective generator |
-
2000
- 2000-12-06 CN CN 00261864 patent/CN2454982Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101013828B (en) * | 2006-09-12 | 2011-01-12 | 石为民 | Method for fabricating highly effective generator and highly effective generator |
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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 |