CN203261218U - Strong permanent magnet brushless motor - Google Patents
Strong permanent magnet brushless motor Download PDFInfo
- Publication number
- CN203261218U CN203261218U CN 201320187920 CN201320187920U CN203261218U CN 203261218 U CN203261218 U CN 203261218U CN 201320187920 CN201320187920 CN 201320187920 CN 201320187920 U CN201320187920 U CN 201320187920U CN 203261218 U CN203261218 U CN 203261218U
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- stator
- permanent magnet
- rotor
- magnetic force
- electromagnetism
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Abstract
The utility model relates to a motor and particularly discloses a strong permanent magnet brushless motor. The strong permanent magnet brushless motor comprises a stator and a rotor which are arranged in a casing, wherein the stator is provided with a stator permanent magnet and stator electromagnets, the rotor is provided with a plurality of rotor permanent magnets, magnetic poles of adjacent rotor permanent magnets are opposite, the magnetic force of the stator permanent magnet is the same with that of each rotor permanent magnet, the magnitude of magnetic force generated by the stator electromagnets after electrification is greater than or equal to the magnitude of magnetic force generated by the stator permanent magnet or the rotor permanent magnets, and polarities of two magnetic poles generated by the stator electromagnets after electrification are opposite to the polarity of the adjacent stator permanent magnet and are the same with the polarity of the rotor permanent magnets. One end of the rotor is provided with an induced magnet, and the inner side of the casing is provided with a Hall sensor. The strong permanent magnet brushless motor has the advantages that the structure is simple, the manufacturing cost is low, the motor is beneficial to machinery manufacture and repair, the energy conversion rate is high, the heat radiation effect is good, the load current is small, and the energy saving performance is improved from original 40-50% to 50-60%.
Description
(1) technical field
The utility model relates to a kind of motor, particularly a kind of permanent strong magnetic brushless electric machine.
(2) background technology
At present, indispensable role is being played the part of in the use of internal combustion engine in social development, but in today that energy growing tension and environment worsen increasingly, and people are more and more toward environmental protection, regeneration, energy-conservation motor direction development, such as electric motor car, electric automobile etc.And existing electric motor structure is complicated, and manufacturing cost is high.The stator that existing motor has and rotor all are electromagnetism, and electric energy is converted into first magnetic energy in the energy conversion process, and magnetic energy is converted into mechanical energy again, and efficient is lower; Another kind of motor is that one of them of stator, rotor is permanent magnetism, another is electromagnetism, its principle is that hot-wire coil cuts off the power supply when forwarding the equilbrium position to, because energising was done work again after inertia forwarded commutator to, so gyrate, rotor is because inertia turns over the commutator gap and enters next acting process, and inertia does not wherein do work, so efficient is also very low.In order to overcome defects, CN201020175306.8 has disclosed a kind of permanent magnetic motor, it comprises engine housing, stator and rotor have been installed in the engine housing, rotor center is provided with central shaft, wherein stator comprises stator permanent magnet and the inboard stator electromagnetism in the outside, rotor is provided with the rotor permanent magnet that a plurality of magnetic force equate, the magnetic pole of adjacent rotor permanent magnetism is opposite, the magnetic force equal and opposite in direction of stator permanent magnet and each rotor permanent magnet, the magnetic force that produces after the energising of stator electromagnetism is more than or equal to the magnetic force of stator permanent magnet or rotor permanent magnet; Two pole polarity that produce after the stator electromagnetism energising respectively pole polarity with adjacent stator permanent magnet and rotor permanent magnet are identical, the stator electromagnetism contact switch interior with being installed in engine housing is connected, electromagnetism energising copper sheet is installed in the relevant position of rotor, a reverse voltage copper sheet that is connected with the stator electromagnetism is installed in engine housing.This permanent magnetic motor is simple in structure, cost of manufacture is low, is conducive to machinery production and maintenance, and energy transformation ratio is high, can save energy 40～50%, but its radiating effect is bad, and load current is excessive, and energy-saving efficiency also has the space of further improving.
(3) summary of the invention
The utility model provides a kind of good heat dissipation effect, higher, the more energy-conservation permanent strong magnetic brushless electric machine of energy transformation ratio in order to remedy the defective of prior art.
The utility model is achieved by the following technical solution:
A kind of permanent strong magnetic brushless electric machine, comprise engine housing, stator and rotor are installed in the engine housing, rotor center is provided with central shaft, the central shaft two ends are equipped with bearing, wherein stator comprises stator permanent magnet and the inboard stator electromagnetism in the outside, rotor is provided with the rotor permanent magnet that a plurality of magnetic force equate, the magnetic pole of adjacent rotor permanent magnetism is opposite, the magnetic force equal and opposite in direction of stator permanent magnet and each rotor permanent magnet, the magnetic force size that produces after the stator electromagnetism energising is characterized in that more than or equal to the magnetic force of stator permanent magnet or rotor permanent magnet: the pole polarity of two pole polarity that produce after the energising of stator electromagnetism and adjacent stator permanent magnet is different, and is identical with the pole polarity of rotor permanent magnet.
Preferred version is further, is provided with induced magnet at an end of rotor, and engine housing is inboard to be provided with hall sensor with the corresponding place of induced magnet.
A kind of permanent strong magnetic brushless electric machine, comprise engine housing, stator and rotor are installed in the engine housing, stator center is provided with central shaft, the central shaft two ends are equipped with bearing, it is characterized in that, wherein stator comprises inboard stator permanent magnet and the stator electromagnetism in the outside, rotor is provided with the rotor permanent magnet that a plurality of magnetic force equate, the magnetic pole of adjacent rotor permanent magnetism is opposite, the magnetic force equal and opposite in direction of stator permanent magnet and each rotor permanent magnet, the magnetic force size that produces after the energising of stator electromagnetism is more than or equal to the magnetic force of stator permanent magnet or rotor permanent magnet.
The pole polarity of two pole polarity that produce after the stator electromagnetism energising and adjacent stator permanent magnet is different, and is identical with the pole polarity of rotor permanent magnet.
End at stator is provided with induced magnet, and engine housing is inboard to be provided with hall sensor with the corresponding place of induced magnet.
The beneficial effects of the utility model are: this permanent strong magnetic brushless motor structure is simple, cost of manufacture is low, be conducive to machinery production and maintenance, and power conversion is high, radiating effect is better, load current is little, energy-conservationly brings up to energy-conservationly 50%～60% by original 40%～50%, is convenient to apply on a large scale.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing 1 is the cross-sectional view of a kind of embodiment of the present utility model;
Accompanying drawing 2 is the operation principle schematic diagram of the part of the utility model inactive state;
Accompanying drawing 3 is the operation principle schematic diagram of the part of the utility model motion state;
Accompanying drawing 4 is the sectional view of the utility model inactive state;
Accompanying drawing 5 is the sectional view of the utility model motion state;
Accompanying drawing 6 is the operation principle schematic diagram of the integral body of the utility model inactive state;
Accompanying drawing 7 is the operation principle schematic diagram of the integral body of the utility model motion state;
Accompanying drawing 8 is the cross-sectional view of another kind of execution mode;
Among the figure, 1 engine housing, 2 stators, 21 stator permanent magnets, 22 stator electromagnetism, 3 rotors, 31 rotor permanent magnets, 4 central shafts, 5 bearings, 6 induced magnets, 7 hall sensors, 8 adjacent side rotor permanent magnets.
(5) embodiment
Accompanying drawing 1 to accompanying drawing 7 is the first specific embodiment of the present utility model.This kind permanent strong magnetic brushless electric machine, comprise engine housing 1, stator 2 and rotor 3 are installed in the engine housing 1, rotor 3 centers are provided with central shaft 4, central shaft 4 two ends are equipped with bearing 5, wherein stator 2 comprises stator permanent magnet 21 and the inboard stator electromagnetism 22 in the outside, rotor 3 is provided with the rotor permanent magnet 31 that a plurality of magnetic force equate, the magnetic pole of adjacent rotor permanent magnetism 31 is opposite, the magnetic force equal and opposite in direction of stator permanent magnet 21 and each rotor permanent magnet 31, the magnetic force size that produces after 22 energisings of stator electromagnetism is more than or equal to the magnetic force of stator permanent magnet 21 or rotor permanent magnet 31, the pole polarity of two pole polarity that produce after stator electromagnetism 22 energising and adjacent stator permanent magnet 21 is different, and is identical with the pole polarity of rotor permanent magnet 31.End at rotor 3 is provided with induced magnet 6, and the inboard of engine housing 1 and induced magnet 6 corresponding places are provided with hall sensor 7.
The course of work is as follows: inhale mutually according to heteropole, the principle of homopolar-repulsion, the utility model is in such as accompanying drawing 2 when initial, inactive state shown in the accompanying drawing 4, take the S utmost point of stator permanent magnet 21 towards central shaft 4 as example, this moment, stator permanent magnet 21 was inhaled mutually with N utmost point adjacent side rotor permanent magnet 8 outwardly, hall sensor 7 just in time can be sensed the S utmost point of induced magnet 6, at this moment stator electromagnetism 22 energisings, the pole polarity with adjacent stator permanent magnet 21 is different in two pole polarity that produce, another pole polarity with rotor permanent magnet 31 is identical, the N utmost point namely, the inboard S utmost point, meanwhile adjacent side rotor permanent magnet 8 is inhaled mutually with stator electromagnetism 22 heteropoles, rotor 3 just can rotate, and the direction of rotation of rotor 3 can be taken back a little or be taken over by the position of stator electromagnetism 32 and be decided; Just in time stator electromagnetism 22 outages when rotor 3 rotates to the position shown in accompanying drawing 3, accompanying drawing 5, because stator permanent magnet 21 plays a role with rotor permanent magnet 31 homopolar-repulsions, make rotor 3 go back to position shown in accompanying drawing 2, accompanying drawing 4 according to former direction of rotation, so circulation is just rotor 3 rotations are got up.
In whole acting process, are 22 actings of stator electromagnetism when turning to accompanying drawing 3 by accompanying drawing 2, be stator permanent magnet 21 actings when turning to accompanying drawing 2 by accompanying drawing 3, whole process stator electromagnetism 22 and stator permanent magnet 21 are respectively done half merit.Stator permanent magnet 21 actings are extra acting, do not consume any energy, the advanced part of stator electromagnetism 22 actings is that the pole polarity that stator electromagnetism 22 produces had both attracted stator permanent magnet 21, cut off again the attraction between stator permanent magnet 21 and the adjacent side rotor permanent magnet 8, and very high mechanical efficiency arranged, add the extra acting such as accompanying drawing 3, accompanying drawing 5, by experiment, energy-saving effect brings up to energy-conservation 50%～60% by original 40%～50%.
Another execution mode is, as shown in Figure 8, the utility model belongs to external rotor electric machine, comprise engine housing 1, stator 2 and rotor 3 are installed in the engine housing 1, stator 2 centers are provided with central shaft 4, central shaft 4 two ends are equipped with bearing 5, stator 2 comprises inboard stator permanent magnet 21 and the stator electromagnetism 22 in the outside, rotor 3 is provided with the rotor permanent magnet 31 that a plurality of magnetic force equate, the magnetic pole of adjacent rotor permanent magnetism 31 is opposite, the magnetic force equal and opposite in direction of stator permanent magnet 21 and each rotor permanent magnet 31, and the magnetic force size that produces after 22 energisings of stator electromagnetism is more than or equal to the magnetic force of stator permanent magnet 21 or rotor permanent magnet 31.The pole polarity of two pole polarity that produce after stator electromagnetism 22 energising and adjacent stator permanent magnet 21 is different, and is identical with the pole polarity of rotor permanent magnet 31.End at stator 2 is provided with induced magnet 6, and engine housing 1 inboard is provided with hall sensor 7 with induced magnet 6 corresponding places.
For the permanent strong magnetic brushless electric machine of this kind external-rotor-type, except stator 1 and rotor 2 with the first execution mode have changed the position, operation principle and process are identical, do not repeat them here.
Claims (5)
1. permanent strong magnetic brushless electric machine, comprise engine housing (1), stator (2) and rotor (3) are installed in the engine housing (1), rotor (3) center is provided with central shaft (4), central shaft (4) two ends are equipped with bearing (5), wherein stator (2) comprises stator permanent magnet (21) and the inboard stator electromagnetism (22) in the outside, rotor (3) is provided with the rotor permanent magnet (31) that a plurality of magnetic force equate, the magnetic pole of adjacent rotor permanent magnetism (31) is opposite, the magnetic force equal and opposite in direction of stator permanent magnet (21) and each rotor permanent magnet (31), the magnetic force size that produces after stator electromagnetism (22) energising is more than or equal to the magnetic force of stator permanent magnet (21) or rotor permanent magnet (31), it is characterized in that: the pole polarity of two pole polarity that produce after stator electromagnetism (22) energising and adjacent stator permanent magnet (21) is different, and is identical with the pole polarity of rotor permanent magnet (31).
2. permanent strong magnetic brushless electric machine according to claim 1 is characterized in that, is provided with induced magnet (6) at an end of rotor (3), and engine housing (1) is inboard to be provided with hall sensor (7) with the corresponding place of induced magnet (6).
3. permanent strong magnetic brushless electric machine, comprise engine housing (1), stator (2) and rotor (3) are installed in the engine housing (1), stator (2) center is provided with central shaft (4), central shaft (4) two ends are equipped with bearing (5), it is characterized in that, wherein stator (2) comprises inboard stator permanent magnet (21) and the stator electromagnetism (22) in the outside, rotor (3) is provided with the rotor permanent magnet (31) that a plurality of magnetic force equate, the magnetic pole of adjacent rotor permanent magnetism (31) is opposite, the magnetic force equal and opposite in direction of stator permanent magnet (21) and each rotor permanent magnet (31), the magnetic force size that produces after stator electromagnetism (22) energising is more than or equal to the magnetic force of stator permanent magnet (21) or rotor permanent magnet (31).
4. permanent strong magnetic brushless electric machine according to claim 3 is characterized in that: the pole polarity of two pole polarity that produce after stator electromagnetism (22) energising and adjacent stator permanent magnet (21) is different, and is identical with the pole polarity of rotor permanent magnet (31).
5. permanent strong magnetic brushless electric machine according to claim 4 is characterized in that, is provided with induced magnet (6) at an end of stator (2), and engine housing (1) is inboard to be provided with hall sensor (7) with the corresponding place of induced magnet (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187920 CN203261218U (en) | 2013-04-16 | 2013-04-16 | Strong permanent magnet brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320187920 CN203261218U (en) | 2013-04-16 | 2013-04-16 | Strong permanent magnet brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203261218U true CN203261218U (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320187920 Expired - Fee Related CN203261218U (en) | 2013-04-16 | 2013-04-16 | Strong permanent magnet brushless motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203261218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034342A (en) * | 2020-09-07 | 2020-12-04 | 江阴富茂电机技术有限公司 | Permanent magnet synchronous motor magnetic pole position detection device and detection method |
-
2013
- 2013-04-16 CN CN 201320187920 patent/CN203261218U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112034342A (en) * | 2020-09-07 | 2020-12-04 | 江阴富茂电机技术有限公司 | Permanent magnet synchronous motor magnetic pole position detection device and detection method |
| CN112034342B (en) * | 2020-09-07 | 2023-06-23 | 江阴富茂电机技术有限公司 | Device and method for detecting magnetic pole position of permanent magnet synchronous motor |
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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: 20131030 Termination date: 20160416 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |