CN203301247U - Commutatorless permanent magnet brushless DC motor - Google Patents
Commutatorless permanent magnet brushless DC motor Download PDFInfo
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- CN203301247U CN203301247U CN2013202427375U CN201320242737U CN203301247U CN 203301247 U CN203301247 U CN 203301247U CN 2013202427375 U CN2013202427375 U CN 2013202427375U CN 201320242737 U CN201320242737 U CN 201320242737U CN 203301247 U CN203301247 U CN 203301247U
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Abstract
The utility model discloses a commutatorless permanent magnet brushless DC motor. The object of the utility model is to provide a commutatorless permanent magnet brushless DC motor which comprises a front end cover, a rotor disc, a motor shaft, a magnet, a casing, a stator coil and a rear end cover, wherein the motor shaft is connected with the rotor disc along the center pin of the rotor disc, and both ends of the motor shaft respectively pass through the front end cover and the rear end cover. The stator coil is fixed on the inner bottom surface of the rear end cover, and the coiling of the stator coil is arranged along the radius of the stator coil. The magnet is annular and is fixed on the bottom of the rotor disc, and the magnet is magnetized axially. One side of the magnet is the south pole and the other side is the north pole. The commutatorless permanent magnet brushless DC motor is applied to the places where power is needed.
Description
Technical field
The utility model relates to a kind of motor, relates in particular to a kind of permanent-magnet brushless DC electric machine without commutation.
Background technology
Direct current machine is comprised of two essential parts, and namely the rotor of the stator of standing part and rotating part, convert electric energy to mechanical energy, and its running normally passes through mechanical commutation or electronic commutation with direct current, is transformed into the interchange electric-driven rotor; Wherein the direct current machine of mechanical commutation claims brush motor, and the direct current machine of electronic commutation claims again brshless DC motor.
Traditional brush motor is due to the existence of brush and commutator, thus complex structure, poor reliability, fault is many, and maintenance workload is large, and the life-span is short, and commutation spark easily produces electromagnetic interference.Traditional brshless DC motor commutates needs single-chip microcomputer or application-specific integrated circuit (ASIC), technical sophistication, cost is high, and motor is along with the increase of number of elements, reliability can reduce, also have because the operational environment of electronic component own requires restriction, be not adapted at high temperature, dirty, environmental work under water.In order to overcome above-mentioned defect, I have developed a kind of improved permanent-magnet brushless DC electric machine without commutation.
Summary of the invention
The purpose of this utility model is to provide a kind of permanent-magnet brushless DC electric machine without commutation, effectively solves the problem that complex structure, poor reliability, fault are many, maintenance workload is large, the life-span is short, commutation spark easily produces electromagnetic interference that traditional brush motor causes due to the existence of brush and commutator; And solve effectively that technical sophistication, cost that traditional brshless DC motor commutates needs single-chip microcomputer or application-specific integrated circuit (ASIC) to cause are high, motor is along with the reliability that the increase of number of elements causes reduces, the operational environment of electronic component own requires restriction and causes being not suitable for problem high temperature, dirty, under water environmental work.
The technical scheme that its technical problem that will solve the utility model adopts is: a kind of permanent-magnet brushless DC electric machine without commutation, comprise front end housing 1, rotor discs 2, motor shaft 3, magnet 4, casing 5, stator coil 6, rear end cap 7, described motor shaft 3 is connected with this rotor discs along the central shaft of rotor discs 2, front end housing 1 and rear end cap 7 are passed respectively in these motor shaft 3 two ends, it is characterized in that:
Described stator coil 6 is fixed on the inner bottom surface of rear end cap 7, and the coiling on this stator coil is arranged along the radius of this stator coil;
Described magnet 4 is for being fixed on the ringshaped magnet on rotor discs 2 bottom surfaces, and this magnet axial charging, be simultaneously the South Pole, and one side is the arctic.
Described rear end cap 7 is provided with ear with holes.
The beneficial effects of the utility model are:
The utility model has adopted above-mentioned technical scheme, and this stator coil without the permanent-magnet brushless DC electric machine of commutation is fixed on the inner bottom surface of rear end cap, and the coiling on this stator coil is arranged along the radius of this stator coil; Described magnet is the ringshaped magnet that is fixed on the rotor discs bottom surface, this magnet axial charging, and one side is the South Pole, one side is the arctic.Magnet of the present utility model, rotor discs and motor shaft form rotor, switch on to stator coil, electric current flows outward or toward interior along the radius of this stator coil, magnet produces electromagnetic force to the stator coil of energising, be fixed on due to stator coil on the inner bottom surface of rear end cap, magnet is subject to the reaction force that stator coil produces and the rotor driven disk rotates with respect to stator coil, thereby makes rotor rotate.The utility model is abandoned reversing arrangement fully, and motor operation course need not converting direct-current power into alternating-current power, and mode of operation is true direct current mode, need not to consume switching energy, and the loss of electric machine is lower.The utility model has externally been eliminated electromagnetic interference, and itself does not have electronic component, so have powerful antijamming capability.Owing to there is no reversing arrangement, structure is more succinct,, except significantly reducing social cost, has also greatly increased reliability and the life-span of motor, has also reduced the pollution to environment simultaneously.Can effectively solve like this problem that complex structure, poor reliability, fault are many, maintenance workload is large, the life-span is short, commutation spark easily produces electromagnetic interference that traditional brush motor causes due to the existence of brush and commutator; And solve effectively that technical sophistication, cost that traditional brshless DC motor commutates needs single-chip microcomputer or application-specific integrated circuit (ASIC) to cause are high, motor is along with the reliability that the increase of number of elements causes reduces, the operational environment of electronic component own requires restriction and causes being not suitable for problem high temperature, dirty, under water environmental work, and the utlity model has durable characteristics simple in structure, easy to use, safe.
Description of drawings
Fig. 1 is explosive view of the present utility model.
Fig. 2 is partial sectional view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model and embodiment thereof are described in further detail:
Referring to Fig. 1 and Fig. 2, the utility model comprises front end housing 1, rotor discs 2, motor shaft 3, magnet 4, casing 5, stator coil 6, rear end cap 7, described motor shaft 3 is connected with this rotor discs along the central shaft of rotor discs 2, front end housing 1 and rear end cap 7 are passed respectively in these motor shaft 3 two ends, it is characterized in that:
Described stator coil 6 is the annulus on the inner bottom surface that is fixed on rear end cap 7, and the coiling on this stator coil is arranged along the radius of this stator coil;
Described magnet 4 is on fixed rotor disk 2 bottom surfaces, this magnet axial charging, and one side is the South Pole, one side is the arctic.
Described rear end cap 7 is provided with ear with holes.
Described front end housing 1, casing 5, rear end cap 7 connect successively, rotor discs 2, motor shaft 3, magnet 4, stator coil 6 are wrapped in wherein, rotor discs 2, motor shaft 3, magnet 4 form rotor, stator coil 6 is fixed on the inner bottom surface of rear end cap 7, the utility model is without changement, simple in structure, easy for installation, production cost is low.Stator coil 6 in the utility model is fixed on the inner bottom surface of rear end cap 7, and the coiling on this stator coil 6 is arranged along the radius of this stator coil; Described magnet 4 is for being fixed on the ringshaped magnet on the rotor discs bottom surface, and this magnet axial charging, be simultaneously the South Pole, and one side is the arctic.Magnet 4 of the present utility model, rotor discs 2 and motor shaft 3 form rotor, during use, give stator coil 6 energisings, when electric current flows outward along the radius of this stator coil, the stator coil 6 of 4 pairs of energisings of magnet produces electromagnetic force, be fixed on due to stator coil 6 on the inner bottom surface of rear end cap 7, magnet is subject to the reaction force that stator coil 6 produces and rotor driven disk 2 rotates with respect to stator coil 6 around motor shaft 3, thereby makes rotor rotate.In like manner, reverse when electric current, electric current is interior when mobile along partly directly going to of this stator coil, and rotor is backward rotation thereupon.The utility model is abandoned reversing arrangement fully, and motor operation course need not converting direct-current power into alternating-current power, and mode of operation is true direct current mode, need not to consume switching energy, and the loss of electric machine is lower.The utility model has externally been eliminated electromagnetic interference, and itself does not have electronic component, so have powerful antijamming capability.Because the utility model does not have reversing arrangement, structure is more succinct,, except significantly reducing social cost, has also greatly increased reliability and the life-span of motor, has also reduced the pollution to environment simultaneously.
Described rear end cap 7 can be provided with ear with holes, and available screw passes described ear with holes motor is fixed on equipment, facilitates the fixing of motor.
More smooth and easy in order to make rotor rotate, bearing can be installed respectively in the center of described front end housing 1 and rear end cap 7.
Like this simple in structure, easy to use, safety durable, can effectively solve the problem that complex structure, poor reliability, fault are many, maintenance workload is large, the life-span is short, commutation spark easily produces electromagnetic interference that traditional brush motor causes due to the existence of brush and commutator; And solve effectively that technical sophistication, cost that traditional brshless DC motor commutates needs single-chip microcomputer or application-specific integrated circuit (ASIC) to cause are high, motor is along with the reliability that the increase of number of elements causes reduces, the operational environment of electronic component own requires restriction and causes being not suitable for problem high temperature, dirty, under water environmental work.
Description by above-mentioned structure and principle; the person of ordinary skill in the field is to be understood that; the utility model is not limited to above-mentioned embodiment; adopt the improvement of techniques well known and substitute on the utility model basis and all drop on protection range of the present utility model, should be limited by each claim.
Claims (2)
- One kind without the commutation permanent-magnet brushless DC electric machine, comprise front end housing (1), rotor discs (2), motor shaft (3), magnet (4), casing (5), stator coil (6), rear end cap (7), described motor shaft (3) is connected with this rotor discs along the central shaft of rotor discs (2), front end housing (1) and rear end cap (7) are passed respectively in this motor shaft (3) two ends, it is characterized in that:Described stator coil (6) is fixed on the inner bottom surface of rear end cap (7), and the coiling on this stator coil is arranged along the radius of this stator coil;Described magnet (4) is for being fixed on the ringshaped magnet on rotor discs (2) bottom surface, and this magnet axial charging, be simultaneously the South Pole, and one side is the arctic.
- According to claim 1 without the commutation permanent-magnet brushless DC electric machine, it is characterized in that: described rear end cap (7) is provided with ear with holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202427375U CN203301247U (en) | 2013-05-07 | 2013-05-07 | Commutatorless permanent magnet brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202427375U CN203301247U (en) | 2013-05-07 | 2013-05-07 | Commutatorless permanent magnet brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203301247U true CN203301247U (en) | 2013-11-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202427375U Expired - Fee Related CN203301247U (en) | 2013-05-07 | 2013-05-07 | Commutatorless permanent magnet brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203301247U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300702A (en) * | 2014-10-30 | 2015-01-21 | 盐城工学院 | Commutatorless permanent magnet disc-type direct-current motor |
| CN107681842A (en) * | 2017-11-21 | 2018-02-09 | 默拓（苏州）机电科技有限公司 | A kind of brushed DC motor |
-
2013
- 2013-05-07 CN CN2013202427375U patent/CN203301247U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300702A (en) * | 2014-10-30 | 2015-01-21 | 盐城工学院 | Commutatorless permanent magnet disc-type direct-current motor |
| CN107681842A (en) * | 2017-11-21 | 2018-02-09 | 默拓（苏州）机电科技有限公司 | A kind of brushed DC motor |
| CN107681842B (en) * | 2017-11-21 | 2023-12-08 | 默拓（苏州）机电科技有限公司 | Brush DC 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131120 Termination date: 20160507 |