CN202856584U - Rare-earth permanent magnet brushless motor of electric tricycle - Google Patents

Rare-earth permanent magnet brushless motor of electric tricycle Download PDF

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Publication number
CN202856584U
CN202856584U CN 201220556582 CN201220556582U CN202856584U CN 202856584 U CN202856584 U CN 202856584U CN 201220556582 CN201220556582 CN 201220556582 CN 201220556582 U CN201220556582 U CN 201220556582U CN 202856584 U CN202856584 U CN 202856584U
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CN
China
Prior art keywords
stator
permanent magnet
rotor
brushless motor
earth permanent
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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
Application number
CN 201220556582
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Chinese (zh)
Inventor
张昌州
Original Assignee
张昌州
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Filing date
Publication date
Application filed by 张昌州 filed Critical 张昌州
Priority to CN 201220556582 priority Critical patent/CN202856584U/en
Application granted granted Critical
Publication of CN202856584U publication Critical patent/CN202856584U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a rare-earth permanent magnet brushless motor of an electric tricycle, and belongs to the field of brushless motors. The rare-earth permanent magnet brushless motor comprises a stator and a rotor; the number of slots of the stator is 18, and the number of pole-pairs of the rotor is 8; the motor is of three-phase and six-state, the electrical angle is 120 DEG, an inner rotor operates, and the mechanical angle is 60 DEG; a position sensor distributed at the center of stator teeth outputs rotor position signals; and the inner diameter of the stator is 84mm, the outer diameter of the rotor is 83mm, and the unilateral gap is 0.5mm. The rare-earth permanent magnet brushless motor disclosed by the utility model has the advantages of abilities of reducing the magnetization frequency of an iron core and reducing iron loss. After adoption of the solution, the structural cost is about 1.5 times lower than before, the efficacy is 1.5 times higher, and the performance of the motor is far higher than that of a traditional motor.

Description

The electro-tricycle rare earth permanent magnet brushless motor
Technical field
The utility model relates to a kind of electro-tricycle rare earth permanent magnet brushless motor; Belong to the brushless electric machine field.
Technical background
The traditional general magnetic groove of similar permanent magnetic brushless number is 12, and number of pole-pairs is 4 structure, and the problem that this kind structure exists is that iron core magnetization frequency is high, and iron loss is large, temperature rise is fast, and noise is large, and power consumption is large, infrastructure cost is high, and production hour takes, and causes the overall failure rate higher.
Summary of the invention
The utility model provides a kind of electro-tricycle rare earth permanent magnet brushless motor, and purpose is to overcome the deficiencies in the prior art, reduces iron core magnetization frequency and noise, reduces iron loss, reduces infrastructure cost, enhances productivity and the motor effect, increases distance travelled.
Scheme of the present utility model is: a kind of electro-tricycle rare earth permanent magnet brushless motor, and it comprises stator core, winding, transducer, rotor core, permanent magnet, axle, bearing, protecgulum adpting flange, lead-out wire, rear end cap, casing; Described permanent magnet is fixed on the rotor core of axle, in the stator that is formed by stator core, winding, transducer of packing into, again with the front end housing flange of putting into bearing, rear end cap, lead-out wire, assembling machine casing together.Have stator slot on the stator, the groove number of stator is 18, and the number of pole-pairs of rotor is 8.
Described electro-tricycle rare earth permanent magnet brushless motor is three-phase six states, 120 ° of electrical degrees, and the internal rotor running, mechanical angle is 60 °, is distributed in the position transducer output rotor position signalling at stator tooth center.
The internal diameter of described stator is 84mm, and the external diameter of rotor is 83mm, monolateral gap 0.5mm.
The beneficial effects of the utility model are to reduce iron core magnetization frequency, reduce iron loss, and behind the employing such scheme, infrastructure cost has reduced than originally about 1.5 times, and effect has improved about 1.5 times, and motor performance is far above conventional motors.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified
Fig. 1 is structural representation of the present utility model:
Fig. 2 is stator core figure of the present utility model;
Fig. 3 is rotor core figure of the present utility model.
Among the figure: 1. lead-out wire, 2. winding, 3. transducer, 4. stator core, 5. permanent magnet, 6. rotor core, 7. casing, 8. axle, 9. bearing, 10. front end housing flange, 11. rear end caps, 12, stator slot.
Embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3: the electro-tricycle rare earth permanent magnet brushless motor mainly is comprised of stator core 4, winding 2, rotor core 6, permanent magnet 5, axle 8, bearing 9, transducer 3, protecgulum adpting flange 10, lead-out wire 1, rear end cap 11, casing 7; Permanent magnet 5 is fixed on the rotor core 6 of axle 8, packs in the stator that is comprised of stator core 4, winding 2, transducer 3, then forms with the front end housing flange 10 of putting into bearing 9, rear end cap 11, lead-out wire 1, casing 7 general assemblies.Have stator slot (Hull cell) on the stator, the groove number of stator is 18, and the number of pole-pairs of rotor is 8.
Design of electrical motor is three-phase six states, 120 ° of electrical degrees, and permanent magnet excitation, the internal rotor running, mechanical angle is 60 °, is distributed in the transducer 3 output rotor position signallings of stator tooth center, the teeth groove number equals 18, number of pole-pairs equals 8(2P=16); The internal diameter of stator is 84mm, and the external diameter of rotor is 83mm, monolateral gap 0.5mm.
Assembly technology of the present utility model is simple, rational gas length, and reasonably pole embrace and length diameter ratio make compact conformation, and noise is little, and temperature rise is slow, and power consumption is little, and effect is high, and cost is low, is adapted at the electro-tricycle machine field and applies.

Claims (3)

1. electro-tricycle rare earth permanent magnet brushless motor, it comprises stator core (4), winding (2), transducer (3), rotor core (6), permanent magnet (5), rotating shaft (8), bearing (9), protecgulum adpting flange (10), lead-out wire (1), rear end cap (11), casing (7), it is characterized in that, described permanent magnet (5) is fixed on the rotor core (6) of rotating shaft (8), pack into by stator core (4), winding (2), in the stator that transducer (3) forms, again with the front end housing flange (10) of putting into bearing (9), rear end cap (11), lead-out wire (1), casing (7) fits together; Have stator slot (12) on the stator, the groove number of stator is 18, and the number of pole-pairs of rotor is 8.
2. electro-tricycle rare earth permanent magnet brushless motor according to claim 1, it is characterized in that, described electro-tricycle rare earth permanent magnet brushless motor is three-phase six states, 120 ° of electrical degrees, the internal rotor running, mechanical angle is 60 °, is distributed in the position transducer output rotor position signalling at stator tooth center.
3. electro-tricycle rare earth permanent magnet brushless motor according to claim 1 is characterized in that, the internal diameter of described stator is 84mm, and the external diameter of rotor is 83mm, monolateral gap 0.5mm.
CN 201220556582 2012-10-26 2012-10-26 Rare-earth permanent magnet brushless motor of electric tricycle Expired - Fee Related CN202856584U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220556582 CN202856584U (en) 2012-10-26 2012-10-26 Rare-earth permanent magnet brushless motor of electric tricycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220556582 CN202856584U (en) 2012-10-26 2012-10-26 Rare-earth permanent magnet brushless motor of electric tricycle

Publications (1)

Publication Number Publication Date
CN202856584U true CN202856584U (en) 2013-04-03

Family

ID=47987735

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220556582 Expired - Fee Related CN202856584U (en) 2012-10-26 2012-10-26 Rare-earth permanent magnet brushless motor of electric tricycle

Country Status (1)

Country Link
CN (1) CN202856584U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105024466A (en) * 2015-07-28 2015-11-04 常州市一格电机有限公司 Motor for electric vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105024466A (en) * 2015-07-28 2015-11-04 常州市一格电机有限公司 Motor for electric vehicle

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130403

Termination date: 20131026

C17 Cessation of patent right