CN105703510A - Axial magnetic field printed circuit board permanent magnet brushless DC motor - Google Patents
Axial magnetic field printed circuit board permanent magnet brushless DC motor Download PDFInfo
- Publication number
- CN105703510A CN105703510A CN201610148409.7A CN201610148409A CN105703510A CN 105703510 A CN105703510 A CN 105703510A CN 201610148409 A CN201610148409 A CN 201610148409A CN 105703510 A CN105703510 A CN 105703510A
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- Prior art keywords
- circuit board
- printed circuit
- pcb
- permanent
- permanent magnet
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/26—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of printed conductors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
- Brushless Motors (AREA)
Abstract
The invention discloses an axial magnetic field printed circuit board permanent magnet brushless DC motor, which comprises a rotation shaft. A pair of symmetrically-arranged turntables are arranged on the rotation shaft; permanent magnets are fixed on opposite surfaces of the two turntables; a printed circuit board is arranged between the two turntables; gaps are left between the printed circuit board and permanent magnets at two sides; multiple radial single wires uniformly distributed around the circle center are arranged on the printed circuit board; the single wires are uniformly divided into multiple groups, and each group of single wires comprises three phases of coil; and the single wires in each phase of coil are connected into a winding circuit via an outer-circle connection wire at the outer end and an inner-circle connection wire at the inner end. The printed circuit board is adopted to replace the traditional winding, the design of a motor stator can be flexible, and high-precision wiring is realized; multiple layers of coils are arranged on the circuit board, the current carrying capacity is improved, and the motor power is thus improved; and no iron core is needed, eddy current loss is eliminated, the efficiency is improved, the overall structure is concise, pipeline assembly is facilitated, and the production efficiency is improved.
Description
Technical field
The present invention relates to technical field of motors, specifically a kind of axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine。
Background technology
Permanent-magnet brushless DC electric machine, compared with traditional electro-magnetic motor or permanent magnet brush direct current generator, has simple in construction, reliable, volume is little, quality is little, loss is few, efficiency high。Current range of application is extremely wide, almost throughout the every field of Aero-Space, national defence, industrial and agricultural production and daily life。
The structure of this permanent-magnet brushless DC electric machine did not have significant change in the last few years, and rotor main to adopt magnet radial poles sectional type permanent magnet, and stator is formed by being wound on the coil laminating in stalloy。The motor of this structure is owing to adopting manual coiling copper cash, and complex process, artificial and material cost height and quality are unstable；The quality of the stalloy laminated accounts for 1/3rd of motor gross mass, thus causing that volume is big, quality is big, eddy-current loss is big, efficiency is low。
Summary of the invention
For solving above-mentioned technical problem, the present invention provides the axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine that a kind of simple in construction, volume are little, quality is little, efficiency is high, reliable and cost is cheap。
The present invention is achieved through the following technical solutions: a kind of axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine, including rotating shaft, the rotating disk that be arranged in rotating shaft a pair is arranged symmetrically with；Rotating disk opposite face described in two is fixed with permanent magnet；In the middle of rotating disk described in two, it is provided with the printed circuit board (PCB) being arranged in parallel with rotating disk, between printed circuit board (PCB) and the permanent magnet of both sides, leaves gap；
Described printed circuit board (PCB) is provided with winding connection terminal, be additionally provided with on a printed circuit many around the center of circle solid conductor of equally distributed radial direction；Described solid conductor is uniformly divided into many groups in the direction of the clock or counterclockwise, and often group solid conductor includes 3 phase coils；The described solid conductor in every phase coil connects into a winding loop by the outer ring connecting line of outer end and inner inner ring connecting line；Each described winding loop is connected on the winding connection terminal on printed circuit board (PCB)。
It is further: described printed circuit board (PCB) is in the form of annular discs, and printed circuit board (PCB) center has for the hole through rotating shaft；Many described solid conductors are radially distributed around printed circuit board (PCB)；Described winding connection terminal is arranged on printed circuit board (PCB) edge。
Described permanent magnet entirety is annular。
The annular that described permanent magnet is made up of the magnet of piecemeal。
The magnetic direction of described permanent magnet is axially, and number of magnetic poles is many magnetic poles, and permanent magnet is alternately distributed permanent magnet N pole and permanent magnet S pole near the one side of printed circuit board (PCB) along annular direction；Each magnetic pole in two permanent magnets is relative with the magnetic pole magnetic in the permanent magnet of offside respectively。
Described printed circuit board (PCB) is provided with along the equally distributed hall effect sensor in printed circuit board (PCB) center, is provided with hall effect sensor binding post in printed circuit board (PCB) edge。
Described solid conductor has 1 layer or 2 layers or more than the 2 layers numbers of plies, has connecting hole between every layer of solid conductor。
Described motor also includes controller, and controller controls to connect the on and off switch of winding loop in every phase coil respectively。
The present invention adopts printed circuit board (PCB) to replace tradition winding so that motor stator flexible design is changeable, it is achieved high accuracy wiring；Circuit board divides multilamellar arrangement coil, improves current-carrying capacity, and then improves power of motor；Without iron core, eliminate eddy-current loss, make efficiency improve, and overall structure is simplified, be conducive to assembly line, improve production efficiency。It addition, the present invention is accurately controlled, it can provide accurate rotating speed, direct torque。Stabilized (steady-state) speed, torque can be come, thus under at the uniform velocity state, reducing current drain, it is possible to changed by the control mode of change hall effect sensor and turn to by the size of control electric current。
Accompanying drawing explanation
Figure 1A is perspective view of the present invention；
Figure 1B is side view of the present invention；
Fig. 1 C is front view of the present invention；
Fig. 2 is the structural representation of the permanent magnet of the magnetic pole distribution having illustrated in the present invention and having embedded magnet；
Fig. 3 A is the front surface of stator printed circuit board (PCB)
Fig. 3 B is the rear surface of stator printed circuit board (PCB)
Fig. 4 A is the circuit diagram of the A phase winding of printed circuit board (PCB) in one embodiment of the invention；
Fig. 4 B is the circuit diagram of the B phase winding of printed circuit board (PCB) in one embodiment of the invention；
Fig. 4 C is the circuit diagram of the C phase winding of printed circuit board (PCB) in one embodiment of the invention。
In figure: 10, printed circuit board (PCB)；11, rotating disk；12, rotating shaft；13, permanent magnet；21, permanent magnet N pole；22, permanent magnet S pole；30, winding connection terminal；31, hall effect sensor binding post；32, solid conductor；33, outer ring connecting line；34, inner ring connecting line；40, A phase winding；41, B phase winding；42, C phase winding。
Detailed description of the invention
The following is the present invention a specific embodiment, in conjunction with accompanying drawing, the invention will be further described。
As shown in Figure 1A, Figure 1B and Fig. 1 C, a kind of axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine；Rotating shaft 12 is installed the rotating disk 11 being arranged symmetrically with for a pair, two rotating disk 11 opposite faces are fixed with permanent magnet 13；It is provided with, in the middle of two rotating disks 11, the printed circuit board (PCB) 10 being arranged in parallel with rotating disk 11, rotating shaft 12 has positioning table, for keeping the spacing being embedded in two rotor rotating disks 11 between permanent magnet 13, make each permanent magnet 13 magnetic pole strength equal with printed circuit board (PCB) 10 winding parallel and gap。
Shown in Fig. 3 A, Fig. 3 B, printed circuit board (PCB) 10 is provided with winding connection terminal 30, is additionally provided with the solid conductor 32 of the many equally distributed radial directions around the center of circle on the printed circuit board 10；Solid conductor 32 has 2 layers or the above number of plies, has connecting hole between every layer of solid conductor 32；Solid conductor 32 is uniformly divided into 4 groups in the direction of the clock or counterclockwise, often group solid conductor 32 includes A, B, C3 phase coil, every phase coil includes 8 solid conductors 32, the solid conductor 32 often organized in every phase coil connects into a winding loop by outer ring connecting line 33 and the inner inner ring connecting line of outer end, such as Fig. 4 A, 4B, 4C；Every phase coil is connected with the conductor of outer ring by printed circuit board (PCB) interconnection layer inner ring, and series connection forms 4 winding loops, and one end of A, B, C three-phase connects into neutral point at printed circuit board (PCB) interconnection layer。Each winding loop is connected on the winding connection terminal 30 on printed circuit board (PCB) 10。Printed circuit board (PCB) 10 is overall in the form of annular discs, is provided with a protuberance at it, and winding connection terminal 30 is located on this protuberance；Printed circuit board (PCB) 10 center has for the hole through rotating shaft 12；Many solid conductors 32 are around this printed circuit board (PCB) 10 centre bore radial distribution。
Shown in Fig. 2, permanent magnet 13 is overall in annular, the annular being specifically made up of the identical fan-shaped magnet of eight pieces；The magnetic direction of permanent magnet 13 is axially, and number of magnetic poles is 8 magnetic poles, and permanent magnet 13 is alternately distributed permanent magnet N pole 21 and permanent magnet S pole 22 near the one side of printed circuit board (PCB) 10 along annular direction；Each magnetic pole in two permanent magnets 13 is relative with the magnetic pole magnetic in the permanent magnet 13 of offside respectively。The rotating disk 11 embedding annular permanent magnet adopts the steel that magnetic conductivity is strong, and magnetic circuit expands to the front surface of this rotating disk, is coupled to the rotating shaft at the rotating disk back side and as the printed circuit board (PCB) of stator。The permanent magnet of both sides produces to run through the unidirectional magnetic circuit of printed circuit board (PCB), and owing to permanent magnet is 8 magnetic poles, therefore the permanent magnet in the rotating disk of both sides is in radially deviation 45 ° mutually so that permanent magnet N pole, both sides is extremely relative with S。
It addition, also include controller, controller includes and three-phase windings electrical switch in printed circuit board (PCB)。Printed circuit board (PCB) 10 is provided with equally distributed for measuring rotor rotating disk 11 rotating speed and the hall effect sensor turned to along printed circuit board (PCB) 10 center, is provided with hall effect sensor binding post 31 at printed circuit board (PCB) 10 protuberance。Hall effect sensor is the control signals such as the controller relative position and the rotating speed that provide rotor and stator, makes the electric current in the correct turn-on and turn-off corresponding windings of controller, it is ensured that motor is in normal duty。
Multiple hall effect sensors detection current time permanent magnet pole position, its control signal turns in corresponding A, B, C three-phase wherein biphase, it is passed to the electric current of certain orientation, winding on printed circuit board (PCB) is made to produce magnetic field, this magnetic field and permanent magnet run through the magnetic field of printed circuit board (PCB) and act on mutually, permanent magnet is rotated by its revolving force, and wherein, described effective work done conductor is the intermediate annular radially single conductor of printed circuit board (PCB) every layer。Axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine also includes controller, and controller controls to connect the on and off switch of winding loop in every phase coil respectively。
Shown in Fig. 3 A, solid conductor 32 is radially even arrangement on the printed circuit board 10, and is the effective Working conductors in three-phase windings。Electric current is led to correct winding in the correct moment by winding connection terminal 30 by controller, solid conductor 32 in winding passes to electric current, it will producing stator field, this stator field interacts with the magnetic pole of permanent magnet in rotating disk, produce revolving force, make rotor rotate。Hall effect sensor in stator printed circuit board (PCB) detects permanent magnet pole, produces control signal, leads to controller by hall effect sensor binding post 31, for detecting the rotating speed of rotor and turning to。As shown in Figure 3 B, the solid conductor 32 in single-phase winding is connected formed magnetic pole of the stator by outer ring connecting line 33 and inner ring connecting line 34。Owing to motor is when normal operating conditions, the operating current of outer ring connecting line 33 and the high several times of inner ring connecting line 34 CBR solid conductor 32, thus cross-sectional area of conductor is long-pending big compared with the sectional area of solid conductor。
As Fig. 4 A, Fig. 4 B, Fig. 4 C show the circuit diagram of A, B, C three-phase windings。
Monolayer A phase winding is made up of four coils connected in series, and when passing to electric current, four coils produce identical stator field, interact with the magnetic pole of permanent magnet 13 same position, produce rotary power, make rotating disk 12 rotate。When in rotating disk, permanent magnet 13 magnetic pole turns to contrary with stator A phase magnetic pole, controller makes to pass in A phase winding 40 inverse current by the control signal that hall effect sensor produces, and then continues to produce constant rotational power。B phase winding 41 is identical with C phase winding 42 operation principle。
It is characteristic of the invention that and printed circuit board (PCB) is replaced into traditional silicon sheet core and coiling so that motor axial dimension reduces, material, cost of labor reduce, weight saving, and loss reduces, and reliability increases；Again because have employed the printed circuit board (PCB) that mechanization manufactures, electric machine structure is simplified, and man-made assembly is convenient, and efficiency is high, is conducive to production line balance。
Claims (8)
1. an axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine, it is characterised in that: include rotating shaft (12), be arranged on the rotating disk (11) being arranged symmetrically with for a pair in rotating shaft (12)；Rotating disk described in two (11) opposite face is fixed with permanent magnet (13)；It is provided with, in the middle of rotating disk described in two (11), the printed circuit board (PCB) (10) being arranged in parallel with rotating disk (11), between the permanent magnet (13) of printed circuit board (PCB) (10) and both sides, leaves gap；
Described printed circuit board (PCB) (10) is provided with winding connection terminal (30), is additionally provided with the solid conductor (32) of the many equally distributed radial directions around the center of circle on printed circuit board (PCB) (10)；Described solid conductor (32) is uniformly divided into many groups in the direction of the clock or counterclockwise, often organizes solid conductor (32) and includes 3 phase coils；Solid conductor (32) in described every phase coil connects into a winding loop by outer ring connecting line (33) and the inner inner ring connecting line of outer end；Each described winding loop is connected on the winding connection terminal (30) on printed circuit board (PCB) (10)。
2. axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine according to claim 1, it is characterised in that: described printed circuit board (PCB) (10) is in the form of annular discs, and printed circuit board (PCB) (10) center has for the hole through rotating shaft (12)；Many described solid conductors (32) are radially distributed around printed circuit board (PCB) (10)；Described winding connection terminal (30) is arranged on printed circuit board (PCB) (10) edge。
3. axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine according to claim 1, it is characterised in that: described permanent magnet (13) is overall in annular。
4. axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine according to claim 3, it is characterised in that: the annular that described permanent magnet (13) is made up of the magnet of piecemeal。
5. axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine according to claim 1, it is characterized in that: the magnetic direction of described permanent magnet (13) is axial, number of magnetic poles is many magnetic poles, and permanent magnet (13) is alternately distributed permanent magnet N pole (21) and permanent magnet S pole (22) near the one side of printed circuit board (PCB) (10) along annular direction；Each magnetic pole in two permanent magnets (13) is relative with the magnetic pole magnetic in the permanent magnet of offside (13) respectively。
6. axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine according to claim 1, it is characterized in that: described printed circuit board (PCB) (10) is provided with along the equally distributed hall effect sensor in printed circuit board (PCB) (10) center, is provided with hall effect sensor binding post (31) in printed circuit board (PCB) (10) edge。
7. axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine according to claim 1, it is characterised in that: described solid conductor (32) has 1 layer or 2 layers or more than the 2 layers numbers of plies, has connecting hole between every layer of solid conductor (32)。
8. according to the axial magnetic field printed circuit board (PCB) permanent-magnet brushless DC electric machine described in claim 1, it is characterised in that: described motor also includes controller, and controller controls to connect the on and off switch of winding loop in every phase coil respectively。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148409.7A CN105703510A (en) | 2016-03-15 | 2016-03-15 | Axial magnetic field printed circuit board permanent magnet brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610148409.7A CN105703510A (en) | 2016-03-15 | 2016-03-15 | Axial magnetic field printed circuit board permanent magnet brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105703510A true CN105703510A (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610148409.7A Pending CN105703510A (en) | 2016-03-15 | 2016-03-15 | Axial magnetic field printed circuit board permanent magnet brushless DC motor |
Country Status (1)
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| CN (1) | CN105703510A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300856A (en) * | 2016-08-31 | 2017-01-04 | 长沙益高汽车有限公司 | A kind of magneto multilayer board motor |
| CN106374643A (en) * | 2016-11-09 | 2017-02-01 | 中国矿业大学 | Printed alternating-current motor |
| CN106451848A (en) * | 2016-09-30 | 2017-02-22 | 徐州鸿润达电动车有限公司 | PCB (Printed Circuit Board)-stator permanent-magnet differential motor of electromobile |
| CN106712416A (en) * | 2017-03-08 | 2017-05-24 | 升华电梯有限公司 | Multi-stator rotor structure axial direction permanent magnet brushless traction machine |
| CN107689699A (en) * | 2017-09-28 | 2018-02-13 | 浙江顺动科技有限公司 | A kind of permanent-magnet brushless DC electric machine of novel printing winding |
| CN107947410A (en) * | 2017-12-05 | 2018-04-20 | 浙江益中智能电气有限公司 | A kind of PCB permanent-magnet brushless DC electric machines |
| CN108063509A (en) * | 2017-12-25 | 2018-05-22 | 北京泽世科技发展有限公司 | A kind of printed circuit board motor |
| WO2018152944A1 (en) * | 2017-02-27 | 2018-08-30 | 深圳市道通智能航空技术有限公司 | Motor, and pan-tilt and robotic arm having same |
| CN108736593A (en) * | 2018-08-20 | 2018-11-02 | 上海适达动力科技股份有限公司 | Snakelike wound stator and motor |
| CN109842229A (en) * | 2019-02-27 | 2019-06-04 | 上海崴崖实业有限公司 | A kind of stator structure based on disc-type permanent magnet motor winding |
| CN112134429A (en) * | 2019-08-16 | 2020-12-25 | 北京理工大学 | Integrated PCB winding disc type motor system |
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| US6998751B2 (en) * | 2003-09-16 | 2006-02-14 | Rotys Inc. | High reliability electric drive |
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Non-Patent Citations (1)
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300856A (en) * | 2016-08-31 | 2017-01-04 | 长沙益高汽车有限公司 | A kind of magneto multilayer board motor |
| CN106451848A (en) * | 2016-09-30 | 2017-02-22 | 徐州鸿润达电动车有限公司 | PCB (Printed Circuit Board)-stator permanent-magnet differential motor of electromobile |
| CN106374643B (en) * | 2016-11-09 | 2019-01-18 | 中国矿业大学 | Print alternating current generator |
| CN106374643A (en) * | 2016-11-09 | 2017-02-01 | 中国矿业大学 | Printed alternating-current motor |
| WO2018152944A1 (en) * | 2017-02-27 | 2018-08-30 | 深圳市道通智能航空技术有限公司 | Motor, and pan-tilt and robotic arm having same |
| EP3386074A4 (en) * | 2017-02-27 | 2018-10-10 | Autel Robotics Co., Ltd. | Motor, and pan-tilt and robotic arm having same |
| CN106712416A (en) * | 2017-03-08 | 2017-05-24 | 升华电梯有限公司 | Multi-stator rotor structure axial direction permanent magnet brushless traction machine |
| CN107689699A (en) * | 2017-09-28 | 2018-02-13 | 浙江顺动科技有限公司 | A kind of permanent-magnet brushless DC electric machine of novel printing winding |
| CN107947410A (en) * | 2017-12-05 | 2018-04-20 | 浙江益中智能电气有限公司 | A kind of PCB permanent-magnet brushless DC electric machines |
| CN108063509A (en) * | 2017-12-25 | 2018-05-22 | 北京泽世科技发展有限公司 | A kind of printed circuit board motor |
| CN108736593A (en) * | 2018-08-20 | 2018-11-02 | 上海适达动力科技股份有限公司 | Snakelike wound stator and motor |
| CN109842229A (en) * | 2019-02-27 | 2019-06-04 | 上海崴崖实业有限公司 | A kind of stator structure based on disc-type permanent magnet motor winding |
| CN112134429A (en) * | 2019-08-16 | 2020-12-25 | 北京理工大学 | Integrated PCB winding disc type motor system |
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Application publication date: 20160622 |