CN207518381U - A kind of PCB permanent-magnet brushless DC electric machines - Google Patents
A kind of PCB permanent-magnet brushless DC electric machines Download PDFInfo
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- CN207518381U CN207518381U CN201721670995.8U CN201721670995U CN207518381U CN 207518381 U CN207518381 U CN 207518381U CN 201721670995 U CN201721670995 U CN 201721670995U CN 207518381 U CN207518381 U CN 207518381U
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Abstract
The utility model provides a kind of PCB permanent-magnet brushless DC electric machines, belongs to technical field of transmission machinery.This PCB permanent-magnet brushless DC electric machines, include the drive end bearing bracket and rear end cap for the setting that cooperates, equal clearance fit is provided with rotor disk in drive end bearing bracket and rear end, magnet steel is fixedly installed in rotor disk, PCB stator plates are provided between two rotor disks, two surfaces of PCB stator plates add insulating radiation aluminum substrate, the magnet steel face of two rotor disks is respectively at aluminum substrate, PCB stator plates, aluminum substrate is installed in shaft and forms air gap, Wiring port is provided in PCB stator plates, is respectively cooperating with offering the card slot placed for Wiring port on drive end bearing bracket and rear end cap.The utility model has the advantages of magnetic circuit is short, and non iron-core magnetic effect is high, and thermal losses is small, volume compact.
Description
Technical field
The utility model belongs to technical field of transmission machinery, is related to a kind of motor, and more particularly to a kind of PCB brushless, permanentlies are straight
Galvanic electricity machine.
Background technology
PCB Chineses are printed circuit board, also known as printed wiring board, are the core components of PCB permanent magnetic brushless, area
Not in traditional traditional copper wire winding iron core stator structure, PCB is a kind of no stator iron yoke and turns instead of the coil of motor
The disc-type permanent magnet motor of sub- iron yoke.It is more efficient compared to its volume smaller of traditional motor under equal power, usual quilt
For fields such as machinery, electric vehicle, automatic machinery, household electrical appliance, unmanned plane, gardens electric tools.This PCB motor profit
Existing machine winding stator is substituted with the copper foil cabling on pcb board, simplifies electric machine iron core manufacturing process, eliminates simultaneously
The techniques such as coiling wiring with reference to modern advanced multi-layer PCB manufacturing process technology, make the permanent magnet motor armature system of original complexity
It makes and is simplified, convenient for automatic batch production.
Invention content
The purpose of this utility model is for the above-mentioned problems in the prior art, provides a kind of use PCB and manufactures
Technology to circuit board size, shape, position, the copper thickness circuit board number of plies design and distribute rationally, reach optimization electric efficiency, turn round
The PCB permanent-magnet brushless DC electric machines of square and speed.
The purpose of this utility model can be realized by following technical proposal：A kind of PCB permanent-magnet brushless DC electric machines, including
Cooperate the drive end bearing bracket and rear end cap set, which is characterized in that equal clearance fit is provided in the drive end bearing bracket and rear end
Rotor disk is fixedly installed magnet steel in the rotor disk, PCB stator plates, the PCB is provided between two rotor disks
Two surfaces of stator plate add insulating radiation aluminum substrate, and the magnet steel face of two rotor disks is respectively at aluminum substrate, PCB stators
Plate, aluminum substrate are installed in shaft and form air gap, and Wiring port, the drive end bearing bracket are provided in the PCB stator plates
Be respectively cooperating with offering the card slot placed for Wiring port on rear end cap.
The technique effect of this PCB permanent-magnet brushless DC electric machines is：Magnet steel magnetic field is magnetized by annular magnetic steel segmentation and formed, motor
Magnetic direction, using electric current and the interaction force in magnetic field, drives 2 rotor disks/magnet steel rotation along axially vertical PCB stator plates are turned
Turn, drive shaft rotation, since PCB stator plates are larger by electric current, cause pcb board fever big, in order to solve this problem, dissipate
Hot aluminum substrate is finally pressed with electric machine casing and is connected, this PCB permanent magnetic brushless brushless and commutator, efficient, long lifespan,
Non-stator iron core reduces the magnetic loss on rotor, and permanent magnet performance is fully used, and leakage magnetic flux is reduced, power of motor
Density is improved.
In a kind of above-mentioned PCB permanent-magnet brushless DC electric machines, described every layer of circumferential surface of PCB stator plates is uniformly covered with
Several radial straight wires are connected with phase straight wire both ends by circular arc cabling, form a 3 phase motor wherein phases, while in PCB
Short circuit three-phase phase line inside stator plate forms 3 phase, 8 pole motor stator, and 12 straight wire space crossings of phase line are arranged under each magnetic pole
It arranges, the cabling of totally 8 pole 96.
In a kind of above-mentioned PCB permanent-magnet brushless DC electric machines, the PCB stator plates are 10 layers of PCB trace.
In a kind of above-mentioned PCB permanent-magnet brushless DC electric machines, positioned at rotor disk in the drive end bearing bracket and rear end cap
Contact surface is both provided with insulated enclosure circle, and drive end bearing bracket and rear end cap are fastened by bolts.
In a kind of above-mentioned PCB permanent-magnet brushless DC electric machines, the rear end of the shaft is against in due to rear end cap, front end
It stretches out outside drive end bearing bracket, and is assembled by bearing.
Compared with prior art, this PCB permanent-magnet brushless DC electric machines have magnetic circuit short, and non iron-core magnetic imitates height, and thermal losses is small,
The advantages of volume compact.
Description of the drawings
Fig. 1 is the explosive view of this PCB permanent-magnet brushless DC electric machines.
Fig. 2 is the sectional view of this PCB permanent-magnet brushless DC electric machines.
Fig. 3 is the structure diagram of this PCB stator plates.
In figure, 1, drive end bearing bracket；2nd, rear end cap；3rd, rotor disk；4th, magnet steel；5th, PCB stator plates；6th, aluminum substrate；7th, shaft；8、
Wiring port；9th, card slot；10th, straight wire；11st, sealing ring；12nd, bolt；13rd, bearing.
Specific embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1, Figure 2, Figure 3 shows, this PCB permanent-magnet brushless DC electric machines, the drive end bearing bracket 1 including the setting that cooperates is with after
End cap 2, clearance fit is provided with rotor disk 3 in drive end bearing bracket 1 and rear end, and magnet steel 4, two rotors are fixedly installed in rotor disk 3
PCB stator plates 5 are provided between disk 3, two surfaces of PCB stator plates 5 add insulating radiation aluminum substrate 6, two rotor disks
34 face of magnet steel is installed in shaft 7 respectively at aluminum substrate 6, PCB stator plates 5, aluminum substrate 6 and forms air gap, PCB stator plates 5
On be provided with Wiring port 8, be respectively cooperating with offering the card slot 9 placed for Wiring port 8 on drive end bearing bracket 1 and rear end cap 2.
Its essence is a kind of printed circuit board non iron-core disc brushless permanent magnet DC motor, including a shaft 7, shaft 7
It is upper there are two rotor disk 3, mounting permanent magnet on rotor disk 3 has PCB stator plates 5, PCB stator plates 5 between two rotor disks 3
Both sides are equipped with 6 radiating aluminium sheet of aluminum substrate, and 4 face of magnet steel of two rotor disks 3 is respectively at aluminum substrate 6, PCB stator plates 5, aluminum substrate 6
Form air gap.
Motor-field direction is along the vertical PCB stator plates 5 of motor axis direction, axial magnetic field disk motor.
PCB stator plates 5, which are that 10 layer printed circuit boards are axially stacking, to be formed, per layer printed circuit board ring in 4 region of shape magnet steel
The straight wire 10 of radial imitative motor cabling is covered with, is connected outside 4 region of annular magnetic steel by arc routing, and in internal short circuit
Form three phase electric machine winding.
96 radial straight wires 10, and pass through and beat in total on each layer of circumference of 10 circuit trace layers in PCB stator plates 5
10 straight wires 10 on 10 layers are connected in parallel by via.Between straight wire 10 totally 96 lines row is repeated 8 times for one group in 12 lines
Row, the phase isopen with the phase line in group and adjacent sets are connected in series with, and form 8 pole motor stator motor of three-phase.
3 hall position sensors are installed, 60 degree of distributions position for magneto position in PCB stator plates 5.
Since the filling material of PCB stator plates 5 is glass fiber material poor thermal conductivity, when motor passes through high current PCB stator plates 5
On conductor overheating, glass heat conductivility is bad, outside 52 side of PCB stator plates plus aluminium radiator fin, helps improve pcb board heat dissipation.
Further to describe in detail, the contact surface in drive end bearing bracket 1 and rear end cap 2 positioned at rotor disk 3 is both provided with insulated enclosure circle 11,
And drive end bearing bracket 1 and rear end cap 2 are fastened by bolt 12；Against in due to rear end cap 2, drive end bearing bracket 1 is stretched out in front end for the rear end of shaft 7
Outside, and by bearing 13 it assembles.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although be used more herein drive end bearing bracket 1, rear end cap 2, rotor disk 3, magnet steel 4, PCB stator plates 5, aluminum substrate 6,
The terms such as shaft 7, Wiring port 8, card slot 9, straight wire 10, sealing ring 11, bolt 12, bearing 13, but be not precluded and use it
The possibility of its term.The use of these terms is merely for the convenience of describing and explaining the nature of the invention；It
To be construed to any one of the additional limitations be all contrary to the spirit of the present invention.
Claims (5)
1. a kind of PCB permanent-magnet brushless DC electric machines include the drive end bearing bracket for the setting that cooperates（1）And rear end cap（2）, feature exists
In the drive end bearing bracket（1）Clearance fit equal in rear end is provided with rotor disk（3）, the rotor disk（3）Interior fixed setting
There is magnet steel（4）, two rotor disks（3）Between be provided with PCB stator plates（5）, the PCB stator plates（5）Two surfaces it is equal
Add insulating radiation aluminum substrate（6）, two rotor disks（3）Magnet steel（4）Face is respectively at aluminum substrate（6）, PCB stator plates（5）,
Aluminum substrate（6）It is installed on shaft（7）Upper and composition air gap, the PCB stator plates（5）On be provided with Wiring port（8）, institute
The drive end bearing bracket stated（1）And rear end cap（2）On be respectively cooperating with offering for Wiring port（8）The card slot of placement（9）.
A kind of 2. PCB permanent-magnet brushless DC electric machines according to claim 1, which is characterized in that the PCB stator plates
（5）Every layer of circumferential surface is uniformly covered with several radial straight wires（10）, with phase straight wire（10）Both ends pass through circular arc cabling string
Connection forms a 3 phase motors wherein phase, while in PCB stator plates（5）Internal short circuit three-phase phase line forms 3 phase, 8 pole motor stator,
12 straight wires of phase line under each magnetic pole（10）Space crossings arrange, the cabling of totally 8 pole 96.
A kind of 3. PCB permanent-magnet brushless DC electric machines according to claim 1 or 2, which is characterized in that the PCB stators
Plate（5）For 10 layers of PCB trace.
A kind of 4. PCB permanent-magnet brushless DC electric machines according to claim 1, which is characterized in that the drive end bearing bracket（1）With
Rear end cap（2）It is interior to be located at rotor disk（3）Contact surface be both provided with insulated enclosure circle（11）, and drive end bearing bracket（1）And rear end cap（2）
Pass through bolt（12）Fastening.
A kind of 5. PCB permanent-magnet brushless DC electric machines according to claim 1, which is characterized in that the shaft（7）Rear end
Against due to rear end cap（2）Interior, drive end bearing bracket is stretched out in front end（1）Outside, and pass through bearing（13）Assembling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721670995.8U CN207518381U (en) | 2017-12-05 | 2017-12-05 | A kind of PCB permanent-magnet brushless DC electric machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721670995.8U CN207518381U (en) | 2017-12-05 | 2017-12-05 | A kind of PCB permanent-magnet brushless DC electric machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207518381U true CN207518381U (en) | 2018-06-19 |
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ID=62543019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721670995.8U Active CN207518381U (en) | 2017-12-05 | 2017-12-05 | A kind of PCB permanent-magnet brushless DC electric machines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207518381U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109245476A (en) * | 2018-10-31 | 2019-01-18 | 湖北工业大学 | A kind of miniature PCB motor |
| CN111293798A (en) * | 2020-02-18 | 2020-06-16 | 天津大学 | Permanent magnet synchronous motor with axial magnetic field composite PCB stator and iron core |
-
2017
- 2017-12-05 CN CN201721670995.8U patent/CN207518381U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109245476A (en) * | 2018-10-31 | 2019-01-18 | 湖北工业大学 | A kind of miniature PCB motor |
| CN111293798A (en) * | 2020-02-18 | 2020-06-16 | 天津大学 | Permanent magnet synchronous motor with axial magnetic field composite PCB stator and iron core |
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