CN108233659A - Novel hollow cup position-sensor-free DC fan - Google Patents
Novel hollow cup position-sensor-free DC fan Download PDFInfo
- Publication number
- CN108233659A CN108233659A CN201611201754.9A CN201611201754A CN108233659A CN 108233659 A CN108233659 A CN 108233659A CN 201611201754 A CN201611201754 A CN 201611201754A CN 108233659 A CN108233659 A CN 108233659A
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- CN
- China
- Prior art keywords
- fan motor
- hall
- hw101a
- driving circuit
- cup
- Prior art date
- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
- H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/02—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for suppression of electromagnetic interference
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The present invention discloses novel drag cup DC brushless fan motor, applied to computer, LED, automobile electronic product, scientific electronic instrument, civil aviation equipment, portable device, the equipment such as 3D printing, it is big to overcome existing fan motor electromagnetic noise, short life, power consumption is big, energy conversion efficiency is low, it is difficult to control, start the defects of slow, the fan motor of the present invention is by impeller, magnet steel yoke plate, axis, impeller washer sets, by casing, oiliness bearing, axis is by plate, gasket, driving circuit PCBA, hollow cup coil winding, coil yoke plate, then plate, screw, c-type snap ring, conducting wire forms, with stable long lifespan, small power consumption, it is efficient, the features such as electromagnetic noise is small.It is characterized in that employing the motor of drag cup construction, wind is taken to disappear iron core, motor driver UTC M2073G S08 R, UTC3414G P08, APX9227XI TRG are core as fan motor driving circuit.
Description
Technical field
The present invention discloses novel drag cup DC brushless fan motor, is applied to computer, LED, automobile electron-like
Product, the equipment such as scientific electronic instrument, civil aviation equipment, portable device, 3D printing part cooling fan motor.
Background technology
Existing DC fan, motor structure are constructed using conventional iron core motor, driving circuit mainly by
Single Hall IC and coil windings composition, magnetic field is using radial magnetic field, although at present with extensively, there is also very much
Shortcoming：
1st, the construction of iron core make fan motor stator volume is big, weight increases by more than 30%,
2nd, mechanical energy losses are more, and core material makes fan motor have magnetic damping and iron loss, increase motor driving
Power, iron loss pyrotoxin, make motor energy incur loss, and motor is made to become not energy-efficient.Power consumption is big.
3rd, single Hall IC and coil windings composition fan motor driving circuit, the waveform of output is rectangular wave, in Hall
Electromagnetic noise is easily generated when motor commutates.
4th, the startup response time is slow, and rotational speed is difficult to control, operation characteristic is not very stable, and the service life is caused to reduce.
5th, radial magnetic field structure design, energy conversion efficiency is very low and the increasing of torque volume ratio is small,
As the development of Power Electronic Technique and portable instrument, the appearance of electronic product, market also carry fan motor
New requirement is gone out.The shortcomings that existing DC fan, is also outstanding day by day.And the present invention discloses novel drag cup direct current
Brushless fan motor just overcomes the defects of existing fan motor, meets the demand in market, to dissipating for various electronic products
Heat provides outstanding heat dissipation solution.
Invention content
In order to overcome the shortage of prior art part, the present invention discloses novel drag cup DC brushless fan motor.It solves
Overcome that existing fan motor electromagnetic noise is big, short life, power consumption is big, energy conversion efficiency is low, it is difficult to control, start low-response
The problems such as.Make fan motor more energy efficient, easy to control, small, thin, moyor improves 50%.And make the structure of fan electromotor
Making becomes with simple.
The present invention discloses novel drag cup DC brushless fan motor and is made of following component：
1 casing；2 oiliness bearings；3 impellers；4 axis；5 magnet steel yoke plates；6 magnet steel；7 impeller washers 8, coil yoke plate 9 are then
Plate；10 hollow cup coil windings；11 driving circuit PCBA；12 axis are by plate；13 gaskets；14 screws；15 c-type snap rings；16 conducting wires
The defects of in order to overcome the prior art, the present invention disclose novel drag cup DC brushless fan motor employ with
New technology down：
1. fan motor structure is employed with the hollow of prominent energy conservation characteristic, sensitive control characteristic and stable operation characteristic
Cup construction, eliminates iron core, as efficient energy conversion device, represents the developing direction of motor.It is mainly characterized by：
Energy conservation characteristic is excellent, and energy conversion efficiency is very high to can reach the general 70% of 90%. iron cores；It is easy to control：Start, brake it is fast
Speed, response are exceedingly fast, and mechanical time constant is less than 28 milliseconds, and iron core fan motor is generally at 100 milliseconds or more；In addition, drag cup
The energy density of fan motor increases substantially, and same weight/power ratio, volume mitigate 1/3.
2. the present invention fan motor driving circuit PCBA, by Hall element, motor driving IC, several resistance, diode,
Capacitance forms, and due to the rational design of fan motor, multiple fan motor driving circuit PCBA can be applied and the present invention.Tool
Body is as follows：
1. the M2073G-S08-R of UTC is the drag cup fan motor driving circuit of core composition, such as attached drawing 4, effect
It is the rotor interaction that hollow cup coil is driven to generate magnetic field and fan motor, fan propeller is pushed persistently to rotate, by following
Electronic component is formed：
Hall element IC1, two-channel low voltage power amplifier IC2, capacitance C1, C2, diode D1, resistance：R1、R2、
Coil windings Coil 1, Coil 2, each electronic component function are as follows.
Fan motor drive IC2：M2073G-S08 is two-channel low voltage power amplifier, and the effect is that driving is straight
The coil windings and fan propeller magnetic field interaction, driving fan rotor for flowing brushless fan motor persistently rotate.UTC
Its feature of M2073G-S08L：Noise performance is excellent, circuit output driving force is big, at low cost.
Hall element IC1：Its effect of HW101A is detection fan motor rotor, detects the position of rotor, is believed with its output
Number the fan motor stator current direction is guided mutually to switch.Change the direction in magnetic field, Hall element HW101A shares 4 pipes
Foot, there are two input terminal control electric current inputs, if extraneous give vertical magnetic field, other two pin output Hall electromotive
Gesture is the commutator of fan motor.Hall element HW101A is as HW108A NHE520 NHE528 functions.
Capacitance C1, C2：103rd, capacitance C1 is filter capacitor, removes the interference signal of input power, and capacitance C1 is coupling electricity
Hold, high-frequency signal access, low-frequency current is prevented to enter weak electricity system, makes circuit more stable.
Resistance：R1=1.5k R2=360K R1 are pull-up resistor, and R1, R2 composition negative-feedback are put into road, allow faint electricity
It flows more stable after signal amplifies.
Diode D1：1N4148WS, protection IC2 will not puncture when positive and negative anodes.
Hollow cup coil winding Coil 1, Coil 2, appearance and size, the number of turn are the same, after power on circuitry, generate magnetic field and wind
Rotor interaction is fanned, fan propeller is pushed persistently to rotate.
2. UTC 3414G-P08 are the drag cup fan motor driving circuit of core composition, effect is driving drag cup
Coil generates magnetic field and the rotor of fan motor interacts, and fan propeller is pushed persistently to rotate, is made of following electronic component：
Hall element IC1, fan motor drive IC2, capacitance C1, diode D1, resistance：R1、R2、R3、R4、R5、R6.
Coil windings Coil 1, Coil 2, each electronic component function are as follows.
Hall element IC1：Its effect of HW101A is the position for detecting magnetic field, changes sense of current, makes coil windings magnetic
Field sends variation.
Fan motor drive IC2：UTC 3414G-P08 are two-channel low voltage power amplifiers, and the effect is to drive
The coil windings and fan propeller magnetic field interaction, driving fan rotor of dynamic DC brushless fan motor persistently rotate.UTC
Its feature of 3414G-P08：Noise performance is excellent, circuit output driving force is big, it is at low cost, small, be suitble to do mini-fan
Motor.
Capacitance C1,103 filter capacitors remove the interference signal of input power,
Diode D1：1N4148WS, protection IC2 will not puncture when positive and negative anodes
Resistance：R1、R2、R3、R4、R5、R6.R1：For pull-up resistor, by signal clamper in high level, while play current limliting and make
With.The output current of fan motor, R2 can be adjusted：For pull down resistor, uncertain signal is passed through into a resistance, clamper
In low level, change R1 R2 can adjust the size of fan motor electric current and the startup ability of fan, R3 and R5, R4 and R6 with
UTC 3414G-P08 form negative feedback amplifier circuit, improve the stability of amplifying circuit, reduce gain, inhibit feedback loop
Interior noise jamming reduces influence to input and output resistance, reduces non-linear distortion.
Hollow cup coil winding Coil 1, Coil 2, appearance and size, the number of turn are the same, after power on circuitry, generate magnetic field and wind
Rotor interaction is fanned, fan propeller is pushed persistently to rotate.
3. APX9277XI-TRG is the drag cup fan motor driving circuit of core composition, effect is driving drag cup
Coil generates magnetic field and the rotor of fan motor interacts, and fan propeller is pushed persistently to rotate, is made of following electronic component：
Hall element IC1, driving ICIC2, capacitance C1, diode D1, resistance：R1、R2.Coil windings Coil 1, Coil 2, each electronics
Element function is as follows.
Hall element IC1：Its effect of HW101A is the position for detecting magnetic field, changes sense of current, makes coil windings magnetic
Field sends variation.
Fan motor drive IC2：APX9277XI-TRG is the amplifier formed using BTL circuits, the effect
It is that the coil windings of DC brushless fan motor and fan propeller magnetic field interaction, driving fan rotor is driven persistently to rotate.
Its feature of APX9277XI-TRG：Ensure that noise performance is excellent, BTL circuits meet powerful fan by the way of single-phase full wave
The driving requirement of motor, the features such as voltage use scope is wide, small, it is suitble to make mini-fan motor.
Capacitance C1,103 filter capacitors remove the interference signal of input power,
Diode D1：1N4148WS, protection IC2 will not puncture when positive and negative anodes.
Resistance：R1、R2R1：For pull-up resistor, by signal clamper in high level, while metering function is played.Wind can be adjusted
Fan the output current of motor, R2：For pull down resistor, by uncertain signal by a resistance, clamper is in low level, change
R1 R2 can adjust the size of fan motor electric current and the startup ability of fan.
Hollow cup coil winding Coil 1, Coil 2, appearance and size, the number of turn are the same, after power on circuitry, generate magnetic field and wind
Rotor interaction is fanned, fan propeller is pushed persistently to rotate.
3 fan motor rotors are by 3 impellers；4 axis；5 magnet steel yoke plates；6 magnet steel；7 impeller washers form, and effect is for fan
Motor rotation provides permanent magnetic field, when impeller wind motor rotates, generates air quantity, static pressure, plays cooling effect.3 impellers rotate,
It radiates to heater, heat is led out.4 axis play the role of supporting impeller in wind motor rotation；It is wind motor rotation
The center turned；5 magnet steel yoke plates and 6 magnet steel, 10 coil windings, 8 coil yoke plates, 9 then plate, 10 driving circuit PCBA, are working
The magnetic circuit of a closure is formed under state, the efficiency in magnetic field is improved, prevents magnetic leakage from influencing other elements, 6 magnet steel are fans
The flat permanent magnet of motor.7 impeller washers prevent dust from entering the oil volatilization of oiliness bearing and inside, indirectly extend wind
The service life of fan.
4th, the stator of fan motor drag cup construction is by 8, coil yoke plate 9 then plate；10 hollow cup coil windings；11 drive
Dynamic circuit PCBA, 16 conducting wires composition hollow-cup motor sub-component and 1 casing；2 oiliness bearings；12 axis are by plate；13 gasket, 14 screw
The case component of composition is formed；It is detecting rotor-position that it, which is acted on, changes sense of current, coil windings magnetic field is made to send variation
It is persistently rotated with rotor field interaction driving fan rotor and generates air quantity, static pressure, play cooling effect.Case component structure its
Effect is fixed, support fan motor rotor, and fixation hollow cup motor sub-component, guided constraint local air circulate, so as to make
Fan motor reaches better heat dissipation effect.
Compared with prior art, the present invention discloses drag cup DC brushless fan motor, there is prominent energy conservation characteristic, sensitive control
Characteristic processed and stable operation characteristic, long lifespan, simple production process, small power consumption, efficient, volume weight is small, electromagnetic noise is small
The features such as.To provide superior heat radiation to space, weight, energy consumption, service life, the micro computer for having strict demand, PAD, unmanned plane etc.
Solution.
Description of the drawings：
Fig. 1 is the exploded perspective view of novel hollow cup DC brushless fan motor.
Fig. 2 is the sectional schematic diagram after the assembling of novel hollow cup DC brushless fan motor.
Fig. 3 is the driver circuit schematic diagram of novel hollow cup DC brushless fan motor, is with UTC 3414G-P08 motors
Driver is the circuit diagram of core connection.
Fig. 4 is the driver circuit schematic diagram of novel hollow cup DC brushless fan motor, is the M2073G-S08-R with UTC
Motor driver is the circuit diagram of core connection.
Fig. 5 is the driver circuit schematic diagram of novel hollow cup DC brushless fan motor, is to reach electronics with Taiwan cyclopentadienyl
APX9277XI-TRG motor drivers are the circuit diagram of core connection.
Specific embodiment
[embodiment 1] is below by way of examples and with reference to the accompanying drawings 1, Fig. 2, Fig. 5 be to drag cup fan of the present invention
Motor further illustrates.
[embodiment 1]
1st, before fan group is stood, first fan propeller is completed, the rotor of fan is by fan motor rotor by 3 impellers；4 axis；5
Magnet steel yoke plate；6 magnet steel；7 impeller washers form；3 impellers, 4 axis, 5 magnet steel yoke plates generate leaf after the integrated molding of mold molding factory
Wheel assembly, with reference to the accompanying drawings 2, after 6 magnet steel are pressed into impeller assembly, the surface of 6 magnet steel will be close at 5 magnet steel yoke plate surfaces 51,6 magnetic
The internal diameter size that the outer diameter 61 and impeller of steel put at magnet steel 31 is interference fit, will not be taken off after ensureing 6 magnet steel press-in impeller assembly
It falls.Finally the root for being pressed into 4 axis of impeller of 7 impeller washer close-fittings.Fan motor rotor of the present invention in this way is with regard to complete
Cheng Liao.
2nd, the driver circuit schematic diagram of the fan motor connected into according to the mode of Fig. 5, Design PCB LAYOUT figures, patch
After form 11 driving circuit PCBA.Hall element IC1：112 Hall elements that HW101A must be placed into 11 driving circuit PCBA are empty
It is interior, hole 92 and 113, hole 91 and 111 be aligned after, 9 then plate be attached to above 11 driving circuit PCBA；Hole 91 and 81,92 and of hole
82 alignment after, 8, coil yoke plate be attached to 9 then plate stick face；11 driving circuit PCBA and 8, coil yoke plate is made to be connected to one
Rise, hole 91 and 81, hole 92 and 82 be aligned after, then above coil yoke plate one piece 9 then plate, 10 hollow cup coil windings are bonded in
9 then on plate.Last 16 conducting wire is welded on above 11 driving circuit PCBA, the mode group with superposition that such present invention relates to
Into hollow-cup motor sub-component just complete.Space has been saved in this way, makes fan motor lighter, thinner.
3rd, 2 oiliness bearings are pressed into the design position of 1 casing；Hollow-cup motor sub-component is inserted into 1 casing newel again
It is interior, and fixed with two 14 screws, fan motor rotor is inserted into 2 oiliness bearing centre bores, 15 c-type snap rings are caught in leaf
It takes turns in 41 slot of 4 axis, the outer diameter of 15 c-type snap rings is more than oiliness bearing hole internal diameter, prevents rotor from coming off.Finally
12 axis of 13 gaskets are put well after by plate, are caught at 1 casing 1-A, the drag cup DC brushless fan motor that such present invention relates to is just
It completes.As shown in Figure 2.
Specific embodiment described herein only illustrates the present invention.With UTC 3414G-P08 and UTC
M2073G-S08-R motor drivers be core connection circuit motor drive circuit, be used in the present invention drag cup direct current without
It, can be to institute with those skilled in the art also without departing from the Spirit Essence of the present invention on brush fan motor
The specific embodiment of description does various modifications or additions or substitutes in a similar way, but without departing from this hair
It is bright or beyond the scope of the appended claims.
Claims (7)
1. the present invention disclose novel drag cup DC brushless fan motor by：1 casing；2 oiliness bearings；3 impellers；4 axis；5 magnetic
Steel yoke plate；6 magnet steel；7 impeller washers 8, coil yoke plate 9 then plate；10 hollow cup coil windings；11 driving circuit PCBA；12 axis
By plate；13 gaskets；14 screws；15 retainer rings；16 conducting wire components are formed, it is characterized in that：Employ the hollow of axial Magnetic Field Design
The stator of cup construction, and the hollow-cup motor sub-component formed in a manner of superposition, and with key screw hollow-cup motor sub-component
It is fixed on case component, then fan motor rotor is inserted into oiliness bearing centre bore, prevents fan motor from turning with 15C type snap rings
Son comes off, flies out.With axis support is provided for impeller rotation by board.
2. 11 driving circuit PCBA in claim 1, it is characterized in that it is core as fan motor to use APX9277XI-TRG
Driver, driving coil winding, using commutators of the HW101A-C as fan motor, and connected in the way of attached drawing 5
Circuit.
3. 11 driving circuit PCBA in claim 1, it is characterized in that the M2073G-S08-R for using UTC is core as fan
Motor driver, driving coil winding using commutators of the HW101A-C as fan motor, and connect in the way of attached drawing 5
The circuit connect.
4. 11 driving circuit PCBA in claim 1, it is characterized in that it is core as fan motor to use UTC 3414G-P08
Driver, driving coil winding, using commutators of the HW101A-C as fan motor, and the electricity connected according to 3 mode of attached drawing
Road.
5. Hall HW101A-C in claim 2 in 11 driving circuit PCBA it is characterized in that：The function of Hall HW101A-C with
HW108A NHE520 NHE528 functions are the same, encapsulation it is different, Hall HW108A NHE520 NHE528 respectively with
The circuit that APX9277XI-TRG connects in succession in the way of Fig. 5.
6. Hall HW101A-C in claim 3 in 11 driving circuit PCBA it is characterized in that：The function of Hall HW101A-C with
HW108A NHE520 NHE528 functions are the same, and encapsulation is different.Hall HW108A NHE520 NHE528 are respectively with UTC's
The circuit that M2073G-S08-R connects in succession in the way of Fig. 4.
7. Hall HW101A-C in claim 4 in 11 driving circuit PCBA it is characterized in that：The function of Hall HW101A-C with
HW108A NHE520 NHE528 functions are the same, and encapsulation is different.Hall HW108A NHE520 NHE528 are respectively with UTC's
The circuit that M2073G-S08-RG is connected in the way of Fig. 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611201754.9A CN108233659A (en) | 2016-12-22 | 2016-12-22 | Novel hollow cup position-sensor-free DC fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611201754.9A CN108233659A (en) | 2016-12-22 | 2016-12-22 | Novel hollow cup position-sensor-free DC fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108233659A true CN108233659A (en) | 2018-06-29 |
Family
ID=62657188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611201754.9A Pending CN108233659A (en) | 2016-12-22 | 2016-12-22 | Novel hollow cup position-sensor-free DC fan |
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| Country | Link |
|---|---|
| CN (1) | CN108233659A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005261140A (en) * | 2004-03-15 | 2005-09-22 | Nippon Densan Corp | Dc brushless motor and fan |
| WO2007123431A1 (en) * | 2006-04-20 | 2007-11-01 | Veniamin Iakovlevich Veinberg | Heat fan |
| CN102518562A (en) * | 2011-12-22 | 2012-06-27 | 重庆大学 | Miniature high-efficiency wind power gaining device |
| CN104734451A (en) * | 2015-01-23 | 2015-06-24 | 亚翌斯风电机(上海)有限公司 | Hollow cup position-sensorless three-phase direct-current fan motor |
| CN105703671A (en) * | 2016-01-19 | 2016-06-22 | 亚翌斯风电机(上海)有限公司 | DC brushless fan motor driving circuit of double low-noise operational amplifier |
-
2016
- 2016-12-22 CN CN201611201754.9A patent/CN108233659A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005261140A (en) * | 2004-03-15 | 2005-09-22 | Nippon Densan Corp | Dc brushless motor and fan |
| WO2007123431A1 (en) * | 2006-04-20 | 2007-11-01 | Veniamin Iakovlevich Veinberg | Heat fan |
| CN102518562A (en) * | 2011-12-22 | 2012-06-27 | 重庆大学 | Miniature high-efficiency wind power gaining device |
| CN104734451A (en) * | 2015-01-23 | 2015-06-24 | 亚翌斯风电机(上海)有限公司 | Hollow cup position-sensorless three-phase direct-current fan motor |
| CN105703671A (en) * | 2016-01-19 | 2016-06-22 | 亚翌斯风电机(上海)有限公司 | DC brushless fan motor driving circuit of double low-noise operational amplifier |
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Application publication date: 20180629 |
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