CN107725426A - Permanent magnetic DC brushless fan - Google Patents
Permanent magnetic DC brushless fan Download PDFInfo
- Publication number
- CN107725426A CN107725426A CN201710859535.8A CN201710859535A CN107725426A CN 107725426 A CN107725426 A CN 107725426A CN 201710859535 A CN201710859535 A CN 201710859535A CN 107725426 A CN107725426 A CN 107725426A
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- Prior art keywords
- resistance
- module
- electric capacity
- motor drive
- pins
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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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
- F04D25/0633—Details of the magnetic circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
- F04D25/0646—Details of the stator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0693—Details or arrangements of the wiring
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
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- 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
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- 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
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Brushless Motors (AREA)
Abstract
The invention discloses a kind of permanent magnetic DC brushless fan, including base assembly, flabellum component, stator module, rotor assembly and driver circuit board component, base assembly includes bearing, jump ring, circular small footprint and big base, flabellum component includes flabellum, rotating shaft and axle sleeve, stator module includes coiling terminals, upper plastic skeleton, stator movement and lower plastic skeleton, rotor assembly includes magnet ring and iron ring, magnet ring is fixed in iron ring, iron ring is embedded in the groove of flabellum center, stator module is socketed in after being connected with driver circuit board component outside hollow cylinder raised at the small footprint center.Solves the problem of refrigerator blower fan efficiency is low, noise is big, poor reliability.
Description
Technical field
The invention belongs to refrigerator technical field of motors, is related to a kind of permanent magnetic DC brushless fan.
Background technology
At present, the brushless electric machine that is c-type motor with cup rotor, also there is sine wave control of most of refrigerator with fan electromotor, C
Type motor with cup rotor is simple in construction, but efficiency low noise is big, and poor controllability, moisture-resistance is poor, and Energy Efficiency Ratio is not high.Most of ice
Rotating shaft is typically fixed on rotor iron ring by case with DC fan, increases the weight of rotor iron ring and complicated, alignment
Also require higher, production difficulty is larger.
As the improvement of people's living standards, the requirement that the proposition to refrigerator functions and horsepower requirements is higher.
The content of the invention
It is an object of the invention to provide a kind of permanent magnetic DC brushless fan, solves refrigerator wind present in prior art
Function effect is low, noise is big, the problem of poor reliability.
The technical solution adopted in the present invention is permanent magnetic DC brushless fan, including base assembly, flabellum component, fixed
Sub-component, rotor assembly and driver circuit board component, base assembly includes bearing, jump ring, the small footprint of circle and big base, small
Base and big base are screwed in together, raised hollow cylinder are provided with the center of small footprint, bearing holder (housing, cover) is in sky
In heart cylinder, jump ring is fixed on the outside of the small footprint hollow cylinder other end, and flabellum component includes flabellum, rotating shaft and axle
Set, rotating shaft one end cast installed in the flabellum center at, axle sleeve is enclosed in rotating shaft and contacted with flabellum, rotating shaft it is another
End is inserted in the bearing and stretched out outside the small footprint, and the part that small footprint is stretched out in rotating shaft is blocked by the jump ring, stator pack
Part includes coiling terminals, upper plastic skeleton, stator movement and lower plastic skeleton, and upper plastic skeleton and lower plastic skeleton difference are embedding
The upper and lower ends of the stator movement are enclosed on, coiling terminals are plugged in plastic skeleton and lower plastic skeleton, state coiling and connect
Line end is provided with 3, is circularly and evenly distributed along stator wicking surface, and rotor assembly includes magnet ring and iron ring, and magnet ring is fixed on
In iron ring, iron ring is embedded in the groove of flabellum center, circular hole is offered among driver circuit board component, circular is provided with
3 apertures corresponding with stating coiling terminals, the coiling terminals on stator module pass through after aperture with driver circuit board component
Weld together, stator module is socketed in hollow cylinder raised at the small footprint center after being connected with driver circuit board component
External face.
The features of the present invention also resides in,
Driver circuit board component includes drive circuit board, logical transition module, speed feedback module, power module, electronics
Inverting module and motor drive module, logical transition module, speed feedback module, power module, electronic commutation module and motor
Drive module is arranged on the drive circuit board, speed feedback module, logical transition module, motor drive module and electronics
Inverting module is sequentially connected, and speed feedback module, logical transition module, motor drive module and electronic commutation module are and power supply
Module connects.
The circuit of logical transition module includes logical transition chip U1, resistance R3, resistance R4, resistance R6, resistance R7, three
Pole pipe Q2, diode D2, resistance R2, electric capacity C1, logical transition chip U1 input 1 are connected with resistance R4, resistance R3, electricity
R3 other ends ground connection is hindered, logical transition chip U1 input 2 is connected with resistance R7 and resistance R6 one end, the resistance R6 other ends
Ground connection, logical transition chip U1 output end connecting triode Q2 base stage, triode Q2 emitter grounding, triode Q2 collection
Electrode connection resistance R8, diode D2 and resistance R2, diode the D2 other end ground connection, resistance R2 other ends connection electric capacity C1 mono-
End, electric capacity C1 other ends ground connection.
The circuit of speed feedback module includes Hall sensor H2, resistance R5, resistance R8, and Hall sensor H2 inputs connect
Connecting resistance R8 one end, Hall sensor H2 earth terminals ground connection, Hall sensor H2 output end connect resistance R5 one end and with
The connection of level circuitous resistance R4 one end, the resistance R5 other ends access one end of R7 in lower logical modular converter circuit.
The circuit of power module include paster insurance F1, diode D1, electric capacity C2, electric capacity C3, paster insurance F1 one end with
Positive source connects, other end connection diode D1, electric capacity C2 and electric capacity C3, the diode D1, electric capacity C2 and electric capacity C3
The other end be grounded.
The circuit of electronic commutation module includes Hall sensor U2, No. 1 pin access subordinate motor driving of Hall sensor
Driving chip U3 No. 2 pins in modular circuit, No. 3 pins of Hall sensor, which are accessed in subordinate's motor drive module circuits, to be driven
Chip U3 No. 4 pins, No. 3 of driving chip U3 are drawn in No. 4 pins of Hall sensor access subordinate motor drive module circuits
Pin, No. 2 pin ground connection of Hall sensor.
The circuit of motor drive module includes driving chip U3, resistance R9, resistance R10, resistance R11, resistance R12, electric capacity
C5, driving chip U3 No. 1 pin connect the input 2 of logic chip U1 in the logical transition module, No. 5 of driving chip U3
Pin connects to be connected with electric capacity C4 and resistance R9 one end, electric capacity C4 other ends ground connection, the resistance R9 other ends and resistance R10,
Resistance R11 and motor drive ic U3 No. 7 pins connection, resistance R10 and the resistance R11 other end are grounded, electricity
Resistance R12 one end is connected with motor drive ic U3 No. 11 pins, resistance R12 other end ground connection, electric capacity C5 one end and electricity
Machine driving chip U3 No. 13 pins connection, the other end ground connection, driving chip U3 12, No. 14 pins ground connection, No. 6 and No. 8 draw
Pin is the output end of motor drive ic, is connected with stator module coiling terminals.
The chip of motor drive module uses BD6971FV chips.
The blade number of flabellum is 10~12.
The beneficial effects of the invention are as follows：Freezing room air can be blown into a kind of permanent magnetic DC of refrigerating chamber by being provided for refrigerator
Brushless fan, the air cooling effect of refrigerating chamber is realized, structure of the invention is simple, and controllability is good and energy consumption is low.
Brief description of the drawings
Fig. 1 is the structure chart of permanent magnetic DC brushless fan of the present invention；
Fig. 2 is the face upwarding assumption diagram of permanent magnetic DC brushless fan of the present invention；
Fig. 3 is the sectional structure chart of permanent magnetic DC brushless fan of the present invention；
Fig. 4 is the stator member structure figure of permanent magnetic DC brushless fan of the present invention；
Fig. 5 is the drive circuit module structure chart of permanent magnetic DC brushless fan of the present invention；
Fig. 6 is the driver circuit schematic diagram of permanent magnetic DC brushless fan of the present invention.
In figure, 1. flabellums, 2. rotating shafts, 3. axle sleeves, 4. bearings, 5. stator modules, 6. small footprints, 7. big bases, 8. jump rings,
9. magnet ring, 10. iron rings, 11. drive circuit boards, 12. logical transition modules, 13. speed feedback modules, 14. power modules, 15.
Electronic commutation module, 16. motor drive modules；
501. coiling terminals, plastic skeleton on 502., 503. stator movements, 504. times plastic skeletons.
Embodiment
The present invention is described in detail with reference to the accompanying drawings and detailed description.
Permanent magnetic DC brushless fan of the present invention, structure as shown in Figure 1, Figure 2 and Figure 3, including base assembly, flabellum group
Part, stator module, rotor assembly and driver circuit board component, base assembly include bearing 4, jump ring 8, the circular and of small footprint 6
Big base 7, small footprint 6 and big base 7 are screwed in together, and raised hollow cylinder is provided with the center of small footprint 6
Body, bearing 4 are enclosed in hollow cylinder body, and jump ring 8 is fixed on the outside of the hollow cylinder other end of small footprint 6, flabellum group
Part includes flabellum 1, rotating shaft 2 and axle sleeve 3, and at the center of the flabellum 1, axle sleeve 3 is enclosed on rotating shaft for one end cast of rotating shaft 2
Contact, in the other end insertion bearing 4 of rotating shaft 2 and stretch out outside the small footprint 6, small footprint 6 is stretched out in rotating shaft 2 on 2 and with flabellum 1
Part blocked by the jump ring 8, the structure of stator module is as shown in figure 4, including coiling terminals 501, upper plastic skeleton
502nd, stator movement 503 and lower plastic skeleton 504, upper plastic skeleton 502 and lower plastic skeleton 504 are respectively nested in stator
The upper and lower ends of core 503, coiling terminals 501 are plugged in plastic skeleton 502 and lower plastic skeleton 504, state coiling wiring
End 501 is provided with 3, is circularly and evenly distributed along the surface of stator movement 503, rotor assembly includes magnet ring 9 and iron ring 10, magnet ring
9 are fixed in iron ring 10, and iron ring 10 is embedded in the groove of the center of flabellum 11, and circular hole is offered among driver circuit board component,
Circular is provided with 3 with stating 501 corresponding aperture of coiling terminals, and the coiling terminals 501 on stator module are through small
Kong Houyu driver circuit board components weld together, and stator module is socketed in small footprint after being connected with the driver circuit board component
At 6 centers outside raised hollow cylinder.
The structure of driver circuit board component is as shown in figure 5, anti-including drive circuit board 11, logical transition module 12, rotating speed
Present module 13, power module 14, electronic commutation module 15 and motor drive module 16, logical transition module 12, speed feedback mould
Block 13, power module 14, electronic commutation module 15 and motor drive module 16 are arranged on the drive circuit board 11, rotating speed
Feedback module 13, logical transition module 12, motor drive module 16 and electronic commutation module 15 are sequentially connected, speed feedback module
13rd, logical transition module 12, motor drive module 16 and electronic commutation module 15 are connected with power module 14.
The circuit structure of permanent magnetic DC brushless fan of the present invention is as shown in fig. 6, the circuit of logical transition module 12 includes
Logical transition chip U1, resistance R3, resistance R4, resistance R6, resistance R7, triode Q2, diode D2, resistance R2, electric capacity C1, are patrolled
The input 1 for collecting conversion chip U1 is connected with resistance R4, resistance R3, and resistance R3 other ends ground connection, logical transition chip U1's is defeated
Enter end 2 to be connected with resistance R7 and resistance R6 one end, resistance R6 other ends ground connection, logical transition chip U1 output end connection
Triode Q2 base stage, triode Q2 emitter grounding, triode Q2 colelctor electrode connection resistance R8, diode D2 and resistance
R2, diode the D2 other end are grounded, resistance R2 other ends connection electric capacity C1 one end, electric capacity C1 other ends ground connection.
The circuit of speed feedback module 13 includes Hall sensor H2, resistance R5, resistance R8, Hall sensor H2 inputs
Connect resistance R8 one end, Hall sensor H2 earth terminals ground connection, Hall sensor H2 output end connection resistance R5 one end and with
Subordinate circuitous resistance R4 one end connects, R7 one end in the circuit of resistance R5 other ends access lower logical modular converter 12.
The circuit of power module 14 includes paster insurance F1, diode D1, electric capacity C2, electric capacity C3, paster insurance F1 one end
It is connected with positive source, the other end connects the another of diode D1, electric capacity C2 and electric capacity C3, diode D1, electric capacity C2 and electric capacity C3
One end is grounded.
The circuit of electronic commutation module 15 includes Hall sensor U2, and No. 1 pin access subordinate motor of Hall sensor drives
Driving chip U3 No. 2 pins in dynamic modular circuit, No. 3 pins of Hall sensor, which are accessed in subordinate's motor drive module circuits, to be driven
Dynamic chip U3 No. 4 pins, No. 4 pins of Hall sensor access No. 3 of driving chip U3 in subordinate's motor drive module circuits
Pin, No. 2 pin ground connection of Hall sensor.
The circuit of motor drive module 16 includes driving chip U3, resistance R9, resistance R10, resistance R11, resistance R12, electricity
Holding C5, driving chip U3 No. 1 pin connects the input 2 of logic chip U1 in the logical transition module, and the 5 of driving chip U3
Number pin connects to be connected with electric capacity C4 and resistance R9 one end, electric capacity C4 other ends ground connection, the resistance R9 other ends and resistance R10, electricity
No. 7 pins for hindering R11 and motor drive ic U3 are connected, and resistance R10 and the resistance R11 other end are grounded, resistance
R12 one end is connected with motor drive ic U3 No. 11 pins, resistance R12 other end ground connection, electric capacity C5 one end and motor
Driving chip U3 No. 13 pins connection, other end ground connection, driving chip U3 12, No. 14 pins ground connection, No. 6 and No. 8 pins
For the output end of motor drive ic, it is connected with stator module coiling terminals 501.
The chip of motor drive module 16 uses BD6971FV chips.
The blade number of flabellum 1 is 10~12.
Permanent magnetic DC brushless fan of the present invention, when use, motor connects 12V DC power supply, electronic commutation module
The magnetic field of Hall element inductiopn rotor magnet ring in 15 exports square wave into the motor drive ic of motor drive module 16, drives
Dynamic chip exports alternate electric signal to the motor stator component of connection, stator module generation and 9 corresponding magnetic field of magnet ring, pushes away
Turn sub-component rotates, and rotor assembly drives the flabellum 1 of connection fixed thereto to rotate after rotating, so as to realize the rotation of blower fan；
Concurrently, alternate electric signal caused by the magnetic field output of the Hall element reaction magnetic ring 9 of speed feedback module 13, and will
Electric signal output is used for by electric signal transmission into the logical transition chip of logical transition module 12, and by logical transition chip
In the external component being connected with blower fan.
Claims (9)
1. permanent magnetic DC brushless fan, it is characterised in that including base assembly, flabellum component, stator module, rotor assembly and
Driver circuit board component, the base assembly include bearing (4), jump ring (8), circular small footprint (6) and big base (7), institute
State small footprint (6) and big base (7) is screwed in together, be provided with the center of the small footprint (6) raised hollow
Cylinder, the bearing (4) are enclosed in hollow cylinder body, and it is remote that the jump ring (8) is fixed on the small footprint (6) hollow cylinder
From the outside of the other end of the bearing (4), the flabellum component includes flabellum (1), rotating shaft (2) and axle sleeve (3), the rotating shaft
(2) at the center of the flabellum (1), the axle sleeve (3) is enclosed in rotating shaft (2) and connect with flabellum (1) for one end cast
Touch, the other end of the rotating shaft (2) is inserted in the bearing (4) and stretches out the small footprint (6) outside, and the rotating shaft (2) is stretched out
The part of small footprint (6) is blocked by the jump ring (8), and the stator module includes coiling terminals (501), upper plastic skeleton
(502), stator movement (503) and lower plastic skeleton (504), the upper plastic skeleton (502) and the lower plastic skeleton (504)
The upper and lower ends of the stator movement (503) are respectively nested in, the coiling terminals (501) are plugged on the upper plastic skeleton
(502) and in lower plastic skeleton (504), the coiling terminals (501) of stating are provided with 3, along stator movement (503) table
Face is circularly and evenly distributed, and the rotor assembly includes magnet ring (9) and iron ring (10), and the magnet ring (9) is fixed on the iron ring
(10) in, the iron ring (10) is embedded in the groove of flabellum (11) center, and circle is offered among the driver circuit board component
Hole, circular are provided with 3 and state the corresponding aperture of coiling terminals (501) with described, and the coiling on the stator module connects
Line end (501) welds together after passing through aperture with the driver circuit board component, the stator module and the driver circuit
It is socketed in after board component connection outside hollow cylinder raised at the small footprint (6) center.
2. permanent magnetic DC brushless fan according to claim 1, it is characterised in that the driver circuit board component includes
Drive circuit board (11), logical transition module (12), speed feedback module (13), power module (14), electronic commutation module
(15) and motor drive module (16), the logical transition module (12), speed feedback module (13), power module (14), electricity
Sub- inverting module (15) and motor drive module (16) are arranged on the drive circuit board (11), the speed feedback module
(13), logical transition module (12), motor drive module (16) and electronic commutation module (15) are sequentially connected, the speed feedback
Module (13), logical transition module (12), motor drive module (16) and electronic commutation module (15) with power module (14)
Connection.
3. permanent magnetic DC brushless fan according to claim 2, it is characterised in that the logical transition module (12)
Circuit include logical transition chip U1, resistance R3, resistance R4, resistance R6, resistance R7, triode Q2, diode D2, resistance R2,
Electric capacity C1, the input 1 of the logical transition chip U1 are connected with resistance R4, resistance R3, the resistance R3 other ends ground connection, institute
The input 2 for stating logical transition chip U1 is connected with resistance R7 and resistance R6 one end, the resistance R6 other ends ground connection, described
Logical transition chip U1 output end connecting triode Q2 base stage, the emitter grounding of the triode Q2, the triode Q2
Colelctor electrode connection resistance R8, diode D2 and resistance R2, the diode D2 other ends ground connection, the resistance R2 other ends connect
Connect electric capacity C1 one end, the electric capacity C1 other ends ground connection.
4. permanent magnetic DC brushless fan according to claim 2, it is characterised in that the speed feedback module (13)
Circuit includes Hall sensor H2, resistance R5, resistance R8, described Hall sensor H2 inputs connection resistance R8 one end, Hall
Sensor H2 earth terminals are grounded, and Hall sensor H2 output end connects resistance R5 one end and connected with subordinate circuitous resistance R4 one end
Connect, R7 one end in described resistance R5 other ends access lower logical modular converter (12) circuit.
5. permanent magnetic DC brushless fan according to claim 2, it is characterised in that the circuit of the power module (14)
Including paster insurance F1, diode D1, electric capacity C2, electric capacity C3, described paster insurance F1 one end is connected with positive source, the other end
Connection diode D1, electric capacity C2 and electric capacity C3, the diode D1, electric capacity C2 and electric capacity the C3 other end are grounded.
6. permanent magnetic DC brushless fan according to claim 2, it is characterised in that the electronic commutation module (15)
Circuit includes Hall sensor U2, and described No. 1 pin of Hall sensor accesses driving chip in subordinate's motor drive module circuit
U3 No. 2 pins, No. 4 of driving chip U3 are drawn in No. 3 pins access subordinate motor drive module circuits of the Hall sensor
Pin, driving chip U3 No. 3 pins in No. 4 pins access subordinate motor drive module circuits of the Hall sensor, it is described suddenly
You are grounded No. 2 pins of sensor.
7. permanent magnetic DC brushless fan according to claim 2, it is characterised in that the motor drive module (16)
Circuit includes driving chip U3, resistance R9, resistance R10, resistance R11, resistance R12, electric capacity C5, No. 1 of the driving chip U3
Pin connects the input 2 of logic chip U1 in the logical transition module, and No. 5 pins of the driving chip U3 connect and electric capacity C4
Connected with resistance R9 one end, electric capacity C4 other ends ground connection, the resistance R9 other ends and resistance R10, resistance R11, with
And motor drive ic U3 No. 7 pins connect, the resistance R10 and the resistance R11 other end are grounded, the resistance
R12 one end is connected with motor drive ic U3 No. 11 pins, the other end ground connection of the resistance R12, the electric capacity C5 mono-
End is connected with motor drive ic U3 No. 13 pins, other end ground connection, 12, No. 14 pins ground connection of the driving chip U3,6
Number and output end that No. 8 pins are motor drive ic, be connected with the stator module coiling terminals (501).
8. permanent magnetic DC brushless fan according to claim 7, it is characterised in that the motor drive module (16)
Chip uses BD6971FV chips.
9. permanent magnetic DC brushless fan according to claim 1, it is characterised in that the blade number of the flabellum (1)
For 10~12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710859535.8A CN107725426A (en) | 2017-09-21 | 2017-09-21 | Permanent magnetic DC brushless fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710859535.8A CN107725426A (en) | 2017-09-21 | 2017-09-21 | Permanent magnetic DC brushless fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107725426A true CN107725426A (en) | 2018-02-23 |
Family
ID=61206373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710859535.8A Pending CN107725426A (en) | 2017-09-21 | 2017-09-21 | Permanent magnetic DC brushless fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107725426A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708868A (en) * | 2018-06-04 | 2018-10-26 | 彭希南 | A kind of frequency conversion axial flow fan |
| CN108777540A (en) * | 2018-06-01 | 2018-11-09 | 贵州航天林泉电机有限公司 | A kind of single-phase wind turbine incuding leakage field using linear hall-effect device |
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| CN102111026A (en) * | 2009-12-24 | 2011-06-29 | 台达电子工业股份有限公司 | Fan and motor thereof |
| CN102324795A (en) * | 2011-09-13 | 2012-01-18 | 东莞永立电机有限公司 | Stator component and radiating fan applying same |
| CN202634352U (en) * | 2012-07-09 | 2012-12-26 | 滨州学院 | Brushless direct-current electromotor control device for bladeless fan |
| US20160138598A1 (en) * | 2014-11-18 | 2016-05-19 | Lg Electronics Inc. | Fan-Motor Assembly And Refrigerator Having The Same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108777540A (en) * | 2018-06-01 | 2018-11-09 | 贵州航天林泉电机有限公司 | A kind of single-phase wind turbine incuding leakage field using linear hall-effect device |
| CN108708868A (en) * | 2018-06-04 | 2018-10-26 | 彭希南 | A kind of frequency conversion axial flow fan |
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Application publication date: 20180223 |