CN106224268A - DC permanent-magnetic brushless frequency conversion axial flow fan - Google Patents
DC permanent-magnetic brushless frequency conversion axial flow fan Download PDFInfo
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- CN106224268A CN106224268A CN201610823663.2A CN201610823663A CN106224268A CN 106224268 A CN106224268 A CN 106224268A CN 201610823663 A CN201610823663 A CN 201610823663A CN 106224268 A CN106224268 A CN 106224268A
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- Prior art keywords
- fan
- pcb
- permanent
- heat
- axial flow
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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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/007—Conjoint control of two or more different functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially adapted for elastic fluid pumps
-
- 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
-
- 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
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of DC permanent-magnetic brushless frequency conversion axial flow fan, including fan frame, impeller, cover dish, line bag, rotor core body, permanent magnet, stator core body, PCB, heat-dissipating frame, it is characterized by: described heat-dissipating frame uses aluminum alloy material, described PCB is the circular printed board that central authorities are with holes, PCB is welded with double-core single-chip microcomputer, pre-driver chip, VMOS power tube, its radiating surface is then screwed on the framework that the central authorities of heat-dissipating frame are hexagonal by horizontal mounting means, described cover dish is the hollow cylinder that there is division board a centre, it is equipped with a bearing B installation step at division board centre bit, cover dish is separated into two parts by division board.Blower fan proposed by the invention and the DC permanent-magnetic brushless frequency conversion axial flow fan scheme of motor integration, represent the developing direction of DC permanent-magnetic brushless frequency conversion axial flow fan, and its application prospect is the most wide.
Description
Technical field
The present invention relates to a kind of DC permanent-magnetic brushless frequency conversion axial flow fan, be mainly used in the fixing or ventilation of mobile device
Cooling and desiccant dehumidification.
Background technology
Gas is parallel to the blower fan of fan rotation shaft flowing, referred to as axial flow blower.Conventional electric fan, outdoor machine of air-conditioner fan
It it is exactly the blower fan run in axial flow mode.Such as, for the electric fan enjoyed the cool, it is all to be placed in fixed position and make air stream
Dynamic electric equipment, the room temperature wind energy of its blowout is accelerated human sweat's evaporation, is reduced shell temperature, thus obtain and be widely used.
It is said that in general, axial fan is not owing to changing the flow direction of air dielectric, it is typically used in that gas flow requirement is higher and pressure
Require relatively low occasion, the occasion of i.e. so-called Wind Volume lower resistance: i.e. for computer CPU, the heat radiation fall of high-power electronic device
Temperature, or be used for restaurant, gymnasium, meeting room, workshop, warehouse, swimming pool, the ventilation in greenhouse, air conditioning system, refrigeration system and do
Dry dehumidification system.
Traditional axial flow blower according to the Type division of motor-driven, can be divided into single phase ac shaded-pole drive, single-phase
Ac capacitor formula drives, AC/DC series excitation type motor drives.But this kind of type of drive is because using alternating current, thus limits
Make its range, typically can be only applied to exist the stationary applica-tions of alternating current power supply, and fan speed-regulating can only be by changing
Coil voltage, is divided into several fixing gear and carries out.Although the axial flow blower that AC/DC series excitation type motor drives can also be used
On the mobile apparatus, but inside it, there is brush and mechanical commutator, be particularly easy to owing to carbon distribution causes damage.
Use the axial flow blower that brushless, permanently excited direct current motor drives, owing to using direct current supply, not by line voltage ripple
Dynamic impact, can be widely used in the various mobile devices such as vehicle, boats and ships, spacecraft.Obviously, permanent magnet brushless dc
The advantage that motivation drives is fairly obvious, does not has brush and mechanical commutator in motor, all can realize stepless speed regulation,
Operate steadily, noise low, starting torque is big, has wider speed adjustable range, and operating rotational speed range is very big, can meet various operation mould
Rotation speed requirements under formula, can keep output torque under ultralow rotary regimes, and the life-span is long, and a lot of aspects have surmounted exchange
The performance of converter, can replace small-power AC variable-frequency speed regulation system completely.At energy-conservation aspect, brushless, permanently excited direct current motor
Employing permanent magnet excitation, it is not necessary to draw exciting current from electrical network, so without alternating flux in rotor, on rotor not only without copper loss but also
Without iron loss, good energy-conserving effect, efficiency is higher by about 10% than with capacity asynchronous motor.
Summary of the invention
1, a complete DC permanent-magnetic brushless frequency conversion axial flow fan should include four parts: one is the permanent magnetism producing power source
Brushless direct current motor；Two is the rotating part of band impeller；Three is the position sensor of detection rotor current location；Four are
Variable-frequency speed-regulating controller.
2, include four partial devices due to complete DC permanent-magnetic brushless frequency conversion axial flow fan, therefore install and use also fiber crops
Tired, needing to be coupled together four partial devices by inside and outside wiring, so once damaging, safeguarding quite inconvenient.
Accordingly, the present invention proposes a kind of DC permanent-magnetic brushless frequency conversion axial flow fan scheme, and the maximum feature of this invention is
Directly by integral for the thin consolidation required for DC permanent-magnetic brushless frequency conversion axial flow fan, and after optimized control algolithm, pass through
The mode of software softening eliminates hall position sensor, has compact conformation, installs and uses fall simple, with low cost, energy-conservation
Consumption, the feature of applicable large-scale production, have the most wide application prospect.
Technical scheme
To this end, the present invention proposes a kind of DC permanent-magnetic brushless frequency conversion axial flow fan design, its technical scheme is specific as follows:
DC permanent-magnetic brushless frequency conversion axial flow fan, including fan frame, impeller, cover dish, line bag, rotor core body, permanent magnet, determines
Sub-iron core, PCB, heat-dissipating frame, control cable, double-core single-chip microcomputer, pre-driver chip, VMOS power tube, its
It is characterized by:
Described heat-dissipating frame uses aluminum alloy material, and profile is cylinder, and cylinder has been engraved cylinder external screw thread, and dispel the heat frame
Frame center of inside position hollows out into hexagon, and heat-dissipating frame has four hangers, and the center of each hangers is porose, and screw may pass through
Fan frame fixing hole on fan frame hangers with holes with on heat-dissipating frame respectively is connected as one；
PCB is the circular printed board that central authorities are with holes, and the circumference of PCB is respectively uniformly distributed lacking of four arcs
Mouthful, it is ensured that PCB is embedded in heat-dissipating frame after walking around hangers, and PCB is welded with double-core single-chip microcomputer, pre-driver
Chip, uses the pin of the VMOS power tube of TOP220 encapsulation to be welded in PCB, and its radiating surface is then by horizontal installation
Mode is screwed on the framework that the central authorities of heat-dissipating frame are hexagonal, hexagonal every at most allow installations four
The VMOS power tube of individual TOP220 encapsulation；
Described cover dish is the hollow cylinder that there is division board a centre, is equipped with a bearing B at division board centre bit and installs
Step, cover dish is separated into two parts by division board, at one end inner wall belt female thread of cover dish, with prominent on other end inwall
Arc raised line, be wherein assembled with the heat-dissipating frame after PCB and screwed into the interior spiral shell of cover dish by its cylinder
In stricture of vagina, heat-dissipating frame (10) is made to be connected with cover dish；
Stator core body is to be formed by stacking by multi-disc silicon steel punching, stator core body has opening and arc groove, by wire wrapping
After entering the opening of rotor core body, can by rotor core body along arc groove direction insert be arranged on one end band arc raised line
Cover dish in, division board has the through wires hole for line bag, each coil outlet in line bag pass through through wires hole and PCB
It is connected,
The middle position of rotor core body is provided with rotary shaft, and the edge of rotor core body has location arc groove and embedding
Having the permanent magnet of tile, rotary shaft is assembled bearing A and bearing B respectively, bearing A is embedded into the bearing A peace of fan frame again
In dress step, bearing B is embedded in the bearing B installation step of cover dish demarcation strip；
With blade on impeller, the centre bit of impeller is equipped with a step cutting pattern containing ribs, and step cutting pattern center has one
Individual rotary shaft connecting hole, the threaded one end in rotary shaft is connected with the rotary shaft connecting hole of impeller.
Described fan frame uses aluminum alloy material, and outside is hexagonal, middle rounded, and fan frame has one
Wire output protector hole and four reinforcement ribs, wherein strengthen having line embedding groove on rib for one, and described control cable is along embedding
Wire casing cabling, one end passes extraction behind wire output protector hole, and the other end controlling cable is directly welded in PCB.
Described control cable is eight core cables, respectively: positive source (B+), power cathode (B-), promptly make
Dynamic (BRK), fan starting/stopping (BRK), blower fan rotating (F/R), speed governing (SPEED), Vc (+5V), common port (COM), its
In, fan starting/stopping (BRK) connects startup/shutdown switch, and positive/negative turn of (F/R) external motor of blower fan is positive/negative turns on pass, promptly
Braking (BRK) connects emergency stop switch, and described speed governing (SPEED) and Vc (+5V), the common external speed governing of common port (COM) turn
?.
It is integrated with high-speed multiply division arithmetic unit (iMDU) in described double-core singlechip chip simultaneously and is used for coordinating rotation
Turning vectored digital computing unit (iCORDIC) kernel, the I/O pin of double-core single-chip microcomputer is connected with pre-driver chip, VMOS merit
The control end of rate pipe is connected with pre-driver chip again.
The DC permanent-magnetic brushless frequency conversion axial flow fan that the present invention proposes has the advantages that:
1, DC permanent-magnetic brushless frequency conversion axial flow fan of the present invention, is integrated with brushless, permanently excited direct current motor, impeller and control
Device parts processed, it is achieved frequency control, drive, control Trinitarian function, use simple, easy for installation, it is achieved that system is
Save, total optimization.
2, on the topology, by fan frame, impeller, aluminium alloy heat-dissipating frame and the design of cover dish, well
Solving the integral structure of blower fan, motor and controller, compact conformation is reasonable, solve simultaneously the assembling of VMOS power tube and
Heat dissipation problem.
3, eliminate conventional position sensor Hall element, have employed based on back-EMF determination technology to determine rotor
Real time position, motor rotates from static beginning, have employed and accelerates from static beginning, until rotating speed is sufficiently large, then switches to
The three steps start technology of brushless direct current motor running status.
4, use efficient double-core single-chip microcomputer replace DSP control chip, solve DC permanent-magnetic brushless frequency conversion axial flow fan with
Contradiction between hardware spending, greatly reduces manufacturing cost.
Obviously, DC permanent-magnetic brushless frequency conversion axial flow fan of the present invention, it is the most no longer that a kind of monotechnics is integrated, combines
Close technology content to have had and be obviously improved, belong to a kind of brand-new DC frequency-changing axial flow blower, can extensively apply various fixing or
In mobile device.
Accompanying drawing explanation
Fig. 1 DC permanent-magnetic brushless frequency conversion axial flow fan outline drawing；
Fig. 2 DC permanent-magnetic brushless frequency conversion axial flow fan explosive view one；
Fig. 3 removes the interior views one after fan frame, impeller；
Fig. 4 removes the interior views two after fan frame, impeller；
Fig. 5 DC permanent-magnetic brushless frequency conversion axial flow fan explosive view two；
Fig. 6 DC permanent-magnetic brushless frequency conversion axial flow fan explosive view three；
Fig. 7 DC permanent-magnetic brushless frequency conversion axial flow fan explosive view four；
Fig. 8 DC permanent-magnetic brushless frequency conversion axial flow fan explosive view five；
Fig. 9 DC permanent-magnetic brushless frequency conversion axial flow fan explosive view six；
Figure 10 DC permanent-magnetic brushless frequency conversion axial flow fan explosive view seven.
Label declaration:
1 fan frame 2 impeller
3 blade 4 cover dishes
5 line bag 6 rotor core bodies
7 permanent magnet 8 stator core bodies
9 PCB 10 heat-dissipating frames
11 double-core single-chip microcomputer 12 bearing B installation steps
13 rotary shaft connecting hole 14 bearing A installation steps
15 strengthen rib 16 pre-driver chip
17 cylinder external screw thread 18 VMOS power tubes
19 hexahedron cover plate 20 cable holes
21 fan frame fixing hole 22 female threads
String holes 24 hangers irised out by 23 band sheaths
25 control cable 26 rotary shaft
27 line embedding groove 28 VMOS pipe fixing holes
29 bearing A 30 bearing B
31 arc raised line 32 arc grooves
33 breach
Detailed description of the invention
The present invention is as shown in Figures 1 to 10.
Specific embodiments of the present invention are described below in conjunction with the accompanying drawings:
DC permanent-magnetic brushless frequency conversion axial flow fan, including fan frame (1), impeller (2), cover dish (4), line bag (5), rotor core
Body (6), permanent magnet (7), stator core body (8), PCB (9), heat-dissipating frame (10), control cable (25), double-core list
Sheet machine (11), pre-driver chip (16), VMOS power tube (18), it is characterized by:
Described heat-dissipating frame (10) uses aluminum alloy material, and profile is cylinder, and cylinder has been engraved cylinder external screw thread
(17), heat-dissipating frame (10) center of inside position hollows out into hexagon, and heat-dissipating frame (10) has four hangers (24), each extension
The center of ear (24) is porose, screw may pass through the fan frame fixing hole (21) on fan frame (1) respectively with heat-dissipating frame
(10) upper hangers (24) with holes is connected as one；
Described PCB (9) is the circular printed board that central authorities are with holes, and the circumference of PCB (9) is respectively uniformly distributed
The breach (33) of four arcs, it is ensured that PCB (9) is embedded in heat-dissipating frame (10) after walking around the hangers (24) of arc,
PCB (9) is welded with double-core single-chip microcomputer (11), pre-driver chip (16), uses the VMOS power tube of TOP220 encapsulation
(18) pin is welded in PCB (9), and its radiating surface is then screwed in heat-dissipating frame by horizontal mounting means
(10) on the framework that central authorities are hexagonal, hexagonal every at most allow to install the VMOS merits of four TOP220 encapsulation
Rate pipe (18)；
Described cover dish (4) is the hollow cylinder that there is division board a centre, is equipped with a bearing B peace at division board centre bit
Dress step (12), cover dish (4) is separated into two parts by division board, wherein in one end inner wall belt female thread (22) of cover dish (4), separately
With prominent arc raised line (31) on the inwall of outer one end, wherein it is assembled with the heat-dissipating frame (10) after PCB (9) and passes through
Its cylinder external screw thread (17) is screwed in the female thread (22) of cover dish (4), makes heat-dissipating frame (10) and cover dish (4) be linked to be one
Body；
Described stator core body (8) is to be formed by stacking by multi-disc silicon steel punching, and stator core body (8) has opening (34) and arc
Connected in star (32), after line bag (5) is loaded the opening (34) of rotor core body (6), can be by recessed along arc for rotor core body (6)
The direction of groove (32) is inserted in the cover dish (4) being arranged on one end band arc raised line (31), and division board has wearing for line bag (5)
String holes (20), each coil outlet in line bag (5) is connected with PCB (9) by through wires hole (20)；
The middle position of described rotor core body (6) is provided with rotary shaft (26), and it is fixed that the edge of rotor core body (6) has
Position arc groove (32) and be embedded with the permanent magnet (7) of tile, rotary shaft assembles bearing A(29 on (26) respectively) and bearing B
(30), bearing A(29) be embedded into again in bearing A installation step (14) of fan frame (1), bearing B(30) it is embedded into cover dish (4)
In bearing B installation step (12) of demarcation strip；
With blade (3) on described impeller (2), the centre bit of impeller (2) is equipped with a step cutting pattern containing ribs, circular
There is a rotary shaft connecting hole (13) step center, and the threaded one end in rotary shaft (26) is connected with the rotary shaft of impeller (2)
Hole (13) is connected.
Described fan frame (1) uses aluminum alloy material, and outside is hexagonal, middle rounded, on fan frame (1)
There are a wire output protector hole (23) and four reinforcements rib (15), wherein strengthen having line embedding groove (27) on rib for one, described
Control cable (25) along line embedding groove (27) cabling, one end is drawn afterwards through wire output protector hole (26), controls cable
(25) the other end is directly welded in PCB (9).
Described control cable (11) is eight core cables, respectively: positive source (B+), power cathode (B-), tight
Anxious braking (BRK), fan starting/stopping (BRK), blower fan rotating (F/R), speed governing (SPEED), Vc (+5V), common port
(COM), wherein, fan starting/stopping (BRK) connects startup/shutdown switch, positive/negative turn of positive/negative turn of (F/R) external motor of blower fan
Switch, brake hard (BRK) connect emergency stop switch, described speed governing (SPEED) and Vc (+5V), common port (COM) jointly outside
Connect speed control crank.
It is integrated with high-speed multiply division arithmetic unit (iMDU) in described double-core single-chip microcomputer (8) chip simultaneously and is used for coordinating
Rotating vector digital computing unit (iCORDIC) kernel, the I/O pin of double-core single-chip microcomputer (8) and pre-driver chip (16) phase
Even, the control end of VMOS power tube (18) is connected with pre-driver chip (16) again.
Being to be noted that the present invention designs the most cleverly and include four parts, one is to use blower fan and controller electromechanical
The topological structure changed, changes the traditional pattern that blower fan separates with control；Two is PCB (9) and heat-dissipating frame (10)
Connected mode, the electronic devices and components in PCB (9) are all welded on heat-dissipating frame (10) middle position and hollow out into hexagonal
Position, and tri-groups of upper and lower bridge arms VMOS power tube (18) of U, V, W are connected with horizontal with heat-dissipating frame (10), substantially increase scattered
Heating rate；Three is that cover dish (4) is divided into two parts by demarcation strip, and a portion installs heat-dissipating frame (10), another part
Stator core body (8) is installed, effectively overcomes electromagnetic interference；Four is to use double-core single-chip microcomputer (8) so that it is control performance in real time
Significantly improve.
Hall position sensor for conventional permanent magnet brushless dc motor brings many adverse effects, side of the present invention
Case eliminates hall position sensor, after removing hall position sensor, it is achieved the motor rotor inspection of position-sensor-free
Observing and controlling system may select Based on Back-EMF Method, EKF method or flux linkage estimation method scheme, present invention employs maturation based on
Based on Back-EMF Method detection technique and from static start accelerate, until rotating speed is sufficiently large, then switch to brushless direct current motor fortune
The three steps start technology of row state, these technology belong to known technology, are not the scopes discussed of the present invention program.
In sum, DC permanent-magnetic brushless frequency conversion axial flow fan proposed by the invention, its useful meaning is:
DC permanent-magnetic brushless frequency conversion axial flow fan of the present invention, is integrated with brushless, permanently excited direct current motor, impeller and control
Device parts, it is achieved frequency control, drive, control Trinitarian function, are suitable for the axial flow blower of 100W to 2KW, have use
Simply, install and feature easy to maintenance, it is achieved that system saves most, total optimization.
On the topology, by fan frame, impeller, heat-dissipating frame and the topology design of cover dish, solving well
The integral structure of blower fan, motor and controller, compact conformation is reasonable, solves the assembling of VMOS power tube and heat radiation simultaneously
Problem.
Eliminate conventional position sensor Hall element, have employed based on back-EMF determination technology to determine the reality of rotor
Time position, motor from static start rotate, have employed from static start accelerate, until rotating speed is sufficiently large, then switch to nothing
The three steps start technology of brush dc motor running status.
Use efficient double-core single-chip microcomputer to replace DSP control chip, solve DC permanent-magnetic brushless frequency conversion axial flow fan with hard
Contradiction between part expense, greatly reduces manufacturing cost.
Obviously, DC permanent-magnetic brushless frequency conversion axial flow fan of the present invention, it is the most no longer that a kind of monotechnics is integrated, combines
Close technology content to have had and be obviously improved, belong to a kind of brand-new DC frequency-changing axial flow blower, can extensively apply various fixing or
In mobile device.
Especially interesting, proposed by the invention DC permanent-magnetic brushless frequency conversion axial flow fan scheme, it is provided that a kind of
The solution of the DC frequency-changing axial flow blower of low-cost energy-saving, the structure of its blower fan and motor integration, represent permanent magnetism without
The developing direction of brush DC frequency-changing axial flow blower, its application prospect is the most wide.
Claims (4)
1. DC permanent-magnetic brushless frequency conversion axial flow fan, including fan frame (1), impeller (2), cover dish (4), line bag (5), rotor ferrum
Heart body (6), permanent magnet (7), stator core body (8), PCB (9), heat-dissipating frame (10), control cable (25), double-core
Single-chip microcomputer (11), pre-driver chip (16), VMOS power tube (18), it is characterised in that:
Described heat-dissipating frame (10) uses aluminum alloy material, and profile is cylinder, and cylinder has been engraved cylinder external screw thread
(17), heat-dissipating frame (10) center of inside position hollows out into hexagon, and heat-dissipating frame (10) has four hangers (24), each extension
The center of ear (24) is porose, screw may pass through the fan frame fixing hole (21) on fan frame (1) respectively with heat-dissipating frame
(10) upper hangers (24) with holes is connected as one；
Described PCB (9) is the circular printed board that central authorities are with holes, and the circumference of PCB (9) is respectively uniformly distributed
The breach (33) of four arcs, it is ensured that PCB (9) is embedded in heat-dissipating frame (10) after walking around the hangers (24) of arc,
PCB (9) is welded with double-core single-chip microcomputer (11), pre-driver chip (16), uses the VMOS power tube of TOP220 encapsulation
(18) pin is welded in PCB (9), and its radiating surface is then screwed in heat-dissipating frame by horizontal mounting means
(10) on the framework that central authorities are hexagonal, hexagonal every at most allow to install the VMOS merits of four TOP220 encapsulation
Rate pipe (18)；
Described cover dish (4) is the hollow cylinder that there is division board a centre, is equipped with a bearing B peace at division board centre bit
Dress step (12), cover dish (4) is separated into two parts by division board, in one end inner wall belt female thread (22) of cover dish (4), other one
With prominent arc raised line (31) on end inwall, wherein it is assembled with the heat-dissipating frame (10) after PCB (9) by its circle
Cylinder external screw thread (17) is screwed in the female thread (22) of cover dish (4), makes heat-dissipating frame (10) be connected with cover dish (4)；
Described stator core body (8) is to be formed by stacking by multi-disc silicon steel punching, and stator core body (8) has opening (34) and arc
Connected in star (32), after line bag (5) is loaded the opening (34) of rotor core body (6), can be by recessed along arc for rotor core body (6)
The direction of groove (32) is inserted in the cover dish (4) being arranged on one end band arc raised line (31), and division board has wearing for line bag (5)
String holes (20), each coil outlet in line bag (5) is connected with PCB (9) by through wires hole (20)；
The middle position of described rotor core body (6) is provided with rotary shaft (26), and it is fixed that the edge of rotor core body (6) has
Position arc groove (32) and be embedded with the permanent magnet (7) of tile, rotary shaft assembles bearing A(29 on (26) respectively) and bearing B
(30), bearing A(29) be embedded into again in bearing A installation step (14) of fan frame (1), bearing B(30) it is embedded into cover dish (4)
In bearing B installation step (12) of demarcation strip；
With blade (3) on described impeller (2), the centre bit of impeller (2) is equipped with a step cutting pattern containing ribs, circular
There is a rotary shaft connecting hole (13) step center, and the threaded one end in rotary shaft (26) is connected with the rotary shaft of impeller (2)
Hole (13) is connected.
DC permanent-magnetic brushless frequency conversion axial flow fan the most according to claim 1, it is characterised in that: described fan frame
(1) using aluminum alloy material, outside is hexagonal, middle rounded, fan frame (1) has a wire output protector hole (23) and
Article four, strengthening rib (15), wherein strengthen having line embedding groove (27) on rib for one, described control cable (25) is along embedding
Wire casing (27) cabling, one end passes wire output protector hole (26) and draws afterwards, and the other end controlling cable (25) is directly welded at PCB
On circuit board (9).
DC permanent-magnetic brushless frequency conversion axial flow fan the most according to claim 1 and 2, it is characterised in that: described control electricity
Cable (11) is eight core cables, respectively: positive source (B+), power cathode (B-), brake hard (BRK), fan starting/
Stop (BRK), blower fan rotating (F/R), speed governing (SPEED), Vc (+5V), common port (COM), wherein, fan starting/stopping
(BRK) connecing startup/shutdown switch, positive/negative turn of positive/negative pass that turns on of (F/R) external motor of blower fan, brake hard (BRK) connects promptly
Brake switch, described speed governing (SPEED) and Vc (+5V), the common external speed control crank of common port (COM).
DC permanent-magnetic brushless frequency conversion axial flow fan the most according to claim 1, it is characterised in that: described double-core single-chip microcomputer
(8) it is integrated with high-speed multiply division arithmetic unit (iMDU) in chip simultaneously and is used for coordinating rotating vector digital computing unit
(iCORDIC) kernel, the I/O pin of double-core single-chip microcomputer (8) is connected with pre-driver chip (16), the control of VMOS power tube (18)
End processed is connected with pre-driver chip (16) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823663.2A CN106224268B (en) | 2016-09-15 | 2016-09-15 | DC permanent-magnetic brushless frequency conversion axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610823663.2A CN106224268B (en) | 2016-09-15 | 2016-09-15 | DC permanent-magnetic brushless frequency conversion axial flow fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106224268A true CN106224268A (en) | 2016-12-14 |
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| CN107100866A (en) * | 2017-03-17 | 2017-08-29 | 渤海船舶职业学院 | A kind of blower fan of electromagnetic drive flabellum |
| CN107482867A (en) * | 2017-08-21 | 2017-12-15 | 彭希南 | A kind of three-phase permanent brushless DC hub motor |
| CN108708868A (en) * | 2018-06-04 | 2018-10-26 | 彭希南 | A kind of frequency conversion axial flow fan |
| CN108730218A (en) * | 2018-06-04 | 2018-11-02 | 彭希南 | A kind of Full-automatic Variable Frequency Speed Regulation ventilation fan |
| CN108852247A (en) * | 2018-06-04 | 2018-11-23 | 彭希南 | A kind of electric shoes polisher |
| CN109139520A (en) * | 2017-06-16 | 2019-01-04 | 蒋亮健 | Oscillation angle adjuster for electric fan |
| CN110594885A (en) * | 2018-05-24 | 2019-12-20 | 湖南匡为科技有限公司 | Air purifying and deodorizing device |
| US20230235742A1 (en) * | 2022-01-21 | 2023-07-27 | Hoteck Inc. | Portable electric fan |
| US11884128B2 (en) | 2017-12-18 | 2024-01-30 | Carrier Corporation | Fan stator construction to minimize axial depth |
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| US20080169732A1 (en) * | 2007-01-11 | 2008-07-17 | Chung-Min Chang | Integrated stator and rotor for a dc brushless ceiling fan motor |
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| CN107100866A (en) * | 2017-03-17 | 2017-08-29 | 渤海船舶职业学院 | A kind of blower fan of electromagnetic drive flabellum |
| CN109139520A (en) * | 2017-06-16 | 2019-01-04 | 蒋亮健 | Oscillation angle adjuster for electric fan |
| CN107482867A (en) * | 2017-08-21 | 2017-12-15 | 彭希南 | A kind of three-phase permanent brushless DC hub motor |
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| CN110594885B (en) * | 2018-05-24 | 2021-06-04 | 湖南匡为科技有限公司 | Air purifying and deodorizing device |
| CN108708868A (en) * | 2018-06-04 | 2018-10-26 | 彭希南 | A kind of frequency conversion axial flow fan |
| CN108730218A (en) * | 2018-06-04 | 2018-11-02 | 彭希南 | A kind of Full-automatic Variable Frequency Speed Regulation ventilation fan |
| CN108852247A (en) * | 2018-06-04 | 2018-11-23 | 彭希南 | A kind of electric shoes polisher |
| CN108852247B (en) * | 2018-06-04 | 2019-11-12 | 彭希南 | A kind of electric shoes polisher |
| US20230235742A1 (en) * | 2022-01-21 | 2023-07-27 | Hoteck Inc. | Portable electric fan |
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