CN107917095A - A kind of brush-less fan of strap brake function - Google Patents
A kind of brush-less fan of strap brake function Download PDFInfo
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- CN107917095A CN107917095A CN201711045136.4A CN201711045136A CN107917095A CN 107917095 A CN107917095 A CN 107917095A CN 201711045136 A CN201711045136 A CN 201711045136A CN 107917095 A CN107917095 A CN 107917095A
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- 239000004065 semiconductor Substances 0.000 claims description 71
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- 238000004519 manufacturing process Methods 0.000 abstract description 6
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- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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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
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/90—Braking
- F05D2260/903—Braking using electrical or magnetic forces
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The present invention discloses a kind of brush-less fan of strap brake function, including stator, rotor, fan and coil windings, coil windings are set around on stator, and rotor is installed on fan and it is surrounded on stator, it further includes brake control module, and brake control module is electrically connected with coil windings.The brush-less fan of the strap brake function of the present invention is equipped with the brake control module being electrically connected with coil windings, utilize the current direction of brake control module control coil winding, moment between stator and rotor is set to obtain deboost, so that rotor drives fan to shut down in a short time, realize the electric brake of fan, the installation of mechanical brake mechanism need not be carried out, production difficulty is reduced and extends the physical life of product.
Description
Technical field
The present invention relates to fan technology field, and in particular, to a kind of brush-less fan of strap brake function.
Background technology
Brush-less fan is used more widely because noise is small, starts the advantages that rapid, efficient, is especially often applied to electricity
Brain, sweeping robot and household electrical appliance.And after brush-less fan is powered off when running at high speed, fan can continue because of effect of inertia
Operating a period of time could stop completely.People to brush-less fan when doing cleaning, because also existing after brush-less fan power-off
Operating, people do not pay attention to slightly when operating will be by fan vane scratching fingers.In order to improve the security of brush-less fan, generally
The operating that braking mechanism is used to after powering off stop fan being installed additional in brush-less fan.And traditional braking mechanism is mostly mechanical dry
Formula is disturbed, this mode brakes fan by mechanical mechanism, but the mechanical structure to product, mounting means and operation
All tool there are certain requirements, and increase production difficulty, and in addition mechanical disturbance brake in practical applications easily damages product, contracts
Short product life.
So we there is an urgent need for a kind of production difficulty is low, the brush-less fan of the long strap brake function of life of product.
The content of the invention
In view of the deficiencies of the prior art, it is low, the strap brake function of life of product length to provide a kind of production difficulty by the present invention
Brush-less fan.
A kind of brush-less fan of strap brake function disclosed by the invention, including：Stator, rotor, fan and coil windings,
Coil windings are set around on stator, and rotor is installed on fan and it is surrounded on stator, it is further included：Brake control module；
Brake control module is electrically connected with coil windings.
According to an embodiment of the present invention, brake control module includes：Main control chip, magnetic conduction circuitry and brake control
Circuit processed；Brake control circuit connects main control chip and coil windings respectively；Magnetic conduction circuitry connects main control chip.
According to an embodiment of the present invention, magnetic conduction circuitry includes：Hall chip, first resistor, the first capacitance and
Second capacitance；One end of first capacitance, first resistor and the second capacitance connects the 13rd pin of main control chip at the same time；First capacitance
The other end connection main control chip the 12nd pin；1st pin of the other end connection Hall chip of first resistor；Second capacitance
The other end and the 4th pin of Hall chip be grounded jointly.
According to an embodiment of the present invention, brake control circuit includes：First diode, the second diode, the 3rd capacitance,
4th capacitance, the 5th capacitance, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th
Resistance, the 9th resistance, the tenth resistance, the 11st resistance, the 12nd resistance, the 13rd resistance, the 14th resistance, the 15th electricity
Resistance, the 16th resistance, the 17th resistance, the 18th resistance, the 19th resistance, the 20th resistance, the 21st resistance, first
Metal-oxide-semiconductor, the second metal-oxide-semiconductor, the first triode, the second triode, the 3rd triode, the 4th triode, the 5th triode, the 6th
Triode, the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor；The cathode of first diode connects second resistance, 3rd resistor, the 4th at the same time
Resistance, one end of the 5th resistance and the first metal-oxide-semiconductor, the drain electrode of the 2nd MOS pipes；The other end of second resistance connects the 3rd at the same time
The collector of the other end of resistance, the grid of the first metal-oxide-semiconductor and the first triode；The emitter connection the 6th of first triode
One end of resistance；1st pin of the other end connection main control chip of the 6th resistance；The grid of second metal-oxide-semiconductor connects the 4th at the same time
The collector of resistance, one end of the 5th resistance and the second triode；The emitter of second triode connects one end of the 7th resistance；
16th pin of the other end connection main control chip of the 7th resistance；The cathode while the 4th capacitance of connection of second diode,
One end of 8th resistance and the 13rd resistance；First diode is connected power supply at the same time with the anode of the second diode；One or two pole
One end of pipe threeth capacitance in parallel between second resistance；The other end ground connection of 3rd capacitance；The other end of 8th resistance is at the same time
Connect the collector of the 3rd triode and one end of the 9th resistance；The other end of 9th resistance connects the grid of the 3rd metal-oxide-semiconductor；
The base stage of 3rd triode connects one end of the 11st resistance and the collector of the 4th triode by the tenth resistance at the same time；4th
The base stage of triode connects one end of the 12nd resistance；2nd pin of the other end connection main control chip of the 12nd resistance；The
The emitter of three triodes and the 4th triode is grounded at the same time；5th capacitance, the 19th resistance, the 20th resistance, the 21st
One end of resistance and the source electrode of the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor connect the 4th pin of main control chip at the same time；5th capacitance,
The other end of 19 resistance, the 20th resistance and the 21st resistance is grounded at the same time；The other end of 13rd resistance connects at the same time
Connect one end of the 14th resistance and the collector of the 5th triode；The other end of 14th resistance connects the base stage of the 4th metal-oxide-semiconductor；
The base stage of 5th triode connects one end of the 16th resistance and the collector of the 6th triode by the 15th resistance；Six or three
The base stage of pole pipe connects one end of the 17th resistance；15th pin of the other end connection main control chip of the 17th resistance；5th
The emitter of triode and the 6th triode is grounded at the same time；First metal-oxide-semiconductor source electrode is connected coil at the same time with the drain electrode of the 3rd metal-oxide-semiconductor
One end of winding；The source electrode of second metal-oxide-semiconductor is connected the other end of coil windings with the drain electrode of the 4th metal-oxide-semiconductor at the same time；4th capacitance
For storage capacitor.
The beneficial effect that the present invention is different from the prior art is：The brush-less fan of the strap brake function of the present invention is equipped with and line
Enclose the brake control module that winding is electrically connected, using the current direction of brake control module control coil winding, make stator with
Moment obtains deboost between rotor so that rotor drives fan to shut down in a short time, realizes that the electronics of fan is stopped
Car, without carrying out the installation of mechanical brake mechanism, reduces production difficulty and extends the physical life of product.
Brief description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, forms the part of the application, this Shen
Schematic description and description please is used to explain the application, does not form the improper restriction to the application.In the accompanying drawings：
Fig. 1 is the sectional view of the brush-less fan of strap brake function in embodiment；
Fig. 2 is the circuit diagram of brake control module in embodiment.
Description of reference numerals：1st, stator；2nd, rotor；3rd, fan；L1, coil windings；4th, brake control module；U1, master control
Chip；41st, magnetic conduction circuitry；42nd, brake control circuit；U2, Hall chip；R1, first resistor；C1, the first capacitance；C2,
Two capacitances；D1, the first diode；D2, the second diode；C3, the 3rd capacitance；C4, the 4th capacitance；C5, the 5th capacitance；R2,
Two resistance；R3,3rd resistor；R4, the 4th resistance；R5, the 5th resistance；R6, the 6th resistance；R7, the 7th resistance；R8, the 8th electricity
Resistance；R9, the 9th resistance；R10, the tenth resistance；R11, the 11st resistance；R12, the 12nd resistance；R13, the 13rd resistance；R14、
14th resistance；R15, the 15th resistance；R16, the 16th resistance；R17, the 17th resistance；R18, the 18th resistance；R19,
19 resistance；R20, the 20th resistance；R21, the 21st resistance；Q1, the first metal-oxide-semiconductor；Q2, the second metal-oxide-semiconductor；Q3, the one or three
Pole pipe；Q4, the second triode；Q5, the 3rd triode；Q6, the 4th triode；Q7, the 5th triode；Q8, the 6th triode；
Q9, the 3rd metal-oxide-semiconductor；Q10, the 4th metal-oxide-semiconductor.
Embodiment
Multiple embodiments of the present invention, as clearly stated, the details in many practices will be disclosed with schema below
It will be explained in the following description.It should be appreciated, however, that the details in these practices is not applied to limit the present invention.Also
It is to say, in some embodiments of the present invention, the details in these practices is non-essential.In addition, for the sake of simplifying schema,
Some known usual structures will illustrate it in a manner of simply illustrative in the drawings with component.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present invention
In explaining the relative position relation under a certain particular pose (as shown in drawings) between each component, motion conditions etc., if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, in the present invention such as relating to the description of " first ", " second " etc. be only used for description purpose, not especially censure
The meaning of order or cis-position, is also not used to limit the present invention, its component described with constructed term just for the sake of difference
Or operation, and it is not intended that indicating or implying its relative importance or the implicit number for indicating indicated technical characteristic
Amount.Thus, " first " is defined, at least one this feature can be expressed or be implicitly included to the feature of " second ".It is in addition, each
Technical solution between a embodiment can be combined with each other, but must can be implemented as base with those of ordinary skill in the art
Plinth, will be understood that the combination of this technical solution is not present when the combination appearance of technical solution is conflicting or can not realize,
Also not within the protection domain of application claims.
Embodiment：
Shown in please referring to Fig.1, it is the sectional view of the brush-less fan of strap brake function in embodiment, and the present embodiment provides one
The brush-less fan of kind strap brake function, including stator 1, rotor 2, fan 3 and coil windings L1.Wherein, coil windings L1 around
On stator 1, rotor 2 is installed on fan 3 and it is surrounded on stator 1, and brake control module 4 and coil windings L1 are electrical
Connection.When being powered, 4 driving coil winding L1 of the brake control module is powered so that rotor 2 is rotated around stator 1, so that band
Dynamic fan 3 rotates；When power is off, brake control module 4 changes the current direction of coil windings L1 so that stator 1 and rotor 2
Between moment obtain deboost so that rotor 2 drive fan 3 shut down.
Further, shown in please referring to Fig.2, it is the circuit diagram of brake control module in embodiment, and brake controls
Module 4 includes main control chip U1, magnetic conduction circuitry 41 and brake control circuit 42.Wherein, brake control circuit 42 connects respectively
Main control chip U1 and coil windings L1 is met, magnetic conduction circuitry 52 connects main control chip U1.It is otherwise noted that brake
Control circuit 42 is rotated so as to driving fan 3 for the energization of control coil winding L1, at the same its also can be used for control coil around
Group L1 obtains a reverse current after a loss of power, so that moment obtains deboost, stopping wind between stator 1 and rotor 2
The operating of fan 3；Magnetic conduction circuitry 52 is used to sense the magnetic direction produced on coil windings L1 when fan 3 operates, and magnetic strength
Circuit 52 is answered by the level signal according to magnetic direction one continuation of output to main control chip U1.In the present embodiment, it is above-mentioned
Main control chip U1 uses the control chip of model AM4967, but is not restricted to such a model.AM4967 control chips have 16
A pin, wherein, the 1st pin is for second channel the first output terminal OUT2 ends, and the 2nd pin is defeated for the second channel second
Outlet OUT2B ends, the 3rd pin are VCC ends for power input, and the 4th pin is the CS ends for current limliting instruction, the 9th pin
For the HIN- ends for connecting Hall sensor anode, the 10th pin is the HIN+ ends for connecting Hall sensor cathode, the
11 pins are the CT ends for setpoint frequency, and the 12nd pin is the LS ends for linearly starting, and the 13rd pin is for exporting 5V
The VREF ends of reference voltage, the 14th pin are the GND ends for ground connection, and the 15th pin is for the output of the first channel second
OUT1B ends, and the 16th pin are the OUT1 ends for the output of the first channel first.Upon power-up, main control chip U1 passes through
42 control coil winding L1 of brake control circuit is powered, and the magnetic produced after 41 induction coil winding L1 of magnetic conduction circuitry energizations
Direction and export the level signal of a continuation to main control chip U1, control program makes main control chip U1 be believed according to the level
Number change the current direction of coil windings L1 by brake control circuit 42.In one embodiment, when defining the rotating forward of fan 3,
The magnetic direction that 41 induction coil winding L1 of magnetic conduction circuitry is produced after being powered exports a high level signal to main control chip U1, root
After receiving a continuation high level of the input of magnetic conduction circuitry 41 according to control program main control chip U1, pass through the control electricity that brakes
Road 42 changes the current direction of coil windings L1 so that rotor 2 obtains an opposing magnetic field thrust and inverts, and drives fan 3 anti-
Turn.After power is turned off, brake control circuit 42 is by its inner working, the current direction of change coil windings L1 in the short time,
So that rotor 2 obtains an of short duration opposing magnetic field thrust and stops rotating so that fan 3 stops.
Further, please continue to refer to shown in Fig. 2, magnetic conduction circuitry 52 includes Hall chip U2, first resistor R1, first
Capacitance C1 and the second capacitance C2.Wherein, one end of the first capacitance C1 while one end with first resistor R1 and the second capacitance C2
Connection, and the VREF ends of main control chip U1 are accessed, the LS ends of the other end connection main control chip U1 of the first capacitance C1, the first electricity
The 1st pin of the other end connection Hall chip U2 of R1 is hindered, the other end of the second capacitance C2 is total to the 4th pin of Hall chip U2
With ground connection, in addition the 2nd pins of Hall chip U2 connect the HIN+ ends into main control chip U1, its 3rd pin connection main control chip U1
HIN- ends.After powered up, coil windings L1, which is powered, produces magnetic field, the magnetic field of Hall chip U2 detection coil windings L1, then
Hall chip U2 will pass through the level signal of one continuation of HIN+ ends output to main control chip U1.In one embodiment, can lead to
Control application definition is crossed, when fan 4 rotates forward, high level letter is exported behind the magnetic field that Hall chip U2 induction coil windings L1 is produced
Number to main control chip U1, when fan 4 inverts, then on the contrary, then by controlling program to make main control chip U1 according to Hall chip U2
The level signal of output judge the rotation direction of fan 3 and changes the electric current on coil windings L1 according to the level signal
Trend.In the present embodiment, Hall chip U2 can use the Hall chip of model HW-101A, but be not restricted to this model, its
With 4 pins, wherein the 1st pin and the 3rd pin are input pin, the 2nd pin and the 4th pin are output pin.In addition,
In the present embodiment, first resistor R1 uses 1uF using 1.2K Ω, the first capacitance C1 and the second capacitance C2.
Further, please continue to refer to shown in Fig. 2, brake control circuit 42 includes the first diode D1, the two or two pole
Pipe D2, the 3rd capacitance C3, the 4th capacitance C4, the 5th capacitance C5, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th
Resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the tenth resistance R10, the 11st resistance R11,
12nd resistance R12, the 13rd resistance R13, the 14th resistance R14, the 15th resistance R15, the 16th resistance R16, the 17th
Resistance R17, the 18th resistance R18, the 19th resistance R19, the 20th resistance R20, the 21st resistance R21, the first metal-oxide-semiconductor
Q1, the second metal-oxide-semiconductor Q2, the first triode Q3, the second triode Q4, the 3rd triode Q5, the 4th triode Q6, the 5th triode
Q7, the 6th triode Q8, the 3rd metal-oxide-semiconductor Q9 and the 4th metal-oxide-semiconductor Q10.Wherein, the cathode of the first diode D1 connects the at the same time
The leakage of two resistance R2,3rd resistor R3, the 4th resistance R4, one end of the 5th resistance R5 and the first MOS pipes Q1, the second metal-oxide-semiconductor Q2
Pole, the other end of second resistance R2 connect the other end of 3rd resistor R3, the grid and the one or three of the first metal-oxide-semiconductor Q1 at the same time
The collector of pole pipe Q3, the emitter of the first triode Q3 connect one end of the 6th resistance R6, and the other end of the 6th resistance R6 connects
Connect the 1st pin of main control chip U1, the grid of the second metal-oxide-semiconductor Q2 connect at the same time the 4th resistance R4, the 5th resistance R5 one end and
The collector of second triode Q4, the emitter of the second triode Q4 connect one end of the 7th resistance R7, and the 7th resistance R7's is another
The 16th pin of one end connection main control chip U1, the cathode of the second diode D2 connect the 4th capacitance C4, the 8th resistance R8 at the same time
With one end of the 13rd resistance R13, the first diode D1 is connected power supply at the same time with the anode of the second diode D2, first
In parallel one the 3rd capacitance C3 for filtering between diode D1 and second resistance R2, the other end of the 8th resistance R8 connect at the same time
The collector of 3rd triode Q5 and one end of the 9th resistance R9, the other end of the 9th resistance R9 connect the 3rd metal-oxide-semiconductor Q9's
Grid；The base stage of 3rd triode Q5 connects one end and the 4th triode of the 11st resistance R11 by the tenth resistance R10 at the same time
The collector of Q6, the base stage of the 4th triode Q6 connect one end of the 12nd resistance R12, and the other end of the 12nd resistance R12 connects
Connecing the 2nd pin of main control chip U1, the emitter of the 3rd triode Q5 and the 4th triode Q6 are grounded at the same time, the 5th capacitance C5,
19th resistance R19, the 20th resistance R20, one end of the 21st resistance R21 and the 3rd metal-oxide-semiconductor Q9 and the 4th metal-oxide-semiconductor
The source electrode of Q10 connects the 4th pin of main control chip U1, the 5th capacitance C5, the 19th resistance R19, the 20th resistance R20 at the same time
And the 21st the other end of resistance R21 be grounded at the same time, the other end of the 13rd resistance R13 connects the 14th resistance at the same time
One end of R14 and the collector of the 5th triode Q7, the other end of the 14th resistance R14 connect the base stage of the 4th metal-oxide-semiconductor Q10；
The base stage of 5th triode Q7 passes through one end of the 16th resistance R16 of the 15th resistance R15 connections and the collection of the 6th triode Q8
Electrode, the base stage of the 6th triode Q8 connect one end of the 17th resistance R17；The other end connection master control of 17th resistance R17
The emitter of the 15th pin of chip U1, the 5th triode Q7 and the 6th triode Q8 are grounded at the same time, the first metal-oxide-semiconductor Q1 source electrodes with
The drain electrode of 3rd metal-oxide-semiconductor Q9 connects one end of coil windings L1, the leakage of the source electrode and the 4th metal-oxide-semiconductor Q10 of the second metal-oxide-semiconductor Q2 at the same time
Pole connects 2 other end of coil windings at the same time.Wherein, the 4th capacitance C4 is storage capacitor.Also, the first metal-oxide-semiconductor Q1 and second
Metal-oxide-semiconductor Q2 manages for P-channel MOS, and the 3rd metal-oxide-semiconductor Q9 and the 4th metal-oxide-semiconductor Q10 are N-channel MOS pipe.In the present embodiment, it is above-mentioned
The first diode D1 and the second diode D2 can use the diode of model SS34, the 3rd capacitance C3 use 22uF and 50V
Specification, the 4th capacitance C4 use 47uF and 25V specifications storage capacitor, second resistance R2,3rd resistor R3, the 4th resistance R4 and
5th resistance R5 uses 2.2K Ω, the 6th resistance R6 and the 7th resistance R7 to use 3.6K Ω, the 8th resistance R8 and the 13rd resistance
R13 uses 100K Ω, the tenth resistance R10, the 12nd resistance R12, using 20K Ω, the 9th resistance R9 and the 14th resistance R14
15 resistance R15 and the 17th resistance R17 use 1K Ω, the 11st resistance R11 and the 16th resistance R16 to use 2K Ω, and the tenth
Nine resistance R19, the 20th resistance R20 and the 21st resistance R21 use 200 Ω.Pass through the connection in above-mentioned direction so that brake
Control circuit 42 be powered when, can by the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2, the first triode Q3, the second triode Q4,
3rd triode Q5, the 4th triode Q6, the 5th triode Q7, the 6th triode Q8, the 3rd metal-oxide-semiconductor Q9 and the 4th metal-oxide-semiconductor
Q10 coordinates the level of the pin output of the 1st, the 2nd, the 15th and the 16th of main control chip U1, realizes the electricity of control coil winding L1
Flow away to also, when power is off, providing power supply by the 4th capacitance C4, brake control circuit 42 is changed on coil windings L1
Current direction, make its produce opposing magnetic field, finally make 3 emergency stop of fan.
The operation principle of this work invention is as follows：
In the case of normal power-up, main control chip U1 is used to control by the output of its 1st, the 2nd, the 15th and the 16th pin
The level signal of coil windings L1 current trends, wherein according to control application definition main control chip U1 original state when level
Signal output.In one embodiment, main control chip U1 exports low level by its 1st, the 2nd pin so that the first metal-oxide-semiconductor Q1
Conducting, the 3rd metal-oxide-semiconductor Q9 cut-offs, the 15th pin output high level, the 16th pin not output level so that the second metal-oxide-semiconductor Q2
Cut-off, the 4th metal-oxide-semiconductor Q10 conductings, finally realizes that the electric current on coil windings L1 flows to the 4th metal-oxide-semiconductor by the first MOS pipes Q1
Q10；When main control chip U1 exports low level by its 15th, the 16th pin, output level, the output of the 2nd pin is not high for the 1st pin
During level, the first metal-oxide-semiconductor Q1 cut-offs, the second metal-oxide-semiconductor Q2 conductings, the 3rd metal-oxide-semiconductor Q9 conductings, the 4th metal-oxide-semiconductor Q10 cut-offs, finally
Realize that the electric current on coil windings L1 flows to the 3rd metal-oxide-semiconductor Q9 by the second metal-oxide-semiconductor Q2.Main control chip U1 is defeated by Hall chip U2
The continuation level signal entered, judges the steering of fan 3, main control chip U1 and passes through the level signal of the continuation, changes
The output level of its 1st, the 2nd, the 15th and the 16th pin, in one embodiment, when the high level of Hall chip U2 inputs
Signal represents the rotating forward of fan 3, and by controlling application definition, main control chip U1 receives the high level letter of Hall chip U2 inputs
After number, change the output level of its 1st, the 2nd, the 15th and the 16th pin by principle noted earlier, change coil windings L1
On current direction.
After power is turned off, because the 4th capacitance C4 is storage capacitor, the 4th capacitance C4 back discharges, the 3rd triode at this time
Q5, the 4th triode Q6, the 5th triode Q7 and the 6th triode Q8 end, at this time the 9th resistance R9 and the 14th resistance
Make it that the 3rd metal-oxide-semiconductor Q9 and the 4th metal-oxide-semiconductor Q10 are in the conduction state there are voltage on R14, then, the 4th capacitance C4 is reversely put
The electric current that electricity produces flows through the 19th resistance R19, the 20th resistance R20 and the 21st last inflow lines of resistance R21 by ground
The magnetic field and formation and new magnetic field opposite before that the electric current of remaining produces on circle winding L1, bucking coil winding L1 so that
2 moment of rotor obtains opposite thrust, makes 3 emergency stop of fan.
In conclusion the brush-less fan of the strap brake function of the present invention is equipped with the brake control being electrically connected with coil windings L1
Molding block 4, using the current direction of 4 control coil winding L1 of brake control module, obtains moment between stator 1 and rotor 2
Deboost so that rotor 2 drives fan 3 to shut down in a short time, realizes the electric brake of fan, without carrying out machinery
The installation of braking mechanism, reduces production difficulty and extends the physical life of product.
Upper is only embodiments of the present invention, is not intended to limit the invention.To those skilled in the art,
The invention may be variously modified and varied.All any modifications made in spirit and principles of the present invention, equivalent substitution,
Improve etc., it should all be included within scope of the presently claimed invention.
Claims (4)
1. a kind of brush-less fan of strap brake function, including：Stator (1), rotor (2), fan (3) and coil windings (L1),
The coil windings (L1) are set around on the stator (1), and the rotor (2) is installed on the fan (3) and it surround
In the stator (1), it is characterised in that it is further included：Brake control module (4)；The brake control module (4) and coil around
Group (L1) is electrically connected.
2. the brush-less fan of strap brake function according to claim 1, it is characterised in that the brake control module (4) includes：
Main control chip (U1), magnetic conduction circuitry (41) and brake control circuit (42)；The brake control circuit (53) connects respectively
The main control chip (U1) and coil windings (L1)；The magnetic conduction circuitry (52) connects the main control chip (U1).
3. the brush-less fan of strap brake function according to claim 2, it is characterised in that the magnetic conduction circuitry (52) includes：
Hall chip (U2), first resistor (R1), the first capacitance (C1) and the second capacitance (C2)；First capacitance (C1), first
One end of resistance (R1) and the second capacitance (C2) connects the 13rd pin of the main control chip (U1) at the same time；First capacitance
(C1) the other end connects the 12nd pin of the main control chip (U1)；Described in the other end connection of the first resistor (R1) suddenly
1st pin of your chip (U2)；4th pin of the other end and the Hall chip (U2) of second capacitance (C2) connects jointly
Ground.
4. the brush-less fan of strap brake function according to claim 2, it is characterised in that the brake control circuit (42) includes：
First diode (D1), the second diode (D2), the 3rd capacitance (C3), the 4th capacitance (C4), the 5th capacitance (C5), second resistance
(R2), 3rd resistor (R3), the 4th resistance (R4), the 5th resistance (R5), the 6th resistance (R6), the 7th resistance (R7), the 8th electricity
Hinder (R8), the 9th resistance (R9), the tenth resistance (R10), the 11st resistance (R11), the 12nd resistance (R12), the 13rd resistance
(R13), the 14th resistance (R14), the 15th resistance (R15), the 16th resistance (R16), the 17th resistance (R17), the 18th
Resistance (R18), the 19th resistance (R19), the 20th resistance (R20), the 21st resistance (R21), the first metal-oxide-semiconductor (Q1),
Two metal-oxide-semiconductors (Q2), the first triode (Q3), the second triode (Q4), the 3rd triode (Q5), the 4th triode (Q6), the 5th
Triode (Q7), the 6th triode (Q8), the 3rd metal-oxide-semiconductor (Q9) and the 4th metal-oxide-semiconductor (Q10)；First diode (D1)
Cathode connect second resistance (R2), 3rd resistor (R3), the 4th resistance (R4), one end and first of the 5th resistance (R5) at the same time
The drain electrode of metal-oxide-semiconductor (Q1), the second metal-oxide-semiconductor (Q2)；The other end of the second resistance (R2) connects the 3rd resistor at the same time
(R3) collector of the other end, the grid of first metal-oxide-semiconductor (Q1) and first triode (Q3)；Described 1st
The emitter of pole pipe (Q3) connects one end of the 6th resistance (R6)；The other end connection master control core of 6th resistance (R6)
1st pin of piece (U1)；The grid of second metal-oxide-semiconductor (Q2) connects the 4th resistance (R4), the 5th resistance (R5) at the same time
One end and second triode (Q4) collector；The emitter of second triode (Q4) connects the 7th resistance
(R7) one end；The other end of 7th resistance (R7) connects the 16th pin of the main control chip (U1)；Described 2nd 2
The cathode of pole pipe (D2) connects the one of the 4th capacitance (C4), the 8th resistance (R8) and the 13rd resistance (R13) at the same time
End；First diode (D1) is connected power supply at the same time with the anode of the second diode D2；First diode (D1)
One end of the 3rd capacitance (C3) in parallel between the second resistance (R2)；Another termination of 3rd capacitance (C3)
Ground；The other end of 8th resistance (R8) connects the collector and the 9th resistance (R9) of the 3rd triode (Q5) at the same time
One end；The other end of 9th resistance (R9) connects the grid of the 3rd metal-oxide-semiconductor (Q9)；The base of 3rd triode (Q5)
The collector of one end and the 4th triode (Q6) that pole passes through the tenth resistance (R10) while the 11st resistance (R11) of connection；
The base stage of 4th triode (Q6) connects one end of the 12nd resistance (R12)；The other end of 12nd resistance (R12)
Connect the 2nd pin of the main control chip (U1)；The emitter of 3rd triode (Q5) and the 4th triode (Q6) is at the same time
Ground connection；5th capacitance (C5), the 19th resistance (R19), the 20th resistance (R20), one end of the 21st resistance (R21)
And the source electrode of the 3rd metal-oxide-semiconductor (Q9) and the 4th metal-oxide-semiconductor (Q10) connects the 4th pin of the main control chip (U1) at the same time；
5th capacitance (C5), the 19th resistance (R19), the other end of the 20th resistance (R20) and the 21st resistance (R21)
It is grounded at the same time；The other end of 13rd resistance (R13) connects one end and the five or three of the 14th resistance (R14) at the same time
The collector of pole pipe (Q7)；The other end of 14th resistance (R14) connects the base stage of the 4th metal-oxide-semiconductor (Q10)；It is described
The base stage of 5th triode (Q7) connects one end and the of the 16th resistance (R16) by the 15th resistance (R15)
The collector of six triodes (Q8)；The base stage of 6th triode (Q8) connects one end of the 17th resistance (R17)；Described
The other end of 17 resistance (R17) connects the 15th pin of the main control chip (U1)；5th triode (Q7) and the 6th
The emitter of triode (Q8) is grounded at the same time；The drain electrode of first metal-oxide-semiconductor (Q1) source electrode and the 3rd metal-oxide-semiconductor (Q9) is at the same time
Connect one end of the coil windings (L1)；The source electrode of second metal-oxide-semiconductor (Q2) and the drain electrode of the 4th metal-oxide-semiconductor (Q10)
The other end of the coil windings (L1) is connected at the same time；4th capacitance (C4) is storage capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045136.4A CN107917095B (en) | 2017-10-31 | Brushless fan with braking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045136.4A CN107917095B (en) | 2017-10-31 | Brushless fan with braking function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107917095A true CN107917095A (en) | 2018-04-17 |
| CN107917095B CN107917095B (en) | 2024-07-05 |
Family
ID=
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111134577A (en) * | 2020-01-03 | 2020-05-12 | 北京石头世纪科技股份有限公司 | Fan control method and system |
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| JPH05260786A (en) * | 1992-03-10 | 1993-10-08 | Hitachi Ltd | Motor braking circuit |
| JP2003047255A (en) * | 2001-07-26 | 2003-02-14 | Sankyo Seiki Mfg Co Ltd | Driving circuit for brushless motor |
| CN1592080A (en) * | 2003-09-04 | 2005-03-09 | 奇鋐科技股份有限公司 | System for stopping fan rotation |
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| CN201407192Y (en) * | 2009-01-13 | 2010-02-17 | 美的集团有限公司 | Portable household direct-current brushless fan |
| CN202818190U (en) * | 2012-06-05 | 2013-03-20 | 江门凯信科技实业有限公司 | High-reliability micro motor rapid brake system |
| CN105656370A (en) * | 2016-03-09 | 2016-06-08 | 广东美的制冷设备有限公司 | Air conditioner and shutdown control method and device for compressor of air conditioner |
| CN208185037U (en) * | 2017-10-31 | 2018-12-04 | 广东金力变速科技股份有限公司 | A kind of brush-less fan of strap brake function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05260786A (en) * | 1992-03-10 | 1993-10-08 | Hitachi Ltd | Motor braking circuit |
| JP2003047255A (en) * | 2001-07-26 | 2003-02-14 | Sankyo Seiki Mfg Co Ltd | Driving circuit for brushless motor |
| CN1592080A (en) * | 2003-09-04 | 2005-03-09 | 奇鋐科技股份有限公司 | System for stopping fan rotation |
| JP2009095212A (en) * | 2007-10-12 | 2009-04-30 | Panasonic Corp | Drive unit for blushless dc motor, and ventilating airblower equipped with the same |
| CN201407192Y (en) * | 2009-01-13 | 2010-02-17 | 美的集团有限公司 | Portable household direct-current brushless fan |
| CN202818190U (en) * | 2012-06-05 | 2013-03-20 | 江门凯信科技实业有限公司 | High-reliability micro motor rapid brake system |
| CN105656370A (en) * | 2016-03-09 | 2016-06-08 | 广东美的制冷设备有限公司 | Air conditioner and shutdown control method and device for compressor of air conditioner |
| CN208185037U (en) * | 2017-10-31 | 2018-12-04 | 广东金力变速科技股份有限公司 | A kind of brush-less fan of strap brake function |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111134577A (en) * | 2020-01-03 | 2020-05-12 | 北京石头世纪科技股份有限公司 | Fan control method and system |
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