CN106208544A - Smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller - Google Patents
Smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller Download PDFInfo
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- CN106208544A CN106208544A CN201610816849.5A CN201610816849A CN106208544A CN 106208544 A CN106208544 A CN 106208544A CN 201610816849 A CN201610816849 A CN 201610816849A CN 106208544 A CN106208544 A CN 106208544A
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- 239000000779 smoke Substances 0.000 title claims abstract description 84
- 239000003990 capacitor Substances 0.000 claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 16
- 229910001172 neodymium magnet Inorganic materials 0.000 claims abstract description 9
- 229920006351 engineering plastic Polymers 0.000 claims description 5
- 238000004080 punching Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 239000002360 explosive Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 5
- 238000004134 energy conservation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005086 pumping Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 235000019504 cigarettes Nutrition 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- 238000006467 substitution reaction Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
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- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000004071 soot Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
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- 238000012423 maintenance Methods 0.000 description 2
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- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 229910052742 iron Inorganic materials 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
nullA kind of smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller，It is made up of upper end cover part and bottom end cover part，Bottom end cover part includes: bottom end cover housing、Rotary shaft、Band sheath stator core body、Line bag、Rotor core body、Nd-Fe-B permanent magnetic block、Upper bearing (metal)、Lower bearing，Upper end cover part includes: upper end cover housing、Liner support、Cover plate、Pcb board、Double-core single-chip microcomputer、Cable，Its main characteristics is，Smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller are decomposed into electromagnetic component and mechanical part two large divisions，Wherein electromagnetism and the mechanical part of motor is encapsulated in bottom end cover housing，Controller is partially encapsulated in upper end cover housing，After end cap housing is closed up up and down，Form electromechanical integrated structure，Can directly substitute the single phase capacitor operating type asynchronous machine in conventional extraction hood and external control circuit，And directly common smoke exhaust ventilator is transformed into big suction smoke exhaust ventilator，Energy-saving and noise-reducing is notable，Wide market.
Description
Technical field
The present invention relates to one and be adapted to smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller, be a kind of purification kitchen
Core control part in the novel kitchen electric equipment of environment.
Background technology
Smoke exhaust ventilator is a kind of field of kitchen electric appliance equipment, and it is typically mounted on above kitchen range or sidewall, can be fired by cooking stove
The harmful oil smoke haze and the nitrogen oxides that produce in the Litter burnt and cooking process are taken away rapidly, outside discharge chamber,
Reduce and pollute, purify the air of a room.
The operation principle of smoke exhaust ventilator is, connects smoke exhaust ventilator power supply, drives motor so that centrifugal wind wheel high speed rotating,
Producing helix leeway in volute, interlobate air under the influence of centrifugal force, is thrown toward impeller outer from impeller central
Edge, leaves impeller with higher speed, enters volute and flows along its inwall, is formed in making spatial dimension certain above cooking stove
Negative pressuren zone, sucks indoor soot gas inside smoke exhaust ventilator, and soot gas filters through oil network, carries out oil smoke for the first time and divides
From, inside cigarette machine air channel, by the rotation of turbine, soot gas is carried out secondary oil smoke separation, in wind cabinet
Oil smoke is subject to centrifugal forces, and mist of oil is aggregated into oil droplet, collects lubricating cup by oil circuit, and the flue gas after purification eventually passes out
Air port and aerofluxus bank of tubes are to outdoor.
The smoke absorption effect of smoke exhaust ventilator and air quantity, blast are relevant, and wherein, air quantity is exactly exhaust air rate, is to inhale the unit interval
Lampblack absorber absorbs the total amount of discharge air, and such as, the exhaust air rate of 15 cubic meters per minute can be 1 minute the inside 15 cubic metres
The air of big kitchenette changes one time, if the volume in kitchen is 30 cubic metres, then be accomplished by 2 minutes；Blast is fume pipeline
The pressure of air outlet.The noise produced when working as smoke exhaust ventilator, has constituted noise source maximum in domestic environment, to user
For experience, that yes is the smaller the better for noise.
Smoke exhaust ventilator, by divide in version, has deep type and slim two kinds, also has type, European and cabinet type type the most deeply.
But, no matter using which kind of form, driving motor is the key core parts of smoke exhaust ventilator all the time, is to improve smoke exhaust ventilator sexual valence
The important step of ratio.Owing to decades are consistent, market the most all uses totally enclosed single phase capacitor operating type asynchronous machine,
Zinc-plated iron-clad is totally-enclosed, and motor bearings is double row ball bearing, and the capacity of start-up capacitance is 4 microFarads in addition.Single-phase capacitance
During the operating of operating type asynchronous machine can only step speed regulation, point fast shelves, middle-grade and slow shelves three speed, Energy Efficiency Ratio is low, noise is big, commonly inhales
The smoke exhaust ventilator exhaust air rate of power is about 14 cubic meters per minute, and the smoke exhaust ventilator exhaust air rate of big suction is about 22 cubes
M/min, but drive power of motor also to improve accordingly, how to improve lampblack-pumped free rate, as the electricity of smoke exhaust ventilator
Machine and control parts really need to weed out the old and bring forth the new.
Permanent-magnet brushless DC electric machine belongs to the New-type electric machine that Energy Efficiency Ratio is higher, and its advantage is fairly obvious: one be permanent magnetism without
Brushless motor does not has mechanical brush, but utilizes electronics commutation, overcome brushed DC motor because of machinery brush commutation bring
The problem of reliability, reliability is higher；Two is simple in construction, and owing to permanent magnet is arranged on rotor, armature winding is contained in stator
On so that good heat conductivity, the heat that motor produces is easier to distribute, and magnetic losses also greatly reduces；Three is its effect
Rate is high, owing to the excitation of permanent-magnet brushless DC electric machine derives from permanent magnet, so needing extra unlike AC induction motor
Exciting current is drawn, not only without copper loss but also without iron loss, advantage is bright in terms of the saving energy, raising power density on rotor from electrical network
Aobvious.Such as, the full DC frequency converting air-conditioner of the most as little as kilowatt-hour, it is simply that use permanent-magnet brushless DC electric machine to drive the sky of compressor
Adjust.The more important thing is, permanent-magnet brushless DC electric machine has more preferable governor control characteristics and low than single phase capacitor operating type asynchronous machine
The mechanical property of noise, had both possessed the advantage that ac motor structure is simple, reliable, possessed again that direct current generator is lightweight, body
Long-pending little, the feature big, dynamic property is good and speed adjusting performance is excellent of exerting oneself, is particularly suitable for direct substitution single-phase electricity in smoke exhaust ventilator
Hold operating type asynchronous machine, and traditional smoke exhaust ventilator is upgraded into energy-saving big suction smoke exhaust ventilator.
Summary of the invention
Technical problem
Although smoke exhaust ventilator permanent-magnet brushless DC electric machine has simple in construction, reliable, efficiency is high, without excitation loss, tune
Performance is good for speed, detent torque compared with big and that noise is low advantage, but the single phase capacitor operating type in direct substitution smoke exhaust ventilator is different
Step motor equally exists problems: such as permanent-magnet brushless DC electric machine system is generally made up of motor and controller two parts,
Brshless DC motor itself can not be used alone, and it must could work under the control of the controller, due to traditional permanent magnetism without
The wire harness being connected between brushless motor body with individually controller is numerous, thus inconvenient on using.The opposing party
The hall position sensor that face is placed in permanent-magnet brushless DC electric machine is easily damaged, owing to hall position sensor is to embed
Glue is encapsulated in stator slot, so once damaging, it is difficult to maintenance, and for the Hall element temperature characterisitic of position sensor
Bad, under conditions of oil pollution environment is severe, it is easily caused its stability and declines, leverage the life-span of motor.Aobvious
So, how to allow permanent-magnet brushless DC electric machine can work alone as single phase capacitor operating type asynchronous machine, how to realize smoke exhaust ventilator
With brshless DC motor and the overall-in-one control schema of controller, solve these problems, have become as current research smoke exhaust ventilator with forever
Magnetic brshless DC motor and the hot technology of controller.
Technical scheme
The present invention proposes one can directly replace former oil pumping to a kind of smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller
The design of single phase capacitor operating type asynchronous machine in cigarette machine, this mentality of designing is exactly, described smoke exhaust ventilator permanent magnetism
Brshless DC motor and controller with originally with the single phase capacitor operating type asynchronous machine of power, there is identical shell and mechanism
Size, permanent-magnet brushless DC electric machine that will be new and controller are encapsulated in the middle of the shell that original single-phase asynchronous motor is identical, from
And ensure that smoke exhaust ventilator, in the case of not making the amendment of any mould or structural change, can realize directly replacing, and make driving
Power and energy-conservation, consumption reduction, noise reduction capability is greatly promoted.
The most important characteristic of the present invention is, smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller are decomposed into motor
Motion and control two large divisions, break through the restriction of space-time, the electromagnetism and mechanical part that relate to motor movement be encapsulated in bottom end cover
In housing, controller part is then encapsulated in upper end cover housing, then by its relative independence, makes motor movement and control portion
Part combines, and after upper and lower end cap housing is closed up, forms electromechanical integrated structure, is particularly easy to assembling, it is simple to maintenance.
Its technical scheme is specific as follows:
A kind of smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller, be made up of upper end cover part and bottom end cover part, lower end
Cover includes: bottom end cover housing, rotary shaft, band sheath stator core body, line bag, rotor core body, Nd-Fe-B permanent magnetic block, on
Bearing, lower bearing, upper end cover part includes: upper end cover housing, liner support, cover plate, pcb board, double-core single-chip microcomputer, driving core
Sheet, VMOS power tube, electrochemical capacitor, cable, described bottom end cover housing and upper end cover housing are one time punching molded
Hollow cylinder, is wherein stamped with a lower bearing and supports cylindrical step on bottom end cover housing, lower bearing supports cylindrical stage
There is a shaft outlet hole at the center on rank, upper end cover housing is stamped with a upper bearing (metal) and supports cylindrical step, and bottom end cover part is with upper
End cap portion links into an integrated entity by the way of following, and it is characterized by:
The electromagnetic component of described smoke exhaust ventilator permanent-magnet brushless DC electric machine and mechanical part are encapsulated in bottom end cover housing, institute
The controller stated is arranged in upper end cover part, after bottom end cover part and upper end cover are partially closed, permanent-magnet brushless DC electric machine and
Controller unites two into one；Described band sheath stator core body is interlocked by upper and lower two-layer insulating sheath, by stator core body bag
Wrap, then line bag is first embedded in the window of band sheath stator core body, then be embedded into together in bottom end cover housing；Described
Rotor core body be arranged on the center of band sheath stator core body, the outer edge of rotor core body is embedded with the neodymium of tile
Ferrum boron permanent magnets, the center of rotor core body passes rotary shaft, rotary shaft is equipped with upper bearing (metal) and lower bearing, upper end cover part
After being partially closed with bottom end cover, upper bearing (metal) is installed to upper bearing (metal) and supports in cylindrical step, and lower bearing is installed to lower bearing and supports
In cylindrical step, rotary shaft shaft outlet hole at bottom end cover casing center stretches out；Described liner support uses fire-retardant resistance to height
Temperature engineering plastics, structure are one end open, and the other end has liner support base plate and with six hollow cylinders supporting foot,
The central authorities of liner support base plate have one to cross axial cylindrical body, cross axial cylindrical body and have a centre bore, and the inner side of liner support has
Four spacing ribs, outside band anti-slop serrations, it is tightly embedded intp in upper end cover housing；Described pcb board is four breach of a band
Circular circuit board, along the position of liner support inner side limiting-position rib, be just arranged in liner support, Surface Mount on pcb board
It is welded with double-core single-chip microcomputer, driving chip, VMOS power tube, electrochemical capacitor, the input of driving chip and double-core single-chip microcomputer
I/O pin is connected, and the outfan of driving chip is connected with the control end of VMOS power tube, the outfan of VMOS power tube and line bag
It is connected；Described cover plate is the circular slab that central authorities are with holes, can be buckled in one end of the opening of liner support, and cover plate has location
Hole, is connected it with the fixing hole on spacing rib by screw.
Described smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller, the annulus of its bottom end cover housing has the most anti-
The recessed circle of greasy dirt, the annulus of upper end cover housing has the flange collar of one oil-stain-preventing, after bottom end cover housing and upper end cover housing close up,
Its flange collar just embeds in recessed circle.
Described smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller, its upper end cover housing has one cross coil hole,
Having a through wires hole on liner support, one end of cable is welded on pcb board, after the other end is each passed through through wires hole and coil hole
Drawing, described cable is five-core cable, wherein a L end meeting AC220V, and another root connects the N end of AC220V, the 3rd
Connect protecting field, remaining two can be with an external speed governing button or an external speed-regulating potentiometer.
Described smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller, its double-core single-chip microcomputer is except carrying brushless, permanently
Outside the necessary capture/comparing unit kernel of DC MOTOR CONTROL, be integrated with in chip simultaneously high-speed multiply division arithmetic unit with
For coordinating rotating vector digital computing unit kernel.
Technique effect
Smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller that the present invention proposes have the advantages that:
1, the most important characteristic of the present invention is, smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller are decomposed into motor fortune
Move and control two large divisions, breaking through the restriction of structure space, the electromagnetism and mechanical part that are directed to motor movement are encapsulated in
In bottom end cover housing, controller is partially encapsulated in upper end cover housing, and by its relative independence, make motor movement and
Controlling parts to combine, after upper and lower end cap housing is closed up, form electromechanical integrated structure, energy-conservation, noise reduction is notable,.
2, smoke exhaust ventilator permanent-magnet brushless DC electric machine of the present invention and controller, owing to directly have employed original list
The housing of phase capacitor operating type asynchronous machine, its structure and size need not be made any change, can direct substitution former smoke pumping
Single phase capacitor operating type asynchronous machine in machine and controller scheme, the renewal of the smoke pumping facility adapting to different types of structure is changed
Generation.Under the restriction of identical housing volume, output can promote on the basis of former single phase capacitor operating type asynchronous machine
30%, its wind wheel exhaust air rate can rise to 22 cubic meters per minute from 17 traditional cubic meters per minute maximums, its oil smoke and nitrogen oxidation
The pumping-clean rate of thing can improve more than 10%, it is achieved that system saves most, total optimization.
3, smoke exhaust ventilator permanent-magnet brushless DC electric machine of the present invention and controller, owing to using Nd-Fe-B forever
Magnetic material, improves efficiency and the power density of motor to a great extent, the asynchronous electricity with the single phase capacitor operating type of Same Efficieney
Machine is compared, and its volume is identical with conventional motors, but weight only has 75%, and magnetic hystersis loss intrinsic in eddy current and material can decline
15%, energy-saving effect is obvious.
4, the present invention devises a kind of material and uses the liner support of flame-resistant high-temperature-resistant engineering plastics, is used for installing pcb board,
Ensure that controller independence on the topology.
5, built-in controller of the present invention use efficient double-core single-chip microcomputer be core control part, operation use single touch by
Key or rotational potentiometer carry out stepless speed regulation or close down control, use extremely simple；By contrast, conventionally employed single-phase capacitance fortune
The smoke exhaust ventilator of rotatable asynchronous machine at most only fast shelves, middle-grade and slow three kinds of speed-regulating modes of shelves.
6, in stator core body of the present invention, eliminate conventional position sensor Hall element, have employed maturation
Based on Based on Back-EMF Method detection three steps start technology, with realize position-sensor-free motor rotor detect control, calculate
Use back-emf flux linkage estimation method and EKF method scheme in method, support motor soft-starting operation.
7, in the case of same output, a kind of smoke exhaust ventilator permanent-magnet brushless DC electric machine of the present invention,
Owing to without exciting current, greatly reducing electromagnetism modulated interferer, thus obtaining excellent low-noise characteristic and reliability.
8, it is separately mounted in bottom end cover housing and upper end cover shell structure due to motor movement parts and controller module,
This topological structure supports that permanent-magnet brushless DC electric machine can be separately manufactured with controller, then integration Installation Modes.
Obviously, smoke exhaust ventilator permanent-magnet brushless DC electric machine of the present invention and controller, be the most no longer a kind of single
Alternative and the upgrading of technology, but a kind of set combining conservation measures and brand-new control technology, be greatly improved oil pumping
The efficiency of cigarette machine, it can directly substitute the single phase capacitor operating type asynchronous machine in conventional extraction hood and external control electricity
Road, its beyond thought effect is, with smoke exhaust ventilator permanent-magnet brushless DC electric machine of the present invention and controller for core drive division
Mounted for its user common smoke exhaust ventilator transformation and upgrade can be become big suction smoke exhaust ventilator, wide market by part.
Accompanying drawing explanation
Fig. 1 permanent-magnet brushless DC electric machine is connected figure with controller housing with wind wheel forward；
Fig. 2 permanent-magnet brushless DC electric machine and controller housing and wind wheel Opposite direction connection figure；
Fig. 3 permanent-magnet brushless DC electric machine separates outline drawing with controller housing with wind wheel forward；
Fig. 4 permanent-magnet brushless DC electric machine and controller housing reversely separate outline drawing with wind wheel；
Fig. 5 removes the permanent-magnet brushless DC electric machine after wind wheel and controller housing forward outline drawing；
Fig. 6 removes the permanent-magnet brushless DC electric machine after wind wheel and the reverse outline drawing of controller housing；
Fig. 7 permanent-magnet brushless DC electric machine and controller explosive view one；
Fig. 8 permanent-magnet brushless DC electric machine and controller explosive view two；
Fig. 9 permanent-magnet brushless DC electric machine and controller explosive view three；
Figure 10 permanent-magnet brushless DC electric machine and controller explosive view four；
Figure 11 removes the interior view of permanent-magnet brushless DC electric machine after upper end cover housing, bottom end cover housing；
Figure 12 removes the interior view after upper and lower end cap housing, band sheath stator core body and line bag；
Figure 13 liner support and pcb board view；
Figure 14 liner support and pcb board figure explosive view；
Figure 15 permanent-magnet brushless DC electric machine and controller explosive view five；
Figure 16 permanent-magnet brushless DC electric machine and controller explosive view six；
Figure 17 permanent-magnet brushless DC electric machine and controller explosive view seven；
Figure 18 permanent-magnet brushless DC electric machine and controller explosive view eight.
Label declaration:
1 upper end cover housing 2 bottom end cover housing
3 rotary shaft 4 cables
5 liner support 6 cover plates
7 band sheath stator core bodies 8 cross coil hole
9 line bag 10 through wires holes
11 shaft outlet hole 12 pcb boards
13 cross axial cylindrical body 14 upper bearing (metal)
15 lower bearing 16 Nd-Fe-B permanent magnetic blocks
17 rotor core body 18 centre bores
19 spacing rib 20 double-core single-chip microcomputers
21 VMOS power tube 22 electrochemical capacitors
23 driving chip 24 liner support base plates
25 upper bearing (metal)s support cylindrical step 26 lower bearing and support cylindrical step
27 recessed circle 28 flange collars
29 support foot 30 fixing holes
31 hole 32, location wind wheels
33 wind wheels support cylinder with rotary shaft fixed handle 34 wind wheel
35 rotary shaft screw thread 36 wind wheel blades
37 breach 38 install keyhole
Detailed description of the invention
The present invention is as shown in Fig. 1 to Figure 18.Specific embodiments of the present invention are described below in conjunction with the accompanying drawings:
A kind of smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller, be made up of upper end cover part and bottom end cover part, lower end
Cover includes: bottom end cover housing 2, rotary shaft 3, band sheath stator core body 7, line bag 9, rotor core body 17, neodymium iron boron are forever
Magnetic piece 16, upper bearing (metal) 14, lower bearing 15, upper end cover part includes: upper end cover housing 1, liner support 5, cover plate 6, pcb board 12,
Double-core single-chip microcomputer 20, driving chip 23, VMOS power tube 21, electrochemical capacitor 22, cable 4, described bottom end cover housing 2 and upper
End cap housing 1 is one time punching molded hollow cylinder, is wherein stamped with a lower bearing on bottom end cover housing 2 and props up and hold round
Cylindricality step 26, lower bearing supports the center of cylindrical step 26 shaft outlet hole 11, upper end cover housing 1 is stamped with on one
Bearings cylindrical step 25, bottom end cover part links into an integrated entity by the way of following with upper end cover part, and its feature exists
In:
The electromagnetic component of described smoke exhaust ventilator permanent-magnet brushless DC electric machine and mechanical part are encapsulated in bottom end cover housing, institute
The controller stated is arranged in upper end cover part, after bottom end cover part and upper end cover are partially closed, permanent-magnet brushless DC electric machine and
Controller unites two into one；Described band sheath stator core body 7 is interlocked by upper and lower two-layer insulating sheath, by stator core body bag
Wrap, then line bag 9 is first embedded in the window of band sheath stator core body 7, then be embedded into together in bottom end cover housing 2；
Described rotor core body 17 is arranged on the center of band sheath stator core body 7, and the outer edge of rotor core body 17 is embedded with
The Nd-Fe-B permanent magnetic block 16 of tile, the center of rotor core body 17 passes rotary shaft 3, rotary shaft 3 is equipped with upper bearing (metal) 14
With lower bearing 15, after upper end cover part and bottom end cover are partially closed, upper bearing (metal) 14 is installed to upper bearing (metal) and supports cylindrical step 25
In, lower bearing 15 is installed to lower bearing and supports in cylindrical step 26, and rotary shaft 3 is from the shaft outlet hole of bottom end cover housing 2 center
11 stretch out；Described liner support 5 uses flame-resistant high-temperature-resistant engineering plastics, structure is one end open, and the other end has liner to prop up
Frame base plate 25 hollow cylinders with six support foots 29, the central authorities of liner support base plate 25 have one to cross axial cylindrical body
13, to cross axial cylindrical body 13 and have a centre bore 18, there are four spacing ribs 19 inner side of liner support 5, outside band anti-slop serrations,
It is tightly embedded intp in upper end cover housing 1；Described pcb board 12 is a circular circuit board with four breach, props up along liner
The position of frame 5 inner side limiting-position rib 19, is just arranged in liner support 5, and on pcb board 12, Surface Mount is welded with double-core single-chip microcomputer
20, driving chip 23, VMOS power tube 21, electrochemical capacitor 22, the input of driving chip 23 draws with the I/O of double-core single-chip microcomputer 20
Foot is connected, and the outfan of driving chip 23 is connected with the control end of VMOS power tube 21, the outfan of VMOS power tube 21 and line
Bag 9 is connected, and described cover plate 6 is the circular slab that central authorities are with holes, can be buckled in one end of the opening of liner support 5, on cover plate 6
There is hole 31, location, by screw, it is connected with the fixing hole 30 on spacing rib 19.
Described smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller, the annulus of its bottom end cover housing 2 has together
The recessed circle 27 of oil-stain-preventing, the annulus of upper end cover housing 1 has the flange collar 28 of one oil-stain-preventing, bottom end cover housing 2 and upper end cover shell
After body 1 closes up, its flange collar 28 just embeds in recessed circle 27, to prevent greasy dirt from invading.
Described smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller, its upper end cover housing 1 has one cross coil hole
8, liner support 5 has a through wires hole 10, one end of cable 4 is welded on pcb board 8, and the other end is each passed through through wires hole 10
Drawing with after coil hole 8, described cable 4 is five-core cable, wherein a L end meeting AC220V, and another root meets AC220V
N end, the 3rd connects protecting field, remaining two can be with an external speed governing button or an external speed-regulating potentiometer.
Described smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller, its double-core single-chip microcomputer 8 except carry permanent magnetism without
Brushless motor controls, outside necessary capture/comparing unit kernel, to be integrated with high-speed multiply division arithmetic unit in chip simultaneously
(iMDU) and be used for coordinating rotating vector digital computing unit (iCORDIC) kernel, this is for improving permanent-magnet brushless DC electric machine
To control in real time be requisite.
The present invention eliminates three U, V, W phase lines and five position sensings that conventional permanent magnet brushless direct current generator externally provides
Device device control line, instead of various external control wire harness, enhances reliability, improve ease for use and maintainability.Compare
Under, the common smoke exhaust ventilator using single phase capacitor operating type asynchronous machine, its cable is also five-core cable, black line+red line
Be fast shelves, black line+green line be middle-grade, black line+white line is slow shelves, and yarn is protection ground wire.
Controller is the neural control axis of motor, for the hall position sensor of conventional permanent magnet brushless direct current generator
Bring many technologic troubles, in the present invention program, eliminate the scheme embedding hall position sensor in stator core,
After removing hall position sensor, present invention employs the three steps start technology based on Based on Back-EMF Method detection of maturation, with reality
The motor rotor detection of existing position-sensor-free controls, and algorithm uses back-emf flux linkage estimation method and EKF
Method scheme, these contents belong to known technology, are not the scopes proved of the present invention program.
In order to the connection of smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller and wind wheel 32 is better described, this
Invention depicts the upper end cover housing 1 of permanent-magnet brushless DC electric machine and the connection of bottom end cover housing 2 with wind wheel 32 the most respectively,
Described wind wheel 32 is the circular steel component of band wind wheel blade 36, is as good as with the wind wheel of common smoke exhaust ventilator, wherein Fig. 1 to Fig. 4
It is the various situations that are connected of smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller housing with wind wheel, permanent-magnet brushless DC electric machine
Rotary shaft 3 on have one keyhole 38 is installed, need only install and insert a gim peg at keyhole 38, then be stuck in wind wheel 32 center
Breach 37 at, then wind wheel and rotary shaft fixed handle 33 are screwed in rotary shaft screw thread 35, just by permanent-magnet brushless DC electric machine
It is fixed together with wind wheel 33 with controller housing.Fig. 1 to Fig. 4 does not has claims, simply indicates that, described smoke exhaust ventilator
It is of the same size with the single phase capacitor operating type asynchronous machine of permanent-magnet brushless DC electric machine and controller with Same Efficieney, pacifies
Holding position and mounting means, so installation can be replaced very easily.
In sum, a kind of smoke exhaust ventilator permanent-magnet brushless DC electric machine proposed by the invention and controller, be a kind of
Brand-new smoke exhaust ventilator drives pattern, and its prominent innovative design is:
The invention provides the inner chamber topological structure that a kind of range hood is brand-new, in profile at first sight, with the list of smoke exhaust ventilator
Phase capacitor operating type asynchronous machine is the same, but inner chamber design breaches the restriction of structure space completely, wherein, relates to motor
Electromagnetism and the mechanical part of motion are encapsulated in bottom end cover housing, and pcb board controller is partially encapsulated in upper end cover housing, has
Relative independence, after upper and lower end cap housing is closed up, forms smoke exhaust ventilator permanent-magnet brushless DC electric machine and controller one
Change structure.This brand-new topological structure supports that permanent-magnet brushless DC electric machine and controller can produce with segmentation, integration general assembly
And be combined into one.Due to the only one five-core cable line that motor and automatically controlled circuit are integrated in the lumen, external, thus ensure to take out
Lampblack absorber can reliable and stable work under conditions of this deep-etching of oil smoke, it is achieved that system saves most, total optimization.
Controller of the present invention is integrated on pcb board, described double-core single-chip microcomputer, driving chip, VMOS power tube
All Surface Mounts are welded on pcb board, and pcb board is arranged in the liner support using flame-resistant high-temperature-resistant engineering plastics, this liner support
It is tightly embedded intp in upper end cover housing, pcb board how anti-vibration and how to ensure that it is reliable when efficiently solving electric machine rotation
An installation difficult problem for property.
Smoke exhaust ventilator permanent-magnet brushless DC electric machine of the present invention, owing to using Nd-Fe-B permanent magnet material, nothing
The exciting current that palpus is extra, thus substantially increase efficiency and the power density of motor, by suitable winding construction and control
Mode, can drop to torque pulsation and electromagnetism modulated interferer the lowest level, can obtain excellent low noise during motor work
Characteristic, with the smoke exhaust ventilator of Same Efficieney with compared with the actual measurement of single phase capacitor operating type asynchronous machine, the phase of its volume and conventional motors
With, but weight only has 75%, and magnetic hystersis loss intrinsic in eddy current and material can decline 15%, energy-conservation, consumption reduction, noise reduction are obvious.
Any change need not be made in its structure of the present invention and size, get final product the single-phase capacitance in direct substitution former smoke exhaust ventilator
Operating type asynchronous machine and controller, adapt to the update of the smoke pumping facility of different types of structure the most especially.Actual measurement table
Bright, use permanent-magnet brushless DC electric machine and the scheme of controller, its output can be at former single phase capacitor operating type asynchronous machine
On the basis of promote 30%, wind wheel exhaust air rate can from 17 traditional cubic meters per minute maximum lift to 22 cubic meters per minute, its oil
The pumping-clean rate of cigarette and nitrogen oxides can improve more than 10%, and market prospect is had an optimistic view of.
Obviously, promising and valuable innovation is the most meaningful.Smoke exhaust ventilator brushless, permanently of the present invention
Direct current generator and controller, be the most no longer the alternative of a kind of simple technique and upgrading, but be integrated with novel topological structure, energy-conservation
Algorithm, efficient material and completely newly control technology, be greatly improved the efficiency of smoke exhaust ventilator, it provides a kind of low cost, it is simple to
Large-scale production, it is achieved permanent-magnet brushless DC electric machine and the solution of controller integral, very convenient can substitute tradition
Single phase capacitor operating type asynchronous machine in smoke exhaust ventilator and external control circuit.
In the present invention, described double-core single-chip microcomputer is solidified with two kinds of stepless speed regulation control models: if two control line
External single touch key, the stepless speed regulation that can realize keying type controls；If two control the external potentiometer of line, so that it may
To support that rotating stepless speed regulation controls, and uses extremely simple.Additionally, fume exhauster motor supported by controller of the present invention
Soft start operation.
The beyond thought effect of the present invention is, directly can be updated by mounted for user common smoke exhaust ventilator and be transformed into
For big suction smoke exhaust ventilator, or with smoke exhaust ventilator permanent-magnet brushless DC electric machine of the present invention and controller for core drive division
Part, releases big suction, energy-saving, the smoke exhaust ventilator of low noise.It is of special importance that the present invention highlight energy-conservation, lower consumption, drop
Make an uproar, the advantage of environmental protection, market prospect is the most wide.
Claims (4)
1. smoke exhaust ventilator permanent-magnet brushless DC electric machine and a controller, is made up of upper end cover part and bottom end cover part, under
End cap portion includes: bottom end cover housing (2), rotary shaft (3), band sheath stator core body (7), line bag (9), rotor core body
(17), Nd-Fe-B permanent magnetic block (16), upper bearing (metal) (14), lower bearing (15), upper end cover part includes: upper end cover housing (1), liner
Support (5), cover plate (6), pcb board (12), double-core single-chip microcomputer (20), driving chip (23), VMOS power tube (21), electrochemical capacitor
(22), cable (4), described bottom end cover housing (2) and upper end cover housing (1) are one time punching molded hollow cylinder
Body, is wherein stamped with a lower bearing and supports cylindrical step (26) on bottom end cover housing (2), lower bearing supports cylindrical step
(26) there is a shaft outlet hole (11) at center, upper end cover housing (1) is stamped with a upper bearing (metal) and supports cylindrical step (25), under
End cap portion links into an integrated entity by the way of following with upper end cover part, it is characterised in that:
The electromagnetic component of described smoke exhaust ventilator permanent-magnet brushless DC electric machine and mechanical part are encapsulated in bottom end cover housing, institute
The controller stated is arranged in upper end cover part, after bottom end cover part and upper end cover are partially closed, permanent-magnet brushless DC electric machine and
Controller unites two into one；
Described band sheath stator core body (7) is interlocked by upper and lower two-layer insulating sheath, is wrapped up by stator core body, so
After line bag (9) first embedded in the window of band sheath stator core body (7), then be embedded into together in bottom end cover housing (2)；
Described rotor core body (17) is arranged on the center of band sheath stator core body (7), rotor core body (17)
Outer edge is embedded with the Nd-Fe-B permanent magnetic block (16) of tile, and the center of rotor core body (17) passes rotary shaft (3), rotary shaft
(3) being equipped with upper bearing (metal) (14) and lower bearing (15) on, after upper end cover part and bottom end cover are partially closed, upper bearing (metal) (14) is installed
Supporting in cylindrical step (25) to upper bearing (metal), lower bearing (15) is installed to lower bearing and supports in cylindrical step (26), rotates
Axle (3) stretches out from the shaft outlet hole (11) of bottom end cover housing (2) center；
Described liner support (5) uses flame-resistant high-temperature-resistant engineering plastics, structure is one end open, and the other end has liner support
Base plate (25) the hollow cylinders with six supports foot (29), the central authorities of liner support base plate (25) have one to cross axial cylindrical
Body (13), crosses axial cylindrical body (13) and has a centre bore (18), and there are four spacing ribs (19) inner side of liner support (5),
Outside band anti-slop serrations, is tightly embedded intp in upper end cover housing (1)；
Described pcb board (12) is a circular circuit board with four breach, along liner support (5) inner side limiting-position rib
(19) position, is just arranged in liner support (5), and the upper Surface Mount of pcb board (12) is welded with double-core single-chip microcomputer (20), drives core
The I/O of sheet (23), VMOS power tube (21), electrochemical capacitor (22), the input of driving chip (23) and double-core single-chip microcomputer (20)
Pin is connected, and the outfan of driving chip (23) is connected with the control end of VMOS power tube (21), VMOS power tube (21) defeated
Go out end to be connected with line bag (9)；
Described cover plate (6) is the circular slab that central authorities are with holes, can be buckled in one end of the opening of liner support (5), cover plate (6)
On have hole, location (31), by screw, it is connected with the fixing hole (30) on spacing rib (19).
Smoke exhaust ventilator permanent-magnet brushless DC electric machine the most according to claim 1 and controller, it is characterised in that: bottom end cover
There is the recessed circle (27) of one oil-stain-preventing on the annulus of housing (2), the annulus of upper end cover housing (1) has the flange collar of one oil-stain-preventing
(28), after bottom end cover housing (2) and upper end cover housing (1) close up, its flange collar (28) just embeds in recessed circle (27).
Smoke exhaust ventilator permanent-magnet brushless DC electric machine the most according to claim 1 and controller, it is characterised in that: upper end cover
Have one to cross coil hole (8) on housing (1), liner support (5) has a through wires hole (10), one end of cable (4) are welded on PCB
On plate (8), the other end is each passed through through wires hole (10) and coil hole (8) is drawn afterwards, and described cable (4) is five-core cable,
A wherein L end meeting AC220V, another root connects the N end of AC220V, and the 3rd connects protecting field, remaining two can be with external one
Individual speed governing button or an external speed-regulating potentiometer.
Smoke exhaust ventilator permanent-magnet brushless DC electric machine the most according to claim 1 and controller, it is characterised in that: described
Double-core single-chip microcomputer (8) is in addition to carrying permanent-magnet brushless DC electric machine and controlling necessary capture/comparing unit kernel, same in chip
Time be integrated with high-speed multiply division arithmetic unit and for coordinating rotating vector digital computing unit kernel.
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| CN201610816849.5A CN106208544B (en) | 2016-09-12 | 2016-09-12 | A kind of permanent-magnet brushless DC electric machine of smoke exhaust ventilator built-in controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610816849.5A CN106208544B (en) | 2016-09-12 | 2016-09-12 | A kind of permanent-magnet brushless DC electric machine of smoke exhaust ventilator built-in controller |
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| CN106208544B CN106208544B (en) | 2018-05-15 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107131538A (en) * | 2017-06-20 | 2017-09-05 | 广东美的厨房电器制造有限公司 | Cigarette machine motor and cigarette machine |
| CN107482867A (en) * | 2017-08-21 | 2017-12-15 | 彭希南 | A kind of three-phase permanent brushless DC hub motor |
| CN111359323A (en) * | 2020-04-28 | 2020-07-03 | 佛山市顺德区美的洗涤电器制造有限公司 | Oil smoke filter equipment and lampblack absorber |
| WO2023217038A1 (en) * | 2022-05-10 | 2023-11-16 | 广东肇庆爱龙威机电有限公司 | Brushless electric motor, and air pump system for vehicle seat |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107131538A (en) * | 2017-06-20 | 2017-09-05 | 广东美的厨房电器制造有限公司 | Cigarette machine motor and cigarette machine |
| CN107482867A (en) * | 2017-08-21 | 2017-12-15 | 彭希南 | A kind of three-phase permanent brushless DC hub motor |
| CN111359323A (en) * | 2020-04-28 | 2020-07-03 | 佛山市顺德区美的洗涤电器制造有限公司 | Oil smoke filter equipment and lampblack absorber |
| WO2023217038A1 (en) * | 2022-05-10 | 2023-11-16 | 广东肇庆爱龙威机电有限公司 | Brushless electric motor, and air pump system for vehicle seat |
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| Publication number | Publication date |
|---|---|
| CN106208544B (en) | 2018-05-15 |
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Effective date of registration: 20240423 Address after: No. 1068, Kaifa West Road, Zhouxiang Town, Cixi City, Ningbo City, Zhejiang Province, 315300 Patentee after: CIXI CITY LESHI ELECTRIC MACHINE ELECTRIC APPLIANCE Co.,Ltd. Country or region after: China Address before: 410003 Hunan province Changsha Kaifu District Sifangping teachers village 5 Building No. 402 Patentee before: Peng Xinan Country or region before: China |