CN103326528A - Electromagnetic compatibility (EMC) triple-insulated anti-interference high-voltage permanent magnet brushless electric tool - Google Patents
Electromagnetic compatibility (EMC) triple-insulated anti-interference high-voltage permanent magnet brushless electric tool Download PDFInfo
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- CN103326528A CN103326528A CN2013102784610A CN201310278461A CN103326528A CN 103326528 A CN103326528 A CN 103326528A CN 2013102784610 A CN2013102784610 A CN 2013102784610A CN 201310278461 A CN201310278461 A CN 201310278461A CN 103326528 A CN103326528 A CN 103326528A
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Abstract
The invention discloses an electromagnetic compatibility (EMC) triple insulated anti-interference high-voltage permanent magnet brushless electric tool which comprises a shell, a motor driving module (10) and a motor driven by the motor driving module (10), wherein the motor comprises a stator with a stator winding (3) and a rotor with a permanent magnet. According to the EMC triple insulated anti-interference high-voltage permanent magnet brushless electric tool provided by the invention, the stator winding is arranged on the stator, and the permanent magnet is fixed on the rotor, so that electric brush accessories of the motor are structurally saved, the problems of unnecessary wear and short service life are solved, excessive gear transmission structure is eliminated, wear of the parts is alleviated, and the generated electromagnetic interference is reduced.
Description
Technical field
The present invention relates to field of power tools, the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of especially a kind of EMC.
Background technology
Development along with the electric and electronic technology, household electronic products is day by day popularized and is electronic, the day by day prosperity of radio and television, post and telecommunications and computer network, electromagnetic environment is complexity and deterioration day by day, so that the Electro Magnetic Compatibility of electrical and electronic product (the anti-EMS of EMC electromagnetic interference EMI and electromagnetism) problem also is subject to the pay attention to day by day of national governments and manufacturing enterprise.The Electromagnetic Compatibility of electronics, electric equipment products is very important quality index; it not only is related to functional reliability and the safety in utilization of product itself; but also may have influence on the normal operation of other equipment and system, be related to the protection problem of electromagnetic environment.
The full name of EMC (Electro Magnetic Compatibility) is Electro Magnetic Compatibility, it is defined as " equipment and system in its electromagnetic environment, can work and not to environment in the ability of anything formation electromagnetic disturbance that can not bear " this definition comprises the meaning aspect two, at first, this equipment should be able to work under certain electromagnetic environment, and namely this equipment should possess certain electromagnetic immunity (EMS); Secondly, the electromagnetic disturbance that this equipment self produces can not produce excessive impact, i.e. electromagnetic disturbance (EMI) to other electronic products.
Electromagnetic compatibility (ElectromagneticCompatibility) is abbreviated as Emc, is not the compatibility that refers between electricity and the magnetic, and electricity is indivisible with magnetic, mutually a kind of physical phenomenon, the physical environment of coexistence.International Electrotechnical Commission (IEC) to the definition of EMC is: refer under the condition of not damaging the contained information of signal, signal and interference can coexist.The purpose of research electromagnetic compatibility is in order to guarantee that electric appliance component or device can have an ability of normal operation in electromagnetic environment, and research electromagnetic wave mechanism and precautionary measures that social production activity and health are worked the mischief.
In field of power tools, existing electric tool adopts string utmost point motor-driven usually, motor speed turns above 30,000 usually, needs the mate gear reducing gear, and there is technological deficiency in the gear reduction output shaft output that is connected: brush-commutated device easily weares and teares, life-span is short, and electric spark can produce electromagnetic interference, affects electrical network, gear easily weares and teares, and noise is large, and bearing easily enters other greases and causes damage, motor easily transships damage, useful life is short, and maintenance cost is high, and operational reliability is poor.
Summary of the invention
For improving problems of the prior art, the present invention proposes the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of a kind of EMC, in order to improve equipment part wearing and tearing and the excessive problem of electromagnetic interference.
The anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC that the present invention proposes comprises shell, motor drive module and the motor that is driven by motor drive module, and described motor comprises with the stator of stator winding with the rotor of permanent magnet.
Preferably, described stator comprises the stator steel disc of ring-type, and is positioned at the stator winding on the stator steel disc.
Preferably, be enclosed with the nylon plastic(s) insulated ring on the outer peripheral face of described stator steel disc.
Preferably, described rotor comprises armature spindle, is enclosed within the rotor steel disc on the described armature spindle, is fixed on the permanent magnetic steel on the described rotor steel disc periphery.
Preferably, be provided with the armature spindle insulating barrier between described armature spindle and the described rotor steel disc.
Preferably, cover has the rotor magnetic steel fixing collar on the periphery of described permanent magnetic steel.
Preferably, be fixed with the driver module fin on the described motor drive module.
Preferably, when 220V voltage passed through three-phase inverter electric bridge seamless, output high pressure 310V direct voltage, described electric machine rotation, described stator winding produced the voltage of back electromotive force, and its direction is opposite with the principal voltage that offers described stator winding; Described back electromotive force is determined by the magnetic field of rotor angle speed, rotor permanent magnet generation and the number of turn of stator winding; Whenever turn over 60 electrical degrees, phase current switches once, and finish a circle mechanical rotation electric periodicity that will repeat and determined to be specially by the logarithm of rotor magnetic pole: electric periodicity/rotating speed equals the rotor magnetic pole logarithm, and wherein every pair of rotor magnetic pole is finished an electric cycle.By the EMC anti-jamming circuit, can not cause electrical network to disturb thereby can filter filtering during machine operation.
Preferably, described brushless, permanently electric tool is applicable to all electric tool products such as Profile cut-off machine, makita 4100NH, 180mm230mm electric circular saw, automobile polishing machine or stainless steel take-up winder or electric angle grinder, steel cutting machine, wall dustless sander, electric hammer or electric pick, stock wall dustless sander, electric chain saw.
The anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC that the present invention proposes, by at stator stator winding being set, and on rotor fixing permanent magnet, so that motor has structurally saved the brush accessory, avoided unnecessary wearing and tearing and too short problem of life-span, simultaneously also save too much gear drive, reduced the wearing and tearing of part, reduced the electromagnetic interference that produces.
Description of drawings
Be the clear the present invention of description and beneficial effect thereof, in conjunction with the following drawings to being described in detail of embodiment, wherein:
Fig. 1 is the structural representation of the anti-interference high voltage permanent magnet brushless power tool application of the triple insulation of EMC on Profile cut-off machine that the embodiment of the invention provides;
Fig. 2 is the structural representation of the anti-interference high voltage permanent magnet brushless power tool application of the triple insulation of EMC on makita 4100NH that the embodiment of the invention provides;
Fig. 3 is the structural representation of the anti-interference high voltage permanent magnet brushless power tool application of the triple insulation of EMC on electric circular saw that the embodiment of the invention provides;
Fig. 4 is the structural representation of the anti-interference high voltage permanent magnet brushless power tool application of the triple insulation of EMC on automobile polishing machine or stainless steel take-up winder or electric angle grinder that the embodiment of the invention provides;
Fig. 5 is the structural representation of the anti-interference high voltage permanent magnet brushless power tool application of the triple insulation of EMC on the steel cutting machine that the embodiment of the invention provides;
Fig. 6 is the structural representation of the anti-interference high voltage permanent magnet brushless power tool application of the triple insulation of EMC on the wall dustless sander that the embodiment of the invention provides;
Fig. 7 is the structural representation of the anti-interference high voltage permanent magnet brushless power tool application of the triple insulation of EMC on electric hammer or electric pick that the embodiment of the invention provides;
Fig. 8 is the structural representation of the anti-interference high voltage permanent magnet brushless power tool application of the triple insulation of EMC on stock wall dustless sander that the embodiment of the invention provides;
Fig. 9 is the structural representation of the anti-interference high voltage permanent magnet brushless power tool application of the triple insulation of EMC on electric chain saw that the embodiment of the invention provides.
Embodiment
The below describes embodiments of the invention in detail, and the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or the element with identical or similar functions from start to finish.Be exemplary below by the embodiment that is described with reference to the drawings, only be used for explaining the present invention, and can not be interpreted as limitation of the present invention.
The structure that the present invention is applied in the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC on the Profile cut-off machine as shown in Figure 1, comprise shell, motor drive module 10 and the motor that is driven by motor drive module 10, described motor comprises with the stator of stator winding 3 with the rotor of permanent magnet.
Particularly, described stator comprises the stator steel disc 2 of ring-type, and is positioned at the stator winding 3 on the stator steel disc 2.
In order to realize insulation, be enclosed with nylon plastic(s) insulated ring 1 on the outer peripheral face of described stator steel disc 2, nylon plastic(s) insulated ring 1 insulation that can effectively stator steel disc 2 be isolated from the outside.
In addition, described rotor comprises armature spindle 8, is enclosed within the rotor steel disc 6 on the described armature spindle 8, is fixed on the permanent magnetic steel 5 on described rotor steel disc 6 peripheries.By the magnetic field interaction that permanent magnetic steel 5 and stator produce, rotor driven steel disc 6 and armature spindle 8 rotate, thereby realize kinetic energy output, finish external acting.
To realize insulation between armature spindle 8 and rotor steel disc 6 and the permanent magnetic steel 5 in order making, to be provided with armature spindle 8 insulating barriers 7 between described armature spindle 8 and the described rotor steel disc 6.
Break or come off for fear of permanent magnetic steel 5 permanent magnetic steel 5 that causes that generates heat behind High Rotation Speed, cover has rotor magnetic steel fixing collar 4 on the periphery of described permanent magnetic steel 5.
Certainly, when motor drive module 10 work, can generate heat, can realize better heat radiation for motor drive module 10, can also be fixed with driver module fin 9 on the described motor drive module 10.
When 220V voltage passed through three-phase inverter electric bridge seamless, output high pressure 310V direct voltage, described electric machine rotation, described stator winding 3 produced the voltage of back electromotive force, and its direction is opposite with the principal voltage that offers described stator winding 3; Described back electromotive force is determined by the magnetic field of rotor angle speed, rotor permanent magnet generation and the number of turn of stator winding 3; Whenever turn over 60 electrical degrees, phase current switches once, and finish a circle mechanical rotation electric periodicity that will repeat and determined to be specially by the logarithm of rotor magnetic pole: electric periodicity/rotating speed equals the rotor magnetic pole logarithm, and wherein every pair of rotor magnetic pole is finished an electric cycle.By the EMC anti-jamming circuit, can not cause electrical network to disturb thereby can filter filtering during machine operation.
Described brushless, permanently electric tool is applicable to all electric tool products such as Profile cut-off machine, makita 4100NH, 180mm230mm electric circular saw, automobile polishing machine or stainless steel take-up winder or electric angle grinder, steel cutting machine, wall dustless sander, electric hammer or electric pick, stock wall dustless sander, electric chain saw.
Machine operation principle: alternating current 220V voltage input motor drive module 10,220V is by three-phase inverter electric bridge seamless, output high pressure 310V direct voltage, during electric machine rotation, each stator winding 3 can produce the voltage of back electromotive force, according to Leng law, its direction is opposite with the principal voltage that offers stator winding 3, this back electromotive force depends primarily on three factors, rotor angle speed, the magnetic field that rotor permanent magnet produces, the number of turn of stator winding 3 whenever turns over 60 electrical degree phase currents and switches once, finish the logarithm that a circle mechanical rotation electric periodicity that will repeat depends on rotor magnetic pole, every pair of rotor magnetic pole need to be finished an electric cycle, and therefore, electric periodicity/rotating speed equals the rotor magnetic pole logarithm.By the EMC anti-jamming circuit, can not cause electrical network to disturb thereby can filter filtering during machine operation.
By the EMC anti-jamming circuit, can not cause electrical network to disturb thereby can filter filtering during machine operation.It is large that the anti-interference high voltage permanent magnet brushless motor drive module of the triple insulation of EMC has starting torque, and overload capacity is strong, permanent power, and permanent rotating speed, electric brake, current overload protector, safer, have efficient high, at the bottom of the cost, stable performance.Useful life, power saving was more than 50% more than 2000 hours.
In the present embodiment, the structure of the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC of the present invention is identical with embodiment 1, its be applied on the makita 4100NH schematic diagram as shown in Figure 2.
In the present embodiment, the structure of the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC of the present invention is identical with embodiment 1, and it is applied in 180mm, and the schematic diagram on the 230mm electric circular saw as shown in Figure 3.
In the present embodiment, the structure of the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC of the present invention is identical with embodiment 1, its be applied on automobile polishing machine or stainless steel take-up winder or the electric angle grinder schematic diagram as shown in Figure 4.
In the present embodiment, the structure of the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC of the present invention is identical with embodiment 1, its be applied on the steel cutting machine schematic diagram as shown in Figure 5.
In the present embodiment, the structure of the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC of the present invention is identical with embodiment 1, its be applied on the wall dustless sander schematic diagram as shown in Figure 6.
In the present embodiment, the structure of the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC of the present invention is identical with embodiment 1, its be applied on electric hammer or the electric pick schematic diagram as shown in Figure 7.
In the present embodiment, the structure of the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC of the present invention is identical with embodiment 1, its be applied on the stock wall dustless sander schematic diagram as shown in Figure 8.
In the present embodiment, the structure of the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC of the present invention is identical with embodiment 1, its be applied on the electric chain saw schematic diagram as shown in Figure 9.
It is large that the anti-interference high voltage permanent magnet brushless motor drive module of the triple insulation of EMC of the present invention has starting torque, and overload capacity is strong, permanent power, and permanent rotating speed, electric brake, current overload protector, safer, have efficient high, at the bottom of the cost, stable performance.Useful life, power saving was more than 50% more than 2000 hours.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: in the situation that do not break away from principle of the present invention and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, scope of the present invention is limited by claim and equivalent thereof.
Claims (9)
1. anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC, comprise shell, motor drive module (10) and the motor that is driven by motor drive module (10), it is characterized in that, described motor comprises the stator of band stator winding (3) and with the rotor of permanent magnet.
2. the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC as claimed in claim 1 is characterized in that, described stator comprises the stator steel disc (2) of ring-type, and is positioned at the stator winding (3) on the stator steel disc (2).
3. the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC as claimed in claim 2 is characterized in that, is enclosed with nylon plastic(s) insulated ring (1) on the outer peripheral face of described stator steel disc (2).
4. the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC as claimed in claim 1, it is characterized in that, described rotor comprises armature spindle (8), is enclosed within the rotor steel disc (6) on the described armature spindle (8), is fixed on the permanent magnetic steel (5) on described rotor steel disc (6) periphery.
5. the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC as claimed in claim 4 is characterized in that, is provided with armature spindle (8) insulating barrier (7) between described armature spindle (8) and the described rotor steel disc (6).
6. the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC as claimed in claim 5 is characterized in that, cover has rotor magnetic steel fixing collar (4) on the periphery of described permanent magnetic steel (5).
7. the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC as claimed in claim 2 is characterized in that, is fixed with driver module fin (9) on the described motor drive module (10).
8. such as the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of each described EMC of claim 1 to 7, it is characterized in that, when 220V voltage passes through three-phase inverter electric bridge seamless, output high pressure 310V direct voltage, described electric machine rotation, described stator winding (3) produces the voltage of back electromotive force, and its direction is opposite with the principal voltage that offers described stator winding (3); Described back electromotive force is determined by the magnetic field of rotor angle speed, rotor permanent magnet generation and the number of turn of stator winding (3); Whenever turn over 60 electrical degrees, phase current switches once, and finish a circle mechanical rotation electric periodicity that will repeat and determined to be specially by the logarithm of rotor magnetic pole: electric periodicity/rotating speed equals the rotor magnetic pole logarithm, and wherein every pair of rotor magnetic pole is finished an electric cycle.
9. the anti-interference high voltage permanent magnet brushless electric tool of the triple insulation of EMC as claimed in claim 8, it is characterized in that, described brushless, permanently electric tool is applicable to Profile cut-off machine, makita 4100NH, 180mm230mm electric circular saw, automobile polishing machine or stainless steel take-up winder or electric angle grinder, steel cutting machine, wall dustless sander, electric hammer or electric pick, stock wall dustless sander, electric chain saw.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102784610A CN103326528A (en) | 2013-07-02 | 2013-07-02 | Electromagnetic compatibility (EMC) triple-insulated anti-interference high-voltage permanent magnet brushless electric tool |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013102784610A CN103326528A (en) | 2013-07-02 | 2013-07-02 | Electromagnetic compatibility (EMC) triple-insulated anti-interference high-voltage permanent magnet brushless electric tool |
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| CN103326528A true CN103326528A (en) | 2013-09-25 |
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| CN2013102784610A Pending CN103326528A (en) | 2013-07-02 | 2013-07-02 | Electromagnetic compatibility (EMC) triple-insulated anti-interference high-voltage permanent magnet brushless electric tool |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015180395A1 (en) * | 2014-05-30 | 2015-12-03 | 浙江绿动电机科技有限公司 | Angle grinder |
| CN105215951A (en) * | 2014-05-30 | 2016-01-06 | 浙江绿动电机科技有限公司 | Polishing machine |
| CN105328646A (en) * | 2014-05-30 | 2016-02-17 | 浙江绿动电机科技有限公司 | Coaxial electric tool |
| CN105437160A (en) * | 2014-05-30 | 2016-03-30 | 浙江绿动电机科技有限公司 | Marble cutting machine |
| CN105437159A (en) * | 2014-05-30 | 2016-03-30 | 浙江绿动电机科技有限公司 | Angle grinder |
| CN105449927A (en) * | 2014-05-30 | 2016-03-30 | 浙江绿动电机科技有限公司 | Desk-type cutting tool |
| CN105437161A (en) * | 2014-05-30 | 2016-03-30 | 浙江绿动电机科技有限公司 | Electric planer |
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| WO2015180395A1 (en) * | 2014-05-30 | 2015-12-03 | 浙江绿动电机科技有限公司 | Angle grinder |
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| CN105449927A (en) * | 2014-05-30 | 2016-03-30 | 浙江绿动电机科技有限公司 | Desk-type cutting tool |
| CN105437161A (en) * | 2014-05-30 | 2016-03-30 | 浙江绿动电机科技有限公司 | Electric planer |
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Application publication date: 20130925 |