CN101350548A - Explosion-proof permanent-magnet brushless DC motor - Google Patents
Explosion-proof permanent-magnet brushless DC motor Download PDFInfo
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- CN101350548A CN101350548A CNA2007100528031A CN200710052803A CN101350548A CN 101350548 A CN101350548 A CN 101350548A CN A2007100528031 A CNA2007100528031 A CN A2007100528031A CN 200710052803 A CN200710052803 A CN 200710052803A CN 101350548 A CN101350548 A CN 101350548A
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Abstract
The present invention relates to an explosion-proof permanent-magnet brushless DC motor and comprises a motor body and a motor controller. The motor body is a permanent-magnet brushless DC motor; a permanent-magnet rotor alnico and a stator winding are arranged in the motor body; the stator winding overhang is provided with a position transducer of rotor alnico; the position transducer of rotor alnico is connected with the motor controller; an explosion-proof shell is arranged outside the motor body and the motor controller to form an integrative explosion-proof structure for the motor body and the motor controller. The brushless DC motor overcomes the problems of switching spark, electromagnetic interference, poor reliability, and so on, which are caused by the dependence on mechanical electrical brush in the prior art, and has the advantages of no switching spark, no electromagnetic interference, no rotor loss, security, excellent explosion-proof performance, high reliability, long service life, maintenance-free performance, high efficiency, energy-saving performance, and excellent high-velocity performance. Moreover, the brushless DC motor can operate for thousands of rounds, and has a regulating range of 1 to 100 and excellent sealing performance. The brushless DC motor also has the advantage of working in the environments of high vacuum, corrosive gas, liquid medium, and so on.
Description
Technical field
The present invention relates to a kind of flame-proof electric motor, is a kind of explosion-proof brushless DC motor that provides power for the engineering machinery used in other explosive gas atmospheres except that the colliery such as gas station, chemical industry, airport, priming system, battlefield or main battle weaponry specifically.
Background technology
Explosion-proof DC motor is as the power-equipment that uses in a kind of explosive gas atmosphere, because the mechanical property and the governor control characteristics of the linearity that it possessed are widely used in control precision and require to do control on the equipment high, that dynamic characteristic is good, starting torque is big, drive and use.The explosion-proof DC motor of prior art, what adopt is that the brush DC motor is arranged, have the following disadvantages: the brush that, must depend on machinery commutates, thereby bring problems such as commutation spark, electromagnetic interference, poor reliability, had a strong impact on its useful life, and needed often to safeguard, two, owing to be blast resistance construction, maintenance work relates to the safety of explosion-proof performance, needs very strict, loaded down with trivial details working procedure; Three, owing to there is commutation spark, make its governor control characteristics be subjected to great limitation, can not high-speed cruising (usually below 10000 rev/mins), speed adjustable range little (having only 1: 10 usually); Four, its rotor field is produced by coil electricity, has serious rotor loss and heating problem, greatly reduces power output and efficient, equally also influences its useful life.
Summary of the invention
For overcoming the defective of prior art, the object of the present invention is to provide a kind ofly to replace having brush DC motor, non-commutation spark, no electromagnetic interference, no rotor loss, speed-regulating range width, reliability height, long, non-maintaining, energy-efficient explosion-proof permanent-magnet brushless DC motor of life-span with brushless, permanently excited direct current motor.
The technical scheme that realizes the object of the invention is: a kind of explosion-proof permanent-magnet brushless DC motor, comprise motor body, electric machine controller, it is characterized in that: motor body is a permanent-magnet brushless DC electric machine, permanent magnet rotor magnet steel and stator winding are arranged in the motor body, and motor body and electric machine controller are equipped with explosion-resistant enclosure respectively; Motor body and electric machine controller are connected as a single entity by explosion-resistant enclosure, and to constitute one explosion-proof.
Described explosion-resistant enclosure comprises motor protecgulum, motor housing, motor bonnet, control box, control lid.Motor protecgulum, motor housing, motor bonnet, control box, control lid are connected to form an explosion-proof integral body by trip bolt; The motor protecgulum is equipped with the rotor anti-explosion set, and control box covers switch operator and cable entry are housed.
Beneficial effect of the present invention: owing to adopted brushless, permanently excited direct current motor to replace having the brush DC motor, overcome the fatal shortcoming that the brush DC motor is arranged, non-maintaining, energy-efficient, its major advantage shows as:
1. owing to cancelled mechanical commutator, non-commutation spark, not have electromagnetic interference, do not have electric contact sparking, safety, explosion-proof are good, and radio interference is low, mechanicalness noise is low, and reliability height, life-span are long, needn't often carry out maintenance and repair; High speed performance is superior, can work in hundreds thousand of commentaries on classics; Good speed adjustment features, speed adjustable range can reach 1: 100; Good seal performance can work in high vacuum, gas medium and liquid medium environment are corrosive;
2. do not have rotor loss,, solved rotor heating and loss problem, improved power density, efficient and the working temperature of motor greatly because rotor has adopted permanent magnetic steel;
3. electric machine controller adopts electronic circuit, and control performance is superior, can satisfy and control requirement more flexibly;
4. electric machine controller and motor body one are explosion-proof, make motor be convenient to more install, use, carry.
The embodiment that provides below in conjunction with accompanying drawing further describes the present invention.
Description of drawings
Accompanying drawing is a structural representation of the present invention.
Embodiment
As shown in drawings, what motor body 1 adopted is brushless, permanently excited direct current motor, and the rotor magnetic steel 4 of motor body 1 adopts rare-earth Nd-Fe-B permanent magnetic material to produce the rotor field; Three rotor magnetic steel position transducers 6 are equipped with in stator winding 5 ends, and in order to the position of detection rotor magnet steel 4, rotor magnetic steel position transducer 6 is connected with electric machine controller 2, realize commutation by electric machine controller 2.Explosion-resistant enclosure 3 is arranged outside motor body 1 and the electric machine controller 2: explosion-resistant enclosure 3 comprises motor protecgulum 7, motor housing 8, motor bonnet 9, control box 10, control lid 11, rotor anti-explosion set 12, switch operator 13 and cable entry 14.Motor protecgulum 7, motor housing 8, motor bonnet 9, control box 10, control lid 11 connect into an integral body by trip bolt 15, and it is explosion-proof with electric machine controller 2 one to form motor body 1.
Claims (3)
1, a kind of explosion-proof permanent-magnet brushless DC motor, comprise motor body (1), electric machine controller (2), it is characterized in that: motor body (1) is a permanent-magnet brushless DC electric machine, and permanent magnet rotor magnet steel (4) and stator winding (5) are arranged in the motor body (1); Motor body (1) and electric machine controller (2) be outer an explosion-resistant enclosure (3), and motor body (1) and electric machine controller (2) are explosion-proof by explosion-resistant enclosure (3) the formation one that is connected as a single entity.
2, explosion-proof permanent-magnet brushless DC motor as claimed in claim 1, it is characterized in that: described explosion-resistant enclosure (3) comprises motor protecgulum (7), motor housing (8), motor bonnet (9), control box (10), control lid (11), and motor protecgulum (7), motor housing (8), motor bonnet (9), control box (10), control lid (11) are connected to form motor body (1) and the explosion-proof integral body of electric machine controller (2) one by trip bolt (15); Motor protecgulum (7) is equipped with rotor anti-explosion set (12), well is housed on the control lid (11) closes operating parts (13) and cable entry (14).
3, explosion-proof permanent-magnet brushless DC motor as claimed in claim 1, it is characterized in that: rotor magnetic steel position transducer (6) is equipped with in stator winding (5) end of described motor body (1), and rotor magnetic steel position transducer (6) is connected with electric machine controller (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100528031A CN101350548A (en) | 2007-07-19 | 2007-07-19 | Explosion-proof permanent-magnet brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100528031A CN101350548A (en) | 2007-07-19 | 2007-07-19 | Explosion-proof permanent-magnet brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101350548A true CN101350548A (en) | 2009-01-21 |
Family
ID=40269192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100528031A Pending CN101350548A (en) | 2007-07-19 | 2007-07-19 | Explosion-proof permanent-magnet brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101350548A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860162A (en) * | 2010-05-26 | 2010-10-13 | 煤炭科学研究总院太原研究院 | Anti-explosion permanent magnet direct-current brushless motor with controller |
| CN102457152A (en) * | 2010-10-29 | 2012-05-16 | 溧阳天力特种电机有限公司 | Special rare earth permanent magnetism brushless high speed motor for new energy automobile |
| CN113659777A (en) * | 2021-10-11 | 2021-11-16 | 常州宝罗电机有限公司 | Permanent-magnet DC brushless motor |
-
2007
- 2007-07-19 CN CNA2007100528031A patent/CN101350548A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101860162A (en) * | 2010-05-26 | 2010-10-13 | 煤炭科学研究总院太原研究院 | Anti-explosion permanent magnet direct-current brushless motor with controller |
| CN101860162B (en) * | 2010-05-26 | 2011-07-27 | 煤炭科学研究总院太原研究院 | Anti-explosion permanent magnet direct-current brushless motor with controller |
| CN102457152A (en) * | 2010-10-29 | 2012-05-16 | 溧阳天力特种电机有限公司 | Special rare earth permanent magnetism brushless high speed motor for new energy automobile |
| CN113659777A (en) * | 2021-10-11 | 2021-11-16 | 常州宝罗电机有限公司 | Permanent-magnet DC brushless motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090121 |