CN105226903A - Brushless pot motor - Google Patents
Brushless pot motor Download PDFInfo
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- CN105226903A CN105226903A CN201510464289.7A CN201510464289A CN105226903A CN 105226903 A CN105226903 A CN 105226903A CN 201510464289 A CN201510464289 A CN 201510464289A CN 105226903 A CN105226903 A CN 105226903A
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Abstract
A kind of brushless pot motor, it is characterized in that comprising after-poppet (1), rear insulating case (3), magnetic shoe (5), rotor core (6), axle core (7), front insulating case (8), fore-stock (9), casing (10) and stator coil (13), described rotor core (6) is set on axle core (7), axle core (7) is arranged in casing (10), casing (10) rear and front end is provided with after-poppet (1) and fore-stock (9), rear insulating case (3) and front insulating case (8) is respectively equipped with in after-poppet (1) and fore-stock (9), stator coil (13) is arranged in casing (10).This brushless pot motor product is mainly utilization and develops as the bone drill of medical device product and bone saw, and motor adopts high magnetic characteristics iron 42SH, the embedded structure of rotor, and rotor high-speed rotates, and prevents magnetic shoe from getting loose.
Description
Technical field
The present invention relates to technical field of motors, especially a kind of brushless pot motor.
Background technology
Brushless DC motor grows up on the basis of brush DC motors.In order to replace the mechanical commutation device of brush DC motors, people have carried out long-term exploration.Nineteen fifty-five, the D.Harrison of the U.S. has applied for the patent replacing having the mechanical brush of brushless motor with transistor commutation line first, indicates the birth of modern brushless DC motor.The progress with power electronic technology is depended in the development of brushless DC motor to a great extent.Within 1978, front Germany is formally proposed MAC brushless DC motor and driver thereof, indicates that brushless DC motor moves towards the practical stage.That understands Brushless DC Motor along with people gos deep into, and the theory of brushless DC motor also obtains perfect gradually.The research of China to brushless DC motor is started late.1987, Permanent magnet synchronous servo system and driver in the Germany metal-working plant exhibition that Beijing is held, caused the domestic extensive attention about scholar, from then on domesticly started the upsurge of development and technology transfer.Through effort for many years, the series of products of current domestic existing brushless DC motor, define certain production scale.
Present stage, although various alternating current motor and DC motor are occupied an leading position in transmission application, brushless DC motor is just subject to common concern.Brushless DC motor adopts semiconductor switch device to realize electronic commutation, namely replaces traditional contact commutator and brush with electronic switching device.As the important component part of executive component, motor must have that precision is high, speed is fast, efficiency high, and the application of brushless DC motor therefore and extensively.Energy-conserving and environment-protective have become the theme of current era development, and the high efficiency feature of brushless DC motor makes it be widely used in national economy every field.
Though brushless electric machine is short at the development time of China, but along with the increasingly mature of technology with improve obtain fast development.Be used widely in multiple fields such as model plane, medicine equipment, household electrical appliance, electric motor cars.In recent years, brushless electric machine became a kind of power fast-developing in model field.Due to the reason of output and price, brushless electric machine is used in medium-to-high grade model airplane more in the past few years, now due to the fast development of Machining Technology, the production cost of brushless electric machine declines many, it is just entering the every aspect in model field at present, from electrical remote control vehicle to electric remote control ship again to electric model airplane, ubiquitous.
DC Brushless Motor moment is large, speed-regulating range width, do not produce brush dust and electric spark, its superior performance of the little event of friction moment, and high the becoming of price hinders the principal element of its popularization and application, thus study a kind of practicality and control simpler and more direct, flexibly Timing System for DC Brushless Motor be very necessary.Due to the plurality of advantages of brushless, permanently excited direct current motor, add the development of modern electronic technology and permanent magnetic material, the performance of permanent magnetic material improves constantly and constantly reduce with price, the requirement of each application to motor is more and more higher, and permanent magnet DC brushless motor application will constantly be expanded.
Brshless DC motor is made up of motor body and driver, is a kind of typical electromechanical integrated product.Brushless DC motor has the advantages such as reliability is high, non-commutation spark, machinery noise are low, is widely used in household electrical appliance, automobile, Medical Devices, electronic instrument and automated office equipment.This project is combined closely current technical merit and the market demand, develops medical electric power driven tools brshless DC motor.
The factory of domestic production brshless DC motor is a lot, and the production technology of brshless DC motor is very ripe.According to current industrial trend, later brshless DC motor will be the dominant direction in market.The medical electric power driven tools brshless DC motor that this project intends development & production is a kind of novel brushless electric machine, possess the advantages such as volume is little, lightweight, gear range is large, efficiency is high, long service life, smooth running, noise are low, product is mainly used in electric bone saw used for medical procedures (brill), for it provides power.Medical electric power driven tools brshless DC motor ubiquity electric efficiency is in the market low, motor has magnetic shoe obscission under running up, this project is combined closely current bleeding edge and the market demand, attempt innovating on Product Process, fill up technological gap in the market, this will become the important opportunity of my development of company, has also opened up the application of brshless DC motor simultaneously.By the research and development of this product and production, company can be attained a new height in every respect, realize the transition and upgrade of company, improve the popularity of company, the development later for enterprise is laid a good foundation.
Summary of the invention
The object of the present invention is to provide a kind of brushless pot motor, with practical requirement.
Technical scheme of the present invention is:
A kind of brushless pot motor, comprise after-poppet 1, rear insulating case 3, magnetic shoe 5, rotor core 6, axle core 7, front insulating case 8, fore-stock 9, casing 10 and stator coil 13, described rotor core 6 is set on axle core 7, axle core 7 is arranged in casing 10, casing 10 rear and front end is provided with after-poppet 1 and fore-stock 9, be respectively equipped with rear insulating case 3 and front insulating case 8 in after-poppet 1 and fore-stock 9, stator coil 13 is arranged in casing 10.
Be provided with rear bearing 2 in described rear insulating case 3, in front insulating case 8, be provided with fore bearing 20.
Be provided with stator core 12 in described casing 10, before and after stator core 12, two sections are respectively equipped with front drum stand 11 and rear drum stand 14.
Described axle core 7 is also provided with axle sleeve 4, and after axle sleeve 4, insulating case 3 is positioned at inside rear insulating case 3.
Described stator core 12 adopts 6 pole 9 groove structures, stator outer diameter 29.2mm, internal diameter 16mm, and rotor core 6 is embedded, and casing 10 adopts stainless steel or stainless iron structure.
Described stator coil 13 adopts with front insulating case 8 and overlaps buckle structure, locates simultaneously, prevent end cap from sliding with rear insulating case 3 and front insulating case 8.
Described stator core 12 end adopts insulating case structure to prevent fly line, and guarantees good electrical insulation properties.
The invention has the beneficial effects as follows:
Brushless pot motor product of the present invention is mainly utilization and develops as the bone drill of medical device product and bone saw, and motor adopts high magnetic characteristics iron 42SH, the embedded structure of rotor, and rotor high-speed rotates, and prevents magnetic shoe from getting loose;
Brushless pot motor of the present invention adopts 6 pole 9 groove designs, when satisfied batch production feasibility, can reduce to the greatest extent magnetic resistance of motor and magnetic potential loss, reach reduction magnetic at different levels close, improve the object of rotor diameter simultaneously;
The stator end of brushless pot motor of the present invention adopts insulating case structure to prevent fly line, and guarantees good electrical insulation properties, and stator winding frame and insulating case adopt and overlap buckle structure, prevent end cap from sliding;
Brushless pot motor efficiency of the present invention is high: more than 80%; Motor 21000RPM High Rotation Speed, uses temperature rise to be no more than 20K; Motor rated power: 85W; Operating voltage: 5-12.8V
Brushless pot motor power density of the present invention is large, and efficiency is high, can be applicable to electric tool product, household electrical appliance.
Brushless pot motor of the present invention is mainly used in electric bone saw used for medical procedures at present and bores, and medical electric bone saw deft design is safe and reliable.There is saw blade and protect sheath function, ensure that in operation, soft tissue is injury-free.Medical electric saw drilling infinitely variable speeds, the stepless speed regulation easily of high moment of torsion can obtain any running speed, non-carbon brush motor, for main frame provides enough powerful power, meet the demand of the various different dynamic of operation.The balancing processing of consummate technique, the design science of ergonomics, makes operation accurately accurate to greatest extent, holds comfortable, indefatigability.Middle nothing is used significantly to vibrate and swing.
Brushless pot motor of the present invention adopts the in line design to product stator structure, and be convenient to the coiling of stator, inner teeth separation is the structure of 1mm, and the greatly less cogging torque of motor, increases the efficiency of motor.The concentricity requirement of stators and rotators is realized by the interference fit of insulating end plate and teeth portion, decreases the requirement to the processing of front and rear cover seam, and does not need to use screw to be fixed.Rotor adopts 6 sintered NdFeBs to carry out bonding, and magnetic shoe inserts rotor core fixed form, prevents motor height rotating speed magnetic shoe from coming off.By above design and processes optimization, guarantee that motor is in the reliability and stability made and in use procedure.
Accompanying drawing explanation
Fig. 1 is monnolithic case structural representation of the present invention.
Fig. 2 is stereo decomposing structural representation of the present invention.
In figure: 1 be after-poppet, 2 be rear bearing, 20 be fore bearing, 3 be rear insulating case, 4 be axle sleeve, 5 be magnetic shoe, 6 be rotor core, 7 be axle core, 8 be front insulating case, 9 be fore-stock, 10 be casing, 11 be front drum stand, 12 be stator core, 13 be stator coil, 14 for rear drum stand.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As Fig. 1 to 2, a kind of brushless pot motor, comprise after-poppet 1, rear insulating case 3, magnetic shoe 5, rotor core 6, axle core 7, front insulating case 8, fore-stock 9, casing 10 and stator coil 13, described rotor core 6 is set on axle core 7, axle core 7 is arranged in casing 10, casing 10 rear and front end is provided with after-poppet 1 and fore-stock 9, and be respectively equipped with rear insulating case 3 and front insulating case 8 in after-poppet 1 and fore-stock 9, stator coil 13 is arranged in casing 10.
Be provided with rear bearing 2 in rear insulating case 3, in front insulating case 8, be provided with fore bearing 20.
Be provided with stator core 12 in casing 10, before and after stator core 12, two sections are respectively equipped with front drum stand 11 and rear drum stand 14.
Axle core 7 is also provided with axle sleeve 4, and after axle sleeve 4, insulating case 3 is positioned at inside rear insulating case 3.
Stator core 12 adopts 6 pole 9 groove structures, stator outer diameter 29mm, internal diameter 15mm, and rotor core 6 is embedded, and casing 10 adopts stainless steel or stainless steel structure.
Stator coil 13 and front insulating case 8 adopt and overlap buckle structure, locate simultaneously, prevent end cap from sliding with rear insulating case 3 and front insulating case 8.
Described stator core 12 end adopts insulating case structure to prevent fly line, and guarantees good electrical insulation properties.
Brushless pot motor of the present invention, when satisfied batch production feasibility, can reduce to the greatest extent magnetic resistance of motor and magnetic potential loss, reaches reduction magnetic at different levels close, improves the object of rotor diameter simultaneously; Stator end adopts insulating case structure to prevent fly line, and guarantees good electrical insulation properties, and stator winding frame and insulating case adopt and overlap buckle structure, prevent end cap from sliding.
Embodiment recited above is only be described the preferred embodiment of the present invention; not the spirit and scope of the present invention are limited; do not departing under design concept prerequisite of the present invention; the various modification that in this area, common engineers and technicians make technical scheme of the present invention and improvement; all should fall into protection scope of the present invention, the technology contents of request protection of the present invention is all recorded in detail in the claims.
Claims (6)
1. a brushless pot motor, it is characterized in that comprising after-poppet (1), rear insulating case (3), magnetic shoe (5), rotor core (6), axle core (7), front insulating case (8), fore-stock (9), casing (10) and stator coil (13), described rotor core (6) is set on axle core (7), axle core (7) is arranged in casing (10), casing (10) rear and front end is provided with after-poppet (1) and fore-stock (9), rear insulating case (3) and front insulating case (8) is respectively equipped with in after-poppet (1) and fore-stock (9), stator coil (13) is arranged in casing (10).
2. brushless pot motor according to claim 1, is characterized in that being provided with rear bearing (2) in described rear insulating case (3), is provided with fore bearing (20) in front insulating case (8).
3. brushless pot motor according to claim 1, is characterized in that being provided with stator core (12) in described casing (10), and before and after stator core (12), two sections are respectively equipped with front drum stand (11) and rear drum stand (14).
4. brushless pot motor according to claim 1, it is characterized in that described axle core (7) is also provided with axle sleeve (4), axle sleeve (4) is positioned between rear bearing (2) and rotor core (6).
5. brushless pot motor according to claim 1, is characterized in that described stator core (12) adopts 6 pole 9 groove structures, stator outer diameter 29.2mm, internal diameter 16mm, and rotor core (6) is for embedded, and casing (10) adopts stainless steel or stainless iron structure.
6. brushless pot motor according to claim 1, it is characterized in that described front drum stand (11) and front insulating case (8) adopt and overlap buckle structure, rear drum stand (14) and rear insulating case (3) adopt and overlap buckle structure, locate with fore-stock (9), after-poppet (1) respectively simultaneously, prevent end cap from sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464289.7A CN105226903A (en) | 2015-07-31 | 2015-07-31 | Brushless pot motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464289.7A CN105226903A (en) | 2015-07-31 | 2015-07-31 | Brushless pot motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105226903A true CN105226903A (en) | 2016-01-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510464289.7A Pending CN105226903A (en) | 2015-07-31 | 2015-07-31 | Brushless pot motor |
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| CN (1) | CN105226903A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109044482A (en) * | 2018-09-25 | 2018-12-21 | 天津昊野科技有限公司 | A kind of high-speed permanent magnetic synchronous motor applied to bone drill |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09233746A (en) * | 1996-02-27 | 1997-09-05 | Souwa Denki Seisakusho:Kk | Rotor of dc motor |
| CN2909674Y (en) * | 2006-06-19 | 2007-06-06 | 徐天松 | Medical brushless hollow electric machine |
| CN102694431A (en) * | 2012-05-25 | 2012-09-26 | 福建尤迪电机制造有限公司 | Novel high-power permanent magnet brushless motor |
| EP2568578A2 (en) * | 2011-09-07 | 2013-03-13 | Samsung Electronics Co., Ltd. | Motor and washing machine having the same |
| CN203708061U (en) * | 2014-02-13 | 2014-07-09 | 常州市运控电子有限公司 | DC brushless motor |
| CN203872020U (en) * | 2014-06-04 | 2014-10-08 | 余姚市爱优特电机有限公司 | Miniature 12-pole stator-core brushless direct current motor |
| CN205081653U (en) * | 2015-07-31 | 2016-03-09 | 常州市昊升电机有限公司 | Brushless high -rotating -speed motor |
-
2015
- 2015-07-31 CN CN201510464289.7A patent/CN105226903A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09233746A (en) * | 1996-02-27 | 1997-09-05 | Souwa Denki Seisakusho:Kk | Rotor of dc motor |
| CN2909674Y (en) * | 2006-06-19 | 2007-06-06 | 徐天松 | Medical brushless hollow electric machine |
| EP2568578A2 (en) * | 2011-09-07 | 2013-03-13 | Samsung Electronics Co., Ltd. | Motor and washing machine having the same |
| CN102694431A (en) * | 2012-05-25 | 2012-09-26 | 福建尤迪电机制造有限公司 | Novel high-power permanent magnet brushless motor |
| CN203708061U (en) * | 2014-02-13 | 2014-07-09 | 常州市运控电子有限公司 | DC brushless motor |
| CN203872020U (en) * | 2014-06-04 | 2014-10-08 | 余姚市爱优特电机有限公司 | Miniature 12-pole stator-core brushless direct current motor |
| CN205081653U (en) * | 2015-07-31 | 2016-03-09 | 常州市昊升电机有限公司 | Brushless high -rotating -speed motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109044482A (en) * | 2018-09-25 | 2018-12-21 | 天津昊野科技有限公司 | A kind of high-speed permanent magnetic synchronous motor applied to bone drill |
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Application publication date: 20160106 |
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| RJ01 | Rejection of invention patent application after publication |