CN1521918A - DC brushless motor with decelerator - Google Patents
DC brushless motor with decelerator Download PDFInfo
- Publication number
- CN1521918A CN1521918A CNA2004100040965A CN200410004096A CN1521918A CN 1521918 A CN1521918 A CN 1521918A CN A2004100040965 A CNA2004100040965 A CN A2004100040965A CN 200410004096 A CN200410004096 A CN 200410004096A CN 1521918 A CN1521918 A CN 1521918A
- Authority
- CN
- China
- Prior art keywords
- driver
- decelerator
- motor
- main body
- braking mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003638 chemical reducing agent Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 230000004323 axial length Effects 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/102—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction brakes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Brushless Motors (AREA)
Abstract
The present invention provides a DC brushless motor with a decelerating machine, which is such a structure for optimally connecting the motor body, driving device, mechanical braking mechanism and decelerating machine of the DC brushless motor. The DC brushless motor 10 with a decelerating machine sequentially comprises: a driving device 12, a mechanical braking mechanism 14, and a motor body 16 on a coaxial wire L, and continuously comprises a decelerating machine 18 on the same coaxial wire L. The driving device lid 70 of the driving device 12 is also used as the lid of the mechanical braking mechanism 14.
Description
Technical field
The present invention relates to a kind of dc brushless motor that has decelerator.
Background technology
Dc brushless motor is compared with induction machine has the advantage that starting torque is big, can stand Fraquent start and stop.In addition, compare, can obtain higher precision usually with the structure of utilizing so-called convertor controls and driving induction machine.Therefore, be widely used in various fields in recent years.
Dc brushless motor is generally controlled and is driven by the controller that is called driver, this driver is pure electric component, in addition, consider from a plurality of motor main bodys in the factory being concentrated on the purpose that drives and control, often adopt driver and motor main body are laid at diverse location, are connected respectively to structure on separately the motor main body with cable.
But because productions a small amount of, many kinds need etc., the layout designs that requirement can drive independently and control the equipment in the factory like this, still places various device in separately the place just to drive more easily and control in recent years.
Based on this viewpoint, also proposed in recent years as non-patent literature 1 (with reference to figure 2) record, that motor main body 2 and its driver is 4 integrated, drive and the motion of the one-piece type dc brushless motor 6 of driving of control motor main body 2 as monomer.
Non-patent literature 1
The one-piece type brushless electric machine catalogue of the circuit of Panasonic Electric Equipment Industrial Co.,Ltd's motor branch (in September, 2002).
For example, drive the dc brushless motor of shutter or electrically driven curtain or the dc brushless motor of driving lowering or hoisting gear etc., must keep being driven the state that object stops at the optional position.In this purposes, when stopping, when power supply is disconnected, must need to be used for and to be driven the mechanical braking mechanism that object remains on halted state.
In addition, use in this purposes in the occasion of dc brushless motor, directly use can make rotating speed too high, and most cases must attach decelerator.
Drive the occasion of subsidiary mechanical braking mechanism in the one-piece type dc brushless motor, for example when the output shaft side of motor main body is set up described mechanical braking mechanism, described mechanical braking mechanism will be installed between motor main body and the decelerator, can produce the problem such as difficult in maintenance of described mechanical braking mechanism.In addition, if when mechanical braking mechanism is installed in driver, opposite with a motor main body side, just must form the structure that the motor shaft that makes the motor main body connects the driver center, produce problems such as design of Driver difficulty.
Summary of the invention
The present invention is based on these situations that in the past occurred and proposes, and its objective is provides a kind of driver one-piece type dc brushless motor, has the structure that this driver, motor main body, mechanical braking mechanism and decelerator are the most reasonably disposed technically.
In order to solve above-mentioned problem, in the dc brushless motor that has a decelerator of the present invention, on motor main body, connecting decelerator with being integral, having mechanical braking mechanism, can apply braking the rotation of the motor shaft of described motor main body by the dc brushless motor of driver control; Described driver, described mechanical braking mechanism, described motor main body and described input shaft of speed reducer are contained on the same axis by above der group.
In the present invention, driver, mechanical braking mechanism, motor main body and decelerator (power shaft) are installed on same axis in this order, and the motor shaft of motor main body needn't connect driver.In addition, driver and being integral of motor main body so other driver (controller) needn't externally be set, also need not be installed cable therebetween.
In addition, mechanical braking mechanism is installed between driver and the motor main body, makes the extension minimum of the motor shaft of motor main body, and the dismounting of driver is easier than the dismounting of (the lubricated wet goods of existence) decelerator.For example can also avoid driver to be installed between motor main body and the decelerator and the generation of the problem difficult in maintenance that causes in advance.
And described driver is provided with the driver end cap in described mechanical braking mechanism side, and, this driver end cap is also used as the end cap of this brake mechanism, so, carrying out mechanical braking mechanism when safeguarding, driver positively can be removed together with end cap (roughly fully independently state).In addition,, just can directly expose mechanical braking mechanism, can safeguard mechanical braking mechanism immediately by taking off this driver.
Description of drawings
Fig. 1 is the profile of the dc brushless motor structure of the band decelerator that is suitable for of expression the present invention.
Fig. 2 is the profile of the one-piece type dc brushless motor structure of the existing driving of expression.
Embodiment
Below, describe embodiments of the invention with reference to the accompanying drawings in detail.
Fig. 1 represents to be suitable for the embodiment of dc brushless motor of the band decelerator of embodiment of the present invention.
The dc brushless motor 10 of this band decelerator is included in same axis L and goes up driver 12, mechanical braking mechanism 14 and the motor main body 16 that order is installed, and in addition, decelerator 18 also is installed on the same axis L continuously.
Described driver 12 is transformed to direct current (DC) with single-phase or three-phase alternating current (AC), produces the electric energy of control and drive motors main body 16 simultaneously.These driver 12 built-in regenerative braking circuits (figure slightly) are designed to can reclaim the braking energy of generation when braking.Also have, rely on the braking of motor main body 16 of the function of this driver 12, be the velocity of rotation that reduces in rotating after all, and do not have the function of the braking in keeping stopping.This body structure of relevant this driver 12 and did not have specific difference, diagram that the Therefore, omited is detailed and specific description in the past.
Described mechanical braking mechanism 14 also can carry out the mechanical type braking to the rotation of motor main body 16 when power supply disconnects.The motor shaft 20 of motor main body 16 extends and is inserted into the centre of this mechanical braking mechanism 14, and rotating disk (the 1st friction plate) 22 can be rotated with this motor shaft 20.And electric motor end cap 24 is installed on the housing main body 28 by bolt 26.On this electric motor end cap 24, fixing the fixed disk (the 2nd friction plate) 30 that stands facing each other with described rotating disk 22 by bolt 32.
Mechanical braking mechanism 14 has following structure: in the halted state that comprises that power supply disconnects, keep rotating disk 22 and fixed disk 30 by not shown spring-biased state (on-position), produce the electromagnetic force that just overcomes this pushing force in the running, and form release condition.Can control the electromagnetic force of generation by the increase and decrease release current this moment, also can adjust the braking force that provides.
Described motor main body 16 is a brushless type, can be driven by direct current (DC).The rotation control of relevant this motor main body 16 is all from driver 12.
Described decelerator 18 adopts engagement type planetary gear construction in the swing in this example.Be the inside that the motor shaft 20 of motor main body 16 extends to decelerator 18, so just had function as decelerator 18 power shafts (40).External gear 44 is assembled into the outside of this power shaft (40) by eccentric body 42, can freely swing rotation, and in be engaged on the internal gear 46 of stationary state.External gear 44 and internal gear 46 only differ 1-3 the number of teeth.The structure of described decelerator 18 is to pass to pinion frame 50 by the sold inside the country 48 rotation compositions with external gear 44, from taking out power with these pinion frame 50 incorporate output shafts 52.
In addition, the load-side end cap 60 of motor main body 16 is also used as the input side end cap and the housing main body 28 formation one of decelerator 18.The load-side end cap 64 of decelerator 18 is fixed on the housing main body 28 by bolt 68 with internal gear 46 all-in-one-piece decelerator shells 66.
As can be seen from Figure 1, in the driver 12,14 sides are provided with driver end cap 70 in mechanical braking mechanism, and this driver end cap 70 is also used as the end cap of mechanical braking mechanism 14.Driver end cap 70 is fixedlyed connected with the flange 74 of housing main body 28 by bolt 72.Being electrically connected by cable 80,82 of driver 12 sides and mechanical braking mechanism 14 and motor main body 16 sides realizes.The convenience when separating is considered in the connection of cable 80,82, realizes by the socket 84 that can freely plug.In addition, when the surplus of cable is longer, needn't need socket specially.
The following describes the effect of this embodiment.
Motor main body 16 is to utilize the rotary state of being controlled (comprising regenerative braking) motor shaft 20 by the DC driven electric current of driver 12 controls basically.During the rotation of motor shaft 20, mechanical braking mechanism 14 maintains release condition substantially.The rotation of motor shaft 20 is directly passed to decelerator 18 sides as the rotation of the power shaft (40) of decelerator 18, decelerate to the speed reducing ratio of regulation according to known effect after, from output shaft 52 outputs.
Here, in order to keep this halted state when motor shaft 20 stops, the release current of mechanical braking mechanism 14 is disconnected, the elastic force by spring makes rotating disk 22 and fixed disk 30 frictional engagement.Need not to consume specially electric power like this and just can keep this on-position.Therefore, will be for example shutter, electrically driven curtain or all kinds of lowering or hoisting gears etc. do not add equipment that measure will fall because of action of gravity as be driven object the time, this is driven object can be fixed on position arbitrarily.
Among this embodiment, motor main body 16 is connected with driver 12 one, need not other driver (controller), so also just need not cable that is electrically connected etc.In addition, mechanical braking mechanism 14 is installed between motor main body 16 and the driver 12, makes the extension minimum of motor shaft 20, and motor shaft 20 do not run through the center of driver 12, so the design of driver 12 is also easier.
In addition, take off bolt 72, just can take off driver end cap 70 together with driver 12, this disassembling section is compared with the dismounting of the decelerator 18 that for example (lubricating oil arranged), and is very simple.In addition, cable 80,82 is connecting by socket 84 detachable ground, also makes the separation of the cable 80,82 of driver 12, again in conjunction with easily.
In addition, driver end cap 70 is also used as the end cap of mechanical braking mechanism 14, takes off driver 12, just exposes mechanical braking mechanism 14, so, also safeguard this mechanical braking mechanism 14 easily.
In addition, mechanical braking mechanism 14 is not located between motor main body 16 and the decelerator 18, so, keep very high rigidity state under, can realize easily that motor shaft 20 directly becomes the structure of the power shaft of decelerator 18 (40).
By above structure, prevented the increase of axial length of the dc brushless motor 10 of band decelerator, simultaneously, 4 component parts are that driver 12, mechanical braking mechanism 14, motor main body 16 and decelerator 18 can be realized reasonably being connected with the state of high rigidity.
In addition, in the foregoing description, as decelerator 18, adopted the decelerator of engagement type planetary gear type in the swing, but the present invention there is no particular restriction to the concrete structure of decelerator.
In addition, about the structure of mechanical braking mechanism 14, there is not particular restriction yet.
The invention effect
Use the present invention, particularly slow down about the band that driver and mechanical braking mechanism have been installed The direct current brushless electric machine of device has prevented that greatly the generation of fault and the increase of axial length etc. from asking Topic can obtain and make each parts rationally connection and integrated good result simultaneously.
Claims (2)
1. dc brushless motor that has decelerator is connecting decelerator with being integral on the motor main body by the dc brushless motor of driver control, it is characterized in that,
Have mechanical braking mechanism, can apply braking the rotation of the motor shaft of described motor main body;
Described driver, described mechanical braking mechanism, described motor main body and described input shaft of speed reducer are contained on the same axis by above der group.
2. the dc brushless motor that has decelerator as claimed in claim 1 is characterized in that,
Described driver is provided with the driver end cap in described mechanical braking mechanism side, and this driver end cap is also used as the end cap of this mechanical braking mechanism.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003032395A JP3740470B2 (en) | 2003-02-10 | 2003-02-10 | DC brushless motor with reduction gear |
| JP200332395 | 2003-02-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1521918A true CN1521918A (en) | 2004-08-18 |
| CN100373748C CN100373748C (en) | 2008-03-05 |
Family
ID=33018755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100040965A Expired - Fee Related CN100373748C (en) | 2003-02-10 | 2004-02-09 | DC brushless motor with decelerator |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP3740470B2 (en) |
| KR (1) | KR100514427B1 (en) |
| CN (1) | CN100373748C (en) |
| TW (1) | TWI231083B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1992506B (en) * | 2005-12-29 | 2010-07-14 | 三星电机株式会社 | Apparatus and method for controlling the number of rotations per unit time of brushless DC motor |
| CN101258672B (en) * | 2005-08-09 | 2011-10-05 | Nxp股份有限公司 | Driver for a brushless motor and data reading/writing device comprising a brushless motor controlled by such a driver |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007247635A (en) * | 2006-03-20 | 2007-09-27 | Nabtesco Corp | Windmill driving device |
| CN103956851A (en) * | 2014-05-06 | 2014-07-30 | 刘磊 | High-torque motor |
| TWI655380B (en) * | 2017-12-29 | 2019-04-01 | 州巧科技股份有限公司 | Flat type reducer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2265433Y (en) * | 1995-07-17 | 1997-10-22 | 厦门电机实业总公司 | Integral scrolled door driving device |
| JP2001161091A (en) * | 1999-11-30 | 2001-06-12 | Ito Denki Kk | Control method for motor roller |
-
2003
- 2003-02-10 JP JP2003032395A patent/JP3740470B2/en not_active Expired - Fee Related
- 2003-12-08 KR KR10-2003-0088451A patent/KR100514427B1/en not_active IP Right Cessation
- 2003-12-09 TW TW092134719A patent/TWI231083B/en not_active IP Right Cessation
-
2004
- 2004-02-09 CN CNB2004100040965A patent/CN100373748C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101258672B (en) * | 2005-08-09 | 2011-10-05 | Nxp股份有限公司 | Driver for a brushless motor and data reading/writing device comprising a brushless motor controlled by such a driver |
| CN1992506B (en) * | 2005-12-29 | 2010-07-14 | 三星电机株式会社 | Apparatus and method for controlling the number of rotations per unit time of brushless DC motor |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200421693A (en) | 2004-10-16 |
| JP3740470B2 (en) | 2006-02-01 |
| JP2004248339A (en) | 2004-09-02 |
| TWI231083B (en) | 2005-04-11 |
| CN100373748C (en) | 2008-03-05 |
| KR20040073266A (en) | 2004-08-19 |
| KR100514427B1 (en) | 2005-09-13 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 |