CN1290731C - Driving gear of electric vehicle - Google Patents
Driving gear of electric vehicle Download PDFInfo
- Publication number
- CN1290731C CN1290731C CNB2004100078248A CN200410007824A CN1290731C CN 1290731 C CN1290731 C CN 1290731C CN B2004100078248 A CNB2004100078248 A CN B2004100078248A CN 200410007824 A CN200410007824 A CN 200410007824A CN 1290731 C CN1290731 C CN 1290731C
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- China
- Prior art keywords
- motor
- electro
- reduction gear
- mentioned
- input shaft
- Prior art date
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Gear Transmission (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Automatic Cycles, And Cycles In General (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
To make lightweight and compact an electric motor or the entire drive and simultaneously improve its manufacturability. The drive of the motor operated vehicle transmits the power of the electric motor to drive wheels via a reduction gear mechanism and includes an electromagnetic brake mechanism for braking. In the driver, the electromagnetic brake mechanism 21 is disposed between the electric motor 22 and the reduction gear mechanism 19 as seen in a power transmission sequential manner. The coupling part (coupling member 38) of the electric motor 22 to the reduction gear mechanism 19 is disposed at the upstream side from the electromagnetic brake mechanism 21 as seen in the power transmission sequential manner.
Description
Technical field
The present invention relates to a kind of small-sized electric vehicle that utilizes electric motor power to walk, more particularly, the present invention relates to a kind of actuating device that comprises braking with the elec. vehicle of electromagnetic braking mechanism.
Background technology
For example the present invention relates to 3～4 of uses such as person at a kind of advanced age and take turns small-sized electric vehicle, it utilizes reduction gear that electric motor power is sent to drive wheel, and comprise braking electromagnetic braking mechanism, for example the spy opens flat 10-164705 communique (the flat 10-164705 of Japanese unexamined knot patent application) and has introduced a kind of like this small-sized electric vehicle.This electromagnetic braking mechanism and the coaxial setting of the output shaft of electro-motor, corresponding to the main driven wheel (miniature gears) that is set at output shaft one end, electromagnetic braking mechanism is set at the other end of output shaft.
Electromagnetic braking mechanism to the output shaft brake activation power of electro-motor, brakes the drive wheel of small-sized electric vehicle when the power of electro-motor is disconnected.If be provided with this electromagnetic braking mechanism, owing to do not need brake service, becoming in the manipulation of small-sized electric vehicle is easy to simultaneously, owing to need not to be provided with mechanical brake mechanism, can obtain the simple effect of body construction.
, for the maintainability that improves exchange etc. and electro-motor self taking off property etc., the main driven wheel of electro-motor output shaft with respect to output shaft can be mounted with taking off.
But, because above-mentioned electromagnetic braking mechanism is set at the other end of output shaft, in case the braking force from electromagnetic braking mechanism plays a role, just the connecting part between electro-motor output shaft and output shaft and main driven wheel applies powerful torque load, in order to ensure their durability, it is big that the external diameter of output shaft self must become.In addition, need use spline chimeric and spacing with bolt at the connecting part between output shaft and the main driven wheel, these maximize and high weight electro-motor, and simultaneously, it is difficult that the manufacturing of actuating device periphery also becomes.
Summary of the invention
The objective of the invention is to solve above-mentioned prior art problems, a kind of actuating device of elec. vehicle is provided, it can improve manufacturing when making all light weights of electro-motor and actuating device and compact conformation, can reduce the vibration of electro-motor and rotate noise.
Be used to realize elec. vehicle actuating device a kind of according to the invention that above-mentioned purpose provides be a kind of utilize reduction gear with the power of electro-motor when drive wheel transmits, comprise the actuating device of braking with the elec. vehicle of electromagnetic braking mechanism, its characteristics are to see in proper order by the power transmission, above-mentioned electromagnetic braking mechanism is arranged between reduction gear and the electro-motor, connecting part between above-mentioned electro-motor and the above-mentioned reduction gear is arranged on the upstream side of above-mentioned electromagnetic braking mechanism, and the coupler parts that resin is made are installed on the above-mentioned connecting part.
If employing said structure, because the braking force of electromagnetic braking mechanism only acts on after the reduction gear, do not act on the output shaft of electro-motor, can realize that the electro-motor weight-saving simultaneously, the designs simplification of the connecting part between electro-motor output shaft and the reduction gear can be made, manufacturing can be improved.In addition, because the connecting part between reduction gear and the electro-motor is arranged on the upstream side of above-mentioned electromagnetic braking mechanism, can simplify the structure of above-mentioned connecting part.And, because the coupler parts that resin is made are installed in above-mentioned connecting part, can relax the collision impact of the input shaft of the output shaft of electro-motor and reduction gear, can reduce the revolution noise of electro-motor.
And, the characteristics of elec. vehicle actuating device according to the invention are, connecting part between electro-motor output shaft and the reduction gear input shaft is arranged on an end of this input shaft, main driven wheel is arranged on the other end of this input shaft, the electromagnetic braking mechanism shaft is contained on the input shaft pars intermedia periphery.In addition, with the reduction gear setting in the enclosure, utilize bearing that reduction gear input shaft axle is propped up forefront in the enclosure, above-mentioned electro-motor is fixed on the outside of shell with the coaxial heart of the output shaft of electro-motor.Thereby, can realize the lightweight and the compact conformation of actuating device.
In elec. vehicle actuating device according to the invention, make the input shaft engagement of the output shaft and the reduction gear of above-mentioned coupler parts and electro-motor on one side, described engagement is relatively moved on one side along diameter of axle direction, in input shaft side and output shaft side, the direction that relatively moves of described engagement staggers roughly 90 °, thereby the axle core skew between described output shaft and the described input shaft can be absorbed easily.Can reduce the noise and the easier manufacturing that cause by the skew of described axle core.
By the narration of hereinafter being carried out in conjunction with the accompanying drawings, above-mentioned and further feature of the present invention will become clearer.
Description of drawings
Fig. 1 is the left front oblique drawing as the battery-driven car chair of an example having used the elec. vehicle that meets a kind of embodiment of actuating device of the present invention;
Fig. 2 is the planar view of elec. vehicle;
Fig. 3 is the enlarged cross-sectional view of actuating device;
Fig. 4 partly amplifies IV among Fig. 3 and shows the view of one embodiment of the present invention;
Fig. 5 is the cross sectional drawing after connector component is amplified;
Fig. 6 is the left side view of the connector component seen along VI direction among Fig. 5;
Fig. 7 is the right side view of the connector component seen along VII direction among Fig. 5.
The specific embodiment
Hereinafter with reference to the accompanying drawings embodiment of the present invention is introduced
Battery-driven car chair 1 as illustrated in fig. 1 and 2 has pair of right and left front-wheel 3 and the trailing wheel 4 that is configured in 2 four jiaos of car bodies, leg shield 5 is by the upright front portion that is located at car body 2, the bearing circle 6 of handling front-wheel 3 is set at the top of leg shield 5, guidance panel 7 and acceleration control stalk 8 is arranged on the central portion of bearing circle 6.On the other hand, back vehicle body 9 is set at the rear portion of car body 2, and vehicle seat 10 is arranged on the vehicle body 9 of back, and sunken bed formula stretcher 11 is set between leg shield 5 and the back vehicle body 9.
Be set at the in-to-in while of vehicle body 9 afterwards at pair of right and left storage battery 14 and controller 15, actuating device 16 is set at the inside of back vehicle body 9.Shown in Fig. 3 enlarged view, actuating device 16 has following structure, reduction gear 19, differential gear train 20 and braking just uses electromagnetic braking mechanism 21 by in the metal shell 18 of interior plant, electro-motor 22 is fixed on outside the metal case 18, axletree pipe 24 and 25 is fixed on the metal case 18 aftermost left and right sides, and axletree 26,27 is supported on respectively in axletree pipe 24 and 25.
Left and right sides trailing wheel 4 is fixed on the two ends of axletree 26,27, and the front end that is set at the pair of right and left slave arm 28 of axletree pipe 24 and 25 outer ends is connected on the vehicle body frame not shown in the figures by pivot 29.Actuating device 16 and trailing wheel 4 are free to rotate around pivot 29.
The output shaft 31 of electro-motor 22 adopts lateral attitude to utilize bolt 32 to be fixed on the forefront left surface of shell 18 along the overall width direction, and output shaft 31 is outstanding from the right-hand member of electro-motor 22, and speed sensor 33 grades are set at the left end of electro-motor 22.
On the other hand, shown in Fig. 4 enlarged view, the input shaft 35 of reduction gear 19 is supported on forefront in the shell 18 by bearing 36,37, with output shaft 31 concentrics of electro-motor 22, the left end of the right-hand member of output shaft 31 and input shaft 35 is connected by coaxial integratedly by resinous coupler parts 38.
Shown in Fig. 5～7, for example coupler parts 38 are formed short cylinder shape, and otch 39 is formed on the one side, and otch 40 is formed on the another side.Right-hand member tab 41 engagement of otch 39 and output shaft 31, left end tab 42 engagement of otch 40 and input shaft 35.Width a, the b of otch 39,40 is formed greatlyyer slightly than the width of tab 41,42 respectively, and the relative angle between the length direction of the length direction of otch 39 and otch 40 staggers roughly 90 °.
The main driven wheel (miniature gears) of the little number of teeth but 45 unitary rotation be arranged near the right-hand member of input shaft 35, tween drive shaft 46 is supported on the rear of input shaft 35 abreast, but be arranged on to the quilt unitary rotation big number of teeth master's driven wheel 47 and main driven wheel 45 engagements of tween drive shaft 46 left ends, the auxiliary transmission gear 49 of the big number of teeth that is set at the auxiliary transmission gear 48 of the little number of teeth and the quilt on main driven wheel 47 right sides and is located on the differential gear train 20 meshes, and is set at 2 the transmission helical wheels 50 on the auxiliary transmission gear 49 and is set at axletree 26, transmission helical wheel 51 engagements of 27 the inners.
Quicken 22 startings of control stalk 8 electro-motors by rotating operation, by reduction gear 19 and differential gear train 20 to drive wheel just trailing wheel 4 transmit power, make 1 walking of battery-driven car chair.The concavo-convex influence of ground-surface during because of walking, trailing wheel 4 and actuating device 16 serve as that axle rotates up and down with pivot 29 all, and vibration, impact are absorbed.Utilize back buffer cell not shown in the figures, the up-and-down movement of buffering and recovery trailing wheel 4 and actuating device 16.
On the one hand, see (in power transmission order) in proper order by the power transmission, electromagnetic braking mechanism 21 is contained on the pars intermedia periphery of the input shaft 35 between electro-motor 22 and the reduction gear 19 by axle, electromagnetic braking mechanism 21 comprise the magnet coil 54 that is fixed on the shell 18, equally be fixed on 2 slippers 55 and 56 on the shell 18, be clamped between slipper 55 and 56 and by disk clamp 57 unitary rotation be arranged on brake disc 58 on the input shaft 35.
For example when acceleration control stalk 8 is cut off, make magnet coil 54 by excitation ground control electromagnetic braking mechanism 21.In case to magnet coil 54 excitations, frictionally braking is clamped in the rotation of the brake disc between the slipper 55 and 56 that is adsorbed on the magnet coil 54, thus from input shaft 35 to trailing wheel the rotation of 4 rotatable parts is braked the 1 deceleration-stop of battery-driven car chair.
In addition, chimeric by spline, auxiliary transmission gear 48 is with tween drive shaft 46 unitary rotation and move freely vertically, engaged clutch 60 is arranged between main driven wheel 47 and the auxiliary transmission gear 48, usually utilize spring 61, auxiliary transmission gear 48 is forced into main driven wheel 47 sides, is in the power-transfer clutch bonding state, to the rotation of the main driven wheel 47 of tween drive shaft 46 transmission.
When hand propelled operation battery-driven car chair 1, by handling clutch operating mechanism not shown in the figures, the elastic force of antagonism spring 61 makes the right-hand slip of auxiliary transmission gear 48 to tween drive shaft 46.Thereby the engagement of engaged clutch 60 is disengaged, and it is free that the revolution of trailing wheel 4 becomes, and battery-driven car chair 1 can become hand propelled.
In the actuating device 16 of said structure, watch power transmission order, because electromagnetic braking mechanism 21 is set between electro-motor 22 and the reduction gear 19, braking force during electromagnetic braking mechanism 21 operation only acts on (after the input shaft 35) after the reduction gear 19, does not act on the output shaft 31 of electro-motor 22.
Thereby, can realize that the external diameter of output shaft 31 is attenuated, in the time of electro-motor 22 light weight densifications, can simplify near the structure of the connecting part (the coupler parts 38) of output shaft 31 and reduction gear 19, can increase substantially manufacturing.
In addition, because near the connecting part (the coupler parts 38) of electro-motor 22 (output shaft 31) and reduction gear 19 (input shaft 35) is set at the upstream side of electromagnetic braking mechanism 21 in the power transmission order of being seen, the application force of electromagnetic braking mechanism 21 is not applied to this connecting part, thereby, make this connecting part become simple engaging structure, can make easily.
And, owing to be provided with and the connecting part of the output shaft 31 of electro-motor 22 at the end (left end) of the input shaft 35 of reduction gear 19, the other end (right-hand member) at input shaft 35 is provided with main driven wheel 45, electromagnetic braking mechanism 21 is contained in by axle on the periphery of pars intermedia of input shaft 35, and actuating device 16 integral body can be configured compactness and lightweight.
Because the coupler parts 38 that resin is made are installed in the connecting part of the input shaft 35 of the output shaft 31 of electro-motor 22 and reduction gear 19, can relax the collision impact of output shaft 31 and input shaft 35, can reduce the revolution noise of electro-motor 22.
Because width a, the b of the otch 39,40 of coupler parts 38 are formed to such an extent that be a bit larger tham the width of the tab 41,42 of output shaft 31 and input shaft 35, the engagement of the engagement of otch 39 and tab 41 (output shaft 31) and otch 40 and tab 42 (output shaft 35) can be along diameter of axle direction some distances that relatively move.
And, because the relative angle between the length direction of otch 39 and the length direction of otch 40 is roughly 90 °, even occur the skew of axle core between input shaft 31 and the output shaft 35, relatively move along the face direction with respect to tab 41,42 by clutch components 38, the skew of described axle core is absorbed.Thereby, when reducing the noise that causes by the skew of described axle core, can reduce relative positional accuracy between electro-motor 22 and the reduction gear arrangement 19, the manufacturing of actuating device 16 and assembling become easily, can improve manufacturing.
As mentioned above,, when making whole lightweight of electro-motor and actuating device and compact conformation, manufacturing is improved, can reduce the vibration of electro-motor and rotate noise if adopt elec. vehicle structure according to the invention.
Claims (4)
1. elec. vehicle actuating device, utilize reduction gear that the power of electro-motor is transmitted to drive wheel, also comprise braking electromagnetic braking mechanism, it is characterized in that, see in proper order by the power transmission, above-mentioned electromagnetic braking mechanism is arranged between above-mentioned electro-motor and the above-mentioned reduction gear, the connecting part between above-mentioned electro-motor and the above-mentioned reduction gear is arranged on the upstream side of above-mentioned electromagnetic braking mechanism, the coupler parts that resin is made are installed on the above-mentioned connecting part.
2. elec. vehicle actuating device according to claim 1, it is characterized in that: at an end setting of the input shaft of reduction gear and the connecting part of electro-motor output shaft, main driven wheel is arranged on the other end of this input shaft, the electromagnetic braking mechanism shaft is contained on the input shaft pars intermedia periphery.
3. as elec. vehicle actuating device as described in the claim 2, it is characterized in that: with the reduction gear setting in the enclosure, above-mentioned electro-motor props up reduction gear input shaft axle forefront in the enclosure and is fixed on the outside of shell with the output shaft concentric of electro-motor mode arranged side by side to utilize bearing.
4. as elec. vehicle actuating device as described in the claim 3, it is characterized in that: the input shaft engagement that makes the output shaft and the reduction gear of above-mentioned coupler parts and electro-motor, and described engagement can be relatively moved along diameter of axle direction, in input shaft side and output shaft side, its ingear direction that relatively moves staggers roughly 90 °.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19415/2003 | 2003-01-28 | ||
| JP19415/03 | 2003-01-28 | ||
| JP2003019415A JP2004236386A (en) | 2003-01-28 | 2003-01-28 | Driver of motor operated vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1519148A CN1519148A (en) | 2004-08-11 |
| CN1290731C true CN1290731C (en) | 2006-12-20 |
Family
ID=32949276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100078248A Expired - Fee Related CN1290731C (en) | 2003-01-28 | 2004-01-21 | Driving gear of electric vehicle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2004236386A (en) |
| CN (1) | CN1290731C (en) |
| TW (1) | TWI257861B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452530C (en) * | 2005-05-16 | 2009-01-14 | 比亚迪股份有限公司 | Temperature control system and method for power battery pack of electric vehicle |
| JP4712465B2 (en) * | 2005-07-20 | 2011-06-29 | ヤマハ発動機株式会社 | Rotating electric machine and electric wheelchair |
| JP4993883B2 (en) * | 2005-07-20 | 2012-08-08 | ヤマハ発動機株式会社 | Rotating electric machine and electric wheelchair |
| JP4726564B2 (en) * | 2005-07-20 | 2011-07-20 | ヤマハ発動機株式会社 | Rotating electric machine and electric wheelchair |
| JP5356087B2 (en) * | 2009-03-27 | 2013-12-04 | 本田技研工業株式会社 | Electric vehicle |
| CN102582445A (en) * | 2012-04-10 | 2012-07-18 | 上海中科深江电动车辆有限公司 | Electromagnetic mechanism for parking electric drive automobile |
| JP2016222183A (en) * | 2015-06-02 | 2016-12-28 | ヤマハ発動機株式会社 | Saddle-riding type electric vehicle |
| CN206277947U (en) * | 2016-09-28 | 2017-06-27 | 精进电动科技股份有限公司 | A kind of vehicle electrical drive assembly |
| JP6907521B2 (en) * | 2016-12-13 | 2021-07-21 | スズキ株式会社 | Drive control device for electric wheelchairs |
| JP7103165B2 (en) | 2018-11-01 | 2022-07-20 | トヨタ自動車株式会社 | Electric vehicle |
-
2003
- 2003-01-28 JP JP2003019415A patent/JP2004236386A/en active Pending
-
2004
- 2004-01-20 TW TW093101653A patent/TWI257861B/en not_active IP Right Cessation
- 2004-01-21 CN CNB2004100078248A patent/CN1290731C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TWI257861B (en) | 2006-07-11 |
| CN1519148A (en) | 2004-08-11 |
| JP2004236386A (en) | 2004-08-19 |
| TW200416024A (en) | 2004-09-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061220 Termination date: 20120121 |