CN1765346A - Drive device for electrically movable vehicles and electric wheelchair having same - Google Patents
Drive device for electrically movable vehicles and electric wheelchair having same Download PDFInfo
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- CN1765346A CN1765346A CNA2005101142424A CN200510114242A CN1765346A CN 1765346 A CN1765346 A CN 1765346A CN A2005101142424 A CNA2005101142424 A CN A2005101142424A CN 200510114242 A CN200510114242 A CN 200510114242A CN 1765346 A CN1765346 A CN 1765346A
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Abstract
The invention provides a drive device for electric vehicles which is small-sized, improved in heat radiating characteristics and adapted for use with a drive wheel of reduced diameter, and an electric wheelchair comprising the drive device. The drive device is provided on the inner periphery of each of left and right drive wheels 80, 80 of the electric vehicle and comprises a casing 30 supported at one end thereof by an axle 22 on the electric vehicle, a motor 40 housed in the casing 30 and having a rotating shaft 43 aligned with the axle 22, and a housing 50 rotatably fitted around the casing 30 and rotatable by the rotation of the motor 40. The drive wheel 80 is provided around the outer periphery of the housing 50 and rotatable therewith.
Description
Technical field
The present invention relates to the driving device that electric vehicle adopted of electric wheelchair etc., more particularly, the present invention relates to following electric vehicles driving device, this electric vehicles driving device has driving wheel in periphery, is supported on the vehicle with cantilevered fashion.
Background technology
In the electric vehicle of electric wheelchair etc., comprise have by motor drive respectively the driving device of left and right sidesing driving wheel type (such as, JP speciallys permit document No. 3432977, the flat 9-296829 document of TOHKEMY, TOHKEMY 2000-70309 document).
Specially permit in the driving device of No. 3432977 document record at JP, pars intermedia at driving wheel, cover the peristome of the axle sleeve that rotatably is installed on the hollow on the axletree by metal lid, on the face of the opposite side in lid with axle sleeve, admit the case of driving wheel with motor and electromagnetic brake in the fixed-site of axletree skew relatively, admitting in axle sleeve has reduction gearing and electric power control part.
Lid is made of the higher metal of heat conductivity, and the exothermal effect of motor and electric power control part is improved.In addition, be formed with following structures, wherein, be arranged at relative axletree by installation site with the electric power control part, from the position that motor leaves, suppress thus the electric power control part overheated (such as, JP speciallys permit communique No. 3432977).
In JP speciallys permit No. 3432977 described driving device of document, because motor and electromagnetic brake are arranged at a side opposite with axle sleeve according to the mode of the lid of clamping cooling usefulness, and be positioned at the position of relative axletree skew again, make the diameter of driving device increase (in the scope of 30～40cm) so have to, in addition, the wheel diameter that is arranged at the periphery of driving device also increases.If wheel diameter increases, then be difficult to carry out the action of moving to bed etc. from wheelchair, in addition, if wheel diameter increases, because the integral body of wheelchair itself also increases, weight increases, so be not easy to carry out action such as indoor mobile, little revolution.
In the flat 9-296829 document of TOHKEMY, the described driving device of TOHKEMY 2000-70309 document, has electromagnetic brake, the state that this electromagnetic brake does not move at motor, the rotation of braking, maintenance driving shaft, and have the clutch that interrupts brake force, retentivity.This electromagnetic brake is arranged at a side opposite with driving wheel with respect to motor, and clutch is arranged between motor and the driving wheel.
Therefore, if make clutch on-off, then motor and driving wheel disconnect from power, and the brake force of motor does not act on the driving wheel.Thus, such as locating at descending etc., make the state of electromagnetic brake action, if the user mistake is cut off clutch, the effective brake force that then has dynamic brake etc. does not act on the driving wheel, on one side electric vehicle quickens the probability that an edge descending is slid down.
Summary of the invention
The 1st purpose of the present invention is to provide can seek reducing of device overall dimensions and reducing of driving wheel diameter, electric vehicles driving device that braking ability improves and the electric wheelchair with this driving device.
In addition, the 2nd purpose of the present invention is to be provided at the state that cuts off clutch, and electromagnetic brake is not to the driving wheel effect, and the brake force of motor is to the electric vehicles driving device and the electric wheelchair with this driving device of driving wheel effect.
In order to solve above-mentioned the 1st problem, the driving device of electric vehicles of the present invention relates to the driving device in the interior week of the left and right sidesing driving wheel that is arranged at electric vehicle, and this driving device comprises, is supported on case on the electric vehicle by axletree with cantilevered fashion; Be received in the inside of this case, have motor with the co-axial rotating shaft of above-mentioned axletree; Housing, this housing are rotatably chimeric with the periphery of above-mentioned case, accept the rotation of motor and rotate, but driving wheel is arranged on the periphery of housing in the mode of one rotation.
For driving device of the present invention, because the setting of the rotating shaft coaxle ground of the axletree of supporting driving device and motor,, can seek to be installed on the reducing of diameter of driving wheel of the periphery of driving device so can reduce the overall dimensions of driving device itself.In addition,,, can pass through co-axial axletree, under unswerving situation, bear counter-force so can prevent departing from of counter-force because the center of rotation of rotating shaft and driving wheel is identical.
In addition, in order to solve the 1st problem, electric vehicles driving device of the present invention relates to the driving device in the interior week of the left and right sidesing driving wheel that is arranged at electric vehicle, it is characterized in that this driving device comprises case, this case is supported on the electric vehicle with cantilevered fashion by axletree; Be received in the inside of above-mentioned case, have motor with the co-axial rotating shaft of axletree; Electromagnetic brake, this electromagnetic brake is received in the inside of case, is arranged at than the more close axletree side of motor, and motor is braked; Housing, this housing are rotatably chimeric with the periphery of case, accept the rotation of motor and rotate, but driving wheel is arranged on the periphery of housing in the mode of one rotation.
For driving device of the present invention, because the setting of the rotating shaft coaxle ground of the axletree of supporting driving device and motor,, can seek to be installed on the reducing of diameter of driving wheel of the periphery of driving device so can reduce the overall dimensions of driving device itself.In addition,,, can pass through co-axial axletree, under unswerving situation, bear counter-force so can prevent departing from of counter-force because the center of rotation of rotating shaft and driving wheel is identical.
By electromagnetic brake being arranged at than more close axletree one side of motor, can shorten the wiring of electromagnetic brake, can seek the simplification of internal structure, realize the raising of maintainability.
In order to solve above-mentioned the 2nd problem, the driving device of electric vehicles of the present invention comprises:
By axletree, be supported on case on the electric vehicle with cantilevered fashion;
Be received in the inside of this case, have motor with the co-axial rotating shaft of axletree;
Housing, this housing are rotatably chimeric with the periphery of case, are connected by the front end of reducing gear with the rotating shaft of motor;
Be arranged at the driving wheel of the periphery of above-mentioned shell;
Base end side at the rotating shaft of motor carries out arresting electromagnetic brake to the rotation of rotating shaft;
Between the rotating shaft and electromagnetic brake of motor, has the clutch that makes rotating shaft and electromagnetic brake clutch.
In driving device of the present invention,,, thus,, still can make the driving wheel rotation that is connected with motor even under the state of electromagnetic brake action with the rotating shaft clutch of electromagnetic brake and motor by clutch.At this moment, because the rotating shaft and the driving wheel of motor do not disconnect from the power aspect, even so clutch is being cut off, electromagnetic brake is not under the state to the motor effect, the brake force of the dynamic brake power of motor etc. still acts on the driving wheel, thus, driving wheel can freely not rotate.
Therefore, locate at descending etc., when stopping by electromagnetic brake, even under the situation of cutting off clutch, the brake force of the dynamic brake power by motor etc., electric vehicle can not quicken and surpass to a certain degree, can improve safety.
Description of drawings
Fig. 1 is the axonometric chart of the electric wheelchair of the 1st embodiment of the present invention;
Fig. 2 is the driving device of the 1st embodiment of the present invention and the cutaway view of driving wheel;
Fig. 3 is for watching the side view of Fig. 2 from the arrow A direction;
Fig. 4 is for watching the side view of Fig. 2 from the direction opposite with arrow A;
Fig. 5 is the axonometric chart of the electric wheelchair of the 2nd embodiment of the present invention;
Fig. 6 is the cutaway view of driving device of the present invention and driving wheel;
Fig. 7 is the amplification view of clutch periphery of the driving device of the 2nd embodiment of the present invention;
Fig. 8 is for representing the cutaway view of activity template and interior actuator in the taking-up mode;
Fig. 9 is the cutaway view along the line A-A ' among Fig. 8;
Figure 10 is for representing the cutaway view of the state that activity template is connected with interior actuator;
Figure 11 is the cutaway view of the state of expression activity template and the cut-out of interior actuator.
The specific embodiment
(the 1st embodiment)
In following description, be example with employed electric wheelchairs 10 of the bad people who makes such as aged person or legs and feet, electric vehicle is described, still, the present invention also can be used for the electric vehicle of golf with car etc. or small-sized vehicle etc.
Fig. 1 is arranged at the axonometric chart of the electric wheelchair 10 of left and right sidesing driving wheel 80,80 respectively for driving device 20 of the present invention.This electric wheelchair 10 has the seat portion 11 and backrest 12 that user is sat down, and on the support 13 that extends, the driving device 20,20 and the driving wheel 80,80 of pair of right and left is being installed from seat portion 11 downwards.In addition, in the place ahead of this driving wheel 80,80, be supported with the auxiliary wheel 14,14 of its diameter less than driving wheel 80,80.
The bottom of present portion 11 is provided with battery, electric power control part, other the control chamber 15 of controlling organization etc., and the front lower of present portion 11 forms pedal 16,16, about present portion 11, forms handrail 17,17.In addition, the operated operator 18 of user is arranged at the sidepiece of one of them handrail 17, at the rear, top of backrest 12, is extended with the handle 19,19 that the nursing staff uses.
For operator 18, can provide the example of lever-type, can carry out the change of the speed of a motor vehicle or the operation of rotation.By stick being leaned forward or hypsokinesis, can make electric wheelchair 10 advance, retreat.In addition, tilt, can change the rotary speed of left and right sidesing driving wheel 80,80, make electric wheelchair 10 left rotation and right rotation by making stick.
Fig. 2 is driving device 20 of the present invention and the cutaway view that is installed on the left side driving wheel 80 on the driving device 20.In addition, Fig. 3 is the side view that the arrow A direction from Fig. 2 is watched driving device 20, the side view of Fig. 4 for watching the other way around.
Best, case 30 and housing 50 be by the higher metal material of heat conductivity, such as, aluminium alloy forms, so that improve exothermic character.
By axletree 22, the case 30 that is supported on the support 13 with cantilevered fashion can be the structure that is divided into 3 parts vertically.Be positioned at of end plate 32 sealings of the inner shell 31 of support 13 sides, other end opening by the front end of dead axle 22.Axletree 22 can be by installing with the mode of inner shell 31 interference fits.
One end of mesochite 35 is fixed on the inner shell 31.Inner peripheral surface has towards the rotating shaft 43 of motor 40 and the annular plate 36 that extends, at the inner peripheral of annular plate 36, has the rotatably bearing 36a of supporting rotating shaft 43.On annular plate 36, in inner shell 31 sides electromagnetic brake 60 is installed, be fixed with the stator 46 of motor 40 at inner face.
One end of shell 37 is fixed on the mesochite 35, surrounds the periphery of said stator 46.The other end at shell 37 is provided with cyclic end plate 38, is provided with the rotatably bearing 38a of the rotating shaft 43 of supporting motor 40 at the inner peripheral of end plate 38.At the outer surface of end plate 38, reduction gearing 48 is installed.
The through hole 32a of the end plate 32 of being located at inner shell 31 is passed in the wiring 24 that stator 46 and electromagnetic brake 60 are switched on, and the control chamber 15 to the bottom surface of seat portion 11 extends.
On the end plate 32 of inner shell 31, beyond the wiring 24 through hole 32a that passed, shown in the image pattern 2 like that, form a plurality of fin 34.Fin 34 is realized air cooling by being arranged at the rotation of the blade 52 on the housing 50 described later.
The rotor 42 of motor 40 is made of rotating shaft 43 and laminated metal sheet 44, this rotating shaft 43 according to axletree 22 co-axial modes, be supported on above-mentioned bearing 36a, the 38a, this laminated metal sheet 44 is according to the mode relative with stator 46, and is chimeric with rotating shaft 43.
Bracket side at rotating shaft 43 offers keyway 43a, and this keyway 43a passes the inside of electromagnetic brake 60, engages with the interior actuator 62 of electromagnetic brake 60.Interior actuator 62 engages with brake disc 61.
The other end of rotating shaft 43 and reduction gearing 48 engagements.
Best, electromagnetic brake 60 is arranged at than motor 40 more close axletree 22 1 sides.By electromagnetic brake 60 being arranged at axletree 22 sides, can shorten the wiring 24 of electromagnetic brake 60, can seek the simplification of internal structure, realize the raising of maintainability.
On the other hand, if electromagnetic brake 60 is arranged at than the reduction gearing 48 more close outsides one side, then the wiring 24 of electromagnetic brake 60 has to lead to the outside of reduction gearing 48 or motor 40, and it is complicated that internal structure becomes, cause the overall dimensions of device to increase, maintainability reduces.
For reduction gearing 48, can provide the example of planetary gears.This reduction gearing 48 be supported on shell 37 end plate 38 and and end plate 38 relatively-stationary baffle plates 39 between.Reduction gearing 48 and internal gear 55 engagements, this internal gear 55 are arranged at the inboard of lid 54 of the front end of closure casing 50.
If by the energising to stator 46, rotor 42 rotations then by reduction gearing 48 and internal gear 55, pass to lid 54 with driving force, housing 50 rotations.
The bracket side of housing 50 is supported on the inner shell 31 by bearing 30a, and the opening of the other end is by lid 54 sealings.
In lid 54, as described above, be provided with internal gear 55, this lid 54 is by bearing 39a, rotatably is supported on from the centre of baffle plate 39 and on the prominent axle 39b that establishes.
In the bracket side of housing 50,, be equipped with a plurality of blades 52,52 towards axletree 22. Blade 52,52 is relative with the fin 34,34 of inner shell 31, and by the rotation of housing 50, blade 52,52 is sent air into fin 34,34, as cooling fan.Thus, can not stay in inside, scatter with good efficiency by the heat of generations such as motor 40 or electromagnetic brake 60.
Best, driving wheel 80 is formed at driving device 20 not from the outstanding position of tire 85.In the occasion of present embodiment, spoke 83 is arranged at the front of axle sleeve 82,, with the position of axletree 22 opposite sides, thus, reduces the overhang of driving device 20 from tire 85 that is.
The driving device 20 of said structure is supported on state on the support 13 at axletree 22 with cantilevered fashion, be fixed on the electric wheelchair 10.The occasion of under the situation that this driving device 20 does not does not load and unload from electric wheelchair 10, using, can be by modes such as screw are fastening, driving device 20 is fixed on the support 13, but, in reason with electric wheelchair 10 entrucking carryings etc., the occasion that must take off driving wheel 80 at each driving device 20 also can adopt according to the mode of taking off driving device 20 easily, is the structure of purpose with axial dismounting.Also can as required the parts of the torque counter-force of bearing motor 40 be set.
If user is by operator 18, advancing, retreat or rotating of indication electric wheelchair 10 then switched on to electromagnetic brake 60, brake off, and stator 46 switched on rotor 42 rotations.If rotor 42 rotations, then driving force passes to housing 50 from rotating shaft 43 by reduction gearing 48 and internal gear 55, housing 50 rotations.Thus, be fixed in driving wheel 80,80 rotations on the housing 50, electric wheelchair 10 advances, retreats.In addition, rotation is undertaken by the mode of the rotary speed of change left and right sides driving device 20.
For driving device 20 of the present invention, because the axletree 22 of supporting driving device 20 and the rotating shaft 43 of motor 40 are provided with coaxially, so can reduce the overall dimensions (diameter is below 15cm) of driving device 20 itself, can seek to be installed on the reducing of diameter of the driving wheel 80 on the periphery of driving device 20.In addition,,, can pass through co-axial axletree 22, bear counter-force at unswerving state so can prevent departing from of counter-force because rotating shaft 43 is identical with the center of rotation of driving wheel 80.
In addition, according to driving device 20 of the present invention, because fin 34 is set on case 30, the blade 52,52 of cold sink 34 is set on housing 50, in addition, case 30 and housing 50 are made of the higher material of pyroconductivity, so the heat that is produced by the driving of motor 40 grades does not remain in the inside of driving device 20, and can the good efficiency heat radiation.
In addition, in the above-described embodiments, fin 34 is integrally formed with housing 50, still, both can form by separate part, also can be arranged on the axle sleeve 82 of driving wheel 80.
(the 2nd embodiment)
In the present embodiment, have clutch 70 in driving device 20, this clutch 70 makes rotating shaft 43 and electromagnetic brake 60 clutches.The label identical with the 1st embodiment represented identical parts, suitably omits the description to it.
Fig. 5 is for being arranged at the driving device 20 of the 2nd embodiment of the present invention respectively the axonometric chart of the electric wheelchair 10 of left and right sidesing driving wheel 80,80.At the rear, top of backrest 12, be extended with the handle 19,19 that the care-giver uses.On this handle 19, has the clutch operating portion 77 (will be described later) that the care-giver operates the clutch of clutch 70.
For operator 18, can provide the example of operating rod type, can carry out the change of the speed of a motor vehicle or the operation of rotation.Can make electric wheelchair 10 advance, retreat by action bars being leaned forward or hypsokinesis.In addition, can tilt, change the rotary speed of left and right sidesing driving wheel 80,80, make electric wheelchair 10 left rotation and right rotation by making action bars.
Shown in the image pattern 6 like that, above-mentioned driving device 20 can pass through clutch 70, with the rotating shaft 43 of motor 40, and can arresting mode to be connected electromagnetic brake 60 clutches of the rotating shaft 43 of this motor 40.
Shown in the bracket side image pattern 7 of rotating shaft 43 like that, pass the inside of electromagnetic brake 60, its base end side is by clutch 70, but is connected with the interior actuator 62 of electromagnetic brake 60 in the mode of clutch.
Fig. 7 is the amplification view of the periphery of clutch 70.Shown in this figure, at the cardinal extremity of rotating shaft 43, form axle spline 43a, the activity template 71 of clutch 70 is embedded in the cardinal extremity periphery of rotating shaft 43.
For activity template 71, can provide to carbon steels for machine structural purposes (such as, S45C) wait the example of the material adjust and to form.At the mate of rotating shaft 43 and activity template 71, the coating solid lubricant is so that improve sliding and abrasion performance.Its reason is: if lubricant adopts the mobile lubricant of oil or grease etc., then when turning motor 40, mobile lubricant disperses, and the braking ability of electromagnetic brake 60 is reduced.
In addition, between the annular plate 36 of activity template 71 and mesochite 35, the biasing mechanism 75 that is formed by coil spring makes activity template 71 biasings along the direction of leaving from rotating shaft 43.
In activity template 71, but it is chimeric to be arranged at the interior actuator 62 of mode that the engaged clutch 74 of the periphery of base end side throws off with buckle and electromagnetic brake 60.Fig. 8 and Fig. 9 are the figure of the fastening state of expression activity template 71 and interior actuator 62.Shown in this figure, in the inboard of interior actuator 62, form the engagement clutch part 62a that engages with activity template 71, at its outer circumferential side, be provided with the spline 62b that can be integral rotation with the brake disc 61 of electromagnetic brake 60 described later and engage.
Best, also at the mate coating solid lubricant of interior actuator 62 and activity template 71, so that improve sliding and abrasion performance.The purpose of doing like this is to prevent the reduction of the braking ability of the electromagnetic brake 60 that caused by dispersing of lubricant.
Shown in interior actuator 62 image patterns 9 like that, by bearing 62d, rotatably be embedded in the recess 22a of the front end that is formed at axletree 22.At the center of interior actuator 62, offer the bar hole 62c that push rod 76 that clutch 70 is operated slidably passes.
The spline 62b of the periphery of actuator 62 engages with the brake disc 61 of electromagnetic brake 60 in above-mentioned.In addition, in the interior week of brake disc 61, the bonded keyway 61a of spline 62b of the periphery of formation and interior actuator 62.
If user and care-giver operate clutch operating portion 77, tense wire rope 77a then, pushing mechanism 78 is pressed into rotating shaft 43 sides with push rod 76.Thus, shown in the image pattern 10 like that, by biasing mechanism 75, the activity template 71 that will be in interior actuator 62 fastening states is pressed into rotating shaft 43 sides, shown in the image pattern 11 like that, the engaging of actuator 62 and activity template 71 in removing.Thus, no matter electromagnetic brake 60 is in which kind of state of action, non-action, and this electromagnetic brake 60 is all to driving wheel 80 effects.
In addition, in the present invention, because the rotating shaft 43 of motor 40 is connected with driving wheel 80 all the time, so at the state of switching on motor 40, even under the state that electromagnetic brake 60 does not act on driving wheel 80, motor 40 is still as electromotor, DC current flows to the regenerative braking of control chamber 15, that is, the dynamic brake masterpiece of motor 40 acts on the driving wheel 80 for load, thus, driving wheel 80 can not rotate freely.Therefore, by the operation of clutch 70, even under the situation of the state that electromagnetic brake 60 does not act on, driving wheel 80 changes at certain load resistance condition backspin, even locate still not quicken at descending etc.
At this moment, the controlling organization of above-mentioned control chamber 15 is judged the variation of speed by the rotary speed of illustrated velometer detection driving wheel 80.As the result of its judgement, when judgement speed increased, the controlling organization of control chamber 15 further increased the aforesaid additional resistance of motor 40 with the short-circuit of stator 46, applies short-circuit braking, improved brake force.Even like this, the controlling organization of control chamber 15 is according to the occasion that increases in the speed of judging above-mentioned velometer, along the mode drive motor 40 of the direction rotation opposite with direction of rotation, the braking of reversing.Like this, also can divide to apply braking according to corresponding to speed, the mode that underspeeds is moved multistagely.
At the state of electromagnetic brake 60 effects, clutch 70 is operated, cut off electromagnetic brake 60, thus, remove the brake force of electromagnetic brake 60, thus, even when care-giver's hand push electric wheelchair 10, still can use clutch 70.
If state (Figure 11) from electromagnetic brake 60 and rotating shaft 43 cut-outs, operation by steel wire rope 77a retracts push rod 76, the bias force by biasing mechanism 75 then, shown in the image pattern 10 like that, activity template 71 is pressed into interior actuator 62 sides, and activity template 71 engages with interior actuator 62 once more.State of actuator 62 and activity template 71 engagings in this, if make electromagnetic brake 60 actions, then electromagnetic brake 60 effects are braked the rotation of rotating shaft 43, stop the rotation of driving wheel 80.
The driving device 20 of said structure is supported on state on the support 13 at axletree 22 with cantilevered fashion, be fixed on the electric wheelchair 10.Do not load and unload and the occasion of use at driving device 20 from electric wheelchair 10, can be by modes such as bolted, driving device 20 is fixed on the support 13, but, in reason, must take off the occasion of driving wheel 80 at each driving device 20 with electric wheelchair 10 entrucking carryings etc., also can adopt according to the mode of taking off driving device 20 easily, be the structure of purpose with axial dismounting.Also can as required the parts of the torque counter-force of bearing motor 40 be set.
If user advances, retreats or rotate by operator 18 indication electric wheelchairs 10, then electromagnetic brake 60 is switched on, brake off, and to stator 46 energisings, rotor 42 rotations.If rotor 42 rotations then from rotating shaft 43, by reducing gear 48 and internal gear 55, pass to housing 50 with driving force, housing 50 rotations.Thus, be fixed in driving wheel 80,80 rotations on the housing 50, electric wheelchair 10 advances, retreats.In addition, this rotation is undertaken by the mode of the rotary speed of the driving device 20 about changing.
On the other hand, if from electromagnetic brake 60 effective states, clutch operating portion 77 is operated, by clutch 70, the rotating shaft 43 and the electromagnetic brake 60 of motor 40 are cut off, then on driving wheel 80, do not act on the brake force of electromagnetic brake 60, and the dynamic brake power of effect motor 40.Therefore, locate,, under the situation that electromagnetic brake 60 is cut off, still can not accelerate to more than the certain speed even because the maloperation of clutch operating portion 77 at descending etc.In addition, owing to can cut off electromagnetic brake 60 by clutch operating portion 77, so when the care-giver holds electric wheelchair 10, needn't be to electric wheelchair 10 energized.
In addition, in Fig. 5, clutch operating portion 77,77 be arranged at the care-giver operated about handle 19,19 on, still, also can according to only one setting operation portion 77 on hand, just can the mode that two clutches 70,70 are operated be provided with.In addition, the structure of operating portion 77 is not limited to adopt the structure of push rod 76 or steel wire rope 77a.
In addition, operating portion 77 also can constitute according to the exercisable mode of the user of electric vehicle.
If be the expert of this area, then understand, can in the scope that does not break away from essence of the present invention, carry out distortion of the present invention and change, in the scope of the present invention that the request scope that its kind distortion is included in accompanying Claim is put down in writing.
Claims (15)
1. the driving device of an electric vehicles, the driving device of this electric vehicles is arranged at the interior week of the left and right sidesing driving wheel of electric vehicle, it is characterized in that this driving device comprises:
By axletree, be supported on case on the electric vehicle with cantilevered fashion;
Be received in the inside of this case, have motor with the co-axial rotating shaft of axletree;
Housing, this housing are rotatably chimeric with the periphery of case, accept the rotation of motor and rotate;
But driving wheel is arranged on the periphery of housing in the mode of one rotation.
2. the driving device of electric vehicles according to claim 1 is characterized in that driving wheel is arranged near the end of an opposite side with axletree.
3. the driving device of electric vehicles according to claim 1 is characterized in that having fin in the axletree side of case, and the position relative with fin in shell or driving wheel is provided with fin is carried out refrigerative blade.
4. electric wheelchair, this electric wheelchair about have the described electric vehicles driving device of claim 1.
5. driving device, this driving device is arranged at the interior week of the left and right sidesing driving wheel of electric vehicle, it is characterized in that this driving device comprises:
Case, this case is supported on the electric vehicle with cantilevered fashion by axletree;
Be received in the inside of above-mentioned case, have motor with the co-axial rotating shaft of axletree;
Electromagnetic brake, this electromagnetic brake is received in the inside of case, is arranged at than the more close axletree side of motor, and motor is braked;
Housing, this housing are rotatably chimeric with the periphery of case, accept the rotation of motor and rotate;
But driving wheel is arranged on the periphery of housing in the mode of one rotation.
6. driving device according to claim 5 is characterized in that above-mentioned electromagnetic brake directly brakes the rotating shaft of motor.
7. electric wheelchair, this electric wheelchair about have the driving device of the described electric vehicles of claim 5.
8. the driving device of an electric vehicles, the driving device of this electric vehicles comprises:
Be supported on case on the electric vehicle by axletree with cantilevered fashion;
Be received in the inside of this case, have motor with the co-axial rotating shaft of axletree;
Housing, this housing are rotatably chimeric with the periphery of case, are connected by the front end of reducing gear with the rotating shaft of motor;
Be arranged at the driving wheel of the periphery of above-mentioned housing;
Base end side at the rotating shaft of motor carries out arresting electromagnetic brake to the rotation of rotating shaft;
It is characterized in that between the rotating shaft and electromagnetic brake of motor, having the clutch that makes rotating shaft and electromagnetic brake clutch.
9. driving device according to claim 8, it is characterized in that clutch comprises activity template, this activity template is connected with electromagnetic brake with the mode that can the carry out transmission of power rotating shaft with motor, this activity template is being provided with in the mode that direction of principal axis slides, it is by biasing mechanism, according to rotating shaft and electromagnetic brake ways of connecting are put to the axletree lateral deviation.
10. electric vehicles driving device according to claim 9, but it is characterized in that activity template with one rotation, and slidably the rotating shaft of mode and motor is chimeric.
11. driving device according to claim 10 is characterized in that activity template has the tube portion chimeric with rotating shaft, forms the hole spline at the inner face of this one, forms a spline that engages with above-mentioned hole spline at the cardinal extremity of the rotating shaft of motor.
12. driving device according to claim 9 is characterized in that the periphery of activity template can be thrown off with the electromagnetic brake buckle.
13. driving device according to claim 9, it is characterized in that on axletree, offer through hole vertically, in this through hole, be provided with push rod in the mode that can slide vertically, by push rod is slided vertically, the bias force of the front end opposing biasing mechanism of push rod slides activity template along the direction that is connected of removing rotating shaft and shell.
14. driving device according to claim 1 is characterized in that cutting off clutch, the brake force of electromagnetic brake does not act on the state on the driving wheel, can be corresponding to the rotary speed of motor, and change from motor and act on brake force on the driving wheel.
15. an electric wheelchair, this electric wheelchair about have the described electric vehicles driving device of claim 9.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004309524A JP4544963B2 (en) | 2004-10-25 | 2004-10-25 | Electric vehicle drive device and electric wheelchair provided with the same |
| JP2004309528 | 2004-10-25 | ||
| JP2004309524 | 2004-10-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1765346A true CN1765346A (en) | 2006-05-03 |
| CN100586411C CN100586411C (en) | 2010-02-03 |
Family
ID=36534615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510114242A Expired - Fee Related CN100586411C (en) | 2004-10-25 | 2005-10-21 | Drive device for electrically movable vehicles and electric wheelchair having same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4544963B2 (en) |
| CN (1) | CN100586411C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023202A (en) * | 2011-09-27 | 2013-04-03 | Asco电力技术公司 | Clutch structure |
| CN103312084A (en) * | 2013-06-03 | 2013-09-18 | 常熟市平方轮椅有限公司 | Direct-current brushless driving wheel structure of electric wheelchair |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7870917B2 (en) | 2004-10-25 | 2011-01-18 | Sanyo Electric Co., Ltd. | Drive device for electrically movable vehicles and electric wheelchair having same |
| US7686145B2 (en) | 2005-09-21 | 2010-03-30 | Sanyo Electric Co., Ltd. | Drive device for electrically movable vehicles and electric wheelchair having same |
| DE102013103107A1 (en) * | 2013-03-26 | 2014-10-16 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Transmission for an electrically driven axle of a motor vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2071255U (en) * | 1990-04-24 | 1991-02-13 | 山东农业大学 | Automatic electric controlling device for cooling fan of vehicles |
| DE4420877C2 (en) * | 1994-06-15 | 2001-09-20 | Invacare Deutschland Gmbh | wheelchair |
| JP3432977B2 (en) * | 1995-10-27 | 2003-08-04 | ヤマハ発動機株式会社 | Electric drive device for vehicle |
| JP3576663B2 (en) * | 1995-11-01 | 2004-10-13 | 本田技研工業株式会社 | Electric wheelchair |
| CN2241797Y (en) * | 1996-03-15 | 1996-12-04 | 陈水盛 | Electromagnetic clutch and brake apparatus for engine |
| JPH09308651A (en) * | 1996-05-21 | 1997-12-02 | Daido Steel Co Ltd | Motor-driven wheelchair |
| JP2000014714A (en) * | 1998-07-01 | 2000-01-18 | Sony Corp | Moving apparatus |
| JP2002085474A (en) * | 2000-09-12 | 2002-03-26 | Nainippon System:Kk | Electrically driven wheel for wheelchair |
| JP2002349493A (en) * | 2001-05-24 | 2002-12-04 | Asmo Co Ltd | Brushless fan motor |
| US7686145B2 (en) * | 2005-09-21 | 2010-03-30 | Sanyo Electric Co., Ltd. | Drive device for electrically movable vehicles and electric wheelchair having same |
-
2004
- 2004-10-25 JP JP2004309524A patent/JP4544963B2/en not_active Expired - Fee Related
-
2005
- 2005-10-21 CN CN200510114242A patent/CN100586411C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103023202A (en) * | 2011-09-27 | 2013-04-03 | Asco电力技术公司 | Clutch structure |
| CN103023202B (en) * | 2011-09-27 | 2015-08-05 | Asco电力技术公司 | A kind of clutch structure |
| CN103312084A (en) * | 2013-06-03 | 2013-09-18 | 常熟市平方轮椅有限公司 | Direct-current brushless driving wheel structure of electric wheelchair |
| CN103312084B (en) * | 2013-06-03 | 2015-05-20 | 常熟市平方轮椅有限公司 | Direct-current brushless driving wheel structure of electric wheelchair |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4544963B2 (en) | 2010-09-15 |
| CN100586411C (en) | 2010-02-03 |
| JP2006116185A (en) | 2006-05-11 |
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