CN102729798A

CN102729798A - Fixing structure of motor shaft for electric vehicle

Info

Publication number: CN102729798A
Application number: CN2011100834315A
Authority: CN
Inventors: 曹奇峰; 周越
Original assignee: Honda Motor Co Ltd
Current assignee: Honda Motor Co Ltd
Priority date: 2011-03-29
Filing date: 2011-03-29
Publication date: 2012-10-17
Anticipated expiration: 2031-03-29
Also published as: JP5882766B2; KR101291478B1; TWI461315B; JP2012206710A; IN2012DE00889A; KR20120112115A; TW201302510A; CN102729798B

Abstract

The invention provides a fixing structure of a motor shaft for an electric vehicle, and the motor shaft can be firmly fixed on the electric vehicle by the fixing structure. According to the fixing structure of the motor shaft (50) for the electric vehicle, fastening positions (118L, 118R) which are used for fastening the motor shaft on a side of the vehicle by using fixing components (140L, 140R) are provided at both ends of the motor shaft; a pair of fastening planes are formed on the fastening positions; support portions of the motor shaft are provided with a clamping opening (204) which is matched with a shape of the fastening positions, limits rotation of the motor shaft and opens towards a back of the vehicle; the fixing structure of the motor shaft for the electric vehicle has stopper mechanisms (54L, 54R) which are formed for preventing the fastening positions from disengaging from the clamping opening; the stopper mechanisms are arranged between the fixing components and the support portions of the motor shaft, and the stopper mechanisms comprise a through portion used for insertion of the fastening positions and a first clamping portion (212) clamped with a first embedded hole (210) which is arranged at the support portions of the motor shaft.

Description

The fixed sturcture of the motor reel of electric vehicles

Technical field

The present invention relates to be used for motor reel is fixed on the fixed sturcture of the motor reel of the electric vehicles on the vehicle body.

Background technology

As the method that wheel hub electric motor is fixed in the swing arm; Open shown in the clear 53-136736 communique such in fact like Japan; Record and two-sided chamfered edge (Japanese: two faces are got り) processing portion be set in the end of motor reel and the corresponding opening groove be set in swing arm, with the rotational force of opposing motor reel with the fixed supported reliably method of motor reel.

Yet; This method is inserted motor reel in the open slot of swing arm after; The clamp nut in the end of motor reel; Thus that motor reel and swing arm is fastening, therefore also exist driving counter-force because of electrical motor to weaken the possibility of fastening force of the nut of fastening motor reel, expectation is considered so that motor reel does not come off from swing arm.

Summary of the invention

Therefore, the present invention proposes in view of above-mentioned existing problem, and its purpose is to provide a kind of fixed sturcture that is used for more reliably motor reel being fixed on the motor reel of the electric vehicles on the vehicle body.

In order to reach above-mentioned purpose; First scheme of the present invention provides a kind of fixed sturcture of motor reel 50 of electric vehicles; In the elec. vehicle; The drive motor 58 that in wheel 56, possesses the wheel hub type of the usefulness of going; Two ends as the motor reel 50 of the axletree of said drive motor 58 can not be rotatably fixed on the vehicle body by

axletree support

18L, 18R, 46L, 46R; Be fixed with connecting element 110 on the said motor reel 50 in said wheel 56; Be fixed with revolving part 112 in the inboard of said wheel 56; The fixed sturcture of the motor reel 50 of said electric vehicles is characterised in that; Be provided with at the two ends of said motor reel 50 and be used for carrying out fastening

fastening position

118L, 118R to said body side through

stationary member

140L, 140R; This

fastening position

118L, 118R be last to be formed with a pair of fastening 120L, 122L, 120R, the 122R parallel with the fore-and-aft direction of vehicle body, and said

axletree support

18L, 18R, 46L, 46R are provided with snap openings 204, and this snap openings 204 limits the rotation of said motor reel 50 with the form fit of said

fastening position

118L, 118R; And open towards said vehicle body rear; The fixed sturcture of the motor reel 50 of said electric vehicles possesses in order to prevent that said

fastening position

118L, 118R break away from and the stopper mechanism 54L, the 54R that form from said snap openings 204, and this

stopper mechanism

54L, 54R are arranged between said

stationary member

140L, 140R and said

axletree support

18L, 18R, 46L, the 46R, comprise the breakthrough part 208 that supplies said

fastening position

118L, 118R insertion, be arranged on first engagement section 212 that said

axletree support

18L, 18R, 46L, the first last embedded hole 210 of 46R engage.

Alternative plan of the present invention is the basis with the fixed sturcture of the motor reel 50 of the described electric vehicles of first scheme; It is characterized in that; Be provided with the

second engagement section

222a, 222b in the rear end of said

stopper mechanism

54L, 54R, this

second engagement section

222a, 222b through be arranged on said

axletree support

18L, 18R, 46L, the last second embedded hole 220a, the 220b of 46R and engage the position of carrying out said

stopper mechanism

54L, 54R and said

axletree support

18L, 18R, 46L, 46R and align.

Third party's case of the present invention is the basis with the fixed sturcture of the motor reel 50 of the described electric vehicles of first scheme; It is characterized in that, be provided with along the extended extension 224a of said motor reel 50 directions, 224b at the said breakthrough part 208 of said

stopper mechanism

54L, 54R.

Cubic case of the present invention is the basis with the fixed sturcture of the motor reel 50 of the described electric vehicles of third party's case; It is characterized in that, be formed with and said extension 224a, chimeric recess 228a, the 228b of 224b in the said snap openings 204 of said

axletree support

18L, 18R, 46L, 46R.

The 5th scheme of the present invention is the basis with the fixed sturcture of the motor reel 50 of the described electric vehicles of first scheme; It is characterized in that; Said motor reel 50 is a solid axle; Said motor reel 50 is provided with through hole 144, and the distribution 148 that this through hole 144 feeds to said connecting element 110 extensions passes through.

The 6th scheme of the present invention is the basis with the fixed sturcture of the motor reel 50 of the described electric vehicles of the 5th scheme; It is characterized in that; The distribution outlet 152 of said through hole 144 is arranged on the upside of the vehicle body above-below direction of said motor reel 50, and the distribution inlet 150 of said through hole 144 is arranged on the downside of the vehicle body above-below direction of said motor reel 50.

The 7th scheme of the present invention is the basis with the fixed sturcture of the motor reel 50 of the described electric vehicles of the 6th scheme; It is characterized in that; Among said a pair of fastening the 120L of said

fastening position

118L, 118R, 122L, 120R, the 122R, on said fastening an of side of the distribution outlet that is provided with said through hole 144 152, be provided with the mark that location confirmation is used.

According to first scheme of the present invention; Owing to the fixed sturcture of the motor reel of electric vehicles possesses in order to prevent that said fastening position breaks away from the stopper mechanism that forms from said snap openings; This stopper mechanism is arranged between stationary member and the axletree support; Comprise the breakthrough part that supplies fastening position to insert, first engagement section that engages with first embedded hole that is arranged on said axletree support; Therefore motor reel can not break away from from the axletree support, can motor reel is fixed into and can not rotate with simple structure.

According to alternative plan of the present invention; Owing to second engagement section is set in the rear end of said stopper mechanism; This second engagement section through be arranged on said axletree support on second embedded hole engage the position of carrying out and align with said axletree support, therefore can easily carry out stopper mechanism and align with respect to the position of axletree support.

According to third party's case of the present invention,, therefore can reduce the surface pressure of the part of bearing the rotation counter-force that is created on the motor reel owing on said stopper mechanism, extension is set.

According to cubic case of the present invention, owing to be provided with the recess chimeric in said engagement section, therefore can easily carry out stopper mechanism and align with respect to the position of axletree support with said extension.

According to the 5th scheme of the present invention, because said motor reel is a solid axle, said motor reel is provided with through hole, and the distribution that this through hole feeds to said connecting element extension passes through, and therefore can protect distribution.

According to the 6th scheme of the present invention; Because the outlet of the distribution of said through hole is arranged on the upside of the vehicle body above-below direction of said motor reel; The distribution inlet of said through hole is arranged on the downside of the vehicle body above-below direction of said motor reel; Therefore even raining or elec. vehicle not under the situation in water, can prevent that also water is immersed in the situation of drive motor.

According to the 7th scheme of the present invention; Because in said a pair of fastening of said fastening position; On said fastening an of side of the distribution outlet that is provided with said through hole, be provided with the mark that location confirmation is used; Therefore with motor reel to body mount portion fixedly the time, can be by mistake that the direction of fixed motor axle is mistaken, can export the mode fixed motor axle that becomes upside with distribution.

According to the explanation of the following preferred implementation example of accompanying drawing coordinated, can further clear and definite above-mentioned purpose, characteristic and advantage.

Description of drawings

Fig. 1 is the lateral plan of the electric bicycle of first embodiment.

Fig. 2 is the main portion enlarged drawing of the leg protecting component of Fig. 1.

Fig. 3 is that the II-II alignment of Fig. 1 is looked part sectional view.

Fig. 4 is that the II-II alignment of the Fig. 1 when towards the vehicle body forward observation and in the left side brake wheel being set is looked cutaway view.

Fig. 5 is the figure that is used to explain the fixed sturcture of the motor reel that the electric bicycle of second embodiment is used, and is the main portion enlarged drawing of swing arm shown in Figure 1.

Fig. 6 is the figure that is used to explain the fixed sturcture of the motor reel that the electric bicycle of second embodiment is used; Fig. 6 A is the front view of stopper mechanism shown in Figure 1; Fig. 6 B is the back view of stopper mechanism shown in Figure 1, and Fig. 6 C is the birds-eye view of stopper mechanism shown in Figure 1.

Fig. 7 is the figure that expression is installed in stopper mechanism shown in Figure 6 the state of fixed motor axle in the swing arm shown in Figure 5.

Fig. 8 is the figure of structure of swing arm and the stopper mechanism of expression first variation, and Fig. 8 A is the main portion enlarged drawing of the swing arm of first variation, and Fig. 8 B is the back view of the stopper mechanism of first variation, and Fig. 8 C is the birds-eye view of the stopper mechanism of first variation.

Fig. 9 is that the stopper mechanism that is illustrated in first variation is installed the figure that swing arm fixes the state of motor reel.

Figure 10 is the figure that expression is installed in the swing arm of first variation state of fixed motor axle on the stopper mechanism; Figure 10 A is the main portion enlarged drawing of the swing arm of second variation; Figure 10 B is the back view of the stopper mechanism of second variation, and Figure 10 C is the birds-eye view of the stopper mechanism of second variation.

Figure 11 is the figure that expression is installed in the stopper mechanism of second variation state of fixed motor axle in the swing arm.

Figure 12 is the main portion enlarged drawing of the swing arm of the 3rd variation.

Figure 13 installs the figure that stopper mechanism fixes the state of motor reel in the swing arm of the 3rd variation.

Figure 14 is the figure of electric structure of the charge system of expression the 3rd embodiment.

Figure 15 is the figure of electric structure of the charge system of expression first variation.

Figure 16 is the figure that the XVI-XVI alignment of the body side charge connector shown in Figure 14 of expression second variation is looked an example of section.

Figure 17 is another routine figure that the XVI-XVI alignment of the body side charge connector shown in Figure 14 of expression second variation is looked section.

Figure 18 is the figure that the XVI-XVI alignment of the body side charge connector shown in Figure 14 of expression the 3rd variation is looked an example of section.

Figure 19 is another routine figure that the XVI-XVI alignment of the body side charge connector shown in Figure 14 of expression the 3rd variation is looked section.

The specific embodiment

Below, enumerate preferred embodiment and the fixed sturcture and the charge system of the motor reel of the distribution structure of the motor reel of electric vehicles involved in the present invention, electric vehicles are at length explained with reference to accompanying drawing.

First embodiment

Fig. 1 is the lateral plan of electric bicycle (elec. vehicle) 10.Need to prove, for one mechanism or inscape respectively is set about vehicle body, to the mechanism in left side or the reference symbol additional " L " of inscape, to the mechanism on right side or the reference symbol additional " R " of inscape.

Be combined with head pipe 16 in the upper end of the main frame 12 of electric bicycle 10, this head pipe 16 with 14 supportings of deflecting bar for rotation freely.On deflecting bar 14, be equipped with front-wheel WF axle supporting a pair of front fork 18L, the 18R for rotating, the handle 20 on the top that front-wheel WF can be through being installed in deflecting bar 14 turns to.

Link upperside frame 22L, the 22R of pair of right and left in the bottom of main frame 12,

upperside frame

22L, 22R, rearward extend after the bending from oblique the extending below of junction.To be clipped in the be connected in series storage battery (battery) 24 of the 48V that forms of battery module that upperside frame 22L about this, mode among the 22R be equipped with

12V.Rear frame

26L, 26R at upperside frame 22L, the oriented oblique rear extension of the last binding of 22R.

Pipe 28 before the bottom of main frame 12 is provided with extend along the overall width direction following horizontal; The two ends of pipe 28 are equipped with rearward and on even keel extends before down laterally

underside frame

30L, 30R are provided with along carriage 32L, the 32R of the vertical extension of vehicle body in the rear end of underside frame 30L, 30R.The upper end of

carriage

32L, 32R and

upperside frame

22L, 22R link, and the following horizontal two ends of pipe 34 afterwards of extending along the overall width direction are connected with the lower end of carriage 32L, 32R.Laterally on the back pipe 34 central jiffy stand 38 is being installed down, this central authorities' jiffy stand 38 has two 36L of foot, the 36R that on the overall width direction, leaves.Mode to stride between underside frame 30L, the 30R is equipped with

lateral bracket

40a, 40b, and this

transverse bracket

40a, 40b support storage battery 24.

Pivot plate 44L, the 44R that is formed with swing arm pivot 42 is installed in the front portion of rear frame 26L, 26R.On swing arm pivot 42, swing arm (axletree support) 46L of supporting wheels WR, the leading section axle of 46R are supported to swinging freely,

swing arm

46L, 46R are by

arm cover

48L, 48R protection.Be fixed with axletree 50 at the rear portion of

swing arm

46L, 46R, trailing wheel WR is to rotate freely by 50 supportings of axletree.The top, rear of

swing arm

46L, 46R hangs on

rear frame

26L, 26R through back buffer cell 52L, 52R.Need to prove that axletree 50 is a solid axle.In addition, be provided with the changing of the relative positions that is used to prevent to be fixed on the last axletree 50 of

swing arm

46L, 46R or stopper mechanism 54L, the 54R that comes off at the rear portion of

swing arm

46L, 46R.

In the wheel 56 of trailing wheel WR, be provided with the electrical motor (drive motor) 58 of the driving usefulness of electric bicycle 10.That is, drive motor 58 is wheel hub type electrical motors.Above

buffer cell

52L, 52R, be provided with the DC current of supplying with via electric wireline 60 from storage battery 24 is converted to three-phase alternating current and to the PDU (Motorized drive unit) 62 that drive motor 58 is supplied with, supplies with three-phase alternating current from this PDU62 to drive motor 58.Be provided with DC-DC conv 64 at the rear of PDU62, DC-DC conv 64 becomes to drive the drive motor 58 needed voltage of Denso spare in addition of electric bicycle 10 with the voltage transitions of storage battery 24.On the top of PDU62, except that PDU62, DC-DC conv 64, also be provided with the ECU66 of each Denso spare of control.

Be provided with the front shroud 68 that covers electric bicycle 10 as the part of vehicle body cover at the vehicle body front side of the handle 20 of electric bicycle 10; The instrument pack that comprises speed gauge 70 as the part of said Denso spare is installed on the top of front shroud 68, the head lamp 72 as the part of said Denso spare is installed at the vehicle body front side of handle 20.Be provided with the leg protecting component 74 that links to each other with front shroud 68 and cover electric bicycle 10 as the part of vehicle cover at the rear side of head pipe 16.Leg protecting component 74 covers the foot the place ahead that sits in the chaufeur on the seat 76, and wherein, seat 76 is arranged on the top of

rear frame

26L, 26R.

Above front-wheel WF, be equipped with front fender apron 78, be formed with on the top of storage battery 24 and link to each other with the bottom of leg protecting component 74 and be used for carrying the end pedal 80 of putting the pin that sits in the chaufeur on the seat 76.Foreign side at

rear frame

26L, 26R is provided with the seat cover 82 as the part of vehicle body cover, is provided with seat 7 on the top of seat cover 82.Rearward end at seat cover 82 is equipped with rear light device 84, rear mudguard 86, shelf 88 as the part of said Denso spare.

In the upper left-hand of leg protecting component 74 is that the opposition side of source switch 89 is equipped with that to be used for storage battery 24 is carried out electrically-charged charger bonded assembly female connector be body side charge connector 90 (with reference to Fig. 2), and body side charge connector 90 is provided with towards the oblique below of vehicle body.That is, on body side charge connector 90, have the opening portion of the terminal insertion of the male connector that supplies the charger side, the inlet of this opening portion is provided with towards the oblique below of vehicle body.On source switch 89, have the key hole that inserts key, below the upper left-hand of leg protecting component 74 and source switch 89, be provided with the switching key 91 that to close this key hole.

Cap 92 is installed on body side charge connector 90, and this cap 92 is used to prevent contact the situation that flows through electric current at this external conductor because of body side charge connector 90 with outside conductings such as people.Storage battery 24 is connected with body side charge connector 90 through electric wireline 94.

Thus; Because body side charge connector 90 is positioned at the top of the leg protecting component 74 in seat 76 the place aheads that chaufeur takes one's seat; Though therefore be connected with the male connector of said charger side easily, also considered through body side charge connector 90 being provided with and on body side charge connector 90, being provided with lid down to prevent casual contact.In addition, often operate the source switch on right side in the time of on taking vehicle, but, therefore can not hinder the operation of source switch, situation about contacting with body side charge connector 90 can not take place yet because body side charge connector 90 is positioned at the left side.

Fig. 3 is that the II-II alignment of Fig. 1 is looked part sectional view, the distribution structure of the motor reel 50 of expression electric bicycle 10 usefulness.Center through axletree 50 being connected trailing wheel WR is provided with, 50 supporting wheels WR of axletree thus, and

swing arm

46L, 46R be axle tree from both sides.

Trailing wheel WR comprises wheel 56 and tire 100, and wheel 56 is the dividing wheels that possess main part 104 and

sidepiece

106L, 106R, and said main part 104 has the drop center portion 102 that keeps tire 100, and said

sidepiece

106L, 106R are from axially being installed in the both sides of main part 104.Main part 104 and

sidepiece

106L, 106R are fastening through bolt 108.

Drive motor 58 has connecting element 110 as stator, has the revolving part 112 as rotor of not shown permanent magnet, and connecting element 110 is chimeric with axletree 50 splines in the wheel 56.That is, axletree 50 becomes the motor reel of drive motor 58.Axletree (below be called motor reel) 50 is called fixed part 114 with connecting element 110 chimeric positions.The revolving part 112 of drive motor 58 is fixed on the inboard (inboard of drop center portion 102) of the main part 104 of wheel 56.

Motor reel 50 has sidepiece 106L, the supporting of 106R axle in the both sides of fixed part 114 be the 116L of side bearing portion, 116R that can rotate and fastening position 118L, the 118R that is arranged on the outside of the 116L of this side bearing portion, 116R.Fixed part 114 sides of the 116R of side bearing portion are made up of the cylinder of first diameter, and the fastening position 118R side of the 116R of side bearing portion is made up of the cylinder of second diameter littler than first diameter.The 116L of side bearing portion is made up of the cylinder of the 3rd

diameter.Fastening position

118L, 118R are used for through

swing arm

46L, 46R motor reel 50 being fastened to the position of body side, are formed with ridge.Be formed with and the member of cylinder a pair of fastening of almost parallel on the fore-and-aft direction of vehicle body and overall width direction at fastening position 118L,

118R.Reference symbol

120L, 120R represent fastening of upside, and

reference symbol

122L, 122R represent fastening of downside.

Between

sidepiece

106L, 106R and motor reel 50, be provided with bearing (rotating support member) 124L, 124R, thus, the 116L of side bearing portion, 116R can be rotatable with 50 supportings of motor reel, so wheel 56 can rotate with respect to motor reel 50.This bearing 124L, 124R are through fixing with the location division that is formed on

sidepiece

106L, 106R (lateral side location division) 126L, 126R and location division (the motor reel side location division) 128L, the 128R butt that are formed on the motor reel 50.

Location division 128L forms with the different of diameter of the 116L of side bearing portion through the diameter of fixed part 114, so the diameter of location division 128L is bigger than the diameter (the 3rd diameter) at the position that bearing 124L is set.Location division 128R forms through the cylinder of first diameter of the 116R of side bearing portion and the cylinder of second diameter, so the diameter of location division 128R is first diameter, and is bigger than the diameter (second diameter) at the position that bearing 124R is set.

Between

sidepiece

106L, 106R and motor reel 50, also be provided with containment member 130L,

130R.Containment member

130L, 130R are arranged on the motor reel 50 directions outside of

sidepiece

106L, 106R, and bearing 124L, 124R are arranged on the motor reel 50 directions inboard of

sidepiece

106L, 106R.

Axle collar 134R and the location division 132R butt that forms by 116R of side bearing portion and fastening position 118R.And, swing arm 46R and axle collar 134R butt and be arranged on the fastening position 118R of motor reel 50, the outside is being provided with stopper mechanism 54R, rotation prevention portion 136R, packing ring 138R, nut (stationary member) 140R in order more leaning on axially than swing arm 46R.

On the other hand, axle collar 134L and location division 142 butts that form by 116L of side bearing portion and fastening position 118L.And, swing arm 46L and axle collar 134L butt and be arranged on the fastening position 118L of motor reel 50, the outside is being provided with stopper mechanism 54L, rotation prevention portion 136L, packing ring 138L, nut (stationary member) 140L in order more leaning on axially than swing arm 46L.

Through

nut

140L, 140R with trailing wheel WR (tire 100, wheel 56, drive motor 58) via motor reel 50 be installed in

swing arm

46L, 46R is last, thus trailing wheel WR is installed on the vehicle body.When clamp nut 140R, fastening swing arm 46R between the location division 132 through nut 140R and motor reel 50, so clamp nut 140R and the power that produces can not be applied on the wheel 56.In addition, when clamp nut 140L, fastening swing arm 46L between the location division 142 through nut 140L and motor reel 50, so clamp nut 140L and the power that produces can not be applied on the wheel 56.

On axletree 50, when the vehicle body forward observation, be formed with the through hole 144 that is used for carrying out wiring with connecting element 110 on the right side.That is, be provided with through hole 144 on the right side of motor reel 50, the distribution 148 that the coil 146 that this through hole 144 is used to feed to connecting element 110 carries out supply of electric power etc. passes through.The distribution inlet 150 of this through hole 144 is arranged on the motor reel 50 directions outside of sidepiece 106R, and the distribution outlet 152 of through hole 144 is arranged on the motor reel 50 directions inboard of sidepiece 106R.In detail, distribution inlet 150 is provided with to such an extent that lean on the motor reel 50 directions outside than containment member 130R, and distribution outlet 152 is provided with to such an extent that lean on motor reel 50 directions inboard than location division 128R.The through hole 144 of motor reel 50 is arranged on the above-below direction (vertical) of vehicle body, and the opening of the downside of through hole 144 becomes distribution inlet 150, and the opening of the upside of through hole 144 becomes distribution outlet 152.

Be provided with the mark that location confirmation is used in that fastening 120L, the 120R of upside are last.Thus; The mode that becomes upside with this mark is settled motor reel 50; Thereby can the distribution outlet 152 of through hole 144 be positioned to upside, when being fixed on motor reel 50 on the swing arm 46L, the mistake situation that the direction of fixed motor axle 50 is mistaken can not occur.

Sidepiece 106R on the right side when the vehicle body forward observation is provided with brake drum cover 154, in the space that is formed by this sidepiece 106R and brake drum cover 154, is provided with the brake wheel 156 of braking usefulness.Brake wheel 156 is arranged on brake drum cover 154 sides.On brake drum cover 154, be provided with the patchhole 158 that distribution 148 can insert, on this patchhole 158, be provided with grommet (grommet) 160 as flashing member.The space of distribution 148 through forming by patchhole 158, sidepiece 106R and brake drum cover 154, and be inserted in the through hole 144, and be connected with the connecting element 110 of drive motor 58.

Like this; Through than the axle head of motor reel 50 in the inner part and the inboard of

swing arm

46L, 46R through hole 144 is set; And make distribution 148 through this through hole 144; Need not subtend drive motor 58 bonded assembly high-voltage wires thus special cover etc. is set, can be with simple structural defence distribution 148, in order to avoid interfere with people such as chaufeur or obstacle.

Owing to be provided with the patchhole 158 that distribution 148 can insert at brake drum cover 154, distribution 148 is inserted in the said through hole 144 through patchhole 158, on patchhole 158, is provided with grommet 160, can prevent that therefore water logging from arriving the situation in the drive motor 58.

Owing to when the vehicle body forward observation, be provided with through hole 144 on the right side, so chaufeur can stand in through hole 144 sides (right side) hardly, can suppress high-voltage wire chaufeur is exerted an influence.Need to prove that in Japan, vehicle is at keep left, therefore through hole 144 is set on the right side when the vehicle body forward observation, but vehicle is under the situation of keep right, through hole 144 is set in the left side when the vehicle body forward observation.

Because the distribution of through hole 144 inlet 150 downsides at motor reel 50; And the distribution of through hole 144 outlet 152 upsides at motor reel 50; Therefore raining or electric bicycle 10 under the situation in water with not ing, can prevent that water logging from arriving the interior situation of drive motor 58.

Need to prove, in the above-described embodiment, in the wheel 56 of trailing wheel WR, be provided with drive motor 58, but also can in the wheel 56 of front-wheel WF, be provided with drive motor 58.In this case, the axletree support becomes

front fork

18L, 18R.

In addition, in the above-described embodiment, brake wheel 156 is set on the right side when the vehicle body forward observation, but when the vehicle body forward observation, also brake wheel 156 can be set in the left side.Fig. 4 is that the II-II alignment of the Fig. 1 when towards the vehicle body forward observation and in the left side brake wheel 156 being set is looked cutaway view.

[second embodiment]

Next, the fixed sturcture to the motor reel 50 of electric bicycle 10 usefulness describes.Fig. 5 is the main portion enlarged drawing of expression swing arm 46L shown in Figure 1, and Fig. 6 is the figure of expression stopper mechanism 54L shown in Figure 1.Fig. 6 A is the front view of stopper mechanism 54L, and Fig. 6 B is the back view of stopper mechanism 54L, and Fig. 6 C is the birds-eye view of stopper mechanism 54L.

The fastening position 118L of motor reel 50 is used for carrying out the fastening position to body side through nut 140L, as above-mentioned, has fastening 120L of upside, fastening 122L of downside.This

fastening

120L, 122L are parallel with the fore-and-aft direction of vehicle body.Swing arm 46L has arm 200 and end pieces (end peace) portion 202, in end pieces portion 202, is provided with snap openings 204, this snap openings 204 rotation (rotation) of restrictions motor axle 50 with the form fit of fastening position 118L, and open towards the vehicle body rear.The limit 206a of the Width of snap openings 204,206b are opposite side parallel with the vehicle body fore-and-aft direction, and limit 206a, the 206b of this snap openings 204 contact with

fastening

120L, 122L when in this snap openings 204, inserting fastening position 118L.Because fastening position 118L has

fastening

120L, 122L; Therefore swing arm 46L can utilize limit 206a, the 206b of snap openings 204 to keep out the rotation counter-force of motor reel 50, thereby can keep the fastening force that fastening position 118L is carried out fastening nut 140L.

Stopper mechanism 54L has the breakthrough part 208 that supplies fastening position 118L to insert, first engagement section 212 that engages with first embedded hole 210 on being arranged on swing arm 46L, and the chimeric fitting portion 214 of open portion at the vehicle body rear of snap openings 204.The limit 216a of the Width of breakthrough part 208,216b are opposite side parallel with the vehicle body fore-and-aft direction, and limit 216a, the 216b of this breakthrough part 208 contact with

fastening

120L, 122L when in this breakthrough part 208, inserting fastening position 118L.

After motor reel 50 inserted from the rear of the snap openings 204 of swing arm 46L, this stopper mechanism 54L is installed in the end pieces portion 202 of swing arm 46L, can prevents the changing of the relative positions of motor reel 50 thus or come off.In addition, align with respect to the position of swing arm 46L, therefore can stopper mechanism 54L correctly be installed on the swing arm 46L because fitting portion 214 carries out stopper mechanism 54L.

Fig. 7 is the figure that expression is installed in stopper mechanism 54L the state of fixed motor axle 50 on the swing arm 46L.That kind as shown in Figure 7; The fastening position 118L of motor reel 50 is inserted in the breakthrough part 208 of snap openings 204 and stopper mechanism 54L of swing arm 46L; Even therefore nut 140L takes place loosening; Also moving of breakthrough part 208 restrictions motor axles 50 can be passed through, thereby the situation that motor reel 50 comes off from swing arm 46L can be prevented.In addition, through the size of breakthrough part 208 being processed the shape identical, can prevent the changing of the relative positions of motor reel 50 thus with the fastening position 118L of motor reel 50.

Like this; Before motor reel 50 being inserted the back from the rear of the snap openings 204 of swing arm 46L and nut 140L is being installed; First engagement section 212 of stopper mechanism 54L is engaged with first embedded hole 210 of swing arm 46L; In breakthrough part 208, insert motor reel 50 simultaneously; And make fitting portion 214 chimeric with the vehicle body rear open portion of snap openings 204, thus only just can not come off from swing arm 46L through clamp nut 140L motor reel 50, can motor reel 50 be fixed into simple structure and not rotate (rotation).

In addition; Owing to be provided with a pair of

fastening

120L, 122L at fastening position 118L; Therefore snap openings 204 that contacts with

fastening

120L, 122L and breakthrough part 208 can be kept out the power that rotation counter-force that the connecting element 110 because of drive motor 58 afforded will be rotated motor reel 50 effectively; Thereby can keep the fastening force of nut 140L, even nut 140L is loosening, through cheap and stopper mechanism 54L simple in structure; Motor reel 50 can not come off from swing arm 46L yet, thereby can fixed motor axle 50.

[variation of second embodiment]

Need to prove that above-mentioned second embodiment can be out of shape as follows.

(first variation) Fig. 8 is the figure of structure of swing arm 46L and the stopper mechanism 54L of expression first variation; Fig. 8 A is the main portion enlarged drawing of the swing arm 46L of first variation; Fig. 8 B is the back view of the stopper mechanism 54L of first variation, and Fig. 8 C is the birds-eye view of the stopper mechanism 54L of first variation.To the structure mark prosign same with the structure shown in above-mentioned second embodiment.

First engagement section 212 that stopper mechanism 54L has the breakthrough part 208 that supplies fastening position 118L to insert, engages with first embedded hole 210 on being arranged on swing arm 46L, also have be arranged on swing arm 46L on the second embedded hole 220a, the 220b second engagement section 222a, the 222b that engage.First engagement section 212 engages with first embedded hole 210 from the face in the outside of swing arm 46L, and the

second engagement section

222a, 222b engage with the second embedded hole 220a, 220b from the face of the inboard of swing arm 46L.This

second engagement section

222a, 222b carry out stopper mechanism 54L and align with respect to the position of swing arm 46L.

At first; Before motor reel 50 being inserted the back from the rear of the snap openings 204 of swing arm 46L and nut 140L is being installed; The second engagement section 222a, the 222b of stopper mechanism 54L are engaged with the second embedded hole 220a, the 220b of swing arm 46L; In breakthrough part 208, insert motor reel 50 simultaneously, first engagement section 212 is engaged with first embedded hole 210, and clamp nut 140L.Stopper mechanism 54L in the variation 1 is installed in fixed motor axle 50 on the swing arm 46L.At this state of having fixed shown in Fig. 9.Thus, motor reel 50 can not come off from swing arm 46L, therefore can be with simple structure fixed motor axle 50.

(second variation) Figure 10 is the figure of structure of swing arm 46L and the stopper mechanism 54L of expression second variation; Figure 10 A is the main portion enlarged drawing of the swing arm 46L of second variation; Figure 10 B is the back view of the stopper mechanism 54L of second variation, and Figure 10 C is the birds-eye view of the stopper mechanism 54L of second variation.To the structure mark prosign identical with the structure shown in above-mentioned second embodiment.

Stopper mechanism 54L has the breakthrough part 208 that supplies fastening position 118L to insert, first engagement section 212 that engage with first embedded hole 210 on being arranged on swing arm 46L, and the chimeric fitting portion 214 of open portion at the vehicle body rear of snap openings 204, also has a pair of extension 224a, the 224b that extend and contact with fastening 120L, the 122L of fastening position 118L along motor reel 50 directions when being installed in stopper mechanism 54L on the swing arm 46L.A pair of extension 224a,

contact surface

226a, 226b that 224b has roughly to be contacted with

fastening

120L, 122L,

contact surface

226a, 226b and

limit

216a, 216b are positioned on the same plane.

At first; Before motor reel 50 being inserted the back from the rear of the snap openings 204 of swing arm 46L and nut 140L is being installed; First engagement section 212 of stopper mechanism 54L is engaged with first embedded hole 210 of swing arm 46L, and simultaneously with

extension

224a, 224b with between clip fastening position 118L mode be inserted in the snap openings 204, thereby motor reel 50 inserts in the breakthrough parts 208; Make fitting portion 214 chimeric with the vehicle body rear open portion of snap openings 204, and clamp nut 140L.Need to prove that the A/F of the snap openings 204 in second variation (the limit 206a of snap openings 204, the distance between 206b) is longer than fastening the 120L of fastening position 118L, thickness between 122L.

Figure 11 is the figure that expression is installed in the stopper mechanism 54L in second variation state of fixed motor axle 50 on the swing arm 46L.Shown in figure 11, the fastening position 118L of motor reel 50 is inserted in the breakthrough part 208 of snap openings 204 and stopper mechanism 54L of swing arm 46L, is clipped by a pair of extension 224a, 224b.At this moment, fastening the 120L, 122L that

forms contact surface

226a, 226b and the fastening position 118L of a pair of

extension

224a, 224b be state of contact roughly.Thus; Except the effect of above-mentioned second embodiment; Owing to can utilize a pair of

extension

224a, 224b to bear the rotation counter-force that is created on the motor reel 50; Therefore the surface pressure of the part of bearing the rotation counter-force that is created on the motor reel 50 can be reduced, and the rigidity of the part of bearing the rotation counter-force can be improved.

Need to prove; In above-mentioned second embodiment; Limit 216a, the 216b of

limit

206a, 206b and breakthrough part 208 through snap openings 204 bear the rotation counter-force that is created on the motor reel 50; Therefore bear this area that is created in the rotation counter-force on the motor reel 50 and depend on the thickness of swing arm 46L and the thickness of stopper mechanism 54L, thickness becomes more that thin surface pressure becomes high more.In addition, in order to improve the rigidity of the part of bearing the rotation counter-force that is created on the motor reel 50, need to improve end pieces portion 202 integral body of swing arm 46L and the rigidity of stopper mechanism 54L, cost uprises.

(the 3rd variation) can be with the end pieces portion 202 following changes like this of the swing arm 46L of above-mentioned second variation.Figure 12 is the main portion enlarged drawing of the swing arm 46L of the 3rd variation.In the 3rd variation, use the stopper mechanism 54L shown in second variation.To the structure mark prosign identical with the structure shown in above-mentioned second embodiment.

Snap openings 204 has a pair of recess 228a, the 228b chimeric with a pair of extension 224a, the 224b of stopper mechanism 54L.The degree of depth of this a pair of

recess

228a, 228b equates with the thickness of

extension

224a, 224b.

Figure 13 is the figure that expression is installed in stopper mechanism 54L the state of fixed motor axle 50 on the swing arm 46L of the 3rd variation.Shown in figure 13, the fastening position 118L of motor reel 50 is inserted in the breakthrough part 208 of snap openings 204 and stopper mechanism 54L of swing arm L, is clipped by a pair of extension 224a, 224b.At this moment, the recess 228a, the 228b that form a pair of

extension

224a, 224b and snap openings 204 are chimeric, and fastening the 120L of

contact surface

226a, 226b and the fastening position 118L of a pair of

extension

224a, 224b, 122L state of contact roughly.

Thus; Except that the effect of above-mentioned second embodiment; Owing to can utilize a pair of

extension

In addition; Under the chimeric situation of the recess 228a, the 228b that make a pair of

extension

224a, 224b and snap openings 204, the limit 206a that

recess

228a, 228b are not set of snap openings 204,206b and a pair of extension 224a, the contact surface 226a of 224b, 226b are positioned on the same plane.Thereby; Even under the situation of the position changing of the relative positions that fastening position 118L belongs to from

extension

224a, 224b; Because limit 206a, the 206b of snap openings 204 contact with fastening 120L, the 122L of fastening position 118L; Therefore limit 206a, the 206b of snap openings 204 also can bear the rotation counter-force that is created on the motor reel 50, thereby can keep the fastening force of nut 140L.In addition, owing to make

extension

224a, 224b and

recess

228a, 228b chimeric, so stopper mechanism 54L becomes easy with respect to the location of swing arm 46L.

Need to prove; In above-mentioned second embodiment and first～the 3rd variation; The situation of using the fastening position 118L of swing arm 46L and stopper mechanism 54L fixed motor axle 50 has been described; But for fastening position 118R fixing, since same with fastening position 118L, explanation therefore omitted.That is, fastening position 118R fixing can use the swing arm 46R, the stopper mechanism 54R that have with the same function of swing arm 46L, stopper mechanism 54L to carry out.

[the 3rd embodiment]

Next, Figure 14 is the figure of electric structure of the charge system of expression electric bicycle 10 and charger 250.Electric bicycle 10 has storage battery 24, the body side charge connector 90 as female connector, the source switch 252 of electric bicycle 10, coupled switch 254, and charger 250 has the charger side-connector 256 and charger body 258 as male connector.

The battery module that storage battery 24 has a 12V be connected in series the battery pack 260 that forms, with battery pack 260+side bonded assembly wire fuse 262.Source switch 252 is connected with the positive pole of storage battery 24.

On body side charge connector 90, have with the anodal input part 264 of the side of the positive electrode bonded assembly of storage battery 24, with the negative side bonded assembly negative pole input part 266 of storage battery 24.Negative pole input part 266 has the first negative pole input part 266a and the second negative pole input part 266b.Coupled switch 254 is arranged between the negative side and the second negative pole input part 266b of storage battery 24, is when source switch 252 breaks off, to connect and the switch of open circuited and source switch 252 interlocks when source switch 252 is connected.

On charger side-connector 256, have with the anodal efferent 268 of the side of the positive electrode bonded assembly of charger body 258, with the negative side bonded assembly negative pole efferent 270 of charger body 258.Anodal efferent 268 have with the anodal input part 264 bonded assemblys first anodal efferent 268a, with the second negative pole input part 266b bonded assembly, the second anodal efferent 268b.Need to prove that negative pole efferent 270 is connected with the first negative pole input part 266a.

Between the side of the positive electrode of the first anodal efferent 268a and the second anodal efferent 268b and charger body 258, be provided with relay circuit 272.Relay circuit 272 has coil 274 and relay switch (normally opened relay switch) 276; The first anodal efferent 268a clamps coil 274 with the second anodal efferent 268b and is connected, and between the side of the positive electrode of the first anodal efferent 268a and charger body 258, is provided with relay switch 276.

In the charge system of the structure with above that kind, if with disconnecting power switch 252 under charger side-connector 256 and the body side charge connector 90 bonded assembly states, then coupled switch 254 is connected.When coupled switch 254 is connected, apply to coil 274 via anodal input part 264 and the first anodal efferent 268a, the second negative pole input part 266b and the second anodal efferent 268b from the electric current of storage battery 24.That is, electric current flows through coil 274 via anodal input part 264 and the first anodal efferent 268a, and the electric current that should flow returns to storage battery 24 via the second anodal efferent 268b and the second negative pole input part 266b.Thus, coil 274 is made relay switch 276 connect by excitation.Through relay switch 276 is connected, supply with to storage battery 24 via charger side-connector 256 and body side charge connector 90 from the electric power of charger body 258 thus, storage battery 24 is charged.In addition, when source switch 252 was connected, coupled switch 254 broke off, and in coil 274, does not have electric current to flow through.Thereby when source switch 252 was connected, relay switch 276 broke off, and can't carry out the charging of storage battery 24.

Like this,, just can't charge, therefore need not to pour into special attention and just can charge as long as do not break off the source switch 252 of electric bicycle 10.In addition; The change-over switch that does not need high price; Owing to relay switch 276 is arranged on carries out voltage-controlled charger 250 sides, therefore also can adopt cheap switch, thereby the charge system as the system of the cheapness of the vehicle that is applicable to the cheapness that cart is such can be provided.Originally, owing to possess the high parts of proof voltage in the charger side, the relay coil 274 that therefore is arranged on charger body 258 sides becomes the high parts of proof voltage, need not to possess the high parts of proof voltage in body side, and cheap charge system can be provided.

In addition; Through body side charge connector 90 is processed female connector; People's finger external conductor such is difficult for and anodal input part 264, the first negative pole input part 266a or the second negative pole input part 266b contact thus, thereby can prevent to flow through in the conductor externally the situation of electric current.

In addition; As long as charger side-connector 256 is not connected with source switch 252 open circuited body side charge connectors 90; Relay switch 276 just can not connected; Therefore even under the first anodal efferent 268a of charger side-connector 256 or the second anodal efferent 268b and negative pole efferent 270 and situation that external conductor contacts, externally do not flow through electric current in the conductor yet.

[variation of the 3rd embodiment]

Need to prove that above-mentioned the 3rd embodiment also can be out of shape as follows like this.

(first variation) Figure 15 is the figure of electric structure of the charge system of expression first variation.Need to prove, to the structure mark prosign identical with the structure shown in above-mentioned the 3rd embodiment.

In first variation, between the negative side of storage battery 24 and the second negative pole input part 266b, coupled switch 254 is set, and between the negative side of storage battery 24 and the first negative pole input part 266a, coupled switch (second coupled switch) 280 is set also.

In above-mentioned the 3rd embodiment, be in that anodal input part 264 is connected with the side of the positive electrode of storage battery 24 all the time, the negative side of the first negative pole input part 266a and storage battery 24 bonded assembly state all the time.Thereby, externally under conductor and the situation that the anodal input part 264 and the first negative pole input part 266a contact, can externally flow through electric current in the conductor.

Yet; In first variation; Because between the negative side of storage battery 24 and the first negative pole input part 266a, also be provided with coupled switch 280, therefore when the state that source switch 252 is connected, the negative side of storage battery 24 and the first negative pole input part 266a and the second negative pole input part 266b are broken by TURP; Therefore even externally under conductor and anodal input part 264 and the situation that the first negative pole input part 266a or the second negative pole input part 266b contact, also can prevent externally to flow through electric current in the conductor.

Need to prove, also can coupled switch 280 be arranged between the side of the positive electrode and anodal input part 264 of storage battery 24.In this case, also can prevent when the state of source switch 252 connections, externally to flow through the situation of electric current in the conductor.

(second variation) Figure 16 is the figure that the XVI-XVI alignment of expression body side charge connector 90 shown in Figure 14 is looked an example of section.Need to prove, for the structure mark prosign identical with the structure shown in above-mentioned the 3rd embodiment.

First peristome 290, second peristome 292 and the 3rd peristome 294 that body side charge connector 90 has that the first anodal efferent 268a, the second anodal efferent 268b and the negative pole efferent 270 of charger side-connector 256 can insert.

The anodal input part 264 of body side charge connector 90 is configured in the inboard of first peristome 290, and the first negative pole input part 266a is configured in the inboard of the 3rd peristome 294, and the second negative pole input part 266b is configured in the inboard of second peristome 292.

Be provided with the limiting member 300a, the 300b that contact of restriction said external conductor and the second negative pole input part 266b and the first negative pole input part 266a near in the inlet of second peristome 292 and the 3rd peristome 294.That is, limiting member 300a is arranged between second peristome 292 and the second negative pole input part 266b, and limiting member 300b is arranged between the 3rd peristome 294 and the first negative pole input part 266a.

Limiting member 300a, 300b are resin or elastic component (for example rubber), have the

first member

302a, 302b and the second member 304a, the 304b of the setting of being separated from each other.The

first member

302a, 302b are shorter than the thickness D of the second anodal efferent 268b and negative pole efferent 270 with the separating distance of the

second member

304a, 304b, and the second anodal efferent 268b, negative pole efferent 270 that limiting member 300a, 300b subtend second peristome 292, the 3rd peristome 294 insert have friction drag.

Thereby; As long as the user is not connected charger side-connector 256 intentionally with body side charge connector 90; The first anodal efferent 268a, the second anodal efferent 268b and negative pole efferent 270 just can not be connected with anodal input part 264, the second negative pole input part 266b and the first negative pole input part 266a, so body side charge connector 90 and charger side-connector 256 can not become coupled condition.

Like this; Because limiting member 300a, 300b are arranged between the second negative pole input part 266b, the first negative pole input part 266a and second peristome 292, the 3rd peristome 294; Therefore external conductor further reduces with the possibility that the first negative pole input part 266a or the second negative pole input part 266b contact, thereby can prevent to flow through in the conductor externally the situation of electric current.

Need to prove; Near also can be not in the inlet of second peristome 292 and the 3rd peristome 294 limiting member 300a, 300b be set, and (near in the inlet of first peristome 290) is provided with limiting member 300 (300a or 300b) between the anodal input part 264 and first peristome 290.

Figure 17 is another routine figure that the XVI-XVI alignment of expression body side charge connector 90 shown in Figure 14 is looked section.Need to prove, to marking prosign with the above-mentioned identical structure of structure shown in Figure 16.

Be provided with the limiting member 310a, the 310b that contact of restriction said external conductor and the second negative pole input part 266b and the first negative pole input part 266a near in the inlet of second peristome 292 and the 3rd peristome 294.That is, limiting member 310a is arranged between second peristome 292 and the second negative pole input part 266b, and limiting member 300b is arranged between the 3rd peristome 294 and the first negative pole input part 266a.

Limiting

member

310a, 310b are spring members, have the

first member

312a, 312b and the second member 314a, the 314b of the setting of being separated from each other.The

first member

312a, 312b and the

second member

314a, 314b can be elastic components such as dish spring, also can be made up of metal.The

first member

312a, 312b are shorter than the thickness D of the second anodal efferent 268b and negative pole efferent 270 with the separating distance of the

second member

314a, 314b, and the second anodal efferent 268b, negative pole efferent 270 that limiting

member

310a, 310b subtend second peristome 292, the 3rd peristome 294 insert have friction drag.

Like this; Owing between the second negative pole input part 266b, the first negative pole input part 266a and second peristome 292, the 3rd peristome 294, limiting

member

310a, 310b are set; Therefore external conductor further reduces with the possibility that the first negative pole input part 266a or the second negative pole input part 266b contact, thereby can prevent to flow through in the conductor externally the situation of electric current.

Need to prove; Near also can be not in the inlet of second peristome 292 and the 3rd peristome 294 limiting

member

310a, 310b be set, and (near in the inlet of first peristome 290) is provided with limiting member 310 (310a or 310b) between the anodal input part 264 and first peristome 290.

(the 3rd variation) is in second variation; Limiting member 300a is arranged between second peristome 292 and the second negative pole input part 266b; Limiting member 300b is arranged between the 3rd peristome 294 and the first negative pole input part 266a; But in the 3rd variation, limiting member is arranged between first peristome 290 and the anodal input part 264.

Figure 18 is the figure that the XVI-XVI alignment of the body side charge connector 90 shown in Figure 14 of expression the 3rd variation is looked an example of section.Need to prove, to the structure mark prosign identical with structure shown in Figure 16.

Be provided with the limiting member 300c that contacts of restriction said external conductor and anodal input part 264 near in the inlet of first peristome 290.That is, limiting member 300c is arranged between first peristome 290 and the anodal input part 264.Limiting member 300c is resin or elastic component (for example rubber), has the first member 302c and the second member 304c of the setting of being separated from each other.The first member 302c is shorter than the thickness D of the first anodal efferent 268a with the separating distance of the second member 304c, and the first anodal efferent 268a that limiting member 300c subtend first peristome 290 inserts has friction drag.

Like this, owing between the anodal input part 264 and first peristome 290, limiting member 300a is set, so external conductor further reduces with the possibility that anodal input part 264 contacts, thereby can prevent to flow through in the conductor externally the situation of electric current.

Need to prove, limiting member 300a, 300b, 300c are set near also can be in whole inlet of second peristome 292, the 3rd peristome 294 and first peristome 290.

Figure 19 is another routine figure that the XVI-XVI alignment of the body side charge connector 90 shown in Figure 14 of expression the 3rd variation is looked section.Need to prove, to marking prosign with the above-mentioned identical structure of structure shown in Figure 17.

Be provided with the limiting member 310c that contacts of restriction said external conductor and anodal input part 264 near in the inlet of first peristome 290.That is, limiting member 310c is arranged between first peristome 290 and the anodal input part 264.Limiting member 310c is a spring member, has the first member 312c and the second member 314c of the setting of being separated from each other.The first member 312c and the second member 314c can be elastic components such as dish spring, also can be made up of metal.Separating distance is shorter than the thickness D of the first anodal efferent 268a between the first member 312c and the second member 314c, and the first anodal efferent 268a that limiting member 310a subtend first peristome 290 inserts has friction drag.

Like this, owing between the anodal input part 264 and first peristome 290, limiting member 310c is set, so external conductor further reduces with the possibility that anodal input part 264 contacts, thereby can prevent to flow through in the conductor externally the situation of electric current.

Need to prove, limiting

member

310a, 310b, 310c are set near also can be in whole inlet of second peristome 292, the 3rd peristome 294 and first peristome 290.

More than, use preferred embodiment to describe the present invention, but technical scope of the present invention is not limited to the scope that above-mentioned embodiment is put down in writing.To those skilled in the art, obviously can apply various changes or improvement to above-mentioned embodiment.The record of Accessory Right claim can know that clearly the mode that has applied this change or improvement is also included within the technical scope of the present invention.In addition, the parenthesized symbol of in claims, putting down in writing is to imitate the symbol in the accompanying drawing additional for easy to understand the present invention, should not be interpreted as the present invention and be defined in the key element that has marked this symbol.

Claims

1. the fixed sturcture of the motor reel of an electric vehicles (50); In the elec. vehicle; The drive motor (58) that in wheel (56), possesses the wheel hub type of the usefulness of going; Two ends as the motor reel (50) of the axletree of said drive motor (58) can not be rotatably fixed on the vehicle body by axletree support (18L, 18R, 46L, 46R), are fixed with connecting element (110) on the said motor reel (50) in said wheel (56), are fixed with revolving part (112) in the inboard of said wheel (56); The fixed sturcture of the motor reel of said electric vehicles (50) is characterised in that

Be provided with at the two ends of said motor reel (50) and be used for carrying out fastening fastening position (118L, 118R) to said body side through stationary member (140L, 140R); Be formed with a pair of fastening (120L, 122L, 120R, 122R) parallel with the fore-and-aft direction of vehicle body on this fastening position (118L, 118R)

Said axletree support (18L, 18R, 46L, 46R) is provided with snap openings (204), and this snap openings (204) limits the rotation of said motor reel (50) with the form fit of said fastening position (118L, 118R), and opens towards said vehicle body rear,

The fixed sturcture of the motor reel of said electric vehicles (50) possesses in order to prevent that said fastening position (118L, 118R) breaks away from and the stopper mechanism (54L, 54R) of formation from said snap openings (204); This stopper mechanism (54L, 54R) is arranged between said stationary member (140L, 140R) and the said axletree support (18L, 18R, 46L, 46R), comprises the breakthrough part (208) that supplies said fastening position (118L, 118R) to insert, first engagement section (212) that engages with first embedded hole (210) on being arranged on said axletree support (18L, 18R, 46L, 46R).

2. the fixed sturcture of the motor reel of electric vehicles according to claim 1 (50) is characterized in that,

Be provided with second engagement section (222a, 222b) in the rear end of said stopper mechanism (54L, 54R), this second engagement section (222a, 222b) through be arranged on said axletree support (18L, 18R, 46L, 46R) on second embedded hole (220a, 220b) engage the position of carrying out said stopper mechanism (54L, 54R) and said axletree support (18L, 18R, 46L, 46R) and align.

3. the fixed sturcture of the motor reel of electric vehicles according to claim 1 (50) is characterized in that,

Said breakthrough part (208) at said stopper mechanism (54L, 54R) is provided with along the extended extension of said motor reel (50) direction (224a, 224b).

4. the fixed sturcture of the motor reel of electric vehicles according to claim 3 (50) is characterized in that,

Said snap openings (204) at said axletree support (18L, 18R, 46L, 46R) is formed with the recess (228a, 228b) chimeric with said extension (224a, 224b).

5. the fixed sturcture of the motor reel of electric vehicles according to claim 1 (50) is characterized in that,

Said motor reel (50) is a solid axle, and said motor reel (50) is provided with through hole (144), and the distribution (148) that this through hole (144) feeds to said connecting element (110) extension passes through.

6. the fixed sturcture of the motor reel of electric vehicles according to claim 5 (50) is characterized in that,

The distribution outlet (152) of said through hole (144) is arranged on the upside of the vehicle body above-below direction of said motor reel (50), and the distribution inlet (150) of said through hole (144) is arranged on the downside of the vehicle body above-below direction of said motor reel (50).

7. the fixed sturcture of the motor reel of electric vehicles according to claim 6 (50) is characterized in that,

In said a pair of fastening (120L, 122L, 120R, 122R) of said fastening position (118L, 118R), the said fastening face of a side that is provided with the distribution outlet (152) of said through hole (144) is provided with the mark that location confirmation is used.