WO2020067268A1 - Electric vehicle - Google Patents
Electric vehicle Download PDFInfo
- Publication number
- WO2020067268A1 WO2020067268A1 PCT/JP2019/037817 JP2019037817W WO2020067268A1 WO 2020067268 A1 WO2020067268 A1 WO 2020067268A1 JP 2019037817 W JP2019037817 W JP 2019037817W WO 2020067268 A1 WO2020067268 A1 WO 2020067268A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- motor
- electric vehicle
- swing arm
- breather tube
- rear wheel
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
- B62K11/02—Frames
- B62K11/10—Frames characterised by the engine being over or beside driven rear wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
- B62K25/12—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg
- B62K25/14—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with single arm on each fork leg
- B62K25/20—Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with single arm on each fork leg for rear wheel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/02—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of unchangeable ratio
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M7/00—Motorcycles characterised by position of motor or engine
- B62M7/12—Motorcycles characterised by position of motor or engine with the engine beside or within the driven wheel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K2202/00—Motorised scooters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K2204/00—Adaptations for driving cycles by electric motor
Definitions
- the present invention relates to an electric vehicle in which a motor and a speed reducer are arranged on a swing arm pivotally supported by a pivot shaft.
- Japanese Patent No. 5559939 discloses a vehicle body frame, a pivot shaft provided on the vehicle body frame, a swing arm having one end pivotally supported by the pivot shaft, and a rear wheel supported by the other end of the swing arm.
- An electric vehicle including a motor arranged inside a swing arm and driving a rear wheel, and a reduction gear transmitting the driving force of the motor to the rear wheel is disclosed.
- the reduction gear is accommodated in a gear case (reduction gear accommodation part) provided in the swing arm, and a breather hose (breather tube) extends from the gear case.
- the breather hose is arranged around the gear case so as to open downward.
- the breather tube removes mist-like lubrication oil when the lubrication oil used for the reduction gear evaporates It is provided to reduce the internal pressure by discharging the contained gas to the outside.
- the breather tube since the breather tube is exposed outside, when the gas is exhausted to the outside, when the gas is cooled and liquefied, the liquefied lubricating oil is discharged from the opening to the outside. As a result, there is a concern that the electric vehicle and the like may become dirty.
- a vehicle body frame a pivot shaft provided on the vehicle body frame, a swing arm having one end pivotally supported by the pivot shaft and the other end supporting a rear wheel, and the swing arm.
- An electric vehicle comprising: a motor that drives the rear wheel; and a speed reducer that transmits a driving force of the motor to the rear wheel, wherein the speed reducer is provided on the swing arm and houses the speed reducer.
- a breather tube extending from the speed reducer housing portion, one end of the breather tube communicates with the speed reducer housing portion, and the other end of the breather tube extends above the swing arm. And is disposed on a part of the electric vehicle that can swing with the swing arm.
- the lubricating oil liquefied in the breather tube returns (falls) to the reduction gear housing via one end of the breather tube.
- the liquefied lubricating oil is not discharged to the outside, so that the electric vehicle or the like can be prevented from becoming dirty.
- FIG. 2 is a left side view of the electric vehicle according to the embodiment.
- FIG. 2 is a perspective view of the vicinity of rear wheels of the electric vehicle in FIG. 1 as viewed from the rear left.
- FIG. 3 is a left side view in a state where a swing arm cover of FIGS. 1 and 2 is removed.
- FIG. 4 is a left side view of a state where a left rotor support portion of FIG. 3 is removed.
- FIG. 5 is a sectional view taken along line VV in FIG. 3.
- FIG. 4 is a right side view showing a swing arm and the like cut away. It is a bottom view around the front end part of a swing arm. It is a left view which showed the reduction gear accommodating part.
- It is a perspective view of a swing arm including a reduction gear accommodation part, a brake mechanism, and a breather tube.
- FIG. 1 is a left side view of an electric vehicle 10 according to the present embodiment.
- front and rear, left and right, and up and down directions will be described according to the direction seen by the occupant sitting on the seat 12 of the electric vehicle 10.
- components arranged on a left and right side may be described with a letter "L” for a component on the left and "R” for a component on the right.
- the electric vehicle 10 is an electric scooter having a floor portion 14 with a low floor, and runs by rotating and driving the rear wheel 16 with the driving force of a motor 20 built in a swing arm 18 that supports the rear wheel 16.
- the electric vehicle 10 according to the present embodiment is not limited to the electric scooter of FIG. 1, and can be applied to various electric saddle-ride type vehicles driven by the motor 20. In the following description, a scooter-type electric vehicle 10 will be described.
- the electric vehicle 10 has a vehicle body frame 22 and a vehicle body cover 24 made of synthetic resin that covers the vehicle body frame 22.
- the vehicle body frame 22 includes a head pipe 26 at a front end, a down pipe 28 extending obliquely rearward and downward from the head pipe 26, a pair of left and right under frame parts 30L and 30R extending rearward from a rear end of the down pipe 28, and an under frame. And side frame portions 32L and 32R extending obliquely rearward and upward from the rear ends of the portions 30L and 30R.
- the side frame portions 32L, 32R include rising portions 34L, 34R extending diagonally upward and rearward from the pair of left and right underframe portions 30L, 30R, and rear frames 36L extending rearward from the pair of left and right rising portions 34L, 34R. 36R.
- the rear ends of the pair of left and right rear frames 36L, 36R are connected by a tail pipe portion 38.
- Front forks 40L and 40R are attached to the head pipe 26 so as to be steerable.
- a handle 44 is attached to the upper portions of the front forks 40L and 40R via a steering stem 42.
- a front wheel 46 is attached to lower ends of the front forks 40L and 40R.
- a front fender 48 that covers the front wheel 46 from above is attached to the front forks 40L and 40R.
- connection support portion 50 including a pivot bracket 50a is provided between the under frame portions 30L and 30R and the side frame portions 32L and 32R.
- the connection support 50 supports a pivot shaft 54 extending in the left-right direction (vehicle width direction) of the electric vehicle 10.
- a front end (one end) of the swing arm 18 is supported by the pivot shaft 54.
- the swing arm 18 extends from the pivot shaft 54 to the left of the rear wheel 16 along the front-rear direction of the electric vehicle 10.
- the rear end (the other end) of the swing arm 18 supports the rear wheel 16.
- the swing arm 18 incorporates the motor 20 so that the motor 20 is disposed on the left side of the rear wheel 16. Therefore, the swing arm 18 is configured as a swing type power unit.
- a rear cushion 56 is connected between the rear end of the swing arm 18 and the left rear frame 36L.
- a rear fender 58 that covers the rear wheel 16 from above is attached to the rear frames 36L and 36R. Further, another fender 60 that directly covers the rear wheel 16 from above between the rear fender 58 and the rear wheel 16 and that can swing with the swing arm 18 is attached to the swing arm 18.
- the rear frames 36L and 36R support the seat 12 on which the occupant sits from below.
- a battery 62 of the electric vehicle 10 is disposed in a space between the pair of right and left rising portions 34L and 34R between the seat 12 and the pivot shaft 54.
- the battery 62 is supported by a pair of left and right rising portions 34L, 34R and rear frames 36L, 36R, and a pipe 64 connecting the rising portions 34L, 34R at the front.
- a PCU (power control unit) 66 as an electronic component supported by the left and right rising portions 34L and 34R is supported at a position in front of the rear wheel 16 and obliquely behind the battery 62.
- the PCU 66 includes an inverter and the like, and converts, for example, DC power supplied from the battery 62 to AC power, and supplies the converted AC power to the motor 20.
- the PCU 66 converts the AC power generated by the motor 20 into DC power and charges the battery 62.
- the locations of the battery 62 and the PCU 66 shown in FIG. 1 are merely examples, and may be located at other locations in the electric vehicle 10.
- the battery 62 may be arranged in a space between the pair of left and right underframe portions 30L and 30R.
- the vehicle body cover 24 is a cover that covers the vehicle body frame 22 and the like, and includes a front cover 68, a handle cover 70, a leg shield 72, floor side covers 74L and 74R, a seat lower cover 76, rear side covers 78L and 78R, and the like.
- the front cover 68 covers the front end of the body frame 22 such as the head pipe 26 from the front.
- the handle cover 70 covers the left and right central portions of the handle 44 above the front cover 68.
- the leg shield 72 is connected to the front cover 68 and covers the head pipe 26 and the down pipe 28 from behind.
- the seat lower cover 76 covers the space below the seat 12 from the front.
- the pair of left and right floor side covers 74L and 74R are connected to the leg shield 72 and the seat lower cover 76, and cover the pair of left and right underframe portions 30L and 30R from both left and right sides.
- the rear side covers 78L and 78R are connected to the rear edge of the seat lower cover 76, and cover the PCU 66 and the like from both left and right sides.
- a main stand 80 is provided beside the swing arm 18.
- a shaft 82 of the main stand 80 is provided below the swing arm 18, and the main stand 80 is moved so that a part of the main stand 80 is housed in a recess 84 in which the left side of the swing arm 18 is recessed. Will be arranged.
- a side stand 86 is disposed near the left rising portion 34L.
- the first configuration is that the motor 20 is configured as an assembly (unit) in which a stator 90 and a rotor 92 as a driving unit of the motor 20 are incorporated in a motor case 94, and the motor 20 is housed in the swing arm 18. , Constituting a swing type power unit.
- a stator 90 and a rotor 92 as a driving unit of the motor 20 are incorporated in a motor case 94, and the motor 20 is housed in the swing arm 18.
- Constituting a swing type power unit In other words, simply mounting the completed motor 20 in which the stator 90 and the rotor 92 are housed and the motor shaft 96 is exposed from the motor case 94 in the swing arm 18, attaches the motor 20 to the swing arm 18. The work is completed.
- the configuration of the swing arm 18 that houses the motor 20 will be described in more detail.
- the swing arm 18 has a swing arm body 98.
- the swing arm body 98 is a hollow member, and has one end 98a extending in the vehicle width direction in a space near the pivot shaft 54 in front of the rear wheel 16, and a connection extending rearward from the left side of the one end 98a.
- One end 98a of the swing arm body 98 constitutes the front end of the swing arm 18 and is supported by the pivot shaft 54.
- the pivot shaft 54 is supported by the vehicle body frame 22 via the connection support portion 50.
- the connection supporting portion 50 extends in the vehicle width direction and connects the pair of left and right rising portions 34L and 34R, and extends rearward from the pipe 50b.
- four pivot brackets 50a that support the pivot shaft 54.
- Two protrusions 98 e extend forward from both left and right sides of one end 98 a of the swing arm body 98 toward the pivot shaft 54.
- the two protrusions 98e are supported by the pivot shaft 54 via two bearings 100 provided at both ends of the pivot shaft 54 in the vehicle width direction.
- the connecting portion 98b of the swing arm body 98 gradually expands from the front to the rear as viewed from the side in FIGS. 1, 3, and 4.
- the motor housing 98 c and the other end 98 d of the swing arm main body 98 constitute a rear end of the swing arm 18.
- the motor accommodating portion 98c is formed in a substantially circular shape in a side view in FIGS. 1, 3 and 4, and is formed so as to be recessed inward in the vehicle width direction in a sectional view in FIG.
- the rear cushion 56 is connected to the other end 98d of the swing arm body 98.
- the rear part of the connecting part 98b and the motor housing part 98c are open to the left. This opening is opened to a size that can receive the motor 20 and is covered with the swing arm cover 102 from the left.
- the swing arm cover 102 is attached to the swing arm body 98 by a plurality of bolts 104. 3 to 5 show a state in which the swing arm cover 102 is removed from the swing arm body 98.
- the motor 20 accommodated in the motor accommodating portion 98c is, for example, a three-phase AC motor, and includes a stator 90, a rotor 92, and a motor case 94 accommodating the stator 90 and the rotor 92 therein.
- the motor case 94 is an outer box of the motor case 94, and serves as a stator support portion 94a as a cylindrical housing extending in the vehicle width direction and a rotor cover for closing two openings at both ends in the vehicle width direction of the stator support portion 94a. And left and right rotor support portions 94L and 94R.
- the stator 90 has a cylindrical stator core 90a made of a laminated steel plate.
- a plurality of slots 90b are formed in the stator core 90a at predetermined angular intervals in the circumferential direction of the motor 20.
- a coil 90c is wound around the plurality of slots 90b.
- the stator support portion 94a is a stator holder that supports the outer peripheral surface of the stator core 90a, that is, the radial outer surface of the motor 20 in the stator 90 in a fixed state. Thereby, the mechanical strength of the stator core 90a made of the laminated steel sheet is reinforced.
- the stator core 90a is fixed to the stator support 94a by shrink fitting, for example.
- a rotor 92 is disposed radially inward of the stator 90.
- the rotor 92 has a cylindrical rotor core 92a made of a laminated steel plate.
- a plurality of slots 92b are formed in the rotor core 92a in the circumferential direction of the motor 20 at predetermined angular intervals.
- Magnets 92c are arranged in the plurality of slots 92b.
- a motor shaft 96 extends through the center of the rotor core 92a in the vehicle width direction. The motor shaft 96 extends in the vehicle width direction through an opening formed at the center of the two rotor support portions 94L and 94R.
- the motor shaft 96 is supported by two rotor supporting portions 94L and 94R via bearings 106L and 106R provided in the two openings. That is, the rotor 92 is rotatably supported by the two rotor supporting portions 94L and 94R via the motor shaft 96 and the two bearings 106L and 106R.
- the left end portion 96L of the motor shaft 96 projects outward (leftward) in the vehicle width direction from the left rotor support portion 94L.
- a portion where the left end portion 96L of the motor shaft 96 projects is formed as a concave portion 108 that is recessed inward in the vehicle width direction.
- the recess 108 is covered by a cover member 110 from the left. Therefore, even if the swing arm cover 102 is removed from the swing arm body 98, the left end portion 96L of the motor shaft 96 is not exposed (see FIGS. 3 and 5).
- a rotation angle detection unit 112 for detecting the rotation angles of the rotor 92 and the motor shaft 96 is provided in an internal space formed by the recess 108 and the cover member 110.
- the rotation angle detector 112 is a resolver, which is a resolver rotor 112a attached to the left end 96L of the motor shaft 96, and a resolver stator 112b fixed to the left rotor support 94L so as to face the resolver rotor 112a. Having. Since the resolver is well known, a detailed description thereof will be omitted.
- the right end (tip) 96R of the motor shaft 96 protrudes inward (rightward) in the vehicle width direction from the right rotor support 94R so as to be directed to the motor housing 98c of the swing arm body 98. Therefore, the right rotor support 94R and the right portion of the stator support 94a are opposed to the motor housing 98c.
- a speed reducer housing 116 for housing a speed reducer 114 described later is provided on the right side of the motor housing 98c of the swing arm body 98.
- the right end 96R of the motor shaft 96 is inserted into the reduction gear housing 116 and is supported by a bearing 118 provided in the reduction gear housing 116.
- the right end portion 96R of the motor shaft 96 is splined.
- a motor-side gear 120 (gear) for rotating an axle (output shaft) 16a of the rear wheel 16 is inserted into the splined portion.
- a washer 122 is interposed between the motor-side gear 120 and the bearing 118 to prevent the motor-side gear 120 from coming off.
- the washer 122 is desirably a low-pressure press-fitted washer with respect to the motor shaft 96 so that the motor 20 can be exchanged into the motor accommodating portion 98c. Since the washer 122 has a low press fit, the assembling is easy.
- a plurality of screw holes (first through hole, second through hole) 124 extending in the vehicle width direction are formed at predetermined angular intervals in the circumferential direction of the motor 20 in the two rotor support portions 94L, 94R and the stator support portion 94a. Have been.
- a plurality of bolts 126 and 128 are screwed into these screw holes 124. As shown in FIGS. 3 to 5, in this embodiment, nine screw holes 124 are formed.
- a bolt 126 having a short length is screwed into the three screw holes 124.
- the short bolt 126 is used for fixing the rotor supports 94L and 94R to the stator support 94a. As shown in FIG. 5, the short bolt 126 is inserted into the screw hole 124 from the left side, thereby fastening and fixing the rotor support 94L and the stator support 94a to the rotor support 94R.
- long bolts (fixing means) 128 are screwed into the other six screw holes 124.
- the long bolt 128 is used for fixing the motor case 94 including the two rotor supports 94L and 94R and the stator support 94a to the motor housing 98c. That is, the long bolt 128 is inserted into the screw hole 124 from the left side, and screwed into the bolt hole 130 provided in the motor housing 98c, so that the rotor support 94L, the stator support 94a, and the rotor support The 94R is fastened and fixed to the motor housing 98c.
- the number and position of the screw holes 124 and the types and numbers of the bolts 126 and 128 to be screwed into the respective screw holes 124 are arbitrary, and the design may be changed according to the specifications of the swing arm 18 and the motor 20 and the like. Of course it is good.
- the motor 20 is attached to the motor housing 98c of the swing arm body 98.
- the motor 20 includes a motor case 94 in which the stator 90 and the rotor 92 are housed in a motor case 94, and a right end portion 96R of the motor shaft 96 protrudes from the right rotor support portion 94R.
- the bolt 126 having a short length fixes the rotor support portions 94L and 94R and the stator support portion 94a in a state of permanent fastening, while the long bolt 128 may be temporarily fastened.
- the right end portion 96R of the motor shaft 96 is inserted into the reduction gear accommodating portion 116 and is supported by the bearing 118.
- the right end portion 96R of the motor 20 may be supported by the bearing 118 in a state where the motor side gear 120 and the washer 122 are fitted into the splined portion on the right end portion 96R side of the motor shaft 96.
- the motor case 94 is fixed to the motor housing 98c.
- the motor 20 is housed in the motor housing 98c, and the work of attaching the motor 20 to the swing arm 18 is completed.
- the second configuration is a configuration for efficiently cooling the motor 20 by exposing a part of the motor 20 housed in the motor housing portion 98c to the outside.
- the swing arm cover 102 has an exposed portion 132 as an opening for exposing a part of the motor case 94 to the outside.
- the exposed portion 132 is directed from the front to the rear at a position corresponding to the motor housing portion 98c of the swing arm cover 102 so as to expose the rear portion of the motor case 94 to the outside.
- the exposed portion 132 is opened so as to have a constant width in the vehicle width direction, and exposes the motor case 94 to the outside in the vehicle width direction.
- the arc-shaped exposed portion 132 becomes wider in the vertical direction as going from the front to the rear, and the exposed area gradually increases.
- the swing arm cover 102 has a circular portion 102a that covers the central portion of the motor case 94, that is, the motor shaft 96 and the rotation angle detector 112 (see FIG. 5) from the left side when viewed from the side in FIG.
- the circular portion 102a and the rear end portion 102b of the swing arm cover 102 are connected by a connecting portion 102c extending in the front-rear direction.
- the exposed portion 132 is provided so as to correspond to the slot 90b around which the coil 90c is wound.
- the exposed portion 132 exposes a part of the motor case 94 to the outside so that the plurality of bolts 126 and 128 are covered by the swing arm cover 102. .
- the motor 20 is a three-phase AC motor. As described later, the motor 20 is driven to rotate by supplying AC power to the coil 90c from the PCU 66 via the power supply line 134 as a three-phase line. In this case, the power supply line 134 is drawn forward from the motor 20. Therefore, the swing arm cover 102 and the swing arm body 98 cover the power supply line 134 from the front and side.
- the third configuration relates to the routing of the power supply line 134 from the motor 20 and the routing of the communication line 136 from the rotation angle detection unit 112.
- a through hole 138 that opens forward is formed at one end 98 a of the swing arm main body 98 at a location in front of the rear wheel 16.
- the through hole 138 is formed at one end 98 a of the swing arm body 98 above the pivot shaft 54 and at a location between the two bearings 100.
- the power supply line 134 is a rigid three-phase wire harness as shown in FIGS. 3, 4, 6, and 7, and is routed inside the swing arm 18 along the internal shape of the swing arm 18.
- the power supply line 134 extends forward from the motor 20 inside the swing arm 18, bends inward in the vehicle width direction at one end 98 a of the swing arm body 98, and extends forward from the through hole 138 to the front of the swing arm 18.
- the power supply line 134 extends forward of the swing arm 18 through the through hole 138 between the two bearings 100 above the pivot shaft 54.
- the power supply line 134 drawn out from the through hole 138 is routed above the pivot shaft 54 and connected to the PCU 66 disposed diagonally below and behind the battery 62. Therefore, the PCU 66 and the motor 20 exchange AC power via the power supply line 134.
- a communication line 136 is drawn from the rotation angle detection unit 112.
- the communication line 136 is a harness having lower rigidity than the power supply line 134. Therefore, the communication line 136 is easier to route than the power supply line 134, and extends forward from the rotation angle detection unit 112 in the swing arm 18 so as to crawl along the power supply line 134. It is bent inward in the vehicle width direction at the portion 98a, and extends forward of the swing arm 18 from the through hole 138. Therefore, the communication line 136 also extends forward of the swing arm 18 through the through hole 138 between the two bearings 100 above the pivot shaft 54. Then, the communication line 136 drawn from the through hole 138 is routed above the pivot shaft 54 and connected to the PCU 66. Therefore, the PCU 66 and the rotation angle detection unit 112 can transmit and receive the detection results of the rotation angles of the rotor 92 and the motor shaft 96 via the communication line 136.
- the power supply line 134 and the communication line 136 are bound by a binding member 140 such as a grommet, and the stay 142 connects the inside of the connecting portion 98 b. (See FIGS. 6 and 7).
- FIGS. 6 and 7 show, as an example, a case where the hole 144 is formed at a position near the through hole 138 on the bottom of the swing arm body 98.
- the strength of the swing arm body 98 is provided between the through hole 138 and the motor accommodating portion 98c, specifically, at a position from the rear portion of the connecting portion 98b to the motor accommodating portion 98c.
- a plurality of ribs 146 for reinforcement are provided.
- the swing arm 18 is further provided with a speed reducer accommodating portion 116 that is attached to the inside of the swing arm body 98 in the vehicle width direction and houses the speed reducer 114.
- a brake mechanism 150 is provided inside the reduction gear housing 116 in the vehicle width direction and inside the wheel 16 b of the rear wheel 16. Therefore, around the rear wheel 16, the motor 20, the speed reducer 114, and the brake mechanism 150 are sequentially arranged from the left side to the right side in the vehicle width direction.
- a gear case cover 154 is fixed to the right side of the motor housing portion 98c of the swing arm body 98 by bolts 152.
- the internal space formed by the motor housing 98c and the gear case cover 154 is configured as the reduction gear housing 116.
- the speed reducer 114 is mounted on the motor shaft 96, an intermediate shaft 156 disposed behind the motor shaft 96 and extending in the vehicle width direction, mounted on the intermediate shaft 156, and meshed with the motor gear 120. And an output gear 162 mounted on the axle 16a of the rear wheel 16 disposed behind the intermediate shaft 156 and meshing with a gear 160 formed on the left side of the intermediate shaft 156 in the vehicle width direction. And
- the right end of the intermediate shaft 156 is supported by a bearing 164R disposed on the gear case cover 154.
- the left end of the intermediate shaft 156 is supported by a bearing 164L disposed on the right side of the motor housing 98c.
- the left end of the axle 16a is supported by a bearing 166L disposed on the right side of the motor housing 98c.
- the right end of the axle 16a is exposed to the outside through the gear case cover 154 and is connected to the wheel 16b of the rear wheel 16.
- the right end side of the axle 16a is supported by a bearing 166R arranged on the gear case cover 154.
- the speed reducer 114 reduces the rotation speed of the motor shaft 96 by the intermediate gear 158, and drives the axle 16a and the rear wheel 16 to rotate.
- the brake mechanism 150 is a drum brake, and includes a drum 150a provided inside the wheel 16b, two shoes 150b arranged on both sides of the axle 16a, and a lining arranged on the drum 150a side of the shoe 150b. 150c.
- the lining 150c of the two shoes 150b presses the drum 150a, respectively.
- the rotation of the wheel 16b (rear wheel 16) on which the drum 150a is mounted can be braked. Since the drum brake is well known, a detailed description thereof will be omitted.
- the swing arm 18 is provided with a breather tube 148 extending from the reduction gear housing 116 (see FIGS. 2 to 4, 8, and 9).
- the breather tube 148 is provided above the reduction gear housing 116. Therefore, the breather tube 148 is disposed between the motor 20 and the rear wheel 16 as in the case of the reduction gear housing 116.
- One end 148a which is the inlet of the breather tube 148, is fixed to the gear case cover 154 and communicates with the reduction gear housing 116.
- the other end 148b which is the outlet of the breather tube 148, is disposed above the swing arm 18 on a fender 60 that can swing together with the swing arm 18.
- the other end 148b of the breather tube 148 is fixed to the fender 60 by inserting the other end 148b of the breather tube 148 into a cylindrical fixing portion 168 provided on the left side surface of the fender 60. Therefore, the breather tube 148 is arranged with one end 148a (entrance) directed downward and the other end 148b (exit) directed upward.
- an upper wall 170 extending in the front-rear direction is formed above the reduction gear housing 116 on the right side of the motor housing 98 c.
- the breather tube 148 extends upward from the reduction gear housing 116, bends forward along the upper wall 170, bends upward at the front end of the upper wall 170, and extends to the fixing portion 168 of the fender 60.
- the upper wall 170 is inclined such that the other end 148b of the breather tube 148 is higher than the one end 148a. Therefore, in the breather tube 148, the intermediate portion 148c disposed on the upper wall 170 is inclined and disposed on the upper wall 170 so as to gradually increase toward the front.
- the upper wall 170 is provided with a fixing portion 172 such as a projection for projecting upward to fix the breather tube 148 to the upper wall 170 and the right side of the motor accommodating portion 98c.
- a plate member 174 extending vertically and in the front-rear direction is integrally formed on the front side surface of the fender 60.
- the other end 148b (outlet) of the breather tube 148 is disposed on the left side of the plate member 174. Therefore, the plate member 174 is disposed between the breather tube 148 and the rear wheel 16.
- one end 148a (entrance) of the breather tube 148 is disposed between the motor shaft 96 and the axle 16a, more specifically, between the intermediate shaft 156 and the axle 16a.
- the vehicle body frame 22 a pivot shaft 54 provided on the vehicle body frame 22, a front end (one end) is pivotally supported by the pivot shaft 54, and a rear end (the other end).
- a swing arm 18 that supports the rear wheel 16
- a motor 20 that is disposed on the swing arm 18 and drives the rear wheel 16.
- the electric vehicle 10 further includes a motor housing 98 c provided on the swing arm 18 and housing the motor 20.
- the motor 20 includes a stator 90, a rotor 92, and a motor case 94 that houses the stator 90 in a fixed state therein, while rotatably houses the rotor 92 therein.
- the portion facing the portion 98c is fixed to the motor housing 98c.
- the motor 20 is arranged on the swing arm 18 only by fixing the motor case 94 in which the stator 90 and the rotor 92 are accommodated to the motor accommodating portion 98c. Can be improved.
- a screw hole (first through hole) 124 is formed in the motor case 94 so as to face the motor housing portion 98c.
- the motor case 94 has rotor support portions 94L and 94R that rotatably support the rotor 92 and a stator support portion 94a that supports the radial outer surface of the motor 20 in the stator 90.
- the stator support portion 94a and the rotor support portions 94L and 94R function as a part of the motor case 94, the number of parts of the motor 20 can be reduced.
- screw holes (second through holes) 124 are formed in the rotor support portions 94L and 94R and the stator support portion 94a so as to be directed to the motor accommodating portion 98c, and a part of the rotor support portion 94R and a part of the stator support portion 94a are formed. It is configured as an opposing portion. In this case, by inserting the bolt 128 into the screw hole 124, the facing portion is fixed to the motor housing 98c. Thus, the motor case 94 can be easily fixed to the motor housing 98c while reducing the number of parts of the motor 20.
- a motor shaft 96 projecting from the motor case 94 is supported by the rotor 92 such that a right end (tip) 96R is directed to the motor accommodating portion 98c.
- the right end 96R of the motor shaft 96 is rotatably supported by a bearing 118 provided on the side of the motor housing 98c.
- the motor shaft 96 can be favorably supported by the motor housing 98c.
- a spline process is performed on the right end portion 96R side of the motor shaft 96, and a motor-side gear (gear) 120 for driving the axle 16a of the rear wheel 16 is inserted into the spline processed portion.
- a washer 122 is provided between the motor-side gear 120 and the bearing 118 to prevent the motor from being disengaged.
- the motor-side gear 120 can be prevented from coming off the motor shaft 96.
- the electric vehicle 10 further includes a motor accommodating portion 98c provided on the swing arm 18 and accommodating the motor 20.
- the motor 20 has a motor case 94 that houses a stator 90 and a rotor 92 that are driving units of the motor 20.
- the swing arm 18 has a swing arm cover 102 provided with an exposed part 132 for exposing a part of the motor case 94 to the outside.
- the heat of the motor 20 is radiated to the outside through the exposed portion 132 provided on the swing arm cover 102.
- the motor 20 housed in the motor housing 98c of the swing arm 18 can be efficiently cooled.
- the electric vehicle 10 further includes a power supply line 134 for supplying power to the motor 20.
- the swing arm cover 102 covers the power supply line 134.
- the power supply line 134 is disposed in front of the motor 20, and the swing arm cover 102 covers the power supply line 134 from the front.
- the power supply line 134 can be protected from stepping stones and the like from the front while the electric vehicle 10 is traveling.
- the motor 20 is a three-phase AC motor
- the power supply line 134 may be a three-phase line that supplies power to the AC motor.
- the electric vehicle 10 can be suitably driven.
- the exposed part 132 exposes the rear part of the motor case 94 to the outside.
- the motor 20 can be cooled while protecting the power supply line 134 from a stepping stone or the like from the front.
- the exposed portion 132 exposes the motor case 94 to the outside in the vehicle width direction of the electric vehicle 10. Thereby, the cooling efficiency of the motor 20 can be further improved.
- the exposed portion 132 becomes wider toward the rear of the electric vehicle 10. Therefore, the cooling efficiency of the motor 20 can be improved while protecting the inside of the swing arm 18 from stepping stones or the like from the front.
- the swing arm cover 102 covers the central part of the motor case 94 in a side view. Thereby, the rotation angle detection unit 112, the motor shaft 96, and the like can be protected.
- the exposed portion 132 is formed in an arc shape in a side view. Thereby, the stator 90 constituting the motor 20 can be efficiently cooled.
- a driving portion of the motor 20 is constituted by a stator 90 fixed inside the motor case 94 and a rotor 92 rotatably supported inside the motor case 94. Therefore, in the second configuration, the stator 90 and the rotor 92 can be appropriately cooled.
- the exposed portion 132 is formed on the stator 90 in a side view, and is provided so as to correspond to the slot 90b around which the coil 90c is wound. Thereby, cooling of stator 90 can be performed more efficiently. That is, the coil 90c is a component that generates the largest amount of heat in the motor 20 because the coil 90c is energized by the power supplied from the power supply line 134. Therefore, by providing the exposed portion 132 corresponding to the coil 90c, the stator 90 can be cooled more efficiently.
- the motor 20 is housed in the motor housing 98c by fixing the motor case 94 to the motor housing 98c via a bolt (fixing means) 128.
- the exposed part 132 exposes a part of the motor case 94 to the outside so that the bolt 128 is covered by the swing arm cover 102.
- the motor 20 can be cooled while the design of the electric vehicle 10 is improved by hiding the bolt 128.
- the electric vehicle 10 further includes a motor accommodating portion 98 c that is provided on the side of the rear wheel 16 in the swing arm 18 and accommodates the motor 20, and a power supply line 134 that supplies power to the motor 20.
- a through hole 138 is formed at the front end (one end 98 a) of the swing arm 18 at a location in front of the rear wheel 16.
- the power supply line 134 extends forward from the motor 20 in the swing arm 18, bends at one end 98 a in the vehicle width direction of the electric vehicle 10, and extends from the through hole 138 to the outside of the swing arm 18.
- the power supply line 134 extends from the motor 20 through the inside of the swing arm 18 to the outside through the through hole 138 formed in the one end 98a.
- the power supply line 134 can be provided more linearly without being bent so much.
- the degree of exposure of the power supply line 134 to the outside is reduced, the number of components for protecting the power supply line 134 externally can be reduced and the appearance can be improved.
- a space above or below the swing arm 18 is secured, a space for mounting the battery 62 above the pivot shaft 54 can be secured, for example. As a result, the minimum ground clearance of the swing arm 18 can be secured.
- Two bearings 100 are provided at both ends of the pivot shaft 54 in the vehicle width direction.
- One end 98a is pivotally supported by the pivot shaft 54 via two bearings 100.
- the through hole 138 is formed at a position between the two bearings 100 at the one end 98 a, and the power supply line 134 extends to the outside of the swing arm 18 through the through hole 138 between the two bearings 100.
- the power supply line 134 is exposed to the outside in the vehicle width direction, not in the vehicle width direction.
- contact of the power supply line 134 with the road surface is avoided, so that the bank angle of the electric vehicle 10 can be secured.
- the through hole 138 is formed at a position above the pivot shaft 54 at the one end 98a, and the power supply line 134 extends outside the swing arm 18 from above the pivot shaft 54 via the through hole 138. Thereby, the minimum ground clearance of the electric vehicle 10 including the swing arm 18 can be secured.
- a rib 146 is provided between the through hole 138 in the swing arm 18 and the motor housing 98c. Thereby, the mechanical strength of the swing arm 18 can be reinforced.
- the electric vehicle 10 further includes a rotation angle detection unit 112 that is disposed on the motor 20 and detects a rotation angle of the motor 20, and a communication line 136 extending from the rotation angle detection unit 112.
- the communication line 136 extends forward from the rotation angle detection unit 112 in the swing arm 18 so as to crawl along the power supply line 134, bends inward in the vehicle width direction at one end 98 a, 18 extend outside. Thereby, the bending inside the swing arm 18 together with the power supply line 134 can be reduced, and the appearance can be improved while avoiding exposure to the outside.
- the electric vehicle 10 further includes a stay 142 for fixing the power supply line 134 to the swing arm 18 in the swing arm 18.
- the power supply line 134 linearly arranged inside the swing arm 18 can be held.
- a hole 144 for draining water is formed at the bottom of the swing arm 18.
- the liquid that has entered the swing arm 18 through the through hole 138 drops downward through the hole 144.
- the electric vehicle 10 further includes a battery 62 and a PCU (electronic component) 66 supported by the body frame 22.
- the power supply line 134 is drawn out of the through-hole 138 and connected to the PCU 66.
- the PCU 66 supplies the electric power supplied from the battery 62 to the motor 20 via the power supply line 134.
- electric power can be supplied from the PCU 66 to the motor 20 to drive the motor 20.
- the motor 20 is an AC motor
- the power supply line 134 is a three-phase line that supplies power to the AC motor
- the electric vehicle 10 includes a speed reducer 114 that transmits the driving force of the motor 20 to the rear wheel 16, a speed reducer housing 116 that is provided on the swing arm 18 and houses the speed reducer 114, A breather tube 148 extending from the storage section 116. One end 148 a of the breather tube 148 communicates with the reduction gear housing 116. The other end 148 b of the breather tube 148 is disposed above the swing arm 18 on a fender 60 (a component of the electric vehicle 10) that can swing together with the swing arm 18.
- the lubricating oil liquefied in the breather tube 148 returns to the reduction gear housing 116 via the one end 148a of the breather tube 148.
- the liquefied lubricating oil is not discharged to the outside, so that the electric vehicle 10 and the like can be prevented from being contaminated.
- the reduction gear housing 116 and the breather tube 148 are arranged between the motor 20 and the rear wheel 16. Thereby, the space between the motor 20 and the rear wheel 16 can be effectively utilized.
- the breather tube 148 is arranged along the upper wall 170 provided near the speed reducer housing 116 of the swing arm 18.
- the breather tube 148 can be cooled by the traveling wind while protecting the breather tube 148 from flying stones or the like while the electric vehicle 10 is traveling. Further, by arranging the breather tube 148 in the upper wall 170, even if the breather tube 148 flaps due to vibration during traveling, it can be prevented from contacting the rear wheel 16.
- the upper wall 170 is inclined so that the other end 148b of the breather tube 148 is higher than the one end 148a.
- the upper wall 170 is provided with a fixing portion 172 for fixing the breather tube 148 to the swing arm 18 and the upper wall 170. Thereby, the breather tube 148 can be prevented from being caught in the rear wheel 16.
- the breather tube 148 is arranged with the other end 148b, which is the outlet, directed upward. Accordingly, it is possible to reliably prevent the lubricating oil from being discharged from the outlet of the breather tube 148 to the outside.
- the breather tube 148 is disposed with the one end 148a, which is the entrance, directed downward.
- the lubricating oil liquefied in the breather tube 148 can be reliably returned to the reduction gear housing 116.
- the other end 148b which is the outlet of the breather tube 148, is disposed on the side surface of the fender 60.
- the other end 148b of the breather tube 148 can be easily fixed.
- a plate member 174 is disposed between the breather tube 148 and the rear wheel 16.
- the plate member 174 is formed integrally with the fender 60. Thereby, the plate member 174 can be easily provided.
- one end 148a which is an inlet of the breather tube 148, is provided between a motor shaft 96 of the motor 20 and an axle (output shaft) 16a that transmits a driving force from the motor shaft 96 to the rear wheel 16.
- an axle (output shaft) 16a that transmits a driving force from the motor shaft 96 to the rear wheel 16.
- the inlet of the breather tube 148 is provided between the axle 16a and the intermediate shaft 156 of the speed reducer 114 that transmits the driving force from the motor shaft 96 to the axle 16a.
- the gas containing the mist-like lubricating oil can be more efficiently discharged to the outside.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- General Engineering & Computer Science (AREA)
- Axle Suspensions And Sidecars For Cycles (AREA)
- General Details Of Gearings (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Automatic Cycles, And Cycles In General (AREA)
Abstract
Description
図1は、本実施形態に係る電動車両10の左側面図である。なお、以下の説明では、電動車両10のシート12に着座した乗員の見た方向に従って、前後、左右及び上下の方向を説明する。また、電動車両10において、左右一対に配設される構成要素については、左側の構成要素については「L」、右側の構成要素については「R」の文字を付けて説明する場合がある。 [1. Schematic configuration of
FIG. 1 is a left side view of an
次に、本実施形態に係る電動車両10の特徴的な構成(第1~第4の構成)について、図1~図9を参照しながら説明する。 [2. Characteristic configuration of the present embodiment]
Next, a characteristic configuration (first to fourth configurations) of the
第1の構成は、モータ20の駆動部としてのステータ90及びロータ92をモータケース94に組み込んだ組立体(ユニット)として該モータ20が構成され、モータ20をスイングアーム18内に収容することで、スイング式のパワーユニットを構成するものである。すなわち、ステータ90及びロータ92が収容され、且つ、モータケース94からモータ軸96が露出している完成品のモータ20を、スイングアーム18内に収容するだけで、スイングアーム18に対するモータ20の取付作業が完了するものである。ここで、モータ20が収容されているスイングアーム18の構成について、より詳しく説明する。 <2.1 First configuration>
The first configuration is that the
第2の構成は、モータ収容部98cに収容されたモータ20の一部を外部に露出させることで、モータ20を効率的に冷却させるための構成である。 <2.2 Second Configuration>
The second configuration is a configuration for efficiently cooling the
第3の構成は、モータ20からの給電線134の引き回し、及び、回転角度検出部112からの通信線136の引き回しに関する構成である。 <2.3 Third Configuration>
The third configuration relates to the routing of the
第4の構成は、減速機収容部116内の温度上昇に起因して、減速機収容部116内の圧力(内圧)が上昇することにより、減速機114に用いられる潤滑油が揮発した際に、霧状の潤滑油を含む気体を外部に排出して内圧を低下させるためのブリーザチューブ148に関する構成である。ここで、減速機収容部116周りの構成について説明する。 <2.4 Fourth configuration>
In the fourth configuration, when the lubricating oil used for the
以上説明した本実施形態に係る電動車両10の効果について、第1~第4の構成の順に説明する。 [3. Effects of the present embodiment]
The effects of the
そして、第1の構成として、電動車両10は、スイングアーム18に設けられ、モータ20を収容するモータ収容部98cをさらに備える。モータ20は、ステータ90と、ロータ92と、ステータ90を固定状態で内部に収容し、一方で、ロータ92を回転自在に内部に収容するモータケース94とを有し、モータケース94のモータ収容部98cとの対向部分をモータ収容部98cに固定する。 <3.1 Effect of First Configuration>
As a first configuration, the
第2の構成において、電動車両10は、スイングアーム18に設けられ、モータ20を収容するモータ収容部98cをさらに備える。モータ20は、該モータ20の駆動部であるステータ90及びロータ92を収容するモータケース94を有する。スイングアーム18は、モータケース94の一部を外部に露出させる露出部132を設けたスイングアームカバー102を有する。 <3.2 Effect of Second Configuration>
In the second configuration, the
第3の構成において、電動車両10は、スイングアーム18内の後輪16の側方に設けられ、モータ20を収容するモータ収容部98cと、モータ20に給電する給電線134とをさらに備える。この場合、スイングアーム18の前端部(一端部98a)における後輪16の前方の箇所には、貫通孔138が形成される。給電線134は、スイングアーム18内でモータ20から前方に延び、一端部98aで電動車両10の車幅方向の内側に曲がり、貫通孔138からスイングアーム18の外部に延出される。 <3.3 Effect of Third Configuration>
In the third configuration, the
第4の構成において、電動車両10は、モータ20の駆動力を後輪16に伝達する減速機114と、スイングアーム18に設けられ、減速機114を収容する減速機収容部116と、減速機収容部116から延出するブリーザチューブ148とを備える。ブリーザチューブ148の一端部148aは、減速機収容部116に連通する。ブリーザチューブ148の他端部148bは、スイングアーム18の上方で、スイングアーム18と共に揺動可能なフェンダ60(電動車両10の部品)に配置されている。 <3.4 Effect of Fourth Configuration>
In the fourth configuration, the
Claims (12)
- 車体フレーム(22)と、前記車体フレーム(22)に設けられたピボット軸(54)と、一端部が前記ピボット軸(54)に軸支され、他端部が後輪(16)を支持するスイングアーム(18)と、前記スイングアーム(18)に配置され、前記後輪(16)を駆動するモータ(20)と、前記モータ(20)の駆動力を前記後輪(16)に伝達する減速機(114)とを備える電動車両(10)において、
前記スイングアーム(18)に設けられ、前記減速機(114)を収容する減速機収容部(116)と、前記減速機収容部(116)から延出するブリーザチューブ(148)とをさらに備え、
前記ブリーザチューブ(148)の一端部(148a)は、前記減速機収容部(116)に連通し、
前記ブリーザチューブ(148)の他端部(148b)は、前記スイングアーム(18)の上方で、前記スイングアーム(18)と共に揺動可能な前記電動車両(10)の部品(60)に配置されている、電動車両(10)。 A vehicle body frame (22), a pivot shaft (54) provided on the vehicle body frame (22), one end of which is pivotally supported by the pivot shaft (54), and the other end of which supports the rear wheel (16). A swing arm (18), a motor (20) disposed on the swing arm (18) for driving the rear wheel (16), and transmitting a driving force of the motor (20) to the rear wheel (16). In an electric vehicle (10) including a speed reducer (114),
A speed reducer housing (116) provided on the swing arm (18) and housing the speed reducer (114); and a breather tube (148) extending from the speed reducer housing (116).
One end (148a) of the breather tube (148) communicates with the reduction gear housing (116),
The other end (148b) of the breather tube (148) is disposed above the swing arm (18) on a component (60) of the electric vehicle (10) that can swing together with the swing arm (18). The electric vehicle (10). - 請求項1記載の電動車両(10)において、
前記減速機収容部(116)及び前記ブリーザチューブ(148)は、前記モータ(20)と前記後輪(16)との間に配置されている、電動車両(10)。 The electric vehicle (10) according to claim 1,
The electric vehicle (10), wherein the reduction gear housing (116) and the breather tube (148) are arranged between the motor (20) and the rear wheel (16). - 請求項2記載の電動車両(10)において、
前記ブリーザチューブ(148)は、前記スイングアーム(18)の前記減速機収容部(116)の近傍に形成された上壁部(170)に沿って配置されている、電動車両(10)。 The electric vehicle (10) according to claim 2,
The electric vehicle (10), wherein the breather tube (148) is disposed along an upper wall (170) formed near the speed reducer housing (116) of the swing arm (18). - 請求項3記載の電動車両(10)において、
前記上壁部(170)は、前記ブリーザチューブ(148)の他端部(148b)が一端部(148a)よりも高くなるように傾斜している、電動車両(10)。 The electric vehicle (10) according to claim 3,
The electric vehicle (10), wherein the upper wall (170) is inclined such that the other end (148b) of the breather tube (148) is higher than one end (148a). - 請求項3又は4記載の電動車両(10)において、
前記上壁部(170)には、前記ブリーザチューブ(148)を前記スイングアーム(18)及び前記上壁部(170)に固定するための固定部(172)が設けられている、電動車両(10)。 The electric vehicle (10) according to claim 3 or 4,
The electric vehicle () includes a fixing portion (172) for fixing the breather tube (148) to the swing arm (18) and the upper wall portion (170) on the upper wall portion (170). 10). - 請求項1~5のいずれか1項に記載の電動車両(10)において、
前記ブリーザチューブ(148)は、該ブリーザチューブ(148)の出口である前記他端部(148b)を上向きに指向した状態で配置されている、電動車両(10)。 The electric vehicle (10) according to any one of claims 1 to 5,
The electric vehicle (10), wherein the breather tube (148) is arranged so that the other end (148b), which is an outlet of the breather tube (148), faces upward. - 請求項1~6のいずれか1項に記載の電動車両(10)において、
前記ブリーザチューブ(148)は、該ブリーザチューブ(148)の入口である前記一端部(148a)を下向きに指向した状態で配置されている、電動車両(10)。 The electric vehicle (10) according to any one of claims 1 to 6,
The electric vehicle (10), wherein the breather tube (148) is disposed with the one end (148a) serving as an inlet of the breather tube (148) facing downward. - 請求項1~7のいずれか1項に記載の電動車両(10)において、
前記部品(60)は、前記後輪(16)のフェンダであり、
前記ブリーザチューブ(148)の出口である前記他端部(148b)は、前記フェンダ(60)の側面に配置されている、電動車両(10)。 The electric vehicle (10) according to any one of claims 1 to 7,
The part (60) is a fender of the rear wheel (16);
The electric vehicle (10), wherein the other end (148b) serving as an outlet of the breather tube (148) is disposed on a side surface of the fender (60). - 請求項8記載の電動車両(10)において、
前記ブリーザチューブ(148)と前記後輪(16)の間には、板部材(174)が配置されている、電動車両(10)。 The electric vehicle (10) according to claim 8,
The electric vehicle (10), wherein a plate member (174) is disposed between the breather tube (148) and the rear wheel (16). - 請求項9記載の電動車両(10)において、
前記板部材(174)は、前記フェンダ(60)と一体に成形されている、電動車両(10)。 The electric vehicle (10) according to claim 9,
The electric vehicle (10), wherein the plate member (174) is formed integrally with the fender (60). - 請求項1~10のいずれか1項に記載の電動車両(10)において、
前記ブリーザチューブ(148)の入口である前記一端部(148a)は、前記モータ(20)のモータ軸(96)と、前記モータ軸(96)からの前記駆動力を前記後輪(16)に伝達する前記減速機(114)の出力軸(16a)との間に設けられている、電動車両(10)。 The electric vehicle (10) according to any one of claims 1 to 10,
The one end (148a), which is an inlet of the breather tube (148), transmits the driving force from the motor shaft (96) of the motor (20) to the rear wheel (16). An electric vehicle (10) provided between the transmission and the output shaft (16a) of the speed reducer (114). - 請求項11記載の電動車両(10)において、
前記入口は、前記駆動力を前記モータ軸(96)から前記出力軸(16a)に伝達する前記減速機(114)の中間軸(156)と、前記出力軸(16a)との間に設けられている、電動車両(10)。 The electric vehicle (10) according to claim 11,
The inlet is provided between an intermediate shaft (156) of the speed reducer (114) that transmits the driving force from the motor shaft (96) to the output shaft (16a), and the output shaft (16a). The electric vehicle (10).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201980064228.8A CN112770969B (en) | 2018-09-27 | 2019-09-26 | Electric vehicle |
JP2020549343A JP7046215B2 (en) | 2018-09-27 | 2019-09-26 | Electric vehicle |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018-181741 | 2018-09-27 | ||
JP2018181741 | 2018-09-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020067268A1 true WO2020067268A1 (en) | 2020-04-02 |
Family
ID=69951884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2019/037817 WO2020067268A1 (en) | 2018-09-27 | 2019-09-26 | Electric vehicle |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP7046215B2 (en) |
CN (1) | CN112770969B (en) |
WO (1) | WO2020067268A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2020067268A1 (en) * | 2018-09-27 | 2021-08-30 | 本田技研工業株式会社 | Electric vehicle |
JP2022127807A (en) * | 2021-02-22 | 2022-09-01 | 本田技研工業株式会社 | Saddle-riding type vehicle |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06239277A (en) * | 1993-02-19 | 1994-08-30 | Suzuki Motor Corp | Oil tank for motorcycle |
JPH115579A (en) * | 1997-06-16 | 1999-01-12 | Yamaha Motor Co Ltd | Spring characteristic variable operating device of shock absorber for saddle type vehicle |
JP2007132413A (en) * | 2005-11-09 | 2007-05-31 | Honda Motor Co Ltd | Breather structure of transmission case in motorcycle |
JP2010127364A (en) * | 2008-11-27 | 2010-06-10 | Honda Motor Co Ltd | Motorcycle |
JP2013113341A (en) * | 2011-11-25 | 2013-06-10 | Honda Motor Co Ltd | Power unit for electric vehicle |
JP5559939B2 (en) * | 2010-11-22 | 2014-07-23 | ヤマハ発動機株式会社 | Electric vehicle |
JP2016060422A (en) * | 2014-09-19 | 2016-04-25 | Ntn株式会社 | Breather structure of in-wheel motor drive device |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5117227B2 (en) * | 2008-03-12 | 2013-01-16 | 本田技研工業株式会社 | Motorcycle |
WO2009139234A1 (en) * | 2008-05-14 | 2009-11-19 | ヤマハ発動機株式会社 | Power unit adapted for use in two-wheeled motor vehicle and having breather device, and two-wheeled motor vehicle with the same |
JP4983760B2 (en) * | 2008-09-24 | 2012-07-25 | トヨタ自動車株式会社 | Breather mechanism |
JP5966416B2 (en) * | 2012-02-20 | 2016-08-10 | 日産自動車株式会社 | Breather structure of drive unit |
KR101428269B1 (en) | 2012-12-11 | 2014-08-07 | 기아자동차주식회사 | Outside handle for sliding door |
WO2020067268A1 (en) | 2018-09-27 | 2020-04-02 | 本田技研工業株式会社 | Electric vehicle |
-
2019
- 2019-09-26 WO PCT/JP2019/037817 patent/WO2020067268A1/en active Application Filing
- 2019-09-26 JP JP2020549343A patent/JP7046215B2/en active Active
- 2019-09-26 CN CN201980064228.8A patent/CN112770969B/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06239277A (en) * | 1993-02-19 | 1994-08-30 | Suzuki Motor Corp | Oil tank for motorcycle |
JPH115579A (en) * | 1997-06-16 | 1999-01-12 | Yamaha Motor Co Ltd | Spring characteristic variable operating device of shock absorber for saddle type vehicle |
JP2007132413A (en) * | 2005-11-09 | 2007-05-31 | Honda Motor Co Ltd | Breather structure of transmission case in motorcycle |
JP2010127364A (en) * | 2008-11-27 | 2010-06-10 | Honda Motor Co Ltd | Motorcycle |
JP5559939B2 (en) * | 2010-11-22 | 2014-07-23 | ヤマハ発動機株式会社 | Electric vehicle |
JP2013113341A (en) * | 2011-11-25 | 2013-06-10 | Honda Motor Co Ltd | Power unit for electric vehicle |
JP2016060422A (en) * | 2014-09-19 | 2016-04-25 | Ntn株式会社 | Breather structure of in-wheel motor drive device |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPWO2020067268A1 (en) * | 2018-09-27 | 2021-08-30 | 本田技研工業株式会社 | Electric vehicle |
JP7046215B2 (en) | 2018-09-27 | 2022-04-01 | 本田技研工業株式会社 | Electric vehicle |
JP2022127807A (en) * | 2021-02-22 | 2022-09-01 | 本田技研工業株式会社 | Saddle-riding type vehicle |
JP7216129B2 (en) | 2021-02-22 | 2023-01-31 | 本田技研工業株式会社 | straddle-type vehicle |
Also Published As
Publication number | Publication date |
---|---|
JPWO2020067268A1 (en) | 2021-08-30 |
JP7046215B2 (en) | 2022-04-01 |
CN112770969A (en) | 2021-05-07 |
CN112770969B (en) | 2022-08-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2390171B1 (en) | Saddle riding type, electric vehicle | |
JP5605376B2 (en) | Electric motorcycle | |
EP2799321B1 (en) | Saddle-type electric vehicle | |
US9067615B2 (en) | Electric saddle-ridden vehicle | |
WO2020067268A1 (en) | Electric vehicle | |
JP6698466B2 (en) | Swing arm structure of saddle type electric vehicle | |
TWI486283B (en) | Straddle type electric vehicle power unit and cross-type electric vehicles | |
JP2013113341A (en) | Power unit for electric vehicle | |
WO2020067269A1 (en) | Electric vehicle | |
WO2020067267A1 (en) | Electric vehicle | |
WO2020066261A1 (en) | Electric vehicle | |
JP5528905B2 (en) | Saddle riding type electric vehicle | |
CN110775193B (en) | Bicycle and drive unit for a bicycle | |
JP7076587B2 (en) | Electric vehicle | |
JP5437167B2 (en) | Saddle riding type electric vehicle | |
JP7221327B2 (en) | Bicycles with electric motors and their drive units | |
CN109204648B (en) | Saddle-ride type vehicle | |
JP2024021413A (en) | Saddle-riding type vehicle | |
JPH11206821A (en) | Motor vehicle | |
JP5623659B2 (en) | Straddle-type electric vehicle | |
JP2021084574A (en) | Saddle-riding type vehicle |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 19864313 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2020549343 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2101001764 Country of ref document: TH |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 19864313 Country of ref document: EP Kind code of ref document: A1 |