WO2012043643A1 - 電動二・三輪車両用スイングアーム装置 - Google Patents
電動二・三輪車両用スイングアーム装置 Download PDFInfo
- Publication number
- WO2012043643A1 WO2012043643A1 PCT/JP2011/072215 JP2011072215W WO2012043643A1 WO 2012043643 A1 WO2012043643 A1 WO 2012043643A1 JP 2011072215 W JP2011072215 W JP 2011072215W WO 2012043643 A1 WO2012043643 A1 WO 2012043643A1
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- WO
- WIPO (PCT)
- Prior art keywords
- swing arm
- electric
- battery
- vehicle
- charging
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J43/00—Arrangements of batteries
- B62J43/10—Arrangements of batteries for propulsion
- B62J43/16—Arrangements of batteries for propulsion on motorcycles or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J43/00—Arrangements of batteries
- B62J43/20—Arrangements of batteries characterised by the mounting
-
- 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
-
- 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
- B62K19/00—Cycle frames
- B62K19/30—Frame parts shaped to receive other cycle parts or accessories
-
- 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
-
- 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
- B62K25/28—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay
- B62K25/283—Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay for cycles without a pedal crank, e.g. motorcycles
-
- 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
- B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
- B62K5/02—Tricycles
- B62K5/027—Motorcycles with three wheels
-
- 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 a swing arm device for electric two- or three-wheeled vehicles, and more particularly to a swing arm device in which an electric vehicle battery and a charger are arranged for an electric two- or three-wheeled vehicle equipped with a swing arm.
- one end of a swing arm is connected to a swing shaft
- a structure is disclosed in which an end supports the rear wheel, an electric motor that drives the rear wheel is installed on the other end side of the swing arm, and a battery is disposed near the swing axis of the swing arm.
- Patent Document 1 Although it is described that a motor, a PDU, and a battery are arranged on a swing arm, since the battery needs to be charged, the charger needs to be mounted on the vehicle body. At that time, it is necessary to design where the charger is to be placed on the vehicle body side, and the wiring between the battery and the charger may be routed between the swinging swing arm and the stationary vehicle body. I had to think about it.
- the present invention has been proposed in view of the above circumstances, and includes a motor, a PDU, a battery, and a charger in a swing arm of an electric vehicle, and electric parts are integrally stored in the swing arm, and wiring is simplified as much as possible.
- An object of the present invention is to provide a swing arm device for an electric two- or three-wheeled vehicle suitable for electric two- or three-wheeled vehicles that does not require a large change on the vehicle body side.
- the invention of claim 1 includes a swing arm (30) having one end connected to the swing shaft and the other end supporting the rear wheel (WR), and the other end of the swing arm (30).
- Electric two- and three-wheel vehicle swing mounted on an electric vehicle having an electric motor (M) that is installed and drives the rear wheel (WR), a PDU that supplies electric power to the electric motor (M), and a battery (56)
- the arm device is characterized in that a charger (200) for charging the battery (56) is built in the swing arm (30).
- a controller (50) for controlling energization of the electric motor (M) is disposed on the front end side of the swing arm (30).
- the charger (200) is integrally disposed in the control unit (50), while the charger (200) includes a charging cord (220) for external charging, and stores the charging cord (220).
- Parts (300, 301, 302, 303, 304, 305) are provided on the vehicle body side of the electric vehicle, and the charging cord (220) passes from the control part through the vicinity of the swinging axis of the swing arm. 300, 301, 302, 303, 304, 305).
- components having a small heat capacity are concentrated on a control board (50a) installed on the front side of the vehicle in the control section (50).
- a component having a large heat capacity is arranged as a module on the rear end side of the swing arm (30) of (50a).
- a storage portion for storing the charging cord (220) is provided below the floor of the electric vehicle.
- a storage portion for storing the charging cord (220) is provided below the step of the electric vehicle. Yes.
- a storage portion for storing the charging cord (220) is provided below the storage box (21) of the electric vehicle. It is characterized by that.
- the invention of claim 8 is the swing arm device for an electric two- or three-wheeled vehicle according to any one of claims 2 to 7, wherein the charging terminal (215) at the tip of the charging cord (220) is insulated and insulated. It is characterized by comprising a waterproof cap (230).
- the invention of claim 9 is the swing arm device for electric two- or three-wheeled vehicles according to any one of claims 2 to 8, wherein the charging cord (220) is stretchable. Yes.
- a tenth aspect of the present invention is the swing arm device for electric two- or three-wheeled vehicles according to the first aspect, wherein the meter device (9) for displaying the vehicle state installed in the electric vehicle is used for charging confirmation of the charger (200).
- the indicator (250) is provided.
- the charger (200) in the swing arm (30), the wiring between the charger (200) and the battery (56) can be reduced and the electric parts can be integrated. Concentration and compactness of electrical parts can be achieved by storing. Moreover, it is possible to house the electric parts integrally, which requires a great change on the vehicle body side.
- the electric system between the charger (200) and the control unit (50) can be directly connected, and the number of parts can be reduced by simplifying the wiring. It can be carried out.
- control unit (50) by arranging the components constituting the control unit (50) in a modular manner, it is possible to optimally arrange by function and to save space.
- the dead space of the foot including the step and the straddle portion can be effectively used.
- the dead space below the storage box (21) can be effectively used.
- the seventh aspect of the present invention it is possible to improve convenience when taking out the charging cord (220) by providing a dedicated outlet in the storage portion (305).
- the cap (230) to the charging terminal (215) at the tip of the charging cord (220), the leakage of the charging cord (220) when not in use or the deterioration of the terminal can be prevented. Prevention can be achieved.
- the charging cord (220) has stretchability, so that it is possible to improve the storage capacity in the storage unit.
- the indicator (250) is provided in the meter device (9), the indicator (250) is turned on at the start of charging, and is turned off at the end of the charging, thereby easily confirming the charging. be able to.
- FIG. 1 is a left side view of an electric motorcycle equipped with a battery for an electric vehicle of the present invention.
- FIG. 1 is a left side view illustrating an example of an embodiment of an electric vehicle battery according to the present invention, in a state where a cover of a swing arm portion where an electric vehicle battery is disposed is removed.
- FIG. 3 is a top view of a swing arm portion where the electric vehicle battery of FIG. 2 is disposed. It is a disassembled perspective view of a swing arm. It is an expanded sectional view of a deceleration mechanism. It is sectional explanatory drawing which shows the floor tunnel part in the vehicle which has a floor tunnel.
- FIG. 1 is a side view of an electric motorcycle 1 according to an embodiment of the present invention.
- the electric motorcycle 1 is a scooter type straddle-type vehicle having a low floor 16 and drives a rear wheel WR by an electric motor M housed in a swing arm (unit swing) 30.
- a head pipe 3 that rotatably supports a stem shaft (not shown) is coupled to the front portion of the vehicle body frame 2.
- a steering handle 8 covered with a handle cover 11 is coupled to the upper portion of the stem shaft, and a pair of left and right front forks 6 that pivotally support a front wheel WF by an axle 7 are coupled to one lower portion.
- the vehicle body frame 2 includes a main pipe 4 that extends downward from the rear portion of the head pipe 3 and a rear frame 5 that is connected to the rear end portion of the main pipe 4 and extends upward of the rear portion of the vehicle body.
- a floor frame 15 that supports the low floor 16 is attached to the main pipe 4 that is positioned below the low floor 16.
- a pair of left and right pivot plates 17 are attached to the joint between the main pipe 4 and the rear frame 5.
- the swing arm 30 is a cantilever type having an arm portion only on the left side in the vehicle width direction, and is pivotable to the vehicle body frame 2 via a swing shaft 19 that passes through a link 18 attached to the pivot plate 17. It is supported.
- the swing arm 30 is a partially hollow structure made of metal such as aluminum, and the electric motor M is accommodated in the vicinity of the axle 32, and a board (control unit) as a control device is disposed in front of the electric motor M in the vehicle body. ) 50 is provided.
- a battery 56 (see FIG. 3) that supplies electric power to the electric motor M is disposed on the right side of the board (control unit) 50 in the vehicle width direction.
- the rear wheel WR is rotatably supported on the swing arm 30 by an axle 32, and the rear end portion of the swing arm 30 is suspended from the rear frame 5 via a rear cushion 26.
- a storage box 21 serving as a helmet or a luggage storage space is disposed below the seat 20 so as to be sandwiched between a pair of left and right rear frames 5.
- the main pipe 4 of the vehicle body frame 2 is covered with a front cowl 13 on the front side of the vehicle body and a leg shield 12 on the rear side of the vehicle body.
- a meter device 9 is disposed on the handle cover 11, and a headlamp 10 is attached to the front side of the meter device 9 on the vehicle body.
- a front fender 14 that covers the front wheel WF is fixed to the top of the front fork 6.
- the outer side of the rear frame 5 in the vehicle width direction is covered with a seat cowl 23, and a taillight device 24 is attached to the rear end of the seat cowl 23.
- a rear carrier 22 coupled to the rear frame 5 protrudes above the taillight device 24, and a rear fender 25 is provided below the taillight device 24 to cover the rear upper side of the rear wheel WR.
- FIG. 2 is an enlarged side view of the swing arm 30 on which the battery for the electric vehicle is mounted with the cover removed.
- FIG. 3 is a top view of the swing arm 30, and
- FIG. 4 is an exploded perspective view of the swing arm 30.
- the swing arm 30 is a partially hollow structure made of metal such as aluminum, and is a cantilever type in which the rear wheel WR is supported by the left arm portion 39 in the vehicle width direction.
- a pair of left and right pivot flanges 36 in which through holes 19a of the swing shaft 19 (see FIG. 1) are formed are provided at the lower part of the swing arm 30 on the front side of the vehicle body.
- a storage space 35 into which a plurality of battery cells 56 are inserted is formed on the vehicle body upper side of the pivot flange 36.
- the wide case portion 38 and the arm portion 39 that form the outer shell portion of the storage space 35 are: It is formed continuously via the bending portion 40.
- a thin plate-like swing arm cover 57 that integrally covers the board (control unit) 50 and the electric motor M is attached to the left side of the storage space 35 and the arm part 39 in the vehicle width direction.
- speed reducer cases 33 and 41 in which a speed reducer that decelerates the rotation of the electric motor M is housed are attached.
- the axle 32 protrudes from the reduction gear case 41 toward the right side in the vehicle width direction, and a wheel 34 of the rear wheel WR is fixed to an end portion of the axle 32 by a nut 32a.
- a tubeless tire is used for the rear wheel WR, and an air valve 42 is provided on the wheel 34.
- the reduction gear case 33 is provided with an attachment flange 37 in which a through hole 26a for attaching the rear cushion 26 (see FIG. 1) is formed.
- FIG. 5 is an enlarged cross-sectional view of the speed reduction mechanism 720.
- a speed reduction mechanism is disposed between the electric motor M and the axle 32.
- the swing arm 30 according to the present embodiment is a cantilever type in which the rear wheel WR is pivotally supported by only the left arm portion, and the electric motor M and the speed reduction mechanism 720 are concentratedly arranged at a position on the vehicle body rear side of the arm portion. Has been.
- the electric motor M is fixed to the inner wall of the swing arm 30 and is an inner rotor type including a stator 701 having a stator coil and a rotor 702 fixed to a motor drive shaft 705 via a collar 703.
- the left end of the motor drive shaft 705 in the vehicle width direction is pivotally supported by a bearing 704 fitted to the swing arm cover 57.
- the right side in the vehicle width direction of the motor drive shaft 705 is pivotally supported by a bearing 707 fitted to the reduction gear case 33 and a bearing 709 fitted to the reduction gear case 41.
- a support hole 26 a for the rear shock unit 26 is formed at the rear end of the speed reducer case 33.
- an output wiring 700 of the electric motor M is disposed on the vehicle body front side of the electric motor M.
- the rotational driving force transmitted to the motor drive shaft 705 is transmitted to the final output shaft (axle) 32 via the speed reduction mechanism 720.
- And is transmitted to the final output shaft 32 rotatably supported by the bearing 714 fixed to the second reduction gear 715 and fitted to the reduction gear case 33 and the bearing 718 fitted to the reduction gear case 41.
- a wheel 34 of the rear wheel WR is fixed to the right end portion of the final output shaft 32 in the figure via a collar 717.
- a brake drum having a liner 719 is formed on the inner diameter side of the wheel 34, and a pair of upper and lower brake shoes (not shown) driven by a brake cam (not shown) are housed inside the wheel.
- An oil seal 716 is disposed on the left side of the bearing 718 in the figure.
- a rectangular storage space 35 is integrally formed.
- the storage space 35 has an opening side (opening) of the storage space 35 on the side of the electric vehicle, and the battery 56 can be inserted from this opening side. ing.
- the battery for an electric vehicle uses a dedicated case by assembling the battery 56 integrally with the board (control unit) 50 and inserting and fixing the battery 56 in the storage space 35 of the swing arm 30 in the assembled state. Without being mounted directly on the swing arm 30, the electric motorcycle is mounted.
- the battery 56 according to the present embodiment has a module structure in which a predetermined high voltage is obtained by connecting a plurality of battery cells.
- the plate-shaped battery cells 56 are accommodated in a substantially rectangular parallelepiped storage space 35 formed in the wide case portion 38 in a state where the planar portions thereof are stacked with the plane portions thereof oriented in the vehicle body front-rear direction.
- each battery cell is a laminate type in which each cell is packed with a soft laminate sheet. According to this laminate type battery, high energy density and improvement in heat dissipation performance can be expected, and attachment work to the swing arm 30 and battery replacement work are facilitated.
- the board (control unit) 50 as a control device in which the charging device according to the present embodiment is incorporated is disposed close to the left side of the battery 56 in the vehicle width direction.
- the board (control unit) 50 includes a control board 50a, a heat generating element board 50b, and an aluminum board 50c, and is arranged so that each plane part is oriented in the vehicle width direction.
- the control board 50a is disposed close to the left side in the vehicle width direction of the battery 56, and the heating element board 50b is connected to the vehicle body rear side of the control board 50a.
- the aluminum substrate 50 c is disposed close to the left side of the battery 56 in the vehicle width direction.
- the charging cord 220 for external charging connected to the charger 200 is stored in a storage unit 300 provided under the low floor floor 16.
- the charging cord 220 is formed in a curl shape having elasticity, and an AC plug (charging terminal) 215 at the tip is detachably attached with an insulating / waterproof cap 230. With this configuration, the dead space under the low floor 16 can be effectively used. Further, by forming the charging cord 220 in a curled shape, it is possible to improve storage performance, and it is possible to prevent leakage of the charging cord 220 and terminal deterioration when not in use by the removable cap 230. Further, the storage unit 300 may include a winding device for the charging cord 220.
- the storage unit 300 is provided below the low floor floor 16.
- the main pipe 4 inserted through the floor tunnel 400 forward and backward.
- the storage part 301 may be formed in the part located above, or the storage part 302 may be formed under the step 401 located on both sides of the floor tunnel 400. With this configuration, it is possible to effectively use the dead space at the foot including the step 401 and the floor tunnel (stranding portion) 400.
- a storage portion 303 or 304 may be provided at an upper position or a lower position of the storage box 21 as shown in FIG. Good.
- the storage unit 305 may be provided in the space under the storage box 21. With this configuration, it is possible to effectively use the dead space below the storage box 21.
- a cover 306 for taking out the charging cord 220 on the exterior surface that covers the outside of the storage unit 305 the charging cord 220 can be taken out without opening the seat 20.
- a dedicated outlet by the lid 306 it is possible to improve convenience when the charging cord 220 is taken out.
- a sponge rubber 501 having a predetermined thickness is disposed between the battery 56 and the aluminum substrate 50c.
- the sponge rubber 501 is formed with a plurality of slits for inserting plate-like terminals provided at the left end of each battery cell in the figure. By inserting the plate-like terminal 500 into each slit, the position of the plate-like terminal is defined. Further, according to the sponge rubber 501, it is possible to reduce the amount of the potting agent 59 used in the potting process described later and to reduce the weight of the swing arm 30.
- the aluminum substrate 50c is disposed close to the sponge rubber 501.
- the elements that generate heat when a large current flows are mounted on the heating element substrate 50b and the aluminum substrate 50c.
- a thermistor 51 having a large heat capacity, a charger input / output filter group 52, a charger power factor improving inductor 53, a charger power factor improving capacitor 54, a DC output smoothing capacitor 55, and the like are heat generating elements.
- An electronic component having a small heat capacity is mounted on the aluminum substrate 50c, mounted on the substrate 50b.
- the heat generating element substrate 50b in which only the heat generating elements having a large heat generation amount are provided in a concentrated manner, it is possible to reduce the thermal load applied to other elements by the heat generated by the heat generating elements mounted on the heat generating element substrate 50b. It becomes. Further, by dividing the arrangement position of the heat generating element and the arrangement position of the other control elements, it is possible to increase the degree of freedom of layout of the pivot flange 39, the through hole 19a and the like. That is, in the board (control unit) 50, components that hardly generate heat are collected on the control board 50a, and components having a large heat capacity are arranged in a module on the heating element board 50b on the front end side of the swing arm 30 of the control board 50a. Therefore, it is possible to arrange optimally for each function and to save space.
- Each battery cell constituting the battery 56 is fixed to the aluminum substrate 50c, and the control unit 50 is arranged on the front end side of the swing arm.
- the circuit of the control unit 50 and each battery cell are electrically connected so that the battery 56 is charged and the voltage from the battery 56 is supplied to the control board 50a to control the driving of the electric motor M. It has become.
- the heating element substrate 50b is disposed on the vehicle body rear side of the control board 50a, it is possible to prevent the heat effect of the heating element on the control board 50a located on the upstream side in the vehicle body traveling direction. Furthermore, the control board 50a is disposed outside the battery 56 in the vehicle width direction, whereby the thickness in the vehicle width direction can be reduced. Since the heating element substrate 50b is disposed at a position overlapping the rear wheel WR in a side view of the vehicle body, the heating element board 50b is effectively utilized by utilizing the space formed between the battery 56 and the electric motor M. The swing arm can be prevented from becoming too long.
- the battery 56 has a substantially rectangular parallelepiped shape in which the longitudinal direction is oriented in the vehicle width direction by stacking a predetermined number of sheets in the longitudinal direction of the vehicle body, and the storage space of the wide case portion 38. 35.
- guide grooves 44 are formed for storing the respective plate-like battery cells at predetermined positions.
- the guide groove 44 forms a plurality of groove portions corresponding to each battery cell along the insertion direction of the battery 56 on the upper surface and the lower surface in the storage space 35, thereby storing each battery cell constituting the battery 56.
- the side portions of each cell (each cell) are fitted into the guide groove 44 so that the position can be fixed.
- the wide case portion 38 is formed with a through hole 38a into which the embolus 45 is fitted.
- a through-hole 47 into which the plug 45 is fitted is formed in the connecting plate 46 that connects the battery 56 and the substrate (control unit) 50 in the front of the vehicle body.
- the plug 45 and the through holes 38a and 47 are used in a “resin potting process” performed when the swing arm 30 is assembled. In this potting process, the battery 56 and the substrate (control unit) 50 are physically fixed to the swing arm 30, the substrate (control unit) 50 is insulated and vibration-proof, and the heat dissipation of each unit is further improved. It is.
- the battery 56 and the substrate (control unit) 50 are inserted into the wide case portion 38, and positioning is performed by fitting the plugs 47 into the through holes 38a and 47, and then the opening of the wide case 38 is moved upward.
- the potting agent 59 made of a liquid resin that hardens over time is poured into the periphery of the battery 56. As shown in FIG. 7, the potting agent 59 is injected so as to cover the control board 50a and the aluminum board 50c and to cover part of the mounting surface side of the capacitor 53 and various transformer groups 55 mounted on the heat generating board 50b. Is done.
- the potting agent 59 also has a function of improving heat dissipation of the battery 56 and the like.
- a communication hole is formed at the position where the embolus 45 is located so as to communicate the inside and outside of the wide case portion 38. According to this communication hole, even if gas is discharged from the battery 56, this gas is discharged smoothly to the outside, and an increase in pressure in the swing arm 30 can be prevented. That is, the relief passage for high pressure release that leads the air pressure (for high pressure release) when the ambient temperature of the battery that has become high rises to the outside can be formed with a potting agent. Special members can be reduced.
- the potting agent poured into the storage space 35 from the periphery is filled around the space of the battery 56 stored in the storage space 35, and includes at least a connection portion with the control board 50a above the cell.
- the position of the battery 56 is fixed with respect to the storage space 35 by the intervention of the potting agent.
- a swing arm cover 57 serving as a lid is placed on the opening side of the storage space 35.
- the meter device 9 is provided with an indicator 250 for confirming the charging of the charger 200 as shown in FIG.
- the indicator 250 is configured to turn on when the AC plug (filling terminal) 215 of the charging cord 220 is taken out of the storage unit and inserted into an external outlet and charging is started, and is turned off when charging is completed. Therefore, after the indicator 250 is turned off, the AC plug (filling terminal) 215 can be removed from the outlet, so that the charging can be easily confirmed.
- a dedicated case for holding the battery 56 is not required, and the swing arm 30 itself is used as a holding case for the battery 56, while the battery 56 is securely fixed to the swing arm 30.
- the number of parts can be reduced and the weight can be reduced. Since the heavy battery 56 can be assembled later, it is not necessary to partially bulge the swing arm 30 in accordance with the shape of the battery 56 while improving vehicle assemblability.
- the battery can be securely fixed to the swing arm 30 while contributing to reduction and weight reduction.
- the swing arm 30 can be used as a heat radiator, so that the cooling effect of the battery 56 can be improved. Further, by simplifying the mounting structure of the battery 56, the entire battery unit can be made compact, and the degree of design freedom for other configurations such as the arrangement of electrical components can be improved.
- FIG. 9 and FIG. 10 are block diagrams showing the configuration of the electric system applied to the electric motorcycle 1.
- the same reference numerals as those described above denote the same or equivalent parts.
- FIG. 10 shows a configuration circuit of only a charger
- FIG. 9 shows the other overall configuration.
- the elements mounted on the control board 50 a are indicated by “one-dot chain lines”
- the elements mounted on the aluminum board 50 c are indicated by “broken lines”
- the elements mounted on the heating element board 50 b are indicated by “solid lines”. ", Respectively.
- control board 50a An element through which a small current for control signals flows is mounted on the control board 50a. These elements hardly generate heat, and the control substrate 50a is formed of a glass epoxy substrate.
- the aluminum substrate 50c elements on which a large current flows and cannot self-heat dissipation are mounted. These electronic components are, for example, semiconductor elements (FETs, diodes), resistors, film capacitors, and the like, and heat dissipation is enhanced by being mounted on an aluminum substrate 50c having high thermal conductivity.
- large electronic components that allow large current to flow and self-heat dissipation are mounted on the heating element substrate 50b. These electronic components are, for example, an inductor, a transformer, an electrolytic capacitor, and the like, and the heat generation is improved by disposing the heating element substrate 50b at a position that is not easily affected by battery heat.
- a lithium ion battery 56 is electrically connected to the input side of inverter 123 via contactor 104, and the output side of inverter 123 is connected to electric motor M by a three-phase AC line. ing.
- a precharge relay 105 that prevents a sudden rise in supply current is connected in parallel to a contactor 104 that is on / off controlled by a mechanical contact that operates by electromagnetic force.
- a BMU (battery management unit) 100 includes a monitoring circuit (ASIC) 101 for monitoring the voltage and temperature of the battery 56, a cell balance discharge unit 102 for correcting battery cell capacity variation, and a controller 103 for controlling these. Is included.
- ASIC monitoring circuit
- controller 103 in the BMU 100 and the controller 122 as a control device for controlling the inverter 123, lines of a constant system 116, a control system 117, a main switch system 118, and a CAN communication 119 are arranged. Further, an overcharge alert signal 120 is transmitted from the controller 103 of the BMU 100, and a contactor control signal 121 is transmitted from the controller 122 of the inverter 123.
- the controller 122 of the inverter 123 includes an angle sensor 124 that detects the rotation angle of the electric motor M, a throttle sensor 125 that detects the throttle operation amount of the occupant, and a seat SW (switch) that detects whether or not the seat 20 is seated. 126, sensor signals from a side stand SW127 for detecting whether or not a side stand (not shown) of the electric vehicle 1 is stored and a bank angle sensor 129 for detecting an inclination angle (bank angle) of the electric vehicle are input.
- the buzzer 128 as an alarm device operates according to an operation signal from the controller 122 when an overdischarge state or the like of the battery 56 is detected.
- the constant system 116 is connected to a DCDC unit 106 that converts a large current supplied from the battery 56 into a control current.
- the DCDC unit 106 includes a primary side driver 107, a DC-DC transformer 108, an output rectifier circuit 109, an output filter 110, a primary side driver IC 113 that supplies a PWM signal to the primary side driver 107, and the output rectifier.
- a secondary side drive IC 114 for supplying a PWM signal to the circuit 109 is included.
- An activation signal 115 is supplied from the controller 122 to the primary side drive IC 113. Further, the anti-theft alarm unit 133 and one end side of the main SW 136 are connected to the regular system 116.
- the control system 117 is connected to the controller 122 of the inverter 123.
- One end of a meter indicator 132 as an operation indicator lamp of the anti-theft alarm unit 133 is connected to the control system 117.
- the meter indicator 133 is connected to a speed sensor that detects the vehicle speed, and the meter indicator 133 is configured to function as a speed warning light when the vehicle speed exceeds a predetermined value.
- the main SW system 118 is connected to a lighting device 130 such as a winker device, a headlight (H / L) 10, and general electrical equipment 131 such as a battery cooling fan.
- the end of the main SW system 118 is connected to an auto power off relay 135 that enables the headlight 10 and the like to operate under a predetermined condition even when the main SW 136 is turned off.
- charger 200 is connected to DC current input / output lines (A, B) connected to battery 56 and AC plug 215 connected to a commercial AC power source or the like.
- the charger 200 includes an input filter 209, a bridge diode 208, a PFC circuit 207 as a power factor correction circuit, a primary side driver 206, an AC-DC transformer 204, an output rectifier circuit 203, and an output filter 201.
- the signal of the overcurrent detection circuit 212 disposed between the primary side drive unit 206 and the AC-DC transformer 204 is input to the PFC-PWM drive IC 213, while the voltage detection circuit connected to the output filter 201.
- the signal 202 is input to the PFC-PWM drive IC 213 via the photocoupler 205.
- the PFC circuit 207 and the primary side drive unit 206 are driven by PWM signals 210 and 214 output from the PFC-PWM drive IC 213, respectively.
- the activation signal 214 (C) from the controller 122 of the inverter 123 is input to the PFC-PWM drive IC 213.
- charge cord 230 ... cap, 250 ... indicator, 300, 301, 302, 303, 304, 305 ... storage section, 306 ... lid, 400 ... floor tunnel , 401 ... step, M ... electric motor, WR ... the rear wheels.
Abstract
Description
また、車体側に大きな変更を必要とすること電動部品を一体に収納することができる。
最終出力軸32の図示右側端部には、後輪WRのホイール34が、カラー717を介して固定されている。ホイール34の内径側には、ライナー719を有するブレーキドラムが形成されており、その内側には、ブレーキカム(不図示)によって駆動される上下一対のブレーキシュー(不図示)が収納されている。軸受718の図示左方側には、オイルシール716が配置されている。
本実施形態に係るバッテリ56は、複数のバッテリセルを接続することで所定の高電圧を得るようにしたモジュール構造を有する。板状のバッテリセル56は、その平面部を車体前後方向に指向させて積層された状態で、幅広ケース部38に形成された略直方体形状の収納空間35に収められる。これにより、重量物としてのバッテリ56がスイングアーム30の揺動軸19に近接配置されることとなり、スイングアーム30の揺動時の慣性モーメントを低減してスムーズな揺動動作が可能となる。また、各バッテリセルは、軟質のラミネートシートで1セル毎にパッキングされたラミネート型とされる。このラミネート型バッテリによれば、高いエネルギ密度や放熱性能の向上が期待できるほか、スイングアーム30への取付作業やバッテリの交換作業が容易になる。
また、収納部300には、充電コード220の巻き取り装置を備えてもよい。
そして、収納部305の外側をカバーする外装面に、充電コード220を取り出すための蓋306を設けることで、シート20を開けることなく充電コード220を取り出し可能な構成とすることができる。蓋306により専用の取り出し口を設けることで、充電コード220の取り出しに際して利便性の向上を図ることができる。
このように、発熱量の大きい発熱素子のみを集中配置した発熱素子基板50bを設けることで、発熱素子基板50bに実装された発熱素子の発熱が他の素子へ与える熱負荷を低減することが可能となる。また、発熱素子の配設位置と他の制御素子との配設位置を分けたことにより、ピボットフランジ39および貫通孔19a等のレイアウトの自由度を高めることが可能となる。
すなわち、基板(制御部)50において、ほとんど発熱しない部品を制御基板50aに集約し、制御基板50aのスイングアーム30の前端側の発熱素子基板50bに熱容量の大きい部品をモジュール化して配置することで、機能別に最適な配置を可能とし、省スペース化を図ることができる。
制御部50の回路と各バッテリセルとは電気的に接続されることで、バッテリ56への充電や、バッテリ56からの電圧が制御基板50aに供給されて電動モータMの駆動を制御するようになっている。
すなわち、高温となったバッテリの雰囲気温度が上昇した場合の空気圧力(高圧圧力抜き用)を外部に導く高圧圧力抜き用の逃がし通路をポッティング剤で形成することができ、逃がし通路形成のための専用部材を削減することができる。
この構造により、収納空間35内に位置決めされたバッテリ56をポッティング剤の介在により固定することで、バッテリ56をスイングアーム30内に一体的に搭載することができる。また、制御基板50aをバッテリ(各バッテリセル)56とともにポッティング固定を行うことで、専用固定部品を削減することができる。
重量物であるバッテリ56を後から組み込める構造としたので、車両組立性の向上を図りつつ、バッテリ56の形状に合わせて部分的にスイングアーム30を膨出させる必要も無いことから、部品点数の削減、軽量化に貢献しながらバッテリを確実にスイングアーム30に固定することができる。
バッテリ56をスイングアーム30に直接固定することで、スイングアーム30を放熱体として使用可能となるので、バッテリ56の冷却効果を向上させることができる。
また、バッテリ56の搭載構造を簡略化したことで、バッテリユニット全体をコンパクトにでき、電装部品の配置等、他の構成に対する設計の自由度を向上できる。
Claims (10)
- 一端が揺動軸に連結し他端が後輪(WR)を支持するスイングアーム(30)と、前記スイングアーム(30)の他端側に設置し前記後輪(WR)を駆動する電動モータ(M)と、前記電動モータ(M)へ電力を供給するPDU及びバッテリ(56)を備えた電動車両に装着される電動二・三輪車両用スイングアーム装置であって、
前記スイングアーム(30)内に前記バッテリ(56)を充電する充電器(200)を内蔵して成る
ことを特徴とする電動二・三輪車両用スイングアーム装置。 - 前記電動モータ(M)の通電を制御する制御部(50)を前記スイングアーム(30)の前端側に配置し、前記制御部(50)に前記充電器(200)を一体に配置する一方、前記充電器(200)は外部充電用の充電コード(220)を備え、前記充電コード(220)を収納する収納部(300,301,302,303,304,305)を前記電動車両の車体側に設け、前記充電コード(220)は、前記制御部からスイングアームの揺動軸近傍を通って前記収容部(300,301,302,303,304,305)に配索される請求項1に記載の電動二・三輪車両用スイングアーム装置。
- 熱容量の小さい部品を前記制御部(50)における車両前側に設置する制御基板(50a)に集約し、前記制御基板(50a)のスイングアーム(30)の後端側に熱容量の大きい部品をモジュール化して配置して成る請求項2に記載の電動二・三輪車両用スイングアーム装置。
- 前記充電コード(220)を収納する収納部(301)を前記電動車両のフロア下に設けた請求項2又は請求項3に記載の電動二・三輪車両用スイングアーム装置。
- 前記充電コード(220)を収納する収納部(302)を前記電動車両のステップ下に設けた請求項2又は請求項3に記載の電動二・三輪車両用スイングアーム装置。
- 前記充電コード(220)を収納する収納部を前記電動車両の収納ボックス(21)下方に設けた請求項2又は請求項3に記載の電動二・三輪車両用スイングアーム装置。
- 前記収納ボックス(21)下方の外側をカバーする外装面に、前記充電コード(220)を取り出すための蓋(306)を設けた請求項6に記載の電動二・三輪車両用スイングアーム装置。
- 前記充電コード(220)の先端の充電端子(215)に、絶縁・防水用のキャップ(230)を備えて成る請求項2ないし請求項7のいずれか1項に記載の電動二・三輪車両用スイングアーム装置。
- 前記充電コード(220)は伸縮性を有して成る請求項2ないし請求項8のいずれか1項に記載の電動二・三輪車両用スイングアーム装置。
- 前記電動車両に設置された車両状態を表示するメータ装置(9)に、前記充電器(200)の充電確認用のインジケータ(250)を設けた請求項1に記載の電動二・三輪車両用スイングアーム装置。
Priority Applications (7)
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JP2012536513A JP5426034B2 (ja) | 2010-09-30 | 2011-09-28 | 電動二・三輪車両用スイングアーム装置 |
BR112013007657A BR112013007657A2 (pt) | 2010-09-30 | 2011-09-28 | dispositivo braço oscilante para veículo elétrico de duas ou de três rodas |
ES11829196.2T ES2559352T3 (es) | 2010-09-30 | 2011-09-28 | Dispositivo de brazo basculante para vehículo eléctrico de dos o tres ruedas |
CA2811039A CA2811039C (en) | 2010-09-30 | 2011-09-28 | Swing arm device for electric two-or three-wheeled vehicle |
EP11829196.2A EP2623405B1 (en) | 2010-09-30 | 2011-09-28 | Swing arm device for electric two- or three-wheeled vehicle |
US13/821,359 US8893833B2 (en) | 2010-09-30 | 2011-09-28 | Swing arm device for electric two- or three-wheeled vehicle |
CN201180047335.3A CN103140413B (zh) | 2010-09-30 | 2011-09-28 | 电动二、三轮车辆用摆臂装置 |
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JP2010-222876 | 2010-09-30 |
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WO2012043643A1 true WO2012043643A1 (ja) | 2012-04-05 |
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EP (1) | EP2623405B1 (ja) |
JP (1) | JP5426034B2 (ja) |
CN (1) | CN103140413B (ja) |
BR (1) | BR112013007657A2 (ja) |
CA (1) | CA2811039C (ja) |
ES (1) | ES2559352T3 (ja) |
WO (1) | WO2012043643A1 (ja) |
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Publication number | Publication date |
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CA2811039A1 (en) | 2012-04-05 |
CN103140413B (zh) | 2016-05-11 |
JP5426034B2 (ja) | 2014-02-26 |
US8893833B2 (en) | 2014-11-25 |
EP2623405A4 (en) | 2014-03-19 |
CN103140413A (zh) | 2013-06-05 |
US20130175102A1 (en) | 2013-07-11 |
BR112013007657A2 (pt) | 2016-08-09 |
ES2559352T3 (es) | 2016-02-11 |
CA2811039C (en) | 2015-04-14 |
EP2623405A1 (en) | 2013-08-07 |
JPWO2012043643A1 (ja) | 2014-02-24 |
EP2623405B1 (en) | 2016-01-06 |
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