WO2004069638A1 - Electrically powered motorcycle - Google Patents

Electrically powered motorcycle Download PDF

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Publication number
WO2004069638A1
WO2004069638A1 PCT/JP2004/001152 JP2004001152W WO2004069638A1 WO 2004069638 A1 WO2004069638 A1 WO 2004069638A1 JP 2004001152 W JP2004001152 W JP 2004001152W WO 2004069638 A1 WO2004069638 A1 WO 2004069638A1
Authority
WO
WIPO (PCT)
Prior art keywords
case
charger
battery
battery case
electric motorcycle
Prior art date
Application number
PCT/JP2004/001152
Other languages
French (fr)
Japanese (ja)
Inventor
Yoshinori Harada
Junji Terada
Original Assignee
Yamaha Hatsudoki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yamaha Hatsudoki Kabushiki Kaisha filed Critical Yamaha Hatsudoki Kabushiki Kaisha
Priority to JP2005504860A priority Critical patent/JPWO2004069638A1/en
Publication of WO2004069638A1 publication Critical patent/WO2004069638A1/en

Links

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
    • 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
    • B62J43/28—Arrangements of batteries characterised by the mounting hidden within the cycle frame
    • 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
    • B62J50/00—Arrangements specially adapted for use on cycles not provided for in main groups B62J1/00 - B62J45/00
    • B62J50/30—Means for ventilation within devices provided on the cycle, e.g. ventilation means in a battery container
    • 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
    • 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
    • B62K2204/00—Adaptations for driving cycles by electric motor

Definitions

  • the present invention relates to an electric motorcycle equipped with a battery and a charger. Background art
  • Japanese Patent No. 3231670 As a conventional electric vehicle of this type, for example, there is one disclosed in Japanese Patent No. 3231670.
  • the electric vehicle disclosed in this publication is an electric three-wheeled vehicle having a pair of rear wheels, in which a power unit having a motor for driving rear wheels and a battery box having a battery for supplying power to the motor are provided at the rear. It is mounted in the space between the wheels.
  • the battery box houses a plurality of batteries therein and is mounted above the power unit.
  • the battery box is defined by a horizontal partition plate into a lower storage chamber and an upper storage chamber, and the batteries are stored in the lower storage chamber in a state in which the batteries are arranged in the front-rear direction of the vehicle body.
  • the upper storage chamber stores a control unit for controlling the motor, a charger for charging a battery, and the like in a state of being arranged in the front-rear direction of the vehicle body.
  • the battery box is provided with a cooling device having an electric fan and a cooling air passage.
  • the cooling device is configured to supply air to the motor by the electric fan, and to supply warm air after cooling the motor into the lower storage chamber from a lower portion on the front side of the vehicle body.
  • the warm air supplied to the lower storage chamber is discharged out of the battery box through a discharge port provided at the rear end of the lower storage chamber.
  • the upstream side of the electric fan in the cooling air passage is formed so as to cross the upper part of the front side of the battery box in the vehicle width direction, and extends in the vehicle width direction.
  • the upper housing space communicates with the portion. That is, the cooling device is configured such that when air flows through the cooling air passage, air also flows into the upper housing space and the control unit / charger and the like are cooled.
  • the cooling device configured as described above has a problem in that the temperature of the battery becomes high because the hot air after passing through the motor is supplied to the storage space of the battery.
  • the cooling air passage extends in the vehicle width direction or is formed so as to pass through the motor, and the shape of the passage becomes complicated, so that it is difficult to increase the amount of air blown.
  • this cooling device also has a problem that cooling air does not easily flow through the upper storage chamber in which the charger is stored, and the temperature of the charger easily rises.
  • a dedicated fan may be provided.
  • this configuration increases the number of components of the cooling device and increases the size of the vehicle body.
  • the present invention has been made to solve such a problem, and an object of the present invention is to make it possible to sufficiently cool a battery and a charger while reducing the size of a vehicle body. Disclosure of the invention
  • an electric motorcycle includes: a battery case for accommodating the battery; and a charger case for accommodating the charger, each having a ventilation space formed therein. And the charger case are arranged back and forth, and the front end of the rear case is connected to the rear end of the front case so that the ventilation spaces in both cases communicate with each other. An air inlet is formed at the front end, and an electric fan is provided at the rear end of the rear case to exhaust air from the case. It is something.
  • the outside air is sucked into the case from the front end of the front case, passes through the ventilation space in the front case, and moves from the rear end to the rear case. It flows into the front end.
  • the air that has flowed into the rear case passes through the ventilation space in the rear case and the electric fan and is discharged out of the case from the rear end.
  • the cooling air flows in the front case and the rear case, so that the battery and the charger are cooled.
  • the battery case and the charger case which are arranged in the front-rear direction of the vehicle body, substantially form the passage wall of the cooling air passage, and the cooling air flowing through the cooling air passage forcibly connects the battery and the charger. Can be cooled.
  • the cooling air passage extends from the front end of the front case to the rear of the vehicle body, traveling air can be used as cooling air.
  • the electric motorcycle according to claim 2 is the electric motorcycle according to claim 1, wherein the charger case is positioned behind the battery case, and the ventilation spaces in both cases communicate with each other.
  • Electric fan that connects the front end of the charger case to the rear end of the battery case, forms an air inlet at the front end of the battery case, and discharges air inside the case to the rear end of the charger case. Is provided.
  • the present invention after the battery having a lower temperature than the charger is first cooled by the cooling air flowing through the cooling air passage formed by the battery case disposed on the front side and the charger case disposed on the rear side. This cools the charger, and both the battery and the charger can be cooled reliably and sufficiently.
  • An electric motorcycle according to a third aspect of the present invention is the electric motorcycle according to the first or second aspect of the present invention, further comprising a vehicle body cover that covers a battery case and a charger case.
  • the battery case and the charger case are embraced in appearance. Without this, it can be formed into a shape that allows the cooling air to flow easily. Therefore, the cooling efficiency can be further improved.
  • the electric motorcycle according to the fourth aspect of the present invention is the electric motorcycle according to the third aspect, wherein the cooling air outlet of the vehicle body cover and the cooling air outlet formed in the charger case are: According to the present invention, the cooling air passage downstream of the charger case is formed so as to have a labyrinth shape.
  • the electric motorcycle according to the invention described in claim 5 is the electric motorcycle according to the invention described in claim 1 or 1, wherein a plurality of cell-type batteries are arranged in a zigzag pattern in one battery case, and ventilation is provided between the batteries. It is a space for use.
  • a plurality of batteries can be compactly arranged in a direction orthogonal to the longitudinal direction, and the battery is located at the center of the battery case and is most difficult to be cooled. become able to.
  • the electric motorcycle according to the invention described in claim 6 is the electric motorcycle according to any one of claims 1 to 5, wherein the footrest having a low floor is provided between the front wheel and the rear wheel. And a pair of left and right frame members extending upward from the footrest toward the seat so as to make the battery case and the charger case smaller in the vehicle width direction than the occupied width of the frame members.
  • the battery case is disposed between the frame members so as to extend in parallel with the frame members, and the charger case is connected to the upper end of the battery case so as to extend rearward.
  • the battery case is disposed below the seat in such a manner as to be inclined rearward and upward, and the cooling air flows in substantially the same direction as the direction in which the heat of the battery rises by convection.
  • a pair of frames that line the battery case and the charger case in the vehicle width direction It can be arranged inside the member.
  • An electric motorcycle according to a seventh aspect of the present invention is the electric motorcycle according to any one of the first to sixth aspects, wherein the electric fan is provided with a charger having a predetermined temperature. When the temperature is lower than the cooling start temperature, the operation is stopped, and when the temperature of the charger exceeds the cooling start temperature of the charger, the operation is started.
  • the electric fan operates based on the result of monitoring the temperature of the charger, and operates as needed.
  • An electric motorcycle according to an eighth aspect of the present invention is the electric motorcycle according to the seventh aspect of the present invention, wherein the temperature of the battery is lower than a predetermined battery cooling start temperature and the temperature of the charger is lower than the predetermined temperature. Stop when the temperature is lower than the charger cooling start temperature, and activate when the battery temperature is higher than the battery cooling start temperature or when the charger temperature is higher than the charger cooling start temperature. It is.
  • the electric fan operates based on the result of monitoring the temperature of the battery, and operates as needed.
  • FIG. 1 is a side view of an electric motorcycle according to the present invention.
  • FIG. 2 is an enlarged side view showing a main part of the electric motorcycle according to the present invention.
  • FIG. 3 is a plan view of a main part of the electric motorcycle according to the present invention.
  • FIG. 4 is a plan view of the battery case.
  • FIG. 5 is a rear view of the battery case.
  • Figure 6 is a bottom view of the battery case.
  • FIG. 7 is an enlarged cross-sectional view showing a connection portion between one battery case and a charger case.
  • FIG. 8 is a sectional view taken along the line VI II-VI II in FIG.
  • FIG. 9 is a cross-sectional view taken along line IX-IX of the vehicle body cover and the charger case in FIG.
  • FIG. 10 is a sectional view taken along line XX in FIG.
  • FIG. 11 is a side view showing another embodiment in which the mounting position of the battery case is changed.
  • FIG. 12 is a cross-sectional view showing a modification of the connection portion between the battery case and the charger case.
  • FIG. 1 is a side view of an electric motorcycle according to the present invention
  • FIG. 2 is an enlarged side view showing a main part
  • FIG. 1 is drawn with a vehicle body cover broken.
  • Fig. 3 is a plan view of the main part
  • Fig. 4 is a plan view of the battery case
  • Fig. 5 is a rear view of the same
  • Fig. 6 is a bottom view of the same.
  • Fig. 7 is an enlarged cross-sectional view showing the connection between the battery case and the charger case
  • Fig. 8 is a cross-sectional view taken along line VI11-VIII in Fig. 2
  • Fig. 9 is the vehicle body cover and charger case in Fig. 2.
  • FIG. 10 is a sectional view taken along line IX-IX of FIG. 10, and FIG. 10 is a sectional view taken along line X-X in FIG.
  • FIG. 1 what is indicated by reference numeral 1 is the electric motorcycle according to the present embodiment.
  • the electric motorcycle 1 has a rear wheel drive motor (not shown) mounted in the rear end of a rear arm 3 rotatably supporting a rear wheel 2.
  • a rear wheel drive motor (not shown) mounted in the rear end of a rear arm 3 rotatably supporting a rear wheel 2.
  • FIG. Case 5 and charger case 6 are provided.
  • 7 is the front wheel
  • 8 is the front fork
  • 9 is the steering wheel
  • 10 is the body frame
  • 1 is the footrest
  • 1 is the battery case 5 below the seat 4
  • the charger case 6 1 shows a vehicle body cover that covers the like.
  • the body frame 10 of the electric motorcycle 1 is formed so as to extend downward from the head pipe 13 to the vicinity of the footrest portion 14 having the footrest 11 and extend substantially horizontally below the seat 4.
  • Left and right pair of down tubes 15 and 15 The down tube 15 is constituted by frame members such as a pair of left and right rear frames 16 and 16 extending upward from the horizontally extending portion 15a of the down tube 15.
  • the rear frame 16 is bent near the lower end of the seat so as to have a small inclination angle with respect to the horizontal, and the cross frame laid on the bent portion 16a.
  • the seat 4 is supported by a cross member (not shown) connecting the rear ends of the rear frames 16 with the eve 17.
  • the rear arm 3 is supported at the rear end of the down tube 15 via a pivot shaft 17 so as to be vertically swingable.
  • a rear cushion unit 18 is interposed between the rear arm 3 and the rear frame 16 on the left side of the vehicle body.
  • the battery case 5 has a box shape that can be divided in the front-rear direction of the vehicle body.
  • the battery 21 is formed so as to be smaller in the width direction, and contains a large number of cell-type batteries 21 therein.
  • the battery case 5 according to this embodiment is formed so that it can be inserted between lower halves 16 b located below the bent portion 16 a of the rear frame 16. It is fixed to the lower half 16b so as to extend in parallel with the lower half 16b.
  • the upper part of the battery case 5 is fixed to the mounting seat 23 on the rear frame 16 side by a fixing port 12.
  • the square tube 24 protruding from the bottom wall of the notch case 5 is fitted to the support plate 25 on the rear frame 16 side.
  • the support plate 25 is formed to have a braille shape in a plan view, and the square tube 24 of the battery case 5 is fitted into the hollow portion thereof from above.
  • a buffer sheet 26 is interposed between the support plate 25 and the bottom wall of the battery case 5.
  • the length of the battery case 5 in the longitudinal direction is formed to be long in the vertical direction so as to reach from the lower end of the lower half 16 b of the rear frame 16 to the upper end (bent portion). .
  • the length in the front-rear direction of the battery case 5 (the direction orthogonal to the longitudinal direction of the battery case 5 in a side view shown in FIG. 2) is such that the longitudinal direction of the cell-type battery 21 is parallel to the front-rear direction. It is formed so that it can be stored in a state.
  • the batteries 21 are housed in the battery case 5 in a state where they are arranged in a staggered shape when viewed from the front-back direction.
  • reference numeral 27 provided between the side walls of the battery case 5 and the battery 21 denotes a cushioning sheet made of foamed plastic.
  • the portion where the buffer sheet 27 is provided is hatched.
  • the reference numeral 28 provided on the battery 21 so as to overlap the battery 21 is a plate for electrically connecting the adjacent notches 21.
  • both ends in the longitudinal direction of the battery 21 are held by a battery holder 29 (see FIG. 8).
  • this battery holder 129 has three rows of batteries, each of which is composed of vertically arranged batteries 21, formed in the vehicle width direction, and these three rows of batteries are connected to each other.
  • a structure for holding the battery 21 is formed such that a gap D is formed therebetween.
  • the battery holder 29 holds the battery 21 in the middle row of the three rows of the batteries 21 by shifting the batteries 21 by 1/2 of the batteries 21 in both rows. As a result, the batteries 21 are formed so as to be held in a staggered arrangement.
  • the battery holder 5 holds the battery 21 in the longitudinal direction of the battery case 5 between the two rows of batteries 21 and the middle row of batteries 21. , Two ventilation spaces 31 are formed.
  • the lower end of the ventilation space 31 in the battery case 5 has two slits formed on the bottom wall of the battery 5 so as to be located inside the rectangular tube 24 as shown in FIG.
  • the battery 32 communicates with the space below the battery case 5 through the port 32.
  • the slit 32 constitutes an air inlet of the battery case 5 according to the present invention. These two slits 32 are located at positions facing the two ventilation spaces 31 so that air passing through the slits 32 can directly flow into the ventilation space 31. Is formed.
  • the space below the battery case 5 is open to the atmosphere via an opening 12a at the lower end of the vehicle body cover 12. For this reason, the traveling wind enters the slit 32 from the opening 11a during traveling.
  • the upper end of the ventilation space 31 is formed inside a front end of a charger case 6 to be described later through a cylinder 33 protruding from an upper wall of the battery case 5. Is communicated to the department.
  • the cylinder 33 is formed at a position biased toward the rear of the vehicle body of one battery case 5 so that air flows smoothly from inside the battery case 5 to the charger case 6 side.
  • the charger case 6 is for mounting a charger 34 for charging the battery 21 on a vehicle body. It is located between frames 16 and is supported by brackets 35 (see FIG. 10) on this rear frame 16. Further, as shown in FIG. 10, the charger case 6 includes a case body 36 opening upward and a lid 37 closing an opening at an upper end of the case body 36. It is formed in a box shape elongated in the direction, and as shown in FIG. 2, a charger 34 and an electric fan 38 described later are housed therein.
  • the bracket 35 for fixing the charger case 6 to the rear frame 16 is formed so as to have a U-shaped cross section that opens upward, and Upper ends on both sides in the vehicle width direction are welded to an upper half portion 16c located above the bent portion 16a.
  • the charger 35 is supported on the horizontal portion 35 a of the bracket 35 via the cushioning sheet 39, and the vehicle of the charger case 6 is mounted. It is performed by fixing both sides in the width direction to both sides of the bracket 35 with fixing bolts (not shown). As shown in FIG. 2 and FIG. 10, the charger case 6 is entirely covered with the vehicle body cover 12 while being supported by the rear frame 16.
  • the width of the charger case 6 is a dimension that can be inserted between the pair of left and right rear frames 16 as described above, and is substantially equal to the width of the battery case 5 as shown in FIG. It is formed as follows.
  • the length of the charger case 6 in the front-to-rear direction is formed so as to extend rearward from above the rear end (upper end) of the battery case 5 to the vicinity of the tail lamp 40 and the flasher lamp 41 and the like. It has been.
  • a column 42 a is erected on the bottom plate 42 of the charger case 6, and a charger 34 is mounted via the column 42 a.
  • the charger 34 has a ventilation space 43 between the bottom plate 42 and the lid 37 of the charger case 6 and the left and right side walls so as to surround the charger 34 in the vertical and horizontal directions. It is formed so as to be provided.
  • the ventilation space 43 in the charger case 6 is connected to a ventilation duct in the battery case 5 through a connection duct 44 formed at the front end of the charger case 6. 9, and as shown in FIG. 9, through an air discharge duct 45 formed at the rear end of the bottom plate 42, to a space 46 inside the body cover 12.
  • the space 46 in the vehicle body cover 12 is opened to the atmosphere via a discharge port 47 formed on the lower surface on the right side of the vehicle body at the rear end of the vehicle body cover 12.
  • the discharge port 47 of the vehicle body cover 12 and the opening at the lower end of the air discharge duct 45 of the charger case 6 are formed at positions where they do not face each other, as shown in FIG. Have been. That is, the cooling air passage downstream of the charger case 6 is formed to have a labyrinth shape.
  • the discharge port 47 constitutes a cooling air discharge port of the vehicle body cover according to the invention of claim 3, and the charging port according to the invention of claim 3 is formed by opening a lower end of the air discharge duct 45.
  • a cooling air outlet is formed in the case.
  • connection duct 44 is formed so as to cover the cylinder 33 of the battery case 5 from above, and has a ventilation space 43 in the charger case 6 and a ventilation space in the battery case 5.
  • the battery is connected to the cylinder 33 of the battery case 5 so as to communicate with the space 31.
  • a sealing sheet 48 made of foamed plastic is interposed between the connection duct 44 and the upper wall of the battery case 5, the spaces 31 and 43 for ventilation and the space outside the case are defined.
  • a sealing sheet 48 made of foamed plastic is interposed.
  • a cord reel 52 for accommodating a charging cable 51 is attached to an upper portion of the connection duct 44.
  • the cord reel 52 is connected to the connection duct so that the axial direction of the cable winding portion is parallel to the vertical direction.
  • the cable 51 is provided with a plug 51a connected to the outlet of the commercial power supply at the end, and a cable drawer formed by opening a lid (not shown) at the rear end of the body cover 12 It is pulled out of the body cover 12 from the mouth.
  • the cable 51 is held by a cord holding mechanism (not shown) at a portion drawn from the code reel 52.
  • the cord holding mechanism has a structure in which the drawn portion of the cable 51 is bent and held so as to exhibit a V-shape in a side view. It is configured to wipe off water adhering to the cable 51 by the bent portion when winding the inside.
  • reference numeral 53 what is indicated by reference numeral 53 provided at a position overlapping with the cable 51 is a battery management device for controlling charging of the battery 21.
  • the air discharge duct 45 formed at the rear end of the charger case 6 is formed to extend upward from one side of the rear end of the bottom plate 42 on the right side of the vehicle body, and has an electric fan at the upper end.
  • the electric fan 38 is disposed behind the charger 34, and is configured to suck air in the charger case 6 and discharge the air into the air discharge duct 45.
  • the electric fan 38 By operating the electric fan 38, the air in the charger case 6 is led out of the air exhaust duct 45 to the space 46 in the vehicle power bar 12, and the air is exhausted from the vehicle body cover 12. It is discharged out of the hippo through mouth 47.
  • the operation and stop of the electric fan 38 are switched based on the temperature of the charger 34 and the temperature of the battery 21 in the battery case 5. More specifically, the electric fan 38 is configured such that the temperature of the charger 34 becomes lower than the predetermined battery cooling start temperature, and the temperature of the battery 21 in the battery case 5 becomes the predetermined battery cooling start temperature. If the temperature is lower than the temperature, the operation is stopped, and the operation is performed when the temperature of the charger 34 is higher than the charger cooling start temperature or the temperature of the battery 21 is higher than the battery cooling start temperature. It is configured. That is, the electric fan 38 starts to operate when one of the charger 34 and the battery 21 reaches the cooling start temperature, and both the temperature of the charger 34 and the temperature of the battery 21 become the same.
  • the electric fan 38 may be configured to switch between operation and stop based on the temperature of only the charger 34. In this way, the electric fan 38 is operated and the air in the charger case 6 is discharged, so that the outside air is sucked into the battery case 5 from the slit 32 at the lower end thereof. That is, the outside air is sucked from the slit 32 into the two ventilation spaces 3 and 3 1 in the battery case 5, and passes through the ventilation space 31 from the upper end of the battery case 5 to the charger case. 6 flows into the front end.
  • the air that has flowed into the charger case 6 passes through the ventilation space 43 in the charger case 6 and the electric fan 38 and is discharged out of the case from the air discharge duct 45 at the rear end thereof. , car It is discharged into the atmosphere through the outlet 47 of the body cover. As described above, the cooling air flows in the battery case 5 and the charger case 6, whereby the battery 21 and the charger 34 are cooled.
  • the cooling air passage wall of the cooling air passage is substantially formed by the battery case 5 and the charger case 6 arranged in the longitudinal direction of the vehicle body, the cooling air flows through the cooling air passage.
  • the battery 21 and the charger 34 can be forcibly cooled by the cooling air.
  • the cooling air passage extends from the front end of the battery case 5 to the rear of the vehicle body, the traveling wind when the electric motorcycle 1 travels can also be used as the cooling wind.
  • the electric motorcycle 1 according to the present embodiment includes the body cover 11 that covers the battery case 5 and the charger case 6, the battery case 5 and the charger case 6 are not limited to the external shape. It can be formed into a shape that allows the cooling air to flow easily.
  • the electric motorcycle 1 according to this embodiment is formed so that the outlet 47 of the body cover 12 and the opening at the lower end of the air discharge duct 45 of the charger case 6 do not face each other. Therefore, the cooling air passage downstream of the charger case 6 is formed to have a labyrinth shape. For this reason, it is possible to suppress the sound of the electric fan 38 from leaking out of the vehicle body cover 12 as much as possible.
  • a plurality of cell-type batteries 21 are arranged in a staggered manner in a battery case 5, and a ventilating battery 21 is provided between the batteries 21. Since the space 31 is formed, a plurality of batteries 21 can be compactly arranged in the vehicle width direction and the vertical direction (the direction orthogonal to the longitudinal direction of the battery 21). Therefore, the cooling air can be efficiently applied to the battery 21 located at the center of the battery case 5, i.e., the battery 21 in the central row of the least-cooled battery among the three battery rows. become.
  • the battery case 5 is disposed in a state in which the battery case 5 is inclined downward and rearward below the sheet 4, so that the heat of the battery 21 rises in substantially the same direction as the direction in which the heat of the battery 21 rises by convection. Since the cooling air flows more quickly, the battery 21 can be cooled more efficiently.
  • the battery case 5 and the charger case 6 are disposed inside a pair of rear frames 16 arranged in the vehicle width direction, so that the vehicle body is compact in the vehicle width direction. Can be formed.
  • the electric fan 38 operates based on the result of monitoring the temperature of the battery 21 and the charger 38, and operates as needed.
  • the power can be reduced.
  • the temperature of the battery 21 can be prevented from excessively rising, the battery can be used for a long period of time and the battery can be prevented from being deteriorated. Become.
  • the battery case 5 can be mounted on a vehicle body as shown in FIG.
  • FIG. 11 is a side view showing another embodiment in which the mounting position of the battery case is changed.
  • the same or similar members as those described with reference to FIGS. 1 to 10 are denoted by the same reference numerals, and a detailed description thereof will be omitted as appropriate.
  • the electric motorcycle 100 shown in FIG. The top tube 101 is provided between the head pipe 13 of the body frame 10 and the bent portion 16a of the rear frame 16.
  • the top tubes 101 are provided so as to form a pair in the vehicle width direction, and a battery case 5 is attached to a lower portion thereof.
  • the battery case 5 is mounted so as to extend in the front-rear direction of the vehicle body along the top tube 101, and has an air inlet (not shown) formed at a front end portion 102.
  • Charger case 6 is connected to rear end 103
  • the battery 21 in the battery case 5 is housed so that its longitudinal direction points in the vertical direction. That is, the battery case 5 is configured such that the internal ventilation space 31 extends in the front-rear direction of the vehicle body.
  • a front end is connected to the rear end of the battery case 5, and a ventilation space 43 inside the charger case 6 is provided in the battery case 5.
  • the front end 102 of the battery case 5 is directed forward of the vehicle body, so that the traveling wind can be efficiently introduced into the ventilation space 31 in the battery case 5.
  • the cooling effect can be improved.
  • the battery case 5 and the charger case 6 are connected by the duct 44 integrally formed with the charger case 6, but as shown in FIG.
  • the battery case 6 and the charger case 6 may be connected using the body duct 44 '.
  • the passage wall of the cooling air passage is formed substantially by the battery case and the charger case arranged in the front-rear direction of the vehicle body.
  • the wind can forcibly cool the battery and charger.
  • the cooling air passage extends from the front end of the front case to the rear of the vehicle body, the traveling wind can be used as the cooling air. Therefore, it is possible to provide an electric motorcycle that can sufficiently cool the battery and the charger.
  • the battery having a lower temperature than the battery charger is first supplied by the cooling air flowing through the cooling air passage formed by the battery case disposed on the front side and the charger case disposed on the rear side. After cooling, the charger is cooled, and both the battery and the charger can be cooled reliably and sufficiently.
  • the battery case and the charger case can be formed into a shape in which the cooling air can easily flow, regardless of the external shape. Therefore, the cooling efficiency can be further improved.
  • the cooling air passage downstream of the charger case is formed so as to exhibit a labyrinth shape, and it is possible to minimize the sound of the electric fan from leaking to the outside. Therefore, the noise of the electric fan can be reduced.
  • a plurality of batteries can be compactly arranged in a direction orthogonal to the longitudinal direction, and the cooling air is hardly cooled even in the battery located at the center of the one case. You can hit it.
  • the battery can be efficiently cooled while the size of the battery case is reduced, and the capacity of the battery can be increased.
  • the battery case is disposed below the seat in a state of being inclined rearwardly upward, and the cooling air flows in substantially the same direction as the direction in which the heat of the battery rises by convection. Therefore, the battery can be cooled more efficiently.
  • the battery case and the charger case can be arranged inside a pair of frame members arranged in the vehicle width direction, the vehicle body can be formed to be compact in the vehicle width direction.
  • the electric fan operates as needed based on the result of monitoring the temperature of the charger. Therefore, the power consumption of the electric fan is reduced. Can be reduced.
  • the electric fan operates as needed based on the result of monitoring the temperature of the battery. For this reason, it is possible to prevent the temperature of the battery from excessively rising while adopting a configuration for reducing the power consumption of the electric fan. By suppressing the temperature rise of the battery, the battery can be used for a long period of time and the battery can be prevented from being deteriorated.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
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  • Automatic Cycles, And Cycles In General (AREA)

Abstract

Ventilation spaces (31, 43) are formed in a battery case (5) for storing a battery (21) and in a charger case (6) for storing a charger (34). The charger case (6) is positioned rearwardly of the battery case (5), and the front end of the charger case (6) is connected to the rear end of the battery case (5) so that the ventilation spaces (31, 43) in the two cases may communicate with each other. The front end of the battery case (5) is formed with an air suction port, and installed at the rear end of the charger case (6) is an electric fan (38) for discharging the air in the case.

Description

明 細 書 電動二輪車 技術分野  Description Electric motorcycle Technical field
本発明は、 バッテリーと充電器とを装備した電動二輪車に関するものである。 背景技術  The present invention relates to an electric motorcycle equipped with a battery and a charger. Background art
従来のこの種の電動車両としては、 例えば特許第 3 2 3 1 0 6 7号公報に開示 されたものがある。 この公報に示されている電動車両は、 一対の後輪を備えた電 動三輪車で、 後輪駆動用のモータを有する動力ュニッ 卜と、 前記モータに給電す るバッテリーを有するバッテリーボックスとが後輪どうしの間の空間に搭載され ている。  As a conventional electric vehicle of this type, for example, there is one disclosed in Japanese Patent No. 3231670. The electric vehicle disclosed in this publication is an electric three-wheeled vehicle having a pair of rear wheels, in which a power unit having a motor for driving rear wheels and a battery box having a battery for supplying power to the motor are provided at the rear. It is mounted in the space between the wheels.
前記バッテリーボックスは、 内部に複数のバッテリーが収納され、 前記動力ュ ニッ 卜の上方に搭載されている。 前記バッテリーボックスは、 内部が水平な仕切 板によつて下部収納室と上部収納室とに画成されており、 前記下部収納室に前記 バッテリ一が車体の前後方向に並ぶ状態で収納されている。 前記上部収納室は、 前記モータを制御するための制御ュニッ 卜と、 バッテリーを充電するための充電 器などが車体の前後方向に並ぶ状態で収納されている。  The battery box houses a plurality of batteries therein and is mounted above the power unit. The battery box is defined by a horizontal partition plate into a lower storage chamber and an upper storage chamber, and the batteries are stored in the lower storage chamber in a state in which the batteries are arranged in the front-rear direction of the vehicle body. . The upper storage chamber stores a control unit for controlling the motor, a charger for charging a battery, and the like in a state of being arranged in the front-rear direction of the vehicle body.
また、 前記バッテリーボックスには、 電動ファンと冷却風通路とを有する冷却 装置が設けられている。 この冷却装置は、 前記電動ファンによって空気を前記モ 一夕に供給し、 このモータを冷却した後の温風を前記下部収納室内に車体前側の 下部から供給するように構成されている。 この下部収納室内に供給された温風は 、 下部収納室の後端部に設けられた排出口からバッテリーボックス外に排出され る。 また、 前記冷却風通路の電動ファンより上流側は、 バッテリーボックスの車 体前側の上部を車幅方向に横切るように形成されており、 この車幅方向に延びる 部位に前記上部収容空間が連通されている。 すなわち、 この冷却装置は、 冷却風 通路を空気が流れることにより、 前記上部収容空間内にも空気が流れて制御ュニ ットゃ充電器などが冷却されるように構成されている。 Further, the battery box is provided with a cooling device having an electric fan and a cooling air passage. The cooling device is configured to supply air to the motor by the electric fan, and to supply warm air after cooling the motor into the lower storage chamber from a lower portion on the front side of the vehicle body. The warm air supplied to the lower storage chamber is discharged out of the battery box through a discharge port provided at the rear end of the lower storage chamber. The upstream side of the electric fan in the cooling air passage is formed so as to cross the upper part of the front side of the battery box in the vehicle width direction, and extends in the vehicle width direction. The upper housing space communicates with the portion. That is, the cooling device is configured such that when air flows through the cooling air passage, air also flows into the upper housing space and the control unit / charger and the like are cooled.
なお、 本出願人は、 本明細書に記載した先行技術文献情報で特定される先行技 術文献以外には、 本発明に関連する先行技術文献を出願時までに発見するには至 らなかった。  The applicant has not found any prior art documents related to the present invention other than the prior art documents specified in the prior art document information described in this specification by the time of filing. .
しかしながら、 上述したように構成された冷却装置は、 モータを通った後の温 風がバッテリ一収納空間に供給されるために、 バッテリ一の温度が高くなるとい う問題がある。 しかも、 この冷却装置は、 冷却風通路が車幅方向に延びていたり モータ内を通るように形成されていて通路の形状が複雑になるために、 送風量を 増大させることは困難である。 また、 この冷却装置は、 充電器が収容されている 前記上部収納室を冷却風が流れ難く、 充電器の温度が上昇し易いという問題もあ つた。 この上部収納室内を流れる冷却風を増やすためには、 専用のファンを設け ればよいが、 このように構成すると冷却装置の部品数が増大して車体が大型化し てしまう。  However, the cooling device configured as described above has a problem in that the temperature of the battery becomes high because the hot air after passing through the motor is supplied to the storage space of the battery. Moreover, in this cooling device, the cooling air passage extends in the vehicle width direction or is formed so as to pass through the motor, and the shape of the passage becomes complicated, so that it is difficult to increase the amount of air blown. In addition, this cooling device also has a problem that cooling air does not easily flow through the upper storage chamber in which the charger is stored, and the temperature of the charger easily rises. To increase the amount of cooling air flowing through the upper storage chamber, a dedicated fan may be provided. However, this configuration increases the number of components of the cooling device and increases the size of the vehicle body.
本発明はこのような問題点を解消するためになされたもので、 車体の小型化を 図りながら、 バッテリーと充電器とを充分に冷却することができるようにするこ とを目的とする。 発明の開示  The present invention has been made to solve such a problem, and an object of the present invention is to make it possible to sufficiently cool a battery and a charger while reducing the size of a vehicle body. Disclosure of the invention
この目的を達成するため、 本発明に係る電動二輪車は、 前記バッテリーを収納 するバッテリ一ケースと前記充電器を収納する充電器ケースの内部に通風用の空 間をそれぞれ形成し、 前記バッテリ一ケースと前記充電器ケーストを前後に配置 し、 両ケース内の前記通風用の空間どうしが互いに連通するように前側のケース の後端部に後側のケースの前端部を接続し、 前側のケースの前端部に空気吸込口 を形成し、 後側のケースの後端部にケース内の空気を排出する電動ファンを設け たものである。 In order to achieve this object, an electric motorcycle according to the present invention includes: a battery case for accommodating the battery; and a charger case for accommodating the charger, each having a ventilation space formed therein. And the charger case are arranged back and forth, and the front end of the rear case is connected to the rear end of the front case so that the ventilation spaces in both cases communicate with each other. An air inlet is formed at the front end, and an electric fan is provided at the rear end of the rear case to exhaust air from the case. It is something.
本発明によれば、 電動ファンが動作することによって、 前側ケ一スの前端部か ら外気がケース内に吸込まれ、 前側ケース内の通風用の空間を通って後端部から 後側ケースの前端部内に流入する。 後側ケース内に流入した空気は、 後側ケース 内の通風用の空間と電動ファンとを通って後端部からケース外に排出される。 こ のように冷却風が前側ケース内と後側ケース内とを流れることによって、 バッテ リーと充電器とが冷却される。  According to the present invention, when the electric fan operates, the outside air is sucked into the case from the front end of the front case, passes through the ventilation space in the front case, and moves from the rear end to the rear case. It flows into the front end. The air that has flowed into the rear case passes through the ventilation space in the rear case and the electric fan and is discharged out of the case from the rear end. As described above, the cooling air flows in the front case and the rear case, so that the battery and the charger are cooled.
このため、 車体の前後方向に並ぶバッテリ一ケースと充電器ケースとによって 実質的に冷却風通路の通路壁が形成されるから、 この冷却風通路を流れる冷却風 によってバッテリーと充電器とを強制的に冷却することができる。 しかも、 前記 冷却風通路は、 前側ケースの前端部から車体の後方に延設されているから、.走行 風をも冷却風として利用することができるようになる。  Therefore, the battery case and the charger case, which are arranged in the front-rear direction of the vehicle body, substantially form the passage wall of the cooling air passage, and the cooling air flowing through the cooling air passage forcibly connects the battery and the charger. Can be cooled. In addition, since the cooling air passage extends from the front end of the front case to the rear of the vehicle body, traveling air can be used as cooling air.
請求項 2に記載した発明に係る電動二輪車は、 請求項 1記載の電動二輪車にお いて、 前記バッテリーケースの後方に前記充電器ケースを位置付け、 両ケース内 の前記通風用の空間どうしが互いに連通するようにバッテリケースの後端部に充 電器ケースの前端部を接続し、 バッテリケースの前端部に空気吸込口を形成し、 充電器ケースの後端部にケース内の空気を排出する電動ファンを設けてなるもの である。  The electric motorcycle according to claim 2 is the electric motorcycle according to claim 1, wherein the charger case is positioned behind the battery case, and the ventilation spaces in both cases communicate with each other. Electric fan that connects the front end of the charger case to the rear end of the battery case, forms an air inlet at the front end of the battery case, and discharges air inside the case to the rear end of the charger case. Is provided.
この発明によれば、 前側に配置されたバッテリケースと後側に配置された充電 器ケースによって形成される冷却風通路を流れる冷却風によって、 充電器よりも 温度の低いバッテリを最初に冷却した後に充電器を冷却することとなり、 バッテ リと充電器の両方を確実かつ充分に冷却することができる。  According to the present invention, after the battery having a lower temperature than the charger is first cooled by the cooling air flowing through the cooling air passage formed by the battery case disposed on the front side and the charger case disposed on the rear side. This cools the charger, and both the battery and the charger can be cooled reliably and sufficiently.
請求項 3に記載した発明に係る電動二輪車は、 請求項 1又は 2に記載した発明 に係る電動二輪車において、 バッテリーケースと充電器ケースとを覆う車体カバ —を備えているものである。  An electric motorcycle according to a third aspect of the present invention is the electric motorcycle according to the first or second aspect of the present invention, further comprising a vehicle body cover that covers a battery case and a charger case.
この発明によれば、 バッテリ一ケースと充電器ケースは外観形状にとらわれる ことなく、 冷却風の流れ易い形状に形成することができる。 このため、 より一層 冷却効率を向上させることができる。 According to the present invention, the battery case and the charger case are embraced in appearance. Without this, it can be formed into a shape that allows the cooling air to flow easily. Therefore, the cooling efficiency can be further improved.
請求項 4に記載した発明に係る電動二輪車は、 請求項 3に記載した発明に係る 電動二輪車において、 車体カバ一の冷却風排出口と、 充電器ケースに形成された 冷却風排出口とは、 互いに対向することがない位置に形成されているものである この発明によれば、 充電器ケースより下流側の冷却風通路がラビリンス状を呈 するように形成される。  The electric motorcycle according to the fourth aspect of the present invention is the electric motorcycle according to the third aspect, wherein the cooling air outlet of the vehicle body cover and the cooling air outlet formed in the charger case are: According to the present invention, the cooling air passage downstream of the charger case is formed so as to have a labyrinth shape.
請求項 5に記載した発明に係る電動二輪車は、 請求項 1又は 1に記載した発明 に係る電動二輪車において、 バッテリ一ケース内に複数のセル型のバッテリーを 千鳥状に並べ、 バッテリーの間に通風用の空間を形成したものである。  The electric motorcycle according to the invention described in claim 5 is the electric motorcycle according to the invention described in claim 1 or 1, wherein a plurality of cell-type batteries are arranged in a zigzag pattern in one battery case, and ventilation is provided between the batteries. It is a space for use.
この発明によれば、 複数のバッテリーをその長手方向とは直交する方向にコン パク卜に並べることができ、 バッテリーケースの中央部に位置し最も冷却され難 ぃバッテリーにも冷却風を当てることができるようになる。  According to the present invention, a plurality of batteries can be compactly arranged in a direction orthogonal to the longitudinal direction, and the battery is located at the center of the battery case and is most difficult to be cooled. become able to.
請求項 6に記載した発明に係る電動二輪車は、 請求項 1ないし請求項 5のうち 何れか一つに記載した発明に係る電動二輪車において、 前輪と後輪との間に低床 な足載せ部を設けるとともに、 この足載せ部からシートへ向けて後上がりに延び る左右一対のフレーム部材を設け、 バッテリ一ケースと充電器ケースとを前記フ レーム部材の占有幅より車幅方向に小さくなるように形成し、 これらのフレーム 部材の間にバッテリーケースをこのフレーム部材と平行に延びるように配設し、 このバッテリ一ケースの上端部に充電器ケースを後方へ延びるように接続したも のである。  The electric motorcycle according to the invention described in claim 6 is the electric motorcycle according to any one of claims 1 to 5, wherein the footrest having a low floor is provided between the front wheel and the rear wheel. And a pair of left and right frame members extending upward from the footrest toward the seat so as to make the battery case and the charger case smaller in the vehicle width direction than the occupied width of the frame members. The battery case is disposed between the frame members so as to extend in parallel with the frame members, and the charger case is connected to the upper end of the battery case so as to extend rearward.
この発明によれば、 バッテリーケースがシートの下方に後上がりに傾斜した状 態で配設され、 バッテリ一の熱が対流により上昇する方向と略同方向に冷却風が 1しれ よつ (しなる 0 According to the present invention, the battery case is disposed below the seat in such a manner as to be inclined rearward and upward, and the cooling air flows in substantially the same direction as the direction in which the heat of the battery rises by convection. 0
また、 バッテリーケースおよび充電器ケースを車幅方向に並ぶ一対のフレーム 部材の内側に配設することができる。 In addition, a pair of frames that line the battery case and the charger case in the vehicle width direction It can be arranged inside the member.
請求項 7に記載した発明に係る電動二輪車は、 請求項 1ないし請求項 6のうち 何れか一つに記載した発明に係る電動二輪車において、 電動ファンを、 充電器の 温度が予め定めた充電器冷却開始温度より低いときは停止させ、 充電器の温度が 前記充電器冷却開始温度を上回ったときには作動させるものである。  An electric motorcycle according to a seventh aspect of the present invention is the electric motorcycle according to any one of the first to sixth aspects, wherein the electric fan is provided with a charger having a predetermined temperature. When the temperature is lower than the cooling start temperature, the operation is stopped, and when the temperature of the charger exceeds the cooling start temperature of the charger, the operation is started.
この発明によれば、 電動ファンは充電器に対する温度監視結果に基づいて動作 し、 必要に応じて作動するようになる。  According to the present invention, the electric fan operates based on the result of monitoring the temperature of the charger, and operates as needed.
請求項 8に記載した発明に係る電動二輪車は、 請求項 7に記載した発明に係る 電動二輪車において、 電動ファンを、 バッテリ一の温度が予め定めたバッテリー 冷却開始温度より低くかつ充電器の温度が充電器冷却開始温度より低いときは停 止させ、 バッテリーの温度が前記バッテリ一冷却開始温度を上回っているか、 ま たは充電器の温度が前記充電器冷却開始温度を上回っているときには作動させる ものである。  An electric motorcycle according to an eighth aspect of the present invention is the electric motorcycle according to the seventh aspect of the present invention, wherein the temperature of the battery is lower than a predetermined battery cooling start temperature and the temperature of the charger is lower than the predetermined temperature. Stop when the temperature is lower than the charger cooling start temperature, and activate when the battery temperature is higher than the battery cooling start temperature or when the charger temperature is higher than the charger cooling start temperature. It is.
この発明によれば、 電動ファンはバッテリーに対する温度監視結果にも基づい て動作し、 必要に応じて作動するようになる。 図面の簡単な説明  According to the present invention, the electric fan operates based on the result of monitoring the temperature of the battery, and operates as needed. BRIEF DESCRIPTION OF THE FIGURES
図 1は、 本発明に係る電動二輪車の側面図である。  FIG. 1 is a side view of an electric motorcycle according to the present invention.
図 2は、 本発明に係る電動二輪車の要部を拡大して示す側面図である。  FIG. 2 is an enlarged side view showing a main part of the electric motorcycle according to the present invention.
図 3は、 本発明に係る電動二輪車の要部の平面図である。  FIG. 3 is a plan view of a main part of the electric motorcycle according to the present invention.
図 4は、 バッテリーケースの平面図である。  FIG. 4 is a plan view of the battery case.
図 5は、 バッテリーケースの背面図である。  FIG. 5 is a rear view of the battery case.
図 6は、 バッテリーケースの底面図である。  Figure 6 is a bottom view of the battery case.
図 7は、 バッテリ一ケースと充電器ケースとの接続部分を拡大して示す断面図 である。  FIG. 7 is an enlarged cross-sectional view showing a connection portion between one battery case and a charger case.
図 8は、 図 2における VI I I— VI I I線断面図である。 図 9は、 図 2における車体カバーと充電器ケースの IX— IX線断面図である。 図 1 0は、 図 2における X -X線断面図である。 FIG. 8 is a sectional view taken along the line VI II-VI II in FIG. FIG. 9 is a cross-sectional view taken along line IX-IX of the vehicle body cover and the charger case in FIG. FIG. 10 is a sectional view taken along line XX in FIG.
図 1 1は、 バッテリーケースの搭載位置を変えた他の実施の形態を示す側面図 である。  FIG. 11 is a side view showing another embodiment in which the mounting position of the battery case is changed.
図 1 2は、 バッテリーケースと充電器ケースとの接続部分の変形例を示す断面 図である。 発明を実施するための最良の形態  FIG. 12 is a cross-sectional view showing a modification of the connection portion between the battery case and the charger case. BEST MODE FOR CARRYING OUT THE INVENTION
以下、 本発明に係る電動二輪車の一実施の形態を図 1ないし図 1 0によって詳 細に説明する。  Hereinafter, an embodiment of an electric motorcycle according to the present invention will be described in detail with reference to FIGS.
図 1は本発明に係る電動二輪車の側面図、 図 2は要部を拡大して示す側面図で 、 同図は車体カバ一を破断した状態で描いてある。 図 3は要部の平面図、 図 4は バッテリーケースの平面図、 図 5は同じく背面図、 図 6は同じく底面図である。 図 7はバッテリ一ケースと充電器ケースとの接続部分を拡大して示す断面図、 図 8は図 2における VI 1 1— VI I I線断面図、 図 9は図 2における車体カバーと充電器 ケースの IX— IX線断面図、 図 1 0は図 2における X -X線断面図である。  FIG. 1 is a side view of an electric motorcycle according to the present invention, and FIG. 2 is an enlarged side view showing a main part, and FIG. 1 is drawn with a vehicle body cover broken. Fig. 3 is a plan view of the main part, Fig. 4 is a plan view of the battery case, Fig. 5 is a rear view of the same, and Fig. 6 is a bottom view of the same. Fig. 7 is an enlarged cross-sectional view showing the connection between the battery case and the charger case, Fig. 8 is a cross-sectional view taken along line VI11-VIII in Fig. 2, and Fig. 9 is the vehicle body cover and charger case in Fig. 2. FIG. 10 is a sectional view taken along line IX-IX of FIG. 10, and FIG. 10 is a sectional view taken along line X-X in FIG.
これらの図において、 符号 1で示すものは、 この実施の形態による電動二輪車 である。 この電動二輪車 1は、 後輪 2を回転自在に支持するリャアーム 3の後端 部内に後輪駆動用のモータ （図示せず） が搭載され、 図 2に示すように、 シート 4の下方にバッテリーケース 5と充電器ケ一ス 6とが配設されている。 図 1にお いて、 7は前輪を示し、 8はフロントフォーク、 9は操向ハンドル、 1 0は車体 フレーム、 1 1はフートレスト、 1 2はシート 4の下方のバッテリーケース 5や 充電器ケース 6などを覆う車体カバ一を示す。  In these figures, what is indicated by reference numeral 1 is the electric motorcycle according to the present embodiment. The electric motorcycle 1 has a rear wheel drive motor (not shown) mounted in the rear end of a rear arm 3 rotatably supporting a rear wheel 2. As shown in FIG. Case 5 and charger case 6 are provided. In Fig. 1, 7 is the front wheel, 8 is the front fork, 9 is the steering wheel, 10 is the body frame, 1 is the footrest, 1 is the battery case 5 below the seat 4 and the charger case 6 1 shows a vehicle body cover that covers the like.
この電動二輪車 1の車体フレーム 1 0は、 へッ ドパイプ 1 3から前記フートレ スト 1 1を有する足乗せ部 1 4の近傍へ後下がりに延びてシート 4の下方で略水 平に延びるように形成された左右一対のダウンチューブ 1 5， 1 5と、 これらの ダウンチューブ 1 5の水平延在部 1 5 aから後上がりに延びる左右一対の後部フ レーム 1 6， 1 6などのフレーム部材によって構成されている。 この後部フレー ム 1 6は、 図 2に示すように、 シートの下端部の近傍で水平に対する傾斜角度が 小さくなるように折曲げられており、 この折曲部分 1 6 aに横架されたクロスパ イブ 1 7と、 後部フレーム 1 6の後端部どうしを接続するクロスメンバ （図示せ ず） などによって前記シート 4を支持している。 The body frame 10 of the electric motorcycle 1 is formed so as to extend downward from the head pipe 13 to the vicinity of the footrest portion 14 having the footrest 11 and extend substantially horizontally below the seat 4. Left and right pair of down tubes 15 and 15 The down tube 15 is constituted by frame members such as a pair of left and right rear frames 16 and 16 extending upward from the horizontally extending portion 15a of the down tube 15. As shown in FIG. 2, the rear frame 16 is bent near the lower end of the seat so as to have a small inclination angle with respect to the horizontal, and the cross frame laid on the bent portion 16a. The seat 4 is supported by a cross member (not shown) connecting the rear ends of the rear frames 16 with the eve 17.
前記リャアーム 3は、 図 1に示すように、 前記ダウンチューブ 1 5の後端部に ピボッ ト軸 1 7を介して上下方向に揺動自在に支持されている。 このリャアーム 3と車体左側の前記後部フレーム 1 6との間にはリャクッションュニッ ト 1 8が 介装されている。  As shown in FIG. 1, the rear arm 3 is supported at the rear end of the down tube 15 via a pivot shaft 17 so as to be vertically swingable. A rear cushion unit 18 is interposed between the rear arm 3 and the rear frame 16 on the left side of the vehicle body.
前記バッテリーケース 5は、 図 2、 図 4〜図 6に示すように、 車体の前後方向 に分割可能な箱状であって、 車幅方向に対をなす前記後部フレーム 1 6の占有幅 より車幅方向に小さくなるように形成され、 内部に多数のセル型のバッテリー 2 1が収納されている。 この実施の形態によるバッテリーケース 5は、 後部フレ一 ム 1 6における前記折曲部分 1 6 aより下に位置する下半部 1 6 bどうしの間に 挿入することができるように形成されており、 この下半部 1 6 bにこの下半部 1 6 bと平行に延びる状態で固定されている。  As shown in FIGS. 2 and 4 to 6, the battery case 5 has a box shape that can be divided in the front-rear direction of the vehicle body. The battery 21 is formed so as to be smaller in the width direction, and contains a large number of cell-type batteries 21 therein. The battery case 5 according to this embodiment is formed so that it can be inserted between lower halves 16 b located below the bent portion 16 a of the rear frame 16. It is fixed to the lower half 16b so as to extend in parallel with the lower half 16b.
このバッテリーケース 5の前記下半部 1 6 bへの固定は、 図 8に示すように、 バッテリーケース 5の上部を固定用ポルト 1 2によって後部フレーム 1 6側の取 付座 2 3に固定するとともに、 図 2， 5および図 6に示すように、 ノ ッテリ一ケ —ス 5の底壁に突設された角筒 2 4を後部フレーム 1 6側の支持用プレート 2 5 に嵌合させることによって行っている。 この支持用プレート 2 5は、 図 6に示す ように、 平面視において口字状を呈するように形成され、 その中空部分にバッテ リーケース 5の前記角筒 2 4が上方から嵌入されている。 この実施の形態では、 この支持用プレート 2 5とバッテリ一ケース 5の底壁との間に緩衝用のシート 2 6が介装されている。 また、 このバッテリーケース 5の長手方向の長さは、 前記後部フレーム 1 6の 下半部 1 6 bの下端部から上端部 （折曲部分） に達するように上下方向に長く形 成されている。 バッテリーケース 5の前後方向 （図 2に示す側面視においてバッ テリ一ケース 5の長手方向とは直交する方向） の長さは、 セル型バッテリー 2 1 をその長手方向が前記前後方向と平行になる状態で収納することができるように 形成されている。 To fix the battery case 5 to the lower half 16b, as shown in FIG. 8, the upper part of the battery case 5 is fixed to the mounting seat 23 on the rear frame 16 side by a fixing port 12. At the same time, as shown in Figs. 2, 5 and 6, the square tube 24 protruding from the bottom wall of the notch case 5 is fitted to the support plate 25 on the rear frame 16 side. Has gone by. As shown in FIG. 6, the support plate 25 is formed to have a braille shape in a plan view, and the square tube 24 of the battery case 5 is fitted into the hollow portion thereof from above. In this embodiment, a buffer sheet 26 is interposed between the support plate 25 and the bottom wall of the battery case 5. The length of the battery case 5 in the longitudinal direction is formed to be long in the vertical direction so as to reach from the lower end of the lower half 16 b of the rear frame 16 to the upper end (bent portion). . The length in the front-rear direction of the battery case 5 (the direction orthogonal to the longitudinal direction of the battery case 5 in a side view shown in FIG. 2) is such that the longitudinal direction of the cell-type battery 21 is parallel to the front-rear direction. It is formed so that it can be stored in a state.
前記バッテリ一 2 1は、 図 5に示すように、 前記前後方向から見て千鳥状を呈 するように並ぶ状態でバッテリ一ケース 5内に収納されている。 図 5において、 バッテリーケース 5の両側壁とバッテリー 2 1 との間に位置するように設けられ た符号 2 7で示すものは、 発砲プラズチックからなる緩衝用のシートである。 図 5においては、 この緩衝用シート 2 7が設けられる部位にハッチングが施されて いる。 また、 図 5において、 バッテリー 2 1 と重なるようにょうに設けられた符 号 2 8で示すものは、 隣り合うノ ッテリー 2 1どうしを電気的に接続するための プレートである。  As shown in FIG. 5, the batteries 21 are housed in the battery case 5 in a state where they are arranged in a staggered shape when viewed from the front-back direction. In FIG. 5, reference numeral 27 provided between the side walls of the battery case 5 and the battery 21 denotes a cushioning sheet made of foamed plastic. In FIG. 5, the portion where the buffer sheet 27 is provided is hatched. In FIG. 5, the reference numeral 28 provided on the battery 21 so as to overlap the battery 21 is a plate for electrically connecting the adjacent notches 21.
バッテリー 2 1を千鳥状に並べてバッテリーケース 5内に収納するに当たって は、 バッテリー 2 1の長手方向の両端部をバッテリーホルダー 2 9 (図 8参照） に保持させることによって行われている。 このバッテリーホルダ一 2 9は、 図 5 に示すように、 上下方向に並べたバッテリー 2 1からなるバッテリーの列が車幅 方向に 3列形成されるとともに、 これらの 3列のバッテリ一の列どうしの間に隙 間 Dが形成されるようにバッテリー 2 1を保持する構造が採られている。 また、 このバッテリーホルダー 2 9は、 前記 3列のバッテリー 2 1の列のうち、 中央の 列のバッテリー 2 1を両側の列のバッテリー 2 1よりバッテリ 1 / 2個分だけ上 方へずらして保持することにより、 各バッテリー 2 1を千鳥状に配列した状態で 保持するように形成されている。  When the batteries 21 are arranged in a zigzag pattern and stored in the battery case 5, both ends in the longitudinal direction of the battery 21 are held by a battery holder 29 (see FIG. 8). As shown in FIG. 5, this battery holder 129 has three rows of batteries, each of which is composed of vertically arranged batteries 21, formed in the vehicle width direction, and these three rows of batteries are connected to each other. A structure for holding the battery 21 is formed such that a gap D is formed therebetween. In addition, the battery holder 29 holds the battery 21 in the middle row of the three rows of the batteries 21 by shifting the batteries 21 by 1/2 of the batteries 21 in both rows. As a result, the batteries 21 are formed so as to be held in a staggered arrangement.
リーホルダ一 2 9にバッテリー 2 1を保持させることにより、 両側の列のバッ テリー 2 1 と中央の列のバッテリー 2 1 との間にバッテリーケース 5の長手方向 に延びる二箇所の通風用の空間 3 1が形成される。 The battery holder 5 holds the battery 21 in the longitudinal direction of the battery case 5 between the two rows of batteries 21 and the middle row of batteries 21. , Two ventilation spaces 31 are formed.
このバッテリーケース 5内の通風用の空間 3 1の下端部は、 図 6に示すように 、 バッテリー.ケース 5の底壁に前記角筒 2 4の内側に位置するように形成された 二つのスリッ ト 3 2を介してバッテリ一ケース 5の下方の空間に連通されている 。 前記スリツ ト 3 2によって本発明に係るバッテリーケース 5の空気吸込口が構 成されている。 これらの二つのスリット 3 2は、 このスリット 3 2を通った空気 が前記通風用の空間 3 1に直接流入することができるように、 前記二箇所の通風 用の空間 3 1 と対向する位置に形成されている。  The lower end of the ventilation space 31 in the battery case 5 has two slits formed on the bottom wall of the battery 5 so as to be located inside the rectangular tube 24 as shown in FIG. The battery 32 communicates with the space below the battery case 5 through the port 32. The slit 32 constitutes an air inlet of the battery case 5 according to the present invention. These two slits 32 are located at positions facing the two ventilation spaces 31 so that air passing through the slits 32 can directly flow into the ventilation space 31. Is formed.
前記バッテリーケース 5の下方の空間は、 図 2に示すように、 前記車体カバー 1 2の下端の開口 1 2 aを介して大気に開放されている。 このため、 走行時に走 行風がこの開口 1 1 aから前記スリッ ト 3 2に入るようになる。  As shown in FIG. 2, the space below the battery case 5 is open to the atmosphere via an opening 12a at the lower end of the vehicle body cover 12. For this reason, the traveling wind enters the slit 32 from the opening 11a during traveling.
一方、 前記通風用の空間 3 1の上端部は、 図 7に示すように、 バッテリーケー ス 5の上壁に突設された円筒 3 3を介して後述する充電器ケース 6の前端部の内 部に連通されている。 前記円筒 3 3は、 バッテリーケース 5内から充電器ケース 6側へ空気が円滑に流れるように、 バッテリ一ケース 5の車体後側に偏る位置に 形成されている。  On the other hand, as shown in FIG. 7, the upper end of the ventilation space 31 is formed inside a front end of a charger case 6 to be described later through a cylinder 33 protruding from an upper wall of the battery case 5. Is communicated to the department. The cylinder 33 is formed at a position biased toward the rear of the vehicle body of one battery case 5 so that air flows smoothly from inside the battery case 5 to the charger case 6 side.
前記充電器ケース 6は、 図 2に示すように、 前記バッテリー 2 1を充電するた めの充電器 3 4を車体に搭載するためのもので、 シート 4の下方であって左右一 対の後部フレーム 1 6どうしの間に配設され、 この後部フレーム 1 6にブラケッ ト 3 5 (図 1 0参照） によって支持されている。 また、 この充電器ケース 6は、 図 1 0に示すように、 上方へ向けて開口するケース本体 3 6と、 このケース本体 3 6の上端の開口を閉塞する蓋体 3 7とによって車体の前後方向に長くなる箱状 に形成され、 図 2に示すように、 内部に充電器 3 4と後述する電動ファン 3 8と が収納されている。  As shown in FIG. 2, the charger case 6 is for mounting a charger 34 for charging the battery 21 on a vehicle body. It is located between frames 16 and is supported by brackets 35 (see FIG. 10) on this rear frame 16. Further, as shown in FIG. 10, the charger case 6 includes a case body 36 opening upward and a lid 37 closing an opening at an upper end of the case body 36. It is formed in a box shape elongated in the direction, and as shown in FIG. 2, a charger 34 and an electric fan 38 described later are housed therein.
充電器ケース 6を後部フレーム 1 6に固定する前記ブラケッ ト 3 5は、 上方に 向けて開放する断面コ字状を呈するように形成され、 後部フレーム 1 6における 前記折曲部分 1 6 aより上に位置する上半部 1 6 cに車幅方向の両側の上端部が 溶接されている。 充電器ケース 6の後部フレーム 1 6への固定は、 前記ブラケッ ト 3 5の水平部 3 5 aに緩衝用のシート 3 9を介して充電器ケース 6を支承させ 、 この充電器ケース 6の車幅方向の両側部をブラケッ ト 3 5の両側部に図示して いない固定用ボルトによって固定することによって行われている。 この充電器ケ —ス 6は、 図 2および図 1 0に示すように、 後部フレーム 1 6に支持された状態 で全体が車体カバ一 1 2によって覆われている。 The bracket 35 for fixing the charger case 6 to the rear frame 16 is formed so as to have a U-shaped cross section that opens upward, and Upper ends on both sides in the vehicle width direction are welded to an upper half portion 16c located above the bent portion 16a. To fix the charger case 6 to the rear frame 16, the charger 35 is supported on the horizontal portion 35 a of the bracket 35 via the cushioning sheet 39, and the vehicle of the charger case 6 is mounted. It is performed by fixing both sides in the width direction to both sides of the bracket 35 with fixing bolts (not shown). As shown in FIG. 2 and FIG. 10, the charger case 6 is entirely covered with the vehicle body cover 12 while being supported by the rear frame 16.
この充電器ケース 6の横幅は、 上述したように左右一対の後部フレーム 1 6ど うしの間に揷入できる寸法であって、 図 3に示すように、 前記バッテリーケース 5の横幅と略等しくなるように形成されている。 また、 この充電器ケース 6の前 後方向の長さは、 前記バッテリーケース 5の後端部 （上端部） の上からテールラ ンプ 4 0ゃフラッシャーランプ 4 1などの近傍まで後方に延びるように形成され ている。  The width of the charger case 6 is a dimension that can be inserted between the pair of left and right rear frames 16 as described above, and is substantially equal to the width of the battery case 5 as shown in FIG. It is formed as follows. The length of the charger case 6 in the front-to-rear direction is formed so as to extend rearward from above the rear end (upper end) of the battery case 5 to the vicinity of the tail lamp 40 and the flasher lamp 41 and the like. It has been.
充電器ケース 6の底板 4 2には、 図 1 0に示すように、 支柱 4 2 aが立設され 、 この支柱 4 2 aを介して充電器 3 4が取り付けられている。 この充電器 3 4は 、 充電器ケース 6の底板 4 2および蓋体 3 7と左右両側壁との間に充電器 3 4を 上下方向と左右方向とから囲むように通風用の空間 4 3が設けられるように形成 されている。  As shown in FIG. 10, a column 42 a is erected on the bottom plate 42 of the charger case 6, and a charger 34 is mounted via the column 42 a. The charger 34 has a ventilation space 43 between the bottom plate 42 and the lid 37 of the charger case 6 and the left and right side walls so as to surround the charger 34 in the vertical and horizontal directions. It is formed so as to be provided.
この充電器ケース 6内の通風用の空間 4 3は、 図 7に示すように、 充電器ケ一 ス 6の前端部に形成された接続用ダクト 4 4を介して前記バッテリーケース 5内 の通風用の空間 3 1に連通されるとともに、 図 9に示すように、 前記底板 4 2の 後端部に形成された空気排出用ダクト 4 5を介して車体カバー 1 2内の空間 4 6 に連通されている。 この車体カバ一 1 2内の空間 4 6は、 車体カバー 1 2の後端 部の車体右側の下面に形成された排出口 4 7を介して大気に開放されている。  As shown in FIG. 7, the ventilation space 43 in the charger case 6 is connected to a ventilation duct in the battery case 5 through a connection duct 44 formed at the front end of the charger case 6. 9, and as shown in FIG. 9, through an air discharge duct 45 formed at the rear end of the bottom plate 42, to a space 46 inside the body cover 12. Have been. The space 46 in the vehicle body cover 12 is opened to the atmosphere via a discharge port 47 formed on the lower surface on the right side of the vehicle body at the rear end of the vehicle body cover 12.
この車体カバ一 1 2の排出口 4 7と、 充電器ケース 6の空気排出用ダクト 4 5 の下端の開口とは、 図 9に示すように、 互いに対向することがない位置に形成さ れている。 すなわち、 充電器ケース 6より下流側の冷却風通路は、 ラビリンス状 を呈するように形成されている。 前記排出口 4 7によって、 請求項 3記載の発明 に係る車体カバーの冷却風排出口が構成され、 空気排出用ダクト 4 5の下端の開 口によつて、 請求項 3記載の発明に係る充電器ケースに形成された冷却風排出口 が構成されている。 As shown in FIG. 9, the discharge port 47 of the vehicle body cover 12 and the opening at the lower end of the air discharge duct 45 of the charger case 6 are formed at positions where they do not face each other, as shown in FIG. Have been. That is, the cooling air passage downstream of the charger case 6 is formed to have a labyrinth shape. The discharge port 47 constitutes a cooling air discharge port of the vehicle body cover according to the invention of claim 3, and the charging port according to the invention of claim 3 is formed by opening a lower end of the air discharge duct 45. A cooling air outlet is formed in the case.
前記接続用ダクト 4 4は、 バッテリーケース 5の前記円筒 3 3を上方から覆う ように形成されており、 充電器ケース 6内の通風用の空間 4 3とバッテリーケ一 ス 5内の通風用の空間 3 1 とを連通する状態でバッテリ一ケース 5の円筒 3 3に 接続されている。 この実施の形態では、 この接続用ダクト 4 4とバッテリ一ケ一 ス 5の上壁との間に、 前記通風用の空間 3 1， 4 3とケース外との空間とを画成 するために発泡プラスチックからなるシール用シート 4 8が介装されている。 この接続用ダクト 4 4の上部には、 図 2に示すように、 充電用ケーブル 5 1を 収容するためのコ一ドリール 5 2が取付けられている。 このコードリール 5 2は 、 ケーブル卷取部分の軸線方向が鉛直方向と平行になるように前記接続用ダクト The connection duct 44 is formed so as to cover the cylinder 33 of the battery case 5 from above, and has a ventilation space 43 in the charger case 6 and a ventilation space in the battery case 5. The battery is connected to the cylinder 33 of the battery case 5 so as to communicate with the space 31. In this embodiment, between the connection duct 44 and the upper wall of the battery case 5, the spaces 31 and 43 for ventilation and the space outside the case are defined. A sealing sheet 48 made of foamed plastic is interposed. As shown in FIG. 2, a cord reel 52 for accommodating a charging cable 51 is attached to an upper portion of the connection duct 44. The cord reel 52 is connected to the connection duct so that the axial direction of the cable winding portion is parallel to the vertical direction.
4 4とシート 4の底板 4 aとの間に略水平に配設されている。 このコードリ一ルIt is disposed substantially horizontally between 44 and the bottom plate 4a of the seat 4. This code reel
5 2のケーブル 5 1は、 商用電源のコンセントに接続するプラグ 5 1 aが先端に 設けられ、 車体カバ一 1 2の後端部の図示していないリツ ドを開くことによって 形成されたケーブル引き出し口から車体カバー 1 2外に引き出される。 The cable 51 is provided with a plug 51a connected to the outlet of the commercial power supply at the end, and a cable drawer formed by opening a lid (not shown) at the rear end of the body cover 12 It is pulled out of the body cover 12 from the mouth.
また、 このケーブル 5 1は、 コードリール 5 2から引き出された部分が図示し ていないコード保持機構によって保持されている。 このコード保持機構は、 図 2 に示すように、 前記ケーブル 5 1の前記引き出し部分を側面視において V字状を 呈するように屈曲させて保持する構造が採られ、 ケーブル 5 1をコードリール 5 2内に卷き取るときに前記屈曲部分によってケ一ブル 5 1に付着している水を拭 い取るように構成されている。 図 2において前記ケーブル 5 1 と重なる位置に設 けられた符号 5 3で示すものは、 バッテリー 2 1の充電を制御するためのバッテ リ一マネジメント装置である。 充電器ケース 6の後端部に形成された前記空気排出用ダクト 4 5は、 前記底板 4 2の後端部における車体右側の一側部から上方に延びるように形成され、 上端 部に電動ファン 3 8の空気出口 3 8 aが接続されている。 この電動ファン 3 8は 、 前記充電器 3 4の後方に配置され、 充電器ケース 6内の空気を吸引して前記空 気排出用ダクト 4 5内に吐出するように構成されている。 この電動ファン 3 8が 動作することによって、 充電器ケース 6内の空気が空気排出用ダクト 4 5から車 体力バー 1 2内の空間 4 6に導出され、 さらに、 車体カバー 1 2内から前記排出 口 4 7を通ってカバ一外に排出される。 In addition, the cable 51 is held by a cord holding mechanism (not shown) at a portion drawn from the code reel 52. As shown in FIG. 2, the cord holding mechanism has a structure in which the drawn portion of the cable 51 is bent and held so as to exhibit a V-shape in a side view. It is configured to wipe off water adhering to the cable 51 by the bent portion when winding the inside. In FIG. 2, what is indicated by reference numeral 53 provided at a position overlapping with the cable 51 is a battery management device for controlling charging of the battery 21. The air discharge duct 45 formed at the rear end of the charger case 6 is formed to extend upward from one side of the rear end of the bottom plate 42 on the right side of the vehicle body, and has an electric fan at the upper end. 38 air outlets 38a are connected. The electric fan 38 is disposed behind the charger 34, and is configured to suck air in the charger case 6 and discharge the air into the air discharge duct 45. By operating the electric fan 38, the air in the charger case 6 is led out of the air exhaust duct 45 to the space 46 in the vehicle power bar 12, and the air is exhausted from the vehicle body cover 12. It is discharged out of the hippo through mouth 47.
前記電動ファン 3 8は、 充電器 3 4の温度とバッテリーケース 5内のバッテリ —2 1の温度に基づいて作動 '停止が切換えられる。 詳述すると、 電動ファン 3 8は、 充電器 3 4の温度が予め定めた充電器冷却開始温度より低くなり、 かつバ ッテリーケ―ス 5内のバッテリー 2 1の温度が予め定めたバッテリー冷却開始温 度より低くなるときは停止し、 充電器 3 4の温度が前記充電器冷却開始温度を上 回っているか、 またはバッテリー 2 1の温度が前記バッテリー冷却開始温度を上 回っているときには作動するように構成されている。 すなわち、 電動ファン 3 8 は、 充電器 3 4とバッテリー 2 1のうち何れか一方が前記冷却開始温度に達する と作動を開始し、 充電器 3 4の温度とバッテリー 2 1の温度の両方が前記冷却開 始温度より低くなつたときに停止する。 なお、 電動ファン 3 8は、 充電器 3 4の みの温度に基づいて作動 .停止が切換えられるように構成することもできる。 このように電動ファン 3 8が作動して充電器ケース 6内の空気が排出されるこ とにより、 バッテリーケース 5内にその下端部のスリッ ト 3 2から外気が吸入さ れる。 すなわち、 外気が前記スリツ ト 3 2からバッテリーケース 5内の二箇所の 通風用の空間 3 し 3 1に吸込まれ、 この通風用の空間 3 1を通ってバッテリー ケース 5の上端部から充電器ケース 6の前端部内に流入する。 充電器ケース 6内 に流入した空気は、 充電器ケース 6内の通風用の空間 4 3と電動ファン 3 8とを 通ってその後端部の空気排出用ダクト 4 5からケース外に排出され、 さらに、 車 体カバ一 1 2の排出口 4 7を通って大気中に排出される。 このように冷却風がバ ッテリ一ケース 5内と充電器ケース 6内とを流れることによって、 バッテリー 2 1 と充電器 3 4とが冷却される。 The operation and stop of the electric fan 38 are switched based on the temperature of the charger 34 and the temperature of the battery 21 in the battery case 5. More specifically, the electric fan 38 is configured such that the temperature of the charger 34 becomes lower than the predetermined battery cooling start temperature, and the temperature of the battery 21 in the battery case 5 becomes the predetermined battery cooling start temperature. If the temperature is lower than the temperature, the operation is stopped, and the operation is performed when the temperature of the charger 34 is higher than the charger cooling start temperature or the temperature of the battery 21 is higher than the battery cooling start temperature. It is configured. That is, the electric fan 38 starts to operate when one of the charger 34 and the battery 21 reaches the cooling start temperature, and both the temperature of the charger 34 and the temperature of the battery 21 become the same. Stops when the temperature drops below the cooling start temperature. It should be noted that the electric fan 38 may be configured to switch between operation and stop based on the temperature of only the charger 34. In this way, the electric fan 38 is operated and the air in the charger case 6 is discharged, so that the outside air is sucked into the battery case 5 from the slit 32 at the lower end thereof. That is, the outside air is sucked from the slit 32 into the two ventilation spaces 3 and 3 1 in the battery case 5, and passes through the ventilation space 31 from the upper end of the battery case 5 to the charger case. 6 flows into the front end. The air that has flowed into the charger case 6 passes through the ventilation space 43 in the charger case 6 and the electric fan 38 and is discharged out of the case from the air discharge duct 45 at the rear end thereof. , car It is discharged into the atmosphere through the outlet 47 of the body cover. As described above, the cooling air flows in the battery case 5 and the charger case 6, whereby the battery 21 and the charger 34 are cooled.
このため、 この電動二輪車 1においては、 車体の前後方向に並ぶバッテリーケ —ス 5と充電器ケース 6とによって実質的に冷却風通路の通路壁が形成されるか ら、 この冷却風通路を流れる冷却風によってバッテリー 2 1 と充電器 3 4とを強 制的に冷却することができる。 しかも、 前記冷却風通路は、 バッテリーケース 5 の前端部から車体の後方に延設されているから、 この電動二輪車 1が走行すると きの走行風をも冷却風として利用することができる。  For this reason, in the electric motorcycle 1, since the passage wall of the cooling air passage is substantially formed by the battery case 5 and the charger case 6 arranged in the longitudinal direction of the vehicle body, the cooling air flows through the cooling air passage. The battery 21 and the charger 34 can be forcibly cooled by the cooling air. Moreover, since the cooling air passage extends from the front end of the battery case 5 to the rear of the vehicle body, the traveling wind when the electric motorcycle 1 travels can also be used as the cooling wind.
また、 この実施の形態による電動二輪車 1は、 バッテリーケース 5と充電器ケ —ス 6とを覆う車体カバー 1 1を備えているから、 バッテリーケース 5と充電器 ケース 6は外観形状にとらわれることなく、 冷却風の流れ易い形状に形成するこ とができる。  In addition, since the electric motorcycle 1 according to the present embodiment includes the body cover 11 that covers the battery case 5 and the charger case 6, the battery case 5 and the charger case 6 are not limited to the external shape. It can be formed into a shape that allows the cooling air to flow easily.
さらに、 この実施の形態による電動二輪車 1は、 車体カバー 1 2の排出口 4 7 と、 充電器ケース 6の空気排出用ダクト 4 5の下端の開口とが互いに対向するこ とがない位置に形成されているから、 充電器ケース 6より下流側の冷却風通路が ラビリンス状を呈するように形成される。 このため、 電動ファン 3 8の音が車体 カバー 1 2の外に漏洩するのを可及的少なく抑えることができる。  Furthermore, the electric motorcycle 1 according to this embodiment is formed so that the outlet 47 of the body cover 12 and the opening at the lower end of the air discharge duct 45 of the charger case 6 do not face each other. Therefore, the cooling air passage downstream of the charger case 6 is formed to have a labyrinth shape. For this reason, it is possible to suppress the sound of the electric fan 38 from leaking out of the vehicle body cover 12 as much as possible.
さらにまた、 この実施の形態による電動二輪車 1においては、 バッテリーケー ス 5内に複数のセル型のバッテリー 2 1が千鳥状を呈するように並べられ、 バッ テリ一 2 1どうしの間に通風用の空間 3 1が形成されているから、 複数のバッテ リー 2 1を車幅方向および上下方向 （バッテリー 2 1の長手方向とは直交する方 向） にコンパクトに並べることができる。 このため、 バッテリーケース 5の中央 部側に位置するバッテリー 2 1、 すなわち 3列のバッテリー列のうち最も冷却さ れ難い中央のバッテリ一列のバッテリー 2 1に効率よく冷却風を当てることがで きるようになる。 加えて、 この電動二輪車 1は、 バッテリーケース 5がシ一ト 4の下方に後上が りに傾斜した状態で配設されており、 バッテリー 2 1の熱が対流により上昇する 方向と略同方向に冷却風が流れるようになるから、 バッテリー 2 1をより一層効 率よく冷却することができる。 Furthermore, in the electric motorcycle 1 according to this embodiment, a plurality of cell-type batteries 21 are arranged in a staggered manner in a battery case 5, and a ventilating battery 21 is provided between the batteries 21. Since the space 31 is formed, a plurality of batteries 21 can be compactly arranged in the vehicle width direction and the vertical direction (the direction orthogonal to the longitudinal direction of the battery 21). Therefore, the cooling air can be efficiently applied to the battery 21 located at the center of the battery case 5, i.e., the battery 21 in the central row of the least-cooled battery among the three battery rows. become. In addition, in the electric motorcycle 1, the battery case 5 is disposed in a state in which the battery case 5 is inclined downward and rearward below the sheet 4, so that the heat of the battery 21 rises in substantially the same direction as the direction in which the heat of the battery 21 rises by convection. Since the cooling air flows more quickly, the battery 21 can be cooled more efficiently.
また、 この電動二輪車 1は、 バッテリーケース 5および充電器ケース 6が車幅 方向に並ぶ一対の後部フレーム 1 6の内側に配設されているから、 車体を車幅方 向にコンパクトになるように形成することができる。  Also, in the electric motorcycle 1, the battery case 5 and the charger case 6 are disposed inside a pair of rear frames 16 arranged in the vehicle width direction, so that the vehicle body is compact in the vehicle width direction. Can be formed.
さらに、 電動ファン 3 8は、 ノ ッテリー 2 1 と充電器 3 8とに対する温度監視 結果に基づいて動作し、 必要に応じて作動するようになるから、 この電動二輪車 1においては、 電動ファンの消費電力を低減することができる。 特に、 バッテリ 一 2 1の温度が過度に上昇するのを阻止することができることから、 バッテリー を長い期間にわたって使用することができるようになるとともに、 バッテリ一が 劣化するのを防ぐことができるようになる。  Further, the electric fan 38 operates based on the result of monitoring the temperature of the battery 21 and the charger 38, and operates as needed. The power can be reduced. In particular, since the temperature of the battery 21 can be prevented from excessively rising, the battery can be used for a long period of time and the battery can be prevented from being deteriorated. Become.
バッテリーケース 5は、 図 1 1に示すように車体に搭載することができる。 図 1 1はバッテリーケースの搭載位置.を変えた他の実施の形態を示す側面図で ある。 同図において、 前記図 1〜図 1 0によって説明したものと同一もしくは同 等の部材については、 同一符号を付し、 ここにおいて詳細な説明は適宜省略する 図 1 1に示す電動二輪車 1 0 0は、 車体フレーム 1 0のへッ ドパイプ 1 3と後 部フレーム 1 6の折曲部分 1 6 aとの間にトップチューブ 1 0 1が設けられてい る。 このトップチューブ 1 0 1は、 車幅方向に対をなすように設けられ、 下部に バッテリーケ一ス 5が取付けられている。  The battery case 5 can be mounted on a vehicle body as shown in FIG. FIG. 11 is a side view showing another embodiment in which the mounting position of the battery case is changed. In the figure, the same or similar members as those described with reference to FIGS. 1 to 10 are denoted by the same reference numerals, and a detailed description thereof will be omitted as appropriate. The electric motorcycle 100 shown in FIG. The top tube 101 is provided between the head pipe 13 of the body frame 10 and the bent portion 16a of the rear frame 16. The top tubes 101 are provided so as to form a pair in the vehicle width direction, and a battery case 5 is attached to a lower portion thereof.
この実施の形態によるバッテリーケース 5は、 前記トップチューブ 1 0 1に沿 つて車体の前後方向に延びるように搭載され、 前端部 1 0 2に空気吸込口 （図示 せず） が形成されるとともに、 後端部 1 0 3に充電器ケース 6が接続されている このバッテリーケース 5内のバッテリー 2 1は、 その長手方向が上下方向を指 向するように収納されている。 すなわち、 このバッテリーケース 5は、 内部の通 風用の空間 3 1が車体の前後方向に延びるように構成されている。 The battery case 5 according to this embodiment is mounted so as to extend in the front-rear direction of the vehicle body along the top tube 101, and has an air inlet (not shown) formed at a front end portion 102. Charger case 6 is connected to rear end 103 The battery 21 in the battery case 5 is housed so that its longitudinal direction points in the vertical direction. That is, the battery case 5 is configured such that the internal ventilation space 31 extends in the front-rear direction of the vehicle body.
この実施の形態による充電器ケース 6は、 バッテリ一ケース 5の後端部に前端 部が接続されており、 充電器ケース 6の内部の通風用の空間 4 3がバッテリーケ ース 5内の通風用の空間 3 1に連通されている。  In the charger case 6 according to this embodiment, a front end is connected to the rear end of the battery case 5, and a ventilation space 43 inside the charger case 6 is provided in the battery case 5. Space 31 for communication.
このようにバッテリーケース 5をトツプチュ一ブ 1 0 1に取付けても前記実施 の形態と同等の効果が得られる。 特に、 この実施の形態では、 バッテリーケース 5の前端部 1 0 2が車体の前方を指向するようになるため、 走行風をバッテリー ケース 5内の通風用の空間 3 1に効率よく導入することができ、 冷却効果を向上 させることができる。  As described above, even if the battery case 5 is attached to the top tube 101, the same effect as that of the above embodiment can be obtained. In particular, in this embodiment, the front end 102 of the battery case 5 is directed forward of the vehicle body, so that the traveling wind can be efficiently introduced into the ventilation space 31 in the battery case 5. The cooling effect can be improved.
なお上記実施形態では、 充電器ケ一ス 6に一体形成されたダクト 4 4によって バッテリケース 5と充電器ケース 6 とを接続したが、 図 1 2に示すように、 ゴム 等で形成された別体のダクト 4 4 ' を用いて上記バッテリケース 6と充電器ケ一 ス 6とを接続しても勿論構わない。  In the above embodiment, the battery case 5 and the charger case 6 are connected by the duct 44 integrally formed with the charger case 6, but as shown in FIG. Of course, the battery case 6 and the charger case 6 may be connected using the body duct 44 '.
また上記実施形態では、 バッテリケース 5を前側に配置し、 充電器ケース 6を 後側に配置した例を説明したが、 本発明では、 上記と逆に充電器ケース 6を前側 に配置し、 バッテリケース 5を後側に配置しても良い。 産業上の利用可能性  Further, in the above embodiment, an example was described in which the battery case 5 was disposed on the front side and the charger case 6 was disposed on the rear side. However, in the present invention, the charger case 6 was disposed on the front side, Case 5 may be arranged on the rear side. Industrial applicability
以上説明したように本発明によれば、 車体の前後方向に並ぶバッテリ一ケース と充電器ケースとによつて実質的に冷却風通路の通路壁が形成されるから、 この 冷却風通路を流れる冷却風によってバッテリーと充電器とを強制的に冷却するこ とができる。 しかも、 前記冷却風通路は、 前側のケースの前端部から車体の後方 に延設されているから、 走行風をも冷却風として利用することができるようにな る。 したがって、 バッテリーと充電器とを充分に冷却することができる電動二輪車 を提供することができる。 As described above, according to the present invention, the passage wall of the cooling air passage is formed substantially by the battery case and the charger case arranged in the front-rear direction of the vehicle body. The wind can forcibly cool the battery and charger. In addition, since the cooling air passage extends from the front end of the front case to the rear of the vehicle body, the traveling wind can be used as the cooling air. Therefore, it is possible to provide an electric motorcycle that can sufficiently cool the battery and the charger.
請求項 2の発明によれば、 前側に配置されたバッテリケースと後側に配置され た充電器ケースによって形成される冷却風通路を流れる冷却風によって、 充電器 よりも温度の低いバッテリを最初に冷却した後に充電器を冷却することとなり、 バッテリと充電器の両方を確実かつ充分に冷却することができる。  According to the second aspect of the present invention, the battery having a lower temperature than the battery charger is first supplied by the cooling air flowing through the cooling air passage formed by the battery case disposed on the front side and the charger case disposed on the rear side. After cooling, the charger is cooled, and both the battery and the charger can be cooled reliably and sufficiently.
請求項 3記載の発明によれば、 バッテリ一ケースと充電器ケースは外観形状に とらわれることなく、 冷却風の流れ易い形状に形成することができる。 このため 、 より一層冷却効率を向上させることができる。  According to the third aspect of the present invention, the battery case and the charger case can be formed into a shape in which the cooling air can easily flow, regardless of the external shape. Therefore, the cooling efficiency can be further improved.
請求項 4記載の発明によれば、 充電器ケースより下流側の冷却風通路がラビリ ンス状を呈するように形成され、 電動ファンの音が外部に漏洩するのを可及的少 なく抑えることができるから、 電動ファンの騒音を低減することができる。 。 請求項 5記載の発明によれば、 複数のバッテリーをその長手方向とは直交する 方向にコンパクトに並べることができ、 ノ ッテリ一ケースの中央部に位置する冷 却され難いバッテリーにも冷却風を当てることができるようになる。  According to the invention described in claim 4, the cooling air passage downstream of the charger case is formed so as to exhibit a labyrinth shape, and it is possible to minimize the sound of the electric fan from leaking to the outside. Therefore, the noise of the electric fan can be reduced. . According to the invention as set forth in claim 5, a plurality of batteries can be compactly arranged in a direction orthogonal to the longitudinal direction, and the cooling air is hardly cooled even in the battery located at the center of the one case. You can hit it.
このため、 バッテリーケースの小型化を図りながら、 ノ ッテリーを効率よく冷 却することができるとともに、 バッテリーの容量を多くとることができる。 請求項 6記載の発明によれば、 バッテリーケースがシートの下方に後上がりに 傾斜した状態で配設され、 バッテリーの熱が対流により上昇する方向と略同方向 に冷却風が流れるようになる。 このため、 バッテリーをより一層効率よく冷却す ることができる。  As a result, the battery can be efficiently cooled while the size of the battery case is reduced, and the capacity of the battery can be increased. According to the invention described in claim 6, the battery case is disposed below the seat in a state of being inclined rearwardly upward, and the cooling air flows in substantially the same direction as the direction in which the heat of the battery rises by convection. Therefore, the battery can be cooled more efficiently.
また、 バッテリーケースおよび充電器ケースを車幅方向に並ぶ一対のフレーム 部材の内側に配設することができるから、 車体を車幅方向にコンパクトになるよ うに形成することができる。  Further, since the battery case and the charger case can be arranged inside a pair of frame members arranged in the vehicle width direction, the vehicle body can be formed to be compact in the vehicle width direction.
請求項 7記載の発明によれば、 電動ファンは充電器に対する温度監視結果に基 づき、 必要に応じて作動するようになる。 このため、 電動ファンの消費電力を低 減することができる。 According to the invention as set forth in claim 7, the electric fan operates as needed based on the result of monitoring the temperature of the charger. Therefore, the power consumption of the electric fan is reduced. Can be reduced.
請求項 8記載の発明によれば、 電動ファンはバッテリーに対する温度監視結果 に基づき、 必要に応じて作動するようになる。 このため、 電動ファンの消費電力 を低減する構成を採りながら、 バッテリーの温度が過度に上昇するのを阻止する ことができる。 ノ ッテリ一の温度上昇が抑えられることにより、 バッテリーを長 い期間にわたって使用することができるようになるとともに、 バッテリ一が劣化 するのを防ぐことができる。  According to the invention described in claim 8, the electric fan operates as needed based on the result of monitoring the temperature of the battery. For this reason, it is possible to prevent the temperature of the battery from excessively rising while adopting a configuration for reducing the power consumption of the electric fan. By suppressing the temperature rise of the battery, the battery can be used for a long period of time and the battery can be prevented from being deteriorated.

Claims

請 求 の 範 囲 The scope of the claims
1 . バッテリーと充電器とを装備した電動二輪車であって、 前記バッテリーを収 納するバッテリ一ケースと前記充電器を収納する充電器ケースの内部に通風用の 空間をそれぞれ形成し、 前記バッテリーケースと前記充電器ケーストを前後に配 置し、 両ケース内の前記通風用の空間どうしが互いに連通するように前側のケ一 スの後端部に後側のケースの前端部を接続し、 前側のケースの前端部に空気吸込 口を形成し、 後側のケースの後端部にケース内の空気を排出する電動ファンを設 けてなる電動二輪車。  1. An electric motorcycle equipped with a battery and a charger, wherein a ventilation space is formed in each of a battery case for accommodating the battery and a charger case for accommodating the charger. And the charger case are arranged front and rear, and the front end of the rear case is connected to the rear end of the front case so that the ventilation spaces in both cases communicate with each other. An electric motorcycle that has an air inlet at the front end of the case and an electric fan that exhausts air from the case at the rear end of the rear case.
2 . 請求項 1記載の電動二輪車において、 前記バッテリーケースの後方に前記充 電器ケースを位置付け、 両ケ一ス内の前記通風用の空間どうしが互いに連通する ようにノ ッテリケースの後端部に充電器ケースの前端部を接続し、 バッテリケー スの前端部に空気吸込口を形成し、 充電器ケースの後端部にケース内の空気を排 出する電動ファンを設けてなる電動二輪車。  2. The electric motorcycle according to claim 1, wherein the charger case is positioned behind the battery case, and a rear end portion of the battery case is charged so that the ventilation spaces in both cases communicate with each other. An electric motorcycle comprising a front end of a battery case connected, an air inlet formed at a front end of a battery case, and an electric fan for discharging air from the case at a rear end of a charger case.
3 . 請求項 1又は 2記載の電動二輪車において、 バッテリーケースと充電器ケー スとを覆う車体カバ一を備えている電動二輪車。  3. The electric motorcycle according to claim 1, further comprising a vehicle body cover that covers the battery case and the charger case.
4 . 請求項 3記載の電動二輪車において、 車体カバーの冷却風排出口と、 充電器 ケースに形成された冷却風排出口とは、 互いに対向することがない位置に形成さ れている電動二輪車。  4. The electric motorcycle according to claim 3, wherein the cooling air outlet of the vehicle body cover and the cooling air outlet formed in the charger case are formed at positions where they do not face each other.
5 . 請求項 1又は 2記載の電動二輪車において、 バッテリーケース内に複数のセ ル型のバッテリーを千鳥状に並べ、 バッテリ一の間に通風用の空間を形成したこ とを特徴とする電動二輪車。  5. The electric motorcycle according to claim 1 or 2, wherein a plurality of cell-type batteries are arranged in a zigzag pattern in a battery case, and a ventilation space is formed between the batteries. .
6 . 請求項 1ないし請求項 5のうち何れか一つに記載の電動二輪車において、 前 輪と後輪との間に低床な足載せ部を設けるとともに、 この足載せ部からシートへ 向けて後上がりに延びる左右一対のフレーム部材を設け、 バッテリ一ケースと充 電器ケースとを前記フレーム部材の占有幅より車幅方向に小さくなるように形成 し、 これらのフレーム部材の間にバッテリーケ一スをこのフレーム部材と平行に 延びるように配設し、 このバッテリーケースの上端部に充電器ケースを後方へ延 びるように接続したことを特徴とする電動二輪車。 6. The electric motorcycle according to any one of claims 1 to 5, wherein a low-floor footrest is provided between the front wheel and the rear wheel, and the footrest is directed toward the seat. A pair of left and right frame members extending rearward is provided, and a battery case and a charger case are formed so as to be smaller in the vehicle width direction than the occupied width of the frame members, and a battery case is interposed between these frame members. Parallel to this frame member An electric motorcycle, wherein the charger case is connected to the upper end of the battery case so as to extend rearward.
7 . 請求項 1ないし請求項 6のうち何れか一つに記載の電動二輪車において、 電 動ファンを、 充電器の温度が予め定めた充電器冷却開始温度より低いときは停止 させ、 充電器の温度が前記充電器冷却開始温度を上回つたときには作動させるこ とを特徴とする電動二輪車。  7. The electric motorcycle according to any one of claims 1 to 6, wherein the electric fan is stopped when the temperature of the charger is lower than a predetermined charger cooling start temperature, and the electric fan is stopped. An electric motorcycle characterized by being activated when the temperature exceeds the charger cooling start temperature.
8 . 請求項 7記載の電動二輪車において、 電動ファンを、 バッテリーの温度が予 め定めたバッテリ一冷却開始温度より低くかつ充電器の温度が充電器冷却開始温 度より低いときは停止させ、 バッテリ一の温度が前記バッテリ一冷却開始温度を 上回っているか、 または充電器の温度が前記充電器冷却開始温度を上回っている ときには作動させることを特徴とする電動二輪車。  8. The electric motorcycle according to claim 7, wherein the electric fan is stopped when the temperature of the battery is lower than a predetermined battery cooling start temperature and the charger temperature is lower than the charger cooling start temperature. An electric two-wheeled vehicle, wherein the motor is operated when one temperature is higher than the battery first cooling start temperature or when the temperature of the charger is higher than the charger cooling start temperature.
PCT/JP2004/001152 2003-02-07 2004-02-04 Electrically powered motorcycle WO2004069638A1 (en)

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CN110126958A (en) * 2018-02-02 2019-08-16 光阳工业股份有限公司 The battery case of electric vehicle opens control structure
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CN111989260B (en) * 2018-04-17 2021-07-13 本田技研工业株式会社 Saddle-ride type electric vehicle
CN109795590A (en) * 2019-04-10 2019-05-24 陈祥 A kind of electric motor car saddle with charger
JP7473575B2 (en) 2022-03-18 2024-04-23 本田技研工業株式会社 Battery cover and battery cover assembly

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