JP3336529B2 - Electric scooter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric scooter which runs by using an electric motor as a drive source.

[0002]

2. Description of the Related Art In recent years, a scooter having a structure in which a rear wheel is driven by an electric motor has attracted attention. In this type of electric scooter, an electric motor is mounted instead of an engine, and a plurality of batteries for supplying power to the electric motor are mounted on a vehicle body.

[0003] A charger used for charging a battery is often mounted on a vehicle body. In this type of electric scooter, a power supply side connection cable is mainly connected to a charging port provided on the vehicle body. Had to be charged.

[0004]

However, in the electric scooter thus configured, there is a problem in which part of the vehicle body the charging port is provided. That is, if a structure is adopted in which a dedicated lid is provided on the vehicle body cover and a charging port is provided inside the lid, some kind of locking device must be provided on the lid from the viewpoint of preventing tampering. In addition, a problem occurs in that the connection portion is exposed from the opening of the lid during charging.

In order to prevent such an increase in the number of parts and a complicated structure, a charging port is provided in a storage box below the seat, and the charging port is closed by a sheet provided to be openable and closable with respect to the storage box. What should I do? However, simply providing a charging port in the storage box reduces the storage space, and charging is performed to prevent the connection cable from being crushed by the seal between the upper opening edge of the storage box and the sheet. Cannot completely close the seat. That is, if charging is performed without a roof, rainwater tends to enter the storage box during charging. In addition, dust easily enters in addition to rainwater, and luggage cannot be stored during charging.

SUMMARY OF THE INVENTION The present invention has been made in view of such a problem, and has a structure in which a charging port is closed by a sheet. In this structure, the capacity of the storage box is suppressed from being reduced, and the sheet is completely closed during charging. It is an object to obtain an electric scooter that can do it.

[0007]

An electric scooter according to the present invention has a structure in which a sheet is pivotally supported by a storage box and an upper opening of the storage box is opened and closed by the sheet, and a pivot portion of the sheet and an inner wall surface of the storage box are provided. And a charging port is provided between them.

[0008]

When the seat is opened, the charging port is exposed, and when the seat is closed, the charging port becomes invisible from outside the vehicle body. Further, the charging port is provided outside the storage box, and the connection cable on the power supply side does not cross the seal between the upper opening edge of the storage box and the seat.

[0009]

FIG. 1 to FIG. 13 show an embodiment of the present invention.
This will be described in detail. 1 is a side view of an electric scooter according to the present invention, FIG. 2 is a plan view showing a vehicle body frame of the electric scooter according to the present invention, FIG. 3 is a perspective view of the vehicle body frame and a battery box, and FIG. FIG. 4 is a cross-sectional view taken along line IV-IV of the box support portion.

FIG. 5 is an enlarged side view showing a potentiometer mounting portion, FIG. 6 is a plan view of the potentiometer mounting portion, and FIG. 7 is a front view thereof. 8 is an enlarged side sectional view showing a head pipe portion of the electric scooter according to the present invention, FIG. 9 is an enlarged side sectional view showing a mudguard plate portion, and FIG. 10 is a plan view of the mudguard plate portion. FIG. 10 is a view as viewed from the direction of arrow A in FIG. 9. 9 shows a cross section taken along line IX-IX in FIG.

FIG. 11 is a block diagram showing the structure of the electric system of the electric scooter according to the present invention. FIG. 12 is an enlarged plan view showing a seat pivot portion of the storage box. FIG. 13 is a line AA in FIG. It is sectional drawing.

In these figures, reference numeral 1 denotes an electric scooter according to the present invention. In this electric scooter 1, a low-floor footrest 4 is formed between a steering handle 2 and a seat 3.
Further, a vehicle body cover 5 is provided below the seat 3, and a storage box 6 that opens upward in the vehicle body cover 5 is mounted. The storage box 6 is integrally formed of a synthetic resin. The front end of the seat 3 is pivotally supported by the storage box 6, and the rear opening of the seat 3 is lifted upward from the state shown in FIG. 1 so that the upper opening of the storage box 6 is exposed. Is configured. Reference numeral 7 denotes a helmet stored in the storage box 6.

Reference numeral 8 denotes a locking device for the seat 3. The locking device 8 is supported and fixed to a rear seat receiver of a body frame, which will be described later, and a key insertion hole is exposed through the body cover 5 to the left side of the body. .

Reference numeral 9 denotes a vehicle body frame of the electric scooter 1. The vehicle body frame 9 includes the steering wheel 2 and the front wheels 1
And a main pipe 13 extending downward from the head pipe 12 and extending below the footrest 4 to extend below the seat 3. , Two right and left rear pipes 14 connected to the rear end of the main pipe 13,
14 and so on.

The main pipe 13 is bent so that a portion below the footrest 4 is substantially horizontal, and a rear side of the seat 3 is inclined upward and rearward from a portion just below the front end of the seat 3. The rear pipes 14 are connected to the rear end portion inclined upward and rearward through connecting members 15.

The rear pipe 14 is formed of a pipe formed in a straight line, and is welded to the connecting member 15 so as to incline upward. The rear ends of the left and right rear pipes 14 are connected to each other by a cross member 16 as shown in FIG. In addition, these rear pipes 14
Between each other, a front seat receiver 17, a rear seat receiver 18, and a carrier bracket 19 formed in a substantially gate shape in a front view are welded. The storage box 6 and the seat 3 include a front seat receiver 17 and a rear seat receiver 18.
It is supported by.

A power unit 20 serving as a power source of the electric scooter 1 is vertically swingably connected to the rear pipe 14. The power unit 20 has a unit swing structure in which a front upper portion is pivotally supported by the rear pipe 14 via a horizontal support shaft 21 and a rear end of the power unit 20 cantileverly supports a rear wheel 22. The support shaft 21 is supported by being bridged between brackets 23 of the right and left rear pipes 14.

A rear cushion unit 24 is interposed between the rear part of the power unit 20 and the left rear pipe 14. The upper end of the rear cushion unit 24 is pivotally supported by a mounting bracket 16a provided on the cross member 16.

The power unit 20 has almost the same structure as that of a unit swing type engine used for a conventional motorcycle except for the difference between the engine and the electric motor. Transmission case 2 to support
0a and the electric motor 2 mounted in the transmission case 20a.
0b and a V-belt type automatic transmission 20c. Further, a main stand 20d is attached to a lower portion on the front side of the transmission case 20a.

The electric motor 20b is positioned substantially at the center in the vehicle width direction, as shown in FIG. 11, and its rotating shaft supporting the rotor is a so-called horizontal type which is oriented in the vehicle width direction. . The coil, which is the stator of the electric motor 20b, is supplied with power from a battery described later via a controller. An encoder 20e for detecting the number of rotations of the electric motor 20b is mounted on the shaft end of the electric motor 20b on the right side of the vehicle body.

A battery serving as a power source for the power unit 20 is mounted below the footrest 4. Reference numeral 25 denotes a battery, which is inserted into a battery box 26 supported by the main pipe 13.

The battery box 26 is integrally formed of a synthetic resin, and has a structure in which a pair of left and right battery storage portions 26a formed in a box shape opening upward as shown in FIG. 3 are connected via a plate-like connection portion 26b. It has been. The left and right battery storage portions 26a are formed to have a size to accommodate the batteries 25 in a front-to-rear direction, and cutouts 26c for passing battery cables (not shown) and electrical cables are formed in the front and rear wall portions. Have been.

In the battery box 26, the main pipe 13 faces the space between the left and right battery housings 26 a from below, and is mounted on a box receiver 27 provided on the main pipe 13 as a battery support bracket. The box receiver 27 is bolted.

That is, when this battery box 26 is used, the batteries 25 are mounted on the left and right sides of the main pipe 13 along the main pipe 13, and two batteries 25 are mounted on one side of the main pipe 13, four in total. Can be mounted.

As shown in FIGS. 2 to 4, the box receiver 27 extends in the vehicle width direction and connects a pair of front and rear support plates 27a to which the battery box 26 is bolted, and connects the front and rear support plates 27a to each other. It is formed in a frame shape from a pair of left and right cross members 27b. Each support plate 27a is fixed to the main pipe 13 via left and right stays 27c extending downward from the main pipe 13.

A side stand 28 is attached to the cross member 27b. As shown in FIG. 3, the side stand 28 includes a connecting plate 28a welded to the cross member 27b, a stand body 28c rotatably connected to the connecting plate 28a via a pivot pin 28b, and a stand body 28c. 28c and a return spring 28d elastically mounted between the connecting plate 28a. The position of the side stand 28 is set so that a bank angle can be secured. That is, the cross member 27b
Is positioned closer to the center of the vehicle than the outer edge of the battery box 26, and a connecting plate 28a is fixed to the cross member 27b.

In FIG. 4, a member indicated by reference numeral 29 located above the main pipe 13 is a footrest plate forming a floor of the footrest part 4. The foot rest plate 29 is supported by the main pipe 13 via gate-shaped stays 30, 31 and a plate-shaped bracket 32. The stays 30, 31 are arranged at positions corresponding to the battery box supporting stays 27c as shown in FIGS. 3 and 4, and project upward from the main pipe 13, respectively. A plate-shaped bracket 32 is provided on the upper end of each of the stays 30 and 31.
Are screwed respectively. The plate-shaped bracket 32 is attached with its longitudinal direction directed in the vehicle width direction in the same manner as the box receiver 27.

A member indicated by reference numeral 33 attached to the lower surface of the plate-shaped bracket 32 is a rubber pressing member for contacting the upper surface of the battery 25 and holding the battery 25 in the battery box 26.

Reference numeral 34 denotes the electric motor 20 of the power unit 20.
This is a controller for controlling the rotation of b. The controller 34 is configured to control the amount of current supplied from the battery 25 to the electric motor 20b according to the amount of rotation of the steering handle 2 with the right throttle grip 2a. A potentiometer is used to convert the amount of rotation of the throttle grip 2a into an electric signal. The potentiometer is shown at 35 in the figure.

The potentiometer 35 is formed as shown in FIGS. 5 to 9, and is mounted on the front side of the head pipe 12 via a bracket 36. A rotation input section 35 a as a rotation shaft of the potentiometer 35 is connected to a right throttle grip 2 a of the steering handle 2 via a wire drive mechanism 37.

The wire drive mechanism 37 is constructed by rotatably supporting a support shaft 39 on the bracket 36 and connecting an operation lever 40 and a connecting member 41 to the support shaft 39. The operation lever 40 is engaged with an operation wire 42 that is pulled or loosened according to the turning operation of the throttle grip 2a, and the connecting member 41 is connected to the turning input portion 35a of the potentiometer 35 via the claw piece 41a. Is engaged. Reference numeral 43 denotes an outer stopper on which the outer (not shown) of the operation wire 42 is hung, which is formed integrally with the bracket 36. The connection structure between the throttle grip 2a and the operation wire 42 is the same as that used for a conventional engine-driven scooter, and a detailed description is omitted here.

That is, when the throttle grip 2a is rotated, the operation lever 40 and the connecting member 41 are rotated.
9, the pawl 41a of the connecting member 41 rotates the rotation input portion 35a of the potentiometer 35. Therefore, an electric signal corresponding to the amount of rotation of the throttle grip 2a is output from the potentiometer 35 to the controller 34, so that the throttle grip 2a
Is operated, the rotation speed of the electric motor 20b changes.

In FIG. 8, reference numeral 44 is a front fender, 45 is a leg shield, and 46 is an inner fender. The front fender 44 and the leg shield 45 are connected to each other and formed so as to surround the head pipe 12 of the vehicle body. The inner fender 46 is provided at the lower opening of the space surrounded by the inner fenders.
Is positioned.

That is, the potentiometer 35 is located near the head pipe 12 and the front fender 4
4, leg shield 45 and inner fender 46
, Etc., are arranged at a portion surrounded by a cover forming the outer shape of the vehicle body.

As shown in FIG. 9, the controller 34 has a heat sink 47 attached to a lower portion thereof, and is fixed to the vehicle body frame 9 via the heat sink 47. The heat sink 47 has a cooling fin (not shown), and a front part thereof is screwed to a stay 48 of the rear seat receiver 18. The rear portion is screwed to a controller bracket 49 which is installed at the rear ends of the left and right rear pipes 14 so as to connect the two rear pipes 14 to each other.

By fixing the heat sink 47 in contact with the metal member of the vehicle body frame 9 as described above, heat generated by the controller 34 can be conducted to the vehicle body frame 9 via the heat sink 47, and the controller 34 can be efficiently operated. It can be cooled. Although the heat sink 47 is surrounded by the body cover 5,
The louvers 5a and 5b for guiding air are provided in the vehicle body cover 5 so that the inside of the vehicle body cover 5 is easily ventilated. When the cooling efficiency of the controller 34 increases, a small heat sink can be used, and the durability of the controller 34 itself increases.

When the controller 34 controls the motor 20b of the power unit 20, the motor 20b
Although it is necessary to perform tuning adjustment with the encoder 20e of b, the controller 34 can perform adjustment by inserting a driver through an adjustment hole (not shown) of the storage box 6 with the sheet 3 opened. It is configured as follows.

Here, the configuration of the electric system of the electric scooter 1 will be described with reference to FIG. The controller 34 is connected to a power relay 50 as a power switch in addition to the power unit 20 and the potentiometer 35 described above, and is connected to the battery 25 via the power relay 50 and the fuse 51. Reference numeral 52 connected to the power relay 50 is a start indicator for switching ON and OFF of the power relay 50.

Reference numeral 53 denotes a charger for charging the battery 25. A contact 53a for connecting a power outlet side cable is connected to a lead wire 53b at an input portion of the charger 53.
And is supported and fixed to the connecting member 15 of the vehicle body frame 9 as shown in FIG. The contact 53a is formed in an elongated plate shape, and is press-fitted and fixed to a connector portion 6a as a charging port formed integrally with the seat pivot portion of the storage box 6, as shown in FIGS.

The connector portion 6a is formed in a box shape that opens upward, and the pivot pin 3a of the seat 3 and the storage box 6
And the inner wall surface 6b. Then, two right and left contacts 53a penetrate and are fixed to the bottom of the connector portion 6a such that the connection direction is the up and down direction. Since the storage box 6 is formed of a synthetic resin, the contacts 53a can be directly supported by the connector 6a without short-circuiting the contacts 53a. A cutout 6c for passing the power outlet side cable 53c is formed at the opening edge of the connector 6a. The reference numeral 53d provided at the end of the power outlet side cable 53c indicates a contact 53a.
Is a plug to be inserted.

12 and FIG.
What is indicated by b is a connecting member for connecting the seat 3 and the pivot pin 3a. This connecting member 3b is a connecting portion 3 formed by partially extending the bottom plate 3c of the seat 3 downward.
d, and both left and right sides are rotatably connected to the pivot pin 3a. The pivot pins 3a are supported by a pair of left and right front protruding plates 6d provided on the seat pivot portion of the storage box 6 in a state where they are prevented from falling off. That is, the connector portion 6a is provided between the left and right front protruding plates 6d and the pivot pins 3a located in front of the front protruding plates 6d.
Are arranged. 6e is a notch formed in the seat pivot portion of the storage box 6, and this notch 6e has a structure through which the power outlet side cable 53c passes similarly to the notch 6c of the connector portion 6a. In FIG. 13, reference numeral 6 f denotes a sealing member interposed between the upper opening edge of the storage box 6 and the sheet 3. The sealing member 6 f is fixed to the lower portion of the sheet 3, and Are provided over the entire circumference.

In order to connect the power outlet side cable 53c to the contact 53a, the seat 3 must be connected to the contact 53a as shown in FIG.
The opening is performed as shown by the two-dot chain line A to expose the connector portion 6a. During charging, the seat 3 can be closed. At that time, the power outlet side cable 53c is led out from the connector portion 6a to the back side of the seat 3 through the notches 6c and 6e, and is guided downward between the seat 3 and the vehicle body cover 5 to be guided outside the vehicle body. The connection destination (power supply) of the cable 53c is a home power supply. The cable 53c is stored in the storage box 6 when charging is not performed, and is taken out of the storage box 6 during charging and connected as described above.

Also, in this electric scooter 1, since the operating voltage of the power unit 20 and the operating voltage of electric parts such as headlamps and flasher lamps are different, a DC-DC converter 5 is provided between these electric parts and the battery 25.
4 are interposed. The DC-DC converter 54
A main switch 55 and a fuse 56 are interposed between the battery and the battery 25, and a fuse 57 is interposed between the DC-DC converter 54 and the electric component.
58 is a headlamp, 59 is a dimmer switch, 60 is a tail / stop lamp, 61 is a stop switch, 6
2 is a horn, 63 is a horn switch, 64 is a flasher lamp, 65 is a flasher relay, 66 is an audio pilot, and 67 is a speedometer lamp.

The electric components such as the power relay 50, the DC-DC converter 54, and the fuses 51 and 57 are arranged in a concentrated manner in a portion between the right and left rear pipes 14 as shown in FIGS. . A mudguard plate 68 is attached to the rear wheels 22 of the left and right rear pipes 14, and the electrical components are fixed on the mudguard plate 68. The mudguard plate 68 is formed so as to be bridged between the left and right rear pipes 14. The front portion is screwed to the connecting member 15 of the vehicle body frame 9, and the rear portion is screwed to the cross member 16. In order to perform maintenance on the electrical components, the storage box 6 is removed from the vehicle body to expose the electrical components, and a hand is inserted through an opening in which the storage box 6 is arranged.

The power unit 20 is attached to the mudguard plate 68.
Cable 69 for connecting the controller 34 to the
An opening 70 for passing through is formed at a substantially central portion in the longitudinal direction. The openings 70 are formed at two places on the left and right as shown in FIG.

The electric scooter 1 configured as described above
Then, when the main switch 55 is operated and the start indicator 52 is turned on to rotate the throttle grip 2a, a current corresponding to the amount of rotation of the throttle grip 2a is supplied to the electric motor 20b of the power unit 20. When the output shaft of the electric motor 20b rotates, the rotational force is transmitted to the rear wheels 22 via the V-belt type automatic transmission 20c, and the electric vehicle 20 runs.

To attach and detach the battery 25, the footrest plate 29 and the plate-like bracket 32 are removed. That is, when the battery is mounted, the footrest plate 29 and the plate-shaped bracket 32 are removed to expose the upper opening of the battery box 26, and the battery 25 is first inserted from above into the front portion of the battery housing 26a.
Then, the battery 25 inserted in the front part of the battery box 26 is slid inside the battery box 26 and moved rearward, and is arranged in the rear part of the battery storage part 26a. Thereafter, another battery 25 is provided on the front side.
Insert When the battery 25 is taken out, the operation is performed in the reverse of the above-described operation.

Further, the charging operation of the battery 25 is performed by opening the sheet 3, exposing the connector portion 6a of the storage box 6, and connecting the plug 53d of the power outlet side cable 53c to the contact 53a located there. It is. Then, by closing the seat 3 during charging and locking it with the lock device 8, it becomes impossible for a third party to operate the charging port. Therefore, rainwater or dust does not enter the storage box 6 during charging, and the luggage can be kept stored.

Therefore, the electric scooter 1 according to the present invention
Then, when the seat 3 is opened, the charging port is exposed, and when the seat 3 is closed, the charging port (connector portion 6a) becomes invisible from the outside of the vehicle body.

Further, since the charging port is provided outside the storage box 6 and the power outlet side cable 53c does not cross the sealing member 6e between the upper opening edge of the storage box 6 and the sheet 3, the charging port is provided during charging. The sheet 3 can be completely closed.

Further, since the charging port is located between the pivot pin 3a and the inner wall surface 6b of the storage box 6, the charging port is provided outside the storage box. Therefore, the capacity of the storage box 6 does not decrease.

[0052]

As described above, the electric scooter according to the present invention has a structure in which the seat is pivotally supported by the storage box and the upper opening of the storage box is opened and closed by the seat. Since the charging port is provided between the wall and the wall, the charging port is exposed when the seat is opened, and becomes invisible from outside the vehicle body when the seat is closed. For this reason, since the sheet functions as a substantial lid for the charging port,
In preventing mischief of the charging port, there is no increase in the number of components and no complicated structure.

Further, since the charging port is provided outside the storage box and the connection cable on the power supply side does not cross the seal between the upper opening edge of the storage box and the sheet,
The capacity of the storage box is not reduced by the charging port, and the seat can be completely closed during charging.

Therefore, it is possible to prevent rainwater and dust from entering the storage box during charging, and to perform charging with the luggage stored in the storage box.

[Brief description of the drawings]

FIG. 1 is a side view of an electric scooter according to the present invention.

FIG. 2 is a plan view showing a vehicle body frame of the electric scooter according to the present invention.

FIG. 3 is a perspective view of a body frame and a battery box of the electric scooter according to the present invention.

FIG. 4 is a sectional view taken along line IV-IV of the battery box support in FIG.
It is a line sectional view.

FIG. 5 is an enlarged side view showing a potentiometer mounting portion.

FIG. 6 is a plan view of a potentiometer mounting portion.

FIG. 7 is a front view of a potentiometer mounting portion.

FIG. 8 is an enlarged side sectional view showing a head pipe portion of the electric scooter according to the present invention.

FIG. 9 is an enlarged side sectional view showing a mudguard plate portion.

FIG. 10 is a plan view of a mudguard plate portion.

FIG. 11 is a block diagram showing a configuration of an electric system of the electric scooter according to the present invention.

FIG. 12 is an enlarged plan view showing a seat pivot portion of the storage box.

FIG. 13 is a sectional view taken along line AA in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric scooter 3 Seat 3a Pivot pin 6 Storage box 6a Connector part 6b Inner wall surface 53 Charger 53a Contact 53b Lead wire

Claims (1)

(57) [Claims] 1. A storage box is provided below a seat,
The storage box has a structure in which the sheet is pivotally supported and the upper opening of the storage box is opened and closed by the sheet. A contact connected to a charging power source is provided between the pivotal support portion of the sheet and the inner wall surface of the storage box. An electric scooter, wherein the electric scooter is provided, and the contact is connected to a charger mounted on a vehicle body.