JP3050422B2 - Structure of vehicle components for electric motorcycle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arrangement structure of an electric motor, a battery, and a controller, which are vehicle components of an electric motorcycle.

[0002]

2. Description of the Related Art Conventionally, electric motorcycles are disclosed in
In particular FIG. 5 of JP-2590, there is what is shown in Figure 6 A.

According to the above publication, a body pipe forms a front end of a head pipe, a front frame extending rearward and downward from the head pipe, and a rear end extending rearward from a rear end of the front frame. a horizontal portion frame which extends substantially horizontally Te, and a rear frame extending toward the rear upward from the bottom end after the horizontal section frame, i.e., the body frame is an under bone type.

[0004] A power unit is disposed below and below the rear frame , and each power unit has an upward direction.
Each front end is free of the above rear flare so that it can swing back and forth.
A pair of left and right swing arms that are pivotally supported by the
The rear wheel is sandwiched between the rear ends of the swing arm, and this rear wheel
The swing arm is supported at the rear end in a double-supported manner. Ma
Further, the power transmission device is an electric motor constituting a front part thereof.
And an endless body winding type that connects the rear wheel to this motor
Power transmission means.

[0005] One swing arm of the left and right swing arms is
A shock absorber is provided extending from the rear side of the
The lower end of the shock absorber is connected to the power transmission device.
Meanwhile, the upper end of the shock absorber is connected to the rear frame.
ing. Also, the above-mentioned electric motorcycle can be made independent on the road surface.
And a controller for controlling the electric motor.

[0006] Then, the control by the electric motor depending on the controller, the rear wheels are driven, and is capable of traveling of the electric motorcycle.

[0007]

By the way, the above conventional art
In technology, the rear wheel is a pair of left and right swinging
Supported by an arm and at the side of the rear wheel
The shock absorber is located further to the side of the power transmission means disposed in
Are arranged.

For this reason, in the above conventional technique, the other swing
The moving arm, rear wheel, power transmission, and shock absorber
First, they are arranged side by side in the vehicle width direction.
The dimensions in the width direction of the vehicle may be extremely large,
This means that the appearance and ride comfort of an electric motorcycle will be impaired.
Produce it.

[0009] In the electric motorcycle, since the rider to obtain a sense of unity with the vehicle, their respective weight heavy rear frame, power unit, buffer, and a controller <br/> row La mutually is brought closer, it is considered Rukoto to concentrate mass.

However, in the above-described conventional technology, the
Since the specific arrangement of the rollers has not been clarified,
There is room for improvement in terms of mass concentration.

[0011]

SUMMARY OF THE INVENTION The present invention, as has been made by focusing on the above situation, electric dynamic motorcycle riding comfort of the vehicle appearance and to this vehicle is kept good, also the
Mass concentration in the vehicle and an object thereof is to so that is more reliably achieved.

[0012]

The features of the present invention for achieving the above object are as follows.

[0013] a head pipe 3 to the vehicle body frame 2 constituting the front end, the front frame 4 extending toward the rear downward from the head pipe 3, the rear from the lower <br/> end after the front frame 4 Horizontal frame 5 extending substantially horizontally toward
When, and a rear frame 6 extending toward the upper rear from the rear end of the horizontal portion frame 5, the power unit 12 is disposed behind and below the upper Symbol rear frame 6, the power unit 1
2 so that the rear side moves upward and can swing back and forth.
The front part of the power unit 12 is connected to the rear part by a pivot 19.
The power unit 12 is supported by the frame 6
The rear wheel 21 is supported at the rear of the power unit 12
Is a motor 13 which constitutes a front part of the power unit 12.
To transmit the power of the electric motor 13 to the rear wheel 21.
And a rear portion of the power transmission device 14.
A shock absorber 20 extending from the side toward the front upper side is provided.
One connecting the lower end of the impulse 20 to the power transmission device 14
The upper end of the shock absorber 20 is connected to the rear frame 6
Then, the electric motorcycle 1 can be made independent on the road surface 22.
The main stand 29 is provided, the first controller (controller) 37 Oite the electric two <br/>-wheel vehicle in which a for controlling the electric motor 13,

1) The power transmission device 14 forms an outer shell.
Power to link the rear wheel 21 to the motor 13
A transmission case 15 having a transmission means therein is provided.
From the front of the case 15 to one side in the vehicle width direction.
With the motive 13 protruding, and behind the transmission case 15
A rear wheel 21 is disposed on one side of the above-mentioned portion, and the rear wheel 21 is
The transmission case 15 is supported in a cantilever manner on the rear part,

2) Above the transmission case 15 above the buffer
Arrange the container 20,

3) On the lower surface of the front part of the transmission case 15,
Support the main stand 29,

4) When viewed from the side of the vehicle body, the rear frame 6,
Space surrounded by power unit 12 and shock absorber 20
And in front of the upper part of the shock absorber 20
The point is that a troller (controller) 37 is provided.

[0018]

[Operation] The operation of the above configuration is as follows.

1) The power transmission device 14 forms its outer shell.
Power transmission means for interlocking the rear wheel 21 to the electric motor 13
And a transmission case 15 having
Of the electric motor 13 from the front of the
And one side of the rear part of the transmission case 15
And the rear wheel 21 is mounted on the transmission case.
15 is supported in a cantilever manner on the rear part.

Here, as described above, the transmission case 15
It has a power transmission means inside and
As the shape becomes larger, the shape
The transmission case 15
High rigidity can be ensured.

Therefore, as described above, the transmission case 15
Even if the rear wheel 21 is supported in a cantilever manner, its supporting strength is sufficient.
In minutes.

As described above, the rear wheel 21 has a body width.
Cantilevered by a single transmission case 15 in the direction
The rear wheel 21 is supported by a pair of left and right swing arms.
The transmission case 15 and the rear wheel are different from those of the prior art.
21 in the width direction of the combined body of the combined bodies 15 and 21
Can be kept small.

2) Absorber 2 above transmission case 15
0 is arranged.

For this reason, the transmission having the power transmission means therein
The moving case 15 and the shock absorber 20 are almost the same in the vehicle width direction.
Power transmission means and shock absorber
And compared to the conventional technology, which was juxtaposed in the vehicle width direction,
The size of these combined bodies 15 and 20 in the width direction of the vehicle body is small.
Can be suppressed.

3) The front case lower surface of the transmission case 15
Stand 29 is supported.

For this reason, the main stand 29 is
Compared to supporting the horizontal frame 5
Because the vehicle is approached by the power transmission device 14, the electric motorcycle
It can be made to the concentration of mass definitive to 1 to more reliably
You.

As described above, the transmission case 15
This transmission cable can secure high rigidity.
The main stand 29 is firmly supported by the base 15.
Can be made.

4) Rear frame 6, power when viewed from the side of the vehicle body
The space surrounded by the unit 12 and the shock absorber 20 (hereinafter referred to as
Below, this is referred to as “space”) and the shock absorber 20
The first controller (controller) 37 in front of the upper part of
The following operation is produced.

That is, the impact that the rear wheel 21 receives from the road surface 22
When the shock absorber 20 absorbs
Make sure that the rear side of the force unit 12 swings upward and
To allow, the lower end of the shock absorber 20 is set to the upper end
Shrink to face.

Here, the shock absorber 20 is retracted after its contraction.
This shrinkage from maintaining a predetermined dimension in the longitudinal direction of
In front of the shock absorber 20 that has been
From the top surface of the power transmission device 14
Surplus while reaching the part of the rear frame 6 located above
Space will be created.

That is, before the shock absorber 20 contracts.
"Small space" surrounded by the three members 6, 12, 20
Therefore, there is an extra space in front of the upper part of the shock absorber 20.
This surplus space is the first space as described above.
In the space where the controller (controller) 37 is located,
Hit.

Therefore, as described above, the first controller
(Controller) 37, the extra space is
Because of this use, the electric motorcycle 1
External dimensions can be kept small.

As described above, the three members 6, 1
Use of surplus space in “space” surrounded by 2,20
And a first controller (controller) 37 is provided.
Therefore, the above three members 6, 12, 20 and the first
Compact with the controller 37
Will be arranged.

[0034]

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 3, reference numeral 1 denotes a scooter-type electric motorcycle, and an arrow Fr in the figure indicates the front thereof.

The vehicle body frame 2 of the electric motorcycle 1 has an underbone shape.
A head pipe 3 constituting the front end, the front frame 4 extending toward the rear downward from the head pipe 3, a horizontal section frame 5 extending substantially horizontally towards the bottom end after the front frame 4 at the rear And a rear frame 6 which extends from the rear end of the horizontal frame 5 upward and rearward and then extends substantially horizontally rearward, and these are integrally formed by a circular pipe. Further, a bracket 7 protruding rearward from a rear end of the rear frame 6 is provided.

A front fork 8 is supported on the head pipe 3 so as to be steerable. A front wheel 9 is supported on a lower end of the front fork 8, and a handle 10 is mounted on an upper end.

A power unit 12 is provided below and below the rear frame 6. This power unit 12
So that the rear side of the
The front is pivotally connected to the rear frame 6 by a pivot 19.
A rear wheel 21 is supported at the rear of the power unit 12.
ing. The power unit 12 includes the power unit 1
A travel drive motor 13 of the AC extending in the width direction of the vehicle body constitutes a second front, the power of the electric motor 13 to the rear wheel 21
And a power transmission device 14 for transmission .

The power transmission device 14 has an outer shell.
Transmission case 15 and the transmission case 15
Power transmission for interlocking the rear wheel 21 to the electric motor 13
And belt transmission means (not shown) as means.
You.

From the front of the transmission case 15 in the width direction of the vehicle body
The motor 13 protrudes toward the right side, which is one side of the motor.
Is, more specifically, the casing 16 of the electric motor 13 is mounted on the front right side of the transmission case 15 Tei
You. Also, at one side of the rear part of the transmission case 15
That the rear wheel 21 is disposed on the right side, the rear wheel 21 is the heat transfer
The rear part of the moving case 15 is supported in a cantilever manner . The electric motor 13 and the power transmission device 14 are arranged on the left and right,
It is a so-called horizontal type.

[0041] The pivot shaft 19 has a front portion of the power unit 12 situated in the middle portion of the vehicle body width direction of the electric motor 13 in the forward vicinity of the electric motor 13 is pivotally supported by the body frame 2 . More specifically, the horizontal frame 5
A bracket 18 protrudes from the rear end, and a support piece 17 formed on the transmission case 15 and the casing 16 is pivotally supported on the bracket 18 by the pivot shaft 19.
Toward the upper side rear portion of the pivot shaft 19 about the transmission case 15 is
Forward, and is freely backward swinging.

The transmission case 15 of the power transmission device 14
A shock absorber 20 extending from the rear side toward the front upper side is provided.
The lower end of the shock absorber 20 is connected to the transmission of the power transmission device 14.
The upper end of the shock absorber 20 while being connected to the moving case 15
Is connected to the rear frame 6 via the bracket 7,
In this case, the shock absorber 20 is provided above the transmission case 15.
Are arranged .

[0043] Then, the power of the electric motor 13 is provided on the transmission case 15 in the belt transmission means (not shown)
To the rear wheel 21 so that the electric motorcycle 1 can travel. At this time, the shock that the rear wheel 21 receives from the road surface 22 is absorbed by the shock absorber 20. this
In this case, the rear side of the power unit 12 together with the rear wheel 21 is upward.
The shock absorber 2 described above is allowed to swing forward.
0 contracts so that its lower end faces the upper end.

In the above case, the power unit 12 is
The power unit 12 has a rear wheel 21 supported thereon. Therefore, when the power unit 12 swings, the electric motor 13 and the rear wheel 21 swing integrally. Therefore, there is an advantage that the configuration of the power transmission device 14 connecting these two components is simplified.

A seat 24 is disposed above the rear frame 6, and the front end of the seat 24 is located at substantially the same position as the front lower end of the rear frame 6 in the front-rear direction. A footrest floor 25 on which the rider seated on the seat 24 places his or her feet is provided on the horizontal frame 5. A leg shield 26 that covers the rider's feet placed on the footrest floor 25 from the front is provided. The leg shield 26 is connected to the head pipe 3 and the front fork 8.
Is covered. In FIG. 1, an under cover 27 that covers the lower surface of the horizontal frame 5 is provided. Also, left and right side covers 28, 28 that cover the side of the rear frame 6 and the bracket 7 are provided.

[0046] In FIG. 1, the front portion <br/> lower surface of the transmission case 15, the main stand 29 is provided. The main stand 29 is urged by a spring 30 so as to be able to select one of an upper rotation posture shown by a solid line in the drawing and a lower rotation posture rotated below the main rotation posture.
When the vehicle is in the upward rotation posture, the electric motorcycle 1 can travel, and when the vehicle is in the downward rotation posture, the electric motorcycle 1 can be held on the road surface 22 in an independent state. In the above case, one end of the spring 30 is connected to the support piece 17, and the other end is connected to an intermediate portion of the main stand 29 in the longitudinal direction.

The electric motor 13 is located near the rear of the pivot 19. A pair of left and right sheet metal support cases 31, 31 are provided near the upper portion of the electric motor 13. These two support cases 31, 31 are connected to each other by a gate-shaped connecting plate 31a straddling the upper part of the rear frame 6, and are supported by the rear frame 6 as described above. In this case, the sheet 24 is detachably supported on the connection plate 31a via a buffer material 32.

A first battery 33 is housed in each of the support cases 31 so as to be able to be inserted and removed, and a heat insulating and cushioning material 34 made of styrene foam is interposed between the inner surface of the support case 31 and the first battery 33. I have. Further, a cover plate 35 that covers the upper surface of each of the first batteries 33 is provided.

In the above case, when the sheet 24 is removed, the upper part of each of the support cases 31 is opened. Then, through this open space, the first
The battery 33 can be freely inserted and removed.

The space 3 between the left and right support cases 31, 31
In 6, a first controller 37 is provided near the upper part of the electric motor 13, and the first controller 37 is attached to the right support case 31. The first controller 37 adjusts the current supplied from the first battery 33 to the electric motor 13 to control the rotation speed and the like.
Further, a second controller 38 is provided near the upper front of the electric motor 13, and the second controller 38 is attached to a front portion of the rear frame 6.

In the above case, the space occupied by the electric motor 13 when the power unit 12 swings about the pivot 19 is smaller than that of the other parts of the power unit 12. Therefore, the first battery 33 and the controller 37,
38 is brought sufficiently close to each other, whereby the concentration of the mass and the simplification of electric wiring between the electric components such as the electric motor 13 are achieved.

On the other hand, a box 39 is formed on the rear surface of the leg shield 26, and the first
A second battery 40 is provided instead of or together with the battery 33. An opening (not shown) is formed on the rear surface of the box body 39, and a lid (not shown) for opening and closing the opening is provided. The second battery 40 can be freely inserted into and removed from the box 39 through the opening.

The bracket 7 has a third controller 4
1 is supported.

In FIG. 1, when viewed from the side of the vehicle body (FIG. 1), the pivot 19 is vertically displaced from a virtual line 48 passing through the centers of the electric motor 13 and the rear wheel 21.

[0055] Further, when the body is viewed from the side (FIG. 1), the rear-off
Frame 6, power unit 12, and shock absorber 20
In the "space" surrounded by the members 6, 12, 20 of
The first controller 37 is provided in front of the upper part of the shock absorber 20.
Are arranged. Further, the second controller 38 is a rectangular, with the longitudinal direction of the second controller 38 is allowed to substantially parallel to the longitudinal direction of the rear frame 6, are arranged along this rear frame 6 .

FIG. 4 shows another embodiment.

According to this, the first battery 33 has a substantially U-shape in plan view, and includes a front battery 43 and a left battery 44 and a right battery 44 extending rearward from right and left ends of the front battery 43. 45. In this case, the rear end of the left battery 44 is formed shorter than the rear end of the right battery 45 by the amount of the buffer 20 provided. Thus, the weight balance between the left and right sides of the vehicle body is achieved.

In the above case, each of the batteries 43, 44, 45
Is composed of a plurality of batteries, each of which has the same shape and the same capacity. The front portion of the rear wheel 21 is fitted in a space surrounded by the batteries 43, 44, and 45. And this rear wheel 2
Each of the batteries is provided by making full use of the space surrounded by the first cover 1 and the side cover 28, and the capacity is sufficiently improved.

The first battery 33 is provided inside the first battery 33.
A controller 37 is provided. In this case, a first controller 37 'may be provided in front of the first battery 33.

The other construction is the same as that of the above embodiment,
The same reference numerals are given to the drawings, and description thereof will be omitted.

[0061]

Effects of the Invention According to the present invention, a head pipe constituting a vehicle body frame a front end portion thereof, a front frame extending toward the rear downward from the head pipe, the rear from the bottom end after the front frame a horizontal portion frame extending substantially horizontally towards, and a rear frame extending toward the rear upper side from the rear end of the horizontal portion frame, the power unit is disposed behind and below the upper Symbol rear frame, the power unit rear
This power moves so that the part side moves upward and can swing back and forth.
Pivot the front of the unit to the rear frame with a pivot
And the rear wheel is supported at the rear of the power unit.
And the power unit forms a front part of the power unit.
And the power of the motor to be transmitted to the rear wheels.
A power transmission device, and a rear side of the power transmission device.
A shock absorber that extends forward and upward from the
Connect the end to the power transmission while
Connect the end to the rear frame and connect the electric motorcycle to the road
An electric motorcycle provided with a main stand capable of being self-standing and a controller for controlling the electric motor.
And

1) The power transmission device forms an outer shell.
Power transmission means to link the rear wheel to the motor
Having a transmission case having a vehicle from the front of the transmission case.
When the motor is protruded toward one side in the body width direction,
A rear wheel is arranged on one side of the rear of the transmission case.
The rear wheel of the lever is supported at the rear of the transmission case in a cantilever manner.
I have.

Here, as described above, the transmission case is
It has a transmission means inside, and the outer shape accordingly
Case that is large and easy to secure rigidity
Due to its shape, the transmission case has high rigidity.
Can be secured.

Therefore, as described above, the rear wheel is attached to the transmission case.
Even if the cantilever is supported, the bearing strength is sufficiently secured
Is done.

Then, as described above, the rear wheel is in the vehicle width direction.
With a single transmission case and cantilevered
Conventionally, the rear wheel is supported by a pair of left and right swing arms
Combined with the above transmission case and rear wheel compared to the technology of
The size of the body in the width direction of the vehicle body can be kept small. Therefore,
The appearance and riding comfort of the electric motorcycle are kept good.

2) Place the shock absorber above the transmission case.
It is arranged.

For this reason, the transmission having the power transmission means therein
The moving case and the shock absorber are located almost at the same
The power transmission means and the shock absorber
Compared to the conventional technology that was arranged side by side in the width direction,
The size of the mating body in the vehicle width direction can be kept small. Yo
To improve the appearance and ride quality of electric motorcycles.
You.

3) On the lower surface of the front part of the transmission case,
The stand is supported.

For this reason, the main stand
The power transmission described above is compared to supporting on the horizontal frame.
Approach to the vehicle,
Can be more surely concentrated.

As described above, the transmission case is large.
This transmission case can secure high rigidity.
The main stand can be strongly supported
Wear. Therefore, according to this main stand,
Motorcycles should be able to stand on the road surface in a stable and stable manner
it can.

4) The rear frame, the moving
"Empty" surrounded by three members: a power unit and a shock absorber.
In between, and in front of the top of the shock absorber,
The following effects occur.

That is, the impact that the rear wheels receive from the road surface is reduced
When the impactor absorbs, the rear of the power unit with the rear wheel
Side to allow upward swinging.
The impactor contracts so that its lower end is directed toward its upper end.

Here, the shock absorber has its length after contraction.
This shrinkage is caused by holding a predetermined dimension in the hand direction.
In front of the shock absorber, go upwards as viewed from the side of the vehicle body.
From the top of the rocking power transmission,
Extra space between the rear frame parts
Becomes

That is, before the shock absorber shrinks, the three
In the "space" surrounded by two members, above the shock absorber
There is an extra space in front of the
The extra space is the space where the controller is arranged as described above.
Is equivalent to

Therefore, as described above, the controller
This extra space was used for
The external dimensions of the electric motorcycle are kept small.
You. Therefore, the appearance and riding comfort of the electric motorcycle are even better.
It will be good.

Further , as described above, the frame is surrounded by three members.
Control by using surplus space in
The above three members and the control
The rollers are compactly arranged with each other. Yo
To make the mass concentration in the electric motorcycle more reliable.
Can be

[Brief description of the drawings]

FIG. 1 is an overall side view.

FIG. 2 is an overall plan view.

FIG. 3 is a sectional view taken along line 3-3 of FIG. 2;

FIG. 4 is a perspective view of a main part showing another embodiment.

[Explanation of symbols]

1 electric motorcycle 2 vehicle body frame 3 head pipe 4 the front frame 5 horizontal section frame 6 rear frame 12 power unit 13 motor 14 power transmission device 15 the transmission case 19 support shaft 20 damper 21 rear wheel 22 road 24 sheet 29 main stand 33 first battery (battery) 37 first controller (controller) 38 second controller (controller) 48 virtual line

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-182590 (JP, A) JP-A-3-273988 (JP, A) JP-A-4-224490 (JP, A) 60694 (JP, U) Japanese Utility Model Hei 2-117282 (JP, U) Japanese Utility Model Showa 50-54711 (JP, U) Japanese Utility Model Utility Model Showa 51-80848 (JP, U) (58) Field surveyed (Int. ⁷ , DB name) B62K 11/00 B62J 11/00

Claims (1)

(57) [Claims] And 1. A head body frame constituting the front end pipe, a front frame extending toward the rear downward from the head pipe and extends substantially horizontally rearward from the lower end after the front frame a horizontal portion frame, and a rear frame extending toward the rear upper side from the rear end of the horizontal portion frame, the power unit is disposed behind and below the upper Symbol rear frame, the rear side of the power unit is upward
The front of this power unit is pivoted so that it can swing back and forth.
The support shaft is pivoted to the rear frame, and
Support the rear wheel at the rear of the power unit, and
The motor that constitutes the front of this power unit
And a power transmission device for transmitting the power of the electric motor to the rear wheels.
Extending from the rear side of the power transmission device
And a lower end of the shock absorber connected to the power transmission device.
While connecting the upper end of the shock absorber to the rear frame.
To make the above-mentioned electric motorcycle independent on the road surface.
An electric motorcycle having a main stand provided with a controller for controlling the electric motor, wherein: 1) the power transmission device forms an outer shell of the electric motor;
Transmission gear having power transmission means for interlocking the rear wheel
The transmission case has a
The electric motor protrudes toward the side and the transmission
Arrange the rear wheel on one side of the rear of the case and attach this rear wheel
Is supported in a cantilever to the rear portion of the transmission case, 2) disposed above shock absorber above the transmission case, 3) the main stand in the front lower surface of the transmission case
Was supported, 4) when the body is viewed from the side, the rear frame, power unit,
And in the space surrounded by the shock absorber and above the shock absorber
A vehicle component arrangement structure of an electric motorcycle in which the controller is disposed in front of the unit .