JP3570654B2 - Motorcycle electrical component mounting structure - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a structure for advantageously mounting electric components such as an ECU and a battery, which are electronic control units for a motorcycle engine, and the like.
[0002]
[Prior art]
Conventional ECUs are often supported by a center cowl stay extending forward from a head pipe to support a fairing, a vehicle body frame, a seat rail, or the like. In particular, in the case of supporting the vehicle body frame, it is often attached to the outside of the main frame, and the seat rail is sometimes supported via a rear fender.
[0003]
As one example, Japanese Patent Application Laid-Open No. 63-82886 discloses that a pair of left and right main frames having a C-shaped cross section are arranged so that their openings face each other. A motorcycle equipped with a product is shown. In this example, an engine of a type that does not overlap with the main frame is employed in a side view, and the electrical components are arranged so as not to be seen at all.
[0004]
[Problems to be solved by the invention]
It is desirable to arrange expensive electric components such as ECUs with the vehicle body as much as possible, and relatively heavy electric components such as ECUs and batteries can concentrate mass and shorten the wire harness as much as possible. An arrangement is desired.
[0005]
Further, since the ECU and the like generate heat, it is necessary to efficiently cool the heat, and it is preferable that the connection work in the coupler portion can be easily performed. However, Japanese Patent Application Laid-Open No. 63-82886 discloses that the main frame and the engine are Since the engine does not overlap, there is little motivation to cool the heat-generating components.
[0006]
Also, the electrical components are hidden behind the main frame when viewed from the side.This is because the wire harness extends directly directly from the electrical component case itself, and the connection part is easily accessible on the vehicle body. It is because it is provided in the place. However, in this case, in the connection work, the trouble of searching for the connection part corresponding to the electrical component is increased, and it is against the shortening of the wire harness.
[0007]
If a wire harness that extends directly from the case of the electrical component itself is not used, a connection portion for connecting the wire harness to the case of the electrical component must be provided. Since the connection part on the electrical component side is hidden by the main frame, workability at the time of connection is deteriorated.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, an electric component mounting structure for a motorcycle according to claim 1 of the present invention has a main frame extending in a pair to the left and right from a head pipe rotatably supporting a front fork. engine including at motorcycle having a body frame, the cylinder of the engine between the main frame before Symbol lateral disposed so as to overlap with the main frame in a side view, the cylinder behind and plan view of the cylinder And providing a gap between the inner surface of the main frame and a passage of the traveling wind,
An ECU for controlling the engine is disposed in the gap so as to overlap the main frame in a side view.
[0009]
Further, the ECU, the coupler is disposed so as seen through the lower surface of the main frame as viewed from the side outward, it arranged to allow the working of ECU from the vehicle body side.
[0010]
According to a second aspect, in the first aspect, the cylinder includes a first cylinder facing upward in a side view and a second cylinder facing downward, and the gap and the ECU are disposed behind the second cylinder in a plan view. It is characterized in that it is made to be.
[0011]
According to a third aspect of the present invention , in the first aspect, a shock absorber mounting portion for mounting an upper end of a rear suspension shock absorber is provided between left and right rear portions of the vehicle body frame, and a battery is supported on a side surface of the shock absorber mounting portion. It is characterized by .
[0012]
A fourth aspect of the present invention is characterized in that , in the third aspect, both right and left sides of the shock absorber mounting portion are covered with a vehicle body cover, and a viewing window for a battery is provided on a side surface of the vehicle body cover.
[0013]
【The invention's effect】
According to claim 1, and disposed between the main frame of the right and left ECU, it overlaps the main frame as viewed from the side, and therefore is disposed so as couplers EUC peek outside from the lower surface of the main frame, a rigid member A certain main frame can be arranged to protect the ECU, which is an expensive electrical component, and the work on the coupler can be easily performed from the side of the vehicle body, thereby facilitating the connection work.
[0014]
In addition, a cylinder of the engine is disposed between the left and right main frames in a side view, and a gap is provided between the engine including the cylinder and the inner surface of the main frame behind the cylinder in a plan view to form a passage for traveling wind. and, since the disposed ECU in this gap, it is possible to place an expensive ECU to effectively protect possible locations, can form a gap constituting a ventilation passage into the cylinder rear between the left and right main frames because, during this time The ECU can be efficiently cooled by using the traveling wind flowing through the gap, and the temperature of the ECU can be prevented from rising excessively. In addition, since the ECU coupler is located near the engine, the wire harness can be shortened as much as possible.
[0015]
According to the second aspect, the cylinder of the engine further includes a first cylinder facing upward in a side view and a second cylinder facing downward, and the gap and the ECU are disposed behind the second cylinder in a plan view. As a result, it is possible to make the traveling wind easier to flow toward the ECU by using the second cylinder located in front of the ECU, thereby efficiently cooling the ECU.
[0016]
According to the third aspect, if a battery is provided on the side surface of the shock absorber mounting portion, a heavy battery can be supported at the center of the vehicle body, so that mass can be concentrated and a wire harness can be formed. As long as possible.
[0017]
According to the fourth aspect, if the battery cover is provided with a peephole for the battery, the battery can be inspected while the vehicle body cover is still attached to the vehicle body, so that the inspection and maintenance are facilitated. In addition, since the traveling wind flowing backward inside the vehicle body passes through the viewing window to the outside, the traveling wind can be collected around the shock absorber, and as a result, the cooling efficiency of the shock absorber, which is a heat generating component, is improved. .
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a side view of a vehicle body frame, showing a state in which electric components are mounted in a side view. FIG. 2 is a side view of the entire motorcycle without a vehicle body cover. FIG. 3 is a top view of a front part of the vehicle body frame. 4 is a rear view of the rear part of the vehicle body frame, and FIG. 5 is a side view showing a viewing window of the battery.
[0019]
First, the overall structure of a motorcycle to which the present invention is applied will be schematically described with reference to FIG. The upper end of a front fork 2 supporting the front wheel 1 is rotatably supported by a head pipe 3 and is steered by a handle.
[0020]
From the head pipe 3, a main frame 5 having a vertically long rectangular cross section extends diagonally downward and rearward as a pair while extending in a bifurcated manner, and extends vertically at the rear ends of the left and right main frames 5. 6 is connected.
[0021]
A front end of a cantilevered rear arm 8 is swingably supported on a pivot frame 6 by a pivot 7, and a rear wheel 9 is supported on a rear end thereof.
[0022]
A buffer mounting portion 11 is provided at an intermediate portion of a cross pipe 10 (see FIG. 4) provided by connecting the upper portions of the left and right pivot frames 6 to each other, and a top portion 12 of the buffer mounting portion 11 is provided. Supports the upper end of the shock absorber 13.
[0023]
The lower end of the shock absorber 13 is connected to a cushion link 14 provided between the pivot frame 6 and the cantilevered rear arm 8.
[0024]
The main frame 5 and the pivot frame 6 constitute a body frame. A V-type engine 17 is supported on the engine hanger 15 of the main frame 5 and the mount portions 16a and 16b of the pivot frame 6.
[0025]
The V-type engine 17 is provided with a right cylinder 18 and a left cylinder 19 expanding forward in a V-shape at the front, and the right cylinder 18 is provided diagonally upward and the left cylinder 19 is provided diagonally downward.
[0026]
A radiator 20 is provided in front of the V-type engine 17, an intake box 21 is provided above the V-type engine 17, and a fuel tank 22 is provided above the intake box 21.
[0027]
The intake box 21 takes in the traveling wind from an intake duct 24 that opens forward to a front portion of the head pipe of the fairing 23 and intakes the V-type engine 17.
[0028]
The fairing 23 covers the left and right sides of the V-type engine 17 from the front of the vehicle body, and the traveling wind that has been taken into the fairing 23 from the front of the vehicle body and cooled the radiator 20 is exhausted from the fairing 23 provided behind the radiator 20. It is discharged from the mouth 25 to the outside.
[0029]
A seat rail 26 extends obliquely upward and rearward on the top portion 12 of the shock absorber mounting portion 11, and a seat 28 is mounted on a seat cowl 27 supported by the seat rail 26.
[0030]
As is apparent from FIG. 3, a gap 30 is provided between the V-type engine 17 and the main frame 5, and an ECU 31, which is an electrical component for engine control, is accommodated in the gap 30. A bolt 32 is attached to a nut 32 provided on the side surface so as to protrude inward of the vehicle body.
[0031]
The gap 30 in which the ECU 31 is accommodated communicates with a space above the left cylinder 19 that projects obliquely downward and forward, and serves as a passage for the traveling wind W that is guided by the left cylinder 19 and easily flows in. ing.
[0032]
As is apparent from FIG. 1, the ECU 31 and the main frame 5 are overlapped in a side view, and a coupler 34 provided below the ECU 31 is provided at a lower end of the ECU 31 from the lower surface of the main frame 5 outward. I have.
[0033]
Further, a detonation counter box 35 is attached between the main frame 5 and the fairing 23 on the outer surface of the main pipe 5 in the vicinity of the head pipe 3. The detonation counter box 35 is disposed at a position away from the rider's legs in the riding position and at a position not hidden by the fairing 23 in a side view.
[0034]
As is apparent from FIG. 4, the shock absorber attachment portion 11 is located closer to the center of the vehicle than the left and right pivot frames 6, and a heavy battery 36 as an electrical component is supported on the side surface of the shock absorber attachment portion 11. I have.
[0035]
As shown in FIG. 5, a viewing window 37 is provided on the seat cowl 27 that covers the left and right sides of the shock absorber mounting portion 11 including the battery 36, and the battery 36 can be viewed from the outside through the viewing window 37. I have.
[0036]
Next, the operation of the present embodiment will be described. Since the ECU 31 and the battery 36, which are electrical components, are disposed inside the left and right main frames 5 and the pivot frame 6, these electrical components are protected by the body frames (5, 6) which are rigid members. The expensive components ECU 31 and battery 36 are effectively protected.
[0037]
Further, since the ECU 31 is located near the engine 17 and the battery 36 is also located near the center of the vehicle body, the wire harness can be reduced as much as possible. In addition, since the heavy battery 36 is disposed near the center of the vehicle body, the mass can be concentrated.
[0038]
Further, since the ECU 31 is disposed in the gap 30 behind the left cylinder 19 projecting forward and downward, the traveling wind can easily flow around the ECU 31 and the ECU 31 which needs to avoid a temperature rise can be efficiently operated. Can be cooled down.
[0039]
Further, since the coupler 34 provided at the lower part of the ECU 31 looks out from the lower surface of the main frame 5 to the outside, the connection work from the outside can be easily and quickly performed.
[0040]
In addition, the battery 36 can effectively use the space on the side of the shock absorber mounting portion 11 as an arrangement space, and can inspect the battery 36 from the viewing window 37 without removing the seat cowl 27, so that the inspection and maintenance are excellent. become.
[0041]
Moreover, the traveling wind W flowing rearward from the gap 30 side inside the vehicle body passes through the periphery of the shock absorber mounting portion 11 and flows outward from the viewing window 37, so that the traveling wind W can be easily removed, and the shock absorber is improved. Since the traveling wind W is easily collected around the mounting portion 11, the shock absorber 13 which easily generates heat can be effectively cooled.
[0042]
Furthermore, since the detonation counter box 35 is disposed at a position away from the rider's legs in the riding position and at a position that is not hidden by the fairing 23 in side view, the detonation counter box 35 can be inspected while the rider is riding. , Maintainability is improved.
[Brief description of the drawings]
FIG. 1 is a side view of a vehicle body frame. FIG. 2 is a side view of the entire motorcycle without a vehicle body cover. FIG. 3 is a top view of a vehicle body frame front part. FIG. FIG. 5 is a side view showing a viewing window of a battery.
5: main frame, 6: pivot frame, 11: shock absorber mounting portion, 13: shock absorber, 17: V-type engine, 31: ECU, 36: battery

Claims (4)

In a motorcycle including a body frame having a main frame extending in a pair to the left and right from a head pipe rotatably supporting a front fork ,
Disposed so as to overlap with the main frame cylinders of the engine in side view between the main frame before Symbol right, between the inner surface of said main frame and engine including the cylinder behind and plan view of the cylinder A gap is provided to form a traveling wind path,
An ECU for engine control is arranged in this gap so as to overlap the main frame in a side view,
Motorcycle characterized in that the coupler of the ECU is disposed so as to be operable from the side of the vehicle body by arranging the coupler of the ECU outwardly from the lower surface of the main frame in a side view. Electrical component mounting structure. 2. The cylinder according to claim 1, wherein the cylinder includes a first cylinder facing upward in a side view and a second cylinder facing downward, and the gap and the ECU are arranged behind the second cylinder in plan view. For mounting electrical components on motorcycles. 2. An automatic vehicle according to claim 1, wherein a shock absorber mounting portion for mounting an upper end portion of a rear suspension shock absorber is provided between left and right rear portions of the vehicle body frame, and a battery is supported on a side surface of the shock absorber mounting portion. Electrical component mounting structure for motorcycles. 4. The motorcycle according to claim 3, wherein the left and right sides of the shock absorber mounting portion are covered with a vehicle body cover, and a viewing window for a battery is provided on a side surface of the vehicle body cover.

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