JPH0613308B2 - Arrangement structure of sealed battery in motorcycle - Google Patents

Description

TECHNICAL FIELD The present invention relates to a motorcycle, and more particularly to an arrangement structure of a sealed battery.

Background Art In the current batteries installed in motorcycles, the water content in the electrolyte is electrolyzed during overcharging, resulting in evaporation of oxygen gas in the anode plate and hydrogen gas in the cathode plate, which reduces the electrolyte solution. Therefore, it is necessary to replenish distilled water and the like, and since the electrode part battery is formed by the elution of antimony (Sb) in the electrode plate and internal discharge occurs, it is necessary to supplement charge when the battery is left for a long period of time. The mounting position was limited to a position where maintenance could be easily performed. In addition, since it is necessary to provide exhaust holes for releasing oxygen gas and hydrogen gas generated from the anode plate and cathode plate to the outside, a completely sealed structure cannot be achieved. Since the liquid would leak, there was a restriction on the mounting state of the battery on the vehicle body. The restriction on the mounting position and the mounting state of the battery as described above hinders downsizing and slimming of the vehicle body.

On the other hand, recently, a maintenance-free sealed battery as shown in FIG. 1 has been developed. In FIG. 1, 1
Is a battery case, 2 is a battery case cover that covers the battery case 1, 3 is an anode plate made of lead and lead calcium alloy provided in two cells per cell, and 4 is lead and lead provided in three cells per cell A cathode plate made of a calcium alloy, 5 is a positive electrode, and a cotton-like separator made of glass fiber having a wire diameter of 1 μm or less arranged between the cathode plates 3 and 4, 6 and 7 are two anode plates 3 and 3 Polar poles, 8 and 9 respectively extending over the cathode plate 4 are positive and negative terminals.
Further, 10 is an exhaust hole provided for each cell, and the gas exhausted from the exhaust hole 10 pushes up a rubber valve 11 provided in the central portion of the battery case lid 2, passes through a filter 12, and Through the gap between the lid 13 and the upper lid 14, the upper lid 14
It is discharged to the outside from an exhaust hole (not shown) formed in the side portion of the.

In the battery 15 having such a configuration, the rubber valve 11 is provided in the middle of the exhaust passage so as to have a completely sealed structure in which water in the electrolytic solution is prevented from being evaporated. Replenishment is not required by using a so-called oxygen cycle in which the gas is not emitted and the cathode plate is exposed to the oxygen gas generated from the anode plate so that the oxygen gas is absorbed by the cathode plate. Further, by using a calcium alloy electrode plate, formation of an electrode battery due to elution of antimony in the electrode plate is prevented, and by suppressing the amount of self-discharge, supplementary charging when left for a long time is unnecessary. Further, a fine glass mat prevents the electrolytic solution from flowing out.

As described above, the sealed battery 15 is so-called maintenance-free that does not require replenishing water and recharging, and has a characteristic that the mounting position and mounting state are not restricted because the electrolyte does not leak even when it is slanted or placed sideways.

Therefore, the present invention focuses on the characteristics of the sealed battery as described above and downsizes the vehicle body by effectively utilizing the so-called dead space of the vehicle body using this sealed battery,
In addition to enabling slimness, the vehicle body rigidity is secured, the sealed battery is protected, and the degree of freedom in battery placement is also increased. Moreover, the battery is attached regardless of the shape of the vehicle body structural member, and the vehicle body has a low center of gravity. It is an object of the present invention to provide an arrangement structure of a sealed battery in a motorcycle which also achieves the above.

Configuration of the Invention The arrangement structure of a sealed battery for a motorcycle according to the present invention includes a box-shaped vehicle body forming member having an opening at an upper portion and the opening being openable and closable by a seat, and the box-shaped vehicle body forming member. In the arrangement structure of a sealed battery in a motorcycle having a power unit suspended below, the box-shaped vehicle body forming member is provided with an opening for battery attachment in a lower portion facing the power unit, The feature is that the sealed battery is inserted and fixed from the opening.

Embodiments Embodiments of the present invention will be described below with reference to FIGS. 2 to 5.

FIG. 2 is a side view of the motorcycle according to the present invention. In the figure, a head pipe 17 into which the front fork 16 is inserted is joined to a box-shaped hollow frame 18 by a steel plate press, that is, a front end of the box member, as a vehicle body forming member,
The frame 18 extends obliquely downward and rearward, and the rear end portion rises. A sheet receiver 19 is welded to the rear end opening of the frame 18, and a sheet 20 is mounted on the sheet receiver 19. That is, the opening is opened and closed by the seat 20. A power unit 21 is disposed below the rear end of the frame 18, and the power unit 21 has its front part pivotally mounted on the frame 18 via a link 22 and its rear part pivotally mounted on the frame 18 via a shock absorber 23. ing. Then, the sealed battery 15 is housed and arranged above the power unit 21 which becomes a dead space, in this case, inside the rear end portion (position B) of the box-shaped frame 18 along the bottom surface of the frame. Regarding the method of storing the battery 15, as shown in FIGS. 3 to 5, the frame is stored in a storage frame 31 integrally formed on the plate 30 and fixed by a fixing tool 32, and after that, after the frame 18. The plate 30 is housed in the end portion from below, and the plate 30 is fastened and fixed to the lower end portion of the frame 18 by the bolt 33 and the nut 34. The plate 30 forms part of the bottom surface of the frame 18.

It should be noted that the present invention is not limited to application to a motorcycle, but can be applied to a motorcycle having two rear wheels and having a vehicle body structure substantially similar to that of the motorcycle.

As described above in detail, in the arrangement structure of the sealed battery according to the present invention, the battery mounting opening is formed in the lower portion of the box-shaped vehicle body forming member facing the power unit having the upper opening that can be opened and closed by the seat. A portion is provided, and the sealed battery is inserted and fixed through this opening.

In such a configuration, since the box member has the bottom plate, the rigidity of the box member as the vehicle body structure is sufficiently ensured, and the following effects are exhibited.

That is, in view of the fact that the sealed battery basically requires no maintenance, the bottom of the box member that cannot be reached is utilized as the battery placement space, and the dead space above the power unit is effectively used to reduce the size of the vehicle body. In addition to making the battery slimmer and slimmer, it also protects the battery from rain, etc., to achieve a longer life.

Further, since the sealed battery has no fear of liquid leakage and does not require maintenance as described above, the bottom surface of the box member can be inclined and the depth thereof can be freely set. The degree of freedom is increasing.

Further, since the sealed battery is attached from below the vehicle body forming member, the battery can be attached regardless of the shape of the upper vehicle body forming member, and the center of gravity of the vehicle can be lowered.

[Brief description of drawings]

FIG. 1 is a perspective view including a partial cross section of the sealed battery, and FIG.
FIG. 1 is a side view of a motorcycle according to the present invention, and FIGS. 3, 4, and 5 are a perspective view, a front sectional view and a cutaway side view showing an embodiment of the present invention. Explanation of symbols of main parts 15 ... Sealed battery 17 ... Head pipe 18 ... Frame 20 ... Seat 21 ... Power unit 30 ... Plate 32 ... Fixing device

Claims (1)

[Claims] 1. A hermetically sealed motorcycle, comprising: a box-shaped vehicle body forming member having an opening at an upper portion thereof, the opening being openable and closable by a seat; and a power unit suspended below the box-shaped vehicle body forming member. A battery arrangement structure, wherein the box-shaped vehicle body forming member is provided with an opening for battery attachment in a lower portion facing the power unit,
An arrangement structure of a sealed battery in a motorcycle, wherein a sealed battery is inserted and fixed from the opening.