JPH0348072B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a battery arrangement structure in a motorcycle.

Background technology In the current batteries installed in motorcycles, when overcharged, water in the electrolyte is electrolyzed and evaporates as oxygen gas on the anode plate and hydrogen gas on the cathode plate, which reduces the amount of electrolyte. Therefore, it is necessary to replenish with distilled water, etc., and antimony (Sb) elutes from the electrode plates, forming a electrode battery and internally discharging, so supplementary charging is required when left unused for a long time. The installation positions were limited to locations where maintenance could be easily performed. In addition, it is necessary to provide exhaust holes to release the oxygen gas and hydrogen gas generated from the anode and cathode plates to the outside, and it is not possible to create a completely sealed structure. Because fluid would leak, there were restrictions on how the battery could be attached to the vehicle body. Restrictions on the mounting position and mounting state of the battery in this way also impede miniaturization and slimming down of the vehicle body.

In the past, it was common to place the battery under the seat, but if the vehicle body structure uses the space under the seat for storage, it is conceivable to place the battery at the front of the vehicle body. However, as mentioned above,
Since conventional batteries can only be arranged vertically, there are the following problems, which need to be solved.

1) If placed behind the head pipe, the leg space for the passenger will be reduced.

2) When placed in front of the head pipe, there is a problem of interference with the front cover.

3) When placed on the side of the head pipe, there is a problem in that the weight balance between the left and right sides of the vehicle body is disrupted.

On the other hand, recently, a maintenance-free sealed battery as shown in FIG. 1 has been developed. 1st
In the figure, 1 is a battery case, 2 is a battery case lid that covers this battery case 1, 3 is an anode plate made of lead and lead-calcium alloy, which is provided with two sheets per cell, and 4 is an anode plate with three sheets per cell. 5 is an anode, a cotton-like separator made of glass fiber with a wire diameter of 1 μm or less is arranged between cathode plates 3 and 4, and 6 and 7 are two anode plates 3. Pole columns 8 and 9 are positive and cathode terminals respectively extending over the three cathode plates 4. Further, reference numeral 10 denotes an exhaust hole provided one per cell, and the gas exhausted from this exhaust hole 10 is passed through a rubber valve 11 provided in the center of the battery case lid 2.
is pushed up, passes through the filter 12, passes through the gap between the inner lid 13 and the upper lid 14, and is discharged to the outside from an exhaust hole (not shown) formed in the side of the upper lid 14.

The battery 15 having such a configuration has a rubber valve 11 in the middle of the exhaust passage to have a completely sealed structure that prevents water from evaporating in the electrolyte, and when it comes to water splitting, the cathode plate is maintained in a discharged state and hydrogen is removed. Water replenishment is not required by preventing gas from being emitted and by utilizing a so-called oxygen cycle in which the cathode plate is exposed to oxygen gas generated from the anode plate and the cathode plate absorbs this oxygen gas. Furthermore, by using calcium alloy electrode plates, the formation of local batteries due to antimony elution in the electrode plates is prevented, and the amount of self-discharge is suppressed, thereby eliminating the need for supplementary charging when left unused for long periods of time. Furthermore, a fine glass mat prevents the electrolyte from flowing out.

In this way, the sealed battery 15 is so-called maintenance-free as it does not require water replenishment or supplementary charging, and the electrolyte does not leak even if it is placed diagonally or horizontally, so it has the feature that there are no restrictions on its installation position or installation condition. There is.

SUMMARY OF THE INVENTION Therefore, the present invention focuses on the features of the sealed battery as described above, and uses this sealed battery to effectively utilize less space in the vehicle body, thereby making it possible to make the vehicle body smaller and slimmer. The object of the present invention is to provide a battery arrangement structure for a two-wheeled vehicle.

In order to achieve this object, in the battery arrangement structure according to the present invention, in a motorcycle having a printed cover that slopes diagonally downward from the top of the head pipe toward the front of the front wheel, the battery is placed inside the front cover and in front of the head pipe. A concave portion is formed, and the closed battery is arranged so as to be inclined backward along the surface forming the concave portion.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to FIGS. 2 and 3.

FIG. 2 is a side view of a motorcycle according to the present invention, and FIG. 3 is a sectional view showing an embodiment of the present invention. In FIGS. 2 and 3, a storage section A18 is provided in front of the head pipe 17 to which the front end of the down tube 16 is welded, and a storage section B19 is provided at the rear. A handle 28 is rotatably provided above the head pipe 17, and a main switch (not shown) is provided near the center of the handle 28. The storage section A18 includes a concave inner plate 18a attached to a mounting stay 20 fixed to the head pipe 17 by screws 21, 21, and an inner plate 18a that is swingably supported by a shaft 22 at the lower end. It consists of an outer plate 18b which functions as a front cover and is provided to be openable and closable with respect to the opening. The outer plate 18b is inclined diagonally downward from the top of the head pipe 17 toward the front of the front wheel 30. The storage part B19 includes an inner plate 19a that is attached to the mounting stay 20 by screws 23 and provided so as to surround the head pipe 17, and a lower end that is swingable via a shaft 25 by the upper end of the vehicle body cover 24. Supported inner plate 1
Outer plate 19 provided to be openable and closable with respect to the opening of 9a
It consists of b.

Inside one of the storage compartments A18, a sealed battery 15 is disposed so as to be located on the vehicle body center line that includes the central axis of the head pipe 17.
By using the sealed battery 15, there is no fear that the electrolyte will leak even if the battery is placed diagonally or horizontally, so the mounting position of the battery can be set freely. In this embodiment, the battery 15 is provided inside an outer plate 18b serving as a front cover and in front of the head pipe 17, and is tilted rearward along the surface forming the recess with respect to an inner plate 18a forming a recess. For example, attach the mounting stay 2 to the bottom of the inner plate 18a so that the side surface of the battery 15 is approximately perpendicular to the vertical direction of the vehicle body (vertical direction in the figure).
6 and screws 27.

In this way, a recess is provided inside the front cover and in front of the head pipe, and the sealed battery 15 is arranged so as to be tilted backward along the surface forming this recess, so that the battery can be installed in accordance with the shape of the front cover. can be stored, so the battery 15 does not interfere with the front cover.
Furthermore, dead space can be reduced. Additionally, since it is tilted backwards, the center of gravity of the battery can be brought closer to the center of the vehicle body.

Furthermore, by disposing the battery 15 in the storage compartment A18, the distance between the main switch (not shown) disposed near the center of the handle 28 and the battery 15 becomes short, so the cord 29 can be shortened. This makes wiring easier and reduces voltage drop. Also, battery 1
5 is located below the storage part A18, a sufficient volume of the storage space can be ensured, and the battery 15 does not get in the way when putting things in and taking them out.

Note that the present invention is not limited to application to motorcycles, but can also be applied to motorcycles having two rear wheels and a body structure substantially similar to that of a motorcycle.

Effects of the Invention As explained above, in the battery arrangement structure according to the present invention, the sealed battery is arranged so as to be inclined backward along the surface forming the recess provided inside the front cover and in front of the head pipe. This prevents the battery from interfering with the front cover, reduces dead space, and makes effective use of less space on the vehicle body, making the vehicle body smaller and slimmer. Because it is a physical vehicle, it is also possible to increase the distributed load on the front wheels. Furthermore, since the distance between the battery and the main switch is shortened, the cord can be shortened, making wiring easier and reducing voltage drop.

[Brief explanation of drawings]

FIG. 1 is a perspective view including a partially broken surface of a sealed battery, FIG. 2 is a side view of a motorcycle according to the present invention, and FIG. 3 is a sectional view showing an embodiment of the present invention. Explanation of symbols of main parts 15... Sealed battery, 16... Down tube, 17... Head pipe, 18... Storage section A, 19... Storage section B, 2
0, 26...Mounting stay, 28...Handle.

Claims (1)

[Claims] 1 A battery arrangement structure for a motorcycle having a front cover that slopes obliquely downward from the top of the head pipe toward the front of the front wheel, wherein a recess is formed inside the front cover and in front of the head pipe, and the closed type A battery arrangement structure characterized in that the battery is arranged so as to be tilted backward along the surface forming the recess.