JPS581372Y2 - Battery loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a battery loading device suitable for application to an electric vehicle using a battery.

First, prior to explaining the present invention, a golf cart, which is an example of an electric vehicle, will be explained. FIG. 1 is a diagram showing how the golf cart is used.

In the figure, 1 indicates a frame of a golf cart, and 2 indicates a running handle. This golf cart is mainly used for transporting objects 3 such as golf bags, but also carries a user 4 such as a golfer. It is something that can be done.

Note that 5 indicates battery exchange fields provided on both sides of the frame 1, and 6 indicates running wheels.

FIG. 2 shows a specific example of the battery loading device of the present invention, and is a plan view showing the battery loading device set at a predetermined position inside the Corfu cart.

Further, FIG. 3 is a longitudinal sectional view taken along the line ■-■ in FIG. 2.

Reference numeral 8 indicates a chassis of the vehicle body, and two guide rails 9 having a U-shaped cross section are fixed to the chassis 8 in a direction perpendicular to the chassis 8 so as to face each other.

The battery trolley 10 is guided by the guide rail 9 and is mounted so as to be movable.

In this case, as is clear from FIG. 2, the direction of movement of the battery truck 10 is toward the battery outlet 11 which is closed by the battery exchange field 5 provided in the frame 1 of the vehicle body.

The battery trolley 10 includes a frame 12 with a cross-section shaped like a rectangular shape provided at a position facing the left and right guide rails 9, a connecting plate 13 for connecting the frame 12, and a moving bearing 14 attached to one end of the frame 12. configured.

The distance t between the rising surfaces of the frame 12 is equal to or slightly larger than the width m of the battery shown in FIG.

The battery truck 10 is supported on the guide rail 9 by the movable bearing 14 and fixed bearings 16 installed at both ends of the guide rail 9 via mounting plates 15.

That is, as shown in FIG. 3, the flat part of the frame 12 of the battery truck 10 is placed on the fixed bearing 16, and the movable bearing 14 is placed on the guide rail 9 while being fitted therein. .

As shown in FIG. 4, the battery 17 is made up of two battery units 18 connected in series, and the two battery units 18 are held together by an L-shaped metal fitting 19.

20 is a long bolt for holding the upper and lower L-shaped fittings 19;
21 indicates a terminal plate held by an insulator 22.

A lead wire 23 taken out from a terminal of the battery unit 18 is connected to this terminal plate 21 .

The insulator 22 is provided with a through hole 24 at a position corresponding to the terminal plate 21 into which a contact rod to be described later is inserted.

Referring again to FIG. 2, 26 indicates the contact rod.

The contact rods 26 are fitted into the through holes 24 of the insulator 22, and therefore two of each are attached to the contact base 27 so as to face in opposite directions.

That is, a through hole into which the contact rod 26 fits is formed in the contact base 27 in parallel to the moving direction of the battery truck 10, and the contact rod 26 is fitted into this through hole.

The contact rod 26 is normally biased in a fixed direction by the coil spring 28, and when the contact rod 26 comes into contact with the terminal plate 21 of the battery 17 placed on the battery trolley 10, the coil spring 28 biases the contact rod 26 into a certain direction. Contact rod 2 on plate 21
6 are brought into contact with each other with a constant pressure (see Fig. 6).

Note that 29 is a stopper that holds one end of the coil spring 28;
Reference numeral 30 indicates a positioning stopper, and the contact rod 26 has a
A lead wire connected to a drive motor, a switch, etc. of the golf cart is connected.

31 indicates the battery cart 10 when the battery cart 10 is moved as shown in FIG. 2 in order to load the batteries placed on the battery cart 10 into a golf cart.
shows a battery trolley shock absorber for the battery to be set in place without impact.

As shown in FIGS. 2 and 5, this shock absorber 31 includes a press-contact plate 32 for locking the frame 12 of the battery truck 10 and the L-shaped fitting 19 of the battery 17, and
It is composed of two stepped guide rods 33 that guide the vertical movement of the plate, a bottom plate 34 on which the guide rods 33 are implanted, and a coil spring 35 that elastically presses the pressure contact plate 32 downward. .

36 is a stopper that holds one end of the coil spring 35;
In the figure, 37 indicates stays for attaching the bottom plate 34 to the chassis 8 of the vehicle body.

As shown in FIGS. 2 and 5, the pressure contact plate 32 is located between the frame 12 of the battery truck 10 and the L-shaped fitting 19.
is set so as to overlap with this pressure contact plate 32.

The shape of the pressure contact plate 32 forms sloped surfaces 38 at both ends thereof,
This sloped surface 38 gradually reduces the moving speed of the frame 12 and the L-shaped fitting 19.

Therefore, when the battery 17 is loaded on the battery truck 10 at a predetermined position, the frame 12 of the battery truck 10 and the end of the L-shaped fitting 19 of the battery 17 are held fixedly by the pressure of the pressure contact plate 32. However, when replacing the battery, this pressure contact plate 32 is attached to the coil spring 3.
5, the guide rod 33 is lowered onto the stepped surface of the stepped guide rod 33.

Note that 39 in FIGS. 5 and 7 indicates a stepped portion formed on the frame 12 of the battery truck 10 to prevent it from coming into contact with the guide rod 33 of the battery truck shock absorber 31.

Since the battery loading device has the above configuration, as shown in FIG. 7, open the battery replacement door 5 of the golf cart, pull out the battery cart 10 to both sides, and place the batch IJ 17 in the selected orientation onto the battery cart 10. After loading, the battery truck 10 is pushed into the vehicle body along the guide rail 9, so that the battery truck 10 slides into the vehicle body very easily.

Then, since the end surface of the frame 12 of the battery truck 10 comes into contact with the sloped surface 38 of the pressure contact plate 32, this pressure contact plate 32
is pushed up against the coil spring 35.

Thereafter, the end surface of the L-shaped metal fitting 19 of the battery 17 similarly comes into contact with the sloped surface 38 of the pressure contact plate 32 and pushes the pressure contact plate 32 up slightly.

As a result, the battery truck 10, which has been pressed at a constant speed, gradually decreases in speed, and the terminal plate 21 of the battery 17 and the contact rod 26 come into contact with each other, so that the battery truck 10 finally stops.

In this case, the contact rod 26 is connected to the battery 1 as shown in FIG.
The battery cart 10 is moved slightly by the inertia force of 7, and the battery cart 10 and the battery 17 are fixedly held in that position by the pressure contact plate 32.

In the above description of the embodiment, it is optional to adopt a structure in which the battery cart 10 is locked to the guide rail 9 or other fixed objects in the state shown in FIG. 7, that is, in the state in which the battery cart 10 is pulled out. Moreover, the present invention can be applied not only to electric cars but also to other devices requiring batteries.

As described above, according to the present invention, the battery cart 10 is movably installed along the guide rail 9, the battery 17 installed on the battery cart 10, and the end portions of the battery 17 and the battery cart 10 are fixed. It consists of an elastically biased pressure contact plate 32 that holds the battery 10 , and a contact rod 26 that electrically connects to the terminal of the battery 17 .
The movement of the terminals of the battery 17 and the contact rod 26 are gradually suppressed by the pressure contact plate 32, and when the battery truck 10 is stopped, the terminals of the battery 17 and the contact rod 26 are
Since battery 1 is configured to be electrically connected to
7 can be taken out for charging and loaded into the vehicle body very easily.

Further, since there is no need to perform any electrical connection work between the terminals of the battery 17 and the inside of the vehicle body when the battery 17 is loaded inside the vehicle body, the workability is extremely improved.

Furthermore, when loading the battery 17 inside the vehicle body,
There is almost no impact on the battery 1γ, so there is no risk of the electrolyte in the battery 17 leaking out.

[Brief explanation of the drawing]

Fig. 1 is a diagram of how the golf cart is used, Fig. 2 is a plan view of the battery loading device, Fig. 3 is a vertical sectional view taken along the line ■-I in Fig. 2, Fig. 4 is a perspective view of the battery, and Fig. 4 is a perspective view of the battery. Figure 5 is a longitudinal sectional view taken along the line ■-■ in Figure 2, and Figure 6 is a vertical cross-sectional view taken along the line VI-VI in Figure 2.
FIG. 7 is a longitudinal sectional view taken along the line and a plan view for explaining the operating state of the battery loading device. 9 is a guide rail, 10 is a battery truck, 17 is a battery, 26 is a contact rod, and 32 is a pressure contact plate.

Claims (1)

[Scope of utility model registration request] A battery truck movably installed along a guide rail, a battery mounted on the battery truck, an elastically biased press-contact plate that fixedly holds the battery and an end of the battery truck, and the battery. and a contact rod that is electrically connected to the terminal of the battery.
A battery loading device that is gradually restrained along a slope provided on the press-contact plate so that a battery terminal and a contact rod are electrically connected when the battery truck is stopped.