JPH08295138A - Protective device for battery for electric vehicle - Google Patents

Abstract

PURPOSE: To prevent the damage of batteries and terminals when a baggage box is dropped in error in the removing work of the baggage box, by loading the batteries at the lower side of the baggage box, extending a fixing member to press the batteries to the upper side, and making the extending part as the protective member. CONSTITUTION: In a pickup type electric vehicle, plural batteries 2 are provided in the car lateral direction in a tray provided at the lower side of a baggage box. To each battery 2, a water supply passage 7 is provided integrally in a convex form on the upper side 6 of the battery 2, and the upper side of the water supply passage 7 is pressed by 8 fixing member 8. In this case, one end of the fixing member 8 is extended to a position high in the upper side, and formed as a protective member 13 with a U-shape cross section. A clearance b which is at a level to generate no interference between the upper surface of the protective member 13 and the lower surface of the baggage box, and smaller than the clearance c between a cross member and a terminal, is provided, while a clearance a is provided between the lower surface of the baggage box and the terminal 5. Consequently, the interference with the baggage box is eliminated surely, and the damage and the like of the batteries can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery protector for an electric vehicle, and more particularly to a field for protecting a battery for an electric vehicle arranged under a luggage box.

[0002]

2. Description of the Related Art FIG. 3 is a side view of an arrangement of a battery 2 of a pick type electric vehicle 1. The battery 2 is arranged in a tray 4 arranged below a packing box 3. On the other hand, FIG.
4 is a top view of the battery 2 arranged in the tray 4, and the terminal 5 of the battery 2 has a shape as shown in FIG. 2 (arranged on the battery 2 upper surface 6 in the same figure). In the figure, the same terminal 5 is shown as a rectangular shape. Further, as shown in the figure, a plurality of batteries 2 are arranged in the vehicle width direction, and a replenishment passage 7 is integrally formed in a convex shape at the center of the upper surface 6 of each battery 2. On the other hand, a fixing member 8 having an L-shaped cross section as shown in FIG. 2 is attached transversely so as to press the upper surface of the water replenishment passage 7, and the end portion of the fixing member 8 is fastened to the upper end of the support column 9 with a nut to fix the battery 2 to the tray 4. Hold it inside. Further, as shown in the figure, a cross member 10 for reinforcing the cargo box 3 is arranged on the lower surface of the cargo box 3 in the vehicle width direction. In order to prevent the lower surface of the member 10 and the upper surface of the terminal 5 from interfering with each other when the packing box 3 is arranged, the packing box 3 is arranged with a minimum clearance a between the lower surface of the packing box 3 and the upper surface of the terminal 5. There is. (In the same figure, the packing box 3 indicated by the chain double-dashed line shows the case where the cross member 10 slides when it falls and the terminals 5 interfere with each other.) 11 is a cover of the terminals 5 and is a flexible film. Made of synthetic resin material. Also, 12
Is a pillar that supports the luggage box 3.

[0003]

The above-mentioned conventional techniques have the following problems. Since the tray is arranged under the packing box and the battery is arranged in the tray, it is necessary to remove the packing box every time the battery is replaced or the maintenance of the battery condition is regularly performed. Therefore, the following problems may occur. Since the layout of the packing box is made as low as possible to improve the workability of loading and unloading luggage, etc., there is a minimum gap between the lower surface of the packing box and the upper surface of the battery terminals. The vertical gap between the terminals is c as shown in FIG. 2, and it is necessary to take care so that the packing box, especially the cross member provided on the bottom surface of the packing box, does not interfere with the battery during the work of removing the packing box. If the packing box is accidentally dropped on the battery during the removal work, or the packing box slips when it falls and the cross member on the bottom of the packing box interferes with the battery terminals, the expensive battery may be damaged. In some cases, there is a risk of trouble such as having to replace the battery with a new one. In addition, when the vehicle is rear-impacted, the same trouble as described above may occur such that the luggage box is deformed and interferes with the battery and terminals. The present invention aims to solve these conventional problems.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a fixing member for mounting a battery on the lower side of a luggage box and holding the battery, and a gap between the bottom surface of the luggage box and a cross member. It extends upward until it becomes smaller than the vertical gap between the terminals, and this extended portion is used as a protective member, which acts to prevent interference between the luggage box and the battery.

[0005]

The present invention will be described in detail below with reference to the illustrated embodiments. The battery 2 is arranged in the tray 4, and the packing box 3 is arranged on the upper side of the battery 2 via the column 12, as in the conventional technique. In the present invention, as shown in FIG.
One end of the fixing member 8 that presses the upper surface is extended to a higher position above to form the protective member 13 having a U-shaped cross section, and the upper surface of the member 13 and the lower surface of the luggage box 3 do not interfere with each other and a cross member is formed. A gap b smaller than the gap c between the terminals is provided. On the other hand, a gap a similar to the conventional technique is provided between the lower surface of the luggage box 3 and the upper surface of the terminal 5. (In the figure, the case 3 indicated by the chain double-dashed line slides when dropped and the cross member 10 interferes with the protective member 13 to prevent the interference with the terminal 5.) Since the technique is the same as that of (1), the description is omitted here.

[0006]

Since the present invention is configured as described above, it has the following effects. Even if the packing box accidentally falls onto the battery during the work of removing the packing box, or if the cross member and the terminals are likely to interfere with each other due to sliding when falling, the packing box falls onto the top surface of the protective member ( Since the protective member receives the packing box and prevents the cross member from interfering with the battery and the terminal, it is possible to prevent troubles such as damage and replacement of the expensive battery. In addition, there is no need to worry about "falling down of the luggage box" when attaching and detaching the luggage box, so you can work with peace of mind and the workability is greatly improved. Further, even if the vehicle should be rear-impacted, the arrangement of the plurality of protective members functions to suppress the deformation of the luggage box, so that it is possible to reduce the risk of the luggage box interfering with the battery or the terminals. effective.

[Brief description of drawings]

FIG. 1 is a side view of a main part of a battery showing an embodiment of the present invention.

FIG. 2 is a side view of a main part of a battery showing an embodiment of the prior art.

FIG. 3 is a side view of a battery arrangement of an electric vehicle.

FIG. 4 is a top view of a main part of FIG.

[Explanation of symbols]

 2 Battery 5 Terminal 8 Fixing member 13 Protecting member

Claims (1)

[Claims] 1. A battery is mounted on the lower side of a packing box, and a gap between a fixing member for holding the battery and the bottom surface of the packing box is smaller than a vertical gap between a cross member provided on the bottom surface of the packing box and a battery terminal. A battery protection device for an electric vehicle, characterized in that it is extended upward and the extended portion is used as a protective member.