JPH10199497A - Battery device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the contamination of the upper surface of a cover of a unit cell by an electric insulating oil and reduce man-hour of maintenance and checking by arranging a plurality of unit cells in which a distance holding body is fitted to the upper edge part of each unit cell in a housing box, and filling the spaces formed between unit cells and between the unit cells and the housing box by the distance holding body with the electric insulating oil. SOLUTION: A plurality of unit cells 1 are arranged in a housing box 3, and by a distance holding body 2, a space 4A is formed between the unit cells 1 and a space 4B is formed between the unit cells and the housing box 3. A pouring port 5 and an exhaust port 6 of electric insulating oil are formed on the side surface of the housing box 3, and the exhaust port 6 is positioned in the upper part than the pouring port 5 but in the lower part than the distance holding body 2. The distance holding body 2 is formed of a synthetic resin or synthetic rubber, and the spaces 4A, 4B are made liquid-tight. Thereby, even if an electric vehicle or a submarine sailing body on which a battery system device is mounted is vibrated, overflow of electric insulating oil to the upper part than the distance holding body 2 is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembled battery device, and more particularly, to an assembled battery device having a good heat radiation performance and a reduced number of steps required for maintenance and inspection.

[0002]

2. Description of the Related Art An assembled battery device capable of obtaining a high voltage and a large current and maintaining good heat radiation performance continuously for a long period of time is provided between cells and between a cell and a storage box. An electric insulating oil is sealed in a space, and is used for an electric vehicle, an underwater vehicle, and the like, and the one described in Japanese Utility Model Laid-Open No. 6-88047 is known.

In the above-mentioned publication, an electrically insulating oil passage is provided at a lower portion of a battery storage tank containing a unit cell group, and the electrically insulating oil is introduced into the battery storage tank from the electrically insulating oil passage. Although the heat dissipation performance can be improved by the electric insulating oil, it is originally intended to follow the change in water pressure in water, and the lid of the cell group is There is a problem that the man-hour required for the maintenance and inspection of the unit cells increases because the upper surface of the battery is covered with the electric insulating oil.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide an assembled battery device having improved heat radiation performance by injecting electric insulating oil into a battery storage tank.
An object of the present invention is to solve the above-described problem and reduce the man-hour required for maintenance and inspection.

[0005]

According to a first aspect of the present invention, there is provided an assembled battery device, wherein a plurality of cells each having at least an upper edge fitted with a spacing member are arranged in a storage box. An electric insulating oil is filled in a space between the cells and a space between the cells and the storage box formed by the spacing member, whereby an electric vehicle or underwater cruising is provided. Even if the body or the like vibrates, the electric insulating oil does not overflow to the upper part of the spacing member, and the upper surface of the lid of the unit cell is contaminated, thereby preventing an increase in the number of steps required for maintenance and inspection.

According to a second aspect of the present invention, in the battery unit of the first aspect, a heat radiating fin is provided on an outer peripheral surface of the storage box.
The heat radiation performance by the electric insulating oil can be further improved.

According to a third aspect of the present invention, in the battery unit of the first or second aspect, an inlet and an outlet for electric insulating oil are provided on a side surface of the storage box, and the outlet is an inlet. It is characterized in that it is located above and below the spacing member, so that even when the electric insulating oil is injected, the electric insulating oil does not overflow above the spacing member, It is possible to prevent an increase in the number of steps required for maintenance and inspection due to the contamination of the upper surface of the cell lid.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Prior to the description of embodiments of the present invention, a unit cell used for the embodiment will be described.

FIG. 1 is a perspective view of a unit cell used in the embodiment of the present invention.

The feature of the unit cell shown in FIG. 1 is that the spacing member 2 is fitted to the upper edge 10 of the unit cell 1 so that a space 4A is formed between the unit cells 1 and 1 so that the unit cell 1 and the storage unit to be described later can be accommodated. That is, a space 4B is formed between the box and the box.

If the spacing member 2 is made of synthetic resin or synthetic rubber, it can absorb vibrations of an electric vehicle or an underwater vehicle, and the spaces 4A and 4B can be made liquid-tight. The effect can be enhanced.

Although the spacing member 2 is fitted only to the upper edge 10 of the unit cell 1, it may be fitted to the lower edge 11 as well, so that the vibration resistance and the shock resistance can be reduced. It can be further improved.

FIG. 2 is a partially cutaway sectional view of the assembled battery device according to the first embodiment of the present invention in which a plurality of the cells shown in FIG. 1 are arranged in a storage box.

A feature of the assembled battery device shown in FIG. 2 is that a plurality of cells 1 are arranged in a storage box 3, and a space 4 A is provided between the cells 1 and 1 by the spacing member 2 so that A space 4B is formed between the storage box 3 and the storage box 3. The storage box 3 is provided with an inlet 5 and an outlet 6 for electric insulating oil on the side surface. That is, it is located below the spacing member 2.

FIG. 3 is a partially cutaway sectional view of an assembled battery device according to a second embodiment of the present invention in which a plurality of the cells shown in FIG. 1 are arranged in a storage box.

The feature of the assembled battery device shown in FIG.
In the assembled battery device shown in (1), radiation fins 7 are provided on the outer peripheral surface of the storage box 3.

In each of the above-described embodiments, when the electric insulating oil is injected from the inlet 5 and is continuously injected until it overflows from the outlet 6, the liquid level of the electric insulating oil becomes lower than the spacing member 2. Even if it is mounted on an electric vehicle or an underwater vehicle, even if it vibrates, the electric insulating oil does not overflow to the upper part of the spacing member 2 and contamination of the upper surface of the lid of the cell 1 can be prevented.

Further, in each of the above-described embodiments, the spacing members 2 of the adjacent cells 1 are merely brought into contact with each other, but if they are adhered to each other, the vibration resistance and the shock resistance can be further improved. .

Further, in each of the above embodiments, the unit cell 1 in which the spacing member 2 is fitted only to the upper edge portion 10 is used, but the spacing member 2 is fitted also to the lower edge portion 11. By using the unit cell 1 thus made, the vibration resistance and the shock resistance can be further improved.

[0020]

As described above, according to the present invention, it is possible to improve the heat radiation performance of an assembled battery device used for an electric vehicle, an underwater vehicle, etc. Since it is possible to prevent the insulating oil from overflowing, it is possible to reduce the number of man-hours required for maintenance and inspection such as fluid replacement and voltage check.

[Brief description of the drawings]

FIG. 1 is a perspective view of a unit cell used in an assembled battery device of the present invention.

FIG. 2 is a partially cutaway cross-sectional view of the assembled battery device according to the first embodiment.

FIG. 3 is a partially cutaway cross-sectional view of an assembled battery device according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Single cell 2 Spacer 3 Storage box 4A, 4B space 5 Inlet 6 Outlet 7 Radiation fin

Claims (3)

[Claims] 1. A plurality of cells each having at least an upper edge fitted with a spacing member are provided in a storage box, and between cells formed by the spacing member and between the cells and the storage box. A battery assembly characterized in that an electrical insulating oil is sealed in the space defined by the above. 2. The assembled battery device according to claim 1, wherein
An assembled battery device, wherein a radiation fin is provided on an outer peripheral surface of a storage box. 3. The assembled battery device according to claim 1, wherein an inlet and an outlet for electric insulating oil are provided on a side surface of the storage box, wherein the outlet is located above the inlet and from the spacing member. An assembled battery device, which is located below.