JPH1116547A - Storage battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily release heat without forced cooling by a fan by integrally molding a radiation fin made of metal, on a battery jar lid made of synthetic resin, integrally molding a radiation fin made of metal and insulated by synthetic resin on a battery jar made of metal. SOLUTION: A radiation fin 2 made of aluminum is integrally molded on a battery jar lid 1 made of ABS resin. A battery jar 3 is formed of ABS resin similarly to the battery jar lid 1. A positive electrode terminal 4 and a negative electrode terminal 5 are connected to the radiation fin 2 by a bushing 7 through a through-hole 6. The battery jar 3 is welded to the battery jar lid 1 by ultrasonic welding. When a battery jar and battery jar lid made of metal are used, the part contact with the battery jar lid of the radiation fin is covered with an insulating resin, whereby radiation can be executed without any short-circuit between positive electrode and negative electrode.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat radiating structure of a storage battery in which a battery case lid and a metal radiating fin are integrated.

[0002]

2. Description of the Related Art In general, a battery for an electric vehicle uses, as one module, a unit of 12 cells connected in series in a rectangular battery case. However, since the rectangular battery case is connected, heat during charging and discharging is likely to be accumulated, and thus cooling has conventionally been forcibly performed by a fan or the like.

[0003]

When a rectangular battery case is connected, there is no gap between the batteries, so that heat during charging and discharging tends to be accumulated. For this reason, it is necessary to forcibly cool the battery by a fan or the like, and a device such as a fan is required in addition to the battery.

[0004]

Means for Solving the Problems By integrating the radiation fins insulated from the battery case with the battery case lid, the radiation fins can be arranged in all the single cells, so that the heat radiation can be achieved without forced cooling by a fan or the like. It can be easily performed, and since there is no accessory device such as a fan, the volume occupied by the device and the like can be reduced.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A radiating fin made of, for example, aluminum is embedded at a position intersecting a positive electrode terminal and a negative electrode terminal of a resin battery case lid made of, for example, ABS resin, and a battery using a solid electrolyte is connected in parallel or series. The positive electrode terminal and the negative electrode terminal attached to the group and the radiating fins are fixed by a bushing, and are housed in a battery case to obtain a solid electrolyte battery for an electric vehicle.

[0006]

An embodiment of the present invention will be described below with reference to the drawings. The electrodes and other materials and shapes of the present invention are not limited to the examples shown below.

FIG. 1 is a perspective view showing an embodiment of a storage battery according to the present invention, FIG. 2 is a perspective view of a radiation fin, FIG. 3 is a plan view showing a state in which the radiation fin and a battery case lid are integrated, and FIG. A of 3
It is sectional drawing of A 'part.

In the storage battery of the present invention, a heat dissipation fin 2 made of aluminum is integrally formed with a battery case lid 1 made of ABS resin. The battery case 3 is made of ABS resin like the battery case cover 1. The positive electrode terminal 4 and the negative electrode terminal 5 are connected to the radiating fins 2 through bushings 7 through the through holes 6. The radiating fins 2 are connected by a communication body 8 at a lower portion thereof. The battery case 3 and the battery case cover 1 are welded by ultrasonic welding.

In another embodiment, when a battery case and a battery case cover made of metal are used, the portion of the radiating fin that contacts the battery case cover is covered with an insulating resin, so that the positive electrode and the negative electrode are short-circuited. The present invention can be implemented without performing.

[0010]

As described above, the present invention has the following effects.

(1) Since the heat-dissipating fins are provided on the battery case lid, heat can be radiated from the upper portion of the storage battery even when the storage batteries are used collectively.

(2) A heat radiating device such as a fan is not required, and the space occupied by the storage battery can be effectively utilized.

(3) By covering the periphery of the radiation fin with an insulator, it can be used for a metal battery case lid and a metal battery case.

(4) The fixing and conduction between the battery terminal and the radiation fin can be easily connected only by the bushing connection.

[Brief description of the drawings]

FIG. 1 is a perspective view of a storage battery of the present invention.

FIG. 2 is a perspective view of a radiation fin according to the present invention.

FIG. 3 is a plan view of a battery case lid according to the present invention.

FIG. 4 is a cross-sectional view taken along the line A-A ′ of FIG. 3;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 battery case lid 2 heat radiation fin 3 battery case 4 positive electrode terminal 5 negative electrode terminal 6 through hole 7 bushing 8 communicating body

Claims (3)

[Claims] 1. A storage battery comprising a battery case lid made of a synthetic resin and a heat radiation fin made of a metal integrally formed. 2. A storage battery, wherein a heat dissipation fin made of a metal insulated by a synthetic resin is integrally formed on a battery case lid made of a metal. 3. The storage battery according to claim 1, wherein the radiation fin and the battery terminal are connected by a bushing.