JPS63150868A - Car battery - Google Patents

Abstract

PURPOSE:To effectively prevent generation of G pulses in an alternator by piling dielectric films and filmy electrodes alternately on the periphery of a housing in a car battery and winding them so that capacitors connected with the battery are formed to decrease resistance on their connection parts. CONSTITUTION:Filmy electrodes 2 and 3 with dielectric films 1 interposed between them are laminated alternately on the periphery of a battery housing 61 in a car battery 6. This electrode 2 is connected with a positive electrode 4 of the battery 6, and the electrode 3 is connected with a negative electrode 5 of the battery 6. This dielectric film 1 is made of electrolytic paper, and the electrodes 2 and 3 are made of aluminium foils. Thus, a capacitor of large capacity of several farads is formed between the electrodes 2 and 3, and so a voltage drop due to short-time large current at the time of a starting operation can be prevented simply and effectively in a small space without a necessity of installing a large capacitor individually.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vehicle battery, and more particularly to a vehicle battery that can handle a large capacity load for a short time and can effectively prevent the generation of alternator G pulses. .

[Conventional technology]

When starting a vehicle, a large current flows in a relatively short period of time, resulting in a significant drop in battery voltage. In order to suppress the voltage drop at this time, it is possible to increase the battery capacity, but increasing the battery capacity to cope with short-term large currents cannot be adopted because it increases the size and cost.

In addition, if the active material on the electrode plates in the battery falls off, the battery becomes open, and a high-voltage G pulse appears at the output end of the alternator that supplies current to the battery.

[Problem that the invention seeks to solve]

Therefore, it is conceivable to provide a capacitor in order to supply a large current for a short time without voltage drop and also to effectively absorb the G pulse, but for this kind of purpose, a relatively large capacitance is required. The problem was that it required a large capacitor, making it difficult to install it in vehicles with limited space.

The present invention is an attempt to solve the above problem, and requires a separate large capacitor. It is an object of the present invention to provide an inexpensive car battery that can effectively prevent a voltage drop and a G pulse when a large current is supplied without the need for a battery.

[Means for solving problems]

To explain the configuration of the present invention with reference to FIG. 1, a dielectric membrane unit and a membrane electrode 2.3 are wound alternately around the outer periphery of a housing 61 of a vehicle battery 6, and every other membrane electrode 2. Then, the remaining membrane electrode 3 is connected to the positive electrode 4 of the battery 6, and the remaining membrane electrode 3 is connected to the negative electrode 5 of the battery 6.

[action, effect]

According to the vehicle battery having the above configuration, the membrane electrodes 2.3 facing each other with the dielectric film 1 in between constitute a capacitor connected in parallel to the battery, and the capacitor quickly discharges under heavy load for a short time. to suppress the drop in battery voltage,
Further, the G pulse is absorbed and reduced by the capacitor.

According to the present invention, a wide electrode area can be secured by alternately wrapping dielectric films and film-like ICs around the outer periphery of the housing, and a large capacitance capacitor can be installed at low cost without requiring installation space. can do.

〔Example〕

In FIG. 1, on the outer periphery of the side surface of the housing 61 of the vehicle battery 6, dielectric stop films 1'f: sandwiched membrane electrodes 2.3 are alternately stacked, and the two electrodes are connected to each other to form a battery. 6 are connected to the positive electrode 4 of the battery 6, [li3 are connected to each other and connected to the negative electrode 5 of the battery 6. The dielectric film 1 and the film-like electrode 2.3 are covered with a resin layer such as an insulating resin having sulfuric acid resistance, such as ABS resin, and are fixed to the housing 61171.

The dielectric film 1 and the film electrode 2.3 are wound around the outer periphery of the housing 61 in a stacked manner.

This is shown in FIGS. 2 to 4. In FIG. 2, the dielectric material is mainly electrolytic paper impregnated with an electrolytic solution such as ammonium borate, and the membrane electrode 2.3 is aluminum foil. The dielectric film 1 and the film [ff12.3] are laminated with their side edges slightly shifted, and are wound around the outer periphery of the housing 61 as shown in FIG.

The gJI edges (Fig. 4) of the membrane electrodes 2.3, which protrude from the upper and lower sides every other time in the wound state, are connected to each other by K caulking tails, and these are connected to the positive electrode using lead wires 21.31. or connect to the negative pole (Figure 1).

With this structure, a large capacity capacitor of several farads is formed between the above-mentioned membrane electrodes, and it is possible to reduce the voltage drop caused by a large current for a short time when starting the starter, etc., in a small space and at low cost, without installing a separate large capacitor. It can be effectively prevented.

In the above embodiment, since the membrane electrodes are connected to each other around the entire circumference by caulking, the electrical resistance of the connecting portion can be reduced.

In the above embodiments, a so-called electrolytic capacitor which is small in size and has a large capacity is formed between the membrane electrodes, but a film capacitor may also be formed by using a dielectric resin film as the dielectric film.

[Brief explanation of the drawing]

Fig. 1 is a partial cross-sectional side view of the battery, Fig. 2 is a perspective view of a dielectric film and a membrane electrode stacked on top of each other, and Fig. 3 is a dielectric film and a membrane electrode on the battery housing. Electrode 1...-Dielectric film 2.3...Membrane electrode 4...Positive electrode 5--Negative electrode 6--Battery 61--Battery Housing 7...--Resin layer 10 Fig. 2 Fig. 3

Claims (2)

[Claims] (1) Alternately stack dielectric films and film electrodes, wrap them around the outer circumference of the vehicle battery housing, connect every other film electrode to the positive electrode of the battery, and connect the remaining film electrode to the negative electrode of the battery. A vehicle battery characterized by being connected. (2) The vehicle battery according to claim 1, wherein the dielectric film is made of electrolytic paper, and the membrane electrode is made of aluminum foil.