JPH10302811A - Liquid injection type battery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent malfunction of a liquid injection type battery and improve reliability by supporting a glass ampul in which an electrolyte is sealed by an ampul support plate and disposing a cup-shaped ampul pad having an ampul breaking protrusion at its lower part and a synthetic resin molding at the top part. SOLUTION: A laminate-type ring-shaped battery element 2 is housed in a battery case 1, and a glass ampul 4 in which an electrolyte 3 is sealed at its center is disposed, is positioned by a spacer 5, and is supported by a ring- shaped spring plate ampul support plate 6. This support plate 6 is supported a plurality of protrusions 7 of a cup-shaped ampul pad 9 having an ampul breaking protrusion 8 at its bottom portion. In the above liquid injection type battery, on the top of the glass ampul 4, a synthetic resin molder 12 such as polycarbonate is installed. This synthetic resin molder 12 is preferably is ring- shaped, and is disposed at a shoulder part of the glass ampul 4. This battery is actuated as a result of break of the glass ampul 4 when acceleration in upper direction of arrow, and its break is prevented during charge.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid injection type battery used for a projectile requiring a power source for a flying object.

[0002]

2. Description of the Related Art An ordinary projecting object uses a liquid injection type battery as a power source required for flight, and a large acceleration is applied when the projectile is fired. The ampoule made of glass containing the liquid is destroyed, and at the same time, the centrifugal force is given by the rotational movement received by these projectiles, and the electrolyte flows into the battery,
This activates the battery. FIG. 3 is a sectional view of a general conventional liquid injection type battery.

At the center of a stacked ring-shaped battery element 2 housed in a battery case 1, a glass ampule 4 in which an electrolyte 3 is sealed is guided by a positioning spacer 5, and this is placed in a ring shape. It is supported on an ampule support plate 6 made of a metal spring plate. Further, the ampule support plate 6 is placed on a plurality of protrusions 7 of a cup-shaped ampule receiver 9 having a plurality of protrusions 7 on the inner side of the periphery and one ampule breaking protrusion 8 on the bottom. 10 is an output terminal,
11 is a spacer. When an upward acceleration shown by an arrow is applied to the battery, the ampoule support plate 6 is deflected below the protrusion 7 on which the ampoule support plate 6 has been placed as shown in FIG. The glass ampule 4 is broken by colliding with the ampule breaking projection 8 provided on the bottom of the tool 9, and scatters the electrolytic solution in the glass ampule 4. The battery element 2 has a thin steel plate or a nickel plate coated with lead dioxide on one side and coated on the other side with lead. The above is the configuration of a typical liquid injection type battery, which is a power source that can operate sufficiently under conditions that allow normal projection and shooting and turning.

[0004]

In the case of a structure such as an ampule support plate used in a conventional battery activation mechanism, a shock is applied in a direction opposite to the direction of the shock applied when a normal shell is fired. And the head of the glass ampule hits the lid of the battery case and is broken, or the impact is applied to the ampule support plate by the recoil, the ampule support plate comes off from the plurality of protrusions that are the support parts of the cup-shaped ampule receiver, and the glass The ampoule may be broken and the electrolyte in the glass ampoule may be scattered to activate the battery due to malfunction. In particular, there is a problem in that when a shell is loaded into the gun, an impact is applied in the opposite direction, and the battery is erroneously activated.

The present invention solves the above problems and provides a liquid injection type battery which is highly reliable in operation.

[0006]

Means for Solving the Problems To achieve the above object, a liquid injection type battery according to the present invention has a synthetic resin molded body placed above a glass ampule filled with an electrolytic solution. It is characterized by being installed in a ring shape on the shoulder of a glass ampule.

FIG. 2 shows a relationship between an impact time and an impact acceleration G applied to a liquid injection type battery used for flying a projection object. Curves A and B are typical examples of the impact acceleration and impact time that the projectile equipped with the liquid-filled battery receives when the projectile is fired from a gun, for example.
In the case of (1), the general launch impact acceleration and impact time are used, and in the case of (B), the launch impact acceleration is lower than A. Usually, the time until each maximum G is added is a long time such as 10 to 20 ms. On the other hand, what is indicated by C is a typical impact pattern applied to a liquid injection type battery when a shell is loaded into a cannon, and the impact time is within one-tenth of a normal firing impact. In order to activate the battery at a low firing impact acceleration, a thin ampoule support plate, that is, a low-strength one may be used. However, in this case, the head or shoulder of the glass ampoule hits the spacer due to the impact acceleration at the time of loading, and the repulsive force applies an impact to the ampoule support plate from the bottom of the glass ampule, the ampoule support plate operates and the glass ampoule is actuated. There is a risk of being destroyed. According to the present invention, as shown in FIG. 2C, a glass ampoule is used for a shock having both positive and negative directions in a significantly shorter time as compared to A or B by the shock absorbing action of a synthetic resin molded article installed on the upper part of the glass ampule. It is possible to prevent cracking of the battery and prevent unexpected battery activation at the time of loading a shell.

[0008]

Embodiments of the present invention will be described below. FIG. 1 is a sectional view of a liquid injection type battery according to an embodiment of the present invention.

Synthetic resin molded article 1 made of a ring-shaped polycarbonate sheet placed on the shoulder of glass ampule 4
2 is the same as that of FIG. When an upward acceleration shown by an arrow is applied to the battery, the ampoule support plate 6 is deflected below the protrusion 7 on which the ampoule support plate 6 has been placed as shown in FIG. The glass ampule 4 is broken by colliding with the ampule breaking projection 8 provided on the bottom of the tool 9, and scatters the electrolytic solution in the glass ampule 4. Here, the present embodiment is directed to a liquid injection type battery having a configuration in which 15 cells of unit cells are stacked, and a battery (conventional product) in which a synthetic resin molded body is not installed on the shoulder of a glass ampule and a synthetic resin molded body on the upper part of the glass ampule SUS30 for the installed battery (product of the present invention)
The above-mentioned liquid injection type batteries each using 10 ampoule supporting plates having a thickness of 0.06 mm, 0.08 mm, and 0.10 mm made of 4 spring plates having a Vickers strength of 300 to 380 were manufactured.
The battery operation status was examined. The battery operation test was conducted at 300 G transport vibration, 1200 G firing shock, and 2 G as shown in (Table 1).
A loading shock of 000 G (this loading shock has a direction opposite to that of the transport vibration and the firing shock) is performed, and the operation state is shown in (Table 1).

[0010]

[Table 1]

In Table 1, the actuation means that the ampoule support plate made of a spring plate is actuated to break the glass ampule. The ampule is not actuated by the 300G transport vibration, and is not actuated by at least a 1200G firing shock. It must work reliably.

[0012] As shown in Table 1, one of the glass ampules of the present invention in which a synthetic resin molded body was installed on the upper part was one.
A reliable result on the operating surface was obtained, which worked for a 200G firing shock and not for a 2000G loading shock.

In this embodiment, the synthetic resin molded body is made of a polycarbonate ring, but the same effect can be obtained by using a material having a shock absorbing effect, such as a silicone resin, a polyvinyl chloride resin or a polyethylene resin. Although the shape of the ring was used in conformity with the shape of the head of the glass ampule, the same effect can be obtained with a flat plate.

When the thickness of the spring plate is smaller than 0.06 mm, both the product of the present invention and the conventional product have a thickness corresponding to the transport vibration.
It is activated by the impact of G. In addition, when it is larger than 0.10 mm, there is a problem that it does not operate when the firing impact acceleration is low as shown in FIG. 2B. In this embodiment, the thickness of the spring plate is set to a range of 0.10 mm from 0.06 mm. Good to use.

[0015]

As is clear from the above embodiments, the product of the present invention is effective against the shock applied in the opposite direction when the shell is loaded into the cannon, and the reliability of the working surface of the injection type battery is reduced. Improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of an injection type battery according to an embodiment of the present invention.

FIG. 2 is a diagram showing a relationship between an impact time applied to a battery and an impact acceleration G;

FIG. 3 is a cross-sectional view of a conventional liquid injection type battery.

FIG. 4 is a cross-sectional view showing the positional relationship between the ampule support plate and the cup-shaped ampule receiver.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Battery case 2 Battery element 4 Glass ampoule 6 Ampoule support plate 7 Projection 8 Projection for ampoule destruction 9 Cup-shaped ampule holder 12 Synthetic resin molding

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Tetsuji Hayashi 1006 Kazuma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Inventor Kazuhiro Kimura 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (2)

[Claims] 1. A glass ampule filled with an electrolytic solution located in a central cavity of a power generating element, a ring-shaped ampule support plate for supporting the glass ampule, and a plurality of projections surrounding the ampule support plate for supporting the ampule support plate. And a cup-shaped ampule receiver provided with an ampule destruction projection on an inner bottom portion, and a synthetic resin molded body is installed on a glass ampule. 2. The liquid injection type battery according to claim 1, wherein the synthetic resin molded body is installed in a ring shape on a shoulder portion of the glass ampule.