JP4807962B2 - Battery shock absorber - Google Patents

Description

  The present invention relates to a battery buffering jig and a battery buffering method for preventing collision between batteries connected in series.

  In a battery case for storing batteries such as rechargeable batteries and dry batteries connected in series, it is necessary to hold the batteries so as not to vibrate in order to ensure stable conduction. As a method for preventing battery vibration, for example, a coil spring for absorbing vibration is attached to the negative electrode side of the battery case of a flashlight.

  However, since the batteries connected in series are in direct contact with each other in the structure of the flashlight described above, when the flashlight is carried and used, the battery cases repeatedly contact with each other due to repeated vibration. The end surface on the negative electrode side of the battery and the protrusion on the positive electrode side repeatedly collide. For this reason, in particular, in the case of a rechargeable battery that is used for a long period of time while being repeatedly charged, the end face on the negative electrode side is dented by such an impact, and the battery main body is still sufficiently usable even though the usable life remains. There was a problem that had to be replaced.

  Therefore, the present invention has been made in view of the above problems, and prevents collision between adjacent batteries even when a battery case containing batteries connected in series repeatedly receives vibration for a long period of time. In addition, an object of the present invention is to provide a battery buffering jig and a battery buffering method that reliably hold the battery and provide stable conduction.

To achieve the above object, the present onset Ming is mounted between cells connected in series, a battery-buffered jig for performing a buffer between the battery, constituted by the end portion inside of the coil spring A positive electrode fitting portion into which a protrusion of the battery positive electrode is fitted, a negative electrode abutting portion that is in contact with a battery negative electrode, and is constituted by a metal plate provided at the other end of the coil spring; the positive electrode fitting portion and the negative electrode An elastic body provided between the contact portion and configured by the coil spring , wherein a length of the elastic body when contracted is longer than a height of the protrusion of the battery positive electrode (first) 1 invention).

  By using the battery cushioning jig according to the present invention between batteries connected in series, it is possible to prevent collision between adjacent batteries even when the battery case containing the batteries is repeatedly subjected to vibration over a long period of time. The battery is not damaged, and the battery can be used until the end of its life.

  Further, since the battery buffering jig can conduct electricity, even if the batteries are not in contact with each other, stable conduction can be ensured by the elastic body following the movement of the battery due to vibration.

Therefore, even when a battery case containing batteries connected in series is repeatedly subjected to vibration over a long period of time, a battery that prevents adjacent batteries from colliding with each other and reliably holds the battery and provides stable conduction. it is possible to provide a buffer jig.

Hereinafter, a preferred embodiment of a battery shock absorber according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view of a buffer jig according to an embodiment of the present invention. As shown in FIG. 1, the buffer jig 1 includes an elastic body 2 that cushions collisions between batteries connected in series using an elastic restoring force, and is parallel to the electrode surface of the battery at one end of the elastic body 2. And a negative electrode side abutting portion 3 to be joined. The elastic body 2 and the negative electrode side contact portion 3 are both made of a conductive material, and the buffer jig 1 can be conducted.

  The elastic body 2 is made of, for example, a coil spring 2, and the inner diameter of the coil spring 2 is slightly larger than the outer diameter of the positive electrode side protrusion of the battery, and the length of the coil spring 2 when contracted is greater than the height of the positive electrode side protrusion of the battery. long. In this embodiment, the coil spring 2 is used as the elastic body. However, the present invention is not limited to this, and any material having an elastic restoring force such as a metal leaf spring may be used.

  The negative electrode side contact portion 3 is made of, for example, a circular metal plate 3 and is joined to the end portion of the coil spring 2 in a direction parallel to the electrode surface so as to be in close contact with the end surface on the negative electrode side of the battery. In the present embodiment, the circular metal plate 3 is used. However, the present invention is not limited to this, and any metal plate that can conduct electricity such as a donut shape or a square shape may be used. Change accordingly.

  FIG. 2 is a diagram illustrating a state in which a buffer jig is disposed between batteries connected in series according to the embodiment of the present invention. As shown in FIG. 2, the buffer jig 1 is disposed between the battery 4a and the battery 4b in the battery case 5 in which the two batteries 4 (4a, 4b) are housed in series. The circular metal plate 3 of the buffer jig 1 is in close contact with the end face 6 on the negative electrode side of the battery 4a, and the positive protrusion 7 on the positive electrode side of the battery 4b is fitted to the inner periphery of the coil spring 2. Install to have a part.

  Since the length of the coil spring 2 at the time of the most contraction is longer than the height of the protrusion 7 on the positive electrode side of the battery 4b, the protrusion 7 on the positive electrode side of the battery 4b and the negative electrode side of the battery 4b even when the battery case 5 repeatedly receives vibration. When the coil spring 2 follows the movement of the battery 4 due to vibration, the coil spring 2 and the battery 4 are kept in good contact and enable stable conduction.

  As described above, by using the buffer jig 1 according to the present invention, even when the battery case 5 containing the batteries 4 connected in series is repeatedly subjected to vibration over a long period of time, collision between adjacent batteries 4 is prevented. In addition, it is possible to reliably hold the battery 4 and provide stable conduction. Further, by using the buffer jig 1 between the batteries 4 connected in series, even when the battery case 5 repeatedly receives vibration for a long period of time, it is possible to prevent collision between adjacent batteries. Can be used until the end of the battery life.

  In the present embodiment, two batteries 4 (4a, 4b) connected in series have been described. However, the present invention is not limited to this, and three or more batteries 4 can be used. .

It is a perspective view of a buffer jig concerning an embodiment of the present invention. It is a figure which shows the state which has arrange | positioned the buffer jig | tool between the batteries connected in series which concern on embodiment of this invention.

Explanation of symbols

1 Buffer jig 2 Coil spring (elastic body)
3 Circular metal plate (negative-side contact part)
4 Battery 5 Battery case 6 Negative electrode end face 7 Positive electrode protrusion

Claims (1)

A battery buffering jig that is mounted between batteries connected in series and buffers between batteries,
A positive electrode fitting portion configured by one end of the coil spring to be fitted with a protrusion of the battery positive electrode; and
A negative electrode contact portion configured to contact a battery negative electrode, which is formed of a metal plate provided at the other end of the coil spring ;
An elastic body provided between the positive electrode fitting portion and the negative electrode contact portion and configured by the coil spring ;
The battery cushioning jig according to claim 1, wherein a length of the elastic body when contracted is longer than a height of the protrusion of the battery positive electrode .

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