JPH0625883Y2 - Battery pack - Google Patents

Description

TECHNICAL FIELD The present invention relates to an assembled battery in which a plurality of cylindrical sealed alkaline storage batteries are converged and electrically connected.

2. Description of the Related Art As shown in FIG. 2, the above-mentioned assembled battery is one in which a plurality of alkaline storage batteries 1 are electrically connected by a lead plate 4 and housed in a container 3 made of, for example, a heat-shrinkable tube of synthetic resin. Is. A flat insulating plate 2 is provided on the upper and lower surfaces of the alkaline storage battery 1.
Abut, and the tube is contracted in this state.
Moreover, the lead wire 5 is drawn out from the container 3 of the heat-shrinkable tube.

Problems to be Solved by the Invention In a sealed alkaline storage battery, the electrolyte may leak when an excessive charging current flows due to an abnormality in the device. In the above-mentioned conventional assembled battery, if the electrolyte leaks, even after the charging is stopped, the batteries in the container are short-circuited by the leaked electrolyte, and an overcurrent flows to cause burnout.

An object of the present invention is to provide an assembled battery in which the short circuit does not occur even if the electrolyte solution leaks.

Means for Solving the Problems In order to solve the above problems, an assembled battery according to the present invention includes a mesh insulating plate 6 as shown in FIG. 1 between the upper and lower surfaces of a battery and a container accommodating the battery. Is interposed. The mesh of the insulating plate 6 is set smaller than the cylindrical diameter of the battery.

Action When the electrolytic solution leaks, the electrolytic solution will accumulate in the mesh of the insulating plate 6. On the other hand, since the battery does not enter the mesh, it is possible to prevent the surface from being significantly wetted by the electrolytic solution.

Example The container for accommodating the assembled battery is generally the heat-shrinkable tube described in FIG. 2, but a rigid synthetic resin case may be used. The mesh of the insulating plate 6 is shown as a lattice in FIG. 1, but the mesh is not limited to this.
An appropriate shape may be set within a range in which the battery cannot enter the mesh.

Effect of the Invention As described above, in the assembled battery according to the present invention, even if the electrolytic solution leaks, this electrolytic solution can be prevented from being accumulated in the mesh of the insulating plate and significantly wet the surface of the battery with the electrolytic solution. This makes it possible to prevent a short circuit between the batteries due to the electrolytic solution.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of an insulating plate used in the assembled battery according to the present invention, and FIG. 2 is a partially cutaway plan view of a conventional assembled battery. 1 is an alkaline storage battery, 3 is a container, 4 is a lead plate, and 6 is a mesh insulating plate.

Claims (2)

[Scope of utility model registration request] 1. A battery pack in which a plurality of sealed alkaline storage batteries each having a cylindrical shape are converged and electrically connected to each other and housed in an electrically insulative container, between the container and the upper and lower surfaces of the battery.
An assembled battery in which an insulating plate having a mesh smaller than the diameter of the cylinder is interposed. 2. The assembled battery according to claim 1, wherein the electrically insulating container is a heat-shrinkable tube of synthetic resin.