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JPS61277155

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DESCRIPTION JPS61277155
[0001]
FIELD OF THE INVENTION The present invention relates to the improvement of a sealed storage
battery. Power supply for consumer portable equipment such as conventional VTR, from the
viewpoint of equipment protection (1) ensuring safety when a positive electrode terminal and a
negative electrode terminal are accidentally shorted, (2) rapid charging by large current is
required Therefore, it has been required that a self-resetting thermostat be incorporated as a
protective device for the purpose of preventing the battery from being deformed due to heat
generation due to overcharging of the battery when the charger breaks down. Conventionally, in
this type of sealed storage battery, an electrode plate group including a positive electrode plate, a
negative electrode plate, and a separator is housed in a battery case made of ABS resin,
polypropylene or the like, and a thermostat is housed on one surface of the battery case wall.
However, in such a conventional storage battery, the thermostat has a disadvantage that only the
heat generation of one cell in a plurality of cells in close proximity is transmitted. Therefore, even
if the cell to which the thermostat is not in close contact generates heat due to a short circuit
between the positive electrode plate and the negative electrode plate, the heat generation of the
cell is not sufficiently transmitted to the thermostat and the heat generation of the battery can
not be prevented. The present invention solves the above-mentioned conventional drawbacks,
and an object of the present invention is to provide a sealed storage battery which is reliably
detected at the time of temperature rise in the battery and is excellent in safety and safety.
Means for Solving the Problems The present invention adheres to a side surface of a unit cell
composed of a plurality of cells, that is, a plurality of cells, and a lead plate integrally connected
to a battery terminal plate across the side surfaces. A thermostat is connected to the end of the
lead plate opposite to the battery terminal plate, and the thermostat is closely attached to the
side of one of the single cells and housed in a case. Operation With this configuration, the
temperature of each cell is detected by the lead plate and the thermostat, and when the
05-05-2019
1
temperature rises abnormally, the thermostat is opened to stop the conduction and protect the
battery from heat and fire. Embodiments of the present invention will be described below with
reference to the drawings. FIG. 1 is an exploded perspective view of a battery showing an
embodiment of the present invention. In the figure, 1 is a single cell, 2 a and 2 b are cases
divided into two, 3 is a thermostat, one end of a thermostat 3 is welded to a lead plate 4, and a
lead plate 4 made of copper plate etc. It is closely attached to the side surface of the unit cell 1,
that is, the side surfaces of a plurality of cells, and is housed in the case 2b. The thermostat 3 is
in close contact with one of the cells 1. The terminal 5a of the unit cell is connected to the lead
wire 3a of the thermostat 3, and the terminal 6b of the unit cell is connected to the case terminal
6b via the IJ-wire 7.
The case terminal 6a paired with 6b doubles as one end of the lead plate 4 opposite to the
thermostat. With the above configuration, the thermostat 3 directly receives the heat generation
of the cell at the end of the unit cell 1 through the cell case of the unit cell and also receives the
heat generation of other cells other than the end via the lead plate 4 It will be. The top view of a
battery is shown in FIG. As shown in FIG. 3, the construction of this sashi-built stat 3 is a bimetal
8, lead wires 9, a metal container 10, an insulating substrate 11 for holding the bimetal, contacts
12, 13 and terminal plates 14. 15. for sealing The insulating filler 1 of FIG. In the sealed type
storage battery premised on such rapid charging, the thermostat operates before the damage of
the casing due to the temperature rise caused at the abnormal heat generation of the battery, and
the battery can be protected by releasing the energization. Effects of the Invention As described
above, the sealed storage battery according to the present invention is not limited to the cell in
which the thermostat is directly liquid, and can detect the abnormal heat generation of the other
cells sufficiently, and can be used in portable equipment as a power source excellent in safety. It
can be used.
[0002]
Brief description of the drawings
[0003]
FIG. 1 is an exploded perspective view at the time of assembly of the sealed storage battery in the
embodiment of the present invention, FIG. 2 is a plan view showing the assembled state of the
battery, and FIG. 3 is a cross sectional view showing the structure of the thermostat. .
1 · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · Case Terminal.
05-05-2019
2
Name of Agent Attorney Nakao Toshio and 1 other person /---single reservoir 4---lead group
05-05-2019
3
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