JPS5844540Y2 - Battery fixing structure - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a battery fixing structure for a watch.

Various means have been devised for securing batteries in electronic watches.

When fixing the battery from the top surface of the battery, a battery pressing member is required, and furthermore, fastening parts such as screws for fixing the battery pressing member are required.

Further, when using the battery pusher, the screws used to fix the battery pusher apply a strong force to the screw portion in order to increase the pushing force against the battery, so it is necessary to use screws with a large thread diameter.

Furthermore, even if a screw is designed to be used in combination with other screws in order to eliminate the troublesome assembly process, it is difficult to use it in combination with other screws, and a method of fixing the battery using a spring member from the side surface has also been devised.

However, in this case, since the effective length of the spring is short, the Young's modulus is low (E = 21 in the case of iron) to lower the allowable stress of the spring.
000 kg/mm2Becu E = 1200
0 kg/mm2) Becu was used, but there was a drawback that the Becu was corroded due to battery leakage.

In order to solve the above-mentioned drawbacks, the present invention uses an alkali-resistant material for the battery fixing pin instead of the Becu, and in order to improve conductivity, the battery contact part is made elastic and the positive lead of the main plate is removed, and the battery is placed on the side. The purpose is to improve the fixation and eliminate the above-mentioned drawbacks.

Next, the present invention will be explained.

To explain the embodiment in FIG. 1, 1 is a base plate;
A screw pin 7 is provided in the vicinity of the battery storage section provided on the base plate 1, and a pin 10 made of stainless steel and having an elastic portion 10a is provided in the hole 1a of the base plate provided opposite to the screw pin 7. It's driven in.

Reference numeral 3 denotes a circuit board, which has a pattern 3a and is in contact with the battery negative lead plate 5, which is electrically connected to the negative terminal of the battery, through the pattern.

Reference numeral 6 denotes a battery negative lead insulating frame, which maintains insulation so that the negative lead plate 5 does not come into contact with the ground plate which is electrically connected to the positive side of the battery.

Furthermore, the battery negative lead plate insulating frame is positioned by pins 7 and fixed together with circuit board 3 by screws 4.

When the battery 2 is inserted in the above configuration, the pin 10 is bent, and the reaction force of the pin 10 presses the battery 2.

Then, the battery 2 is held and fixed by the circuit board 3 and the pin 10, and at the same time, the positive terminal of the battery is electrically connected to the base plate 1.

FIG. 2 shows another embodiment of the pin installed in the base plate according to the present invention, and FIG. 3 shows a sectional view of FIG. 2.

Moreover, FIG. 4 shows a sectional view of another embodiment.

As described above, according to the present invention, the battery part is fixed by a pin driven into the main plate, and at the same time, the positive side of the battery is grounded to the main plate, so the number of parts is reduced compared to conventional battery fixing means, and automatic Machine processing allows for unattended processing and manufacturing, and in assembly, everything from positioning to driving can be done automatically using a pin stand, making it possible to reduce costs.

In addition, since the pin material is made of stainless steel, it has the effect of preventing corrosion due to battery leakage.

[Brief explanation of drawings]

FIG. 1 is an embodiment of a battery fixing structure, FIG. 2 is another embodiment of the present invention, FIG. 3 is a sectional view of FIG. 2, and FIG. 4 is a sectional view of another embodiment. 1... Main plate, 2... Battery, 10 a.
...Pin according to the present invention.

Claims (1)

[Claim for Utility Model Registration] In a watch that takes a positive lead from the side of the battery, the pin driven into the main plate has an elastic part by means such as a slot, and the elastic part presses the side of the battery. A battery fixing structure characterized in that the battery is fixed and the positive lead of the battery is taken. (2) The battery fixing structure according to claim 1, wherein a plurality of pins having the elastic portion are arranged around the battery.