JPH0244231Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to fixing a battery in a thin battery watch, and particularly relates to the layout of members required for fixing the battery.

[Prior art]

Traditionally, battery fixing for battery watches was done in 1973.
29945, Japanese Utility Model Publication No. 57-31503, and Japanese Utility Model Publication No. 56-164189, a method of securely holding down a battery by providing a battery holding member on the top surface of the battery and fixing it with a screw. Additionally, a method has been adopted in which the positive terminal of the battery is pressed with great force from the side of the battery to prevent it from popping out upwards. However, as battery-powered watches have become popular in recent years and the number of battery replacements has increased, retailers have pointed out the poor workability of removing screws.
It has become a big problem. In addition, in the case of a type that is pressed from the side, an effect can be obtained if the battery is thick and the movement structure can sufficiently guide the surroundings, but a thin movement is required, and when the battery thickness becomes extremely thin as it is now, The battery cannot be securely secured and the exterior gasket gets pinched when closing the back cover. Because the battery moves and pushes the back cover, complaints about changing the dial and back cover are increasing.

〔the purpose〕

The present invention eliminates the above-mentioned drawbacks, secures the battery sufficiently even in thin movements and thin batteries, improves workability during exterior installation, especially when tightening the back cover, and makes battery replacement more efficient. purpose.

〔overview〕

The battery fixing structure of the thin battery watch of the present invention includes a battery attached to a base plate, and a contact member that is locked to the base plate and serves as a positive contact of the battery, and the contact member includes a battery attached to the base plate. A locking portion to be locked, a holding portion formed near the locking portion and positioning the battery in the radial direction, and a corner of the battery extending from the locking portion along the outer periphery of the battery. A spring part having a battery contact part in the form of an inclined surface is formed, and the battery contact part presses the battery in the radial direction by the spring force of the spring part, and cooperates with the holding part. The radial direction of the battery is held by the battery, and the battery is pressed and held in the direction of the base plate by the slope.

〔Example〕

Hereinafter, the present invention will be explained in detail along with examples.

In the present invention, an embodiment will be described in which the positive side of the battery is on the opposite side from the dial.

FIG. 1 is a plan view showing an embodiment of the present invention. Reference numeral 1 denotes a battery for power supply of a battery watch, which is composed of a cathode material and an anode electrolyte, and has square rounded portions 1a and 1b from the cross-sectional shape shown in FIG.

The bar holder 2, which is the positive contact of the battery, has a battery contact part 2a at the tip of the spring part extending from the locking part.
and is fixed to the base plate 5 with fixing screws 12. Since the battery contact portion 2a has an initial deflection in order to take the contact pressure with the battery, it is at the position indicated by the dashed-dotted line when there is no battery. The cross-sectional shape has an inclined surface shape at the part that engages with the corner part of the battery.
This suppresses upward movement of the battery. Further, the spring portion 2b of the bolt holder 2 has a shape larger than the outer diameter of the battery so that the positive terminal spring portion of the bolt holder 2 can be handled even when the battery 1 is present. The battery negative terminal 3 is a tongue-shaped leaf spring having a dowel 3a at its tip, has a force that constantly pushes the battery 1 upward, and is in contact with the cathode of the battery. The side opposite to the dowel 3a engages with the guide portion 9a and the dowel 9b of the circuit receiving seat 9, and is positioned in the plane direction. Further, it has a bent portion 3b so as to provide contact pressure with the circuit board 11 to which a well-known IC or crystal is attached to establish conduction.

The battery holder 4, which is a fixing member for the purpose of fixing the battery, has a bent part 4a that extends along the outer circumference of the battery in a plane, and is formed by a dowel 9b of the circuit seat 9 and a crystal relief hole 10a of the circuit holder 10. The plane position is determined by The base plate 5 has a screw pin 5a, which functions to position the circuit seat 9 and to fix the battery holder 4 and the circuit holder 10 with fixing screws 13.

Reference numeral 6 denotes a battery insulating plate A, which is a member for insulating the battery negative terminal 3 and the positive electrode of the battery 1, and is made of flexible vinyl fluoride or the like.

The battery insulating plate A6 has a trapezoidal hole 6a in the center to enable conduction between the battery negative terminal 3 and the battery, and the planar guide is provided by the battery plate 5c of the base plate 5 and the tongue-shaped battery insulating plate A6. 6b and the main plate resting part 6d, and in terms of cross section, the tongue-shaped part 6c is fixed by being incorporated into the main plate lower part 5b from the battery positive side to the dial 8 side.
Therefore, the battery insulating plate A6 does not come off or move because the tongues 6b and 6c sandwich the base plate vertically. 7 is a battery insulating plate B, which prevents a short circuit between the battery negative terminal 3 and the dial plate 8.

The battery insulating plate B7 has a planar shape that can sufficiently enclose the planar shape of the battery negative terminal 3, and
It has a hole 7a that engages with a machined screw pin 5a. Furthermore, a stepped portion 7d is provided to escape the cross-sectional bending of the battery negative terminal 3, thereby improving the ease of assembling the battery negative terminal 3. The base plate contact portion 7b and the slit portion 7c of the battery insulating plate B7 are designed to escape the deflection of the battery negative terminal 3 when the battery is assembled. Therefore, the battery insulating plate A6 and the battery insulating plate B7 are located above and below the battery negative terminal 3, and are fixed to the main plate 5 by their respective roles of insulation and assembly, so that they do not come off or move. . The dial plate 8 also has the function of receiving the load of the battery 1 together with the slope portion 5d of the main plate 5.
Next, as shown in FIG. 1, battery installation will be explained.

To install the battery 1 from the direction of the arrow, press the battery contact part 2 of the bar holder 2 at the corner part 1b of the battery 1.
Push in the battery 1 while expanding a in the plane direction.
At this time, by making the upper corner portion 1a of the battery 1 fit under the battery holder 4, the battery 1 can be smoothly attached. battery 1
When the battery is set in the movement, the projection of the battery contact portion 2a of the bar holder 2 engages with the corner portion 1a of the battery 1 to prevent the battery from flying upward. Ultimately, the position is determined by the case back (not shown), which is an exterior component.

When replacing the battery, do not loosen the fixing screw 13 of the battery holder 4.
Alternatively, by expanding the spring portion 2b of the bar holder 2 on the outer periphery of the battery to the side opposite to the battery 1, the battery 1 will pop out due to the acting force of the battery negative terminal 3.

〔effect〕

As described above, the present invention forms a battery contact part with an inclined surface that presses against the corner part of the battery at the tip of the spring part that extends along the outer periphery of the battery from the locking part of the bar holder, which is a contact member. By doing so, the battery is held in the radial direction and thickness direction by the holding part of the contact member and the battery contact part, and the battery can be fixed to the main plate, making it extremely easy to replace the battery while keeping the thickness and planar size of the movement the same. A simple, inexpensive battery fixing structure can be provided.

Furthermore, it is the most suitable structure for thin battery watches.

In the present invention, a case has been described in which the positive side of the battery is on the opposite side from the dial, but the effect is exactly the same even in the opposite case.

[Brief explanation of the drawing]

FIG. 1 shows a plan view of an embodiment of the invention. FIG. 2 shows a cross-sectional view of an embodiment of the invention. 1...Battery, 2...Bar holder, 3...Battery negative terminal, 4...Battery holder, 5...Main plate, 6
...Battery insulating board A, 7...Battery insulating board B, 8...
dial.

Claims (1)

[Claims for Utility Model Registration] The battery has a battery attached to a base plate, and a bar holder that is locked to the base plate and electrically conducts with one pole of the battery, and the bar holder includes a battery that is attached to the base plate. A locking portion to be locked, a holding portion formed near the locking portion and positioning the battery in the radial direction, and a corner of the battery at a tip extending from the locking portion along the outer periphery of the battery. A battery contacting part is formed of a spring member having some protrusions that engage with the battery, and the battery contacting part presses the battery in the radial direction by the spring force of the spring part, and also presses the battery in the radial direction with the holding part. 1. A battery fixing structure for a thin battery watch, characterized in that the battery is held in a radial direction by the plurality of protrusions, and the battery is pressed and held in the direction of the base plate by the some protrusions.