JPS6150090A - Portable watch with solar cell - Google Patents

Abstract

PURPOSE:To prevent cracking and spalling of a transparent substrate due to impact, by pushing up the substrate with an elastic member to maintain a clearance between the substrate and a dial plate. CONSTITUTION:A transparent substrate 2 is pushed with elastic members such as more than one coil pring 3 to abut on the undersurface of a fixing frame 5 to secure a clearance between a dial plate 4 and the substrate 2 for preventing mutual interference. So, even when the substrate 2 is impacted, the coil springs 3 serve as buffer means to absorb the impact as it is supported with the coil springs 3. Moreover, the coil springs 3 keep the dial plate 4 from hitting the transparent substrate 2 to crack it through a clearance maintained between the substrate 2 and the dial plate 4 against deformation and bending of the dial plate 4, if any.

Description

[Detailed description of the invention] [Industrial application field] This invention #! A is a thin film thick IS as a rechargeable power source! The present invention relates to the structure of a solar battery-equipped portable watch in which a transparent substrate having a battery is held by an elastic member.

[Conventional technology]

Conventional portable watches with solar cells are made by embedding several crystalline silicon solar cells in the synthetic resin parting plate of digital watches or in the synthetic resin graduations of analog watches and bonding them together using wire bonding. It was used to obtain charging power.

Nowadays, thin, simulated solar cells that are cheaper than conventional crystalline silicon and have more flexibility in the shape of solar cells have emerged and are attracting attention. , which had a structure in which a thin film solar cell was formed on the bottom surface of the watch's cover glass.

[Problem that the invention seeks to solve]

However, with the above-mentioned conventional technology, if the cover glass is damaged or broken, the thin film solar cell formed on the bottom surface of the Kd cover glass must also be replaced, which imposes a very large economic burden on after-sales service and is difficult to manage. Met. In addition, the cover glass with the battery (-i) is directly exposed to the outside, so if all inorganic glass material is used,
Glass reinforcement shop J! I! 9, it is necessary to take measures for waterproof construction to completely prevent water intrusion. Here, in order to strengthen the glass, it is necessary to perform the glass strengthening treatment on a single item and then form a thin film thick-field battery, and because it is a single item process, special and expensive jigs and tools are required. If a solar cell is formed with a waterproof structure using a cover glass, the cost will be extremely high.If a waterproof structure is used with a cover glass, the expensive solar cells will have to be discarded due to the quality yield of waterproofing. Therefore, there is a problem in that the cost is high.

Therefore, the present invention aims to solve these problems.
The purpose of this is to reduce the financial burden on customers in terms of after-sales service, reduce manufacturing costs, and prevent the transparent substrate from cracking or chipping due to impact.
By combining the thin film solar panel on the transparent substrate with the color tone and finish of the dial, we can expand design variations and easily assemble the transparent substrate.[Problem solved] Means for Carrying Out the Measures] In the solar cell watch of the present invention, a transparent substrate having a thin film solar cell formed on its surface is placed on the dial plate, the transparent substrate is pushed upward by an elastic member, and the bottom surface of the body or fixed frame is By making it hit, a gap can be identified between the transparent substrate and the dial, and until the transparent substrate hits the upper surface of the dial,
It is possible to move up and down, and the ball column member is used as a conductive member between the solar cell and the inside of the movement.In addition, a fixed frame is used for positioning and fixing the transparent substrate, and multiple parts are installed at the bottom of the fixed frame. The L-shaped feet of the transparent substrate and the fixed frame are integrated by engaging the L-shaped feet with the corresponding concave portions of the dial.

[Effect]

According to the above configuration of the present invention, when an impact is applied to the transparent substrate, since the transparent substrate is supported by the coil spring, the coil spring acts as a buffer member and absorbs the impact. Yes,
Even when the dial plate is deformed or glued, a gap is maintained between the transparent substrate and the dial plate by the coil spring, so that the dial plate does not hit the transparent substrate and cause cracks. Furthermore, when attaching a needle or removing a nail, by compressing the coil spring, the transparent substrate is lowered until it touches the dial, and even if force is applied to the transparent substrate, the transparent substrate will not be deformed or broken.

〔Example〕

FIG. 1 is a cross-sectional view of essential parts in an embodiment of the present invention, in which 7 is a side body of a mobile watch, 8 is a cover glass, and 9 is a back cover, on the surface of which a thin film solar cell 1 is formed. Transparent substrate 2
is placed between the hands 10 and the dial 4, and in order to fix the transparent substrate 2 between the outer periphery of the transparent substrate 2 and the body 7, a fixing frame 5 is interposed, and the spring force of the inner frame 11 allows the movement to be fixed. 6,
The fixing frame 5 is pushed up through the dial plate 4 and brought into contact with the body 7, thereby fixing the transparent substrate 2 and determining the position I'iT. Further, the transparent substrate 2 is pushed up by two or more elastic members such as coil springs 6 and brought into contact with the lower surface of the fixing frame 5 to prevent mutual interference between the dial 4 and the transparent substrate 2. A void is secured.

Even if a shock is applied to the transparent substrate 2, since the transparent substrate is supported by the coil spring 3, the coil spring acts as a buffer member and absorbs the shock. Also, the dial 4
Even with deformation and warpage, a gap is maintained between the transparent substrate 2 and the dial plate 4 by the coil spring 3, so that the dial plate will not hit the transparent substrate 2 and cause cracks. Furthermore, when attaching and removing the needle, the jig presses against the top of the transparent substrate 2, but the transparent substrate 2 and dial plate 4
If there is a gap between 11J1 and 11J1, there is a risk that the transparent substrate 2 will break when the jig is pressed against the transparent substrate, but according to Honzozo, the coil spring 3 pushes up the transparent substrate 2. When pressed, the coil spring 5 is compressed and the transparent substrate 2 is lowered until it touches the dial 4, so there is no gap.
Even if force is applied to the transparent substrate 2, the dial plate 4 guides it, so the transparent substrate 2 will not break. Here, by using an elastic member such as ;d↑fat for the fixed frame 5,
Since it serves as a buffering member for the transparent substrate 2, it is even more effective against impact resistance.

FIG. 2 is a revised surface view of FIG. 1, and is a lower part KL of the fixed frame 5.
The foot having the letter-shaped protrusion is fully submerged, the corresponding dial part is made concave in plan, the L-shaped protrusion of the fixing frame 5 is engaged, the fixing frame and the dial are fixed, and the transparent substrate 2 is clamped. By this, the transparent substrate 26 dial plate 4. Since the fixed frame 5 is integrated and the movement can be assembled with the three parts set, assembly is easy and problems such as cracking of the transparent substrate during assembly hardly occur. Especially coil spring 6
Since a pushing force is always applied to the transparent substrate 2'fr, if the transparent substrate 2 is assembled alone, the coil spring 6 will cause it to be lifted beyond a predetermined position, making it very difficult to assemble the fixed frame 5 and the warping body 7. ) However, if the three parts are integrated as described above, the three parts can be easily fixed by inserting and fixing the dial part into the main plate hole in the movement.

As one type of thin rj4thick 1-field battery, there is an amorphous silicon Taiyo Kameike, and in Fig. 1, transparent ′,tJ,,j
A thin film solar cell 1 is formed on the lower surface of the E plate 2, and in addition to the solar cells, electrodes for taking out each cell EL cell and a protective film for protecting the thick 1-bow cell are formed under the transparent substrate 2, forming an mK shadow. ing. Here, the solar cell 1 and the capacitor or secondary quartet inside the movement 6 are electrically connected using the coil spring 5 as a conductive member. The coil spring 6 serves both as a buffer member for the transparent substrate 2 and as a conductive member, and in addition to the coil spring, 4-electro rubber, zebra, plate spring, etc. can be used. Further, the transparent substrate 2 may be made of organic glass or the like in addition to inorganic glass.

In addition, in terms of after-sales service, only the battery can be easily replaced, and the cover glass can be replaced without touching the battery, especially for solar cell watches whose selling point is long life. It is effective and reduces the financial burden on customers.

Moreover, since the transparent substrate on which the solar cells are formed cannot be subjected to high-intensity heat treatment, a large number of solar cells are simultaneously formed on a large plate of glass and then cut into individual transparent substrates in post-processing. The manufacturing cost can be significantly reduced by adopting the manufacturing method.

Also, various color tones of the thin film solar cell part and dial part.

Combining this with the finish expands design variations, and also allows the outer periphery of the thin-film solar cell to be covered by the body, resulting in a clean cut area.

〔Effect of the invention〕

According to the present invention, the elastic member is provided with a groove bottom to push up the transparent substrate so as to create a gap between the transparent substrate and the dial, and the transparent substrate can move up and down. Because it is held by an elastic member, cracking, chipping, and nailing of the fALIA board due to impact can be prevented from breaking the transparent board when removing the needle.
It has the effect of

[Brief explanation of drawings]

FIG. 1 is a main sectional view showing an example of a solar battery-equipped portable watch of the present invention. FIG. 2 is a sectional view taken in a different direction from FIGS. 1 and 11. 1...Solar cell 2...Transparent substrate 3...Elastic member (coil spring) 4...
Dial plate 5... Fixed frame 6... Movement 7... Body 8... Cover glass 9... Back cover 10... ...Needle 11...Middle frame or above

Claims (3)

[Claims] (1) A transparent substrate with a thin-film solar cell formed on its surface is pushed up with an elastic member so that there is a certain gap above the dial, and the upward positioning of the transparent substrate and dial is controlled by the body or between the body and the body. A solar cell-equipped mobile watch characterized by a fixed frame interposed between (2) Claim 1, characterized in that the elastic member is used as a conductive member between the solar cell and the inside of the movement.
A portable watch with a solar battery as described in Section 1. (3) A plurality of L-shaped legs are provided at the lower part of the fixed frame, and the L-shaped parts are engaged with the corresponding dial plate recesses to fix the fixed frame and the dial, and the L-shaped parts at the upper part of the fixed frame are fixed. 2. A solar battery-equipped portable watch according to claim 1, further comprising a fixed frame arranged on the lower surface of the transparent substrate using an elastic member for upward positioning.