JPH0664191U - Electronic clock - Google Patents

Abstract

(57) [Abstract] [Purpose] In an electronic timepiece, the space occupied by a battery conduction fixing portion including an electronic lead terminal, an insulating plate, and a power supply pattern provided in a circuit block is reduced to reduce the size of the timepiece. [Constitution] One end of the battery lead terminal 3 is connected to the circuit block 2
Power supply pattern 1a provided on the lower surface of the
Conduction is made with the cathode 1a of the battery 1 in the recess. The conduction fixing portion 3a of the battery lead terminal 3 is guided and mounted on the guide pins 5a and 5b on the upper surface of the base plate 5 together with the insulating plate 6 mounted on the upper surface thereof, and is fixed by the screw 7. On the conduction fixing portion 3a of the battery lead plate, the power source pattern 1a is arranged on the battery side in the direction away from the battery via the screw 7, and the insulating plates 6 thinner than the power source pattern are arranged so as not to overlap each other. .

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electronic timepiece characterized by a conduction structure between a battery and a circuit block.

[0002]

[Prior art]

 Conventionally, as shown in FIGS. 3 and 4, when a battery lead terminal 3 for conducting the cathode 1a of the battery 1 and the power supply pattern 2a of the circuit block 2 is arranged, the anode portion 1b of the battery 1 and the battery lead terminal 3 are Since the adjacent portions are generated, the insulating plate 4 prevents the cathode and the anode of the battery 1 from being short-circuited. The battery lead terminal 3 has a conducting portion 3a with the power source pattern 2a of the circuit block 2 and positioning holes 3c and 3d. The insulating plate 4 has an insulating portion 4a and positioning holes 4c and 4d. As described above, in the battery conducting structure in the conventional electronic timepiece, the battery lead terminal 3 and the insulating plate 4 independently form the fixing portion and the positioning portion.

[0003]

[Problems to be solved by the device]

 However, in the conventional battery part conduction structure using the insulating plate, since the battery lead terminal and the insulating plate are separately arranged as described above, a large space is required in plan view. As a result, it has been a major obstacle at present when there is a strong demand for downsizing of watches.

Therefore, an object of the present invention is, in order to solve such a conventional problem, on the conduction fixing portion of the battery lead terminal, the conduction portion between the power supply pattern provided in the circuit block and the battery lead terminal, and By arranging an insulating plate that is thinner than the battery lead pattern in a divided manner, the space occupied by the battery conduction fixing part can be minimized to provide a miniaturized timepiece.

[0005]

Means for Solving the Problems In order to solve the above problems, the present invention provides a circuit block on a conduction fixing portion of a battery lead terminal by using an insulating plate having a thickness thinner than a pattern of a circuit board. By arranging the battery lead pattern and the insulating plate separately, the battery lead terminal, the fixing part and the positioning part of the insulating plate can be placed on the same plane without increasing the thickness of the watch, and the watch can be miniaturized. I was able to plan.

[0006]

[Action]

 In the battery conduction structure configured as described above, the timepiece can be downsized by efficiently disposing the power supply pattern and the insulating plate on the conduction fixing portion of the battery lead terminal.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 and 2, reference numeral 5 denotes a base plate which is made of plastic and serves as a base for supporting the timepiece components. A battery lead terminal 3 for electrically connecting a cathode 1a, which is a sealing lid that serves as one pole of the battery 1, and a circuit block 2 that outputs a time reference signal by the power source of the battery 1, is connected to the cathode of the battery 1 in the recess of the main plate 5. It is arranged to be guided by guide pins 5a and 5b provided on an upper part of the main plate 5 so as to elastically contact with 1a.

An insulating plate 6 covers almost half of the fixed portion 3a of the battery lead terminal 3 on the upper part of the battery lead terminal 3, and holes 6c and 6d of the insulating plate 6 are guided by the guide pins 5a and 5b of the battery lead terminal 3. Has been done. The insulating plate 6 extends toward the battery 1 on the battery lead terminal 3 with a shape wider than the planar shape of the battery lead terminal 3, and is an anode portion 1b which is a container serving as the other pole of the battery 1 and the battery 1. The insulating state from the lead terminal 3 is maintained. On the upper portion of the fixed portion 3a of the battery lead terminal 3, there is formed a power source pattern 2a provided on the circuit block 2 so as not to overlap the shape of the insulating plate 6 in plan view. The cross-sectional relationship between the insulating plate 6 and the power supply pattern 2a is such that when the screws 7 are fastened together, the battery lead terminal 3 and the power supply pattern 2a provided on the circuit block 2 are surely electrically connected to each other. The thickness of 6 is set smaller than that of the power supply pattern 2a.

[0009]

[Effect of device]

 As described above, the present invention, as explained above, has the power supply pattern provided on the circuit block, the conduction part between the battery lead terminal, and the insulating plate thinner than the battery lead pattern on the conduction fixing part. By arranging them separately, the space occupied by the battery conduction fixing part is reduced as much as possible, and it has the effect of efficiently utilizing the limited space of the watch and realizing a compact watch with an unprecedented design. .

[Brief description of drawings]

FIG. 1 is a plan view of a battery conducting part of the present invention.

FIG. 2 is a cross-sectional view of a battery conducting part of the present invention. .

FIG. 3 is a plan view of a conventional battery conducting portion.

FIG. 4 is a cross-sectional view of a conventional battery conducting portion.

[Explanation of symbols]

 1 battery 2 circuit block 3 battery lead terminal 4 insulating plate 5 ground plate 6 insulating plate 7 screw

Claims (1)

[Scope of utility model registration request] 1. A battery having a battery terminal having a sealing lid as one pole and a container as the other pole, and the battery terminal for the one pole being located below and mounted in a recess of the main plate, and a power source. A circuit board on which a pattern is formed, a battery lead terminal whose one end is arranged on the side of the power supply pattern and the other end of which is in contact with the one-pole battery terminal, and which is placed on the battery lead terminal The lead terminal is composed of an insulating plate that prevents contact with the battery container forming the other pole, and the circuit board is placed adjacent to the recess of the main plate with the power supply pattern facing down. A tip of the lead terminal on the circuit board side is an electronic timepiece that is disposed so as to overlap with a lower portion of the power supply pattern and is electrically and mechanically crimp-fixed together with the circuit board. , A certain distance from the side It has an unformed portion of the remaining power supply pattern, the insulating plate, the plate thickness does not exceed the thickness of the pattern for power supply, and one end located on the circuit board side of the insulating plate, An electronic timepiece characterized in that the battery lead terminal and the circuit board are inserted into a void formed by an unformed portion of a power supply pattern.