JPS6219988Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a digital display electronic timepiece module, particularly to an improvement of a time display changeover switch device for a digital display electronic timepiece module.

Conventionally, the methods for setting the time display to 12-hour or 24-hour format in digital display electronic watches are (1) setting by the bonding position of CMOS/LSI, (2) setting by the sequence switch of the digital display electronic clock. There are three methods: (3) setting by an internal switch of the digital display electronic clock module.

Figure 1 shows the CMOS/digital display electronic clock.
This figure shows the time display setting (12-hour system) depending on the bonding position of the LSI.
2 is a bonding wire, 3 is a time display control terminal, 4 is a 24-hour display terminal, and 5 is a 12-hour display terminal.

FIG. 2 is a diagram showing 20:59:25 in 24-hour display by the sequence switch of the digital display electronic watch, where 21 is the digital display electronic watch and 22 is the sequence switch.

Figure 3 is a circuit diagram when using a time display switching switch of a digital display electronic clock module, where 31 is a CMOS LSI, 32 is a switch piece, 33 is a time display control terminal, and 34 is a 24-hour display terminal. , 35 are 12 hour display terminals. In the illustrated example, a 12-hour display is set by the time display changeover switch circuit.

FIG. 4 is a diagram of an internal switch for time setting of a conventional digital display electronic clock module.
The figure is a sectional view taken along the line 5--5 in FIG. 4 and viewed in the direction of the arrow. 41 is a switch fixing screw, 42 is a switch piece, 43 is a time display control terminal, 44 is a 24-hour display terminal, 45 is a 12-hour display terminal, 54 is a nut, and 56 is a circuit board.
The illustrated example is an example in which the time display changeover switch is set to a 12-hour display.

The above is a conventional example, but in the case of time display switching shown in FIG. 1, it is difficult to produce according to demand, and once the display is fixed to 12 hours, it cannot be converted to 24 hour display. In the case of the method shown in FIG. 2, it is easy to set it externally, but it has the drawbacks of increasing the number of switches on the case and complicating the CMOS/IC design. In the case of the method shown in Fig. 4, in order to configure the switch in a limited narrow space, the switch piece 42 and the switch fixing screw 4 are
1 and the nut 54 are particularly required to be small and expensive, and also have the disadvantage that soldering is required to fix the nut 54 to the circuit board 56.

The purpose of the present invention is to eliminate the above-mentioned drawbacks inherent in the conventional technology, and to create a new digital electronic clock module that has a time display switching device that has a small number of parts, allows easy time setting, is resistant to vibration, and can be fixed stably. Our goal is to provide the following.

In order to achieve the above object, the digital display electronic watch module according to the present invention includes a plurality of screws for assembling the digital display electronic watch module by connecting a circuit board and a module case, and a plurality of screws formed on the circuit board. a time display control terminal disposed between a first time display terminal and a second time display terminal; and one of the plurality of screws formed at a position facing the time display control terminal of the module case. comprises a nut screwed onto the time display control terminal, and a switch piece interposed between the one screw screwed onto the nut and the time display control terminal. and a screw screwed into the nut is used as a module assembly and control screw, and by operating the screw, the switch piece selectively comes into contact with the first or second time display terminal. The feature is that the time display can be selectively switched.

Next, the present invention will be explained in detail with reference to FIGS. 6 and 7.

FIG. 6 is a front view showing an embodiment of the time display switching device which is the main part of the digital display electronic watch module according to the present invention, and FIG. FIG.
In the figure, reference numeral 61 indicates screws for assembling the module, one of which 61a is also used as a screw for fixing the switch piece. 62 is a switch piece that is fitted into a screw 61a, selectively contacts two time display terminals to be described later, and is fixed; 63 is a time display control terminal; 64 is a 24-hour display terminal; 65 is a 12-hour display terminal; Reference numeral 66 indicates a module case, 67 a circuit board, and 77 a module assembly nut. A 24-hour display terminal 64 and a 12-hour display terminal 65 are formed on a circuit board 67 as shown. The module assembly nut 77 is attached to the module case 6.
6 and does not protrude from the module case 66, and since the module case 66 is made of synthetic resin, it is insulated. The module assembly screw 61a is insulated because it is located at a lower position than the surrounding wall portion of the module case 66.

This time display switching device is shown in the illustrated embodiment.
Located in the 12 hour display setting. To change the time display, use the module assembly/switch piece fixing screw 61a.
Loosen the switch piece 62 and connect it to the desired time display terminal (12 hour display terminal 65 or 24 hour display terminal 6).
4), then tighten and fix with the screw 61a.

As explained in detail above, according to the present invention,
It has a simple structure with a small number of parts, and the circuit for selecting 12-hour and 24-hour formats can be formed stably and resistant to vibration, leading to great technical and economical effects on digital display electronic watches.

[Brief explanation of the drawing]

Fig. 1 shows the time display setting using conventional bonding, Fig. 2 shows the time display setting using the conventional sequence switch, and Fig. 3 shows the case using the time display switching switch of the digital display electronic clock module. 4 is a diagram showing the time display setting by the internal switch of the conventional digital display electronic clock module, and FIG. 5 is the circuit diagram of FIG.
- A cross-sectional view taken along line 5 and seen in the direction of the arrow,
FIG. 6 is a front view showing an embodiment of the time display switching device in the digital display electronic watch module according to the present invention, and FIG. FIG. 1, 31... CMOS/LSI, 2... Bonding wire, 3, 33, 43, 63... Time display control terminal, 4, 34, 44, 64... 24 hour display terminal, 5, 35, 45, 65 ...12 hour display terminal,
21...Digital display electronic clock, 22...Sequence switch, 41...Switch piece fixing screw,
54...Natsuto, 56,67...Circuit board, 4
2, 62...Switch piece, 61...Module assembly screw, 61a...Module assembly/switch piece fixing screw, 66...Module case, 77...
Module assembly nut.

Claims (1)

[Scope of utility model registration request] a plurality of screws for assembling a digital display electronic clock module by joining a circuit board and a module case; a 12-hour display terminal and a 24-hour display terminal formed on the circuit board; a time display control terminal provided therein; and a nut formed at a position facing the time display control terminal of the module case and into which one of the plurality of screws is screwed through the time display control terminal. , a switch piece is rotatably interposed between the one screw screwed onto the nut and the time display control terminal and selectively contacts the 12-hour display terminal or the 24-hour display terminal. One screw screwed into the nut is used as a module assembly/control screw, and the screw is operated to connect the switch piece to one side to select the time display between the 12-hour system and the 24-hour system. A digital display electronic clock module that performs the following functions.