JPH0617115Y2 - Watch movement with circuit board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an alarm clock, and more particularly to a movement that facilitates circuit formation of a voice clock that sounds a melody or a voice at a set time. is there.

[Prior Art] In recent years, not only alarm clocks that simply ring a bell at a set time but also various melody and synthetic voices called voice clocks have become popular as alarm clocks.

In a voice timepiece that uses a melody or a synthetic voice as an awakening sound, an external circuit that generates an electric signal for an awakening sound using a melody IC, a voice IC, or the like is incorporated in a timepiece body, and is a reference switch incorporated in a timepiece movement. Connect the external circuit and the movement between the external circuit and the movement to connect the external circuit and the speaker with lead wires, and also connect the external circuit and the speaker. When the set time comes, the reference switch is turned on and the external circuit is activated, so that music or voice is generated from the speaker.

In addition, today's timepieces use a movement that allows an extremely accurate timekeeping by rotating a pointer or reference wheel through a train wheel by an oscillation circuit that outputs a reference frequency signal using a crystal oscillator and a step motor. It is often regarded as a movement having a printed circuit board incorporating an oscillation circuit. A part of this printed circuit board is projected to the outside of the movement, and a power supply lead terminal is provided on the exposed part of the printed circuit board projected from this movement. And signal lead terminals are collectively formed to facilitate connection between the movement and the power supply or an external circuit (for example, Jikken Sho 61-42.
No. 149).

[Problems to be Solved by the Invention] As described above, in today's alarm clocks and audio timepieces, a part of the oscillator circuit printed circuit board is projected from the movement, and the lead terminal is arranged on this exposed portion. Although the connection between the external circuit such as the drive circuit and the audio signal generating circuit or the power source and the movement can be easily performed by using the lead wire or the like, the external circuit in the audio timepiece is not limited to the speaker, The number of additional parts such as the volume for adjusting the volume of the melody and the voice is also increased, so the wiring to the external circuit becomes complicated, and the layout design of the external circuit in the watch case becomes complicated due to the higher functionality of the audio timepiece. There was a problem.

[Means for Solving the Problems] According to the present invention, the lower end of a terminal is connected to a printed circuit board for an oscillation circuit incorporated in a movement, and the upper end of the terminal is passed through an upper plate of the movement to form a power supply terminal or an external device. The circuit start signal terminal is formed on the upper surface of the movement, and the circuit board for external circuit, which has an outer shape larger than the outer shape of the movement, is fixed to the upper plate of the movement, and at the portion of the circuit board for external circuit that does not overlap with the movement. An electronic component such as a melody IC is attached, the electronic components are connected by printed wiring, and a terminal portion that comes into contact with the power supply terminal of the movement or the external circuit start signal terminal is formed on the external circuit circuit board with a printed pattern. Further, lead terminals such as power supply lead terminals and speaker lead terminals are arranged on the periphery of the circuit board. I will.

[Operation] In the present invention, since the movement for the timepiece and the circuit board for the external circuit are integrated, the work of fixing the movement and the circuit board for the external circuit to the timepiece case becomes easy.

Further, since the circuit board for the external circuit, which has an outer shape larger than that of the timepiece movement, is fixed to the movement, it is possible to arrange appropriate electronic parts on the outside of the movement, etc., and the power supply terminal of the movement and the external circuit start signal. Since the terminals are placed on the upper surface of the movement and are brought into contact with the terminals formed by the printed pattern on the circuit board for the external circuit, each movement of the movement can be performed without using a lead wire between the movement and the circuit board for the external circuit. The terminal can be connected to an external circuit.

Further, by arranging electronic parts on the movement receiving plate and the external circuit circuit board outside the movement, a thin unit can be obtained.

[Embodiment] In the embodiment of the present invention, as shown in FIGS. 1 and 4, an external circuit is provided in the movement 10 having a reference mechanism in which a reference correction shaft 36 is projected to the outside of the movement 10 and a noise stop switch 31. Fixing the circuit board 40 for, in the circuit board 40,
An electronic component 45 is arranged around the movement 10, and lead terminals provided around the circuit board 40 are connected to a power source and a speaker.

In this embodiment, as shown in FIG.
The lower end of the pin 15 with respect to the printed circuit board 13 mounted in the movement 10 in order to incorporate the oscillation circuit in 10
The two pins 15 are erected so that 16 are buried, and an oscillation circuit for driving a step motor such as a crystal oscillator and a trimmer capacitor (not shown) is formed by a printed pattern formed on the printed circuit board 13 and the two pins 15 It is connected to the lower end 16, and the upper end of each pin 15 is the upper plate 11 of the movement 10.
Is provided so as to penetrate so as to form the power supply terminal 21, and two pins 15 are also set up on the printed circuit board 13 in the same manner, and these two pins 15 are not shown in the figure. The external circuit activation signal terminal 25 is formed by connecting the contact point and the reference contact point incorporated in the train wheel mechanism to the printed pattern, and projecting the upper end of each pin 15 from the upper plate 11 of the movement 10.

The upper plate 11 of the movement 10 is provided with a screw hole 38 as shown in FIG. 2 so that the circuit board 40 for an external circuit can be fixed to the upper plate 11 of the movement 10 with a screw 43.

Further, as the external circuit circuit board 40, a circuit board having an outer shape larger than that of the movement 10 is used, and when the external circuit circuit board 40 is fixed to the timepiece movement 10, a collar portion 41 is provided around the movement 10. To form
Further, the power supply terminal portion 51 that comes into contact with the power supply terminal 21 and the external circuit start signal terminal 25 that are projected from the upper plate 11 of the movement 10.
A terminal portion such as a start signal terminal portion 52 and a start signal terminal portion 52 is formed by a printed pattern, and the power supply terminal portion 51 is connected to a power supply lead terminal 55 formed on the peripheral edge of the external circuit circuit board 40 by a printed pattern to surround the movement 10. Electronic parts 45 such as a melody IC, a voice IC, and appropriate resistors and capacitors are attached to the collar part 41 of the circuit board 40 formed in the above, and each connection terminal part 53 for fixing each lead part of the electronic part 45 by soldering. And the start signal terminal portion 52 are appropriately connected by a printed pattern, and a speaker lead terminal 56 and a volume lead terminal 57 are provided on the periphery of the external circuit circuit board 40.
Is formed by a print pattern.

The external circuit circuit board 40 has a through hole 46 through which the pointer correction shaft 34 and the guide correction shaft 36 penetrate, a through hole 47 through which the operation portion of the noise suppression switch 31 penetrates, and the external circuit circuit board. When 40 is fixed to the watch movement 10,
A through hole 48 for exposing the move mounting hole 39 for fixing 10 to the watch case is formed at a required position.

Therefore, the circuit board 40 for the external circuit is fixed to the upper plate 11 of the timepiece movement 10 with screws, and the upper ends of the pins 15, which are the power supply terminals 21 protruding from the upper plate 11 of the movement 10, are attached to the circuit board 40 for the external circuit. The small hole is penetrated to come into contact with the power supply terminal portion 51, and the upper end of the pin 15 which is the external circuit activation signal terminal 25 projected from the upper plate 11 of the movement 10 is penetrated through the small hole of the circuit board 40 to be activated. By contacting the signal terminal part 52 and fixing each terminal by soldering to each terminal part,
The circuit board 40 for the external circuit and the movement 10 can be integrated together and the electric circuit can be connected. The movement 10 is fixed to the case of the timepiece by using the movement mounting hole 39, and is fixed to the pointer correcting shaft 34. Adjust the pointer adjustment knob 33 to the reference adjustment axis.
While installing the guide adjustment knob 35 on the 36, between the power supply lead terminal 55 formed on the periphery of the collar 41 and the power supply, a speaker and a volume adjusting volume and a speaker lead terminal 56 and volume separately attached to the watch case Lead terminal
The audio timepiece can be easily assembled and manufactured by connecting 57 and 57 with lead wires.

Further, in the above embodiment, the movement 10 having the noise stop switch 31 and the circuit board 40 for the external circuit are integrated, but the reference mechanism incorporated in the movement 10 has only the reference contact and stops the noise. Even the movement 10 in which the switch 31 is not incorporated can be integrated with the circuit board 40 for the external circuit.

In the second embodiment using the movement 10 having no ringing switch, as the wiring inside the movement 10, the lower end 16 of the pin 15 forming the external circuit start signal terminal 25 is connected to the reference contact by a printed pattern, and the external circuit is connected. As shown in FIG. 5, the circuit board for use 40 has a lead terminal 58 for the noise suppression switch formed on the peripheral portion of the circuit board for external circuit 40, and one of the start signal terminal portion 52 and the lead terminal 58 for the noise suppression switch.
Connect one end with a printed pattern and attach the noise suppression switch lead terminal 58 to the watch case. Connect in series.

And as still another embodiment, a circuit board for an external circuit
In addition to arranging various electronic components 45 for sound signal generation on the collar portion 41 of 40, a printed pattern for attaching an oscillation circuit that generates a reference frequency signal such as a crystal oscillator is also applied, and the output terminal of the oscillation circuit is the power supply terminal. By connecting to the reference frequency signal terminal portion to be replaced with the portion 51, the step motor and the speed reduction train wheel are built in, and the coil terminal of the step motor is directly connected to the power supply terminal 21 so that the oscillation circuit is not provided. The movement 10 can also be integrated with the external circuit circuit board 40 by connecting the power supply terminal 21 to the reference frequency signal terminal portion.

Further, the circuit board 40 for the external circuit is not limited to a circular shape, but may have an appropriate shape such as a square shape. Even when the power supply voltage for the oscillation circuit and the power supply voltage for the audio circuit are different, as shown in FIG. This can be done by performing printed wiring so as to add additional lead terminals 55.

The printed pattern for connecting the respective terminal portions on the external circuit circuit board 40 is not limited to the case where it is formed on only one side surface of the external circuit circuit board 40, and the power supply terminals formed on the timepiece movement 10 are provided. The terminals such as 21 are connected to the terminals such as the power supply terminal portion 51 formed on the external circuit circuit board 40 by connecting the terminals provided on the movement 10 to the external circuit circuit board.
Not only when soldering by contacting with the terminal portion provided on the 40, shorten the length of protruding the upper end of the pin 15 forming the power supply terminal 21 and the external circuit start signal terminal 25 from the movement upper plate 11. , Or a pin having a flat head at the upper end, and the power supply terminal portion 51 and the start signal terminal portion 52 are formed on the movement fixing surface of the external circuit circuit board 40, and the power supply terminal 21 and the power supply terminal are provided. When the conductive elastic body is inserted between the portion 51 and the external circuit activation signal terminal 25 and the activation signal terminal portion 52, the external circuit board 40 is screwed to the movement 10 with the terminals and the terminal portion. It is also possible to press and connect with.

[Advantages of the Invention] Since the movement for a timepiece with a circuit board according to the present invention fixes an external circuit circuit board having an outer shape larger than the outer shape of the movement to the movement, the movement of the external circuit circuit board is improved. Electronic parts can be placed on the outside of the movement, and pins that penetrate the movement's upper plate form terminals on the upper surface of the movement, and the terminal portion formed with a printed pattern on the external circuit circuit board and the movement upper plate Since the terminals provided are contact-connected, the lead wire for connecting the movement and the circuit board can be eliminated, and by incorporating the movement with the board into the watch case, a highly functional alarm clock that generates voice or music can be provided. It has an advantage that the assembling work can be facilitated.

[Brief description of drawings]

FIG. 1 is a rear view showing an example of a movement for a timepiece with a circuit board according to the present invention, FIG. 2 is a rear view of the movement for a timepiece, and FIG. 3 is a main part showing an example of connection between terminals and terminal portions. FIG. 4 is a partial sectional view, FIG. 4 is a side view of a timepiece movement with a circuit board, FIG. 5 is a rear view showing a second embodiment of the timepiece movement with a circuit board, and FIG. 6 is another embodiment. FIG. 10 = Clock movement, 11 = Movement top plate, 13 =
Printed circuit board, 15 = pin, 21 = power supply terminal, 25 = external circuit start signal terminal, 31 = stop switch, 33 = pointer adjustment knob, 35 = reference adjustment knob, 38 = screw hole, 39 = move mounting hole, 40 = Circuit board for external circuit, 45 = Electronic components, 46, 47,
48 = through hole, 51, 52 = terminal part, 55, 56, 57, 58 = lead terminal.

Claims (1)

[Scope of utility model registration request] 1. A watch movement having one end connected to a printed circuit board built in the movement and the other end penetrating the upper surface of the movement upper plate and a signal terminal, and an outer shape larger than the movement. A circuit board, a movement is fixed to one surface of the circuit board, electronic parts are attached to a portion of the circuit board that does not overlap with the movement, and lead terminals are formed by a printed pattern on the periphery of the circuit board. Is
In addition, a circuit board is provided, in which required wirings are mutually formed by a printed pattern between the terminal portion which comes into contact with the terminal formed in the movement and the terminal portion which comes into contact with the lead portion of the electronic component. Movement for watches.