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JPS57110488

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complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JPS57110488
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external perspective view of a portable
electronic watch according to the present invention, FIG. 2 is an exploded perspective view of its
main parts, and FIG. 3 is a sectional view of the assembled state of FIG. FIG. 4 is a cross-sectional
view of a state in which the lid of FIG. 3 is opened. 1... 1 .. .. .. .. .. .. .. .. ...15
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a component
mounting structure in a compact electronic device such as a portable electronic watch.
Conventionally, as a small electronic device, for example, a portable electronic timepiece 111
having a piezoelectric buzzer that generates an alarm sound, and a battery that drives this
piezoelectric buzzer and other functions is known. In this portable electronic timepiece of this
type, the above-mentioned piezoelectric bushing and the above-mentioned battery are housed in
the respective storage cases on each side, and furthermore, these respective storage nurses are
respectively It is clearly set up in the watch case body. For this reason, in the case of the portable
electronic timepiece as described above, when the piezoelectric buzzer and the battery are piled
up and disposed in the watch case main body, the above-mentioned time phase is caused by the
above-mentioned respective storage devices. There is a problem that the thickness of the case
main body becomes thick, and there is also a problem that when the storage cases are arranged
side by side, the above-mentioned watch case main body becomes large. In addition, since the
piezoelectric bushing and the battery are stored in separate storage cases, the number of parts is
increased, and the shaft and the assembling operation are bothersome. Furthermore, the
structure of the watch case main body for housing the above-mentioned storage cases is
complicated, and there is also a disadvantage that the operation is extremely troublesome. The
present invention has been made in consideration of the above points, and the object of the
present invention is to make it possible to dV downsize and thin the small electronic device, and
to simplify the structure and reduce the number of parts, Furthermore, mounting is to provide a
component mounting structure at 2- 015 に to a small electronic device that can easily perform
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work. Hereinafter, an embodiment of the present invention will be described based on the
drawings. In the figure, 1 is a case of a portable electronic watch, and the case 1 is a box-like
frame 2 made of a synthetic resin with an open lower side, and a metal upper portion mounted
on the top of the frame 2 It consists of a panel 3 and a lower panel 4 made of metal attached to
the lower part of the frame 2, and the panels 3 are attached to the 7 frames 2 to cover the frame
2. On the upper surface of the nurse 1, ie, the stop panel 3, the display unit 5 for displaying the
time, various buttons 6 for setting the time, setting of the alarm time, and stopping of the alarm,
and alarm sound are emitted. Sound emission holes 7 are provided. In this case, the sound
release holes 7... Are formed in the upper panel 3 and the 7 frames 2 disposed inside the upper
panel 3.
Further, as shown in FIGS. 2 and 3, an annular holding frame 8 surrounding the sound output
holes 7 is formed on the inner side surface of the frame 2, and the holding frame 3-11 is formed.
1) hold the disk-shaped piezoelectric bushing 9. ! ′つている。 Below the holding frame 8, a
mounting plate 10 for housing and holding the piezoelectric bushing 9 is disposed as follows.
That is, the mounting plate 10 is a square plate made of synthetic st fat, and the insertion holes
12 through which the mounting screws 11 are to be inserted are formed at the four corners
thereof. The mounting plate 10 is mounted on the frame 2 by inserting the mounting screws 11
in the inside and screwing the mounting screws 11 into the screw holes 13 formed in the frame
2 It is made to be able to In addition, the upper surface of the mounting plate 10 is integrally
formed with a buzzer housing a14 for housing the upper sheet "piezoelectric bushing 9" and a
notch through which the lead @ 9a, 9a of the earth lightning bushing 9 is inserted ( Not shown)
is also formed. Further, on the lower surface of the mounting plate 10, a battery housing 16 for
storing a button type lithium battery 15 is integrally formed. The battery storage h16 is notched
from the bowl-shaped storage frame 17 which is plated with the lithium battery 15 and a part of
the storage frame 17, and is introduced into the center of the storage frame 174-101 b from
here One portion 18 of the plate-like spring in contact with one pole 1 of the lithium battery 15
and the other part of the storage frame 17 are cut out and elastically project from the inside of
the storage frame 17 from here. An electrode 19 in contact with the electrode of the lithium
electric oil 15 is provided. Furthermore, an elastic pressing portion 20 is integrally formed on the
lower surface of the mounting plate 10 and on the side of the battery storage portion 16 (left
side in FIG. 3). The elasticity suppressing portion 20 includes a support 8121 suspended from
the lower surface of the mounting plate 10, and two guide locking portions 22.22 horizontally
projecting from the lower ends on both sides of the support 1121 to the battery storage portion
16 @. The guide lock Th22.22k is spread from the elasticity and is elastically deformed in the
horizontal direction by elastic w623, and the pressing portion 24 is formed in the middle of the
elastic portion 23 so as to protrude toward the battery storage portion 16 side. Moreover, the
support wall 21, the guide locking portion 22.22, the elastic portion 23 and the pressing portion
24 are integrally formed. Then, in the lower panel 4 disposed below the mounting plate 10 and
attached to the frame 2, a square (0) 25 is formed in the lower panel 4 (J18 ′ ′) 4. The battery
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cover 26 is detachably attached to the opening 25 of the second embodiment.
The battery cover 26 is a flat plate made of metal, and an inverted insertion portion 27 is formed
at one end thereof, and two inverted engagement claws 28 and 28 are formed at the other end. Is
formed. Therefore, the battery cover 26 is pressed in a state where the battery feature 26 is
pressed to the locking 1% 29.29 side formed on the frame 2 by the elastic force of the elastic
portion 23 of the elastic pressing unit 20. The insertion portion 27 has the guide engagement 1%
22. . The locking claws 28 and 28 are configured to be locked to the locking portions 29 and 29
while being locked to the locking portion 22. Further, on the outer surface 1 of the battery cover
26, protrusions 30... Of non-slip are provided. An eye cover 31 is provided at the opening 25 so
that the inside of the nurse 1 can not be seen. That is, the blinding plate 31 is formed by pressing
and deforming the lower panel 4 to the inside of the opening 25 by pressing, and various
openings are formed. 6-101 ',) ", b, the lead wires 9m and 9a of the piezoelectric tube 9 and the
respective electrodes 18.19 of the battery housing portion 16 are printed circuit boards disposed
in the case 1 (see FIG. Next, a case of assembling the portable electronic watch as described
above will be described. First, the piezoelectric bushing 9 is housed in the bushing housing
portion 14 formed on the upper surface of the mounting plate 10. At this time, the piezoelectric
bushing 9 is! 11 Fix with adhesive or double sided tape. Thereafter, the mounting plate 10 is
lifted so that the piezoelectric bushing 9 corresponds to the holding frame 8 formed on the frame
2, and the mounting screws 11 ... in the insertion holes 12 of the mounting plate 10 ... Are
inserted and screwed into the screw holes 13... Of 7 frames 2. As a result, the piezoelectric plate
9 is attached between the mounting plate 10 and the holding frame 8 and is disposed at a
location corresponding to the sound release holes 7 formed in the frame 2. Thereafter, the upper
panel 3 and the lower panel 4 are dressed on the upper and lower sides of the frame 2
respectively, and the upper panel 7-1 (J :,! L) A battery storage portion 165 formed on the lower
surface of the mounting plate 10. The lithium battery 15 is turned inward, and the battery lid 26
is attached to the upper air Fgi 10 portion 25. In the portable electronic timepiece configured as
described above, the buzzer storage portion 14 for storing the piezoelectric bushing 9 and the
battery storage portion 16 for storing the lithium battery 15 are integrated in one mounting
plate 10. The number of parts can be reduced.
In addition, two storage IF +> 14.16 can be disposed in the case 1 at the same time simply by
mounting the above-mentioned mounting & 10 on the frame 2, so the work of each storage
section 14.16 is easy. It can be done. In addition, since the mounting space for the piezoelectric
bushing 9 and the lithium battery 15 is reduced since they are integrally formed on the front
surface of the attachment portion 100 or the battery housing portion 16 of the buzzer housing
portion 14 and the battery housing portion 16, Case 1 The overall size can also be reduced, and
the thickness at the time of mounting the compressed air blower 9 and the lithium battery 15
can be reduced. 'i',) 1. Since the mounting plate force,, 7 and +10 are made of synthetic resin, the
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respective storage portions 14 ° 21 can be formed at the same time. It can be easily
manufactured. In addition, since the mounting plate 10 is configured to be easily attached to the
7 lam 2 by the mounting screws 11..., It is only necessary to form the screw holes 13. It is easy,
and you can make the structure of Nurse 1 easy. Although only one battery storage portion 16 is
formed in the lower turtle 1 of the mounting plate 10 in the above embodiment, the invention is
not limited to this, and two or more parts may be used instead. May be Further, this invention is
not limited to the above-described portable electronic timepiece, but can be applied to electronic
devices having other piezoelectric buzzers, such as a desk-top electronic calculator. As described
above in detail, the part μ # tank structure in the electronic device of this invention relates to
one side of the mounting plate disposed in the nurse's body of the small mechanical device 9022. In addition to the integrally formed, N-shaped buzzer housing for housing the piezoelectric
bushing and the battery housing for housing the battery on the other side of the mounting plate,
the piezoelectric bushing and [G The mounting space can be reduced, and the small cleaning and
thinning of the small electronic device can be realized, and furthermore, since each storage
portion is formed on one mounting plate, the number of parts can be reduced, and The
attachment of each storage unit has a remarkable effect such as easy work.
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