JP2015115810

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DESCRIPTION JP2015115810
An object of the present invention is to improve the assembly workability without increasing the
number of parts, and to perform voice recording with reduced noise generated by an imaging
device. A microphone has a flexible substrate for wiring a microphone signal, a microphone bush
made of an elastic material and attachable to the microphone, and the microphone bush has a
surface on which a microphone sound collecting unit is disposed. A first microphone enclosure
wall forming an enclosure wall covering a part of a side, and an enclosure covering a side and a
side on which a microphone sound collecting unit excluding the area covered by the first
microphone enclosure wall is disposed A second microphone enclosure wall forming a wall, a
bottom unit covering the back surface of the flexible substrate on which the microphone is
disposed, and a second connector in which the bottom unit and one end of the first microphone
enclosure are foldable It is characterized by comprising: a connecting portion; and a second
connecting portion in which the bottom portion and one end of the second microphone
surrounding wall portion are foldably connected. [Selected figure] Figure 7
Imaging device
[0001]
The present invention relates to an electronic device, and more particularly to an electronic
device provided with a microphone.
[0002]
It is known that noise is reduced by covering the periphery of the microphone with a microphone
holder formed of an elastic material such as rubber and arranging the microphone holder inside
the electronic device.
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[0003]
2. Description of the Related Art Conventionally, digital cameras that record image signals, image
information, and the like output from an imaging device as data files have become widespread.
In a digital camera (hereinafter referred to as an imaging device), light taken from a zoom lens is
imaged on an imaging device, converted into an electrical signal, converted into a digital signal,
and displayed on a liquid crystal display unit.
[0004]
2. Description of the Related Art In recent years, some imaging apparatuses have a moving image
shooting function as well as a still image, and further have a function of recording audio
information during moving image shooting and reproducing audio information in accordance
with moving image reproduction.
In an imaging apparatus having such a moving image shooting function, still images, moving
images and audio information are converted into electric signals and then recorded as data of a
predetermined form on a recording medium.
[0005]
In an imaging apparatus that records such audio information, for example, when performing
simultaneous recording at the time of moving image recording, a microphone built in the imaging
apparatus that is audio input means is used.
[0006]
When voice recording is performed with a microphone built in the imaging device, there arises a
problem that various operation sounds generated from the imaging device are input.
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In the image pickup apparatus, a drive motor is provided to a magnification changing unit (zoom
operation) for moving the photographing lens, a focusing adjustment unit (focus operation), a
shake correction unit, and the like. Therefore, drive noise generated from the drive motor itself
and drive power transmission means (gear etc.) for transmitting drive power of the drive motor,
sliding noise etc. generated when the photographing lens holding frame moves, It originates from
inside the imaging device. In addition, noise is also generated when the lead wires connected to
the microphone and the flexible substrate vibrate.
[0007]
Patent Document 1 discloses a technique for reducing noise such as driving noise and sliding
noise and suppressing the vibration of the microphone by the microphone holder.
[0008]
Patent Document 2 discloses a technique for incorporating a microphone element into a
microphone bush opening smaller than the outer diameter of the microphone element when
inserting the microphone element into the microphone bush.
[0009]
JP 2007-194708 A JP JP 2013-162300 A
[0010]
However, in the prior art disclosed in the above-mentioned Patent Document 1, although the
microphone holder can reduce noise such as driving noise and sliding noise and suppress the
vibration of the microphone, the lead wire and the flexible substrate vibrate. It is not taken into
consideration.
[0011]
In the prior art disclosed in Patent Document 2, when the microphone element is inserted into
the microphone bush, the microphone element is incorporated into a microphone bush opening
smaller than the outer diameter of the microphone element.
Therefore, when assembling, it is necessary to widen the microphone bush opening and insert
the microphone element inside the microphone bush, resulting in low assembly workability.
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[0012]
Also, the microphone bush is provided with a lead wire connected to the microphone and an
insertion port for drawing out the flexible substrate.
The sound generated inside the body from the insertion port may be transmitted to the
microphone and collected, so it is necessary to make it as small as possible.
However, since the lead wires and the flexible substrate are flexible, the lead wires and the
flexible substrate can not be inserted into the small insertion holes as desired, and the assembly
workability is low.
[0013]
In the present invention, in view of such problems, the electronic device according to the present
invention includes a microphone and a flexible substrate for wiring a microphone signal, and a
microphone bush made of an elastic material and attachable to the microphone, and the
microphone bush In the first microphone enclosure wall forming an enclosure wall covering a
part of the side and the side on which the microphone sound collecting unit is disposed, and the
microphone excluding the area covered by the first microphone enclosure wall A second
microphone enclosure wall forming an enclosure wall covering the surface on which the sound
collection unit is disposed and a side, a bottom portion covering the back surface of the flexible
substrate on which the microphone is disposed, a bottom portion and a first microphone
enclosure Providing a first connecting portion foldably connected to one end of the wall portion,
and a second connecting portion foldably connected to the bottom surface and one end of the
second microphone enclosure wall portion It features.
[0014]
An object of the present invention is to provide an imaging device capable of performing sound
recording with reduced noise generated by the imaging device while improving assembly
workability without increasing parts.
[0015]
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FIG. 1A is a front perspective view of an imaging device according to the present invention.
(B) is a back perspective view of an imaging device in connection with the present invention.
It is the expansion ¦ deployment perspective view which expand ¦ deployed each unit which
comprises the external appearance part of the imaging device in connection with this invention.
(A) It is an exploded perspective view in connection with composition and an assembly of a
power button, a reproduction button, and AF̲LED window concerning the present invention. (B)
is an exploded perspective view in connection with composition and an assembly of a zoom lever
concerning the present invention. (C) is an exploded perspective view in connection with
composition and an assembly of a mode dial concerning the present invention. (A) is a
disassembled perspective view explaining the structure of the operation flexible substrate unit
which concerns on this invention. (B) is the front perspective view and back surface perspective
view explaining the mode that the operation flexible unit in connection with this invention was
completed. (C) is a figure explaining a mode that an operation flexible unit in connection with the
present invention is assembled to a top cover. (A) is an exploded perspective view explaining the
composition of the mike bush unit concerning the example of the present invention. (B) is a
perspective view explaining the assembling method of the microphone bush concerning the
example of the present invention. (C) is a perspective view explaining the assembling method of
the microphone holder concerning the example of the present invention. It is a disassembled
perspective view in connection with a structure and assembly of a wireless-communications
board unit concerning the present invention. (A) is a figure explaining a mode that a microphone
holder unit and a wireless-communications board unit in connection with this invention are
assembled to an upper surface cover. (B) is sectional drawing explaining the state of the
microphone bush in the upper surface cover unit state in connection with this invention.
[0016]
Hereinafter, preferred embodiments of the present invention will be described in detail based on
the accompanying drawings.
[0017]
Embodiment 1 Hereinafter, embodiments according to the present invention will be described in
detail with reference to the attached drawings.
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[0018]
FIG. 1 is an external view according to an embodiment of the present invention, and FIG. 1 (a) is a
perspective view seen from the front, and FIG. 1 (b) is a perspective view seen from the back.
In FIG. 1A, a photographing optical system lens barrel 2 on which an object image is formed on
an image pickup element is fixed to the image pickup apparatus main body 1.
[0019]
The imaging device main body 1 is configured by a front cover 31, a rear cover 71, and a side
cover 61.
The front cover 31 and the rear cover 71 are formed by subjecting a plate material made of
metal such as aluminum and stainless steel to processing such as pressing. The upper surface
cover 40 and the side cover 61 are formed of resin. The photographing optical system lens barrel
2 is a well-known lens barrel which is a retractable zoom lens and on which a photographing
lens, a zoom mechanism, a shutter mechanism, a focusing mechanism and the like are mounted.
When being carried, it is retracted in the imaging device main body 1.
[0020]
Behind the photographing optical system lens barrel 2, an image pickup element (not shown)
such as a CCD or a CMOS image sensor which photoelectrically converts an optical image to
generate image data is mounted. The image pickup apparatus main body 1 is mounted with a
CPU that is a central processing unit of a camera, and a main substrate (not shown) provided
with a connector for electrically connecting each flexible wiring substrate is mounted.
[0021]
At the upper right of the imaging device body 1, a strobe unit 5 is provided which emits light
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when the brightness of the subject is insufficient at the time of shooting. An upper surface cover
unit 4 is provided on the upper surface of the imaging device main body 1. The upper surface
cover unit 4 is provided with an AF̲LED window 41 for emitting light when improving the
accuracy of the automatic focusing and a microphone hole 401 for taking voice into a
microphone built in the imaging device at the center of the imaging device body 1.
[0022]
Further, the upper surface cover unit 4 is attached with a power button 42, a reproduction
button 43, a shutter button 44, a rotation operation type zoom lever 45, and a rotation operation
type mode dial 46. A battery cover 8 is provided below the imaging apparatus main body 1 and
can open and close a battery chamber for storing a main battery as a power source and a
recording medium for recording a photographed object image. The main battery may be a singleuse primary battery or a rechargeable battery. By opening the battery cover 8, the battery
chamber is opened and the main battery and the recording medium can be inserted and
removed.
[0023]
FIG. 1B shows a perspective view of the electronic imaging device of the present invention as
viewed from the rear. Power supply and signal input / output jacks are provided on the grip side
surface of the imaging apparatus main body 1 and cover members 91 and 92 for jack protection
are attached. By opening the cover members 91 and 92, it is possible to insert and remove
various cables from the input and output jacks.
[0024]
A liquid crystal display (LCD) 10 is provided on the back of the imaging device body 1. The liquid
crystal display (LCD) 10 is used to confirm an image of a subject to be captured and to reproduce
and display the captured image. A plurality of operation button groups 72 are provided beside
the liquid crystal display (LCD) 10. The plurality of operation button groups 72 are used, for
example, to designate functions such as change of shooting conditions and change of display
mode of the LCD.
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[0025]
Hereinafter, the configuration of the microphone holder in the upper surface cover unit of the
present invention will be described with reference to FIGS. 2 to 5.
[0026]
FIG. 2 is an exploded perspective view of the units constituting the appearance part of the
imaging apparatus of the present invention.
The imaging device of the present invention is completed by assembling the front cover unit 3,
the upper surface cover unit 4, the side cover unit 6, and the rear cover unit 7 that constitute the
external part with respect to the internal components of the main body.
[0027]
3 to 7 are exploded perspective views for explaining components of the upper surface cover unit.
The power button 42 and the playback button 43 are attached from the back of the top cover 40.
The key tops 42a and 43a of the power button and the reproduction button are removed from
the holes of the top surface cover member 40, and the fixed adhesive portions 42c and 43c at
the tips of the spring portions 42b and 43b extending from the key tops 42a and 42a Insert the
adhesive into the shafts 402c and 403c and fix it.
[0028]
The AF̲LED window 41 slides the window 41a from the hole of the upper surface cover member
40, inserts the shaft 41a extending from the flange of the window into the recess 401a provided
in the upper surface cover, and pours in and fixes the adhesive.
[0029]
The release button 44 has a disk-shaped key top 44a on the top surface, and a shaft 44b
extending downward from the center of the key top.
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The shaft 44b is provided with a groove shape 44c for attaching the E-ring 440.
[0030]
Two steps of hollow portions exist on the upper surface of the zoom lever 45, and a large hollow
portion on the upper side has a space into which the key top 44a of the release button is
inserted. There is a space for accommodating the compression spring 441 in the lower small
hollow portion. At the center of the two-step hollow portion, a hole 45a is provided through
which the shaft 44b of the release button passes. A rotation shaft 45 b is provided on the lower
surface of the zoom lever 45. Shafts 45c (two locations) and zoom holder mounting shafts 45d
are provided at approximately equal intervals at three locations outside the rotation shaft 45b. At
the center of the shaft 45c, a screw hole into which a self-tapping screw is screwed is provided.
At the tip of the zoom holder mounting shaft, a boss is inserted which is inserted into the hole
450b of the zoom holder 450 and restricts the position.
[0031]
The compression spring 441 is inserted into the small hollow portion of the zoom lever 45, and
the release button 44 is assembled from above. The shaft 44b of the release button 44 is inserted
into the hole 45a, and the release button is pushed in until the groove 44c provided on the shaft
44b is visible, and the E ring 440 is assembled. The release button 44 receives a force that urges
the release button upward by the compression spring 441, and the E-ring 440 is configured to
prevent the zoom lever 45 from coming off. When the release button 44 is released after
pressing the release button 44, the force of the compression spring 441 automatically returns to
the initial position in the upward direction.
[0032]
The upper surface cover 40 is provided with a through hole 405 a so that the rotary shaft 45 b
extending in the lower direction of the zoom lever 45 can be inserted. The through hole 405a is a
rotation center hole of the zoom lever 45, and is in rotational sliding engagement with the
rotation shaft 45b. Further, the upper surface cover 40 has a plurality of (three) fan-shaped
shapes so that shafts 45c (two places) extending from the zoom lever and arranged at
substantially equal intervals in the outer direction and a zoom holder mounting shaft 45d can be
inserted. A through hole 405b is also provided. The fan-shaped through hole 405 b and the shaft
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45 c constitute a rotation stopper of the zoom lever 45.
[0033]
The coil spring 451 is a spring for giving a return force for returning the zoom lever to the
neutral position, and is made of a piano wire or a stainless steel wire. A coil spring arm that is
assembled by being wound on a coil spring seat winding portion 451a inserted into the shaft
405c provided on the lower surface of the upper surface cover member and a T-shaped spring
hook portion 450c provided on the zoom holder There is 451b. A screw hole for screwing a selftapping screw is provided at the center of the coil spring 451 and the shaft 405 c to be attached.
[0034]
The zoom holder 450 has a hole 450a for inserting the shaft 45b of the zoom lever, a hole 450b
for receiving the zoom holder mounting shaft 45d of the zoom lever, and two through holes
450d for screws 452 for fixing the zoom lever 45 and the zoom holder 450 (two places). Is
provided. Further, the zoom holder 450 is provided with an arm portion 450e which is rotated so
as to sandwich the lever member of the zoom switch mounted on the operation flexible substrate
(see the figure).
[0035]
First, the shaft 45b of the zoom lever and the zoom holder mounting shaft 45d are inserted into
the sector shape 405b of the upper surface cover, and the zoom holder 450 is applied from the
lower side so as to sandwich the upper surface cover 40. The positions of the zoom lever shaft
45b and the zoom holder mounting shaft 45d are determined through the holes 450a and 450b
provided in the zoom holder, respectively, and are screwed and integrated by the fixing screws
452 (two places). After the zoom lever 45 and the zoom holder 450 are attached to the upper
surface base 40, a coil spring 451 is attached which gives a return force for returning the zoom
lever moved by the operation to the neutral position.
[0036]
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The mode dial 46 has a disk-like key top 46 a on the top surface, and an axis 46 b extending
downward from the center of the key top. A concave click 46c is provided inside the key top 46a.
When the dial is rotated, a ball member 465 biased by the compression spring 464 is resiliently
engaged with the click portion 46c at predetermined rotation angles. Further, a screw hole 46c
for screwing a screw is provided at the center of the shaft 46b, and brush holder mounting ribs
46d (two places) are extended at the tip of the shaft 46b.
[0037]
The brush holder 461 is provided with a hole 461a for receiving the attachment rib 46d of the
mode dial, and a through hole 461b for a screw 463 for fixing the mode dial 46 and the brush
holder 460. Further, the brush holder is provided with a shaft 461c for regulating the position of
the contact brush and a shaft 461d for thermally welding the contact brush.
[0038]
The contact brush 462 is provided with holes 462c and 462d corresponding to the shaft 461c of
the brush holder 461 and the shaft 461d for thermal welding, and the position is determined by
passing the shaft through the corresponding hole, and the shaft 461d is heat caulked Integrate
by doing.
[0039]
First, the compression spring 464 and the ball member 465 are inserted into a hollow portion
(not shown) provided on the upper side of the upper surface cover.
Next, the shaft 46b of the mode dial is inserted into the bearing hole 406b of the upper surface
cover, and the contact brush is heat-squeezed from the lower side so as to sandwich the upper
surface cover 40 to apply the integrated brush holder. The mounting rib 46d of the mode dial
passes through the hole 461a provided in the brush holder, and its position is determined, and is
screwed and integrated by the fixing screw 463. When the mode dial 46 is operated, the contact
brush 462 shorts the dial pattern (see the figure) for detecting the mode of the operation flexible
substrate as the mode dial 46 is rotated. By this, it is possible to determine at which rotation
position the mode dial is stopped on the imaging device main body side.
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[0040]
FIG. 4 is an exploded perspective view showing the configuration of the operation flexible
substrate and the method of assembling the operation flexible substrate unit. 4 (a) is an exploded
perspective view for explaining the configuration of the operation flexible substrate, and FIG. 4
(b) is a front perspective view and a rear perspective view showing the completed state of the
operation flexible substrate unit. c) is a figure explaining a mode that an operation flexible
substrate unit is integrated in an upper surface cover.
[0041]
The operation flexible substrate 12 includes a shutter switch 12a pressed by the release button
44, a zoom switch 12b, a power switch 12c pressed by the power button, a playback switch 12d
pressed by the playback button, and a contact brush 462 of the mode dial. A conductive pattern
12m having a plurality of divided arc-like patterns is provided at a position corresponding to the
motion trajectory. The conductive pattern 12m is formed into a plurality of divided circular arcs,
and when the mode dial is rotated by an operation, it is possible to switch the contact at each
predetermined rotational angle position. The two microphones 12e are disposed with a
predetermined distance by sandwiching the reproduction switch 12d in a microphone winding
portion 12j formed in a substantially linear shape in parallel with the width direction of the
imaging device. The wireless substrate connection winding portion 12f is formed in a straight
line parallel to the microphone winding portion 12j, and a contact portion 12fa for connecting
the wireless substrate is formed at the tip.
[0042]
The operation flexible substrate 12 is connected to a main substrate (not shown) via a connector
12g. Operation The input signal received by the flexible substrate is sent to the CPU of the main
substrate to enable the operation of the imaging device.
[0043]
The operation flexible substrate 12 is fixed by passing through the holes 12 h of the operation
flexible substrate through the positioning pins 121 a and 121 b projecting from the operation
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flexible substrate holding sheet metal 121, and is fixed by the double-sided adhesive tape 122.
Furthermore, the operation flexible substrate is bent 180 degrees from the bending portion 12i,
wound around the back surface side of the operation flexible substrate holding sheet metal 121,
and fixed with a double-sided tape (not shown), whereby the operation flexible substrate unit
120 is completed. Also in this state, the microphone crawling unit 12 j and the wireless substrate
crawling unit 12 f are set in such a distance relationship that they do not cover in the projection
plane when the imaging device main body is viewed from the top.
[0044]
The position of the operation flexible substrate unit 120 is determined by passing the positioning
pin 121 a through the hole 407 a of the upper surface cover. In the upper surface cover 40, shaft
portions 405c, 407b, and 407c having screw holes for screwing self-tapping screws at central
positions are provided at positions corresponding to the fixing screws 123 and 124, and are
screwed and fixed. The screw 124 is configured to sandwich and clamp together a strap metal
plate 13 having a strap attachment portion formed thereon.
[0045]
FIG. 5 is a view for explaining the method of assembling the microphone bush and the
microphone holder. The operation flexible substrate 12 has a microphone winding portion 12 j
formed in a substantially linear shape in parallel with the width direction of the imaging device.
Two microphones 12e and a reproduction switch 12d are disposed in the microphone crawling
unit 12j. The two microphones 12e are disposed at a predetermined distance with the
reproduction switch 12d interposed therebetween in order to give a sense of stereo. A sound
collecting unit 12ea is formed on the top surface of the microphone 12e. Since the reproduction
switch 12d is not operated at the time of moving image recording, noise such as a switch
operation sound is not recorded even if the reproduction switch is disposed in the vicinity of the
microphone 12e.
[0046]
The microphone bush 17 is formed of an elastic member such as silicone rubber, and is formed
in a shape that can be attached to the operation flexible substrate 12 on which the microphone is
mounted. The microphone bush 17 is formed with a microphone bush bottom portion 17a that
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covers the back surface of the operation flexible substrate 12 on which the microphone 12e is
disposed. Further, in the product state, the first microphone enclosure wall 17c and the second
microphone enclosure wall 17d are formed to cover the microphone sound collection unit 12ea
surface and the side except for the microphone sound collection unit 12ea and to secure the
sound collection performance. It is done. In each of the microphone enclosures 17c and 17d,
openings 17ca and 17da for exposing the microphone sound collecting unit 12ea in a product
state are formed, and rib-shaped parts 17cb and 17db formed with a constant width around the
openings 17ca and 17da. It is formed.
[0047]
The bottom surface portion 17a and the microphone surrounding wall portions 17c and 17d are
formed by a first connecting portion 17ca and a second connecting portion 17da which are
extended from two surfaces facing in parallel with the microphone winding portion 12j of the
operation flexible substrate 12 and facing each other. They are foldably connected. In the singlepiece condition of the microphone bushes 17c and 17d, the first connection portion 17ca and the
second connection portion 17da are formed so as to be in the spread type state in order to
improve the assembling workability of the microphone 12e in the single-piece condition. An
assembly opening 17e is secured.
[0048]
FIG. 5B is a view showing a state in which the microphone 12e disposed in the microphone
winding portion 12j is inserted inside from the assembly opening 17e formed in the microphone
bush 17.
[0049]
Since the assembly opening 17e of the microphone bush is smaller than the outer shape of the
microphone 12e, the microphone opening 12e is inserted inside the microphone bush 17 by
expanding the assembly opening 17e of the microphone bush.
When the microphone enclosure wall portions 17c and 17d are expanded so as to widen the
assembly opening 17e of the microphone bush, the connecting portions 17ca and 17da formed
from the bottom surface portion 17a are deformed to secure an assembly opening to which the
microphone 12e can be assembled. I can do it. The connecting portions 17ca and 17da are
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formed to a thickness that does not exceed the elastic range due to deformation when the
microphone 12e is assembled. As a result, the microphone enclosure walls 17c and 17d formed
in the connection portions 17ca and 17da are easily formed to be foldable.
[0050]
FIG. 5C is a view showing a state in which the microphone unit 19 assembled in the state of FIG.
5B is housed in the housing portion 18 a of the microphone bush holder 18.
[0051]
The microphone holder 18 is provided with an accommodating portion 18 a in which the
microphone 12 e and the microphone bush 17 are accommodated.
Sidewall portions 18aa and a bottom portion 18ab are formed in the housing portion 18a so as
to surround the side and bottom surfaces of the microphone bush. An insertion port 18 ac is
formed on the surface on which the operation flexible substrate 12 is wound so as to cut out a
part of the side surface of the housing portion 18 a.
[0052]
When the microphone unit 19 starts to be accommodated in the accommodating portion 18a of
the microphone holder, the side wall portion 18aa formed in the accommodating portion 18a
first abuts on the microphone enclosure wall portions 17c and 17d of the microphone bush. The
width 18ac formed by the side walls 18aa of the microphone holder is wider than the width 17g
of the bottom of the microphone bush and narrower than the width 17f of the housing, so the
microphone 12e is formed in accordance with the shape of the side wall. The microphone
enclosures 17c and 17d are deformed so as to cover up. Therefore, by incorporating the
microphone unit 19 into the microphone holder 18, the microphone bush 17 covers the entire
surface excluding the sound collecting portion 12ea of the microphone, thereby preventing noise
and vibration generated from inside the imaging apparatus from entering the inside of the
microphone bush. You can do it.
[0053]
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FIG. 6 is a perspective view showing a configuration and an assembly method for holding a
wireless communication substrate. The wireless communication substrate 14 is a member that
functions in wireless communication with the outside. In general, a radio wave used for wireless
communication is more easily transmitted by resin than metal. In addition, the communication
distance is likely to be reduced if the camera user places it in a place where it is covered by the
hand. Therefore, the wireless communication substrate 14 is disposed not directly below the
metal front cover or rear cover, but directly below the upper cover 40 made of resin, not directly
below the gripped side cover of the imaging device body. As a result, the wireless communication
substrate 14 can easily transmit and receive radio waves to the outside, so that wireless
communication can be performed favorably.
[0054]
A wireless communication antenna 14a and positioning holes 14b, screw holes 11c for fixing,
and a connector 14d for inserting an operation flexible substrate 12 for electrically connecting
the main substrate and the wireless communication substrate are mounted on the wireless
communication substrate 14 doing. Electrical connection is secured by connecting the connector
12 d and the main substrate by the operation flexible substrate 12.
[0055]
The wireless communication substrate 14 is held by combining the wireless communication
substrate holding member 15 and the wireless communication substrate sheet metal 16.
[0056]
The wireless communication sheet metal 16 inserts the positioning holes 16 a of the wireless
communication substrate into the positioning 15 a provided on the wireless communication
substrate holding member 15.
Next, the positioning hole 14b of the wireless communication substrate is inserted into the
positioning 15b provided on the wireless communication substrate holding member. The wireless
communication substrate holding member 15 is formed with a screw hole into which a screw of
a self-tapping screw is screwed and fixed to the wireless communication holding member 15 so
as to sandwich the wireless communication substrate 14 and the wireless communication
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substrate sheet metal 16 Be
[0057]
The element (not shown) on the wireless communication board 14 generates a large amount of
heat when the communication time is long, so the photographer may burn or the circuit may be
broken due to the heat generation of the element. Therefore, by screwing the wireless
communication substrate 14 with the main chassis (not shown) via the extended connection
portion 16b of the wireless communication substrate sheet metal, the heat generation during
wireless communication can be efficiently conducted.
[0058]
FIG. 7A is a view for explaining how the microphone holder unit 20 and the wireless board unit
140 are incorporated into the upper surface cover.
[0059]
First, the position of the microphone holder unit 20 is determined by passing a positioning pin
(not shown) formed on the upper surface cover 40 through the hole 18 b formed on the
microphone holder 18.
Next, the contact portion 12fa of the operation flexible substrate is connected to the connector
portion 14d of the wireless substrate unit 140. Next, the positioning pin (not shown) in which the
microphone holder unit 20 is positioned is passed through the hole 15 b formed in the wireless
substrate holding member 15 to determine the position. The upper surface cover 40 is provided
at the position corresponding to the fixing screws 125 and 126 with a shaft portion in which a
screw hole into which a self-tapping screw is screwed is formed at a central position. Through
holes corresponding to the fixing screws 125 and 126 are formed in the microphone holder 18
and the wireless substrate holding member 15, and the through holes are fixed to the upper
surface cover 40. The fixing screw 125 clamps the wireless communication substrate holding
member 15 and the microphone holder 18 together, and the fixing screw 126 fixes the wireless
communication substrate holding member 15.
[0060]
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FIG. 7 (b) is a cross-sectional view showing the state of the microphone bush incorporated in the
top cover unit according to the present invention.
[0061]
As shown in FIG. 7B, the operation flexible substrate 12 and the microphone 12e are provided
with enclosures 17c and 17d of the microphone bush and predetermined clearances L1 and L2
until they are incorporated in the upper surface cover, as shown in the cross section AA. .
By incorporating the upper surface cover 40, the rib-shaped portions 17cb and 17db of the
microphone bush are crushed by the upper surface cover 4 by the dimension F1. By setting the
predetermined clearances L1 and L2 smaller than the crushing amount F1, the microphone bush
17 crushed by the upper surface cover is in close contact with the operation flexible substrate 12
and the microphone 12e. By adjusting the convex amounts of the rib-shaped portions 17cb and
17db of the microphone bush in this manner, it is possible to adjust the force for pressing the
operation flexible substrate 12 and the microphone 12e. That is, if the convex amount of the ribshaped portions 17cb and 17db of the microphone bush is increased, the pressing force is
increased by increasing the crush amount F1, and if the convex amount is decreased, the crush
amount F1 is reduced. Can be made smaller.
[0062]
As shown in FIG. 7B in the B-B cross section, the enclosure walls 17c and 17d of the microphone
bush are deformed following the side wall 18aa of the microphone holder, and the enclosure
walls 17c and 17d are combined. The microphone 12e is provided with enclosures 17c and 17d
of the microphone bush and a predetermined clearance L3. By incorporating the microphone
bush 17 into the microphone holder 18, the surrounding walls 17c and 17d of the microphone
bush are crushed by the side wall 18aa of the microphone holder by a dimension F2. By setting
the predetermined clearance L3 to be larger than the crushing amount F2, the joint portion H is
always in close contact. By adjusting the width 18aa of the side wall portion, the adhesion of the
joint portion H of the surrounding wall portions can be adjusted.
[0063]
As described above, according to the present embodiment, it is possible to perform voice
recording with reduced noise generated by the imaging device while improving the assembly
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operation of the microphone bush without adding new components. It becomes.
[0064]
As mentioned above, although the preferable embodiment of this invention was described, this
invention is not limited to these embodiment, A various deformation ¦ transformation and change
are possible within the range of the summary.
[0065]
Reference Signs List 1 imaging device main body 12 upper surface flexible substrate 12 e
microphone 17 microphone bush 18 microphone holder
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