JP2013088519A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact size electronic apparatus having an enhanced heat radiation effect.SOLUTION: A metal chassis 20 for constituting a part of the battery chamber to accommodate a battery 101, and a first heat conduction sheet 16 in contact with the metal chassis 20 and a front cover 11 are arranged in an enclosure of a digital camera 10. The metal chassis 20 conducts the heat received from a main circuit substrate 21 to the front cover 11 through the first heat conduction sheet 16. A second heat conduction sheet 25 is arranged in contact with the package 21b of the main circuit substrate 21 and an LCD chassis 26. The LCD chassis 26 conducts the heat received from the main circuit substrate 21 to a rear cover 12 through the second heat conduction sheet 25.

Description

  The present invention relates to an electronic device having a heat dissipation structure.

  Digital cameras are required to achieve both high image quality and compactness, and heat from electronic components inside the camera tends to increase due to power consumption during shooting. Therefore, there is a need for a structure that dissipates heat from the electronic components that generate heat. As the heat dissipation structure, a metal heatsink is placed between the CMOS image sensor and the main circuit board, and a heat conduction part is provided on the heatsink, and the heat transmitted to the heatsink is passed through the heat conduction part to the periphery. A technique for suppressing the temperature rise of an electronic component by discharging is known (for example, see Patent Document 1).

JP 2010-93797 A

  However, since the heat dissipation plate used in the heat dissipation structure of Patent Document 1 is arranged away from the CMOS image sensor and the main circuit board, the size of the product increases, which is an obstacle to downsizing.

According to a first aspect of the present invention, there is provided an electronic apparatus including a camera housing having a front cover facing a subject and a rear cover disposed to face the front cover, and a battery that is disposed in the camera housing and houses a battery. A chamber, a metallic battery chamber chassis that forms part of the battery chamber, a battery chamber chassis and the front cover, and are provided in contact with the front chamber to conduct heat from the battery chamber chassis to the front cover. And a main circuit board disposed opposite to the battery chamber chassis behind the battery chamber chassis, the battery chamber chassis receiving heat received from the main circuit board from the first circuit board. Conductive to the front cover through one heat conducting member.
According to a second aspect of the present invention, there is provided an electronic apparatus including a camera housing having a front cover facing a subject and a rear cover disposed to face the front cover, and a battery that is disposed in the camera housing and houses a battery. A chamber, a metallic battery chamber chassis that forms part of the battery chamber, a battery chamber chassis and the front cover, and are provided in contact with the front chamber to conduct heat from the battery chamber chassis to the front cover. 1 heat conduction member, a main circuit board disposed behind the battery chamber chassis and facing the battery chamber chassis, an LCD chassis provided between the main circuit board and the rear cover, and the main circuit board A second heat conductive member provided in contact with the circuit board and the LCD chassis, and conducting heat of the main circuit board to the LCD chassis. The heat received from the circuit board is conducted to the front cover via the first heat conducting member, and the LCD chassis receives the heat received from the main circuit board via the second heat conducting member. It is characterized by comprising conducting to the cover.

  According to the electronic device of the present invention, the heat received by the battery chamber chassis from the main circuit board is conducted to the front cover via the first heat conducting member provided in contact with the battery chamber chassis and the front cover. Therefore, it is possible to achieve compactness while enhancing the heat dissipation effect.

1 is a perspective view schematically showing an external appearance of a digital camera according to an embodiment of the present invention. It is a figure which shows a digital camera typically, Fig.2 (a) is a front view, FIG.2 (b) is a rear view. It is a figure which shows the internal structure of a digital camera, and is the fragmentary sectional view of the camera seen along arrow II of FIG. It is a disassembled perspective view which shows arrangement | positioning of the front component of a digital camera. It is a disassembled perspective view which shows arrangement | positioning of the component behind a digital camera. FIGS. 6A and 6B are diagrams illustrating a state in which an LCD chassis of a digital camera is set on a back cover, in which FIG. 6A is a front view, FIG. 6B is a top view, and FIG. It is a figure which shows the internal structure from the LCD chassis of a digital camera to a back cover, Fig.7 (a) is a rear view, FIG.7 (b) is arrow II-II sectional drawing of Fig.7 (a). It is a perspective view which shows typically the battery chamber of a digital camera.

Hereinafter, the configuration of an electronic apparatus according to an embodiment of the present invention, for example, a digital camera will be described with reference to the drawings.
As shown in FIGS. 1 and 2A, the camera housing 10A of the digital camera 10 includes a front cover 11, a rear cover 12, an upper cover 13, a right cover 14, which face the subject at the time of shooting. It has a left cover 15 and a lower cover (not shown). The front cover 11 is formed with a protrusion 11a for improving holdability. The taking lens barrel 18 is mounted so as to protrude from the circular opening 11 b of the front cover 11. The upper cover 13 is provided with a power button 111, a release button 112, and a mode dial 113 for selecting a shooting mode and a playback mode.

  As shown in FIG. 2B, the rear cover 12 is formed with an LCD opening 12a, and rear operation members such as a menu key 121 and a multi selector 122 are disposed. The menu key 121 is an operation member that switches between display and non-display of menu items used at the time of shooting and playback, and the multi-selector 122 moves the cursor to the target menu item by operating the upper, lower, left, and right keys. This is an operation member for setting the function of the menu item combined with.

FIG. 3 is a partial cross-sectional view of the digital camera 10 as viewed along the arrow II in FIG.
From the front to the back of the digital camera 10 (from top to bottom in the figure), the front cover 11, the first heat conductive sheet 16, the resin frame 17, the metal chassis 20 that holds the battery 101, the main circuit board 21, and the second The heat conductive sheet 25, the LCD chassis 26, the flexible printed wiring board (FPC wiring board) 29a for the back operation member, the FPC chassis 29 holding the FPC wiring board 29a, the substrate 31 for the back operation member, and the rear cover 12 are arranged in this order. Has been. The positions of the first heat conductive sheet 16 and the resin frame 17 in the front-rear direction are substantially the same.

  As shown on the right side of FIG. 3, the taking lens barrel 18 is mounted through a circular opening 11 b formed in the front cover 11 and a circular opening 17 b formed in the resin frame 17. The resin frame 17 is a component that is disposed substantially parallel to the front cover 11 and maintains the mechanical strength of the entire camera.

  The metal chassis 20 has a substantially L-shaped cross section, a main body portion 20a arranged in parallel with the front cover 11 and the rear cover 12, and a bent portion that is bent substantially vertically from the main body portion 20a toward the front cover 11. 20b and the front-end | tip part 20c located in the front-end | tip of the bending part 20b. As shown in the figure, the body portion 20a, the bent portion 20b, the right cover 14 and the resin frame 17 form a space for housing the battery 101, so that the metal chassis 20, the right cover 14 and the resin frame 17 are substantially separated. Configure the battery compartment. Although not shown, a plate-like member that covers the upper and lower sides of the battery 101 is also a constituent member of the battery chamber. When the battery chamber is provided on the left side of the camera, the position of the bent portion 20b with respect to the main body portion 20a is changed, and the left cover 15 is used instead of the right cover 14.

  The front end portion 20c of the metal chassis 20 presses the first heat conductive sheet 16 against the back surface of the front cover 11 through the opening portion 17a of the resin frame 17, and the fixing portion 17c, which is a part of the resin frame 17, has a front end portion. 20c is fixed in the state pressed against the front cover 11. Thereby, each member which the metal chassis 20, the 1st heat conductive sheet 16, and the front cover 11 adjoined will be in the state which contacted. The metal chassis 20 is preferably made of aluminum, aluminum alloy, copper, or copper alloy having good thermal conductivity, but normal steel, alloy steel, tool steel, special steel, etc. may be used, or zinc alloy, magnesium An alloy, a resin containing metal powder, or the like may be used. The first heat conductive sheet 16 is preferably made of a material having high heat conductivity and elasticity, for example, a resin or rubber containing metal powder.

  A main circuit board 21 is disposed behind the metal chassis 20 so as to face the main body 20a with a predetermined interval. The main circuit board 21 includes a printed board 21a and a package 21b mounted on the printed board 21a. The package 21b incorporates a CPU (electronic circuit) that functions as an image processing engine. The second heat conductive sheet 25 is disposed in contact with substantially the entire surface of the package 21b. Similarly to the first heat conductive sheet 16, the second heat conductive sheet 25 is preferably made of a material having high thermal conductivity and elasticity, for example, a resin or rubber containing metal powder.

  An LCD chassis 26 is disposed behind the second heat conductive sheet 25, and the second heat conductive sheet 25 is disposed in contact with the LCD chassis 26. That is, the second heat conductive sheet 25 is in contact with the package 21b and the LCD chassis 26 on both sides thereof. The entire surface of the second heat conductive sheet 25 is in contact with the LCD chassis 26. A flexible printed wiring board (FPC wiring board) 27a for LCD, a flexible printed wiring board (FPC wiring board) 29a for the back operation member, and the FPC chassis 29 are arranged behind the LCD chassis 26, and the back operation is performed at the back. A rear cover 12 on which a member substrate 31 is mounted is disposed. The multi-selector 122 projects from the opening 31a of the substrate 31 for the back operation member.

  The LCD chassis 26 has a long hole 26a that is long in the direction perpendicular to the paper surface at the lower left in the drawing. Although not shown in FIG. 3, the front end portion of the FPC wiring board 27a for LCD and the front end portion of the FPC wiring board 29a for the back operation member, which will be described later, are connected to the connector of the main circuit board 21 through the long holes 26a. Is done. The LCD chassis 26 is preferably made of aluminum, aluminum alloy, copper, or copper alloy having good thermal conductivity, but normal steel, alloy steel, tool steel, special steel, etc. may be used, and zinc alloy, magnesium may be used. An alloy, a resin containing metal powder, or the like may be used.

  The arrangement of components of the digital camera 10 will be described with reference to FIGS. In FIG. 3, the components and their arrangement are described with reference to a partial sectional view of the right half of the digital camera 10, but in FIGS. 4 and 5, the overall shape of each component is shown and described.

  In the digital camera 10 shown in FIG. 4, a description will be given in order from the front cover 11 disposed at the front to the rear cover 12 disposed at the rear. As described above, the front cover 11 in which the circular opening 11b is formed, the upper cover 13 in which the power button 111, the release button 112, and the mode dial 113 are disposed, the right cover 14, the left cover 15, A camera housing is constituted by a lower cover (not shown).

  Behind the front cover 11, a first heat conductive sheet 16, a resin frame 17, a photographing lens barrel 18, and a lens driving mechanism 19 are arranged in this order. The resin frame 17 is formed with a rectangular opening 17a and a circular opening 17b. After assembly, the photographic lens barrel 18 protrudes outside the camera through the circular opening 17b of the resin frame 17 and the circular opening 11b of the front cover 11.

  On the right side of the digital camera 10, a metal chassis 20 constituting a part of the battery chamber is disposed behind the resin frame 17. The metal chassis 20 has a main body portion 20a, a bent portion 20b, and a tip portion 20c located at the tip of the bent portion 20b. As a result of the assembly, the bent portion 20 b passes through the rectangular opening 17 a of the resin frame 17 and comes into contact with the first heat conductive sheet 16, thereby pressing the first heat conductive sheet 16 against the back surface of the front cover 11. A space having a rectangular cross section for housing the battery 101 is formed by the main body portion 20a, the bent portion 20b, the right cover 14, and the resin frame 17.

  A main circuit board 21 having a printed board 21a and a package 21b containing an electronic circuit is disposed behind the metal chassis 20, and the metal chassis 20 and the main circuit board 21 are separated from each other after assembly. Be placed. A second heat conductive sheet 25 is disposed behind the package 21b. After assembly, the second heat conductive sheet 25 is disposed in contact with the entire surface of the package 21b. Further, an LCD chassis 26 is disposed behind the second heat conductive sheet 25, and after assembly, the entire surface of the second heat conductive sheet 25 is disposed in contact with the LCD chassis 26.

  FIG. 5 shows the arrangement of components behind the LCD chassis 26 shown in FIG. 4. From the front to the rear of the digital camera 10, the LCD chassis 26, the LCD 27, the LCD cushion frame 28, and the LCD protection panel 30. And the back cover 12 is arrange | positioned in order. The LCD 27 has an FPC wiring board 27a on the right side thereof, and an FPC chassis 29 for holding an FPC wiring board 29a for a rear operation member is disposed on the right side of the LCD cushion frame 28, and on the right side of the LCD protection panel 30, A rear operation member substrate 31 on which a plurality of operation members are mounted is disposed. Note that the multi-selector 122, which is one of the rear operation members, is disposed in the FPC chassis 29 in the present embodiment. The rear cover 12 is provided with an opening 12a for the display screen of the LCD 27 and an opening 12b for the rear operation member.

  The LCD chassis 26 extends over substantially the entire rear surface and left and right side surfaces of the digital camera 10, and has a horizontal cross section (cross-sectional cut surface) having a “U” shape. The LCD chassis 26 includes a mounting portion 261 on which the LCD 27 is mounted, and an extending portion 262 extending rightward from the mounting portion 261, and a vertically long slot 26 a is formed at the right end of the extending portion 262. Yes. The bent front end portion 270a of the FPC wiring board 27a for the LCD 27 and the front end portion of the FPC wiring board 29a for the rear operation member are connected to a connector (not shown) of the main circuit board 21 through the elongated hole 26a. Is done. The long hole 26a only needs to have a size necessary and sufficient to allow the front end portion 270a of the FPC wiring board 27a and the front end portion of the FPC wiring board 29a to pass therethrough, so that the extension portion 262 has a large area. Can do. This has the advantage that the size of the package 21b can be increased and the area of the second heat conductive sheet 25 can be increased.

The LCD cushion frame 28 is a frame (for example, made of rubber or sponge) having elasticity, and is surely brought into contact with the LCD chassis 26 even when the thickness of the LCD 27 has an error.
The LCD protection panel 30 is made of, for example, a transparent acrylic resin, and prevents scratches and dirt on the liquid crystal display screen. The LCD protection panel 30 is set in close contact with the opening 12b of the rear cover 12 by a set. Further, various operation members disposed on the multi-selector 122 and the back operation member substrate 31 protrude to the outside through the opening 12b of the rear cover 12 and the like by a set. Finally, the LCD chassis 26 is attached to the rear cover 12 by welding, bonding, snap fitting, screw fastening, and the like to complete the assembly.

  The assembled product from the LCD chassis 26 to the rear cover 12 is assembled together with the components arranged in front of the front cover 11 to the second heat conductive sheet 25 to complete the digital camera 10. After assembly, the entire surface of the second heat conductive sheet 25 is disposed in contact with the LCD chassis 26, and the front end portion 270a of the FPC wiring board 27a for the LCD 27 and the front end portion of the FPC wiring board 29a for the rear operation member are elongated holes. 26a is connected to a connector (not shown) of the main circuit board 21.

  6A is a front view as seen from the front of the camera (subject side) with the LCD chassis 26 set on the back cover 12, FIG. 6B is a top view, and FIG. 6C is a bottom view. It is. As described above, the LCD chassis 26 extends over substantially the entire area of the rear surface and the left and right side surfaces of the camera, and the long hole 26a has a shape extending vertically at the left end of the LCD chassis 26 as viewed from the front of the camera. . The front end of the back operation member FPC wiring board 29a passes through the upper part of the long hole 26a, and the front end part 270a of the FPC wiring board 27a for the LCD 27 passes through the lower part of the long hole 26a. In the top view of FIG. 6B, the front end portion of the FPC wiring board 29a for the back operation member is shown, and in the bottom view of FIG. 6C, the front end portion 270a of the FPC wiring board 27a for the LCD 27 is shown. .

FIG. 7 is a diagram showing an internal configuration of a complete assembled product from the LCD chassis 26 to the rear cover 12. Referring to the rear view of FIG. 7A, the rear cover 12 is formed with an opening 12a for the LCD 27, and rear operation members such as a menu key 121 and a multi selector 122 are disposed.
7B, the LCD 27, the LCD cushion frame 28, and the LCD protection panel 30 are sequentially arranged between the mounting portion 261 of the LCD chassis 26 and the rear cover 12. The LCD 27 FPC wiring board 27 a, the back operation member substrate 31, and the multi-selector 122 are disposed between the extended portion 262 of the LCD chassis 26 and the rear cover 12. The front end 270a of the FPC wiring board 27a for the LCD 27 passes through the long hole 26a and extends forward (downward in the drawing).

In the digital camera 10 configured as described above, a heat dissipation process by heat conduction of the built-in components will be described below.
There are mainly two heat sources of the digital camera 10, the main circuit board 21 and the battery 101. Digital cameras are required to achieve both high image quality and compactness, and particularly during shooting, the power consumption of the main circuit board 21 increases because of setting of shooting conditions, image processing, image storage, and the like. The amount of heat generated from the main circuit board 21 increases and the temperature rises. If the components are packed tightly in the camera casing in order to achieve compactness, the temperature in the casing is likely to rise further. Further, as the power consumption of the main circuit board 21 increases, the temperature of the battery 101 also increases.

-Heat dissipation process to the front of the camera via the first heat conductive sheet 16-
As shown in FIG. 3, the first heat conductive sheet 16 is in contact with the front end portion 20 c of the metal chassis 20 and is in contact with the back surface of the front cover 11. The heat generated in the main circuit board 21 is transmitted to the main body 20a of the metal chassis 20 by radiation and convection. Since the metal chassis 20 is made of a material having high thermal conductivity, the heat received by the main body 20a is transmitted to the tip of the bent portion 20b, that is, the tip 20c in a short time. The heat of the front end portion 20c is transmitted to the back surface of the front cover 11 through the first heat conductive sheet 16, and is released from the outer surface of the front cover 11 into the atmosphere. Since the parts are in contact with each other from the metal chassis 20 to the front cover 11, heat transfer is efficiently generated by heat conduction.

  On the other hand, the heat generated in the battery 101 is transmitted to the main body portion 20a and the bent portion 20b of the metal chassis 20, and is transferred to the bent portion 20c having the lowest temperature in the metal chassis 20. As described above, the heat of the tip 20c is transmitted to the back surface of the front cover 11 via the first heat conductive sheet 16, and is released from the outer surface of the front cover 11 into the atmosphere.

  As described above, the heat of the main circuit board 21 and the heat of the battery 101 are also transferred by heat conduction from the metal chassis 20 to the front cover 11 via the first heat conductive sheet 16 and released from the outer surface of the front cover 11 to the outside. The Thereby, the temperature rise inside the camera housing 10A can be prevented.

-Heat dissipation process to the rear of the camera via the second thermal conductive sheet 25-
As shown in FIG. 3, the second heat conductive sheet 25 is disposed on both sides thereof in contact with the main circuit board 21 and the LCD chassis 26. The heat generated in the main circuit board 21 is transmitted to the front of the camera by radiation and convection, and is also transmitted to the rear of the camera by heat conduction. That is, the heat of the main circuit board 21 is transmitted to the LCD chassis 26 through the second heat conductive sheet 25 that is in contact with the package 21b. Since the LCD chassis 26 is made of a material having a high thermal conductivity, the heat received through the second thermal conductive sheet 25 spreads over the entire LCD chassis 26 in a short time. The heat of the LCD chassis 26 is transmitted to the inner surface of the rear cover 12 mainly by radiation and convection, and is released from the outer surface of the rear cover 12 to the atmosphere.

Since components from the main circuit board 21 to the LCD chassis 26 are in contact with each other, heat transfer is efficiently generated by heat conduction. Furthermore, since the LCD chassis 26 has a large area that almost covers the rear surface of the camera, a large amount of heat is transmitted by radiation and convection.
Thus, the heat of the main circuit board 21 is transferred to the LCD chassis 26 through the second heat conductive sheet 25 by heat conduction, and the heat transferred to the LCD chassis 26 is transferred to the rear cover 12 by radiation and convection, It is discharged from the outer surface of the cover 12 to the outside. Thereby, the temperature rise inside the camera housing 10A can be prevented.

The digital camera 10 of the present embodiment has the following operational effects.
(1) In the heat radiation process to the front of the camera, the heat received by the main body 20a of the metal chassis 20 is transmitted to the tip 20c, and the heat of the tip 20c is transferred to the back surface of the front cover 11 via the first heat conductive sheet 16. It is transmitted and discharged from the outer surface of the front cover 11 into the atmosphere. Since the parts are in contact with each other from the metal chassis 20 to the front cover 11, it is possible to reduce the size and transmit heat quickly and efficiently by heat conduction.
(2) In the heat dissipation process to the front of the camera, the metal chassis 20 is made of a material having high thermal conductivity, so that the heat received by the main body 20a can be transmitted to the tip 20c in a short time.
(3) In the heat dissipation process to the rear of the camera, the heat of the main circuit board 21 is transmitted to the LCD chassis 26 via the second heat conductive sheet 25 in contact with the package 21b, and the heat of the LCD chassis 26 is transferred to the rear cover 12. It is transmitted to the inner surface and emitted from the outer surface of the back cover 12 to the atmosphere. Since components from the main circuit board 21 to the LCD chassis 26 are in contact with each other, it is possible to reduce the size and efficiently transfer heat by heat conduction.
(4) In the heat dissipation process to the rear of the camera, the LCD chassis 26 is made of a material having a high thermal conductivity and has a large area so as to cover the entire rear surface of the camera. It can be transmitted to the cover 12. In particular, since the extending portion 262 of the LCD chassis 26 can take a large area, it can cope with an increase in the area of the second heat conductive sheet 25.
(5) Since the entire surface of the package 21b is in contact with the second heat conductive sheet 25 and the entire surface of the second heat conductive sheet 25 is in contact with the LCD chassis 26, heat generated from the main circuit board 21 is quickly transmitted to the LCD chassis 26. be able to.

Modifications of the present embodiment are as follows.
(1) The digital camera 10 according to the present embodiment includes a first heat conductive sheet 16 and a second heat conductive sheet 25, and the heat received by the metal chassis 20 from the main circuit board 21 passes through the first heat conductive sheet 16. In addition to conducting to the front of the camera, the heat of the main circuit board 21 is transmitted to the LCD chassis 26 via the second heat conductive sheet 25, and the heat received by the LCD chassis 26 is conducted to the rear of the camera. (2) A configuration in which the heat conductive sheet 25 is omitted and heat is radiated mainly by heat transfer to the front of the camera is also included in the present invention.
(2) The digital camera 10 according to the present embodiment constitutes a battery chamber by the metal chassis 20, the right cover 14, and the resin frame 17, but is dedicated without using the right cover 14 and the resin frame 17. You may comprise a battery chamber using the member of.
That is, as shown in FIG. 8, a plate-like member 201 is used instead of the right cover 14, and an insulating plastic plate-like member 202 is used instead of the resin frame 17, so that the main body portion of the metal chassis 20. You may comprise a battery chamber by 20a, the bending part 20b, and the two plate-shaped members 201 and 202. FIG.
(3) Although the first heat conductive sheet 16 and the second heat conductive sheet 25 are both rectangular in shape, the shapes may be changed according to the mating parts to be contacted. Further, in order to increase the amount of heat transfer, it is desirable that the first heat conductive sheet 16 and the second heat conductive sheet 25 take the maximum area according to the area of the counterpart component that comes into contact.

  The present invention is not limited to the embodiment described above as long as the characteristics are not impaired.

DESCRIPTION OF SYMBOLS 10: Digital camera 10A: Camera housing 11: Front cover 12: Back cover 14: Right cover 15: Left cover 16: 1st heat conductive sheet 17: Resin frame 20: Metal chassis 20a: Main-body part 20b: Bending part 20c : Front end 21: Main circuit board 21a: Printed circuit board 21b: Package 25: Second heat conductive sheet 26: LCD chassis 26a: Long hole 27: LCD 27a: FPC wiring board for LCD 29: FPC chassis 29a: For rear operation member FPC wiring board 261: mounting portion 262: extending portion

Claims (7)

A camera housing having a front cover facing the subject and a rear cover disposed to face the front cover;
A battery chamber that is disposed within the camera housing and houses a battery;
A metal battery compartment chassis that forms part of the battery compartment;
A first heat conducting member provided in contact with the battery chamber chassis and the front cover, for conducting heat of the battery chamber chassis to the front cover;
A main circuit board disposed opposite to the battery chamber chassis behind the battery chamber chassis,
The battery chamber chassis conducts heat received from the main circuit board to the front cover through the first heat conducting member. A camera housing having a front cover facing the subject and a rear cover disposed to face the front cover;
A battery chamber that is disposed within the camera housing and houses a battery;
A metal battery compartment chassis that forms part of the battery compartment;
A first heat conducting member provided in contact with the battery chamber chassis and the front cover, for conducting heat of the battery chamber chassis to the front cover;
A main circuit board disposed behind the battery chamber chassis and facing the battery chamber chassis;
An LCD chassis provided between the main circuit board and the rear cover;
A second heat conducting member that is provided in contact with the main circuit board and the LCD chassis, and conducts heat of the main circuit board to the LCD chassis,
The battery chamber chassis conducts heat received from the main circuit board to the front cover through the first heat conducting member,
The LCD chassis conducts heat received from the main circuit board to the back cover through the second heat conducting member. The electronic device according to claim 1 or 2,
The electronic device, wherein the main circuit board is disposed apart from the battery chamber chassis. In the electronic device of any one of Claims 1-3,
A resin frame disposed between the front cover and the battery chamber chassis and substantially parallel to the front cover, and having an opening;
The camera housing further includes right and left covers that connect the front cover and the rear cover,
The battery chamber chassis includes a main body portion extending substantially parallel to the front cover, a bent portion bent substantially vertically from the end of the main body portion toward the front cover, and a tip of the bent portion. And a tip portion that
The battery chamber has a battery storage space having a rectangular cross section,
The storage space is formed by a body portion and a bent portion of the battery chamber chassis, one of the right and left covers, and the resin frame.
The electronic device according to claim 1, wherein the front end portion penetrates the opening of the resin frame and presses the first heat conducting member against the front cover. In the electronic device of any one of Claims 1-4,
The battery device chassis conducts heat generated by the battery to the front cover through the first heat conducting member. The electronic device according to claim 2,
The main circuit board includes an IC package and a printed board on which the IC package is mounted,
2. The electronic apparatus according to claim 1, wherein the second heat conducting member is provided in contact with substantially the entire surface of the IC package. The electronic device according to claim 2,
The LCD further includes an LCD disposed between the LCD chassis and the back cover and connected with a flexible printed wiring board,
The LCD chassis is juxtaposed substantially in parallel with the rear cover, and includes a mounting portion for mounting the LCD, an extending portion extending from an end of the mounting portion, and an opening formed in the extending portion. Have
The second heat conducting member abuts on the surface of the extending portion on the front cover side,
The flexible printed wiring board is connected to the main circuit board through the opening of the extending portion.

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