US20220294953A1 - Imaging apparatus - Google Patents
Imaging apparatus Download PDFInfo
- Publication number
- US20220294953A1 US20220294953A1 US17/509,016 US202117509016A US2022294953A1 US 20220294953 A1 US20220294953 A1 US 20220294953A1 US 202117509016 A US202117509016 A US 202117509016A US 2022294953 A1 US2022294953 A1 US 2022294953A1
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- US
- United States
- Prior art keywords
- imaging apparatus
- recording medium
- radiator plate
- board
- conductive sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H04N5/22521—
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/203—Cooling means for portable computers, e.g. for laptops
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/52—Elements optimising image sensor operation, e.g. for electromagnetic interference [EMI] protection or temperature control by heat transfer or cooling elements
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/55—Details of cameras or camera bodies; Accessories therefor with provision for heating or cooling, e.g. in aircraft
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
- G06F1/1658—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories related to the mounting of internal components, e.g. disc drive or any other functional module
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/765—Interface circuits between an apparatus for recording and another apparatus
- H04N5/77—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
- H04N5/772—Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera the recording apparatus and the television camera being placed in the same enclosure
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/76—Television signal recording
- H04N5/907—Television signal recording using static stores, e.g. storage tubes or semiconductor memories
Definitions
- the present disclosure relates to an imaging apparatus.
- JA 2018-148024 A discloses an imaging apparatus including a connector into which a card-type recording medium is removably inserted.
- the connector includes a slot board (board) and a slot cover (recording medium accommodation portion) provided on the slot board and for accommodating a recording medium.
- the slot board is fixed to the heat transfer means with a screw. The heat generated from the recording medium is transmitted to the heat transfer means through the slot board.
- a removable card type recording medium has increased in capacity.
- the imaging apparatus can store a long-hour high-resolution captured moving image in a recording medium.
- the card-type recording medium keeps generating heat due to continuous writing. Therefore, the imaging apparatus is required to have high heat dissipation performance for the recording medium.
- an imaging apparatus capable of photographing with high resolution for long hours is required to have high maintainability (that is, ease of disassembly and assembly) from a professional photographer or the like.
- the present disclosure has an object to achieve high maintainability while securing high heat dissipation performance for a recording medium in an imaging apparatus that stores a captured moving image or the like in a removable recording medium.
- an imaging apparatus including:
- a recording medium accommodation portion provided on the board and configured to removably accommodate a recording medium
- radiator plate provided at a position away from the recording medium accommodation portion
- thermal conductive sheet including a first portion fixed to the radiator plate and a second portion in contact with the recording medium accommodation portion;
- a cushion member configured to urge a second portion of the thermal conductive sheet toward the recording medium accommodation portion and to maintain contact between a second portion of the thermal conductive sheet and the recording medium accommodation portion;
- a cushion member support member configured to support the cushion member
- FIG. 1 is a front perspective view of an imaging apparatus according to one embodiment of the present disclosure
- FIG. 2 is a rear perspective view of the imaging apparatus in a state where a tilt base is positioned at a retracted position;
- FIG. 3 is a rear perspective view of the imaging apparatus in a state where the tilt base is inclined;
- FIG. 4 is a rear perspective view of the imaging apparatus in a disassembled state for maintenance
- FIG. 5 is a rear perspective view of the imaging apparatus in a state where an intake port cover is removed;
- FIG. 6 is a side perspective view of the imaging apparatus in a state where a side casing is removed;
- FIG. 7 is a front perspective view of the imaging apparatus in a state of being disassembled into a front unit and a rear unit;
- FIG. 8A is a front perspective view of the imaging apparatus showing heat transfer elements that thermally connect the front unit and the rear unit;
- FIG. 8B is a rear perspective view of the imaging apparatus showing heat transfer elements that thermally connect the front unit and the rear unit;
- FIG. 9A is a rear perspective view of the rear unit from which a radiator plate has been removed.
- FIG. 9B is a side perspective view of the rear unit from which a radiator plate has been removed.
- FIG. 1 is a front perspective view of an imaging apparatus according to an embodiment of the present disclosure.
- FIG. 2 is a rear perspective view of the imaging apparatus in a state where the tilt base is positioned at the retracted position.
- FIG. 3 is a rear perspective view of the imaging apparatus in a state where the tilt base is inclined.
- the X-Y-Z orthogonal coordinate system shown in the drawings is for facilitating understanding of the present disclosure, and does not limit the present disclosure.
- the X-axis direction indicates the front-rear direction of the imaging apparatus
- the Y-axis direction indicates the left-right direction of the imaging apparatus
- the Z-axis direction indicates the height direction.
- a side on which the subject is present with respect to the imaging apparatus is referred to as a “front side”
- a side on which the imaging apparatus is present with respect to the subject is referred to as a “rear side”.
- the casing of the imaging apparatus 10 includes a front casing 12 positioned on the front side, a top casing 13 positioned on the upper side, a rear casing 14 positioned on the rear side, and a side casing 16 positioned on the left side.
- the front casing 12 is provided with a lens attachment portion. It should be noted that in the figure, the lens attachment portion is hidden by the lens cap 18 .
- the front casing 12 is provided with a hand grip portion 12 a to be gripped by the user's right hand. Furthermore, the front casing 12 is provided with a plurality of man-machine interfaces.
- the top casing 13 is provided with a plurality of man-machine interfaces such as a shutter button 20 .
- the rear casing 14 is provided with a view finder 22 .
- the rear casing 14 is provided with a plurality of man-machine interfaces such as a dial 24 . It should be noted that some man-machine interfaces such as the dial 24 are arranged in the right side portion of the outer side surface of the rear casing 14 (that is, the rear surface of the imaging apparatus 10 ) so as to be operable by the thumb of the right hand of the user who grips the hand grip portion 12 a.
- a monitor 26 is mounted in the left side portion on the outer side surface of the rear casing 14 .
- the monitor 26 is attached to the rectangular plate-shaped tilt base 28 via a hinge 30 .
- a raised portion 14 b having a flat top surface 14 a is formed on an outer side surface of the rear casing 14 .
- the tilt base 28 is provided so as to be tiltable with respect to the top surface 14 a of the raised portion 14 b .
- the tilt base 28 rotates about a rotation center line extending in the left-right direction (Y-axis direction) of the imaging apparatus 10 .
- FIG. 2 shows a state where the tilt base 28 is closest to the top surface 14 a of the raised portion 14 b , that is, the tilt base 28 positioned at the retracted position.
- the monitor 26 is, for example, a liquid crystal monitor including a display surface 26 a .
- the monitor 26 displays an image (through image) indicated by image data obtained by capturing by the image sensor and performing image processing by the image processing unit.
- the monitor 26 is provided on the tilt base 28 to be movable between a position overlapping with the tilt base 28 and a position away from the tilt base 28 .
- the monitor 26 is supported by the hinge 30 to be rotatable about a rotation center line C 1 extending in the left-right direction (Y-axis direction) of the imaging apparatus 10 .
- the hinge 30 is supported by the tilt base 28 to be rotatable about a rotation center line C 2 parallel to the tilt base 28 while being orthogonal to the rotation center line C 1 .
- the monitor 26 is retracted in a state where the display surface 26 a overlaps the tilt base 28 as shown in FIG. 2 .
- the monitor 26 can take an attitude in which the monitor 26 is away from the tilt base 28 and the display surface 26 a faces the rear side of the imaging apparatus 10 .
- an arc-shaped recessed portion 28 a is formed at a right end of the tilt base 28 .
- This recessed portion 28 a exposes a part of the display surface 26 a of the monitor 26 overlapping the tilt base 28 .
- the user's finger is likely to be caught on the exposed portion, that is, the free end of the monitor 26 (that is, the distal end farther from the hinge 30 in the left-right direction (Y-axis direction)), and as a result, the user can easily rotate the monitor 26 (as compared with the case where there is no recessed portion 28 a ).
- the recessed portion 28 a of the tilt base 28 prevents the thumb of the right hand of the user who rotates the dial 24 from coming into contact with the tilt base 28 . Accordingly, the user can smoothly rotate the dial 24 without feeling stress.
- the presence of the recessed portion 28 a enables the dial 24 to be arranged near the tilt base 28 , and as a result, the size in the left-right direction (Y-axis direction) of the imaging apparatus 10 can be reduced.
- the rear casing 14 is provided with an intake port and an exhaust port.
- FIG. 4 is a rear perspective view of the imaging apparatus in a disassembled state for maintenance.
- FIG. 5 is a rear perspective view of the imaging apparatus in a state where the intake port cover is removed.
- FIG. 6 is a side perspective view of the imaging apparatus in a state where the side casing is removed. It should be noted that FIG. 4 shows the front casing 12 in a state where the top casing 13 is attached.
- the rear casing 14 is provided with an intake port 14 c for taking in the outside air into the imaging apparatus 10 .
- the intake port 14 c is formed from the top surface 14 a of the raised portion 14 b of the rear casing 14 to the side surface 14 d of the raised portion 14 b on the dial 24 side.
- an intake port cover 32 is attached to the intake port 14 c .
- the intake port cover 32 is fixed to the rear casing 14 with one screw 34 to facilitate cleaning of the inside of the imaging apparatus 10 near the intake port 14 c .
- the screw 34 is attached to the rear casing 14 in the front-rear direction (X-axis direction) of the imaging apparatus 10 .
- the screw 34 is provided at a position covered by the tilt base 28 in the retracted state as shown in FIG. 2 , and is provided at a position where a tool that rotates the screw 34 can access the screw 34 in the front-rear direction (X-axis direction) when the tilt base 28 is inclined as shown in FIG. 5 .
- the recessed portion 28 a of the tilt base 28 is positioned on the intake port cover 32 .
- the right side end portion of the tilt base 28 covers a part of the intake port cover 32 (that is, intake port 14 c ).
- the intake efficiency of the intake port 14 c decreases as compared with the case where the tilt base 28 is inclined away from the top surface 14 a of the raised portion 14 b as shown in FIG. 3 .
- the recessed portion 28 a of the tilt base 28 in the retracted state is positioned on the intake port cover 32 .
- the rear casing 14 is provided with an exhaust port 14 e for exhausting the outside air taken into the imaging apparatus 10 through the intake port 12 c .
- an exhaust port 14 e is formed in a left side portion of the rear casing 14 .
- the side casing 16 is attached to the front casing 12 and the rear casing 14 with three screws 36 . It should be noted that the side casing 16 is provided with a door-shaped cover 40 for protecting the earphone jack 38 , and a door-shaped cover 46 for protecting the USB terminal connector 42 and the HDMI (registered trademark) connector 44 .
- the imaging apparatus 10 is configured to be disassembled into a front unit 50 and a rear unit 52 in consideration of maintenance.
- the imaging apparatus 10 is disassembled into the front unit 50 and the rear unit 52 by removing a plurality of screws (not shown).
- FIG. 7 is a front perspective view of the imaging apparatus in a state of being disassembled into a front unit and a rear unit. It should be noted that FIG. 7 shows the front casing 12 in a state where the top casing 13 is attached.
- the front unit 50 is configured by incorporating a plurality of components in the front casing 12
- the rear unit 52 is configured by incorporating a plurality of components in the rear casing 14 .
- a flexible cable and the like that electrically connect the front unit 50 and the rear unit 52 are omitted.
- a board 54 is provided inside the front unit 50 .
- the board 54 is provided over the entire front casing 12 in the left-right direction (Y-axis direction) of the imaging apparatus 10 .
- the rear surface of the board 54 (the surface on the rear side of the imaging apparatus 10 ) is mounted with a memory 56 such as a DRAM, an IC chip 58 for performing image processing, and the like.
- the memory 56 and the IC chip 58 are provided in the left side portion of the board 54 .
- the rear surface of the board 54 is provided with a card connector 60 into which the recording medium M is removably inserted.
- the recording medium M is a card-type recording medium (what is called a memory card), and is, for example, a CFexpress card.
- the card connector 60 roughly includes a part of the board 54 provided with a terminal (not shown) electrically connected to a terminal of the recording medium M, and a connector frame (recording medium accommodation portion) 62 that covers the part of the board 54 , in a state of leaving a space for the recording medium M to enter, and maintains contact between the terminal on the board 54 and the terminal of the recording medium M.
- the connector frame 62 is formed by machining a metal thin plate such as stainless steel.
- the card connector 60 is provided in the right side portion of the board 54 away from the memory 56 and the IC chip 58 . It should be noted that the recording medium M can access the card connector 60 by opening the connector cover 64 provided in the right side portion of the imaging apparatus 10 .
- a radiator plate 66 is provided inside the rear unit 52 .
- the radiator plate 66 is a plate-shaped member made of a metal material such as copper having high thermal conductivity.
- the radiator plate 66 cools the recording medium M inserted in the card connector 60 by absorbing heat from the connector frame 62 of the card connector 60 .
- the radiator plate 66 cools the memory 56 and the IC chip 58 (heat source) by absorbing heat from these components.
- the radiator plate 66 is not provided over the entire rear casing 14 in the left-right direction (Y-axis direction) of the imaging apparatus 10 , but is provided from the central portion to the left side portion of the rear casing 14 .
- the imaging apparatus 10 includes a heat transfer element that thermally connects the memory 56 , the IC chip 58 , and the card connector 60 provided in the front unit 50 to the radiator plate 66 provided in the rear unit 52 .
- FIGS. 8A and 8B are perspective views of the imaging apparatus showing heat transfer elements that thermally connect the front unit and the rear unit.
- FIG. 8A is a front perspective view
- FIG. 8B is a rear perspective view. It should be noted that FIGS. 8A and 8B show the front casing 12 in a state of the top casing 13 attached.
- the radiator plate 66 faces the memory 56 and the IC chip 58 in the thickness direction of the board 54 , that is, in the front-rear direction (X-axis direction) of the imaging apparatus 10 . Therefore, in order to thermally connect the memory 56 and the IC chip 58 to the radiator plate 66 , the silicon adhesive sheets 68 and 70 having high thermal conductivity and flexibility are arranged therebetween. The silicon adhesive sheets 68 and 70 are in surface contact with the memory 56 and the IC chip 58 , and are in surface contact with the front surface 66 a of the radiator plate 66 (surface on the front side of the imaging apparatus 10 ).
- the silicon adhesive sheet 72 is also arranged between a portion of the board 54 near the memory 56 and the IC chip 58 and the radiator plate 66 .
- the silicon adhesive sheet 72 is in surface contact with the board 54 and is in surface contact with the radiator plate 66 . Heat of the memory 56 , the IC chip 58 , and the board 54 is transferred to the radiator plate 66 through the silicon adhesive sheets 68 , 70 , and 72 .
- the silicon adhesive sheets 68 , 70 , and 72 have self-adhesiveness that can be repeatedly attached. Therefore, when the imaging apparatus 10 is disassembled into the front unit 50 and the rear unit 52 for maintenance, the silicon adhesive sheets 68 , 70 , and 72 remain on the memory 56 , the IC chip 58 , and the board 54 (or, remain on the radiator plate 66 ) as shown in FIG. 4 . Then, when the maintenance is completed and the front unit 50 and the rear unit 52 are united again, the silicon adhesive sheets 68 , 70 , and 72 thermally connect the memory 56 , the IC chip 58 , and the board 54 to the radiator plate 66 again.
- the imaging apparatus 10 has high maintainability (ease of disassembly and assembly) while securing high heat dissipation with respect to the memory 56 , the IC chip 58 , and the board 54 . That is, thermal connection between the memory 56 , the IC chip 58 , and the board 54 and the radiator plate 66 is released by only disassembling into the front unit 50 and the rear unit 52 . In addition, thermal connection between the memory 56 , the IC chip 58 , and the board 54 and the radiator plate 66 is established by only uniting the front unit 50 and the rear unit 52 . As a result, the user does not need to perform any work on the thermal connection between the memory 56 , the IC chip 58 , and the board 54 and the radiator plate 66 .
- the radiator plate 66 does not face the connector frame 62 of the card connector 60 in the thickness direction of the board 54 , that is, the front-rear direction (X-axis direction) of the imaging apparatus 10 .
- the radiator plate 66 is provided at a position away to the left side with respect to the connector frame 62 of the card connector 60 .
- the imaging apparatus 10 includes a thermal conductive sheet 74 .
- the thermal conductive sheet 74 is a flexible sheet having high thermal conductivity, and is a thin strip-shaped sheet extending in the left-right direction (Y-axis direction) of imaging apparatus 10 in the case of the present embodiment.
- the thermal conductive sheet 74 is a graphite sheet. The graphite sheet is obtained by processing graphite having high thermal conductivity into a thin sheet shape.
- one end (first portion) 74 a of the thermal conductive sheet 74 is attached and fixed to the right end of the radiator plate 66 included in the rear unit 52 via an adhesive sheet 76 .
- the thermal conductive sheet 74 is included in the rear unit 52 .
- the thermal conductive sheet 74 is not fixed to the connector frame 62 of the card connector 60 included in the front unit 50 .
- the thermal conductive sheet 74 is simply brought into surface contact with the top plate portion 62 a of the connector frame 62 via the other end (second portion) 74 b thereof.
- the imaging apparatus 10 includes a cushion member 78 that urges the other end 74 b of the thermal conductive sheet 74 toward the top plate portion 62 a of the connector frame 62 .
- the cushion member 78 is made of an elastic material such as urethane foam, and has lower rigidity than the connector frame 62 .
- the cushion member 78 is attached to the second portion 74 b of the thermal conductive sheet 74 via the adhesive sheet 80 .
- the cushion member 78 is provided in the rear casing 14 , and is supported by a base plate (cushion member support member) 82 to which a man-machine interface such as the dial 24 provided in the rear casing 14 is attached.
- the second portion 74 b of the thermal conductive sheet 74 is sandwiched between the top plate portion 62 a of the connector frame 62 and the cushion member 78 .
- the cushion member 78 is compressed and deformed between the connector frame 62 and the base plate 82 .
- the cushion member 78 urges the second portion 74 b of the thermal conductive sheet 74 toward the connector frame 62 with an urging force that does not deform the connector frame 62 .
- the contact between the thermal conductive sheet 74 and the connector frame 62 is maintained.
- the connector frame 62 is thermally connected to the radiator plate 66 via the thermal conductive sheet 74 .
- the imaging apparatus 10 When the imaging apparatus 10 is disassembled into the front unit 50 and the rear unit 52 for maintenance, the second portion 74 b of the thermal conductive sheet 74 is separated from the top plate portion 62 a of the connector frame 62 .
- the second portion 74 b of the thermal conductive sheet 74 is brought into surface contact with the top plate portion 62 a of the connector frame 62 again. Therefore, the imaging apparatus 10 has high maintainability (ease of disassembly and assembly) while securing high heat dissipation from the connector frame 62 , specifically, from the recording medium M inserted into the connector frame 62 .
- thermal connection between the connector frame 62 and the radiator plate 66 is released by only disassembling into the front unit 50 and the rear unit 52 .
- thermal connection between the connector frame 62 and the radiator plate 66 is established by only uniting the front unit 50 and the rear unit 52 .
- the thermal conductive sheet 74 is not broken when the rear unit 52 is removed, the thermal conductive sheet 74 can be reused.
- the cushion member 78 is attached to the second portion 74 b of the thermal conductive sheet 74 via the adhesive sheet 80 .
- the cushion member 78 may be attached to the base plate 82 without being attached to the thermal conductive sheet 74 .
- another member that supports the cushion member 78 may be provided in the rear unit 52 .
- the radiator plate 66 is cooled by outside air.
- FIGS. 9A and 9B show the rear unit with the radiator plate removed.
- FIG. 9A is a front perspective view
- FIG. 9B is a rear perspective view. It should be noted that in FIGS. 9A and 9B , the monitor 26 , the tilt base 28 , and the hinge 30 are omitted.
- the intake port 14 c is provided in the rear casing 14 of the rear unit 52 .
- the outside air having passed through the intake port 14 c flows into between the radiator plate 66 and the rear casing 14 .
- a fan 84 is attached to the rear surface 66 b of the radiator plate 66 facing the rear casing 14 . That is, the fan 84 is included in the rear unit 52 .
- the fan 84 is a sirocco fan. Specifically, the fan 84 sucks outside air in the extending direction (X-axis direction) of the rotation center line R of the fan via the suction port 84 a . The fan 84 blows out the sucked outside air in a direction orthogonal to the extending direction of the rotation center line R (Y-axis direction) via the blowout port 84 b . It should be noted that the fan 84 is provided in the rear unit 52 so that the extending direction of the rotation center line R is parallel to the front-rear direction of the imaging apparatus 10 .
- the heat sink 86 is arranged in front of the blowout port 84 b of the fan 84 .
- the heat sink 86 is attached to and thermally connected to the rear surface 66 b of the radiator plate 66 .
- the heat sink 86 includes a plurality of fins 86 a each extending in the left-right direction (Y-axis direction) of the imaging apparatus 10 and being side by side in the height direction (Z-axis direction) at intervals.
- the outside air in a high-temperature state by taking heat is discharged to the outside of the imaging apparatus 10 through the exhaust port 14 e (exhaust port cover portion 16 a ) of the rear casing 14 .
- the radiator plate is cooled by the flow of the outside air, and as a result, the connector frame 62 of the card connector 60 , the memory 56 , the IC chip 58 , and the board 54 which are thermally connected to the radiator plate 66 are cooled.
- the present embodiment in an imaging apparatus that stores a captured moving image or the like in a removable recording medium, it is possible to achieve high maintainability while securing high heat dissipation performance for the recording medium. That is, even if the connector of the recording medium and the radiator plate are included in separate units when the imaging apparatus is disassembled into a plurality of units for maintenance, thermal connection between the connector frame of the connector and the radiator plate can be easily released in a restorable manner.
- the thermal conductive sheet 74 that thermally connects the connector frame 62 of the card connector 60 and the radiator plate 66 is a graphite sheet, but the embodiment of the present disclosure is not limited thereto.
- the thermal conductive sheet 74 may be, for example, a sheet-shaped thin copper plate.
- a graphite sheet having higher flexibility is preferable.
- the board 54 on which the card connector 60 is provided is included in the front unit 50
- the radiator plate 66 is included in the rear unit 52 .
- the embodiment of the present disclosure is not limited thereto.
- the board on which the card connector is provided may be included in the rear unit, and the radiator plate 66 may be included in the front unit.
- the radiator plate 66 faces the memory 56 , the IC chip 58 , and the board 54 in the thickness direction of the board 54 in order to absorb heat from these components. Then, the connector frame 62 of the card connector 60 provided away from the radiator plate 66 is thermally connected to the radiator plate 66 via the thermal conductive sheet 74 .
- the embodiment of the present disclosure is not limited thereto.
- a radiator plate dedicated to the connector frame of the card connector may be separately provided.
- the radiator plate 66 is forcibly cooled by the fan 84 via the heat sink 86 .
- the embodiment of the present disclosure is not limited thereto.
- the radiator plate may be cooled without a fan as long as the recording medium M can be sufficiently cooled.
- the recording medium M removable from the imaging apparatus 10 is a card-type recording medium, that is, a CFexpress card being an example of a memory card.
- the recording medium has only to be a recording medium removably accommodated in a recording medium accommodation portion provided on the board.
- the recording medium may be a memory card such as an SD card or a microSD card.
- an imaging apparatus includes: a board; a recording medium accommodation portion provided on the board and configured to removably accommodate a recording medium; a radiator plate provided at a position away from the recording medium accommodation portion; a thermal conductive sheet including a first portion fixed to the radiator plate and a second portion in contact with the recording medium accommodation portion; a cushion member configured to urge a second portion of the thermal conductive sheet toward the recording medium accommodation portion and to maintain contact between a second portion of the thermal conductive sheet and the recording medium accommodation portion; and a cushion member support member configured to support the cushion member.
- the imaging apparatus may be an imaging apparatus including: an intake port provided on a rear surface of a casing; a tilt base tiltable with respect to the rear surface and including an end portion that covers at least a portion of the intake port in a state of being closest to the rear surface; and a monitor provided on the tilt base so as to be movable between a first position overlapping with the tilt base and a second position away from the tilt base.
- the end portion of the tilt base includes a recessed portion that exposes a portion of a surface of the monitor facing the tilt base when the monitor is positioned at the first position.
- the recessed portion is positioned on the intake port in a state where the tilt base is closest to the rear surface.
- the present disclosure is applicable to an imaging apparatus that cools a removable recording medium.
Abstract
An imaging apparatus includes: a board; a recording medium accommodation portion provided on the board and configured to removably accommodate a recording medium; a radiator plate provided at a position away from the recording medium accommodation portion; a thermal conductive sheet including a first portion fixed to the radiator plate and a second portion in contact with the recording medium accommodation portion; a cushion member configured to urge a second portion of the thermal conductive sheet toward the recording medium accommodation portion and to maintain contact between a second portion of the thermal conductive sheet and the recording medium accommodation portion; and a cushion member support member configured to support the cushion member.
Description
- The present disclosure relates to an imaging apparatus.
- For example, JA 2018-148024 A discloses an imaging apparatus including a connector into which a card-type recording medium is removably inserted. The connector includes a slot board (board) and a slot cover (recording medium accommodation portion) provided on the slot board and for accommodating a recording medium. The slot board is fixed to the heat transfer means with a screw. The heat generated from the recording medium is transmitted to the heat transfer means through the slot board.
- Incidentally, in recent years, a removable card type recording medium has increased in capacity. As a result, the imaging apparatus can store a long-hour high-resolution captured moving image in a recording medium. However, as a result, the card-type recording medium keeps generating heat due to continuous writing. Therefore, the imaging apparatus is required to have high heat dissipation performance for the recording medium.
- In addition, in order to maintain stable photographing capacity for a long period of time, an imaging apparatus capable of photographing with high resolution for long hours is required to have high maintainability (that is, ease of disassembly and assembly) from a professional photographer or the like.
- Therefore, the present disclosure has an object to achieve high maintainability while securing high heat dissipation performance for a recording medium in an imaging apparatus that stores a captured moving image or the like in a removable recording medium.
- In order to solve the above problem, according to one aspect of the present disclosure, provided is an imaging apparatus including:
- a board;
- a recording medium accommodation portion provided on the board and configured to removably accommodate a recording medium;
- a radiator plate provided at a position away from the recording medium accommodation portion;
- a thermal conductive sheet including a first portion fixed to the radiator plate and a second portion in contact with the recording medium accommodation portion;
- a cushion member configured to urge a second portion of the thermal conductive sheet toward the recording medium accommodation portion and to maintain contact between a second portion of the thermal conductive sheet and the recording medium accommodation portion; and
- a cushion member support member configured to support the cushion member.
- According to the present disclosure, it is possible to achieve high maintainability while securing high heat dissipation performance for a recording medium in an imaging apparatus that stores a captured moving image or the like in a removable recording medium.
-
FIG. 1 is a front perspective view of an imaging apparatus according to one embodiment of the present disclosure; -
FIG. 2 is a rear perspective view of the imaging apparatus in a state where a tilt base is positioned at a retracted position; -
FIG. 3 is a rear perspective view of the imaging apparatus in a state where the tilt base is inclined; -
FIG. 4 is a rear perspective view of the imaging apparatus in a disassembled state for maintenance; -
FIG. 5 is a rear perspective view of the imaging apparatus in a state where an intake port cover is removed; -
FIG. 6 is a side perspective view of the imaging apparatus in a state where a side casing is removed; -
FIG. 7 is a front perspective view of the imaging apparatus in a state of being disassembled into a front unit and a rear unit; -
FIG. 8A is a front perspective view of the imaging apparatus showing heat transfer elements that thermally connect the front unit and the rear unit; -
FIG. 8B is a rear perspective view of the imaging apparatus showing heat transfer elements that thermally connect the front unit and the rear unit; -
FIG. 9A is a rear perspective view of the rear unit from which a radiator plate has been removed; and -
FIG. 9B is a side perspective view of the rear unit from which a radiator plate has been removed. - Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, a detailed description more than necessary may be omitted. For example, a detailed description of already well-known matters and an overlapping description for substantially the same configuration may be omitted. This is to avoid the unnecessary redundancy of the following description and to facilitate understanding by those skilled in the art.
- It should be noted that the inventor(s) provides (provide) the accompanying drawings and the following description for a person skilled in the art to fully understand the present disclosure. Thus, the drawings and the description are not intended to limit the subject matter defined in the claims.
- Hereinafter, an imaging apparatus according to an embodiment of the present disclosure will be described with reference to the drawings.
-
FIG. 1 is a front perspective view of an imaging apparatus according to an embodiment of the present disclosure. In addition,FIG. 2 is a rear perspective view of the imaging apparatus in a state where the tilt base is positioned at the retracted position. Then,FIG. 3 is a rear perspective view of the imaging apparatus in a state where the tilt base is inclined. - It should be noted that the X-Y-Z orthogonal coordinate system shown in the drawings is for facilitating understanding of the present disclosure, and does not limit the present disclosure. The X-axis direction indicates the front-rear direction of the imaging apparatus, the Y-axis direction indicates the left-right direction of the imaging apparatus, and the Z-axis direction indicates the height direction. In addition, in the present specification, a side on which the subject is present with respect to the imaging apparatus is referred to as a “front side”, and a side on which the imaging apparatus is present with respect to the subject is referred to as a “rear side”.
- As shown in
FIGS. 1 to 3 , in the case of the present embodiment, the casing of theimaging apparatus 10 includes afront casing 12 positioned on the front side, atop casing 13 positioned on the upper side, arear casing 14 positioned on the rear side, and aside casing 16 positioned on the left side. - As shown in
FIG. 1 , thefront casing 12 is provided with a lens attachment portion. It should be noted that in the figure, the lens attachment portion is hidden by thelens cap 18. In addition, thefront casing 12 is provided with ahand grip portion 12 a to be gripped by the user's right hand. Furthermore, thefront casing 12 is provided with a plurality of man-machine interfaces. - The
top casing 13 is provided with a plurality of man-machine interfaces such as ashutter button 20. - As shown in
FIGS. 2 and 3 , therear casing 14 is provided with aview finder 22. In addition, therear casing 14 is provided with a plurality of man-machine interfaces such as adial 24. It should be noted that some man-machine interfaces such as thedial 24 are arranged in the right side portion of the outer side surface of the rear casing 14 (that is, the rear surface of the imaging apparatus 10) so as to be operable by the thumb of the right hand of the user who grips thehand grip portion 12 a. - Furthermore, as shown in
FIGS. 2 and 3 , in the case of the present embodiment, amonitor 26 is mounted in the left side portion on the outer side surface of therear casing 14. Specifically, themonitor 26 is attached to the rectangular plate-shaped tilt base 28 via ahinge 30. A raisedportion 14 b having a flattop surface 14 a is formed on an outer side surface of therear casing 14. Thetilt base 28 is provided so as to be tiltable with respect to thetop surface 14 a of the raisedportion 14 b. Specifically, thetilt base 28 rotates about a rotation center line extending in the left-right direction (Y-axis direction) of theimaging apparatus 10. It should be noted thatFIG. 2 shows a state where thetilt base 28 is closest to thetop surface 14 a of the raisedportion 14 b, that is, thetilt base 28 positioned at the retracted position. - The
monitor 26 is, for example, a liquid crystal monitor including adisplay surface 26 a. For example, themonitor 26 displays an image (through image) indicated by image data obtained by capturing by the image sensor and performing image processing by the image processing unit. Themonitor 26 is provided on thetilt base 28 to be movable between a position overlapping with thetilt base 28 and a position away from thetilt base 28. Specifically, themonitor 26 is supported by thehinge 30 to be rotatable about a rotation center line C1 extending in the left-right direction (Y-axis direction) of theimaging apparatus 10. Thehinge 30 is supported by thetilt base 28 to be rotatable about a rotation center line C2 parallel to thetilt base 28 while being orthogonal to the rotation center line C1. With thishinge 30, themonitor 26 is retracted in a state where thedisplay surface 26 a overlaps thetilt base 28 as shown inFIG. 2 . In addition, as shown inFIG. 3 , themonitor 26 can take an attitude in which themonitor 26 is away from thetilt base 28 and thedisplay surface 26 a faces the rear side of theimaging apparatus 10. - It should be noted that to facilitate rotation of the
monitor 26 about the rotation center line C2 from the retracted state shown inFIG. 2 , an arc-shaped recessedportion 28 a is formed at a right end of thetilt base 28. This recessedportion 28 a exposes a part of thedisplay surface 26 a of themonitor 26 overlapping thetilt base 28. Thus, the user's finger is likely to be caught on the exposed portion, that is, the free end of the monitor 26 (that is, the distal end farther from thehinge 30 in the left-right direction (Y-axis direction)), and as a result, the user can easily rotate the monitor 26 (as compared with the case where there is no recessedportion 28 a). - In addition, the recessed
portion 28 a of thetilt base 28 prevents the thumb of the right hand of the user who rotates thedial 24 from coming into contact with thetilt base 28. Accordingly, the user can smoothly rotate thedial 24 without feeling stress. In other words, the presence of the recessedportion 28 a enables thedial 24 to be arranged near thetilt base 28, and as a result, the size in the left-right direction (Y-axis direction) of theimaging apparatus 10 can be reduced. - Furthermore, in the case of the present embodiment, the
rear casing 14 is provided with an intake port and an exhaust port. -
FIG. 4 is a rear perspective view of the imaging apparatus in a disassembled state for maintenance. In addition,FIG. 5 is a rear perspective view of the imaging apparatus in a state where the intake port cover is removed. Then,FIG. 6 is a side perspective view of the imaging apparatus in a state where the side casing is removed. It should be noted thatFIG. 4 shows thefront casing 12 in a state where thetop casing 13 is attached. - As shown in
FIGS. 4 and 5 , therear casing 14 is provided with anintake port 14 c for taking in the outside air into theimaging apparatus 10. Specifically, theintake port 14 c is formed from thetop surface 14 a of the raisedportion 14 b of therear casing 14 to theside surface 14 d of the raisedportion 14 b on thedial 24 side. - In addition, in order to prevent large foreign matter from entering the
intake port 14 c, anintake port cover 32 is attached to theintake port 14 c. In the case of the present embodiment, theintake port cover 32 is fixed to therear casing 14 with onescrew 34 to facilitate cleaning of the inside of theimaging apparatus 10 near theintake port 14 c. Thescrew 34 is attached to therear casing 14 in the front-rear direction (X-axis direction) of theimaging apparatus 10. In addition, as shown inFIG. 2 , thescrew 34 is provided at a position covered by thetilt base 28 in the retracted state as shown inFIG. 2 , and is provided at a position where a tool that rotates thescrew 34 can access thescrew 34 in the front-rear direction (X-axis direction) when thetilt base 28 is inclined as shown inFIG. 5 . - It should be noted that as shown in
FIG. 2 , the recessedportion 28 a of thetilt base 28 is positioned on theintake port cover 32. To describe this, when thetilt base 28 is in the retracted state as shown inFIG. 2 , the right side end portion of thetilt base 28 covers a part of the intake port cover 32 (that is,intake port 14 c). Thus, the intake efficiency of theintake port 14 c decreases as compared with the case where thetilt base 28 is inclined away from thetop surface 14 a of the raisedportion 14 b as shown inFIG. 3 . In order to suppress a decrease in intake efficiency when thetilt base 28 is in the retracted state, the recessedportion 28 a of thetilt base 28 in the retracted state is positioned on theintake port cover 32. - As shown in
FIG. 6 , therear casing 14 is provided with anexhaust port 14 e for exhausting the outside air taken into theimaging apparatus 10 through the intake port 12 c. Specifically, anexhaust port 14 e is formed in a left side portion of therear casing 14. - In the
exhaust port 14 e, large foreign matter is prevented from entering by an exhaustport cover portion 16 a formed in theside casing 16. In the case of the present embodiment, in order to facilitate cleaning of the inside of theimaging apparatus 10 near theexhaust port 14 e, theside casing 16 is attached to thefront casing 12 and therear casing 14 with threescrews 36. It should be noted that theside casing 16 is provided with a door-shapedcover 40 for protecting theearphone jack 38, and a door-shapedcover 46 for protecting theUSB terminal connector 42 and the HDMI (registered trademark)connector 44. - As shown in
FIG. 4 , theimaging apparatus 10 is configured to be disassembled into afront unit 50 and arear unit 52 in consideration of maintenance. For example, theimaging apparatus 10 is disassembled into thefront unit 50 and therear unit 52 by removing a plurality of screws (not shown). -
FIG. 7 is a front perspective view of the imaging apparatus in a state of being disassembled into a front unit and a rear unit. It should be noted thatFIG. 7 shows thefront casing 12 in a state where thetop casing 13 is attached. - As shown in
FIGS. 4 and 7 , thefront unit 50 is configured by incorporating a plurality of components in thefront casing 12, and therear unit 52 is configured by incorporating a plurality of components in therear casing 14. It should be noted that inFIGS. 4 and 7 , a flexible cable and the like that electrically connect thefront unit 50 and therear unit 52 are omitted. - As shown in
FIG. 4 , aboard 54 is provided inside thefront unit 50. In the case of the present embodiment, theboard 54 is provided over the entirefront casing 12 in the left-right direction (Y-axis direction) of theimaging apparatus 10. The rear surface of the board 54 (the surface on the rear side of the imaging apparatus 10) is mounted with amemory 56 such as a DRAM, anIC chip 58 for performing image processing, and the like. In the case of the present embodiment, thememory 56 and theIC chip 58 are provided in the left side portion of theboard 54. - In addition, the rear surface of the
board 54 is provided with acard connector 60 into which the recording medium M is removably inserted. The recording medium M is a card-type recording medium (what is called a memory card), and is, for example, a CFexpress card. Specifically, thecard connector 60 roughly includes a part of theboard 54 provided with a terminal (not shown) electrically connected to a terminal of the recording medium M, and a connector frame (recording medium accommodation portion) 62 that covers the part of theboard 54, in a state of leaving a space for the recording medium M to enter, and maintains contact between the terminal on theboard 54 and the terminal of the recording medium M. Theconnector frame 62 is formed by machining a metal thin plate such as stainless steel. In the case of the present embodiment, thecard connector 60 is provided in the right side portion of theboard 54 away from thememory 56 and theIC chip 58. It should be noted that the recording medium M can access thecard connector 60 by opening theconnector cover 64 provided in the right side portion of theimaging apparatus 10. - As shown in
FIG. 7 , aradiator plate 66 is provided inside therear unit 52. Theradiator plate 66 is a plate-shaped member made of a metal material such as copper having high thermal conductivity. Theradiator plate 66 cools the recording medium M inserted in thecard connector 60 by absorbing heat from theconnector frame 62 of thecard connector 60. In addition, in the case of the present embodiment, theradiator plate 66 cools thememory 56 and the IC chip 58 (heat source) by absorbing heat from these components. It should be noted that in the case of the present embodiment, theradiator plate 66 is not provided over the entirerear casing 14 in the left-right direction (Y-axis direction) of theimaging apparatus 10, but is provided from the central portion to the left side portion of therear casing 14. - The
imaging apparatus 10 includes a heat transfer element that thermally connects thememory 56, theIC chip 58, and thecard connector 60 provided in thefront unit 50 to theradiator plate 66 provided in therear unit 52. -
FIGS. 8A and 8B are perspective views of the imaging apparatus showing heat transfer elements that thermally connect the front unit and the rear unit.FIG. 8A is a front perspective view, andFIG. 8B is a rear perspective view. It should be noted thatFIGS. 8A and 8B show thefront casing 12 in a state of thetop casing 13 attached. - As shown in
FIGS. 8A and 8B , theradiator plate 66 faces thememory 56 and theIC chip 58 in the thickness direction of theboard 54, that is, in the front-rear direction (X-axis direction) of theimaging apparatus 10. Therefore, in order to thermally connect thememory 56 and theIC chip 58 to theradiator plate 66, the siliconadhesive sheets adhesive sheets memory 56 and theIC chip 58, and are in surface contact with thefront surface 66 a of the radiator plate 66 (surface on the front side of the imaging apparatus 10). In addition, the siliconadhesive sheet 72 is also arranged between a portion of theboard 54 near thememory 56 and theIC chip 58 and theradiator plate 66. The siliconadhesive sheet 72 is in surface contact with theboard 54 and is in surface contact with theradiator plate 66. Heat of thememory 56, theIC chip 58, and theboard 54 is transferred to theradiator plate 66 through the siliconadhesive sheets - It should be noted that the silicon
adhesive sheets imaging apparatus 10 is disassembled into thefront unit 50 and therear unit 52 for maintenance, the siliconadhesive sheets memory 56, theIC chip 58, and the board 54 (or, remain on the radiator plate 66) as shown inFIG. 4 . Then, when the maintenance is completed and thefront unit 50 and therear unit 52 are united again, the siliconadhesive sheets memory 56, theIC chip 58, and theboard 54 to theradiator plate 66 again. Therefore, theimaging apparatus 10 has high maintainability (ease of disassembly and assembly) while securing high heat dissipation with respect to thememory 56, theIC chip 58, and theboard 54. That is, thermal connection between thememory 56, theIC chip 58, and theboard 54 and theradiator plate 66 is released by only disassembling into thefront unit 50 and therear unit 52. In addition, thermal connection between thememory 56, theIC chip 58, and theboard 54 and theradiator plate 66 is established by only uniting thefront unit 50 and therear unit 52. As a result, the user does not need to perform any work on the thermal connection between thememory 56, theIC chip 58, and theboard 54 and theradiator plate 66. - On the other hand, as shown in
FIGS. 8A and 8B , theradiator plate 66 does not face theconnector frame 62 of thecard connector 60 in the thickness direction of theboard 54, that is, the front-rear direction (X-axis direction) of theimaging apparatus 10. Specifically, theradiator plate 66 is provided at a position away to the left side with respect to theconnector frame 62 of thecard connector 60. As means for thermally connecting theconnector frame 62 of thecard connector 60 and theradiator plate 66, which are separated in this manner, theimaging apparatus 10 includes a thermalconductive sheet 74. - As shown in
FIG. 8A , the thermalconductive sheet 74 is a flexible sheet having high thermal conductivity, and is a thin strip-shaped sheet extending in the left-right direction (Y-axis direction) ofimaging apparatus 10 in the case of the present embodiment. In addition, in the case of the present embodiment, the thermalconductive sheet 74 is a graphite sheet. The graphite sheet is obtained by processing graphite having high thermal conductivity into a thin sheet shape. - As shown in
FIGS. 7 and 8A , one end (first portion) 74 a of the thermalconductive sheet 74 is attached and fixed to the right end of theradiator plate 66 included in therear unit 52 via anadhesive sheet 76. As a result, the thermalconductive sheet 74 is included in therear unit 52. - In order to easily disassemble into the
front unit 50 and therear unit 52, the thermalconductive sheet 74 is not fixed to theconnector frame 62 of thecard connector 60 included in thefront unit 50. The thermalconductive sheet 74 is simply brought into surface contact with thetop plate portion 62 a of theconnector frame 62 via the other end (second portion) 74 b thereof. In order to maintain the surface contact, theimaging apparatus 10 includes acushion member 78 that urges theother end 74 b of the thermalconductive sheet 74 toward thetop plate portion 62 a of theconnector frame 62. - The
cushion member 78 is made of an elastic material such as urethane foam, and has lower rigidity than theconnector frame 62. In the case of the present embodiment, thecushion member 78 is attached to thesecond portion 74 b of the thermalconductive sheet 74 via theadhesive sheet 80. In addition, thecushion member 78 is provided in therear casing 14, and is supported by a base plate (cushion member support member) 82 to which a man-machine interface such as thedial 24 provided in therear casing 14 is attached. - In a state where the
front unit 50 and therear unit 52 are united, thesecond portion 74 b of the thermalconductive sheet 74 is sandwiched between thetop plate portion 62 a of theconnector frame 62 and thecushion member 78. In this state, thecushion member 78 is compressed and deformed between theconnector frame 62 and thebase plate 82. Thus, thecushion member 78 urges thesecond portion 74 b of the thermalconductive sheet 74 toward theconnector frame 62 with an urging force that does not deform theconnector frame 62. Thus, the contact between the thermalconductive sheet 74 and theconnector frame 62 is maintained. As a result, theconnector frame 62 is thermally connected to theradiator plate 66 via the thermalconductive sheet 74. - When the
imaging apparatus 10 is disassembled into thefront unit 50 and therear unit 52 for maintenance, thesecond portion 74 b of the thermalconductive sheet 74 is separated from thetop plate portion 62 a of theconnector frame 62. When the maintenance is completed and thefront unit 50 and therear unit 52 are united again, thesecond portion 74 b of the thermalconductive sheet 74 is brought into surface contact with thetop plate portion 62 a of theconnector frame 62 again. Therefore, theimaging apparatus 10 has high maintainability (ease of disassembly and assembly) while securing high heat dissipation from theconnector frame 62, specifically, from the recording medium M inserted into theconnector frame 62. That is, thermal connection between theconnector frame 62 and theradiator plate 66 is released by only disassembling into thefront unit 50 and therear unit 52. In addition, thermal connection between theconnector frame 62 and theradiator plate 66 is established by only uniting thefront unit 50 and therear unit 52. As a result, at the time of maintenance such as repair, it is not necessary to perform some work regarding thermal connection between theconnector frame 62 and theradiator plate 66. In addition, since the thermalconductive sheet 74 is not broken when therear unit 52 is removed, the thermalconductive sheet 74 can be reused. - It should be noted that in the case of the present embodiment, the
cushion member 78 is attached to thesecond portion 74 b of the thermalconductive sheet 74 via theadhesive sheet 80. In place of this, thecushion member 78 may be attached to thebase plate 82 without being attached to the thermalconductive sheet 74. In addition, in place of thebase plate 82, another member that supports thecushion member 78 may be provided in therear unit 52. - In the case of the present embodiment, the
radiator plate 66 is cooled by outside air. -
FIGS. 9A and 9B show the rear unit with the radiator plate removed.FIG. 9A is a front perspective view, andFIG. 9B is a rear perspective view. It should be noted that inFIGS. 9A and 9B , themonitor 26, thetilt base 28, and thehinge 30 are omitted. - As described above, and as shown in
FIG. 9A , theintake port 14 c is provided in therear casing 14 of therear unit 52. The outside air having passed through theintake port 14 c flows into between theradiator plate 66 and therear casing 14. In order to generate such inflow of outside air, afan 84 is attached to therear surface 66 b of theradiator plate 66 facing therear casing 14. That is, thefan 84 is included in therear unit 52. - In the case of the present embodiment, as shown in
FIG. 9B , thefan 84 is a sirocco fan. Specifically, thefan 84 sucks outside air in the extending direction (X-axis direction) of the rotation center line R of the fan via thesuction port 84 a. Thefan 84 blows out the sucked outside air in a direction orthogonal to the extending direction of the rotation center line R (Y-axis direction) via theblowout port 84 b. It should be noted that thefan 84 is provided in therear unit 52 so that the extending direction of the rotation center line R is parallel to the front-rear direction of theimaging apparatus 10. - In addition, the
heat sink 86 is arranged in front of theblowout port 84 b of thefan 84. Theheat sink 86 is attached to and thermally connected to therear surface 66 b of theradiator plate 66. In addition, theheat sink 86 includes a plurality offins 86 a each extending in the left-right direction (Y-axis direction) of theimaging apparatus 10 and being side by side in the height direction (Z-axis direction) at intervals. - When the
fan 84 rotates, outside air is sucked into theimaging apparatus 10 through theintake port 14 c (intake port cover 32) of therear casing 14. The sucked outside air enters thefan 84 through thesuction port 84 a and is blown out through theblowout port 84 b. The blown-out outside air passes through between the plurality offins 86 a of theheat sink 86. At this time, the outside air takes away heat transferred from theradiator plate 66 to theheat sink 86 through the plurality offins 86 a. Then, the outside air in a high-temperature state by taking heat is discharged to the outside of theimaging apparatus 10 through theexhaust port 14 e (exhaustport cover portion 16 a) of therear casing 14. The radiator plate is cooled by the flow of the outside air, and as a result, theconnector frame 62 of thecard connector 60, thememory 56, theIC chip 58, and theboard 54 which are thermally connected to theradiator plate 66 are cooled. - According to the present embodiment as described above, in an imaging apparatus that stores a captured moving image or the like in a removable recording medium, it is possible to achieve high maintainability while securing high heat dissipation performance for the recording medium. That is, even if the connector of the recording medium and the radiator plate are included in separate units when the imaging apparatus is disassembled into a plurality of units for maintenance, thermal connection between the connector frame of the connector and the radiator plate can be easily released in a restorable manner.
- Although the embodiment of the present disclosure has been described above with reference to the above-described embodiment, the embodiment of the present disclosure is not limited to the above-described embodiment.
- For example, in the case of the above-described embodiment, as shown in
FIGS. 8A and 8B , the thermalconductive sheet 74 that thermally connects theconnector frame 62 of thecard connector 60 and theradiator plate 66 is a graphite sheet, but the embodiment of the present disclosure is not limited thereto. The thermalconductive sheet 74 may be, for example, a sheet-shaped thin copper plate. However, as shown inFIGS. 8A and 8B , when the thermalconductive sheet 74 needs to be bent and/or when thetop plate portion 62 a of theconnector frame 62 has irregularities, a graphite sheet having higher flexibility is preferable. - In addition, in the case of the above-described embodiment, the
board 54 on which thecard connector 60 is provided is included in thefront unit 50, and theradiator plate 66 is included in therear unit 52. However, the embodiment of the present disclosure is not limited thereto. For example, the board on which the card connector is provided may be included in the rear unit, and theradiator plate 66 may be included in the front unit. - Furthermore, in the case of the above-described embodiment, the
radiator plate 66 faces thememory 56, theIC chip 58, and theboard 54 in the thickness direction of theboard 54 in order to absorb heat from these components. Then, theconnector frame 62 of thecard connector 60 provided away from theradiator plate 66 is thermally connected to theradiator plate 66 via the thermalconductive sheet 74. However, the embodiment of the present disclosure is not limited thereto. A radiator plate dedicated to the connector frame of the card connector may be separately provided. - Furthermore, in the case of the above-described embodiment, the
radiator plate 66 is forcibly cooled by thefan 84 via theheat sink 86. However, the embodiment of the present disclosure is not limited thereto. For example, the radiator plate may be cooled without a fan as long as the recording medium M can be sufficiently cooled. - In addition, in the case of the above-described embodiment, the recording medium M removable from the
imaging apparatus 10 is a card-type recording medium, that is, a CFexpress card being an example of a memory card. However, the embodiment of the present disclosure is not limited thereto. The recording medium has only to be a recording medium removably accommodated in a recording medium accommodation portion provided on the board. For example, the recording medium may be a memory card such as an SD card or a microSD card. - That is, in a broad sense, an imaging apparatus according to an embodiment of the present disclosure includes: a board; a recording medium accommodation portion provided on the board and configured to removably accommodate a recording medium; a radiator plate provided at a position away from the recording medium accommodation portion; a thermal conductive sheet including a first portion fixed to the radiator plate and a second portion in contact with the recording medium accommodation portion; a cushion member configured to urge a second portion of the thermal conductive sheet toward the recording medium accommodation portion and to maintain contact between a second portion of the thermal conductive sheet and the recording medium accommodation portion; and a cushion member support member configured to support the cushion member.
- It should be noted that selectively, the imaging apparatus according to the embodiment of the present disclosure may be an imaging apparatus including: an intake port provided on a rear surface of a casing; a tilt base tiltable with respect to the rear surface and including an end portion that covers at least a portion of the intake port in a state of being closest to the rear surface; and a monitor provided on the tilt base so as to be movable between a first position overlapping with the tilt base and a second position away from the tilt base. The end portion of the tilt base includes a recessed portion that exposes a portion of a surface of the monitor facing the tilt base when the monitor is positioned at the first position. The recessed portion is positioned on the intake port in a state where the tilt base is closest to the rear surface.
- As described above, the above-described embodiment has been described as the exemplification of the technique in the present disclosure. To that end, drawings and a detailed description are provided. Therefore, among the components described in the drawings and the detailed description, not only the components essential for solving the problem, but also the components not essential for solving the problem may be included in order to exemplify the above technique. Therefore, it should not be recognized that these non-essential components are essential immediately because these non-essential components are described in the drawings and the detailed description.
- In addition, since the above embodiment is for exemplifying the technique in the present disclosure, various changes, substitutions, additions, omissions, and the like can be made within the scope of the claims or the equivalent thereof.
- The present disclosure is applicable to an imaging apparatus that cools a removable recording medium.
Claims (7)
1. An imaging apparatus comprising:
a board;
a recording medium accommodation portion provided on the board and configured to removably accommodate a recording medium;
a radiator plate provided at a position away from the recording medium accommodation portion;
a thermal conductive sheet including a first portion fixed to the radiator plate and a second portion in contact with the recording medium accommodation portion;
a cushion member configured to urge a second portion of the thermal conductive sheet toward the recording medium accommodation portion and to maintain contact between a second portion of the thermal conductive sheet and the recording medium accommodation portion; and
a cushion member support member configured to support the cushion member.
2. The imaging apparatus according to claim 1 , wherein in a thickness direction of the board, the radiator plate faces and is in contact with a heat source provided on the board away from the recording medium accommodation portion.
3. The imaging apparatus according to claim 1 ,
wherein the imaging apparatus is configured to be disassembled into a front unit positioned on a front side and a rear unit positioned on a rear side,
wherein the board is included in the front unit, and
wherein the radiator plate, the thermal conductive sheet, and the cushion member support member are included in the rear unit.
4. The imaging apparatus according to claim 3 , further comprising a fan included in the rear unit and configured to cool the radiator plate.
5. The imaging apparatus according to claim 1 , wherein the thermal conductive sheet is a graphite sheet.
6. The imaging apparatus according to claim 1 , wherein the recording medium is a memory card.
7. The imaging apparatus according to claim 6 , wherein the recording medium is a CFexpress card.
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JP2022139640A (en) * | 2021-03-12 | 2022-09-26 | キヤノン株式会社 | Imaging apparatus |
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US20220294956A1 (en) * | 2021-03-12 | 2022-09-15 | Canon Kabushiki Kaisha | Image pickup apparatus |
US11601573B2 (en) * | 2021-03-12 | 2023-03-07 | Canon Kabushiki Kaisha | Image pickup apparatus having a structure for dissipating heat |
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CN216122618U (en) | 2022-03-22 |
US11438489B1 (en) | 2022-09-06 |
CN115086511A (en) | 2022-09-20 |
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