cooling attachment

Abstract

A cooling attachment is provided. The cooling attachment is attachable to an electronic device, and includes an outer surface having first air intake and exhaust ports configured to intake and exhaust a fluid inside the electronic device, a cooling duct through which the fluid flows, and a cooling unit disposed inside the cooling duct. The cooling unit is configured to move the fluid between the inside of the electronic device and the inside of the cooling duct through the first air intake and exhaust ports. The first air intake and exhaust ports have a shape that is longer in a second direction than in a first direction in a surface-in direction of the outer surface. The cooling duct includes a first region and a second region disposed closer to the cooling unit than the first region. The first region in the first direction is narrower than the second region in the first direction.

Description

Technical Field

[0001] This disclosure relates to a cooling accessory. Background Technology

[0002] Japanese Patent Application Publication No. 2019-219458 discloses a camera device having an air inlet and an exhaust outlet formed in the back cover of the camera device, as well as a duct formed by the back cover and the display unit. Japanese Patent Application Publication No. 2012-198447 discloses a camera cooling system having a blower that delivers air to the internal space of the camera device when the camera device is attached.

[0003] However, the camera device disclosed in Japanese Patent Application Publication No. 2019-219458 does not have a blower to allow air to pass through a duct, and therefore has a lower cooling capacity than devices with a blower. Furthermore, the freedom of arrangement of the air inlet and outlet is limited.

[0004] In the camera cooling system disclosed in Japanese Patent Application Publication No. 2012-198447, the air inlet of the camera is located in the tripod attachment unit, thus restricting the placement of the air inlet. Furthermore, since the blower is attached to the bottom of the camera, the size of the camera increases in the height direction, reducing portability. When the camera is fixed to a tripod or image stabilizing gimbal with the blower attached to the bottom, the position of the camera's optical axis becomes higher relative to the bottom mounting unit, thus increasing image blurring due to vibration, etc. On the other hand, because the sides other than the bottom of the camera interfere with the grip, cable connection terminals, and movable display unit, a flow path for air blowing cannot be ensured on these sides, thus reducing cooling performance. Summary of the Invention

[0005] A cooling accessory according to one aspect of this disclosure can be attached to an electronic device. The cooling accessory may include: an outer surface having first air inlets and exhaust outlets configured to draw in and expel fluid from inside the electronic device; a cooling conduit through which the fluid flows; and a cooling unit disposed inside the cooling conduit. The cooling unit may be configured to allow the fluid to move between the interior of the electronic device and the interior of the cooling conduit via the first air inlets and exhaust outlets. The first air inlets and exhaust outlets may have a shape that is longer in a second direction than in a first direction in an in-plane direction of the outer surface. The cooling conduit may include a first region and a second region disposed closer to the cooling unit than the first region. The first region in the first direction may be narrower than the second region in the first direction.

[0006] The features of this disclosure will become apparent from the following description of embodiments with reference to the accompanying drawings. The following description of the embodiments is given by way of example. Attached Figure Description

[0007] Figure 1A and Figure 1B This is a perspective view of the camera device according to this embodiment.

[0008] Figure 2A and Figure 2B This is an external view of the cooling accessory according to this embodiment.

[0009] Figure 3 This is an exploded perspective view of the cooling accessory according to this embodiment.

[0010] Figure 4A and Figure 4B This is an external view of the camera system according to this embodiment.

[0011] Figure 5A and Figure 5B This is an external view of the camera system according to this embodiment.

[0012] Figure 6A and Figure 6B This is a block diagram of the camera system according to this embodiment.

[0013] Figure 7A and Figure 7B This is a cross-sectional view of the camera system according to this embodiment.

[0014] Figure 8A and Figure 8B This is a schematic diagram of the camera system according to this embodiment.

[0015] Figure 9 This is a cross-sectional view of the camera system according to this embodiment.

[0016] Figure 10 This is a cross-sectional view of the camera system according to this embodiment. Detailed Implementation

[0017] In the following, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. These embodiments are merely examples of components for implementing the present disclosure and can be appropriately modified or changed according to the structure of the device to which the present disclosure is applied or various conditions. Furthermore, the embodiments can be appropriately combined with each other. Structure of camera body 100

[0018] First, refer to Figure 1A and Figure 1B The camera body (video recording device, electronic device) 100 according to this embodiment will be described. Figure 1A and Figure 1BThis is an external view of the camera body 100. Figure 1A The camera body 100 is shown as viewed from the front, and Figure 1B The camera body 100 is shown as viewed from the rear. In this embodiment, the width direction (lateral direction, horizontal direction) of the camera body 100 is defined as the X direction (third direction), the height direction (vertical direction) of the camera body 100 is defined as the Y direction (second direction), and the direction perpendicular to the imaging surface of the image sensor (optical axis direction) is defined as the Z direction (first direction).

[0019] A rear display unit (movable display unit) 101, located on the rear side of the camera body 100, is attached to the camera body 100 in a manner that allows it to be opened, closed, and rotated, and displays images generated through photography (image capture) and various types of information related to photography. The rear display unit 101 includes a touch panel and can detect touch operations performed by the user on the display surface (operation surface) of the rear display unit 101. A top display unit 102, located on the top surface of the camera body 100, can display setting values ​​for various imaging parameters such as shutter speed and aperture value (F-stop).

[0020] The shutter button 103 is a user-operable component that instructs the camera body 100 to take pictures. The mode switch 104 is a user-operable component that switches between various modes. The main electronic dial 106 is a user-rotatable component that changes the setting values ​​of the recording parameters. The power switch 107 is a user-operable component that switches between powering on and off the camera body 100. The secondary electronic dial 108 is a user-operable component that moves selection boxes such as the focus detection (autofocus (AF)) box or performs image transmission.

[0021] Terminal cover 128 is a cover that protects the connector (terminal portion) that can be connected to a connection cable extending from an external device.

[0022] The multi-controller 109 is located on the back of the camera body 100. The multi-controller 109 is configured to accept input via key presses and tilt operations in the up, down, left, right, and diagonal directions. By operating the multi-controller 109, the user can move selection boxes or select items from various menus.

[0023] The rear electronic dial 110 is an operating component that can be operated by the user to move the selection box or to send images. The rear electronic dial 110 is positioned such that it allows for intuitive operation by the user while the captured image is displayed on the rear display unit 101, and also allows for simple operation even when the user holds the camera body 100 in a vertical orientation. The setting button 111 is located in the center of the rear electronic dial 110. The setting button 111 is a push-button type operating component that can be operated by the user to confirm the selected item, etc.

[0024] The motion image capture button 112 is a user-operable component that indicates the start and stop of motion image recording. Button group A 113 includes operating components related to focusing and exposure, and includes an AF start button, an automatic exposure (AE) lock button, and an AF frame selection button arranged side by side. By pressing button group A 113 in the camera standby state, the user can start AF, change the AF frame, or lock the exposure.

[0025] Button group B 114 includes zoom in / out buttons, an information display button, and a quick settings button arranged in an L-shape. By operating the zoom in / out buttons in live view mode, the user can toggle the zoom in / out of the live view image. By operating the zoom in / out buttons in playback mode, the user can toggle the zoom in / out of the currently displayed captured image.

[0026] By operating the information display button, the user can switch the display method of the information displayed on the rear display unit 101. By operating the quick setting button, the user can immediately switch the display of the rear display unit 101 to a screen for changing the setting values ​​of the camera parameters.

[0027] Button group C 115 includes a playback button and a delete button. By operating the playback button, the user can switch between video recording mode and playback mode. When the playback button is operated in video recording mode, the camera switches to playback mode, and the latest captured image from the images recorded on a medium (not shown) can be displayed on the rear display unit 101. In playback mode, by operating the delete button, the user can delete the selected captured image.

[0028] Button group D 116 includes a menu button and a rating button. When the user operates the menu button, a menu screen for displaying configurable items is displayed on the rear display unit 101. The user can intuitively select and configure items by touching the menu screen displayed on the rear display unit 101 or by operating the multi-controller 109, the rear electronic dial 110, and the setting button 111. In playback mode, the user can assign a rating to the playback image by operating the rating button.

[0029] An interchangeable lens (not shown) is detachably attached to the mounting unit 117. A communication terminal 118 located inside the mounting unit 117 is used for communication between the camera body 100 and the interchangeable lens.

[0030] The viewfinder 119, located on the upper rear part of the camera body 100, is an electronic viewfinder that allows the user to look at it to visually identify images such as those displayed in the live view. The eyepiece cover 120 is a rubber component that contacts the area around the face of the user looking at the viewfinder 119.

[0031] The grip portion 121 is a grip unit with a shape that allows a user to easily hold the camera body 100 with their right hand. The card cover 122 is a cover that covers the medium slot 153 (not shown) for storing (not shown) medium. The card cover 122 is provided at the portion of the grip portion 121 that contacts the user's palm.

[0032] Tripod mount (tripod socket) 123 is an attachment member used when external accessories are attached to the bottom surface of the camera body 100. Battery cover (battery cover) 124 is a cover for storing (not shown) batteries. Card holder 122 is detachably attached to the bottom external component 132.

[0033] The rear mounting member 125 is an outer mounting member that forms the back of the camera body 100 among the outer mounting members constituting the camera body 100, and is formed of metal or polycarbonate, etc. The rear mounting member 125 includes a main body air inlet and exhaust port 125a and a receiving portion outer mounting surface 125b for accommodating the rear display unit 101 on the bottom side of the camera body 100.

[0034] The side mounting member 126 is an outer mounting member that forms the left side of the camera body 100 when viewed from the rear, and is made of metal or polycarbonate, etc. The side mounting member 126 includes a main air inlet and an exhaust outlet 126a provided in the camera body 100. The bottom mounting member 132 is an outer mounting member that forms the bottom surface of the camera body 100, and is made of metal or polycarbonate, etc.

[0035] The loops 127 used to hook the strip are metal components provided on the left and right sides of the top surface of the camera body 100 and are connected to the metal housing or external component of the camera body 100. Structure of cooling accessory 200

[0036] Next, refer to Figure 2A and Figure 2BThe external structure of the cooling accessory (accessory device, cooling device) 200 according to this embodiment will be described. Figure 2A and Figure 2B This is an external view of the cooling accessory 200. Figure 2A This is a diagram of the attachment surface from the camera body 100, and Figure 2B This is a view from the side opposite to the attachment surface to the camera body 100. The cooling accessory 200 can be attached to the camera body 100.

[0037] The cooling accessory 200 includes an attachment screw (fixing member) 201 for attaching (fixing) the cooling accessory 200 to the camera body 100. The attachment screw 201 includes a screw portion 201a protruding toward the attachment surface to the camera body 100. The attachment screw 201 also includes a screw fastening portion 201b on the side opposite to the attachment surface to the camera body 100 for tightening by the user.

[0038] The cooling accessory 200 includes an attachment surface outer member (outer surface) 204 attached to the camera body 100. The attachment surface outer member 204 has accessory air inlets and outlets (first air inlets and outlets) 204a capable of drawing in and expelling fluid from inside the camera body 100. The accessory air inlets and outlets 204a have a shape that is longer in the Y direction (second direction) than in the Z direction (first direction) in the in-plane direction (XZ plane) of the attachment surface outer member 204. The accessory air inlets and outlets 204a are connected in a manner that overlaps with the main air inlets and outlets 126a of the camera body 100. An accessory air inlet and outlet (second air inlet and outlet) 205a is disposed in the top surface of the cooling accessory 200.

[0039] The attachment surface outer component 204 includes connection terminals (accessory digital connection terminal, second connection terminal) 202. When connection terminal 202 is connected to connection terminals (body digital connection terminal, first connection terminal) 105a of the camera body 100, power supply and control signal transmission from the camera body 100 to the cooling accessory 200 are realized. That is, when connection terminal 202 is connected to connection terminal 105a, the cooling accessory 200 can obtain drive power and control signals for the fan 208 from the camera body 100 via connection terminal 202.

[0040] The attachment surface outer component 204 also includes a heat dissipation component 203 extending from inside the cooling conduit 207a, which will be described later. The heat dissipation component 203 is configured to contact the ring 127 of the camera body 100.

[0041] Next, refer to Figure 3 The internal structure of the cooling accessory 200 will be described. Figure 3This is an exploded perspective view of the cooling accessory 200. The housing of the cooling accessory 200 includes an accessory body 207 made of metal or resin components, an attachment surface outer component 204 having accessory air inlet and exhaust ports 204a, and a top outer component 205 having accessory air inlet and exhaust ports 205a.

[0042] The elastic member 204c is disposed around the entire periphery of the accessory air inlet and exhaust port 204a and is configured to be in close contact with the entire periphery of the main body air inlet and exhaust port 126a of the camera body 100. The accessory body 207 forms a cooling duct 207a between the accessory air inlet and exhaust port 204a and the accessory air inlet and exhaust port 205a, which constitutes a flow path through which fluids such as air pass.

[0043] The outer mounting component 204 is fixed to the accessory body 207 by screws 204b, and the top mounting component 205 is fixed to the accessory body 207 by screws 205b. In the flow path of the accessory body 207, each fan 208 is fixed to the accessory body 207 by screws 205b. Therefore, fluid such as air can be supplied from the accessory air inlet and exhaust port 204a to the accessory air inlet and exhaust port 205a, or vice versa. Thus, each fan 208 is a cooling unit disposed inside the cooling duct 207a, and allows fluid to move between the interior of the camera body 100 and the interior of the cooling duct 207a via the accessory air inlet and exhaust port 204a. Each fan 208 can form a flow path for fluid flowing in the Y direction inside the cooling duct 207a.

[0044] The accessory air intake and exhaust ports 205a, whose normal direction is Y, can be arranged with Y as the normal direction. Each fan 208 draws in and exhausts fluid from inside the cooling duct 207a between the accessory air intake and exhaust ports 204a and the accessory air intake and exhaust ports 205a, which are arranged with X as the normal direction.

[0045] A heat dissipation component 203 is disposed below the fan 208, and the heat dissipation fins 203a of the heat dissipation component 203 are arranged inside the cooling pipes 207a of the accessory body 207. Inside the accessory body 207, an accessory control board (accessory control plate) 209, including a connection terminal 202, is fixed to the accessory body 207 by screws 209a. Power is supplied from the connection terminal 105a of the camera body 100 to the accessory control board 209. Thus, the accessory control board 209 can control the rotation of the fan 208. This embodiment is not limited to this example, and the cooling accessory 200 may include a battery or be powered to the accessory control board 209 via an external power cable. Attachment structure of cooling accessory 200

[0046] Next, refer to Figure 4A and Figure 4B The attachment structure of the cooling accessory 200 to the camera body 100 will be described. Figure 4A and Figure 4B This is an external view of the camera system 10, which includes the camera body 100 and the cooling accessory 200. Figure 4A and Figure 4B An example structure is shown where the cooling accessory 200 is directly attached to the camera body 100. Figure 4A The state before attaching the cooling accessory 200 is shown, and Figure 4B The state after attaching the cooling accessory 200 is shown.

[0047] Figure 4A The image shows the camera body 100 with its terminal cover 105 open. Inside the terminal cover 105, there are connection terminals 105a, video output terminals 105b, external microphone terminals 105c, headphone terminals 105d, remote control terminals 105e, and screw holes (first holes) 105f for attaching cooling accessories 200. The connection terminals 105a, video output terminals 105b, external microphone terminals 105c, headphone terminals 105d, and remote control terminals 105e are arranged in the terminal area of ​​the camera body 100.

[0048] The connecting terminal 105a of the camera body 100 is connected to the connecting terminal 202 of the cooling accessory 200, and the screw hole 105f in the camera body 100 is connected to the attachment screw 201 of the cooling accessory 200. That is, when the cooling accessory 200 is attached to the camera body 100, the attachment screw 201 is fixed to the screw hole 105f in the camera body 100. Therefore, as... Figure 4B As shown, the cooling accessory 200 can be attached to the camera body 100. At this time, the accessory air inlet and exhaust port 204a overlaps with the main air inlet and exhaust port 126a of the camera body 100 and is sealed by the elastic member 204c of the accessory air inlet and exhaust port 204a.

[0049] Next, refer to Figure 5A and Figure 5B A description will be given of a structural example for attaching the cooling accessory 200 to the camera body 100 via the mounting accessory 300 for attaching the camera body 100 to the tripod. Figure 5A and Figure 5B This is an external view of the camera system 10a, which includes the camera body 100, cooling accessory 200, and mounting accessory 300. Figure 5A The state before attaching the cooling accessory 200 is shown, and Figure 5B The state after attaching the cooling accessory 200 is shown.

[0050] The mounting accessory 300 is made of metal and is fixed to the tripod mount 123 of the camera body 100 by tripod screws 301. The mounting accessory 300 has an attachment screw hole (second hole) 300a for attaching the attachment screw 201 to the cooling accessory 200. That is, the attachment screw 201 is fixed to the screw hole 300a in the mounting accessory 300. As described above, even if the camera body 100 does not have a screw hole 105f for attaching the cooling accessory 200, the mounting accessory 300 can still be used to attach the cooling accessory 200 to the camera body 100. Circuit configuration of camera body 100 and cooling accessory 200

[0051] Next, refer to Figure 6A and Figure 6B The circuit configuration of the camera body 100 and the cooling accessory 200 will be described. Figure 6A It is in the state before the cooling accessory 200 is attached. Figure 4A A block diagram of the camera body 100 (in its state). Figure 6B It is in the state where the cooling accessory 200 is attached. Figure 4B A block diagram of the camera body 100 and cooling accessory 200 (camera system 10) in its state.

[0052] First, refer to Figure 6A The description of camera body 100 in Figure 4A The camera operates under these conditions. The central processing unit (CPU) 143 is the control unit that performs overall operation control of the camera body 100 and executes various processes and instructions for each circuit unit. The main circuit board 142 is equipped with various components, such as the CPU 143, which is one of the heat-generating components. The main circuit board 142 is a printed circuit board (PWB). The camera microcomputer and various electrical circuits (detection circuits, control circuits, and processing circuits) are mounted on the main circuit board 142.

[0053] The CPU 143 controls the various functional blocks of the camera body 100 and performs calculations for control based on the computer program read from the memory 152. The power supply 150 supplies power to the various circuit units in the camera body 100. The image sensor 141 includes photoelectric conversion elements such as a CCD sensor or a CMOS sensor, and converts the optical image of the subject formed by the interchangeable lens (camera optics system) into an image signal. The image signal obtained by the image sensor 141 is converted into image data by the image processing unit 151 and output to the CPU 143.

[0054] A shutter 156 is positioned in front of an image sensor 141 and adjusts the exposure time of the image sensor 141. A shutter control unit 154 drives the shutter 156 based on signals input from a CPU 143. When the user operation mode switch 104 is activated, an operation detector 157 outputs a signal to the CPU 143 to change imaging conditions such as exposure and shutter speed. The camera body 100 can select a desired motion picture shooting mode from a plurality of motion picture shooting modes via the operation mode switch 104. Motion picture shooting modes include, for example, a high image quality mode and a low image quality mode. During motion picture shooting in high image quality mode, the processing load on the image sensor 141 and the CPU 143 increases, and consequently, the heat generated by these electronic components and (not shown) media increases. When the heat generation increases and exceeds the permissible temperature, thermal runaway and a reduction in product life may occur, thus potentially reducing the motion picture shooting time.

[0055] To address this issue, in this embodiment, as referenced... Figure 3 The cooling accessory 200 can be attached to the camera body 100 as needed. On the other hand, in low image quality mode, the time required to capture moving images is increased because the heat generated by these components is less than that in high image quality mode.

[0056] Next, refer to Figure 6B , will describe Figure 4B The circuit configuration of the camera body 100 and cooling accessory 200 in their current state. Here, only the circuit configuration of the camera body 100 and cooling accessory 200 will be described. Figure 6A The difference lies in the fact that, in the cooling accessory 200, as described above, power is supplied from the connection terminal 105a of the camera body 100 to the accessory control board 209 via the connection terminal 202. When power is supplied to the accessory control board 209 in the cooling accessory 200, the accessory control board 209 automatically controls the drive of the fan 208. Alternatively, the accessory control board 209 may control the drive of the fan 208 based on signals input from the CPU 143 via the connection terminals 105a and 202. Flow path shape of cooling accessory 200

[0057] Next, refer to Figure 7A , Figure 7B , Figure 8A , Figure 8B , Figure 9 and Figure 10 The flow path shape of the accessory body 207 of the cooling accessory 200 will be described.

[0058] Figure 7A This is a side view of the cooling accessory 200 attached to the camera body 100. Figure 7AThe diagram shows the terminal cables connected to the video output terminal 105b, external microphone terminal 105c, headphone terminal 105d, and remote control terminal 105e of the camera body 100, with the rear display unit 101 open relative to the camera body 100.

[0059] exist Figure 7A In the image, the cooling conduit 207a of the accessory body 207 is indicated by a shaded area. The cooling conduit 207a has a shape that cuts out the terminal portion avoidance area 207b to avoid interference with the terminal cable, and cuts out the receiving area 207c of the rear display unit 101 to avoid interference with the rear display unit 101. In other words, the cooling conduit 207a includes a first region 207a1 and a second region 207a2 that is closer to the fan 208 than the first region 207a1, and the width of the first region 207a1 in the Z direction is narrower than the width of the second region 207a2. The respective regions of the first region 207a1 and the second region 207a2 indicate the area when viewed from the attachment surface side of the camera body 100 (when viewed along the X direction).

[0060] The terminal avoidance area 207b includes the connection area between the connection terminal 105a of the camera body 100 and the connection terminal 202 of the cooling accessory 200. Therefore, the cooling accessory 200 can be attached to the camera body 100 even when the various terminal cables are connected to the camera body 100 and the rear display unit 101 is turned on.

[0061] Figure 7B It is along Figure 7A The cross-sectional view taken from line AA in the diagram. Figure 7B A main body duct is shown, extending from the main body air intake and exhaust port 125a to the main body air intake and exhaust port 126a in the camera body 100, and a cooling duct 207a extending through the connected accessory air intake and exhaust port 204a to the accessory air intake and exhaust port 205a. The cooling duct 207a is configured to avoid the terminal cover avoidance area (interference area) 207d in a manner that does not cause interference when the terminal cover 105 is open.

[0062] exist Figure 7BIn this diagram, the flow direction of fluids such as air flowing through the various intake and exhaust ports is indicated by arrow F. For example, when the fan 208, located in front of the accessory intake and exhaust port 205a, rotates to exhaust air from the accessory intake and exhaust port 205a, flow paths Fa, Fb, Fc, and Fd are formed. Flow path Fa is the flow path for air drawn in from the main intake and exhaust port 125a. Flow path Fb is the flow path passing through the accessory intake and exhaust port 204a. Flow path Fc is the flow path for exhausting air from the accessory intake and exhaust port 205a. Flow path Fd is the flow path formed by the flow path Fb passing through the accessory intake and exhaust port 204a.

[0063] At this time, the fan 208 is arranged such that the direction of the airflow path Fc for exhausting air from the accessory air intake and exhaust port 205a is perpendicular to the direction of the airflow path Fb passing through the accessory air intake and exhaust port 204a. By placing the fan 208 in this way, even when the cooling accessory 200 is attached to the camera body 100, the increase in size of the imaging system 10 in the X direction (horizontal direction) can be suppressed. The airflow path Fc, which is drawn in and exhausted from the accessory air intake and exhaust port 205a by the fan 208, forms towards the top surface (Y direction) of the camera body 100. Therefore, when the user looks at the viewfinder 119 of the camera body 100 and holds its bottom surface, it is prevented that the air intake or exhaust is directed towards the user.

[0064] Therefore, the cooling accessory 200 can be attached to the side (YZ plane) of the camera body 100. The cooling accessory 200 can be attached to the side of the camera body 100 in a manner that avoids the terminal area of ​​the camera body 100 (the area where terminal portions 105a to 105e are arranged). The cooling accessory 200 can be attached to the side of the camera body 100 in a manner that avoids the movable area (accommodation area 207c) of the rear display unit 101 of the camera body 100. The cooling accessory 200 can be attached in a manner that avoids the interference area (terminal cover avoidance area 207d) with the terminal cover 128 when the terminal cover 128 for protecting the terminal area of ​​the camera body 100 is open. The side of the camera body 100 can be the side of the camera body 100 that faces each other in the horizontal direction (X direction) and is opposite to the grip portion 121. The fan 208 can be configured to draw in fluid from the bottom surface of the camera body 100 and discharge fluid from the side surface of the camera body 100 into the cooling pipe 207a, and discharge the drawn-in fluid from the top surface of the cooling accessory 200.

[0065] In this embodiment, the flow direction can be reversed by controlling the fan 208. That is, a flow path can be formed in which air is drawn in from the accessory air inlet and exhaust port 205a and discharged from the main body air inlet and exhaust port 125a.

[0066] Figure 8A This is a front view of the camera system 10 with the cooling accessory 200 attached to the camera body 100. Figure 8B It is along Figure 8A The cross-sectional view taken from line BB in the diagram. Figure 8B The interior of the cooling pipe 207a of the accessory body 207 is shown.

[0067] As described above, the cooling duct 207a has a cutout shape including a terminal avoidance region 207b and a receiving region 207c for the rear display unit 101. The main body air intake and exhaust port 126a and the accessory air intake and exhaust port 204a are arranged in the region between the terminal avoidance region 207b and the receiving region 207c for the rear display unit 101. The main body air intake and exhaust port 126a and the accessory air intake and exhaust port 204a are openings with a longitudinal shape (a generally rectangular shape whose length in the Y direction is longer than its length in the Z direction) extending in the height direction (Y direction) of the camera body 100. At least one of the fans 208 is arranged to overlap with the openings of the main body air intake and exhaust port 126a and the accessory air intake and exhaust port 204a in the longitudinal direction (Y direction). That is, when viewed from the X direction, at least a portion of the fan 208 is positioned on a line extending in the Y direction through the opening of the accessory air intake and exhaust port 204a. Therefore, the ventilation resistance of the flow path Fd formed by the fan 208 at the main air intake and exhaust port 126a and the accessory air intake and exhaust port 204a can be reduced, and the loss of flow can be suppressed.

[0068] Figure 9 It is along Figure 7A The diagram shows a cross-sectional view taken by line CC, and also shows the cross-section of the heat dissipation member 203 of the cooling accessory 200. When the cooling accessory 200 is attached to the camera body 100, the heat dissipation member 203 contacts the belt loop 127 of the camera body 100. As described above, the belt loop 127 is connected to the metal housing or external component of the camera body 100, and when the camera body 100 generates heat during activities such as capturing moving images, the heat is transferred to the heat dissipation member 203 of the cooling accessory 200 via the belt loop 127. The heat dissipation fins 203a of the heat dissipation member 203 are arranged below the fan 208 and can be cooled by air through the flow path formed by the fan 208.

[0069] Figure 10 It is along Figure 8A The cross-sectional view taken from line BB in the diagram shows the intersection with... Figure 8BThis is another structural example that differs from the previous one. For instance, if the rear display unit 101 mounted on the camera body 100 is not of the openable / closeable type (in the case where the rear display unit 101 is fixed to the camera body 100), the receiving area 207c for the rear display unit 101 is unnecessary in the cooling duct 207a of the accessory body 207. This structural example illustrates a case where the accessory body 207 does not include the receiving area 207c.

[0070] The cooling duct 207a has a cutout shape that includes only the terminal portion avoidance area 207b, and the internal space of the cooling duct 207a can be increased compared to a structure that includes the aforementioned receiving area 207c. Therefore, the ventilation resistance of the flow path Fb formed by the fan 208 at the main body air intake and exhaust port 126a and the accessory air intake and exhaust port 204a can be reduced, and flow loss can be suppressed.

[0071] The cooling accessory of this embodiment maintains portability even when attached to electronic devices such as camera equipment, suppresses effects such as vibration without increasing the height of the camera optical axis, and ensures a proper flow path for the air blowing unit to enhance cooling performance. Therefore, this embodiment provides a cooling accessory with improved user convenience.

[0072] While this disclosure has been described with reference to embodiments, it should be understood that this disclosure is not limited to the disclosed embodiments. The scope of the appended claims should be given the broadest interpretation to cover all such modifications and equivalent structures and functions.

Claims

1. A cooling accessory capable of being attached to an electronic device, the cooling accessory comprising: The outer surface has a first air inlet and an air outlet configured to draw in and expel fluid from inside the electronic device; Cooling pipe through which the fluid flows; as well as A cooling unit is disposed inside the cooling pipe. The cooling unit is characterized in that it is configured to allow the fluid to move between the interior of the electronic device and the interior of the cooling pipe through the first air inlet and outlet. Wherein, the first air intake and exhaust ports have a shape that is longer in the second direction than in the first direction in the in-plane direction of the outer surface. The cooling pipe includes a first region and a second region arranged closer to the cooling unit than the first region. The first region in the first direction is narrower than the second region in the first direction.

2. The cooling accessory according to claim 1, characterized in that, When viewed from a third direction perpendicular to both the first and second directions, at least a portion of the cooling unit is arranged at a position along the second direction from the first air intake and exhaust ports.

3. The cooling accessory according to claim 1, characterized in that, The cooling unit is a fan configured to form a flow path for fluid flowing through the cooling pipe in the second direction.

4. The cooling accessory according to claim 1, characterized in that, The cooling conduit includes a second air inlet and an exhaust outlet having a normal direction as the second direction. The cooling unit is configured to draw in and discharge fluid from inside the cooling pipe between the first air intake and exhaust port and the second air intake and exhaust port, wherein the first air intake and exhaust port has a normal direction as a third direction perpendicular to the first direction and the second direction.

5. The cooling accessory according to claim 1, further comprising: Heat dissipation components are arranged inside the cooling pipes. The feature is that the heat dissipation component dissipates the heat of the electronic device to the heat dissipation component by contacting a metal component of the electronic device to which the cooling accessory is attached.

6. The cooling accessory according to claim 5, characterized in that, The metal component is a ring.

7. The cooling accessory according to claim 1, further comprising: The second connection terminal is capable of being connected to the first connection terminal of the electronic device. The feature is that, when the second connection terminal is connected to the first connection terminal, the cooling accessory obtains drive power and control signals for the cooling unit from the electronic device via the second connection terminal.

8. The cooling accessory according to claim 7, characterized in that, The second connection terminal is disposed on the outer surface.

9. The cooling accessory according to claim 1, further comprising: A fixing member that is fixed to a first hole in the electronic device when the cooling accessory is attached to the electronic device.

10. The cooling accessory according to claim 1, further comprising: A fixing member is fixed to the second hole in the mounting accessory that can be attached to the tripod base of the electronic device.

11. The cooling accessory according to claim 1, characterized in that, The cooling accessory can be attached to the side of the electronic device.

12. The cooling accessory according to claim 11, characterized in that, The cooling accessory can be attached to the side of the electronic device in a manner that avoids the terminal area of ​​the cables to be connected to the electronic device.

13. The cooling accessory according to claim 11, characterized in that, The cooling attachment can be attached to the side of the electronic device in a manner that avoids the movable area of ​​the movable display unit of the electronic device.

14. The cooling accessory according to claim 11, characterized in that, The cooling accessory can be attached to the side of the electronic device in a manner that avoids interference with the terminal cover when the terminal cover used to protect the terminal area of ​​the electronic device is open.

15. The cooling accessory according to claim 11, characterized in that, The side of the electronic device is the side of the electronic device that faces each other in the horizontal direction and is opposite to the grip portion of the electronic device.

16. The cooling accessory according to any one of claims 1 to 15, characterized in that, The cooling unit is configured to draw air that has been drawn in from the bottom surface of the electronic device and discharged from the side surface of the electronic device into the cooling duct, and to discharge the air from the top surface of the cooling accessory.

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