Electronic equipment, cooling devices, and cooling systems

Abstract

To provide an electronic device that can suppress condensation with a simple configuration. [Solution] An electronic device (100) to which a cooling device (200) can be attached and detached comprises electronic components (131, 133), a heat dissipation section (135) that receives heat from the electronic components, and an insertion section (124) into which a heat receiving section (203) of the cooling device can be inserted. At least a portion of the heat dissipation section is exposed inside the insertion section, and when the heat receiving section is inserted into the insertion section, the heat dissipation section is configured to be thermally connected to the heat receiving section.

Description

Technical Field

[0005]

[0001] The present invention relates to an electronic device, a cooling device, and a cooling system.

Background Art

[0002] Conventionally, a heat dissipation configuration for suppressing the temperature rise of an electronic device is known. Patent Document 1 discloses a configuration in which a refrigerant from a cooling unit is circulated and the housing of the electronic device is cooled by the refrigerant. Patent Document 2 discloses a configuration in which a radiator of a cooling unit is arranged on an exhaust path from an exhaust port of a portable information device in a state where the portable information device is connected to the cooling device.

Prior Art Documents

[0007] Other objects and features of the present invention are described in the following embodiments. [Effects of the Invention]

[0008] According to the present invention, it is possible to provide an electronic device that can suppress the occurrence of condensation with a simple configuration. [Brief explanation of the drawing]

[0009] [Figure 1(a)] This is an external view (front perspective view) of the camera body in this embodiment. [Figure 1(b)] This is an external view (rear perspective view) of the camera body in this embodiment. [Figure 1(c)] This is a cross-sectional view of the camera body in this embodiment. [Figure 2] These are external views and cross-sectional views of the cooling device in this embodiment. [Figure 3] This is a schematic diagram of the imaging system in this embodiment. [Figure 4] This is a block diagram of the imaging system in this embodiment. [Figure 5(a)] This is a cross-sectional view of the duct in the camera body of this embodiment, with the cooling device not attached. [Figure 5(b)] This is a cross-sectional view of the duct with the cooling device attached to the camera body in this embodiment. [Figure 5(c)] This is a cross-sectional view of the duct in a modified state of this embodiment, where the cooling device is not attached to the camera body. [Figure 5(d)]This is a cross-sectional view of the duct with a cooling device attached to the camera body, as a modified example of this embodiment. [Figure 5(e)] This is a cross-sectional view of the duct of the camera body in this embodiment. [Figure 6] This is a cross-sectional view of a cooling device as a modified example of this embodiment. [Modes for carrying out the invention]

[0010] Embodiments of the present invention will be described in detail below with reference to the drawings.

[0011] First, the camera body (imaging device, electronic equipment) 100 in this embodiment will be described with reference to Figures 1(a) to 1(c). Figure 1(a) is an external view (front perspective view) of the camera body 100. Figure 1(b) is an external view (rear perspective view) of the camera body 100. Figure 1(c) is a cross-sectional view of the camera body 100, showing the shape of the camera body 100 cut in half along the optical axis.

[0012] The display unit 101, located on the rear of the camera body 100, is mounted to the camera body 100 so as to be openable and rotatable, and displays images generated by imaging and various information related to imaging. The display unit 101 is equipped with a touch panel and can detect user touch operations on its display surface (operating surface). The viewfinder-external display unit 102, located on the top of the camera body 100, can display the set values ​​of various imaging parameters such as shutter speed and aperture.

[0013] The shutter button 103 is an operating member that the user operates when instructing the camera body 100 to capture an image. The mode switch 104 is an operating member that the user operates when switching between various modes. The terminal cover 105 is a cover that protects the connector to which a connection cable extending from an external device is connected. The main electronic dial 106 is an operating member that the user rotates to change the set value of imaging parameters. The power switch 107 is an operating member that the user operates when switching the ON / OFF of the power of the camera body 100. The sub electronic dial 108 is an operating member that the user operates to move a selection frame such as a distance measurement (AF: autofocus) frame or to perform image scrolling.

[0014] On the back of the camera body 100, a multi-controller 109 is provided. The multi-controller 109 is configured to enable input by a pushing operation of the key top and tilting operations in the up, down, left, right, and diagonal directions. By the user operating the multi-controller 109, it is possible to move the selection frame or select items in various menus.

[0015] The rear electronic dial 110 is an operating member that the user operates to move the selection frame or to perform image scrolling. The rear electronic dial 110 is arranged at a position where it is easy for the user to operate intuitively while reproducing the captured image on the display unit 101, and is also easy to operate even when the user holds the camera body 100 vertically.

[0016] A SET button 111 is provided at the center of the rear electronic dial 110. The SET button 111 is an operating member as a push button that the user operates when determining a selected item or the like.

[0017] The video button 112 is an operating element that the user operates to start and stop video recording. The button group 113 is an operating element related to focus and exposure, and includes an AF start button, an AE lock button, and an AF frame selection button arranged horizontally. By pressing these buttons 113 in the image capture standby state, the user can start AF, change the AF frame, or fix the exposure.

[0018] The button group 114 includes L-shaped zoom in / out buttons, information display buttons, and quick setting buttons. In the imaging mode, the user can switch the zoom in / out function on or off by operating the zoom in / out buttons in live view display mode. Similarly, in playback mode, the user can switch the zoom in / out function on or off by operating the zoom in / out buttons in playback mode.

[0019] By operating the information display button, the user can switch the display method of the information shown on the display unit 101. By operating the quick setting button, the user can quickly switch the display on the display unit 101 to the screen for changing the setting values ​​of the imaging parameters.

[0020] The button group 115 includes a play button and an erase button. By operating the play button, the user can switch between imaging mode and playback mode. When the play button is operated in imaging mode, the system switches to playback mode, and the most recent image captured from the images recorded on the media (not shown) can be displayed on the display unit 101. In playback mode, the user who has selected an image can erase the selected image by operating the erase button.

[0021] The button group 116 includes a menu button and a rating button. When the user operates the menu button, a menu screen displaying configurable items is displayed on the display unit 101. The user can intuitively select items and make settings by touching the menu screen displayed on the display unit 101, or by operating the multi-controller 109, the rear electronic dial 110, or the SET button 111. In playback mode, the user can rate the playback image by operating the rating button.

[0022] A replacement lens (lens device) (not shown) is detachably attached to the mount portion 117 of the camera body 100. A communication terminal 118 provided inside the mount portion 117 is used for communication between the camera body 100 and the replacement lens.

[0023] The viewfinder 119, located on the upper rear of the camera body 100, is an electronic viewfinder that allows the user to view a live view image or the like when looking through it. The viewfinder 119 is equipped with an eyepiece detection unit, which allows it to detect when the user is looking through (looking through) the viewfinder 119. The eyepiece cover 121 is a rubber material that comes into contact with the face around the user's eye when they look through the viewfinder 119.

[0024] The grip portion 122 is a gripping portion that has a shape that makes it easy for the user to hold the camera body 100 with their right hand. The card cover 123 is a cover that covers the media slot 153 in which media is stored. The card cover 123 is provided on the part of the grip portion 122 where the user's palm rests.

[0025] The storage compartment of the camera body 100, to which the display unit 101 is attached, is provided with a duct (insertion part) 124, which is a space independent of the interior of the camera body 100. The duct 124 is an air duct, wind conduit, ventilation pipe, air passage, or space area, and has a shape such as a roughly rectangular parallelepiped, but is not limited to these. Openings 126 for the duct 124 are formed on the side and bottom of the camera body 100. The duct 124 penetrates from the bottom of the camera body 100 to the side having the terminal cover 105. The accessory heat receiving part 203 of the external cooling accessory 200, described later, can be inserted into the duct 124 through the openings 126. Also, air can enter and exit (air can pass through) the duct 124 through the openings 126.

[0026] A tripod mount 125 is provided on the bottom of the camera body 100. The tripod mount 125 is a mounting component used when attaching external accessories to the bottom surface of the camera body 100.

[0027] Referring to Figure 1(c), the internal configuration of the camera body 100 will be described. The first circuit board 130 has an image sensor (electronic component, heat-generating component) 131 such as a CMOS (Complementary Metal-Oxide-Semiconductor) or CCD (Charge Coupled Device), which is a heat source, mounted on it. The second circuit board 132 has an electronic component (heat-generating component) 133 such as a CPU (Central Processing Unit) 133a or DRAM (Dynamic Random Access Memory), which is a heat source, mounted on it.

[0028] A first heat transfer member 134, made of a highly thermally conductive material such as aluminum sheet metal, copper sheet metal, or heat pipe, is positioned between the first circuit board 130 and the second circuit board 132. The image sensor 131 of the first circuit board 130 and the first heat transfer member 134 are thermally connected by a heat transfer material, such as a heat dissipation rubber or graphite sheet (not shown). The heat from the image sensor 131 of the first circuit board 130 is transferred to the first heat transfer member 134 via a heat transfer material (not shown).

[0029] A main body heat dissipation section (heat dissipation section) 135 is positioned opposite the second circuit board 132. The main body heat dissipation section 135 is made of a high thermal conductivity material and preferably has a relatively large heat capacity so that it can store heat from the electronic components 133 and the image sensor 131. At least a portion of the main body heat dissipation section 135 is positioned to be exposed inside the duct 124. The inside of the duct 124 is configured to allow ambient air to flow in, and the main body heat dissipation section 135 exposed inside the duct 124 is configured to be able to exchange heat with the incoming air (to be able to exhaust heat). The camera body 100 is configured to be able to accommodate a fan. When a fan is attached, it is possible to forcibly circulate air inside the duct 124, and the main body heat dissipation section 135 can be cooled by the fan.

[0030] In this embodiment, the main body heat dissipation section 135 may form one surface of the inner wall of the duct 124, or a part of the main body heat dissipation section 135 may be exposed through an opening provided in the inner wall of the duct 124. The duct 124 is formed as a separate space isolated from the inside of the camera body 100. The connection between the main body heat dissipation section 135 and the duct 124 is preferably sealed using a sealing member (not shown). This prevents foreign matter such as dust from entering the inside of the camera body 100.

[0031] In this embodiment, the camera body 100 has its main body heat dissipation section 135 located inside the duct 124, which is the location with the best heat dissipation efficiency by thermally connecting the heat of the electronic components 133 along the shortest path and over a large area.

[0032] The heat dissipation section 135 of the main body, to which the heat from the electronic component 133 is transferred, is separated from the main body exterior 137 by a duct 124, so that the air inside the duct 124 acts as an insulating layer. As a result, heat from the heat dissipation section 135 is less likely to be transferred to the main body exterior 137, and the main body exterior 137 does not get hot easily. Therefore, it is possible to prevent the user from feeling uncomfortable by touching the heat-generating part when operating the camera body 100.

[0033] One end of the third heat transfer member 138 is thermally connected to the first heat transfer member 134, and the second heat transfer member 136 is thermally connected to the electronic component 133. The other ends of the second heat transfer member 136 and the third heat transfer member 138 are thermally connected to the main body heat dissipation section 135. This allows heat from the heat source, the image sensor 131 or the electronic component 133, to be transferred to the main body heat dissipation section 135.

[0034] The second heat transfer member 136 and the third heat transfer member 138 are preferably made of a material with high thermal conductivity, such as sheet metal, graphite, heat pipe, or vapor chamber. The second heat transfer member 136 and the third heat transfer member 138 may each be composed of two or more members.

[0035] With this configuration, heat from the image sensor 131 or electronic component 133 is transported towards the main unit heat dissipation section 135. When the external cooling accessory 200 described later is not attached, heat is dissipated to the outside air from the main unit heat dissipation section 135, which is exposed inside the duct 124. As a result, even when the external cooling accessory 200 is not attached, the heat from the image sensor 131 or electronic component 133 is retained in the main unit heat dissipation section 135, thereby suppressing a rise in the temperature of the image sensor 131 or electronic component 133.

[0036] The opening 126 of the duct 124 may be provided with a grate or mesh that allows air to enter and exit (air to pass through) to prevent foreign matter from entering. In that case, it is preferable to provide a lid 139 that can be opened and closed or removed from the grate or mesh so as not to obstruct the insertion of the external cooling accessory 200 described later into the opening 126 of the duct 124.

[0037] Figures 2(a) and 2(b) are external views and cross-sectional views of the external cooling accessory (cooling device) 200 in this embodiment. Figure 2(a) is a front perspective view of the external cooling accessory 200. Figure 2(b) is a cross-sectional view of the external cooling accessory 200 as seen from the direction of arrow AA in Figure 2(a).

[0038] Referring to Figure 2(a), the external configuration of the external cooling accessory 200 will be described. The external cooling accessory 200 includes an accessory casing (casing part) 201, a tripod screw 202, a heat transport component 209, and an accessory heat receiving part (heat receiving part) 203. The camera body 100 and the external cooling accessory 200 are fixed together by the tripod screw 202. The heat transport component 209 extends from the accessory casing 201a (protrudes to the outside of the accessory casing 201a).

[0039] The heat transport component 209 has an accessory heat receiving section 203 that, when attached to the camera body 100, is thermally connected to the main body heat dissipation section 135 inside the duct 124. The accessory heat receiving section 203 is made of a highly thermally conductive heat dissipation rubber, or a metal material mainly composed of aluminum or copper (an elastic, highly thermally conductive material), placed on the heat transport component 209. As a result, heat from the camera body 100 is transferred to the heat transport component 209 via the accessory heat receiving section 203.

[0040] The accessory heat receiving section 203 of the external cooling accessory 200 can be inserted into the duct 124 of the camera body 100. When the accessory heat receiving section 203 is inserted into the duct 124, the accessory heat receiving section 203 is configured to be thermally connected to the main body heat dissipation section 135 that receives heat from the electronic components of the camera body 100.

[0041] Here, the thermal connection between the first member (e.g., accessory heat receiving section 203) and the second member (e.g., main body heat dissipation section 135) is not limited to a configuration in which the first member and the second member are physically directly connected. It includes a configuration in which heat can be transferred between the first member and the second member (a state in which heat conduction is possible), and the first member and the second member are connected to each other (indirectly connected) via other members (such as heat conducting members).

[0042] In this embodiment, the heat transport component 209 is in the shape of a single sheet metal, but it is not limited to this, and two or more sheet metal components or heat transport components such as heat pipes may be combined.

[0043] Referring to Figure 2(b), the internal configuration of the external cooling accessory 200 will be described. In addition to the heat transport component 209, the external cooling accessory 200 includes a heat sink (heat diffusion section) 205 inside the containment container 204 that houses the refrigerant 206.

[0044] The heat sink 205 is constructed by fixing multiple sheet metal plates in parallel to the heat sink fixing part 207. The heat transport component 209 and the heat sink 205 are fixed by a thermal connection part 210. The thermal connection part 210 may be soldered or screwed in. The heat sink 205 and the heat sink fixing part 207 are thermally connected. Also, the heat sink fixing part 207 and the heat transport component 209 are thermally connected. As a result, heat from the camera body 100 is transferred to the heat sink 205 (container 204) via the heat transport component 209, and heat exchange with the refrigerant 206 is possible.

[0045] In this embodiment, the accessory heat receiving section 203, the heat transport component 209, and the heat sink 205 are separate parts, but this is not the only option. At least two of the accessory heat receiving section 203, the heat transport component 209, and the heat sink 205 may be integrally formed rather than being separate parts.

[0046] The heat transport component 209 is mounted so as to penetrate the accessory casing 201. The heat connection portion 210 is mounted so as to penetrate the containment vessel 204 and has a liquid sealing portion 208 to prevent the refrigerant 206 inside the containment vessel 204 from leaking out of the containment vessel 204.

[0047] In this embodiment, the accessory heat receiving section 203, the heat transport component 209, and the storage container 204 that houses the heat sink 205 and refrigerant 206 are configured as an integrated refrigerant unit 212. The refrigerant unit 212 is movable in the left-right direction in Figure 2(b). For this reason, an elastic member 211 that biases to the right in Figure 2(b) is positioned between the storage container 204 and the accessory casing 201.

[0048] The containment vessel 204 is filled with a refrigerant 206, and the heat from the heat sink 205 is transferred to the refrigerant 206. The containment vessel 204 may be made of a resin material or a metal material mainly composed of magnesium or aluminum. Furthermore, since the containment vessel 204 is always in contact with the refrigerant 206, it is preferable that it be made of a rust-resistant material or has a coating.

[0049] Similarly, since the heat sink 205 is constantly in contact with the coolant 206 inside the containment vessel 204, it is preferable that it be made of a material with high thermal conductivity and is resistant to rust, or has a rust-resistant coating.

[0050] The containment vessel 204 is preferably configured to be thermally connected to the accessory exterior 201. This allows heat from the refrigerant 206, heated by the heat sink 205, to be transferred from the containment vessel 204 to the accessory exterior 201, enabling heat dissipation into the atmosphere through radiation and convection from the surface of the accessory exterior 201.

[0051] The material of the accessory casing 201 is preferably a high thermal conductivity material such as magnesium or aluminum, rather than a resin material with low thermal conductivity. This allows for more efficient heat dissipation from the surface of the accessory casing 201 into the atmosphere. On the other hand, when the ambient temperature is high, an insulating structure is preferable for the casing to prevent the refrigerant from becoming overheated due to heat from the surroundings.

[0052] The heat sink 205 can efficiently transfer more heat to the refrigerant 206 by increasing its surface area. The heat sink 205 has multiple fins (protrusions). The shape of each of the multiple fins, such as the pitch or length, can be appropriately changed to be optimal according to the size of the containment vessel 204 or the type of refrigerant 206. The heat sink 205 may have multiple fins arranged perpendicular to the heat sink fixing part 207, or it may have multiple cylindrical columns arranged in a row.

[0053] If the refrigerant 206 is a liquid that expands in volume due to solidification, like water, it is preferable to put a smaller amount of refrigerant 206 into the containment container 204 to account for the expansion due to solidification. This prevents damage to the external cooling accessory 200 that may occur when the refrigerant 206 solidifies and expands at low temperatures.

[0054] The refrigerant 206 may be water, or a refrigerant with a low freezing point such as ethylene glycol may be used. The refrigerant 206 in the containment vessel 204 may be non-replaceable or may be configured to be replaceable. Making the refrigerant 206 replaceable improves convenience, as the containment vessel 204 can be emptied when the refrigerant 206 is not needed, such as during transport.

[0055] Figures 3(a) and 3(b) are schematic diagrams of the imaging system (cooling system) 10 configured by attaching the camera body 100 and the external cooling accessory 200 according to this embodiment. Figure 3(a) is a front perspective view of the camera body 100 and the external cooling accessory 200. Figure 3(b) is a cross-sectional view of the camera body 100 and the external cooling accessory 200, showing a cross-section on the same plane as in Figure 2(b).

[0056] Referring to Figure 3(a), the external configuration of the camera body 100 and the external cooling accessory 200 in their attached state will be described. The external cooling accessory 200 is detachably attached to the bottom surface of the camera body 100, and the camera body 100 and the external cooling accessory 200 are fixed together by the tripod mount 125 of the camera body 100 and the tripod screw 202 of the external cooling accessory 200.

[0057] Referring to Figure 3(b), the internal configuration of the camera body 100 and the external cooling accessory 200 when attached will be described. When the external cooling accessory 200 is attached to the camera body 100 by the tripod screw 202, the heat dissipation part 135 of the camera body 100 and the accessory heat receiving part 203 of the external cooling accessory 200 come into contact with each other. As a result, heat from the camera body 100 is transferred to the external cooling accessory 200.

[0058] Unlike typical circulating water cooling systems, this embodiment does not directly transfer the cooled refrigerant to the heat-generating parts. Instead, it transfers the heat from the camera body 100 to an external cooling accessory 200 for cooling. This prevents the image sensor 131 and electronic components 133 from cooling down too rapidly, reducing the possibility of condensation on them. Furthermore, it eliminates the need for pumps, power supplies, and refrigerant circulation tubes required in circulating water cooling systems, resulting in a simpler configuration.

[0059] Next, the process of heat transfer will be described in detail. Heat from the image sensor 131 and electronic components 133 of the camera body 100 is transferred to the main body heat dissipation section 135 by the first heat transfer member 134. When the external cooling accessory 200 is attached to the camera body 100, the heat transport component 209 of the external cooling accessory 200 is inserted into the duct 124 of the camera body 100. At this time, the main body heat dissipation section 135 exposed inside the duct 124 and the accessory heat receiving section 203 come into contact, and heat from inside the camera body 100 is transferred to the accessory heat receiving section 203 of the external cooling accessory 200. The heat transferred to the accessory heat receiving section 203 is transferred to the heat sink 205, and from the heat sink 205 to the coolant 206. The heat from the coolant 206 is transferred from the containment container 204 to the accessory casing 201, and the heat is dissipated into the atmosphere from the surface of the accessory casing 201. This makes it possible to suppress the temperature rise of the image sensor 131 or electronic component 133 of the camera body 100, thereby extending the shooting time.

[0060] In this embodiment, the main body heat dissipation section 135 absorbs heat from the image sensor 131 on the first circuit board 130 and the electronic component 133 on the second circuit board 132 via the second heat transfer member 136 and the third heat transfer member 138. Unlike typical circulating water cooling systems, it does not directly transfer cooled refrigerant to the heat-generating parts. Therefore, it is less likely that only the image sensor 131 or the electronic component 133, which are heat sources inside the camera body 100, will cool down rapidly, and the possibility of condensation on the image sensor 131 or the electronic component 133 can be reduced. In addition, since it does not require a pump, power supply, or refrigerant circulation tubes, which are necessary for circulating water cooling systems, it results in a simpler configuration with various advantages in terms of size, cost, and convenience. As a result, even when the external cooling accessory 200 is not attached, it is possible to reduce the accumulation of heat in the main body heat dissipation section 135, which can make it difficult for the image sensor 131 or the electronic component 133 to cool down.

[0061] On the other hand, when the external cooling accessory 200 is attached to the camera body 100, heat is transferred to the cooler side, so the heat from the camera body 100 is transferred to the external cooling accessory 200, which helps to suppress the rise in the temperature of the camera body 100.

[0062] Inside the container 204 for the external cooling accessory 200, a cooling means such as a Peltier element, a fan, or a cooling rod that thermally connects the external air and the refrigerant 206 may be provided separately. The cooling means can lower the temperature of the refrigerant 206, making it possible to further lower the temperature of the camera body 100.

[0063] The external cooling accessory 200 may be provided with a body cover storage compartment (not shown) capable of storing the body cover (not shown) removed from the camera body 100. This improves convenience by allowing the user to store the removed body cover when removing it from the camera body 100 to attach the external cooling accessory 200.

[0064] In Figure 3(b), the external cooling accessory 200 is attached to the bottom surface of the camera body 100, but this embodiment is not limited to this. The accessory heat receiving section 203 only needs to be inserted into the duct 124, and the external cooling accessory 200 may be attached to a location other than the bottom surface of the camera body 100. For example, if the camera body 100 has openings for the duct 124 not only on the bottom surface (Y direction) but also on the side surface (X direction), the external cooling accessory 200 may be attached to the side surface.

[0065] Figure 4 is a block diagram of an imaging system 10 equipped with a camera body 100 and an external cooling accessory 200. The CPU (Central Processing Unit) 133a is a control unit that controls the operation of the entire camera body 100 and executes various processes and instructions to each circuit section. Various electronic components 133, including the CPU 133a, which is one of the heat-generating components, are mounted on the second circuit board 132. The second circuit board 132 is a printed wired board (PWB) and many of the various electrical circuits (detection circuits, control circuits, processing circuits), such as the camera microcontroller, are mounted on it. The CPU 133a controls each functional block of the camera body 100 and performs the necessary calculations according to the computer program loaded from memory. The power supply 150 supplies power to each circuit section within the camera body 100.

[0066] The image sensor 131 is composed of a CCD sensor or a CMOS sensor and converts the optical image of the subject captured by the image sensor 131 into an image signal. The image signal obtained by the image sensor 131 is converted into image data by the image processing unit 151 and output to the CPU 133a. A shutter 156 is located in front of the image sensor 131 and adjusts the exposure time of the image sensor 131. The shutter control unit 154 drives the shutter 156 based on a signal input from the CPU 133a.

[0067] When the mode selector switch 104 is operated by the user, the operation detection unit 157 outputs a signal to the CPU 133a to change shooting conditions such as exposure and shutter speed.

[0068] The external cooling accessory 200, like the camera body 100, is equipped with an operating member 252 for setting various shooting conditions of the camera body 100. Signals from the operating member 252 are transmitted to the connection terminal 155 of the camera body 100 and the CPU 133a on the second circuit board 132 via the control board 250 and connection terminal 251.

[0069] The camera body 100 allows the user to select a desired video recording mode from several available modes by operating the mode switch 104. These modes include, for example, a high-quality mode and a low-quality mode. When recording video in high-quality mode, the processing load on the image sensor 131 and CPU 133a is high, resulting in increased heat generation from the electronic component 133 and the media slot 153, thus shortening the video recording time. Conversely, in low-quality mode, the heat generated by the electronic component 133 is lower compared to high-quality mode, resulting in a longer video recording time.

[0070] Next, the internal configuration of the duct 124 in this embodiment will be described with reference to Figures 5(a) and 5(b). Figure 5(a) is a cross-sectional view of the duct 124 when the camera body 100 is not fitted with the external cooling accessory 200. In Figure 5(a), the lower cross-sectional view is a view from the direction of arrow BB in the upper perspective view. Figure 5(b) is a cross-sectional view of the duct 124 when the camera body 100 is fitted with the external cooling accessory 200. In Figure 5(b), the lower cross-sectional view is a view from the direction of arrow CC in the upper perspective view.

[0071] As described above, when the external cooling accessory 200 is attached to the camera body 100 by the tripod screw 202, the heat transport component 209 of the external cooling accessory 200 is inserted into the duct 124. As a result, the main body heat dissipation section 135 and the accessory heat receiving section 203 come into contact with each other, transferring heat from the camera body 100 to the accessory heat receiving section 203, and then from the heat transport component 209 to the coolant 206 via the heat sink 205.

[0072] The larger the contact area between the main unit heat dissipation section 135 and the accessory heat receiving section 203, the lower the thermal resistance and the better the cooling performance. To maximize the cooling effect, it is preferable to ensure that the contact area between the main unit heat dissipation section 135 and the accessory heat receiving section 203 is as close as possible when the external cooling accessory 200 is attached, thereby minimizing thermal resistance and achieving thermal connection.

[0073] Figures 5(a) and 5(b) show a configuration in which a leaf spring (elastic member) 505 is attached to the inner wall on the outer side of the duct 124 to ensure close contact between the main body heat dissipation section 135 and the accessory heat receiving section 203 over as wide an area as possible. The leaf spring 505 functions as a pressing part that presses the accessory heat receiving section 203 against the main body heat dissipation section 135. As a result, when the heat transport component 209 of the external cooling accessory 200 is inserted into the duct 124, the accessory heat receiving section 203 of the heat transport component 209 is pressed against the main body heat dissipation section 135, promoting heat exchange between the main body heat dissipation section 135 and the accessory heat receiving section 203.

[0074] Next, with reference to Figures 5(c) and 5(d), the internal configuration of the duct 124 of the camera body (electronic device) 500 as a modified example of this embodiment will be described. Figure 5(c) is a cross-sectional view of the duct 124 when the camera body 500 is not fitted with the external cooling accessory 200. In Figure 5(c), the lower cross-sectional view shows the view from the direction of arrow DD in the upper perspective view. Figure 5(d) is a cross-sectional view of the duct 124 when the camera body 500 is fitted with the external cooling accessory 200. In Figure 5(d), the lower cross-sectional view shows the view from the direction of arrow EE in the upper perspective view.

[0075] Figures 5(c) and 5(d) show a configuration in which a slope-shaped protrusion (projection) 501 is provided on the inner wall of the exterior side of the duct 124, and the protrusion increases as it extends in the depth direction from the opening 126 of the duct 124. The protrusion 501 is a pressing part that presses the accessory heat receiving part 203 against the main body heat dissipation part 135 with increasing force as the amount of insertion of the accessory heat receiving part 203 into the duct 124 increases.

[0076] In this case, it is preferable to provide slope-shaped portions 502 on the accessory heat receiving portion 203 and the heat transport component 209 that come into contact with the slope-shaped protrusion 501 when the external cooling accessory 200 is attached. This configuration prevents damage caused by collision between the corners of the slope-shaped protrusion 501 and the accessory heat receiving portion 203 and the heat transport component 209.

[0077] Figure 5(e) is a cross-sectional view of the duct 124 of the camera body 100 (500) as seen from the Z direction. In Figure 5(e), the lower cross-sectional view shows the view from the direction of the arrow FF in the upper perspective view. The forced airflow 503 generated when the fan is installed indicates the airflow inside the duct 124. If the airflow 503 is obstructed, the cooling performance of the camera body 500 will decrease. For this reason, it is preferable to place the aforementioned leaf spring 505 or slope-shaped protrusion 501 outside the airflow 503, that is, in a region 504 where the flow velocity is relatively slow, so as not to obstruct the airflow 503. For example, the inside of the duct 124 is provided with a first region where the airflow velocity is faster than a predetermined velocity and a second region (region 504) where the airflow velocity is slower than a predetermined velocity, and it is preferable that the leaf spring 505 or protrusion 501 is placed in the second region. The second region is, for example, the vicinity of the corners (corners) in the rectangular cross-section of the duct 124, as shown in region 504 in Figure 5(e).

[0078] To avoid obstructing the airflow inside the duct 124, magnets (pressing parts) can be installed on the inner wall of the duct 124 and the accessory heat receiving section 203 or heat transport component 209, and the accessory heat receiving section 203 can be pressed against the main body heat dissipation section 135 by the attractive or repulsive force of the magnets. Since the magnets can be embedded in the inner wall of the duct 124, they do not obstruct the airflow. When placing magnets on electronic equipment that has elements that are affected by magnetic forces, such as image sensors, it is preferable to place the magnets in a location that avoids the position of elements that may be affected by magnetic forces.

[0079] Next, with reference to Figures 6(a) and 6(b), the configuration of an external cooling accessory (cooling device) 600 as a modified example of this embodiment will be described. Figure 6(a) is a cross-sectional view of the heat transport component 601 of the external cooling accessory 600. In Figure 6(a), the lower cross-sectional view shows the view from the direction of arrow GG in the upper perspective view. Figure 6(b) is a cross-sectional view of the duct 124 with the external cooling accessory 600 attached to the camera body 100. In Figure 6(b), the lower cross-sectional view shows the view from the direction of arrow HH in the upper perspective view.

[0080] The external cooling accessory 600 has an accessory heat receiving section (heat receiving section) 603 that extends from the accessory casing 600a and is thermally connected to the main body heat dissipation section 135 inside the duct 124 when attached to the camera body 100. The accessory heat receiving section 603 has an elastic member 604 and a pressing member 602.

[0081] As mentioned above, the larger the contact area between the main unit heat dissipation section 135 and the accessory heat receiving section 603, the lower the thermal resistance and the better the cooling performance. To maximize the cooling effect, it is preferable to ensure that the contact area between the main unit heat dissipation section 135 and the accessory heat receiving section 603 is as close as possible with the external cooling accessory 600 attached, thereby minimizing thermal resistance and enabling thermal connection.

[0082] Figures 5(a) to 5(d) show an example of a configuration in which the accessory heat receiving section 203 is in close contact with the main body heat dissipation section 135 of the camera body 100. On the other hand, in Figures 6(a) and 6(b), the main body heat dissipation section 135 and the accessory heat receiving section 603 are in close contact with the heat transport component 601 of the external cooling accessory 600.

[0083] The heat transport component 601 consists of an accessory heat receiving section 603 that is thermally connected to the main body heat dissipation section 135, which is the interior side of the camera body 100; a pressing member 602 that contacts the inner wall of the duct 124, which is the exterior side of the camera body 100; and an elastic member 604. The elastic member 604 is sandwiched between the pressing member 602 and the accessory heat receiving section 603. The thickness of the heat transport component 601, with the pressing member 602, the accessory heat receiving section 603, and the elastic member 604 stacked on top of each other, is greater than the height H1 of the duct 124. As a result, when the heat transport component 601 is inserted into the duct 124, the elastic member 604 is compressed, and the accessory heat receiving section 603 can be pressed tightly against the main body heat dissipation section 135. This promotes heat exchange between the main body heat dissipation section 135 and the accessory heat receiving section 603.

[0084] The pressing member 602 has a shape such that its cross-sectional area gradually increases from the tip in the direction of insertion of the duct 124, in order to prevent damage. The elastic member 604 is an elastic material such as Poron, a heat conductive sheet, or a leaf spring. When it is desirable to actively transfer heat to the exterior of an electronic device such as an imaging device that has a duct, it is preferable to use a heat conductive sheet. On the other hand, when it is not desirable to actively transfer heat, it is preferable to use Poron with an air layer.

[0085] In this embodiment, the material, shape, dimensions, form, number, and placement can be changed as appropriate. Furthermore, although this embodiment describes a camera body as an electronic device, it is not limited to this and can be applied to various electronic devices such as personal computers, tablet terminals, game consoles, drones, automobiles, or their peripherals.

[0086] According to this embodiment, it is possible to provide electronic equipment, a cooling device, and a cooling system that can suppress the occurrence of condensation with a simple configuration.

[0087] This embodiment includes the following configuration. (Composition 1) An electronic device with a detachable cooling device, Electronic components and, A heat dissipation unit that receives heat from the aforementioned electronic component, It has an insertion part into which the heat receiving part of the cooling device can be inserted, At least a portion of the heat dissipation section is exposed inside the insertion section. An electronic device characterized in that, when the heat receiving portion is inserted into the insertion portion, the heat dissipation portion is configured to be thermally connected to the heat receiving portion. (Configuration 2) The electronic device according to configuration 1, characterized in that the insertion portion is into which the heat receiving portion can be inserted and has an opening for air to pass through. (Composition 3) The electronic device according to configuration 2, characterized in that the opening is provided with an openable and closable lid. (Composition 4) The electronic device according to any one of configurations 1 to 3, characterized in that a pressing portion is provided inside the insertion portion for pressing the heat receiving portion against the heat dissipation portion. (Composition 5) The electronic device according to configuration 4, characterized in that the pressing portion is an elastic member. (Composition 6) The electronic device according to configuration 4, characterized in that the pressing portion is a projection that increases the force pressing the heat receiving portion against the heat dissipation portion as the amount of insertion of the heat receiving portion into the insertion portion increases. (Composition 7) The electronic device according to configuration 4, characterized in that the pressing portion is a magnet. (Composition 8) The inside of the insertion portion is provided with a first region where the velocity of the airflow is faster than a predetermined velocity, and a second region where the velocity of the airflow is slower than the predetermined velocity. The electronic device according to any one of configurations 4 to 7, characterized in that the pressing portion is located in the second region. (Composition 9) A cooling device that can be attached to and detached from electronic equipment, A storage vessel for storing the refrigerant, The aforementioned electronic device has a heat receiving portion that can be inserted into the insertion portion, A cooling device characterized in that, when the heat receiving portion is inserted into the insertion portion, the heat receiving portion is configured to be thermally connected to a heat dissipation portion that receives heat from the electronic components of the electronic device. (Composition 10) The cooling device according to configuration 9, characterized in that the heat receiving section is movable. (Composition 11) The cooling device according to configuration 10, characterized in that, as the heat receiving portion moves, the heat receiving portion is pressed against the heat dissipation portion and thermally connected to the heat dissipation portion. (Composition 12) It further has heat transport components, The cooling device according to any one of configurations 9 to 11, characterized in that the heat receiving section is placed on the heat transport component and is configured such that the heat from the heat receiving section is transferred to the heat transport component. (Composition 13) The cooling device according to configuration 12, characterized in that the heat transport component protrudes outward from the outer casing of the cooling device. (Composition 14) The cooling device according to configuration 13, characterized in that the heat transport component has an elastic member that presses the heat receiving portion against the heat dissipation portion. (Composition 15) The cooling device according to any one of configurations 9 to 14, characterized in that the heat receiving portion is made of an elastic, highly heat-conductive member. (Composition 16) It further has an exterior section, The cooling device according to any one of configurations 9 to 15, characterized in that the storage container is thermally connected to the outer casing. (Composition 17) The cooling device according to any one of configurations 9 to 16, further comprising a cooling means for cooling the refrigerant. (Composition 18) The cooling device according to any one of configurations 9 to 17, characterized in that the refrigerant is water. (Composition 19) A cooling system comprising an electronic device and a cooling device that can be attached to the electronic device, The aforementioned electronic device comprises an electronic component, a heat dissipation section that receives heat from the electronic component, and an insertion section. At least a portion of the heat dissipation section is exposed inside the insertion section. The cooling device comprises a storage container for storing a refrigerant and a heat receiving part that can be inserted into the insertion part. A cooling system characterized in that when the heat receiving portion is inserted into the insertion portion, the heat dissipation portion and the heat receiving portion are configured to be thermally connected.

[0088] Although preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of its gist. [Explanation of Symbols]

[0089] 100, 500 Camera body (electronic device) 124 Duct (insertion part) 131 Image sensor (electronic component) 133 Electronic Components 135 Main unit heat dissipation section (heat dissipation section) 200, 600 External Cooling Accessories (Cooling Devices) 203, 603 Accessory Heat Receiving Section (Heat Receiving Section)

Claims

1. An electronic device with a detachable cooling device, Electronic components and, A heat dissipation unit that receives heat from the aforementioned electronic component, It has an insertion part into which the heat receiving part of the cooling device can be inserted, At least a portion of the heat dissipation section is exposed inside the insertion section. An electronic device characterized in that, when the heat receiving portion is inserted into the insertion portion, the heat dissipation portion is configured to be thermally connected to the heat receiving portion.

2. The electronic device according to claim 1, characterized in that the insertion portion is formed to which the heat receiving portion can be inserted and to which an opening for air to pass through is formed.

3. The electronic device according to claim 2, characterized in that the opening is provided with an openable and closable lid.

4. The electronic device according to any one of claims 1 to 3, characterized in that a pressing portion is provided inside the insertion portion for pressing the heat receiving portion against the heat dissipation portion.

5. The electronic device according to claim 4, characterized in that the pressing portion is an elastic member.

6. The electronic device according to claim 4, characterized in that the pressing portion is a projection that increases the force pressing the heat receiving portion against the heat dissipation portion as the amount of insertion of the heat receiving portion into the insertion portion increases.

7. The electronic device according to claim 4, characterized in that the pressing portion is a magnet.

8. The inside of the insertion portion is provided with a first region where the velocity of the airflow is faster than a predetermined velocity, and a second region where the velocity of the airflow is slower than the predetermined velocity. The electronic device according to claim 4, characterized in that the pressing portion is located in the second region.

9. A cooling device that can be attached to and detached from electronic equipment, A storage vessel for storing the refrigerant, The aforementioned electronic device has a heat receiving portion that can be inserted into the insertion portion, A cooling device characterized in that, when the heat receiving portion is inserted into the insertion portion, the heat receiving portion is configured to be thermally connected to a heat dissipation portion that receives heat from the electronic components of the electronic device.

10. The cooling device according to claim 9, characterized in that the heat receiving section is movable.

11. The cooling device according to claim 10, characterized in that, as the heat receiving portion moves, the heat receiving portion is pressed against the heat dissipation portion and thermally connected to the heat dissipation portion.

12. It further has heat transport components, The cooling device according to any one of claims 9 to 11, characterized in that the heat receiving section is placed on the heat transport component and is configured such that the heat from the heat receiving section is transferred to the heat transport component.

13. The cooling device according to claim 12, characterized in that the heat transport component protrudes outward from the outer casing of the cooling device.

14. The cooling device according to claim 13, characterized in that the heat transport component has an elastic member that presses the heat receiving portion against the heat dissipation portion.

15. The cooling device according to claim 9, characterized in that the heat receiving portion is made of an elastic, highly heat-conductive member.

16. It further has an exterior section, The cooling device according to claim 9, characterized in that the storage container is thermally connected to the outer casing.

17. The cooling device according to claim 9, further comprising a cooling means for cooling the refrigerant.

18. The cooling device according to claim 9, characterized in that the refrigerant is water.

19. A cooling system comprising an electronic device and a cooling device that can be attached to the electronic device, The aforementioned electronic device comprises an electronic component, a heat dissipation section that receives heat from the electronic component, and an insertion section. At least a portion of the heat dissipation section is exposed inside the insertion section. The cooling device comprises a storage container for storing a refrigerant and a heat receiving part that can be inserted into the insertion part. A cooling system characterized in that when the heat receiving portion is inserted into the insertion portion, the heat dissipation portion and the heat receiving portion are configured to be thermally connected.

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