US-12627873-B2 - Image pickup apparatus having cooling structure

US12627873B2US 12627873 B2US12627873 B2US 12627873B2US-12627873-B2

Abstract

An image pickup apparatus capable of efficiently cooling a recording medium stored therein while suppressing an increase in size of the image pickup apparatus. The image pickup apparatus comprising an image pickup apparatus main body, a grip part disposed in the image pickup apparatus main body and to be gripped when the image pickup apparatus is used, a control board provided to the image pickup apparatus main body and arranged substantially perpendicular to an optical axis direction, a storage part that is mounted on the control board in a position not overlapping the grip part as viewed in the optical axis direction, and that is capable of storing a recording medium, and a heat dissipation duct that is disposed in a position not overlapping the grip part as viewed in the optical axis direction and is thermally connected to the storage part.

Inventors

Yuta Nakamura
Yuko Teruya
Hayato Mano
Yoshinobu Shibayama

Assignees

CANON KABUSHIKI KAISHA

Dates

Publication Date: 20260512
Application Date: 20240319
Priority Date: 20230323

Claims (20)

1 . An image pickup apparatus comprising: an apparatus main body; a grip part integrally disposed on a front left side of a front surface of the apparatus main body, as viewed from a subject side, so as to protrude toward the subject side beyond the front surface of the apparatus main body; a control board provided to the image pickup apparatus main body and arranged substantially perpendicular to an optical axis direction; a storage part that is mounted on the control board, and that is capable of storing a recording medium; a heat dissipation duct thermally connected to the storage part; and a cooling fan configured to perform air intake and exhaust for the heat dissipation duct, wherein the storage part, the heat dissipation duct, and the cooling fan are each disposed in a position not overlapping the grip part as viewed in the optical axis direction, and wherein the heat dissipation duct and the cooling fan are located on a back side of the apparatus main body relative to the control board and the storage part.
2 . The image pickup apparatus according to claim 1 , wherein the heat dissipation duct includes a first duct connected to an intake side of the cooling fan, and a second duct connected to an exhaust side of the cooling fan, the storage part and the second duct are thermally connected to each other, and a heat source other than the storage part mounted on the control board and the first duct are thermally connected to each other.
3 . The image pickup apparatus according to claim 2 , wherein when viewed in the optical axis direction, the storage part does not overlap the first duct and overlaps a part of the second duct, and when viewed in a left-right direction of the apparatus main body, the storage part does not overlap the second duct and overlaps a part of the first duct.
4 . The image pickup apparatus according to claim 2 , wherein a flow path cross-sectional surface area of the second duct is larger than a flow path cross-sectional surface area of the first duct.
5 . The image pickup apparatus according to claim 1 , wherein the storage part is disposed at a right end portion of the apparatus main body as viewed from the subject side.
6 . The image pickup apparatus according to claim 1 , wherein an intake port and an exhaust port are provided to different surfaces of the apparatus main body, and an insertion port for inserting the recording medium into the storage part is provided on the same surface as a surface of the apparatus main body on which the exhaust port is disposed.
7 . The image pickup apparatus according to claim 2 , further comprising a third duct disposed on a side opposite to the side on which the storage part is mounted with respect to the control board in the optical axis direction, wherein the storage part and the third duct at least partially overlap each other as viewed in the optical axis direction, and the control board and the third duct are thermally connected to each other within an area in which the storage part and the third duct overlap each other as viewed in the optical axis direction.
8 . The image pickup apparatus according to claim 7 , further comprising an image pickup device disposed substantially parallel to the control board, wherein the third duct is located between the control board and the image pickup device in the optical axis direction.
9 . The image pickup apparatus according to claim 8 , wherein the image pickup device and the third duct are thermally connected to each other.
10 . The image pickup apparatus according to claim 7 , further comprising a connecting passage that merges air taken into the third duct into a flow path in the first duct.
11 . The image pickup apparatus according to claim 7 , wherein a connection terminal for connecting an external device is fixed to the third duct.
12 . The image pickup apparatus according to claim 11 , wherein the connection terminal is fixed to a portion of the third duct that does not form a flow path.
13 . The image pickup apparatus according to claim 11 , wherein a number of the connection terminal is two, wherein the two connection terminals are provided side by side, and an intake port through which air is taken into the third duct is disposed between the two connection terminals.
14 . The image pickup apparatus according to claim 1 , wherein the heat dissipation duct includes the cooling fan, and a first duct is connected to an intake side of the cooling fan, and a second duct is connected to an exhaust side of the cooling fan, the second duct comprises a frame part and a heat transfer part having higher flexibility than the frame part, and the heat transfer part is thermally connected to the storage part.
15 . The image pickup apparatus according to claim 14 , wherein the heat transfer part is formed in a sheet shape, and is disposed so as to close a frame opening formed in the frame part from inside of the frame part.
16 . The image pickup apparatus according to claim 15 , wherein the heat transfer part is fixed to an inner surface of the frame part by adhesion or bonding.
17 . The image pickup apparatus according to claim 15 , wherein a part of the storage part enters the frame opening in the optical axis direction.
18 . The image pickup apparatus according to claim 14 , wherein the storage part has a step part, on a side facing the second duct in the optical axis direction, and the heat transfer part covers the step part.
19 . The image pickup apparatus according to claim 14 , wherein the storage part has a storage part opening, on the side facing the second duct in the optical axis direction, and the heat transfer part covers the storage part opening.
20 . The image pickup apparatus according to claim 19 , wherein the storage part has arm parts cut and raised inward in the storage part opening, and the arm parts abut on the recording medium stored in the storage part.

Description

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an image pickup apparatus having a cooling structure. Description of the Related Art In an image pickup apparatus, a signal processing load and power consumption increase together with an increase in resolution and a high frame rate of a recorded video, and a heat generation amount of a signal processor such as an image pickup part and a recording medium increases. Because the performance of the electronic components in the image pickup apparatus decreases at high temperatures, it is necessary to provide a cooling structure inside the image pickup apparatus. Japanese Laid-Open Patent Publication (kokai) No. 2022-77037 discloses a heat dissipation structure for forcibly air-cooling the interior of an image pickup apparatus. The image pickup apparatus disclosed in Japanese Laid-Open Patent Publication (kokai) No. 2022-77037 incorporates a forced air-cooling flow path, performs exchanges heat by causing the outside air supplied from an intake port on a back surface of the apparatus to pass through the forced air-cooling flow path, and then exhausts the air from an exhaust port on a side surface of the apparatus to cool a main heat source inside the apparatus. However, Japanese Laid-Open Patent Publication (kokai) No. 2022-77037 does not take into account cooling of a recording medium. If a structure for cooling a recording medium is newly added, the apparatus increases in size. In the future, with an increase in the writing bit rate due to high image quality, a further increase in the amount of heat generation in the recording medium is predicted, and it is therefore necessary to efficiently cool the recording medium. SUMMARY OF THE INVENTION The present invention provides an image pickup apparatus capable of efficiently cooling a recording medium stored therein while suppressing an increase in size of the image pickup apparatus. Accordingly, the present invention provides an image pickup apparatus comprising an image pickup apparatus main body, a grip part disposed in the image pickup apparatus main body and to be gripped when the image pickup apparatus is used, a control board provided to the image pickup apparatus main body and arranged substantially perpendicular to an optical axis direction, a storage part that is mounted on the control board in a position not overlapping the grip part as viewed in the optical axis direction, and that is capable of storing a recording medium, and a heat dissipation duct that is disposed in a position not overlapping the grip part as viewed in the optical axis direction and is thermally connected to the storage part. According to the present invention, it is possible to efficiently cool a recording medium stored in an image pickup apparatus while suppressing an increase in size of the image pickup apparatus. Further features of the present invention will become apparent from the following description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS FIGS. 1A and 1B are a front perspective view and a rear perspective view of an image pickup apparatus, respectively. FIGS. 2A and 2B are a rear perspective view and a front perspective view of internal components of the image pickup apparatus, respectively. FIG. 3 is a rear exploded perspective view of internal components of the image pickup apparatus. FIGS. 4A and 4B are a bottom view of the image pickup apparatus and a cross-sectional view taken along line A-A, respectively. FIGS. 5A and 5B are a rear view of the image pickup apparatus and a cross-sectional view taken along line B-B, respectively. FIGS. 6A to 6C are a front perspective view, a rear perspective view and a right side view of the image pickup apparatus, respectively. FIG. 7 is a front perspective view of internal components of the image pickup apparatus. FIGS. 8A and 8B are a rear exploded perspective view and a front exploded perspective view of an internal configuration of the image pickup apparatus, respectively. FIGS. 9A to 9C are a bottom view of the image pickup apparatus, a cross-sectional view taken along line C-C, and a schematic top view of the image pickup apparatus, respectively. FIG. 10 is a rear perspective view of a cooling structure for a recording medium. FIGS. 11A and 11B are a rear exploded perspective view and a front exploded perspective view of a cooling structure for a recording medium, respectively. FIG. 12 is a perspective view showing a media slot and a recording medium. FIG. 13 is a cross-sectional view taken along line D-D in FIG. 10. FIG. 14 is an enlarged view of a part F in FIG. 13. FIG. 15 is an enlarged view of a part G in FIG. 13. FIG. 16 is a cross-sectional view taken along line E-E in FIG. 10. FIGS. 17A and 17B are a front perspective view and a rear perspective view of an image pickup apparatus, respectively. FIGS. 18A and 18B are front perspective views of the image pickup apparatus. FIGS. 19