JP2018128556A - Imaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an imaging apparatus which is excellent in heat dissipation performance, and suppresses a rise of a temperature of an exterior housing usually brought into contact with a user when the user holds a camera.SOLUTION: An imaging apparatus includes: an imaging apparatus body section having a first exterior member and a second exterior member; a display section; a connection section connecting the imaging apparatus body section and the display section so as to enable relative rotational movement; a control board; and a thermal conductive member thermally coupled to the control board, where the first exterior member is formed of a resin material and has an operation section arranged adjacently to the display section, and the second exterior member is formed of a metal member and has a second exterior member quasi-appearance section that can be exposed by rotational movement of the connection section and a second exterior member extension section extending the second exterior member quasi-appearance section overlapping with the first exterior member as viewed from a photographic optical axis direction.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an imaging apparatus using a rotation mechanism in which a display unit and an imaging apparatus main body can be rotated relatively.

  In a heavy camera such as an interchangeable lens camera, a first resin member having a large frictional force such as elastomer and elasticity and a second mechanical material having excellent mechanical strength such as polycarbonate so that the user can easily hold the camera. The exterior casing is configured with a two-layered resin member. The outer casing has low thermal conductivity, and it is difficult to dissipate heat generated from the control board inside the camera by the outer casing. For this reason, the temperature of the control board rises, and there is a case where the device malfunctions or the electronic component group in the control board is destroyed by heat.

  Therefore, as disclosed in Patent Document 1, the heat generated by the electronic component group is supplied to the second casing (display section) via the heat conduction member arranged in the casing and the connecting portion having two rotation axes orthogonal to each other. A mechanism for transferring heat to and dissipating heat has been proposed.

Japanese Patent No. 05187142

  However, in recent years, the second housing having the display portion also becomes high temperature due to heat generated from the display portion, heat transfer to the second housing cannot be performed, and another heat dissipation structure has become necessary.

  In view of the above problems, an object of the present invention is to provide an imaging apparatus configured to suppress a temperature rise of a control board and to suppress a temperature rise of an exterior housing that contacts a user's hand when the user holds the camera. Is to provide.

An imaging device main body (101) having a first exterior member (107y) and a second exterior member (107f);
A display unit (108);
A connecting portion (301) in which the imaging device main body (101) and the display portion (108) are connected so as to be relatively rotatable;
A control board (1);
A heat conducting member (500) thermally coupled to the control board (1);
In the imaging device (100) having
The first exterior member (107y) is formed of a resin material and includes an operation unit (107c) disposed adjacent to the display unit (108).
The second exterior member (107f) is formed of a metal member, and the second exterior member quasi-appearance part (107z) that can be exposed by the rotational movement of the connecting part (301) and the photographic optical axis direction as described above. The second exterior member extending portion (107fa) is formed by extending the second exterior member semi-appearance portion (107z) overlapping the first exterior member (107y).

  According to the present invention, the second exterior member (107f), which is the second exterior member semi-appearance part (107z) that can be exposed by the rotational movement of the connecting part (301), is used as the metal member. The first exterior member (107y) used by the user when holding the camera is made of a resin member, and the heat conduction to the place where the user's hand frequently contacts is suppressed, while the user does not usually contact. It is possible to efficiently dissipate heat by dissipating heat.

External perspective view of the camera 100 of this embodiment as seen from the subject side External perspective view of the camera 100 of this embodiment viewed from the photographer side Exploded perspective view of the camera 100 of this embodiment The perspective view of the heat conductive member unit 500 of a present Example An exploded perspective view of the back cover unit 107 of the present embodiment. Sectional drawing of the camera 100 of a present Example

[Example 1]
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
201702061015100660 __________ 0172682-01 __________________ APH_0
These are the perspective views which looked at the digital camera 100 which is an example of embodiment of the imaging device of this invention from the front side (subject side).

  2A and 2B are perspective views of a digital camera 100 as an example of an embodiment of the imaging apparatus of the present invention as viewed from the back side (photographer side).

The digital camera 100 of this embodiment is
201702061015100660 __________ 0172682-01 __________________ APH_1
As shown in FIG. 3, the front cover 102, the back cover unit 107, the top cover 106, the right cover 104, and the bottom cover 105 form an exterior of the camera body 101. A photographing lens 103 is provided on the front side of the camera body 101. A power lever 109, a mode dial 110, an exposure correction dial 111, a sub dial 112, a main dial 113, a release button 114, and a pop-up strobe unit 115 are provided on the upper surface of the camera body 101.

  As shown in FIGS. 2A and 2B, a display unit 108 such as an LCD is provided on the back side of the camera body 101 via a connecting portion 301 that can rotate in the opening / closing direction with respect to the camera body 101. It is supported. FIG. 2A shows an example of the display unit storage state, and FIG. 2B shows an example of a state in which the display unit 108 is rotated by the connecting portion 301. The back cover unit 107 is provided with a back cover unit semi-appearance portion 107 z that is exposed by rotating the connecting portion 301.

  Even when the display unit 108 shown in FIG. 2A is housed in the back cover unit semi-appearance portion 107z, the display unit 108 and the back cover unit semi-appearance portion 107z, and the connecting portion 301 and the back cover unit. A predetermined gap is provided between the semi-appearance portions 107z, and is configured to be exposed to the outside air. Therefore, heat can be radiated by the back cover unit semi-appearance portion 107z.

  FIG. 3 is an exploded perspective view of the periphery of the back cover unit 107 of the digital camera 100 which is an example of the embodiment of the imaging apparatus of the present invention. As shown in FIG. 3, the camera body 101 includes a heat conducting member unit 500, a back cover unit 107, and a control board 1. The back cover unit 107 is fixed to the camera body 101 by fastening the back cover unit 107 to the heat conducting member unit 500 using the screw 2 at the back cover unit fastening portion 107za.

  The heat conducting member unit 500 includes a heat conducting rubber 501, a first metal chassis 502, and a second metal chassis 503. The heat conducting rubber 501 is in contact with the control board 1 and the first metal chassis 502 disposed in the camera body 101.

  The heat generated in the control board 1 is transmitted through the heat conducting rubber 501 in the z-axis direction and diffuses in the z-axis direction of the first metal chassis 502 and the surface direction perpendicular to the z-axis. The first metal chassis 502 can disperse heat by using a copper material or an aluminum material having high thermal conductivity. Further, the heat diffused in the first metal chassis 502 is similarly transmitted through the second metal chassis 503 in the z-axis direction and the surface direction perpendicular to the z-axis. In the present invention, stainless steel is used for the second metal chassis 503, and heat can be dispersed.

  FIG. 4 is a perspective view of the heat conducting member unit 500. The heat conducting member unit 500 is provided with a heat conducting member contact portion 500z. The back cover unit 107 and the heat conducting member unit 500 abut at the heat conducting member abutting portion 500z.

FIG. 5 is an exploded perspective view of the back cover unit 107. The back cover unit 107 includes a first exterior member 107y, an operation button 107c, an operation board 107e, an operation board support member 107d, and a second exterior member 107f. The second exterior member 107f is provided with a back cover unit semi-appearance portion 107z that can be exposed by the rotation of the connecting portion 301.

  The first exterior member 107y is a machine that uses a material such as polycarbonate, and the first resin member 107a having a large frictional force and elasticity, such as an elastomer, which is effective for the user to easily hold the camera, and the second resin member 107b. It is composed of a two-layer structure that secures mechanical strength. The operation board 107e is electrically connected to the control board 1.

The heat conducting member contact portion 500z is provided so as to overlap the rear cover unit semi-appearance portion 107z when viewed from the z-axis direction (photographing optical axis direction), and is in contact with the second exterior member 107f.
With the above configuration, the heat of the control board 1 is dispersed by the heat conducting member unit 500 to lower the temperature, and the heat is conducted to the back cover unit semi-appearance portion 107z. The second exterior member 107f is a metal member having good thermal conductivity. In this embodiment, an aluminum material is used, and heat can be dissipated by the back cover unit semi-appearance portion 107z while diffusing heat in a plane direction perpendicular to the z-axis.

  FIG. 6 is a cross-sectional view of the digital camera 100. The second exterior member 107f is provided with a second exterior member extending portion 107fa that extends so as to overlap the operation substrate 107e and the operation substrate support member 107d when viewed from the z-axis direction. The operation substrate support member 107d and the second exterior member 107f are in contact with each other at the operation substrate support member contact portion 107da. Heat is diffused to the operation substrate support member 107d while the back cover unit semi-appearance portion 107z dissipates heat. Further, the operation load of the operation button 107c is supported by the second exterior member extending portion 107fa.

  Further, the second exterior member extending portion 107fa and the heat conducting member unit 500 are arranged apart from each other so that the heat of the heat conducting member unit 500 is transmitted via the back cover unit semi-appearance portion 107z. doing. Alternatively, the operation board support member 107d may be eliminated and the operation board 107e may be directly supported by the second exterior member extending portion 107fa. With the above configuration, the digital camera 100 can be downsized in the z-axis direction at the operation board 107e.

  Further, the back cover unit fastening portion 107za shown in FIG. 3 is configured as concave as possible so that the screw 2 is recessed with respect to the surface of the second exterior member 107f. The back cover unit fastening portion 107za and the screw 2 are members through which heat of the heat conducting member unit 500 is directly conducted, and are the highest temperatures in the back cover unit semi-appearance portion 107z. It is configured not to cause discomfort when the user touches it.

  By adopting the above configuration, it is possible to prevent malfunction of the device by suppressing the temperature rise of the control board 1, and to prevent the heat of the heat conducting member unit 500 from being directly transmitted to the operation board support member 107d and the operation board 107e. While suppressing an excessive temperature rise of the first exterior member 107y that is always in contact with the user's hand, heat can be dispersed and radiated. Further, since the first exterior member 107y uses a resin material having low thermal conductivity, an effect of further suppressing the temperature increase of the first exterior member 107y can be obtained.

First exterior member (107y)
Second exterior member (107f)
Imaging device body (101)
Display unit (108)
Connecting part (301)
Control board (1)
Thermal conduction member (500)
Operation unit (107c)
Second exterior member semi-appearance part (107z)
Second exterior member extending portion (107fa)

Claims (4)

An imaging device main body (101) having a first exterior member (107y) and a second exterior member (107f);
A display unit (108);
A connecting portion (301) in which the imaging device main body (101) and the display portion (108) are connected so as to be relatively rotatable;
A control board (1);
A heat conducting member (500) thermally coupled to the control board (1);
In the imaging device (100) having
The first exterior member (107y) is formed of a resin material and includes an operation unit (107c) disposed adjacent to the display unit (108).
The second exterior member (107f) is formed of a metal member, and the second exterior member quasi-appearance part (107z) that can be exposed by the rotational movement of the connecting part (301) and the photographic optical axis direction as described above. An imaging apparatus (100), comprising: a second exterior member extending portion (107fa) obtained by extending a second exterior member semi-appearance portion (107z) that overlaps the first exterior member (107y). An operation board (107e) for detecting a pressing operation of the operation unit (107c)
The imaging apparatus according to claim 1, wherein the imaging apparatus is disposed so as to come into contact with the second exterior member extending portion (107 fa). The operation board support member (107d) that supports the operation board (107e) and the second exterior member extending portion (107fa) are arranged so as to come into contact with each other at the operation board support member contact portion (107da). The imaging apparatus according to claim 1 or 2. The heat conducting member (500) has a heat conducting member contact portion (500z) that comes into contact with the second exterior member semi-appearance portion (107z) when viewed from the photographing optical axis direction, and the operation portion (107c). The imaging apparatus according to claim 1, wherein the imaging device is configured not to contact in an overlapping region.