JP2016082273A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus which has few interposed components, a short path of heat transfer, and excellent heat radiation efficiency.SOLUTION: An electronic apparatus has a body portion 11 which includes a grip portion; a moving portion 12; a hinge portion 13 which connects the moving portion 12 to the body portion 11 so as to at least open/close; and a heat source 112 in the body portion 11. The heat source 112 is disposed near the moving portion 12 when the moving portion 12 is closed. The electronic apparatus has a high heat transfer elastic member 111 thermally connected to the heat source 112 in the body portion 11. The hight heat transfer elastic member 111 is disposed so as to abut on the moving portion 12 only when the moving portion 12 is closed, and the moving portion 12 has a high heat transfer portion in at least a part 121 abutting on the high heat transfer elastic member 111.SELECTED DRAWING: Figure 1b

Description

  The present invention relates to a heat dissipation structure for an electronic device including a main body having a heat source and a movable part that can be opened and closed with respect to the main body.

  In a conventional electronic device heat dissipation structure, in the case of an electronic device composed of a display unit having a hinge portion that can be opened and closed and a main body having a heat source, heat is generally radiated from the exterior surface of the main body having the heat source. Among them, when the display unit is closed, a heat source is arranged in the vicinity of the main unit exterior surface close to the display unit, and when the display unit is closed, heat is dissipated from the main unit exterior surface adjacent to the display unit to There are products that enable efficient heat dissipation of the main body without heating (see Non-Patent Document 1).

  Here, the heat dissipation structure inside the main body of Non-Patent Document 1 will be described with reference to FIG. First, a heat dissipating metal plate 22 (a copper plate, an aluminum plate, or the like) is disposed on the inner surface of the main body exterior surface 21 adjacent to the display unit when the display unit is closed to increase heat dissipation efficiency. Further, a highly heat conductive elastic member 23 (heat conductive rubber or the like) that transfers heat from the heat source 24 to the heat radiating metal plate 22 is disposed between the heat source 24 and the heat radiating metal plate 22.

  With the above configuration, the heat of the heat source 24 is transmitted to the heat radiating plate 22 via the high thermal conductive elastic member 23 and spreads over the entire surface of the heat radiating plate 22. It becomes the structure to do.

  However, the above products may be used with the display unit closed when using a viewfinder. At that time, there is a problem that the heat radiation efficiency from the exterior surface 21 is lowered if the display unit is closed.

  As one of the means that can solve the above problem, there has been proposed a method in which heat of the main body is transferred to the display unit through a hinge unit that can be opened and closed and radiated from the display unit (see Patent Document 1).

CANON Video Camera General Catalog January 2011 P4 iVIS HF M41, iVIS HF M43

JP 2001-356842 A

  However, in the above-mentioned Patent Document 1, there are many intervening parts, and the heat conduction path is long and thin, so the heat dissipation efficiency is not good.

  An object of the present invention is to provide an electronic device with good heat dissipation efficiency with few intervening components and a short heat conduction path.

The present invention has a main body part 11 including a gripping part, a movable part 12, a hinge part 13 that connects the movable part 12 to the main body part 11 so as to be openable and closable, and a heat source 112 inside the main body 11, In the electronic device in which the heat source 112 is disposed in the vicinity of the movable part 12 when the movable part 12 is closed,
The main body 11 has a high thermal conductivity elastic member 111 thermally connected to the heat source 112, and the high thermal conductivity elastic member 111 is disposed so as to contact the movable portion 12 only when the movable portion 12 is closed. ,
The movable portion 12 is characterized in that at least a portion 121 in contact with the high thermal conductivity elastic member 111 is a high thermal conductivity portion.

  ADVANTAGE OF THE INVENTION According to this invention, provision of the electronic device with few intervening parts, a short heat conduction path | route, and favorable heat dissipation efficiency is realizable.

It is an external view of the electronic device which concerns on embodiment, Comprising: The external view showing the closed state of the movable part 12 in an integrated state It is an external view of the electronic device which concerns on embodiment, Comprising: The external view showing the open state of the movable part 12 in an integrated state The figure showing the structure inside the main body 11 of the electronic device which concerns on embodiment The figure showing the structure inside the movable part 12 of the electronic device which concerns on embodiment. The figure showing the assembly state of the movable part 12 of FIG. The figure showing the heat dissipation structure in the conventional electronic equipment

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

<First Embodiment>
FIG. 1 is a diagram illustrating components of an electronic device according to this embodiment. In the present embodiment, a main body portion 11 including a gripping portion and a movable portion 12 (for example, a display portion), a biasing hinge portion 13 that connects the main body portion 11 and the movable portion 12 so as to be openable and closable, and an external charging terminal portion 14. , Battery unit 15, viewfinder 16, high thermal conductive elastic member 111 (heat radiation rubber, thermal conductive silicon sponge, etc.), heat source 112 inside the main unit 11, high heat source 1121 (power circuit block etc.) in the heat source, opening An external cover 113 having a portion 1131; a heat radiating plate 114 that spreads heat from the heat source 112; a part 121 of the movable portion 12 that is in contact with the high thermal conductive elastic member 111; a high thermal conductive member (high thermal conductive mold, metal, etc.) Top cover 122, electric circuit board 123, LCD unit 124, bottom cover 125 of a high thermal conductivity member, top cover 122 and bottom cover An electronic device having a screw 126 to be connected.

  FIG. 1A is a diagram illustrating a closed state of the movable portion 12 in the integrated state (at this time, the movable portion 12 is urged in the closing direction). FIG. 1B is a diagram illustrating an open state of the movable unit 12 in an integrated state. FIG. 1 c is a diagram illustrating the internal configuration of the main body 11. FIG. 1 d is a diagram illustrating the internal configuration of the movable unit 12. FIG. 1e is a diagram illustrating an assembled state of the movable portion 12 of FIG. 1d.

  In the above configuration, as shown in FIG. 1c, the high thermal conductive elastic member 111 is disposed on the heat source 112 and is thermally connected to the heat source 112 by being sandwiched between the appearance cover 113 having the opening 1131. Further, as shown in FIG. 1B, the high thermal conductive elastic member 111 is partially exposed from the opening 1131 of the outer cover 113 having an opening. As shown in FIG. 1B, the high thermal conductive elastic member 111 is disposed so as to contact the movable portion 12 only when the movable portion 12 is closed (as shown in FIG. 1A), and the movable portion 12 is at least a contact portion 121. Is a high heat conductive member (metal or high heat conductive mold or the like). Thereby, only when the movable part 12 is closed, the heat of the heat source 112 inside the main body is transmitted to the movable part 12 and radiated. In addition, there are few intervening parts, the heat conduction path is short, and the heat radiation efficiency is good.

  Also, with the above configuration, when the user opens the movable part 12 and grips the movable part 12, heat is not transmitted to the movable part 12, so the grip part does not become hot. In this case, the heat radiation is performed by the appearance cover 113.

  Further, as shown in FIG. 1e, the contact portion 121 is disposed in the vicinity of the screw 126 connecting the top cover 122 and the bottom cover 125. Also, as shown in FIG. 1d, the top cover 122 and the bottom cover 125 are joined by screws 126 so that the top cover 122 and the bottom cover 125 have a thermal connection with a short path.

  With the above configuration, the heat transferred from the high thermal conductive elastic member 111 is sequentially transferred to the contact portion 121, the bottom cover 125 of the high thermal conductive member, and the top cover 122 of the high thermal conductive member. At that time, the screw 126 connecting the contact portion 121, the top cover 122, and the bottom cover is disposed in the vicinity, so that the heat transfer loss is minimized and the high heat conduction member that becomes the main appearance when the movable portion 12 is closed is provided. When transmitted to the top cover 122 and the movable part 12 is closed, the heat source 112 can efficiently dissipate heat.

  Further, as shown in FIG. 1 b, the contact portion 121 has a surface shape that is one step higher than the other surface of the movable portion 12, and the high thermal conductive elastic member 111 is disposed on a surface that is one step lower than the other surface of the main body portion 11. As a result, the user cannot easily touch the high thermal conductive elastic member 111 while maintaining the heat dissipation structure to the movable portion 12, and the possibility of low temperature burns or the like can be reduced.

  Further, as shown in FIG. 1a, the battery 15 and the external charging terminal 14 are disposed in the vicinity of the high thermal conductive elastic member 111. In general, the battery 15 and the external charging terminal 14 are disposed in the vicinity of the power supply circuit serving as the high heat generation source 1121. Therefore, the battery 15 and the external charging terminal 14 are disposed in the vicinity of the high thermal conductive elastic member 111. Thus, heat can be directly transferred from the high heat generation source 1121 to the high thermal conductive elastic member 111, and efficient heat dissipation can be achieved.

  Further, as shown in FIG. 1b, the high thermal conductive elastic member 111 is disposed outside the vicinity of the hinge portion 13. This is because when the movable portion 12 is closed, the contact portion 121 of the movable portion 12 and the high thermal conductive elastic member 111 come into contact with each other, and the impact can be efficiently reduced.

  Although the present invention has been described in detail based on preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. included. A part of the above-described embodiments may be appropriately combined.

DESCRIPTION OF SYMBOLS 11 Main-body part, 12 Movable part, 13 Energizing-type hinge part, 14 External charge terminal part, 15 Battery part, 16 Viewfinder, 111 High heat conduction elastic member, 112 Heat source, 113 Appearance cover with opening 1131, 114 Heat source 112 Heat dissipation plate to spread the heat of heat, 1121 high heat source in heat source, 1113 opening

Claims (6)

A main body 11 and a movable part 12 including a gripping part, a hinge part 13 that connects the movable part 12 to the main body part 11 so as to be openable and closable, and a heat source 112 inside the main body 11. In the electronic device in which the heat source 112 is disposed in the vicinity of the movable portion 12 when the
The main body 11 has a high thermal conductivity elastic member 111 thermally connected to the heat source 112, and the high thermal conductivity elastic member 111 is disposed so as to contact the movable portion 12 only when the movable portion 12 is closed. ,
2. The electronic apparatus according to claim 1, wherein at least a portion 121 where the movable portion 12 contacts with the high thermal conductivity elastic member 111 is a high thermal conductivity portion.   In the case where the main appearance of the movable part 12 is composed of a top cover 122 of a high heat conduction member and a bottom cover 125 of a high heat conduction member, the thermal connection part 126 of the top cover 122 and the bottom cover 125 is connected to the high heat conduction elastic member 111. The electronic device according to claim 1, wherein the electronic device is provided in the vicinity of a portion 121 that abuts with the electronic device.   The electronic apparatus according to claim 1, wherein the high thermal conductive elastic member 111 is exposed from an opening 1131 to the outside.   The portion 121 that comes into contact with the high thermal conductivity elastic member 111 has a surface shape that is one step higher than the other surface of the movable portion 12, and the high thermal conductivity elastic member 111 is disposed on a surface that is one step lower than the other surface of the main body portion 11. The electronic apparatus according to any one of claims 1 to 3, wherein the electronic apparatus is characterized in that   5. The electronic device according to claim 1, wherein the battery 15 and the external charging terminal 14 are disposed in the vicinity of the high thermal conductive elastic member 111.   The electronic apparatus according to claim 1, wherein the high thermal conductive elastic member 111 is disposed outside the vicinity of the hinge portion 13.