JP2016139651A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus which comprises a hinge unit having excellent appearance quality and impact resistance.SOLUTION: In a digital camera, a display unit 500 is rotatably arranged to a camera main body 100 through a hinge unit 600 as a center of a rotational axis 602, and the camera main body 100 and the display unit 500 are connected by an FPC 700 of which one part is wounded to the rotational axis 602 and is arranged so as to pass a gap D of the camera main body 100 and the display unit 500. The hinge unit 600 is fixed to the camera main body 100, and comprises a shield member 800 for preventing an exposure of the FPC 700 from the gap D. The shield member 800 includes an arm part 802 that is fixed to the camera main body 100, has flexibility, is extended in a longitudinal direction of the rotational axis 602; and an annular cover part 803 that is arranged in a tip of the arm part 802, has an arc shape around the rotational axis 602 as a center, and covers a part wounded to the rotational axis 602 in the FPC 700.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an electronic device, and more particularly to an electronic device including a movable body such as a display device that is rotatably supported with respect to a main body of the electronic device.

  Some electronic devices such as a digital camera and a mobile communication terminal have a movable body such as a display device having an LCD (Liquid Crystal Display) attached to the device body via a hinge unit. With a digital camera equipped with such a display device, it is possible to take an image while confirming a subject from various angles such as a high angle and a low angle, and it is also possible to easily take a self-portrait (selfie).

  Here, the display device and the circuit board disposed inside the apparatus main body are connected by a flexible printed circuit board (hereinafter referred to as “FPC”) in order to transmit power, video signals, and the like to the display device. For example, Patent Document 1 discloses a configuration in which an FPC is wound around an outer peripheral surface of a hinge shaft as a hinge unit for wiring an FPC without causing any trouble in the rotation operation of the display device.

  Further, in Patent Document 1, in order to prevent the appearance quality from being deteriorated, the display device is wound around the outer peripheral surface of the hinge shaft from a certain gap provided to be rotatably arranged with respect to the device body. A configuration for preventing the FPC from being exposed to the outside is described. Specifically, in the gap through which the FPC passes between the device main body and the display device, a protrusion protruding in a ring shape along the hinge axis from the display device, and the device main body is provided so as to cover the protrusion. A shielding means having an uneven structure composed of a groove has been proposed.

JP 2003-152357 A

  However, when a load that causes a shift in the relative position between the device main body and the display device due to dropping or the like is applied to the device main body, in the hinge unit described in Patent Document 1, the protruding portion protruding in an annular shape is the device main body. There is a risk that it will collide with the groove portion provided in the case and be damaged. In particular, if the length of the protruding portion is sufficiently secured to prevent the FPC from being exposed, stress concentrates on the root portion of the protruding portion and is likely to be damaged. On the other hand, if the length of the protruding portion is shortened, the shielding function for preventing the FPC from being exposed becomes insufficient. In addition, when the display device is rotated, the protrusion rotates around the outer periphery of the FPC wound around the hinge shaft, so that the protrusion may damage the FPC, thereby cutting the FPC wiring.

  An object of this invention is to provide an electronic device provided with the hinge unit excellent in the external appearance quality and impact resistance.

  In the electronic device according to the present invention, a movable body is rotatably attached to the device main body via a hinge unit, and a part of the electronic device is wound around a rotation shaft serving as a rotation center of the movable body. An electronic device in which the device main body and the movable body are electrically connected by a flexible printed circuit board disposed so as to pass through a gap with the movable body, wherein the hinge unit includes the rotating shaft, A first holding member fixed to the apparatus main body and joined to the rotating shaft, a second holding member fixed to the movable body and supported by the rotating shaft, and fixed to the first holding member And a shielding member that prevents the flexible printed circuit board from being exposed from the gap. The shielding member is fixed to the device main body, has flexibility, and extends in a longitudinal direction of the rotating shaft. Arm , Provided at a tip of the arm portion, and having a an annular cover portion having an arc shape around the rotation axis.

  ADVANTAGE OF THE INVENTION According to this invention, it is excellent in external appearance quality and can implement | achieve the hinge unit excellent in impact resistance, Thereby, the electronic device excellent in reliability and external appearance quality can be provided.

It is the front side perspective view and back side perspective view of the camera main body which comprise the digital camera which concerns on embodiment of this invention. FIG. 2 is a front perspective view and a rear perspective view showing a state in which the display unit is rotated 180 ° in the opening direction with respect to the camera body shown in FIG. 1. It is a disassembled perspective view of the camera main body shown in FIG. It is the disassembled perspective view and partial enlarged view which looked at the display unit arrange | positioned at the camera main body shown in FIG. 1 from the front side of the camera main body. It is the disassembled perspective view which looked at the hinge unit which connects the camera main body and display unit shown in FIG. 1 from the front side of the camera main body. It is a perspective view which shows the state which expand | deployed the flexible printed circuit board which the hinge unit shown in FIG. 5 has. It is a perspective view which shows the structure of the shielding member which the hinge unit shown in FIG. 5 has. FIG. 2 is a rear view and a partially enlarged view of the camera body shown in FIG. 1. In the hinge unit shown in FIG. 5, the cross-sectional view in the present embodiment showing the configuration of the annular cover portion and its vicinity in a state where the shielding member is fixed, and the annular cover portion and its vicinity before the shielding member is fixed It is sectional drawing which shows the structure in a reference example.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Here, a so-called digital camera is taken up as an example of the electronic apparatus according to the present invention.

  FIG. 1 is an external perspective view of a camera body 100 constituting a digital camera according to an embodiment of the present invention, and FIG. 1A is a perspective view seen from the front side (subject side), and FIG. ) Is a perspective view seen from the back side.

  The camera body 100 is an example of an apparatus body that constitutes an electronic apparatus according to the present invention. On the front side of the camera body 100, a lens mount 101 for attaching a shooting lens barrel (not shown), a lock release button 102 for removing the shooting lens barrel from the lens mount 101, and an AF auxiliary light window 103. Is provided. On the upper surface side of the camera body 100, a release button 104, an electronic dial 105, a power button 106, a mode lever 107, a moving image shooting button 108, a microphone hole 109, and a pop-up strobe device 110 are provided.

  On both side surfaces of the camera main body 100, string passage holes 114 are provided for passing a neck strap for preventing the camera main body 100 from accidentally dropping. A release lever 111, a connector cover 112, and a slot cover 113 are provided on the right side as viewed from the front side of the camera body 100. When the release lever 111 is slid to the front side of the camera body 100, the strobe device 110 pops up, and the strobe light can be emitted (see FIG. 2A as appropriate). The connector cover 112 is provided so as to be openable and closable with respect to the camera body 100, and covers a terminal unit in which an analog video terminal, a power supply terminal, a digital terminal, and the like are arranged in a closed state. The slot cover 113 is provided so as to be openable and closable with respect to the camera body 100 and covers a slot for storing a storage medium such as a semiconductor memory card in the closed state.

  On the back side of the camera body 100, a display unit 500 including an LCD is rotatably disposed via a hinge unit 600 (see FIG. 4) described later. The display unit 500 is an example of a movable body constituting the electronic device according to the present invention. An operation button group 115 for performing various operations is provided on the back side of the camera body 100. Further, an operation button 116 and an external accessory mounting screw 117 are provided on the right side surface portion when viewed from the back side of the camera body 100, and a speaker hole is formed on the upper surface portion on the right side when viewed from the back side of the camera body 100. 118 is provided.

  2 is an external perspective view showing a state in which the display unit 500 is rotated 180 ° in the opening direction with respect to the camera body 100, and FIG. 2A is a perspective view seen from the front side. 2 (b) is a perspective view seen from the back side.

  The display unit 500 is fully opened when the display unit 500 is rotated in the 180 ° opening direction with respect to the camera body 100. In FIG. 1, the display unit 500 is housed on the back side of the camera body 100, and in this state, the display screen faces the back side of the camera body 100. On the other hand, as shown in FIG. 2, when the display unit 500 is in a fully opened state, the display screen 500a of the display unit 500 is positioned above the camera body 100 and faces the subject. Therefore, the digital camera is in a state suitable for self-portrait photography when the display unit 500 is fully opened.

  FIG. 3 is an exploded perspective view of the camera body 100. The camera body 100 includes a main unit 200, a front cover unit 300, a rear cover unit 400, and a display unit 500. The display unit 500 is rotatably attached to the main unit 200 via the hinge unit 600.

  4A is an exploded perspective view of the display unit 500 as viewed from the front side of the camera body 100, and FIG. 4B is an enlarged view of a portion A shown in FIG. 4A. The display unit 500 includes a hinge cover 501, a hinge unit 600, an exterior cover 502, and an image display device 503 arranged in order from the front side to the back side.

  The image display device 503 is fixed and held on the exterior cover 502 using an adhesive member such as a double-sided tape 504. The hinge unit 600 holds the image display device 503 and the exterior cover 502 and is fixed to the camera body 100 (not shown in FIG. 4). The hinge cover 501 is a component that covers the front side of the hinge unit 600.

  Next, the configuration of the hinge unit 600 will be described in detail with reference to FIG. 4B and FIGS. FIG. 5 is an exploded perspective view of the hinge unit 600 as viewed from the front side of the camera body 100. The hinge unit 600 includes a main body holding member 601, a rotation shaft 602, and a movable body holding member 603. The main body holding member 601 is a first holding member that is fixed to the camera main body 100. The rotation shaft 602 is joined to the main body holding member 601 and serves as a rotation center of the display unit 500. The movable body holding member 603 is a second holding member that holds the exterior cover 502.

  The rotating shaft 602 is fixed to a cylindrical holding portion 601a which is a curling portion provided at both ends of the main body holding member 601 by welding or the like. The movable body holding member 603 is provided with a cylindrical holding portion 603 a that is a curling portion for holding the rotating shaft 602, and is rotatably supported around the rotating shaft 602. In addition, a friction member 604 is attached to the movable body holding member 603 to give an appropriate frictional resistance when rotating around the rotation shaft 602.

  The hinge unit 600 includes a flexible printed circuit board (FPC) 700 that electrically connects the image display device 503 and a circuit board (not shown) provided in the camera body 100 and enables transmission of a power source, a video signal, and the like. . A part of the FPC 700 is wound around the rotation shaft 602 starting from a portion fixed to the rotation shaft 602 with a double-sided tape or the like.

  FIG. 6 is a perspective view showing a state in which the FPC 700 is developed. A double-sided tape 701 for fixing to the rotating shaft 602 is attached to a part of the FPC 700. The FPC 700 has a first end 702 connected to a circuit board (not shown) provided inside the camera body 100 and a second end 703 connected to the image display device 503.

  In the FPC 700, the first end portion 702 and the second end portion 703 are connected by a connection portion 704, and a tab portion 705 is provided on the connection portion 704. When the FPC 700 is wound around the rotation shaft 602, the tab portion 705 is attached to a positioning portion (not shown) provided on the rotation shaft 602 and then pasted with the double-sided tape 701. As a result, the FPC 700 can be attached to the rotating shaft 602 with high accuracy.

  A multi-winding region 706 is provided in a part of the FPC 700 on the second end 703 side. The multi-winding region 706 is wound around the outer periphery of the portion attached to the rotating shaft 602 with the double-sided tape 701, and is set to a length that allows winding for approximately two turns in this embodiment. The multi-winding region 706 of the FPC 700 is tightened and loosened with respect to the rotating shaft 602 when the movable body holding member 603 rotates about the rotating shaft 602. Thereby, the FPC 700 is prevented from being damaged and the display unit 500 can be smoothly rotated. Note that the number of windings around the rotating shaft 602 in the multi-winding region 706 is not limited to about two turns, and is set to an appropriate number by experiments or the like.

  As shown in FIG. 5, the shielding member 800 is fixed to the main body holding member 601 of the hinge unit 600. FIG. 7 is a perspective view showing the structure of the shielding member 800. The shielding member 800 includes a base portion 801, an arm portion 802, and an annular cover portion 803. The shielding member 800 is positioned with respect to the main body holding member 601 by fitting a positioning convex portion 801a provided on the base portion 801 into a positioning hole 601b provided on the main body holding member 601, and is not shown. It is fixed with screws.

  The shielding member 800 has an arm portion 802 extending from the base portion 801. An annular cover portion 803 having a circular cross section is provided at the tip of the arm portion 802. The annular cover portion 803 has a slit portion 803c that is formed by tip portions 803a and 803b and that extends and opens in the direction in which the arm portion 802 extends. Therefore, the annular cover portion 803 has a shape in which a cross section perpendicular to the extending direction of the arm portion 802 is substantially C-shaped.

  When the shielding member 800 is fixed to the main body holding member 601 of the hinge unit 600, the arm portion 802 is disposed so as to extend along the longitudinal direction of the rotation shaft 602 as shown in FIG. . When the shielding member 800 is fixed to the main body holding member 601, the rotation shaft 602 and a part of the FPC 700 wound around the rotation shaft 602 enter the inside of the annular cover portion 803 through the slit portion 803c and are arranged. More specifically, in a state where a certain gap is formed between the outer periphery of the connection portion 704 and the inner periphery of the annular cover portion 803 in the FPC 700 wound around the rotation shaft 602, the annular cover portion 803 is the outer periphery of the connection portion 704. Cover.

  In this embodiment, when the movable body holding member 603 of the hinge unit 600 rotates, the friction member 604 rotates together with the movable body holding member 603 in accordance with the rotation operation of the movable body holding member 603. On the other hand, the main body holding member 601 and the rotating shaft 602 do not rotate. That is, the portion of the shielding member 800 fixed to the main body holding member 601 and the portion attached to the rotating shaft 602 in the FPC 700 does not rotate. Therefore, the positional relationship among the main body holding member 601, the rotation shaft 602, the FPC 700, and the shielding member 800 is not changed by the rotating operation of the movable body holding member 603.

  8A is a rear view of the camera body 100, and FIG. 8B is an enlarged view of the region B shown in FIG. 8A. The rear cover unit 400 has a rear cover 401. In FIG. 8B, for convenience of explanation, the rear cover 401 and the exterior cover 502 of the display unit 500 are indicated by broken lines. Further, in FIG. 8B, in order to clearly show the shape of the shielding member 800, a part of the FPC 700 on the first end 702 side is omitted.

  A gap D is provided between the rear cover 401 and the exterior cover 502 to enable the display unit 500 to rotate. A first end 702 of the FPC 700 passes through the near side of the shielding member 800 and is connected to a connector 201 provided in the main unit 200, and a second end 703 of the FPC 700 is connected to the image display device 503. . The annular cover portion 803 of the shielding member 800 is disposed so as to straddle the predetermined gap D while holding the rotating shaft 602. At this time, one end of the annular cover portion 803 is located inside the exterior cover 502, and the like. The end is located inside the camera body 100. Furthermore, the arm portion 802 of the shielding member 800 is disposed so as to extend along the longitudinal direction of the rotation shaft 602 as described above. Therefore, the annular cover portion 803 prevents the FPC 700 wound around the rotation shaft 602 from being exposed to the outside from the gap D.

  In this embodiment, the camera body 100 and the exterior cover 502 are disposed with the annular cover portion 803 interposed therebetween, and the annular cover portion 803 has the flexibility fixed to the camera body 100 as described above. It is connected to the arm portion 802 having it. Therefore, even if the relative position between the camera body 100 and the exterior cover 502 constituting the display unit 500 is shifted due to an impact (external force) when the camera body 100 is dropped, the arm portion 802 follows the displacement of the relative position. Thus, the impact can be absorbed. Therefore, damage to the annular cover portion 803 due to external force acting on the camera body 100 can be suppressed.

  Next, characteristics of the shielding member 800 when assembled to the hinge unit 600 and after the assembly will be described. FIG. 9A shows the configuration of the annular cover portion 803 on the surface orthogonal to the longitudinal direction of the rotating shaft 602 and the vicinity thereof in a state where the shielding member 800 is fixed to the hinge unit 600. It is sectional drawing. FIG. 9B shows a configuration of the annular cover portion 803 on the surface orthogonal to the longitudinal direction of the rotating shaft 602 and a reference example in the vicinity thereof in a state before the shielding member 800 is fixed to the hinge unit 600. It is sectional drawing shown.

  As shown in FIG. 6, the FPC 700 has a crotch portion 707. The crotch portion 707 is a portion that becomes the end of winding of the connection portion 704 when the FPC 700 is wound around the rotation shaft 602. As shown in FIG. 9A, when the shielding member 800 is assembled to the main body holding member 601, the crotch portion 707 is interposed between the slit portions 803c formed by the tip portions 803a and 803b of the annular cover portion 803. positioned. 9A, when the shielding member 800 is assembled to the main body holding member 601 from the right side, the tip end portion 803a of the annular cover portion 803 does not peel off the crotch portion 707 from the rotation shaft 602.

  Here, consider a case where the crotch portion 707 is disposed at the position shown in the reference example of FIG. 9B when the FPC 700 is wound around the rotation shaft 602. In the case of this reference example, when the shielding member 800 is assembled to the main body holding member 601 from the right side in FIG. 9B, the tip portion 803a of the annular cover portion 803 may come into contact with the crotch portion 707. . As a result, the tip portion 803a may peel off the crotch portion 707 of the FPC 700 from the rotating shaft 602, and the wiring of the FPC 700 may be cut. Therefore, it is desirable that the crotch portion 707 of the FPC 700 is positioned in the slit portion 803c between the tip portions 803a and 803b of the annular cover portion 803 as shown in FIG.

  In the present embodiment, as described above, the hinge unit 600 does not rotate the main body holding member 601 and the rotating shaft 602 even if the display unit 500 (movable body holding member 603) rotates about the rotating shaft 602. . That is, the positional relationship between the shielding member 800 fixed to the main body holding member 601 and the FPC 700 wound around the rotation shaft 602 is not changed by the rotation operation of the display unit 500. Accordingly, the relative position between the FPC 700 and the annular cover portion 803 does not change with the rotation of the display unit 500, and the tip portions 803a and 803b of the annular cover portion 803 peel off the crotch portion 707 from the rotation shaft 602. There is no.

  As described above, according to the present embodiment, in the electronic device in which the device main body and the movable body are coupled via the hinge unit and electrically connected by the FPC, the movable body is rotated with respect to the device main body. It is possible to prevent the hinge unit from being exposed through a predetermined gap provided for movement. Further, since the shielding member that shields the exposure of the FPC is suppressed from being damaged by an impact caused by a drop of the electronic device or the like, the exposure of the FPC can be prevented and the appearance quality of the electronic device is improved. be able to. Furthermore, the shielding member that shields the exposure of the FPC can prevent the FPC wound around the rotating shaft from being peeled off or cut when the movable body is rotated, thereby improving the reliability of the electronic device. Can do.

  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. Furthermore, each embodiment mentioned above shows only one embodiment of this invention, and it is also possible to combine each embodiment suitably. For example, the electronic device according to the present invention is not limited to the digital camera (imaging device) described above, and can be applied to various electronic devices including a movable body. As an example, a foldable portable communication terminal or a personal computer can be used. A computer, a game machine, etc. can be mentioned.

DESCRIPTION OF SYMBOLS 100 Camera main body 500 Display unit 502 Exterior cover 600 Hinge unit 601 Main body holding member 602 Rotating shaft 603 Movable body holding member 700 FPC (flexible printed circuit board)
702 1st end part 703 2nd end part 704 Connection part 707 Crotch part 800 Shielding member 802 Arm part 803 Annular cover part 803a, 803b Tip part 803c Slit part

Claims (4)

A movable body is pivotally attached to the device main body via a hinge unit, and a part of the movable body is wound around a rotation shaft serving as a rotation center of the movable body and passes through a gap between the device main body and the movable body. An electronic device in which the device body and the movable body are electrically connected by a flexible printed circuit board arranged to
The hinge unit is
The rotating shaft;
A first holding member fixed to the device body and joined to the rotating shaft;
A second holding member fixed to the movable body and pivotally supported by the rotating shaft;
A shielding member fixed to the first holding member and preventing the flexible printed circuit board from being exposed from the gap,
The shielding member is
An arm portion fixed to the device main body, having flexibility and extending in a longitudinal direction of the rotation shaft;
An electronic device comprising: an annular cover portion provided at a tip of the arm portion and having an arc shape with the rotation axis as a center.   The electronic apparatus according to claim 1, wherein the annular cover portion covers a portion of the flexible printed board that is wound around the rotating shaft. The flexible printed circuit board includes a first end connected to the device main body, a second end connected to the movable body, a connecting portion connecting the first end and the second end, Have
The annular cover portion has a slit portion that extends and opens in a direction in which the arm portion extends,
The part which becomes the winding end with respect to the said rotating shaft in the said connection part in the state in which the said part of the said flexible printed circuit board was wound around the said rotating shaft is located in the said slit part. The electronic device described.   The electronic device according to claim 1, wherein the electronic device is an imaging device.