JP2016018174A - Electronics - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem such that the body of an electronic apparatus having a radio communication function has to be large-sized because of antenna arrangement.SOLUTION: An electronic apparatus includes an apparatus main body (1) and a movable member (2) connected to the apparatus main body (1) in an openable and closable fashion by a hinge mechanism. A recess (39c) is provided on a face opposing to the apparatus main body (1) of the movable member (2). A salient (42c) is provided at a position corresponding to the recess (39c) of the movable member (2) on the face opposing to the movable member (2) of the apparatus main body (1). Radio communication means (28) is accommodated in the salient (42c).SELECTED DRAWING: Figure 6b

Description

  The present invention relates to an electronic device, and more particularly to an electronic device provided with wireless communication.

  In recent years, multifunctional mobile phones (smartphones) equipped with an application execution function such as a camera function, a network browser function, a wireless communication function, and an e-mail in addition to the mobile phone function are on the market. This smart phone is equipped with a wireless local area network (WLAN), Bluetooth (registered trademark), an IC (Integrated Circuit) card system, and the like as a wireless communication function. In the IC card system among them, when another IC card called a target approaches a device called an initiator that transmits an RF (Radio Frequency) field (magnetic field), the IC card is supplied with power by electromagnetic induction, Perform data transfer.

  NFC (Near Field Communication) has been established as a communication protocol in the IC card system. Recently, the digital camera market is also equipped with NFC, and it is now possible to automatically launch apps and download app download sites automatically when connected to a smartphone.

  Conventionally, a housing that houses the image forming unit, a power supply unit that is disposed inside the housing, and an outer peripheral wall of the housing that is disposed at a position that is separated from the power supply unit by a communication distance or more, There is an image forming apparatus including a short-range wireless communication board (NFC) having a short-range wireless antenna (Patent Document 1).

JP 2014-96717

  However, in the above-mentioned Patent Document 1, the near-field wireless communication board (NFC) is disposed on the front wall of the housing at a communication distance or more away from the power supply unit, so that the space in the depth direction becomes large, Cannot be thinned.

  In NFC, communication is performed by bringing the other party (mobile terminal, smartphone terminal, etc.) near the plane where the NFC is disposed within about 10 cm. There is a layout restriction that it must not. Therefore, in the case of a digital camera, it is common to arrange on a side part or a bottom part.

  On the other hand, in order to improve the communication performance, it is necessary to increase the NFC antenna size. Therefore, when a large antenna is disposed on the side surface or the bottom surface of the camera body, the camera body becomes thick.

  In NFC communication, when a camera body is brought close to a partner (mobile terminal, smartphone terminal, etc.), an induced current is generated by a magnetic field (electromagnetic wave) generated in an antenna coil from both sides, and this is used as an electromotive force to generate an internal IC. The chip operates and data communication is performed. Due to this operating characteristic, if a metal is placed on the external part that covers the NFC module, an eddy current is generated in the metal and the demagnetizing field due to the eddy current cancels the magnetic field from the antenna coil necessary for communication. Cannot be read.

  For this reason, the NFC exterior part usually uses a resin cover instead of a metal cover. However, when a resin cover is used, the thickness of the camera is increased because a thickness greater than that of the metal cover is required to ensure strength. It was one of the causes.

  Accordingly, an object of the present invention is to improve the wireless communication performance of an electronic device and reduce the size (thinning).

  In order to achieve the above object, the present invention provides an electronic apparatus comprising an apparatus main body (1) and a movable member (2) connected to the apparatus main body (1) by a hinge mechanism so as to be opened and closed. A concave portion (39c) is provided on the surface of the movable member (2) facing the device main body (1), and the surface of the movable member (2) of the movable member (2) is opposed to the surface of the movable body (2). A convex portion (42c) is provided at a position corresponding to the concave portion (39c), and the wireless communication means (28) is housed inside the convex portion (42c).

  ADVANTAGE OF THE INVENTION According to this invention, the wireless communication performance improvement and size reduction (thinning) of an electronic device can be achieved.

1 is an external perspective view of a digital camera according to an embodiment of the present invention. It is a perspective view of the hinge unit which concerns on embodiment of this invention. It is a disassembled perspective view of the NFC module which concerns on embodiment of this invention. It is a disassembled perspective view of the LCD unit which concerns on embodiment of this invention. It is a disassembled perspective view of the LCD unit which concerns on embodiment of this invention. It is a disassembled perspective view of the rear cover unit which concerns on embodiment of this invention. It is a figure which shows the closed state of LCD which concerns on embodiment of this invention. It is a figure which shows the closed state of LCD which concerns on embodiment of this invention. It is a figure which shows the closed state of LCD which concerns on embodiment of this invention. It is a figure which shows the state which opens the LCD which concerns on embodiment of this invention, and is making it communicate.

[Example]
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is an external perspective view of a digital camera (hereinafter abbreviated as a camera) that is an imaging apparatus according to an embodiment of the present invention.

  FIG. 1A shows the front side of the camera (subject side), FIG. 1B shows the back side (photographer side), and FIG. 1C shows the state where the display unit swings and faces the camera. The front side of the camera (subject side) and FIG. 1D are external perspective views of the back side of the camera (photographer side) in a state where the display unit swings and is directed to the front of the camera.

  FIGS. 1A to 1D show a state in which the lens unit 3 is extended with the power turned on. When the power is turned off, the lens unit 3 is retracted to a position where it does not protrude from the camera body (apparatus body) 1. The

  The display unit (movable part) 2 is supported by a hinge mechanism (described later with reference to FIGS. 2 to 3) so as to be rotatable within a predetermined angle range with respect to the camera body 1, and a flexible wiring board (FIGS. 2 and 4). , Which will be described later in detail). 1 (a)-(b) shows a state in which the display unit 2 is closed with respect to the camera body 1, and FIGS. 1 (c)-(d) show a state in which the display unit 2 is opened with respect to the camera body 1. FIG. Is shown.

  For example, a liquid crystal panel unit or the like is used as the display unit 2a, and displays an image for confirming a composition at the time of shooting and a reproduced image. The display unit 2a incorporates a capacitive touch panel. Touching the screen with your finger allows you to make settings for shooting, playback of recorded images, image enlargement / reduction, image forwarding / editing, communication settings, etc. Various operations are possible. The display unit 2a can also display shooting conditions such as shutter speed and aperture value, the number of shots, a menu, and the like.

  The lens unit 3 includes an imaging optical system, a lens barrier, a photoelectric conversion element, a lens driving mechanism diaphragm, a shutter, and the like. The lens unit 3 is configured so that a subject image is formed on an image sensor by a photographing optical system. The power button 4 is an operation member that turns on or off the power of the camera.

The mode switching lever 5 is an operation member that switches a shooting mode (for example, still image mode, moving image mode, continuous shooting single shooting mode switching, scene mode switching) at the time of shooting. The communication button 6 is an operation member that starts wireless communication such as Wi-Fi. The playback button 7 is an operation member that, when pressed, makes a transition from the shooting mode to the playback mode and displays a still image or a moving image recorded on the display unit 2a. If the playback button 7 is pressed from the power-off state, the camera can be activated in the playback mode. The terminal cover 8 is supported so as to be slidable and rotatable with respect to the camera body 1. When the terminal cover 8 is opened, external connection terminals such as a USB terminal and an HDMI (registered trademark) terminal are exposed.

  The strap base 9 is a strap base for passing a strap string (not shown), and two strap bases 9 are formed on the left side surface and the right side surface of the camera. The battery cover 10 is held so as to be slidable and rotatable with respect to the camera body 1. When the battery cover 10 is opened, the battery can be inserted and removed. The card lid 11 is supported so as to be slidable and rotatable with respect to the camera body 1. When the card cover 11 is opened, the recording medium can be inserted and removed.

  The illumination window 12 is made of a transparent member, and guides and diffuses light from a light emitting element disposed inside the camera. This illumination is configured to emit light during low-illuminance shooting (during still image shooting or movie shooting) or during AF (autofocus) operation during low-illuminance.

  The NFC cover 15 (42) is a part that performs communication using NFC, and actually performs communication by bringing the NFC cover 15 (42) closer to the other party (mobile terminal, smartphone terminal, etc.) within about 10 cm. I can do it.

  The zoom ring 13 has a ring shape and is arranged around the lens unit 3. The zoom ring 13 is configured to rotate within a predetermined angle range in the P direction and Q direction (shown in FIG. 1A) about the optical axis of the lens unit 3 with respect to the camera body 1.

  When the zoom ring 13 is rotated in the P direction, the lens unit 3 is configured to zoom toward the TELE side and when rotated in the Q direction, the lens unit 3 zooms toward the WIDE side. The zoom ring 13 is configured to return to the neutral position by a spring (not shown) when the photographer rotates the zoom ring 13 and then releases the finger from the zoom ring 13.

  Concave and convex portions are formed on the entire circumference of the outer diameter of the zoom ring 13 so that the finger grip is improved. The release ring 14 has a ring shape and is arranged around the lens unit 3. The outer diameter of the release ring 14 is formed smaller than the outer diameter of the zoom ring 13, and the release ring 14 is disposed so as to protrude forward of the camera relative to the zoom ring 13. The release ring 14 is configured to slide within a predetermined range with respect to the camera body 1 in the U direction, the L direction, the R direction, and the S direction (shown in FIG. 1A) orthogonal to the optical axis of the lens unit 3. Has been.

  By pressing the release ring 14 in the vertical direction, that is, by operating in the L direction (shown in FIG. 1A) and the U direction (shown in FIG. 1A), the release operation of the camera is performed and still image shooting is performed. Can do. Similarly, the release operation of the camera can also be performed by operating the release ring 14 in the left-right direction, that is, by operating in the U direction (shown in FIG. 1A) and the R direction (shown in FIG. 1A). Can take still pictures.

  Usually, the release button of a camera is composed of a two-stage switch. AF and AE are performed when the first-stage switch (SW1) is turned on by half-pressing the release button, and still image shooting is performed when the second-stage switch (SW2) is turned on by fully pressing the release button. . Similarly, the release ring 14 is constituted by a two-stage switch. The release ring 14 is restricted in movement and is configured to move only within a predetermined range.

  The release ring 14 is configured to return to a neutral position by a spring (not shown) when the vertical or horizontal push operation is finished and the finger is released. FIG. 1 shows a state in which the zoom ring 13 and the release ring 14 are located at the neutral position.

  Next, the configuration of the hinge unit and the configuration of the NFC module will be described in detail with reference to FIGS. FIG. 2 is a perspective view of the hinge unit according to the embodiment of the present invention. FIG. 2A is a perspective view of the hinge unit as viewed from the front side, and FIG. 2B is a perspective view of the hinge unit as viewed from the back side.

  FIG. 3 is an exploded perspective view of the NFC module according to the embodiment of the present invention. FIG. 3A is a perspective view of the NFC module viewed from the front side, and FIG. 3B is a perspective view of the NFC module viewed from the back side.

  Reference numeral 20 denotes a main frame for holding a plurality of internal structural members disposed in the main body, and reference numeral 30 denotes an LCD frame for constituting the display unit 2. Reference numeral 21 denotes a shaft that rotatably supports the main frame 20 and the LCD frame 30, and a flexible wiring board 24 is wound around the shaft 21 in advance along the axis and fixed with a double-sided tape (not shown) or the like. The shaft 21 is inserted into a curled portion 30 a formed on the LCD frame 30, welded by positioning (not shown), and fixed to the shaft 21. Next, the friction plate 22 is inserted into the shaft 21, and both ends of the shaft 21 are passed through holes (not shown) on the arm portion 20 b formed on the main frame 20, and the shaft 21 is prevented from coming off by the E ring 23.

  Further, the main frame 20 and the friction plate 22 are fixed by the caulking pins 26, so that the hinge unit state is obtained. When the LCD frame 30 is swung up to about 180 ° in the direction of arrow A with the shaft 21 as the rotation center from the state of FIGS. 2 (a)-(b), the state of FIGS. 3 (a)-(b) is obtained. At this time, when the shaft 21 sandwiched between the friction plates 22 rotates, friction is generated and rotational torque is obtained. At one end of the flexible wiring board 24, there is a contact connecting portion 24a with a partly exposed pattern, and the contact connecting portion 24a is electrically connected to a main circuit board (not shown).

  Further, the other end of the flexible wiring board 24 has a contact connecting portion 24b in which a part of the pattern is exposed, and the contact connecting portion 24b is electrically connected to a connector 34b of the LCD circuit board 34 (described later in FIG. 4).

  Next, as shown in FIG. 3, the NFC module 28 is fixed to the NFC holder 27 with a double-sided tape (not shown). A shaft 20a formed on the main frame 20 and a through hole 27a formed on the NFC holder 27 are press-fitted and fixed. At one end of the NFC module 28, there is a contact connection portion 28a with a partly exposed pattern, and the contact connection portion 28a is electrically connected to a main circuit board (not shown).

  The NFC module 28 is fixed to the main frame 20 via the NFC holder 27. Since the NFC module 28 is electromagnetically induced when communicating, if there is a metal body in the vicinity, the communication performance is affected. Therefore, the magnetic field from the main frame 20 is suppressed by configuring the NFC holder 27 with resin. .

  Next, a detailed configuration of the display unit 2 will be described with reference to FIGS. 4A and 4B. 4a and 4b are exploded perspective views of the LCD unit according to the embodiment of the present invention. FIG. 4A is a perspective view of the LCD unit as seen from the front side, and FIG. 4B is a perspective view of the LCD unit as seen from the back side.

  An unillustrated half punched convex portion formed on the flat surface portion 33a of the LCD holder 33 and a through hole (not illustrated) formed on the LCD circuit board 34 are fitted and fixed with a double-sided tape (not illustrated). On the LCD circuit board 34, electrical elements of a display driving circuit for driving the display panel and connectors 34a and 34b are mounted.

  The display panel unit 32 is housed in the flat part 33 b of the LCD holder 33, and the flexible wiring board 32 b wired from the display panel unit 32 is wound around the flat part 33 a of the LCD holder 33. At one end of the flexible wiring board 32b wired from the display panel unit 32, there is a contact connection part 32c with a partly exposed pattern, and the contact connection part 32c is electrically connected to the connector 34a of the LCD circuit board 34.

  In the present embodiment, the LCD circuit board 34 is disposed substantially at the center of the display panel unit 32. For example, when the LCD circuit board 34 is arranged on either the left or right side of the display panel unit 32, the periphery of the LCD frame 30 in order to escape the mounted components (electrical elements, connectors 34a, 34b) on the LCD circuit board 34 in the height direction. It is necessary to provide an opening (equivalent to 30d) in the part. In that case, if there is an opening (corresponding to 30d) in the periphery of the LCD frame 30, both ends of the LCD frame 30 are lost, so the width of the central portion of the LCD frame 30 is narrowed, and the strength of the LCD frame 30 itself is reduced. Becomes weaker.

  With the configuration of the present embodiment, the opening 30d (similar to the LCD spacer 35) can be formed in the substantially central portion of the LCD frame 30, and both ends of the LCD frame 30 are connected, so that the strength is ensured. Further, by disposing the mounting components (electric elements, connectors 34a, 34b) on the LCD circuit board 34 in the opening 30d formed in the LCD frame 30, the thickness of the display unit 2 can be reduced. Become.

  The magnet 40 is housed and fixed in a recess (not shown) formed in the LCD cover 31. The magnet 40 is used as a magnetic field generating means, and its position is detected by a magnetic sensor (not shown) disposed in the imaging apparatus main body, and functions as a display screen changeover switch of the display unit 2.

  In general, a giant magnetic resistance (GMR) element or a semiconductor Hall element is used as an element for detecting magnetism in a magnetic sensor. A GMR element is a device that detects a magnetic field parallel to a main surface by using a magnetoresistive effect, and has an property that electrical resistance increases as the magnetic field increases (specifically, nickel, iron, and cobalt are mainly used). Component). The GMR sensor is formed by incorporating this GMR element into the determination circuit. In this embodiment, a threshold value is set for the GMR element, a magnetic field that changes depending on the position of the magnet 40 is detected, and the display screen of the display unit 2 is switched as a switch.

  The opening 31a formed on the LCD cover 31 and the outer shape of the liquid crystal glass 32a formed on the display panel unit 32 are fitted and held. The LCD spacer 35 is held by locking means such as a snap fit mechanism (not shown) formed on the LCD cover 31. The LCD frame 30 is housed in the LCD cover 31, and the magnet 36 is inserted into the through long hole 35 a formed on the LCD spacer 35 from the through deformed hole 30 b formed on the LCD frame 30.

  The use of the magnet 36 is that when the display unit 2 is in a closed state, the display unit 2 itself is attracted by the magnetic force of the magnet 36 and a yoke 43 (described later with reference to FIG. 5), and the display unit 2 takes a photographing posture of the camera body. It is to avoid becoming unstable due to the difference.

  A boss (not shown) formed on the LCD rear plate 39 and a through hole (not shown) formed on the LCD hinge cover 38 are fixed by welding or the like. Further, the through hole 39a formed on the LCD rear plate 39 and the outer diameter of the convex portion of the cushion member 37 are fitted and fixed with a double-sided tape (not shown) or the like. An LCD rear plate 39 is inserted into the LCD cover 31 and is held by a locking means such as a snap fit mechanism (not shown), and is formed on a screw hole 31b formed on the LCD cover 31 and on the LCD rear plate 39. The screw hole 39b and the tap hole 30c formed on the LCD frame 30 are fixed with screws.

  Next, the configuration of the rear cover unit will be described in detail. FIG. 5 is an exploded perspective view of the rear cover unit according to the embodiment of the present invention. FIG. 5A is a perspective view of the rear cover unit viewed from the front side, and FIG. 5B is a perspective view of the rear cover unit viewed from the back side.

  The half punched convex portion 40a formed on the rear cover 40 and the through hole 41a formed on the rear top cover 41 are fitted and fixed by adhesion or the like. The opening 40b formed on the rear cover 40 and the outer periphery 42b formed on the NFC cover 42 are fitted and fixed by adhesion (not shown) or the like. The yoke 43 is fixed with double-sided tape in the range of the marking line 40c formed on the rear cover 40.

  Next, the arrangement relationship between the display unit 2 and NFC will be described in detail. 6a to 6c are diagrams illustrating a closed state of the LCD according to the embodiment of the present invention. FIG. 6 a is a sectional view of the display unit 2. 6B is an AA cross-sectional view showing the arrangement of the display unit 2 and the NFC module 28, and FIG. 6C is a BB cross-sectional view showing the arrangement of the display unit 2 and the NFC module 28.

  A diaphragm shape 39c (concave surface) of the LCD rear plate 39 is formed in the space range of X, which is not shown and is wired on the flexible wiring board 32b wired from the display panel unit 32. The aperture shape 39c and the LCD spacer 35 are set with an appropriate gap.

  The rear cover 40 and the LCD rear plate 39 are set with an appropriate gap when the display unit 2 is closed. The convex surface 42 c formed on the rear cover 40 and the NFC cover 42 is set to have a higher Y height than the rear cover 40. The convex surface 42c is set so as to enter the thickness direction in projection on the aperture shape 39c (concave surface), and the convex surface 42c and the aperture shape 39c (concave surface) are set with an appropriate gap. Since the NFC module 28 is in contact with the flat portion 42b on the NFC cover 42, the NFC module 28 is set so as to protrude in the Y direction from the external surface of the rear cover 40.

  In the present embodiment, an LCD circuit board 34 is disposed at a substantially central portion of the display panel unit 32. A flexible wiring board 32 b wired from the display panel unit 32 passes along both flat portions 33 a of the LCD holder 33 at both ends of the LCD circuit board 34.

  For this reason, since a space portion is formed in the height direction in the range through which the flexible wiring board 32b passes, a diaphragm shape (concave surface) can be disposed in the space portion. With this configuration, when the display unit 2 is in a closed state, the convex surface 42c of the NFC cover 42 can enter the diaphragm shape (concave surface) of the LCD rear plate 39 in the thickness direction, so that the thickness direction of the camera is reduced. be able to.

  In this embodiment, the aperture shape (concave surface) is arranged on the right side when viewed from the rear of the camera, but the aperture shape (concave surface) and the convex surface 42c are arranged on the left side with the flexible wiring board 32b on the left side. However, the same effect as the present invention can be obtained.

  Next, the state in which NFC is communicated will be described in detail. FIG. 7 is a diagram illustrating a state in which the LCD according to the embodiment of the present invention is opened for communication. The Z plane is a communication partner (mobile terminal, smartphone terminal, etc.). With the camera display unit 2 open, the back side of the camera faces the communication partner, and the convex surface 42c of the NFC cover 42 approaches the Z plane. By doing so, NFC enters a communication state. In the present embodiment, there is a rotation mechanism of the hinge unit, and there is a protrusion of the rear top cover 41 at that portion, so that it does not come into close contact during NFC communication.

  However, since it protrudes from the rear cover 40 to the convex surface 42c of the NFC cover 42, it is possible to maintain a sufficiently close distance from the communication partner, so there is no influence on the performance deterioration of the NFC communication distance. In the present embodiment, the NFC module 28 is arranged on the camera body side, but even if the aperture shape 39c of the rear plate 39 is a flat surface and the NFC module 28 is arranged in the space, the thickness of the camera body does not change. The same effect as the present invention can be obtained. As mentioned above, although preferable embodiment of this invention was described, this invention is not limited to these embodiment, A various deformation | transformation and change are possible within the range of the summary.

1 camera body, 2 display unit, 28 NFC module,
39c Diaphragm shape (LCD rear plate 39): recess,
42c Convex surface (NFC cover 42): Convex portion

Claims (4)

In an electronic device composed of a device main body (1) and a movable member (2) connected to the device main body (1) by a hinge mechanism so as to be opened and closed, the device main body (1) of the movable member (2) is provided. ) Is provided on the surface opposite to the concave portion (39c), and the convex portion (39c) is provided at a position corresponding to the concave portion (39c) of the movable member (2) on the surface facing the movable member (2) of the device body (1). 42c), and the wireless communication means (28) is housed inside the convex portion (42c). The display panel unit (32) is provided with a circuit board (34) at the center and flexible wiring boards (32b) wired from the display panel unit (32) at both ends. 2. The electronic apparatus according to claim 1, wherein the concave surface (39c) is disposed in a range through which the flexible wiring board (32b) passes. The electronic device according to claim 1, wherein the convex portion (42 c) is made of a resin. The electronic device according to any one of claims 1 to 3, wherein the movable member (2) includes the display panel unit (32).