JP2011035766A - Imaging apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an imaging apparatus capable of laying a cable around within a narrow gap when laying a plurality of cables collectively between cases, thereby being made thin in thickness and small in size. <P>SOLUTION: The imaging apparatus includes a display portion case 2, a body case 3, a hinge unit 13, and a wire harness 19 laid between the display portion case 2 and the body case 3 via the hinge unit 13. The hinge unit 13 and a main circuit board 16 of the body case 3 are disposed oppositely with each other with a lens barrel unit 15 of a photographing lens therebetween. The wire harness 19 includes a laminated portion 28 which is laminated on a sheet 27 in the state where cables are aligned between the hinge unit 13 and the main circuit board 16. The wire harness 19 is laid in a gap where the laminated portion 28 is held between a display portion case housing section 6 of the body case 3 and a back surface side or a side surface side of the lens barrel unit 15 of the photographing lens. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an imaging apparatus having a structure in which substrates disposed in two housings connected via a hinge portion are connected by a wire harness composed of a plurality of cables.

  2. Description of the Related Art Conventionally, an imaging apparatus (digital) has a structure in which a so-called vari-angle type image display unit that allows a photographer to check a subject image from various angles is rotatably attached to an imaging apparatus body via a hinge unit. Cameras, video cameras, etc.) are widespread.

  In an imaging device equipped with a vari-angle image display unit, the image display unit is opened sideways with respect to the imaging device body so that the photographer can shoot while checking the subject even at high or low angles. It can be rotated to various angles. By rotating the image display unit with respect to the imaging apparatus main body, the photographer can also take a picture of himself / herself. An imaging device equipped with a vari-angle image display unit is also required to be easy to handle and small in size so that a photographer can reliably hold the imaging device.

  Due to the above demands, an image pickup in which a hinge part to which a vari-angle type image display part is attached and a main circuit board arranged inside the image pickup apparatus main body are arranged at positions opposite to each other with a photographing lens barrel interposed therebetween. An apparatus has been proposed (see, for example, Patent Document 1). In the imaging device of Patent Document 1, the grip portion and the hinge portion for holding the imaging device are positioned on the opposite sides with respect to the imaging device body by arranging the hinge portion and the main circuit board in the above-described arrangement. Therefore, it is easy to hold and operability is good.

  In the imaging device, when the display surface side of the image display unit is folded toward the photographer side and is stored in the imaging device body, the optical axis of the imaging lens barrel is the same as that of a general digital camera. Since the display surfaces overlap each other, the photographer can use the display without a sense of incongruity. In addition, since the photographing lens barrel and the main circuit board inside the imaging apparatus main body are arranged so as not to overlap in the optical axis direction, the thickness of the entire imaging apparatus in the optical axis direction can be reduced.

  On the other hand, there has been proposed an imaging device in which an image display unit attached to the imaging device body via a hinge portion and a main circuit board inside the imaging device body are electrically connected by a wire harness composed of a plurality of cables ( For example, see Patent Document 2). In the imaging device of Patent Document 2, a wire harness in which a plurality of cables are bundled from the image display unit side passes through the inside of a rotating shaft disposed in the hollow portion of the hinge portion and is wired to the main circuit board on the imaging device body side. ing.

JP 2007-36703 A JP 2001-248629 A

  In the wiring configuration of the wire harness connecting the image display unit side and the imaging apparatus main body side in the above-described conventional example, the wire harness is used between the hinge unit and the main circuit board positioned opposite to each other with the photographing lens barrel interposed therebetween. There are the following methods for connection.

  First, there is a method of arranging and connecting a wire harness on the back side of the taking lens barrel. In this method, a sufficient space is required between the back cover of the imaging device main body and the photographing lens barrel so as not to be caught even when the cables cross and overlap each other, which is an obstacle to thinning the imaging device. It becomes.

  Next, there is a method of relaying from the main circuit board to the vicinity of the hinge part by a flexible printed circuit board (FPC) and then connecting to the wire harness on the image display part side. In this method, since a thin relay FPC can be arranged on the back side or side surface of the photographing lens barrel, it is advantageous for downsizing and thinning of the image pickup apparatus, but the connection by the relay FPC and the connector is increased. Increase in the number of parts and cost increase occur. Further, when impedance control is required for the wiring between the image display unit and the main circuit board, there is a problem that the impedance is disturbed due to the large number of connections by the connector, and there is a concern that the signal quality may be deteriorated.

  Furthermore, there is a method in which everything from the main circuit board on the imaging apparatus main body side to the image display unit is connected by FPC. This method requires a complicated wiring method for passing the FPC through the hinge portion having a biaxial hinge mechanism that connects the image display portion and the imaging device body, and the entire imaging device including the hinge portion can be reduced in size. There is a problem that it is not suitable for the plan.

  An object of the present invention is to enable a reduction in thickness and size by enabling a cable to be routed through a narrow gap when wiring a plurality of cables between the casings. An imaging device is provided.

  In order to achieve the above object, an imaging apparatus according to the present invention includes a first housing, a second housing, a hinge portion that couples the first housing and the second housing, A wire harness composed of a plurality of cables wired between the first housing and the second housing via the hinge portion, and the wire harness disposed in the second housing are connected to each other. And the wire harness has a flat portion covered with a sheet member in a state where the plurality of cables are aligned between the hinge portion and the substrate.

  According to the present invention, when a plurality of cables are wired together between the first casing and the second casing of the imaging apparatus, it is not necessary to consider the intersection of the cables. The narrow gap of the housing can be routed. This makes it possible to reduce the thickness and size of the imaging device.

1A and 1B are perspective views showing an external appearance of an imaging apparatus according to an embodiment of the present invention, in which FIG. 1A is a perspective view seen from the front side, and FIG. It is the perspective view which looked at the imaging device from the back side, and (a), (b), (c), and (d) are perspective views showing an example of the transition of the state of the display part case of an imaging device. It is the disassembled perspective view seen from the back side in the state which opened the display part housing | casing of the imaging device to the outer side of the main body housing | casing, and faced the display surface of the display panel to the to-be-photographed object side. It is the perspective view which expanded the periphery of the hinge unit of an imaging device.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view showing an external appearance of an imaging apparatus (digital camera) according to an embodiment of the present invention, where (a) is a perspective view seen from the front side, and (b) is seen from the back side. It is a perspective view.

  In FIG. 1, an imaging apparatus (digital camera) 1 according to the present embodiment includes a vari-angle display unit housing 2 (first housing) having a display panel 5 and a body housing 3 (on the camera body side). A second housing) and a hinge portion 4 for connecting the display housing 2 and the main housing 3. The hinge portion 4 has a so-called biaxial hinge mechanism. Thus, the display unit housing 2 is connected to the main body housing 3 via the hinge unit 4 so as to be openable and closable and rotatable. Since the main body housing 3 and the display unit housing 2 are connected by the hinge unit 4, the photographer can freely change the angle of the display unit housing 2 according to the posture to perform photographing, You can shoot while checking the subject even at low angles.

  FIG. 2 is a perspective view of the digital camera as viewed from the back side, and (a), (b), (c), and (d) are perspective views showing an example of state transition of the display unit housing of the digital camera. FIG.

  In FIG. 2, the main body housing 3 of the digital camera 1 has a display section housing when the display housing 2 is closed with respect to the main body housing 3 as shown in FIGS. A display housing housing 6 for housing the body 2 is provided. The display unit housing 2 has an open state that opens outward with respect to the main body housing 3 and a closed state that is housed in the display unit housing housing unit 6 of the main body housing 3.

  FIG. 2A shows a state in which the display surface of the display panel 5 is directed to the photographer side, and the display unit housing 2 is closed to the main body housing 3 side and stored in the display unit housing storage unit 6. Show. This state is suitable when the digital camera 1 of the present embodiment is used in the same manner as a general digital camera that does not have a vari-angle display unit.

  FIG. 2B shows a state in which the display surface of the display panel 5 is hidden (a state opposite to the photographer side) and the display unit housing 2 is closed to the main body housing 3 side. The state accommodated in the body accommodating part 6 is shown. In this state, since the display surface of the display panel 5 is not exposed to the outside of the digital camera 1, the display surface of the display panel 5 is not damaged, and the display surface of the display panel 5 is protected when the digital camera 1 is not used. Suitable if you want to.

  FIG. 2C shows a state in which the display unit housing 2 is opened to the outside of the main body housing 3 and the display surface of the display panel 5 is directed to the photographer side. This state is suitable for various shooting situations because the photographer can freely change the angle of the display surface of the display panel 5 in accordance with the camera angle.

  FIG. 2D shows a state in which the display unit housing 2 is opened to the outside of the main body housing 3 and the display surface of the display panel 5 is directed to the subject side. This state can be taken while confirming the display surface of the display panel 5 from the subject side, and thus is suitable when the photographer takes his / her own picture (self-shooting) or self-timer shooting.

  Next, a configuration of internal connection between the display unit housing 2 side and the main body housing 3 side of the digital camera will be described with reference to FIG.

  FIG. 3 is an exploded perspective view seen from the back side in a state where the display unit housing of the digital camera is opened outside the main body housing and the display surface of the display panel faces the subject side.

  In FIG. 3, a display panel unit 31 including a display panel 5 and a backlight unit, and a display unit circuit board 7 on which a circuit related to display driving of the display panel 5 is mounted are arranged inside the display unit housing 2. Yes. A connector 10 a and a connector 10 b are mounted on the display unit circuit board 7. The display panel flexible printed circuit board (hereinafter referred to as display panel FPC) 8 is connected to the display panel 5 and the connector 10a. The backlight FPC 9 is connected to the backlight unit and the connector 10b. The display panel unit 31 is connected to the connector 10a via the display panel FPC8 and is connected to the connector 10b via the backlight FPC9.

  The display unit housing 2 and the main body housing 3 are connected by a hinge unit 13 (hinge unit). The hinge unit 13 is fixed to the main chassis 14 with screws on the main body housing 3 side. A photographing lens barrel unit 15 is disposed inside the main body housing 3. Further, a main circuit board 16 is disposed inside the main body housing 3 on the opposite side of the hinge unit 13 with the photographing lens barrel unit 15 interposed therebetween. On the main circuit board 16, various electronic components that control the entire digital camera and perform signal processing are mounted. By not arranging the taking lens barrel unit 15 and the main circuit board 16 so as to overlap each other in the optical axis direction of the taking lens barrel unit 15, it is effective to reduce the thickness of the entire digital camera.

  The display unit circuit board 7 and the main circuit board 16 are connected by a wire harness 19 in which a plurality of cables inserted through the hinge unit 13 are bundled. The wire harness 19 includes a connector part 12 for connecting to the display unit circuit board 7 and a connector part 18 for connecting to the main circuit board 16 at both ends thereof. The connector 12 of the wire harness 19 is connected to the connector 11 mounted on the display circuit board 7, and the connector 18 of the wire harness 19 is connected to the connector 17 mounted on the main circuit board 16.

  Next, a detailed configuration of the wire harness 19 inserted through the hinge unit 13 of the digital camera will be described with reference to FIG.

  FIG. 4 is an enlarged perspective view of the periphery of the hinge unit of the digital camera.

  In FIG. 4, the hinge unit 13 rotates opening / closing shafts 21 a and 21 b for opening and closing the display unit housing 2 with respect to the main body housing 3 and the display unit housing 2 with respect to the main body housing 3. The rotating shaft part 22 for performing is provided. The hinge unit 13 corresponds to the internal mechanism of the hinge part 4 shown in FIG. Each of the hollow opening / closing shaft portion 21 a and the rotating shaft portion 22 of the hinge unit 13 has a hollow portion through which a plurality of cables constituting the wire harness 19 can be inserted. The plurality of cables constituting the wire harness 19 are wired along the path described in FIG. 3 by being inserted through the hollow portions of the opening / closing shaft portion 21 a and the rotating shaft portion 22.

  The wire harness 19 inserted through the hollow portions of the opening / closing shaft portion 21a and the rotating shaft portion 22 of the hinge unit 13 is bundled so that the cross-sectional shapes of a plurality of cables are substantially circular, and the tape 23 is spirally formed. It is configured as a wrapping part by being wound. As the tape 23 for wrapping a plurality of cables constituting the wire harness 19, it is desirable to use a slidable, strong and soft tape. Thereby, the damage | damage and disconnection by the friction of cables, etc. are prevented, and the opening / closing and rotation durability of the display part housing | casing 2 via the hinge unit 13 with respect to the main body housing | casing 3 is improved.

  Further, two cables branched from the wire harness 19 inserted through the hollow portions of the opening / closing shaft portion 21a and the rotating shaft portion 22 of the hinge unit 13 are connected to a rotation detection switch board (hereinafter referred to as a rotation detection SW board) by soldering. ) 24. On the rotation detection SW board 24, a detection switch (hereinafter referred to as detection SW) 25 for detecting rotation of the display unit housing 2 with respect to the main body housing 3 is mounted. A cam member 26 that is fixed to the display unit housing 2 side and operates in accordance with the rotation of the display unit housing 2 is provided on the rotation shaft portion 22 of the hinge unit 13. The detection SW 25 is turned ON / OFF according to the operation of the cam member 26. Thereby, the rotation operation of the display unit housing 2 with respect to the main body housing 3 is detected.

  The display housing 2 is provided with two magnets 29 a and 29 b, and the main body housing 3 is provided with a magnetic sensor 30. That is, the open / close state of the display unit housing 2 is detected by the magnets 29 a and 29 b and the magnetic sensor 30. When the display unit housing 2 is closed to the main body housing 3, the magnetic sensor 30 detects that the magnets 29 a and 29 b approach the magnetic sensor 30. Here, when the display unit housing 2 is rotated and the display surface of the display panel 5 faces front or back (photographer side / subject side), the magnets 29a and 29b are kept in the state where the display unit housing 2 is closed. Is set to be located in the detection region of the magnetic sensor 30. Thereby, it is possible to detect the open / closed state of the display unit housing 2 even when the display surface of the display panel 5 faces front or back.

  In a state where the wire harness 19 is wrapped by the tape 23, the wire harness 19 exits from the hollow portion of the opening / closing shaft portion 21 a of the hinge unit 13 and is bent toward the main body housing 3 at an angle of approximately 90 ° (in an L shape). . Then, it is covered with the sheet 27 (sheet member) and wired as a laminate portion 28 (flat portion). That is, between the hinge unit 13 and the main circuit board 16, the sheet harness 27 is laminated so that the cables of the wire harness 19 are aligned so as not to overlap each other, so that the laminate 27 is sandwiched from the front and back. 28 is constituted.

  The laminating portion 28 of the wire harness 19 is attached and fixed to the main chassis 14 on the back surface of the photographing lens barrel unit 15 with double-sided tape so that the housing of the display unit provided in the photographing lens barrel unit 15 and the rear cover 20 is accommodated. Pass the gap with the part 6 (FIG. 3). Furthermore, the laminate part 28 of the wire harness 19 is wired to the vicinity of the main circuit board 16 (FIG. 3). In the present embodiment, the laminating portion 28 of the wire harness 19 is only on the back side of the photographic lens barrel unit 15. In front of the connection portion between the connector 17 of the main circuit board 16 and the connector portion 18 (FIG. 3) of the wire harness 19, the cable constituting the wire harness 19 is in a free state.

  In a digital camera, the size of the taking lens barrel unit 15 is a factor that determines the width, height, and thickness of the entire digital camera. Therefore, the space for wiring of the wire harness 19 that connects between the hinge unit 13 and the main circuit board 16 that are opposite to each other with the photographing lens barrel unit 15 in between directly affects the dimensions of the digital camera. give.

  Normally, when routing (wiring) a bundle of cables, it is necessary to consider the overlapping of the cables, so it is necessary to secure a large gap for wiring the bundled cables. Further, in order to hold the bundled cables, for example, it is necessary to provide a claw portion for hooking the cables or a groove for sandwiching the cables, so that more space is required.

  However, in the present embodiment, the laminate portion 28 of the wire harness 19 is laminated by the sheet 27 in a state where the cables are aligned so as not to overlap each other. It can be considered that the thickness is constant. In addition, the surface on the photographing lens barrel side of the laminate portion 28 of the wire harness 19 can be easily fixed to the main chassis 14 on the back side of the photographing lens barrel unit 15 with double-sided tape. Does not require a large space.

  That is, since the wire harness 19 can be routed through a narrow gap inside the main body housing 3, it is effective for making the digital camera thinner and smaller. In particular, in the configuration in which wiring is performed so that the laminate portion 28 of the wire harness 19 is arranged on the back side of the photographing lens barrel unit 15 as in the present embodiment, the space for wiring is the height dimension of the digital camera. Is not affected, and there is little influence on the thickness direction.

  In the present embodiment, the laminating portion 28 of the wire harness 19 is wired to the back side of the photographing lens barrel unit 15, but the laminating portion 28 of the wire harness 19 is arranged on the side surface side of the photographing lens barrel unit 15. You may wire to. In this case as well, it is effective for making the digital camera thinner and smaller. In particular, wiring can be performed with little influence on the height direction of the digital camera without affecting the thickness dimension of the digital camera.

  In the present embodiment, as described above, the laminate portion 28 of the wire harness 19 can be easily fixed to the main chassis 14 on the back side of the taking lens barrel unit 15 with a double-sided tape. Therefore, it is not only advantageous in terms of space because it is not necessary to provide a claw part for hooking the cable or a groove for pinching the cable, but when the cable is processed so as not to be exposed to the claw part or groove. Compared with, assembly workability is much better.

  Further, in the present embodiment, as described above, the laminate portion 28 of the wire harness 19 is wired in a straight shape (straight shape) and is attached and fixed to the main chassis 14, but near the main circuit board 16. Then the cable is free. Therefore, the position of the connector 17 connected to the wire harness mounted on the main circuit board 16 can be given a degree of freedom, and the workability when connecting the connector during assembly is also good. Here, the laminate portion 28 is preferably a straight shape in terms of processing, but is not limited to a straight shape.

  Further, in the present embodiment, the wire harness 19 is wrapped by the tape 23, and after leaving the hollow portion of the opening / closing shaft portion 21a of the hinge unit 13, it is approximately 90 ° between the laminate portion 28 by the sheet 27. It is set as the structure bent at the angle of (L shape). Therefore, the twist of the cable of the wire harness 19 due to the opening / closing operation of the hinge unit 13 is not transmitted to the laminate portion 28, so that the cable overlaps at the pasting end portion of the sheet 27 or the sheet 27 is peeled off. There is no.

  Moreover, in this Embodiment, as a countermeasure against the unnecessary radiation from the cable of the wire harness 19, it is possible to simultaneously suppress unnecessary radiation by using a radio wave absorbing sheet or a copper foil sheet for the sheet 27.

  As described above in detail, according to the present embodiment, when a plurality of cables are wired together between the display unit housing 2 and the main body housing 3 of the imaging apparatus, the intersection of the cables is considered. Since it becomes unnecessary, the cable can be routed through a narrow gap in the main body housing 3. This makes it possible to reduce the thickness and size of the imaging device.

[Other Embodiments]
Although the preferred embodiments of the present invention have been described in the above embodiments, the present invention is not limited to the above embodiments, and various modifications and changes can be made within the scope of the gist of the present invention.

2 Display unit housing 3 Main unit housing 13 Hinge unit 15 Shooting lens barrel unit 16 Main circuit board 19 Wire harness 28 Laminating unit

Claims (6)

A first housing;
A second housing;
A hinge portion connecting the first housing and the second housing;
A wire harness comprising a plurality of cables wired between the first housing and the second housing via the hinge portion;
A board disposed in the second housing and connected to the wire harness,
The imaging apparatus according to claim 1, wherein the wire harness includes a flat portion covered with a sheet member in a state where the plurality of cables are aligned between the hinge portion and the substrate. A photographing lens barrel is disposed in the second casing,
The hinge part and the substrate are arranged at positions opposite to each other with the photographing lens barrel interposed therebetween,
The imaging apparatus according to claim 1, wherein the wire harness is wired so that the flat portion is arranged on a back side or a side of the photographing lens barrel. The second casing has a storage section capable of storing the first casing,
The first housing has an open state that opens outward with respect to the second housing, and a closed state that is housed in the housing portion of the second housing,
The wire harness is wired so that the flat portion is disposed in a gap sandwiched between the storage portion of the second casing and the back side or the side of the photographing lens barrel. The imaging device according to claim 2.   The imaging apparatus according to claim 3, wherein the flat portion is fixed on a surface on the photographing lens barrel side. The hinge portion includes a hollow opening / closing shaft portion for opening and closing the first housing with respect to the second housing, and the first housing with respect to the second housing. It has a hollow rotating shaft part for performing rotation,
The wire harness is inserted through the hollow portions of the opening / closing shaft portion and the rotating shaft portion of the hinge portion, and comes out of the hollow portion and has an L-shape on the second housing side. The imaging apparatus according to claim 1, wherein the imaging apparatus is wired as the flat portion after being bent.   The imaging apparatus according to claim 1, wherein the sheet member is a radio wave absorbing sheet or a copper foil sheet.