JP2014123026A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera which has an optimal layout of a wireless communication board and high shielding effect.SOLUTION: A main capacitor and a lens barrel driving motor are juxtaposed in a vertical direction of the camera in parallel with a cylinder center axis, the main capacitor and a strobe light emission part are projected from the lens barrel driving motor in an X direction, a wireless communication board is arranged on a step formed by them and the lens barrel driving motor, and a wireless connection flexible board is held between a bezel and a chassis of a liquid crystal display unit or between the chassis and a metal cover to take a countermeasure for shielding. Further, a tabular component containing metal is stuck to the outside of the cover in an area wider than the outside shape of the wireless connection flexible circuit board.

Description

  The present invention relates to a wireless communication substrate of a camera having a wireless communication function, and a layout structure of a flexible wiring substrate for connecting the wireless communication substrate and a main substrate.

  In recent years, an increasing number of cameras are equipped with a wireless communication antenna for wirelessly communicating with an access point without connecting a captured image with a wire. In addition, it is desired to make the appearance of the wireless communication antenna the same as other appearance parts without any particular emphasis on the camera design.

  Further, since the user often selects an image to be transferred while holding the camera in the use state, it is desired to provide a camera capable of wireless communication even in the camera hold state.

  Conventionally, as a countermeasure for shielding a camera equipped with this type of wireless communication antenna, as disclosed in Patent Document 1, a configuration is disclosed in which a groove is provided in a chassis, a flexible substrate is embedded, and a lid is covered with a metal plate.

JP 2008-151841 A

  However, since the conventional example is provided with a separate metal lid, there is a problem in that the number of parts increases and the cost increases. In addition, since there is no flexible substrate arranged in parallel and close, it is not suitable when a plurality of flexible substrates are arranged in proximity as in the present invention.

  There are various restrictions on the arrangement of the wireless communication substrate or the wireless communication antenna. For example, if it is placed under a metal appearance part or in a place where it is covered with the camera user's hand, the communication distance is significantly reduced, and data transfer takes time. Or, there is a high possibility that communication cannot be performed. Furthermore, the elements around the antenna for wireless communication often have heat, and there is a restriction that they cannot be placed in places where the photographer can easily touch.

  Considering a product whose entire appearance is made of molded resin in order to reduce the price, the influence on the human body due to the radiation noise from the radio communication antenna must be taken into consideration.

  Considering usability, the wireless communication substrate is preferably arranged in a place where it is difficult for the user of the camera to touch. Also, it is preferable that the design is neatly arranged in a plane without providing a convex portion for a radio communication antenna. Therefore, it is desirable to arrange the wireless communication substrate on the side opposite to the camera grip side.

  However, if the board for wireless communication is placed on the opposite side of the camera grip, the flexible wiring board for connection with the main board on which the central processing unit of the camera is mounted is often long, and radiation noise is likely to occur. It becomes weak against static electricity. In order to suppress the radiation noise, it is desirable to cover the connection flexible substrate serving as a noise generation source with a metal body electrically connected to the ground potential.

  In addition, in a camera configured by mixing a metal cover and a mold cover, it is desired that the split positions of the covers be arranged as inconspicuous as possible. Furthermore, in a camera whose appearance is entirely composed of a mold, it is necessary to provide a separate shield plate inside the camera, and there is a problem that costs are increased.

  In view of such problems, the present invention provides a strobe-issuing capacitor and a lens barrel driving motor with a wireless communication board on the side opposite to the grip of the camera and with the cylindrical central axis parallel to the vertical direction of the camera. Arrange the strobe light-emitting capacitor and strobe light-emitting part from the lens barrel drive motor in the lateral direction of the camera, and arrange the wireless communication board at the step with the lens barrel drive motor. A flexible wiring board that electrically connects the main board and the main board, between the liquid crystal bezel and the main chassis to which each unit is mounted and electrically connected, or between the chassis and the metal cover It is characterized by a shield measure between them.

  In addition, by covering the flexible wiring board that could not be sandwiched between the chassis and the metal cover with a plate-like member containing a metal that constitutes the appearance, radiation noise from the flexible wiring board is suppressed and the human body is affected. In addition, legal compliance such as radio wave law becomes possible.

  The present invention is to provide a camera that is small and difficult to conceal with a photographer's finger to provide a camera that is not conspicuous in terms of design and to take measures against radiation noise from a flexible substrate for wireless connection. The object is to reduce the influence on the human body and to efficiently diffuse the heat generated from the elements on the board for wireless communication to prevent the destruction and malfunction of the equipment due to the heat.

The longitudinal cross-sectional view of the camera which concerns on the Example of this invention (AA cross-section schematic diagram of FIG. 6) 1 is a perspective view of a main flexible board and a main board according to an embodiment of the present invention. 1 is an exploded perspective view of a flexible substrate for connection, a main chassis, and liquid crystal according to an embodiment of the present invention. Rear layout of main board and component unit according to an embodiment of the present invention The perspective view of the main chassis which concerns on the Example of this invention External perspective view of a camera embodying the present invention The disassembled perspective view of the board containing the flexible substrate for a connection, rear cover unit, and metal which concerns on the Example of this invention.

  Hereinafter, the present invention will be described in detail with reference to the drawings.

  FIG. 1 to FIG. 7 are diagrams showing an embodiment of the present invention, in which the same reference numerals denote the same members.

  FIG. 1 is a longitudinal sectional view of a camera according to an embodiment of the present invention, and represents a cross section taken along the line AA of FIG. FIG. 2 is a perspective view of a main flexible board and a main board according to an embodiment of the present invention. FIG. 3 is an exploded perspective view of the connecting flexible substrate, the main chassis, and the liquid crystal according to the embodiment of the present invention. FIG. 4 is a rear layout view of main substrates and constituent units according to an embodiment of the present invention. FIG. 5 is a perspective view in which a main chassis and a wireless communication board according to an embodiment of the present invention are attached. FIG. 6 is an external perspective view of a camera embodying the present invention. FIG. 7 is an exploded perspective view of a flexible board for connection, a rear cover unit, and a plate containing metal according to an embodiment of the present invention.

  1 to 7, reference numeral 1 denotes a front cover that constitutes the external appearance of the camera, and reference numeral 2 denotes a rear cover that constitutes the external appearance of the camera. Reference numeral 3 denotes an LCD panel, which is a liquid crystal display unit that displays a subject image and various operation icons during camera shooting. 4 includes a photographic lens described later, and a lens barrel 21 having a zoom mechanism, a focusing mechanism, and the like, a battery box unit (not shown), a strobe light emitting unit described later, and the like are fixed to form an electric ground potential. Main chassis made of sheet metal. Reference numeral 5 denotes a known strobe light emitting unit for enabling photographing in a dark place. Reference numeral 11 denotes a wireless communication board on which a communication antenna and attached elements are mounted. The wireless communication board 11 is fixed to the main chassis 4 with mounting screws 6. Reference numeral 14 denotes a main board equipped with a CPU which is a central processing unit of the camera and provided with a connector for electrically connecting each flexible wiring board.

  Reference numeral 12 denotes a wireless connection flexible board for electrically connecting the main board 14 and the wireless communication board 11 so that the main board 14 can be inserted into a connection connector on the main board 14 and the wireless communication board 11. It is configured. Reference numeral 21 denotes a known lens barrel equipped with a photographing lens, a zoom mechanism, a photoelectric conversion element, a shutter mechanism, and the like. Reference numeral 22 denotes a light emitting capacitor for accumulating electric charges of the known strobe light emitting unit 5. A lens barrel driving motor 23 is attached to the lens barrel 21 and moves the zoom lens to a desired zoom position. Reference numeral 13 denotes a flexible substrate for connecting a lens barrel driving motor that enables electrical connection between the lens barrel driving motor 23 and the main substrate 14. Reference numeral 15 denotes a metal-containing or metal plate or sheet-like member. The plate 15 constitutes a rating plate with the name of the camera, the regulatory mark, the place of origin, and the production number. Alternatively, it may be a logo mark or a decorative member that constitutes a part of the appearance. The plate 15 is sized so as to cover the wireless connection flexible substrate 12 that wraps around below the camera, and is affixed to the exterior side of the rear cover 2 with a double-sided tape (not shown).

  The wireless communication board 11 is arranged by utilizing the diameter difference between the light emitting capacitor 22 and the lens barrel driving motor. The wireless connection flexible board 12 and the lens barrel driving motor connection flexible board 13 are arranged so as not to overlap each other in the Y direction as shown in FIG. 1, and the wireless connection is made in the recess 4 a of the main chassis 4. A flexible substrate 12 is disposed. The main chassis 4 is electrically connected to the main board 14 by a screwing portion (not shown) to be a ground potential.

  With the above configuration, as shown in FIG. 4, the wireless communication board 11 is arranged in the difference in diameter between the large-diameter light emitting capacitor 22 and the small-diameter lens barrel driving motor 23, so that the lateral size of the camera can be increased. A camera capable of wireless connection can be provided without increasing the size. In addition, by arranging the wireless communication board 11 at a position where the finger of the user of the camera is rarely touched, the reach of wireless communication is secured, and the elements on the wireless communication board 11 are heated during driving. However, there is an advantage that the photographer is not disturbed.

  Further, the lens barrel driving motor connecting flexible substrate 13 and the wireless connecting flexible substrate 12 are arranged so as to be shifted in the Y direction of the camera as shown in FIG. 2, and between the two flexible substrates as shown in FIG. The wireless connection flexible board 12 is interposed between the main chassis 4 and the bezel that is the metal body of the liquid crystal display unit 3, and the wireless connection flexible board 12 is radiated from the wireless connection flexible board 12. Electromagnetic noise can be suppressed, and the camera can be prevented from being destroyed by external static electricity. In addition, since the wireless communication board 11 is fixed to the main chassis 4 with 61 screws, it is difficult to be affected by surrounding metal, and it is possible to increase the reach of radio waves. In addition, since an element (not shown) on the wireless communication board 11 increases the amount of heat generated when the communication time is extended, there is a possibility that the circuit is destroyed due to the heat generated by the element.

  In the present invention, the tongue portion (4b) for heat escape is provided at the tip of the screw fixing portion as shown in FIG. 5, so that the heat conduction can be efficiently performed and the above-described problems are prevented. It became possible. Further, the front cover (1) can be prevented from being deformed by bringing the tongue piece (4b) into contact with the front cover (1). When the front cover (1) is made of metal, there is Can also release heat.

  Furthermore, since a metal cover cannot be disposed on the wireless communication substrate 11, the substrate must be a mold cover. If the embodiment of the present invention is used, since the board for wireless communication is arranged on the side of the camera where the boundary line between the metal cover and the mold cover is hardly noticeable even if it slightly changes, the boundary line between the metal cover and the mold cover. The degree of freedom in design can be increased, and the camera can be finished as if it were not capable of wireless communication.

  Considering the heat generated by the elements on the wireless communication board 11, it is desirable to arrange the wireless communication board as far as possible from the camera. It may be significantly reduced.

  In the present invention, when viewed from the front of the camera, the wireless communication board (11) is disposed on the inner side of the end of the strobe light emitting unit (5) on the side farther from the optical axis. By disposing the wireless communication device at such a distance, the user of the camera does not feel the heat of an element (not shown) on the wireless communication board (11) and does not interfere with the wireless communication. A substrate can be placed.

DESCRIPTION OF SYMBOLS 1 Front cover 2 Rear cover 3 Liquid crystal display unit 4 Main chassis 5 Strobe light emitting unit 6 Wireless communication board mounting screw 11 Wireless communication board 12 Wireless connection flexible board 14 Main board 15 Plate 21 Lens barrel 22 Light emitting capacitor 23 Lens drive motor 25 Flexible substrate 30 for connecting the lens barrel driving motor Camera

Claims (4)

  A strobe light emission capacitor (22) and a lens barrel drive motor (23) having different diameters are arranged in parallel in the longitudinal direction of the camera in the vertical direction, and the strobe light emission capacitor (22) or mirror on the small diameter side is arranged vertically. The wireless communication board (11) is disposed at a position adjacent to the side surface of the tube driving motor (23), and the wireless connection flexible board (12), the strobe light emitting capacitor (22), and the lens barrel driving motor ( 23) and the substrate (13) for connecting the optical axis to the imaging optical axis so that they do not overlap on the plane in the perpendicular direction, the chassis (4) and the bezel of the liquid crystal display unit (3) or the chassis (4) and the metal A camera having a layout structure of a wireless communication board (11) and a flexible board (12) for wireless connection, which is arranged between an exterior (1 or 2).   The wireless communication board (11) is fixed and electrically connected to the chassis (4) with one screw (6), and the chassis (4) extends from the fixing portion to extend the wireless communication board (11). The camera according to claim 1, further comprising a tongue piece (4b) in contact with a ground pattern arranged along the line.   2. The wireless communication board (11) as viewed from the front of the camera, wherein the wireless communication board (11) is disposed on an inner side of an end of the strobe light emitting unit (5) farther from the optical axis of the light emitting unit. Camera. A strobe light emission capacitor (22) and a lens barrel drive motor (23) having different diameters are arranged in parallel in the longitudinal direction of the camera in the vertical direction, and the strobe light emission capacitor (22) or mirror on the small diameter side is arranged vertically. The wireless communication board (11) is disposed at a position adjacent to the side surface of the tube driving motor (23), and the wireless connection flexible board (12), the strobe light emitting capacitor (22), and the lens barrel driving motor ( 23) and the substrate (13) for connecting the optical axis to the imaging optical axis so that they do not overlap on the plane in the perpendicular direction, the chassis (4) and the bezel of the liquid crystal display unit (3) or the chassis (4) and the mold A layout structure of a wireless communication substrate (11) and a wireless connection flexible substrate (12), which is disposed between a metal-containing plate and attached to the outside of the exterior (1 or 2) Mera.