JP2004117855A - Camera printed circuit board mounting structure - Google Patents

Abstract

[Purpose] To provide a horizontal printed circuit board mounting of a camera with good workability and light weight. [Constitution] Rigid printed circuit boards 1 and 2 having almost the same area as the exterior member of the camera body. The rigid printed circuit board 1 and the rigid printed circuit board 2 are arranged on the rear surface of the body, are arranged in parallel with the rear surface of the camera body, and are electrically connected via a connector. The camera back cover 11 is provided with a number of buttons and dials for controlling the functions of the camera. These electric signals are electrically transmitted through the connector section 7 of the flexible printed circuit board 5 and the connector arranged on the rigid printed circuit board 1. Connected to.
[Selection diagram] Fig. 1

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a printed circuit board mounting structure of a camera, and more particularly to a printed circuit board mounting structure of a camera that can be stored in a small space in a camera body.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in implementing wiring of an electric circuit of a camera, a flexible printed circuit board having flexibility has been often used in order to effectively use a narrow space in the camera.
[0003]
For example, as a mounting structure of a flexible printed circuit board for a camera, a flexible printed circuit board to be mounted is divided into a plurality of divided bodies for each mounting surface portion such as an upper surface, a lower surface, and a side surface of the camera body, and a common structure in which each divided body is not mounted. Each of them is bent toward the surface of the camera body, and is connected in a series on the entire surface, thereby improving workability when mounting the substrate and reducing costs (for example, See Patent Document 1.).
[0004]
However, in recent years, the miniaturization of cameras has been rapidly progressing, and with the advancement of computerization, cameras have been required to have more functions. As a result, the mounting scale of the circuit has been increased, and switches and sensors have been interposed between narrow and small parts in the camera. .
[0005]
For this reason, a flexible printed circuit board is used for wiring between electrical components, and the electrical components are installed in a large number of places, and the arrangement of the electrical components is decentralized and complicated. Due to such a configuration, a printed circuit board that is simple and has a large area without using a flexible printed circuit board has been required for wiring of electric components.
[0006]
As an example of such a printed circuit board mounting structure of a camera, a printed circuit board is arranged on the back of a camera body, a plurality of connectors for mounting electrical components of the camera, and for electrically connecting to another printed circuit board on the surface. And a plurality of printed circuit boards provided on a surface other than the rear surface of the camera body and electrically connected to the plurality of connectors of the printed circuit board. A proposal has been made for the purpose of providing a printed circuit board mounting structure of a camera with good workability and a large mounting area (for example, see Patent Document 2).
[0007]
[Patent Document 1]
JP-A-62-141524
[Patent Document 2]
JP 2001-308486 A
[Problems to be solved by the invention]
However, in the printed circuit board structure of the camera disclosed in Japanese Patent Application Laid-Open No. 2001-308486, a large area is formed for wiring between electric components by using a plurality of flexible printed boards. The use increases the number of assembling steps, and the possibility that noise occurs between the exchanges of electrons because the electronic components are distributed by the plurality of flexible printed circuit boards.
[0010]
Further, in the structure of the printed circuit board disclosed in Japanese Patent Application Laid-Open No. Sho 62-141524, since the number of divided boards is plural, not only is the mounting to the camera body troublesome, but also because the gap in the camera is sewn. Since there are many bent parts, there is a problem that the mounting area is small.
[0011]
The present invention has been made in view of these precedents, and it is an object of the present invention to provide a printed circuit board mounting horizontal structure of a camera having good workability, leading to a reduction in weight, and having a large area.
[0012]
[Means for Solving the Problems]
In order to achieve the above object, the printed circuit board mounting structure of the camera according to the present invention does not use a plurality of new flexible printed circuit boards on the upper and lower surfaces, left and right surfaces, but as much as an exterior member forming the rear surface of the camera body. Printed circuit boards are arranged in parallel on the back surface of the camera body, and are electrically connected by fitting connectors mounted on each other. A printed circuit board, which is arranged on the back of the camera body, on which electric components of the camera are mounted, and on which at least one or more connectors are mounted for making electrical connection with each other. And a printed circuit board having a connector matching the connector of the printed circuit board are arranged in parallel on the back of the camera body. Comprising a printed circuit board electrically connected by.
[0013]
The electrical connection of the printed circuit boards arranged in parallel on the back of the camera body is made by connectors mounted on both surfaces of the printed circuit board, and the flexible boards arranged in parallel on the upper surface of the camera body. The printed circuit board and the printed circuit board arranged in parallel on the back surface are electrically connected by a connector. Then, a printed circuit board on which an image pickup device was mounted was arranged on a shutter side of a printed circuit board arranged in parallel on the back of the camera body.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a printed board mounting structure including a hard printed board 1 and a hard printed board 2 as viewed from the rear side of a camera body. FIG. 2 is a cross-sectional view showing a printed circuit board mounting structure including a hard printed circuit board 1, a hard printed circuit board 2, and a connector arranged on the back surface of the camera body when viewed from the side. FIG. 3 is a cross-sectional view illustrating a printed circuit board mounting structure of the flexible printed circuit board 13, the hard printed circuit board 1, and the connector arranged inside the back cover 11 of the camera body.
[0015]
The hard printed boards 1 and 2 are arranged on the back of the camera body, and can have an area approximately equal to that of an exterior member of the camera body (not shown). The hard printed board 1 and the hard printed board 2 are arranged so as to be parallel to the rear surface of the camera body, and are electrically connected via connectors 3 and 4.
[0016]
Reference numeral 11 shown in FIGS. 1 and 3 denotes a back cover of the camera, on which a number of button dials for controlling the functions of the camera are mounted. These electric signals are electrically connected to the connector section 14 of the flexible printed circuit board 13 and the connector 15 arranged on the hard printed circuit board 1 and then coupled to the camera body by screws (not shown).
[0017]
That is, the rigid printed circuit board 1 and the rigid printed circuit board 2 have a large area in a narrow space formed on the back of the camera, so that many switches and sensors are not dispersed and wiring between electronic components is required. There is no need to make it longer.
[0018]
In FIG. 1, a flexible printed circuit board 5 is arranged along a pentaprism portion, not shown on the printed circuit board and the upper surface of the camera body, and various switches such as shutters not shown on the flexible printed circuit board 5 are arranged. Are placed so as to be electrically connected.
[0019]
The rigid printed circuit board 1 and the rigid printed circuit board 2 are fitted with the connectors 3 and 4 as described above, and are disposed together with the imaging device 8 on the back of the camera body. Into the connector placed on the connector.
[0020]
The electrical connection can be made by bending the flexible printed circuit board 5 to approximately 90 degrees and fitting the connectors 6 and 7 into each other.
[0021]
In other words, since the wiring of the electric circuit is gathered in a close place, the electrical connection is facilitated and the wiring is easily designed.
[0022]
In FIG. 2, an image sensor 8 is provided on the shutter side of the hard printed board 1 and the hard printed board 2, and the hard printed board 1 and the image sensor 8 are connected to the connector 10 of the flexible printed board 12 and the hard printed board 2. Electrical connection can be made via the connector 9.
[0023]
Since the imaging element 8 is located near the hard printed circuit board 2, image information can be suppressed and noise can be accurately obtained.
[0024]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a printed circuit board mounting structure of a camera with good workability. In other words, a plurality of connectors are placed between the hard printed boards 1 and 2 so that noise between one electronic component is less likely to occur. By gathering the wirings near each other, the electrical connection is facilitated and the wiring is easily designed. Also, the number of parts is reduced without using a flexible printed circuit board more than necessary, which leads to weight reduction and cost reduction. Although two rigid printed boards have been described as being arranged in parallel, it goes without saying that, for example, one of the rigid printed boards may be replaced with a flexible printed board and installed in a narrower space. Also, here, the description has been given by taking a digital camera as an example, but the present invention may be applied to a single-lens reflex camera, a compact camera, and the like.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a printed circuit board mounting structure of a camera in a state where a camera body is viewed from a rear surface.
FIG. 2 is a cross-sectional view showing a printed circuit board mounting structure of the camera when the camera body is viewed from a side.
FIG. 3 is a sectional view showing a back cover and a printed circuit board mounting structure of a camera body.
[Explanation of symbols]
1, 2, ... hard printed circuit board 3, 4, 6, 7, 9, 10, 14, 15 ... connector 5, 12, 13 ... flexible printed circuit board 8 ... imaging element 11 ... back cover

Claims (2)

A printed circuit board on which electrical components of the camera are mounted and at least one or more connectors are mounted for electrical connection with another printed circuit board, and a printed circuit board having a connector matching the connector of the printed circuit board. A printed circuit board mounting structure for a camera, wherein the printed circuit board mounting structure is arranged in parallel on the back of the body and electrically connected by the connector. 2. A printed circuit board mounting structure for a camera according to claim 1, wherein a printed circuit board on which an image sensor is mounted is arranged on a shutter side of a printed circuit board arranged in parallel on the back of the camera body.

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