JP2000002917A - Electric mounting structure for camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure capable of connecting an FPC(flexible printed circuit board(second substrate)) with a substrate without using a connector. SOLUTION: This structure is provided with a first substrate 4 provided with a first electric part 32 and a first terminal 42 electrically connected with the first electric part 32, second electric parts 21 and 22 and a second substrate 23 provided with second terminals 24(24a-24f) electrically connected with the second electric parts 21 and 22 and connected with the second electric parts 21 and 22. Then, the first terminal 42 is provided at the peripheral end part 41 of the first substrate 4, and the second terminal 24 is provided at one end of the second substrate 23 of the second terminal 24, and the second terminal 24 is directly connected to the first terminal 42.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric mounting structure of a camera.

[0002]

2. Description of the Related Art In recent years, a film provided with a magnetic recording layer on which information can be recorded has been known. Cameras using this film to write various information such as photographing conditions on the magnetic recording layer on the film and reading information written on the magnetic recording layer are also known.

In this type of camera, a magnetic head is provided on a pressure plate of the camera, and desired information can be written / read to / from the magnetic recording layer during film feeding (winding / rewinding). it can. On the other hand, two detection holes (perforations) are formed on the film according to a predetermined rule for each photographing frame, and the camera uses an optical detection sensor during film feeding to perform the detection. It is configured to detect the position of the photographing frame provided on the film by detecting the holes.
The location of the detection sensor is generally on the pressure plate of the camera, similarly to the magnetic head.

Further, the above-mentioned recent cameras are provided with an electric mounting circuit including a microcomputer for controlling a series of operations of a camera internal mechanism including a magnetic head and a detection sensor.
This electric mounting circuit is usually provided on the rear surface of the camera behind the pressure plate due to the arrangement of the camera. When the optical sensor and the magnetic head as described above are arranged on the pressure plate, it is necessary to electrically connect the optical sensor and the magnetic head to the electric mounting circuit.

FIG. 5 is a perspective view showing a conventional electrical connection between electrical components. The camera body 100 includes a pressure plate 1
02 is fixed by a screw 110. This pressure plate 10
2 is a sensor 121 for detecting perforation on the film, and information is magnetically recorded / recorded on the film.
A reproducing magnetic head 22 is provided. Pressure plate 10
The microcomputer 132 is provided on the electric circuit board 104 opposed to the electronic circuit board 2. In a conventional device, a sensor 21 and a magnetic head 22 are connected to a flexible printed circuit board (F).
PC) 123, and connects the FPC to the electric circuit board 104.
The sensor 21, the magnetic head 22, and the microcomputer 132 are electrically connected by a method of coupling to the connector 200 arranged above.

[0006]

However, in the conventional coupling method, a connector is required, so that the number of camera parts increases, and a space for arranging the connector needs to be secured on the electric circuit board. There is
There is a problem. SUMMARY OF THE INVENTION An object of the present invention is to provide an electric mounting structure capable of electrically connecting electric components without using a connector and without having to secure a wide space for connection between the electric components.

[0007]

In order to solve the above problems,
In the electrical mounting structure of the camera of the present invention, the first electrical component 32
A first substrate 4 having a first terminal 42 electrically connected to the first electric component, second electric components 21 and 22, and a second terminal 24 electrically connected to the second electric component. And a second substrate 23 connected to the second electric component. The first terminal is provided on a peripheral end portion 41 of the first substrate, and the second terminal is provided at one end of the second substrate. And the second terminal is connected to the first terminal.
It was structured to be directly connected to the terminal.

[0008]

According to the present invention, an FPC connected to an electric component
Can be electrically connected to a board on which components such as a microcomputer are mounted without using components such as connectors and without requiring a large space, thus reducing the number of components and miniaturizing the camera. Can be achieved.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a perspective view of an embodiment (camera) to which the present invention is applied, and FIG. 2 is a cross-sectional view of the embodiment (camera) to which the present invention is applied. Also, FIG.
FIG. 3 is a block diagram showing an electrical connection relationship between a pressure plate 2 and a main mounting board (first board) 4 described later.

In the camera body 1, the pressure plate 2 includes screws 10a to
10d. By this fastening, a film passage path (gap) A (FIG. 2) through which the film 3 loaded in the camera body 1 can pass is formed between the camera body 1 and the pressure plate 2.

The pressure plate 2 is provided with a sensor 21 and a magnetic head 22, which will be described later. Sensors (second electrical components, controlled components, detecting means) 21 are provided with holes (detection holes, perforations) 31 a to 3 provided on film 3.
This is for optically detecting 1d. Based on the detection result by the sensor 21, a film feeding control (control such as winding the film or rewinding the film into the cartridge) by a film feeding mechanism (not shown) is performed.

Although a large number of holes (perforations) are provided on the film 3, FIG.
Only 1a to 31d are described. In the present embodiment, a sensor 21 that optically detects the holes 31a to 31d is used.
The detection method is not particularly limited as long as the holes 31a to 31d can be detected.

A magnetic head (second electric component, controlled component,
The information processing means 22 performs writing or reading on a magnetic layer (information section) (not shown) provided on the film 3. On the pressure plate 2, a flexible printed board (second board) that is electrically connected to both the sensor 21 and the magnetic head 22 by mechanically connecting them.
23 (hereinafter, referred to as FPC 23).

The sensor 21 and the magnetic head 22 are connected to each other by soldering or thermocompression bonding using an anisotropic conductive material.
It is connected to PC23. Thereby, the sensor 21
In addition, it becomes possible to exchange electric signals between the magnetic head 22 and the FPC 23. A conductive pattern (not shown) for transmitting an electric signal is formed on the FPC 23. Therefore, input / output signals to the sensor 21 and the magnetic head 22 pass through the above-described conductive pattern, and are
(Second terminals) 24a to 24f provided on the end portion (one end of the second substrate) 23a.

The FPC 23 is disposed on the surface of the pressure plate 2 opposite to the camera body 1 (the surface opposite to the surface of the pressure plate facing the film passage), and at the lower end 23a, It is bent approximately 90 degrees in the direction opposite to the camera body 1 (see FIGS. 1 and 2). Behind the pressure plate 2 (the surface of the pressure plate opposite to the surface facing the film passage path A), a main mounting substrate (a first substrate, an electric circuit substrate, an electric mounting substrate) facing the pressure plate 2 4 are provided. The main mounting board 4 is disposed so as to face the pressure plate 2 almost in parallel.

A microcomputer (first electric component, control component) 32 for controlling a series of operations of the camera, and a plurality of other electric circuit components (electric components) not shown are mounted on the main mounting board 4. I have. Terminals (first terminals) 42 a to 42 are provided at the peripheral end (peripheral end of the first substrate) 41 of the main mounting substrate 4 (below the substrate 4 in FIGS. 1, 2, and 4).
f is provided.

The terminals 42a to 42f correspond to the terminals 24a to 24f of the FCP 23, respectively. And terminal 4
2a to 42f have a configuration in which an electric signal is finally transmitted / received to / from the microcomputer 32 via a conductive pattern (not shown) or an electric circuit (not shown) provided on the main mounting board 4. As a result, input / output signals of the sensor 21 and the magnetic head 22 connected to the FPC 23 are transmitted to the terminals 24a to 24a.
4f and the terminals 42a to 42f,
Will be reached.

Here, terminals 24a to 24f and terminal 42
The connection modes (connection methods) a to 42f will be described.

As described above, one end 23a of the FPC 23 is
The FPC 23 is provided at a position bent about 90 degrees, that is, substantially perpendicular to the pressure plate 2 and the main mounting board 4. At this time, the terminals 24a to 24f and the terminal 42
In a to 42f, the corresponding terminals are opposed to each other in such a manner that they face substantially vertically. In the present embodiment, the opposed terminals 24a to 24f and terminals 42a to 42f
Are connected by soldering 50 (FIG. 2).

Here, the gap B (FIG. 2) between the end 41 of the main mounting board 4 and the camera body 1 is defined by the end 2 of the FPC 23.
It is desirable that the gap 3a passes.

In the first embodiment, the optical sensor 21 and the magnetic head 22 are used as the electrical components connected to the FPC 23. However, the same configuration can be applied to other electrical components. For example, when an LED or LCD for imprinting on a film is arranged on a pressure plate, the LED or LCD may be connected to the FPC 23 and then connected to the main mounting board 4 in a similar manner.

In the first embodiment, one end 23a of the FPC 23 is mounted so as to be substantially vertical. However, it is not particularly necessary to stick vertically as long as it can be connected to the terminals 42a to 42f. For example, one end 23a of the FPC 23
However, it may have a shape as shown in FIGS. 4A and 4B (the second embodiment and the third embodiment).

[0023]

According to the present invention, an FPC connected to an electric component such as an optical sensor or a magnetic head and a substrate on which an electric component such as a microcomputer is mounted can be formed in a wide area without using a connecting component such as a connector. Since electrical connection can be made without requiring a space, the number of parts can be reduced, and the size of the camera can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment (camera) to which the present invention is applied.

FIG. 2 is a sectional view of a first embodiment (camera) to which the present invention is applied.

FIG. 3 is a block diagram showing an electrical connection relationship between a pressure plate 2 and a main mounting board 4;

FIG. 4A is a second embodiment (camera), FIG.
(B) is sectional drawing of 3rd Embodiment (camera).

FIG. 5 is a perspective view showing a conventional connection configuration between substrates.

[Explanation of Signs of Main Parts]

 DESCRIPTION OF SYMBOLS 1 Camera main body 2 Pressure plate 4 Main mounting board (1st board) 21 Optical sensor (2nd electrical component) 22 Magnetic head (2nd electrical component) 23 Flexible printed board (2nd board) 24 terminal (2nd terminal) 32 microcomputer (First electrical component) 42 Terminal (First terminal) 50 Solder

Claims (3)

[Claims] A first substrate having a first electrical component, a first terminal electrically connected to the first electrical component, and a second electrical component electrically connected to the second electrical component. A second substrate connected to the second electrical component, the first terminal being provided at a peripheral end of the first substrate, and the second terminal being provided on a second substrate of the second substrate. An electrical mounting structure for a camera, provided at one end, wherein the second terminal is directly connected to the first terminal. 2. The first terminal is connected to the first terminal by soldering.
The electrical mounting structure of a camera according to claim 1, wherein the camera is directly connected to a terminal. 3. A pressure plate facing a passage of the film, wherein the first substrate is disposed substantially parallel to a surface of the pressure plate opposite to a surface of the plate facing the passage of the film, and The electrical mounting structure of a camera according to claim 1, wherein a component is provided on the pressure plate.