JPH02201338A - Board arrangement constitution in camera - Google Patents

Abstract

PURPOSE:To improve the component package efficiency in the space in the curved surface outer package of the camera by arranging a hard printed board slantingly inside the top surface of the outer package. CONSTITUTION:Inside the top surface of the camera outer package which is composed of a curved or slanting surface, one end of the hard printed board 6 is entered into the shoulder part at the end on the outer package top surface side and the other end is directed to the inside center of the top surface of the outer package and arranged slantingly along the inside of the outer package top surface. Then the connecting part edge of a flexible printed board 9 which is connected to a connection part formed on the slanting end surface of the hard printed board 6 is provided slantingly at nearly the same angle as the tilt angle of the hard printed board 6 in the longitudinal direction of the main body part of the flexible printed board 9. Consequently, the hard printed board 6 is packaged in the outer package whose top surface is curved spatially effectively to improve the package efficiency in the camera outer package.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a printed circuit board arrangement within a camera.

(Prior Art) Recently, due to design requirements, the appearance of cameras has become curved. The internal structure of a camera is centered around a camera dark box surrounded by horizontal and vertical surfaces, and various parts are arranged around it on a horizontal and vertical basis.If the exterior is curved, the exterior and internal structure of the camera There is a lot of unusable space between the two. That is, to give an example, the internal structure of the camera is as shown in FIG. 5, with a finder 3. The photometer, focus detection device 8, etc. are arranged, and the center of the top surface has a middle height shape. Therefore, if the camera exterior is a curved surface, the top surface of the exterior will be a curved surface with a large radius of curvature, as shown in FIG. It has a rounded shape at the shoulders. When placing a hard printed circuit board for controlling the camera between the top surface of the exterior and the internal structure of the camera, as shown in FIG. If you try to place it, the left end of the hard printed circuit board 6 will hit the rounded shoulder of the exterior work as shown in the figure, so you will have to reposition it so that it escapes the shoulder of the exterior work and rests on the middle and high part of the internal tank structure. As a matter of fact, the shaded area a in the figure is a dead space. In this way, if the printed hard board is placed only horizontally or vertically, the printed hard board will come into contact with the outside at the curved parts of the outside, creating an unusable space (shaded area), which will affect the camera outline. becomes larger.

One way to eliminate wasted space and increase mounting efficiency is to place a flexible printed circuit board along the exterior, or to divide a rigid printed circuit board into smaller pieces. This method is expensive, and furthermore, when a rigid printed circuit board is divided, it is necessary to connect each board, and in any case, there is a problem in that this method increases the cost.

(Problems to be Solved by the Invention) The present invention aims to improve mounting efficiency inside the camera exterior by spatially effectively mounting a rigid printed circuit board on an exterior whose top surface is curved. .

(Means for solving the problem) In the circuit board layout W configuration in the camera, a hard printed circuit board is placed inside the upper surface of the camera exterior whose upper surface is composed of a curved surface or an inclined surface, and one end of the hard printed circuit board is inserted into the shoulder at the side edge of the upper surface of the exterior. enter the
A connection portion of a flexible printed circuit board that is arranged obliquely along the inside of the upper surface of the exterior, with the other end facing toward the center of the inside of the upper surface of the exterior, and is connected to a connection portion formed on the inclined end surface of the rigid printed circuit board. The edge is inclined to the same extent as the inclination angle of the rigid printed circuit board with respect to the longitudinal direction of the main body of the flexible printed circuit board.

(Function) The present invention is advantageous in that when a hard printed circuit board is placed inside the top surface of a camera exterior whose top surface is a curved or sloped surface, it is not placed horizontally but at a slight inclination. It is now possible to insert one end of the board into the shoulder on the side edge of the top surface of the exterior, which would otherwise be a waste of space, thereby eliminating wasted space. By arranging it diagonally, the hard printed circuit board is placed at a high position in the center inside the top surface of the exterior, and the space between the center space inside the top surface of the exterior and the top surface of the camera dark box is widened, and the viewfinder 3. It becomes easier to arrange the photometry device, focus detection device 8, etc.

In addition, the connection end surface of the flexible printed circuit board that is connected to the sloped end of the rigid printed circuit board arranged at an angle is connected to the main body of the flexible printed circuit board.
By tilting the flexible printed circuit board at the same angle as the rigid printed circuit board, the direction of the flexible printed circuit board becomes vertical. It will be possible to connect it to other parts.

(Example) FIG. 1 shows an example of the present invention.
is the camera exterior, 2 is the lens barrel, 3 is the finder, 4 is the zoom motor, 5 is the flash lamp, 6 is the microcomputer 6a
The main rigid printed circuit board (hereinafter referred to as main circuit board 1 to board) on which is mounted is arranged according to the present invention, and is arranged diagonally along the left half in the diagram of the inside surface of the exterior work. are doing. 7 is an AP printed board, and 8 is an AF/AE light receiving element board whose upper edge 8a is cut diagonally along the main printed board. Finder 3. Zoom motor 4. Flash lamp 5. AF-A
The E light-receiving element substrate 8 and the like are arranged on the top of the camera, and the top surface of the internal structure of the camera is raised in the middle. The main printed circuit board 6 is arranged in an inclined position from the shoulder to the center of the upper surface of the exterior, making use of a low place on the left side of the upper surface of the internal structure of the camera. Reference numeral 9 indicates an AF printed circuit board 7 and an AF-AE light receiving element board 8. Connect the contact with the flexible printed circuit board,
An AF light emitting LED module 10 is attached to its tip. 11 is the main capacitor, 12 is the battery compartment, 1
7 is a cartridge chamber, and 23 is a booster board for the flash lamp 5, which is connected to 6 and 11 and 12 by lead wires (not shown), and is also connected to the kinocene tube of the flash lamp 5. 25 is a winding and rewinding gear train BOX.

Figures 2 and 3 are diagrams showing the mounting state of the board (hereinafter referred to as C8C flexible printed circuit board) 13 provided on the outer surface of the film cartridge for reading signal patterns for determining film sensitivity, number of shots that can be taken, and latitude. be. Figure 4 shows CAS flexible printed circuit board 1.
As shown in FIG. 4, which is a developed view of No. 3, the CAS flexible printed circuit board 13 has a connecting portion 13d with the main printed circuit board 6, and this connecting portion 13d is crimped to the lower surface of the main printed circuit board 6. However, the main printed circuit board 6
Since the connecting portion 13d is installed at an angle, the connecting portion 13d is provided so as to be inclined by an angle θ which is the angle of inclination of the substrate 6 with respect to the longitudinal direction (direction A) of the main body portion of the CAS flexible printed circuit board 13. In this way, by arranging the connecting portion 13d to face the direction B with an angle θ, and further bending the connecting portion 13d along the line X perpendicular to the direction B, and connecting it to the main printed circuit board 6, the CAS Since the main longitudinal direction (direction A) of the printed circuit board 13 is the vertical direction, the pressure contact part 1
When connecting other connecting parts such as 3b and 13C to other members,
There is no need for unreasonable bending such as twisting. Further, the CAS printed circuit board 13 is a CAS printed circuit board (not shown).
It has a pressure contact part 13a (main part) that is connected to the contact piece and connects with the shutter flexible printed circuit board 14 (FIG. 2) and the zoom encoder flexible printed circuit board (not shown), and also has a zoom switching signal contact part 13b and an unillustrated zoom encoder flexible printed circuit board. It has a mounting part 13c for a switch 15 that starts photometry and distance measurement operations or starts shutter operation in response to the operation of the illustrated main switch or release button. 16 is a backup capacitor for the microcomputer, which is soldered to the CAS printed circuit board 13. In this way, all connections (encoder, CAS, photometry, distance measurement switch, shutter release switch, zoom switch, etc.) are made to the main printed circuit board 6 using one flexible printed circuit board 13 as an intermediary, so that each The shape of the printed circuit board is reasonable, and overall circuit-related mounting efficiency is good.
The microcomputer 6a is mounted on the main printed circuit board 6, but the microcomputer is susceptible to noise, and if a strong electric part (boost board 23) or the like is placed nearby, it is likely to cause the microcomputer 6a to run out of control. The booster board 23 is placed at a location separate from the microcomputer 6a.

In FIG. 3, reference numeral 18 denotes a flexible printed circuit board that connects the main printed circuit board 6 and the AF circuit board 7, and a switch 5W19 for switching the control mode of the camera is disposed in between. 21 is a release button, and 22 is a zoom switching operation section.

(Effects of the Invention) According to the present invention, in a camera having a curved upper surface of the exterior, by arranging a hard printed circuit board obliquely inside the upper surface of the exterior, the upper surface of the internal structure of the camera and the upper surface of the exterior can be The semi-arculated space created between the camera and the lower part can now be used effectively, improving the mounting efficiency of components in the space inside the camera's curved exterior, making it possible to downsize the camera.

[Brief explanation of the drawing]

Fig. 1 is a front sectional view of one embodiment of the present invention, Fig. 2 is a front sectional view of the above embodiment at a position further forward from the above, Fig. 3 is a side sectional view of the above embodiment, and Fig. 4 is a CAS flexible FIG. 5, which is a developed view of the printed circuit board, is a front sectional view of a conventional example. DESCRIPTION OF SYMBOLS 1... Camera exterior, 2... Lens barrel, 3... Finder 4... Zoom motor, 5... Flash lamp, 6... Hard main printed circuit board, 6a... Microcomputer 6a, 7 ...AP printed circuit board, 8...AF
-AE light receiving element board, 8a... upper edge, 9... contact flexible printed circuit board, 10... AF light emitting LED
Module, 11... Main capacitor, 12...
Battery compartment, 17... Patrone compartment, 23... Boost board, 25... Winding and rewinding gear train BOX.

Claims (2)

[Claims] (1) Inside the upper surface of the camera exterior, which has a curved or sloped upper surface, insert a hard printed circuit board with one end inside the shoulder on one side of the upper surface of the exterior, and the other end toward the center inside the upper surface of the exterior. A circuit board arrangement configuration in a camera, characterized in that the circuit board is arranged obliquely along the inside of the upper surface of the exterior. (2) The edge of the connecting portion of the flexible printed circuit board that connects to the connecting portion formed on the inclined end surface of the rigid printed circuit board has the same angle of inclination as the rigid printed circuit board with respect to the longitudinal direction of the main body of the flexible printed circuit board. 2. The circuit board arrangement in a camera according to claim 1, wherein the circuit board is provided at an angle.