JPH05137036A - Video camera - Google Patents

Abstract

PURPOSE:To miniaturize a video camera by arranging plural substrates with the high total space efficiency for package of these substrates. CONSTITUTION:The substrates 21 are connected to each other with a flexible substrate 22 and then folded with the bent substrate 22. Under such conditions, the substrates 21 are supported by an inner case 20. Then a support screw 26 is put into a space produced by the bent substrate 22.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a compact video camera.

[0002]

Video cameras can be classified as broadcast, consumer, and industrial. In the fields of consumer use and industrial use, it is desired to reduce the size of the video camera as much as possible in order to expand the range of application by downsizing the video camera and the size of the device used. In a small video camera, a solid-state image pickup device and a plurality of substrates forming the drive circuit are housed in a case body with a high packing density.

Conventionally, in such a board mounting, a plurality of child boards are connected to a parent board through a connector, and the child boards are arranged side by side as close to each other as possible to increase the mounting density. ..

[0004]

However, according to the above-mentioned conventional structure, it is necessary to arrange the daughter substrates with the tallest substrate as a reference and with a slight space. In addition, since a large number of connectors are arranged on the parent board, the main function of the parent board itself is merely the relay of each child board. Therefore, the space efficiency of the entire board mounting is poor, which hinders the miniaturization of the video camera.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a video camera which has a good space efficiency of the whole board mounting and which is used for downsizing of the apparatus.

[0006]

A video camera according to the present invention for attaining the above-mentioned object, wherein a plurality of substrates are connected by a flexible substrate, the flexible substrate is bent, and the plurality of substrates are folded. In this state, the space is supported by the substrate supporting member, and the space formed by bending the flexible substrate is used as an insertion space for screws for supporting the plurality of substrates on the substrate supporting member.

[0007]

[Function] Since the plurality of substrates connected by the flexible substrate are folded and arranged, the respective substrates can be brought close to each other to the maximum extent,
Further, since the connection between the respective boards is performed by the flexible board which does not take up a space and the space formed by bending the flexible board is used as the insertion space for the mounting screw, the space efficiency of the whole board mounting is improved.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 show one embodiment of the present invention. 3 is an exploded perspective view of the video camera, FIG. 4 is a perspective view of the video camera, and FIG. 5 is a vertical sectional view of the video camera.
FIG. 6 shows a cross-sectional view of each video camera.

3 to 6, a video camera includes a case body A, a front block body B and a substrate block body C.
And the rear block body D are assembled.

The case body A is made of a material having good conductivity and good heat conductivity, and has a slender tubular shape whose cross-sectional outer shape is an octagon. Although this octagon is not a regular octagon, it is point-symmetric with respect to the optical axis center. Specifically, it is based on a regular quadrangle, with 45 on the four corners of its four faces 1.
It is configured by forming a notched inclined surface 2 at an angle of inclination. The four surfaces 1 are formed with a plurality of grooves 3 in the longitudinal direction so that the total surface area is large and the four surfaces 1
Grooves 4 for positioning are formed in each of them. An adjustment hole 5 is formed in one of the four surfaces 1. Further, each of the four inclined surfaces 2 has a screw insertion hole 6 formed at the front end thereof, and the screw insertion hole 6 is also formed at the opposite two surfaces of the rear end thereof.

The front block body B is inserted into the front side of the case body A, and the front cylinder body 7 substantially covers the outside. The front cylinder 7 includes a front portion 8 and a mounting portion 9.
And the cylindrical portion 10 are integrally provided, and an optical path space 11 for entering light is formed in the whole of them.

The front portion 8 is arranged on the front surface of the case body A, and the lens mounting reference surface 8a is provided on the front surface of the front portion 8.
Is configured. The mounting portion 9 has an octagonal shape corresponding to the inner surface dimension of the case body A and is inserted into the case body A. Then, screw holes 9a are formed in the four inclined surfaces, and the screws 12 inserted into the screw insertion holes 6 of the case body A are screwed into the screw holes 9a so that the front cylinder 7 is attached to the case body A. It has been concluded.

The cylindrical portion 10 is formed with four notch grooves 10a in the optical axis direction from the rear end toward the front. An image frame plate 13, an optical filter 14, a buffer member 15, and a solid-state image sensor 16 are sequentially inserted into the cylindrical portion 10 from the front. Further, a threaded portion 10b is formed on the outer periphery of the tubular portion 10, and the adjustment ring member 1 described below is attached to the threaded portion 10b.
8 is screwed in. A positioning protrusion 10c is provided at the rear end of the tubular portion 10.

The image frame plate 13 has a substantially disc shape having the same size as the inner diameter of the cylindrical portion 10, and has a rectangular opening 13a. The aspect ratio of the opening 13a is set to be the same as that of the imaging surface 16a of the solid-state imaging device 16 described below.
Protrusions 13b are integrally provided on the outer periphery of the image frame plate 13 and at four corners of the opening 13a. The picture frame plate 13 is positioned so that the four protrusions 13 b project into the respective cutout grooves 10 a of the cylindrical portion 10.

The optical filter 14 has a rectangular shape and is constructed by laminating a low pass filter, an infrared cut filter and the like. The optical filter 14 is positioned so that its four corners project into the respective cutout grooves 10a of the cylindrical portion 10.

The packing member 15 is made of an elastic material,
It has a substantially ring shape. The packing member 15 has its front surface pressed against the outer peripheral edge of the optical filter 14 and its rear surface pressed against the outer peripheral edge of the solid-state image pickup element 16 to protect the image pickup surface 16a from dust. Also, the packing member 15
Absorbs the vibration applied to the solid-state image sensor 16.

The solid-state image pickup device 16 has an image pickup surface 16a at the center, and its rear surface is positioned and fixed to the back plate 17.

The back plate 17 has a substantially disc shape having a size slightly larger than the inner diameter of the cylindrical portion 10, and the front surface thereof has a guide ring portion 17 having the same diameter as the inner diameter of the cylindrical portion 10.
a is provided. And this guide ring portion 17
A part of a is inserted into the cylindrical portion 10. Further, a positioning groove 17b is formed in the upper portion of the back plate 17, and the positioning protrusion 10c of the front cylindrical body 7 is arranged in the positioning groove 17b so that the back plate 17 is restricted in its rotational position.

The adjusting ring member 18 has a threaded portion 1 on its inner circumference.
8a is formed, and the screw member 18a is screwed into the screw portion 10b of the tubular portion 10. A pressing portion 18b extending in the central direction is provided at the rear end of the adjusting ring member 18, and the pressing portion 18b is provided on the back plate 17a.
Pressing on the rear surface. That is, the adjusting ring member 18 presses the solid-state imaging device 16 against the cushioning member 15 via the back plate 17.

FIG. 1 is a perspective view of the substrate block body, and FIG. 2 is an exploded perspective view of the substrate block body. As shown in detail in FIGS. 1 and 2, the substrate block body C includes an inner case 20 and three substrates 21 and the like housed in the inner case 20. Two flexible substrates 2 are provided between three substrates 21 arranged in a straight line.
The three substrates 21 which are respectively connected by 2 and are thus integrated are arranged in a zigzag manner. Three
Electronic components 23 are mounted on both surfaces of the one board 21, and a drive circuit for a video signal is configured by the three boards 21. And the adjacent substrate 21
A plate-shaped silicon rubber 34 is interposed between the silicon rubber 34 and the upper surface of the electronic component 23 is in contact with the silicon rubber 34. An adhesive sheet 35 is provided on one side of the silicone rubber 34.
Is provided, and the electronic component 23 of the substrate 21 on one side is adhered to the adhesive sheet 35.

The inner case 20, which is a substrate supporting member, is made of a material having good conductivity, springiness, and heat conductivity, and has an upper case member 20a and a lower case member 2.
0b and. The upper case member 20a has a substantially U-shape, and the lower case 20b has a flat plate shape. The upper case member 20a and the lower case member 20b cover three substrates 21 substantially entirely. A board supporting slit 24 is formed on the upper surface of the upper case member 20a and the lower surface of the lower case member 20b.
Are formed, and the corners 21a of each substrate 21 are inserted into the respective substrate supporting slits 24. Screw insertion holes 25 are formed in the upper surface of the upper case member 20a and the lower surface of the lower case member 20b, and the screws 26 inserted in the respective screw insertion holes 24 are screwed into the screw holes 33 of the rear panel 29 described below. .. The tip end side of each screw 26 is inserted into the space formed by the bent inner flexible substrate 22, and the position of the substrate 21 is also determined by each screw 26. That is, the inner case 20 accommodates the three substrates 21 with the substrate supporting slit 24 and the screw 26 held at a constant interval.

Further, the upper case member 20a and the lower case member 20b have a tongue-shaped component pressure contact piece 27 protruding inward.
Are provided at several places, and the component pressure contact pieces 27 are in pressure contact with the electronic component 23, which generates a large amount of heat, by its leaf spring force.
On the contrary, the upper case member 20a and the lower case member 20b
The tongue-shaped case pressure contact pieces 28 protruding outward are provided at several places on all four surfaces of the case pressure contact pieces 2
8 are pressed against the four inner surfaces of the case body A by their leaf spring force. Therefore, the substrate block body C is housed in the case body A with a small gap and receiving the leaf spring force of the case pressure contact piece 28.

3 to 6, the rear block body D has a rear panel 29, and a screw hole 30 is formed in the rear panel 29. The screw 31 inserted into the screw insertion hole 6 of the case body A is screwed into the screw hole 30 so that the rear block body D is attached to the rear end side of the case body A. The rear panel 29 is extended inside the case main body A, and a screw hole 32 is provided at the extended end. The screw 26 inserted into the screw insertion hole 25 of the inner case 20 as described above is screwed into the screw hole 32, whereby the rear block body D and the substrate block body C are connected.

A connector 33 is fixed to the rear panel 29, and a video signal of the drive circuit is output from this connector 33.

The front block B is assembled by fixing the image frame plate 13, the optical filter 14, the buffer member 15, and the back plate 17 to the optical path space 11 in the cylindrical portion 10 from the rear of the front cylindrical body 7. The image pickup device 16 may be inserted in this order, and then the adjustment ring member 18 may be screwed into the tubular portion 10.

Assembling of the substrate block body C is as follows.
Silicon rubber 34 is adhered to the upper surface of the electronic component 23 by means of an adhesive sheet 35 on one surface of the two substrates 21 facing the other substrate 21. Next, when the flexible substrate 22 is bent and the three substrates 21 are folded, the electronic components 23 mounted on the respective substrates 21 become silicon rubber 3.
Contact via 4. The upper case member 20a and the lower case member 20b are covered on the three substrates 21 thus folded, and the corners 21a of the respective substrates 21 are inserted into the respective substrate supporting slits 24 of the upper and lower case members 20a and 20b.
Finally, the pair of screw holes 32 of the rear panel 29 assembled as the rear block body D is formed in the upper and lower case members 2
0a. The screw 26 may be inserted into each of the screw insertion holes 25 of 20b. The tip of each screw 26 is inserted into a space formed by bending the flexible substrate 22 to assist in supporting the substrate 21 on the inner case 20.

Substrate block body C assembled in this way
Is a plurality of substrates 21 connected by a flexible substrate 22.
Since the boards 21 are folded and arranged, the boards 21 can be brought close to each other to the maximum extent, and the flexible boards 22 which do not take up a space are used to connect the boards 21 to each other. Saves space,
Further, since the space formed by bending the flexible substrate 22 is used as the space for inserting the screw 26, there is no wasted space, and the space efficiency of the entire substrate mounting is high and the video camera is miniaturized.

Further, in this embodiment, as shown in FIGS. 5 and 6, since the flexible substrate 22 is arranged so as to contact the side surface of the electronic component 23a having the maximum weight, when the electronic component 23a is impacted. Since this shock is buffered by the flexible substrate 22, there is an advantage that it is strong against the shock. Further, since the flexible substrate 22 to be bent has an inner peripheral side shorter than an outer peripheral side, it has an advantage of being easily bent.

[0029]

As described above, according to the present invention, a plurality of substrates are connected by a flexible substrate, the flexible substrate is bent and the plurality of substrates are folded and supported by a substrate supporting member, Since the space formed by bending the board is used as a screw insertion space, the space efficiency of the entire board mounting is high and the video camera can be miniaturized.

[Brief description of drawings]

FIG. 1 is a perspective view of a substrate block body (embodiment).

FIG. 2 is an exploded perspective view of a substrate block body (embodiment).

FIG. 3 is an exploded perspective view of a video camera (example).

FIG. 4 is a perspective view of a video camera (example).

FIG. 5 is a vertical sectional view of a video camera (example).

FIG. 6 is a cross-sectional view of a video camera (example).

[Explanation of symbols]

20 ... inner case (substrate support member), 21 ... substrate,
22 ... Flexible substrate, 26 ... Screw.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masanobu Morioka 6-735 Kitashinagawa, Shinagawa-ku, Tokyo Sony Corporation

Claims (1)

[Claims] 1. A flexible substrate is used to connect a plurality of substrates, the flexible substrate is bent, and the plurality of substrates are supported by a substrate supporting member in a folded state. The flexible substrate is bent. A video camera, wherein the space is a space for inserting a screw for supporting the plurality of substrates on the substrate supporting member.