JPH0678191A - Electronic appatatus - Google Patents

Abstract

PURPOSE:To obtain an electronic apparatus eliminating the necessity of outer painting and capable of maintaining the conductivity of an outer case. CONSTITUTION:Upper and lower cases 30, 10 and a rear panel 50 are formed by so-called vinyl chloride clad steel sheets obtained by sticking sheets 32, 12, 52 made of vinyl chloride resin to steel sheets 31, 11, 51. Respective end surfaces 34, 14 of respective both side parts 33, 33 and 13, 13 of the upper and lower cases 30, 10 are mutually jointed through the both side parts 21, 21 of a steel sheet-made chassis 20 engaged in the lower case 10. Consequently outer painting is made unnecessary, and since the steel sheets 31, 11 of the upper and lower cases 30, 10 come into contact with the chassis 20, the conductivity of the outer case 20 can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic device such as a single plate type video camera which does not require external coating of an outer casing.

[0002]

2. Description of the Related Art For example, a CCD single plate type video camera is known. The outer casing of this video camera will be specifically described with reference to FIG. 8. Reference numeral 100 in FIG. 8 indicates the outer casing of the video camera. The outer casing 100 includes a lower case 101 made of sheet metal and having a substantially inverted Ω-shaped cross section, and the lower case 1
The upper case 102 is made of sheet metal and fixed to both side parts 101a and 101a of No. 01 by screws 103 and has a substantially V-shaped cross section.

[0003]

In the conventional outer casing 100 of a video camera, by coating the outer surfaces of the upper and lower cases 102 and 101, both side portions 102a of the upper case 102 and the lower end surfaces 102b of 102a, It is necessary to prevent the 102b from being exposed directly, and to energize it for the purpose of radiation countermeasures, interference countermeasures, etc. For these, masking is done near the screw stop (E part shown with diagonal lines in the figure). Since the upper and lower cases 102 and 101 are energized, it takes time and effort to manufacture the parts, which is a factor of high cost.

Therefore, the present invention provides an electronic device which does not require exterior coating and does not impair electrical conductivity.

[0005]

An outer casing of an electronic device is covered with an outer surface of a conductive member with a non-conductive member, and a lower case is formed in a generally square cross section. The lower case is fitted into the lower case. A chassis having a substantially square cross section formed of a conductive member having both side portions protruding further upward than the both side portions protruding upward of the lower case, and a cross section having a substantially non-conductive member covering an outer surface of the conductive member. The upper case is formed in the shape of a double letter, and the end faces of both side parts protruding downward are joined to the end faces of both side parts of the lower case.

[0006]

[Function] Since the outer casing of the electronic device is configured and the outer surface of the lower case is covered with the non-conductive member, the exterior coating is unnecessary,
The cost can be reduced accordingly. Further, since the conductive member portions of the upper and lower cases come into contact with the chassis made of the conductive member, the electrical conductivity of the outer casing is also good.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIGS. 2 and 3, reference numeral 1 is a video camera as an electronic device. The outer casing 2 of this video camera 1 is
The lower case 10, the chassis 20, the upper case 30, the front panel 40, and the rear panel 50 are formed into a rectangular box type. The optical lens 3 is screwed into a through-screw hole 41 in the center of the front panel 40, and a solid-state image sensor (CCD) 4 is attached to the inner surface of the front panel 40 facing the optical lens 3 to rotate an adjusting ring 5. Thus, the flange back is provided so as to be adjustable in the front-rear direction along the pair of guide lots 42, 42.

The lower case 10 is a steel plate (conductive member).
An outer surface 11a of 11 is formed by a so-called vinyl chloride steel plate in which a sheet (non-conductive member) 12 made of a vinyl chloride resin is attached to have a cross section of a generally square shape, and both side portions 13 and 13 thereof stand upright vertically. It is formed so as to be bent.

The chassis 20 is a steel plate (conductive member).
It is formed into a generally square shape in cross section by bending. As shown in the enlarged cross-sectional view of FIG. 7, both side portions 21 and 21 of the chassis 20 are formed on both side portions 13 and 13 of the lower case 10.
One point (line) on the inner edge 14a of each of the upper end faces 14, 14 of
The upper end is tilted slightly outward so as to abut, and is bent so that it stands up substantially vertically. The chassis 20 and the lower case 10 are integrated in a state where the chassis 20 is fitted into the lower case 10 by burring caulking (this caulking portion is indicated by reference numeral A) at two places on the bottom. Further, both side portions 21, 21 of the chassis 20
Is projected further upward than the both side portions 13, 13 of the lower case 10. As shown in FIG. 5, this chassis 20
Both sides 13, 21 of the lower case 10
In the center of the outer surface of the portion protruding upward, the protruding portions 22, 2
2 is integrally formed.

The upper case 30 is a steel plate (conductive member).
An outer surface 31a of 31 is formed by a so-called vinyl chloride steel plate in which a sheet (non-conductive member) 32 made of a vinyl chloride resin is attached to have a substantially U-shaped cross section, and both side parts 33, 33 of the same stand upright vertically. It is formed so as to be bent. The lower end surfaces 34, 34 of the side portions 33, 33 of the upper case 30 and the upper end surfaces 14, 14 of the side portions 13, 13 of the lower case 10, respectively.
14 are joined to each other, and the upper case 30 is fixed to the front and rear upper sides of the both side portions 21, 21 of the chassis 20 via the screws 60. As a result, the lower case 10 and the chassis 20
The outer casing 2 including the upper case 30 and the upper case 30 is formed in a square tubular shape. The front panel 40 is fitted into the front opening B and fixed by the screws 61, and the rear opening C has a square shape of synthetic resin. The rear panel 50 is fitted through the frame-shaped rear frame 6 and fixed by screws 62.
The lower case 10, the chassis 20, and the upper case 30 are
Of the adjusting ring 5 at a position facing the adjusting ring 5.
A pair of windows D, D exposing the above are formed. Also,
The outer surface of the front panel 40 is previously painted black.

The rear panel 50 is formed in a rectangular shape by a so-called vinyl chloride steel plate obtained by bonding an outer surface 51a of a steel plate (conductive member) 51 with a sheet (non-conductive member) 52 made of vinyl chloride resin. A part of the center of the upper edge of the rear panel 50 is bent inward at a right angle to form a protruding portion 53.
It has become. The tip 53a of the protruding portion 53 is further bent upward in a U shape so that the steel plate portion (conductive member portion) of the tip 53a contacts the inner surface of the steel plate 31 of the upper case 30.

A rectangular hole 54 is formed in the rear panel 50.
And a pair of large-diameter round holes 55, 55 and a small-diameter round hole 56 are formed. From the rectangular hole 54 of the rear panel 50, the connector 7 attached to the vertical piece 23 bent at the center of the rear end edge of the chassis 20 is exposed, and from the pair of round holes 55, 55, the vertical hole is formed. A pair of pin jacks 8, 8 mounted on a printed circuit board (not shown) attached to the horizontal piece 24 or the like at the upper end of the piece 23 are exposed so as to project outward. Further, the DC power supply terminal 9 mounted on the printed circuit board is exposed from the round hole 56 of the rear panel 50. The lower case 10, the upper case 30, the respective vinyl chloride resin sheets 12, 32, 52 of the rear panel 50 and the rear frame 6 are black.

According to the video camera 1 of the above-described embodiment, as shown in FIG. 2, both side portions 33, 33 and both side portions 13, 1 of the upper and lower cases 30, 10 constituting the rectangular tubular portion of the outer casing 2 are formed.
By joining the end faces 34 and 14 of No. 3 to each other, the end faces 34 and 14 are not exposed, and the appearance is good. Lower case 1 of chassis 20 fitted in the lower case 10
Both side portions 13 of 0, both side portions 21 protruding upward from 13,
Projection parts 22 and 22 are formed at the center of the outer surface of 21.
By screwing the upper and lower cases 30 and 10 with each other, the above-mentioned protrusions 22 and 22 are formed on the steel plate 3 of the upper case 30.
It contacts the inner surface of 1. As a result, the chassis 20 and the upper case 30 have good conductivity with each other.

Further, as shown in FIG. 4, the front end faces of the front side opening portions B of the upper and lower cases 30, 10 are not exposed by fitting the front panel 40. The electrical conductivity thereof is improved by the front end surfaces of the steel plates 31 and 11 of the upper and lower cases 30 and 10 and the masked portion of the inner surface of the front panel 40 coming into contact with each other and being screwed.

Further, as shown in FIGS. 1 and 4, the rear end surfaces of the rear openings C of the upper and lower cases 30 and 10 are hidden by the rear frame 6, and the rear panel 50 is electrically conductive. When the screws are fastened, the steel plate portion of the tip end 53a of the protruding portion 53 of the rear panel 50 is attached to the upper case 3
It becomes good by contacting the steel plate 31 portion of 0.

As described above, the outer casing 2 of the video camera 1 is
Since the exteriors of the upper and lower cases 30 and 10 and the rear panel 50 are covered with the vinyl chloride resin sheets 32, 12 and 52, the exterior coating can be eliminated and the cost can be reduced accordingly. In addition, the upper and lower cases 30, 10 described above
Since the steel plates 31 and 11 of the upper case 30 and the steel plate chassis 20 are brought into contact with each other, and the steel plate 31 of the upper case 30 and the steel plate portion of the protruding portion 53 of the rear panel 50 are brought into contact with each other, the outer casing 2 satisfying the conductivity is reduced. Can be provided at cost.

Although the video camera has been described as the electronic device according to the above-described embodiment, the present invention can be applied to various electronic devices having a case-shaped outer casing such as a VTR, a TV, an audio device, and various measuring devices. .

[0019]

As described above, according to the present invention, since the outer casing of the electronic device is configured and the outer surface of the lower case is covered with the non-conductive member, the exterior coating can be eliminated. Cost reduction can be achieved. Further, since the conductive member portions of the upper and lower cases come into contact with the chassis made of the conductive member, the conductivity of the outer casing is not impaired.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a rear side of an outer casing of a video camera showing an embodiment of the present invention.

FIG. 2 is an overall perspective view of the video camera.

3A is a side view of the video camera, FIG. 3B is a bottom view of the same, and FIG. 3C is a rear view of the same.

FIG. 4 is a sectional view of an outer casing of the video camera.

FIG. 5 is an exploded perspective view of the outer casing.

FIG. 6 is a sectional view of an essential part of a bottom portion of the outer casing.

FIG. 7 is a sectional view of a main part of a side part of the outer casing.

FIG. 8 is an exploded perspective view of a main part of an outer casing of a conventional video camera.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Video camera (electronic device) 2 ... Outer casing 10 ... Lower case 11 ... Steel plate (conductive member) 11a ... Outer surface 12 ... Vinyl chloride resin sheet (non-conductive member) 13, 13 ... Both sides 14 ... End surface 20 ... Chassis 21, 21 ... Both sides 30 ... Upper case 31 ... Steel plate (conductive member) 31a ... Outer surface 32 ... Vinyl chloride resin sheet (non-conductive member) 33, 33 ... Both sides 34 ... End surface 50 ... Rear panel 51 ... Steel plate (conductive member) 51a ... Outer surface 52 ... Vinyl chloride resin sheet (non-conductive member) 53 ... Projection portion A ... Crimped portion C ... Rear side opening portion

Claims (4)

[Claims] 1. A lower case in which an outer surface of a conductive member is covered with a non-conductive member to form an outer casing, and a lower case is formed in a substantially square cross section, and both side portions of the lower case are fitted into the lower case. A chassis having a substantially cross-sectional shape made of a conductive member that is projected further upward than both side parts that are projected upward, and an outer surface of the conductive member is covered with a non-conductive member to be formed in a substantially V-shaped cross section. An electronic device comprising an upper case in which end faces of both side parts protruding downward are joined to end faces of both side parts of the lower case. 2. The electronic device according to claim 1, wherein both side portions of the chassis are arranged so that outer surfaces of both side portions of the chassis come into contact with edges of a conductive member inside both side portions of the lower case. Electronic equipment characterized by being tilted inward on both sides. 3. The electronic device according to claim 1, wherein the lower case and the chassis are fixed by caulking. 4. The electronic device according to claim 1, wherein the outer casing is an outer casing of a video camera, and a rear opening of the outer casing is formed by covering an outer surface of a conductive member with a non-conductive member. The rear panel is closed, and at least a part of the conductive member of the rear panel is bent and protruded, and the conductive member of the protruding portion is brought into contact with at least one of the conductive member of the upper case and the chassis. Characteristic electronic equipment.