JP2006049787A - Electrical equipment housing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrical equipment housing that can maintain the reliability of electronic circuitry and secure its safety. <P>SOLUTION: This is a cylindrical electrical equipment housing in which a pair of electrically conductive halves 10 and 20 provided with an insulation film are closed in such that their aperture edges overlap. An extrusion 15 is formed near the aperture edge of one top side half 10. A notch 25 that receives the extrusion 15 is formed at the position related to the aperture edge 22 half body 20 in the pace side. Respective edge shapes of the extrusion 15 and the notch 25 are determined such that at the time of closure, the edges slide to each other and the contacting pressure gradually increases together with the sliding. When sliding, the edge of the notch 25 deforms. Holes 29 are formed near the notch 25 so that this deformation may take place. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an electric equipment case including a pair of conductive halves provided with an insulating film.

  A cylindrical electric device case including a pair of conductive halves provided with an insulating film is well known. It is normal to ground each half of this body, but only one of them is grounded.

The cylindrical electrical device case is provided with an insulating film. For this reason, since electrical conductivity is not ensured as an electric equipment case, malfunctioning by the noise of the electronic circuit inside an electric equipment case may generate | occur | produce. If the insulating film peels off, there is a possibility of electric shock.
An object of the present invention is to ensure the electrical conductivity of a cylindrical electrical device case provided with an insulating film, and to maintain the reliability of the electronic circuit and ensure safety.

In the present invention, a pair of conductive halves provided with an insulating film is provided. An opening edge is provided in one of the pair of conductive halves, and an extrusion is formed in the vicinity of the opening edge, and a notch for receiving the extrusion is formed in a position related to the opening edge.
In the present invention, a pair of conductive halves provided with the insulating film are combined so that the extrusion and the notch are closed.

  According to the present invention, when a pair of conductive halves provided with an insulating film are closed, the extrusion formed near the opening edge of one half lid and the extrusion formed on the other half lid are Receiving notch edge shapes slide relative to each other. As the sliding occurs, the contact pressure of each edge gradually increases, and electrical conductivity is ensured as a cylindrical electrical device case, so that it is possible to maintain the reliability and safety of the electronic circuit.

An embodiment of the present invention will be described with reference to FIGS. 1 and 2. This case is a cylindrical electrical device case that closes a pair of conductive halves 10 and 20 to which an insulating film is applied so that their opening edges overlap. An extrusion 15 is formed in the vicinity of the opening edge 12 in one lid-side half 10. A notch 25 for receiving the extrusion 15 is formed at a position related to the opening edge 22 in the other base side half 20. The edge shapes of the extrusion 15 and the notch 25 are determined so that the edges slide with each other during the closing and the contact pressure gradually increases with the sliding. During the sliding, the edge of the notch 25 is deformed. A hole 29 is formed in the vicinity of the notch 25 so that this deformation occurs.
During the sliding, the insulating film is broken, and electrical conduction between the base-side half 20 and the lid-side half 10 is ensured through the extrusion 15 and the notch 25. For example, the berth side half 20 is grounded outside the figure. It may be connected to an attachment plate (not shown) for attaching the berth side half 20. Thereby, the earth | ground of the lid | cover side half body 10 is also ensured through the extrusion 15 and the notch 25. FIG.
The shape around the notch 25 is changed to a shape according to the shape of the extrusion 15 by the contact pressure, and the conductive lid side half upper part 10 provided with the insulating film and the conductive material provided with the insulating film. The conductive base-side half lower part 20 comes into contact with the conductive part from which the insulating film has been peeled off.
In the present invention, as described above, it is possible to ensure conductivity in a cylindrical electric device case that closes a pair of conductive half-covers provided with an insulating film. Therefore, there is no possibility of malfunction of the electronic circuit inside the electrical equipment case due to the electrical equipment case conductivity discontinuity and the possibility of electric shock due to peeling of the insulating film, and the reliability and safety of the electronic circuit are ensured.

It is an exploded front view of the present invention. It is a side view of FIG. It is explanatory drawing explaining the procedure of the closure.

Explanation of symbols

10: lid side half 11: opening edge 15: extrusion 20: base side half 21: opening edge 25: notch 29: hole

Claims (1)

  In a cylindrical electric device case for closing a pair of conductive halves (10, 20) provided with an insulating film so that their opening edges overlap, the opening in one lid side half (10) An extrusion (15) is formed in the vicinity of the edge (12), and a notch (25) for receiving the extrusion (15) is formed at a position related to the opening edge (22) of the other base-side half (20). The edge shapes of the extrusion (15) and the notch (25) are determined so that the edges slide with each other at the time of closing and the contact pressure gradually increases with the sliding. Electrical equipment case.

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