JPS6233357Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of an insulating sheet mounting device.

Generally, in electrical equipment such as car stereos, if the cabinet is made of metal, there is a risk that the cabinet and internal electrical parts may come into contact with each other, so an insulating sheet (fiber, press board, etc.) is installed between them. Preventing contact. Although it is common practice to contact the back side of the cabinet with an insulating sheet because of its high productivity, it takes a lot of man-hours to apply adhesive and attach the insulating sheet, leading to high costs.

The present invention has been devised to solve the above-mentioned drawbacks, and improves work efficiency by using the cut-out part of the metal cabinet or chassis to lock the through hole provided in the insulating sheet to the cut-out part. This paper proposes a configuration that improves the performance.

Next, the present invention will be explained with reference to the drawings. The metal cabinet 1 is provided with cut-out pieces 2, 2', and 2'', and the insulating sheet 3 is placed on top of the cut-out pieces 2, 2', and 2''. 4, 4' are provided, and locking protrusions 5, 5', 5'' are provided on the inner peripheral edges of the through holes 4, 4', so that the insulating sheet 3 can be placed on top of the cabinet 1. At this time, cut and draw pieces 2,
2', 2'' are inserted, and the locking protrusions 5, 5', 5'' on the periphery of the through-holes 4, 4', 4'' are inserted into the cutting and diaphragm pieces 2,
2', 2'' are locked in the lateral direction 6, 6', 6''. The situation is shown enlarged in FIG.

FIG. 3 shows how the mounting device of the present invention is applied to a car stereo. That is, after the insulating sheet 3 is secured to the cut-out pieces 2, 2' of the cabinet 1, a tape reproducing mechanism 7 for reproduction only is fixed to the top surface of the cut-out pieces 2, 2' with screws 8, 8'. 8 is a printed circuit board provided on the bottom side of the mechanism 7;
On the board 8 are electrical elements 9 such as resistors and capacitors,
9' is fixed by soldering. An insulating sheet is inserted between the mechanism 7, electrical parts such as the printed circuit board 8, and the electric element 9, and the metal cabinet 1 to completely insulate electrical contact between the two.

[Brief explanation of the drawing]

The drawings all show the insulating sheet mounting device of the present invention; FIG. 1 is an exploded perspective view thereof, FIG. 2 is an enlarged sectional view of the main parts, and FIG. 3 is a sectional view of the insulating sheet mounting device of the present invention. . 1...metal chassis or cabinet, 2,
2', 2''... Cutting piece, 3... Insulating sheet, 4,
4', 4''...through hole, 5, 5', 5''...locking protrusion, 6, 6', 6''...side hole, 7, 8, 9...electrical component.

Claims (1)

[Scope of utility model registration request] A metal chassis or cabinet provided with a cut-out piece, an insulating sheet having a through hole at a position corresponding to the cut-out piece and a locking protrusion on the inner peripheral edge of the through hole, and the chassis or cabinet. the insulating sheet is placed so that the through hole of the insulating sheet fits into the cut-out piece of the chassis or cabinet, and the electrical component is placed in the side hole of the cut-out piece of the chassis or cabinet; An insulating sheet mounting device characterized by fitting and locking protrusions of the insulating sheet.