JPS584219Y2 - Printed circuit board fixing device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for fixing a printed circuit board in electronic equipment such as a television receiver, and its purpose is to facilitate fixation and to construct the device itself at low cost. shall be.

Conventionally, a plurality of screws have been used to secure a printed circuit board in a cabinet of a television receiver or the like, but this has been problematic in that it is cumbersome to operate and lacks serviceability.

The present invention has been devised in view of the above points, and one embodiment thereof will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a cabinet, which has an abbreviated protrusion 2 integrally formed on its bottom plate.

Reference numeral 3 denotes a printed circuit board installed in the cabinet 1, which fixes the flyback transformer 4 together with resistors, capacitors, etc. (not shown), and one end of which, although not shown, abuts against the tip of the cabinet 1. It is supported by ribs or the like so as to float above the bottom plate of the cabinet 1.

Reference numeral 5 designates a print holder, which has a vertical plate portion 5b protruding perpendicularly to the substrate portion 5a at the center of one surface of the substrate portion 5a, and further extends a part of the vertical plate portion 5b, and the tip thereof is 9.
The top plate part 5C is bent by 0° and is perpendicular to the vertical plate part 5b.
A side plate portion 5d connected to the vertical plate portion 5b and the top plate portion 5C is integrally formed, and a pair of side plate portions 5d for holding the other end of the printed circuit board 3 are formed between the base plate portion 5a and the vertical plate portion 5b. The ribs 5e and 5f are integrally formed.

At this time, the pair of ribs 5e and 5f are each formed on the surface in the direction in which the top plate portion 5C projects.

6 is a back cover fixed to the cabinet 1;
A rib 7 is integrally formed to sandwich the other end of the substrate portion 5a of the print holder 5 between the protrusion 2 and the bottom plate of the cabinet 1.

Specifically, the rib 7 is formed by cutting out the lower part of the protruding piece to form a recess 8 into which the other end of the substrate portion 5a of the print holder 5 is fitted.

The pair of ribs 5e, 5f and the rib 7 are provided in multiple sets (pieces).
It is preferable to set it up.

In the above configuration, the following assembly operation will be explained.

Here, it is assumed that the printed circuit board 3 is supported by the cabinet 1 at one end, and that the printed circuit board 3 is also positioned by the cabinet 1 in the left and right directions.

Next, the print holder 5 is mounted on the bottom plate of the cabinet 1 so that one end of the circuit board part 5a fits into the protrusion 2 provided on the cabinet 1, and the other end of the printed circuit board 3 is connected between the ribs 5e and 5f. By fitting between them, the printed circuit board 3 is supported floating above the bottom plate of the cabinet 1, and the printed circuit board 3 is prevented from wobbling in the vertical direction.

At this time, the flyback transformer 4 on the printed circuit board 3 is simultaneously connected to the vertical plate portion 5b of the print holder 5 and the top plate portion 5.
It is in a state surrounded by the C9 side plate portion 5d.

By surrounding the flyback transformer 4 with a part of the print holder 5 in this way, it is possible to prevent the flyback transformer 4 from swinging and colliding with other parts when an impact is applied to the printed circuit board 3. , lead wires (not shown) can be prevented from coming into contact with the flyback transformer 4.

After that, when the back cover 6 is fixed to the cabinet 1, the other end of the substrate part 5a of the print holder 5 fits into the recess 8 of the rib 7, and is vertically sandwiched between the rib 7 and the bottom plate of the cabinet 1, and the protrusion 2 and ribs 7 in the front-rear direction.

The print holder 5 may be positioned in the longitudinal direction by providing a projection or the like on the bottom plate of the cabinet 1.

As explained above, according to the present invention, when fixing the back cover to the cabinet by using a manufactured print holder, the support of the printed circuit board in the front and rear directions and the vertical direction is peeled off at the same time. This eliminates the need to tighten screws, improving work efficiency, and also improves serviceability when inspecting or repairing printed circuit boards because the holder is no longer held when the back cover is removed.

In addition, safety is improved because the print holder surrounds the flyback transformer to prevent contact with lead wires, etc., and protects the flyback transformer itself.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a holder used in a printed circuit board fixing device according to an embodiment of the present invention, and FIG. 2 is a sectional view showing a state in which a printed circuit board is fixed using the same holder. 1...cabinet, 2...protrusion, 3
...Printed circuit board, 4...Flyback transformer, 5...Print holder, 5a.
... Board part, 5b... Vertical plate part, 5C.
...Top plate part, 5d...Side plate part, 5e, 5
f...Rib, 6...Back cover, 7
...Ref.

Claims (2)

[Scope of utility model registration request] (1) An abbreviated protrusion is provided on the bottom plate of the cabinet that stores the printed circuit board, and a first rib having a notched recess is provided on the back cover fixed to the cabinet, and A pair of second plates each having a vertical plate portion extending perpendicularly to the substrate portion from the center of one side, and holding one end of the printed circuit board between the substrate portion and the vertical plate portion. A print holder integrally formed with a third rib is provided, and the printed circuit board is attached to the second rib. One end of the board section of the print holder held by the third knob is fitted into the protrusion to fix the back cover to the cabinet, and the other end of the board section is fitted into the notch recess, and the board section A printed circuit board fixing device, which is sandwiched between the protrusion and the first rib. (2) The print holder is formed by bending the tip extending from the vertical plate part at a right angle to form a top plate part and a side plate part integrally, and each plate part surrounds a flyback transformer on a printed circuit board. The printed circuit board fixing device according to scope 1.