FR2646314A3 - GUIDEBOARD FOR PRINTED CIRCUIT BOARDS - Google Patents

Abstract

The guide plate is formed of a rectangular sheet in which are formed openings 6 in the form of rectangular trapezoids arranged in two symmetrical rows and whose edges are folded out of the plane of the sheet, the edges of the adjacent openings forming transverse grooves. 1 serving to guide the plates and a median longitudinal groove 3 for reinforcement.

Description

Guide plate for printed circuit boards The present invention

  relates to a platelet guide plate, the purpose of which is to be used to serve as a guide for platelets or printed circuit boards which are part of electronic equipment, in order to facilitate their insertion into the connection sockets where they must be inserted to perform the functions specific to each of them. This invention is especially indicated for application in the field of the telephone and electronic industry. There are at present various known elements whose function is to manage to guide the plates or plates of the electronic circuits, in order to facilitate

  their insertion in the bases or connection bases respectively

  tifs. However, in the context of all their varieties, they

  do not have the defining characteristics

  tives to the ease of initiating the insertion of the electronic circuit board in the guide itself, as well as to being accompanied by ease and economy

mounting.

  It should also be taken into account that in the devices

  or elements currently known, there is no possibility

  proper ventilation of platelets

  printed circuits, such a fact not favoring dissi

  pation of the heat generated by the circuits themselves.

  The obvious solution to such a problem would be to

  ability to have a platelet guide tray that pre-

  feel conditions likely to facilitate the initiation of the insertion of the electronic circuit board in the guide, while providing ease and economy of assembly, as well as the symmetry of the guide plate of the boards with respect to a longitudinal axis allowing use it

  as guides, both from the bottom of the board

  quette than from the top. Naturally, it should meet the required conditions

to ensure good ventilation.

  The platelet guide plate proposed by the invention consists of

  kills an effective solution to guide printed circuit boards for insertion into sockets

or respective connection bases.

  The materials used to make this tray-

  pad guide usually found on the market

  and they can be changed by subjecting them to

  thermal and mechanical elements to constitute, at different

  degrees of modification, the platelet guide plate clean-

said.

  The platelet guide plate basically consists

  by a sheet of material of rectangular shape and thick-

  reduced seur, on which, by a process of stamping and stamping, or by resorting to any other process, a double row of perforations is made, symmetrical to each other with respect to the longitudinal axis of the plate, all by giving a certain shape to the edges of the perforations in order to configure the guides of the plates themselves, by providing reinforcement ribs and by folding the two longer sides of the rectangle,

giving them the shape of a "Z".

  The perforations made, in addition to reducing considerably

  the weight of the guide plate, constitute, in connection with the printed circuit boards when they are installed, ventilation chimneys inside which air currents are produced by convection

  which sweep the surfaces of the printed circuits, in favor

  the dissipation of the heat generated there.

  The actual pad guides present at

  their mouth a shape such as this promotes sliding

  ment of the front part of the printed circuit board, leading it to the guide entry and sliding it

  the printed circuit board with light pressure.

  In order to impart rigidity to the guides which constitute the plate, a central rib has been arranged thereon, of the same configuration as the guides, by dividing the orifices of the guide plate into two rectangular trapezoids

  and constituting the longitudinal axis of symmetry of the plate.

  The two edges of the plate, symmetrical with respect to the aforementioned axis, have the shape of a "Z" with a view to their insertion in profiles provided for this purpose where their

  mounting on equipment racks.

  Likewise, on the two aforementioned edges there are a determined number of protuberances which have the object of adjusting the plate on the profile where it is mounted, to avoid any movements thereof and any vibrations when

the equipment works.

  The symmetry of the orifices made in the tray with respect to the longitudinal axis makes it possible to use the latter to guide both the lower part and the upper part.

  printed circuit boards.

  To complete the description which has just been made and

  in order to allow a better understanding of the characteristics

  ticks of the invention, there is annexed to the present description descrip-

  tif, of which they form an integral part, drawings in the-

  which: - Figure 1 shows a general view of the invention, in plan, on which cuts were made in

  the transverse direction, thereby eliminating an unessential part

  to its representation, with a view to reducing its representation

  graphics; - Figure 2 shows a side view of the invention; Figure 3 is a partial sectional view along line A-A of Figure 1; - Figure 4 is a partial sectional view along line BB of Figure 1;

  - Figure 5 finally shows a detail of the front part -

  tale of the invention, which is identical to the rear part.

  In view of the drawings, it can be observed that the platelet guide tray which is recommended consists of a sheet

  of material with a rectangular shape and a thick

  reduced sister, which has been subjected to a process of estam-

  page and stamping, or any other process, in order to give it its final form as shown on

Figure 1.

  The result of the above-mentioned processes is that a series of orifices in the form of a rectangular trapezoid 6 are formed, which occupy most of the surface of the plate and which are arranged in two

  lines symmetrical about the longitudinal axis of the platform

platelet guide.

  These perforations, in addition to considerably reducing the weight of the guide plate, constitute, in combination with the printed circuit boards, when these are installed in their position, ventilation chimneys inside which occur drafts of convection, which sweep the surfaces of the printed circuits by promoting the dissipation of the heat which is generated there. The wafer guides 1 consist of channels or grooves with an isosceles trapezoidal section, as shown

  in FIG. 3, in order to facilitate the sliding of the plates

printed circuit boards.

  Similarly, the wafer guides 1 have at the beginning and at the end a widening or flaring formed by the side 2 of the isosceles trapezoids, in such a way that the sliding of the front part of the wafer is facilitated. printed circuit board, bringing it to the entrance of the guide by o comes to slip

  the plate to its position of engagement or insertion.

  The central rib 3 coincides with the longitudinal axis of symmetry of the platelet guide plate and it has the same section as that of the platelet guides, which gives

to the whole rigidity.

  The edges of the plate 4, symmetrical with respect to the longitudinal axis of symmetry, have a "Z" shape, with a view to their insertion in the groove provided for this purpose

  on profile 7 in order to be mounted on the team buildings-

is lying.

  In the same way, on the edges of the plate 4 which, as already said above, are symmetrical with respect to

  at the longitudinal axis of symmetry there is a deter-

  mined with protuberances 5 distributed uniformly and of which

  the goal is to adjust or fit the edges 4-of the tray-

  guide of inserts in the groove of profile 7, in order to avoid

  its movement and vibrations when the equipment

  tion. The symmetry of the orifices made in the guide plate, with respect to the longitudinal axis, means that the latter can be used both for guiding the lower part of the printed circuit boards and the upper part thereof. We do not consider it necessary to pursue this

  description so that any subject matter expert understands

  the scope of the invention and the advantages arising therefrom.

  The materials, shape, dimensions and arrangement of the elements are subject to variations, provided

  that this does not involve altering the essence of the invention.

  The terms used throughout this specification should always be taken in the broadest sense and

not limiting.

Claims (6)

Claims   1.- Platelet guide plate of the type of those configured   from a sheet of rectangular material and thick-   reduced, characterized in that it is pierced with a   variable number of orifices (6) in the form of rectangular trapezoids   gles which are arranged on two lines symmetrical with respect to the longitudinal axis, and in that it has a series of channels or grooves (1) which constitute the guides of the plates and a groove (3) which serves as reinforcement of the guides. 2.- platelet guide plate according to claim 1, characterized in that the grooves of the platelet guides (1) have a trapezoidal section by o slide the printed circuit boards, the mouth or entry thereof having a shape such that the sliding of the front part of the printed circuit board is facilitated, by bringing it to the appropriate position   to be introduced into the platelet guides.   3.- Platelet guide plate according to one of the claims   tions, characterized in that it is pierced with a series of perforations (6) which occupy most of the surface of the plate, which constitute a system for ventilating the printed circuit boards installed.   4.- Platelet guide plate according to one of the claims   above, characterized in that the guides   of plates (1) are symmetrical with respect to the long axis   tudinal of the tray, which allows it to be used as a guide for the upper part of the inserts printed circuit board only from the bottom.   5.- Platelet guide plate according to one of the claims   above, characterized in that its edges (4), - 2646314   symmetrical with respect to the longitudinal axis of the plate, adopt the shape of a "Z" which allows the installation of the tray on profiles (7).   6.- platelet guide plate according to claim 5, characterized in that the two edges (4) which have the shape of a "Z" have an appropriate number of bulges   or protrusions (5) which allow the nesting of the plate-   guide in the profile groove (7) where it is installed under a little push.