JPS6221025Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a fixture for electronic components such as fluorescent display tubes.

Generally, a display element such as a fluorescent display tube is used for a display unit such as a timer in an electronic component such as a VTR, and conventionally, this display element has been attached in the following manner.

That is, as shown in FIGS. 1 and 2, first, the pair of protruding pins 2a, 2a of the fixture 2 are inserted into the pair of through holes 1a, 1a of the printed circuit board 1, positioned, and then inserted from the back side of the printed circuit board 1. The fixing screw 3 is screwed into the boss 2b of the fixture through the through hole 1b. This boss 2b is slightly shorter than the protruding pins 2a, 2a. Then, the plurality of terminal boards 4a, 4a, . By fitting the rib 2c of the display element 4
is positioned relative to the printed circuit board 1. Thereafter, as shown in FIG. 2, the terminal plates 4a, 4a, . . . are bent and soldered to prevent them from coming off.

In general, the terminal boards of electronic components such as those mentioned above are very easily deformed, and are often deformed in a direction perpendicular to the direction in which the terminal boards are arranged due to vibrations during transportation. It is difficult to provide an independent insertion hole for each terminal board on the printed circuit board because the terminal board must be made large to some extent in anticipation of deformation of the terminal board. However, in the case of such an insertion hole, when each terminal board is bent outward and soldered as shown in Fig. 2, a gap is created between the terminal board and the inner wall of the insertion hole, so that the inside of both terminal board rows is It was not possible to provide a wiring pattern on the printed circuit board, which was an obstacle to the effective use of the printed circuit board.

The present invention was developed in view of the above points, and by providing a guide hole for guiding the terminal board of an electronic component in the fixture, the terminal board can be accurately inserted into a relatively small terminal board insertion hole on a printed circuit board. The present invention provides an electronic component mount that can be used to mount electronic components.

An embodiment of the present invention will be described below with reference to the drawings. FIG. 3 is an exploded perspective view of the device of the present invention, FIG. 4 is a sectional view of the same, and FIG. 5 is a plan view of the guide hole.
The printed circuit board 1' has terminal plate insertion holes 1a', 1a', into which the terminal plates 4a, 4a, .
b′ is provided.

In addition, the fixture 2' includes a pair of clamping pieces 2a', 2a' (engaging means) for fixing the fixture 2' inserted into the pair of through holes 1b', 1b' of the printed circuit board, and a pair of positioning ribs 2b' for positioning;
A pair of clamping ribs 2c', 2c' (clamping means) for elastically clamping the display element 2b' and the base 4b of the display element 4 are provided. Furthermore, a pair of inclined surfaces 2d', 2d' and a plurality of guide holes 2e', 2e', . As shown in FIG. 5, each guide hole is composed of a part of an inclined surface 2d', three inclined parts 2f', 2f', 2f', and a square hole 2g' continuous to these, and is formed by a printed circuit board 1'. It is made to coincide with each through hole 1a' of.

Next, the installation of these components will be explained. First, when the clamping pieces 2a', 2a' of the fixture 2' are inserted into the through holes 1b', 1b' of the printed circuit board 1', the clamping parts 2' are attached to the printed circuit board 1' by the hooks at the ends of the clamping pieces 2a', 2a'. Fixed.

Next, the display element 4 is attached to the fixture 2 from the direction A in FIG. Element 4 is fixed to fixture 2'. At this time, the terminal plates 4a, 4a... are the inclined surfaces 2d' and/or the inclined surfaces 2f', 2 of the guide hole 2e'.
f' and 2f', the deformation in the direction (B direction in Figure 3) perpendicular to the arrangement direction of the terminal board 4a is corrected, and the square hole 2g' and the terminal board insertion hole 1 of the printed circuit board are corrected.
guided by a′.

Then, as shown in FIG. 4, the terminal board 4a and the printed circuit board 1 are soldered.

In this embodiment, the display element is positioned and fixed by the terminal plate, so there is no need to bend the terminal plate to prevent it from coming off as in the conventional example shown in FIG.

As described above, according to the present invention, when attaching an electronic component to a printed circuit board via a fixture, by guiding the terminal board along the inclined guide hole,
Not only is it extremely easy to install components, but the deformation of each terminal board can be corrected and inserted into the terminal board insertion hole provided at a predetermined position on the printed circuit board. It can be made independent and as small as possible.

In addition, the display element 4 inserts the terminal plate 4a into the terminal plate insertion hole 1.
Uniform positioning can be achieved by simply inserting it into a'. However, in the present invention, the display element 4 has a rib 2
b', 2b' and the clamping ribs 2c', 2c' allow for accurate positioning and retention on the fixture 2'. Therefore, the terminal plate 4a is connected to the printed circuit board 1'
When soldering the display element 4 to the ribs 2b', 2b', 2c', and 2c', the display element 4 is fixed by the ribs 2b', 2b', 2c', and 2c'. is good.

Although the above-described embodiments have been described using a fluorescent display tube as the display element, it is obvious that this can also be applied to other electronic components. Further, although the display element of the above-described embodiment is provided with terminal plates on both sides, the present invention is not limited to this.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a conventional electronic component mounting device, FIG. 2 is a central sectional view thereof, and FIG. 3 is an exploded perspective view of an electronic component mounting device in an embodiment of the present invention.
FIG. 4 is a sectional view of the center, and FIG. 5 is a top view of the guide hole. 4... Display element (electronic component), 4a... Terminal board, 1'... Printed circuit board, 1a'... Terminal board insertion hole (through hole), 2'... Mounting tool (electronic component mounting tool),
2a'... Holding piece (engaging means), 2e'... Guide hole (hole), 2d'... Inclined surface (inclined part), 2f'... Inclined part, 2b'... Rib (positioning rib), 2c′... clamping rib (clamping means).

Claims (1)

[Claims for Utility Model Registration] In order to insert a row of terminal plates forming a common bending surface and aligned in the longitudinal direction of the electronic component into a row of through holes formed in the printed circuit board, the electronic component and the printed circuit board an electronic component mounting tool interposed between: an engaging means that engages with the printed circuit board; a hole row formed to match a through hole row of the printed circuit board; and each of the hole rows. an inclined part for guiding the insertion of a terminal board formed around the entire inner wall of the hole; and a sloped part for guiding the insertion of the terminal board, which protrudes along the direction in which the electronic component is attached to the electronic component mounting tool, and contacts only the outer periphery of the electronic component, so that the electronic component An electronic component mounting tool comprising: a positioning rib for positioning the component; and a clamping means for elastically clamping only the peripheral edge of the electronic component.