JPS6017815Y2 - Twin tab receptacle locking device - Google Patents

Description

[Detailed description of the invention] This invention relates to a locking device for twin tab receptacles.
More specifically, the present invention relates to an improvement in the mounting structure of a plug-in twin tab receptacle to an insulating substrate.

In general, a plug-in type electrical connector consisting of a tab and a tab receptacle is attached to an insulating board on the tab side using fixing means such as caulking or screws, and the tab receptacle attached to the end of the wire is inserted into this tab. In other words, the tab receptacle was housed and fixed in the housing, and the tab with the electric wire attached was inserted into it.

However, the number of man-hours required to attach the tab or tab receptacle to the insulating substrate is large and complicated.

This invention is aimed at eliminating the above-mentioned drawbacks, and is made by forming a clamping part in the center for clamping the tab, and forming elastic parts on both sides with curved parts connected to the clamping part. A pair of upper and lower locking protrusions is provided on the outer circumferential surface of both corner bent portions of the twin tab receptacle of the electrically conductive plate, a tab receptacle insertion hole is provided in the other insulating substrate, and the tab receptacle is press-fitted into the insertion hole, A locking device for a twin tab receptacle is provided, characterized in that locking protrusions of a curved portion of the tab receptacle are locked to both upper and lower edges of the insertion hole.

An embodiment of this invention shown in the drawings will be described in detail below.

FIG. 1 is a perspective view of a twin-shaped tab receptacle. This tab receptacle 1 is made by punching and bending a thin elastic metal plate such as copper or phosphor bronze, and its structure includes a flat first tab clamping part. 12, connected to one edge of this tab clamping part via the first curved part 13, and separated from the first tab clamping part 12 by a predetermined distance (slightly smaller than the thickness of the tab terminal). A first curved portion 13 facing the outer surface of the other edge of the flat second tab clamping portion 14 and the first tab clamping portion 12 facing each other.
Together with the second curved part 15 which is curved so as to impart elasticity to both ends of the second clamping part 14, the substantially middle part of the first and second curved parts 13.15 is as described below. ,
Tab terminals are inserted into the upper and lower pairs of locking protrusions 16a, 16b and 17a, 17b and the edges of the tab clamping parts 12, 14, respectively, so as to be locked to the upper and lower edges of the insertion holes formed in the insulating substrate. Insertion guide part 1 to facilitate
8.19 are respectively formed to protrude.

Figures 2a and 2 show the tab terminal 2 inserted between the tab clamping parts 12 and 14 of the tab receptacle 1. In each of the above figures, 21 is a plate-shaped insertion terminal piece, and 22 is an electric wire. 5
This is a crimp connection.

FIG. 3 shows an insulating board 3 to which the tab receptacle 1 having the above-described structure can be attached.The flat plate part 31 of the insulating board 3 has an insertion hole 32 large enough to allow the tab receptacle to be inserted freely. The tab receptacles to be brought into elastic contact with the upper and lower edges are provided with locking protrusions 16a, 16b and 1.
7a and 17b are provided and the curved portion 13.15 is inserted into the insertion hole 32.
If it is press-fitted along the inner circumferential surface of the tab receptacle, it will be pushed by the sloped surface of the locking protrusion, the clamping part 12.14 of the tab receptacle will approach, the curved part 13.15 will shrink, and the protrusions 16a, 16b and 17a and 17b.

The tab receptacle 1 of this invention has locking protrusions 16a, 16b and 17ai on the curved portion 13.15 of the base plate 3 as shown in FIGS. 4 and 6. Since the projections 16a, 16b and 17a, 17b are fitted into the insertion hole 32 of the flat plate part 31 while being located between the holes 16a and 17b, the locking projections 16a, 16b are temporarily loosened inwardly. and 1
It expands outward again in the recess between 7a and 17b, and at this time the insertion guide 18, 19 passes through the tab insertion hole 32.

Further, even if the receptacle 1 is attempted to be moved in a direction opposite to the mounting direction or in a lateral direction, the insertion hole and the protrusion work effectively and the receptacle 1 is completely mounted on the substrate 3.

To connect the electric wire 5, as shown in FIG.
Insert the tab terminal insertion piece 21 from both the upper and lower sides between the tab clamping parts 12 and 14 of the tab receptacle through the insertion hole from the upper surface side.
．． 21, these insertion pieces 21.21 and therefore the upper and lower electric wires 5.5 are electrically and mechanically connected.

That is, as shown in FIG. 4, tab terminals can be connected to the top and bottom of the tab receptacle 1 by inserting the tab terminal insertion pieces 21 upward from below the tab receptacle 1 in the same manner as described above.

Furthermore, the second curved portion 1 of the receptacle 1 according to this invention
As shown in FIG.
The end surface of the curved portion 15 may be in contact with the tab terminal, and a locking projection may be provided on the flat surface of the first and second curved portions 13.15. 16 and 17 may be cut and bent and locked at the upper and lower edges of the insertion hole of the insulating substrate as shown in FIG.

Note that in FIGS. 5, 6, and 7, parts given the same reference numerals as those in FIGS. 1 to 4 above indicate the same or equivalent parts.

Further, the portion indicated by the reference numeral 36 may be an insulating cylinder and may be integrally molded with the substrate 3.

As described above, this invention is an elastic conductive plate that has clamping parts 12 and 14 for clamping the tab in the center and curved parts 13 and 15 that connect with the clamping parts on both sides. A pair of upper and lower locking protrusions 16 and 17 are provided on the outer circumferential surface of both corner bent portions of the twin tab receptacle 1, and a tab receptacle insertion hole 32 is provided in the other insulating substrate 3, and the tab receptacle 1 is inserted into this insertion hole. The locking protrusions 16 of the curved portion 13.15 of the tab receptacle are press-fitted to the upper and lower edges of the insertion hole 32.
Since the tab 17 is locked, attachment to the locking protrusion formed on the insulating board can be done automatically without the need for fixing means such as screws, and the twin tab receptacle is made of an elastic conductive plate. On the top, there is a clamping part to clamp the tab in the center, and curved parts are formed on both sides, so it is extremely elastic, so there are locking protrusions on the outer circumferential surface of the curved part. Even if the tab receptacle is provided, it is relatively easy to press-fit the tab receptacle into the insertion hole, and furthermore, after the tab receptacle is attached, the effect is that the attachment is extremely strong due to the reaction caused by the combined elasticity of the above-mentioned parts.

[Brief explanation of the drawing]

The figures all show one embodiment of this invention; Fig. 1 is a perspective view of a tab receptacle, Fig. 2a is a perspective view of a tab terminal with an electric wire attached to the tab receptacle, and Fig. Figure 2 is a perspective view of what is shown in Figure 2a viewed from above, Figure 3 is a perspective view of the main part of the insulating board to which this tab receptacle is attached, and Figure 4 is the state in which the tab receptacle is attached to the insulating board. 5, 6 and 7
The figures are a perspective view and a cross-sectional view, respectively, showing other modifications of the main parts of the tab receptacle and insulating substrate of this invention. 1... Tab receptacle, 12, 14...
...Tab clamping part, 13, 15...Curved part, 16
a, 16b, 17 a, 17 b, 16.
11... Locking protrusion, 18.19...
Guide portion, 3... Insulating board, 32... Tab receptacle insertion hole.

Claims (1)

[Scope of utility model registration request] Forming clamping parts 12 and 14 to clamp the tab in the center,
A twin tab receptacle 1 made of an elastic conductive plate has curved parts 13 and 15 connected to the clamping parts on both sides.
A tab insertion hole 32 is provided in the other insulating substrate 3, and the tab receptacle 1 is press-fitted into this insertion hole. A locking device for a twin tab receptacle, characterized in that portions 16 and 17 are locked.