JPS6325673Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a twin tab receptacle, and more specifically, to an improvement of the tab attachment structure of a plug-in twin tab receptacle that allows tab terminals of different thicknesses to be inserted. be.

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. Alternatively, a tab receptacle was housed and fixed within the housing, and a tab to which an electric wire was attached was inserted into the tab receptacle. However, there are drawbacks such as the number of man-hours required to attach the tab or the tab receptacle to the insulating substrate is complicated and that tab terminals of different thicknesses cannot be inserted.

This invention aims to eliminate the above-mentioned drawbacks, and its features include a first tab clamping part formed on an elastic conductive plate, one edge of this tab clamping part, and a first tab clamping part formed on an elastic conductive plate. a second tab clamping part that is connected to the first tab clamping part through a curved part thereof and facing the first tab clamping part at a predetermined interval; The edge of the second clamping part approaches the side surface of the edge of the second curved part that is connected to the edge of the clamping part, and each clamping part is The present invention provides a twin tab receptacle configured so that tab terminals of different thicknesses can be inserted between the respective clamping portions by making the facing intervals different. An embodiment of this invention shown in the drawings will be described in detail below.

Figure 1 is a perspective view of the twin tab receptacle;
This double receptacle 1 is made by punching and bending a thin elastic metal plate such as copper or phosphor bronze, and its structure consists of a flat first tab clamping part 12 formed on an elastic conductive plate, and this tab. A flat plate connected to one edge of the clamping part via the first curved part 13 and facing the first tab clamping part 12 at a predetermined distance (slightly smaller than the thickness of the tab terminal). The second tab clamping part 14 and the second tab clamping part 12 are arranged close to the outer surface of the other edge side of the first tab clamping part 12 and the first curved part 13.
Along with a second curved part 15 which is curved so as to impart elasticity to both ends of the clamping part 14, there is a second curved part 15, which will be described later, located approximately in the center of the first and second curved parts 13 and 15 on the opposite surface side of the clamping part. As shown in FIG.
In order to facilitate the insertion of the tab terminal, insertion guide portions 18 and 19 are respectively formed protruding from the edges of the tab clamping portions 12 and 14 of the clamping portions 12 and 14 of both the clamping portions 12 and 14. 12,14
By varying the facing distances of the respective clamping parts with the slit 1A formed at approximately the center in the length direction of the clamping parts 12a and 14 as a boundary, tab terminals 2 with different thicknesses can be provided between the clamping parts, and 2a can be inserted therein.

Figures 2a and 2b show the tab terminals 2 and 2a inserted between the tab clamping parts 12, 14 and 12a, 14 of this tab receptacle 1. In each of the above figures, 21 and 21a are plate-shaped. Insert terminal piece, 2
2 is a crimp connection portion of the electric wire 5.

3 and 4 show an insulating substrate 3 to which a tab receptacle 11 having the above-described structure can be attached, and a tab large enough to allow the thick insertion piece 21a to be freely inserted into the flat plate portion 31 of the insulating substrate 3. An insertion hole 32 is formed, and approximately L-shaped locking protrusions 33a, 33b and 34a, 34b protrude downward from both sides of the hole so as to face each other, and the end surfaces of each locking protrusion curved portions 35a, 35b, 36 that follow the outer peripheral curved surfaces of the curved portions 13, 15;
a, 36b are formed. As shown in FIG.
When the flat plate portion 31 is pushed toward the side while being located between the locking claws 16a and 16a and 34b, the locking claws 16a and 1
6b and 17a, 17b temporarily loosen inward, and then the locking protrusions 33a, 33b and 34a,
35 of the curved portion of the arc-shaped portions 35 and 36 of 34b
a, 35b, 36a, 36b and expands outward again on the upper surface, and at this time, the insertion guide part 1
8 and 19 are located in the tab insertion hole 32, the tab terminal 21a can be easily inserted, and even if the tab receptacle 1 is moved in the opposite direction to the mounting direction or in the lateral direction, the locking pawl and protrusion will not move. The curved portions 35a, 35b, 36a, and 36b function effectively and are completely attached to the substrate 3.

To connect the electric wire 5, insert the insertion piece 21a of the tab terminal from above between the tab clamping parts 12a and 14 of the tab receptacle through the tab insertion hole 32 from the upper surface side of the flat plate part 31, as shown in FIG. These insertion pieces 21 are inserted by inserting the insertion pieces 2 from below.
and 21a, the upper and lower electric wires 5, 5 are electrically and mechanically connected.

That is, as shown in FIG. 5, the insertion piece 2 of the tab terminal is
1 facing upward, tab terminals can be connected to the top and bottom of the tab receptacle 1.

As mentioned above, the bisecting point 1A in the length direction of the clamping part
Since the opposing distances between the clamping parts are different from each other, it is possible to insert the insertion piece 21a of the thick tab terminal 2a and the insertion piece 21 of the normal thickness tab terminal 2 from both the top and bottom of the tab receptacle 1. As shown in FIG. 7, by providing the bisecting point 1A in the tab clamping portion, even if tab terminals of different thicknesses are inserted, each can be completely clamped.

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

In addition, the receptacle described above has a bisecting point 1A as shown in the developed view shown in Fig. 7, but the bisecting point 1A may be provided on either the left or right side, and further, as shown in Fig. 4. A through hole is provided in place of the locking claws 16, 17, and the locking protrusions 36a, 36 are provided in the through hole.
b may be configured to be locked.

As described above, this invention includes a first tab clamping part formed on an elastic conductive plate, and a first tab clamping part that is connected to one edge of the tab clamping part through a first curved part. a second tab clamping part that faces the first tab clamping part at a predetermined distance from the second tab clamping part; By bringing the edges of the second clamping parts closer to each other, and by making the opposing intervals of each clamping part different with the bisecting point in the length direction of the clamping part as a boundary, there is a gap between the respective clamping parts. Since it is configured so that tab terminals of different thicknesses can be inserted, it has the effect that at least two types of tab terminals of different thickness can be inserted and used in one type of tab receptacle with good contact and compatibility. .

[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 2b is a perspective view of a tab terminal with a different thickness from that shown in Figure 2a;
Fig. 3 is a perspective view of the main part of the insulating board to which this tab receptacle is attached, Fig. 4 is a cross-sectional view of the tab receptacle attached to the insulating board, and Figs. 5 and 6 respectively show the tab receptacle of this invention. Cross-sectional view with and before inserting the tab terminal, No. 7
The figure is a developed view of the tab receptacle. 1...Tab receptacle, 1A...2nd point, 2
2... Electric wire attachment part, 12, 12a, 14... Tab clamping part, 13, 15... Curved part, 16a, 16
b, 17a, 17b, 16, 17...Latching claw, 1
8, 19...Guiding part, 3...Insulating substrate, 33a,
33b, 34a, 34b...Lock protrusion, 32...
Tab insertion holes, 35a, 35b, 36a, 36b...
...Curved section.

Claims (1)

[Scope of utility model registration request] a first tab attachment portion formed on the elastic conductive plate;
A second tab clamping part is connected to one edge of the tab clamping part via a first curved part and is opposed to the first tab clamping part at a predetermined distance. , the edge of the second tab clamping part is brought close to the side surface of the edge of the second curved part connected to the other edge of the first tab clamping part, and the edge of the second tab clamping part is moved in the longitudinal direction of the clamping part. 2
The space between the respective clamping parts facing each other changes according to the thickness of the insertion tab terminal with the equinox as the boundary, so that tab terminals of different thicknesses can be inserted between the respective clamping parts. Twin tab receptacle.