JPH0697621B2 - Connector with built-in capacitor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a connector having a built-in capacitor for absorbing surge voltage, which enables automatic assembly.

[Prior Art] FIGS. 5 to 6 are exploded perspective views showing a conventional connector with a built-in capacitor in the order of assembling steps, and FIG. 7 is a transverse sectional view (upward view) showing a completed state.

In FIG. 5, reference numeral 22 denotes a holding plate, and the holding plate 22 is provided with a pair of terminal insertion holes 26, 26 in the orthogonal direction. Into the terminal insertion hole 26, the male tab terminal 28 to which the electric wire 27 is connected by crimping is press-fitted. A capacitor 29 is provided at the base of the terminal 28.
A hook-shaped protrusion 31 for winding and connecting the lead wire 30 of
Has been formed.

Then, as shown in FIG. 6, a capacitor 29 is sandwiched between the wire crimping portions 32, 32 of the pair of terminals 28, 28 press-fitted into the holding plate 22, and a lead wire (bare wire) of the capacitor 29 is attached. 30 is wound around the projection 31 of the terminal 28 and soldered.
Here, the excess portion 30a of the lead wire 30 is cut.

Further, the holding plate 22 is inserted into the connector housing 33 through the opening 34, the terminal 28 is projected from the intermediate opening 37, and as shown in FIG. The agent 35 is injected, filled and cured to fix the terminal 28 and the capacitor 29.

However, in the conventional connector with a built-in capacitor, the terminal 28 is press-fitted into the holding plate 22 and the capacitor 29
Mounting, winding and soldering of the lead wire 30 around the terminal 28, cutting of the extra portion 30a and insertion of the holding plate 22 into the connector housing 33 must all be done manually, resulting in poor productivity. was there. Further, the resin molding agent 35 leaks out from the gap 36 between the holding plate 22 and the connector housing 33, and the electric contact portion 28 of the terminal 28 is
There was also a problem that it would stick to a and would not be able to be successfully connected to the mating connector (not shown).

[Problems to be Solved by the Invention]

In view of the above points, an object of the present invention is to provide a connector with a built-in capacitor that enables automatic assembly and prevents leakage of a resin molding agent.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a connector housing having a terminal insertion hole on one side and an opening on the other side with a guide groove into which a capacitor holding plate can be slidably fitted through the opening. The plate surface is provided with an engaging portion for the capacitor and a fitting portion for a connecting terminal having an electric contact portion at one end and an electric wire connecting portion at the other end, and the connecting terminal has a mounting portion for the lead wire of the capacitor. The structure is constructed by erection.

[Action]

When assembling the connector with a built-in capacitor, the capacitor and the connection terminal are assembled in the vertical direction (longitudinal direction) with respect to the plate surface of the capacitor holding plate. Here, the capacitor is engaged and fixed to the locking portion, and the connection terminal is fitted into the fitting portion to bring the mounting portion into contact with the lead wire of the capacitor. Then, the capacitor holding plate is slidably fitted from the opening of the connector housing by the guide groove. These series of operations can be performed by an automatic machine.

〔Example〕

FIG. 1 is an exploded perspective view showing a connector with a built-in capacitor according to the present invention.

In the figure, 1 is a connector housing, 2 is a capacitor holding plate, 3 is a capacitor, 4 is a connection terminal, and the housing chamber inner wall surface 5 of the connector housing 1 is formed on both sides of the capacitor holding plate 2. The pair of guide grooves 7, 7 for the projected ridges 6, 6 are formed in the opening 8 of the connector housing 1.
To the opposing partition wall 9, and a pair of terminal insertion holes 10, 10 are formed in the partition wall 9 to form the terminal insertion hole 10
A projecting peripheral portion 11 is formed at the entrance of the.

In addition, as shown in FIG. 2, on the upper surface of the capacitor holding plate 2, three flexible locking pieces are arranged in the longitudinal direction in the longitudinal direction.
12,12,12 are erected, and a pair of positioning pieces 13,13 are erected so as to face each other on both sides of the upper surface. The flexible locking piece 12
An engaging claw 14 having an upward inclined surface 14a is formed on the upper part of the. Further, in the longitudinal direction of the lower surface of the capacitor holding plate 2, the housing groove 15, which serves as a fitting portion for the connection terminals 4, 4,
15 is formed, and a vertical wall 16 is provided upright on the front upper surface of the capacitor holding plate 2, and a connection terminal to be described later is provided on the vertical wall 16.
Fitting grooves 18, 18 for the positioning protrusions 17b, 17b of 4, 4 are formed.

The connection terminal 4 has a tab-shaped electric contact portion 4b at the tip of the substrate 4a,
Electric wire crimping portions 4c are formed at the rear ends thereof, respectively, and a projection 17 for connecting to the lead wire 19 of the capacitor 3 and a positioning projection 17b for the fitting groove 18 are provided upright at the intermediate portion of the substrate 4a. V groove 17 for mounting the lead wire on the tip of the connection protrusion 17
The electric wire 20 is connected to the electric wire crimping portion 4c.

Then, by fitting the connection terminal 4 into the accommodating groove 15 of the capacitor holding plate 2 from below, as shown in FIG. 3, the V groove portion 17a of the lead wire connecting projection 17 is suspended from the capacitor holding plate 2. It projects above the wall 16. Further, the capacitor 3 is fitted and locked to the flexible locking piece 12 of the capacitor holding plate 2 from above. Here, a pair of lead wires 19 and 19 are provided at the tip of the capacitor 3 so as to project in a preset shape, and the lead wires 19 and 19 of the capacitor 3 located at a predetermined position by the positioning piece 13 are The connection terminals 4, 4 are mounted on the V-shaped grooves 17a, 17a of the connection projections 17, 17 (see FIG. 1). Then, the lead wire 19 and the connection projection 17 are soldered. Since the assembling of the connection terminal 4 and the capacitor 3 with respect to the capacitor holding plate 2 and the soldering of the lead wire 19 are carried out by the behavior in the vertical direction, they can be performed using an automatic machine.

Then, by slidingly fitting the protrusions 6, 6 of the capacitor holding plate 2 into the guide grooves 7, 7 of the connector housing 1, the electric contact portions 4b, 4b of the connection terminals 4, 4 are inserted into the terminal insertion holes 10, 1.
Pressed into 0. This operation can also be performed using an automatic machine. As shown in the longitudinal sectional view of the completed state in FIG. 4, the terminal insertion hole 10 is completely sealed by abutting the front end face 21 of the capacitor holding plate 2 on the projecting peripheral edge portion 11, and
Since the partition wall 9 of the connector housing 1 is formed integrally with the connector housing 1 and has no gap (36 in FIG. 7) with the holding plate as in the conventional case, the fluid resin molding agent 23 is injected. The resin molding agent 23 does not leak during the process. Furthermore, the rear end surface of the capacitor holding plate 2
By visually confirming the position of 24, it is possible to check whether the connection terminal 4 has been completely inserted. In FIG. 4, 3 is a capacitor, 12 is a flexible locking piece, 19 is a lead wire, 17 is a connection projection of the connection terminal 4, and 25 is a solder connection portion.

〔The invention's effect〕

As described above, according to the present invention, the capacitor and the connection terminal can be assembled from the vertical direction (longitudinal orthogonal direction) with respect to the plate surface of the capacitor holding plate, and the capacitor holding plate can be inserted from the opening of the connector housing. By slidingly fitting the guide groove, the connection terminal can be press-fitted into the terminal insertion hole. Since these operations can be performed by an automatic machine, productivity can be improved. Further, since there is no gap between the holding plate and the connector housing as in the conventional case, the resin molding agent does not leak out, and the connection failure caused by the resin molding agent adhering to the connection terminals can be eliminated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view showing an embodiment of the present invention, FIGS. 2 to 3 are exploded perspective views showing an assembling process thereof, and FIG. 4 is a vertical section showing a completed state thereof. FIGS. 5 to 6 are exploded perspective views showing a conventional example in the order of the assembling process, and FIG. 7 is a transverse sectional view of the same. 1 ... Connector housing, 2 ... Capacitor holding plate, 3 ...
Capacitor, 4 ... Connection terminal, 7 ... Guide groove, 8 ... Opening portion, 10 ... Terminal insertion hole, 12 ... Flexible locking piece, 15 ... Housing groove, 17
b… Positioning protrusion, 18… Mating groove, 19… Lead wire.

Claims (1)

[Claims] 1. A connector housing having a terminal insertion hole on one side and an opening on the other side is provided with a guide groove into which a capacitor holding plate can be slidably fitted through the opening, and a plate surface of the capacitor holding plate is provided for engagement with the capacitor. And a fitting portion for a connection terminal having an electric contact portion at one end and an electric wire connection portion at the other end, and the mounting portion for the lead wire of the capacitor is provided upright on the connection terminal. A connector with a built-in capacitor.