JPH0749747Y2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a bottom entry type connector used for connecting boards, for example.

(Prior Art) The present inventor has previously developed a bottom entry type connector for connecting a substrate O and a substrate P as shown in FIG.
In this connector, contacts C are inserted into a large number of insertion holes B provided in the body A, respectively.

To insert the contacts C into the body A, as shown in FIG. 4, a large number of contacts C connected by the carriers D are inserted halfway into the insertion holes B, and the carriers D are cut by a cutting jig in the middle thereof. After that, as shown in FIG. 5B, the cutting surface F was pushed by the pushing jig E and was inserted into the insertion hole B as far as it could go.

However, in this case, since the pressing surface G of the pressing jig E is a flat surface and a plurality of contacts C are simultaneously pressed by one pressing jig E, the pressing surface G is the upper surface of the partition wall H of the body A ( End face on contact side) I
I could only push it until I hit. Therefore, if the dimensions of the cut surface F of the contact C and the pushing amount of the pushing jig E vary, the contact C is not completely inserted into the insertion hole B, and the cut surface F projects above the upper surface I of the partition wall H. There was something to do.

For this reason, as shown in FIG. 5 (c), burrs J are generated when the carrier is cut on the cut surface F of the contact C, or plating scraps K etc. applied to the contact C are attached. However, there is a problem that adjacent contacts C contact with each other and are short-circuited when energized.

Therefore, conventionally, a method has been developed in which the contact C is pushed in by using a comb-teeth-shaped pushing jig L as shown in FIG.
The pushing jig L is provided with a recess N in a portion of the pushing surface M that contacts the contact pushing side end surface I of the partition wall H of the body A when pushing. In this pressing jig L, the pressing surface M does not contact the contact pressing side end surface I of the partition wall H because the concave portion N is provided at the time of pressing, and the contact C is surely pressed to the inside of the contact pressing side end surface I of the partition wall H. There was an advantage.

(Problems of Prior Art) However, the pressing method using the comb-teeth pressing jig L has the following problems.

． Since the structure of the pressing jig L is complicated, the manufacturing of the jig L is troublesome and the manufacturing cost is high.

． Since some connectors have different numbers of contacts C and intervals of the insertion holes B, several kinds of pushing jigs having different numbers and intervals of the comb teeth or sizes and intervals of the recesses N according to the size of the connector. L is required. Moreover, since the pushing jigs L must be replaced according to the type of connector, the workability was poor.

． Depending on the connector, the comb-teeth-shaped pushing jig L may not be used, which limits the application.

(Object of the Invention) The object of the present invention is to partition the contact between the contacts so that the contacts in the adjacent insertion holes do not short-circuit with each other even when the contacts are pushed into the insertion hole of the housing by a pressing jig having a flat pressing surface. An object is to provide a connector that can be pushed in.

In the connector in which the contacts 4 shown in FIG. 1A are mounted in the insertion holes 3 formed in large numbers, respectively, in the contact pressing side wall surface 20 of the partition wall 2, the contact pressing side of the insertion holes 3 is formed. As shown in FIGS. 2A to 2C, the pressing surface 9 of the contact 4 is projected to the outside of the end surface 30 and the flat pressing surface 8 of the pressing jig 6 reaches the contact pressing side end surface 30 of the insertion hole 3. When it is pushed in, it is crushed, and when the pushing is released, it returns by elasticity, and the contact 4 mounted in the adjacent insertion hole 3
The crushed portion 7 is formed so as to rise to the outside of the pressing surface 9.

(Function) The connector of the present invention has the end face 20 on the contact pressing side of the bulkhead 2.
The crushed portion 7 protruding outward from the contact pressing side end surface 30 of the insertion hole 3 of the body 1 is provided on the crushed portion 7.
When the pressing surface 9 of the contact 4 is pressed to the contact pressing side end surface 30 of the insertion hole 3 by the planar pressing surface 8 of the pressing jig 6, the pressing surface 9 is crushed by the jig 6 and the pressing is released. And the insertion hole 3 that returns by elasticity and is adjacent
Since the contact 4 is raised to the outside of the pressing surface 9 of the contact 4 mounted inside, the contact 4 connected by the carrier is pushed into the insertion hole 3 of the body 1,
The carrier is cut in the middle of pushing, and the pushing surface 9 is pushed by the flat pushing surface 8 of the pushing jig 6 as shown in FIGS. 2 (a) and 2 (b), and the contact 4 as shown in FIG. 2 (c). Is pressed until its pressing surface 9 is at the same height as the upper surface (top portion) 10 of the crushed portion 7, and when it is further pressed, the crushed portion 7 is crushed by the pushing jig 6 and spreads laterally. afterwards,
When the pushing by the pushing jig 6 is released, the crushed portion 7 which has been crushed and elastically deformed is slightly returned upward (recovered to some extent) and rises as shown in FIG. 2D. in this case,
The crushed portion 7 rises to the outside of the pressing surface 9 of the contact 4 mounted in the adjacent insertion hole 3 to define a space between the pressing surfaces 9 of the adjacent contacts 4, and the pressing surface 9 has burrs or plating. Even if dust is attached, they do not contact each other.

(Embodiment) An embodiment of the connector of the present invention will be described in detail with reference to the drawings.

Reference numeral 4 in FIGS. 1 (b) and 2 (a) to (c) is a contact, on which a plug-in terminal 11 is formed, which is press-fitted into the body 1 at its tip (upper) and locked. The elastic imparting portion is formed with the engaging portion 12 and is bent in an S shape at the tip (upward) thereof.
13 is formed, and a contact portion 14 is formed at the tip of the elasticity imparting portion 13.

Reference numerals 15 and 16 in FIG. 1 (b) are contact pressing portions,
These are formed parallel to each other on both sides in the width direction of the first folded portion 17 of the contact 4, and are formed in a rectangular rod shape. Before being pushed into the insertion hole 3 of the body 1, the contact 4 is connected by a carrier similarly to the contact shown in FIG. 4, and is pushed halfway into the insertion hole 3 and then cut from the carrier. The pressing surface 9 is formed on the cut surface. The pressing surface 9 is pressed by the flat pressing surface 8 of the pressing jig 6 so that the contact 4 is pressed into the insertion hole 3 (FIG. 1a) of the body 1.

1 of FIGS. 1 (a), 2 (a), (b), and (c) is a resin body, in which a large number of insertion holes 3 are formed in the partition wall 2.
And is formed in a line.

Reference numeral 7 in FIG. 1 (a) denotes a crushed portion, which is formed on the contact pressing side end surface 20 of the partition wall 2 of the body 1 so as to project outside the contact pressing side end surface 30 of the insertion hole 3 and the partition wall 2. It is integrally formed and protrudes. When the contact surface 4 of the contact 4 is pressed by the flat pressing surface 8 of the pressing jig 6 to the contact pressing side end surface 30 of the insertion hole 3, the crushed portion 7 is pressed into the contact 4 when the contact 4 is inserted into the insertion hole 3. It is crushed by the jig 6 and spreads laterally, and when the pushing by the pushing jig 6 is released, it is slightly restored upward due to the elasticity of the resin and rises upward. At this time, the contact 4 is bulged to the outside of the pressing surface 9 of the contact 4 pressed into the adjacent insertion hole 3 to partition the adjacent pressing surfaces 9. The shape of the crushed portion 7 in FIG. 1 (a) is formed into a triangular mountain shape that is sharpened toward the outside. The shape of the crushed portion 7 may be any shape other than the illustrated shape as long as it is crushed by the pushing jig 6 and rises. The crushed portion 7 is formed of a thermoplastic material,
It may be heated by the pushing jig 6 at the time of pushing and softened to be crushed.

(Effect of the Invention) The connector of the present invention has the following effects.

． When the crushed portion 7 is crushed and then the pushing is released, the crushed portion 7 is restored to some extent and rises up to the outside of the pressing surface 9 of the contact 4 pushed into the adjacent insertion hole 3, so that the pressing force of the adjacent contact 4 is exerted. There is no danger of electrical shorts between the faces 9.

． Since the pressing surface 9 of the contact 4 is pressed by the pressing jig 6 whose pressing surface 8 is a flat surface, and the contact 4 is pressed into the insertion hole 3 while pressing the crushing portion 7, the contact 4
Even if the length of the contact 4 and the amount of pressing of the pressing jig 6 vary, the pressing surface 9 of the contact 4 does not protrude above the swell of the crushed portion 7 after restoration, and is pressed into the adjacent insertion hole 3. There is no risk of short-circuiting between the pressing surfaces 9 of the contact 4 that has been formed.

． Since the pressing jig 6 having a flat pressing surface 8 is used, it is not necessary to prepare a comb-shaped pressing jig which is troublesome to manufacture, or to prepare various pressing jigs according to the type of the connector. It has good workability and is economical.

[Brief description of drawings]

FIG. 1 shows an embodiment of the connector of the present invention. FIG. 1 (a) is a perspective view of a body, FIG. 1 (b) is a perspective view of a contact, and FIG. 2 (a) is a contact insert of the connector. FIG. 7B is a cross-sectional view when the contacts of the connector are mounted, FIG. 7C is a cross-sectional view taken along line ZZ of FIG. 7B, and FIG. FIG. 3 is a cross-sectional view showing a state in which the crushed portion is restored to a slightly elevated state, FIG. 3 is a perspective view of a conventional connector when a contact is attached, FIG. 4 is an explanatory view of connecting a contact to a carrier, and FIG. FIG. 6B is a cross-sectional view of a conventional connector when a contact is inserted, FIG. 6B is a cross-sectional view of the same connector when a contact is mounted, and FIG. 6C is a cross-sectional view taken along line YY of FIG. The figure is a cross-sectional view when the pushing jig of the connector is comb-shaped. 1 is a body 2 is a partition wall 3 is an insertion hole 4 is a contact 5 is an inclined wall 6 is a pushing jig 7 is a crushed portion 15 and 16 is a pushed portion

Claims (1)

[Scope of utility model registration request] 1. A connector in which a contact (4) is mounted in each of a large number of insertion holes (3) formed by partitioning a body (1) by a partition (2), wherein the partition (2). On the contact pushing-side end surface (20) of the contact hole (3) protruding outward from the contact pushing-side end surface (30) of the insertion hole (3), and the pressing surface (9) of the contact (4) is flat on the pressing jig (6). When it is pushed to the contact pushing side end surface (30) of the insertion hole (3) by the pushing surface (8), it is crushed, and when the pushing is released, it returns by elasticity and is mounted in the adjacent insertion hole (3). A connector characterized in that a crushed portion (7) is formed which rises to the outside of the pressing surface (9) of the contact (4) being formed.