JPS6042467Y2 - electrical connector - Google Patents

Description

[Detailed description of the invention] The present invention connects a printed circuit board disposed on one side of an electrically insulating board such as a meter case, and an electrical device such as a meter unit disposed on the other side via male terminals. This relates to electrical connectors that are used for connection.

As shown in FIGS. 1 and 2, the conventional electrical connector 1 has two opposite sides of a rectangular bottom plate 1a standing upright to form both side plates 1b and lb.

Furthermore, the upper portions of the side plates 1b, lb are bent inward to form folded portions 1c, lc to be connected to the male terminals 4.

The folded parts 1c, lc open toward the upper end, and the male terminal 4
Form a guide surface on both sides of the lower end of one folded part 1c.
The protruding plates 1h and 1h are bent into a letter shape.

The lower end of the other folded portion 1c is held between the protruding plates 1h and lh with an appropriate clearance.

Above the above-mentioned side plates 1b, lb, there are cut and raised retaining pieces If, parallel to the bottom plate 1a, which engage with the periphery of the through hole 3a of the insulating substrate 3, on which the flexible printed circuit board 2 is disposed on the back side. and extends outward.

Further, below the side plates 1b, lb, there are cut and raised engaging pieces If, which are arranged at a certain distance downward from the side plate 1b.
, lb is bent from both side edges, and the insulating substrate 3
Wide overhanging plates 1g, 1g that are locked to the periphery of the through hole 3a
Further, contact plates 1d and ld extend diagonally outward from the remaining two opposing sides of the bottom plate 1a and contact the circuit exposed portion 2c of the flexible printed circuit board 2 held on the substrate 3. A contact portion 1e, le for contacting the printed circuit board 2 is formed at each tip.

Then, when attaching this electrical connector 1 to the insulating board 3,
The overhanging board 1g is rotated while pressing against the flexible printed circuit board 2, but if this pushing force is excessive,
This overhanging plate 1g becomes unable to withstand its own strength, deforms as a result, and furthermore becomes unable to be repeatedly attached and detached.

Further, there was also a problem in that the surface of the flexible printed circuit board 2 was damaged by pressing the overhanging board 1g against the flexible printed circuit board 2 excessively.

Furthermore, since the conventional electrical connector 1 does not have an insulating cover, when this electrical connector 1 is used in a place with limited space such as a vehicle instrument panel, this electrical connector may short-circuit with wiring, etc. However, there were also problems such as disconnection of printed circuit patterns.

In order to solve this problem, the present invention proposes an electrical connector equipped with an insulating cover, which is robust against excessive pressure on the printed circuit board and has reliable contact with the printed circuit. It is an object of the present invention to provide an electrical connector which is highly efficient, prevents damage to its printed circuit, and is free from the risk of short circuits.

The present invention will be explained in detail below based on the embodiments shown in FIGS. 3 to 7.

First, the structure of the electric connector A will be described. Reference numeral 7 denotes a connector body, and the connector body 7 is raised from two opposing sides of a rectangular bottom plate 7a to form both side plates 7b, 7b.

Further, the upper portions of the side plates 7b, 7b are bent inward to form folded portions 7c, 7c to be connected to the male terminals 4.

This folded part 7C97C is a male terminal 4 that opens toward the upper end.
It is formed on the guide surface.

Above the above-mentioned side plates 7b and 7b are through holes 3a of the insulating substrate 3.
The cut-out engagement pieces 7d, which can pass through the notches 3b, 3b provided in the insulating substrate 3 and come into contact with the edge upper surface 3c of the through hole 3a of the insulating substrate 3, are arranged parallel to the bottom plate 7a and outside. It is extending towards the other side.

Further, a contact plate 7et7e is provided which extends upward and diagonally outward from the remaining two opposing sides of the bottom plate 7a and contacts the circuit exposed portion 2c of the printed circuit board 2 held on the substrate 3, and the contact plate 7e, Is there a contact part with the printed circuit board 2 at the tip of 7e? f,? f is formed.

Furthermore, a locking claw 7g for fitting an insulating cover 8, which will be described later, is formed on the base edges of the side plates 7b.

2a is a through hole formed in the printed circuit board 2 and aligned with the through hole 3a.

The above is the structure of the connector body 7. Next, we will discuss the insulating cover 8 that should be attached to the connector body 7.
This insulating cover 8 has a recess 8a in which the bottom plate 7a of the connector main body 7 is housed, a pair of edges 8b formed above the recess 8a, and a position lower than the pair of edges 8b. A contact plate receiving portion 8c located below the contact plate 7e is integrally formed, and when the bottom plate 7a of the connector main body 7 is placed in the recess 8a, the connector main body 7 The fitting engagement claw 7g formed in is engaged with the insulating cover 8, so that the connector main body 7 and the insulating cover 8 are integrally coupled.

A fan-shaped guide wall 3d is formed on the substrate 3 along the periphery of the through hole 3a, and a stopper 3e for regulating the rotation of the connector is formed next to the guide wall 3d.

Next, when using the electric connector A in which the connector body 7 and the insulating cover 8 having the above shape are integrally combined, the cut and raised retaining piece 7d of the connector body 7 is connected to the printed circuit board 2 and the insulating board. 3, and the contact portion 7f at the tip of the contact plate 7e is brought into contact with the exposed portion 2c of the printed circuit board 2.

When the electrical connector is subsequently inserted, the contact plate 7e is elastically deformed and inserted, and the edge 8b of the insulating cover 8 comes into contact with the lower surface of the printed circuit board 2.

At this time, the lower surface of the retaining piece 7d is located above the upper surface 3c of the insulating substrate 3.

In this state, the electric connector A is brought into contact with the upper surface of the edge 8b of the insulating cover 8 to the lower surface of the printed circuit board 2, and the contact portion 7f provided on the contact plate 7e is connected to the exposed portion 2c of the printed circuit board 2. When the engaging piece 7d rotates while being pressed against the stopper 3e, the installation of the electric connector A is completed.

Next, when the male terminal 4 is inserted into the double-folded portion 7c of the electrical connector A fixed to the insulating substrate 3, the electrical connector A and the male terminal 4 are connected.

As described above, the electrical connector A of the present invention, which is connected to the printed circuit board 2 attached to the back side of the insulating substrate, is inserted into the through hole 2a provided in the printed circuit board 2 from one side and then inserted from the other side. A female connector connected to a male terminal 4 disposed in a rectangular bottom plate 7a1, which has two side plates with one end extending at right angles to each other on opposite sides of the bottom plate 7a and extending upward from each other. 7b1 and the remaining opposite opposite side edges of the bottom plate 7a, two contact plates 7e are provided, one end of which extends diagonally outward from the other, and which contacts the circuit exposed portion 2c of the printed circuit board 2. The upper end portions of the both side plates 7b are folded inwardly and diagonally downward to form a double folded part 7C which connects to the male terminal 4. an engaging piece 7d that protrudes from and engages the other side of the printed circuit board 2 to form a contact body 7;
When the insulating cover 8 is fixed to the outside of the bottom plate 7a of the contact body 7 and the side plate 7b is inserted into the through hole 2a,
Since the edge 8b of the insulating cover 8 is formed so as to come into contact with the printed circuit board and restrict the insertion of the side plate 7b, the insulating cover provided on the connector body 7 may cause an accidental short circuit. It is possible to provide an electrical connector with no danger and a high degree of electrical safety.

Further, the contact plate 7e that comes into contact with the printed circuit has a contact plate receiving portion 8c that can prevent excessive deformation of the contact plate.
Since the connector main body 7 is provided nearby, damage to the connector main body 7 can be prevented, and an electrical connector with high reliability and good productivity can be provided.

[Brief Description of the Drawings] Figures 1 and 2 are perspective views of conventional electrical connectors and cross-sectional views showing how they are used, and Figure 3 is how the electrical connector of the present invention is used. Fig. 4 is a perspective view showing the electrical connector and insulating board, Fig. 5 is a plan view of only the electrical connector, and Fig. 6 is a cross-sectional view of only the insulating cover. Side view, Figure 7 shows ■-■ in Figure 5.
FIG. 2...Printed circuit board, 2a...Through hole, 2c...Circuit exposure part, 3...Insulating board, 3a...Through Hole, 3b...notch,
3c... upper surface part, 3d... guide wall,
3e... Stopper, 4... Male terminal, A
...Electrical connector, 7...Connector body,
7a...Bottom plate, 7b...Side plate, 7c...
...Folded part, 7d...Engagement piece, 7e...
...Contact plate, 7f...Contact part, 7g...
...Latching claw, tail...Insulation cover, 8a...
...Recess, 8b...edge, 8c...contact plate receiving part.

Claims (1)

[Claims for Utility Model Registration] A rectangular bottom plate which is a connector inserted into a through hole 2a provided in a printed circuit board 2 from one side and connected to a male terminal 4 arranged on the other side. 7a. Two side plates 7b have one end connected at right angles to opposite side edges of the bottom plate 7a and extend upward from each other, and one end edge connects to the remaining opposite side edges of the bottom plate 7a. Two contact plates 7e are provided that extend diagonally upward and outward and come into contact with the circuit exposed portion 2c of the printed circuit board 2, and the upper ends of the side plates 7b are folded inward and diagonally downward, respectively. A double folding part 7c is formed to connect with the male terminal 4, and a retaining piece 7d is provided in the middle part parallel to the bottom plate 7a and protrudes outward from each other to engage with the other side of the printed circuit board. is provided to form the contact body 7, an insulating cover 8 is fixed to the outside of the bottom plate 7a of the contact body 7, and when the side plate 7b is inserted into the through hole 2a, the insulating cover 8
The edge 8b of is in contact with the printed circuit board 2, and the side plate 7
An electrical connector characterized in that it is configured to restrict insertion of b.