JP2001126790A - Electrical connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an edge-type electrical connector having an edge designed for stably holding a circuit board having a plurality of connections. SOLUTION: A connector body 310 has an end structure for mounting a portion 410 arranged with a contact pattern 420 of a circuit board 400, shaped as the section of a channel. The channel-shaped connector body has two erected sections 320, 320, which have the inner sides facing each other provided with respective slots 330, 330 having cushioning protuberances for resiliently holding the circuit board 400. The base portion of the connector body has a plurality of contacts 340 connecting with the circuit board. The two edge portions 411, 411 arranged at both sides of the end portion of the circuit board 400 are inserted the respective slots 330, 330, so that the contact pattern 420 connects electrically with the contacts 340. As a result, not only the connector body side but also the structure on of the board side can be simplified.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an edge-type electrical connector whose edge portion is adapted to stably hold a substrate having a large number of contacts.

[0002]

2. Description of the Related Art In an edge-type electrical connector, a mounting portion for a substrate is provided at one end of a connector body usually formed in a rod-like block shape, and a substrate having a large number of pattern contact portions arranged at the edge is mounted on this portion. Thus, a structure in which a mating portion for a mating connector is provided on the other end side of the connector body while electrical connection is being proposed.

FIG. 5 shows an example of such a structure.
7, an electrical connector 100 as shown in FIG. 7 (Japanese Patent Application No. 10-124909). That is, in the electrical connector 100, a plurality of board mounting portions 120,
130, and a large number of pattern contact portions 2 at the edge portion 210.
The substrate 200 on which the 20 are arrayed is mounted, and a large number of pattern contact portions 220 are brought into contact with a corresponding large number of substrate contacts 140 of the connector main body 110 to be electrically connected thereto, while the other end of the connector main body 110 is connected. On the side, a mating connector joint (not shown) is provided.

The board mounting portions 120 are formed on both ends of the connector main body 110. More specifically, as shown in FIG. 6, the upper plate 123 is formed through a predetermined slit 122 with respect to a bottom plate 121. Provided, and the slit 122
The edge 210 of the substrate 200 is inserted into the portion.

On the other hand, the mounting portion 130 for a board is formed at an intermediate portion in the longitudinal direction of the connector main body 110, and more specifically, as shown in FIG. A slit-shaped notch 230 provided in the middle of the edge portion 210 of the substrate 200 is fitted into the slit grooves 132 and 132.

Therefore, if the board 200 is simply fitted, the board 20 is positioned in a fitting relationship between the slit groove 132 and the slit-shaped notch 230.
0 is mounted on the connector body 110 side.

[0007]

However, in the case of the electric connector 100, first, since the structure of the connector body 110 side is quite complicated, it is difficult to reduce the manufacturing cost. In addition, it is necessary to provide the slit-shaped notch 230 on the substrate 200 side, and there is a problem in that it is difficult to reduce the manufacturing cost.

In particular, since the board 200 is basically simply inserted into the board mounting section 120, the board 200 is prevented from rising in the vertical direction, but is restricted in the width direction of the board 200. There is almost no effect, and the restriction in the width direction is, as described above, at least two slits 13 opposed to each other between at least two substrate mounting portions 130, 130.
2, 132 and a slit-shaped notch 230 of the substrate 200
In this configuration, two or more board mounting parts 130 that are structurally troublesome are required, and two or more notches 230 on the board 200 side are correspondingly required. From this point, it is difficult to reduce the manufacturing cost.

[0009] The present invention has been made in view of such a conventional problem.
An object of the present invention is to provide an edge-type electrical connector that requires a simple structure on the substrate side.

[0010]

According to a first aspect of the present invention, there is provided an electrical connector wherein an edge portion on which a plurality of pattern contact portions of a substrate are arranged is mounted on one end side of the connector body. Is formed in a substantially U-shape, and at the same time, a slot groove is provided inside the upright portions at both ends of the U-shape opposite to each other, and the substrate is elastically pressed at an appropriate position in the slot groove. A cushion projection is provided, and a number of substrate contacts are arranged on the bottom surface of the U-shape, and both edge sides of the edge of the substrate are fitted into the two slot grooves and mounted, while the substrate side is mounted. The electrical connector is characterized in that the plurality of pattern contact portions are brought into contact with the substrate contacts of the connector body to be electrically connected.

[0011]

1 to 4 show an embodiment of an electric connector according to the present invention. In the drawings, reference numeral 300 denotes an electric connector of the present invention, 310 denotes a connector main body thereof, and 40 denotes a connector main body.
Reference numeral 0 denotes a substrate mounted on the connector main body 310, and pattern contact portions composed of a large number of metal foil layers, solder layers, and the like are arranged at an edge portion 410 thereof.

The connector body 310 is generally made of an insulating material such as synthetic resin, and has one end 310a formed in a substantially U-shape, and the upright portions 320, 320 at both ends of the U-shape are opposed to each other. Slot grooves 330, 3 inside
A plurality of substrate contacts 340 including a large number of metal pins (a small metal piece is also possible) are arranged on the U-shaped bottom side (the front side in FIG. 1).

On the other hand, the other end 310 of the connector body 310
As shown in FIG. 3, one or a plurality of connector openings (insertion portions) 350 for the mating connector are formed in b. Metal pins () communicated with the board contacts 340 are formed therein. A large number of connector contacts 341 made of small metal pieces are also arranged. For example, in FIG. 3, the upper right contact is used for a signal, and the lower left contact is used for a power source, for example, so as to be connected to an external mating connector.

As shown in FIG. 4, a hemispherical (a mountain-shaped slope shape or the like) cushion projection for elastically pressing the inserted substrate 400 is provided at an appropriate position in the slot groove 330 as shown in FIG. 331 and 332 are provided.
Among these, the cushion projection 331 presses the upper and lower surfaces (the lower surface in FIG. 4) of the substrate 400 to regulate the upward and downward lifting, and the cushion projection 332 is an edge end surface of the substrate 400 (FIG. 4). Then, the right end surface is pressed to restrict the movement in the width direction.

Of course, due to these restrictions in the vertical and width directions, the board contacts 340 of the connector body 310 and the pattern contact portions 420 of the board 400 will be described later.
Are automatically positioned, so that they are stably and electrically connected without displacement.

Therefore, in the cushion projections 331 and 332 having such an action, the slot grooves 3
30 may be provided in the depth direction (depth direction), and the invention is not limited to the illustrated example. One side (in FIG. 4, the cushion projection 331 is below the slot groove, and the cushion projection 332 is It is also possible to provide them not only on the right side slot groove) but also on both sides. These may be configured separately from the connector body 310 (for example, may be formed of a protrusion member that can be elastically moved up and down by a spring or the like), but are integrally formed when the connector body 310 is formed. It is also possible. As a result, simple manufacturing and cost reduction can be realized.

In the electrical connector 300 according to the present invention having the above-described structure, the two supporting portions 32 of the connector
The width between the opposing slot grooves 330, 330 of the substrate 400 is exactly the same as the width of the side edge 4 of the edge portion 410 of the substrate 400.
11 and 411, the edge portion 410 of the substrate 400 is inserted between these slot grooves 330 and 330 and is press-fitted.
00 is easily attached to the connector body 310. Of course, by this mounting, the board contacts 340 of the connector body 310 and the pattern contact portions 420 of the board 400 are automatically and stably electrically connected without displacement.

At this time, if the dimensional accuracy of the width between the slot grooves 330, 330 and the dimensional accuracy of both the edge portions 411, 411 of the edge portion 410 of the substrate 400 are increased, stable mounting of the substrate 400 can be achieved. can get. Also, as shown in FIG.
When the cushion projections 331 and 332 are provided only on one side, there is an advantage that a surface without these projections becomes a reference surface that is slid on the substrate 400. further,
When these cushion projections 331 and 332 are provided, an advantage is obtained that the elasticity of the cushion projections 331 and 332 enables the substrate 400 to be stably held for a long period of time without rattling.
Furthermore, also from the manufacturing point of view, by forming the projections,
Since the allowable range of the dimensional accuracy is somewhat relaxed (increased), there is an advantage that the molding operation of the connector body 310 and the substrate 400 can be easily performed.

In the above-described embodiment, the notches 412 are provided on both edges 411 and 411 of the edge portion 410 of the substrate 400 to provide a kind of positioning function between the slot grooves 330 and 330 facing each other. However, in the case of the present invention, this can be omitted. At this time, both edge portions 411 and 411 of the substrate 400 may be simply straight edges, and there is an advantage that the substrate can be easily manufactured.

[0020]

As is apparent from the above description, according to the present invention, one end side of the connector body is formed in a substantially U-shape, and a slot is formed inside the opposed portions of the upright portions at both ends of the U-shape. In addition to providing a groove, a cushion projection for elastically pressing the substrate is provided at an appropriate position in the slot groove, and a number of substrate contacts are arranged on the bottom surface of the U-shape, and the edge of the substrate is provided. Since both edge portions of the portion are fitted into the two slot grooves and mounted, it is possible to provide an excellent edge-type electrical connector that can simplify the structure of the substrate as well as the connector body.

That is, in the electric connector of the present invention, FIG.
It is not necessary to provide at least two mounting parts for a board and a corresponding slit-shaped notch on the board corresponding to this, which is a rather troublesome structure at one end side of the connector main body as in the conventional electric connector shown in FIG. In addition, the manufacturing cost can be reduced.

Further, since a cushion projection for elastically pressing the substrate is provided at an appropriate position in the slot groove, the elasticity enables the substrate to be stably held for a long period of time. In addition, by this cushion projection,
Since the board contacts of the connector body and the pattern contact portions of the board are automatically positioned, stable electrical connection can be obtained without displacement. Further, the elastic action of the cushion projection makes it possible to relax the allowable range of the dimensional accuracy, so that the connector main body and the substrate can be easily formed, and the manufacturing cost can be reduced from this aspect.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an embodiment of an electrical connector according to the present invention and a part of a board before mounting.

FIG. 2 is a perspective view showing a mounting state of the electric connector and the board of FIG. 1;

FIG. 3 is a perspective view from the direction A showing a mounting state of the electric connector and the board of FIG. 2;

FIG. 4 is a partial vertical sectional side view showing a mounting state of the electric connector and the board of FIG. 1;

FIG. 5 is a perspective view showing a mounting state of a conventional electrical connector and a board.

FIG. 6 is a partially enlarged perspective view showing a mounted state of the electric connector and the board of FIG. 5;

FIG. 7 is a partially enlarged perspective view showing a state before mounting the electric connector and the board of FIG. 5;

[Explanation of symbols]

 Reference Signs List 300 electrical connector 310 connector main body 320 standing portion 330 slot groove 331, 332 cushion projection 340 board contact 341 connector contact 400 board 410 edge 420 pattern contact

Claims (1)

[Claims] An electrical connector in which an edge portion on which a plurality of pattern contact portions of a substrate are arranged is mounted on one end side of a connector body, wherein one end side of the connector body is formed in a substantially U-shape. Along with providing a slot groove on the opposite inside of the upright portions at both ends of the U-shape, a cushion projection for elastically pressing the substrate is provided at an appropriate position in the slot groove,
Also, a large number of substrate contacts are arranged on the bottom surface side of the U-shape, and both edge portions of the edge portion of the substrate are fitted into the two slot grooves and mounted, while a large number of pattern contact portions on the substrate side are provided. An electrical connector which is electrically connected to a substrate contact of the connector body.