JPH06176828A - Connector device - Google Patents

Abstract

PURPOSE:To achieve a narrow pitch in accordance with a board side wiring pattern, and downsize a width of a connector device by using the wiring pattern in a flexible printed wiring board as a contact. CONSTITUTION:A spring member 1 integrated with one end of a flexible printed wiring(FPC) board 3 is held by an upper mould member 7 and a lower mould member 8 at a flat surface part only. A ridge part (a) of the member 1 is not held by the members 7, 8, but it is released at a height of a guide pin 2, so another connection member can be inserted from this part. The part (a) has flexibility because the members 7, 8 keeps the ridge part (a) unfixed. A metal shell 10 having an aperture 9 is engaged with the members 7, 8 to shield the FPC board 3 inside. A wiring pattern 5 in the FPC board 3 applied to the member 1 is used as a contact as it is. By forming the contact parts at a narrow pitch, therefore, a connector device can be compact.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector device for inputting and outputting various signals from a board, for example.

[0002]

2. Description of the Related Art Conventionally, a wiring pattern formed on a substrate tends to have a narrower pitch and a higher density. On the other hand, the connector device mounted on the substrate has a limit in narrowing the pitch of the contact portions due to its structure, and improvement is demanded for miniaturization.

A conventional connector device will now be described with reference to FIGS. 2 and 3. 2 is a front view of a conventional connector device, and FIG. 3 is a perspective view of FIG.

As shown in the figure, a conventional connector device 3
0 is a rigid substrate 3 such as a glass epoxy substrate
The metal pin 34 of itself is soldered and mounted on the land 33 of the wiring pattern 32 formed on 1.

This connector device can be connected to various connecting members such as a cable with a connector in which connecting pins are arranged in two rows in the upper and lower rows at a pitch of 1.0 mm and a double-sided FPC board (flexible printed wiring board) 35.

By the way, in the recent wiring pattern forming technology, the wiring pattern 32 is formed on the rigid substrate 31, for example.
It is possible to form a narrow pitch of about 0.1 mm to 0.3 mm, and by densifying the wiring pattern 32, a wide space can be secured as a component mounting space. Needless to say, the wiring pattern of the FPC board 35 can be similarly formed.

On the other hand, the connector device 30 has a structure in which a plurality of metal pins 34 are mechanically arranged in parallel.
Since there are variations in the tip of the, considering this,
About 0.5mm pitch is the limit for narrowing the pin pitch.

Therefore, even if the width of the entire wiring pattern 32 formed on the rigid substrate 31 can be reduced, the connector device 3
0 cannot be downsized, and in general, in the vicinity of the mounting portion of the connector device 30 on the rigid board 31, a method of widening the pitch of the wiring patterns 32 so as to correspond to the pitch between pins of the connector device 30 is adopted. But with this,
If the space on the rigid substrate 31 cannot be effectively used, inconvenience occurs.

[0009]

As described above, in the above-mentioned connector device, there is a limit in narrowing the pitch between pins, and there is a problem that it cannot cope with the narrowing of the pitch of the wiring pattern on the substrate.

The present invention has been made in order to solve such a problem, and an object thereof is to provide a connector device capable of coping with a narrow pitch of a wiring pattern on a substrate.

[0011]

In order to achieve the above-mentioned object, the connector device of the present invention comprises a spring member having a mountain-shaped elastic portion at one end and a mountain-shaped elastic portion of the spring member. The flexible printed wiring board on which a wiring pattern is arranged and fixed to the spring member, and the spring member so as to open the portion of the wiring pattern located in the mountain-shaped elastic portion as an electrical contact portion with the other. And a mold member for sandwiching the same from the front and back.

[0012]

In the present invention, the wiring pattern of the flexible printed wiring board is used for the contacts, and the pitch can be narrowed corresponding to the wiring pattern on the substrate side.

As a result, the width of the connector device can be reduced.

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing the structure of a connector device according to an embodiment of the present invention.

In the figure, reference numeral 1 is a spring member having a mountain-shaped portion a formed at one end. The spring member 1 is formed, for example, by punching out a stainless steel plate so that the outer shape is a square shape. Two notches are formed near both edges of one side of the spring member, and a plate-shaped portion between the notches is formed. Positioning pins 2 are projected in the shape of a mountain and are placed on flat parts on both sides of the mountain.
Are provided respectively. Further, one end of a flexible printed wiring board 3 (hereinafter referred to as an FPC board) is adhesively fixed to the spring member 1. This FPC board 3
Are directly drawn out from, for example, the rigid flex wiring board 4 and the like, and are not connected to this board by soldering. The plurality of wiring patterns 5 formed on the FPC board 3 are arranged in a direction to get over the mountain-shaped portion a of the spring member 1. The positioning of the FPC board 3 is
This is performed by the hole 6 provided in itself and the guide pin 2 of the spring member 1. The plurality of wiring patterns 5 of the FPC board 3 are, for example, 0.1 mm
It is formed in a narrow pitch up to about 0.3 mm pitch. Note that the copper foil is exposed at the pattern portion 5a of the wiring pattern 5 located in the mountain-shaped portion a of the spring member 1, so that the connection can be obtained electrically by contacting the contact point of another conductive member. Has become.

The spring member 1 which is integral with one end of the FPC board 3 is sandwiched by two mold members (upper mold 7 and lower mold 8) from the front and back only in the plane portion thereof. The mountain-shaped portion a of the spring member 1 is not sandwiched between these mold members 7 and 8 and is opened by the width of the height of the guide pin 2, and another connecting member can be inserted from this portion. Since the mold members 7 and 8 do not fix the mountain portion a of the spring member 1, the mountain portion a has elasticity. A metal shell 10 having an opening 9 is fitted into the mold members 7 and 8, and the FPC board 3 inside the metal shell 10 is fitted therein.
It is designed to shield.

In the case of this connector device, the spring member 1 has F
When the PC board 3 is attached, the spring member 1 and the FPC board 3 are positioned by the holes 6 provided in the FPC board 3 and the guide pins 2 of the spring member 1 in order to obtain positional accuracy.

The FP attached to the spring member 1
Since the wiring pattern 5 of the C plate 3 is used as it is as a contact, the contact pitch is determined by the pitch of the wiring pattern 5. The wiring pattern 5 of the FPC board 3 is formed with a narrow pitch similarly (correspondingly) to the wiring pattern formed on the rigid flex wiring board 4 by the conventional pattern forming technique, so that the same number of wirings as the conventional one is used. However, the width of the connector device is narrow.

When connecting this connector device to another connecting member, the connecting member is inserted through the opening 9 of the metal shell 10. Then, the contact point of the connection member comes into contact with the pattern portion 5a of the mountain portion a of the spring member 1. Then, when the connecting member is further inserted, the mountain-shaped portion a bends and the contact point of the connecting member advances to the back to obtain a stable contact pressure with respect to the pattern portion 5a.

As described above, according to the connector device of this embodiment, the wiring pattern 5 formed on the FPC board 3 is used as a contact, and the wiring pattern 5 is formed at a narrow pitch by using the conventional wiring pattern forming technique. The size of the connector device can be reduced in the width direction.

Further, since the FPC board 3 in which the wiring patterns 5 are formed with a narrow pitch can be drawn out from the rigid flex board 4 with the same width, the mounting space of the connector device required on the rigid flex board 4 is mounted with other parts. You will be able to use it effectively.

Further, since the FPC board 3 can be pulled out from the rigid flex board 4 without soldering, it is possible to contribute to quality improvement when mounting on the board.

Further, by forming a solid pattern on the back surface of the FPC board 3 and connecting this wiring pattern to the ground (ground), impedance matching on the circuit can be freely performed.

[0025]

As described above, according to the connector device of the present invention, since the wiring pattern of the flexible printed wiring board is used as a contact, the contact portion can be formed with a narrow pitch by the conventional pattern forming technique. Thus, the pitch of the wiring pattern on the substrate can be made to correspond to the contact pitch of itself.

As a result, the connector device itself can be downsized.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of a connector device according to an embodiment of the present invention.

FIG. 2 is a front view showing a mounting example of a conventional connector device.

FIG. 3 is a perspective view of FIG. 2.

[Explanation of symbols]

1 ... Spring member, 2 ... Guide pin, 3 ... Flexible printed wiring board, 4 ... Rigid flex substrate, 5 ... Wiring pattern, 6 ... Hole, 7 ... Upper mold, 8 ... Lower mold, 9 ... Opening, 10 ... Metal shell.

Claims (1)

[Claims] 1. A spring member having a mountain-shaped elastic portion at one end, and a flexible printed wiring board fixed to the spring member by arranging a wiring pattern so as to ride over the mountain-shaped elastic portion of the spring member. A connector device, comprising: a mold member that holds the spring member from the front and back so as to open a portion of the wiring pattern located in the mountain-shaped elastic portion as an electrical contact portion with another.