JP2000106236A - Printed wiring tape connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printed wiring tape connector that can be miniaturized. SOLUTION: A printed wiring tape connector 20 includes a bottom plate 22 which has a number of electrode terminals 21, a connector main body 26 having an upper plate 24 opposite to the bottom plate 22, and a reinforcing plate 30 that is mounted on a printed wiring tape 16 and inserted between the bottom plate 22 and the upper plate 24, when the wiring pattern of the printed wiring tape 16 is connected to the electrode terminals 21. The connector main body 26 has a locking part 32 for locking the reinforcing plate 30. Each electrode terminal has a solder bump. The reinforcing plate 30 has an elastic plate made of rubber, which is located on the side of the plate 30 abutting against the printed wiring tape. Thereby the printed wiring tape connector, in which the depth and height of the connector body are greatly reduced while the reliability of an electric contact is secured, can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed wiring tape connector, and more particularly, to a miniaturized printed wiring tape connector.

[0002]

2. Description of the Related Art A connector for printed wiring tape is a connector for connecting a flexible tape-shaped connector such as FFC (flexible flat cable) or FPC (flexible printed circuit) having fine patterned wiring. It is used as Hereinafter, a conventional connector for a printed wiring tape will be described with reference to the drawings.

FIG. 5 is a perspective view of a connector body of a conventional printed wiring tape connector, and FIG. 6 is a side sectional view showing a state where the printed wiring tape is mounted on the printed wiring tape connector. Conventional printed wiring tape connector 10
Is a connector electrode 1 composed of a number of conductive leaf springs.
The connector body 12 includes a connector body 12 mounted on a motherboard (not shown) and a reinforcing plate 14 that is inserted into and detachably attached to the connector body 12. The material of the connector electrode 11 is, for example, phosphor bronze. Using the printed wiring tape connector 10, the printed wiring tape 16
In order to connect the wiring pattern and the connector electrode 11,
The reinforcing plate 14 is placed on the printed wiring tape 16, and the printed wiring tape 16 and the reinforcing plate 14 are mounted on the connector electrodes 11 of the connector body 12 in a plug-in manner. In this manner, the printed wiring tape 1 is placed between the connector body 12 and the reinforcing plate 14.
6, the wiring pattern of the printed wiring tape 16 and the connector electrode 11 are electrically and mechanically connected.

[0004]

By the way, conventionally, it is necessary to secure the reliability of the electrical connection by making the pressing force at the contact portion between the wiring pattern of the printed wiring tape and the connector electrode a predetermined force or more. . For this reason, it is necessary that the connector electrode has a predetermined spring characteristic, and accordingly, there are various restrictions on the dimensions such as the thickness and the width of the connector electrode. Further, in order to prevent the plastic deformation of the connector electrode and to make the connector electrode make good contact, it is necessary to form a space in which the connector electrode can sufficiently bend in the height direction of the connector main body. For this reason, there has been a problem that the progress of miniaturization of the printed wiring tape connector has been hindered. In view of the above circumstances, an object of the present invention is to provide a printed wiring tape connector that can be reduced in size.

[0005]

In order to achieve the above object, a connector for a printed wiring tape according to the present invention comprises a connector plate having a bottom plate having a large number of electrode terminals, and an upper plate facing the bottom plate. When connecting the wiring pattern and the electrode terminal of the printed wiring tape, a printed wiring tape connector comprising a reinforcing plate placed on the printed wiring tape and inserted between the bottom plate and the upper plate, The connector body has a locking portion for locking the reinforcing plate on the side of the connector body, each electrode terminal has an upward semi-spherical convex portion made of a conductive material, and the reinforcing plate abuts the elastic plate against the printed wiring tape. Prepare for the side,
When the reinforcing plate and the printed wiring tape are inserted between the bottom plate and the upper plate, the printed wiring tape is pressed toward the electrode terminals by the elastic plate.

With the printed wiring tape connector according to the present invention, when the printed wiring tape is sandwiched, the wiring pattern of the printed wiring tape can be changed by the elastic plate even if the height of the upward hemispherical convex portion varies. Each of the electrode terminals comes into contact with the upward hemispherical convex portion at a single point with a high pressing force. Accordingly, a connector for a printed wiring tape which has high reliability of electrical contact and is downsized compared to the related art is realized.

[0007] The upward hemispherical convex portion is made of, for example, a bump. The elastic plate is usually made of rubber. Preferably,
The reinforcing plate includes a frame around the elastic plate to prevent the elastic plate from being displaced. Thus, even if the attachment and detachment of the connector body and the printed wiring tape are repeated, the elastic plate does not move from the position provided on the reinforcing plate.

[0008]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Embodiment Example The embodiment is an embodiment of the present invention. FIG.
FIG. 1 is a perspective view illustrating a configuration of a printed wiring tape connector according to an embodiment of the present invention. The printed wiring tape connector 20 according to the present embodiment includes a bottom plate 22 having a large number of electrode terminals 21,
When the connector main body 26 having the upper plate 24 facing the bottom plate 22 and the wiring pattern 17 (see FIG. 3) of the printed wiring tape 16 and the electrode terminals 21 are electrically and mechanically connected, the printed wiring tape 16 And a reinforcing plate 30 that is placed on the base plate and inserted between the bottom plate 22 and the upper plate 24. The connector main body 26 has a locking portion 32 for locking the reinforcing plate 30 on a side of the connector main body.

FIG. 2 is a partially enlarged perspective view showing the structure of the electrode terminal 21, and FIG.
FIG. 4 is a partial side cross-sectional view of a state where a printed wiring tape 16 is sandwiched at 0. Each electrode terminal is provided with a solder bump 34 as an upward hemispherical convex portion. The dimensions of the solder bumps 34 are 30 μm in height and 60 μm in diameter. The reinforcing plate 30
Has an elastic plate 36 made of rubber on the printed wiring tape contact side, and a slit 40 is formed in the elastic plate 36 in order to suppress a mechanical influence from an adjacent electrode terminal. FIG. 4 is a rear view of the reinforcing plate 30. Reinforcement plate 3
Reference numeral 0 denotes a frame provided around the elastic plate 36 for preventing the elastic plate 36 from being displaced.

To electrically and mechanically connect the wiring pattern 17 of the printed wiring tape 16 to the electrode terminals 21 using the printed wiring tape connector 20, the reinforcing plate 30 is placed on the printed wiring tape 16 and The reinforcing plate 30 and the printed wiring tape 16 are inserted between the upper plate 22 and the upper plate 24. that time,
When the reinforcing plate 30 is pressed from above, the printed wiring tape 16 is pressed toward the electrode terminal 21 via the elastic plate 36, and the periphery of the reinforcing plate 30 is locked by the locking portion 32.

The printed wiring tape connector 20 of this embodiment does not have a spring structure as in the prior art. Also,
When sandwiching the printed wiring tape 16, the elastic plate 36
The wiring pattern 17 of the printed wiring tape contacts the solder bumps 34 of the respective electrode terminals at one point and with a high pressing force. Then, even if the height of the solder bumps 34 varies, the influence of the variations is eliminated by the elastic plate 36. Therefore, an economical printed wiring tape connector having high reliability of electrical contact and being smaller, particularly thinner than before, is realized.

[0012]

According to the present invention, there is provided a connector body having a large number of electrode terminals, and a reinforcing plate mounted on a printed wiring tape and inserted between a bottom plate and an upper plate of the connector body. The connector body has a locking portion for locking the reinforcing plate on the side of the connector body, each electrode terminal has an upward semi-spherical convex portion made of a conductive material, and the reinforcing plate abuts an elastic plate on a printed wiring tape. Prepared on the side. This makes it possible to realize a printed wiring tape connector in which the depth and height of the connector main body are significantly reduced while ensuring the reliability of electrical contact. Also, when attaching and detaching the printed wiring tape, it is only necessary to press the reinforcing plate from above or remove the reinforcing plate upward, so that it is not necessary to insert or pull out the printed wiring tape by applying a large force as in the conventional case. Absent. Therefore, the workability of attaching and detaching the printed wiring tape is improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the configuration of a printed wiring tape connector according to an embodiment.

FIG. 2 is a partially enlarged perspective view showing a configuration of an electrode terminal of the printed wiring tape connector of the embodiment.

FIG. 3 is a partial side sectional view showing a state in which a printed wiring tape is sandwiched between printed wiring tape connectors in the embodiment.

FIG. 4 is a rear view of a reinforcing plate of the printed wiring tape connector of the embodiment.

FIG. 5 is a perspective view of a connector body of a conventional printed wiring tape connector.

FIG. 6 is a side sectional view showing a state in which a printed wiring tape is mounted on a conventional printed wiring tape connector.

[Explanation of symbols]

10 ... printed wiring tape connector, 11 ... connector electrode, 12 ... connector body, 14 ... reinforcing plate, 16 ...
... printed wiring tape, 17 ... wiring pattern, 20 ... printed wiring tape connector, 21 ... electrode terminal, 22 ...
Bottom plate, 24 top plate, 26 connector body, 30
Reinforcement plate, 32 Locking portion, 34 Solder bump, 36
... elastic plate, 38 ... frame, 40 ... slit.

Claims (4)

[Claims] When connecting a wiring pattern of a printed wiring tape to a connector body having a bottom plate having a large number of electrode terminals and an upper plate opposed to the bottom plate, the printed circuit board is placed on the printed wiring tape. A connector for a printed wiring tape, comprising a reinforcing plate inserted between the bottom plate and the upper plate, wherein the connector body has a locking portion for locking the reinforcing plate on a side of the connector body, and The terminal is provided with an upwardly projecting hemispherical convex portion made of a conductor.The reinforcing plate is provided with an elastic plate on the printed wiring tape contact side, and when the reinforcing plate and the printed wiring tape are inserted between the bottom plate and the upper plate, the elastic plate is used. A connector for printed wiring tape, wherein the printed wiring tape is pressed toward an electrode terminal. 2. The printed wiring tape connector according to claim 1, wherein the upwardly-facing hemispherical convex portion comprises a bump. 3. The printed wiring tape connector according to claim 1, wherein the elastic plate is made of rubber. 4. The connector for a printed wiring tape according to claim 3, wherein the reinforcing plate includes a frame around the elastic plate for preventing displacement of the elastic plate.