JPH0735339Y2 - Flexible board connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a connector for a flexible substrate used for connecting a flexible substrate in a consumer device, an industrial device or the like.

[Prior Art] Conventionally, flexible board connectors have been shown in Figs.
As shown in the figure, it has a base insulator 3 having a fitting portion 1 formed on one side, and a slide insulator 5 which is provided in the fitting portion 1 so as to be fittable and removable.

As shown in FIG. 11, the base insulator 3 incorporates a plurality of conductive contacts 11 that come into contact with the conductor portions 9 formed on the strip-shaped flexible substrate 7.
These contacts 11 are arranged in a line in the longitudinal direction of the fitting portion 1. Further, the contact 11 is shown in FIG.
As shown in Fig. 13, a holding part built in the bottom of the fitting part 1.
13, a first contact spring piece 15 and a first contact spring piece 17 extending from the holding portion 13 toward the opening of the fitting portion 1. The first and second contact spring pieces 15 and 17 extend in a direction in which they gradually separate from one side wall as they approach the opening from the bottom of the fitting portion 1. First and second contact spring pieces 1
Contact points 15a and 17a are formed at the tips of the reference numerals 5 and 17, respectively. The dimension of the first contact spring piece 15 from the holding portion 13 to the contact portion 15a is such that the second contact spring piece 17 has a holding portion 13 to the contact portion 17a.
It is shorter than the size up to a.

Further, the first and second contact spring pieces 15 and 17 are alternately arranged in the longitudinal direction of the fitting portion 1. In addition, contact 11
From the bottom of the base insulator 3 to the terminal portion 19
It is growing. The terminal portion 19 is electrically connected to the circuit of the printed circuit board 21 on which the base insulator 3 is mounted.

Further, the base insulator 3 is provided with a reinforcing metal member 23 on each of a pair of side surfaces orthogonal to the longitudinal direction.

On the other hand, in the flexible substrate 7, the conductor portion 9 is covered with a thin electrically insulating sheet, and the conductor portion 9 is exposed at a portion where the sheet is peeled off at one end surface thereof. In a portion where each conductor portion 9 is exposed, a plurality of conductor portions 9 are arranged without contacting each other. Each conductor portion 9 is formed in a zigzag shape in the longitudinal direction so as to make a one-to-one contact with each of the first and second contact spring pieces 15 and 17.

Such a flexible substrate 7 is inserted into the slide insulator 5 with the conductor portion 9 facing forward, and then fitted into the fitting portion 1 of the base insulator 3 together with the slide insulator 5. Then, the flexible substrate 7
The contact portions 15a and 17a of the first and second contact spring pieces 15 and 17 come into one-to-one contact with the conductor portion 9 of FIG. As a result, the circuit of the printed circuit board 21 and the flexible board 7 are electrically connected.

[Problems to be Solved by the Invention] However, since the contacts 11 are arranged in a line in the longitudinal direction of the fitting portion 1, there is a problem that the longitudinal dimension of the connector becomes long.

Therefore, the request for shortening the dimension of the connector in the longitudinal direction has been dealt with by narrowing the interval between the contacts 11 so as to be in the range of 1 mm to 0.5 mm. It is difficult to reduce the gap, and the cost of the connector is increased when trying to improve the accuracy.

Further, as the distance between the contacts 11 becomes narrower, there is a problem such as a short circuit between the adjacent contacts 11 due to the displacement between the flexible substrate 7 and the contact portion of the contact 11, so that caution is required in using the connector.

Further, since the base insulator 3 has the reinforcing metal member 23, the occupied area in the longitudinal direction is further increased, so that the mounting density of the connectors on the printed circuit board 21 is reduced.

[Means for Solving the Problems] According to the present invention, in a connector for connecting a flexible substrate, a base insulator having a fitting portion formed on one side and a first insulator located at the fitting portion and facing each other. 1
And a first contact having a second contact portion and a second contact portion, respectively, and the first and second contact portions for pressing the flexible substrate against the first contact and the second contact. A slide insulator, the first contact extends outwardly from the base insulator and has a first terminal portion located on the one side of the base insulator, and the second contact is the base. The slide insulator has a second terminal portion that extends outward from the insulator and is located on the other side of the base insulator, and the slide insulator has an insertion opening for inserting and positioning the flexible substrate folded in two in the width direction. A flexible board connector characterized by having is obtained.

Further, according to the present invention, there is provided a flexible board connector, wherein the base insulator has a reinforcing member for reinforcing the connection of the first and second terminal portions in the same direction as the first terminal portion. can get.

Also, according to the present invention, there is obtained a connector for a flexible substrate having an engaging device for engaging the base insulator and the slide insulator with each other in the disengagement direction.

[Embodiment] FIGS. 1 to 5 show an embodiment of a connector for a flexible substrate of the present invention.

The flexible board connector shown has a fitting part 31 on one side.
And the first and second contact parts 35 located in the fitting part 31 and facing each other.
First and second contacts 35,37 having a and 37a respectively
And a slide insulator 39 fitted between the first and second contact portions 35a, 37a.

The first contact 35 has a first holding portion 35b whose middle portion is held by the bottom portion of the fitting portion 31, and the first holding portion 35b.
And a first terminal portion 35c extending outward from the base insulator 33 and located on one side of the base insulator 33. The second contact 37 has a second holding portion 37 whose middle portion is held by the bottom portion of the fitting portion 31.
b, and the base insulator which is connected to the second holding portion 37b and extends outward from the base insulator 33.
33 and the second terminal portion 37c located on the other side.
That is, the first and second contacts 35, 37 have the first and second contacts.
The holding portions 35b and 37b of the above are press-fitted and fixed to the base insulator 33.

Therefore, the first and second contact portions 35a, 37a are connected to the fitting portion 31.
They face each other so that they approach each other. The first and second terminal portions 35c and 37c are extended to one side and the other side of the base insulator 33, respectively. These first and second terminal portions 35c and 37c are portions connected to a circuit of a printed circuit board (not shown).

The base insulator 33 is provided with a pair of reinforcing members 41 in the same direction as the first terminal portion 35c for reinforcing the connection of the first terminal portion 35c to the printed circuit board. That is, the base insulator 33 is provided with the reinforcing member 41 so as to have the same size and positional relationship as the first terminal. One end of the reinforcing member 41 is press-fitted into the base insulator 33 to be held and fixed.

As shown in FIG. 6 and FIG. 7, the slide insulator 39 is formed in the longitudinal direction for inserting the conductor portion 45 of the flexible substrate 43 having the conductor portion exposed at one end in the front direction. It has two insertion openings 47 and a plate-shaped insertion portion 49 extending to one side so as to divide these insertion openings 47 into two in the longitudinal direction. The insertion portion 49 serves to press the flexible substrate 43 against the first and second contacts 35 and 37 when the slide insulator 39 and the flexible substrate 43 are fitted to the fitting portion 31.

A pair of slide plates 51 is formed at both ends of the insertion portion 49. Engaging frames 53 are formed around the inner surfaces of the slide plate 51 that face each other. A first engaging protrusion 55 and a second engaging protrusion 57 are formed on the side surface of the base insulator 33 which is orthogonal to the longitudinal direction. The engagement frame 53 of the slide insulator 39 and the first and second engagement protrusions 55 and 57 of the base insulator 33 together constitute an engagement device.
This engagement device engages the base insulator 33 and the slide insulator 39 in the disengagement direction.

Next, the operation of this flexible board connector will be described below.

As shown in FIG. 5, the fitting portion of the base insulator 33
The insertion portion 49 of the slide insulator 39 is pushed into the 31.
Then, the engagement frame 53 of the slide insulator 39 crosses over the first engagement projection 55 of the base insulator 39 and the engagement frame 53.
The inside of 53 is caught by the first engagement protrusion 55, and the slide insulator 39 is held by the base insulator 33.

The flexible board 43 has two separate flexible boards 43.
As shown in FIG. 6, a notch portion 61 is formed by notching the central portion of one end of one flexible substrate in the longitudinal direction, and two conductors are stacked with the notch portion 61 as the center. The part 45 is bent so as to face outward, and is inserted from the insertion port 47 of the slide insulator 39 to the front of the tip of the insertion part 49.

As shown in FIG. 8, the slide insulator 39 is pushed into the base insulator 33 to hold the flexible substrate 43 after inserting it. At this time, the engagement frame 53 crosses over the slope of the second engagement projection 57 of the base insulator 33, and the inside of the engagement frame 53 is hooked by the opposite slope.

Further, the base insulator 33 is pushed until it hits the bottom of the fitting portion 31. The flexible substrate 43 pushes the insertion portion 49 of the slide insulator 39 into each contact portion.
Push in the direction to widen the gap between 35a and 37a.

The flexible substrate 43 can be easily detached by pulling out the slide insulator 39. On this occasion,
The inner side of the engagement frame 53 is hooked by the first engagement protrusion 55 so that the slide insulator 39 does not come off from the base insulator 33.

[Effects of the Invention] As described above with reference to the embodiments, according to the flexible board connector of the present invention, the contacts are provided in two rows in the fitting portion of the base insulator, and the ground terminal is provided on one side of the base insulator and the other. Since the reinforcing member is extended to each side and the reinforcing member is oriented in the same direction as the first terminal, the area occupied by the printed circuit board can be reduced. As a result, the mounting density of the connectors mounted on the printed circuit board can be increased.

Further, since the flexible substrate can be manufactured by the conventional method level, it can be easily manufactured.

Furthermore, since the distance between the contacts can be narrowed, there is no concern about the contact between adjacent contacts, and a flexible board connector with improved reliability can be obtained.

[Brief description of drawings]

1 is an exploded perspective view of a flexible board connector according to an embodiment of the present invention, FIG. 2 is a plan view showing a fitted state of the flexible board connector of FIG. 1, and FIG.
FIG. 4 is a front view, FIG. 4 is a side view of FIG. 2, FIG. 5 is a sectional view showing a state in which the flexible board is inserted into the flexible board connector of FIG. 1, and FIG. 6 is a flexible board of FIG. Plan view of flexible board used for connector
7 is a perspective view of the flexible board of FIG. 6 in a bent state, FIG. 8 is a sectional view of the flexible board of FIG. 7 in contact with a contact, and FIG. 9 is a conventional connector for flexible board. FIG. 10, FIG. 10 is a plan view of a conventional flexible board connector, FIG. 11 is a plan view showing a flexible board used for the flexible board connector of FIG. 9, and FIG. 12 is a flexible board of FIG. Sectional drawing which shows the insertion direction of a connector and a flexible board, and shows the position of a 1st contact spring piece, FIG. 13 shows the insertion direction of the connector for flexible boards and a flexible board of FIG. 9, and 2nd contact spring piece. It is sectional drawing which shows the position of. 1; Fitting part, 2; Base insulator, 5; Slide insulator, 7; Flexible substrate, 9; Conductor part, 11; Contact, 13 ;, 15; First contact spring piece, 17; Second contact spring piece , 19; contact part, 21; printed circuit board, 31; fitting part, 33;
Base insulator, 35; first contact, 35a; first contact portion, 35c; first terminal portion, 37a; second contact portion, 37
c; second terminal portion, 37; second contact, 39; slide insulator, 41; reinforcing member, 43; flexible substrate, 4
5; conductor part, 47; insertion port, 49; insertion part, 53; engagement frame, 55; first
Engaging portion, 57; second engaging portion.

Claims (3)

[Scope of utility model registration request] 1. A connector for connecting a flexible substrate, comprising: a base insulator having a fitting portion formed on one side; and first and second contact portions located at the fitting portion and facing each other. The first and second contacts, and a slide insulator fitted between the first and second contact portions for pressing the flexible substrate against the first and second contacts. Contact extends outward from the base insulator and has a first terminal portion located on the one side of the base insulator, and the second contact extends outward from the base insulator. The slide insulator has a second terminal portion located on the other side of the base insulator, and the slide insulator has two folds in the width direction. Connector for a flexible substrate, characterized in that inserting the reluctance substrate has an insertion hole for positioning. 2. The flexible board according to claim 1, wherein the base insulator has a reinforcing member for reinforcing the connection between the first and second terminal portions in the same direction as the first terminal portion. connector. 3. The connector for a flexible substrate according to claim 1, wherein the base insulator and the slide insulator have engaging devices that engage with each other in a disengaging direction.