JP2003249292A - Connector for flat conductor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for a flat conductor, which can surely retain a positional relation of the flat conductor to a contact terminal 5 fixed to a housing. <P>SOLUTION: A operating member 7 rotatably held on a housing containing a plurality of contact terminals 5 and being able to insert and hold a flat conductor is provided, and grooved slits 7b are provided at positions corresponding to respective conductor portions of the flat conductor on a side end of a rotation axis of the operating member 7. A portion 5b of the contact terminal 5 for engaging with the operating member is engaged with the slit 7b, and a contact portion is brought into contact under pressure with the conductor portion of the flat conductor. Since the portion 5b of each of the contact terminals 5 for engaging with the operating member enters the slit 7b provided at the end of the operating member 7, a positional relation of the conductor portions of the flat conductor to the contact terminals 5 does not deviate even when the operating member 7 is laterally moved. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for connecting a flat conductor such as a flexible flat cable (FFC) or a flexible printed circuit board (FPC).

[0002]

2. Description of the Related Art The applicant has invented and applied for a flat conductor connector disclosed in Japanese Patent Laid-Open No. 2001-230005 as a flat conductor connector. The present invention relates to improvements in this connector. In the flat conductor connector disclosed in Japanese Unexamined Patent Application Publication No. 2001-230005, an operating portion is supported by a bearing. Further, as a means for locking the operating member in the horizontal position, the operating member is provided with a convex portion and the housing is provided with a concave portion, and these are fitted to hold the locked state.

[0003]

However, in the conventional flat conductor connector, although the operating portion is supported by the bearing, there is still a clearance that can move to the left and right with respect to the housing, and the operating portion is accommodated. Since the flat conductor thus formed can also move, the positional relationship with the contact terminal fixed to the housing may be deviated.

Therefore, it is an object of the present invention to provide a connector for a flat conductor which can surely maintain the positional relationship between the flat conductor and the contact terminal fixed to the housing.

Further, if the operating member is provided with a convex portion and the housing is provided with a concave portion, there is a problem that the holding of the locked state is unstable. Therefore, a structure that makes this holding more reliable is also proposed.

[0006]

In order to achieve the above-mentioned object, in the present invention, a housing accommodating a plurality of contact terminals and a rotatably held relative to this housing, a flat conductor can be inserted and held. An operating member, the operating member is provided with a partition at a position corresponding to each conductor portion of the flat conductor at an end portion on the rotating shaft side, and the contact terminal has an operating member engaging portion, A flat conductor connector having a mating portion that is a contact terminal that engages with the partition portion. In this way, since the operating member engaging portion of each contact terminal fits into the partition portion provided at the end portion of the operating member, the positional relationship between each contact terminal and the conductor portion of the flat conductor does not deviate even if the operating member moves laterally. , The connection status becomes extremely stable.

If the partition portion is a slit partitioned by a partition wall, the positional relationship between the contact portion of each contact terminal and the conductor portion of the flat conductor can be kept stable and extremely stable.

Further, the contact terminal includes a pair of contact portions forming a recess for receiving the end portion of the flat conductor and a soldering fixing portion for connecting to the substrate. The soldering fixing portion has an end face to be soldered. If the notch groove is provided, the notch groove 21 can prevent the displacement of the solder, eliminate the occurrence of a short-circuit bridge, and improve the soldering state.

Further, mounting members for soldering and fixing to the substrate are provided at both ends of the housing, and the mounting members include a body holding portion having a U-shaped cross section, and soldering tongue pieces extending therefrom. It has a folded-back portion and a leaf spring portion that extends forward from the folded-back portion through the body holding portion, and has an engaging hole at the tip of the leaf spring portion with which the locking projection of the operating member engages. If the metal plate is an integral body, the plate spring portion can be lengthened and a sufficient elastic force can be generated, so that the operating member can be reliably locked and released easily. Further, since the operating member is locked to the mounting member fixed to the substrate, the strength is improved.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

1 and 2 are external perspective views of a flat conductor connector 1 of the present invention. FIG. 1 shows a state in which an operating member 7 is stable in a vertical position, and FIG. 2 shows the operating member 7 in a horizontal position. Shows locked in position. FIG. 9 shows an example of a known flat conductor 15. The flat conductor 15 has a large number of wired conductor portions 15a wrapped in an insulating cover.

The flat conductor connector 1 has a housing 3 accommodating a plurality of contact terminals 5 at equal intervals, a rotatably held vertical and horizontal position with respect to the housing 3, and an insertion port 7a into which the flat conductor 15 is inserted. The operating member 7 and left and right mounting members 10 and 11 for mounting on a circuit board (not shown), and bearing members 13 and 14 press-fitted to the left and right of the housing space of the operating member 7 of the housing 3. .

As shown in FIG. 3, the operating member 7 has an insertion opening 7a for inserting and holding the flat conductor 15 (see FIGS. 1 and 2).
Is provided in the center thereof, and the flat conductor 15 is provided behind the insertion opening 7a.
Has an abutting portion 7k (see FIG. 8) with which the tip of the abuts.
The contact portion 7k does not necessarily have to be formed over the entire length of the insertion opening 7a.

A contact terminal 5 to be described later is provided in front of the contact portion 7k.
A large number of groove-shaped slits 7b are provided as partitioning portions at positions corresponding to the conductor portions 15a of the inserted flat conductor 15 for receiving the operation member engaging portions 5b. Here, each slit 7b is reliably separated by a partition wall 7c.

Rotating shafts 7e, 7 which are respectively fitted to the left and right shaft holding parts 3b and 3c of the housing 3 are provided on the left and right sides.
f is formed.

In front of the left and right side surfaces, left and right engaging holes 10e of mounting members 10 and 11 to be described later, which are fixed to the housing 3,
Locking protrusions 7g and 7h are formed to respectively engage with and cooperate with 11e to maintain the horizontal position of the operating member 7.

The operating member 7 includes rotating shaft portions 7e and 7e.
f is fitted into the left and right shaft holding portions 3b and 3c of the housing 3, respectively, and bearing members 13 and 14 to be described later are press fitted into the left and right shaft holding portions 3b and 3c to be rotatably assembled to the housing 3.

The contact terminal 5 has a shape as shown in FIG. 5, and is fitted in the terminal groove from the rear of the housing 3. The contact terminal 5 is formed of a conductive metal plate, and the contact portions 5a and the operating member engaging portion 5b are formed at the ends of the arm portions 5d and 5e that form the cutout portions 5c that receive the ends of the flat conductors 15. To do. In the opposite direction, an abutting portion 5i that abuts on the housing 3 to determine the pushing position is formed in the upper part of the figure, and a fixing part 5f for soldering to a circuit board or the like is formed in the lower part of the figure. The fixing portion 5f has a cutout groove 5h on an end surface 5g that contacts a circuit board or the like.

In the contact terminal 5, the operating member engaging portion 5b is shown in FIG.
As shown in FIG. 5, the slits 7b of the operating member 7 are arranged so as to come into contact with the conductor portion 15a of the flat conductor 15 inserted into the operating member 7 without lateral displacement.

The left mounting member 10 and the right mounting member 11 are
As shown in the perspective views of FIGS. 1 and 2, the main body holding portions 10a and 11a are inserted into the mounting holes 3d and 3e provided in the housing 3, respectively, and the housing 3 has a circuit shape. Hold on a substrate. Since the left and right mounting members 10 and 11 are plane-symmetrical, the structure of the mounting members will be described based on FIG. 6 showing the right mounting member 11. Mounting member 1
Reference numeral 1 denotes a main body holding portion 11a having a U-shaped cross section, a soldering tongue piece 11b extending therefrom, a folded portion 11c, and the folded portion 11c to the main body holding portion 1.
A leaf spring portion 11d that passes through 1a and extends forward, and an engaging hole 11e are provided at the tip of the leaf spring portion 11d.

Next, based on FIG. 7, the bearing members 13, 1
4 will be described. Since the bearing members 13 and 14 that are press-fitted into the shaft holding portions 3b and 3c of the housing 3, respectively, have plane symmetry, the left bearing member 13 will be described with reference to FIG. The bearing member 13 includes a bearing member main body 13a, a semi-cylindrical portion 13b protruding therefrom, and a press-fitting portion 13c extending downwardly into the housing 3. The semi-cylindrical portion 13b is fitted into the semi-circular arc projection of the rotary shaft portion 7e of the operating member 7 to form the rotary shaft of the operating member 7.

FIG. 8 is a sectional view taken along the line EE of FIG. 1, and the operation of the present embodiment will be described based on this. In FIG.
The same reference numerals are given to the parts described so far, and the description thereof will be omitted. FIG. 8A shows the operation member 7 with respect to the housing 3.
Shows a stable state in a substantially vertical position, as shown in FIG.
Shows a state in which the operation member 7 is locked in a horizontal position with respect to the housing 3.

In FIG. 8A, as described above, the contact terminal 5 is inserted and fixed in the terminal groove of the housing 3 from the left side in the drawing to the position where the abutting portion 5i abuts the housing 3. .

The head of the operating member engaging portion 5b of the contact terminal 5 is slightly fitted into the slit 7b of the operating member 7.

On the other hand, the flat conductor 15 has its conductor portion 15a.
Is on the left side in the drawing, and is inserted into the insertion opening 7a of the operation member 7 from above to a position where the tip of the operation member 7 contacts the contact portion 7k of the operation member 7.

With the flat conductor 15 inserted, when the operating member 7 is rotated counterclockwise to the horizontal state shown in FIG. 8 (b), the operating member engaging portion 5b further has the slit 7b.
Then, the lower arm 5d of the contact terminal 5 is also bent, and the conductor portion 15a of the flat conductor 15 is pressed against the contact portion 5a to realize electrical connection.

As described above, in the present embodiment, since the operating member engaging portion 5b of each contact terminal 5 is inserted into the slit 7b provided at the end of the operating member 7, even if the operating member moves laterally. The positional relationship between the conductor portion 15a of the flat conductor 15 and each contact terminal 5 does not deviate, and the connection state is extremely stable.

When the end surface 5g of the fixed portion 5f of the contact terminal 5 is placed on the solder paste applied on the substrate from above, the solder paste is pushed laterally and rises, and the space between the adjacent contact terminals 5 is increased. Although the bridge may occur, the notch groove 5h can prevent the solder from being displaced and the generation of the bridge can be eliminated, and the soldering state can be improved.

Further, the leaf spring portion 10 of the mounting members 10 and 11
Since d and 11d can be made long and sufficient elastic force can be generated,
The operating member 7 is locked securely and can be released easily.
Further, the mounting members 10 and 1 in which the operating member 7 is fixed to the substrate
Since it locks to 1, the strength is improved.

The partition provided at the end of the operating member does not have to be a groove-shaped slit partitioned by the partition wall in the above-described embodiment, but may be a through hole-shaped slit or the partition wall partially. It can be composed of any kind.

[0031]

As described above, according to the present invention,
Since the contact part of each contact terminal enters through a partition part such as a slit provided at the end of the operating member, the positional relationship with the conductor part of the flat conductor does not deviate even if the operating member moves laterally,
The connection status becomes extremely stable.

[Brief description of drawings]

FIG. 1 is an external perspective view of a flat conductor connector according to an embodiment of the present invention, showing a state in which an operating member is stable in a vertical position.

FIG. 2 is an external perspective view showing a state in which an operating member of the flat conductor connector of FIG. 1 is locked in a horizontal position.

3 is an external perspective view of an operating member of the flat conductor connector shown in FIG. 1. FIG.

FIG. 4 is an explanatory perspective view showing a relationship between an operation member and a contact terminal of the flat conductor connector shown in FIG.

5 is an external perspective view of a contact terminal used in the flat conductor connector shown in FIG. 1. FIG.

6 is an external perspective view of a right mounting member of the flat conductor connector shown in FIG. 1. FIG.

7 is a perspective view of a left bearing member used in the flat conductor connector shown in FIG. 1. FIG.

8 is a cross-sectional view taken along the line YY of FIG. 1, in which (a) shows a state in which the operating member is in a substantially vertical position, and (b) shows a state in which the operating member is in a horizontal position.

FIG. 9 is a partial perspective view showing an example of a flat conductor.

[Explanation of symbols]

1 flat conductor connector, 3 housings, 3b, 3c
Shaft holding part, 3d, 3e mounting holes, 5 contact terminals, 5
a contact portion, 5b operation member engaging portion, 5c notch portion,
5d, 5e arm part, 5f fixed part, 5g end face, 5
h notched groove, 5i abutting portion, 7 operating member, 7a
Insertion slot, 7b partition (slit), 7c partition,
7e, 7f rotating shaft portion, 7g, 7h locking protrusion,
7k contact part, 10,11 mounting member, 10a, 11a
Main body holding part, 11b Soldering tongue piece, 11c Folding part, 11d Leaf spring part, 10e, 11e Engagement hole, 1
3,14 bearing member, 13a bearing member main body, 13b
Semi-cylindrical part, 13c press-fitting part, 15 flat conductor, 15a
Conductor part.

Claims (4)

[Claims] 1. A housing having a plurality of contact terminals accommodated therein, and an operating member rotatably held in the housing and capable of inserting and holding a flat conductor, wherein the operating member has a rotary shaft side end portion. A partition part is provided at a position corresponding to each conductor part of the flat conductor, the contact terminal has an operating member engaging part, and the operating member engaging part is a contact terminal engaging with the partitioning part. A characteristic flat conductor connector. 2. The flat conductor connector according to claim 1, wherein the partition portion is a slit partitioned by a partition wall. 3. The contact terminal comprises a pair of contact portions forming a recess for receiving the end portion of the flat conductor, and a soldering fixing portion for connecting to a substrate, and the soldering fixing portion has an end face to be soldered. A cutout groove is provided, wherein the cutout groove is provided.
The flat conductor connector described in. 4. A mounting member for soldering and fixing to a substrate is provided at both ends of the housing, and the mounting member includes a main body holding portion having a U-shaped cross section, and a soldering tongue piece extending from the main body holding portion. It has a folded-back portion and a leaf spring portion that extends forward from the folded-back portion through the body holding portion, and has an engagement hole at the tip of the leaf spring portion with which the locking projection of the operating member engages. The flat conductor connector according to claim 1, wherein the flat conductor connector is an integral metal plate.