JP2612516B2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector, and more particularly, to a connector connected to the middle of a flat ribbon cable.

[0002]

2. Description of the Related Art FIG. 7 shows a conventional example of such a connector for a flat ribbon cable. That is, this connector 30
Then, the flat ribbon cable 7 is connected to a contact press-contact portion (usually a U-contact portion) protruding from the upper surface of the connector main body 301 by press-welding each core wire at an intermediate portion thereof (hereinafter, referred to as “di-chain connection”).
After that, the cover body 302 is put on the flat ribbon cable 7 from above, and the connector body 301 and the cover body 302 are covered.
And the flat ribbon cable 7 is sandwiched and held therebetween.

[0003]

By the way, a connector as described above which is used when a connector is mounted in the middle of a flat ribbon cable to make a dither chain connection, conventionally, one flat ribbon is provided for one connector. This is for connecting cables, and two or more flat ribbon cables cannot be connected in a dizy chain to one connector.

However, with the increase in the density of components in the housing of electronic equipment, for example, there is a strong demand for simplification or reduction in the number of flat ribbon cables between printed boards or for connection between printed boards and electronic components. ,
For this reason, there is a demand for a connector capable of connecting two or more flat ribbon cables in a dizy chain connection.

An object of the present invention is to provide a connector capable of connecting two or more flat ribbon cables in a dizy chain connection.

[0006]

According to the present invention, there is provided a connector which is mounted in the middle of a flat ribbon cable, wherein a plurality of contacts connected to each core wire of the flat ribbon cable are arranged in parallel. More than one
It is arranged in the length direction of the flat ribbon cable,
The height of the connecting portion between the flat ribbon cable is different stepwise for each connection portion, the connecting portion is relatively high
In the connection part located at the right position,
The gap in the direction is such that the connection part is relatively low
Flat ribbon cable connected to a contact at a certain connection point
A connector characterized in that it is set to a size that allows each core wire of the cable to pass through .

Further, according to the present invention, the connection portion has
The plurality of contacts at a relatively high connection point
Has a plate-shaped cable passage that defines the gap
Thus , a connector is obtained.

Further, according to the present invention, the connection portion has
Multiple contacts at relatively high connections
Are obtained, wherein the connection portions are arranged in a staggered manner .

[0009]

As described above, the height of the connection portion with the flat ribbon cable is varied stepwise for each connection portion so that the flat ribbon cable connected to the connection portion located on the lower side is connected to the connection portion located on the higher side. Without being disturbed by the department,
As a result, it becomes possible to connect two or more cables to the connector in a dizy chain connection.

[0010] Further, by providing the gap and the cable passage portion as described above, the flat ribbon cable connected to the first-stage connection portion is prevented from being hindered by a plurality of contacts constituting the second-stage connection portion. It can be reliably prevented.

[0011]

Embodiments will be described below. In FIG. 1, a connector A of the embodiment is of a type having two sets of connection portions with flat ribbon cables 7 and 71, and includes a base insulator 1, a middle insulator 3, a cover insulator 4, a strain relief 5, and a lever 6. It is configured. As shown in detail in FIG. 2, the base insulator 1 has a plurality of contact storage holes 11 to 13 formed in parallel. The contact storage holes 12 and 13 are alternately arranged with respect to the contact storage holes 11 and at a suitable interval from each other in the upper left direction in the drawing,
That is, they are arranged in a staggered manner. Contacts 21 to 23 are press-fitted into these contact storage holes 11 to 13, respectively. A first-stage connection portion is formed by the plurality of contacts 21 press-fitted into the contact storage holes 11, and a second-stage connection portion is formed by the plurality of contacts 22 and 23 press-fitted into the contact storage holes 12 and 13. You.
Contact storage holes 12 and 13 are arranged in a staggered manner
Therefore, the plurality of contacts 22 and 23 in the second stage connection portion are also required.
Staggered arrangement. And as will become clear from later
Between the plurality of contacts 22 and 23 in the juxtaposed direction.
Speci? Cally, at the cable passage portions 223 and 233,
The specified interval is equal to the number of contacts 2 at the first stage connection.
Pass each core wire of the flat ribbon cable connected to 1.
Set to dimensions. In addition, 14 is a cover insulator 4
The locking projection piece engages with the locking frame piece 44 of FIG.

As shown in FIG. 3, the contact 22 includes a contact contact portion 221 serving as a current extraction terminal from the flat ribbon cable, a contact press-fit portion 222 press-fitted into the base insulator 1, and a plate-like cable passage portion 22.
3 and a substantially U-shaped U contact portion 224 which is narrower than the cable passage portion 223 and is connected to the core wire of the flat ribbon cable by pressure welding. The U-contact 224 is twisted at an appropriate angle at its base. By twisting the base of the U-contact portion 224 in this manner, the flat ribbon cable 7
The width of the U-contact portion 224 in the direction perpendicular to the extending direction of the base insulator 1 can be reduced, and high-density arrangement of the contacts 22 and 23 with respect to the base insulator 1 becomes possible.
The contact 21 is obtained by removing the cable passage portion 223 of the contact 22.

The contact 23 has the same structure as the contact 22 except that a horizontal connecting portion 235 is provided between the cable passing portion 233 and the contact press-fitting portion 232 as shown in FIG. By providing such a horizontal connection part, the positions of the contact points on the bottom of the base insulator 1 are aligned in substantially one row in a state where the contacts 22 and 23 are pressed into the contact receiving holes 12 and 13 of the base insulator 1 respectively. (See FIGS. 4 (a) to 4 (c) and FIGS. 5 (a) and 5 (b)).

The above two contacts 22 and 2
By providing the cable passing portions 223 and 233 in the connector 3, when the connector of the embodiment is assembled, spaces 10 and 101 through which the flat ribbon cables 7 and 71 can pass or are clamped are formed as described later.

The middle insulator 3 has a hole 31 for accommodating the U-contact portion 214 of the contact 21 and the U-contact portions 224 and 234 of the contacts 22 and 23.
, Respectively, and the lower surface thereof is formed in a wavefront for positioning the flat ribbon cable 7.

The cover insulator 4 includes the contact 2
It has holes 42 and 43 for accommodating 2, 23 U-contact portions 224 and 234, respectively. In addition, both ends of the cover insulator 4 are engaged with the locking projections 14 of the base insulator 1, and the base insulator 1, the middle insulator 3, and the cover insulator 4.
Flat ribbon cable 7, 71 sandwiched between
Is provided with a locking frame piece 44 for holding the frame. The lower surface of the cover insulator 4 is formed in a wavefront for positioning the flat ribbon cable 71.

[0017] The strain relief 5, wrapping the cable 71 is sandwiched between the middleware insulator 3 and the cover insulator 4 on the top surface of the cover insulator 4,
The folded cable 71 is used when the folded cable 71 is sandwiched between the cover insulator 4 to strengthen its holding, and is used together with the lever 6 as necessary. At both ends of the strain relief 5, there are provided locking pieces 51 to be locked in holes 45 of the locking frame pieces 44 of the cover insulator 4.

The lever 6 is rotated (rotated in the direction I in FIG. 4B) to release another connector fitted to the connector of this embodiment.

Next, the procedure for connecting the flat ribbon cables 7 and 71 to the connector of the embodiment having the above configuration will be described. That is, in FIG. 1, the flat ribbon cable 7 is placed on the upper surface of the base insulator 1, and each core wire of the flat ribbon cable 7 is connected to each of the U contact portions 214 of the contact 21 by pressing. At this time, if the flat ribbon cable 7 has a non-interdigitated outer insulating coating layer adhered thereto, at least the portions of the flat ribbon cable 7 that contact the contacts 22 and 23 are removed and one core wire is removed.
Keep this apart. And this apart
Of the contact between the contacts 22 and 23,
Cable between the cable passage sections 223 and 233
Between the U-contact portions 224 and 234,
We pass while fitting in. In this way, the broken part of the core wire
FIG. 6 shows a state where the contacts 22 and 23 are passed through the mutual gap.
Indicated.

Next, the middle insulator 3 is put on the flat ribbon cable 7 pressed against the contact 21 as described above. In this case, the U-contact portions 224 and 234 of the contacts 22 and 23 project from the holes 32 and 33 formed in the middle insulator 3. The flat ribbon cable 7 has a space 10 formed between the base insulator 1 and the middle insulator 3.
(See FIGS. 5 (a) and 5 (b)). Then, another flat ribbon cable 71 is placed thereon, and the respective core wires of the flat ribbon cable 71 are pressed against the U contact portions 224 and 234 of the contacts 22 and 23, respectively.

Thereafter, the flat ribbon cable 71
The cover insulator 4 is put on the. Then, the flat ribbon cable 71 is held in the space 101 formed between the middle insulator 3 and the cover insulator 4. Further, the lever 6 and the strain relief 5 are attached as needed.

The connector of the type having two sets of connection portions with the flat ribbon cable has been described above. However, the connection portions in which the height of the U contact portion, which is a contact press contact portion, is changed to, for example, three steps or four steps are respectively described. By providing, the number of flat ribbon cables that can be connected at the same time is 3
It goes without saying that a connector having more than this number can be obtained.

When the connection portions are formed in three or four stages as described above, a plurality of contacts constituting each connection portion in the second and subsequent connection portions are staggered in the same manner as in the above embodiment. placing may be formed a gap through which connected the core wires of the flat ribbon cable to the connection portion of the first stage to 2-3 stage between a plurality of contacts arranged in these staggered respectively .

[0024]

As described above, according to the present invention, it is possible to provide a connector capable of connecting two or more flat ribbon cables in a dizy chain connection. As a result, for example, it is possible to simplify or reduce wiring between printed boards or between a printed board and various electronic components in an electronic device.

[Brief description of the drawings]

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

FIG. 2 is an enlarged perspective view of a contact portion of the connector of FIG.

3A is a perspective view of one type of contact included in the connector of FIG. 1, and FIG. 3B is a perspective view of another type of contact.

4A is a top view of the connector of FIG. 1 in a state where a base insulator, a middle insulator, a cover insulator, and a lever have been assembled, FIG. 4B is a front view, and FIG. 4C is a bottom view.

5A is a sectional view taken along line AA in FIG. 4A, FIG.
Is a sectional view taken along the line BB of FIG.

FIG. 6 is an explanatory diagram showing a state in which a flat ribbon cable is connected to a contact in the connector of FIG. 1;

FIG. 7 is an explanatory diagram of a conventional connector.

[Explanation of symbols]

A, 30 connector 1 base insulator 3 middle insulator 4 cover insulator 5 strain relief 6 lever 7,71 flat ribbon cable 10, 101 spaces 11-13 contact housing holes 21, 22 and 23 contact 31,32,33,42,45 hole 44 Kakaritomewakuhen 211, 221 and 231 contact the contact portions 212, 222, 232 contact press-fitting portions 223 and 233 cable passage section 214, 224, 234 U contact portion 301 connector body 302 cover body

Claims (3)

(57) [Claims] 1. A connector attached to the middle of a flat ribbon cable, wherein a plurality of contacts connected to respective core wires of the flat ribbon cable are arranged side by side.
The length of the flat ribbon cable
Are arranged in direction, the height of the connecting portion between the flat ribbon cable is different stepwise for each connection unit, the
In the connection part where the connection part is relatively high,
The mutual gap in the juxtaposition direction of the contacts
Is connected to the contact at the relatively low connection point
Of the flat ribbon cable
Connector, characterized by being. 2. The connection according to claim 1, wherein said connection portion is at a relatively high position.
The plurality of contacts in the line portion define the mutual gap.
The connector according to claim 1 , further comprising a plate-like cable passage portion for defining the connector. 3. The connection according to claim 1, wherein said connection portion is located at a relatively high position.
Multiple contacts in the wire section are staggered at their connection
The connector according to claim 1 , wherein the connector is arranged .