JPS5935976Y2 - Flexible cable connector - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a flexible cable connector used for connecting a flexible cable and a board.

In terms of device configuration, it is necessary to connect conductive wires of cables led out from various devices to respective conductor portions of the Pnonto board, and to transmit respective signals using the conductive wires of the cables.

In this case, in order to smoothly and reliably connect the cable and the printer I/board, a connector that allows the cable to be attached and detached is used as the cable terminal connection means.

FIG. 1 shows the structure of this type of connector, in which a storage chamber 13 is formed in a housing 14 of the connector so that a curved strip-like contact I.12 having spring properties is attached thereto.

The contacts 12 are housed in the housing chamber 13 of the housing 14 .

A terminal formed integrally with the contact 12 is located in the housing 1.
This terminal protruding from 4 to the outside is configured to be fixable to the substrate 11.

The housing 14 is formed into a substantially rectangular parallelepiped shape, and its substrate 11
The end surface on the side that comes into contact with is an open surface, and the contact 12 is inserted into the housing 14 from this open surface, and the contact 12 is inserted into the housing chamber 1.
3 and is attached to the housing 14.

This contact 12 is connected to a mounting hole 15 provided in the substrate 11.
is attached to the substrate 11 at almost right angles through the substrate 1.
The end portion passing through the substrate 1 is attached to the substrate 1 by means of soldering, for example.
It is possible to connect to a predetermined conductor portion of 1.

The contact 12 formed of a band-shaped conductive material is bent at a substantially right angle so as to be parallel to the substrate 11 near the sunrise on the substrate 11 side of the storage chamber 13 of the housing 14, and after forming the contact surface 16 in this portion. It again extends perpendicular to the substrate 11.

This contact 12 is bent approximately 180 degrees near the exit of the storage chamber 13 on the opposite side from the substrate 11, and a bent portion 2 is formed there.
4 is formed, and the end of its extended tip portion is bent into a smooth curve to form a contact portion 25.

Further, when the contact 12 is installed in the storage chamber 13 of the housing 14, the width of the contact 12 at the tip of the bent portion 24, which is not located within the guide groove 18-1.112, is made smaller than the other portion.

A joint surface 1 that faces a contact surface 16 formed on the contact 12 when the housing 14 is in complete contact with the substrate 11
7 is formed within the storage chamber 13.

In addition, guide grooves 18-1 and 18-2, which guide the portion of the contact 12 extending perpendicularly to the substrate 11 and position the contact 12 within the storage chamber 13, are located at the knees parallel to the paper surface of the storage chamber 13. It is formed on the inner surface.

The contact I located in this guide groove 18-118-2
The contact 12 is placed in the guide groove 18-1.18 in the part marked 12.
- A plurality of meandering parts 19 to stably raise the height within 2.
-1.19-2 units are provided.

This meandering portion 191.19-2 is the guide groove 18-1.18-
The contacts I and 12 are stably positioned in the guide grooves 18-1 and 18-2 by pressing the contacts 12 against the walls of the guide grooves 18-1 and 18-2.

The cable 2 to be inserted is located in the storage chamber 13 of the housing 14 at a position facing the contact portion 25 of the contactor I.12.
The support surface 21 of the housing 14 is extended to the end surface of the housing 14 opposite to the substrate 11, and an insertion/removal port 22 for the cable 23 is formed there.

The insertion/removal port 22 is expanded in width in the direction of the end surface of the housing 14 opposite to the substrate 11 and has a tapered portion so that the cable 23 can be easily inserted into the storage chamber 13 of the housing 14 .

Also, a stop surface 2 that determines the stop position of the inserted cable 23
8 is formed within the storage chamber 13.

The contact 12 is inserted into the storage chamber 13 of the housing 14 from the open side of the housing 14 so as to cover the contact 12 whose terminal is protruded from the housing 14 and can be attached to a board.

Since the width of the contact I.12 at the tip end of the bending part 24 is narrower than other parts, the guide grooves 18-1, 1
It is inserted into the storage chamber 13 without being fitted into the storage chamber 82.

Since the width of the contact 12 becomes wider on the side closer to the board 11 than the bent part 24, the portion of the contact I/12 located perpendicular to the board 11 is guided by the guide grooves 18-1 and 18-2 and inserted into the storage chamber 13. be done.

In this way, the contact 1 is completely inserted into the housing 14.
2 is inserted, the contact surface 16 of the contact 12
and the joint surface 17 of the storage chamber 13 are in full contact with each other, and the contact portion 25 at the tip of the contact 12 is in contact with the support surface 21 of the cable 23 inserted into the storage chamber 13.

In the storage chamber 13, the contacts 1 and 12 are bent approximately 180 degrees at the bent portion 24, so that the contacts 12 are given spring properties.

Therefore, a biasing force is applied to the contact portion 25 in the direction of pressing the support surface 21 of the storage chamber 13.

The insulating coating 26 at the tip of the insertion portion of the cable 23 is removed to expose the conductor 27 of this portion, and the cable 23 processed in this way is inserted into the housing 1 from the conductor 27 portion.
It is inserted into the storage chamber 13 through the insertion/removal port 22 of No. 4.

The exposed conductor 27 at the tip of the cable 23 is connected to the support surface 21
and the contact portion 25 of the contact 12 against the biasing force of the spring of the contact 12, and the stop surface 28 of the storage chamber 13
The cable 23 is inserted to the position where the tip of the cable 23 reaches, and the conductor 27 of the cable 23 is elastically held between the support surface 21 and the contact portion 25.

In this state, the conductor 27 of the cable 23 and the contact portion 25 of the contact 12 are brought into contact.

Since the end of the contactor I・12 inside the board 11 is connected to a predetermined conductor part within the board 11, the cable 23 is connected to the predetermined conductor part inside the base plate 11 via the housing 14. Become.

To disconnect the cable 23, the cable 23 can be pulled out through the insertion/removal port 22.

In this conventional connector, when the cable 23 attached to the housing 14 is a flexible cable, it is difficult to insert the cable 23 between the support surface 21 and the contact part 25 against the biasing force of the contact part 25. It is difficult to get it to work.

That is, the cable 23 is often bent and cannot be inserted between the support surface 21 and the contact part 25 against the biasing force of the contact part 25.

Therefore, it is necessary to attach an insulating reinforcing plate 29 to the support surface 21 side of the conductor 27 of the cable 23 to facilitate insertion of the cable 23.

Furthermore, when using a flexible cable, even if it is possible to insert it without using the insulation reinforcing plate 29,
In the installed state, the contact portion of the cable with the contact portion 25 is likely to be bent or contact with the cable while being bent, resulting in incomplete contact due to so-called buckling.

For this purpose as well, it is necessary to use the insulating reinforcing plate 29, which complicates handling of the device and is disadvantageous in terms of manufacturing cost.

The flexible cable connector devised by (7) solves the problems with conventional connectors and provides a connector that allows flexible cables to be reliably and easily attached without using an insulation reinforcing plate. It is something to do.

A curved strip contact having spring properties is housed in the housing, and a terminal formed integrally with the strip contact can be fixed to a board, and a cable inserted into the housing through the cable insertion/removal port of the housing can be connected to the contact. The invention is based on a connector of the type that presses into contact with the supporting surface of the cable in the housing by means of the connector.

That is, in this invention, in this conventional connector, a protrusion is disposed to protrude from the cable support surface, and the contacts and the housing are configured to be relatively movable in parallel to the cable insertion/removal direction.

Therefore, when the flexible cable contact I of this invention and the housing are moved relative to each other, the contact portion is moved away from the cable support surface by the protrusion due to the one-way movement.

By bringing the contact portion into contact with and detaching from the support surface, this invention makes it possible to reliably attach and detach the flexible cable with a simple operation.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The flexible cable connector of this invention will be described in detail below based on its embodiments with reference to the drawings.

2 to 6 are diagrams showing the structure of an embodiment of the flexible cable connector of this invention, and the same parts as shown in FIG. 1 are denoted by the same reference numerals.

As shown in Figs. 2 and 6, the flexible cable connector of this invention is usually used for flexible cables in which a plurality of conducting wires are enclosed, so a plurality of storage chambers are formed in the housing. In the following explanation, one of the storage chamber portions will be explained.

Figures 3 and 4 show an embodiment of the flexible cable connector of this invention when the cable is not attached and when the cable is attached. The structure is such that it does not contact the inner surface 30 of the chamber 13, and a first stopper 31 is provided on the inner surface 30, and a second stopper 31 is provided on the contact 12 at a position opposite to the first stopper 31. - A collar 32 is provided.

Also, the support surface 21- of the inserted cable 23 in the storage chamber 13
4- is provided with protrusions 33-1 and 33-2, and the housing 14 and the contact 12 are configured to be relatively movable substantially parallel to the direction of insertion and removal of the cable 23.

That is, in FIGS. 3 and 4, the housing chamber 13 of the contact 12 formed in the housing 14 is provided with an inner side surface 34-1, 34-2, which is parallel to the plane of the drawing, at a right angle to the substrate 11. The inner surface 34-1.3 on which the guide groove 18-1.18-2 is formed.
Substrate 1 on the inner surface 30 of the storage chamber 13 near the side end of 4-2
A first stopper 31 having a substantially rectangular parallelepiped shape is provided on the first side.

A second stopper 32 is formed on the inner surface 30 side of the contact 12 opposite to the first stopper 31 .

For example, as shown in FIG. 5, this second stopper 32 has a U-shaped notch formed in a part of the contact 12.
The tongue piece inside this notch is cut and raised to form a second stopper 32, and its end surface on the substrate 11 side is brought into contact with the first stopper 31 formed on the inner surface 30.

A protrusion 3 is provided on the support surface 2n- of the storage chamber 13 on which the cable 23 inserted into the housing 14 from the insertion/removal port 22 is supported.
3-1.33-2 is provided.

That is, in this embodiment, on the open surface side of the housing 14 located on the substrate 11 side, on the support surface 21 of the cable 23 of the storage chamber 13 of the housing 14, there is a block-shaped protrusion 33-1 whose end face of the substrate 11 is rectangular; 33-2 is provided parallel to the substrate 11 in a right angle direction.

The block-shaped projections 33-1 and 33-2 have storage chambers 13
A surface is formed parallel to the support surface 21 by a predetermined distance in the direction of the insertion/ejection port 22, and the cross section of this parallel surface is narrowed from the end on the insertion/ejection port 22 side, and the end thereof is on the support surface 21. A slope that is concentrated at one point and is continuous with the support surface 21 is formed in this part.

Also, the mutual spacing between the protrusions 33-1 and 33-2 is 2 for insertion/removal.
The width is set slightly wider than the width of the exposed conductor 27 of the cable 23 inserted from 2.

In the embodiment shown in FIGS. 3 and 4, in order to attach the cable, as shown in FIG. 3, the housing 14 is separated from the board 11 and the first and second stoppers 31.
32 are kept in contact with each other.

Next, the insulation coating 26 at the tip of the cable 23 is removed to expose the conductor 27 at that portion.

The cable 23 with the conductor 27 exposed at the tip thereof is inserted into the storage chamber 13 from the insertion/removal port 22 of the housing 14.

The interval between the projections 33-1 and 33-2 is set to be slightly wider than the width of the exposed conductor 27 of the cable 23, and the storage chamber 1 of the insertion/removal port 22 into which the cable 23 is inserted on that surface.
The difference in level between the plane 35 in the inner surface 3 and the support surface 21 is set to be approximately equal to the thickness of one side of the insulation coating 26.

Therefore, the exposed conductor 27 at the tip of the cable 23 is smoothly inserted between the protrusions 33-1 and 33-2 on the support surface 21''.

In this state, the housing 14 is pressed toward the substrate 11 so that the periphery of the open side of the housing 14 is brought into full contact with the substrate 11.

At the position where the housing 14 and the board 11 are in contact, the contact surface 16 of the contactor I and the joint surface 17 formed in the storage chamber 13 come into contact with each other, and the housing 14 and the board 11 are in a stable state. Contact.

With this operation, the contact between the first stopper 31 and the second stopper 32 is released, and the first stopper 31 is attached to the substrate 1.
Move in one direction.

At the same time, the contact portion 25 of the contactor I.
It moves in two directions, slides down its slope and is located on the exposed conductor 27 of the cable 23, which is inserted onto the support surface 21.

Therefore, the spring biasing force of the contact 12 causes the conductor 27 of the cable 23 to
It is held elastically between 5 and 5.

Since the contact 12 is connected to a predetermined conductor part of the board 11 at the end of the board 11, in this state, the conductor 27 of the cable 23 and the predetermined conductor part in the board 11 are connected through the contact 12. will be connected.

To uninstall the cable 23, attach the housing 14 to the board 1.
1, the housing 14 moves away from the substrate 11 to a position where the first stopper 31 and the second stopper 32 contact each other, and the contact portion 25 of the contact 12 becomes a conductor. 27 and changes its position from above the conductor 27 of the cable 23 on the support surface 21 to above the protrusion 33-1, 33-2.

Therefore, the conductor 27 of the cable 23 is connected to the support surface 21 and the contact area 2
The elastic holding by the contacts 12 between the cables 23 and 5 is released, and the cable 23 can be easily pulled out from the insertion/removal port 22.

As shown in FIGS. 5 and 6, the substrate 1 of the contact 12
Contact 12 is conveniently connected to the conductor part in 1.
A pointed piece 36 is provided at the end of the substrate 12 side, and the contact I
- It is preferable that a stepped portion 37 for determining the insertion position of the base plate 12 is provided on the pointed piece 36, and this stepped portion 37 is engaged and fixed to the periphery of the insertion opening of the base plate 12.

As explained in detail above, according to the flexible cable connector of this invention, there is no need to use an insulating reinforcing plate when connecting flexible cables, and defective connections due to bending of the cables do not occur, ensuring reliable connection. Cable connections can be made.

Furthermore, the cable can be connected reliably and quickly with a simple push-in operation, and a flexible cable connector with a simple and strong structure can be provided.

Note that this invention is not limited to the structure described in the embodiments; for example, the housing may be moved parallel to the board to attach or detach the cable.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing a conventionally used connector and a cable to be inserted, Fig. 2 is a top view showing a flexible cable connector of the present invention, and Figs. FIG. 3 is a diagram illustrating an embodiment of the flexible cable connector of this invention. 11: Board, 12: Connector, 13: Storage chamber, 14: Housing, 18-1.18-2: Guide groove, 21: Support surface, 31: First stopper, 32: Second stopper 33-1. 33-2: Protrusion.

Claims (1)

[Scope of utility model registration request] A curved and springy band-shaped contact is housed in a housing, and a terminal is formed integrally with the contact and protrudes from the housing to the outside so that the terminal can be fixed to a board, and is inserted through the cable insertion/removal port of the housing. In the connector, the cable inserted into the housing is pressed into contact with the support surface of the cable in the housing by the contact portion of the contact, and a protrusion is provided protruding from the support surface, and the contact and the The connecting member is movable relatively in parallel with the cable insertion/removal direction, and when the relative movement is performed in one direction, the contact portion is moved away from the support surface by the protrusion. A flexible cable connector consisting of: