JP3000197B2 - FPC multi-row ZIF 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 multi-row FP
The present invention relates to an FPC protection structure of a ZIF (Zero Insertion Force) connector capable of connecting a C (Flexible Printed Circut) with a low operation force.

[0002]

2. Description of the Related Art A contact of a mating connector is
Many connectors for connecting a connection portion (contact) of another substrate using a PC have been developed. For example, a mechanical drive type is disclosed in JP-A-3-30.
No. 273 discloses an electrical connector device, and another example is a modified high-density backplane connector disclosed in Japanese Patent Application Laid-Open No. 3-257775, and another example using a shape memory alloy is disclosed. Is a connector having high density and high signal integrity disclosed in Japanese Patent Application Laid-Open No. 4-501338.

[0003]

However, the FPC
In the case of a ZIF connector using
Since the mating and unmating with the mating connector are performed repeatedly,
In particular, if the FPC is bent at a small curvature, the conductor pattern inside the FPC may be disconnected, which greatly impairs the reliability of the connector.

The present invention has been made to solve such a problem, and a technical problem of the present invention is to provide an FPC multi-row ZIF connector using a flexible FPC as a contact. FPC multi-row Z that does not break due to bending when fitting / removing
An object of the present invention is to provide an IF connector.

[0005]

According to the present invention, an FPC is provided.
And a housing for accommodating one end of the FPC, and fitting the housing to the housing so as to hold the FPC and press the conductive pattern exposed on one surface of the one end of the FPC to the contact of the mating connector during fitting connection. A slider that is reciprocally movable in one direction and is fixed to the other surface of one end of the FPC and is rotatably disposed in the housing, and engages with the slider when the slider moves in the fitting direction. An elastic plate that presses the FPC outward, and the slider has a shoulder that is a part that receives and supports the FPC, and the shoulder is a part of the FPC when not fitted. The elastic plate has a curved surface for keeping the radius of curvature large, the elastic plate has a bent portion for keeping the radius of curvature of the FPC large at the time of fitting, and the housing receives the FPC at the time of fitting. One has a 支受 part is a supporting part, said supporting the receiving part, characterized in that it has a curved surface to keep increasing the curvature radius of the FPC when fitted FPC
A multi-row ZIF connector is obtained.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing a separated state of a ZIF connector and a mating connector according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a fitting state of the ZIF connector and the mating connector shown in FIG. FIG. 3 is a perspective view showing an exploded state of the ZIF connector shown in FIG. 1, FIG. 4 is a perspective view showing an exploded state of the mating connector shown in FIG. 1, and FIG. 5 is an explanation of the ZIF connector shown in FIG. (A) is a plan view,
6B is a front view, FIG. 6C is a side view, and FIG. 6D is a bottom view. FIG. 6 is an enlarged side sectional view of the ZIF connector shown in FIG. 1, and FIG. 7 is connected to the ZIF connector shown in FIG. 8 is an explanatory view of the mating connector shown in FIG. 1, wherein FIG. 8A is a plan view, FIG. 8B is a front view,
9C is a side view, and FIG. 9D is a bottom view. FIG. 9 is an enlarged side sectional view in a state where the mating connector shown in FIG. 1 is connected to the board. FIG. 10 is a diagram showing the mating connector shown in FIG. FIG. 2 is an enlarged side sectional view showing a fitted state with the ZIF connector shown in FIG.

Referring to FIGS. 1 to 10, an FPC multi-row ZIF connector 1 according to an embodiment of the present invention, as is apparent from FIG. It has a slider 30 held, and as shown in FIG.

A conductive pattern is exposed on the surface of one end of the FPC 20, and an elastic plate 21 is fixed to the opposite surface, as is apparent from FIG. Conducted. In the present embodiment, the elastic plate 21 is made of a conductive metal material and also serves as a ground contact. The present invention is not limited to this, and the elastic plate may not be used as the ground contact but may be used as a reinforcing member and a pressing member of the FPC.

A bent portion 21a having an arc-shaped cross section is formed on the upper end edge of the elastic plate 21, and the bent portion 21a serves to push the FPC 20 outward. This bent portion 21a is formed in an arc shape,
When the FPC 20 is bent, the radius of curvature of the FPC 20 is prevented from being reduced, and the conductor pattern of the FPC 20 is prevented from being disconnected. Also, the elastic plate 2
1 is rotatably supported by the housing 10 at both ends in the longitudinal direction, and returns to a predetermined position by its own elasticity. Further, a protruding portion 21b is formed at an intermediate portion in the height direction of the elastic plate 21. This protrusion 21
b is the slider 3 as is apparent from FIGS.
When the slider 0 slides, it is pressed by a cam portion 33 formed on the slider 30 described later, whereby the elastic plate 21 rotates within the housing 10. Therefore, when the slider 30 is pushed down in the fitting direction, the elastic plate 21 rotates by engaging with the slider 30,
At this time, the FPC 20 is pushed outward by the bent portion 21a, whereby the FPC 20 is pressed against the support 19 formed in the housing 10 as described later.

As is clear from FIGS. 3, 5 and 6,
The housing 10 of the ZIF connector 1 is formed of an insulating material into a substantially box shape, and a receiving portion 17 of the mating connector 9 is formed on the bottom surface side. An FPC 2 to which an elastic plate 21 is fixed is attached to the housing 10 in the longitudinal direction.
And a holding groove 11 for holding 0 in an inserted state.
The conductive pattern formed on the surface of the FPC 20 inserted into the holding groove 11 conducts to the terminal portion of the board 101 via the contact 80 of the mating connector 9 when the connector is connected. Similarly, the elastic plate 21 serving as a ground contact is configured to be electrically connected to the ground pattern of the substrate 101 via the ground contact 81 in the mating connector 9.

An elastic plate (ground contact) is provided on the inner surface of the fitting side end of the housing 10 when a connector is connected.
FPC 20 expanded by bent portion 21a of 21
A receiving portion 19 for receiving and supporting the receiving portion is formed in a curved surface, whereby the FPC 20 bends along the receiving portion 19 so that the radius of curvature of the FPC 20 does not become small as is apparent from FIG. Is restricted to Pressing portions 3 provided at both ends in the longitudinal direction of the housing 10 so as to hang down from both ends of a slider 30 described later.
A receiving portion 13 for receiving the lock piece 5 and the lock piece 36 is formed. Also, at both ends in the longitudinal direction of the housing 10,
Base insulator 90 of mating connector 9 described later
A notch 18 is formed to receive the fitting projection 93 formed in the notch 18.

Further, as is apparent from FIG. 6, a lock spring 15 is provided on one side of the accommodating portion 13 of the housing 10 so as to hang down. Further, a locking projection 15b that engages with a locking recess 95 formed on both end faces of the base insulator 90 described later is formed on the inner surface thereof.

A slider 30 housed in the housing 10 and movable in the fitting direction has a pair of FPs loaded in the housing 10 as best seen in FIGS.
A shoulder portion 31 for pushing and spreading C20 outward is formed continuously in the longitudinal direction. On the upper surface side of both ends in the longitudinal direction of the slider 30, the slider 30 projects upward.
A mounting portion 32 for mounting the mounting portion 0 to the substrate 100 is provided.
Are formed. Further, at both ends in the longitudinal direction of the slider 30, a tongue-shaped pressing portion 35 and a lock
Is provided so as to hang down. The shoulder portion 31 is formed in a curved surface so as to keep the radius of curvature of the FPC 20 large when the connector is not connected, in other words, to limit the radius of curvature of the FPC 20 from becoming small.

When the slider 30 is moved toward the mating connector 9 along the mating direction, the pressing portion 35 of the slider 30 comes into press contact with the lock spring 15 of the housing 10 and the locking projection of the housing 10. The portion 15b is engaged with the locking recess 95 of the base insulator 90, and this engagement is locked.

On the upper surface of the slider 30, a retainer 50 for fixing and holding the FPC 20 to the slider 30 is provided.

FIG. 7 shows a board 100 to which the ZIF connector 1 of this embodiment is connected.

The mating connector 9 is shown in FIGS.
As is clear from FIG.
A contact 80 that makes conductive contact with the conductive pattern of the PC 20
And a ground contact 81 that is in conductive contact with the elastic plate (ground contact) 21. The contact 80 and the ground contact 81 are provided in the base insulator 90.
Is fixedly held.

Locking recesses 95 are formed in the vicinity of both ends in the longitudinal direction of the base insulator 90, respectively.
A locking projection 15b of a lock spring 15 formed on the housing 10 is engaged with the locking recess 95. At both ends in the longitudinal direction of the base insulator 90, fitting projections 93 that fit into the notches 18 formed at both ends in the longitudinal direction of the housing 10 are formed.

Next, the connection procedure of the ZIF connector of the present invention will be described.

The ZIF connector 1 of this embodiment is an FPC
In this type, the board 100 to which the connector 20 is connected and the board 101 on which the mating connector 9 is mounted are connected. First, the housing 10 of the ZIF connector 1 is connected to the mating connector 9.
To the base insulator 90. The fitting at this time can be performed with no insertion force. Next, the pressing portion 3 of the slider 30
5 engages the engaging projection 15b with the locking recess 95,
Hold the board 100 and push the board 100 toward the mating connector 9 until the housing 10 is locked by the base insulator 90. At this time, the cam portion 33 of the slider 30 presses the protruding portion 21b of the elastic plate 21. As a result, the elastic plate 21 rotates, and the elastic plate 21
The conductive pattern of C20 presses against the contacts 80, 81 of the mating connector 9, and the substrates 100, 101 are connected to each other. Before and after this fitting, the elastic plate 2
The one bent portion 21a, the shoulder portion 31 of the slider 30, and the support portion 19 of the housing 10 prevent the radius of curvature of the FPC 20 from being reduced.

[0022]

As described above, according to the present invention, FP
C is formed on the FPC without being bent at a small curvature at the time of connection and disconnection of the connector because the C is supported on the arc surface having a large curvature at a contact portion with the slider, the elastic plate, and the housing. The pattern is hard to break,
A long-life ZIF connector can be obtained.

Further, according to the present invention, when the elastic plate fixed to the back surface side of the FPC is used as the ground contact, it has a microstrip line structure, the signal transmission characteristics are improved, and a further high-speed signal can be transmitted. It is possible to transmit.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a separated state of a ZIF connector and a mating connector according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a fitted state of the ZIF connector shown in FIG. 1 and a mating connector.

FIG. 3 is a perspective view showing an exploded state of the ZIF connector shown in FIG. 1;

FIG. 4 is a perspective view showing an exploded state of the mating connector shown in FIG. 1;

FIG. 5 is an explanatory view of the ZIF connector shown in FIG. 1,
(A) is a plan view, (b) is a front view, (c) is a side view,
(D) is a bottom view.

FIG. 6 is an enlarged side sectional view of the ZIF connector shown in FIG. 1;

FIG. 7 is a plan view of a main part of a board connected to the ZIF connector shown in FIG. 1;

FIG. 8 is an explanatory view of the mating connector shown in FIG. 1,
(A) is a plan view, (b) is a front view, (c) is a side view,
(D) is a bottom view.

FIG. 9 is an enlarged side sectional view showing a state where the mating connector shown in FIG. 1 is connected to a board.

10 is an enlarged side cross-sectional view showing a state where the mating connector shown in FIG. 1 is connected to the circuit board and which is fitted to the ZIF connector shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ZIF connector 10 Housing 15 Lock spring 19 Support part 20 FPC 21 Elastic plate (ground contact) 21a Bent part 30 Slider 31 Shoulder part 33 Cam part 35 Pressing part 36 Lock piece 80 Contact 81 Ground contact 100 Substrate 101 Substrate

Claims (1)

(57) [Claims] A housing for accommodating one end of the FPC; and a conductor pattern for holding the FPC and pressing a conductor pattern exposed on one surface of the one end of the FPC at the time of fitting connection to a contact of a mating connector. A slider reciprocally movable in the fitting direction with respect to the housing; and a slider fixed to the other surface of one end of the FPC and rotatably disposed in the housing to move the slider in the fitting direction. And an elastic plate that engages with the slider and presses the FPC. The slider has a shoulder that is a part that receives and supports the FPC. FPC
The elastic plate has a bent portion for keeping the radius of curvature of the FPC large at the time of fitting, and the housing receives and supports the FPC at the time of fitting. An FPC multi-row ZIF connector characterized by having a support portion which is a portion to be formed, and the support portion has a curved surface for keeping a large radius of curvature of the FPC at the time of fitting.