KR20060049350A - Connector for flexible printed circuit - Google Patents

Abstract

A plurality of contacts are assembled in a housing formed of resin. The housing supports an opening / closing cover capable of opening and closing the opening of the internal space into which the FPC is inserted, and has a sunshade-shaped protrusion projecting continuously from the side wall to face the end of the inserted FPC. When the FPC is inserted, at the insertion port, the distance between the FPC and the sunshade projecting portion is shorter than the distance between the FPC and the opening / closing cover.

Description

Connector for Flexible Board {CONNECTOR FOR FLEXIBLE PRINTED CIRCUIT}

1 is a perspective view of a connector which is one embodiment according to the present invention.

It is sectional drawing in the II-II line shown in FIG.

FIG. 3 is a plan view of the FPC seen from the direction of arrow III shown in FIG. 1.

4 is a perspective view of the signal contact shown in FIG. 1.

FIG. 5A is a perspective view of the earth contact shown in FIG. 1 viewed from the inside. FIG.

It is a perspective view which looked at the earth contact shown in FIG. 1 from the outside.

6 is a perspective view of the housing shown in FIG. 1.

FIG. 7 is a perspective view of the opening and closing cover shown in FIG. 1. FIG.

8 is an exploded perspective view of the connector shown in FIG. 1.

9A is a cross-sectional view of a state before connecting an FPC to the connector shown in FIG. 1.

FIG. 9B is a cross-sectional view of a state in which an FPC is connected to the connector shown in FIG. 1. FIG.

<Explanation of symbols for the main parts of the drawings>

1: Connector

2: FPC

3: printed wiring board

11: signal contact

12a, 12b: earth contact

13: housing

13a: opening

13b: internal space

13c: insertion hole

14: opening and closing cover

22: shield member

23: protector

24: Earth connection

25: signal connection

31: Substrate

32, 33: land

61 connection

62: reinforcement

63a, 63b: Press-fit piece

64: fixed tab

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a flexible board connector capable of inserting and removing a flexible board having a plurality of signal lines and connected to a printed wiring board.

In recent years, flexible printed circuits (FPCs), which are flexible printed circuit boards, have been used not only in miniaturized products such as mobile phones or digital cameras but also in large products such as liquid crystal TVs. As a flexible board connector used for connecting such an FPC to a printed wiring board, there are provided a contact (terminal) electrically connected to a signal line, a housing in which the contact is assembled, and an opening / closing cover (actuator) for opening and closing the opening of the housing. It is known to have a flip-flop type provided (see Japanese Patent Laid-Open No. 2002-170641). In such a flexible board connector, the FPC is inserted into the housing while the open / close cover is opened, and the electrical connection between the FPC signal line and the contact is maintained by closing the open / close cover.

However, when assembling or maintaining the product, the FPC connected to the flexible board connector or the operator accidentally catches the FPC may cause the FPC to shake and contact with the opening / closing cover to arbitrarily open the cover. have. When the opening / closing cover is opened, the electrical connection between the signal line and the contact of the FPC becomes unstable, and furthermore, the FPC may fall off the connector for the flexible board. In order to prevent this, the technique which has the suppression bracket provided in the edge part of the insertion side of the FPC which concerns on the connector for flexible boards facing the edge part of the inserted FPC is known (refer Japanese Unexamined-Japanese-Patent No. 3029985). According to this technique, since the shaken FPC first comes into contact with the restraining bracket, it becomes difficult for the FPC to come into contact with the opening and closing cover. This can prevent the opening / closing cover from being arbitrarily opened.

However, in the above technique, when the FPC is inserted, the end of the FPC is damaged by contacting the restraining bracket with the insertion side end of the FPC, or the end of the FPC is damaged when the shaken FPC is in contact with the restraining bracket.

A main object of the present invention is to provide a connector for a flexible substrate, wherein the flexible substrate is less likely to be damaged while preventing the electrical connection to the flexible substrate from becoming unstable or the flexible substrate falling off even if the flexible substrate is shaken.

The flexible board connector of the present invention is a flexible board connector capable of inserting and detaching a flexible board having a plurality of signal lines and connected to a printed wiring board. A housing in which a plurality of contacts are assembled, and an opening and closing cover capable of opening and closing the opening of the internal space are provided. Further, the housing has a sunshade projecting portion that projects continuously from the side wall so as to face at least a portion of the flexible substrate inserted into the internal space. The plurality of contacts and the signal lines of the flexible substrate are electrically connected when the opening / closing cover closes the opening while the flexible substrate is inserted into the internal space. Moreover, when the said flexible board inserted shakes, the said shading protrusion part is a locking piece which latches the said flexible board | substrate.

According to the present invention, when the flexible substrate is shaken, the flexible substrate is in contact with the sunshade projecting portion before the opening / closing cover at the end portion on the side where the flexible substrate is inserted. As a result, even if the flexible substrate is shaken, the flexible substrate can be prevented from strongly opening and closing the opening / closing cover, and the electrical connection between the signal line and the contact of the flexible substrate becomes unstable or the flexible substrate is dropped from the connector for the flexible substrate. It can prevent. In addition, since the sunshade-protrusion is formed of resin, when inserting a flexible board | substrate into a connector for flexible board | substrates, even if the edge part of the insertion side of a flexible board | substrate and a sunshade-shaped protrusion contact, it is hard to damage the edge part of a flexible board | substrate. Moreover, even if the inserted flexible substrate is shaken and the flexible substrate is in contact with the sunshade projecting portion, the flexible substrate is hardly damaged. In addition, since the sunshade projecting portion is integrated with the housing, it is not necessary to increase the number of parts.

In this invention, it is preferable that the attracting part which attracts the said flexible board | substrate is formed in the edge part of the side in which the said flexible board | substrate in the said ridge-shaped protrusion part is inserted. According to this, a flexible board | substrate becomes easy to be inserted by providing the curved-shaped or taper-shaped attracting part in the shading protrusion. In addition, the end portion on the insertion side of the flexible substrate is less likely to be damaged. At this time, since the sunshade projecting part is formed of resin, it becomes easy to form the curved surface and taper of a attracting part large.

Moreover, in this invention, it is preferable to further provide the reinforcement piece extended so that at least one part of the outer wall surface of the side wall which the said shading protrusion in the said housing may protrude may be provided. According to this, since the side wall of a housing is reinforced by a reinforcement piece, when a sunshade protrusion contacts a flexible board | substrate, curving of the side wall of a housing with an sunshade protrusion by the contact pressure with a flexible board | substrate to the outside is suppressed. . As a result, even if the flexible substrate is shaken, the flexible substrate can be prevented from being hard to open and close the cover.

 At this time, it is more preferable that the reinforcing piece also extends along at least a part of the outer wall surface of the sunshade projecting portion. According to this, since the sunshade-protrusion is reinforced by the reinforcement piece, when the sunshade-protrusion is in contact with the flexible substrate, it is further suppressed that the sunshade-protrusion is curved outwardly by the contact pressure with the flexible substrate.

At this time, it is more preferable that the reinforcing piece also extends along at least a part of the inner wall surface from the outer wall surface of the sunshade projecting portion. According to this, since the sunshade-protrusion is further reinforced by the reinforcement piece, when the sunshade-protrusion is in contact with the flexible substrate, it is further suppressed that the sunshade-protrusion is curved outward by the contact pressure with the flexible substrate.

In addition, in this invention, it is preferable that the said opening-closing cover which closes the said opening part and the said sunshade-shaped protrusion part engage | engage. According to this, since the sunshade-protrusion part also serves as the member which fixes an opening-closing cover, the number of components of the connector for flexible board | substrates becomes small, and manufacturing cost of a flexible board | substrate connector can be reduced.

Other and further objects, features and advantages of the present invention will become more fully apparent from the following detailed description taken in conjunction with the accompanying drawings.

<Description of the Preferred Embodiment>

EMBODIMENT OF THE INVENTION Hereinafter, the connector which is a very suitable embodiment which concerns on this invention is demonstrated, referring drawings.

1 is a perspective view of a connector which is a very suitable embodiment according to the present invention. In addition, the arrow A in the figure has shown the insertion direction of the flexible substrate (henceforth an FPC) 2. It is sectional drawing in the II-II line | wire shown in FIG. As shown in FIG. 1 and FIG. 2, the connector 1 is a flexible board | substrate connector which the FPC2 can insert (remove and insert), and is connected to the printed wiring board 3. As shown in FIG.

In addition, the FPC 2 will be described with reference to FIG. 3. 3 is a plan view of the FPC 2 seen from the direction of arrow III shown in FIG. 1. In addition, one surface of the FPC 2 shown in FIG. 3 is called a connection surface. As shown in FIG. 3, the FPC 2 includes a flexible substrate 21 including a plurality of signal lines, a shield member 22, a protective plate 23 (see FIG. 1), and an earth connecting piece 24. Have The flexible substrate 21 is integrally formed by aligning a plurality of signal lines in one direction in the shape of a long flat plate, and is excellent in insulation characteristics or heat resistance of a plurality of signal lines formed by etching copper foil on a base, for example. It consists of a structure sandwiched between coverlays (for example, a polyimide film, etc.). Therefore, the FPC 2 has a high bending performance. In the vicinity of the end portion of the flexible substrate 21, a plurality of signal lines are exposed from the coverlay. The shield member 22 is a conductive member covering the outer circumference of the flexible substrate 21. Therefore, the plurality of signal lines arranged in the flexible substrate 21 are covered by the shield member 22. This can protect the signal line from radiation noise. As shown in FIG. 1, the protective plate 23 is a plate member made of resin that is adhered to a surface on the opposite side of the connection surface in the FPC 2 along the end of the FPC 2. By adhering the protective plate 23, the rigidity of the end of the FPC 2 can be increased. The earth connection piece 24 is a steel plate having a rectangular shape electrically connected to the shield member 22, and is bonded to expose the plurality of signal lines in the vicinity of the end portion of the flexible substrate 21. The exposed portion of the signal line is a signal connection portion 25 that is connected to a plurality of signal contacts 11 described later.

Returning to FIG. 1 and FIG. 2, the printed wiring board 3 adhere | attaches copper foil on the board | substrate 31 which consists of glass epoxy, for example, transfers a circuit to the bonded copper foil, and performs a board | substrate ( 31) a wiring pattern (not shown) is formed. The wiring pattern includes a signal line through which the high frequency signal from the FPC 2 is transmitted or a grounded earth line. On the surface of the printed wiring board 3, the land 32 electrically connected to the signal line and the land 33 electrically connected to the earth line are arranged.

Next, the connector 1 will be described. As shown in Figs. 1 and 2, the connector 1 has a plurality of signal contacts arranged in one direction (left and right directions, hereinafter simply referred to as left and right directions when viewed from the connector 1 toward the FPC 2). (11), the earth contact 12a disposed on the right side of the arrangement direction of the signal contact 11 in the connector 1, the earth contact 12b disposed on the left side of the connector 1, An opening / closing cover (13) assembled with a signal contact (11) and earth contacts (12a, 12b), and an opening / closing cover which is squeezed to the housing (13), and which opens and closes an opening (13a) to be described later. Lock member). As shown in FIG. 1 and FIG. 2, when the opening / closing cover 14 is located at an unlocked position for opening the opening 13a, the FPC 2 is insertable into the housing 13. In addition, when the FPC 2 is inserted into the housing 13 and the opening / closing cover 14 is positioned in the locked position to close the opening 13a, the signal contact 11 contacts the signal connection portion 25 of the FPC. To be electrically connected (see FIGS. 9A and 9B). At this time, the earth contacts 12a and 12b contact the earth connecting pieces 24 of the shield member 22 and are electrically connected. The operation of the connector 1 will be described later in detail.

Next, the signal contact 11 will be described with reference to FIG. 4. 4 is a perspective view of the signal contact 11. As shown in FIG. 4, the signal contact 11 is a metal plate integrally molded, and is electrically connected with the contact main body 50 assembled to the housing 13, and the signal connection part 25 of the FPC2. It has the connection part 51, the hook 52 latched by the opening-closing cover 14, and the lead 53 electrically connected with the land 32 of the printed wiring board 3 by soldering.

The connection part 51 extends while bending from the contact main body 50, and the triangular contact piece 51a is formed in the edge part. Moreover, the connection part 51 has spring property, and the contact piece 51a is displaceable in the direction orthogonal to the plane of the signal contact 11 (refer the arrow in drawing). The hook 52 extends linearly from the contact main body 50 while facing the connecting portion 51, and a hook portion 52a is formed at the end thereof. The lead 53 extends from the contact main body 50 in the direction opposite to the direction in which the connecting portion 51 extends.

Next, the earth contact 12a will be described with reference to FIGS. 5A and 5B. 5A is a perspective view of the earth contact 12a viewed from the inside, and FIG. 5B is a perspective view of the earth contact 12a viewed from the outside. In addition, since it is substantially equivalent to the earth contact 12a except having the shape which inverted the earth contact 12a, detailed description is abbreviate | omitted. As shown in FIG. 5A and FIG. 5B, the earth contact 12b is a metal plate integrally molded, and the connection part electrically connected with the earth connection piece 24 of the FPC2 ( 61, reinforcing portions 62 for reinforcing the sidewalls described later of the housing 13, press-fit pieces 63a and 63b press-fitted into the housing 13, lands 33 of the printed wiring board 3, It has the fixing tab 64 electrically connected by soldering, and the storage part 65 which hold | covers the opening-closing cover 14. As shown in FIG.

The connecting portion 61 is an elastic piece formed by bending a plate-shaped piece. The reinforcement part 62 has the one end part integrated with the one end part of the connection part 61, The flat part 62a extended when it is assembled to the housing 13, and covers a part of the side wall of the housing 13, It has a bending part 62b which is bent in the vertical direction from the end of the flat part 62a and extends to face the connecting part 61. The press-fit piece 63a is integrally extended with the flat part 62a of the reinforcement part 62, and the edge part is formed in the wedge shape. The press-fit piece 63b is integrally extended with the edge part of the connection part 61, and the edge part is formed in the wedge shape. The fixing tab 64 extends downward from one end of the flat portion 62a of the reinforcing portion 62 and then extends in the opposite direction to the direction in which the bent portion 62b extends. The bearing portion 65 is a semicircular cutout that is opened between the planar portion 62a and the press-fit piece 63a in the extending direction of the press-fit piece 63a.

Next, the housing 13 will be described with reference to FIGS. 2 and 6. 6 is a perspective view of the housing 13. The housing 13 is integrally molded with resin such as PPS (polyphenylene sulfide). Moreover, the housing 13 has a substantially rectangular parallelepiped shape as shown to FIG. 2 and FIG. 6, and has the internal space 13b in which the signal contact 11 is arrange | positioned and the opening part 13a was formed in the upper part. At the rear of the internal space 13b, a plurality of support portions 71 to which the contact main body 50 of the signal contact 11 is assembled are arranged in the left and right direction. A plurality of holes 72 through which the hook 52 of the signal contact 11 penetrates are formed in the side wall of the front side which defines the support part 71 so that the support part 71 may correspond. Moreover, in the front of the bottom surface of the internal space 13b, the many groove | channel 73 in which the connection part 51 of the signal contact 11 is arrange | positioned is formed so that the support part 71 may be corresponded.

On the left and right side walls of the housing 13, a pair of sunshade protrusions 75a and 75b protruding inward from the front end are formed. The sunshade projecting portions 75a and 75b protrude from the front of the opening portion 13a to positions facing the left and right ends of the FPC 2 inserted therein. Engaging convex portions 78 are formed at the protruding end portions of the sunshade projecting portions 75a and 75b.

Then, an insertion opening 13C into which the FPC 2 is inserted is formed at the side wall of the housing 13 and the front ends of the sunshade projecting portions 75a and 75b. Moreover, the tapered surface (attracting part) 79 for attracting FPC 2 to the insertion opening 13C is formed in the left and right ends (front end of the side wall inner surface of the housing 13) of the insertion opening 13C. The inserted FPC 2 is attracted to the tapered surface 79. This makes it easier to insert the FPC 2 into the insertion opening 13C. Moreover, the insertion side edge part of the FPC 2 can be protected. In addition, the tapered surface may be formed in the upper and lower ends (the front ends in the bottom surfaces of the housings 13 and the inner surfaces of the sunshade projecting portions 75a, 75b) in the insertion holes 13C. At this time, the tapered surface may be curved. Since the sun-shaped protrusions 75a and 75b are made of resin, it is easy to form such a tapered surface largely.

On the right side wall of the housing 13, a support portion 76a is formed on which the earth contact 12a is assembled, and on the left side wall of the housing 13, a support portion 76b on which the earth contact 12b is assembled is formed. The support part 76a has the notch part 81 formed in the bottom part of the housing 13, and the notch part 82 formed in the side wall of the housing 13. As shown in FIG. The notch 81 has a recess 81a which is formed to face the sunshade projecting portion 75a and a press-fit groove 81b that is formed to be continuous with the recess 81a. have. The connection part 61 of the earth contact 12a is arrange | positioned in the recessed part 81a, and the press-fit piece 63b of the earth contact 12a is press-fitted in the to-be-pressed groove | channel 81b.

The notch 82 is connected to the recess 82a formed from the side wall of the housing 13 to the upper portion of the sunshade projecting portion 75a and to the recess 82a on the side wall of the housing 13. It has a to-be-pressed groove | channel 82b formed so that it may be formed. The reinforcement part 62 of the earth contact 12a is arrange | positioned in the recessed part 82a, and the press piece 63a of the earth contact 12b is press-fitted in the to-be-pressed groove | channel 82b. Since the support part 76b is substantially equivalent to the support part 76a except the point which has the shape which inverted the support part 76a, description is abbreviate | omitted. In addition, the left and right sidewalls of the housing 13 are formed with a holder 77 for holding the opening / closing cover 14 such that the semicircular recess is opened forward.

Next, the opening / closing cover 14 will be described with reference to FIG. 7. As shown in FIG. 7, the opening-closing cover 14 extends along the longitudinal direction of the cover main body 85 which closes the opening part 13a of the housing 13, and is carried out by the housing 13 in the housing 13 A plurality of grooves arranged along the extending direction of the shaft 86 and the ends of the hooks 52 of the signal contacts 11 held on the shaft 86 are arranged; 87 and an engaging convex portion 88 formed on both side surfaces of the cover main body 85 in the longitudinal direction and engaged with the housing 13.

Next, the assembly method of the connector 1 is demonstrated, referring FIG. 2 and FIG. 8 is an exploded perspective view of the connector 1. As shown in FIG. 8, the signal contact 11 is first inserted from the back of the housing 13, and the contact main body 50 of the signal contact 11 is assembled to the support part 71 of the housing 13 (arrow). B). When the contact body 50 of the signal contact 11 is assembled to the support 71 of the housing 13, the hook 52 penetrates through the hole 72 and the connection portion 51 exposes the groove 73. ) Is placed above. At this time, the lid 53 is arranged to protrude behind the housing 13.

Next, the opening / closing cover 14 is inserted from the upper side of the housing 13 so that both ends of the shaft 86 of the opening / closing cover 14 are held by the holding portion 77 of the housing 13 (arrow C). At this time, the intermediate portion of the shaft 86 locks the hook portion 52a of the hook 52 of the signal contact 11 exposed from the hole 72 of the housing 13. The end of the hook portion 52a is disposed in the groove 87 of the opening and closing cover 14.

In addition, the earth contacts 12a and 12b are inserted into the support portions 76a and 76b from the front of the housing 13, and the earth contact 12a is attached to the support portion 76a and the earth contact 12b is attached to the support portion 76b. Assemble each (arrow D). When the earth contacts 12a and 12b are inserted into the supporting portions 76a and 76b, the press-fitted portion of the cutout portion 81 formed with the press-fit piece 63b of the earth contacts 12a and 12b is formed at the bottom of the housing 13. The press piece 63a is press-fitted into the groove 81b, and the press piece 63a is press-fitted into the to-be-pressed groove 82b of the cutout 82 formed in the both side walls of the housing 13. In this way, the earth contacts 12a and 12b are firmly fixed to the housing 13 because they are press-fitted to the side walls and the bottom of the housing 13.

When the press fitting of each press piece 63a, 63b is completed, the connection part 61 of the earth contacts 12a, 12b is arrange | positioned in the recessed part 81a of the cutout part 81, and the reinforcement part 62 is cut off. It is arrange | positioned at the recessed part 82a of the binding part 82. At this time, each connecting portion 61 is disposed to face the sunshade protrusions 75a and 75b, and each reinforcing portion 62 is an outer wall of the sunshade protrusions 75a and 75b from the outer wall surface of the side wall of the housing 13. It is arranged to extend along the face. Moreover, each fixing tab 64 is arrange | positioned at the left and right both sides of the housing 13. As a result, the connector 1 is firmly fixed to the printed wiring board 3.

At this time, the bearing portion 65 of the earth contacts 12a and 12b holds the shaft 86 of the opening / closing cover 14 of the housing 13. That is, the shaft body 86 of the opening-closing cover 14 is clamped so that it may be clamped between the holding part 77 of the housing 13, and the holding part 65 of the earth contacts 12a and 12b. Thereby, the opening / closing cover 14 is rotatable around the shaft 86 as the center axis. When the opening / closing cover 14 is rotated to the locked position to close the opening 13a of the housing 13, the front end of the cover main body 85 of the opening / closing cover 14 protrudes from the sunshade protrusions 75a and 75b. The engagement convex part 88 which is arrange | positioned between the edge parts of the direction, and is formed in the both ends of the cover main body 85 is formed in the edge part of the sunshade-shaped protrusion part 75a, 75b. It enters and engages downward, and the opening / closing cover 14 remains closed. Thus, since the sun-shaped protrusions 75a and 75b also serve as a member for holding the opening / closing cover 14, the number of parts of the connector 1 can be reduced, and the manufacturing cost of the connector 1 can be lowered.

In addition, the distance between the inserted FPC 2 and the sunshade projecting portions 75a and 75b in the insertion opening 13C of the housing 3 is shorter than the distance between the FPC 2 and the closed opening / closing cover 14. have. For this reason, when the FPC 2 is shaken, the FPC 2 contacts the sunshade projecting portions 75a and 75b before the opening and closing cover. In other words, the sunshade projecting portions 75a and 75b serve as locking pieces for locking the FPC 2 when the inserted FPC 2 is shaken. Thereby, even if the FPC 2 is shaken, the FPC 2 can be suppressed from being hard to open the opening / closing cover 14. In addition, the inserted FPC 2 and the car-shaped protrusion 75a are operated from the viewpoint of actuating the sun-shaped protrusions 75a and 75b as locking pieces so that the shaken FPC 2 does not open the opening / closing cover 14 hardly. If the distance of 75b may be equal to the distance between the FPC 2 and the closed opening / closing cover 14, and the shaken FPC 2 does not open the opening / closing cover 14 hardly, the inserted FPC 2 is reversed. And the distance between the sunshade projecting portions 75a and 75b may be longer than the distance between the FPC 2 and the closed opening / closing cover 14.

Next, the operation of the connector 1 will be described with reference to Figs. 9A and 9B. 9A and 9B are views for explaining the operation of the connector 1 when connecting the FPC 2 to the connector 1, and FIG. 9A is a view showing the state before connecting the FPC 2 to the connector 1; 9B is a cross-sectional view of the state in which the FPC 2 is connected to the connector 1, respectively.

As shown in FIG. 1 and FIG. 2, the connector 1 fixes the leads 53 of the signal contacts 11 to the lands 32 of the printed wiring board 3 to the fixing tabs of the earth contacts 12a and 12b. It is used in a state where the 64 is soldered to the lands 33 and electrically connected to each other. 9A, first, the opening / closing cover 14 is rotated to the unlocked position where the opening 13a is opened (arrow E). Then, the end portion of the FPC 2 is inserted into the internal space 13b of the housing 13 from the insertion port 13C (arrow F). When the end portion of the FPC 2 is inserted into the internal space 13b, the signal connecting portion 25 of the inserted FPC 2 and the contact piece 51a of the connecting portion 51 in the signal contact 11 come into contact with each other. Electrically connected. In addition, the inserted FPC 2 is fitted at the connection portions 61 of the sunshade protrusions 75a and 75b and the earth contacts 12a and 12b, whereby the earth connection piece of the connection portion 61 and the FPC 2 ( 24 is in contact and electrically connected. Since the connecting portion 61 is made of an elastic body, the connecting portion 61 is in contact with the earth connecting piece 24 with a predetermined contact pressure. Thereby, the connection part 61 and the earth connection piece 24 contact strongly, and are electrically connected reliably. At this time, the shield member 22 of the FPC 2 is reliably grounded through the lands 12 of the earth contacts 12a and 12b and the printed wiring board 3.

And as shown in FIG. 9B, the opening / closing cover 14 is rotated to the locked position which closes the opening part 13a (arrow G). As a result, the bottom surface of the opening / closing cover 14 presses the protective plate 23 of the FPC 2 inserted into the internal space 13b. Since the connection part 51 of the contact 11 has a spring property, it contacts with signal contact part 25 with predetermined contact pressure, displacing downward. Thereby, the connection part 51 and the signal connection part 25 contact strongly, and both electrical connections are fixed. At this time, the signal line of the FPC 2 is electrically connected to the signal line of the printed wiring board 3 via the signal contact 11 and the land 32 of the printed wiring board 3.

According to the embodiment described above, when the FPC 2 is shaken, the FPC 2 contacts the sunshade projecting portions 75a and 75b before the opening and closing cover 14 in the insertion opening 13C. Thereby, even if the FPC 2 is shaken, it is possible to suppress the FPC 2 from opening the opening and closing cover 14 hardly, and the electrical connection between the signal line and the signal contact of the FPC becomes unstable or the connector 1 The FPC 2 can be prevented from falling off. In addition, since the sunshade protrusions 75a and 75b are formed of resin, the end portion and the sunshade protrusion of the insertion side of the FPC 2 when the FPC 2 is inserted into the insertion opening 13C of the connector 1. Even when 75a and 75b contact, it is hard to damage the edge part of FPC2. Moreover, even if the inserted FPC 2 is shaken and the FPC 2 contacts the sunshade projecting portions 75a and 75b, the FPC 2 is hardly damaged. In addition, since the sunshade protrusions 75a and 75b are integrated with the housing 3, the above-described effects can be realized without increasing the number of parts.

Moreover, since the tapered surface 79 is formed in the edge part of the sunshade protrusion part 75a, 75b in the insertion opening 13C, when inserting the FPC 2 inserted into the insertion opening 13C, FPC2 is inserted. The edge part of () is attracted by the taper surface 79, and it becomes easy to insert the FPC2. In addition, the end portion on the insertion side of the FPC 2 is less likely to be damaged.

Moreover, since each reinforcement part 62 of the earth contacts 12a and 12b is arrange | positioned so that it may extend along the outer wall surface of the sunshade-shaped protrusion part 75a and 75b from the outer wall surface of the side wall of the housing 13, the reinforcement part ( The side wall of the housing 3 is reinforced by 62, and when the FPC 2 is shaken to contact the sunshade protrusions 75a and 75b, the sunshade protrusions 75a and 75b are brought into contact with the FPC 2 by contact pressure. It is possible to suppress the curvature of the side wall of the housing 13 along with the provisional projections 75a and 75b. Thereby, even if the FPC 2 is shaken, it can be reliably prevented that the FPC 2 opens the opening / closing cover 14 hard.

In addition, in this embodiment, although the reinforcement part 62 extends so that it may follow from the outer wall surface of the side wall of the housing 13 to a part of outer wall surfaces of the sunshade-shaped protrusions 75a and 75b, the reinforcement part 62 is It may extend along the entire outer wall surface of the sunshade projecting portions 75a and 75b. Thereby, it can further suppress that the sun-shaped protrusion part 75a, 75b curves outward by the contact pressure with FPC2. Moreover, the reinforcement part 62 may also extend along at least one part of the inner wall surface from the outer wall surfaces of the sunshade-shaped protrusions 75a and 75b. For example, the inner wall surface may be extended from the outer wall surfaces of the sunshade protrusions 75a and 75b to cover the front or the rear, or may extend to cover the entire sunshade protrusions 75a and 75b. This further suppresses the sunshade projecting portions 75a and 75b from bending outward due to the contact pressure with the FPC 2. In addition, when the reinforcement part covers the end side of the sunshade protrusion 75a, 75b, what is necessary is just to form the engagement convex part which engages with the engagement convex part 88 of the opening-closing cover 14 in a reinforcement part. Thereby, the durability of the engagement convex part improves.

Moreover, in this embodiment, the connector 1 may be comprised also with the electroconductive shell which covers the housing 3. At this time, it is preferable that the conductive shell is electrically connected to the earth contacts 12a and 12b. As a result, the strength of the connector 1 is improved and the influence of radiation noise on the connector 1 can be reduced. At this time, it is more preferable that the earth contacts 12a and 12b and the conductive shell are integrally formed. As a result, the strength of the reinforcement part can be improved and the number of parts can be reduced.

As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the above-mentioned embodiment, A various design change is possible in the limit described in a claim. For example, in the above-described embodiment, the sunshade protrusions 75a and 75b protrude so as to face only the end portions of the FPC 2, but the sunshade protrusions also protrude so as to face the vicinity of the center of the FPC 2 as well. It may be done, and both may be connected and it may be united. At this time, the unitary sunshade projecting portion can be contacted over the entire width direction of the inserted FPC 2, and it is possible to reliably prevent the shaken FPC 2 from contacting the opening / closing cover 14. In addition, the strength of the housing is also improved.

In the above-described embodiment, the reinforcement portion 62 extends from the outer wall surface of the side wall of the housing 13 to the outer wall surfaces of the sunshade projecting portions 75a and 75b, but the reinforcement portion 62 is The structure may be extended to the side wall of the housing 13, or may be a structure which does not include the reinforcement part 62. FIG.

Moreover, in embodiment mentioned above, although the connector 1 is a thing of the side type which inserts the FPC 2 parallel with respect to the printed wiring board 3, the FPC 2 is inserted into the printed wiring board 3 It may be of the top type to be inserted perpendicular to the.

In addition, in the above-mentioned embodiment, although the connector 1 has the structure which the FPC 2 can insert or insert, it is not limited to the FPC 2 to become an insertion object. For example, it may be an FFC (Flexible Flat Cable) or another kind of flexible substrate.

While the invention has been described in connection with the specific embodiments described above, it will be apparent that various modifications, modifications and variations will be apparent to those skilled in the art. Accordingly, the preferred embodiments of the present invention described above are intended to be illustrative, not limiting. Various changes may be made without departing from the spirit and scope of the invention as defined in the appended claims.

As described above, the present invention is effective in providing a connector for a flexible substrate, such that the flexible substrate is hardly damaged while preventing the flexible substrate from becoming unstable or falling off of the flexible substrate even when the flexible substrate is shaken. Have and

Claims (6)

A flexible board connector having a plurality of signal lines can be inserted and removed and is connected to a printed wiring board. A plurality of contacts, A housing formed of a resin and assembled with the plurality of contacts in an internal space; It is provided with the opening-closing cover which can open and close the opening part of the said internal space, The housing has a sunshade-shaped protrusion that projects continuously from the sidewall to face at least a portion of the flexible substrate inserted into the inner space, When the opening / closing cover closes the opening while the flexible substrate is inserted into the internal space, the plurality of contacts and the signal lines of the flexible substrate are electrically connected, The said board | substrate-shaped protrusion part becomes a latching piece which latches the said flexible board, when the inserted said flexible board | substrate was shaken. The connector for flexible boards characterized by the above-mentioned. The method of claim 1, A attracting part for guiding the flexible substrate is formed at an end of the side in which the flexible substrate is inserted in the sunshade projecting portion. The method according to claim 1 or 2, And a reinforcing piece extending to cover at least a portion of an outer wall surface of the side wall from which the sunshade projecting portion in the housing protrudes. The method of claim 3, The reinforcing piece further extends along at least a portion of an outer wall surface of the sunshade projecting portion. The method of claim 4, wherein The reinforcing piece further extends along at least a part of an inner wall surface from an outer wall surface of the sunshade projecting portion. The method according to any one of claims 1 to 5, A flexible board connector, characterized in that the opening and closing cover closing the opening and the sunshade projecting portion are engaged.

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