JP4017170B2 - Flexible wiring board connector - Google Patents

Description

  The present invention relates to a connector that is electrically connected to a flexible wiring board, and more particularly, to a connector that can be connected to a flexible wiring board that has a lead pattern with a narrow pitch on both sides and can be electrically connected on both sides. .

In a flexible wiring board, the lead pattern to be connected to the connector is required to have a narrow pitch.
In the conventional flexible wiring board, as shown in FIG. 9, the lead pattern is provided on one side, provided in a staggered pattern, and has a pitch of substantially 0.3 mm. In the flexible wiring board, a predetermined amount of the area of the contact contact portion that comes into contact with the contact of the lead pattern is required. Therefore, in order to set the pitch to 0.3 mm, it is arranged in a staggered manner for arranging on one side.

On the other hand, a lead pattern having a pitch of 0.4 mm was provided on both surfaces of the flexible wiring board, and the pitch was substantially 0.2 mm. Furthermore, as shown in FIG. 10, there are cases in which the lead pattern penetrates from the back surface side to the front surface side to form two rows, which is substantially 0.2 mm.
And all had the connector which can be connected with the flexible wiring board by which the contact contact part was provided in the single side | surface.

  As a connector that can be used for a flexible wiring board that is provided with a lead pattern with a pitch of 0.4 mm on both surfaces and is in contact with the contact of the connector on each surface, a connector for connecting a flexible wiring board (Japanese Patent Laid-Open No. 2003-59560) Hereinafter referred to as Conventional Example 1).

This conventional example 1
“(Claim 1) The insulating housing (103) in which the insertion opening (107) for inserting the flexible wiring board (100) is recessed and the insulating housing (103) are parallel to each other with a predetermined insulating gap. A pressure receiving piece (105c) facing the insertion opening (107) is integrally formed with a support portion (105a) attached to the insulating housing (103), leaving a gap for inserting the flexible wiring board (100) in a free state. A large number of cantilevered contacts (105) can be moved back and forth in the insulating housing (103) between a retracted position pulled out from the insertion opening (107) and an advanced position inserted into the insertion opening (107). At the retracted position, a gap for inserting the flexible wiring board (100) into the insertion opening (107) is secured, and at the advanced position, the flexible wiring board (100) is inserted. A slider (104) that presses the kibble wiring board (100) against the pressure receiving piece (105c) of the contact (105), and each contact (105) is cantilevered integrally with the base end side of the pressure receiving piece (105c). The slider (104) has a contact piece (105b) that faces the insertion opening (107) from the inner wall surface facing the pressure receiving piece (105c), leaving a gap in which the flexible wiring board (100) is inserted in a supported state. ), The contact piece (105b) protrudes into the insertion opening (107) in conjunction with the pressure receiving piece (105c) that rotates in the direction retracted from the insertion opening (107). 107) A flexible wiring board connection characterized by elastic contact with the corresponding lead pattern (102) on the surface side of the flexible wiring board (100) inserted in 107) Connector. ]

In the present invention, it is assumed that the connector is represented as a connector that can be connected to flexible wiring boards provided on both sides.

“(Claim 4) Insulating from the contact (105), the back contact (106) is attached to the insulating housing (103), and the back contact piece (106b) supported by the cantilever of the back contact (106) is free. In the state, leaving a gap for inserting the flexible wiring board (102), facing the insertion opening (107) on the retracted position side of the part where the pressure receiving piece (105c) faces, and at the advance position of the slider (104), the pressure receiving piece (105c) ) Is elastically contacted with the insulating coating portion (115) on the back side of the flexible wiring board (102) to which the contact piece (105b) is elastically contacted, and the back contact piece (106b) is placed on the back surface of the flexible wiring board (102). The flexible wiring board connector according to claim 1, wherein the lead pattern (114) exposed to the side is elastically contacted. . Is represented.

That is, in the connector that can be connected to the printed pattern provided on both surfaces of the flexible wiring board of Conventional Example 1, the insertion opening 107 into which the flexible wiring board 100 can be inserted is opened in the insulating housing 103 as shown in FIG. To form a recess. One of the insertion openings 107 is formed in a horizontally long slit shape so that the connection portion of the flexible wiring board 100 can be inserted.
The insertion opening 107 of the insulating housing 103 is provided with a slider 104 that can be inserted into the recess of the insulating housing 103.
In the insertion opening 107, a plurality of contacts 105 are fixed in parallel at a predetermined interval on the side opposite to the opening, and a plurality of back contacts 106 are similarly fixed in parallel at a predetermined interval on the opening side. .

The contact 105 forms a support portion 105 a that is fixed to the insulating housing 103. Further, the contact 105 has a pressure receiving piece 105c at the distal end of the insertion opening 107, is opposed to the pressure receiving piece 105c, and a contact piece 105b is formed on the back side of the insertion opening 107 from the pressure receiving piece 105c. In the contact 105, the contact piece 105 b comes into contact with the lead pattern 102 formed at the top end of the upper surface of the flexible wiring board 102 inserted from the insertion opening 107. Further, the pressure receiving piece 105c formed oppositely is inserted into the insertion opening 107, and the lead pattern 102 portion is sandwiched between the slider 104 and the advanced position.
Further, the base of the contact 6 is fixed to the insertion opening 107 side of the insulating housing 103 from the contact 105 and to the pressure receiving piece 105c. The front end side that is cantilevered forms a flat contact piece 106b. Then, the slider 104 comes into contact with the lead pattern 114 of the flexible wiring board 100 inserted between the slider 104 and the slider 104 in the state where the slider 104 is inserted into the insertion opening 107 and takes the forward position.

Thus, the land portion 113a of the lead pattern 102 provided on the front surface side of the flexible wiring board 100 is electrically connected by contacting the contact piece 105b of the contact 105, and the lead pattern 114 provided on the back surface side thereof. The land portion 114a is electrically connected by being in contact with the contact piece 106b of the contact 106.
JP 2003-59560 A

However, the lead pattern pitch is becoming narrower as technology advances, and there is a lead pattern with a substantially 0.15 mm pitch in which the 0.3 mm pitch lead pattern shown in FIG. 9 is applied to both surfaces of the flexible wiring board.
There has been no connector for connecting a flexible wiring board that can handle a pitch of 0.15 mm.
Accordingly, an object of the present invention is to provide a connector that can be used for a flexible wiring board with a pitch of 0.15 mm.

  In order to provide a connector that can be connected to a 0.15 mm pitch flexible wiring board, which is the above problem,

An insulating housing in which an insertion chamber into which a flexible wiring board is inserted is formed in a recessed manner, and one of the opened chambers forms an insertion opening;
It is attached to one inner surface of the insertion chamber so as to be parallel to each other with a predetermined insulating gap, and forms a first connection fixing portion whose base end is exposed to the outside of the insulating housing, and the other end is located at the insertion opening side as a free end. A first contact that forms a first contact portion that can contact the lead pattern of the flexible wiring board;
It is attached to one inner surface of the insertion chamber so as to be parallel to each other with a predetermined insulating gap, and a second connection fixing portion is formed whose base end is exposed to the outside of the insulating housing, and the other end is inserted from the first contact as a free end. A second contact that forms a second contact portion that is located on the back side of the chamber and can contact the lead pattern of the flexible wiring board;
A third connection fixing portion is formed on the inner surface opposite to the inner surface provided with the first contact and the second contact so as to be parallel to each other with a predetermined insulating gap, and the base end is exposed to the outside of the insulating housing. A third contact which forms a third contact portion whose end is positioned as a free end and which can be brought into contact with the lead pattern of the flexible wiring board via a slider;
Mounted on the inner surface opposite to the inner surface provided with the first contact and the second contact so as to be parallel to each other with a predetermined insulating gap, the base end forms a fourth connection fixing portion exposed to the outside of the insulating housing. The end forms a free end that can swing with a spring force, and one of the free ends forms a fourth contact portion that is located on the back side of the insertion chamber from the third contact and can contact the lead pattern of the flexible wiring board. The other end of the free end is positioned toward the insertion opening and forms a swinging end that is pressed by the slider, and the swinging end is pressed by the slider so that the fourth contact portion becomes the lead pattern of the flexible wiring board. A fourth contact to be in press contact;
It consists of a plate-like body and is provided so as to be able to move forward and backward into the insertion chamber. The flexible wiring board can be fixed to the insulating housing at the forward position inserted into the insertion chamber, and a gap through which the flexible wiring board can be inserted into the insertion chamber at the backward position. A slider that provides a contact piece so as to make the front and back surfaces of the plate-like body conductive at a position facing the third contact portion of the third contact;
A connector for connecting a flexible wiring board, characterized by comprising:

I will provide a. Therefore, in the flexible wiring board connector, the flexible wiring board inserted into the insertion chamber from the insertion opening of the insulating housing is fixed to the insulating housing by the slider.
At this time, in the first contact, the first contact portion formed as a free end is pressed and contacted with the lead pattern of the flexible wiring board pressed by the slider, and is electrically contacted with the flexible wiring board.

In the third contact, the third contact portion, which is the free end of the third contact, contacts the back side of the contact piece provided on the slider. On the other hand, the surface side of the slider is in contact with the substrate while pressing the flexible wiring substrate, so that the surface side of the contact piece in contact with the third contact portion is in contact with the lead pattern of the flexible wiring substrate. For this reason, the third contact is brought into conduction with the flexible wiring board via the slider.
Furthermore, in the second contact and the fourth contact, when the slider is inserted into the advanced position, the swing end, which is one of the free ends of the fourth contact, swings toward the side of the side wall where the fourth contact is attached by the slider. Moved. Then, the 4th contact part which is the other free end is rock | fluctuated to the side opposite to this side wall, ie, a 2nd contact side, and a 4th contact part is pressed by the pattern of a flexible wiring board. At this time, since the second contact portion of the second contact is on the opposite side of the fourth contact portion across the flexible wiring board, the second contact portion of the second contact and the fourth contact portion of the fourth contact are flexible. It will press-contact with the lead pattern of a wiring board.

  As described above, according to the present invention, the flexible wiring board connector can be connected to the flexible wiring board in which the first to fourth contacts are provided with the lead patterns provided in two rows on the front and back surfaces, respectively. Therefore, the lead pattern of 0.3mm pitch provided in two rows in a staggered pattern can be connected to the lead pattern of the flexible wiring board provided on the front and back surfaces so that it can be electrically connected. Connectable to the board.

  In the connector for connecting a flexible wiring board with a pitch of 0.15 mm, the insulating housing is formed in a rectangular shape and opens in a slit shape with at least one of the insertion openings as an insertion opening. Further, a flat space portion is formed as an insertion chamber inside the insertion opening of the insulating housing so as to follow the insertion opening. Then, the flexible wiring board is inserted from the insertion opening into the insertion chamber back side.

  The first contact is fixed by projecting the base end portion to the outside on the side opposite to the insertion opening of the insulating housing. The base end portion forms a first connection fixing portion that electrically connects the electronic component or the like and the flexible wiring board connector. On the other hand, the other end is provided in a U-shaped bowl with the upper side elongated. The hook-shaped upper piece constitutes the first contact portion and is provided on the insertion opening side, and is formed so as to be swingable with a spring force toward the upper surface side of the insulating housing. And the front-end | tip of a 1st contact part is protruded to the lower surface side, and it enables it to contact the lead pattern provided in the surface of the flexible wiring board. Moreover, the lower piece of the bowl shape is fixed to the insulating housing.

  The second contact is juxtaposed with the first contact. The second contact is fixed by projecting the base end portion outside the side opposite to the insertion opening of the insulating housing. The base end portion forms a second connection fixing portion that electrically connects the electronic component or the like and the flexible wiring board connector. On the other hand, the other end is provided in the shape of a U-shape with the upper side elongated, and is formed shorter than the same portion of the first contact. The second contact is installed in the insulating housing in the same manner as the first contact. Therefore, in the second contact, the hook-shaped upper piece, which is the other end, is located on the back side of the insertion chamber from the first contact portion of the first contact to form the second contact portion, and the spring is moved to the upper surface side of the insulating housing. It can swing with force. Then, the tip of the second contact portion is protruded to the lower surface side so that it can come into contact with a lead pattern provided on the surface of the flexible wiring board. Also, the lower piece of the bowl shape is fixed to the insulating housing like the first contact.

  The first contact and the second contact configured as described above are fixedly arranged in parallel in the insulating housing on the upper surface of the insertion chamber alternately at a pitch of 0.3 mm and in a direction perpendicular to the substrate insertion direction. Therefore, in the first contact and the second contact, the first connection fixing portion and the second connection fixing portion are alternately arranged in a state of protruding to the outside of the rear end side of the insulating housing. The first contact portion is on the insertion opening side, and the second contact portion is on the insertion chamber back side, and the contact portions are alternately arranged.

  The third contact is fixed by projecting the base end portion outside the lower surface of the insulating housing on the insertion opening side. The base end portion forms a third connection fixing portion that electrically connects the electronic component or the like and the flexible wiring board connector. On the other hand, the other end is bent in an L shape from the base end portion to form a third contact portion, and is positioned so as to face the insertion opening side of the insulating housing and the first connection portion of the first contact. The tip of the third contact portion protrudes upward, is provided so as to be contactable via a lead pattern on the lower surface side of the flexible wiring board and a slider, and is formed to be swingable with a spring force toward the lower surface side of the insulating housing.

  The fourth contact is juxtaposed with the third contact. The fourth contact is fixed by causing the base end portion to protrude outside the lower surface of the insertion opening of the insulating housing. The base end portion forms a fourth connection fixing portion that electrically connects the electronic component or the like and the flexible wiring board connector. On the other hand, the other end extends in a T shape from the base end portion and constitutes a free end that can be swung with a spring force. One end of the free end constitutes a swing end and is located on the insertion opening side of the insulating housing, like the third contact portion of the third contact. The tip of the swing end is provided so as to protrude upward. The other end of the free end forms a fourth contact portion and is provided at a position facing the second contact portion of the second contact, and its tip protrudes to the second contact portion facing side, that is, the upper side. It is possible to contact the lead pattern provided on the back surface. In the fourth contact configured as described above, when the swing end portion constituting the free end is pressed by the slider and moved downward, the entire free end swings and is the other end provided in a T shape. 4 contact part is moved upward. Accordingly, the fourth contact portion is pressed against the back surface side of the flexible wiring board in a state where the flexible wiring board is inserted into the insertion chamber. It will be.

  The third contact and the fourth contact configured as described above are fixedly arranged in parallel in the insulating housing on the lower surface of the insertion chamber alternately at a pitch of 0.3 mm and in a direction perpendicular to the substrate insertion direction. Accordingly, in the third contact and the fourth contact, the third connection fixing portion and the fourth connection fixing portion are alternately arranged in a state of protruding to the outside of the rear end side of the insulating housing. The three contact portions become the insertion opening side, and the fourth contact portion becomes the insertion chamber back side, and are in a state of being alternately arranged. At this time, the third contact portion of the third contact faces the first connection portion of the first contact, and the fourth contact portion of the fourth contact faces the second contact portion of the second contact. When pressed against the substrate, a pressing force acts in such a direction as to sandwich the flexible wiring substrate, and the contact with the lead pattern becomes even stronger and a good contact state can be obtained.

  The slider is configured by providing a base portion formed larger than the insertion opening shape so that one end cannot enter the insertion opening, and providing a pressing plate extending from the base so as to be inserted into the insertion opening. The slider allows the pressing plate to move back and forth in the insertion chamber from the insertion opening, and in the retracted position, ensures a gap in which the flexible wiring board can be inserted into the insertion opening of the insulating housing. In the forward position, the flexible wiring board inserted from the insertion opening to the back of the insertion chamber can be clamped between the insertion chamber wall surface. The slider pressing plate is provided with contact pieces on the front and back surfaces of the pressing plate in the insertion direction at a position facing the third contact portion of the third contact when inserted into the insertion chamber. Accordingly, the contact pieces are provided in parallel at a pitch of 0.6 mm so as to be opposed to the third contact portion. Since this contact piece is provided so that the front and back surfaces of the pressing plate are in a conductive state, when the third contact portion comes into contact with the back surface side, it is in a conductive state up to the front surface side. Furthermore, a protrusion is provided on the pressing plate surface at a position opposite to the first connection portion of the first contact when the forward position is taken. By providing the protrusions in this manner, it is possible to make a good contact state with the lead pattern provided on the back surface of the flexible wiring board as in the first connection portion. The lead pattern can be brought into a better contact state.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective explanatory view showing an embodiment of the present invention, FIG. 2 is an explanatory view of FIG. 1 viewed from each direction, (a) is a front explanatory view, and (b) is a plan view partially cut away. FIG. 3C is an explanatory view on the right side, FIG. 3 is an explanatory view taken along the line AA in FIG. 2, FIG. 4 is an explanatory view taken along the line BB in FIG. FIGS. 6A and 6B are explanatory views showing a flexible wiring board, FIG. 6A is a perspective explanatory view, FIG. 6B is a front side explanatory view, and FIG. 6C is a back side explanatory view. 7A and 7B show a slider, FIG. 7A is a plan explanatory view, FIG. 7B is a front explanatory view, FIG. 7C is a cross-sectional explanatory view along the line CC, and FIG. 8 is an explanatory view of a connector. A sectional view taken along the line AA at the slider retracted position, (b) is a sectional view taken along the line BB at the slider retracted position, and (c) is a flexible view. A-A line sectional view in the same position of inserting the table wiring board, (d) is a B-B line sectional view in the same position of inserting the flexible wiring board.

Reference numeral 1 denotes a flexible wiring board connector for connecting the flexible wiring board to another electronic member such as a printed wiring board. That is, the flexible wiring board connector 1 (hereinafter referred to as the connector 1) is electrically connected and fixed to another electronic board such as a printed wiring board, and as shown in FIG. 1 and FIGS. The flexible wiring board FPC is inserted and electrically connected to lead patterns provided on the front and back surfaces of the inserted flexible wiring board FPC to electrically connect the flexible wiring board FPC and other electronic members such as a printed wiring board. Connect to.
As shown in FIG. 1, the connector 1 has a substantially rectangular parallelepiped shape as a whole, and includes an insulating housing 2 and a slider 3. As shown in FIGS. 1 to 5, the connector 1 has a first contact 4, a second contact 5, a third contact 6, and a fourth contact 7 fixed in an insulating housing 2.

  As shown in FIG. 6, the flexible printed circuit board FPC used in this embodiment has a front surface side lead pattern F1 on the front surface and a back surface side lead pattern F4 on the back surface side. In FIG. 6, only the tip portion that is the connection portion of the flexible wiring board FPC that is required for connection is shown. As shown in FIG. 6B, the front-side lead pattern F1 has two rows of lead pattern tips in the direction perpendicular to the insertion direction to the connector 1 (vertical direction in the figure), and the first lead pattern contact portion F2. The second lead pattern contact portions F3 are arranged in a staggered pattern in two rows. And the interval between adjacent first lead pattern contact portions F2 is arranged at a pitch of 0.6 mm, and the pitch between adjacent second lead pattern contact portions F3 is also arranged at a pitch of 0.6 mm, In the front-side lead pattern F1, a lead pattern having a pitch of 0.3 mm is formed by the first lead pattern contact portion F2 and the second lead pattern contact portion F3. The front-side lead pattern F1 is exposed by metal plating so that the first lead pattern contact portion F2 and the second lead pattern contact portion F3 are in contact with each other, and the other portions are covered with an insulating film and insulated. Formed.

As shown in FIG. 6C, the back surface side lead pattern F4 is applied to the back surface side of the flexible wiring board FPC as well as the front surface side lead pattern F1. The back-side lead pattern F4 has two lead pattern tips at the third lead pattern contact portion F5 and the second lead pattern contact portion F6 in the direction orthogonal to the insertion direction into the connector 1 (vertical direction in the figure). It is arranged in a staggered pattern in a row. The distance between adjacent third lead pattern contact portions F5 is arranged at a pitch of 0.6 mm, and the pitch between adjacent fourth lead pattern contact portions F6 is also arranged at a pitch of 0.6 mm. The back surface side lead pattern F4 forms a lead pattern having a pitch of 0.3 mm by the third lead pattern contact portion F5 and the fourth lead pattern contact portion F6.
Therefore, the flexible wiring board FPC realizes a pitch of 0.15 mm by combining the front and back surfaces.

  In this embodiment, one side of the lead pattern having a pitch of 0.3 mm (0.15 mm pitch on both sides) is adjacent to form the lead pattern on the first lead pattern contact portion F2 located on the front end side of the flexible wiring board FPC. Since a lead pattern must be formed in the gap with the second lead pattern contact portion F3, a finer lead pattern cannot be formed in one layer, so a flexible wiring board FPC having a pitch of 0.3 mm on one side was taken as an example. However, the first lead pattern contact portion F2 is formed by penetrating from the second layer to the surface layer (first layer) of the flexible wiring board FPC laminated in several layers, etc. A flexible wiring board FPC in which lead pattern contact portions are arranged in a staggered manner can be applied to the connector 1. In this case, the pitch of each contact of the connector 1 is adjusted to the pitch of the flexible wiring board FPC. What is necessary is just to provide.

Details of each component will be described below.
As shown in each drawing, the insulating housing 2 is made of an insulating member such as LCP having a rectangular parallelepiped shape, and a hollow insertion chamber 21 is formed inside. One of the insertion chambers 21 is provided with an insertion opening 22 in the form of a slit, and the slider 3 is provided in the insertion opening 22 so as to be able to advance and retract. Further, a plurality of first contacts 4 to fourth contacts 7 are arranged in parallel on the inner surface of the insertion chamber 21 of the insulating housing 2.

The slider 3 is made of an insulating polymer resin material and, as shown in FIGS. 1 to 5 and 7, a pressing plate 31 that can be inserted into the insertion chamber 21 from the insertion opening 22 of the insulating housing 2 is provided. One end of the plate 31 is formed as a base portion 32 so as to be able to be locked to the end portion on the insertion opening 22 side of the insulating housing 2. In addition, the base 32 has a locking leg 33 extending from both ends in the direction in which the pressing plate 31 extends. A housing locking protrusion that can be locked to the side surface of the insulating housing 2 is formed on the opposing surface of the locking leg 33. The part 34 is protruded. The housing locking projection 34 locks the slider 3 and the insulating housing 2 by locking with a locking recess (not shown) provided on the side surface of the insulating housing 2. The slider 3 and the insulating housing 2 may be locked with each other by providing a locking portion as in the present embodiment, or without any particular locking portion, respectively. The pressing plate 31 is formed so that the side 31 is press-fitted into the side of the insertion opening 22 of the insulating housing 2 by being inserted into the insertion opening 22, and the slider 3 and the insulating housing 2 are locked. However, the present invention is not limited to this embodiment.
Further, the pressing plate 31 of the slider 3 is provided with a contact piece 35 made of an elongated metal piece on the front and back surfaces in the insertion direction. A plurality of the contact pieces 35 are arranged in parallel at a 0.6 mm pitch in a direction orthogonal to the insertion direction. Further, a pressing protrusion 36 that protrudes upward is provided on the top end side of the upper surface of the pressing plate 31. Since the pressing protrusion 36 is also provided at the same position of the contact piece 35, the contact piece 35 is also projected into the shape of the pressing protrusion 36 at the same position.
The slider 3 thus formed is inserted into the insulating housing 2 as shown in FIG. 3 and moved forward, and the locking leg 33 and the locking recess (not shown) of the insulating housing 2 are locked. A forward state and a retracted state in which the locked state as shown in FIG. 5 is released and retracted are taken. In the forward movement state of the slider 3, the pressing protrusion 36 is positioned to face the first contact and is connected to the first contact 4, and the contact piece 35 is positioned to face the third contact 6 on the lower surface side of the pressing plate 31. 6 is connected. Further, in the retracted state of the slider 3, it is possible to secure a gap in which the flexible wiring board FPC can be inserted between the insertion opening 22 of the insulating housing 2, and in the retracted state, the flexible wiring board FPC is inserted from the insertion opening 22. The flexible wiring board FPC can be fixed to the connector 1 by setting it to the forward state.

  As shown in FIG. 3, the first contact 4 is manufactured by die-cutting a conductive metal plate. And the 1st contact 4 is fixed to the back | inner side opposite to the insertion opening 22 in the insertion chamber 21 of the insulation housing 2, and the 1st connection fixation which electrically connects a base part with electronic members, such as a printed wiring board. The portion 41 is installed outside the insulating housing 2. The first connection fixing portion 41 is formed to be connectable by paste solder or the like. The other end of the first contact 4 positioned in the insulating housing 2 forms a first contact portion 42. The first contact portion 42 is formed by an upper leg portion formed in a U-shape, has a spring force so as to be able to press contact, and is positioned on the insertion opening 22 side on the upper inner surface of the insertion chamber 21. As described above, the first contact portion 42 positioned in the insulating housing 2 is a position where the first contact portion F2 of the flexible wiring board FPC inserted into the insertion chamber 21 at a proper position can be satisfactorily contacted. . Furthermore, the tip of the first contact portion 42 protrudes toward the U-shaped opposing leg 43 to form a contact protrusion 44, which can be in good contact with the first lead pattern contact portion F2 of the flexible wiring board FPC. To do. Moreover, the opposing leg part 43 of the 1st contact part 42 formed in the U shape of the 1st contact 4 is fixed to the insulation housing 2 as shown in FIG.

As shown in FIG. 4, the second contact 5 is manufactured by die-cutting a conductive metal plate like the first contact 4. And the 2nd contact 5 is fixed to the back side opposite to the insertion opening 22 in the insertion chamber 21 of the insulating housing 2, and the 2nd connection fixation which electrically connects a base part with electronic members, such as a printed wiring board. The part 51 is exposed outside the insulating housing 2 and installed. The second connection fixing portion 51 is formed to be connectable by paste solder or the like. The other end of the second contact 5 positioned in the insulating housing 2 forms a second contact portion 52. The second contact portion 52 is formed by an upper leg portion formed in a U-shape and has a spring force so as to be able to be pressed and contacted with the upper inner surface of the insertion chamber 21 from the first contact portion 42 of the first contact 4. It is located in the insertion chamber 21 back side. As described above, the second contact portion 52 positioned in the insulating housing 2 is a position where the second lead pattern contact portion F3 of the flexible wiring board FPC inserted into the insertion chamber 21 at a proper position can be satisfactorily contacted. . Furthermore, the tip of the second contact portion 52 protrudes toward the U-shaped opposing leg portion 43 to form a contact protrusion 54, which can be in good contact with the second lead pattern contact portion F3 of the flexible wiring board FPC. Form. Further, the opposing leg portion 53 of the second contact portion 52 formed in a U-shape of the second contact 5 is fixed to the insulating housing 2 as shown in FIG.
As shown in FIG. 2, the first contact 4 and the second contact 5 formed in this way are alternately installed in the insertion chamber 21 with an interval of 0.3 mm at the center position between the first contact 4 and the second contact 5. Is done.

  As shown in FIG. 3, the third contact 6 is manufactured by die-cutting a conductive metal plate like the first contact 4. The third contact 6 is fixed to the insertion opening 22 side of the lower surface of the insertion chamber 21 of the insulating housing 2, and the base portion is used as a third connection fixing portion 61 that is electrically connected to an electronic member such as a printed wiring board. 2 is exposed and installed on the outer side of the insertion opening 22 side. The third connection fixing part 61 is formed to be connectable by paste solder or the like. The other end of the third contact 6 positioned in the insulating housing 2 forms a third contact portion 62. The third contact portion 62 is formed as a leg portion substantially in parallel with the third connection fixing portion 61 that is a base portion, has a spring force so as to be capable of pressing contact, and is positioned so as to face the first contact portion 42. Furthermore, the tip of the third contact portion 62 is protruded toward the first contact portion 42 to form a contact protrusion 64. Thus, the third contact part 62 positioned in the insulating housing 2 is satisfactorily interposed via the third lead pattern contact part F4 and the slider 3 of the flexible wiring board FPC inserted into the insertion chamber 21 at the regular position. It becomes the position where it can touch. That is, since the contact piece 35 of the slider 3 is pressed and brought into contact with the contact protrusion 64 of the third contact 6 at the advanced position of the slider 3, the flexible wiring inserted on the upper surface side of the slider 3 as shown in FIG. 3. Electrical connection can be established through the third lead pattern contact portion F5 of the substrate FPC and the contact piece 35.

  As shown in FIG. 4, the fourth contact 7 is manufactured by die-cutting a conductive metal plate like the first contact 4. And the 4th contact 7 is fixed to the insertion opening 22 side of the insertion chamber 21 lower surface of the insulating housing 2 like the 3rd contact 6, and the 4th connection fixation by which a base is electrically connected with electronic members, such as a printed wiring board. As the portion 71, the insulating housing 2 is exposed and installed on the outer side of the insertion opening 22 side. The fourth connection fixing part 71 is formed to be connectable by paste solder or the like. The other end side of the fourth contact 7 located in the insulating housing 2 is formed substantially in parallel with the fourth connection fixing portion 71 which is the base portion, and has a spring force so as to be able to press and contact the fourth contact portion 72 and The swing end portion 75 is formed, and is formed so as to be connected to the fourth connection fixing portion 71 at an intermediate portion between the fourth contact portion 72 and the swing end portion 75. Further, the tip of the fourth contact portion 72 protrudes from the side facing the second contact portion 52 to project a fourth contact projection 74, and the fourth contact portion 72 is opposed to the second contact portion 52. To form. Further, the swing end portion 75 is formed so as to face the first contact portion 42, and a pressing protrusion 76 is provided on the swing end portion 75 on the side opposite to the slider 3.

  Thus, the 4th contact part 72 located in the insulating housing 2 becomes a position which can contact favorably with the 4th lead pattern contact part F6 of the flexible wiring board FPC inserted in the insertion chamber 21 in the regular position. . That is, at the slider 3 forward position, the pressing plate 31 of the slider 3 comes into contact with the pressing protrusion 76 of the oscillating end 75 and presses the oscillating end 75 downward, whereby the fourth contact portion 72 is moved. Since the fourth contact protrusion 74 is pressed and contacted with the fourth lead pattern contact portion F6 of the flexible wiring board FPC, the flexible wiring board inserted on the upper surface side of the slider 3 as shown in FIG. It can be electrically connected to the fourth lead pattern contact portion F6 of the FPC.

  The third contact 6 and the fourth contact 7 thus formed are alternately arranged at intervals of 0.3 mm at the center position of the third contact 6 and the fourth contact 7 in the same manner as the first contact 4 and the second contact 5. Installed in the insertion chamber 21. Further, the fourth contact portion 72 of the fourth contact 7 is installed so as to face the second contact portion 52 of the second contact 5.

Next, the operation of the embodiment will be described below.
As shown in FIGS. 8A and 8B, the connector 1 has the slider 3 in the retracted position in advance. In this state, the insertion end of the pressing plate 31 of the slider 3 has not yet reached the positions of the first contact 4 and the third contact 6.

Therefore, the first contact 4, the second contact 5, the third contact 6, and the fourth contact 7 are not yet pressed and are in a state in which no position is changed.
Next, as shown in FIGS. 8C and 8D, the flexible wiring board FPC is inserted from the insertion opening 22 to the inner part of the insertion chamber 21. The inner portion of the insertion chamber 21 of the insulating housing 2 is formed in advance so that the distal end of the insertion side of the flexible wiring board FPC contacts the inner side surface of the insertion chamber 21 in a state where the flexible wiring board FPC is normally inserted. The flexible wiring board FPC is in a normal position by being inserted until it comes into contact with the inner part. In this state, the first contact portion 42 of the first contact 4 is in a position facing the first lead pattern contact portion F2, and the second contact portion 52 of the second contact 5 is in a position facing the second lead pattern contact portion F3. It becomes. The third contact portion 62 of the third contact 6 faces the pressing plate 31 of the slider 3 at the position of the third lead pattern contact portion F5. The fourth contact portion 72 of the fourth contact 7 faces the fourth lead pattern contact portion F6, and the swing end portion 75 faces the pressing plate 31 of the slider 3 at the fourth lead pattern contact portion F5 position.

Next, the slider 3 is moved forward, and the locking protrusion 34 provided on the locking leg 33 of the slider 3 is inserted until it is locked with a locking recess (not shown) provided on the side surface of the insulating housing 2 to advance. Make me chill.
This state is shown in FIG. 3 and FIG.
In this state, as shown in FIG. 3, the first contact 4 is pressed upward by the pressing plate 31 of the slider 3 so that the first contact portion 42 of the first contact 4 is pressed upward. The first lead pattern contact portion F2 and the contact protrusion 44 of the flexible printed circuit board FPC are pressed and brought into contact with each other by the spring force of the first contact 4 to obtain a good connection state.

Further, since the third contact 6 is in the forward position, the third contact portion 62 is opposed to the contact piece 35 of the slider 3 and is pressed and deformed downward by the pressing plate 31 of the slider 3. The contact protrusion 64 of the third contact portion 62 comes into contact with the contact piece 35 provided on the pressing plate 31 on the back surface side of the pressing plate 31 by the spring force. At this time, the contact piece 35 is in press contact with the third lead pattern contact portion F3 of the flexible wiring board FPC on the upper surface side. Since the contact piece 35 is continuously provided up to the upper surface side of the pressing plate 31, the third lead pattern contact portion F3 and the third contact portion 62 of the third contact 6 are connected via the contact piece 35. It will be.
Further, in the second contact 5 at the forward movement position of the slider 3, as shown in FIG. 4, the second contact portion 52 is located at a position facing the second lead pattern contact portion F3 of the flexible wiring board FPC. At this time, the fourth contact portion 72 of the fourth contact 7 is also positioned opposite to the fourth lead pattern contact portion F6 of the flexible wiring board FPC.

  In the state shown in FIG. 4, the swing end portion 75 of the fourth contact 7 is deformed downward by the pressing plate 31 of the slider 3, so that the fourth contact portion 72 of the fourth contact 7 corresponds to the deformation. Since the fourth contact portion 72 swings upward with a spring force, the flexible wiring board FPC is sandwiched between the second contact portion 52 of the second contact 5 that is opposite to the fourth contact portion 72, and the second contact portion 52. The contact portion 52 is in press contact with the second lead pattern contact portion F3, and the fourth contact portion 72 is in press contact with the fourth lead pattern contact portion F6, thereby obtaining a good connection state.

  In this embodiment, the lead pattern of the flexible printed circuit board FPC is described as being arranged in two rows in a staggered manner. However, the lead pattern on the surface side is not necessarily two rows in a staggered manner, and the single-sided 0.2 mm shown in the conventional example. It can also be implemented with a lead pattern of a flexible printed circuit board FPC in which the pitch is arranged on both sides. In this case, it is sufficient to arrange the first contact and the second contact in the same row.

  INDUSTRIAL APPLICABILITY The present invention can be used for a connector for connecting a flexible wiring board having lead patterns arranged in two rows on both sides in a staggered pattern to other electronic members such as a printed wiring board, and in particular, a staggered arrangement with a pitch of 0.15 mm It can be used as a connector for a flexible wiring board.

An explanatory perspective view showing an embodiment of the present invention (A) is front explanatory drawing, (b) is plane explanatory drawing which cut off a part, (c) is right side explanatory drawing. AA cross-sectional explanatory diagram in FIG. BB cross-section explanatory drawing in FIG. BB cross-section explanatory drawing in slider retreat position (A) is a perspective explanatory view, (b) is a front side explanatory view, and (c) is a back side explanatory view. (A) is an explanatory plan view, (b) is an explanatory front view, and (c) is a cross-sectional explanatory view taken along the line CC. It is explanatory drawing of a connector, (a) is AA sectional view explanatory drawing in a slider retracted position, (b) is BB sectional sectional explanatory drawing in a slider retracted position, (c) is the same position which inserted the flexible wiring board. A-A line cross-sectional explanatory diagram in FIG. 2, (d) is a BB line cross-sectional explanatory diagram at the same position where the flexible wiring board is inserted. Explanatory drawing of 0.3mm pitch lead pattern of flexible wiring board Explanatory drawing of 0.2mm pitch lead pattern of flexible wiring board Cross-sectional explanatory diagram showing a conventional connector example

Explanation of symbols

FPC Flexible wiring board F1 Front side lead pattern F2 First lead pattern contact part F3 Second lead pattern contact part F4 Back side lead pattern F5 Third lead pattern contact part F6 Fourth lead pattern contact part 1 Flexible wiring board connector 2 Insulation Housing 21 Inserting chamber 22 Inserting opening 3 Slider 31 Pressing plate 32 Base 33 Locking leg 34 Housing locking protrusion 35 Contact piece 36 Pressing protrusion 4 First contact 41 First connection fixing part 42 First contact part 43 Opposing leg part 44 Contact protrusion 5 Second contact 51 Second connection fixing portion 52 Second contact portion 53 Opposing leg portion 54 Contact protrusion portion 6 Third contact 61 Third connection fixing portion 62 Third contact portion 64 Contact protrusion portion 7 Fourth contact 71 Fourth connection fixing portion 72 Fourth contact portion 74 Fourth contact protrusion 75 Oscillation End 76 Pressing protrusion

Claims (1)

An insulating housing in which an insertion chamber into which a flexible wiring board is inserted is formed in a recessed manner, and one of the opened chambers forms an insertion opening;
It is attached to one inner surface of the insertion chamber so as to be parallel to each other with a predetermined insulating gap, and forms a first connection fixing portion whose base end is exposed to the outside of the insulating housing, and the other end is located at the insertion opening side as a free end. A first contact that forms a first contact portion that can contact the lead pattern of the flexible wiring board;
It is attached to one inner surface of the insertion chamber so as to be parallel to each other with a predetermined insulating gap, and a second connection fixing portion is formed whose base end is exposed to the outside of the insulating housing, and the other end is inserted from the first contact as a free end. A second contact that forms a second contact portion that is located on the back side of the chamber and can contact the lead pattern of the flexible wiring board;
A third connection fixing portion is formed on the inner surface opposite to the inner surface provided with the first contact and the second contact so as to be parallel to each other with a predetermined insulating gap, and the base end is exposed to the outside of the insulating housing. A third contact which forms a third contact portion whose end is positioned as a free end and which can be brought into contact with the lead pattern of the flexible wiring board via a slider;
Mounted on the inner surface opposite to the inner surface provided with the first contact and the second contact so as to be parallel to each other with a predetermined insulating gap, the base end forms a fourth connection fixing portion exposed to the outside of the insulating housing. The end forms a free end that can swing with a spring force, and one of the free ends forms a fourth contact portion that is located on the back side of the insertion chamber from the third contact and can contact the lead pattern of the flexible wiring board. The other end of the free end is positioned toward the insertion opening and forms a swinging end that is pressed by the slider, and the swinging end is pressed by the slider so that the fourth contact portion becomes the lead pattern of the flexible wiring board. A fourth contact to be in press contact;
It consists of a plate-like body and is provided so as to be able to move forward and backward into the insertion chamber. The flexible wiring board can be fixed to the insulating housing at the forward position inserted into the insertion chamber, and a gap through which the flexible wiring board can be inserted into the insertion chamber at the backward position. A slider that provides a contact piece so as to make the front and back surfaces of the plate-like body conductive at a position facing the third contact portion of the third contact;
A connector for connecting a flexible wiring board, comprising:

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