JP4316148B2 - Flat wiring material connection structure and flat wiring material connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection structure for flat wiring materials such as flat cables, ribbon electric wires, FFC (Flexible Flat Cable), and FPC (Flexible Printed Circuit), and a connector for flat wiring materials.
[0002]
[Prior art]
Conventionally, when configuring various electronic units, it has been generally performed to electrically connect circuit boards to each other with a flat wiring material such as FFC.
[0003]
In this case, a board connector is usually mounted on the circuit board, and the conductors of the respective FFCs and the board circuit are connected via the board connector.
[0004]
As shown in FIG. 13A, for example, the board connector includes a housing 90 and a slider 100 that is detachably attached to the housing 90. The housing 90 includes a number of terminal storage chambers 92. Terminals 94 are housed in each terminal housing chamber 92, which are juxtaposed (in parallel with each other in the direction orthogonal to the paper surface in the drawing). Note that, at the tip of each terminal 94, a connecting bending piece 94a that can be deflected up and down is formed.
[0005]
In order to make a connection using the board connector C, first, as shown in the figure, the housing 90 is fixed to the circuit board (not shown) side by a holder or the like, and the leg portions 94b of the terminals 94 are illustrated. Connect to the land on the board with solder. On the other hand, the FFC 80 treats its end to expose the end of each conductor 81 to the lower side, and further, a reinforcing plate 82 for restricting the bending of the end of the FFC 80 is attached to the surface of the end. . Then, as shown in FIG. 13B, after inserting the end of the FFC 80 into the housing 90 in a loosely fitted state until the end surface of the housing abuts against the back side of the housing 90, the slider having the tongue piece 102 from the insertion side. 100 is inserted. When the insertion of the slider 100 is completed (FIG. 3C), the tongue piece 102 pushes up the end of the conductor 81 of the FFC 80, whereby each conductor 81 comes into contact with the connecting flexure piece 94a of the terminal 94. By this contact, the FFC 80 is connected to a circuit on the circuit board side via the terminal 94.
[0006]
[Problems to be solved by the invention]
In the conventional board connector C as described above, the terminal of the FFC 80 is inserted into the housing 90, and the FFC 80 is held by the board connector C in a state where the tip end is abutted against the inner end of the housing 90. It is difficult to fix the FFC 80 by the slider 100 while reliably abutting the portion against the rear end of the housing, and there is a problem that the FFC 80 is likely to be half inserted into the board connector C.
[0007]
Further, since the FFC 80 is sandwiched between the tongue piece 102 of the slider 100 and the connecting bending piece 94a of the terminal 94 and is only held by the elastic force of the connecting bending piece 94a, the FFC 80 is used for connection with the tongue piece 102 during use. It is conceivable that the FFC 80 is dropped from between the flexure pieces 94 a or the FFC 80 is displaced in the pulling direction and each conductor 81 is in an incomplete contact state with the terminal 94. For this reason, it is desirable that the FFC 80 is not easily pulled out of the board connector C after the slider 100 is inserted. In this case, it is desirable to prevent the conductor 81 from sliding slightly with respect to the terminal 94, thereby preventing contact wear and maintaining a good connection between the conductor 81 and the terminal 94.
[0008]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a flat wiring member connection structure and a flat wiring member connector that can be reliably connected by simple operations.
[0009]
[Means for Solving the Problems]
  In order to solve the above-described problems, a flat wiring member connection structure according to the present invention includes a housing for a first connector that houses a large number of terminals in a line, and a housing for a second connector that holds the flat wiring member. Are connected to each other by inserting the leading end portion of the flat wiring material into the housing of the first connector and bringing each conductor of the flat wiring material into contact with each terminal. In a state where the housings are fitted to each other, the front end portion of the flat wiring member abuts on the back end portion of the first connector and is in a direction opposite to the insertion direction of the first connector relative to the housing of the second connector. The tip is pushed back.The flat wiring member is brought into pressure contact with the elastic member provided in the housing of the second connector and elastically deforms the elastic member.The conductor and the terminal are in contact with each other in a state where the flat wiring member is urged toward the back end side of the first connector (claim 1).
[0010]
  According to such a structure, when both the connectors are fitted, first, the front end portion of the flat wiring material comes into contact with the back end portion of the first connector, and in this state, the front end portion is pushed back against the housing of the second connector. The housings of both connectors are fitted together while being retracted (retracted). Therefore, the front end portion of the flat wiring member can be reliably abutted against the back end portion of the mating connector by a simple fitting operation between the connector housings. And after fitting both connectors, by pushing back the flat wiring materialElastic member bulletThe tip of the flat wiring material is urged (pressed) to the back end side of the first connector by the generated force, and as a result, the flat wiring material is removed, or the conductor is displaced and finely slid with respect to the terminal. Will be prevented.
[0015]
  In addition,the aboveIn the structure, the reinforcing member is fixed to the front end portion of the flat wiring member, and the reinforcing member is supported on the housing of the second connector in a state in which the reinforcing member can be advanced and retracted in the fitting direction with the first connector. The housing of the second connector is provided with an engaging portion that engages with each other to restrict the retraction of the reinforcing member, and the engaging portions are engaged with each other in a state in which both the connector housings are fitted. (Claims)2).
[0016]
According to this configuration, even if the front end portion of the flat wiring material does not contact the back end portion of the first connector for some reason, both engagement portions are first engaged with each other in the process of fitting the two connectors and are flat. Displacement (retraction) of the wiring material is prevented, and then the first connector is displaced relative to the flat wiring material, so that the tip of the flat wiring material hits the back end of the first connector. It becomes. Therefore, it is possible to reliably prevent the flat wiring member from being half inserted into the first connector.
[0017]
  On the other hand, the connector for a flat wiring material according to the present invention includes a first connector that houses a large number of terminals in a line and a second connector that holds the flat wiring material, and the housings of both connectors are fitted together. A flat wiring material connector in which the front end portion of the flat wiring material is inserted into the housing of the first connector by bringing the conductors into contact with the respective terminals of the flat wiring material,A support portion that supports the front end portion of the flat wiring member in the housing of the second connector so as to be able to advance and retreat in the fitting direction with the first connector, and the flat wiring member is retracted behind the support portion. A hollow portion that allows the wiring material to bend, andWhen the housings of both connectors are fitted together, the tip of the flat wiring member abuts against the back end of the first connector and is in a direction opposite to the insertion direction of the first connector relative to the housing of the second connector. The tip is pushed back to theThe flat wiring material is bent in the hollow portion of the second connector.Repulsive forcesoFlat wiring materialButEnergized toward the back end of the first connectorIsIn this way, the flat wiring member is held with respect to the housing of the second connector.3).
[0018]
  According to this configuration, when the two connectors are fitted together, first, the distal end portion of the flat wiring member comes into contact with the inner end portion of the first connector, and in this state, the distal end portion is pushed back against the housing of the second connector. The housings of both connectors are fitted together. Therefore, the front end portion of the flat wiring member can be reliably abutted against the back end portion of the mating connector by a simple fitting operation between the connector housings. After fitting both connectors, push the flat wiring material back.The flat wiring material bends in the hollow part of the housing.ResiliencesoSince the front end portion of the flat wiring material is biased (pressed) toward the back end portion of the first connector, the flat wiring material is prevented from falling off, or the conductor is not displaced or slightly slid. .
[0023]
  Claims3In the flat wiring member connector described above, the flat wiring member is held in a state of being bent substantially perpendicularly behind the portion where bending is allowed in the hollow portion, and the rear side in the longitudinal direction from the bent portion. More preferably, the second connector is configured to be fixedly held with respect to the housing.4).
[0024]
According to this configuration, the flat wiring member can be easily bent with a simple structure, and the second connector can be made compact in the fitting direction.
[0025]
  Further, another flat wiring material connector according to the present invention includes a first connector that houses a large number of terminals in a line and a second connector that holds the flat wiring material. A flat wiring material connector in which the leading end of the flat wiring material is inserted into the housing of the first connector by fitting the conductors so that each conductor of the flat wiring material contacts each terminal,A support portion for supporting a flat wiring member having a reinforcing member fixed to a tip portion thereof in the housing of the second connector so as to be able to advance and retreat in the fitting direction with the first connector, and provided on the back side of the support portion.TehuAn elastic member that elastically abuts against the wiring member at a rear portion of the reinforcing member as the rat wiring member retreats;ButProvidedWhen the housings of both connectors are fitted to each other, the leading end portion of the flat wiring member abuts on the back end portion of the first connector, and the insertion direction of the second connector relative to the housing of the second connector The tip of the second connector is pushed back in the opposite direction to press against the elastic member, and the elastic force of the elastic member causes the flat wiring member to be urged toward the back end of the first connector. On the other hand, the flat wiring material is held(Claims5).
[0026]
  This structureThen, when fitting both the connectors, first, the distal end portion of the flat wiring material comes into contact with the inner end portion of the first connector, and in this state, the distal end portion is pushed back against the housing of the second connector. The housings of both connectors are fitted. Therefore, the front end portion of the flat wiring member can be reliably abutted against the back end portion of the mating connector by a simple fitting operation between the connector housings. And after fitting both connectors,The tip of the flat wiring material is pushed back against the housing of the second connector.RiffRat wiring material becomes an elastic memberPressure contact thisThe elastic force of the elastic deformationsoThe flat wiring material is urged toward the back end of the first connectorStateIt becomes.For this reason, the flat wiring member is prevented from falling off, or the conductor is displaced from the terminal and the sliding is satisfactorily prevented.
[0027]
  In the above configuration, it is preferable that the elastic member is composed of a bending piece that is bent and deformed as the flat wiring member retreats.6).
[0028]
According to this configuration, the elastic member can be provided structurally easily.
[0029]
  In this case, the bending pieces extend straight in an oblique direction with respect to the insertion direction of the flat wiring material to the first connector and intersect each other, and the respective tip portions are evenly positioned from the center in the width direction of the flat wiring material. It is more preferable to provide a pair of flexure pieces that come into contact with each other.7).
[0030]
If it does in this way, a flat wiring material can be urged | biased by the uniform force to the width direction with the bending piece with simple shape.
[0031]
DETAILED DESCRIPTION OF THE INVENTION
A first embodiment of the present invention will be described with reference to the drawings.
[0032]
FIG. 1 is a cross-sectional view of a connector for a flat wiring material according to the present invention. As shown in these drawings, the flat wiring material connector includes a first connector C1 mounted on a circuit board (not shown) and a second connector C2 holding the FFC 10, and both connectors C1, C2 are included. By fitting the housings 20 and 30 to each other, each conductor of the FFC 10 and the circuit on the substrate are connected.
[0033]
The first connector C1 has the same structure as a conventionally well-known board connector (board connector C of the prior art), and a large number of terminal storage chambers 22 are arranged in parallel in the housing 20 (see FIG. In this case, the terminals 24 are accommodated in each terminal accommodating chamber 22. At the tip of each terminal 24, a connecting flexure piece 24 a that can be deflected up and down is formed. When the FFC 10 is inserted into the housing from the insertion port 28 formed on one end side of the housing 20, the FFC 10 Each of the conductors 11 is configured to contact the connecting flexure piece 24b of the terminal 24.
[0034]
The second connector C <b> 2 has a hollow L-shaped housing 30, and the FFC 10 is held in the housing 30.
[0035]
The end of the FFC 10 is processed so that the end of each conductor 11 is exposed, and a reinforcing plate 12 (reinforcing member) that restricts the bending of the FFC end is laminated and fixed to the back surface of the end. And it is hold | maintained with respect to the housing 30 as follows.
[0036]
That is, as shown in the figure, after being introduced into the housing 30 substantially vertically upward from the opening 32 formed in the bottom wall of the housing, and after being inverted 180 ° downward at the top of the housing (this part is And is bent 90 degrees substantially horizontally along an arcuate inner wall surface 42 formed inside the housing, led out from the outlet 38 toward the mating connector C1, and is led to the edge of the outlet The tongue piece 40 (support part) formed continuously is supported so as to be slidable (advanced and retracted) in a direction parallel to the fitting direction with the first connector C1. And the length from the said inversion part 35 to the FFC front-end | tip part is adjusted so that only the predetermined dimension may protrude toward the other party connector C1 side from the said tongue piece 40, In this state, the said inversion part 35 is set to the housing 30. The FFC 10 is held with respect to the housing 30 by being fixed.
[0037]
As a result, when a force in the direction opposite to the insertion direction to the first connector C1 (leftward in the figure) acts on the FFC tip, as shown in FIG. 2, the FFC 10 is pushed back into the housing while being bent. It is configured.
[0038]
The reinforcing plate 12 has hooks 12a (see FIG. 3; engaging portions) formed on both sides thereof. When the FFC 10 is pushed back by an external force, the hooks 12a are connected to the edge portion (engagement portion) of the outlet port 38. Engaging). Specifically, as shown in FIG. 2, when the end portion of the FFC 10 is pushed back to a position where it is substantially flush with the end portion of the tongue piece 40, the hook 12a engages with the housing 30 and thereby moves in the same direction. The above displacement is prevented.
[0039]
Here, a more specific configuration of the second connector C2 will be described. As shown in FIGS. 1 and 3, the housing 30 of the second connector C2 includes the outlet 38, the tongue piece 40, and the inner wall surface 42. It comprises a first part 30a provided and a second part 30b which is a lid of the first part 30a. The hollow housing 30 is constituted by fitting these parts 30a and 30b together. .
[0040]
In assembling the second connector C2 (holding the FFC 10), first, the end of the FFC 10 is processed to fix the reinforcing plate 12, and then the FFC 10 is attached along the contact plate 14 as shown in FIG. At this time, the reversal part 35 is formed by reversing the FFC 10 180 ° at the end of the contact plate 14 and affixing it. Then, after passing the end portion of the FFC 10 through the lead-out port 38 of the first part 30a, the second part 30b is sandwiched between the reversing portions 35 of the FFC 10 by the fixing surfaces 34 and 36 provided on both the parts 30a and 30b. Are fitted to the first part 30a, and the hook 44 of the first part 30a is locked to the second part 30b to integrate the parts 30a and 30b.
[0041]
In this way, the reversing part 35 is held between the fixing surfaces 34 and 36, whereby the FFC 10 is held in the housing 30. Further, the introduction port 32 is formed at the bottom of the housing by the cooperation of both the parts 30a and 30b, and the rear end portion in the longitudinal direction of the FFC 10 is inserted into the introduction port 32 with respect to the inversion portion 35.
[0042]
Incidentally, on both side walls of the outlet port 38 of the first part 30a, as shown in FIG. 4, bent pieces 31 that are tapered from the inner side of the housing to the outer side (from the lower side to the upper side in the figure) are formed. Thus, when the leading end portion of the FFC 10 is passed through the outlet 38, the leading end portion of the FFC 10 is led out of the housing while the bending piece 31 is spread by the hook 12a. Once the front end portion of the FFC 10 is led out of the housing, the hook 12a engages with the flexure 31 as shown by a two-dot chain line in the figure, whereby the FFC front end portion is inserted into the first connector C1. Displacement in the direction opposite to the direction (from the top to the bottom in the figure) is prevented.
[0043]
In order to connect using the flat wiring material connector as described above, the housing 20 of the first connector C1 is fixed to the circuit board side with a holder (not shown) and the leg portions 24b of the terminals 24 are mounted on the board. Connect with solder.
[0044]
5A, first, the FFC 10 is inserted into the housing 20 from the insertion port 28 of the first connector C1, and the tongue piece 40 of the second connector C2 is inserted into the housing 20 of the first connector C1. While pushing, both connectors C1 and C2 are fitted. In this way, the front end of the FFC 10 first strikes the back end 26 of the housing 20, and when the fitting state of both the connectors C1 and C2 proceeds further, the front end of the FFC 10 is in contact with the housing 30 of the second connector C2. It will be pushed back and bend.
[0045]
When both the connectors C1 and C2 are in a completely fitted state, as shown in FIG. 5 (b), each conductor 11 of the FFC 10 is connected to each terminal 24 via the reinforcing plate 12 by the tongue piece 40. The FFC 10 is connected to the circuit on the circuit board side via each terminal 24 by being pressed against the terminal 24a. On the other hand, the FFC 10 is bent in the housing 30, and as a result, the FFC tip is biased toward the back end 26 side of the housing 20 by the repulsive force due to this bending (the elastic force due to the bending of the FFC 10). (Pressed).
[0046]
In the process of fitting both the connectors C1 and C2, the FFC 10 is pushed back as described above. At this time, when the FFC tip is pushed back to the position where it is flush with the tongue piece 40, the hook of the reinforcing plate 12 is pushed. 12a engages the edge of outlet 38, which prevents further displacement of FFC 10. Therefore, even if the front end portion of the FFC 10 does not hit the back end portion 26 of the first connector C1 for some reason, when both the connectors C1 and C2 are finally in a completely fitted state, as shown in FIG. Both the FFC 10 and the tip of the tongue piece 40 come into contact with the back end portion 26 of the first connector C1. That is, when the front end portion of the FFC 10 is not in contact with the rear end portion 26 of the first connector C1, the hook 12a first engages with the outlet port edge portion as both the connectors C1 and C2 are fitted, and the FFC 10 is displaced. Then, the first connector C1 is displaced relative to the FFC 10. As a result, when both the connectors C1 and C2 are finally fitted, the front end of the FFC 10 comes into contact with the back end 26 of the first connector C1. Therefore, the FFC 10 is not half inserted into the first connector C1.
[0047]
According to the flat wiring material connector as described above, when the two connectors C1 and C2 are fitted, the FFC 10 is bent and the repulsive force causes the front end of the FFC 10 to be attached to the back end 26 side of the first connector C1. As a result, the tip end portion is always held in contact with the rear end portion 26 of the housing 20. Therefore, without paying special attention, the front end portion of the FFC 10 can be securely attached to the rear end portion of the first connector C1 by simply performing a simple operation of bringing the connectors C1 and C2 closer together and fitting the housings 20 and 30 together. 26 can be brought into contact.
[0048]
In addition, after the fitting of the connectors C1 and C2, as described above, the tip of the FFC 10 is urged toward the back end 26 of the first connector C1 by the repulsive force caused by the bending of the FFC 10. Alternatively, the displacement and fine sliding of the conductor 11 with respect to the terminal 24 are satisfactorily prevented. Therefore, it becomes difficult for the FFC 10 to drop off from the terminals 24, and displacement and fine sliding of each conductor 11 with respect to each terminal 24 are effectively prevented.
[0049]
Therefore, according to the above flat wiring material connector, it is possible not only to prevent the FFC 10 from being in a half-inserted state with a simple connection work, but also to connect the FFC 10 after fitting both the connectors C1 and C2. The state can be maintained well.
[0050]
In the example described above, in the second connector C2, the FFC 10 is temporarily changed by 180 °, the reversing portion 35 is fixedly held in the housing 30, and further, the FFC 10 is bent horizontally by 90 ° and then outside the housing. Although the FFC 10 has a specific holding structure, the FFC 10 is bent well in the fitting process of the connectors C1 and C2, and the FFC tip is attached to the mating connector C1 side by this bending. Any structure may be used as long as it can be pressed (pressed). However, if the FFC 10 is bent by about 90 ° with respect to the insertion direction as described above, the FFC 10 can be flexed satisfactorily with a simple structure, and after fitting, the FFC 10 faces the mating connector C1. The tip portion can be favorably biased. Further, the second connector C2 can be made compact in the fitting direction. Therefore, it is particularly advantageous as a holding structure for the FFC 10 in the second connector C2.
[0051]
Next, a second embodiment of the present invention will be described.
[0052]
FIGS. 6 to 8 and FIG. 10A show the flat wiring material connector according to the second embodiment. As shown in these drawings, the flat wiring material connector of the second embodiment holds the first connector C1 mounted on the circuit board and the later-described divided pieces 10a and 10b formed at the end of the FFC 10, respectively. Each of the conductors 11 and the substrate of the FFC 10 (divided pieces 10a and 10b) by fitting the housing 60 of each second connector C2 to the housing 50 of the first connector C1. It is comprised so that an upper circuit may be connected.
[0053]
The second connector C2 in the second embodiment is mounted on the lower surface (back surface) of the circuit board, and has an elongated female housing 50 as shown in FIG. In this housing 50, as shown in FIG. 11A, two connecting portions 51A and 51B are partitioned in the width direction (vertical direction in the figure).
[0054]
A plurality of terminal storage chambers 52 are juxtaposed in the width direction in each of the connection portions 51A and 51B, and terminals 54 (see FIG. 10A; shown in FIG. 11A) in each terminal storage chamber 52. (Omitted) is stored. Each terminal 54 has a connecting flexure piece 54a that can be flexed and displaced up and down at the tip, and has a leg portion 54b extending rearward on the upper side, and the leg portion 54b of each terminal 54 is a circuit board. Each terminal 54 is connected to a circuit on the substrate by being soldered to an upper land or the like.
[0055]
On the front side of the housing 50, the insertion ports 56A and 56B of the FFC 10 (divided pieces 10a and 10b) corresponding to the respective connection portions 51A and 51B are independently provided, and these are inserted when the FFC 10 is connected. The second connectors C2 are respectively inserted into the housing 50 from the ports 56A and 56B, so that the conductors of the FFC 10 are in contact with the connecting bending pieces 54a of the terminals 54.
[0056]
A cylindrical hood 57 is formed around each of the insertion ports 56A, 56B, and a locking hole 57a for connector locking is formed in each of the hoods 57. When the FFC 10 is connected, this hood The second connector C <b> 2 is fitted and locked in 57.
[0057]
On the other hand, each second connector C2 has a housing 60 composed of a housing body 60a and a holder 60b, and the housing 60 holds the split piece 10a (10b) of the FFC 10.
[0058]
As shown in FIG. 9, the housing body 60 a has an L-shaped cross section having a rear plate 62, a side plate 63, and a top plate 64. Guide portions 65 of holders 60b extending in the front-rear direction (the left-right direction in FIG. 10A) are formed on the inner walls of the side plates 63 of the housing main body 60a, and the holders 60b are further locked to the guide portions 65. Each of the locking holes 65a is formed.
[0059]
Further, the inner wall surface of the rear plate 62 is provided with a pressure contact bar 67 made of a pair of bending pieces that extend straight from the inner wall surface in an oblique direction with respect to the fitting direction with the first connector C1 and intersect each other. ing. These press-contact bars 67 are provided, for example, so as to come into contact with the same position from the center in the width direction of the postscript divided pieces 10a, 10b of the FFC 10. In addition, the tip part of each press contact bar 67 is provided with an inverted truncated cone-shaped contact portion 67a that contacts a bent portion of the FFC 10 (the divided pieces 10a and 10b).
[0060]
Furthermore, a pair of thin tab-like knobs 68 are provided on the outer wall surface of the rear plate 62 as shown in FIG. These knobs 68 are connected and fixed to the center of the rear plate 62 in the width direction, respectively, and the storage positions (see FIG. 6) are in a prone posture with respect to the outer wall surface of the rear plate 62 with the base end portion as a fulcrum. ) And a use position (see FIG. 12) in which the knobs 68 are back-to-back with each other in a standing posture with respect to the rear plate 62. A hook 68 a is formed at the tip of each knob portion 68, and when the knob portion 68 is set at the use position, the hook 68 a is connected to the side plate 63 via a locking hole 66 formed in the side plate 63. Thus, the knob portion 68 is locked in the storage position.
[0061]
A protrusion 69 corresponding to the locking hole 57a formed in the housing 50 of the first connector C1 is formed on the top surface of the top plate 64 of the housing body 60a.
[0062]
On the other hand, the holder 60b is a plate-like member having a flat mating surface 70 at the top as shown in FIGS. 7 and 10A, and is superposed on the FFC 10 via the mating surface 70. .
[0063]
Here, as shown in the figure, the FFC 10 of the present embodiment has a bifurcated structure in which the front end is divided into divided pieces 10a and 10b by cutting out the central portion (the central portion in the width direction). The ends of the divided pieces 10a and 10b are processed to expose the conductors 11, and a reinforcing plate 12 (reinforcing member) is laminated and fixed to the lower surface (rear surface) thereof. The holder 60b is overlapped with the divided piece 10a (10b).
[0064]
A rectangular recess 72 is formed in the rear part of the mating surface 60 of the holder 60b (the left part in FIG. 10A) in plan view, and is formed on the lower surface of the reinforcing plate 12 in the width direction. An engaging portion 12 b made of a protruding ridge is interposed in the recess 72. As shown in FIG. 10 (a), the dimension Wa in the front-rear direction of the engaging portion 12b is formed shorter than the dimension Wb in the front-rear direction of the recess 72, and the split piece 10a (10b) is formed on the holder 60b. In the overlapped state, the divided piece 10a (10b) is configured to be relatively displaceable in the front-rear direction with respect to the holder 60b. Further, when the front end surface of the engaging portion 12b comes into contact with the front side wall of the recess 72, as shown in the figure, the tip of the divided piece 10a (10b) projects forward from the mating surface 70 (right side in the figure). On the other hand, when the rear end surface of the engaging portion 12b comes into contact with the rear side wall of the recess 72, the reinforcing plate 12 is arranged so that the end portion of the split piece 10a (10b) and the front end of the mating surface 70 are substantially flush with each other. Are set in the front-rear direction with respect to the divided pieces 10a and (10b).
[0065]
A hook 73 for locking the holder 60b to the housing body 60a is provided on the outer side in the width direction of the holder 60b.
[0066]
In the configuration of the second connector C2, in order to hold the FFC 10 by the housing 60, first, the holder 60b is overlapped with the back surface of the split piece 10a (10b) via the mating surface 70, and from the overlapping portion of the FFC 10 With the rear side suspended from the rear end portion of the holder 60b, the holder 60b and the split piece 10a (10b) are integrally inserted into the housing body 60a along the guide portion 65 from the rear end side. Then, the hook 73 of the holder 60b is engaged with the side plate 63 of the housing body 60a through the locking hole 65a, thereby locking the holder 60b with respect to the housing body 60a.
[0067]
If it does in this way, as shown to Fig.10 (a), the front-end | tip of the division | segmentation piece 10a (10b) will be hold | maintained in the state which protruded to the front-end side of the housing main body 60a with the holder 60b. Further, the pressure bar 67 comes into contact with the rear end portion of the reinforcing plate 12 from the rear side of the divided piece 10a (10b) so that the pressure bar 67 is slightly bent (elastically deformed), and its repulsive force ( The tip portion (the portion of the reinforcing plate 12) of the divided piece 10a (10b) is biased forward by the elastic force due to elastic deformation), and the front end surface of the engaging portion 12b comes into contact with the front end wall of the recess 72. The tip of the split piece 10a (10b) is held in a state protruding from the tip of the holder 60b. At this time, as shown in the figure, the above-mentioned inverted truncated cone-shaped contact portion 67a of the pressure contact bar 67 contacts the bent portion of the split piece 10a (10b) at the rear end of the reinforcing plate 12, whereby the split piece 10a ( 10b) The reinforcing plate 12 is favorably urged by the pressure bar 67 from the rear side.
In order to connect using the flat wiring member connector according to the second embodiment configured as described above, the housing 50 of the first connector C1 is fixed to the circuit board side by a holder or the like not shown, The leg portions 54b of the terminals 54 are connected to the substrate with solder or the like.
[0068]
And the 2nd connector C2 is made to oppose the 1st connector C1, and as shown to Fig.10 (a), the division | segmentation piece 10a (10b) of FFC10 is connected to the 1st connector via the hood 57 and the insertion port 56A (56B). The housings 50 and 60 of both connectors C1 and C2 are fitted together while being inserted into the housing 50 of C1. As a result, the housing 60 of the second connector C2 starts to fit into the hood 57 of the housing 50 as shown in FIGS. 10B and 11A, and first, the tip of the split piece 10a (10b) Is brought into contact with the rear end 55 of the housing 50, and when the fitting state of the connectors C1 and C2 further advances, the housing 60 advances relative to the divided piece 10a (10b). On the other hand, the split piece 10a (10b) is pushed back. 10 (c) and 11 (b), when the tip of the holder 60b reaches a position where it abuts against the back end 55 of the connector C14, the front end of the housing 60 is completely fitted into the hood 57. The hook 69 is engaged with the hood 57 through the locking hole 57a. As a result, the second connector C2 is locked in a state of being fitted to the first connector C1.
[0069]
The protrusion 69 of the holder 60b is formed in a substantially trapezoidal shape in a tapered side view from the proximal end portion toward the distal end portion (see FIG. 10A). Therefore, the locked state is a so-called semi-locked state. When the second connector C2 is pulled in the pulling direction with a certain force or more, the locked state is released and the second connector C2 can be detached from the first connector C1. In this case, the respective knobs 68 of the second connector C2 are unlocked and set at the use positions, and the two knobs 68 are overlapped back to back as shown in FIG. By pulling out the second connector C2 from the first connector C1 while being picked at the same time with a fingertip or radio pliers or the like, the second connector C2 can be used even when the second connector C2 is small or in a narrow space, for example. Can be easily picked up, and the second connector C2 can be easily detached.
[0070]
When both the connectors C1 and C2 are in a completely fitted state, the conductor 11 of the divided piece 10a (10b) is pressed against the connecting bending piece 54a of each terminal 54 by the holder 60b, whereby the FFC 10 passes through each terminal 54. It will be in the state connected to the circuit of the circuit board side. On the other hand, as shown in FIG. 10C and FIG. 11B, the respective pressure contact bars 67 are bent as the leading end portion of the split piece 10 a (10 b) is pushed back with respect to the housing 60. Then, the tip of the split piece 10a (10b) is directed toward the rear end 55 of the housing 50 of the first connector C1 by the repulsive force (elastic force due to elastic deformation) caused by the bending of the pressure contact bar 67. It will be energized.
[0071]
In the fitting process of the connectors C1 and C2, the split piece 10a (10b) is pushed back against the housing 60 as described above. At this time, the tip of the split piece is flush with the tip of the mating surface 70. When it is pushed back to the position, the engaging portion 12b of the reinforcing plate 12 comes into contact with the rear side wall of the recess 72, thereby preventing further displacement of the divided piece 10a (10b). Therefore, even when the tip of the split piece 10a (10b) does not hit the back end 55 of the first connector C1 for some reason, when both the connectors C1 and C2 are finally in a completely fitted state, As shown in FIG. 10C and FIG. 11B, the leading ends of the split piece 10a (10b) and the holder 60b both come into contact with the back end 55 of the first connector C1. Therefore, the FFC 10 (divided pieces 10a and 10b) is not half inserted into the first connector C1.
[0072]
Also in the flat wiring material connector of the second embodiment as described above, when the two connectors C1 and C2 are fitted, the front end portion of the FFC 10 (divided pieces 10a and 10b) is on the rear end portion 55 side of the first connector C1. Since the front end portion is always held in contact with the rear end portion 55 of the housing 50, both the connectors C1 and C1, as in the flat wiring member connector of the first embodiment, are retained. The tip end portion of the FFC 10 can be reliably brought into contact with the back end portion 55 of the first connector C1 by simply performing a simple operation of fitting the housings 50 and 60 with C2 approaching. Further, it is possible to satisfactorily prevent the FFC 10 (divided pieces 10a, 10b) after the fitting of both the connectors C1, C2 from dropping from the first connector C1, or the displacement and fine sliding of the conductor 11 with respect to the terminal 54.
[0073]
Therefore, as in the first embodiment, the FFC 10 can be reliably prevented from being in a half-inserted state with a simple connection operation, and the connection state of the FFC 10 after fitting both the connectors C1 and C2 is good. Can be maintained.
[0074]
In the second connector C2 of the second embodiment, the housing main body 50a is provided with a pair of pressure contact bars 67 made of flexible pieces as elastic members, and the pressure contact bar 67 is repelled by pushing back the FFC 10 (divided pieces 10a, 10b). Although the FFC 10 is configured to be urged by force, the pressure bar 67 may be one and the shape thereof is not particularly limited as long as the FFC 10 can be favorably urged. However, as shown in the embodiment, a pair of straight pressure-contact bars 67 are provided so as to intersect with each other, and the tip portions of the pressure-contact bars 67 abut at equal positions from the center in the width direction of the FFC 10 (divided pieces 10a and 10b). By doing so, the FFC 10 (divided pieces 10a, 10b) can be urged with a uniform force in the width direction with a simple configuration. For example, the FFC 10 (divided pieces 10a, 10b, 10b) is energized, causing the FFC 10 (divided pieces 10a, 10b) to be tilted with respect to the insertion direction into the first connector C1 and causing troubles in contact with the mating terminal 54. Can be effectively avoided.
[0075]
Further, the elastic member can be any elastic member such as a leaf spring, a spring, or rubber, in addition to the bent piece, and its shape is not particularly limited as long as the FFC 10 can be favorably biased. Absent.
[0076]
【The invention's effect】
As described above, according to the connector for a flat wiring material of the present invention, the flat wiring is obtained by fitting the housing of the first connector that houses the terminal and the housing of the second connector that holds the flat wiring material to each other. Each conductor of the material is brought into contact with each terminal, and in this fitted state, the leading end portion of the flat wiring material is brought into contact with the back end portion in the insertion direction of the first connector and pushed back in the direction opposite to the insertion direction into the first connector. Since the tip of the flat wiring member is urged toward the back end side of the first connector by the repulsive force due to the pushing back, the first portion of the flat wiring member is fitted when the two connectors are fitted. The half-insertion state for one connector can be reliably prevented, and the flat wiring material can be effectively prevented from falling off after fitting both connectors. The shift and slight sliding body can be favorably prevented. Therefore, there is an effect that the flat wiring member can be reliably connected by a simple connection operation.
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view showing a flat wiring material connector (first connector and second connector) in which a flat wiring material connection structure according to the present invention (first embodiment) is employed.
FIG. 2 is a cross-sectional view showing a second connector.
FIG. 3 is an exploded perspective view showing a configuration of a second connector.
FIG. 4 is a cross-sectional plan view showing a configuration of a second connector.
FIG. 5 is a diagram illustrating an FFC connection structure and a connector connection procedure in a flat wiring material connector.
FIG. 6 is a perspective view showing a flat wiring material connector (first connector and second connector) in which the flat wiring material connection structure (second embodiment) according to the present invention is employed.
FIG. 7 is an exploded perspective view showing flat wiring material connectors (first connector and second connector).
FIG. 8 is a perspective view showing a flat wiring material connector (first connector and second connector) (as viewed from below);
FIG. 9 is a perspective view showing a housing body constituting the housing of the second connector.
FIG. 10 is a longitudinal sectional view showing a fitting state between the first connector and the second connector C2 ((a) a state where fitting is started, (b) is a state during fitting, (c) after fitting) State).
FIG. 11 is a plan sectional view showing a fitting state between the first connector and the second connector C2 ((a) shows a state in the middle of fitting, and (c) shows a state after the fitting).
FIG. 12 is a perspective view of the second connector and the first connector showing a state where the knob portion is raised to the use position.
FIG. 13 is a diagram illustrating an FFC connection structure and a connector connection procedure in a conventional flat wiring material connector.
[Explanation of symbols]
C1 first connector
C2 Second connector
10 FFC (Flat wiring material)
11 Conductor
12 Reinforcement plate (reinforcement member)
12a Hook (engagement part)
20,30 housing
24 terminals
40 Tongue piece (supporting part)

Claims (7)

The housing of the first connector that accommodates a large number of terminals in a row and the housing of the second connector that holds the flat wiring member are fitted together so that the flat wiring member is inserted into the housing of the first connector. A connection structure of a flat wiring material in which a tip portion is inserted and each conductor of the flat wiring material is brought into contact with each of the terminals,
In a state where the housings of both the connectors are fitted to each other, the front end portion of the flat wiring member abuts on the back end portion of the first connector and is inserted into the first connector relative to the housing of the second connector. tip portion is pushed back in the opposite direction to the direction, this by the push-back Ri flat wiring member in pressure contact with the elastic member provided in the housing of the second connector which is elastically deformed, the elastic force by the elastic deformation connecting structure of the flat wire member, characterized in that by Ri the flat wire member has its conductor and the terminal in a state of being urged to the rear end side of the first connector is in contact with. In the connection structure of the flat wiring material according to claim 1 ,
A reinforcing member is fixed to the distal end portion of the flat wiring member, and the reinforcing member is supported by the housing of the second connector in a state in which the reinforcing member can advance and retreat in the fitting direction with the first connector. the connector housing is provided engagement portions respectively for regulating the backward movement of the reinforcing member engage with each other, in a state where the two connector housings fitted, the both engagement portions are mutually engaged Rukoto A connection structure for flat wiring materials. It consists of a first connector that houses a large number of terminals in a row and a second connector that holds a flat wiring material, and the flat wiring is connected to the housing of the first connector by fitting the housings of both connectors together. A flat wiring material connector in which a leading end portion of a material is inserted so that each conductor of the flat wiring material is brought into contact with each terminal,
A support portion that supports the front end portion of the flat wiring member in the housing of the second connector so as to be able to advance and retreat in the fitting direction with the first connector, and the flat wiring member is moved backward from the support portion. And a hollow portion that allows the wiring material to bend along with it,
When the housings of the two connectors are fitted to each other, the leading end portion of the flat wiring member abuts on the back end portion of the first connector, and the insertion direction into the first connector relative to the housing of the second connector tip portion is pushed back in the opposite direction, the flat wiring member inner end of the first connector in the repulsive force due to this flexure this pushing back flat wire member in a state flexed within the hollow portion of the second connector connector for a flat wire member, characterized in that the flat wire member is held in so that is biased section side with respect to the second connector housing. In the connector for flat wiring materials according to claim 3 ,
Said second connector holds while bending in the hollow portion formed by bending substantially vertically flat wire member in the back side of the portion to be tolerated, with respect to the housing the rear side in the longitudinal direction than the bent portion A flat wiring material connector configured to be fixedly held . It consists of a first connector that houses a large number of terminals in a row and a second connector that holds a flat wiring material, and the flat wiring is connected to the housing of the first connector by fitting the housings of both connectors together. A flat wiring material connector in which a leading end portion of a material is inserted so that each conductor of the flat wiring material is brought into contact with each terminal,
Provided on the housing of the second connector is a support portion that supports a flat wiring member having a reinforcing member fixed to the tip so that the flat wiring member can be advanced and retracted in the fitting direction with the first connector, and on the back side of the support portion. And an elastic member that elastically abuts against the wiring member at a rear portion of the reinforcing member as the flat wiring member retreats,
When the housings of the two connectors are fitted to each other, the leading end portion of the flat wiring member abuts on the back end portion of the first connector, and the insertion direction into the first connector relative to the housing of the second connector tip portion is pushed back in the opposite direction to press the elastic member, the elastic by the elastic force of the member the flat wiring member so that the of the second connector is urged to the rear end side of the first connector A flat wiring material connector, wherein a flat wiring material is held against a housing. In the connector for flat wiring materials according to claim 5,
The elastic member, the connector for a flat wire member, characterized in Rukoto such a deflection piece resiliently deformed along with the retraction of the flat wire member. In the connector for flat wiring materials according to claim 6,
As the bending piece, it extends straight in an oblique direction with respect to the insertion direction of the flat wiring material to the first connector and intersects with each other, and the respective leading end portions come into contact with an equal position from the center in the width direction of the flat wiring material. A flat wiring material connector comprising a pair of flexible pieces .

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