JP2015046355A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat cable connector which is advantageous for lowering the height and is suitable for attachment/removal.SOLUTION: A connector 1 comprises: a housing 10; a plurality of contacts 20; and a reinforcement plate 30. The housing 10 has a hook 12 which is erected toward the reinforcement plate 30. Further, the connector 1 has, on the reinforcement plate 30, a lock bar 40 which is supported in such a manner as to be rotatable in an arrow C-D direction and slidable in an arrow A-B direction. If the lock bar 40 is slid toward the arrow B and rotated toward the arrow D, the hook 12 is locked to the lock bar 40. If the lock bar 40 is rotated toward the arrow C and slid toward the arrow A, the engagement between the hook 12 and the lock bar 40 is released so that the reinforcement plate 30 is removed from the housing 10.

Description

  The present invention relates to a connector for connecting a flat cable to a circuit board.

  2. Description of the Related Art Conventionally, a connector for connecting a flat cable typified by a flexible flat cable (FFC) or a flexible printed circuit (FPC) to a circuit board is known.

  For example, Patent Document 1 discloses an electrical connector for FPC connection. A metal reinforcing plate is joined to the end portion of the FPC connected to the electrical connector. The electrical connector is provided with a pair of fixing brackets for fixing the FPC. The fixing brackets are erected on portions corresponding to both sides of the FPC. When the FPC is pushed into a region between the pair of fixing brackets of the electrical connector, the fixing bracket is pushed away by the FPC and the reinforcing plate and elastically deforms. When the FPC is completely pushed in, the fixing bracket returns from the deformation and is locked to the upper surface of the fixing bracket.

  However, the electrical connector of Patent Document 1 has a structure in which the fixing bracket is locked to the upper surface of the reinforcing plate joined to the FPC, so that there is a problem that the electrical connector becomes taller.

  Further, Patent Document 2 discloses a connector having a so-called detent lock mechanism that is not for a flat cable but has little bending. Adopting this detent lock mechanism for a flat cable connector is advantageous in reducing the height.

  However, this detent lock mechanism cannot ensure the amount of bending, and requires a large pulling force when removing the flat cable from the circuit board. In addition, if the attachment and detachment are repeated, the lock portion is scraped, and there is a possibility that reliable locking becomes difficult or the lock itself becomes impossible.

  Patent Document 3 discloses a connector that locks both connectors by locking a pull bar that is pivotally supported by the plug-side connector to a protrusion of the board-side connector.

  In the case of this connector, although a relatively high connector holding force can be obtained by locking the free end of the pull bar and the protruding portion, the protruding portion may be scraped and may not be able to withstand many insertions and removals.

  Further, Patent Document 4 discloses a connector that locks both connectors by engaging a part of a pull bar pivotally supported by the plug connector with the back side of the receptacle connector.

  In the case of this connector, the pull bar is prevented from being lifted by the engagement of the convex portion on the inner side of the pull bar and the concave portion on the outer surface of the receptacle connector, but the pull bar may not be engaged many times due to the shaving of the convex portion and the concave portion.

Japanese Utility Model Publication No. 6-60081 Japanese Utility Model Publication No. 6-15276 JP 2005-267777 A JP 2013-41680 A

  In view of the above circumstances, an object of the present invention is to provide a flat cable connector that is advantageous in reducing the height and is strong in attachment and detachment.

The connector of the present invention that achieves the above object provides:
A plurality of contacts to which one end of a flat cable in which a plurality of wires are arranged is pressed to connect each of the plurality of wires;
A housing that supports the plurality of contacts and is attached to the substrate;
A connector comprising a reinforcing plate fixed to one end of a flat cable so as to sandwich the one end between the flat cable,
The housing has a flange that protrudes toward the reinforcing plate and has a bent tip.
The connector further extends in a rod shape and is engaged with the hook locking part, and extends away from the hook locking part and substantially parallel to the hook locking part. A lock bar having a reinforcing plate locking portion that performs locking, and a connecting portion that extends between the hook locking portion and the reinforcing plate locking portion and connects the hook locking portion and the reinforcing plate locking portion. Prepared,
The reinforcing plate is
The buttock locking portion is supported so as to be rotatable and slidable in a direction crossing the extending direction of the rod locking portion of the buttock locking portion. A locking position where the locking part is locked to the flange and the one end of the flat cable is pressed against the reinforcing plate toward the housing, and a removal position where the locking with the hook is released and the reinforcing plate is removed from the housing A buttock locking part supporting part to be moved between,
When the hook engaging portion is locked to the reinforcing plate engaging portion when the hook engaging portion is in the locked position and the reinforcing plate engaging portion receives a force of a strength higher than a predetermined level, And a lock bar locking portion that allows rotation with the portion locking portion as a rotation axis.

  In the connector of the present invention, the housing includes the above-described flange portion, and further includes a lock bar, and the reinforcing plate supports the lock portion of the lock bar so as to be rotatable and slidable. Can be securely locked by being engaged with the lock bar.

  Further, by rotating and further sliding the lock bar, the lock bar is released from the engagement with the collar portion, and the flat cable can be easily removed. In the case of this structure, even if a detent lock mechanism is adopted, it is strong in mounting and dismounting, and is advantageous in reducing the height.

Here, in the connector of the present invention,
The flange is provided at each of both ends of the connector in the arrangement direction of the plurality of wires,
A lock bar is formed by bending a single bar-shaped member, and is provided at each of both ends of the reinforcing plate in the arrangement direction of the plurality of wirings, and a pair of hook engaging portions extending on the same straight line in the arrangement direction , Having one reinforcing plate locking portion extending between both end portions, and a pair of connecting portions connecting each one hook locking portion and reinforcing plate locking portion at each of the both end portions. It is preferable.

  In the case of this structure, the left and right hooks can be unlocked together by operating one lock bar, and the operation becomes easy.

In the connector of the present invention,
It is fixed to the reinforcing plate locking portion, and is picked and pulled by the operator, thereby releasing the locking from the lock bar locking portion to the reinforcing plate locking portion locked to the lock bar locking portion. It is preferable to provide a pull tab that provides an orientation force.

  By providing this pull tab, the unlocking operation is further facilitated.

  According to the connector of the present invention as described above, a flat cable connector that is advantageous in reducing the height and is strong in attachment and detachment is realized.

It is a perspective view of the connector as one embodiment of the present invention. It is a perspective view when the connector shown in FIG. 1 is seen from a viewpoint different from FIG. It is a disassembled perspective view of the connector shown by the perspective view in FIG. It is the disassembled perspective view which showed the state by which the reinforcement board of the connector shown in FIGS. 1-3 was adhere | attached on the flat cable. It is a perspective view (A) and a side view of a connector in a state where a reinforcing plate is fixed to a housing. A perspective view as seen from an angle different from the perspective view (A), the side view (B), and (A), showing the state in which the pull tab is pulled up and the lock bar is rotated in the direction of the arrow C accordingly. It is a figure (C). FIG. 7 is a perspective view showing the connector in a state where the lock bar in the state shown in FIG. 6 is moved in the direction of arrow A, as seen from an angle different from the perspective view (A), the side view (B), and (A). is there.

  Hereinafter, embodiments of the connector of the present invention will be described.

  1 and 2 are perspective views of a connector as one embodiment of the present invention when viewed from different viewpoints.

  FIG. 3 is an exploded perspective view of the connector shown in perspective views in FIGS.

  As shown in FIG. 3, the connector 1 includes a housing 10, a plurality of contacts 20 arranged in two rows, and a metal reinforcing plate 30. The flat cable 100 is sandwiched between the housing 10 and the reinforcing plate 30.

  1 to 3, the flat cable 100 is shown only at one end portion in order to avoid the complexity of illustration. A plurality of wires (not shown) are arranged on the flat cable 100. A plurality of terminal patterns (not shown) each corresponding to one of a plurality of wirings are formed on the surface of the flat cable 100 facing one side of the housing 10 toward the housing 10 side. ing. The flat cable 100 is sandwiched between the housing 10 and the reinforcing plate 30 as shown in FIGS. When sandwiched in this way, each of the plurality of terminal patterns formed at one end of the flat cable 100 is pressed against each of the plurality of contacts 20 arranged to be in an electrically conductive state.

  Each of the plurality of contacts 20 has a shape soldered to the surface of a circuit board (not shown) on which the housing 10 is mounted, and is fixed to the circuit board. In addition, the housing 10 is fixed to the circuit board by a first flange 12 and a second flange 13 which will be described later function as solder pegs.

  A pair of bosses 11 are erected on the housing 10. On the other hand, a pair of holes 101 and 31 are formed at positions corresponding to the pair of bosses 11 of the flat cable 100 and the reinforcing plate 30, respectively. As shown in FIG. 1, when the reinforcing plate 30 is attached to the housing 10 with the flat cable 100 sandwiched between the reinforcing plate 30 and the housing 10, the bosses 11 of the housing 10 are inserted into the holes 101 and 31. To do. This insertion prevents the flat cable 100 and the reinforcing plate 30 from inadvertently moving with respect to the housing 10.

  In addition, the end of one long side of the housing 10 is erected toward the reinforcing plate 30, and the tip is bent in the direction in which the flat cable 100 extends (the direction of arrow A shown in FIGS. 1 to 3). A pair of left and right first flanges 12 are formed. Further, the end of the long side on the opposite side of the housing 10 is erected toward the reinforcing plate 30, and the tip is bent in a direction away from the flat cable 100 (the direction of arrow B shown in FIGS. 1 to 3). A pair of left and right second collars 13 having a shape are provided.

  The connector 10 further includes a single lock bar 40.

  The lock bar 40 is a member formed by bending a single metal rod-shaped member. The lock bar 40 includes a pair of left and right flange locking portions 41, a single reinforcing plate locking portion 42, and a pair of left and right connecting portions 43. A pull tab 50 is fixed to the reinforcing plate locking portion 42. The pair of left and right flange portions 41 is engaged with the pair of left and right first flange portions 12 of the housing 10. Further, the reinforcing plate locking portion 42 is separated from the flange locking portion 41 and extends substantially parallel to the flange locking portion 41, and bears locking to the reinforcing plate 30.

  Further, the pair of left and right connecting portions 43 extend between the pair of flange locking portions 41 and the reinforcing plate locking portions 42, and connect each of the hook locking portions 41 and the reinforcing plate locking portions 42. Yes.

  The reinforcing plate 30 rotatably supports the hook engaging portion 41 of the lock bar 40. Thereby, the reinforcement board latching | locking part 42 can rotate to the arrow CD direction shown in FIG. 2 by setting the collar latching | locking part 41 of the lock bar 40 as a rotating shaft. Further, the reinforcing plate 30 supports the flange locking portion 41 of the lock bar 40 in a direction that intersects with the direction of the rod locking portion 41 extending in a rod shape, that is, in the direction of arrows AB. doing. Although the details will be described later, the hook locking part 41 of the lock bar 40 moves to the lock position where it locks to the first hook 12 by sliding in the direction of arrow B. Further, when the flange locking portion 41 slides in the direction of the arrow A, the locking with the first flange 12 is released and the reinforcing plate 30 moves to the removal position where it is removed from the housing 10. .

  When the first hook portion 12 is locked to the hook portion locking portion 41 in the locked position, the flat cable 100 is pressed toward the housing 10 by the reinforcing plate 30, and the terminal pattern of the flat cable 100 is brought into contact with the contact 20. Contact securely.

  The reinforcing plate 30 is provided with locking projections 36 that are locked to the reinforcing plate locking portion 42 of the lock bar 40 at two positions on the left and right sides. This reinforcing plate locking portion 42 is rotated in the direction of arrow D when the collar locking portion 41 of the lock bar 40 is in the locked position moved in the direction of arrow B, and the engagement of the reinforcing plate 30 Lock to the stop protrusion 36. When the pull tab 50 is pulled up in the direction of the arrow C and a force of a predetermined level or more is applied to the reinforcing plate locking portion 42, the reinforcing plate locking portion 42 is detached from the locking protrusion 36 of the reinforcing plate 30 and the arrow C Lift up in the direction. This locking projection corresponds to an example of the lock bar locking portion according to the present invention.

  FIG. 4 is an exploded perspective view showing a state in which the reinforcing plate of the connector shown in FIGS. 1 to 3 is bonded to the flat cable.

  Since this connector 1 has a bilaterally symmetric structure as shown in FIGS. 1 to 3, only half (one side) of this connector 1 is shown in each of the drawings after FIG. 4 in order to avoid the complexity of illustration. ing.

  FIG. 3 shows an exploded perspective view of the reinforcing plate 30 and the flat cable 100 separated from each other. However, at the stage of use, as shown in FIG. 4, the reinforcing plate 30 is in a state of being bonded and fixed to the flat cable 100 with, for example, an adhesive. Therefore, this connector 1 means that the reinforcing plate 30 is attached to the housing 10, that is, the terminal pattern of the flat cable 100 is pressed against the contact 20. Similarly, removing the reinforcing plate 30 from the housing 10 means that the contact between the terminal pattern of the flat cable 100 and the contact 20 is cut off.

  FIG. 5 is a perspective view (A) and a side view of the connector in a state where the reinforcing plate is fixed to the housing.

  In FIG. 5, the lock bar 40 is in a state in which the hook engaging portion 41 is in the locked position, and the reinforcing plate engaging portion 42 of the lock bar 40 is engaged with the engaging protrusion 36 of the reinforcing plate 30. is there.

  The reinforcing plate 30 of the connector 1 is pressed against the housing 10 from above when the lock bar 40 is in the posture shown in FIG. Then, the lock bar 40 is slightly bent, and the first hook 12 is locked to the hook engaging part 41 of the lock bar 40. The reinforcing plate 30 has a hole 35 into which the second flange 13 is inserted from below. When the reinforcing plate 30 is pressed against the housing 10 from above, the second flange 13 enters the hole 35 and is locked to the reinforcing plate 30. As shown in FIGS. 3 and 4, chamfered or rounded portions are formed at the upper corners of the first flange portion 12 and the second flange portion 13. Moreover, the 1st collar part 12, the 2nd collar part 13, the reinforcement board 30, and the lock bar 40 are all metal. For this reason, when the reinforcing plate 30 is attached to the housing 10 by snap engagement, these parts are hardly scraped.

  In this way, the reinforcing plate 30 is stably locked with respect to the housing 10. In this locked state, the flat cable 100 is pressed by the reinforcing plate 30 so as to contact the contact 20 firmly.

  FIG. 6 is an angle different from the perspective view (A), the side view (B), and (A) showing a state where the pull tab is pulled up and the lock bar is rotated in the direction of the arrow C accordingly. It is the perspective view (C) seen from.

  When the pull tab 50 is pulled up with a certain degree of strength, the reinforcing plate locking portion 42 of the lock bar 40 is disengaged from the locking projection 36 of the reinforcing plate 30, and the collar locking portion 41 is rotated as shown in FIG. The reinforcing plate locking portion 42 is lifted as an axis.

  At this stage, the flange locking portion 41 remains locked to the first flange 12 of the housing 10.

  7 shows the connector in a state where the lock bar in the state shown in FIG. 6 is moved in the direction of arrow A, and is viewed from an angle different from the perspective view (A), the side view (B), and (A). FIG.

  As described above, the reinforcing plate 30 supports the hook locking portion 41 of the lock bar 40 so as to be rotatable and slidable. Therefore, the pull tab 50 is lifted as shown in FIG. 6, and the lock bar 40 is further moved in the direction of arrow A. Then, due to this movement, the engagement between the first flange portion 12 of the housing 10 and the flange portion locking portion 41 of the lock bar 40 is released. When the reinforcing plate 30 is lifted up so as to be separated from the housing 10 in a state where this locking is released, the locking between the second flange 13 and the reinforcing plate 30 is also released, and the reinforcing plate 30 is removed from the housing 10. . The removal of the reinforcing plate 30 from the housing 10 is performed in a state in which the engagement between the first flange portion 12 and the lock bar 40 is released. Therefore, the first flange portion 12 and the second flange are removed by this removal. The portion 13 is prevented from being scraped. Moreover, according to this structure, the 1st collar part 12 and the 2nd collar part 13 do not need the bending which requires a big space, the height dimension is short and the low height of the connector 1 is implement | achieved. To do.

DESCRIPTION OF SYMBOLS 1 Connector 10 Housing 11 Boss 12 1st collar part 13 2nd collar part 20 Contact 30 Reinforcement board 36 Engagement protrusion 40 Lock bar 41 Buttage latching part 42 Reinforcement board latching part 43 Connecting part 50 Pull tabs 31 and 35 , 101 hole 100 flat cable

Claims (3)

A plurality of contacts to which one end of a flat cable in which a plurality of wires are arranged is pressed to connect each of the plurality of wires;
A housing supporting the plurality of contacts and attached to the substrate;
A connector comprising a reinforcing plate fixed to the one end of the flat cable so as to sandwich the one end between the flat cable,
The housing includes a flange that protrudes toward the reinforcing plate and has a bent tip.
The connector further extends in a rod shape and bears a hook locking portion that locks the hook, and is spaced apart from the hook locking portion and extends substantially parallel to the hook locking portion to the reinforcing plate. A reinforcing plate locking portion that is responsible for locking, and a connecting portion that extends between the hook locking portion and the reinforcing plate locking portion, and that connects the hook locking portion and the reinforcing plate locking portion. A lock bar having
The reinforcing plate is
The collar part locking part is supported so as to be rotatable and slidable in a direction intersecting with the bar-shaped extending direction of the collar part locking part. The hook locking part is locked to the hook part, and the locking position for pressing the one end part of the flat cable against the housing against the reinforcing plate and the hook part are released. A buttock locking portion supporting portion for moving the reinforcing plate between a removal position for removing the reinforcing plate from the housing;
When the flange engaging portion is engaged with the reinforcing plate engaging portion when the hook engaging portion is in the locked position, and the reinforcing plate engaging portion receives a force of a strength higher than a predetermined level, the reinforcing plate engaging portion A connector, comprising: a locking bar locking portion that allows rotation of the locking portion around the collar locking portion as a rotation axis. The flanges are provided at both ends of the connector in the arrangement direction of the plurality of wires,
The lock bar is formed by bending a single rod-shaped member, and is provided at each of both ends of the plurality of wirings in the arrangement direction of the reinforcing plate and extends along the same straight line in the arrangement direction A locking portion, a single reinforcing plate locking portion extending between the both end portions, and a pair connecting each one of the hook locking portion and the reinforcing plate locking portion at each of the both end portions. The connector according to claim 1, further comprising: the connecting portion.   It is fixed to the reinforcing plate locking portion, and is picked and pulled by an operator, so that the reinforcing plate locking portion in the state locked to the lock bar locking portion is engaged with the engagement from the lock bar locking portion. The connector according to claim 1, further comprising a pull tab that applies a force in a direction to release the stop.

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