JP4568561B2 - connector - Google Patents

Description

  The present invention relates to a connector for connecting, for example, a flexible printed circuit (FPC) or a flexible flat cable (FFC).

  Conventionally, as this type of connector, one end of a connection object such as an FPC or FFC (hereinafter referred to as a flexible circuit) is formed so that one end can be inserted into the front side, and the connector body is arranged in the width direction. There is known a device that includes a plurality of terminals and is configured such that a flexible circuit inserted into a connector main body is brought into contact with one end side of each terminal (for example, see Patent Document 1).

This connector is provided with an opening / closing member provided rotatably on the connector body. When the opening / closing member is rotated to a predetermined opening position, the flexible circuit can be inserted into and removed from the connector body, and the flexible circuit is inserted into the connector body. When the opening / closing member is rotated to the predetermined closed position, the flexible circuit and each terminal are pressed against each other, and the connection of the flexible circuit is completed.
JP 2002-231348 A

  By the way, in the connector, the other end side of each terminal is arranged on the back side of the connector body so as to be connected to the conductive portion of the substrate, but the other end side of each terminal is exposed to the outside, There is a problem in that dust and dust are easily attached, and when a conductive material such as a metal piece is attached, a terminal is short-circuited to cause a failure of a circuit component. Then, after connecting a flexible circuit, a connector main body may be covered with a cover, However Since a cover consists of another parts, there existed a problem that the attachment operation | work of a cover was needed while the number of parts increased.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a connector capable of preventing adhesion of dust, dust, etc. to each terminal without using a cover made of a separate part. There is to do.

In order to achieve the above object, the present invention has a connector body in which a connection object can be inserted into a predetermined position, one end side formed so as to be in contact with the connection object, and the other end side disposed outside the connector body. A plurality of terminals and an opening / closing member rotatably provided on the connector body are provided. When the opening / closing member is rotated to a predetermined closed position, the connection object and each terminal are in pressure contact, and the opening / closing member is predetermined in the opening direction. a connector which is adapted pressure contact with the pivots to position the connection object and the terminal is released, provided in the opening and closing member covers the other end of each the open closure site material is rotated to the closed position the terminal cover And an opening / closing member, and when the opening / closing member is rotated to a predetermined intermediate position between a predetermined open position and the closed position, one end side of each terminal is pressed in a predetermined direction to Elastically deformed to a position where the pressure contact can be released When the opening / closing member is rotated to the open position and the closed position, the pressing portion that releases the pressure to each terminal and presses each terminal against the connection object, and the rotation of the opening / closing member from the open position side to the closed position side And a rotation restricting means for restricting the rotation from the closed position side to the open position side rather than the intermediate position .

As a result, when the opening / closing member is rotated to the closed position, the other end side of each terminal is covered by the cover portion provided on the opening / closing member. And dust do not adhere. In this case, when the opening / closing member is rotated to the open position and the closed position, the pressing by the pressing portion is released, and when the opening / closing member is rotated to the intermediate position, each terminal is pressed by the pressing portion. Therefore, even when a long time has passed with the open / close member in the open position, the terminals are not pressed by the pressing portion in the open position. In addition, after connecting the connection target by rotating the opening / closing member to the closed position, if the opening / closing member is rotated to the open position side when releasing the connection, the rotation of the opening / closing member is restricted at the intermediate position. Therefore, the opening / closing member does not rotate to the closed position side from the intermediate position.

According to the connector of the present invention, it is possible to prevent dust and dust from adhering to each terminal, so that it is possible to reliably prevent short-circuiting of the terminal due to adhesion of a conductive material such as a metal piece, and separate parts. Since there is no need to use a cover made of, there is an advantage that the number of parts is not increased and the cover is not attached. Also, even when a long time has passed with the opening / closing member in the open position, the terminals are not pressed by the pressing portion in the open position, so that the movable piece portion of each terminal does not cause permanent distortion. There are advantages. Further, after turning the opening / closing member to the closed position and connecting the connection object, when releasing the connection, if the opening / closing member is turned to the open position side, the opening / closing member is turned to the closed position side from the intermediate position. Therefore, the opening / closing member can be reliably positioned at the intermediate position.

  1 to 8 show an embodiment of the present invention. FIG. 1 is a front perspective view of a connector, FIG. 2 is a rear perspective view thereof, FIG. 3 is a front view thereof, and FIG. 4 is a side view thereof. FIG. 5 is a side sectional view thereof, FIG. 6 is a rear perspective view showing the operation, FIG. 7 is a side sectional view showing the operation, and FIG. 8 is a side view showing the operation.

  This connector includes a connector main body 10 into which one end side of the flexible circuit 1 as a connection object is inserted, a plurality of terminals 20 arranged at equal intervals in the width direction on the connector main body 10, and the connector main body 10 is rotatable. And an opening / closing member 30 provided on the connector body 10 and a ground member 40 attached to the connector main body 10.

  The flexible circuit 1 is formed of a so-called flexible flat cable (FFC) or flexible printed circuit (FPC), and a plurality of electrical contacts (not shown) are provided at intervals in the width direction on the lower surface on the tip side. A ground portion (not shown) is provided on the upper surface in the width direction.

  The connector body 10 is made of a synthetic resin molded product, and an opening 10a for inserting the flexible circuit 1 is provided on the front surface thereof. That is, the connector body 10 includes a front surface portion 11, an upper surface portion 12, a bottom surface portion 13, and left and right side surface portions 14, and a plurality of terminal holes 12 a that hold the terminals 20 are arranged in the width direction on the back surface side of the upper surface portion 12. It is provided at equal intervals. Further, the upper surface portion 12 is provided with a groove 12b into which the ground member 40 is press-fitted, and the groove 12b opens forward in the upper portion of the opening portion 10a. Each side surface portion 14 is provided with a bearing portion 14a that rotatably supports the opening and closing member 30, and the bearing portion 14a is formed in a substantially semicircular cross section with the upper surface side open.

  Each terminal 20 is made of a conductive metal plate, and is held by press-fitting into each terminal hole 12a of the connector body 10 from the back side. One end of each terminal 20 is provided with a fixed piece 21 and a movable piece 22 that extend in a bifurcated manner at a distance from each other in the vertical direction. The movable piece 22 is formed to be elastically deformable in the vertical direction. Yes. The fixed piece portion 21 extends in the front-rear direction along the upper surface rear end side of the connector main body 10, and the distal end side thereof is press-fitted into the terminal hole 12 a of the upper surface portion 12. A contact portion 22a that contacts the contact of the flexible circuit 1 is provided on the distal end side of the movable piece portion 22, and the contact portion 22a is formed so as to protrude upward in a mountain shape. In addition, a concave portion 22b serving as an engaging portion that engages with the opening / closing member 30 side is provided at substantially the center in the longitudinal direction of the movable piece portion 22. The other end side of each terminal 20 extends in the vertical direction along the back surface of the connector body 10 and is disposed so as to be exposed to the outside from the back surface side of the connector body 10. Further, a connection portion 23 connected to a substrate (not shown) is provided on the other end side of each terminal 20, and the connection portion 23 is formed to extend rearward from the lower end of the terminal 20.

  The opening / closing member 30 is made of a synthetic resin molded product, and is formed in a substantially L shape so as to cover the rear upper surface side and the rear surface side of the connector body 10. Support shaft portions 31 projecting in the width direction are provided on both side surfaces on one end side of the opening / closing member 30, and each support shaft portion 31 is rotatably engaged with the bearing portion 14 a of the connector main body 10. In addition, a rotation portion 31a that rotates integrally with the support shaft portion 31 is provided on the distal end side of the support shaft portion 31, and a protrusion 31a that is engaged with the ground member 40 side at a predetermined circumferential position of the rotation portion 31a. Is provided. A plurality of terminal insertion holes 30a through which the fixed piece portions 21 of the terminals 20 are inserted are provided at equal intervals in the width direction on one end side of the opening / closing member 30, and each terminal 20 is provided on one end side in each terminal insertion hole 30a. A pressing portion 32 that presses the movable piece portion 22 downward is provided. The pressing portion 32 is formed in a cam shape extending in a predetermined direction from the rotation center of the opening / closing member 30 and is rotated integrally with the opening / closing member 30.

  That is, as shown in FIG. 7A, when the opening / closing member 30 is in the open position (a position where one end side of the opening / closing member 30 forms approximately 90 ° with respect to the horizontal direction), the tip of the pressing portion 32 is at the movable piece portion 22. Located on the rear end side, the pressure on the movable piece 22 is released. Further, as shown in FIG. 7C, when the opening / closing member 30 is in the closed position (a position where one end side of the opening / closing member 30 forms approximately 0 ° with respect to the horizontal direction), the tip of the pressing portion 32 is located at the movable piece portion 22. Located on the front end side, the pressure on the movable piece 22 is released. Further, as shown in FIG. 7B, when the opening / closing member 30 is at a predetermined intermediate position between the open position and the closed position (position where one end side of the opening / closing member 30 forms approximately 45 ° with the horizontal direction) The distal end of the pressing portion 32 is in contact with the substantially longitudinal center of the movable piece portion 22 so as to press the movable piece portion 22 downward. At that time, the distal end of the pressing portion 32 engages with the concave portion 22 b of the movable piece portion 22.

  A cover portion 33 that covers the other end side of each terminal 20 is provided on the other end side of the opening / closing member 30. When the opening / closing member 30 is rotated to the closed position, the cover portion 33 is positioned on the back side of the connector body 10. It has become. In this case, a notch 33 a corresponding to the connection portion 23 of each terminal 20 is provided at one end of the cover portion 33, and when the other end side of each terminal 20 is covered by the cover portion 33, the connection portion 23 of each terminal 20 is It is located in the notch 33a.

  The ground member 40 is made of a conductive metal plate extending in the width direction of the connector body 10, and is fixed to the connector body 10 by press-fitting the center in the width direction into the groove 12 b of the connector body 10. A contact portion 41 that contacts the flexible circuit 1 is provided on the center side in the width direction of the ground member 40, and the contact portion 41 is formed so as to be positioned on the front end side of the opening 10 a. In this case, the contact portion 41 extends obliquely downward toward the rear and is formed to be elastically deformable in the vertical direction. Both end sides in the width direction of the ground member 40 are formed in a substantially U shape so as to cover the front end side of the side surface portion 14 of the connector body 10, and the lower end side thereof forms a connection portion 42 connected to the substrate. In addition, a locking piece 43 that locks the protrusion 31 a of the opening / closing member 30 is provided on both ends in the width direction of the ground member 40, and the locking piece 43 is formed to extend rearward from the upper surface side of the ground member 40. Yes. In this case, the bearing part 14a of the connector main body 10 is covered from above by the locking piece 43, and the support shaft part 31 is held in the bearing part 14a.

  That is, as shown in FIG. 8 (a), when the opening / closing member 30 is in the open position, the protrusion 31b of the rotating portion 31a is located on the lower surface side, and FIG. 8 (b) and FIG. 8 (c). As shown, when the opening / closing member 30 is rotated from the intermediate position to the closed position, the locking piece 43 is allowed to pass through the protrusion 31b while elastically deforming upward, thereby allowing the rotating portion 31a to rotate. It has become so. Further, when the opening / closing member 30 is rotated from the closed position side to the intermediate position, as shown in FIG. 8 (b), the protrusion 31b is locked to the tip of the locking piece 43, and the rotation of the rotating portion 31a is restricted. It has become so. That is, the rotation restricting means is constituted by the rotation portion 31 a, the protrusion 31 b and the locking piece 43.

  The connector configured as described above is assembled with the opening / closing member 30 in the open position. Further, when the connector is mounted on the board, as shown in FIGS. 6 (a), 8 (a) and 8 (a), the connecting portion 23 and the ground of each terminal 20 with the opening / closing member 30 in the open position. The connection portion 43 of the member 40 is connected to the substrate by soldering. At this time, since the other end side of each terminal 20 is not covered with the cover portion 33 of the opening / closing member 30, the cover portion 33 does not hinder the soldering operation. In addition, since the pressing to the terminals 20 by the pressing portions 32 of the opening / closing member 30 is released in the open position, even when a long time has passed with the opening / closing member 30 being in the open position, the movable piece portion of each terminal 20 22 does not cause permanent distortion.

  Next, after the connector is mounted on the board, when the opening / closing member 30 is rotated to the intermediate position as shown in FIGS. 6 (b), 8 (b) and 8 (b), the movable piece of each terminal 20 is moved. 22 is pressed downward by the pressing portion 32 and displaced to a position where it does not come into pressure contact with the flexible circuit 1 inserted into the opening 10a. Thereby, the flexible circuit 1 is inserted without receiving frictional resistance due to contact with the movable piece portion 22, and the contact portion 41 of the ground member 40 contacts the upper surface of the flexible circuit 1. Further, at the intermediate position of the opening / closing member 30, the opening / closing member 30 is inadvertently held because the opening / closing member 30 is held at the intermediate position by engaging the tip of the pressing portion 32 with the recess 22b of the movable piece portion 22. There is no rotation.

  Subsequently, after the flexible circuit 1 is inserted into the connector main body 10, when the opening / closing member 30 is rotated to the closed position as shown in FIGS. 6 (c), 8 (c) and 8 (c), the pressing portion 32. The pressure on each terminal 20 is released, the contact portion 22a is pressed against the lower surface of the flexible circuit 1 by the elastic force of the movable piece portion 22, and each terminal 20 and the flexible circuit 1 are connected. Further, when the opening / closing member 30 is rotated to the closed position, the other end side of each terminal 20 is covered with the cover portion 33 of the opening / closing member 30, so that external dust or dust adheres to the other end side of each terminal 20. There is nothing to do.

  Thus, according to the connector of this embodiment, when the opening / closing member 30 is rotated to the closed position, the other end side of each terminal 20 is covered by the cover portion 33 provided on the opening / closing member 30. External dust and dust do not adhere to the other end side of 20, and a short circuit of the terminal 20 due to adhesion of a conductive material such as a metal piece can be reliably prevented. In this case, since the cover portion 33 is provided on the opening / closing member 30, there are advantages that the number of parts does not increase and the cover mounting work is not required as compared with the case where a cover made of another part is used.

  The opening / closing member 30 is provided with a pressing portion 32 that is elastically deformed to a position where the pressure contact with the flexible circuit 1 can be released by pressing one end side of each terminal 20 downward, so that the opening / closing member 30 is in the open position and the closed position. When it is rotated, the pressing to the terminals 20 by the pressing portion 32 is released, and when the opening / closing member 30 is rotated to the intermediate position, each terminal 20 is pressed by the pressing portion 32. Even when a long period of time has passed with the terminals 30 in the open position that does not interfere with the soldering operation of the terminals 20, the terminals 20 are not pressed by the pressing portions 32 in the open position. There exists an advantage that the part 22 does not produce permanent distortion.

  Furthermore, the opening / closing member 30 is allowed to rotate from the open position side to the closed position side, and the rotation from the closed position side to the open position side rather than the intermediate position is restricted, so the opening / closing member 30 is closed. When the opening / closing member 30 is turned to the open position side when the connection is released after turning to the position and connecting the flexible circuit 1, the opening / closing member 30 is regulated at the intermediate position. The opening / closing member 30 can be reliably positioned at the intermediate position without the pivot 30 being closer to the closed position than the intermediate position.

  In this case, when the opening / closing member 30 is rotated from the intermediate position to the closed position, the locking piece 43 allows the rotation of the rotating portion 31a by allowing the protrusion 31b to pass while elastically deforming upward, thereby opening and closing the opening / closing member. When 30 is rotated from the closed position side to the intermediate position, the protrusion 31b is locked to the tip of the locking piece 43 to restrict the rotation of the rotating portion 31a. It can be surely regulated by a simple configuration, which is extremely advantageous for practical use.

  Further, since the locking piece 43 is provided integrally with the ground member 40, it is not necessary to form the locking piece 43 by a dedicated separate part, and the number of parts can be reduced.

  Further, each terminal 20 is provided with a recess 22b that engages with the pressing portion 32 of the opening / closing member 30 rotated to the intermediate position, and the opening / closing member 30 is held at the intermediate position by the engagement between the pressing portion 32 and the recess 22b. Therefore, the opening / closing member 30 is not inadvertently rotated from the intermediate position to the closed position side, and the flexible circuit 1 can be inserted / removed without any trouble.

  In the embodiment, as the rotation restricting means of the opening / closing member 30, the locking piece 43 provided on the ground member 40 is engaged with the protrusion 31b provided on the turning portion 31a of the opening / closing member 30. As shown, the rotation of the opening / closing member 30 may be restricted by another configuration, such as providing the connector main body 10 with a locking portion with the protrusion 31b.

The front side perspective view of the connector which shows one Embodiment of this invention Rear perspective view of the connector Front view of connector Connector side view Side sectional view of connector Rear side perspective view showing connector operation Side sectional view showing connector operation Side view showing connector operation

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Flexible circuit, 10 ... Connector main body, 20 ... Terminal, 30 ... Opening / closing member, 31a ... Turning part, 31b ... Projection, 33 ... Cover part, 40 ... Ground member, 43 ... Locking piece.

Claims (4)

A connector body that allows insertion of a connection object into a predetermined position, a terminal that is formed so that one end can be contacted with the connection object, and the other end is disposed outside the connector body, and the connector body is rotatable. When the opening / closing member is rotated to a predetermined closed position, the connection object and each terminal are brought into pressure contact, and when the opening / closing member is rotated to a predetermined position in the opening direction, the connection object and each terminal In the connector so that the pressure contact with is released
Provided in the closing member, the opening closure site material is rotated to the closed position and the cover portion covering the other end side of each terminal,
Provided in the opening / closing member, when the opening / closing member is rotated to a predetermined intermediate position between a predetermined open position and the closed position, the one end side of each terminal is pressed in a predetermined direction to press contact with the connection object. A pressing portion that elastically deforms to a releasable position and releases the pressure on each terminal when the opening and closing member is rotated to the open position and the closed position, and presses each terminal against the connection object;
A rotation restricting means for allowing the opening / closing member to rotate from the open position side to the closed position side and restricting the rotation from the closed position side to the open position side than the intermediate position is provided. connector. The rotation restricting means comprises a rotating part that rotates integrally with the opening / closing member, and a locking piece that can be locked to a protrusion provided at a predetermined position in the circumferential direction of the rotating part,
By allowing the locking piece to pass through the protrusion of the rotating portion that rotates from the open position side to the closed position while being elastically deformed, the rotating portion is allowed to rotate and is rotated from the closed position side to the open position side. connector according to claim 1, characterized in that formed so as to restrict the rotation of the rotation unit by engaging the projections of the rotation unit for moving the tip by the intermediate position. Comprising a conductive ground member in contact with the ground portion of the connection object;
The connector according to claim 2, wherein the locking piece is provided integrally with the ground member. The connector according to claim 1, 2, or 3, wherein each terminal is provided with an engaging portion that engages with a pressing portion of an opening / closing member rotated to an intermediate position.

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