JP4028497B2 - connector - Google Patents

Description

The present invention relates to a connector for connecting a flat connection object and a substrate such as a printed wiring board.

  A conventional connector is composed of a contact, an insulator that holds the contact, and an actuator that is rotatably attached to the insulator and that can elastically deform the contact to contact a flexible printed circuit (FPC). The

  The contact is connected to the FPC on one side, the actuated part by the actuator on the other side, the first beam having the contact part with the FPC on one side, and the printed circuit board on the other side by soldering. Each of which has a terminal portion to be connected to each other, and a connection spring portion for connecting the first beam and the second beam.

  When the actuator rotates, the cam portion elastically deforms the contact spring portion and the connecting spring portion. Then, the FPC is pinched between the protrusion of the contact portion and the protrusion of the contact portion. Therefore, the pattern formed on the surface of the FPC is connected to the printed circuit board through the terminal portion of each contact (see Patent Document 1).

JP 2002-270290 A

In the conventional connector, when the terminal part is located outside the insulator, the terminal part is not protected, and foreign matter such as dust adheres to the terminal part, which occurs after the connector is mounted on the board. short-circuits at the contact portion by foreign matter such as dust is attached, can cause migration, further terminal portions are problems such as corrosion occurs.

Therefore, an object of the present invention is to provide short circuit definitive in contact portion By the foreign matter such as dust in the terminal unit attaching, migration, the connector of the occurrence of corrosion of the terminal portion can be prevented.

The present invention includes a conductive contact, an insulator that holds the contact, and an actuator that is rotatably attached to the insulator and that rotates to contact the connection object by elastically deforming the contact. In the connector, the contact includes a terminal portion extending from the insulator to the outside of the insulator, and the actuator covers the terminal portion in a state where the contact is elastically deformed to contact the connection object. A cover part , the cover part including a pair of cover side plate parts, a cover top plate part connecting the upper sides of the pair of cover side plate parts to each other, the pair of cover side plate parts, and the cover top plate part And a pair of cover side plates, the cover top plate, and the rear plate. Is the most important feature that a connector which is a part covering the three surfaces of the terminal portion except for the one side of the terminal portion to be connected to the printed wiring board.

According to the connector of the present invention, since the cover portion is provided integrally with the actuator, shorting, migration, and corrosion of the contact terminal portion due to adhesion of foreign matters such as dust generated after the connector is mounted on the substrate are generated. Therefore, the reliability of electrical connection in an actual use environment can be improved.

  Moreover, since the actuator for fixing after inserting a connection target object also has a cover function with a cover part, a connector can be comprised, without increasing a number of parts.

  Furthermore, the connector has a structure in which the terminal portion is completely exposed at the time of reflow soldering of the terminal portion when the connector is opened while the cover portion is held, and the hot air from the solder reflow is sufficiently applied.

  Furthermore, the connector can be visually inspected with the soldering finish after the soldering is completed while holding the cover portion on the actuator.

The connector according to the present invention includes a conductive contact, an insulator that holds the contact, an actuator that is rotatably attached to the insulator, and that is rotated so that the contact is elastically deformed to contact an object to be connected. a connector including the contact has a terminal portion extending from said insulator out of the insulator, the actuator, the terminal portion of the contact being in contact with the connection object is elastically deformed A cover portion that covers the pair of cover side plate portions, a cover top plate portion that connects the upper sides of the pair of cover side plate portions, and the pair of cover side plate portions and the cover top. A rear plate portion connecting rear end sides of the plate portion to each other, and the pair of cover side plate portions, the cover top plate portion, and The rear plate portion is realized by a part covering the three surfaces of the terminal portion except for the one side of the terminal portion to be connected to the printed wiring board.

  The connector of the present invention will be described with reference to FIGS. 1 to 4 show a first embodiment of the connector. In the first embodiment, a connector that connects a flexible printed circuit (FPC) as an object to be connected will be described.

  The connector includes a large number of metal contacts 10, an insulator 20 that holds each contact 10, and a synthetic resin actuator 30 that presses each contact 10 against the FPC 50.

As specifically shown in FIG. 1, the contact 10 connects the contact portion 11, the contact portion 12 disposed so as to face the contact portion 11, and the contact portions 11 and 12 to each other. The connecting spring portion 13 includes a spring portion 14 that extends to the opposite side of the contact portions 11 and 12, and a holding portion 15 that extends so as to face the spring portion 14.

  As shown in FIG. 1, the contact 10 is configured by a contact portion 11, 12, a coupling spring portion 13, a spring portion 14, and a holding portion 15, so that the entirety is flat and substantially E-shaped.

  Two protrusions 11a and 11b are formed on the lower surface of the one end side of the contact portion 11 slightly apart. Further, the other end side of the contact portion 11 is bent and formed into an upward inclined portion 11c. Two protrusions 12a and 12b are formed on the upper surface of one end side of the contact portion 12 slightly apart.

Further, the other end of the contact portion 12, Ru bent has been Tei is formed downward slope portion 12c. Further, a protrusion 16 is formed at the tip of one end of the contact portion 12 . A cam receiving recess 15 a is formed on the upper surface of the center of the holding portion 15.

A terminal portion 17 for connecting to the printed wiring board 60 by soldering is formed on the lower surface on one end side of the holding portion 15. The contact portion 11 and the spring portion 14 have a single beam shape. Further, both the contact portion 12 and the holding portion 15 have a single beam shape .

A large number of grooves 21 are formed in the lower front part of the front side of the insulator 20 . Each groove 21, the projecting portion 16 of each contact 10 is press-fitted. The insulator 20 is formed with a ceiling portion 22 that covers the contact portion 11 of each contact 10 and one side portion of the spring portion 14. An inclined guide portion 22a for guiding the FPC 50 when inserted into the connector is formed at the lower portion on the front side of the ceiling portion 22. The ceiling portion 22 can be used as a suction surface when the insulator 20 is automatically mounted.

The actuator 30 includes a cam portion 31, an operation portion 33 (a portion having a substantially L-shaped cross section in FIG. 1), and a cover portion 35 that covers the terminal portion 17. A clearance groove 32 is formed between the cam portion 31 and the operation portion 33 so that the vicinity 14a of the spring portion 14 of each contact 10 can be inserted and withdrawn. The actuator 30 is pivotally supported by the contact 10 by inserting the vicinity 14 a of the tip of the spring portion 14 of the contact 10 between the cam portion 31 and the operation portion 33.

The actuator 30 has a structure in which it is locked by being tilted to the side opposite to the side on which the connection object 50 is inserted. As shown in FIGS. 3 and 4, the cover portion 35 is rotatably supported via a shaft portion 20 c so as to partially face the outer surfaces of the pair of side wall portions 20 a of the insulator 20. The cover side plate portion 35a, the cover top plate portion 35b connecting the upper sides of the pair of cover side plate portions 35a to each other, and the rear end sides of the pair of cover side plate portions 35a and the cover top plate portion 35b are connected to each other. And a rear plate portion 35c.

  A pair of cover side plate portions 35a is formed with a shaft hole 35e that is rotatably engaged with the shaft portion 20c. A large cutout portion 35f is formed on the front side of the cover top plate portion 35b.

Therefore, the cover portion 35 of the actuator 30 has a hollow three-dimensional structure. As shown in FIGS. 5 and 6, when the cover portion 35 is tilted to the locked position , the pair of cover side plate portions 35a, the cover top plate portion 35b, and the rear The plate portion 35c covers three surfaces of the terminal portion 17 excluding one surface of the terminal portion 17 of the contact 10 connected to the printed wiring board 60 by soldering (surface on the side in contact with the printed wiring substrate 60) . Therefore, each of the cover part 35, the actuator 30, the insulator 20, and the printed wiring board 60 cooperates to surround the terminal part 17. The three surfaces of the terminal portion 17 are two surfaces parallel to the plate surface of the contact 10 and the other surface (terminal portion 17) facing one surface of the terminal portion 17 of the contact 10 connected to the printed wiring board 60 by soldering. The opposite side of the other side).

  In this connector, it is possible to prevent a decrease in electrical reliability due to adhesion of dust or the like to the terminal portion 17 by the cover portion 35 after being soldered to the printed wiring board 60. The actuator 30 also has a cover function, and since the terminal portion 17 is completely exposed at the time of solder reflow, the hot air from the solder reflow is sufficiently applied. Furthermore, it is possible to visually check the soldering finish after the completion of soldering while holding the cover portion 35.

  5 and 6, since the cam portion 31 is urged by the clockwise moment by the vicinity 14a of the spring portion 14 and the cam receiving recess 15a of the holding portion 15, the actuator 30 is shown in FIG. It is difficult to return to the state.

In the actuator 30 , the shaft hole 35 e may be a long hole as shown in FIGS. 2 and 6 or a round hole so as to be rotatably and slidably supported by the insulator 20.

The present invention can also be applied to an application as an electronic device using a connector for a flexible flat cable ( FFC ), TAB, or the like.

(Example 1) which is sectional drawing of the connector of this invention. It is a side view of the connector shown in FIG. It is a right view of the connector shown in FIG. It is a left view of the connector shown in FIG. It is sectional drawing which showed the state after operation in the connector shown in FIG. FIG. 6 is a side view of the connector shown in FIG. 5.

Explanation of symbols

10 Contact 11 Contact portion 11a, 11b Protrusion 11c Inclined portion 12 Contact portion 12a, 12b Protrusion 12c Inclined portion 13 Connecting spring portion 14 Spring portion 14a Near tip 15 Holding portion 15a Cam receiving recess 16 Protruding portion 17 Terminal portion 20 Insulator 21 Groove 22 Ceiling part 22a Guide part 30 Actuator 31 Cam part 32 Escape groove 33 Operation part
35 cover
35a cover side plate
35b cover top plate
35c rear plate 50 FPC
60 Printed circuit board

Claims (3)

In a connector including a conductive contact, an insulator holding the contact, and an actuator that is rotatably attached to the insulator and that rotates to contact the connection object by elastically deforming the contact.
The contact includes a terminal portion extending from the insulator to the outside of the insulator, and the actuator includes a cover portion that covers the terminal portion in a state in which the contact is elastically deformed and brought into contact with the connection object. has,
The cover portion includes a pair of cover side plate portions, a cover top plate portion connecting the upper sides of the pair of cover side plate portions to each other, and a rear end side of the pair of cover side plate portions and the cover top plate portion. The pair of cover side plate portions, the cover top plate portion, and the rear plate portion of the terminal portion except for one surface of the terminal portion to be connected to a printed wiring board. A connector characterized by being a part covering a surface . The connector according to claim 1, wherein the actuator is pivotally supported by the contact so as to be rotatable. The connector according to claim 1, wherein the actuator is slidably supported by the insulator.

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