CN201266698Y

CN201266698Y - Electric connector

Info

Publication number: CN201266698Y
Application number: CNU2008200402692U
Authority: CN
Inventors: 李科; 汪发春
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2008-07-02
Filing date: 2008-07-02
Publication date: 2009-07-01
Anticipated expiration: 2018-07-02

Abstract

An electric connector used for electrically connecting a flexible printed circuit board comprises an insulated body, a plurality of terminals contained in the insulated body and a turning pressure plate arranged on the insulated body. The terminal comprises a pivot part, an upper contact arm and a lower contact arm extending from the pivot part and a pivotal arm extending along the opposite direction of the upper contact arm from the pivot part. The lower end of the pivot part is provided with a bump leaning against the insulated body. The bump elevates the lower contact arm, thus leading the lower contact arm to have a space for elastic deformation. The turning pressure plate can pivotally rotate between an open position and a closed position and comprises a cam part matched with the pivotal arm. When the turning pressure plate switches from the open position to the closed position, the upper contact arm and the lower contact arm closely clamp a butt object. While fixing the terminals, the bump can also share the working force borne by the pivot part so as to prevent the loss of elastic deformation of the pivot part and prolong the service life of the electric connector.

Description

Electric connector

[technical field]

The utility model is relevant a kind of electric connector, refers to a kind of electric connector that connects flexible printed circuit board especially.

[background technology]

Application discloses a kind of electric connector that is disclosed for No. 101043107 as Chinese invention patent, and this electric connector is the electric connection that is used for flexible printed circuit board and circuit board.The movable link that described electric connector has lengthwise type insulating body, be contained in the plurality of terminals in the insulating body and can rotate in open position and off-position.Described insulating body has upper wall and lower wall, and this upper wall and lower wall surround the slot that is used to accommodate flexible printed circuit board.The last contact arm that described terminal has fulcrum, extend in slot from fulcrum and contact arm and the support wrist that extends to the slot opposition side from fulcrum down.Described movable link has and supports the cam part that wrist cooperates.When movable link is positioned at open position, described flexible printed circuit board can insert in the slot, and when movable link is positioned at off-position, cam part acts on and supports wrist and contact arm is moved in slot, contact arm compresses flexible printed circuit board thereby make contact arm reach down, reaches electric connection.

Because of described contact arm down is to be resisted against on the lower wall of insulating body, when flexible printed circuit board inserted in the slot, described flexible printed circuit board was connected to down on the contact arm.When changeing pressing plate when open position rotates to make position, last contact arm is fulcrum with the fulcrum, and goes up contact arm generation strain, makes upper and lower contact arm come the clamping flexible printed circuit board to reach electric connection.After but the butt joint of the electric connector of this structure is finished, the described application point of going up contact arm puts on the fulcrum always, after docking time is long, the fulcrum distortion of following the string, when the commentaries on classics pressing plate rotates to open position, last contact arm possibly can't return to original position, thereby increases the difficulty of inserting flexible printed circuit board once more.

Therefore, at the problems referred to above, be necessary to propose a kind of new electric connector to address the above problem.

[utility model content]

Technical problem to be solved in the utility model is to provide a kind of terminal electric connector in useful life that prolongs.

For addressing the above problem, the utility model electric connector adopts following technical scheme: a kind of electric connector, be used for being connected with docking object, and it comprises: insulating body, plurality of terminals and commentaries on classics pressing plate; Described insulating body has upper wall and lower wall, and this upper wall and lower wall constitute slot; Described terminal is arranged and is immobilizated in the insulating body, and described terminal is provided with fulcrum, the upper arm parts of extending from the fulcrum upper end and the lower arm part of extending from the fulcrum lower end, upper arm parts one end is provided with the last contact arm that extends in the slot, the other end is provided with pivotal arm, and lower arm part is provided with the following contact arm relative with last contact arm; Described commentaries on classics pressing plate can pivot between open position and off-position; Described commentaries on classics pressing plate is provided with the pivot part that matches with pivotal arm, and when changeing pressing plate when open position forwards off-position to, described pivot part upwards pushes pivotal arm and makes contact arm and docking object electric connection; The lower end of described fulcrum is provided with projection, and this projection is resisted against on the described lower wall, makes down between contact arm and the lower wall and constitutes the gap.

Compared with prior art, the utility model electric connector has following beneficial effect: the projection that is provided with in the fulcrum lower end also can be shared the active force that fulcrum is born in the fixing terminal, thereby can prevent the stressed distortion of following the string when excessive of fulcrum, when changing flexible printed circuit board once more, last contact arm can return to original position, make things convenient for the insertion of flexible printed circuit board, prolong the useful life of electric connector.

[description of drawings]

Fig. 1 is the three-dimensional combination figure of the utility model electric connector.

Fig. 2 is the three-dimensional combination figure of another angle of the utility model electric connector.

Fig. 3 is the three-dimensional exploded view of the utility model electric connector.

Fig. 4 is the three-dimensional exploded view of another angle of the utility model electric connector.

Fig. 5 is the profile of Fig. 1 along the A-A direction, and represents the state that electric connector does not dock with flexible printed circuit board.

Fig. 6 is the profile of Fig. 1 along the A-A direction, and the state after representing electric connector and flexible printed circuit board docking.

[embodiment]

Please consult Figure 1 and Figure 2 earlier, the utility model electric connector 1 is to be connected on the circuit board (not shown), and with flexible printed circuit board 6 and circuit board electric connection, this electric connector 1 comprises insulating body 2, be contained in plurality of terminals 3 in the insulating body 2, be arranged at commentaries on classics pressing plate 4 and metal retainer 5 on the insulating body 2, and described terminal 3 is arranged and is immobilizated in the insulating body 2.Described commentaries on classics pressing plate 4 can be done pivoting action, thereby terminal 3 and flexible printed circuit board 6 are electrically connected.

See also Fig. 2 and shown in Figure 4, described insulating body 2 has upper wall 21 and lower wall 22, and this upper wall 21 and lower wall 22 formation slots 23.The plurality of terminals groove 24 corresponding with terminal 3 is located in the insulating body 2, and described terminal groove 24 is communicated with and runs through backward insulating body 2 with slot 23.Two ends from insulation body 2 are extended with location division 25 respectively, and each location division 25 is provided with locating piece 251, and when electric connector 1 was connected on the circuit board, described locating piece 251 passed circuit board so that electric connector 1 accurately is positioned on the circuit board.

See also Fig. 4 and shown in Figure 5, terminal 3 is " H " type, and it comprises a fulcrum 31, the upper arm parts 32 of extending from fulcrum 31 upper ends and the lower arm part 33 of extending from fulcrum 31 lower ends.Wherein, upper arm parts 32 comprises the last contact arm 321 that extends in the slot 23 and along the pivotal arm 322 that extends with last contact arm 321 rightabouts; Lower arm part 33 is provided with the following contact arm 331 that extends in the slot 23 equally, and contact arm 331 all had elasticity under upward contact arm 321 reached.The end of each contact arm all convexes with can detain the contact site 35 of holding described flexible printed circuit board 6.See also Fig. 5, described 21 of upper walls going up contact arm 321 and insulating body 2 have the contact arm of keeping supplying 321 elastically-deformable spaces.The lower ends downward of described fulcrum 31 protrudes out the projection 311 that is resisted against insulating body 2 lower walls 22, the setting of this projection 311 can be raised lower arm part 33, make 22 of lower arm part 33 and lower walls be formed with the gap, and feasible contact arm 331 elastically deformables down in the gap between following contact arm 331 and the lower wall 22.In the present embodiment, described projection 311 is the reversed acanthoid structure, and be positioned at fulcrum 31 under, and described lower wall 22 is provided with the recess (not label) that cooperates with projection 311, and then this reversed acanthoid projection 311 can be held in the recess so that terminal 3 keeps stable in the plug process of flexible printed circuit board 6.

Described pivotal arm 34 extends terminal groove 24 from fulcrum 31, and link to each other with last contact arm 321, pivotal arm 34 forms lever-like with last contact arm 321 by fulcrum 31, and the end of pivotal arm 34 is provided with hub switch side 341, and described hub switch side 341 is provided with and changes the pivot groove 342 that pressing plate 4 cooperates.

Be provided with the welding arm 36 that extends insulating body 2 from lower arm part 33 extensions, this welding arm 36 has the solder side 361 that can be welded on the circuit board and is provided with fixing hook 233, described fixing hook 233 is in order on the protuberance 221 that is clamped in insulating body 2 lower walls 22, and described fixing hook 233 is convex to be provided with the projection 234 that is connected to described protuberance 211 lower ends, thereby terminal 3 is immobilizated on the insulating body 2.

Please consult Fig. 4 and shown in Figure 5 again, described commentaries on classics pressing plate 4 is a long plate shape.For convenience with the cooperating of hub switch side 341, be provided with the some cams 41 that act on hub switch side 341 corresponding to pivot groove 342 places of hub switch side 341 in a side of changeing pressing plate 4.

See also shown in Figure 3ly, described metal retainer 5 is tabular, and comprises board body part 51 and from board body part 51 extended holding parts 52.Described insulating body 2 offers the accepting groove 26 of accommodating retaining piece 5 respectively in the both end sides of slot 23.

See also Fig. 2 and shown in Figure 4, during assembling, terminal 3 is contained in the terminal groove 24 of insulating body 2, and will change pressing plate 4 and be installed on the insulating body 2.Pivot part 41 correspondences of changeing pressing plate 4 are contained in the pivot groove 342.As shown in Figure 5, when flexible printed circuit board 6 does not insert electric connector 1, change pressing plate 4 and be shown in an open position, this moment, the pivotal arm 34 and the upper and lower contact arm 321,331 of terminal 3 were in original open configuration, so flexible printed circuit board 6 can insert in the described slot 23 easily; As shown in Figure 6, after flexible printed circuit board 6 is inserted in the slot 23, to change pressing plate 4 and place make position, then described pivot part 41 hub switch side 341 of jack-up pivotal arm 34 upwards in pivot, hub switch side 341 moves contact arm 321 by leverage in slot 23, and clamp flexible printed circuit board 6, thereby can reach electric connection with following contact arm 331.

When changeing pressing plate 4 when open position rotates to make position, described upper arm parts 32 makes contact arm 321 that strain take place by fulcrum 31, and push down flexible printed circuit board 6 to contact arm 331, because of the below of fulcrum 31 is provided with projection 311, make down contact arm 331 and lower wall 22 be provided with the gap, thereby upper and lower contact arm and flexible printed circuit board 6 common moving down, and reach electric connection jointly.Above-mentioned protruding 311 can share the active force that fulcrum 31 is born, thereby can prevent fulcrum 31 distortion of following the string, when changing flexible printed circuit board 6 once more, last contact arm 321 can return to original position, make things convenient for the insertion of flexible printed circuit board 6, prolong the useful life of electric connector 1.

Claims

1. an electric connector is used for being connected with docking object, and it comprises: insulating body, plurality of terminals and commentaries on classics pressing plate; Described insulating body has upper wall and lower wall, and this upper wall and lower wall constitute slot; Described terminal is arranged and is immobilizated in the insulating body, and described terminal is provided with fulcrum, the upper arm parts of extending from the fulcrum upper end and the lower arm part of extending from the fulcrum lower end, upper arm parts one end is provided with the last contact arm that extends in the slot, the other end is provided with pivotal arm, and lower arm part is provided with the following contact arm relative with last contact arm; Described commentaries on classics pressing plate can pivot between open position and off-position; Described commentaries on classics pressing plate is provided with the pivot part that matches with pivotal arm, and when changeing pressing plate when open position forwards off-position to, described pivot part upwards pushes pivotal arm and makes contact arm and docking object electric connection; It is characterized in that: the lower end of described fulcrum is provided with projection, and this projection is resisted against on the described lower wall, makes down between contact arm and the lower wall and constitutes the gap.

2. electric connector as claimed in claim 1 is characterized in that: be formed with the gap between described lower arm part and the lower wall.

3. electric connector as claimed in claim 1 is characterized in that: described projection is a reversed acanthoid, and the lower wall of insulating body is provided with the recess that cooperates with projection.

4. electric connector as claimed in claim 1 is characterized in that: described projection be positioned at fulcrum under.

5. electric connector as claimed in claim 1 or 2, it is characterized in that: described electric connector is to be connected on the circuit board, described terminal also is provided with the welding arm that extends insulating body from lower arm part, the end of this welding arm is provided with the solder side that is welded on the circuit board, the downward contact arm rightabout of the lower wall of described insulating body is extended with protuberance, described weld part and protuberance joint are provided with the fixing hook, and this fixing hook is connected to described protuberance.

6. electric connector as claimed in claim 5 is characterized in that: the convex projection that is provided with the lower end that is connected to described protuberance of described fixing hook.

7. electric connector as claimed in claim 1 or 2 is characterized in that: the end of described pivotal arm is provided with the hub switch side, and described hub switch side is provided with the pivot groove that cooperates with pivot part.

8. electric connector as claimed in claim 5 is characterized in that: the two ends of described insulating body are extended with the location division respectively, and each location division is provided with the locating piece that passes circuit board.Described electric connector also has the pair of metal retaining piece, and the slot two ends of insulating body are provided with the accepting groove of accommodating described metal retainer, and this metal retainer is welded on the circuit board.