CN201191666Y - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector for connecting a flexible printed circuit board, which comprises an insulating body, a plurality of conductive terminals which are held in the insulating body and a movable part, wherein the insulating body is provided with a butt joint cavity, the conductive terminal comprises a holding portion for holding on the insulating body, and a first contact arm and a second contact arm which are extended into the butt joint cavity, and the contact portion of the first contact portion is located on the inner side of the contact portion of the second contact arm, the butt joint cavity is provided with a boss portion which is corresponding to the contact portion of the first contact arm, and the distance between the contact portion and the boss portion is smaller than the thickness of the flexible printed circuit board, and the flexible printed circuit board can pre-hold between the first contact arm and the boss portion, thereby being beneficial for reliable electrical contact among the conductive terminals and the flexible printed circuit board.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, relate in particular to a kind of electric connector that is used for flexible print circuit or cable (Flat Printed Circuit or Cable) or flat flexible cable (Flat Flexible Cable), be convenient and describe, below above-mentioned flexible print circuit or cable or flat flexible cable are referred to as flexible printed circuit board.

[background technology]

See also United States Patent (USP) and announce the 6th, 837, No. 740, it discloses a kind of existing electric connector, and this electric connector comprises insulating body, several movable commentaries on classics pressing plates that are immobilizated in the conducting terminal in the insulating body and rotate between first, second position with respect to insulating body.Described insulating body is provided with the lengthwise base portion, from docking section that base portion one side is extended, this docking section is formed with can accommodate the resettlement section of changeing pressing plate and flexible printed circuit board, base portion is provided with several and runs through the terminal containing slot of insulating body along fore-and-aft direction, and this terminal containing slot extends on the docking section and with the resettlement section and communicates; Described conducting terminal includes first conducting terminal that inserts insulating body from the docking section and second conducting terminal that inserts insulating body from base portion, this first, second conducting terminal all is contained in the above-mentioned terminal containing slot, and has the holding parts that is immobilizated in base portion, extends and the pivotal arm that cooperates with movable commentaries on classics pressing plate and from pivotal arm bending extension and the upper and lower contact arm that is oppositely arranged from holding parts.

Distance between the upper and lower contact arm of described conducting terminal is greater than the thickness of flexible printed circuit board, when movable commentaries on classics pressing plate is in primary importance, flexible printed circuit board is can insert freely between the upper and lower contact arm of conducting terminal, along with movable commentaries on classics pressing plate rotates to the second place, the movable pressing plate that changes pushes contact arm and flexible printed circuit board electric connection down, and this time contact arm drives goes up contact arm, makes contact arm also reach electrical the contact with flexible printed circuit board.Yet, when movable commentaries on classics pressing plate is in primary importance, flexible printed circuit board is to insert between the upper and lower contact arm with zero insertion force, therefore, when flexible printed circuit board was assembled on the electric connector, this flexible printed circuit board did not have the fixing of external force and positions, thereby, flexible printed circuit board is easily dropped from electric connector, and may influence electrical contact the between electric connector and the flexible printed circuit board; In addition, because contact arm drives and goes up the contact arm motion down, and reach electrical the contact with flexible printed circuit board, if contact arm only makes contact arm produce less motion down, should go up contact arm and may not reach electrical the contact, thereby contact effect between contact arm and the flexible printed circuit board in the influence with flexible printed circuit board.

Therefore, necessary existing electric connector is improved, to overcome defective of the prior art.

[utility model content]

Technical problem to be solved in the utility model is to provide a kind of electric connector with reliable contact effect.

In order to address the above problem, the utility model electric connector adopts following technical scheme: a kind of electric connector, it can be used for connecting flexible printed circuit board, and this electric connector comprises: insulating body, the movable part that is contained in several conducting terminals in the insulating body and moves between first, second position with respect to insulating body; Described insulating body has the butt joint chamber, and described conducting terminal has the holding parts that is immobilizated on the insulating body, the weld part that extends into first, second contact arm in the butt joint chamber and extend from holding parts one end; This first, second contact arm all has contact site, and the contact site of first contact arm is in the inboard of the contact site of second contact arm; Be provided with the boss portion relative in the described butt joint chamber, and the contact site of this first contact arm and the distance between the boss portion are less than the thickness of flexible printed circuit board with the contact site of first contact arm.

Compared with prior art, the utility model electric connector has following beneficial effect: the distance between first contact arm by conducting terminal and the boss portion of insulating body is set to the thickness less than flexible printed circuit board, this flexible printed circuit board can be held between above-mentioned first contact arm and the boss portion in advance, electrically contact with the reliable of flexible printed circuit board thereby help conducting terminal.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of the utility model electric connector first execution mode.

Fig. 2 is inserted with the three-dimensional combination figure of flexible printed circuit board for the utility model electric connector shown in Figure 1, and has represented the situation when movable part is in primary importance.

Fig. 3 is the unit assembly drawing of the utility model electric connector shown in Figure 1, and has showed and removed movable part situation afterwards.

Fig. 4 is the cutaway view of the utility model electric connector along A-A line direction among Fig. 2, and has showed and removed flexible printed circuit board situation afterwards.

Fig. 5 is the cutaway view of the utility model electric connector along B-B line direction among Fig. 2, and has showed and removed flexible printed circuit board situation afterwards.

Fig. 6 is the cutaway view of the utility model electric connector along A-A line direction among Fig. 2.

Fig. 7 is the cutaway view of the utility model electric connector along B-B line direction among Fig. 2.

Fig. 8 is in the three-dimensional combination figure of the second place for the movable part of the utility model electric connector shown in Figure 2.

Fig. 9 is the cutaway view of the utility model electric connector along C-C line direction among Fig. 8.

Figure 10 is the cutaway view of the utility model electric connector along D-D line direction among Fig. 8.

Figure 11 is the three-dimensional exploded view of the utility model electric connector second execution mode.

Figure 12 is inserted with the three-dimensional combination figure of flexible printed circuit board for the utility model electric connector shown in Figure 11, and has represented the situation when movable part is in primary importance.

Figure 13 is the unit assembly drawing of the utility model electric connector shown in Figure 11, and has showed and removed movable part situation afterwards.

Figure 14 is the cutaway view of the utility model electric connector along E-E line direction among Figure 12.

Figure 15 is the cutaway view of the utility model electric connector along F-F line direction among Figure 12.

Figure 16 is in the three-dimensional combination figure of the second place for the movable part of the utility model electric connector shown in Figure 11.

Figure 17 is the cutaway view of the utility model electric connector along G-G line direction among Figure 16.

Figure 18 is the cutaway view of the utility model electric connector along H-H line direction among Figure 16.

[embodiment]

Fig. 1 is to first execution mode that Figure 10 shows that the utility model electric connector.

See also Fig. 1, shown in Figure 2, the utility model electric connector is a kind of electric connector 100 that is used to connect flexible printed circuit board 200, in the present embodiment, this electric connector 100 includes insulating body 1, is contained in several conducting terminals 2 in the insulating body and the movable part that moves with respect to insulating body between first, second position, in the present embodiment, described movable part is the movable pressing plate 3 that changes.

See also Fig. 1, Fig. 3 and shown in Figure 4, described insulating body has relative front end and rear end, the docking section 12 that this insulating body 1 has lengthwise base portion 11 and extends from the base portion front side, and docking section 12 front ends have an interface 120, and have upper wall 121, lower wall 122 and connect the two side 123 at these upper and lower wall two ends, and this wall is formed around with butt joint chamber 124, and wherein upper wall is shorter than lower wall; Described insulating body base portion 11 is provided with several terminal containing slots 110 that extends along the butt joint direction, and this terminal containing slot extends on docking section 12 and with butt joint chamber 124 and communicates, and described conducting terminal 2 is in base portion 11 rear ends are assembled into the terminal containing slot 110 of insulating body.

See also Fig. 1, Fig. 4 and shown in Figure 5, described conducting terminal 2 includes staggered first, second conducting terminal 21,22; The pivotal arm 212 that first conducting terminal has the holding parts 211 that is immobilizated in insulating body, extend from holding parts, extend into first contact arm 213, second contact arm 214 in butt joint chamber 124 and weld part 215, the second conducting terminals that extend from holding parts one end in the same way and also have holding parts 221, pivotal arm 222, first contact arm 223, second contact arm 224 and weld part 225.Wherein, first, first contact arm 213 of second conducting terminal, 223 all is to be positioned at pivotal arm 212,222 and second contact arm 214, between 224, and first contact arm 213 of conducting terminal, 223 and pivotal arm 212, the 222nd, be contained in the terminal containing slot 110 of upper wall, and second contact arm 214, the 224th, be contained in the terminal containing slot 110 of lower wall 22, this is first years old, second contact arm all has the contact site 216 that protrudes into described butt joint chamber, 226, and first contact arm 213,223 contact site is in second contact arm 214, the inboard of 224 contact site, i.e. second contact arm 214,224 contact site is comparatively near interface 120.

See also Fig. 4 to shown in Figure 7, be provided with boss portion 125 in the described butt joint chamber 124, in the present embodiment, this boss portion is to protrude out in the butt joint chamber from lower wall 122, thereby be oppositely arranged with the contact site of first contact arm 213,223, and the distance between the contact site of this first contact arm and the boss portion 125 is less than the thickness of flexible printed circuit board 200, but is formed with the gap of clamping flexible printed circuit board; When flexible printed circuit board inserts, because of being provided with boss portion 125 in the butt joint chamber, this flexible printed circuit board 200 pushing tows, first contact arm 213,223 and upwards elastic deformation, and this first elastic arm and boss portion 125 common these flexible printed circuit boards of clamping, make flexible printed circuit board in advance stable position in the butt joint chamber 124 in, reliably contact with flexible printed circuit board thereby help conducting terminal; In addition, when described flexible printed circuit board deformed the contact site 216 of first contact arm, this contact site may be wiped the dust on the flexible printed circuit board off, made contact site and flexible printed circuit board realize relative contact reliably; The contact site of described second contact arm 214,224 and above-mentioned boss portion 125 are to be positioned at same plane, can form the supporting plane of a supporting flexible printed circuit board (PCB).

Please consult Fig. 1 and shown in Figure 3 again, the lower wall 122 and the two side 123 of described insulating body is formed with the resettlement section of a recess, described movable commentaries on classics pressing plate 3 is contained in this resettlement section and is installed on pivotly on the insulating body 1 (please join Fig. 2 and shown in Figure 8), to reduce the whole height of electric connector.

See also Fig. 6, Fig. 7, Fig. 9 and shown in Figure 10, pivotal arm 222 the place aheads of second conducting terminal 22 are provided with pothook 227, described movable commentaries on classics pressing plate 3 has corresponding conducting terminal second contact arm 214, the press section 31 of 224 contact site and extruding flexible printed circuit board 200 and be positioned at the pivot part 32 (please join shown in Figure 2) at press section two ends, described press section 31 is provided with pivot 311 and can supplies the pivotal arm 212 of conducting terminal, 222 through holes that pass 312, and pivot 311 is accommodated and the pothook 227 that is matched with the second conducting terminal pivotal arm 222 that pivots in, can prevent from movably to change pressing plate 3 and detach insulating body 1.

See also shown in Figure 3ly, during assembling, conducting terminal 2 in insulating body 1 is inserted in the base portion rear end, will movably be changeed pressing plate 3 again and is installed on insulating body and the above-mentioned conducting terminal and (please joins shown in Figure 2).When movable commentaries on classics pressing plate 4 is in primary importance, when being open position, but form the gap (please join Fig. 4) of clamping flexible printed circuit board 200 between the contact site 216,226 of first contact arm 213,223 of described conducting terminal and the boss 125, so that the flexible printed circuit board that inserts is pre-aligned in this gap to shown in Figure 7; When movable commentaries on classics pressing plate is in the second place, when being make position, should movably change pressing plate 3 and with boss portion 125 and second contact arm, 213, the 223 common flexible printed circuit boards that clamp conducting terminal and flexible printed circuit board be electrically conducted, promptly the contact site of first, second contact arm electrically is contacted with the upper and lower surface (please join Fig. 8 to shown in Figure 10) of flexible printed circuit board respectively.

Please consult Fig. 2 and shown in Figure 8 again, described movable commentaries on classics pressing plate 3 two ends on longitudinally are provided with the projection 33 that outwards protrudes out, when movable commentaries on classics pressing plate 3 is in the close position, this projection 33 is contained in the recess 126 of corresponding setting on the insulating body, can keep movably changeing the closure state of pressing plate, prevent from movably to change when flexible printed circuit board 200 from taking up pressing plate 3 and started; Be provided with groove 313 between the press section 31 of described movable commentaries on classics pressing plate and the pivot part 32, described insulating body is to being provided with fin 127 by groove, and this fin can be contained in the described groove 313, prevents from movably to change the move left and right of pressing plate 3 and protects described conducting terminal 2.

Please consult Figure 1 and Figure 2 again, described electric connector 100 also includes and can be immobilizated in the metal retainer 4 of docking section 12 lengthwises to two ends, and described metal retainer is provided with holding parts 41, extends and press on support 42 on the insulating body and the leg 43 outside holding parts extends insulating body from holding parts; Described movable commentaries on classics pressing plate 3 is provided with the groove 314 of corresponding support 42; and this support 42 is to press on the docking section 12; can effectively improve the insulating body that causes when flexible printed circuit board is pullled by related situation about starting; reduce the impulsive force of external force to conducting terminal, thus protection conducting terminal 2.

Figure 11 is to second execution mode that Figure 18 shows that the utility model electric connector.

See also Figure 11, Figure 12 and shown in Figure 13, electric connector 100 ' include insulating body 1 ', be contained in several conducting terminals 2 in the insulating body ', with respect to insulating body 1 ' first, the movable commentaries on classics pressing plate 3 that moves between the second place ' and be immobilizated in metal retainer 4 on the insulating body ', described conducting terminal include the first terminal 21 ' and second conducting terminal 22 that is provided with separately with first conducting terminal ', wherein the main difference part of second execution mode and first execution mode be conducting terminal 2 ' in first conducting terminal 21 ', other elements (as insulating body 1 ', second conducting terminal 22 ', movable commentaries on classics pressing plate 3 ' and metal retainer 4 ') basic identical with first execution mode.No longer continue to give unnecessary details at this.

See also Figure 13 to shown in Figure 15, second conducting terminal 22 ' still identical with assembling mode in first execution mode, be to be assembled on the insulating body from insulating body base portion 11 ' rear end, and first conducting terminal 21 ' be from insulating body interface 120 ' insertion insulating body, corresponding therewith, insulating body 1 ' be provided with accommodate first conducting terminal 21 ' terminal containing slot 110 ', this terminal containing slot 110 ' with the terminal containing slot of accommodating second conducting terminal be provided with separately and do not run through fully base portion 11 ', with respect to first in first execution mode, second conducting terminal all inserts from the base portion rear end, first conducting terminal and second conducting terminal are pegged graft in opposite direction and can be reduced the connector terminals spacing, thereby help the miniaturization development of electric connector.

See also Figure 14 and shown in Figure 15, the holding parts 211 that first conducting terminal 21 ' have is immobilizated in insulating body ', the pivotal arm 212 that extends from holding parts ', from holding parts extend into butt joint chamber 124 ' first, second contact arm 213 ', 214 ' and weld part 215 in holding parts extends insulating body ', wherein, weld part 215 ' be is from interface 120 ' stretch out.

Please consult Figure 14 and shown in Figure 15 again, when movable commentaries on classics pressing plate 3 is shown in an open position, first contact arm 213 of first conducting terminal ' by contact site 216 ' with boss portion 125 ' will insert the jointly flexible printed circuit board 200 ' clamping of docking the chamber, make its more pre-aligned in the butt joint chamber 124 ' in, reliably contact with flexible printed circuit board thereby help conducting terminal; See also Figure 16 to shown in Figure 180, when movable commentaries on classics pressing plate 3 ' when being in the close position, movable change the contact site 216 of pressing plate by first, second contact arm of press section 31 ' extruding flexible printed circuit board 200 ' make ', 226 ' electrically be contacted with flexible printed circuit board 200 ' upper and lower surface, thereby conducting terminal and flexible printed circuit board can electrically conduct.

Above-mentioned execution mode is the better embodiment of the utility model electric connector.Certainly, the utility model also can adopt other execution mode, gives unnecessary details no longer one by one at this.

Claims (10)

1. electric connector, it can be used for connecting flexible printed circuit board, and this electric connector comprises: insulating body, the movable part that is contained in several conducting terminals in the insulating body and moves between first, second position with respect to insulating body; Described insulating body has the butt joint chamber, and described conducting terminal has the holding parts that is immobilizated on the insulating body, the weld part that extends into first, second contact arm in the butt joint chamber and extend from holding parts one end; This first, second contact arm all has contact site, and the contact site of first contact arm is in the inboard of the contact site of second contact arm;

It is characterized in that: be provided with the boss portion relative in the described butt joint chamber, and the contact site of this first contact arm and the distance between the boss portion are less than the thickness of flexible printed circuit board with the contact site of first contact arm.

2. electric connector as claimed in claim 1, it is characterized in that: the docking section that described insulating body has base portion and extends from base portion one side, this docking section has around the upper wall, the lower wall that form the butt joint chamber and connects the two side of upper and lower wall, and above-mentioned boss portion is to protrude out in the butt joint chamber from lower wall.

3. electric connector as claimed in claim 1 is characterized in that: the contact site of described second contact arm and boss portion are to be positioned at same plane.

4. as claim 1 or 2 or 3 described electric connectors, it is characterized in that: described conducting terminal includes first, second conducting terminal, this first, second conducting terminal all has the pivotal arm that extends from holding parts, the second conducting terminal pivotal arm front end is provided with pothook, and movable part is provided with the pivot that is contained in this pothook.

5. electric connector as claimed in claim 4 is characterized in that: described movable part is the movable pressing plate that changes, and this movably changes pressing plate and is provided with projection, and insulating body is provided with and the corresponding recess of this projection.

6. electric connector as claimed in claim 4 is characterized in that: first contact arm of described conducting terminal is between this pivotal arm and second contact arm.

7. electric connector as claimed in claim 4, it is characterized in that: described insulating body has relative front end and rear end, described docking section front end has interface, and first conducting terminal is in this interface inserts insulating body, and second conducting terminal is in insulating body is inserted in the base portion rear end.

8. electric connector as claimed in claim 4 is characterized in that: described insulating body has front end and rear end, and described first, second conducting terminal is all in insulating body is inserted in the base portion rear end.

9. electric connector as claimed in claim 1, it is characterized in that: described electric connector also includes and can be immobilizated in the metal retainer of insulating body lengthwise to two ends, and this metal retainer is provided with holding parts, extends support and the leg outside holding parts extends insulating body from holding parts.

10. electric connector as claimed in claim 9 is characterized in that: the support of described metal retainer is to press on the insulating body, and movable part is provided with groove that should support.

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