CN201887191U - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector. One end of a flexible circuit board can be inserted into the connector, the terminals with two different lengths of a first terminal set and a second terminal set can be pressed through the actions of a rotary pressing board on the connector, a small space is formed between the force application arm of the first terminal set and the base part, so as to balance the fore application and stress conditions of the first and second terminals sets and prolong the service life of the electric connector.

Description

Electric connector

Technical field

The utility model is about a kind of electric connector, and what refer to a kind of improvement especially makes the electric connector that telecommunications connects for flex circuit application.

Background technology

The use of general flexible print wiring board; usually can be fixed on the circuit board and the electric connector that is electrically connected with its generation (being called for short FPC) by one; on this circuit board, to settle the flexible electric circuit board or the flexible flat cable of a reduced size; described electric connector has a plurality of conductor contacts; be used to contact the connecting terminal on this flexible print wiring board, or the conductor in this flexible flat cable assembly.

Electric connector commonly used, as the novel patent M352793 of TaiWan, China " connector terminal structure " is to be equipped with a plurality of H type contact terminals in insulating body, described H type contact terminal can be divided into two kinds of specifications according to its length, these two kinds of contact terminals that length is different, all be provided with relative last contact arm, following contact arm, opposite side then is provided with relative last force arm, following force arm, and to change the set ellipticity pivot part in pressing plate bottom at last force arm, move between following force arm, and force the last contact arm of the other end indirectly, the set protuberance in following contact arm end is held on the flexible print wiring board relatively, though it can improve the problem that above-mentioned flexible print wiring board comes off easily, and has a preferable electrical contact effect, but the length difference of the contact arm of these two kinds of contact terminals, and force arm on the another terminal, the spacing of following force arm is identical, make ellipticity pivot part set bottom it at last force arm if change pressing plate to rotate, move between following force arm, this will cause the long contact terminal of contact arm to be clamped to flexible electric circuit board earlier, the short contact terminal of contact arm then can be clamped to flexible electric circuit board in second time, because the short contact terminal of contact arm also clips to flexible electric circuit board really, then the long contact terminal of contact arm will be excessive to the clamping strength of flexible electric circuit board, cause the long contact terminal of length to use its elastic reaction of back just can lose efficacy for a long time, produce permanent bending deformation, and then can't recover original kenel.

The utility model content

The technical problem that the utility model solves provides a kind of electric connector, avoids terminal excessive to flexible circuit board clamping strength, and makes terminal produce the bending distortion.

Technical solution of the present utility model is:

A kind of electric connector, wherein, this electric connector comprises at least:

One insulating base frame has a socket, and a circuit board section is inserted the grafting space of this insulating base frame;

The first terminal group and second terminal group, be staggered the setting before and after in this insulating base frame, the described the first terminal group and second terminal group are made up of a plurality of terminals, and be extended with profiled section in the same way from the base portion of each terminal, and be provided with contact arm and force arm from the other end of described profiled section, described contact arm and force arm are oppositely arranged, and constituting with this profiled section is the lever construction of fulcrum, and the contact arm of this first terminal group is shorter than the contact arm of this second terminal group;

One changes pressing plate, which is provided with the perforation that the force arm of described each terminal of a plurality of confessions wears, and a side of this commentaries on classics pressing plate is provided with a plurality of cams, described cam can be pivoted between described force arm and base portion, these commentaries on classics pressing plate two ends are extended an axial region respectively and are articulated in this insulating base frame, it is characterized in that:

Be provided with big spacing between the force arm of this second terminal group and base portion, be provided with less spacing between the force arm of this first terminal group and base portion.

Above-mentioned electric connector wherein, is embedded with the holder of location axial region with respect to the axial region place of this commentaries on classics pressing plate on this insulating base frame, this holder is the ㄈ shape.

Learn by above explanation, the utility model compared with prior art, really can reach following effect: electric connector structure of the present utility model is simple, and the commentaries on classics pressing plate function in the electric connector is in the terminal of forward and backward setting, with these two kinds of terminals that length is different of pressure holding, between the force arm of front terminal and base portion, less spacing is set, with the force-bearing situation of executing of the forward and backward terminal of balance, increase the service life, not fragile.

Description of drawings

Fig. 1 is the structure chart of the utility model one preferred embodiment;

Fig. 2 is the A-A cutaway view of Fig. 1;

Fig. 3 is the B-B cutaway view of Fig. 1;

Fig. 4 is the C-C cutaway view of Fig. 1;

Fig. 5 A and Fig. 5 B are respectively the structure chart of the first terminal group of the present utility model and second terminal group.

The main element label declaration:

1: insulating base frame 11: grafting space 111: socket

12: terminal groove 13: groove 2: the first terminal group

20: base portion 201: contact 21: contact arm

22: force arm 23: profiled section 24: fix section

Terminal group 30 in 3: the second: base portion 301: contact

31: contact arm 32: force arm 33: profiled section

34: fix section 4: change pressing plate 41: axial region

42: cam 43: perforation 5: holder

Embodiment

Understand for technical characterictic of the present utility model, purpose and effect being had more clearly, now contrast description of drawings embodiment of the present utility model.

Fig. 1 is the structure chart of the utility model one preferred embodiment, and together with reference to shown in other each figure, from figure, can be clear that, the utility model mainly comprises: insulating base frame 1, be the staggered the first terminal group 2 and second terminal group 3 that is provided with before and after changeing pressing plate 4 and placing in the insulating base frame 1, wherein:

Insulating base frame 1 inside has and is the grafting space 11 that connects shape, and grafting space 11 is provided with socket 111 on one side, the grafting space 11 that supplies a circuit board section to insert this insulating base frame 1, socket 111 extends the plurality of terminals groove 12 that can be connected with grafting space 11 backward, and the groove 13 that can articulate for the axial region 41 of commentaries on classics pressing plate 4 is set the outside respectively in insulating base frame 1 relatively with respect to terminal groove 12 2;

The first terminal group 2 and second terminal group 3 are constituted (as Fig. 2 by having a plurality of terminal that is worker's shape, shown in 3), comprise base portion 20,30 and respectively from base portion 20,30 sides extend the fixing section 24 in order to fix with insulating base frame 1,34, and from base portion 20, the profiled section 23 that place, 30 centre positions protrudes out, 33, and from profiled section 23,33 both sides are provided with force arm 22 respectively, 32 and contact arm 21,31, described force arm 22,32 respectively with contact arm 21,31 are oppositely arranged, and force arm 22,32 and contact arm 21,31 respectively with base portion 20,30 are formed with preset space length, in the cam 42 of confession flex circuit application and commentaries on classics pressing plate 4 is placed in respectively, base portion 20, on 30 with respect to contact arm 21,31 end is convexly equipped with contact 201,301, wherein contact arm 21 is shorter in length than contact arm 31;

Change pressing plate 4, the one side is provided with a plurality of cams 42, and each cam 42 top is respectively equipped with the perforation 43 that is used to wear each terminal force arm 22,32, and is respectively equipped with axial region 41 in the outside relatively in cam 42 2;

Holder 5 can embed in the insulating base frame 1, is positioned predeterminated position (as shown in Figure 4) so that change the axial region 41 of pressing plate 4 both sides, and this holder 5 is the ㄈ shape.

When flexible electric circuit board is inserted this insulating base frame 1 when being electrically connected, forcing in commentaries on classics pressing plate 4 rotates towards predetermined direction with order commentaries on classics pressing plate 4, the cam 42 that changes 20,30 of the force arm 22,32 that lays respectively at first and second terminal group 2,3 on the pressing plate and base portions this moment just can rotate thereupon, utilize profiled section 23,33 to be fulcrum, be lever and carry out angular movement, push by 21,31 pairs of these flexible electric circuit boards of described contact arm, and at last it is held on 201,301 of contact arm 21,31 and contacts.

The utility model is with the different of existing structure maximum: 20 of the force arm 22 of the first terminal group 2 and base portions are established less spacing X, 30 of the force arm 32 of second terminal group 3 and base portions are established big spacing Y (shown in Fig. 5 A and Fig. 5 B), and when being positioned at wherein cam 42 and rotating, the force arm 22 of elder generation's ejection the first terminal group 2 moves up, and then short contact arm 21 is moved in advance, also but the force arm 32 of ejection second terminal group 3 moves up when cam 42 turns an angle, and then make long contact arm 31 begin to move, by this with balance first, second terminal group 2,3 contact arm 21,31 force situation is to prolong first, second terminal group 2,3 useful life.

The above only is the schematic embodiment of the utility model, is not in order to limit scope of the present utility model.Any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present utility model and principle and modification all should belong to the scope that the utility model is protected.

Claims (1)

1. an electric connector is characterized in that, this electric connector comprises at least:

Insulating base frame has socket, and circuit board section is inserted the grafting space of this insulating base frame;

The first terminal group and second terminal group, be staggered the setting before and after in this insulating base frame, the described the first terminal group and second terminal group are made up of a plurality of terminals, and be extended with profiled section in the same way from the base portion of each terminal, and be provided with contact arm and force arm from the other end of described profiled section, described contact arm and force arm are oppositely arranged, and constituting with this profiled section is the lever construction of fulcrum, and the contact arm of this first terminal group is shorter than the contact arm of this second terminal group;

Change pressing plate, which is provided with the perforation that the force arm of described each terminal of a plurality of confessions wears, and a side of this commentaries on classics pressing plate is provided with a plurality of cams, described cam can be pivoted between described force arm and base portion, these commentaries on classics pressing plate two ends are extended an axial region respectively and are articulated in this insulating base frame, it is characterized in that:

Be provided with big spacing between the force arm of this second terminal group and base portion, be provided with less spacing between the force arm of this first terminal group and base portion.

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