CN201312005Y - Electrical connector - Google Patents

Abstract

The utility model provides an electrical connector, which comprises an insulation body provided with a plurality of accommodation grooves, as well as a first conductive terminal and a second conductive terminal accommodated in each accommodation groove, wherein the first conductive terminal is provided with two first elastic arms with an clearance therebetween, a contact part is arranged outside each first elastic arm, the second conductive terminal is provided with a base part and two second elastic arms with an clearance therebetween that are formed by extending the base part, and a contact surface far from the base part is arranged inside each second elastic arm. The contact parts of the first elastic arms and the contact surfaces far from the base parts of the second elastic arms are correspondingly connected in a sliding manner, so that the first elastic arms and the second elastic arms have greater deflection and can bear comparatively even load. Therefore, the electrical connector avoids the phenomena that the conductive terminal and a butt-joint electronic assembly are not electrically connected well because too much load borne by the two elastic arms of one conductive terminal exceeds the yield strength thereof, thereby resulting in plastic deformation which further causes no restoration.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, relates in particular to a kind of electric connector that is used to electrically connect chip to a circuit board.

[background technology]

A kind of electric connector 100 of prior art is (as Fig. 1, shown in Figure 2), electrically connect on a butt joint electronic building brick 1000 to one circuit boards (not shown), comprise an insulating body 10, described insulating body 10 is provided with a plurality of terminal accommodation holes 11, wherein each described terminal accommodation hole 11 is provided with one first conducting terminal 20 and one second conducting terminal 30, described first conducting terminal 20 is electrically conducted described second conducting terminal 30, described first conducting terminal 20 is provided with two pressure sections 21 and two relative backing arms 22, described second conducting terminal 30 has a base portion 31, an and elastic arm 32 of two almost parallels that extend by described base portion 31, each described elastic arm 32 has one first contact site 321 and one second contact site 322, the end that described first contact site 321 is positioned at described elastic arm 32 can flexibly support described pressure section 21, described second contact site 322 is positioned at the bottom of described elastic arm 32, and be between described first contact site 321 and the described base portion 31, it is near described base portion 31, and described backing arm 22 supports described second contact site 322, when external force acts on described first conducting terminal 20, described first conducting terminal 20 moves downward, the described pressure section 21 of described first conducting terminal 20 supports described first contact site 321 of described second conducting terminal 30, make described elastic arm 32 expand outwardly by compression, simultaneously, the described backing arm 22 of described first conducting terminal 20 can be subjected to the pressure generation strain of described second contact site 322, making described backing arm 22 closely contact to form mutually with described second contact site 322 of the described elastic arm 32 of described second conducting terminal 30 electrically connects, after external force was eliminated, described elastic arm 32 utilized elastic force to make described first conducting terminal 20 be returned to initial condition.

Its weak point is: because described second contact site 322 is positioned at the bottom and the approaching described base portion 31 of described elastic arm 32, so with respect to described first contact site 321 that is positioned at described second conducting terminal, 30 ends, the elastic deformation amount of described second contact site 322 is very small, when described first conducting terminal 20 has bigger compression travel, when producing bigger load, described backing arm 22 supports little described second contact site 322 of distortion and moves downward, so the distortion of described backing arm 22 also is very little, thereby 22 loads that can bear of described backing arm are less, and most of load is born by the described elastic arm 32 of described second conducting terminal 30, thereby, described elastic arm 32 produces expanding outwardly by a relatively large margin, in case described two elastic arms 32 are expanded to certain degree, the load that described elastic arm 32 is born will surpass the yield strength of itself, thereby cause described elastic arm 32 plastic deformations and can't reset, and then cause described first, second conducting terminal 20,30 dock the generation that is electrically conducted phenomenon such as bad between electronic building brick 1000 and circuit board (not shown) with described.

Therefore, be necessary to design a kind of new electric connector, to overcome described defective.

[utility model content]

The purpose of this utility model is to provide a kind of conducting terminal of avoiding to cause that because of plastic deformation can't reset conducting terminal is electrically conducted bad electric connector with docking between electronic building brick.

The utility model electric connector electrically connects one first butt joint electronic building brick and docks electronic building brick with one second, comprising: an insulating body, and described insulating body is provided with at least one accepting groove; One first conducting terminal, described first conducting terminal are contained in each described accepting groove, and described first conducting terminal is provided with two first elastic arms, and described two first elastic arms have the gap, and the outside of described each first elastic arm has a contact site; At least one second conducting terminal, described second conducting terminal is contained in each described accepting groove, described second conducting terminal has a base portion, and two second elastic arms that extend to form by described base portion, described two second elastic arms have the gap, and the inboard of described each second elastic arm is provided with a contact-making surface, and described contact-making surface is away from described base portion, and the gap of described contact-making surface is towards the direction convergent of described base portion; Wherein, the contact site of described first elastic arm connects with the mutual corresponding slip of the contact-making surface of described second elastic arm, the contact site of described first elastic arm is between the contact-making surface of described second elastic arm, and the gap between the contact site of described first elastic arm is greater than the minimum clearance between the contact-making surface of described second elastic arm.

Compared with prior art, the utility model electric connector, when described first, when wherein a described conducting terminal is stressed in second conducting terminal, described contact site connects with the corresponding slip of contact-making surface of described second elastic arm away from described base portion, described first elastic arm is drawn close gradually, described second elastic arm expand gradually and away from, make described first elastic arm and described second elastic arm all have bigger distortion, even so described first, the wherein compression travel of described conducting terminal increase in second conducting terminal, described first, second liang of conducting terminal also all can be born the load that the suitable compression travel by bigger causes, thereby has avoided described first, described two elastic arms of one of them described conducting terminal are born more load and are surpassed the yield strength of itself and cause its plastic deformation and the described conducting terminal that causes of can't resetting docks the generation that is electrically conducted phenomenon such as bad between electronic building brick with described in second conducting terminal.

[description of drawings]

Fig. 1 is the cutaway view of electric connector in the prior art;

Fig. 2 is equipped with the schematic diagram of electronic building brick for electric connector in the prior art;

Fig. 3 is the cutaway view of the electric connector among the utility model electric connector first embodiment;

Fig. 4 is the stereogram of first conducting terminal among the utility model electric connector first embodiment when cooperating with second conducting terminal;

Fig. 5 is equipped with the schematic diagram of butt joint electronic building brick for the electric connector among this practical electric connector first embodiment;

Fig. 6 is the three-dimensional cutaway view of the insulating body among the utility model electric connector first embodiment;

Fig. 7 is the cutaway view of the electric connector among the utility model electric connector second embodiment;

Fig. 8 is equipped with the schematic diagram of butt joint electronic building brick for the electric connector among the utility model electric connector second embodiment.

[embodiment]

Below in conjunction with the drawings and specific embodiments the utility model electric connector is described further.

See also Fig. 3 to Fig. 6, first embodiment for the utility model electric connector 1, described electric connector 1 is used to electrically connect one first butt joint electronic building brick 200 and docks electronic building brick 300 with one second, the described first butt joint electronic building brick 200 has a plurality of first contact zones 201, the described second butt joint electronic building brick 300 has a plurality of second contact zones 301, described electric connector 1 comprises an insulating body 2, and be arranged at a plurality of first conducting terminals 4 in the described insulating body 2 and a plurality of second conducting terminals 5 and a plurality of scolder 6, one described first conducting terminals 4 and described second conducting terminal 5 and form a conducting terminal group.

See also Fig. 3, Fig. 5 and Fig. 6, described insulating body 2 is provided with a plurality of accepting grooves 21, described accepting groove 21 runs through described upper and lower surface 22,23, it between the adjacent described accepting groove 21 an insulation gap arm 213, by the described lower surface 23 of described insulating body 2 a plurality of accommodation holes 24 that set to the concave, each described accommodation hole 24 communicates with each described accepting groove 21, and be used for ccontaining each described scolder 6 in each described accommodation hole 24, in addition, described insulating body 2 is concaved with two holding hole (not shown) in each described accepting groove 21.

See also Fig. 6, described accepting groove 21 is for rectangle and be the staggered form of perpendicular row and line and arrange (certainly, in other embodiments, described accepting groove 21 also can only be perpendicular row arrangement or only be line to be arranged), the long relatively limit 211 of each rectangle of described accepting groove 21 is respectively towards a relative short edge 212 of adjacent described accepting groove 21, and the described relatively minor face 212 of each rectangle of described accepting groove 21 is respectively towards a described relatively long limit 211 of adjacent described accepting groove 21, this arrangement mode makes the width of the described insulation gap arm 213 between the adjacent described accepting groove 21 increase, and then help described insulation gap arm 213 and have uniform stress distribution to guarantee its mechanical strength, it is too near and make adjacent described conducting terminal group be in contact with one another the back to form short circuit phenomenon to avoid simultaneously being arranged in interval between the described conducting terminal group (comprising described first conducting terminal 4 and described second conducting terminal 5) of adjacent described accepting groove 21 of described insulating body 2, in addition, per unit area has the arrangement of more described conducting terminal group, help the densely arranged of described conducting terminal group, and utilized the space of described insulating body 2 fully.

See also Fig. 3 to Fig. 5, each described first conducting terminal 4 is can stamping forming resilient sheet-like body, it is contained in each described accepting groove 21, described first conducting terminal 4 is provided with one first base portion 41, end by described first base portion 41 extends upward one first docking section 42, is bent downwards by the both sides of described first base portion, 41 other ends and extends two first relative elastic arms 43.Wherein, described first docking section 42 is given prominence to described upper surfaces 22 and is electrically conducted with described first contact zone 201.

Described two first elastic arms 43 have certain interval, the latter end 432 that each described first elastic arm 43 has a linkage section 431, extended by described linkage section 431, and a bending segment 433 connects described linkage section 431 and described latter ends 432.Be understood that, if want to increase the amount of elastic deformation of described two first elastic arms 43, can be by increasing the gap of described two first elastic arms 43, but, under the certain situation in the gap of described latter end 432, by described bending segment 433 is set, make distance between described two linkage sections 431 greater than the distance between the described latter end 432, guaranteeing under the certain situation in two described latter ends, 432 gaps like this, by increasing the distance between described two linkage sections 431, and then the elastic deformation that increases described first elastic arm 43.The outside of described latter end 432 is provided with a contact site 4321 and a guiding face 4322 (certainly, also can be provided with described contact site 4321 and described guiding face 4322 in the inboard of described latter end 432), and described guiding face 4322 extends to described contact site 4321.

See also Fig. 3 to Fig. 5, each described second conducting terminal 5 is can stamping forming resilient sheet-like body, it is contained in the described accepting groove 21, and be electrically conducted with each described first conducting terminal 4, described second conducting terminal 5 is provided with one second base portion 51, end by described second base portion 51 extends one second docking section 52, extends two second relative elastic arms 53 by two lateral bucklings of the relative other end of described second base portion 51.

The not outstanding described lower surface 23 in described second docking section 52 of described second conducting terminal 5, and described second docking section 52 is electrically conducted with described second contact zone 301 (certainly by the described scolder 6 that is arranged in the described accommodation hole 24, in other embodiments, the described second docking section 52 described lower surface 23 that also can give prominence to described insulating body 2 contacts with described second contact zone, 301 compressions).

Described two second elastic arms 53 have certain interval, each described second elastic arm 53 is provided with a contact-making surface 531, described contact-making surface 531 is away from described second base portion 51, and the gap between the two described contact-making surfaces 531 is towards the direction convergent of described second base portion 51, in the present embodiment, be provided with described contact-making surface 531 in each described inboard of terminal 54 and connect (certainly, in other embodiments, also can be provided with described contact-making surface 531) in described terminal 54 the outside with described guiding face 4322 slips.

In addition, described second base portion 51 convexes with two holding sections 55, described two holding sections 55 lay respectively in described two holding hole (not shown), form the concavo-convex fixed structure that holds, thus being fixed in the described accepting groove 21 of guaranteeing that described first conducting terminal 4 and described second conducting terminal 5 can be stable.

See also Fig. 3 to Fig. 6, during assembling, earlier described first conducting terminal 4 is installed in the described accepting groove 21 from described lower surface 23, make described first docking section 42 protrude in the described upper surface 22 of described insulating body 2.

Then, described second conducting terminal 5 is installed in the described accepting groove 21 from described lower surface 23, described first conducting terminal 4 is formed with described second conducting terminal 5 to be contacted up and down, at this moment, described guiding face 4322 contacts with the described contact-making surface 531 of described second elastic arm 53, and described contact site 4321 is between the described contact-making surface 531 (certain, in other embodiments, described contact-making surface 531 also can be between the described contact site 4321), simultaneously, guarantee that gap between described contact site 4321 outsides is greater than the minimum clearance between the described contact-making surface 531.

At last, described scolder 6 is placed in the described accommodation hole 24, it is overlapped on described second docking section 52, finish the assembling of described electric connector 1 with this.

The described first butt joint electronic building brick 200 is docked electronic building brick 300 to be mounted to and to assemble on the described electric connector 1 finish with described second, and by heating described scolder 6 described second conducting terminal 5 in the described electric connector 1 is soldered on a plurality of described second contact zone 301 of the described second butt joint electronic building brick 300, so that docking electronic building brick 300 formation with described second, described electric connector 1 is electrically conducted.

The application of force presses down the described first butt joint electronic building brick 200, described first conducting terminal, 4 stressed moving down, in the process that moves down, at first described guiding face 4322 slides mutually with described contact-making surface 531 and connects, because the setting of described guiding face 4322, so do not need too big power to press down described first conducting terminal 4, the stroke that moves downward along with described first conducting terminal 4 increases, described then contact site 4321 slides mutually with described contact-making surface 531 and connects, in the process that moves down, described first elastic arm 43 is drawn close gradually, described second elastic arm 53 expand gradually and away from, because beginning to slide away from described contact-making surface 531 places with described second elastic arm 53 at described contact site 4321, described first conducting terminal 4 and described second conducting terminal 5 connect, make the bigger deflection that described first elastic arm 43 and described second elastic arm 53 all have, even so described first, second conducting terminal 4, the compression travel of a wherein said conducting terminal increases in 5, described first, second conducting terminal 4,5 also all can bear the load that is caused by bigger compression travel, thereby have only avoided by described first conducting terminal 4 or only born too much load by described second conducting terminal 5 causing described first conducting terminal 4 or 5 plastic deformations of described second conducting terminal and can't resetting and described first conducting terminal 4 that causes and described second conducting terminal 5 dock the generation that electronic building brick 200 and described second 300 of the electronic building bricks of butt joint are electrically conducted phenomenon such as bad with described first.

See also Fig. 7 and Fig. 8, be second embodiment of the utility model electric connector 1, the difference of itself and described first embodiment is:

Described insulating body 2 combines by two parts, and the described accepting groove 21 of described insulating body 2 is provided with two butting sections 56.

Described second base portion 51 convexes with two shoulders 57, and described second terminal 5 can free movable being contained in the described accepting groove 21.

When described second conducting terminal 5 does not contact described second butt joint during electronic building brick 300, described two shoulders 57 correspondence respectively are shelved on described two butting sections 56, and when electronic building brick 300 is docked in 5 contacts described second of described second conducting terminal, described two shoulders 57 of described second conducting terminal 5 break away from described two butting sections 56, and in described accepting groove 21 risings in the described second butt joint electronic building brick 300 pressure effect lower edges, till described second conducting terminal 5 stops to rise, thereby guarantee that the described contact-making surface 531 of described second conducting terminal 5 closely contacts with described guiding face 4322.

In sum, the utility model electric connector 1 has the following advantages:

1. the described accepting groove of the utility model electric connector is rectangle and adopts the staggered form of perpendicular row and line to arrange, this arrangement mode makes the width of the described insulation gap arm between the adjacent described accepting groove increase, the described conducting terminal group of avoiding being arranged in the adjacent described accepting groove of described insulating body is too near at interval and be in contact with one another the short circuit phenomenon of formation between the adjacent described conducting terminal group that causes, the arrangement that the while per unit area has more described conducting terminal group helps the densely arranged of described conducting terminal group.

2. described first conducting terminal of the utility model electric connector is provided with two first elastic arms, described second conducting terminal is provided with two second elastic arms, when described first, when wherein a described conducting terminal is stressed in second conducting terminal, the contact site of described first elastic arm connects away from the mutual corresponding slip of the contact-making surface of described second base portion with described second elastic arm, and two elastic arms of described conducting terminal (first elastic arm) are close mutually, another described two elastic arms (second elastic arm) mutually away from, make described first, described first elastic arm and described second elastic arm of second liang of conducting terminal all have bigger deflection, even so described first, the wherein compression travel of described conducting terminal increase in second conducting terminal, described first, second conducting terminal also all can be born the load that the impartial compression travel by bigger causes, thereby avoided described first, one of them described two elastic arm is born more load and is surpassed the yield strength of itself and cause its plastic deformation in second conducting terminal, can't reply initial condition and causes described conducting terminal to be electrically conducted bad with the described electronic building brick that docks.

The above only is the best possible embodiments of this creation, and the variation of the equivalence that every this creation of utilization specification and diagramatic content are done all is included within this creation.

Claims (11)

1. an electric connector electrically connects one first butt joint electronic building brick and docks electronic building brick with one second, it is characterized in that,

Comprise:

One insulating body, described insulating body is provided with at least one accepting groove;

At least one first conducting terminal, described first conducting terminal are contained in each described accepting groove, and described first conducting terminal is provided with two first elastic arms, and two described first elastic arms have the gap, and the outside of each described first elastic arm has a contact site;

At least one second conducting terminal, described second conducting terminal is contained in each described accepting groove, described second conducting terminal has a base portion, and two second elastic arms that extend to form by described base portion, two described second elastic arms have the gap, and the inboard of each described second elastic arm is provided with a contact-making surface, and described contact-making surface is away from described base portion, and the gap of described contact-making surface is towards the direction convergent of described base portion;

Wherein, the contact site of described first elastic arm connects with the mutual corresponding slip of the contact-making surface of described second elastic arm, the contact site of described first elastic arm is between the contact-making surface of described second elastic arm, and the gap between the contact site of described first elastic arm is greater than the minimum clearance between the contact-making surface of described second elastic arm.

2. electric connector as claimed in claim 1 is characterized in that: the latter end that each described first elastic arm is provided with a linkage section and is extended by described linkage section, the distance between described two linkage sections is greater than the distance between described two latter ends.

3. electric connector as claimed in claim 2 is characterized in that: each described first elastic arm is provided with a bending segment and connects described linkage section and described latter end.

4. electric connector as claimed in claim 2 is characterized in that: the latter end outside of each described first elastic arm is provided with described contact site.

5. electric connector as claimed in claim 2 is characterized in that: the outside of the latter end of each described first elastic arm is provided with a guiding face, and described guiding face extends to described contact site, and the slip of the contact-making surface of described guiding face and described second elastic arm connects.

6. electric connector as claimed in claim 1 is characterized in that: described first conducting terminal has one first docking section, and this first docking section and described first is docked electronic building brick and is electrically conducted.

7. electric connector as claimed in claim 1 is characterized in that: the base portion of described second conducting terminal extends one second docking section, and described second docking section and described second is docked electronic building brick and is electrically conducted.

8. electric connector as claimed in claim 1 is characterized in that: the base portion of described second conducting terminal is convexly equipped with two holding sections, and described insulating body is arranged with two holding hole, and described fastening part is in described holding hole.

9. electric connector as claimed in claim 1, it is characterized in that: what described second conducting terminal can be free movable is contained in the described accepting groove, the described base portion of described second conducting terminal is provided with two shoulders, and described accepting groove is provided with two butting section correspondences and is shelved on described two shoulders.

10. electric connector as claimed in claim 1 is characterized in that: described first conducting terminal and described second conducting terminal are can stamping forming sheet.

11. electric connector as claimed in claim 1, it is characterized in that: described accepting groove is a rectangle, wherein, described accepting groove be aligned to its each relative longer sides towards adjacent described accepting groove one than minor face, and its each relatively than the longer sides of minor face towards adjacent described accepting groove.

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