CN1044652C

CN1044652C - Electrical connector

Info

Publication number: CN1044652C
Application number: CN 89109619
Authority: CN
Inventors: 榎本郁夫
Original assignee: AMP Inc
Current assignee: TE Connectivity Corp
Priority date: 1988-12-30
Filing date: 1989-12-29
Publication date: 1999-08-11
Anticipated expiration: 2004-12-29
Also published as: JP2659019B2; WO1990007806A1; CN1043831A; JPH02181376A

Abstract

An electrical connector comprises an insulation housing having a plurality of contact-receiving cavities in which electrical contacts are to be inserted and secured. Each of the contacts includes a base section for engaging with a first wall of the cavity, a contact-receiving section, a conductor-engaging section and an engaging section having engaging members being pressed into channels in the third and fourth walls of the cavity thereby securing the contact in the cavity. Wing members have ends disposed in spaces in the cavity.

Description

Electrical connector

The present invention relates generally to a kind of electric connector, and more specifically to a kind of electric connector that is particularly suitable for requiring compact and high-density installation, it has the spill electrical contact so that hold the convex contact that cooperatively interacts.

Common having in the spill electrical contact connector of (these contacts can hold the convex contact that cooperatively interacts), concave contactor is to be fixed in the interior a plurality of parallel contacts of insulation crust with precipitous protrusion to hold in the cavity, the protrusion that is formed at the both sides of contact engages with cavity inner wall, and forms box-like support part so that insert the electrical contact of the convex that matches hold the opening of cavity at contact near.

But, owing to the added strong pressure of sidewall of contact is held in qualification, also being arranged in same direction simultaneously owing to insert many electrical contacts that contact holds cavity at the protrusion of concave contactor both sides, shell is easy to bending or distortion.Consequently by this way contact is fixed on contact and holds in the cavity they have been produced bad effect, thereby make the spacing of contact inaccurate.In addition, have and box-likely support that the spill electrical contact of part is relatively heavier, so they can not adapt to connector miniaturization and highdensity requirement, and because need more abundant metal make contact and be difficult to reduce manufacturing cost.

The invention is intended to address the above problem.For this reason, comprise an insulation booth according to electric connector of the present invention, it has a plurality of energy contacts hold cavity, at cavity first and second ends first and second openings are arranged, also comprise and a plurality ofly will insert the spill electrical contact of cavity from first opening, each contact is to be made through punching press by conductive metal sheet, and it has a base part that comprises first and second surfaces and first and second ends, and it also has one and is used for it is fixed to the bonding part that cavity wall gets on.Base part extends axially along each spill electrical contact, and the first wall of first surface and each cavity engages.The support part is bent with respect to second surface in both sides at first end of base part, extends a pair of elastic arm from this support part to second end of pedestal, and this elastic arm defines the contact holding portion.Be formed at and support the limit base of holding up of part to join on second wall relative with the cavity first wall.The fastener that constitutes the bonding part is being adjacent to the both sides extension of base part first end from base part, and compress into the groove of a predetermined length, this groove is terminal and form from first end to the second on the third and fourth relative side of shell cavity is whole.Second opening part that formed wing-like part is bordering on cavity in portion on second end of the both sides of base part joins the 3rd sidewall and the 4th sidewall of the first side wall both sides of cavity to, perhaps compress into second opening that is adjacent to cavity and with first and and second sidewall or third and fourth sidewall that becomes to intersect between formed gap.

In the embodiment that recommends, the end of the joint fastener of this bonding part is twisted an angle with respect to the line stretcher of joint fastener, so that provide certain elasticity to applanation, the height of sheet end is chosen to be the height greater than this groove.

In another embodiment, the fastener of bonding part is separated into step-like, so that provide elasticity to applanation, the height of the fastener that it separates is greater than the height of groove.

In addition, the wing-like part of base part has with respect to its first plane and becomes forniciform end, so that locate to provide applanation endways.

According to connector of the present invention, the fastener that constitutes concavity electrical contact bonding part is to be pressed onto in the groove of shell, and contact pedestal partly joins on the wall that contact holds cavity.The upper edge of the support of contact part join to above-mentioned the first side wall opposite whole on, joining on two sidewalls that intersect with above-mentioned two walls away from the formed wing-like part in body part both sides of supporting part, thereby contact is integrally firmly being adorned the jail in the enclosure.

To also give detailed explanation with reference to the accompanying drawings by example in the back according to connector of the present invention.

Fig. 1 is the top view by contact in the connector of the present invention;

Fig. 2 is the side elevation view of the contact among Fig. 1;

Fig. 3 is a perspective view of seeing connector housings from the contact back;

Fig. 4 is the insulation crust that is used to install contact.

Fig. 5 is the sectional view along the 5-5 line of Fig. 4;

Fig. 6 is the sectional view along the 6-6 line of Fig. 4;

Fig. 7 is the top view of another embodiment of contact;

Fig. 8 is the side elevation view of the contact of Fig. 7.

Fig. 1 has shown spill electrical contact 10 by the conducting metal plate stamping and forming is made to Fig. 3.Contact 10 comprises base part 11, holds the part 12 of the convex electrical contact that cooperatively interacts, and leg, terminals or conductor bonding part 13 and joint or contact fixing divide 14.

Base part 11 extends by the axle of horizontal direction along contact 10 substantially, and is limited by the first and second surperficial 11a, 11b and the first and second terminal 11c, 11d, in the second terminal 11d both sides wing-like part 15 is arranged all.

The end 15a of the first surface 11a bending of wing-like part 15 oriented base parts 11 is to provide the elasticity to applanation.

Contact holding portion 12 comprises a pair of spring contact arm 17, and it extends to the second terminal 11d of base part 11 from supporting part 16.Support part 16 to form, and meet at right angles with it substantially by the first terminal 11c both sides of base part 11.This a pair of spring contact arm 17 in Fig. 2 lower limb and the second surface 11b of base part 11 separately, and made it support that part 16 has a narrower spacing leaving, as shown in Figure 1 towards their free end direction by skew.Simultaneously, spring contact arm 17 makes sweep 18 play contact point when engaging with the convex electrical contact that cooperatively interacts outwardly-bent near its free powder end.

Fig. 2 can clearly illustrate that, protrusion 19 extends to such an extent that be higher than the top edge of supporting the contact arm 17 above the part 16.Terminal portion 13 coincides and straight-line extension with the center line of contact arm 17 substantially, but reverse with wing member 15, and it is from the first terminal 11c of base part 11, and through being adjacent to the sweep 20 of the first terminal 11c, its terminal is a sharp-pointed end 21.Bonding part 14 is to be made of the attachment 22 that extend out from the contiguous first terminal 11c in the both sides of base part 11, attachment 22 have

crooked end

23,23 height H is greater than the thickness of base part 11, and with respect to angles of extension axis bending of attachment 22, thereby provide certain elasticity to applanation.

Shown in Figure 4 is to be used for contact 10 assemblings insulation crust 30 within it.In Fig. 5 and Fig. 6, contact 10 is assembled in the insulation crust 30.Shell 30 is pressed into by horizontal by suitable plastic or similar material, and it has the first terminal 30a and the second terminal 30b.Shell 30 contains many contacts and holds cavity 33, they are separated into two rows by horizontal wall 31, and be separated into some row by some vertical walls 32, make each cavity 33 be limited by four sidewalls, be first wall and the second wall 31a, 31b, and the 3rd wall and wall 32a, the 32b that intersect with first wall and the second wall 31a, 31b.Each cavity 33 has first and second opening 33a and the 33b.The groove 34 of predetermined length is formed near the first opening 33a by two sidewall 32a of each cavity 33 and 32b, and extends to the second terminal 30b of shell 30 from the first terminal 30a.The width W of each groove 34 is selected narrowlyer than the height H of the fastener 23 of bonding part 14.Have chance with 35 in the formation of the second opening 33b place of each cavity 33.Protrusion 36 has the surface 37 of inclination, and they are to form at the vicinity second opening 33b place of third and fourth sidewall 32a of each cavity 33 and 32b, thereby form space 38 between inclined surface 37 and first wall 31a.

In the cavity 33 of the shell 30 of said structure,, insert a plurality of contacts 10 from the first opening 33a front by wing-like part 15 guiding.When contact 10 was installed, attachment end 23 was stressed and produce their elasticity of opposing along groove 34, up to 34 with till parts 23 engage.Simultaneously, the first surface 11a of base part 11 engages with sidewall 31a, support the protrusion 19 of part 16 to engage with the sidewall 31b relative with sidewall 31a, the bent back ends 15a of wing-like part 15 and sidewall 32a, 32b engage, and flexiblely be pressed into space 38, terminals 13 reach the outside from the first terminal 30a of shell 30.

Fig. 7 and shown in Figure 8 be the another kind of embodiment of contact 10.Contact 10 in this additional embodiments ' characteristics be bonding part 14 ' attachment 23 ' by crack 24 separated into two parts, and depart from mutually with step-like each other, to improve elasticity applanation.Engagement end 23 ' height H be chosen as greater than the width W of groove 34 and base part 11 ' thickness.Contact 10 ' all identical with structure with the shape and the structure of contact 10 appropriate sections in the shape of all other parts.

As previously mentioned, engagement end 23,23 ' preferably crooked or have step-likely, but that they also can directly be made is thicker slightly than the width of the groove of fixing them.Simultaneously, wing-like part 15 preferably has crooked terminal 15a with stressed in space 38, but also can be designed to therein pressurized and form crooked terminal 15a.In some cases, the end of wing-like part can be pressed on the sidewall 32a-32b with friction mode.

The usage of connector as described herein for instance, can be inserted the terminal portion 13 of recessed enough electrical contacts 10 in the aperture of printed circuit board (PCB), also can assign to the contact accommodation section of convex electrical contact insertion contact 10 to realize being electrically connected.

According to connector of the present invention, in the attachment pressurization that constitutes spill electrical contact bonding part being inserted the groove in the shell, the two side that the base part of contact and the contact in the shell hold cavity combines, the protrusion of the support sector office of contact engages with the cavity sidewalls of at first mentioning, simultaneously, from the wing-like part of holding components base component both sides far away also and with near sidewall that above-mentioned sidewall intersects engages or be pressed into cavity second opening space among.Therefore, the concavity electrical contact is complete and be stabilized in reliably in the shell, like this, when with a connector plug that cooperatively interacts, can avoid the unsteadiness physically of contact in the cavity.In addition, help avoid the bending or the deformation of shell, and avoid the irregular aligning of adjacent contact, because the attachment of bonding part are that the short transverse of shell is exerted pressure to the Width of groove only according to connector of the present invention.Owing to form more contact cavities at the length direction of shell than the short transverse of shell is general, so the present invention is more effective to the connector with a large amount of contacts.If the engagement end of bonding part is twisted or separate and form step-like so that elasticity to be provided, and its height is greater than the width of groove, then the frictional strength between the groove will increase, therefore the joint between fastener and the groove is strengthened, and this makes the spill electrical contact more fixing in shell again.

In addition, the bent back ends of the wing-like part of base part provides flexible to applanation, therefore, if wing-like part is when being pressed in the space, contact is stabilized in the shell forcefully.

Claims

1. electric connector, comprise one have a plurality of first and second ends (30a, the contact that extends between 30b) holds the shell (30) of cavity (33), and a plurality ofly is contained in described contact and holds electrical contact (10 in the cavity (33), 10 '), it is characterized in that:

Each described cavity (33) have a square generally main part and from the two side of described cavity (33) the outward extending groove (34) that preset width (W) arranged,

Each described electrical contact (10,10 ') has straight generally base part (11,11 '), this base part (11,11 ') is formed with attachment (22,22 ') and with basically with described base part (11,11 ') vertically meet at right angles from two ends (11c, 11d) outward extending wing member (15), a pair of contact arm (17,17) extend along described base part (11,11 ') from the relative support part (16) that is adjacent to described first end (11c);

Wherein said attachment (22,22 ') and described wing member (15) with step-like bending or distortion, bigger than the width (W) of described groove (34) a little height (H) is provided, holds in the cavity (33) in order to described electrical contact (10,10 ') is fixed on corresponding described contact securely.

2. according to the electric connector of claim 1, it is characterized in that described contact holds cavity (33) and forms with two rows, different rows' groove (34) is formed on the distally that described contact holds cavity (33).