CN1674363A

CN1674363A - Electric connector with lock arm

Info

Publication number: CN1674363A
Application number: CNA2005100656473A
Authority: CN
Inventors: 铃木满
Original assignee: Tyco Electronics AMP KK
Current assignee: TE Connectivity Corp
Priority date: 2004-03-10
Filing date: 2005-03-10
Publication date: 2005-09-28
Anticipated expiration: 2025-03-10
Also published as: KR20060043400A; JP4338084B2; CN100521392C; TW200539523A; JP2005259435A

Abstract

The present invention provided an electric connector with a lock arm in which the dimension of the connector housing in height direction and width direction is suppressed and made low in height, and durability of the lock arm is improved by effectively dispersing stress generated in the leg part of the lock arm. The insulating housing 2 has a recessed part 16 opened to the outside face 12 of the insulating housing 2 between at least two adjoining cavities and a leg part 22 of the lock arm 20 protrudes from the bottom face 18 of the recessed part 16, and the leg part 22 has a narrow and long cross section along a parallel direction of the locking part 24a and lock releasing part 20b of the lock arm 20.

Description

The electric connector of arm with lock

Technical field

The present invention relates to electric connector, relate in particular to electric connector with the hammerlock that is connected with matching connector and disconnects.

Background technology

Existing electric connector generally has and the interconnective hammerlock of matching connector (for example Patent Document 1, with reference to Fig. 2).In this piece Patent Document 1, put down in writing on the outer wall of the locking device (hammerlock) of electric connector and the contact resettlement section that connector shell integrally is installed in connector shell.This hammerlock have with the perpendicular direction of the plug direction of electric connector on support, the sticking department that is connected with matching connector and press...withing one's finger of wider width make the hammerlock bending to remove the connection releasing portion that is connected of this sticking department after pressing.

[licence 1] real clear 55-171985 communique (Fig. 2) of opening

Summary of the invention

The electric connector of above-mentioned prior art, because support is arranged on the outside of the outer wall of contact resettlement section, so the support of connector grows to from outer wall outstandingly, and the whole height of electric connector has been increased.Because electric connector is too big, in the such behind small space of the liquid crystal panel that for example PC and TV etc. use, just can't install sometimes.In addition, hammerlock is crooked easily, and in order to make hammerlock have counter-bending necessary intensity, the width on the perpendicular direction of support Design Cheng Zaiyu electric connector plug direction will be wanted wideer.For this reason, the size with the whole Width of the perpendicular hammerlock of the plug direction of matching connector becomes big.Like this, the width dimensions of electric connector is maximized.

In view of the foregoing, the objective of the invention is, a kind of electric connector that can limit connector shell short transverse and Width size and highly little arm with lock is provided.

In addition, another object of the present invention is that the electric connector of the arm with lock of a kind of stress that can disperse hammerlock support place to produce effectively, enhancing hammerlock durability is provided.

The electric connector of arm with lock of the present invention has the insulation crust that brings to few 2 adjacent cavitys, the electrical contact that in each cavity, puts, and be darted at hammerlock on the insulation crust by support integral body, it is characterized in that: this hammerlock has sticking department that engages with matching connector and the latch-release portion that is connected that removes this sticking department, on the electric connector of this arm with lock, between 2 adjacent cavitys of insulation crust, has recess at least to the outside of insulation crust opening, the support of hammerlock is provided with from the bottom surface of recess is outstanding, simultaneously, has elongated cross section along this support in the orientation of sticking department and latch-release portion.

Here, said " elongated cross section " is meant that support cross section part is longer than shape with the size of the perpendicular width of this orientation along the size of the orientation of sticking department and latch-release portion.

In addition, support is connected between sticking department and the locking contact site, and in a side of the fitting portion of matching connector, the adjacent area of sticking department forms concave curved surface, simultaneously, preferably forms continuous convex surface from concave surface to the bottom surface.

At the rear portion of support, forming the gap that the latch-release portion that makes hammerlock when hammerlock is crooked can contact the wedge shape of end face between the outside of hammerlock and insulation crust.

Electric connector for arm with lock of the present invention, insulation crust has the recess to the outside of insulation crust opening between at least 2 adjacent cavitys, the support of hammerlock is provided with from the bottom surface of recess is outstanding, and, therefore show following effect owing to have elongated cross section along this support in the orientation of sticking department and latch-release portion.

Just, because support is received within the recess, the whole height direction is reduced, the final connector that forms highly little arm with lock.In addition, owing to do not need to shorten the length of support, therefore obtained sufficient elasticity.Moreover, owing to have elongated cross section, therefore can provide full intensity to support along this support in the orientation of sticking department and latch-release portion.

In addition, support is connected between sticking department and the locking contact site, fitting portion one side at matching connector, the adjacent area of sticking department forms concave curved surface, form under the situation of continuous convex surface to the bottom surface from concave curved surface, owing to effectively disperseed the stress that support is generated when hammerlock is crooked, therefore the damage that has alleviated hammerlock makes hammerlock have durability.

Description of drawings

Fig. 1 is the plane graph of the electric connector of arm with lock of the present invention;

Fig. 2 is the front view of electric connector of the arm with lock of Fig. 1;

Fig. 3 is the end view of electric connector of the arm with lock of Fig. 1;

Fig. 4 is the rear view of electric connector of the arm with lock of Fig. 1;

Fig. 5 is the profile along the line 5-5 of Fig. 2;

Fig. 6 is the profile along the line 6-6 of Fig. 2;

Fig. 7 is the local amplification sectional view of expression base portion and hammerlock annexation;

Fig. 8 is the sectional view of the state of two connectors of expression before each other will be chimeric;

Fig. 9 is the sectional view of the state of two connectors of expression after chimeric fully each other.

Description of reference numerals

The electric connector of 1 arm with lock

2 insulation crusts

10 cavitys

12 end faces (outside)

16 recesses

18 bottom surfaces

20 hammerlocks

20b rear portion (latch-release portion)

22 supports

The 22a concave curved surface

The 22b convex surface

24 connect projection (sticking department)

50 electrical contacts

100 matching connectors

Embodiment

Preferred embodiment to the electric connector (being designated hereinafter simply as connector) of arm with lock of the present invention is described below with reference to accompanying drawings.Fig. 1 is the plane graph of connector of the present invention, and Fig. 2 is a front elevation, and Fig. 3 is a side view, and Fig. 4 is a back view, and Fig. 5 is the profile of the line 5-5 of Fig. 2.Below, referring to figs. 1 through Fig. 5 the embodiment of connector 1 of the present invention is described.Connector 1 has insulation crust 2, gives prominence to being provided with two

fitting portions

4,4 spaced apart from each other in the front portion of shell 2.In addition, for convenience of explanation, claim that fitting

portion

4,4 sides are anterior, claim that its opposition side is the rear portion.Fitting portion the 4, the 4th is with the part of matching connector 100 (Fig. 9)

tabling.Fitting portion

4,4 is outstanding parallel to each other to be arranged on the base portion 6 at insulation crust 2 rear portions, and its cross section is roughly quadrangle.This

fitting portion

4,4 forms the cavity 10 of perforation to the rear end 6b of insulation crust 2 from the front end 8 of each fitting portion 4.Although in this cavity 10, dispose following electrical contact 50 (Fig. 9), in each accompanying drawing before, all omitted electrical contact 50.

On the sidewall 4a in fitting portion 4 outsides, form rectangular aperture 4b shown in Figure 5.In front end (not shown) contact of this opening 4b electrical contact 50,2 places are stuck at insulation shell.At the inboard 4c place of sidewall, be formed with the shallow trench 4d (Fig. 5) that extends back from the rear end of rectangular aperture 4b.When electrical contact 50 inserted in the cavity, electrical contact 50 just was received among the groove 4d.

Next, with reference to Fig. 6 hammerlock 20 is illustrated.Fig. 6 is the profile along the line 6-6 of Fig. 2.On insulation crust 2 (outside) 12, be equivalent to the place between the

cavity

10,10, form recesses 16 along the plug direction 14 of connector 1.Recess 16 extends to the rear end from the front end 6a of base portion 6 always, i.e. the rear end 6b of insulation shell 2.On the bottom surface 18 of recess 16, the support 22 of hammerlock 20 and insulation shell 2 are integrally outstanding together to be provided with.In bottom surface 18, anterior bottom surface 18a is lower, and bottom surface, rear portion 18b is higher slightly than anterior bottom surface 18a.

The anterior 20a of the hammerlock 20 that forms on this recess 16 is narrow writing board shape.The downside of 20a forwardly, with the perpendicular direction of plug direction 14 on form a pair of separate be connected projection (sticking department) 24.Form block 24a at the leading section that connects projection 24.With matching connector 100 tablings in, be easy to make the retention tab 106 that connects projection 24 and matching connector 100 to engage.The rear portion 20b of hammerlock 20 (latch-release portion) is than wide tabular of anterior 20a, and it has in the rear end of rear portion 20b the vertically flange 26 of the outstanding whole width that occupies rear portion 20b that is provided with.This flange 26 has the function that stops finger to slide when pressing rear portion 20b when press...withing one's finger.

In addition, above-mentioned support 22 forwardly fuses between 20a and the rear portion 20b.

In conjunction with Fig. 7 this support 22 is described.Fig. 7 is the local amplification sectional view that base portion 6 and hammerlock 20 annexations are shown.Support 22 has concave curved surface 22a and convex surface 22b, extends to form concave curved surface 22a in fitting portion 4 one sides from the lower surface 20c of hammerlock 20, and this concave surface 22a continues to extend until the end of

recess

16 and 18 forms convex surface 22b.In the rear side of support 22, between hammerlock 20 and bottom surface, rear portion 18b, form concave curved surface 22c backward again.Concave curved surface 22 is that the lower surface 20c of hammerlock 20 is formed continuously through increase the protrusion 28 that prolongs on plug direction 14.The width of the width of protrusion 28 and support 22 is promptly roughly the same with the size w (Fig. 4) that plugs on the direction 14 perpendicular directions.This protrusion 28 and bottom surface, rear portion 18b form the clearance G of wedge shape.When pressing the rear portion 20b of hammerlock 20 when press...withing one's finger, protrusion 28 contact bottom surface, rear portion 18b, this wedge shape is set the shape that makes hammerlock 20 that the above bending of limit can not take place for.And, the following 20c of hammerlock 20 is contacted with top 12 of insulation crust 2, can limit the bending of hammerlock 20.

Because above-mentioned continuous concave curved surface 22a and convex surface 22b form compound curved surface, the stress when making hammerlock 20 bendings can not concentrate on a place along this compound curved surface, has disperseed the stress of this moment effectively, therefore can prevent from support 22 is applied excessive power.In other words, in the bending, though generate tensile stress on compound curved surface, the shape of setting compound curved surface can make this tensile stress fully below the allowable stress value on the direction of removing hammerlock 20.

In addition, important part also is: the size (Fig. 7) of the length d of upper edge, support 22 cross section plug direction will be grown than the size (Fig. 4) of above-mentioned width w.In view of the above, at interpolar, be in the narrow recess 16 of the width that forms between the cavity, can constitute 1 bigger support 22 of relative intensity.Owing to form support 22 and hammerlock 20 as described above, therefore can limit the height of hammerlock 20 12 projections that project upwards above insulation crust 2.The overall dimension of above-mentioned connector 1 can be restricted to: the about 7mm of width, and along the about 10mm of length of plug direction 14, the about 4mm of the height of its hammerlock that contains 20 (thickness), the about 1.4mm of height (Fig. 7) of hammerlock 20 projections.

Then, with reference to Fig. 8 and Fig. 9 the state of this connector 1 and matching connector tabling is described.Fig. 8 is the sectional view that is illustrated in the state of two connectors before each other will be chimeric, and Fig. 9 is the sectional view that the state of two connectors after chimeric fully each other is shown.In Fig. 8, omitted the electrical contact 50 of connector 1.At first with reference to accompanying drawing 8, the fitting portion 4 of connector 1 is inserted on the insulation crust 102 of matching connector 100 and forms chimeric recess 104, this chimeric recess 104.Then, when connector 1 was pressed into matching connector 100, the connection projection 24 of hammerlock 20 was carried on the retention tab 106 of matching connector 100, becomes state shown in Figure 8.At this moment, though generate maximum stress at support 22 places of hammerlock 20, because above-mentioned concave curved surface 22a and the formed compound curved surface of convex surface 22b have prevented stress concentrating in support 22 front portions.Certainly, because bending has also taken place the concave curved surface 22c of rear portion side, avoided stress to concentrate.

Further make two connectors closer to each other, as shown in Figure 9, because connector 1 is entrenched in the matching connector 100 fully, therefore connecting projection 24, engage hammerlock 20 with retention tab 106 locked.Then, the electrical contact 50 of connector 1 electrically contacts with electrical contact 108 formation of matching connector 100.Owing to understood the state that this electrical contact 50 and electrical contact 108 electrically contact in the state of the art, therefore in the detailed explanation of this omission to electric contact state.

Though more than connector 1 of the present invention is had been described in detail, the present invention is not limited to the foregoing description, can make various deformation and change to it.For example,, promptly adopt two electrical contacts 50, but also can be used for the extremely above connector of 3 utmost points or 3 although understand that above-mentioned connector is the two poles of the earth.

Claims

1. the electric connector of an arm with lock, have the insulation crust that at least 2 adjacent cavitys are arranged, the electrical contact that in above-mentioned cavity, puts and by the whole outstanding hammerlock that is arranged on the above-mentioned insulation crust of support, the latch-release portion that is connected that this hammerlock has the sticking department that engages with matching connector and removes this sticking department is characterized in that: described insulation crust has between described 2 adjacent cavitys the recess to the outside of described insulation crust opening at least.The support of described hammerlock is outstanding the setting from the bottom surface of described recess, and has elongated cross section at the above support of orientation along described sticking department and described latch-release portion.

2. the electric connector of arm with lock as claimed in claim 1, it is characterized in that: described support is connected between described sticking department and the described latch-release portion, side at the fitting portion of described matching connector, the adjacent area of described sticking department forms concave curved surface, forms continuous convex surface from this concave curved surface to described bottom surface.