Electrical connector

Abstract

An electrical connector comprises a dielectric housing which comprises a base portion, a plurality of contact receiving recesses, and engaging holes in diagonal corners thereof; a plurality of conductive contacts retained in said contact receiving recesses; a pick up comprising first engaging pole and second engaging pole corresponding to said engaging holes; each of the first and second engaging poles having a shape of a circular cylinder with a plurality of ribs on a circular surface thereof; said first engaging pole having at least three ribs while said second engaging pole having at least two ribs; the line joining the center of said first engaging pole and the center of said second engaging pole being perpendicular to the line joining the centers of said two ribs of said second engaging pole.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded, perspective view of an electrical connector of related art.

FIG. 2 is a perspective view of a pick up of the electrical connector of FIG. 1;

FIG. 3 is an assembled, perspective view of an electrical connector of one embodiment of the present application;

FIG. 4 is an exploded, perspective view of the electrical connector of FIG. 3;

FIG. 5 is a perspective view of a pick up of the electrical connector of FIG. 4;

FIG. 6 is a perspective view of a pick up of the electrical connector of FIG. 5 viewed from another aspect.

DETAILED DESCRIPTION OF THE INVENTION

Reference will now be made in detail to the preferred embodiment of the present application.

Referring to FIGS. 3-6, an electrical connector 100 which can electrically connect a flexible print circuit board(not shown) to a printed circuit board 40 comprises a dielectric housing 10, four conductive contacts 20 which retained in the dielectric housing 10 and a pick up 30 which engaging with the dielectric housing 10.

The dielectric housing 10 like a rectangle board which comprises two first receiving recesses 11 and two second receiving recesses 12 alternatively located in the opposite side of the dielectric housing, two engaging holes 13 in the diagonal corners of the dielectric housing, wherein each receiving recess 11, 12 comprises holding cavities 111, 121.

The conductive contact 20 comprises a retaining portion 23, a contacting portion 21 for electrically connecting the flexible printed circuit board , a connecting portion 24 for electrically connecting the printed circuit board 40 and a curved portion 22 connecting the contacting portion 21 and the retaining portion 23. Two holding sections 231 extending out from two opposite sides of said retaining portion 23, a portion between said two holding sections 231 is curved to form said connecting portion 24.

The pick up 30 comprises a rectangle board like body member 31, a first engaging pole 32, a second engaging pole 33 and two protrusion 34. The first engaging pole 32 and the second engaging pole 33 are on the diagonal corners of the body member 31 corresponding to the engaging holes 13 in the dielectric housing 10. Each engaging pole 32, 33 has a shape of a circular cylinder with a plurality of evenly spaced ribs 321, 331 on the circular surface. Wherein the first engaging pole 32 has three ribs 321 while the second engaging pole 33 has two ribs 331, The line A-A joining the center of said first engaging pole and the center of said second engaging pole is perpendicular to the line B-B joining the centers of said two ribs of said second engaging pole.

When assembling, the conductive contacts 20 is assembled into the contact receiving recess 11, 12, then assemble the pick up 30 onto upper portion of the dielectric housing 10. When assembling the pick up 30, the second engaging pole 32 with two ribs 321 can make tiny movement along the diagonal direction if the engaging poles 32, 33 are not just in the specified dimension, so it can prevent slant of the pick up 30 and protect the pick up 30 and the dielectric housing 10 not to be damaged. After the pick up 30 is assembled, the protrusions 34 stacked on the dielectric housing 10 and the engaging poles 32, 33 is inserted into the engaging holes 13, so the ribs 321, 331 of the engaging poles interfere with the inner wall of the engaging holes 13, and the pick up 30 is hold on the dielectric housing 10. Then a pick up device (not shown) can suck the upper surface of the pick up 30 and move the electrical connector 100 to the correct position on the printed circuit board 40.

The length and width of the ribs 321, 331 of the engaging poles 32, 33 can be adjusted to meet the required engaging strength between the pick up 30 and the dielectric housing 10, further, the diameter of the engaging poles 32, 33 can set small, so there leaved a large space between the engaging pole 32, 33 and the engaging hole 13 which can contain the scraps produced. Furthermore, the second engaging pole 32 with two ribs 321 can make tiny movement along the diagonal direction even the engaging poles 32, 33 are not just in the specified dimension, so it can prevent slant of the pick up 30 and protect the pick up 30 and the dielectric housing 10 not to be damaged.

While preferred embodiment of the present application shown and described, it is envisioned that those skilled in the art may devise various modifications of the present invention.

It will be understood that the invention may be embodied in other specific forms without departing from the spirit thereof. The present examples and embodiments, therefore, are to be considered in all respects as illustrative and not restrictive, and the invention is not to be limited to the details given herein.

Claims

1. An electrical connector comprising: a dielectric housing comprising a base portion, a plurality of contact receiving recesses, and engaging holes in diagonal corners thereof;a plurality of conductive contacts retained in said contact receiving recesses;a pick up comprising first engaging pole and second engaging pole corresponding to said engaging holes; each of the first and second engaging poles having a shape of a circular cylinder with a plurality of ribs on a circular surface thereof; said first engaging pole having at least three ribs while said second engaging pole having at least two ribs; the line joining the center of said first engaging pole and the center of said second engaging pole being perpendicular to the line joining the centers of said two ribs of said second engaging pole.

2. The electrical connector of claim 1, wherein said ribs on said engaging poles are evenly spaced.

3. The electrical connector of claim 1, wherein said conductive contacts are retained alternatively in said dielectric housing.

4. The electrical connector of claim 1, wherein said conductive contacts comprises a contacting portion, a connecting portion and a curve portion which connecting said contacting portion and connecting portion, said contacting portion sticks out from said contact receiving recess.

5. The electrical connector of claim 4, wherein said conductive contacts further comprises a retaining portion, two holding sections extending out from two side of said retaining portion, a portion between said two holding sections is curved to form said connecting portion.

6. The electrical connector of claim 1, wherein said contact receiving recesses comprise the first receiving recesses and the second receiving recesses, each contact receiving recess comprises a holding cavities for engaging with said holders of conductive contacts.

7. An electrical connector assembly comprising: an insulative housing essentially defining a square configuration;two sets of contacts inserted into the housing from two opposite sides of the housing, each of said contacts defining a mating portion exposed above a top face of the housing and a mounting tail located on the corresponding side of the housing;a pick up cap including a plate defining a similar square configuration, a pair of posts extending from two opposite diagonal corners of the plate to retain to the housing, and at least one supporting protrusion seated upon the top face of the housing.

8. The electrical connector assembly as claimed in claim 7, wherein said supporting protrusion is located around a middle region of the plate and seated upon a middle area of the top face of the housing.

9. The electrical connector assembly as claimed in claim 7, wherein each of said posts defines a plurality of ribs thereon, and the ribs on one of said posts extend in different radial directions from those on the other of said posts.

10. The electrical connector assembly as claimed in claim 7, wherein each of said posts defines a plurality of ribs thereon, and an amount to the ribs on one of said posts is different from that on the other of said posts.

11. The electrical connector assembly as claimed in claim 7, wherein one of said posts defines a pair of ribs thereon, and said pair of ribs spaced from each other in a direction perpendicular to a diagonal direction defined by said pair of posts.

12. The electrical connector assembly as claimed in claim 7, wherein further including another supporting protrusion under a condition that said supporting protrusion and said another supporting protrusion are respectively located on said two sides of the housing and are offset from each other in a transverse direction along which said two sides extend.