Electrical connector

Abstract

An electrical connector (1) for attaching an IC package to a circuit member includes a base (3) defining four side walls, a number of terminals receiving in the base, a cover (4) slidably mounted on the base and a lever (5) slidably moving the cover relative to the base. The base defines a plurality of grooves (31) extending from one side wall of the base to any other side wall of the base and one end of the groove is communicated with exterior space to decline the temperature of the terminals.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an assembled view of an electrical connector in accordance with a preferred embodiment of the present invention;

FIG. 2 is a bottom view of the electrical connector in accordance with the preferred embodiment of the present invention and only several terminals are shown;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION

Reference will now be made to the drawings to describe the present invention in detail.

Referring to FIGS. 1-2, an electrical connector 1 for attaching an IC package (not shown) to a circuit member (not shown) comprises a housing 2 and a plurality of terminals (not shown). The housing 2 includes a base 3 embedded a number of terminals, a cover 4 slidably mounted on the base 3 and a lever 5 slidably moving the cover 4 relative to the base 3.

The base 3 has a rectangle configuration and defines a plurality of terminal-receiving cavities 30. A plurality of terminals are provided with one of the terminals being mounted in each cavity 30. The base 3 defines a first side wall 32, a second side wall opposite to the first side wall 33, a third side wall 34 and a fourth side wall 35 adjacent to the first and second side wall 32, 33.

The terminals are embedded in the terminal-receiving cavities 30 and the bottom of the terminals defines a plurality of soldering balls 6, the soldering balls 6 partially extend below the bottom of the base 3 to solder to the circuit member.

Similarly, the cover 4 is a generally rectangular or square plate and has a plurality of through holes 40 in the same grid pattern as the lead pins of the IC package, thus permitting the lead pins to be inserted in the through holes 40. There are several recesses 41 on the side wall of the cover 4 so as to take off the IC package from the cover 4 conveniently.

The lever 5 is rotatably attached to one end of the base 3 and may be rotated from a horizontal position in which it is parallel to the base 3 to a vertical position in which it is right angle to the base 3.

Referring to FIG. 2, the bottom of the base 3 defines a plurality of soldering balls 6 in rows and a plurality of grooves 31 are defined between two adjacent rows of soldering balls. The grooves 31 extend from the first side wall 32 to the second side wall 33 and one end of each of the grooves 31 is communicated with exterior to dissipate heat, the grooves 31 can extend from one of the side wall of the base 3 to any other side wall of the base also. The groove 31 is defined in one end of the base 3 near the circuit member. In fact, the groove 31 may be defined in the opposite end of the base 3 according the actual requests. The first side wall 32 defines a plurality of openings 36 which is communicated with exterior space to increase the space of dissipate heat. When the current through the terminals gets more and more greater, the temperature of the terminals gets more and more higher, but the heat in the terminal-receiving cavities 30 can flow to exterior space via the grooves 31, thus the temperature of the terminals can be declined.

While preferred embodiment in accordance with the present invention has been shown and described, equivalent modifications and changes known to persons skilled in the art according to the spirit of the present invention are considered within the scope of the present invention as defined in the appended claims.

Claims

1. An electrical connector for attaching an IC package to a circuit member comprising: a housing defining a plurality of side walls;a plurality of terminals;wherein the housing defines a plurality of grooves extending from one side wall to another side wall and at least one end of each of the grooves is communicated with exterior space.

2. The electrical connector as claimed in claim 1, wherein the housing includes a base receiving the terminals, a cover slidably mounted on the base and a lever slidably moving the cover relative to the base.

3. The electrical connector as claimed in claim 2, wherein the groove is defined in the base.

4. The electrical connector as claimed in claim 3, wherein the groove is defined in one end of the base near to the circuit member.

5. The electrical connector as claimed in claim 3, wherein the groove is defined in one end of the base near to the cover.

6. The electrical connector as claimed in claim 3, wherein the side wall of the base defines a plurality of openings.

7. The electrical connector as claimed in claim 1, wherein the groove extends from one side wall to an opposite side wall.

8. The electrical connector as claimed in claim 3, wherein the two side walls of the base defines a plurality of recesses so as to take off the IC package from the cover conveniently.

9. An electrical connector comprising: an insulative housing defining a bottom surface;a plurality of contacts disposed in the housing, each of said contacts including a solder ball at a bottom end thereof and essentially fully exposed outside the bottom surface with an end of the solder ball being flush with the bottom surface; whereina longitudinal groove recessed upwardly from the bottom surface to facilitate heat ventilation.

10. The electrical connector as claimed in claim 9, wherein said contacts are arranged in rows and every adjacent two rows defines said longitudinal groove therebetween.