BACKGROUNDING OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical connector for electrically connecting an electronic package with a circuit substrate, and more particularly to a sink type electrical connector with L-shaped frame.
2. Description of the Prior Art
A conventional electrical connector for electrically connecting an electronic package with a circuit substrate disclosed in U.S. Pat. No. 7,628,651 issued to Yeh on Dec. 8, 2009 includes an insulative housing and a retaining arrangement enclosing the insulative housing. The retaining arrangement includes a stiffener fixed on the circuit substrate, a clip pivotally mounted to the stiffener for retaining the electronic package and a lever pivotally mounted to the stiffener. The electrical connector is mounted on the circuit substrate and the electronic package is assembled on the insulative housing. The electrical connector has a complicated and high configuration not meeting needs of small and thin electronic equipments.
In view of the above, an improved electrical connector that overcomes the above-mentioned disadvantages is desired.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide a sink type electrical connector having L-shaped frame.
To fulfill the above-mentioned object, an electrical connector comprises a frame and a plurality of terminals received in the frame. The frame comprises a first portion defining a holding slot, a second portion extending angularly from the first portion and a retaining member formed on the second portion. The terminals each has a contact section and a solder tail extending out of the frame. The plurality of terminals are arranged two rows on the first portion and one row on the second portion. The contact sections of two rows terminals on the first portion are located at opposite sides of the holding slot and the contact sections of one row terminals on the second portion expose to an outer surface of the second portion. The present invention also provides an electrical connector assembly comprising a circuit substrate with an opening, the electrical connector sinking in the opening and an electronic package assembled to the electrical connector.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an assembled, perspective view of an electrical connector assembly in accordance with a preferred embodiment of the present invention;
FIG. 2 is an exploded, perspective view of the electrical connector assembly shown in FIG. 1, showing the electronic package detached from the electrical connector;
FIG. 3 is a front assembled, perspective view of the electrical connector shown in FIG. 1;
FIG. 4 is a rear assembled, perspective view of the electrical connector shown in FIG. 3;
FIG. 5 is a perspective view of a row of first terminals and a row of second terminals of the electrical connector shown in FIG. 3;
FIG. 6 is a perspective view of a row of third terminals of the electrical connector shown in FIG. 3;
FIG. 7 is a cross-sectional view taking along line 7-7 shown in FIG. 1; and
FIG. 8 is a cross-sectional view taking along line 8-8 shown in FIG. 1.
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 and 2, an electrical connector assembly 100 comprises a circuit substrate 2 defining a rectangle opening 21, an electrical connector 4 mounted in the rectangle opening 21 and an electronic package 3 assembled to the electrical connector 4. The electrical connector 4 electrically connects the electronic package 3 to the circuit substrate 2.
Referring to FIGS. 2 to 4, the electrical connector 4 comprising a frame 41 and a plurality of terminals 42 received in the frame 41. The frame 41 is L-shaped and has a first portion 410 with a holding slot 4101, a second portion 411 perpendicular to the first portion 410 and a retaining member 43 formed on the second portion 411. The retaining member 43 locates on one end of the second portion 411 and faces the first portion 410. In this embodiment, the retaining member 43 is a spring hook. Both the first portion 410 and the second portion 411 have a step section 4106, 4116 recessed from a bottom surface thereof so that the frame 41 sinks downwardly into the rectangle opening 21 of the circuit substrate 2.
The holding slot 4101 laterally opens and a guiding emboss 4102 projects therein. The electronic package 3 has a guiding cutout 31 corresponding to the guiding emboss 4102 for guiding the electronic package 3 inserting into the frame 41. With referring to FIG. 7, the first portion 410 has an upper wall 4103 with a chamfer 4105 for facilitating the electronic package 3 inserting into the holding slot 4101 and a lower wall 4104 projecting beyond the upper wall 4103 for supporting the electronic package 3. With referring to FIG. 8, the second portion 411 has a lower wall 4111 to support the electronic package 3.
Referring to FIGS. 5 to 8, the terminals 42 are retained in the first portion 410 and the second portion 411 of the frame 41 and comprise a row of first terminals 421 received in the upper wall 4103 of the holding slot 4101, a row of second terminals 422 received in the lower wall 4104 of the holding slot 4101 and a row of third terminals 423 received in the second portion 411. The three kinds of terminals 421, 422, 423 have similar configurations and each includes a spring contact section 425 extending out of the frame 41 for electrically connecting to the electronic package 3, a retaining section 426 retaining in the frame 41 and a soldering tail 427 extending out of the frame 41 for soldering on the circuit substrate 2. The soldering tails 427 are arranged on the step sections 4106, 4116 of the first and second portions 410, 411. The spring contact sections 425 of the first and second terminals 421, 422 project in the holding slot 4101 and the spring contact sections 425 of the third terminals 423 exposes on an outer surface of the second portion 411.
Referring to FIGS. 1 and 2, in assembly, the electrical connector 4 is mounted on the circuit substrate 2. The guiding cutout 31 engages with the guiding emboss 4102 until the electronic package 3 is locked by the retaining member 43. Then, a first edge 32 of the electronic package 3 is inserted into the holding slot 411 and sandwiched by the first and second terminals 421, 422. A second edge 33 of the electronic package 3 is pressed on the third terminals 423. Since the second edge 33 is not sandwiched by two of terminals as the first edge 32, the retaining member 43 can ensure the electrical connection between the second edge 33 and the third terminals 423. The electrical connector 4 has a simple and low configuration meeting needs of small and thin electronic equipments.
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.
Patent Grant
8002557
