# Patent

## Title
Electrical connector assembly

## Abstract

An electrical connector assembly includes a first insulating body and a second insulating body connected with the first insulating body. A plurality of first contacts are disposed in the first insulating body, and a plurality of second contacts are disposed in the second insulating body. The rear-touching portion of the first contacts and the rear-touching portion of the second contacts touch each other. The front-touching portion of the first contacts and the front-touching portion of the second contacts mate with other connectors. There are a plurality of fixing blocks provided on the rear portion of the first insulating body and corresponding fixing holes defined in the rear portion of the second insulating body, so the electrical connector assembly according to the present invention has a simplified structure and is convenient for assembling.

## Background
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electrical connector assembly, and more particularly, to an electrical connector assembly having simplified structure and being convenient for assembling.
2. The Related Art
It is known that electrical connector assemblies are indispensable units installed in electrical products for transmitting signals and power. For present, more and more electrical connector assemblies are designed to adapt to the variety, the multiple functions and the high transmission properties of the electrical products.
There is an electrical connector assembly, which has two mating faces for respectively mating with matching connectors. This electrical connector assembly commonly includes a first insulating body, a second insulating body and an assembling cover. The first insulating body receives a plurality of first contacts therein. The second insulating body receives a plurality of second contacts therein. The rear-touching portions of the first contacts and the rear-touching portions of the second contacts are respectively connected with a PCB. The assembling cover assembles with the first insulating body and the second insulating body together. As using, the front-touching portions of the first contacts and the front-touching portions of the second contacts respectively mate with the matching connectors.
However, the electrical connector assembly provides a separate assembling cover for assembling the first insulating body and the second insulating body, which results in complicated structure and inconvenience for assembling.
SUMMARY OF THE INVENTION
Accordingly, an object of the present invention is to provide an electrical connector assembly having simplified structure and being convenient for assembling.
The electrical connector assembly includes a first insulating body having a front portion and an opposite rear portion, a plurality of fixing blocks being provided on the top and bottom surfaces of the rear portion, a plurality of first contact grooves crossing through the first insulating body; a plurality of first contacts each of which has a positioning-portion, a front-touching portion, a rear-touching portion, the positioning-portion held in the first contact groove, the front-touching portion located out of the front portion of the first insulating body, the rear-touching portion located out of the rear-portion of the first insulating body; a second insulating body having a front portion and an opposite rear portion, a plurality of fixing holes being defined in the rear-portion of the second insulating body, the fixing blocks of the first insulating body locked in the fixing holes of the second insulating body, a receiving cavity crossing through the second insulating body, the rear-touching portions of the first contacts being received in the receiving cavity; and a plurality of second contacts disposed in the receiving cavity, each second contact having a positioning-portion, a front-touching portion and a rear-touching portion, the front-touching portion of the second contact located at the front portion of the second insulating body, the rear-touching portion of the second contact located at the rear portion of the second insulating body, the rear-touching portion of the second contact touching with the rear-touching portion of the first contact in the receiving cavity.
In the present invention, there are a plurality of fixing blocks provided on the rear portion of the first insulating body and corresponding fixing holes defined in the rear portion of the second insulating body, so that the electrical connector assembly according to the present invention has a simplified structure and is convenient for assembling.
These and other features, objects and advantages of the present invention will be more fully apparent from the following detailed description base forth below when taken in conjunction with the accompanying drawings.



BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded view of an electrical connector assembly according to present invention;
FIG. 2 is a perspective view of a first insulating body of the electrical connector assembly shown in FIG. 1;
FIG. 3 is a perspective view of a first contact of the electrical connector assembly;
FIG. 4 is a perspective view of a second insulating body of the electrical connector assembly shown;
FIG. 5 is a perspective view of a contact base of the electrical connector assembly;
FIG. 6 is a perspective view of a second contact of the electrical connector assembly;
FIG. 7 is a perspective view of the first insulating body with the first contacts assembled therein;
FIG. 8 is a perspective view of the contact base with the second contacts assembled thereon;
FIG. 9 is a perspective view of the second insulating body with the second contacts and the contact base assembled viewing from rear side;
FIG. 10 is another perspective view of the second insulating body with the second contacts and the contact base assembled viewing from another side;
FIG. 11 is a perspective view of the electrical connector assembly according to the present invention; and
FIG. 12 is a perspective view of the electrical connector assembly with partial portion torn off to show the first contact.



DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Please refer to FIG. 1. An electrical connector assembly 1 according to the present invention is illustrated. The electrical connector assembly 1 includes a first insulating body 10, a pair of latching arms 20 latched at the two sides of the first insulating body 10, a plurality of first contacts 30 disposed in the first insulating body 10, a second insulating body 40 connected with the first insulating body 10, a contact base 50 received in the second insulating body 40 and a plurality of second contacts 60 disposed in the second insulating body 40.
With reference to FIG. 2, the first insulating body 10 has a front portion 15 and an opposite rear portion 16. A plurality of first contact grooves 11 crosses through the first insulating body 10. The first insulating body 10 further has two through holes 12 at the two sides of the first contact grooves 11. The two through holes 12 fixes the latching arms 20 therein. The top and bottom surfaces of the rear portion 16 of the first insulating body 10 provide four fixing blocks 13 (two top fixing blocks 13 shown in FIG. 2).
With reference to FIG. 3, each first contact 30 has a positioning-portion 311, a front-touching portion 312 and an opposite rear-touching portion 313. The positioning-portion 311 can be a snake-shape. The front-touching portion 312 and the rear-touching portion 313 can be a strip-shape. Each first contact 30 further has a hook 314 which is formed above the rear-touching portion 313.
With reference to FIG. 4, the second insulating body 40 has a front portion 45 and an opposite rear portion 46. There is a receiving cavity 41 crossing through the second insulating body 40. A plurality of fixing grooves 411 are defined in the side walls of the receiving cavity 41. A plurality of hook grooves 412 are defined in the top wall of the rear portion 46. Two notches 413 are defined in the top surface of the second insulating body 40 for communicating two of the hook grooves 412 with outside. The second insulating body 40 further has two passageways 42 respectively defined at the two sides of the receiving cavity 41. The rear portion 46 of the second insulating body 40 extends rearwards to form four flat pieces 43. Each flat piece 43 defines a fixing hole 431 therein.
With reference to FIG. 5, the contact base 50 includes a lateral board 51 and an integrated vertical board 52. The lateral board 51 defines a plurality of second contact grooves 511 thereon. The second contact grooves 511 cross through the vertical board 52. The contact base 50 provides a plurality of fixing flanges 512 corresponding to the fixing grooves 411.
With reference to FIG. 6, each second contact 60 has a positioning-portion 611, a front-touching portion 612 and an opposite rear-touching portion 613. The positioning-portion 611 can be assumes a lateral strip-shape. The front-touching portion 612 can be a vertical strip-shape and the rear-touching portion 613 can be a crook-shape.
With reference to FIGS. 7-12, for assembling the electrical connector assembly 1, firstly, the first contacts 30 is disposed in the first insulating body 10 with the positioning-portion 311 of each first contact 30 held in the first contact grooves 11 and the front-touching-portion 312 and the rear-touching-portion 313 of each first contact 30 respectively located out of the front-portion 15 and the rear-portion 16 of the first insulating body 10 (shown in FIG. 7). Next, the second contacts 60 is disposed on the contact base 50 with the positioning-portion 611 of the second contact 61 held in the second contact grooves 511 and the front-touching portion 612 attached to the vertical board 52 and the rear-touching portion 613 located above the lateral board 51 (shown in FIG. 8). Then, the contact base 50 with the second contacts 60 disposed thereon is further inserted into the receiving cavity 41, so that the fixing flanges 512 of the contact base 50 are infixed into the fixing grooves 411, the front-touching-portion 612 located at the front-portion 45 and the rear-touching-portion 613 located at the rear-portion 46 (shown in FIG. 9 and FIG. 10). Finally, the electrical connector assembly 1 are integrated together by inserting the rear-touching-portion 313 and the hooks 314 into the receiving cavity 41 and locking the fixing blocks 13 into the fixing holes 431 (shown in FIG. 11). With reference to FIG. 12, the rear-touching portions 313 of the first contacts 30 touch with the rear-touching portions 613 of the second contacts 61 and the hooks 314 of the first contacts 30 are received in the hook grooves 412 when the assembling of the electrical connector assembly 1 is completed.
As mentioned above, there are a plurality of fixing blocks 13 provided on the rear portion 16 of the first insulating body 10 and corresponding fixing holes 431 defined in the rear portion 46 of the second insulating body 40, so the electrical connector assembly 1 according to the present invention has a simplified structure and is convenient for assembling.
However, although a preferred embodiment of the present invention has been described in detail hereinabove, the variations and/or modifications, such as abandoning the contact base 50 and directly disposing the second contacts in the second insulating body by defining the second contact grooves in bottom wall of the receiving cavity 41 directly, will fall within the spirit and scope of the present invention, as defined in the appended claims.

## Claims

1. An electrical connector assembly, comprising:
a first insulating body having a front portion and an opposite rear portion;
a plurality of first contacts each of which has a positioning-portion, a front-touching portion, a rear-touching portion and a hook, the hook being formed above the rear-touching portion, the positioning-portion being disposed in the first insulating body, the front-touching portion being located out of the front portion of the first insulating body, the rear-touching portion and the hook being located out the rear-portion of the first insulating body;
a second insulating body connected with the first insulating body, which has a front portion and an opposite rear portion, a receiving cavity crossing through the second insulating body, the second insulating body further defining a plurality of hook grooves in the top wall of the receiving cavity, the rear-touching portions of the first contacts being received in the receiving cavity and the hooks of the first contacts being received in the hook grooves, at least two hook grooves upwardly communicating with outside;
a plurality of second contacts disposed in the receiving cavity, each second contact having a positioning-portion, a front-touching portion and a rear-touching portion, the front-touching portion of the second contact located at the front portion of the second insulating body, the rear-touching portion of the second contact located at the rear portion of the second insulating body, the rear-touching portion of the second contact touching with the rear-touching portion of the first contact in the receiving cavity; and
a contact base, the contact base received in the receiving cavity of the second insulating body, the contact base defining a plurality of second contact grooves thereon, the positioning-portion of the second contact being held in the second contact groove.

2. The electrical connector assembly as claimed in claim 1, wherein the side walls of the receiving cavity of the second insulating body define a plurality of fixing grooves, the contact base provides a plurality of fixing flanges corresponding to the fixing grooves and the fixing flanges are infixed in the fixing grooves.

3. The electrical connector assembly as claimed in claim 1, wherein the positioning-portion of the first contact is a snake-shape, the front-touching portion and the rear-touching portion of the first contact are a strip-shape.

4. The electrical connector assembly as claimed in claim 1, wherein the positioning-portion of the second contact is a lateral strip-shape, and the front-touching portion of the second contact is a vertical strip-shape and the rear-touching portion of the second contact is a crook-shape.

5. The electrical connector assembly as claimed in claim 1, wherein the top surface of the second insulating body defines a plurality of notches therein for communicating the hook grooves with outside.

6. The electrical connector assembly as claimed in claim 1, wherein the second insulating body further has a plurality of passageways respectively defined at the two sides of the receiving cavity.