BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a cable connector assembly, and more particularly to a cable connector assembly having improved shielding effect.
2. Description of Related Art
Universal Serial BUS (USB) is a widely used input/output interface adapted for many electronic devices, such as personal computers and related peripherals. Nowadays, USB forum has published several specification editions for USB, and transmitting rate of USB has become higher and higher. As electronic industry develops, higher transmitting rate of USB based connection accessory is needed.
A USB 3.0 POWER-B cable connector assembly usually includes an electrical connector, a cable electrically connected with the electrical connector, and an insulative member over-molded around the electrical connector and a front portion of the cable. The electrical connector includes an insulative housing and a metal case enclosing the insulative housing. The insulative housing usually defines a narrower upper portion and a wider lower portion. Due to the limits of manufacturing technology, a slit is formed on two opposite sides of the metal case. Therefore, the cable connector assembly further includes a copper foil enclosing the metal shell to enhance the shielding effect. However, when the insulative member is over-molded, the copper foil located at the slit is easily broken for a lack of effective support by the metal case.
Hence, a cable connector assembly with improved spacer is desired to overcome the above problems.
BRIEF SUMMARY OF THE INVENTION
According to one aspect of the present invention, a cable connector assembly comprises: a cable including a number of wires, an insulative housing; a plurality of contacts retained in the insulative housing and soldered to corresponding wires of the cable, a spacer assembled to the insulative housing and retaining respective rear portions of the contacts, a metal case enclosing the insulative housing and having a slit, a copper foil enclosing the metal case and covering the slit, and an insulative member over-molded on the copper foil and a front end of the cable, wherein the spacer defines a sustaining portion extending into the slit for supporting a portion of the copper foil located above the slit.
The foregoing has outlined rather broadly the features and technical advantages of the present invention in order that the detailed description of the invention that follows may be better understood. Additional features and advantages of the invention will be described hereinafter which form the subject of the claims of the invention.
BRIEF DESCRIPTION OF THE DRAWINGS
For a more complete understanding of the present invention, and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a perspective assembled view of a cable connector assembly according to the present invention;
FIG. 2 is an exploded view of the cable connector assembly shown in FIG. 1;
FIG. 3 is a view similar to FIG. 2 but with several elements removed;
FIG. 4 is partly assembled view of the electrical connector shown in FIG. 3, but from a different perspective;
FIG. 5 is a further assembled view of the electrical connector shown in FIG. 4;
FIG. 6 is a different perspective view from FIG. 5 with several elements removed;
FIG. 7 is a further assembled view of the electrical connector shown in FIG. 5;
FIG. 8 is a partly assembled view of the cable connector assembly shown in FIG. 2; and
FIG. 9 is a further assembled view of the cable connector assembly shown in FIG. 8.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIGS. 1-2, a cable connector assembly 100 according to a preferred embodiment of the present invention includes an electrical connector 10, a cable 20 electrically connecting to the electrical connector 10, a copper foil 40 enclosing a conjunction area between the electrical connector 10 and the cable 20, and an insulative member 50 over-molded around the copper foil 40.
Referring to FIGS. 3-6, the electrical connector 10 includes a metal case 110, an insulative housing 12 contained in the metal case 110, a spacer 120 assembled to a rear end of the insulative housing 12, and a number of contacts 13 retained in the insulative housing 12. The metal case 110 includes a first case 11 and a second case 30 engaged with the first case 11. The cable 20 includes a number of wires for transmitting electrical signals, and the wires are electrically connected to the corresponding contacts 13.
Referring to FIGS. 2-5, the first case 11 includes a tubular portion 111 and a drawer-shaped portion 112 obliquely and upwardly extending from a rear end of the tubular portion 111 along a front-to-back direction. A receiving space 13 is formed by four conjunctive walls of the tubular portion 111, and the width of a top wall is less than the width of a bottom wall, thus symmetrically, two step-shaped portions are formed on the two side walls respectively. Two sidewalls of the drawer-shaped portion 112 respectively are against the outside of the two sidewalls of the tubular portion 111 and fixed to the corresponding sidewall at the overlapping part. A slit 60 is formed between a side wall of the drawer-shape portion 112 and an upper portion of the tubular portion 111. The seconded case 30 includes a top cap 31 and an installation portion 32 extending vertically downwards from two opposite sides of the top cap 31. The top cap 31 has a U-shaped groove 311 and two shielding portions 312 beside the U-shaped groove 311. The Installation portion 32 encloses the top part of the drawer-shaped portion 112, and the top portion of the first case 11 extends through the U-shaped groove 311 and is exposed above the top cap 31. The shielding portions 312 cover the slits 60.
Referring to FIGS. 2-6, the insulative housing 12 includes a main body 121 and a fixing member 1211 unitarily extending from a rear end of the main body 121 along a front-and-rear direction. The main body 121 is received in the receiving space 113 of the first case 11. A number of dovetail slots 1212 are defined on the bottom side of the fixing member 1211. The spacer 120 includes a first spacer 122 and a second spacer 123, and both are fixed to the rear portion of the main body 121 under the fixing member 1211 and received in the receiving space 113 together with the insulative housing 12, and a bottom sidewall of second spacer 123 abuts a top sidewall of the first spacer 122. A rear side of the first spacer 122 defines a first step 1221 and a second step 1222 along a bottom-and-top direction. Both bottom sidewalls of the first step 1221 and the second step 1222 define a number of receiving slots 1220 along a first direction which a plug connector is inserted or withdrawn, and the receiving slots 1200 extend through the first spacer 122 from a front sidewall to a rear sidewall thereof A number of receiving slots 1230 are defined through the second spacer 123 from the front sidewall to the rear sidewall thereof A number of fixing blocks 1231 corresponding to the dovetail slots 1212 of the fixing member 1211 are defined on the top side of the second spacer 123. The fixing blocks 1231 are received and fixed in the corresponding dovetail slots 1212 for fixing the second spacer 123 to the bottom of the fixing member 1211.
Referring to FIGS. 2-6, the contact 13 includes a contacting portion 131, a fixing portion 132 retained in the insulative housing 12, and a soldering portion 133 for soldering with the cable wire. The soldering portions 133 of the contacts 13 are respectively received in the receiving slots 1220 and the receiving slots 1230. The soldering portions 133 are soldered to the corresponding wires of the cable 20.
Referring to FIGS. 4-6, a sustaining portion 1200 is defined on the spacer 120. The sustaining portion 1200 includes a first sustaining portion 124 outwardly extending from the two opposite ends of the first spacer 122 and a second sustaining portion 125 outwardly extending from the two opposite ends of the second spacer 123. The first sustaining portion 124 and the second sustaining portion 125 are received in the slit 60 of the first case 11 to fill the slit 60.
Referring to FIGS. 1-9, in assembling, firstly, the contacts 13 are retained in the insulative housing 12. The spacer 120 then is fixed to the rear portion of the insulative housing 12 and receives the rear ends of the contacts 13. The wires of cable 20 are soldered to the corresponding contacts 13. The combination of the insulative housing 12, the spacer 120, the contacts 13, and the cable is received in the receiving space 113 of the tubular portion 111. The second case 30 is engaged with the drawer-shaped portion 112. The copper foil 40 encloses the rear portions of the first case 11 and the second case 30 and the front portion of the cable 20. The insulative member 50 is over-molded around the copper foil 40, and the front portion of the first case 11 is exposed to the outside of the insulative member 50.
As shown and described, the sustaining portion 1200 extending from the spacer 120 fully fills the slits 60 so that the inner side of the copper foil 40 can be fully supported by the sustaining portion 1200 when the copper foil 40 covers the first case 11 and the second case 30, insuring the copper foil 40 not to be broken during over-molding the insulative member 50 and thus not affecting the shielding effect of the cable connector assembly.
Patent Application
20150357765
