This non-provisional application claims priority to and the benefit of, pursuant to 35 U.S.C. § 119(a), Patent Application Serial No. 201710358883.7 filed in P.R. China on May 19, 2017, the entire content of which is hereby incorporated by reference.
Some references, which may include patents, patent applications and various publications, are cited and discussed in the description of this disclosure. The citation and/or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference.
The present invention relates to a cable connector assembly, and in particular to a cable connector assembly in which terminals are directly soldered to cables.
A conventional cable connector assembly includes an insulating body, multiple terminals arranged in the insulating body, a shielding sheet arranged between the terminals, a metal shell wrapping the insulating body, and multiple cables. Each cable has a core, and the cables include at least one coaxial cable and at least one non-coaxial cable. In order to achieve a good grounding effect, a person skilled in the art solders a shielding layer of the coaxial cable to the shielding sheet. Since conventional tin-soldering is time consuming, in order to increase the efficiency of soldering, laser soldering is usually adopted as the soldering method. However, high temperature generated by laser soldering can easily lead to deformation or melting of an insulating layer of the non-coaxial cable adjacent to the shielding layer, affecting its insulating effect, or even leading to exposure of the wire of the non-coaxial cable which is supposed to be wrapped by the insulating layer, resulting in the risks of short-circuiting or electrical leakage.
Therefore, a heretofore unaddressed need to design a new cable connector assembly exists in the art to address the aforementioned deficiencies and inadequacies.
An objective of the present invention is to provide a cable connector assembly in which a coaxial cable and a non-coaxial cable is arranged side by side, and when they are fixed by laser soldering, the insulating layer therebetween is not damaged, thus ensuring its insulating effect.
To achieve the foregoing objective, one aspect of the invention provides a cable connector assembly, which includes: a body; a plurality of terminals, comprising: a signal terminal having a first wire-bonding end extending outside the body; and a non-signal terminal having a second wire-bonding end extending outside the body along a same direction as the first wire-bonding end; a shielding sheet, provided on the body, and having a soldering portion extending outside the body along the same direction as the first wire-bonding end; a signal cable, having a first core, a first insulating layer wrapping on the first core, and a shielding layer wrapping on the first insulating layer, wherein the first core has a first soldering portion exposed from the first insulating layer and configured to be soldered to the first wire-bonding end, and the shielding layer is electrically connected with the soldering portion to form a contact area; and a non-signal cable, having a second core and a second insulating layer wrapping on the second core, wherein the second core has a second soldering portion exposed from the second insulating layer and configured to be soldered to the second wire-bonding end, and in an extending direction of the soldering portion, a front end of the contact area is flush with a rear end of the second insulating layer or is located behind the rear end of the second insulating layer.
In certain embodiments, a third insulating layer wraps on the shielding layer, and a rear end of the third insulating layer is flush with the rear end of the second insulating layer or is located in front of the rear end of the second insulating layer.
In certain embodiments, the cable connector assembly includes a plurality of signal cables and a plurality of non-signal cables, wherein a rear end of the first core of each of the signal cables is located behind a rear end of the second core of each of the non-signal cables.
In certain embodiments, a rear end of the second core is flush with a rear end of the shielding layer or is located in front of the rear end of the shielding layer.
In certain embodiments, the cable connector assembly includes a plurality of signal terminals, wherein the signal terminals comprise three terminal pairs, and the shielding sheet has three soldering portions respectively corresponding to the first wire-bonding ends of the three terminal pairs.
In certain embodiments, the non-signal terminal comprises a grounding terminal, and the shielding sheet has a plurality of soldering portions, wherein one of the soldering portions corresponds to the second wire-bonding end of the grounding terminal.
In certain embodiments, the non-signal cable comprises a grounding cable, and the second soldering portion of the grounding cable is soldered to the one of the soldering portions corresponds to the second wire-bonding end of the grounding terminal.
In certain embodiments, the first core comprises a high-speed signal core and a universal serial bus (USB) 2.0 core, and the second core comprises a grounding core and a power core, wherein a diameter of the power core is greater than a diameter of the high-speed signal core, the diameter of the high-speed signal core is greater than or equal to a diameter of the grounding core, and the diameter of the grounding core is greater than or equal to a diameter of the USB 2.0 core.
In certain embodiments, the terminals are arranged symmetrically in an upper row and a lower row, and the shielding sheet is arranged between the terminals in the upper row and the lower row.
In certain embodiments, the non-signal terminal comprises two grounding terminals, and two second wire-bonding ends of the two grounding terminals are connected to each other through a connecting frame.
In certain embodiments, the connecting frame has a bending portion electrically connected with the soldering portion.
In certain embodiments, the shielding layer is electrically connected with the connecting frame.
In certain embodiments, the non-signal terminal comprises a grounding terminal and a power terminal, and a front end of the second wire-bonding end of the grounding terminal is located between a front end of the first wire-bonding end and a front end of the second wire-bonding end of the power terminal.
In certain embodiments, the shielding sheet has a plurality of soldering portions, and a front end of at least one of the first wire-bonding end and the second wire-bonding end is located in front of a front end of at least one of the soldering portions.
In certain embodiments, the shielding layer is soldered to the soldering portion by laser soldering.
In certain embodiments, the body has a base, a first extending portion is formed by extending forward from the base, the first wire-bonding end is arranged on an upper surface of the first extending portion, a second extending portion is formed by extending forward from the base, and the second wire-bonding end is arranged on an upper surface of the second extending portion.
In certain embodiments, a front end of the first wire-bonding end is flush with a front end of the first extending portion, and a front end of the second wire-bonding end is flush with a front end of the second extending portion.
Compared with the related art, certain embodiments of the invention have the following beneficial advantages: the second insulating layer and the contact area are arranged in tandem to be staggered with each other, in a subsequent process of soldering the contact area by laser soldering, the second insulating layer is not melted by heat and damaged, thereby ensuring its insulating effect. The second soldering portion is flush with the shielding layer, such that both can be continuously soldered in the subsequent process of laser soldering, thereby increasing the efficiency of soldering
These and other aspects of the present invention will become apparent from the following description of the preferred embodiment taken in conjunction with the following drawings, although variations and modifications therein may be effected without departing from the spirit and scope of the novel concepts of the disclosure.
The accompanying drawings illustrate one or more embodiments of the invention and together with the written description, serve to explain the principles of the invention. Wherever possible, the same reference numbers are used throughout the drawings to refer to the same or like elements of an embodiment.
The present invention is more particularly described in the following examples that are intended as illustrative only since numerous modifications and variations therein will be apparent to those skilled in the art. Various embodiments of the invention are now described in detail. Referring to the drawings, like numbers indicate like components throughout the views. As used in the description herein and throughout the claims that follow, the meaning of “a”, “an”, and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein and throughout the claims that follow, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise. Moreover, titles or subtitles may be used in the specification for the convenience of a reader, which shall have no influence on the scope of the present invention.
It will be understood that when an element is referred to as being “on” another element, it can be directly on the other element or intervening elements may be present therebetween. In contrast, when an element is referred to as being “directly on” another element, there are no intervening elements present. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.
Furthermore, relative terms, such as “lower” or “bottom” and “upper” or “top,” may be used herein to describe one element's relationship to another element as illustrated in the Figures. It will be understood that relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the Figures. For example, if the device in one of the figures is turned over, elements described as being on the “lower” side of other elements would then be oriented on “upper” sides of the other elements. The exemplary term “lower”, can therefore, encompasses both an orientation of “lower” and “upper,” depending of the particular orientation of the figure. Similarly, if the device in one of the figures is turned over, elements described as “below” or “beneath” other elements would then be oriented “above” the other elements. The exemplary terms “below” or “beneath” can, therefore, encompass both an orientation of above and below.
As used herein, “around”, “about” or “approximately” shall generally mean within 20 percent, preferably within 10 percent, and more preferably within 5 percent of a given value or range. Numerical quantities given herein are approximate, meaning that the term “around”, “about” or “approximately” can be inferred if not expressly stated.
As used herein, the terms “comprising”, “including”, “carrying”, “having”, “containing”, “involving”, and the like are to be understood to be open-ended, i.e., to mean including but not limited to.
The description will be made as to the embodiments of the present invention in conjunction with the accompanying drawings in
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In the above-mentioned two embodiments, the shielding sheet 3 horizontally protrudes forward outside the body 1. In other embodiments, the shielding sheet 3 can be bent by 90 degrees or other angles to protrude outside the body 1. Correspondingly, the first wire-bonding ends 211 and the second wire-bonding ends 221 can be modified in the same way. In such ways, arrangements can be customized according to different application requirements, thereby allowing the cable connector assembly 100 of the present invention to have good adaptability to spatial conditions.
A cable connector assembly according to certain embodiments of the present invention have the following beneficial advantages:
1. The shielding layer 43 is electrically connected with the soldering portion 31, thereby enhancing the grounding effect of the cable connector assembly. The contact area 5 and the second insulating layer 62 are staggered in tandem, such that in the subsequent process of laser soldering of the contact area 5, the second insulating layer 62 is not damaged, thereby ensuring the insulating effect, and avoiding from short-circuiting. Moreover, the second soldering portion 611 is flush with the shielding layer 43, such that the subsequent processes of laser soldering of the second soldering portion 611 and the second wire-bonding end 221 as well as laser soldering of the shielding layer 43 and the soldering portion 31 can be continuously performed, thus increasing the efficiency of soldering.
2. The grounding core 61a is soldered to both the second wire-bonding end 221 of the grounding terminal 22a and the soldering portion 31, so that the shielding layer 43 is electrically conductive with the grounding terminal 22a and the grounding core 61a through the shielding sheet 3, thus enhancing the grounding effect of the cable connector assembly 100.
3. The connecting frame 222′ encloses the first wire-bonding ends 211 and second wire-bonding ends 221′ of all of the terminals 2, and the bending portion 2221′ is electrically connected with the soldering portions 31, so that the grounding terminals 22a′ are directly conductive with the shielding sheet 3. The shielding layers 43 are soldered to the bending portion 2221′, thus enhancing the shielding effect of the cable connector assembly 100, and alleviating crosstalk interference.
4. The second soldering portions 611 and the exposed sections 421 are staggered in tandem, so that heat generated in the process of laser soldering of the second soldering portions 611 does not melt the exposed sections 421 to cause the portions of the first cores 41 that are supposed to be wrapped to be exposed, thus preventing the risk of short-circuiting caused thereby.
The foregoing description of the exemplary embodiments of the invention has been presented only for the purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.
The embodiments are chosen and described in order to explain the principles of the invention and their practical application so as to activate others skilled in the art to utilize the invention and various embodiments and with various modifications as are suited to the particular use contemplated. Alternative embodiments will become apparent to those skilled in the art to which the present invention pertains without departing from its spirit and scope. Accordingly, the scope of the present invention is defined by the appended claims rather than the foregoing description and the exemplary embodiments described therein.
Number | Date | Country | Kind |
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2017 1 0358883 | May 2017 | CN | national |
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