Patent Application
20180331474
This non-provisional application claims priority to and the benefit of, pursuant to 35 U.S.C. § 119(a), Patent Application Serial No. 201720504992.0 filed in P.R. China on May 9, 2017, and Patent Application Serial No. CN201720525802.3 filed in P.R. China on May 12, 2017. The entire contents of the above-identified applications are incorporated herein in their entireties 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 an electrical connector, and more particularly to an electrical connector capable of preventing an electromagnetic interference between signal terminals.
Disclosed in a Chinese patent with the patent number of CN201020663926.6 is an electrical connector, including an insulating body, multiple signal terminals, a grounding member and multiple shielding sheets. Multiple accommodating tubes are provided on the insulating body, each signal terminal is correspondingly accommodated in one accommodating tube, the multiple shielding sheets are assembled in the insulating body in a stacking manner, multiple shielding holes are provided on each shielding sheet, each shielding hole correspondingly surrounds the periphery of one accommodating tube, a notch slot is provided on the accommodating tube where the grounding member is located, and the grounding member has an extending portion extending out of the notch slot, such that the edge of the extending portion is electrically connected to the edge of the shielding sheet, thus achieving a shielding effect between each two adjacent ones of the signal terminals, and preventing from an interference during signal transmission.
However, in order to avoid short circuiting when the signal terminals urge against the shielding sheets, each signal terminal is not provided with the extending portion urging against the shielding sheet, such that the signal terminals and the grounding members are different in structure, thereby increasing the processing difficulty of the signal terminals and the grounding members during practical production. Moreover, during assembly, an operator may easily mistakenly assemble the signal terminals into the accommodating tubes where the grounding members should be located, such that the signal terminals do not urge against the shielding sheets, thus affecting the shielding effect of the electrical connector, and reducing the anti-interference capability during signal transmission.
Therefore, a heretofore unaddressed need to design a novel electrical connector exists in the art to address the aforementioned deficiencies and inadequacies.
An objective of the present invention is to provide an electrical connector, which is capable of preventing an electromagnetic interference between signal terminals.
To achieve the foregoing objective, one aspect of the invention provides an electrical connector, which includes: an insulating body, provided with a plurality of accommodating holes penetrating through the insulating body vertically, the accommodating holes comprising signal accommodating holes and ground accommodating holes, wherein each of the signal accommodating holes is provided with a stopping portion; a plurality of terminals, configured for contacting a chip module, and comprising signal terminals accommodated in the signal accommodating holes and ground terminals accommodated in the ground accommodating holes; and at least one shielding sheet, accommodated in the insulating body; wherein the at least one shielding sheet or each of the terminals is provided with an urging portion, the ground terminals and the at least one shielding sheet contact each other through the urging portions, and the stopping portions stop the urging portions to prevent the signal terminals and the at least one shielding sheet from contacting each other.
In certain embodiments, each of the signal terminals and each of the ground terminals are of a same structure and respectively provided with a connecting portion in a planar shape, and an upper elastic arm formed by bending and extending upward from the connecting portion, configured for conductively connected to the chip module.
In certain embodiments, a plurality of urging portions are provided, and the urging portions are only provided on the at least one shielding sheet.
In certain embodiments, the stopping portion of each of the signal accommodating holes is located between a corresponding one of the urging portions and the upper elastic arm of a corresponding one of the signal terminals, and the urging portion corresponding to each of the ground accommodating holes urges against the upper elastic arm of a corresponding one of the ground terminals.
In certain embodiments, a lower elastic arm is formed by bending and extending downward from the connecting portion, configured for conductively connected downward to a circuit board; the stopping portion of each of the signal accommodating holes is located between a corresponding one of the urging portions and the lower elastic arm of a corresponding one of the signal terminals, and the urging portion corresponding to each of the ground accommodating holes urges against the lower elastic arm of the ground terminals.
In certain embodiments, each of the signal terminals is farther away from the urging portions than each of the ground terminals.
In certain embodiments, each of the signal accommodating holes is farther away from the urging portions than each of the ground accommodating holes.
In certain embodiments, each of the signal accommodating holes and each of the ground accommodating holes are respectively provided with at least one position limiting portion located between the shielding sheets and the upper elastic arm.
In certain embodiments, the shielding sheet has a flat portion located at one side of an edge of the connecting portion, each of the urging portions is formed by bending and extending from the flat portion, and a plate surface of each of the urging portions urges against an edge of a corresponding one of the ground terminals.
In certain embodiments, the upper elastic arm bends and extends from a top end of the connecting portion to one side of the flat portion, and then bends and extends to an opposite side of the flat portion.
In certain embodiments, a retaining portion is formed by extending from a side of the connecting portion opposite to the shielding sheet to be retained to the insulating body.
In certain embodiments, the retaining portion is parallel to a plate surface of the flat portion.
In certain embodiments, the electrical connector further includes a metal sheet having a planar base located below the flat portion, wherein a bottom end of the flat portion contacts a top end of the base.
In certain embodiments, a plurality of openings are concavely provided at the bottom end of the flat portion, an extending portion is formed by extending upward from the top end of the base to be accommodated in one of the openings, and a contact portion is formed by bending and extending upward from the extending portion to urge against a plate surface of the corresponding shielding sheet.
In certain embodiments, each of the urging portions is formed by bending and extending downward from one of the openings, and the contact portion urges against the plate surface of a corresponding one of the urging portions.
In certain embodiments, a protruding portion is protrudingly provided on a plate surface of the contact portion to urge against the plate surface of a corresponding one of the urging portions.
In certain embodiments, a notch is concavely provided at a top end of the flat portion, each of the urging portions is formed by bending and extending upward from the notch, and the plate surface of each of the urging portions urges against an edge of the upper elastic arm of a corresponding one of the ground terminals.
In certain embodiments, each of the urging portions has a connecting section formed by bending and extending from the notch toward the edge of the upper elastic arm, and an urging section formed by vertically extending upward from the connecting section, wherein a free end is formed by bending and extending from the urging section to be away from the edge of the upper elastic arm, and a plate surface of the urging section urges against the edge of the upper elastic arm.
In certain embodiments, the at least one shielding sheet corresponds to a row of the terminals, the insulating body is provided with an accommodating groove for accommodating the at least one shielding sheet, and the accommodating groove is communicated with the signal accommodating holes and the ground accommodating holes.
In certain embodiments, the shielding sheet is provided with a plurality of through slots, the insulating body is provided with a plurality of positioning portions accommodated in the through slots respectively, a partitioning wall is provided between each of two adjacent ones of the accommodating holes, and the partitioning wall and the positioning portions are arranged abreast.
Compared with the related art, certain embodiments of the invention have the following beneficial advantages. Each shielding sheet or each terminal is provided with an urging portion, thus ensuring the ground terminals to urge against the shielding sheets, and achieving a shielding effect between the signal terminals. The stopping portions stop the urging portions, thus avoiding the shielding sheets from contacting with the signal terminals, and preventing short circuiting of the signal terminals.
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
As shown in
In other embodiments, the urging portions 32 may be provided on the terminals 2. Alternatively, the shielding sheets 3 and the terminals 2 are provided with the urging portions 32 respectively. As shown in
As shown in
As shown in
As shown in
As shown in
As shown in
A electrical connector according to another embodiment of the present invention is shown in
To sum up, the electrical connector according to certain embodiments of the present invention has the following beneficial effects.
(1) Each shielding sheet 3 or each terminal 2 is provided with an urging portion 32, thus ensuring the ground terminals 2B to urge against the shielding sheets 3, and achieving a shielding effect between the signal terminals 2A. The stopping portions 112 stop the urging portions 32, thus avoiding the shielding sheets 3 from contacting with the signal terminals 2A, and preventing short circuiting of the signal terminals 2A.
(2) The urging portion 32 corresponding to each of the ground accommodating holes 11B urges against the upper elastic arm 22 or the lower elastic arm 23 of the corresponding ground terminal 2B. When the chip module 5 presses downward onto the upper elastic arm 22 or the lower elastic arm 23, the upper elastic arm 22 or the lower elastic arm 23 can be elastically deformed to move, such that the upper elastic arm 22 scrapes the plate surface of the corresponding shielding sheet 3, thereby removing an oxidation layer formed on the plate surface of the shielding sheet 3, enhancing an urging effect between the ground terminals 2B and the shielding sheets 3, and effectively preventing from an electromagnetic interference between conductive terminals.
(3) Each of the signal accommodating holes 11A and each of the ground accommodating holes 11B are respectively provided with at least one position limiting portion 111 located between the shielding sheets 3 and the upper elastic arm 22. The position limiting portions 111 are used for positioning the shielding sheets 3 into the signal accommodating holes 11A and the ground accommodating holes 11B, thus avoiding the upper elastic arms 22 from urging against the shielding sheets 3.
(4) When the chip module 5 presses downward onto the upper elastic arm 22, the upper elastic arm 22 urges against the lower elastic arm 23, so as to form a first conductive path passing through the chip module 5, the upper elastic arm 22, the connecting portion 21, the lower elastic arm 23 and the circuit board 6 in sequence, and a second conductive path passing through the chip module 5, the upper elastic arm 22, the lower elastic arm 23 and the circuit board 6 in sequence. Due to a parallel connection between the first conductive path and the second conductive path, the total impedance value is reduced, and the signal transmission performance is improved.
(5) The signal terminals 2A are farther away from the urging portions 32 than the corresponding ground terminals 2B, and the signal accommodating holes 11A are farther away from the urging portions 32 than the corresponding ground accommodating holes 11B, thus increasing the distance between the urging portions 32 and the corresponding signal terminals 2A, and avoiding the shielding sheets 3 from urging against the signal terminals 2A.
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 |
|---|---|---|---|
| 201720504992.0 | May 2017 | CN | national |
| 201720525802.3 | May 2017 | CN | national |
