BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be apparent to those skilled in the art by reading the following description of a preferred embodiment thereof, with reference to the attached drawings, in which:
FIG. 1 is a perspective view of a terminal of the present invention;
FIG. 2 is a perspective view of another terminal of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The terminal according to preferred embodiments of the present invention is illustrated in FIG. 1 and FIG. 2 and provides the functional arrangement and formation to increase the impedance Z.
Referring to FIG. 1, a terminal 1 includes a base part 11. The base part 11 extends backwards to form a connecting part 12, and extends forwards to form a contact part 13. A top surface of the base part 11, the connecting part 12 and the contact part 13 are in the same plane. A bottom surface of the base part 11 extends downwardly to make the base part 11 forming a rectangular planar shape. A tip of the contact part 13 forms a contact probe 132 that has an arc surface. A connecting arm 131 connects with the base part 11. A pair of pass holes 111 is defined in a left side and a right side of the base part 11 respectively. A region in the base part 11 further protrudes upwards to form a lump 112 as a press part and extends downwards to form an insertion part 113.
Referring to FIG. 2, a terminal 2 includes a base part 21. The base part 21 extends backwards to form a connecting part 22, and extends forwards to form a contact part 23. The top surface of the base part 11, the connecting part 22 and the contact part 23 are in the same plane. The bottom surface of the base part 21 extends downwardly to make the base part 21 forming a rectangular planar shape. The contact part 23 includes a contact probe 232 and a connecting arm 231. The contact probe 232 is a triangle. The connecting arm 231 connects with the base part 21. It has an altitudinal difference between the connecting arm 231 and the base part 21. A first nick 211 is defined on the upside of the base part 21. A second nick 212 is defined on the underside of the base part 21. A region in the base part 21 further protrudes upwards to form a lump 213 as a press part and extends downwards to form an insertion part 214.
According to formula
Z=(L/C)1/2
C=εS/4πκd
Wherein
- Z: impedance
- L: inductance
- C: capacitance
- S: square
- d: distance
When plural terminals are assembled in a connector (not shown), the low value of the Z (denotes the impedance) generated between the plural terminals will result in the low electrical conducting performance. So it is necessary to lower the C (denotes the capacitance) to increase the Z. According to the above formula, a means to lower the C is that reduce the S (denotes the square) of the base part 11.
The foregoing description of the present invention has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. Such modifications and variations that may be apparent to those skilled in the art are intended to be included within the scope of this invention as defined by the accompanying claims.
Patent Application
20080096443
