Antenna device of mobile communication terminal

Abstract

The invention relates to mobile communication terminal in particular to an antenna device. Contact pins are provided in this device which contact with the contact terminals provided on the print circuit board more closely. At the time of the contact terminals being covered by foreign matter and the contact impedance being higher, the contacts can penetrate the foreign matter layer which covers the contact terminals keeping in contact with the contact terminals. Furthermore, when the mobile communication terminal falls and is shookor impacted as external factors making the position of contact pins changed, the electrical contact performance and contact stability can be improved by continuous contact force of the contact and the contact terminals. Thus, receiving and transmitting reliability of the communication signals for the mobile communication terminal can be ensured. The antenna device of the mobile communication terminal provided has features of comprising the following parts: an antenna case for conducting an outlay antenna; a contact pin with one end engaged with one side of the antenna case and the other end conducting and elastically contacting the contact terminals on the print circuit board.

Description

technical field [0001] The present invention relates to a mobile communication terminal (Mobile communication terminal), in particular to an antenna device. By providing contact pins that are in closer contact with contact terminals on a printed circuit board, when the contact terminals are covered by foreign matter, the contact When the impedance becomes larger, the above-mentioned contact point can penetrate the foreign matter layer covered on the above-mentioned contact terminal, and keep in contact with the above-mentioned contact terminal all the time. Moreover, when the position of the above-mentioned contact needle is displaced due to vibration or impact due to the fall of the mobile communication terminal and other external factors, under the continuous contact force between the above-mentioned contact point and the above-mentioned contact terminal, its electrical contact performance and contact stability. Therefore, the reliability of the communication signal recepti...

AI Technical Summary

Problems solved by technology

However, the above-mentioned protrusion 614 is also formed on the above-mentioned contact point 613 with a larger area, so the above-mentioned problem cannot be solved.

Moreover, under the vibration or external force generated by the fall of the mobile communication terminal 100, once the position of the above-mentioned contact point 613 or protrusion 614 in conductive contact with the above-mentioned contact terminal 420 moves, because the above-mentioned contact pin 610 elastically contacts with the above-mentioned contact terminal 420, Under the action of its own elastic force, the above-mentioned contact pin 610 cannot be in firm contact with the above-mentioned contact terminal 420, and a phenomenon of sliding relative to the above-mentioned contact terminal 420 occurs, and the above-mentioned contact point 613 or protrusion 614 cannot be in normal contact with the above-mentioned contact terminal 420.

[0015] In addition, if the above-mentioned sliding phenomenon is serious, and the above-mentioned contact pin 610 is detached from the above-mentioned contact terminal 420, and the phenomenon of conductive disconnection with the above-mentioned contact terminal 420 occurs, then the above-mentioned printed circuit board 400 and the external antenna 500 are not in conductive contact with each other, resulting in Decreased wireless communication function

[0016] Due to the above problems, in the manufacturing process of the mobile communication terminal 100, there is a problem that the defective rate increases due to poor contact of the mobile communication terminal 100.

After the production of the mobile communication terminal 100 is completed, the contact pin 610 will be deformed and have poor contact during the user's use due to the drop of the mobile communication terminal 100 and other external shocks.

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