The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2018
Filed:
Apr. 25, 2014
Sim card connectorfor preventing sim card burnout by detecting insertion and removal of the sim card
Huawei Device (Dongguan) Co., Ltd., Dongguan, CN;
Xiaolong Wang, Shanghai, CN;
Wei Lv, Shenzhen, CN;
Haifeng Zhu, Shenzhen, CN;
Weibin Lai, Shenzhen, CN;
Huaya He, Shenzhen, CN;
Huawei Device (Dongguan) Co., Ltd., Dongguan, CN;
Abstract
A SIM card connector includes a base, signal spring, a detection apparatus, and a controller. The detection apparatus is configured to cooperate with one side of a SIM card, and includes a fixed contact and a detection spring, where an action of the SIM card can be detected by separation or union between the fixed contact and the detection spring. The controller can disconnect a power supply of the signal spring before the SIM card is separated from the signal spring, and can switch on the power supply of the signal spring after the SIM card presses against the signal spring, which effectively prevents the SIM card from being burned out by a momentary electric arc generated between the SIM card and the signal spring when the SIM card is being inserted or removed.