A chip card fixing assembly is received inside a charging interface of an electronic device for fixing a chip card inside the charging interface. The chip card fixing assembly includes a resisting assembly including at least one pushing member and a securing member including at least one fixing portion. The at least one fixing portion and the at least one pushing member cooperatively define a securing space therebetween for fixing the chip card.

A stem ejectable component assembly for electronic devices does not use a pin or needle to eject the tray holder. The assembly includes a receiving housing coupled to a SIM/MMC tray, a front plate, and a stem. The front plate incorporates slider pins that slide out to engage with recesses in the support frame of the electronic device to lock the assembly. The slider pins have inner ends that abut the stem and hold the stem in a pushed-in position. The slider pins also incorporate profiled protrusions that engage with ball pins fixed to the receiving housing. When the front plate is pushed inward, the profiled protrusions cause the slider pins to move outwards and release the stem to project out of the front plate. Pulling the stem causes the slider pins to slide in and disengage from the recesses in the support frame to enable withdrawal of the assembly.

A card reader may include a card insertion port; a card conveying passage; and a card lock mechanism structured to prevent drawing of the card from the card insertion port. The card lock mechanism may include a motor; a lock member comprising a prevention pawl structured to move between a contact position and a retreated position; and a power transmission mechanism structured to transmit power of the motor to the lock member. The power transmission mechanism may include a final gear which is disposed on a most lock member side in a transmitting direction of power from the motor to the lock member. The lock member may include a sector gear which is engaged with the final gear.

A rotary tray holder includes a tray holder comprising a side A and a side B, each side comprising at least one window to hold a SIM card; and a handle grabber that allows rotation of the tray holder to enable insertion of the tray holder in an electronic device with any of the side A and the side B of the tray holder, thereby enabling the SIM card located on the side oriented in the desired direction to be active, and making the SIM card located on the other side to take a standby position. The tray holder may include two partly overlapping windows oriented at an angle to each other. One of the overlapping windows holds the SIM card with contacts providing a standby position for the SIM card that may be repositioned in the other of the two overlapping windows to make the SIM card active.

The invention discloses a TF card connector which is capable of installing a Nano-SIM card and a mobile phone thereof. The TF card connector is improved by arranging a Nano-SIM card connector in the TF card connector so that the functions are increased for the TF card connector. The mobile phone have the function of installing an SIM card by arranging the TF card connector capable of installing the Nano-SIM card in the mobile phone to increase the novel functions for the mobile phone such that the Nano-SIM card is used simply and conveniently after the Nano-SIM card is installed.

The invention discloses a TF card connector which is capable of installing a Nano-SIM card and a mobile phone thereof. The TF card connector is improved by arranging a Nano-SIM card connector in the TF card connector so that the functions are increased for the TF card connector. The mobile phone have the function of installing an SIM card by arranging the TF card connector capable of installing the Nano-SIM card in the mobile phone to increase the novel functions for the mobile phone such that the Nano-SIM card is used simply and conveniently after the Nano-SIM card is installed.