Card connection assembly and electronic card installation structure thereof

The utility model relates to a card connecting assembly and an electronic card mounting structure thereof. The card connecting assembly is arranged on a circuit board and comprises a card connector and an electronic card mounting structure. The electronic card mounting structure comprises a first guide rail, a second guide rail and a locking structure. The first guide rail and the second guide rail are used for guiding the electronic card to be inserted into the card connector. The locking structure and the first guide rail are integrally formed and elastically connected. The locking structure is provided with an operation part and a buckling part connected to the operation part. When the electronic card is inserted into the card connector, the buckling part extends into the side notch of the electronic card, so that the electronic card is limited to exit from the card connector; the operation part elastically displaces towards the direction far away from the first guide rail, so that the buckling part can be