US 12,295,114 B2
Expansion card fixing structure and electronic device using the same
Jia-Feng Lin, New Taipei (TW)
Assigned to Fulian Precision Electronics (Tianjin) Co., LTD., Tianjin (CN)
Filed by Fulian Precision Electronics (Tianjin) Co., LTD., Tianjin (CN)
Filed on Mar. 30, 2023, as Appl. No. 18/129,010.
Claims priority of application No. 202211339694.2 (CN), filed on Oct. 28, 2022.
Prior Publication US 2024/0147647 A1, May 2, 2024
Int. Cl. H05K 7/14 (2006.01)
CPC H05K 7/1417 (2013.01) [H05K 7/1489 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An expansion card fixing structure comprising:
at least one guiding track comprising a track base, wherein a track slot is defined on the track base, the track slot extends in a first direction, and a side of the track base is recessed in a second direction to form the track slot;
a limiting element comprising a first end and a second end, the first end and the second end being arranged at intervals in a third direction, wherein the first end is inserted into the track slot in the third direction, an avoidance hole is defined on the second end in the second direction, the avoidance hole extends in the third direction;
a handle comprising a first surface and a second surface, wherein the handle is connected to the second end by a latch, the latch is partially received in the avoidance hole, the handle is rotatable around an axis of the latch, and one of the first surface and the second surface is in contact with the track base, a distance from the first surface to the latch is less than a distance from the second surface to the latch;
a resilient member connected to the first end and the track base, the resilient member being configured for driving the first end into the track slot; and
an expansion plate comprising at least one guide portion, wherein a first opening is defined on the at least one guide portion, the guide portion is moveably inserted in the track slot, the first opening is located in the track slot, and the expansion plate is lockable by inserting the first end into the first opening.
 
10. An electronic device comprising a main board, a connection port and an expansion card fixing structure, the expansion card fixing structure comprising:
at least one guiding track comprising a track base, wherein a track slot is defined on the track base, the track slot extends in a first direction, and a side of the track base is recessed in a second direction to form the track slot;
a limiting element comprising a first end and a second end, the first end and the second end being arranged at intervals in a third direction, wherein the first end is inserted into the track slot in the third direction, an avoidance hole is defined on the second end in the second direction, the avoidance hole extends in the third direction;
a handle comprising a first surface and a second surface, wherein the handle is connected to the second end by a latch, the latch is partially received in the avoidance hole, the handle is rotatable around an axis of the latch, and one of the first surface and the second surface is in contact with the track base, a distance from the first surface to the latch is less than a distance from the second surface to the latch;
a resilient member connected to the first end and the track base, the resilient member being configured for driving the first end into the track slot;
an expansion plate comprising at least one guide portion, wherein a first opening is defined on the at least one guide portion, the guide portion is moveably inserted in the track slot, the first opening is located in the track slot, and the expansion plate is lockable by inserting the first end into the first opening; and
the expansion card fixing structure being connected to the main board through the connection port.