ECG button assembly and electronic device

An electronic device, comprising a housing and the ECG an electrocardiogram (ECG) button assembly, wherein:

• the ECG button assembly is disposed on the housing, and the ECG button assembly comprises a button part, a plastic tube, a metal tube, an elastic piece, and a conductive sheet;
• the housing is provided with a via hole, and the plastic tube is embedded in the via hole;
• a first through hole is provided at an interior of the plastic tube, the metal tube is embedded in the first through hole, a part of the metal tube is located at an exterior of the housing, the conductive sheet is connected to one end that is of the metal tube and that is located at an interior of the housing, and the conductive sheet is in contact with and electrically connected to a circuit board of the electronic device;
• the button part comprises a button cap and a button shaft, a second through hole is provided at an interior of the metal tube, the button shaft penetrates through the second through hole, a first end of the button shaft is located at the exterior of the housing, and the button cap is connected to the first end of the button shaft;
• and
• the elastic piece is sleeved on the button shaft, one end of the elastic piece is connected to the button cap, the other end of the elastic piece is connected to the metal tube, and the button part is configured to move in an axial direction of the button shaft relative to the housing.