Provided are a receptacle connector, an electronic device, and an
assembly method. The receptacle connector is applied to an electronic device such as a
mobile phone or a
tablet computer. In an embodiment of this application, an auxiliary member of the receptacle connector can support an end portion of a terminal board away from a first connecting part, so that a second connecting part that is heavier of the terminal board can be prevented from rotating downwards to some extent, thereby preventing a weld leg for
welding between the first connecting part and a circuit board from tilting up, avoiding insufficient
welding between the first connecting part and the circuit board, and improving the
welding quality of the terminal board and the circuit board. Moreover, in this application, the auxiliary member and the terminal board are detachably connected. After the terminal board and the circuit board are welded and fixed, the auxiliary member can be dismounted from the terminal board and then assembled with a housing, so that the receptacle connector occupies a small space, thereby facilitating the flexible arrangement of other components in the electronic device. In addition, the receptacle connector in this application has a small thickness, thereby meeting the requirement of lightweight and
thinning design for the electronic device.