Method of fixing flexible printed circuit and mobile terminal

1. A mobile terminal, comprising:

a rear cover;

a first flexible printed circuit (FPC), fixedly connected to the rear cover;

a front housing, provided with a battery accommodation compartment, wherein in case that a battery is installed in the battery accommodation compartment, the battery is spaced apart from the first FPC;

wherein the mobile terminal further comprises: a second FPC, wherein

the first FPC is provided with a first connection portion and a second connection portion, the first connection portion is configured to be electrically connected to a charging cable, the second connection portion is electrically connected to a motherboard of the mobile terminal;

the second FPC is provided with a third connection portion and a fourth connection portion, the third connection portion is electrically connected to the motherboard, and the fourth connection portion is configured to be electrically connected to the battery.

2. The mobile terminal according to claim 1 , wherein the rear cover is made of a metal material.

3. The mobile terminal according to claim 2 , wherein

the first FPC is provided with a grounded gold surface, and the grounded gold surface and the rear cover are fixedly connected by an electrically conductive and thermally conductive material; or,

the first FPC is provided with a grounded gold surface, and the grounded gold surface and the rear cover are welded by means of an ultrasonic metal welding.

4. The mobile terminal according to claim 1 ,

wherein the first connection portion and the charging cable are electrically connected by a metal elastic piece and an elastic-piece-contact goldfinger that fit with each other; wherein one of the metal elastic piece and the elastic-piece-contact goldfinger is arranged on the first connection portion, and the other is arranged on the charging cable.

5. The mobile terminal according to claim 1 , wherein the first FPC is provided with an interference avoidance structure configured to avoid interference with the motherboard.

6. The mobile terminal according to claim 5 , wherein the interference avoidance structure is arranged at four corners of the first FPC.

7. A method of fixing a flexible printed circuit (FPC), applied to a mobile terminal comprising a first FPC and a second FPC, comprising:

obtaining the first FPC;

fixedly connecting the first FPC to a rear cover of the mobile terminal; wherein a front housing of the mobile terminal is provided with a battery accommodation compartment; in case that a battery is installed in the battery accommodation compartment, the battery is spaced apart from the first FPC;

wherein the first FPC is provided with a first connection portion and a second connection portion, the first connection portion is configured to be electrically connected to a charging cable, the second connection portion is electrically connected to a motherboard of the mobile terminal;

the second FPC is provided with a third connection portion and a fourth connection portion, the third connection portion is electrically connected to the motherboard, and the fourth connection portion is configured to be electrically connected to the battery.

8. The method according to claim 7 , wherein the rear cover is made of a metal material.

9. The method according to claim 8 , wherein the first FPC is provided with a grounded gold surface, and the fixedly connecting the first FPC to the rear cover of the mobile terminal comprises:

fixedly connecting the grounded gold surface to the rear cover of the mobile terminal with an electrically conductive and thermally conductive material; or,

fixedly connecting the grounded gold surface to the rear cover of the mobile terminal by means of an ultrasonic metal welding.