The socket hole in the wall is too loose, and the charging plug always falls off when touched.

The socket hole is too big to fit tightly with the charging plug.

Solution:

1. Break the two pins of the charging plug slightly so that it can just be stuck in the socket hole.

2. Replace a better socket. Just insert it a little harder.

3. Generally, the problem can be solved by disconnecting the power supply of the patch panel, opening the shell, and trimming the shape and angle of the shrapnel with needle-nosed pliers.

4, long-term overload use, too much heat, resulting in a decline in the elasticity of the reed.

5. The plugs and sockets are not matched, and there are too many plugging and unplugging times, especially hot plugging.

6. Long service life-Everything has a certain service life.

Extended data:

The resistance between conductors is called contact resistance. Contact resistance is generally required to be below 10-20mohm. Some switches require less than 100-500 UOHM. Some circuits are sensitive to changes in contact resistance. It should be noted that the contact resistance of the switch is the maximum allowable contact resistance of the switch at several contacts.

On the circuit board, it refers to the contact point between the gold finger and the connector. In order to reduce the formation of oxide on the metal surface, metal is usually plated on the positive finger and negative clip of the connector to prevent the occurrence of "load resistance". There are also contact resistances between plugs of other electrical appliances or between wires and sockets.