An electric energy control module, comprising: a first interface, wherein the first interface is a detachably connected interface; the first interface is connected to an input end of a charging unit by using a first switch (K1,Q1); an output end of the charging unit is connected to an input end of a power source unit; an output end of the power source unit is connected to the first interface by using a second switch (K2, Q2); and an input end of a detection control unit is connected to the first interface, a first output end of the detection control unit is connected to a control end of the first switch and a second output end of the detection control unit is connected to a control end of the second switch; the first interface is configured to: connect to an electric energy supply end of an electric energy supply device when the power source unit is charged; and when power is supplied to an external device, connect to an electric energy input end of a power supply unit that supplies power to the external device, wherein the power supply unit is located outside the electric energy control module; the charging unit is configured to, when the first switch is closed, the second switch is open, receive electric energy supplied by the electric energy supply device, so as to charge the power source unit; the power source unit is configured to: store the electric energy when the first switch is closed; and output the electric energy when the second switch is closed; and the detection control unit is configured to detect a connection status of the first interface, and control switch statuses of the first switch and the second switch according to the connection status of the first interface; characterized in that the first interface is a USB interface; and the detection control unit is specifically configured to: detect a level of an ID pin of the first interface; control the first switch to be closed and the second switch to be opened when the level of the ID pin is a high level such that when the level of the ID pin is a high level, it indicates that the power source unit is charged; and control the first switch to be opened and the second switch to be closed when the level of the ID pin is a low level such that when the level of the ID pin is a low level, it indicates that the power source unit supplies power to the external device. a first interface, wherein the first interface is a detachably connected interface; the first interface is connected to an input end of a charging unit by using a first switch (K1,Q1); an output end of the charging unit is connected to an input end of a power source unit; an output end of the power source unit is connected to the first interface by using a second switch (K2, Q2); and an input end of a detection control unit is connected to the first interface, a first output end of the detection control unit is connected to a control end of the first switch and a second output end of the detection control unit is connected to a control end of the second switch; the first interface is configured to: connect to an electric energy supply end of an electric energy supply device when the power source unit is charged; and when power is supplied to an external device, connect to an electric energy input end of a power supply unit that supplies power to the external device, wherein the power supply unit is located outside the electric energy control module; the charging unit is configured to, when the first switch is closed, the second switch is open, receive electric energy supplied by the electric energy supply device, so as to charge the power source unit; the power source unit is configured to: store the electric energy when the first switch is closed; and output the electric energy when the second switch is closed; and the detection control unit is configured to detect a connection status of the first interface, and control switch statuses of the first switch and the second switch according to the connection status of the first interface; characterized in that the first interface is a USB interface; and the detection control unit is specifically configured to: detect a level of an ID pin of the first interface; control the first switch to be closed and the second switch to be opened when the level of the ID pin is a high level such that when the level of the ID pin is a high level, it indicates that the power source unit is charged; and control the first switch to be opened and the second switch to be closed when the level of the ID pin is a low level such that when the level of the ID pin is a low level, it indicates that the power source unit supplies power to the external device.