Vehicle-mounted charger
A vehicle-mounted charger includes a housing, a printed circuit board (PCB) disposed in the housing, and a universal serial bus (USB) female socket, a TYPE-C female socket, and a direct current (DC) female socket disposed on the PCB. The housing includes an upper shell and a bottom shell. The upper shell is provided with an upper port and a lower port. The bottom shell is detachably connected to the lower port of the upper shell. A cover plate is disposed at the upper port of the upper shell. Jack structures, which are in one-to-one correspondence with the respective female socket interfaces and respectively adapted to the shapes thereof, are disposed on the cover plate.
1 . A vehicle-mounted charger, comprising a housing, a printed circuit board (PCB) disposed in the housing, and a universal serial bus (USB) female socket, a TYPE-C female socket, and a direct current (DC) female socket disposed on the PCB,
wherein the housing comprises an upper shell and a bottom shell, the upper shell is provided with an upper port and a lower port, the bottom shell is detachably connected to the lower port of the upper shell, a cover plate is disposed at the upper port of the upper shell, and jack structures, which are in one-to-one correspondence with the respective female socket interfaces and respectively adapted to the shapes thereof are disposed on the cover plate;
wherein a plurality of light emitting diode (LED) lamp beads are arranged in the handheld portion along a circumferential direction, lamp holes in one-to-one correspondence with the LED lamp beads are formed in the handheld portion, and the LED lamp beads are all electrically connected to the PCB.
2 . The vehicle-mounted charger according to claim 1 , wherein an internal thread structure is disposed on the lower port of the upper shell, an external thread structure is disposed on the upper port of the bottom shell, and the bottom shell and the upper shell are connected through the thread structures.
3 . The vehicle-mounted charger according to claim 1 , wherein the upper shell comprises a plug-in portion and a handheld portion, the handheld portion is located at an upper end of the plug-in portion, cross sections of the plug-in portion and the handheld portion are all circular and the plug-in portion and the handheld portion share a common central axis, an outer diameter of the handheld portion is greater than an outer diameter of the plug-in portion, and the plug-in portion is configured to be inserted into a cigarette lighter socket of a vehicle.
4 . The vehicle-mounted charger according to claim 3 , wherein two oppositely formed negative electrode through holes are formed in the plug-in portion, two elastic negative electrodes are disposed on the housing, and the two elastic negative electrodes pass through the two negative electrode through holes, respectively; and a positive electrode is disposed at a lower end of the bottom shell, and the elastic negative electrodes and the positive electrode are all electrically connected to the PCB.
5 . The vehicle-mounted charger according to claim 4 , wherein a positive electrode connecting wire and a positive electrode spring are further disposed on the housing, a length direction of the positive electrode spring is along a vertical direction of the housing, an upper end of the positive electrode connecting wire is connected to the PCB and a lower end thereof is connected to a lower end of the positive electrode spring, and the positive electrode spring presses the lower end of the positive electrode connecting wire against an inner wall of the positive electrode.
6 . The vehicle-mounted charger according to claim 1 , wherein a control switch is disposed on the PCB, the control switch is configured to control turn-on and turnoff of the LED lamp beads, a switch hole is formed in the cover plate at a position corresponding to the control switch, and an upper end of the control switch passes through the switch hole.
7 . The vehicle-mounted charger according to claim 6 , wherein a storage battery is disposed in the housing, the storage battery is electrically connected to the PCB, and the storage battery is capable of supplying power to the LED lamp beads.
8 . The vehicle-mounted charger according to claim 1 , wherein a display screen is further disposed on the PCB, and a display window is disposed at a position of the cover plate corresponding to the display screen or the entire cover plate is made of a light-transmitting material.
9 . The vehicle-mounted charger according to claim 3 , wherein the cover plate is disc-shaped, a plurality of elastic walls are arranged along a circumferential direction of the cover plate at an outer end of the cover plate, a snap-fit protrusion is disposed on each of the elastic walls, a snap-fit structure adapted to the snap-fit protrusion is disposed on an inner wall of the handheld portion, and the cover plate is snap-fitted into the upper port of the handheld portion.