Lamp module group

1. A lamp module group comprising:

a housing defining a first housing end and a second housing end, the housing defining a first protruding column at the first housing end, the housing defining a cavity with a housing opening to the cavity defined at the second housing end and a column opening to the cavity defined by the first protruding column;

an LED lamp board positioned within the cavity, the LED lamp board configured to emit light through the housing opening;

a power supply driving module positioned within the cavity between the LED lamp board and the first protruding column, the power supply driving module connected in electrical communication with the LED lamp board; and

a concentric terminal extending through the column opening, the concentric terminal connected in electrical communication with the power supply driving module, the concentric terminal configured to connect in electrical communication with a complimentary concentric terminal to supply power to the power supply driving module.

2. The lamp module group of claim 1 , wherein the concentric terminal is a concentric male terminal, and wherein the complimentary concentric terminal is a concentric female terminal.

3. The lamp module group of claim 2 , wherein the concentric male terminal comprises:

an outer conductive pipe connected in electrical communication with the power supply driving module by a first wire;

an inner conductive pipe positioned within the outer conductive pipe, the inner conductive pipe connected in electrical communication with the power supply driving module by a second wire; and

an insulating column positioned between the inner conductive pipe and the outer conductive pipe.

4. The lamp module group of claim 2 , wherein the concentric female terminal comprises:

a conductive ring connected to a first wire; and

a conductive post connected to a second wire, the conductive post positioned within and spaced apart from the conductive ring.

5. The lamp module group of claim 1 , wherein the first protruding column defines an external thread.

6. The lamp module group of claim 1 , wherein a portion of the cavity positioned between the LED lamp board and the first housing end is filled with a sealing layer.

7. The lamp module group of claim 1 , further comprising a lens positioned over a light emitting part of the LED lamp board.

8. The lamp module group of claim 7 , further comprising a reflecting cup and a sealing layer extending around the lens and the light emitting part, the sealing layer forming a seal between the reflecting cup, the lens, and the LED lamp board.

9. The lamp module group of claim 1 , wherein the housing defines threading at the second housing end.

10. The lamp module group of claim 9 , further comprising a mask, a piece of glass, and a gasket, the mask threadedly engaged with the second housing end, the mask engaging the piece of glass and compressing the gasket between the piece of glass and the housing to seal the housing opening.

11. A method of using a lamp module group, the method comprising:

obtaining a lamp module group comprising:

a first housing defining a cavity and a first protruding column, the first protruding column defining threading and a column opening to the cavity;

an LED lamp board positioned within the cavity; and

a first concentric terminal connected in electrical communication with the LED lamp board, the first concentric terminal extending through the column opening; and

threadedly engaging a second housing with the threading of the first protruding column to connect the first concentric terminal in electrical communication with a second concentric terminal, the second concentric terminal being secured within the second housing; and

wherein threadedly engaging the second housing with the threading of the first protruding column to connect the first concentric terminal in electrical communication with the second concentric terminal comprises:

inserting an outer conductive pipe and an inner conductive pipe of the first concentric terminal between a conductive ring and a conductive post of the second concentric terminal to form a first electrical connection between the outer conductive pipe and the conductive ring; and

inserting the conductive post into the inner conductive pipe to form a second electrical connection between the conductive post and the inner conductive pipe.

12. The method of claim 11 , wherein the inner conductive pipe is positioned within the outer conductive pipe, and wherein the first concentric terminal further comprises an insulating column positioned between the inner conductive pipe and the outer conductive pipe.

13. The method of claim 11 , wherein the conductive post is positioned within and spaced apart from the conductive ring.

14. The method of claim 11 , wherein the second concentric terminal further comprises a conductive spring coupled in electrical communication with the conductive ring, and wherein the conductive spring presses against the outer conductive pipe when the outer conductive pipe is inserted between the conductive ring and the conductive post.

15. The method of claim 11 , further comprising:

supplying power from the second concentric terminal to the LED lamp board through the first concentric terminal; and

emitting light from the LED lamp board.

16. The method of claim 15 , wherein supplying power from the second concentric terminal to the LED lamp board through the first concentric terminal comprises:

supply power from the first concentric terminal to a power supply driving module of the lamp module group, the first concentric terminal being connected in electrical communication with the power supply driving module; and

supplying power from the power supply driving module to the LED lamp board, the power supply driving module being connected in electrical communication with the LED lamp board.