Lighting device, and illuminating device including the lighting device

1. A lighting device, comprising:

a housing,

at least one light source, and

a circuit board carrying the at least one light source,

wherein the housing defines a cavity for accommodating the at least one light source and the circuit board, wherein the housing comprises a bottom for carrying the circuit board, wherein the lighting device further comprises at least one separate mountable locking member, which is partially supported on the housing and presses the circuit board on the bottom,

wherein side wall extending from at least one part of the bottom, wherein the side wall supports the locking member,

wherein the bottom comprises a first section and a second section, the second section protrudes upward in relation to the first section, and the second section comprises a top surface supporting the circuit board and a side surface supporting the locking member,

wherein the locking member is an elastic clamping member, which clamp the circuit board and the second section,

wherein the locking member comprises a first end pressing the circuit board and a second end pressing the second section, and an intermediate portion between the first end and the second end, and the side wall supports intermediate portions,

wherein the second section has a T-shaped cross section perpendicular to the bottom and comprises a first part and a second part in the sequence from top to bottom, wherein the second end press the first part.

2. A lighting device according to claim 1 , wherein the second section and the side wall define a side gap in which the locking member is accommodated.

3. A lighting device according to claim 1 , wherein there are two locking members which clamp two longitudinal edges of the circuit board on the bottom, respectively.

4. A lighting device according to claim 1 , wherein the locking member further comprises the outer side surface facing to the side wall, wherein the outer side surface comprises a first outer side surface section against the side wall form-fit at the side of the first end, and a second outer side surface section extended obliquely in relation to the first section.

5. A lighting device according to claim 1 , wherein the side surface is an oblique plane in relation to the first section.

6. A lighting device according to claim 1 , wherein the side surface has a step surface.

7. A lighting device according to claim 1 , wherein the housing is a heat sink.

8. A lighting device comprising:

a housing,

at least one light source, and

a circuit board carrying the at least one light source,

wherein the housing defines a cavity for accommodating the at least one light source and the circuit board, wherein the housing comprises a bottom for carrying the circuit board, wherein the lighting device further comprises at least one separate mountable locking member, which is partially supported on the housing and presses the circuit board on the bottom,

wherein side wall extending from at least one part of the bottom, wherein the side wall supports the locking member,

wherein the bottom comprises a first section and a second section, the second section protrudes upward in relation to the first section, and the second section comprises a top surface supporting the circuit board and a side surface supporting the locking member,

wherein the locking member is an elastic clamping member, which clamp the circuit board and the second section,

wherein the locking member comprises a first end pressing the circuit board and a second end pressing the second section, and an intermediate portion between the first end and the second end, and the side wall supports intermediate portions,

wherein the locking member further comprises a structure to lock with the circuit board, which comprises at least one protruding part extended from the first end and at least one groove arranged on the circuit board.

9. An illuminating device, comprising a cover, and a lighting device,

the lighting device comprising:

a housing,

at least one light source, and

a circuit board carrying the at least one light source,

wherein the housing defines a cavity for accommodating the at least one light source and the circuit board, wherein the housing comprises a bottom for carrying the circuit board, wherein the lighting device further comprises at least one separate mountable locking member, which is partially supported on the housing and presses the circuit board on the bottom,

wherein the cover and lighting device define the enclosed space that accommodates at least one light source and the circuit board carrying the at least one light source,

wherein side wall extending from at least one part of the bottom, wherein the side wall supports the locking member,

wherein the bottom comprises a first section and a second section, the second section protrudes upward in relation to the first section, and the second section comprises a top surface supporting the circuit board and a side surface supporting the locking member,

wherein the locking member is an elastic clamping member, which clamp the circuit board and the second section,

wherein the locking member comprises a first end pressing the circuit board and a second end pressing the second section, and an intermediate portion between the first end and the second end, and the side wall supports intermediate portions,

wherein the second section has a T-shaped cross section perpendicular to the bottom and comprises a first part and a second part in the sequence from top to bottom, wherein the second end press the first part.

10. An illuminating device according to claim 9 , wherein the illuminating device has a tubular contour.

11. A illuminating device according to claim 9 , wherein the bottom comprises a first section and a second section, the second section protrudes upward in relation to the first section, and the second section comprises a top surface supporting the circuit board and a side surface supporting the locking member.

12. A illuminating device according to claim 9 , wherein the housing is a heat sink.