Installation assembly of ceiling lighting fixture, ceiling lighting fixture and ceiling lamp

1. An installation assembly of a ceiling lighting fixture, the installation assembly comprising:

a fixing base and a connecting base detachably connected with the fixing base;

wherein one of the fixing base and the connecting base is provided with a snap recess, and a remaining one of the fixing base and the connecting base is provided with an elastic buckle capable of being snap-fitted with the snap recess;

wherein the elastic buckle has a guide slope, the elastic buckle is capable of being compressed as the connecting base moves toward the fixing base, and being introduced into the snap recess through the guide slope; and

wherein the elastic buckle is rotationally fitted with the snap recess, and the snap recess is provided with an avoidance notch for the elastic buckle to be detached.

2. The installation assembly according to claim 1 , wherein the elastic buckle comprises a buckle body and a first elastic member;

wherein the first elastic member comprises one end provided on the fixing base or the connecting base and another end connected with the buckle body; and

wherein the buckle body comprises the guide slope.

3. The installation assembly according to claim 2 , wherein:

the fixing base or the connecting base is provided with a first slide hole;

the first elastic member is provided in the first slide hole;

the buckle body is slidably provided in the first slide hole; and

an end of the buckle body which is provided with the guide slope is capable of extending out from the first slide hole.

4. The installation assembly according to claim 1 , wherein:

the fixing base is provided with the elastic buckle;

the connecting base has a cover-like structure; and

the snap recess is provided on an inner wall of the connecting base.

5. The installation assembly according to claim 4 , wherein:

the fixing base comprises a foundation connection portion and a connecting base connection portion which are integrally formed;

the elastic buckle is provided on a side wall of the connecting base connection portion; and

an edge of the foundation connection portion protrudes out from an edge of the connecting base connection portion; and the edge of the foundation connection portion is provided with a connection hole which is capable of being fixedly connected with a mounting foundation.

6. The installation assembly according to claim 5 , further comprising: a plurality of strip-shaped holes, wherein

wherein the foundation connection portion is a circular plate member; and

wherein the plurality of strip-shaped holes extend along a radial direction of the foundation connection portion, or the plurality of strip-shaped holes are evenly distributed along a circumferential direction of the edge of the foundation connection portion.

7. The installation assembly according to claim 1 , wherein:

a first electrical connection portion is provided on a side of the fixing base which faces the connecting base;

a second electrical connection portion is provided on a side of the connecting base which faces the fixing base;

the first electrical connection portion is electrically connected with the second electrical connection portion;

the connecting base comprises a lamp body mounting portion;

a side of the lamp body mounting portion which faces away from the fixing base comprises an electrical connection port; and

the electrical connection port is electrically connected with the second electrical connection portion.

8. The installation assembly according to claim 7 , wherein:

the connecting base comprises the lamp body mounting portion and a side wall vertically extending along an outer periphery of the lamp body mounting portion;

an edge of the side wall protrudes inwardly to form a flange; and

a recess formed by the flange and the side wall is the snap recess.

9. The installation assembly according to claim 8 , wherein:

the lamp body mounting portion is a plate-like lamp body mounting portion;

the plate-like lamp body mounting portion comprises a plate-like base body and the electrical connection port provided on an outer surface of the plate-like base body; and

the second electrical connection portion is provided on an inner surface of the plate-like base body.

10. The installation assembly according to claim 8 , wherein the side wall is an annular side wall adapted to a corresponding side face of the fixing base, and the annular side wall covers the corresponding side face of the fixing base.

11. The installation assembly according to claim 8 , wherein:

the side wall is an annular side wall;

the side wall comprises at least two combining portions;

the at least two combining portions are separately distributed in a circumferential direction of an inner surface of the side wall;

at least one combining portion has a guide slope connected with the inner surface of the side wall at each side edge of the at least one combining portion and a main body portion located between two guide slopes; and

the main body portion protrudes out from the inner surface of the side wall, and is provided with the avoidance notch.

12. The installation assembly according to claim 7 , wherein the first electrical connection portion is plug-fitted with the second electrical connection portion; one of the first electrical connection portion and the second electrical connection portion is provided with a plug protrusion, and another one of the first electrical connection portion and the second electrical connection portion is provided with a plug recess; and the plug protrusion is plug-fitted with the plug recess.

13. The installation assembly according to claim 12 , wherein:

one of the first electrical connection portion and the second electrical connection portion comprises at least two concentrically arranged annular electrical connection grooves, and another one of the first electrical connection portion and the second electrical connection portion comprises at least two concentrically arranged annular conductive terminals;

the at least two annular conductive terminals and the at least two annular electrical connection grooves are in one-to-one correspondence and plug-fitted with each other; and

the at least two annular conductive terminals are electrically connected with conductive terminals in the at least two annular electrical connection grooves in one-to-one correspondence.

14. The installation assembly according to claim 13 , wherein the second electrical connection portion comprises a first annular conductive terminal, a second annular conductive terminal, and a third annular conductive terminal arranged concentrically and sequentially distributed from inside to outside;

the first electrical connection portion comprises a first annular electrical connection groove, a second annular electrical connection groove, and a third annular electrical connection groove arranged concentrically and sequentially distributed from inside to outside; and

the first annular conductive terminal, the second annular conductive terminal, and the third annular conductive terminal are respectively accommodated in the first annular electrical connection groove, the second annular electrical connection groove, and the third annular electrical connection groove, and are respectively electrically connected with conductive terminals in the first annular electrical connection groove, the second annular electrical connection groove, and the third annular electrical connection groove.

15. The installation assembly according to claim 12 , wherein:

the fixing base is provided with a power access port and a control switch group;

the power access port is configured to connect a power line, and to be electrically connected with the first electrical connection portion; and

the control switch group is configured to control switching on and off of supplying power from the power access port to the first electrical connection portion.

16. The installation assembly according to claim 15 , wherein:

the power access port comprises a positive access port and a negative access port;

the control switch group comprises a first control switch and a second control switch; and

the first control switch and the second control switch are respectively connected with the positive access port and the negative access port.

17. The installation assembly according to claim 16 , wherein:

the power access port further comprises a ground access port;

the control switch group further comprises a third control switch; and

the third control switch is electronically connected with the ground access port.

18. The installation assembly according to claim 17 , wherein:

the fixing base is provided with a threading hole running through both ends of the fixing base; and

a side wall of the threading hole is provided with the positive access port, the negative access port and the ground access port.

19. The installation assembly according to claim 1 , wherein an elastic tensioning portion is provided between the connecting base and the fixing base; and the elastic tensioning portion is configured to apply an elastic tension force to the connecting base.

20. A ceiling lamp, comprising a base plate, a light source, a driver, a connecting base, and a lamp cover assembled on the base plate; the lamp cover and the base plate forming a light mixing cavity; the light source comprising a substrate and a light source; the driver and the light source being mounted on the substrate and located in the light mixing cavity; the connecting base comprising a lamp body mounting portion and a side wall extending along an outer peripheral edge of the lamp body mounting portion and perpendicular to the outer peripheral edge of the lamp body mounting portion; an edge of the side wall protruding inwardly to form a flange; the flange and the side wall forming a snap recess; the snap recess being configured to be snap-fitted with an elastic buckle of a fixing base of a ceiling lighting fixture; the lamp body mounting portion comprising a second electrical connection portion and an electrical connection port electrically connected with the second electrical connection portion; the driver and the light source being electrically connected with the electrical connection port; and the second electrical connection portion being configured to be electrically connected with a first electrical connection portion of the fixing base.