Ceiling lamp with light guide plate and assembly method thereof

Abstract

The present invention relates to a ceiling lamp with a light guide plate and an assembly method thereof. The ceiling lamp consists of a board assembly, and a lamp body assembly attached to the board assembly via a fixation assembly.

Claims

1. A ceiling lamp with a light guide plate, consisting of a board assembly, and a light body assembly attached to the board assembly via a fixation assembly; wherein the light body assembly consists of: a lamp cover with a circumferential edge that has an annular groove, a plurality of lamp cover screw holes that are vertically distributed on an internal surface of the annular groove, an optical diffuser, the light guide plate, an aluminum board wrapping around a circumferential side wall of the light guide plate, a reflector board, and a backboard; wherein the optical diffuser, the light guide plate, the aluminum board and the reflector board are orderly arranged in a round tray confined by the annular groove; wherein the backboard consists of: a board, a pair of semi-circular-shaped convexes that are symmetrically protruding from two symmetrical semi-circle portions of one side of the board, a pair of semi-circular-shaped concave cavities correspondingly formed on the other side of the board, a second center hole located on the board, and a plurality of tapped holes arranged on an edge of the backboard; wherein each of the semi-circular-shaped concave cavities is provided with a PCB and a plurality of sponge blocks that are located around the PCB.

2. The ceiling lamp with the light guide plate according to claim 1, characterized in that a plurality of bulging blocks are radiated from the circumferential side wall of the light guide plate.

3. The ceiling lamp with the light guide plate according to claim 2, characterized in that the backboard, the optical diffuser, the light guide plate, the aluminum board, the LED light source and the reflector board are fixedly arranged in the light body assembly through screws screwing in the tapped holes on the backboard and then in the lamp cover screw holes; the bending portion is stopped from moving by a buckle located on an edge of an outer wall of the annular groove so that the board assembly is fixedly connected to the round tray confined by the annular groove and the light body assembly is therefore fixedly connected to the board assembly.

4. The ceiling lamp with the light guide plate according to claim 3, characterized in that the buckle located on the edge of the outer wall of the annular groove of the lamp cover is provided with a first bump; a second bump is provided on the brink of the board assembly; when rotating the light body assembly, the first bump on the buckle thus clips to lock when hitting the second bump on the brink of the board assembly.

5. The ceiling lamp with the light guide plate according to claim 1, characterized in that the board assembly consists of a cross-shaped connecting board pierced with a first center hole and a bending sheet attached to the cross-shaped connecting board, wherein the bending sheet has a bending portion that extends from an end of the bending sheet and vertically stands against an edge of the backboard of the light body assembly and a brink that projects from an end of the bending portion.

6. The ceiling lamp with the light guide plate according to claim 5, characterized in that the bending sheet consists of: four slats that form a cross, positioning holes that located on the slats, four bending portions each extending vertically from an end of the slat, and four brinks each projecting from the bending portion.

7. An assembly method of a ceiling lamp with a light guide plate, comprising: fixing a buckle to an annular groove of a lamp cover through screwing screws; welding a bending sheet to a cross-shaped connecting board, wherein the bending sheet has a bending portion that extends from an end of the bending sheet and vertically stands against an edge of a backboard and a brink that projects from an end of the bending portion; placing PCBs and a plurality of sponge blocks in two semi-circular-shaped convexes of the backboard and connecting the PCBs to an LED light source that is attached to an aluminum board; placing an optical diffuser, the aluminum board wrapping around a circumferential side wall of the light guide plate, a reflector board and the backboard successively into a round tray of the lamp cover, fixing the optical diffuser, the aluminum board, the light guide plate, the reflector board, and the backboard to the lamp cover through screwing screws into tapped holes on the backboard; and rotating a light body assembly consisting of the lamp cover, the optical diffuser, the light guide plate, the aluminum board, the reflector board, and the backboard to enable a first bump on the buckle to clip and to lock when hitting a second bump on the brink of the bending sheet so as to complete the assembly of the ceiling lamp.

8. The assembly method of the ceiling lamp with the light guide plate according to claim 7, characterized in that an outer wall of the lamp cover, the annular groove and the round tray are made as die-cast one piece; or the outer wall of the lamp cover, the annular groove and the round tray are formed by bending aluminum profiles.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is an exploded view of a ceiling lamp with a light guide plate of the present invention.

(2) FIG. 2 is a top plan view showing a ceiling lamp with a light guide plate of the present invention after being assembled.

(3) FIG. 3 is a cross-sectional view of the ceiling lamp taken along line A-A of FIG. 2.

(4) FIG. 4 is a cross-sectional view of the ceiling lamp taken in direction of line B of FIG. 2.

LIST OF REFERENCE NUMERALS

(5) 1. board assembly 12. cross-shaped connecting board 121. first center hole 13. bending sheet 131. slat 1311. second center hole 1312. positioning hole 132. bending portion 1321. second bump 133. brink 2. lamp body assembly 21. lamp cover 211. annular groove 212. round tray 213. lamp cover screw hole 22. optical diffuser 23. light guide plate 231. bulging block 24. aluminum board 241. LED light source 25. reflector board 26. backboard 261. board 2611. second center hole 2612. tapped hole 262. semi-circular-shaped convex 262. semi-circular-shaped concave cavity 27. sponge block 28. PCB 3. fixation assembly 31. buckle 311. screw hole 312. first bump 32. screw 42. screw

DETAILED DESCRIPTION OF ILLUSTRATED EMBODIMENTS

(6) Embodiments of the present invention are further explained clearly as follows in conjunction with figures.

(7) Referring to FIGS. 1 to 3, a ceiling lamp with a light guide plate consists of a board assembly 1, and a lamp body assembly 2 attached to the board assembly 1 via a fixation assembly 3.

(8) In the present embodiment, the board assembly 1 consists of a cross-shaped connecting board 12 pierced with a first center hole 121 and a bending sheet 13 attached to the cross-shaped connecting board 12, wherein the bending sheet 13 has a bending portion 132 that extends from an end of the bending sheet 13 and vertically stands against an edge of a backboard 26 and a brink 133 that projects from an end of the bending portion 132.

(9) In the present embodiment, the bending sheet 13 consists of four slats 131 that form a cross, positioning holes 1312 located on the slats 131, four bending portions 132 each extending vertically from an end of the slat 131, and four brinks 133 each projecting from the bending portion 132.

(10) In the present embodiment, the lamp body assembly 2 consists of a lamp cover 21 with a circumferential edge that has an annular groove 211, a plurality of lamp cover screw holes 213 that are vertically distributed on an internal surface of the annular groove 211, an optical diffuser 22, the light guide plate 23, an aluminum board 24 wrapping around a circumferential side wall of the light guide plate 23, a reflector board 25, and the backboard 26; wherein the optical diffuser 22, the light guide plate 23, the aluminum board 24 and the reflector board 25 are orderly arranged in a round tray 212 confined by the annular groove 211.

(11) In the present embodiment, the backboard 26 consists of a board 261, a pair of semi-circular-shaped convexes 262 that are symmetrically protruding from two symmetrical semi-circle portions of one side of the board 261, a pair of semi-circular-shaped concave cavities 262 correspondingly formed on the other side of the board 261, a second center hole 2611 located on the board 261, and a plurality of tapped holes 2612 arranged on an edge of the backboard 26. Each of the semi-circular-shaped concave cavities 262 is provided with a PCB 28 and a plurality of sponge blocks 27 that are located around the PCB 28.

(12) In the present embodiment, a plurality of bulging blocks 231 are radiated from the circumferential side wall of the light guide plate 23.

(13) In the present embodiment, the aluminum board 24 is attached with an LED light source 241.

(14) In the present embodiment, the fixation assembly 3 consists of a plurality of buckles 31, screw holes 311 arranged on the buckles 31, a plurality of first bumps 312 each arranged on the buckle 31, and screws 32 that screwed in the screw holes 311 to fix the buckles 31 to the annular groove 211.

(15) In the present embodiment, the backboard 26, the optical diffuser 22, the light guide plate 23, the aluminum board 24, the LED light source 241 and the reflector board 25 are fixedly arranged in the light body assembly 2 through screws 42 screwing in the tapped holes 2612 on the backboard 26 and then in the lamp cover screw holes 213.

(16) In the present embodiment, referring to FIGS. 3-4, the brinks 133 are placed in the annular groove 211, and pressed and stopped by the buckle 31 so as to immobilize the board assembly 1 and connect together the board assembly 1 and the lamp body assembly 2.

(17) Referring to FIGS. 3-4, the buckle 31 located on an edge of an outer wall of the annular groove 211 of the lamp cover 21 is provided with the first bump 312. A second bump 1321 is provided on the brink 133 of the board assembly 1. When rotating the light body assembly 2, the first bump 312 on the buckle 31 thus clips to lock when hitting the second bump 1321 on the brink 133 of the board assembly 1, in this way, the assembly of the ceiling lamp is complete.

(18) Referring to FIGS. 1 to 4, an assembly method of a ceiling lamp with a light guide plate comprises:

(19) fixing a buckle 31 to an annular groove 211 of a lamp cover 21 through screwing screws 32;

(20) welding a bending sheet 13 to a cross-shaped connecting board 12;

(21) placing PCBs 28 and a plurality of sponge blocks 27 in two semi-circular-shaped convexes 262 of a backboard 26, connecting the PCB 28 to an LED light source 241 that is attached to an aluminum board 24;

(22) placing an optical diffuser 22, the aluminum board 24 wrapping around a circumferential side wall of a light guide plate 23, a reflector board 25 and the backboard 26 successively in a round tray 212 of the lamp cover 21, fixing them to the lamp cover 21 through screwing screws 42 in tapped holes 2612 on the backboard 26;

(23) rotating the light body assembly 2 to enable a first bump 312 on the buckle 31 to clip to lock when hitting a second bump 1321 on a brink 133 of the board assembly 1, so as to complete the assembly of the ceiling lamp.

(24) In one embodiment of the present invention, an outer wall of the lamp cover 21, the annular groove 211 and the round tray 212 are made as die-cast one piece.

(25) In another embodiment of the present invention, the outer wall of the lamp cover 211, the annular groove 211 and the round tray 212 are formed by bending aluminum profiles.

(26) The above-mentioned embodiments are the preferred embodiments of the present invention and are considered in all respects as illustrative and not restrictive. Variations and modifications are allowed within the scope of the invention. Those skilled in the art will appreciate that the features described above can be combined in various ways to form multiple variations of the invention. As a result, such variations fall within the scope of the protection to the present invention.