The LED lamp affixed to the ceilingTechnical field
The utility model relates to a kind of lamp affixed to the ceiling, particularly a kind of LED lamp affixed to the ceiling.
Background technology
At present the LED lamp is as a kind of lighting source of tool potentiality, its exploitation and use and become ripe, and replacing conventional light source has also become a kind of trend.And a kind of just indoor main lighting equipment that adopts LED as light source of LED lamp affixed to the ceiling, its application prospect is quite wide.Present LED lamp affixed to the ceiling mainly contains LGP lateral emitting formula and the illuminated two kinds of structures of direct projection, and LGP lateral emitting formula structure is because light loss is bigger, and the light efficiency light efficiency more illuminated than direct projection is low, and cost is higher relatively, restricts it and applies.The illuminated structure of direct projection is general to adopt a large amount of low-power LEDs to be arranged on the PCB circuit board on the lamp affixed to the ceiling chassis, because lamp affixed to the ceiling chassis area is bigger, so need a fairly large number of led light source of assembling, reduces production efficiency and increases its cost; And want to make the light on the common lampshade must guarantee that evenly common lampshade has enough distances with between the led light source, thereby influenced the aesthetic property and the practicality of product.Therefore, be necessary to do further improvement and perfect.
The utility model content
The purpose of the utility model aims to provide a kind of simple and reasonable, high light efficiency, the high LED lamp affixed to the ceiling of easy, the luminous all even production efficiency of assembling, to overcome weak point of the prior art.
A kind of high light efficiency direct-injection type LED lamp affixed to the ceiling by this purpose design; Comprise the lamp body that heat radiation chassis and diffusion shell constitute; Be provided with power module and light source module between diffusion shell and the heat radiation chassis; Its architectural feature is that said light source module is the LED assembly that is strip more than, and this LED assembly is uniformly distributed in the bottom on heat radiation chassis; The LED assembly is electrically connected with power module, forms an annular or a polygonal light emitting source, and the LED assembly comprises the PCB circuit board and is arranged at the LED paster light source on the PCB circuit board; Power module is fixedly arranged on diffusion shell or the heat radiation chassis.
The corresponding LED assembly in said heat radiation chassis is provided with the light source fixing hole, and the LED assembly connects and fixes with the heat radiation chassis or is fastened or is threaded fixing; The heat radiation chassis is provided with the location division, and the corresponding location division of roof or ceiling is provided with positioning match part.
Said location division is a Lift hook, and the opening part of Lift hook is provided with the clamping limit that prevents that lamp body from dropping; Positioning match part is the lifting plate, and the left and right sides of this lifting plate is provided with bending edge, and the lifting plate is fixedly arranged on roof or the ceiling.
Said Lift hook takes the shape of the letter U or is L shaped, and the lifting plate is provided with recess, and Lift hook is sheathed on the lifting plate, and leans with recess; The corresponding Lift hook in heat radiation chassis is provided with pilot hole, and Lift hook is provided with screw and the securing member that is complementary with pilot hole, and Lift hook is locked in the top on heat radiation chassis through securing member.
Said heat radiation chassis and diffusion shell are for being provided with up and down, and the corresponding LED assembly of diffusion shell is provided with convexity, this convexity and diffusion shell one plastics sucking moulding; Protruding and heat radiation chassis constitutes the light diffusion chamber of an ellipse or arc, the decoration side ring that the bottom of diffusion shell is provided with.
Said decoration side ring comprises more than one piece splicing composition or inlays composition that this piece is circular; Piece is provided with threaded projection, and heat radiation chassis and diffusion shell are provided with and projection connecting hole one to one, and securing member passes heat radiation chassis and diffusion shell successively, and decorates the side ring matching and fixing, and this securing member is a screw.
The utility model compared with prior art has the following advantages:
More convenient when 1, the combination of Lift hook and lifting plate lets the lamp body installation and removal, and utilized gravity that the clamping limit on the Lift hook is fixed on the recess of lifting plate, thus play the effect that prevents that lamp body from dropping, improve security of products and reliability.
2, the convexity on the diffusion shell constitutes a light diffusion chamber with the heat radiation chassis, to reach the purpose of high light efficiency, improves the uniformity of light; And the heat radiation chassis adopts aluminum alloy plate materials through the Sheet Metal Forming Technology moulding, and aluminium alloy plate is easy to heat conduction, and the heat that LED assembly self is produced distributes rapidly, increases the service life of LED assembly greatly.
3, form an annular or a polygonal light emitting source by several barcode LED assemblies that distribute ringwise; Can improve the effective rate of utilization of light source; Save a large amount of LED paster light sources and PCB circuit board; Thereby under the preceding topic that guarantees light efficiency, reduce cost, increase or reduce the density of arranging of LED assembly as required; The characteristics that it has simple and reasonable, good heat dissipation effect, assembling is easy and be convenient to processing.
Description of drawings
Fig. 1 is an embodiment decomposition texture sketch map of the utility model.
Fig. 2 looks the sectional structure sketch map for the master after Fig. 1 assembling.
Fig. 3 is the A place enlarged diagram among Fig. 2.
Fig. 4 looks up structural representation after for dismounting diffusion shell among Fig. 2.
Fig. 5 is diffusion shell and heat radiation chassis assembling sketch map.
Fig. 6 is lifting plate and Lift hook decomposition texture sketch map.
Fig. 7 is the perspective view after Fig. 6 assembling.
Among the figure: 1 is the lifting plate, and 1.1 is bending edge, 1.2 recess, and 2 is Lift hook, 2.1 is screw; 2.2 be the clamping limit, 3 are the heat radiation chassis, 3.1 is pilot hole, and 3.2 is the light source fixing hole, and 3.3 is connecting hole; 4 for decorating side ring, and 4.1 is projection, and 5 is diffusion shell, and 5.1 is protruding, and 6 is power module; 7 is the LED assembly, and 7.1 is the PCB circuit board, and 7.2 is LED paster light source, and 8 is securing member, and 9 is binding post.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Referring to Fig. 1-Fig. 7, this high light efficiency direct-injection type LED lamp affixed to the ceiling comprises the lamp body thatheat radiation chassis 3 anddiffusion shell 5 constitute, andheat radiation chassis 3 adopts aluminum alloy plate materials through the Sheet Metal Forming Technology moulding, anddiffusion shell 5 adopts diffuser plate through the plastic uptake technological forming.Thedecoration side ring 4 that the bottom ofdiffusion shell 5 is provided with, decoratingside ring 4 is to be spliced by four circular pieces.Piece is provided with threaded projection 4.1, is respectively arranged with onheat radiation chassis 3 and thediffusion shell 5 and projection 4.1 connecting hole 3.3 one to one, during assembling; Earlier the edge ofdiffusion shell 5 and the edge onheat radiation chassis 3 are pasted mutually; And making connecting hole 3.3 alignment onheat radiation chassis 3 and thediffusion shell 5, projection 4.1 inserts in the connecting holes 3.3, will decorateside ring 4 anddiffusion shell 5 is fixed on thechassis 3 of dispelling the heat through securingmember 8; This securingmember 8 is a screw, sees Fig. 2-Fig. 3.
Diffusion shell 5 is setting up and down withheat radiation chassis 3, is provided withpower module 6 and light source module betweendiffusion shell 5 and the heat radiation chassis 3.Power module 6 utilizes the top of screw onheat radiation chassis 3, andpower module 6 is connected with thebinding posts 9 that are fixed on 3 outsides, heat radiation chassis through lead, is connected with civil power when bindingpost 9 supplies lamp bodies to install.It is protruding 5.1 thatdiffusion shell 5 corresponding light source modules are provided with, this convexity 5.1 anddiffusion shell 5 one plastics sucking mouldings, and protruding 5.1 constitute the light diffusion chamber of ellipses or arc withheat radiation chassis 3, when realizing high light efficiency, improve the uniformity of light.
Light source module is that six to eightLED assemblies 7 that are strip constitute, andLED assembly 7 is uniformly distributed in the bottom on heat radiation chassis 3.Heat radiation chassis 3corresponding LED assemblies 7 are provided with light source fixing hole 3.2, andLED assembly 7 is fixed on the light source fixing hole 3.2 through screw and heat radiation chassis 3.LED assembly 7 is electrically connected with PCB circuit board 7.1 andpower module 6 respectively; Form an annular or a polygonal light emitting source,LED assembly 7 comprises PCB circuit board 7.1 and is arranged at the LED paster light source 7.2 on the PCB circuit board 7.1 that its purpose is: under the preceding topic that guarantees light efficiency; Whole lamp cost is reduced; And save the quantity ofLED assembly 7, be convenient to assembling, be applicable to batch process.
Heat radiation chassis 3 is provided with the location division, and the corresponding location division of ceiling is provided with positioning match part.The location division is aLift hook 2, andheat radiation chassis 3corresponding Lift hooks 2 are provided with pilot hole 3.1, and Lifthook 2 is provided with screw 2.1 and the screw that is complementary with pilot hole 3.1, and Lifthook 2 is fixed in the top onheat radiation chassis 3 through screwlock.Lift hook 2 takes the shape of the letter U, and the opening part ofLift hook 2 is provided with the clamping limit 2.2 that prevents that lamp body from dropping, and sees Fig. 6-Fig. 7.Positioning match part is provided with recess 1.2 forlifting plate 1,lifting plate 1, and the left and right sides oflifting plate 1 is provided with bending edge 1.1, andlifting plate 1 is fixed on the ceiling.During installation; Be fixed onlifting plate 1 on the ceiling in advance, lamp body hung at the lifting plate, and utilized gravity the clamping limit 2.2 on theLift hook 2 to be fixed on the recess 1.2 oflifting plate 1 throughLift hook 2; Thereby play the effect that prevents that lamp body from dropping, improve security of products and reliability.