Description of drawings
Fig. 1 is the structural representation of the led lamp of first embodiment of the invention.
Fig. 2 be with Fig. 1 in the inversion figure of led lamp.
Fig. 3 is the structural representation of the led lamp of second embodiment of the invention.
Fig. 4 be with Fig. 3 in the inversion figure of led lamp.
The main element symbol description
Led lamp 100,200
Lamp body 10,20
Substrate 11,21
Light emitting diode 12,22
Heat abstractor 13
Housing 24
First electrode contact 15,25
Second electrode contact 16,26
Third electrode joint 17,27
The 4th electrode contact 18,28
First surface 114,214
Second surface 115,215
First end 116,241
The second end 117,242
Fin 134
First projection 191,291
Second projection 192,292
The specific embodiment
To combine accompanying drawing that the embodiment of the invention is done further to specify below.
See also Fig. 1 and Fig. 2, first embodiment of the invention provides a kind of led lamp 100, and it comprises: lamp body 10, one first electrode contacts 15, second electrode contact 16, third electrode joint 17 and the 4th electrode contact 18.
In the present embodiment, this lamp body 10 is tabular.Particularly, this lamp body 10 comprises a substrate 11, some light emitting diodes 12, and a heat abstractor 13.This substrate 11 comprise a first surface 114 and with these first surface 114 opposing second surface 115.This substrate 11 has first end 116 and the second end 117 that is positioned at this first surface 114 and this second surface 115 opposite ends.
Said light emitting diode 12 is arranged on the first surface 114 of this substrate, thereby the first surface 114 of this substrate 11 is as the exiting surface of this led lamp 100.
This heat abstractor 13 is arranged on the second surface 115 of this substrate 11.In the present embodiment, this heat abstractor 13 comprises the fin 134 of some spaces.And these a plurality of fin 134 extend axially along this substrate 11, and it highly reduces to both sides from the centre of substrate 11 gradually.Therefore, these a plurality of fin 134 can form good cross-ventilation, thereby the heat that produces better will these a plurality of light emitting diodes 12 work the time distributes.
This first electrode contact 15 is opposite with these second electrode contact, 16 polarity, all is arranged on the first end 116 of this substrate 11.This third electrode joint 17 is opposite with the 4th electrode contact 18 polarity, all is arranged on the second end 117 of this substrate 11.This first electrode contact 15 and this third electrode joint 17 are positioned at the not homonymy of this substrate 11, and polarity is identical.This second electrode contact 16 and the 4th electrode contact 18 are positioned at the not homonymy of this substrate 11, and polarity is identical.In the present embodiment, this first electrode contact 15 is electrically connected with the 4th electrode contact 18 and is electrically connected with external power source and forms first loop, and this second electrode contact 16 is electrically connected and is electrically connected with external power source formation second loop with this third electrode joint 17.
Be provided with anti-misoperation device on this first electrode contact 15 and this third electrode joint 17.In the present embodiment, this anti-misoperation device comprises first projection 191 and second projection 192.This first projection 191 and second projection 192 are rectangular.This first electrode contact 15 has first upper surface 151 away from the first surface 114 of this substrate 11.This first projection 191 is arranged on first upper surface 151 of this first electrode contact 15.This third electrode joint 17 has second upper surface 171 away from the first surface 114 of this substrate 11.This second projection 192 is arranged on first upper surface 171 of this third electrode joint 17.
In the present embodiment, can preestablish the polarity of this first electrode contact 15 with anti-misoperation device and this third electrode joint 17, thereby in installation process, be easy to distinguish each electrode.And; Because this first electrode contact 15 lays respectively at the two ends of this substrate 11 with this third electrode joint 17, and is positioned at not homonymy, around the planar central formation center symmetry of led lamp 100; Therefore; In installation process,, can not influence the correctness that this led lamp 100 is electrically connected with external circuit even rotate this led lamp 100 yet.So this led lamp 100 is simple in structure, easy for installation.
See also Fig. 3 and Fig. 4; Second embodiment of the invention provides a kind of led lamp 200; Led lamp 100 structures that itself and first embodiment provide are basic identical; Comprise a lamp body 20, one first electrode contacts 25, second electrode contact 26, third electrode joint 27 and the 4th electrode contact 28.
Led lamp 100 differences that this led lamp 200 and first embodiment provide are that the fluorescent tube of this led lamp 200 is rounded.Particularly, this lamp body 20 comprises a housing 24, one substrates 21, and is arranged on the some light emitting diodes 22 on this substrate 21.
This housing 24 is hollow cylindrical, and the substrate 21 that is provided with these some light emitting diodes 22 is contained in this housing 24.This housing 24 has a first end 241 and one and its opposite second end 242.In the present embodiment, this housing 24 is processed by light transmissive material.
This substrate 21 comprises a first surface 214 and one and its opposing second surface 215.These some light emitting diode 22 uniform arrays are arranged on the first surface 214 of this substrate 21, and therefore, the first surface 214 of this substrate 21 is the exiting surface of this led lamp 200.The light that these some light emitting diodes 22 send passes this housing 24 and outgoing.
This first electrode contact 25 is opposite with these second electrode contact, 26 polarity, all is arranged on the first end 241 of this housing 24.This third electrode joint 27 is opposite with the 4th electrode contact 28 polarity, all is arranged on the second end 242 of this housing 24.This first electrode contact 25 and this third electrode joint 27 are positioned at the not homonymy of this housing 24, and polarity is identical.This second electrode contact 26 and the 4th electrode contact 28 are positioned at the not homonymy of this housing 24, and polarity is identical.In the present embodiment, this first electrode contact 25 is electrically connected with the 4th electrode contact 28 and is electrically connected with external power source and forms first loop, and this second electrode contact 26 is electrically connected and is electrically connected with external power source formation second loop with this third electrode joint 27.
This first electrode contact 25 has one first upper surface 251, and this third electrode joint 27 has one second upper surface 271.In the present embodiment, this first upper surface 251 and this second upper surface 271 are positioned at the same side of the second surface 215 of this substrate 21.Be provided with anti-misoperation device on this first electrode contact 25 and this third electrode joint 27.In the present embodiment, this anti-misoperation device comprises first projection 291 and second projection 292.This first projection 291 and second projection 292 are rectangular.Particularly, this first projection 291 is arranged on first upper surface 251 of this first electrode contact 25, and this second projection 282 is arranged on second upper surface 271 of this third electrode joint 27.
In the present embodiment, can preestablish the polarity of this first electrode contact 25 with anti-misoperation device and this third electrode joint 27, thereby in installation process, be easy to distinguish each electrode.And; Because this first electrode contact 25 and this third electrode joint 27 lay respectively at the two ends of this housing 24; And be positioned at not homonymy, therefore, in installation process; Even rotate this led lamp 200, can not influence the correctness that this led lamp 200 is electrically connected with external circuit yet.And,, therefore,, also can be easy to differentiate the exiting surface position of this led lamp 200 even it is cylindrical because this led lamp 200 is provided with anti-misoperation device.So this led lamp 100 is simple in structure, easy for installation.
Those skilled in the art also can do other variation in spirit of the present invention, as long as it does not depart from technique effect of the present invention and all can.These all should be included within the present invention's scope required for protection according to the variation that the present invention's spirit is done.