CN103062635A

Movatterモバイル変換

Info

Publication number: CN103062635A
Application number: CN2011103183937A
Authority: CN
Inventors: 赖志铭
Original assignee: Foxsemicon Integrated Technology Shanghai Inc; Foxsemicon Integrated Technology Inc
Current assignee: Foxsemicon Integrated Technology Shanghai Inc; Foxsemicon Integrated Technology Inc
Priority date: 2011-10-19
Filing date: 2011-10-19
Publication date: 2013-04-24

Abstract

本发明提供一种LED灯泡，其包括：至少一个LED光源、一个电极接头、一个散热器以及一个灯罩。所述LED光源设置于所述散热器上。所述散热器具有相对的两端部，一端与所述电极接头连接，另一端则裸露于空气中。所述灯罩环绕所述LED光源并包覆于部分的所述散热器上，同时与所述电极接头连结。本发明LED灯泡藉由所述灯罩在外部的设置，使所述灯泡在组装时不会被烫伤，提高使用的安全性。

The invention provides an LED light bulb, which includes: at least one LED light source, an electrode joint, a radiator and a lampshade. The LED light source is arranged on the radiator. The heat sink has two opposite ends, one end is connected with the electrode joint, and the other end is exposed in the air. The lampshade surrounds the LED light source and covers part of the heat sink, and is connected with the electrode connector at the same time. The LED light bulb of the present invention prevents the light bulb from being scalded during assembly through the arrangement of the lampshade on the outside, thereby improving the safety of use.

Description

The LED bulb

Technical field

The present invention relates to a kind of LED bulb, espespecially a kind of LED bulb of scalding avoided.

Background technology

The LED bulb is applied in the every field with the characteristic of its high efficiency low power consuming.Usually, all need to dispose heat abstractor on the LED bulb, thereby reach the purpose that improves the LED bulb service life to the outside with the dissipation of heat that the LED bulb is produced.At present in order to improve the high-cooling property of free convection, the fin that heat radiation is used is arranged on the LED bulb shell, but its heatsink temperature is often up to 45 degree Celsius even more than 50 degree, such high temperature is positioned on the shell of bulb, causes easily the accident of scald when the dismounting of bulb or assembling.If this fin is arranged at bulb inside, or the material that bulb shell is adopted plastics is scalded avoiding, the heat that the such mode of thought will make this bulb come out can't dissipate, also the effect of cooling can't be produced by the free convection of outside air, thereby the service life of LED light fixture can be shortened because of heat dissipation problem.

Summary of the invention

In view of this, be necessary to provide a kind of LED bulb that good heat radiating function can not be burned again that has.

The invention provides a kind of LED bulb, it comprises: at least one led light source, an electrode contact, a radiator and a lampshade.Described led light source is arranged on the described radiator.Described radiator has relative both ends, and an end is connected with described electrode contact, and the other end then is exposed in the air.Described lampshade is around described led light source and be coated on the described radiator of part while and described electrode contact binding.

LED bulb of the present invention is by the setting externally of described lampshade, described bulb can not be burned when assembling, and described radiator still has an end to be exposed to the convection current that realizes nature in the air, thereby reach the efficiently radiates heat to the LED bulb, therefore can improve simultaneously the security of use and safeguard the purpose in its service life.

Description of drawings

Fig. 1 is the generalized section of LED bulb the first embodiment of the present invention.

Fig. 2 is the generalized section of LED bulb the second embodiment of the present invention.

Fig. 3 is the generalized section of LED bulb the 3rd embodiment of the present invention.

Fig. 4 is the generalized section of LED bulb the 4th embodiment of the present invention.

Fig. 5,6 and 7 is front views of the radiator of LED bulb of the present invention.

Fig. 8 is the generalized section of LED bulb the 5th embodiment of the present invention.

The main element symbol description

TheLED bulb	10、10A、10B、10C、10D
		Led light source	12
Electrodecontact	14
		Radiator	16
Stiff end	162
		Radiating end	164
Lampshade	18
		The top	182
Concaveconvexstructure	184

The following specific embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.

The specific embodiment

Below in conjunction with accompanying drawing the present invention being done one specifically introduces.

See also shown in Figure 1ly, be the generalized section of LED bulb first specific embodiment of the present invention.DescribedLED bulb 10 comprises at least one ledlight source 12, anelectrode contact 14, aradiator 16 and a lampshade 18.Described ledlight source 12 is arranged on the describedradiator 16, and evenly distributing on the outer fringe surface of describedradiator 16 consists of hot connection, makes the heat of described ledlight source 12 luminous generations can be directly conducted to described radiator 16.Describedradiator 16 has relative both ends 162,164, and wherein an end is that the other end is to be exposed in the air for 164 of radiating ends forstiff end 162 and describedelectrode contact 14 are connected and fixed.It is tops for describedLED bulb 10 that describedradiator 16 is exposed to airborne described radiatingend 164, and described radiatingend 164 end faces are to be a plane.Describedradiator 16 is the hollow-core construction of an inverted trapezoidal shape.The material of describedradiator 16 comprises the metal material of high thermal conductivity coefficient, alloy such as copper, tin, aluminium, gold, silver, molybdenum, tungsten, magnesium or these metals, also or ceramic material such as AlO, AlN, BeO etc., and high radiative material radiance greater than 0.7 material such as the Alumite of (emissivity〉0.7), can be in addition the composite that comprises described metal and pottery, or the laminated construction material of described metal and pottery.Describedelectrode contact 14 is to adopt the mode correspondence that fastens that is spirally connected or pegs graft to be installed on the lamp bulb connecting holder (not indicating among the figure), such as traditional be spirally connected bulb adapter or special joint of other grafting manner, the specification of its joint such as E14, E17, E26, E27, GU10, PAR30, MR16 etc.Describedlampshade 18 is around the described ledlight source 12 that is arranged on the describedradiator 16, and coating the describedradiator 16 of part, simultaneously atstiff end 162 places and 14 bindings of described electrode contact of described radiator 16.The other end of the relatively describedelectrode contact 14 of describedlampshade 18 is thetop 182 of described lampshade 18.Describedtop 182 is a plane, and radiatingend 164 planes of 182 planes, described top and describedradiator 16 are positioned at same plane.The material of describedlampshade 18 comprises resin (Resin), epoxy resin (Epoxy), silica gel (Silicone), high molecular polymer (Polymer), transparent polyester optical material (Polyethylene terephthalate), polycarbonate resin (PC), acryl, glass and polymethyl acrylate (PMMA) etc., wherein the describedlampshade 18 of glass material can be in order to scattering or transmitted ray, andlampshade 18 surfaces namely can be the surface of a scattered light for the surface of cloudy surface processing as described.18 all not heat conduction of material such as described lampshade such as grade make describedlampshade 18 temperature can not be higher than the temperature of describedradiator 16.

During use, it is the electrical connection that sees through describedelectrode contact 14 that the electric power of described ledlight source 12 provides, 12 of describedelectrode contact 14 and described led light sources then connect via the electric connection of circuit board (indicating among the figure) and draw electric power, do not pass through the part of describedradiator 16, therefore describedLED bulb 10 is the kenels of separating for an electric heating, not the mutual quality of describedLED bulb 10 products of interference effect.DescribedLED bulb 10 is in dismounting or assembling running, the part of main contact is athermanous describedlampshade 18 parts, be difficult for the radiatingend 164 of contact and describedlampshade 18tops 182 conplane describedradiators 16, so can not produce the accident of scald.But described radiatingend 164 is exposed in the air air cooling heat dissipation state that forms free convection, then can reach simultaneously heat radiation to describedLED bulb 10 to safeguard the purpose in its service life.

Please consult Fig. 2 again, be the generalized section of LED bulb the second embodiment of the present invention, describedLED bulb 10A comprises at least one ledlight source 12, anelectrode contact 14, aradiator 16 and a lampshade 18.The structure of describedLED bulb 10A, material and effect are basically identical with the described LED bulb of described thefirst embodiment 10, and difference is that describedradiator 16 is the solid construction of an inverted trapezoidal shape.The solid construction of described inverted trapezoidal can increase the area of dissipation of describedradiator 16.

See also Fig. 3, be the generalized section of LED bulb the 3rd embodiment of the present invention, described LED bulb 10B comprises at least one ledlight source 12, anelectrode contact 14, aradiator 16 and a lampshade 18.The structure of described LED bulb 10B, material and effect are basically identical with the described LED bulb of described thefirst embodiment 10, and difference is that describedradiator 16 is a column structure.Describedradiator 16 columns are the open column shape body structure, and vertical being arranged on the describedelectrode contact 14.

Please consult Fig. 4 again, be the generalized section of LED bulb the 4th embodiment of the present invention, describedLED bulb 10C comprises at least one ledlight source 12, anelectrode contact 14, aradiator 16 and a lampshade 18.The structure of describedLED bulb 10C, material and effect are basically identical with the described LED bulb of described thefirst embodiment 10, and difference is that describedradiator 16 is a trapezoidal shape structure.Describedtrapezoidal shape radiator 16 is solid construction.

Please consult Fig. 5,6 and 7 again, be the front view of the radiator of LED bulb of the present invention, describedradiator 16 is a cone structure (as shown in Figure 5), can be the describedled light source 12 that the row shape distributes described pyramidal conical surface setting.Describedradiator 16 is class's column structure (as shown in Figure 6), can evenly distribute described ledlight source 12 is set on the class surface of described class column.Describedradiator 16 is a trapezoidal shape structure (or claiming flared structure) with curved surface, and as shown in Figure 7, can evenly distribute on described trapezoidal shape curved surface arranges described ledlight source 12.

See also Fig. 8, be the generalized section of LED bulb the 5th embodiment of the present invention, describedLED bulb 10D comprises at least one ledlight source 12, anelectrode contact 14, aradiator 16 and a lampshade 18.The structure of describedLED bulb 10D, material and effect are basically identical with the described LED bulb of described thefirst embodiment 10, and difference is that describedlampshade 18 surfaces haveconcaveconvex structure 184 and arrange.Describedconcaveconvex structure 184 can be arranged on outer surface or the inner surface of described lampshade 18.Concaveconvex structure described in thepresent embodiment 184 is arranged on the outer surface of describedlampshade 18, and the light that described ledlight source 12 is launched can be made the deviation on the direction, and is convenient to design effective field of illumination.

Describedradiator 16 structures in the above-mentioned embodiment are the polyhedral structures for geometry, make that described ledlight source 12 can equably or the distribution that is the row shape be arranged on the described polyhedral structure, the running of dispelling the heat in order to direct conduction heat energy, even describedlampshade 18 is around being coated on the describedradiator 16 that described ledlight source 12 arranges, it has and is exposed to airborne radiatingend 164 and still can carries out cross-ventilated thermolysis.

To sum up,LED bulb 10 of the present invention has describedlampshade 18 in the setting of describedradiator 16 outer rims, can safeguard and avoid the accident of scalding when describedLED light fixture 10 uses, and have and be exposed to airborne described radiatingend 164 and carry out the heat radiation running, thereby also can reach keeping described LED bulb service life.

In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.

Claims

1. LED bulb, it comprises: at least one led light source, an electrode contact, a radiator and a lampshade, described led light source is arranged on the described radiator, described radiator has relative both ends, one end is connected with described electrode contact, the other end then is exposed in the air, and described lampshade is around described led light source and be coated on the described radiator of part while and described electrode contact binding.

2. LED bulb as claimed in claim 1 is characterized in that: described led light source evenly distributes on the outer fringe surface of described radiator or being the row shape distributes and consist of hot connection, and described led light source is via circuit board and the electric connection of described electrode contact.

3. LED bulb as claimed in claim 1, it is characterized in that: described heat spreader structures body is the polyhedral structure for geometry, and being exposed to an airborne end is radiating end, and described radiating end is the top for described LED bulb, and its end face is a plane.

4. LED bulb as claimed in claim 3, it is characterized in that: described radiator geometry has inverted trapezoidal shape, trapezoidal shape, column, class's column, taper and has the trapezoidal shape of curved surface.

5. LED bulb as claimed in claim 3, it is characterized in that: described heat spreader structures body is hollow body or solid structure.

6. LED bulb as claimed in claim 1, it is characterized in that: the other end of the relatively described electrode contact of described lampshade is the top of described lampshade, described top is a plane, and is positioned at same plane with the described end face of described radiator heat-dissipation end.

7. LED bulb as claimed in claim 1, it is characterized in that: described lampshade surface has the concaveconvex structure setting, and described concaveconvex structure can be arranged on outer surface or the inner surface of described lampshade.

8. LED bulb as claimed in claim 1, it is characterized in that: described electrode contact is installed on the lamp bulb connecting holder with the mode correspondence that fastens that is spirally connected or pegs graft, and described electrode contact is the joint of E14, E17, E26, E27, GU10, PAR30, MR16 equal-specification.

9. LED bulb as claimed in claim 1, it is characterized in that: the material of described radiator comprises the alloy of the metal material of copper of high thermal conductivity coefficient, tin, aluminium, gold, silver, molybdenum, tungsten, magnesium or these metals, also or ceramic material AlO, AlN, BeO, high radiative material radiance is greater than 0.7 Alumite, or comprise described metal with the pottery composite, or described metal with the pottery the laminated construction material.

10. LED bulb as claimed in claim 1, it is characterized in that: the material of described lampshade comprises resin (Resin), epoxy resin (Epoxy), silica gel (Silicone), high molecular polymer (Polymer), transparent polyester optical material (Polyethylene terephthalate), polycarbonate resin (PC), acryl, glass and polymethyl acrylate (PMMA) etc.

11. LED bulb as claimed in claim 10 is characterized in that: the material of described lampshade is glass material, and described glass surface is the surface that cloudy surface is processed.