CN104033774B - A kind of filament LED bulb - Google Patents
A kind of filament LED bulb Download PDFInfo
- Publication number
- CN104033774B CN104033774B CN201410289810.3A CN201410289810A CN104033774B CN 104033774 B CN104033774 B CN 104033774B CN 201410289810 A CN201410289810 A CN 201410289810A CN 104033774 B CN104033774 B CN 104033774B
- Authority
- CN
- China
- Prior art keywords
- transparent tube
- led
- bulb
- lamp socket
- filament
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The present invention is a kind of filament LED bulb, including interior heat sink, described interior heat sink is made up of transparent tube, and the outer surface of transparent tube or inner surface are provided with LED light-emitting component.The present invention uses transparent tube as interior heat sink, LED light-emitting component is contained in transparent tube, the heat making many LED light-emitting components produce is dispelled the heat by compound modes such as conduction of heat, heat radiation and thermal convection currents, reach the effect of cooling, solve the problem that convention heat sink heat radiation is bad, the photoelectricity indexs such as the luminous efficiency of filament LED bulb of use transparent assembling, light sustainment rate and life-span has been effectively ensured.
Description
Technical field
The present invention relates to a kind of technical field of LED illumination, particularly a kind of filament LED bulb.
Background technology
The LED lamp bar using COB encapsulation some is assembled in clear lamp cell-shell, the so-called filament LED bulb made, not only having a warm tones colour temperature identical with conventional incandescent, and its luminous efficiency and index of aging are considerably beyond the index of electric filament lamp, after replacement, energy-saving efficiency is notable.
The LED bulb using 2 to 4 filament LED to assemble, is filled with noble gas in bulb housing in it.Noble gas not only protects the luminous of LED own, and is reduced the temperature of LED by convection effect, and light efficiency reaches about 120Lm/W, the conventional incandescent of alternative 15w-40w.But test shows, when using 6 or more than 6 filament LED to be assembled into LED bulb, luminous efficiency have dropped 10 ~ 20%, and reason is that the convection current of noble gas is not enough to take away more heat；Along with the increase of LED lamp bar encapsulation number, the heat radiation contradiction of whole lamp is the most aobvious prominent, and light efficiency will be further compromised, and is difficult to substitute the conventional incandescent of usage amount more more than 60w power.
Patent of invention " tubular elementary LED and the illuminator of tubular elementary LED composition " (Chinese invention patent number: ZL2008 1 0093558.3) is enclosed LED lamp bar in the glass tubing of respective diameters, glass tubing inwall is close to by LED transparent luminescent substrate, it is filled with nitrogen or the noble gas of enough pressure in glass tubing simultaneously, by heat radiation and thermal convection current effect, the heat that LED produces is passed to glass tubing;And heat is distributed by conduction of heat and thermal convection current by the glass tubing with larger surface area again, the most not only reduce further the temperature of LED lamp bar, and can be air in outside bulb shell.But the heat dissipation capacity of tubular elementary LED is limited by the finite diameter (i.e. surface area) of glass tubing, makes more powerful LED bulb if taked cooling measure to be also difficult to the most further.
Summary of the invention
The technical problem to be solved is for the deficiencies in the prior art, it is provided that a kind of heat sink (heat radiation) problem that can solve the problem that conventional art, improves the filament LED bulb of the combination properties such as luminous efficiency, light sustainment rate and life-span.
The technical problem to be solved is to be realized by following technical scheme, the present invention is a kind of filament LED bulb, being characterized in: include interior heat sink, described interior heat sink being made up of transparent tube, the outer surface of transparent tube or inner surface are provided with LED light-emitting component.The quantity of the LED light-emitting component installed is even number.
In described filament LED bulb, described LED light-emitting component is tubular elementary LED or LED lamp bar.
In described filament LED bulb, described LED light-emitting component is connected in the way of every two series connection are the most parallel with one another, and the electric wire of every two series connection turns down and on the tube wall of close-fitting transparent pipe to the another side of LED light-emitting component installed surface, with the lower end of fixing LED light-emitting component.
In described filament LED bulb, described transparent tube is glass tubing or plastic tube, and the aperture of transparent tube is 2-200mm, wall thickness is 0.1-10mm, its length is corresponding with the length of LED light-emitting component, slightly larger than length and the length sum inserted in lamp socket, a length of 10-300mm of LED light-emitting component.Its surface area size and wall thickness determine the size of heat sink (heat radiation) ability, determine the different capacity of bulb.Glass tubing can be the glass that quartz glass tube, borosilicate glass tube, microcrystal glass tube or common soda lime glass etc. are applicable to the present invention.
In described filament LED bulb, described transparent tube is cone-shaped or column, generally circular in shape, oval, the triangle of its cross section or polygon.Therefore its upper and lower diameter can be identical or different, and wall thickness can also be uneven.
In described filament LED bulb, the surface of described transparent tube has the groove equal with LED light-emitting component quantity, and LED light-emitting component embeds in groove.LED light-emitting component is embedded, and is not only fixed LED light-emitting component, the most thus increases the contact surface of conduction of heat；By the transparent tube with larger surface area, heat is radiated to surrounding, reduce the temperature rise of LED light-emitting component further.
In described filament LED bulb, described groove is uniformly distributed along the circumferential direction of transparent tube.
In described filament LED bulb, described groove be shaped as circular arc, trapezoidal or rectangle, when groove is circular arc, its a diameter of 0.3mm～15mm, and slightly larger than the external diameter of LED light-emitting component.
In described filament LED bulb, described LED light-emitting component is tubular elementary LED, described bulb includes lamp holder, lamp socket and bulb housing, lamp holder is fixed on lamp socket upper end, bulb housing is arranged on lamp socket lower end, lamp socket is provided with some passages, the upper end of described transparent tube is inserted in lamp socket, lamp socket inner chamber is divided into inner cavity chamber and exocoel two parts, aforementioned passage is respectively provided on the lamp socket wall that inner cavity chamber is corresponding with exocoel, the convection holes of transparent tube outer space and lamp socket exocoel it is communicated with between described transparent tube and inboard wall of lamp holder, tubular elementary LED is along the outer surface of transparent tube or being axially mounted on transparent tube wall or groove of inner surface.
Tubular elementary LED is closely mounted on transparent tube surface by the present invention, and collectively forms gaseous exchange system with bulb housing, lamp socket.After lighting a lamp, in transparent tube, outside forms the temperature difference, and then constitute from lamp socket inner cavity chamber or exocoel to outer space in transparent tube again to the thermal-convection loop to lamp socket exocoel or inner cavity chamber, thus reduce the temperature rise of tubular elementary LED, the heat making many tubular elementary LED produce is sent to outside bulb housing by number of ways such as conduction of heat, heat radiation and thermal convection currents, solve heat sink (heat radiation) problem of traditional method, the combination properties such as the luminous efficiency of assembled bulb, light sustainment rate and life-span is effectively ensured.
In described filament LED bulb, described lamp holder is connected with external power, and lamp holder is connected with total electric wire of tubular elementary LED stretched in lamp socket built with LED drive power, the outfan of LED drive power.
It is also provided with the micro-recesses of fixing tubular elementary LED strip connection lead-in wire in the port, one end of transparent tube, prevents series conductor wire from shaking, it is impossible to well to turn down.
In described filament LED bulb, the upper end of described transparent tube is inserted in lamp socket by metal ring, and at the outer ring surface of metal ring and lamp socket lower port, inwall closely cooperates, and its inner ring surface then outer wall with transparent tube closely cooperates, and described convection holes is located on metal ring.
In described filament LED bulb, when described tubular elementary LED is located on transparent tube outer surface, the inner ring surface of above-mentioned metal ring is provided with and tubular elementary LED fixed groove one to one.Fixed groove can be semicircle orifice, the diameter of semicircle orifice is slightly larger than the external diameter of tubular elementary LED, the most both one end of tubular elementary LED had been secured, make again the outer surface of tubular elementary LED close-fitting transparent pipe, the heat of tubular elementary LED so can be transmitted to metal ring and have in the transparent tube of bigger thermal capacity and surface area, being reduced the purpose of tubular elementary LED temperature by heat radiation.When described tubular elementary LED is located on transparent tube inner surface, can be fixed by elastic fixing clamp.
In described filament LED bulb, described LED light-emitting component is LED lamp bar, described bulb includes lamp holder, metal lamp holder it is fixed with below lamp holder, metal lamp holder is the most heat sink with outer, the lower end of metal lamp holder connects bulb housing, filling with inert gas in bulb housing, described transparent tube is located in bulb housing, its top is located on the inwall of metal lamp holder, and it is close to inwall, and so by the way of conduction of heat, heat can be dispersed by metal lamp holder, LED lamp bar is located on the transparent tube wall below metal lamp holder or groove.
In described filament LED bulb, described metal lamp holder is aluminium alloy lamp socket.
In described filament LED bulb, described noble gas is the neon of half atm higher.
Compared with prior art, the present invention uses transparent tube as interior heat sink, LED light-emitting component is contained in transparent tube, the heat making many LED light-emitting components produce is dispelled the heat by compound modes such as conduction of heat, heat radiation and thermal convection currents, reach the effect of cooling, solve the problem that convention heat sink heat radiation is bad, the photoelectricity indexs such as the luminous efficiency of filament LED bulb of use transparent assembling, light sustainment rate and life-span has been effectively ensured.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the bulb that tubular elementary LED is made.
Fig. 2 is a kind of structural representation of transparent tube.
The another kind of structural representation of Fig. 3 transparent tube.
The another kind of structural representation of Fig. 4 transparent tube.
The another kind of structural representation of Fig. 5 transparent tube.
Fig. 6 is a kind of structural representation of the bulb that LED lamp bar is made.
Detailed description of the invention
Referring to the drawings, the concrete technical scheme of the present invention is further described, in order to those skilled in the art is further understood that the present invention, and does not constitute the restriction to its right.
Embodiment 1: as it is shown in figure 1, the filament LED bulb being arranged on for tubular elementary LED in the transparent tube having semi-circular groove implements schematic diagram.Transparent tube is made up of quartz glass tube, hereinafter referred to as quartz transparent tube.A kind of filament LED bulb, including lamp holder 6, plastic lamp base 4 and glass bulb shell 7, lamp holder 6 is fixed on plastic lamp base 4 upper end, and glass bulb shell 7 is arranged on plastic lamp base 4 lower end, drives on-chip power in lamp holder 6.LED light-emitting component is tubular elementary LED1, and the external diameter of tubular elementary LED1 is 3.2mm, a length of 53mm.And have the quartzy transparent tube 2 of semi-circular groove 11 as shown in Fig. 2,3,4 and 5, the external diameter of quartz transparent tube 2 is 25mm, wall thickness 2.0mm, a length of 69mm, uniformly have 8 semi-circular grooves 11 of a diameter of 3.25mm along its circumferential direction, tubular elementary LED1 embeds in semi-circular groove 11.Quartz transparent tube 2 upper end is heat sink in making in inserting lamp socket 4 by metal ring 3, lamp socket 4 inner chamber is divided into inner cavity chamber and exocoel two parts by quartz transparent tube 2, some passages are respectively provided on the lamp socket wall that inner cavity chamber is corresponding with exocoel, a circle can be provided with uniformly along lamp socket 4 circumferential direction, passage lamp socket wall on corresponding with inner cavity chamber is 5', its a diameter of 2.5mm, passage lamp socket wall on corresponding with exocoel is 5, a diameter of 3mm.Above-mentioned metal ring 3 is aluminum alloy materials, the thickness of metal ring 3 is 1.2mm, internal diameter is 25.2mm, the external diameter of metal ring 3 closely cooperates with the inwall of lamp socket 4, the convection holes 10 of connection transparent tube 2 outer space and lamp socket exocoel is had in metal retainer ring 3, a diameter of 2.5mm of convection holes 10, convection holes 10 is uniformly provided with 16 along the circumference of metal ring 3.The inner ring surface of metal ring 3 is provided with and tubular elementary LED1 8 semicircle fixed grooves 9 one to one.8 tubular elementary LED1 are arranged on along the axially arranged groove 11 of the outer surface of transparent tube 2.Second half correspondence of 8 tubular elementary LED1 snaps in 8 fixed grooves 9 of Al-alloy metal annulus 3 fixing, a diameter of 3.25mm of fixed groove 9.
The lower end of 8 tubular elementary LED1 by every 2 formed series connection, the most parallel with one another in the way of the mode that is connected is connected with the outfan of LED drive power, be pressed into the inner side of quartzy transparent tube 2 after 4 series connection end 8 varuss, and then secure the lower end of tubular elementary LED1.
After lighting a lamp, in quartz transparent tube 2, outside forms the temperature difference, and then cold air enters into lamp socket inner cavity chamber from passage 5', it is flowed into again in the inner space of quartz transparent tube 2, enters the outer space of quartz transparent tube 2 from the lower end of quartz transparent tube 2, the heat that outside tubular elementary LED1 sends is taken away and flows out from convection holes 10, lamp socket exocoel, passage 5, cold air constantly covers, hot-air continuously outflows, thus forms thermal-convection loop, enters thus reduces the temperature rise of LED light-emitting component.
After tested, the power 5.7W of this filament LED bulb, luminous flux is 667.3 lumens, luminous efficiency 117.07 lumens/watt, correlated color temperature 2651k, color rendering index 81.6, the incandescent lamp bulb of alternative 60w.
Embodiment 2: as shown in Figure 6, a kind of filament LED bulb, use the LED lamp bar of COB encapsulation as LED light-emitting component, the external diameter of LED lamp bar is 2.2mm, a length of 45mm.Described bulb includes lamp holder, is fixed with aluminium alloy lamp socket 12 below lamp holder, and the lower end of aluminium alloy lamp socket 12 connects bulb housing, the neon of half atmospheric pressure it is filled with in bulb housing, described transparent tube is located in bulb housing, and the inwall of its top and aluminium alloy lamp socket 12 is close to, and edge can be connect by gluing.The wall thickness of transparent tube is 3.5mm, a length of 75mm, and insertion depth is about 25mm, and the transparent tube below metal lamp holder is provided with 12 semi-circular grooves of a diameter of 2.25mm.12 LED lamp bar transparent silica gel are pasted onto in semi-circular groove.In the way of 12 LED lamp bar form series connection by every 2,6 series connection ends 8 are positioned at the upper end of quartz transparent tube 2, and the parallel connection respectively of the lower end of the LED lamp bar of 6 series connection is that power input electrically connects with driver output end, drives on-chip power in lamp holder 6.
The heat that LED lamp bar luminescence produces passes in transparent tube, and heat is distributed by aluminium alloy lamp socket 12 by transparent tube by conduction of heat and thermal-radiating mode, thus lowers the temperature to LED lamp bar.
After tested, the power 9.0W of this filament LED, luminous flux is 1011 lumens, luminous efficiency 112.3 lumens/watt, correlated color temperature 2657k, color rendering index 81.5, the incandescent lamp bulb of alternative 100w.
Claims (10)
1. a filament LED bulb, it is characterized in that: include interior heat sink, described interior heat sink it is made up of transparent tube, the outer surface of transparent tube or inner surface are provided with LED light-emitting component, described LED light-emitting component is tubular elementary LED, described bulb includes lamp holder, lamp socket and bulb housing, lamp holder is fixed on lamp socket upper end, bulb housing is arranged on lamp socket lower end, lamp socket is provided with some passages, the upper end of described transparent tube is inserted in lamp socket, lamp socket inner chamber is divided into inner cavity chamber and exocoel two parts, aforementioned passage is respectively provided on the lamp socket wall that inner cavity chamber is corresponding with exocoel, the convection holes of transparent tube outer space and lamp socket exocoel it is communicated with between described transparent tube and inboard wall of lamp holder, tubular elementary LED is along the outer surface of transparent tube or being axially mounted on transparent tube wall or groove of inner surface.
Filament LED bulb the most according to claim 1, it is characterized in that: described LED light-emitting component is connected in the way of every two series connection are the most parallel with one another, the electric wire of every two series connection turns down and on the tube wall of close-fitting transparent pipe to the another side of LED light-emitting component installed surface, with the lower end of fixing LED light-emitting component.
Filament LED bulb the most according to claim 1, it is characterised in that: described transparent tube is glass tubing or plastic tube, and the aperture of transparent tube is 2-200mm, and wall thickness is 0.1-10mm, a length of 10-300mm.
Filament LED bulb the most according to claim 1, it is characterised in that: described transparent tube is cone-shaped or column, generally circular in shape, oval, the triangle of its cross section or polygon.
Filament LED bulb the most according to claim 1, it is characterised in that: the surface of described transparent tube has the groove equal with LED light-emitting component quantity, and LED light-emitting component embeds in groove.
Filament LED bulb the most according to claim 5, it is characterised in that: described groove is uniformly distributed along the circumferential direction of transparent tube.
Filament LED bulb the most according to claim 5, it is characterised in that: described groove be shaped as circular arc, trapezoidal or rectangle, when groove is circular arc, its a diameter of 0.3mm～15mm, and slightly larger than the external diameter of LED light-emitting component.
Filament LED bulb the most according to claim 1, it is characterised in that: described lamp holder is connected with external power, and lamp holder is connected with total electric wire of tubular elementary LED stretched in lamp socket built with LED drive power, the outfan of LED drive power.
Filament LED bulb the most according to claim 1, it is characterized in that: the upper end of described transparent tube is inserted in lamp socket by metal ring, at the outer ring surface of metal ring and lamp socket lower port, inwall closely cooperates, its inner ring surface then outer wall with transparent tube closely cooperates, and described convection holes is located on metal ring.
Filament LED bulb the most according to claim 9, it is characterised in that: when described tubular elementary LED is located on transparent tube outer surface, the inner ring surface of above-mentioned metal ring is provided with and tubular elementary LED fixed groove one to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289810.3A CN104033774B (en) | 2014-06-25 | 2014-06-25 | A kind of filament LED bulb |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410289810.3A CN104033774B (en) | 2014-06-25 | 2014-06-25 | A kind of filament LED bulb |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104033774A CN104033774A (en) | 2014-09-10 |
| CN104033774B true CN104033774B (en) | 2016-08-17 |
Family
ID=51464666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410289810.3A Active CN104033774B (en) | 2014-06-25 | 2014-06-25 | A kind of filament LED bulb |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104033774B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266097A (en) * | 2014-10-07 | 2015-01-07 | 陈广明 | LED filament structure capable of improving transmittance |
| CN105221963A (en) * | 2015-10-20 | 2016-01-06 | 管毅 | A kind of LED with ventilation port |
| CN105465635A (en) * | 2016-01-07 | 2016-04-06 | 莆田康布斯光电科技有限公司 | LED (Light Emitting Diode) lamp |
| CN105588016B (en) * | 2016-03-11 | 2018-07-24 | 贵州光浦森光电有限公司 | A kind of LED filament light bulb with heat slinger |
| JP6997912B1 (en) | 2019-01-24 | 2022-01-18 | シグニファイ ホールディング ビー ヴィ | LED filament configuration |
| US10605413B1 (en) | 2019-02-28 | 2020-03-31 | Ledvance Llc | Light emitting diode filament lamp with V-geometry |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM406136U (en) * | 2011-01-31 | 2011-06-21 | Liquidleds Lighting Corp | Standing-pipe-type LED bulb |
| CN203215314U (en) * | 2013-01-11 | 2013-09-25 | 浙江锐迪生光电有限公司 | LED bulb capable of emitting light in all-dimensional mode |
| CN203231146U (en) * | 2013-05-14 | 2013-10-09 | 江苏华英光宝科技股份有限公司 | Full-angle lighting LED (light emitting diode) light tube |
| CN203628361U (en) * | 2013-12-10 | 2014-06-04 | 泉州市金太阳照明科技有限公司 | LED bulb |
| CN204026210U (en) * | 2014-06-25 | 2014-12-17 | 连云港晶德照明电器有限公司 | Filament LED bulb |
-
2014
- 2014-06-25 CN CN201410289810.3A patent/CN104033774B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104033774A (en) | 2014-09-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104033774B (en) | A kind of filament LED bulb | |
| CN103307464B (en) | A kind of LED bulb | |
| CN105387355A (en) | Parallel-connection type light emitting diode (LED) illuminants and LED illuminating lamp | |
| CN102313173B (en) | LED light source in incandescent shaped bulb | |
| CN101818866B (en) | Led lamp | |
| CN105927950A (en) | LED filament with thermal radiation material and LED filament bulb | |
| US20110232886A1 (en) | Heat dissipation housing for led lamp | |
| KR20110135851A (en) | Lamp with at least one light-emitting diode | |
| CA2830284C (en) | Liquid-cooled led illuminating lamp | |
| CN104132261B (en) | A kind of high-efficient heat-dissipating LED lamp | |
| CN204026210U (en) | Filament LED bulb | |
| CN204785745U (en) | Ball bubble lamp | |
| CN1995809A (en) | High-power energy-saving LED light | |
| CN203810164U (en) | Thermal-conductive LED light emitting body and LED lighting lamp | |
| CN101694290A (en) | LED lamp liquid radiator | |
| CN201439878U (en) | LED fluorescent tube | |
| CN203010323U (en) | LED (Light-Emitting Diode) energy-saving lamp with U-shaped lamp tube | |
| CN208566241U (en) | A kind of LED corn lamp | |
| CN103899943A (en) | LED energy-saving lamp with U-shaped lamp tube | |
| CN202302843U (en) | Bulb with high-power LED light source | |
| CN205782758U (en) | LED filament with thermal-radiating material and LED pompon bubble | |
| CN201373262Y (en) | LED fluorescent lamp | |
| CN201074744Y (en) | LED bar-shaped lamp with cooling function | |
| CN202203719U (en) | A surface mount type LED fluorescent lamp | |
| CN203892929U (en) | U-shaped LED (Light Emitting Diode) luminous body and LED illuminating lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |