CN207146010U - LED filament lamp without metal heat sink - Google Patents
LED filament lamp without metal heat sink Download PDFInfo
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- CN207146010U CN207146010U CN201721068696.7U CN201721068696U CN207146010U CN 207146010 U CN207146010 U CN 207146010U CN 201721068696 U CN201721068696 U CN 201721068696U CN 207146010 U CN207146010 U CN 207146010U
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- led filament
- bearing part
- protective cover
- fan
- lamp
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Abstract
The utility model provides a kind of LED filament lamp without metal heat sink, and the LED filament lamp includes LED filament, lamp holder；Bearing part, the bearing part carry the LED filament, and the bearing part is cylindrical in shape, both ends open, and uses nonmetallic materials；Protective cover, the protective cover are fixed on the outside of the LED filament, and through the emergent light of the LED filament；Fan, the fan are arranged on one end of bearing part, feed gas into the inside of the bearing part, LED filament work caused by heat discharged from the inside of the bearing part.The utility model have the advantages that good heat dissipation, luminous efficiency are high, cost is low, without metal heat sink, in light weight, thousands of to tens of thousands of lm great power LED filament lamp is can be made into, for replacing Metal halogen lamp, sodium vapor lamp, high-pressure sodium lamp, energy-saving fluorescent lamp and for road lighting etc..
Description
Technical field
LED is the utility model is related to, more particularly to a kind of LED without metal heat sink of high light flux active heat removal
Filament lamp.
Background technology
The LED filament lamp of prior art arrives 2000Lm middle low power lamps mainly for the manufacture of tens, is also difficult to be made thousands of
To tens of thousands of Lm high-power high-luminous flux lamp.
High light flux high-powered LED lamp, such as 10KLm level lamps of prior art, be all with high-power LED chip directly or
It is pasted onto on a metal heat sink with radiating fin by a MPCB (metal-based circuit board), produces during LED operation
Heat diffused to through radiating fin in air；Because lamp power is big, caused heat is big, required metal heat sink is very big very
Weight, causes that whole lamp weight is big, volume is big, cost is high.
The another kind of high light flux LED of prior art is metal heat sink power-up fan, and fan accelerates metal heat sink
Radiating fin between air flow, to accelerate to radiate, the volume and weight of whole lamp can be reduced；This fan forced air scatters
The effect of heat is much better than simple finned metal heat sink；The fin density of some radiators of prior art is very high, fin
Area is very big, it appears that area of dissipation is very big, and radiating effect should be fine, if but in fact, the gas between fin does not flow
It is dynamic, because stationary gas is good heat guard, therefore there is the circle for only there was only radiator periphery of actual contribution to radiating, in it
The radiating fin in portion performs practically no function；If plus a fan, make the air flow between fin, its radiating effect will significantly improve；Mesh
It is preceding to have there is this kind of product selling；But its noise and life problems can be typically worried fan, user, in fact, flat
The development that small radiator fan needs with the CPU of the mobile devices such as tablet personal computer radiating, the problems such as noise and life-span all
There is good improvement.
The high light flux LED of this two classes prior art is required for the metal heat sink with fin, and radiator fins are sudden and violent
In atmosphere, the pollution layers such as laying dust angstrom oil gas are assembled on long-term use of, fin surface to dew, are reduced the radiating effect of fin, are influenceed LED
The service life of lamp, particularly in outdoor occasions such as road lightings.
Alternatively existing Metal halogen lamp, sodium vapor lamp etc., its advantage are that have more to the high light flux LED of this two classes prior art
The luminous efficiency of long service life, higher colour rendering index and Geng Gao, can start, without waiting for about at once after lamping on and off
Start after 10 minutes, illuminated available for factory building, hypermarket, hall, square, road etc..
The high light flux LED of this two classes prior art has been used for road lighting, and street lamp, garden lamp etc. is made；But
For being required for bulky metal heat sink, it is difficult to standardize, one sample of a factory, maintenance replacing can not be as sodium vapor lamp, bulb
Be broken more to change the bulb at the scene；Meanwhile at present this kind of LED cost is too high, weight is too big, actual life not
Enough ideals, promote slow.
In addition, this existing two classes high light flux LED is all to be pasted onto on metal heat sink to make with high-power LED chip
Light extraction solid angle into, LED chip is both less than 2 π, LED can not comprehensive 4 π light extractions, the luminous efficiency of lamp is generally less than
100Lm/W。
Utility model content
In order to solve the deficiency in above-mentioned prior art, the utility model provides a kind of good heat dissipation effect, cost
Low, the high LED filament lamp without metal heat sink of luminous efficiency.
The purpose of this utility model is achieved through the following technical solutions：
A kind of LED filament lamp without metal heat sink, the LED filament lamp include LED filament, lamp holder；The LED
Silk lamp further comprises：
Bearing part, the bearing part carry the LED filament, and the bearing part is cylindrical in shape, both ends open, and use non-gold
Belong to material；
Protective cover, the protective cover are fixed on the outside of the LED filament, and through the emergent light of the LED filament；
Fan, the fan feed gas into the inside of the bearing part, LED filament work caused by heat from described
The inside discharge of bearing part.
Compared with prior art, the utility model have the advantage that for：
1. good heat dissipation effect.
Fan is fed gas into tubular bearing part, so as to be conducted by LED filament to the bearing part (table of whole bearing part
Face is the radiating surface of LED filament) heat take away, and discharge bearing part；Meanwhile gas also purges the outer wall of bearing part, from
And heat caused by LED filament is taken away, good heat dissipation effect；Further, gaseous exchange and conduction are without source heat-dissipating, and radiating effect is more
It is good, thousands of to tens of thousands of Lm high light flux LED filament lamp is can be made into, replaces Metal halogen lamp, sodium vapor lamp, high-pressure sodium lamp, high-power fluorescence
Electricity-saving lamp etc., illuminated for factory building, hypermarket, hall, square, road etc.；
2. luminous efficiency is high.
LED filament and LED filament lamp are 4 π light extractions, and the light that LED chip is sent can be nearly all emitted without being blocked,
LED external quantum efficiency is high, and the luminous efficiency of filament lamp is high, and its efficiency is higher by more than 30% than the LED of the π light extractions of prior art 2；
It is 3. simple in construction, cost is low.
Without bulky metal heat sink, the in light weight of light fixture, cost are low；The fan of active heat removal is connected with filament, and
In parallel with voltage-stabiliser tube, without individually being powered with transformer, the voltage of the voltage-stabiliser tube is smaller than fan rated voltage, noise is small,
Service life is long, efficiency high.
Brief description of the drawings
Referring to the drawings, disclosure of the present utility model will be easier to understand.Skilled addressee readily understands that
It is：These accompanying drawings are used only for illustrating the technical solution of the utility model, and are not intended to protection of the present utility model
Scope is construed as limiting.In figure：
Fig. 1 is the structural representation of the LED filament lamp of the utility model embodiment；
Fig. 2 is the circuit diagram of the LED filament lamp of embodiment of the present utility model.
Embodiment
Fig. 1-2 and optional embodiment of the present utility model is following description described how to instruct those skilled in the art
Implement and reproduce the utility model.In order to instruct technical solutions of the utility model, simplify or eliminate some conventional aspects.This
Art personnel should be appreciated that modification from these embodiments or replacement will be in the scope of the utility model.This area
Technical staff should be appreciated that following characteristics can combine to form multiple modifications of the present utility model in a variety of ways.Thus, originally
Utility model is not limited to following optional embodiments, and is only limited by claim and their equivalent.
Embodiment 1：
Fig. 1 schematically illustrates the structure letter of the LED filament lamp without metal heat sink of the utility model embodiment
Figure, as shown in figure 1, the LED filament lamp includes：
LED filament 2, the LED filament are 2 π or 4 π light extractions, and concrete structure and working method are the existing skills of this area
Art, it will not be repeated here；The LED filament 2 is serially connected through connecting line 12, in parallel or connection in series-parallel；
Bearing part 1, the bearing part are cylindrical in shape, two end openings, and use nonmetallic materials, such as use the glass of high thermal conductivity
Glass, ceramics and plastics etc., can be transparent, milky white, frosted, opaque or coloured, its shape can be pipe, it is bulb-shaped or its
Its shape；The LED filament is fixed on the inwall or outer wall of the bearing part；
Fan 3, the fan are arranged on one end of the bearing part, such as the bottom of bearing part；
Air ducting 7, the air ducting are arranged in bearing part, and in the downstream of fan on airflow direction；
The central closure of the air ducting, face being circumferentially with around the centrally disposed guiding of air ducting of air ducting
Piece, the end slope of the relatively described air ducting of the prerotation vane are set, and have gap between adjacent prerotation vane；Make in fan
Under, through tangential flowing of the air-flow along the bearing part inwall of air ducting, and spiral is upward, so that gas
Longer with the time of contact of bearing part inwall, correspondingly, heat exchanger time is longer, and the heat that gas is taken away is more；
Protective cover 4, the protective cover 4 wrap around and enclose the LED filament and bearing part, protect the LED filament with to
Keep off foreign impacts；There is through hole 5 at the top of the protective cover, as gas vent；Nearly fan one end of protective cover has at least one
Through hole 6 is as gas feed, its shape such as prolate rectangle, ellipse, to prevent the insects such as moth from entering；The He of protective cover 4
The top 8 of bearing part 1 contacts with each other fixation, between there is gap 9 to flow through gas；The protective cover is by glass, plastics or pottery
The material that porcelain etc. can pass through LED emergent light be made, and can be transparent, milky white, frosted, coloured or have decorative pattern, and its shape can be gold
The shapes such as halogen lamp, sodium vapor lamp, incandescent lamp or on demand design shape；
Driver 10, as shown in Fig. 2 the driver connects external power 17 through connecting line 16 by electric connector 11, and
Drive the fan and LED filament；One end of the electrode outlet line 13 at two ends of LED filament is directly connected to the defeated of driver 10
Go out, the other end reconnects the output of driver 10 through passing through fan 3；The fan 3 is connected with LED filament 2 while shunt regulator tube
18, also can shunt capacitance 19 again, to ensure its working stability, the voltage of the voltage-stabiliser tube 18 can be less than the rated voltage of fan 3,
Such as within low 30%, to ensure the low noise of fan 3 and have the long-life that can be matched with LED life.
The method of work according to the above-mentioned LED filament lamp without metal heat sink of the utility model embodiment, the work
Comprise the following steps as method：
(A1) fixed LED filament on the load bearing member lights, and emergent light passes through the protective cover；
(A2) heat caused by the LED filament is conducted to the bearing part, and the surface of whole bearing part is as LED filament
Radiating surface；
(A3) under fan effect, outside air enters in protective cover from gas feed, afterwards into the cylinder of both ends open
The inside of shape bearing part, and in the presence of air ducting, it is upward along the spiral inner wall of bearing part, by purging bearing part
Inwall and absorbing load bearing part heat, discharge bearing part air part from gas vent discharge protective cover, another part
Gap between bearing part and protective cover passes through, and purges the outer wall of LED filament and bearing part, so as to take away heat and lead to
Overprotection cover is transmitted to the external world.
Reached according to embodiment 1 and had an advantage that：The fan 3 is connected with LED filament 2, the operating voltage only 5-- of fan
12V, its operating voltage can be adjusted and set by the voltage-stabiliser tube 18 in parallel with fan 3, to ensure the low noise of fan and long-life；
The operating voltage of fan 3 is only a few percent of the voltage of filament 2, the power very little of consumption, and without individually give wind with transformer
Fan power supply, whole lamp efficiency high.Heat is conducted to bearing part caused by LED filament, and the air that the external world enters in protective cover flows into
In bearing part, the heat is taken away by conduction and convection current, and is partly discharged to the external world, partly between bearing part and protective cover
Gap enter bearing part on the outside of and protective cover between space in, take away the heat of LED filament and bearing part outer wall, and pass through
Protective cover rejects heat to the external world, and this partial air is finally returned back in bearing part；By modes such as various conduction, convection current by LED
Heat caused by silk is taken out of in protective cover in time, without metal heat sink, improves the luminous flux of whole lamp.
Embodiment 2：
The LED filament lamp without metal heat sink of the utility model embodiment, as different from Example 1：
1. as shown in figure 1, when if protective cover 4 is using the hard material such as glass or ceramics, protective cover 4 and electric connector 11
Between be provided with connector 15, through hole 6 is arranged on connector and/or protective cover；The connector is by plastics, ceramics or metal system
Into.
2. also there is gap between bearing part bottom and protective cover so that gap, LED filament and the bottom on bearing part top
Gap it is conllinear.The gas entered from the gap on top purges LED filament, and the gap for being then passed through bottom afterwards returns to bearing part
Inside, by containment of fluid flow to further increasing radiating effect.
Embodiment 3：
The LED filament lamp without metal heat sink of the utility model embodiment, as different from Example 1：
1. through hole is no longer set so that the space of closing is formed in protective cover on protective cover；
2. filled with gas in protective cover, such as air, nitrogen, helium or (hydrogen and helium) gaseous mixture.
The method of work according to the above-mentioned LED filament lamp without metal heat sink of the utility model embodiment, the work
Comprise the following steps as method：
(A1) fixed LED filament on the load bearing member lights, and emergent light passes through the protective cover；
(A2) heat caused by the LED filament is conducted to the bearing part, and the surface of whole bearing part is as LED filament
Radiating surface；
(A3) under fan effect, the gas in protective cover enters the inside of the tubular bearing part of both ends open, by blowing
The heat of the inwall of bearing part and absorbing load bearing part is swept, the heat for discharging the gas carrying of bearing part is conducted to outer by protective cover
Boundary；Gap of the gas between bearing part and protective cover passes through afterwards, and purges the outer wall of LED filament and bearing part, through gas
Body convection current and conduction, then the external world is transmitted to by protective cover.
Embodiment 4：
The LED filament lamp without metal heat sink of the utility model embodiment, as different from Example 1：
Protective cover no longer surrounds bearing part, and is integrally fixed at the bearing part, and the periphery in the LED filament, protects
LED is protected to avoid touching by mistake, and keeps out foreign impacts；Both ends open is spatially descended between protective cover and bearing part, with the external world
Connection.That is, bearing part is exposed in the external world.
The method of work according to the above-mentioned LED filament lamp without metal heat sink of the utility model embodiment, the work
Comprise the following steps as method：
(A1) fixed LED filament on the load bearing member lights, and emergent light passes through the protective cover；
(A2) heat caused by the LED filament is conducted to the bearing part, and the surface of whole bearing part is as LED filament
Radiating surface；
(A3) under fan effect, outside air enters the inside of the tubular bearing part of both ends open, is carried by purging
The inner and outer wall of part, and the space between protective cover and bearing part passes through, so as to take away heat and be dispersed into air；Together
When, heat is rejected heat in air by modes such as heat radiation, conduction.
In the above-described embodiments, in order to accomplish the comprehensive light extraction of LED filament lamp, the bearing part use can pass through LED
The material of silk emergent light, such as glass, ceramics, plastics, while the π light extractions of LED filament 4；Certainly, this mode is not LED filament
The sole mode of the comprehensive light extraction of lamp, e.g., the π light extractions of LED filament 4, bearing part is light tight, but LED filament is densely arranged on institute
State the outer wall of bearing part.
Claims (8)
1. a kind of LED filament lamp without metal heat sink, the LED filament lamp includes LED filament, lamp holder；It is characterized in that：
The LED filament lamp further comprises：
Bearing part, the bearing part carry the LED filament, and the bearing part is cylindrical in shape, both ends open, and uses non-metallic material
Material；
Protective cover, the protective cover are fixed on the outside of the LED filament, and through the emergent light of the LED filament；
Fan, the fan feed gas into the inside of the bearing part, LED filament work caused by heat from the carrying
The inside discharge of part.
2. LED filament lamp according to claim 1, it is characterised in that：The LED filament is fixed on the interior of the bearing part
Wall and/or outer wall.
3. LED filament lamp according to claim 1, it is characterised in that：The protective cover is fixed on the bearing part, institute
State protective cover and bearing part seals against each other；Or, the upper and lower and ft connection in the space formed between protective cover and bearing part.
4. LED filament lamp according to claim 1, it is characterised in that：The protective cover wraps around and encloses the bearing part
And LED filament；There is gap between the top of the bearing part and protective cover.
5. LED filament lamp according to claim 4, it is characterised in that：Have between the bottom of the bearing part and protective cover
There is gap, it is conllinear in the gap at the bearing part both ends and LED filament.
6. LED filament lamp according to claim 1, it is characterised in that：The LED filament lamp further comprises：
Voltage-stabiliser tube in parallel, electric capacity with fan, fan and the LED filament series connection；The voltage ratio fan of the voltage-stabiliser tube is specified
Within voltage low 30%.
7. LED filament lamp according to claim 4, it is characterised in that：The LED filament lamp further comprises：
Connector, the connector are used to connect the protective cover and lamp holder；There is air outlet slit, the guarantor on the protective cover
There is air intlet on shield and/or connector；The air intlet, the inside of bearing part and air outlet slit form air and led to
Road；The driver of LED filament and fan is arranged in lamp holder and connector or external.
8. LED filament lamp according to claim 1, it is characterised in that：The LED filament lamp further comprises：
Air ducting, the air ducting are arranged on the fan downstream, are produced by the fan and pass through the air-flow
Inwall tangential screw flowing of the air-flow of guider along the bearing part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721068696.7U CN207146010U (en) | 2017-08-24 | 2017-08-24 | LED filament lamp without metal heat sink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721068696.7U CN207146010U (en) | 2017-08-24 | 2017-08-24 | LED filament lamp without metal heat sink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207146010U true CN207146010U (en) | 2018-03-27 |
Family
ID=61669890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721068696.7U Active CN207146010U (en) | 2017-08-24 | 2017-08-24 | LED filament lamp without metal heat sink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207146010U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314257A (en) * | 2017-08-24 | 2017-11-03 | 浙江锐迪生光电有限公司 | LED filament lamp and its method of work without metal heat sink |
| WO2021160078A1 (en) * | 2020-02-11 | 2021-08-19 | 葛铁汉 | Omni-directional light-emitting light cover and light bulb having same |
-
2017
- 2017-08-24 CN CN201721068696.7U patent/CN207146010U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314257A (en) * | 2017-08-24 | 2017-11-03 | 浙江锐迪生光电有限公司 | LED filament lamp and its method of work without metal heat sink |
| CN107314257B (en) * | 2017-08-24 | 2023-09-19 | 浙江锐迪生光电有限公司 | LED filament lamp without metal radiator and working method thereof |
| WO2021160078A1 (en) * | 2020-02-11 | 2021-08-19 | 葛铁汉 | Omni-directional light-emitting light cover and light bulb having same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ANHUI HANGKE PHOTOELECTRIC Co.,Ltd. Assignor: ZHEJIANG LEDISON OPTOELECTRONICS Co.,Ltd. Contract record no.: X2020330000015 Denomination of utility model: LED filament lamp without metal radiator and working method thereof Granted publication date: 20180327 License type: Common License Record date: 20200401 |