CN102292594A - Led lamp system - Google Patents
Led lamp system Download PDFInfo
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- CN102292594A CN102292594A CN2009801550862A CN200980155086A CN102292594A CN 102292594 A CN102292594 A CN 102292594A CN 2009801550862 A CN2009801550862 A CN 2009801550862A CN 200980155086 A CN200980155086 A CN 200980155086A CN 102292594 A CN102292594 A CN 102292594A
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- led lamp
- lamp system
- radiator
- led
- support unit
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
- F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/507—Cooling arrangements characterised by the adaptation for cooling of specific components of means for protecting lighting devices from damage, e.g. housings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
- F21V29/77—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
- F21V29/773—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section the planes containing the fins or blades having the direction of the light emitting axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V3/00—Globes; Bowls; Cover glasses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
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- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to a LED lamp system comprising: a heat sink (30), a LED assembly (20) thermally coupled to the heat sink (30), an air inlet (Al) and an air outlet (AO), the air inlet (Al) and the air outlet (AO) being positioned for obtaining an air flow (115) along the heat sink (30), wherein the LED assembly (20) has a light-emitting side in operational use, wherein the air flow (115) is caused by heat generated by the LED assembly (20), the air inlet (Al) and the air outlet (AO) being located substantially in plane with the LED assembly (20) or on a back side of the LED assembly (20), wherein the back side is defined as being opposite to the light-emitting side. The LED lamp system in accordance with the invention is a lighting system which makes use of passive cooling only. The cooling mechanism relies on the airflow that runs along the heat sink which air flow is sustained by the heat generated by the heat sink itself. No additional power is required.
Description
Technical field
The present invention relates to a kind of LED lamp system, comprising: a radiator; A LED assembly, its heat is connected to described radiator; Air intake and air outlet slit, described air intake and air outlet slit are positioned to obtain the air stream along described radiator.
Background technology
Majority of illumination product in special use and the household application market all is made up of incandescent lamp and gas-discharge lamp.Critical piece in these lamps has the efficient of 10 to 70 lumens/watt.In addition, most of light fixtures have the relatively short life-span of 500 to 5000 working hours, and this means needs often to change.
The LED technology of a kind of solid-state illumination (SSL) is fast-developing, especially in signal illumination (traffic lights, supervisory lamp etc.) application, and is used for small compact light source (for example reading lamp, flash lamp or ornament lamp).Since such as with the technology barrier of not matching of existing lighting device/light fixture etc., LED also fails to develop into full ripe light source.
The market leader of lantern fair field focuses on development LED illumination in the new system, pays close attention to the traditional lighting technology (incandescent lamp, fluorescent lamp, energy-saving bulb) in the market, back simultaneously.As if they do not recognize that the LED illumination also can become the suitable substitute of existing light source in market.
When being converted to other technology (such as the LED technology) from traditional lighting, compatibility has played important function.Though economical and ecological aspect can benefit because at lighting with install and dropped into a large amount of investments, crossing new lighting engineering has very big resistance.In other words, only when new lighting engineering and existing lighting engineering can be replaced fully, new lighting engineering just can obtain market in a short time rapidly and accept.Even the outward appearance of new illuminating product also must be similar to old illuminating product.Therefore need a kind of eco-friendly lighting engineering that can substitute current illuminator one to one.
Currently cause by following aspect at the compatibility issue aspect the improvement threshold (retrofit-range):
---the physical space that is used for parts is limited, and also, new illuminating product need be realized in existing system, and therefore need have the size identical with current illuminating product;
---the profile of new product must be similar to old product.Before the terminal use was ready to accept new product, the profile of new product must obtain terminal use's approval.This has proposed harsh design restriction to the LED illuminating product on the one hand.
Owing to, especially sternness is arranged in most important several respects of LED lamp on the one hand, also be the cooling of LED to improving the above-mentioned extra demand of system.Have better efficient though LED compares with traditional lighting, LED has produced considerable heat.Existing cooling technology is unsuitable for absorbing the heat that is produced by LED.This may be because described technology can not be integrated in the lamp (because extra constraint that preamble is mentioned), and perhaps because described cooling technology constitutes active cooling, and this is undesirable in system at present.
US2005/0111234A1 discloses the LED lamp with such active cooling.This LED lamp comprises a shell, and this shell has and the identical form element of conventional incandescent lamp bulb (for example bulb of PAR type).This LED light fixture has optical reflector, the light that it places in the shell and guiding is launched from one or more LED.Described optical reflector and shell define a space, and this space is used to guide air to cool off this device.LED is installed on the radiator that places within the shell.Fan moves air on radiator, and makes air pass through the space that is limited by described optical reflector and described shell.This shell comprises one or more holes, and it is as air intake or steam vent.The one or more holes that limited at the shell aperture place by described optical reflector and shell are used as exhaust or air admission hole.
The problem of the LED lamp that this is known is that the cooling of LED is unsatisfactory, is not all satisfactory in all cases at least.The working life of LED lamp has been shortened in this non-optimum cooling.
Summary of the invention
A target of the present invention is to provide to be had better LED cooling and therefore has more long-life LED lamp system.
The present invention is defined by independent claims.Dependent claims defines advantageous embodiment.
In first aspect, the present invention relates to the LED lamp system, comprising: radiator; The LED assembly, its heat is connected to radiator; Air intake and air outlet slit, described air intake and described air outlet slit are positioned to obtain the air stream along radiator, wherein said LED assembly has emission side in work is used, wherein said air stream is to be caused by the thermal conductance that described LED assembly produces, described air intake and described air outlet slit are basic with described LED assembly coplane or be positioned at the dorsal part of described LED assembly, and it is relative with described emission side that wherein said dorsal part is defined as.
Hereinafter will explain effect according to the feature of LED lamp system of the present invention.Because the heat between these appropriate sections of LED lamp system connects, the heat that is produced by at least one LED is passed to radiator.Described LED lamp system also comprises an air intake and an air outlet slit, and they are arranged to obtain the air stream along radiator, and described air stream is caused by described thermal conductance.Yet air intake and air outlet slit are placed so that they are positioned at the dorsal part of at least one LED, and it is relative with the emission side in work is used that wherein said dorsal part is defined as.By described air intake and described air outlet slit being placed as basic and at least one LED coplane, or be positioned at the dorsal part of at least one LED, guaranteed that flowing less underground heat by the air that thermal conductance causes is connected to described at least one LED itself.In other words, described at least one LED is less by air stream (again) heating, and this air stream is heated when the described radiator of cooling.Therefore the junction temperature of described at least one LED is lower, and this working life to the LED lamp system has positive impact.
Must be noted that in known LED lamp, above-mentioned effect does not reach.In known LED lamp system, described air intake and air outlet slit are arranged to (warming up) air stream and flow along optical reflector fully, thereby have heated reflector and also heated LED.This will cause the junction temperature of LED higher, therefore make that the working life of known LED lamp is shorter.
Be different from according to LED lamp system of the present invention, it also is that motor and fan come cooling radiator that known LED lamp needs active element.Yet in many illuminations were used, such active element was undesired.In order to be installed in the lamp, motor and fan must miniaturizations.Therefore the parts of such miniaturization not only make lamp more complicated (more expensive), and negative effect the life-span of lamp because the more multi-part of lamp can damage.Another shortcoming is, at the duration of work of known LED lamp, and the noise that motor and fan produce.Should also be noted that in known LED lamp, when the active element irregular working, described cooling effect complete obiteration.
In an embodiment of LED lamp system according to the present invention, described air intake is moved on the direction vertical with emission side with described air outlet slit.Air intake and air outlet slit are moved to along the longitudinal direction (perpendicular to the direction of emission side) like this, effective cooling is being provided when the LED lamp system is directed up or down with respect to the edge, ground.In work was used, the heating of LED assembly was positioned near the air the radiator.Warm/hot-air is lighter than cold air.In order to facilitate along the ascending air of radiator stream (when this lamp is oriented at up or down direction), described air intake and described air outlet slit must be arranged up and down, as the situation of the present embodiment.Must be noted that, when the LED lamp system is oriented at rightabout (from upwards becoming downwards, perhaps from becoming downwards upwards), described air intake and described air outlet slit function of exchange.However, in this embodiment, described cooling effect all exists at both direction.
An embodiment according to LED lamp system of the present invention comprises a support unit, it is used to be connected to radiator so that form an air path between the dorsal part of radiator and described support unit, and wherein said air path links to each other with described air outlet slit and described air intake.The air path that links to each other with described air outlet slit and air intake is provided, and this has further strengthened the cooling effect of LED lamp system.
An embodiment according to LED lamp system of the present invention comprises a big envelope, and it is arranged in described support unit on every side to form air duct between air intake and air outlet slit, and wherein said air intake and air outlet slit are respectively formed at the two ends of big envelope.The combination of described support unit and the big envelope around the described support unit provides a kind of embodiment easily of the air duct between air intake and air outlet slit.Equally, air intake and air outlet slit advantageously are respectively formed at the two ends of big envelope.For the formation of air outlet slit and air intake, can adopt many variations.At this specification hereinafter, will the more details of these variations be described.
In an embodiment of LED lamp system according to the present invention, described radiator has disc-shape, and wherein said LED assembly is placed in the middle with respect to described radiator.The radiator of circular profile is convenient to be fit to the conventional light bulb shape.
In an embodiment of LED lamp system according to the present invention, described radiator comprises a kind of material, and this material is selected from: aluminium, brass, bronze, duralumin, copper, filled gold and silver-plated metal.These materials are particularly advantageous, because they have following character, such as: in light weight, thermal conductive resin (this helps the radiator function) and low cost.
In an embodiment of LED lamp system according to the present invention, described support unit has cylinder form.The support unit of cylinder form is convenient to be fit to the conventional light bulb shape.
In an embodiment of LED lamp system according to the present invention, described support unit comprises a kind of material, and this material is selected from: aluminium, brass, bronze, duralumin, copper, filled gold and silver-plated metal.These materials are particularly advantageous, because they have following character, such as: in light weight, thermal conductive resin (this helps the radiator function) and low cost.
In an embodiment of LED lamp system according to the present invention, described support unit is provided with the wing, the described wing is distributed in around the periphery of cylinder form and extends on the direction of the longitudinal axis that is parallel to described cylinder form, is used to increase the swept area of described support unit and is used to limit secondary air duct with direct airflow.Around the periphery of support unit the wing is set, has increased the swept area of support unit, this helps the cooling LED lamp system.Described support unit is by described radiators heat, and from this angle, described support unit is as another radiator.
In an embodiment of LED lamp system according to the present invention, described big envelope has cylinder form.The big envelope of cylinder form is convenient to be fit to the conventional light bulb shape.
In an embodiment of LED lamp system according to the present invention, the radius of the cylinder form of described big envelope increases gradually towards an end.This measure makes big envelope be fit to the profile of conventional light bulb better.
In an embodiment of LED lamp system according to the present invention, described big envelope comprises a kind of material, and described material is selected from: aluminium, brass, bronze, duralumin, copper, filled gold and silver-plated metal.These materials are particularly advantageous, because they have following character, such as: in light weight, thermal conductive resin (this helps the radiator function) and low cost.
In an embodiment of LED lamp system according to the present invention, described radiator and described support unit comprise identical materials.Use identical materials to have following benefit to these parts: the thermal resistance between these two parts is lower, so heat is better from the heat sink to the support unit.When big envelope also was same material, benefit was that it is also as an effective radiator (thereby having obtained three part radiators efficiently).
In an embodiment of LED lamp system according to the present invention, wherein support unit and big envelope be by a thermal insulation part mechanical connection, described thermal insulation part be arranged on described support unit with the relative opposite side of a side that is provided with radiator.In this embodiment, described big envelope and support unit are spaced apart, and only by thermal insulation part and support unit mechanical connection.Described thermal insulation part has limited the heat conduction from the support unit to the big envelope.Therefore, from the support unit to the big envelope, almost has only heat transmission by radiation.Sub-fraction heat conduction (by the air between support unit and big envelope) by convection current is also arranged, but this mechanism works hardly.In a word, in this embodiment, heat from the support unit to the big envelope is transmitted by strict restriction, and this keeps big envelope cool, thereby can touch big envelope and do not cause scalding.
In an embodiment of LED lamp system according to the present invention, described air intake and/or described air outlet slit are included in outer a plurality of openings of placing distribution of described LED lamp system.The benefit of this embodiment is that air stream will be distributed on the LED lamp system more equably, and this causes more uniform cooling effect.In addition, another benefit of this embodiment is that this cooling mechanism (air that is caused by the rising hot-air flows) now also is applicable to be positioned as with respect to ground and is horizontal LED lamp system.In specification, will explain this point in more detail subsequently.
An embodiment according to LED lamp system of the present invention comprises a glass bulb, and it is connected to described radiator and covers the LED assembly fully.The benefit of this embodiment is, the LED assembly better with the heated air flow heat insulation of leaving air outlet slit.Therefore, the temperature of LED assembly keeps lower (and the life-span of LED lamp system is longer).
An embodiment according to LED lamp system of the present invention also comprises another glass bulb, and it is arranged within the described glass bulb that is connected to described radiator, and covers the LED assembly fully.Obtained better heat insulation with described LED assembly.
In an embodiment of LED lamp system according to the present invention, described glass bulb and/or described another glass bulb comprise diffuser material, are used for making from the light diffusion of described LED assembly emission in work.In an embodiment of described LED lamp system, described glass bulb is light diffusing in work is used.These two advantageously combinations of embodiment produce better light scattering effect, in addition, and also better with the air insulation of described LED assembly and heating.
In an embodiment of LED lamp system according to the present invention, described LED comprises a LED placed in the middle.The benefit of this embodiment is that power consumption is low.
In an embodiment of LED lamp system according to the present invention, described LED assembly comprises three LED of mutual oriented arrangement triangular in shape, and they have triangle center, the center-aligned of this triangle center and LED assembly.The benefit of this embodiment is higher light output.
With reference to embodiment described below, it is clear and clear that these and other aspects of the present invention will become.
Description of drawings
In the accompanying drawings:
Fig. 1 a shows the 3D figure according to the LED lamp system of first embodiment of the present invention;
Fig. 1 b shows the size of the LED lamp system of Fig. 1 a;
Fig. 2 a shows the 3D figure of first variant of the LED lamp system of Fig. 1 a;
Fig. 2 b shows the 3D figure of second variant of the LED lamp system of Fig. 1 a;
Fig. 3 shows the decomposition 3D figure of the LED lamp system of Fig. 1 a according to first variant of Fig. 2 a;
Fig. 4 a shows the 3D figure of radiator of the LED lamp system of Fig. 1 a according to first variant among Fig. 2 a, it shows the front side of this radiator;
Fig. 4 b shows the 3D figure of radiator of the LED lamp system of Fig. 1 a according to second variant among Fig. 2 b, it shows the front side of this radiator;
Fig. 4 c shows the 3D figure of dorsal part of the radiator of Fig. 4 a and Fig. 4 b;
Fig. 5 a first embodiment according to the present invention shows the 3D figure of a support unit of the LED lamp system of Fig. 1 a, and it shows the front side of described support unit;
Fig. 5 b second embodiment according to the present invention shows the 3D figure of described support unit of the LED lamp system of Fig. 1 a, and it shows the front side of described support unit;
Fig. 5 c shows the 3D figure of dorsal part of the support unit of Fig. 5 a;
Fig. 6 a first embodiment according to the present invention shows the 3D figure of front side of big envelope of the LED lamp system of Fig. 1 a;
Fig. 6 b first embodiment according to the present invention shows the 3D figure of dorsal part of big envelope of the LED lamp system of Fig. 1 a;
Fig. 7 first embodiment according to the present invention shows the 3D figure of dorsal part of glass bulb of the LED lamp system of Fig. 1 a;
Fig. 8 first embodiment according to the present invention shows the 3D figure of PCB of the LED lamp system of Fig. 1 a;
Fig. 9 a first embodiment according to the present invention shows the 3D figure of front side of PCB support unit of the LED lamp system of Fig. 1 a;
Fig. 9 b first embodiment according to the present invention shows the 3D figure of dorsal part of PCB support unit of the LED lamp system of Fig. 1 a;
Figure 10 a first embodiment according to the present invention shows the 3D figure of front side of insulating element of the LED lamp system of Fig. 1 a;
Figure 10 b first embodiment according to the present invention shows the 3D figure of dorsal part of insulating element of the LED lamp system of Fig. 1 a;
Figure 11 a first embodiment according to the present invention shows the 3D figure of front side of interface (fitting) of the LED lamp system of Fig. 1 a;
Figure 11 b first embodiment according to the present invention shows the 3D figure of dorsal part of interface of the LED lamp system of Fig. 1 a;
Figure 12 shows other aspects according to LED lamp system of the present invention;
Figure 13 a shows a sectional view of the LED lamp system of Fig. 1 a, wherein shows the one side of cooling effect;
Figure 13 b shows another sectional view of the LED lamp system of Fig. 1 a, wherein shows cooling effect on the other hand;
Figure 13 c shows the part of another sectional view of the LED lamp system of Fig. 1 a, wherein shows the another aspect of cooling effect;
Figure 14 a shows the LED lamp system of Fig. 1 a of the orientation with points upwards;
Figure 14 b shows the LED lamp system of Fig. 1 a of the orientation with directed downwards;
Figure 14 c shows the LED lamp system with Fig. 1 a that points to the other orientation of side;
Figure 15 a shows the figure of an assembly, and this assembly comprises a radiator, and a LED assembly is installed on radiator;
The figure of this assembly after Figure 15 b shows on the assembly that first glass bulb is provided at Figure 15 a according to another embodiment of LED lamp system;
The figure of this assembly after Figure 15 c shows on the assembly that second glass bulb is provided at Figure 15 b, this causes forming a very favorable embodiment of LED lamp system.
Reference numerals list
10 glass bulbs
12 glass bulb edges
18 glass bulb openings
19 another glass bulbs
20 LED assemblies
20 ' another LED assembly
First variant of 30 radiators
Second variant of 30 ' radiator
32 connecting holes
32 ' other connecting hole
34 spines
36 other through holes
37 intermediate spaces/air path
38 circular extensions
40 support units
42 cylindrical parts
First variant of 44 wings
Second variant of 44 ' wing
46 screws
47 other holes
48 inner spaces
50 PCB support units
52 PCB support unit cylinders
54 projections
56 slits
58 PCB support unit dorsal part openings
60?PCB
62 led drivers
70 big envelopes
72 other cylindrical parts
74 openings
76 open fronts
77 edges
78 after-openings
80 insulating elements
84 syndetons
85 forward edge
87 dorsal part edges
90 interfaces
100?LED
110 cold airs stream
115 air stream
115 ' other airflow component
120 stream of warm air
130 turbulent air flow
140 big envelopes shine grade than the low light of lower part
The intermediate light of the higher part of 145 big envelopes is according to grade
The high illumination grade of the higher part of 150 support units
D glass bulb diameter
The specific embodiment
The present invention aims to provide than conventional LED lamp system has the more LED lamp system of long service live.Reaching of this target is owing to providing improved cooling system for the LED lamp system.Described improved cooling system comprises: a radiator; A LED assembly, its heat is connected to described radiator; Air intake and air outlet slit, described air intake and air outlet slit are positioned to obtain the air stream along described radiator, wherein said LED assembly has emission side in work is used, wherein said air stream is to be caused by the thermal conductance that described LED assembly produces, described air intake and air outlet slit are positioned as basic and described LED assembly coplane or at the dorsal part of LED assembly, it is opposite with described emission side that wherein said dorsal part is defined as.The improvement of described cooling system is to keep cooling off air stream away from the LED assembly or away from the parts around the LED assembly.LED lamp system according to the present invention has solved such as problems such as coupling, performance, safety, q﹠rs by a kind of non-active thermal design (passivet hermal design) is provided, and it is low (wherein junction temperature directly or relevant with aforesaid properties indirectly) that this non-active thermal design is intended to keep the junction temperature Tj of the LED in the LED assembly.Described LED lamp system is based on utilizing thermal convection current.The embodiment of described LED lamp system is also based on radiation and conduction.Non-active thermal design like this provides bigger design freedom for improving the LED lamp system.
For the ease of the specific embodiment is discussed, some statements have been defined below.
In whole specification, term " LED assembly " should be interpreted as having comprised the assembly of at least one LED, and described at least one LED is configured to towards light emission direction emission light.On such LED can be arranged on a bearing basement---for example PCB---, described bearing basement also can have heat sinking function.Described LED can be provided with optical mirror slip, the light beam that comes out from assembly with further improvement.Described LED assembly can also comprise electric terminal, is used at least one LED is connected to power supply.Nowadays, many different LED provider components are arranged.For the present invention,, choose which kind of LED component relation and little as long as other parts of LED lamp system are adjusted so that the LED assembly can be installed on the LED lamp system.
Fig. 1 a shows the 3D figure according to the LED lamp system of first embodiment of the present invention.Described LED lamp system comprises a glass bulb 10, a big envelope 70 and an interface 90.Fig. 1 b shows the size of the LED lamp system of Fig. 1 a.The diameter D of glass bulb equals 60mm, and this equals the width of known conventional incandescent lamp bulb.
Fig. 2 a shows the 3D figure of first variant of the LED lamp system of Fig. 1 a.Fig. 2 b shows the 3D figure of second variant of the LED lamp system of Fig. 1 a.In these figure, glass bulb 10 is plotted the transparent element of non-diffusive, and this only is the illustration purpose.In fact, glass bulb 10 also can comprise diffuser (diffuser), is used to make the light diffusion of emission from described LED assembly.In the variant of Fig. 2 a, LED assembly 20 is visible, and it comprises single LED placed in the middle 100.In the variant of Fig. 2 b, provide another LED assembly 20 ', it comprises three LED 100, these three LED are arranged to and are in triangle location.Yet, the invention is not restricted to such LED quantity, under the situation of a plurality of LED, also be not limited to such location.The variant of Fig. 2 a provides a kind of low-power consumption LED lamp scheme by only using a LED 100.The variant of Fig. 2 b provides higher light output by using three LED 100.In an alternative embodiment, provide single led assembly, perhaps have other LED assemblies of four LED (multiple package) with two LED.
Fig. 3 shows the decomposition 3D figure of the LED lamp system of Fig. 1 a according to first variant of Fig. 2 a.Described LED lamp system comprises following major part: glass bulb 10, LED assembly 20, radiator 30, support unit 40, PCB support unit 50, PCB 60, big envelope 70, insulating element 80, and interface 90.When described LED lamp system assembled, glass bulb 10 was attached to radiator 30, and LED assembly 20 is installed on this radiator.Radiator 30 is installed on the support unit 40.PCB 60 is installed within the PCB support unit 50, and wherein PCB support unit 50 is accommodated within the support unit 40.The structure that comprises glass bulb 10, LED assembly 20, radiator 30, support unit 40, PCB support unit 50 and PCB 60 is inserted within the big envelope 70.Insulating element 80 is provided at the mechanical connection between big envelope 70 and other parts (particularly, being support unit 40, PCB support unit 50 and PCB 60).In addition, insulating element 80 is connected to interface 90.More details about the single part of LED lamp system hereinafter will be described.
Fig. 4 a shows the 3D figure of radiator 30 of the LED lamp system of Fig. 1 a according to first variant of Fig. 2 a, the figure shows the front side of radiator.This variant of radiator 30 designs for such LED lamp system: this LED lamp system has a LED assembly, and this LED assembly only has a LED placed in the middle with respect to the LED system.Fig. 4 b according to second variant of Fig. 2 b show the radiator 30 of the LED lamp system of Fig. 1 a ' 3D figure, the figure shows the front side of radiator.Radiator 30 ' this variant design for such LED lamp system: this LED lamp system has a LED assembly, and this LED assembly has three LED that settle in the triangle mode.Fig. 4 c shows the 3D figure of dorsal part of the radiator of Fig. 4 a and Fig. 4 b.
Need be installed in each radiator 30,30 ' on each LED assembly, preferably include a printed circuit board (PCB) (PCB) that is located on the aluminium substrate.This aluminium substrate is as radiator, however also as being printed on this aluminium substrate but with the carrier of some strip conductor of its electric insulation.These strip conductors are used for connecting the LED on the LED assembly.
The radiator 30 of Fig. 4 b ' a favourable variant in, upper surface can comprise the part of inclination, so that the LED assembly of establishing thereon provides the light of more dispersing to distribute.Another variant of above-mentioned embodiment has comprised such situation, and wherein extension 38 is arranged on the support unit rather than on radiator 30.In next section, support unit is discussed.
Fig. 5 a first embodiment according to the present invention shows the 3D figure of support unit 40 of the LED lamp system of Fig. 1 a, and it shows the front side of described support unit.Fig. 5 b second embodiment according to the present invention show the support unit 40 of the LED lamp system of Fig. 1 a ' 3D figure, it shows the front side of described support unit.The 3D of dorsal part that Fig. 5 c shows the support unit of Fig. 5 a looks.Two variants 40,40 ' all of support unit have comprised cylindrical parts 42, and this cylindrical parts comprises an inner space, will insert PCB and PCB support unit in this inner space.Two variants 40,40 ' all of support unit comprise a plurality of wings 44,44 ', described a plurality of wings distribute around the periphery of cylindrical parts 42.Be the length that they extend in the difference between the wing of Fig. 5 a and 5b on cylindrical parts 42.
As already mentioned, support unit 40,40 ' as the substrate of radiator 30.In some embodiments, and particularly support unit 40 comprises in those embodiments of heat-conducting layer a such as aluminium that described support unit 40 is as an other radiator of described LED lamp system therein.In addition, it is as the protection of PCB (it has comprised led driver).In work was used, PCB also produced heat, described heat advantageously by support unit 40,40 ' radiation be delivered to external environment, especially when support unit be when making by thermally conductive materials.
The wing 44,44 ' make radiating surface increase.Equally, the wing 44,44 ' support unit 40,40 ' and big envelope between the space in define air duct.These air duct facilities the LED lamp system to stream mechanism (from the air intake to the air outlet slit).
Described support unit 40,40 ' also be provided with two screws 46 in upper surface is used for support unit mechanical connection (in this embodiment by screw) is arrived insulating element, and this hereinafter will discuss this specification.In order to realize this mechanical connection, support unit 40,40 ' be provided with the inward flange (not shown) on the inner surface of corresponding cylindrical parts 42 passes this inward flange with the screw insertion, then, screw is screwed into insulating element.Support unit 40,40 ' also is provided with an other hole 47, is used for that a LED is driven cable and supplies with the LED assembly.
In an advantageous embodiment, radiator 30,30 ' with support unit 40,40 ' make by identical thermally conductive materials---such as aluminium---.
Fig. 6 a first embodiment according to the present invention shows the 3D figure of front side of big envelope 70 of the LED lamp system of Fig. 1 a.Fig. 6 b first embodiment according to the present invention shows the 3D figure of dorsal part of big envelope 70 of the LED lamp system of Fig. 1 a.In one embodiment, big envelope 70 also comprises aluminium.In this embodiment, it is also as radiator.Big envelope 70 comprises another cylindrical parts 72, and it has open front 76, and described open front 76 is used to admit and comprises following every structure: glass bulb 10, LED assembly 20, radiator 30, support unit 40, PCB support unit 50 and PCB 60.Cylindrical parts 72 also comprises an after-opening 78, and described after-opening 78 is used to admit insulating element 80.In addition, cylindrical parts 72 has towards the cumulative diameter of the side with open front.In this way, the profile of big envelope and support unit 40 couplings with wing 44.In all embodiments, big envelope 70 has all played important function in the cooling mechanism of LED lamp system.At this point, big envelope 70 comprises a plurality of openings 74 in the one side, and described opening is as air intake or as air outlet slit.This cooling effect will hereinafter further be explained in this manual.In the embodiment of Fig. 6 b, big envelope 70 is only by contacting with the bottom physics of support unit 40 at an edge 77 of cylindrical parts 72 downsides.This little physics contact area causes the following fact: promptly, big envelope 70 almost only is supported the radiation of parts and heats.Therefore, in work was used, it is relatively cool that big envelope keeps, and this has prevented to scald finger skin when holding the big envelope 70 of lamp.Another function of big envelope is the air duct that further is defined for the continuous air flow (in work is used) between air intake and outlet, as hereinafter further elaborating in this specification.
Fig. 7 first embodiment according to the present invention shows the 3D figure of dorsal part of glass bulb 10 of the LED lamp system of Fig. 1 a.The light that is produced by the light emitting diode in the LED assembly (LED) is guided through lens, and produces the light beam of dispersing, and this light beam has substantially spends to the angle between 110 degree between 90.In addition, wish to make light beam more disperse., provide as next glass bulb 10, this glass bulb is made by the glass that scribbles diffuse material thereon for this reason.This diffuse material is used for the light diffuse scattering.That is to say that diffuse material makes during operation the homogeneity by the light intensity distributions of the light of luminescence window emission further strengthen, and also, launches light on wideer angle.Use another benefit of glass to be that it is good heat guard, the heat (stream of warm air) that therefore is very suitable for being produced by radiator 30, support unit 40 and big envelope 70 remains on the outside.Use another benefit of glass to be, compare with for example using polymer or plastics, variable color and distortion do not take place so easily.Especially the material that is suitable as diffuse material is calcium halophosphate activated by antimony andmanganese and/or calcium pyrophosphate.Such diffuser is preferably provided in the coating that wherein is added with adhesive (for example fluo-copolymer).Have to be noted that to glass bulb 10 provides following other materials such as synthetic resin or lucite, described other materials scattered light, preferred diffusion light (for example so-called opal) still falls within the scope of the present invention.Described bulb 10 comprises a glass bulb edge 12, is used to be installed to radiator 30.During installation, (on the radiator 30) LED assembly 20 is placed within the glass bulb opening 18 of glass bulb 10.
Fig. 8 first embodiment according to the present invention shows the 3D figure of PCB of the LED lamp system of Fig. 1 a.Printed circuit board (PCB) (PCB) 60 comprises the led driver of mentioning previously that is used for driving LED.Described driver is a pith of LED lamp system, must take special care to design.LED lamp system as shown in FIG. is designed to substitute conventional incandescent lamp bulb.An expection character of LED lamp system is to use conventional light adjusting system to this lamp light modulation.This requires led driver that variable output current is provided, and described variable output current is by a source Control of Voltage that is applied to described interface.Described led driver also comprises the transformer (not shown) that an electricity is isolated.The input side of described transformer (high-voltage side) is electrically connected with described interface 90, and the outlet side of described transformer (low voltage side) then is connected to an integrated circuit, and it is used for correction voltage and adjusts the output current that is used for driving LED.In PCB, use the benefit of transformer to be: lower voltage, so that electric wire needs thinner insulation (conductive core that this means electric wire can be thicker, thereby caused lower resistance to produce still less heat, finally cause the load of transformer lower).Second benefit is safety.If glass bulb breaks, LED assembly and electric terminal thereof are exposed.Yet, on these terminals, only have low-voltage.
The ideal format of LED lamp system as shown in FIG. is:
-input voltage: 110-250V ac/dc;
-power factor (PF)＞0.85;
-led driver output: 3.2-12.4V/350-700mA.
Fig. 9 a first embodiment according to the present invention shows the 3D figure of front side of PCB support unit 50 of the LED lamp system of Fig. 1 a.Fig. 9 b first embodiment according to the present invention shows the 3D figure of dorsal part of PCB support unit 50 of the LED lamp system of Fig. 1 a.Described PCB support unit 50 comprises a PCB support unit cylinder 52, and it is used to hold PCB 60.At the dorsal part of cylinder 52, there is the slit 56 of two positioned opposite, it is used to form the above-mentioned screw between support unit 40 and insulating element and connects.At the dorsal part of cylinder 52, also have a PCB support unit dorsal part opening 58, it is used to admit insulating element 80.In the front side of PCB support unit cylinder 52, there is a previously mentioned projection 54.This projection 54 can be inserted into one of power hole 46 of support unit 40.This projection 54 is convenient to led driver cable (not shown) is supplied with LED assembly 20 from PCB 60.
PCB support unit among Fig. 9 b is made by electrical insulator, to meet all safety requirements of illuminating product.It can comprise such as materials such as Merlon.Another function of PCB support unit is to hold and fixing PCB.Use the design of Fig. 9 b, prevented between printed circuit board (PCB) and open air, to form open the connection.And described design has also prevented the damage of distribution (not shown).
Figure 10 a first embodiment according to the present invention shows the 3D figure of front side of insulating element 80 of the LED lamp system of Fig. 1 a.First embodiment Figure 10 b according to the present invention shows the 3D figure of dorsal part of insulating element 80 of the LED lamp system of Fig. 1 a.Described insulating element 80 is used for mounting interface 90, support unit 40, big envelope 70 and PCB support unit 50.In addition, insulating element 80 is used for interface 90 and big envelope 70 electric insulations.Such electric insulation can reach as the material of insulating element 80 by using Merlon.Yet other materials also is fine.Merlon is favourable, because it is mechanically firm material.On the front side of insulating element 80, provide a syndeton 84 and a forward edge 85 that is used to be connected to PCB support unit 50.At the dorsal part of insulating element 80, provide the dorsal part edge 87 that is used to be connected to interface 90.
Figure 11 a shows the 3D figure of front side of the interface 90 of LED lamp system according to Fig. 1 a of first embodiment of the present invention.Figure 11 b first embodiment according to the present invention shows the 3D figure of dorsal part of interface 90 of the LED lamp system of Fig. 1 a.In the embodiment shown in these figure, described interface is the E27 type.Yet this can be the interface of any kind, as long as insulating element 80 is adapted to the size of this interface.Interface 90 is set at 87 tops, dorsal part edge of insulating element 80.
Figure 12 shows other aspects according to LED lamp system of the present invention.The various different parts of having discussed in paragraph formerly and the accompanying drawing are illustrated in the figure.Importantly, the air of cooling radiator 30 stream can not reheat LED assembly 20 again among the present invention.In order to reach this effect, the present invention stipulated, air intake AI and air outlet slit AO all are positioned among the reference planes RF who passes the LED assembly or afterwards.Air intake AI and air outlet slit AO are openings, and air stream is maintained between the described opening by the heat that LED assembly 20 produces.Must emphasize that the opening 74 in the previously mentioned big envelope 70 both can also can be used as air outlet slit AO as air intake AI.This depends on the direction of LED lamp system fully, hereinafter will describe in detail as specification.For also being like this by other openings that the space limited between the edge 44 of support unit 40.The direction that depends on the LED lamp system, these openings also can be used as air intake AI or air outlet slit AO.
Figure 13 a shows the sectional view of the LED lamp system of Fig. 1 a, wherein shows the one side of cooling effect.Described sectional view passes radiator 30 and support unit 40 (directly over big envelope 70) obtains, so that circular extension 38 as seen.Circular extension 38 is configured to make that intermediate space 37 is arranged between them, these intermediate spaces 37 are connected with each other and link to each other with air outlet slit with air intake.The intermediate space 37 of these connections has formed air path.In the LED of Figure 13 a lamp system, this lamp is oriented direction upwards.In this direction, the opening 74 in the big envelope 70 is as air intake AI.At work, cold relatively air stream 110 flows into these openings.After entering opening 74, this air stream rises in the space between big envelope 70 and support unit 40, and is heated by described support unit (by radiation), and leaves as stream of warm air 120 by the air outlet slit (not shown).As long as the work of LED lamp system, then air stream is just kept by the heat generation.The air kept stream provides effectively along the thermal convection current of radiator 30 (among the figure only the circular extension 38 of visible radiator).Figure 13 a also is used for illustrating such thermal convection current and is further strengthened by the so-called turbulent convection in the space 37 between radiator 30 and the support unit 40.Described turbulent convection is caused in conjunction with the above-mentioned air stream of being kept by the thermograde within the radiator 30.Described turbulent convection illustrates with big arrow in the drawings, and big arrow is represented turbulent air flow 130.Though all arrows all point to outward direction, in fact turbulent air flow is back and forth through space 37.Must be noted that, this turbulent convection is owing to the following fact just becomes possibility: promptly, radiator 30 and support unit 40 are arranged and make and have free space between them, and described circular extension has guaranteed to exist from radiator 30 to support unit 40 direct heat conduction simultaneously.
Figure 13 b shows another sectional view of the LED lamp system of Fig. 1 a, wherein shows cooling effect on the other hand.This sectional view is that the bottom and the big envelope 70 that pass support unit 40 obtain.The figure shows the radiation levels of LED lamp system, this radiation levels is directly related with the relevant temperature of radiation component.In the embodiment of Figure 13 b, be similar to Figure 13 a, the LED lamp system also is oriented in the direction of points upwards.Can know from this figure to draw that big envelope 70 is spaced apart with support unit 40.As before mentioning in the specification, big envelope 70 only contacts with support unit 40 physics near the insulating element (not shown) at the downside of support unit 40.Therefore, big envelope 70 major parts are by from the radiation heating of support unit 40.Support unit 40 has maximum temperature in a side that contacts with radiator, and has minimum temperature in a side that is connected with insulating element.Therefore, the bottom of big envelope 70 has the low radiation levels by light arrow 140 expressions.The top of big envelope 70 has by the middle radiation levels than dark arrow 145 expression, and this is the result of high radiation levels of the support unit 40 of dark arrow 150 expressions.And, to test verifiedly, the temperature of big envelope remains in the margin of safety, thereby makes and can grip big envelope (between the work operating period or after a while) and can scalded skin.
Figure 13 c shows the part of another sectional view of the LED lamp system of Fig. 1 a, wherein shows the another aspect of cooling effect.This figure illustrate in greater detail in Figure 13 a at the LED lamp system of equidirectional simply discussed to stream mechanism.Cold air stream 110 downsides at big envelope 70 enter big envelope 70, and 115 (arrow by points upwards is represented) of air stream to flowing, and are supported parts 40 and radiator 30 heating along upward then, and finally the upside at big envelope leaves described LED lamp system.Must emphasize that the embodiment that provides has elaborated the support unit 40 (in order to reach this effect, it can be manufactured from aluminium, just as radiator 30) with heat sinking function herein.In other words, the radiator 30 that LED assembly (not shown) is installed on it is supported parts 40 expansions, and also, support unit 40 has bigger surface area, and contacts better with turbulent air flow 130 with air stream 115.Yet, it should be noted that support unit is uninevitable by the material manufacturing that is suitable for use as radiator.Even stream mechanism is still existed in such embodiments, according to of the present invention.
Figure 14 a shows the LED lamp system of Fig. 1 a of the orientation with points upwards.Figure 14 b shows the LED lamp system of Fig. 1 a of the orientation with directed downwards.Figure 14 c shows the LED lamp system with Fig. 1 a that points to the other orientation of side.The situation of Figure 14 a meets the situation (direction of points upwards) of Figure 13 a-13c.Arrow 115 has been indicated the path of air-flow.Air stream 110 enters the LED lamp system by the opening in the big envelope, moves upward between big envelope and support unit, and 120 leaves described LED lamp system between glass bulb and big envelope subsequently.Along this path, air stream 115 is through radiator, and wherein said support unit also can show as the radiator extension, as previously mentioned.It should be noted that arrow has been expressed well, the warm/thermal air current 120 that leaves the LED lamp system at upside separates with the LED assembly.Glass bulb 10 has further strengthened this heat and has isolated (insulation) effect.Situation among Figure 14 b shows identical LED lamp system, but this LED lamp system directed downwards.Once more, air stream 115 is generated by the heat of radiator and keeps.Yet, about the LED lamp himself, air stream 115 direction of having reversed.Air intake AI has become air outlet slit AO, and air outlet slit AO has become air intake AI.Once more, warm/thermal air current 120 separates with the LED assembly.Situation among Figure 14 c shows identical LED lamp system, but this LED lamp system points to by the side.Once more, air stream 115 is generated by the heat of radiator and keeps.Yet air stream 115 becomes more complicated.But in sensing up and down, the air stream in the space between radiator and support unit is turbulent convection, and this major part has become conventional convection current in Figure 14 c, and conventional convection current provides better cooling effect.Must be noted that this effect is to become possible by the particular design of radiator and support unit (using circular extension to set up a space between those parts).In either case, at the downside of LED lamp, opening is air intake AI now, and at upside, these openings are air outlet slit AO.Similarly, at the downside of LED lamp, the opening between big envelope and glass bulb (also be by support unit the wing limit) is as air intake AI, and at upside, these openings are as air outlet slit AO.In the direction of Figure 14 c, also have extra airflow component 115 ', its from the lower-left side flow of big envelope to the upper right side.This component also has contribution to cooling effect.
Figure 15 a shows the figure of an assembly, and this assembly comprises a radiator, and a LED assembly is installed on this radiator.Figure 15 b shows the figure of this assembly after the assembly that first glass bulb is provided at Figure 15 a according to another embodiment of LED lamp system.Figure 15 c shows the figure of this assembly spare after the assembly that second glass bulb is provided at Figure 15 b, and this has formed a very favorable embodiment of LED lamp system.To be different from aforementioned several embodiment part with regard to this embodiment discusses to it.In this embodiment, radiator 30 is prepared and is used for admitting another glass bulb 19 in glass bulb 10.This embodiment has a plurality of advantages.At first, this embodiment provides the better insulation between warm/thermal air current that comes from air outlet slit and LED assembly.Secondly, another glass bulb can comprise diffuser material, with the diffusion effect of further enhancing LED lamp system.This will lose some light outputs, but experiment has proved that light output loss is very little (being approximately a few percent).In a favourable variant, another glass bulb 19 and glass bulb 10 are manufactured from the same material, and for example have the glass of diffuser coating on it.
Therefore, the invention provides a kind of LED lamp system, comprising: radiator (30); LED assembly (20), its heat are connected to radiator (30); Air intake (AI) and air outlet slit (AO), they are positioned to obtain the air stream (115) along radiator (30), wherein said LED assembly (20) has emission side in work is used, wherein said air stream (115) is to be caused by the thermal conductance that LED assembly (20) produces, basic and LED assembly (20) coplane of described air intake (AI) and described air outlet slit (AO) or be positioned at the dorsal part of LED assembly (20), it is relative with described emission side that wherein said dorsal part is defined as.LED lamp system according to the present invention is an illuminator of only utilizing non-active cooling.This cooling mechanism depends on the air stream of advancing along radiator, and this air stream is to keep by the heat that is produced by radiator self.Do not need extra power.
The present invention can be applied to various different application field.For example, the illuminating product that the present invention can be applied to reequip, for example substitute of incandescent lamp bulb.Yet, must emphasize that non-active cooling system according to the present invention is not limited only to the lamp of mentioned kind.
Various different variation the according to LED lamp of the present invention is possible, and do not deviate from the scope of the invention that is defined by the claims.These change that the material separately for example relate to parts is selected, the quantity of LED in separately the profile of each parts, LED assembly, or the like.Embodiment shown in the figure is similar with conventional incandescent lamp bulb, also promptly has identical appearance.This is in order to make this product obtain market approval rapidly.Yet, have to be noted that the lamp profile that the invention is not restricted to these types.Non-active cooling system according to the present invention is applicable to the lamp system of any kind of with any kind of profile.
In various different embodiments, following material all be mentioned think favourable: aluminium, brass, bronze, duralumin, copper, filled gold and silver-plated metal.These materials are referred, are because their thermal conductive resin.But in the near future, plastics and pottery are also probably as radiator material.As long as the efficient of LED further improves and need heat still less to conduct, this just may realize so.
It should be noted that above-mentioned embodiment for example understands the present invention, rather than limited the present invention, and those skilled in the art can design many alternate embodiment and not deviate from the scope of claims.In the claims, any Reference numeral in the placement bracket all should not be construed as and has limited claim.Use verb " comprise " with and distortion do not get rid of not existing of the element of statement or step in the claims.Article before element " one (a) " or " one (an) " do not get rid of the existence of so a plurality of elements.Can also can realize the present invention by means of the hardware that comprises several individual components by means of the computer of suitably programming.In having enumerated the device claim of several devices, several can the realization in these devices by same hardware.This fact of mentioning some certain measures in different mutually dependent claims does not show that the combination of these measures can not be by favourable utilization.In institute's drawings attached, use identical reference number or mark to represent similar or corresponding feature.
Claims (15)
1.LED lamp system comprises:
Radiator (30);
LED assembly (20), its heat are connected to described radiator (30);
Air intake (AI) and air outlet slit (AO), described air intake (AI) and described air outlet slit (AO) are positioned with the air stream (115) of acquisition along described radiator (30),
Wherein said LED assembly (20) has emission side in work is used, wherein said air stream (115) is to be caused by the thermal conductance that described LED assembly (20) produces, described air intake (AI) and described air outlet slit (AO) are basic with described LED assembly (20) coplane or be positioned at the dorsal part of described LED assembly (20), and it is relative with described emission side that wherein said dorsal part is defined as.
2. LED lamp system according to claim 1, wherein said air intake (AI) is moved on the direction vertical with described emission side with described air outlet slit (AO).
3. LED lamp system according to claim 1 and 2, wherein said LED lamp system comprises a support unit (40), it is used to be connected to described radiator (30) so that form an air path (37) between the dorsal part of described radiator (30) and described support unit (40), and wherein said air path (37) links to each other with described air outlet slit (AO) and described air intake (AI).
4. LED lamp system according to claim 3, wherein said LED lamp system comprises a big envelope (70), this big envelope is arranged in described support unit (40) on every side, to form air duct between described air intake (AI) and described air outlet slit (AO), wherein said air intake (AI) and described air outlet slit (AO) are respectively formed at the two ends of described big envelope (70).
5. LED lamp system according to claim 4, wherein said radiator (30) has disc-shape, and wherein said LED assembly (20) is placed in the middle with respect to described radiator (30).
6. LED lamp system according to claim 5, wherein said support unit (40) has cylinder form.
7. according to each described LED lamp system in the claim 3 to 6, wherein said support unit (40) is provided with the wing (44,44 '), the described wing is distributed in around the periphery of described cylinder form and extends on the direction of the longitudinal axis that is parallel to described cylinder form, is used to increase the swept area of described support unit (40) and is used to limit secondary air duct with direct airflow (115).
8. according to each directly or indirectly is subordinated to the described LED lamp system of claim of claim 5 in the claim 5 to 7, wherein said big envelope (70) has cylinder form.
9. LED lamp system according to claim 8, the radius of the cylinder form of wherein said big envelope (70) increases gradually towards an end.
10. according to each directly or indirectly quotes the described LED lamp system of claim of claim 4 in the claim 4 to 9, wherein said radiator (30) and described support unit (40) comprise identical materials.
11. according to each directly or indirectly quotes the described LED lamp system of claim of claim 4 in the claim 4 to 10, wherein said support unit (40) and described big envelope (70) be by a thermal insulation part (80) mechanical connection, described thermal insulation part (80) be arranged on described support unit (40) with the relative opposite side of a side that is provided with described radiator (30).
12. according to each described LED lamp system in the aforementioned claim, wherein said air intake (AI) and/or air outlet slit (AO) comprise the outer a plurality of openings (74) placed that are distributed in described LED lamp system.
13. according to each described LED lamp system in the aforementioned claim, also comprise a glass bulb (10), it is connected to described radiator (30), and covers described LED assembly (20) fully.
14. LED lamp system according to claim 13 also comprises another glass bulb (19), it is located within the described glass bulb (10) that is connected to described radiator (30), and covers described LED assembly (20) fully.
15. LED lamp system according to claim 14, wherein said glass bulb (10) and/or described another glass bulb (19) comprise diffuser material, and it is used for making the light diffusion of emission from described LED assembly (20) in work.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08171333 | 2008-12-11 | ||
| EP08171333.1 | 2008-12-11 | ||
| PCT/EP2009/066841 WO2010066841A1 (en) | 2008-12-11 | 2009-12-10 | Led lamp system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102292594A true CN102292594A (en) | 2011-12-21 |
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|---|---|---|---|
| CN2009801550862A Pending CN102292594A (en) | 2008-12-11 | 2009-12-10 | Led lamp system |
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| Country | Link |
|---|---|
| EP (1) | EP2376834A1 (en) |
| CN (1) | CN102292594A (en) |
| WO (1) | WO2010066841A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013123642A1 (en) * | 2012-02-21 | 2013-08-29 | 厦门星际电器有限公司 | Radiating led lamp |
| CN103363497A (en) * | 2012-04-06 | 2013-10-23 | 李正福 | Heat dissipation module structure of lamps and lanterns |
| CN105546369A (en) * | 2016-01-13 | 2016-05-04 | 成都佳美嘉科技有限公司 | Novel LED heat dissipation lamp |
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| DE102009056115B4 (en) * | 2009-11-30 | 2016-08-25 | Tridonic Jennersdorf Gmbh | Retrofit LED lamp with double-layer heat sink |
| US8360622B2 (en) * | 2010-07-09 | 2013-01-29 | GE Lighting Solutions, LLC | LED light source in incandescent shaped light bulb |
| FR2970546A1 (en) * | 2011-01-13 | 2012-07-20 | Homelights | LED BULB WITH INSULATION |
| FR2970547A1 (en) * | 2011-01-13 | 2012-07-20 | Homelights | DIODE BULB WITH DISSIPATOR |
| RU2583901C2 (en) | 2011-01-14 | 2016-05-10 | Конинклейке Филипс Электроникс Н.В. | Lighting fixture |
| CH704544A1 (en) * | 2011-02-22 | 2012-08-31 | Regent Beleuchtungskoerper Ag | Lighting apparatus to heat spreader. |
| KR101823677B1 (en) | 2011-04-21 | 2018-01-30 | 엘지이노텍 주식회사 | Led lighting apparatus |
| EP2718616B1 (en) * | 2011-06-09 | 2015-10-14 | Elumigen, LLC | Solid state lighting device using heat channels in a housing |
| WO2013023022A2 (en) | 2011-08-09 | 2013-02-14 | Rambus Inc. | Light bulb with thermal features |
| JP5575715B2 (en) * | 2011-08-29 | 2014-08-20 | 日立アプライアンス株式会社 | Light bulb type lighting device |
| CN202303274U (en) * | 2011-10-11 | 2012-07-04 | 厦门市东林电子有限公司 | LED lamp heat dissipation structure |
| US9476580B2 (en) | 2012-04-20 | 2016-10-25 | Koninklijke Philips Electronics N.V. | Lighting device with smooth outer appearance |
| US9528693B2 (en) * | 2013-02-28 | 2016-12-27 | Lg Innotek Co., Ltd. | Lighting device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004296245A (en) * | 2003-03-26 | 2004-10-21 | Matsushita Electric Works Ltd | Led lamp |
| DE20312760U1 (en) * | 2003-08-19 | 2003-10-16 | Möller, Gerd, Dipl.-Ing., 28203 Bremen | Electrical lighting unit uses light emitting diodes mounted on a metal cylinder that acts as a cooling tube and uses air flow convection |
| US7144135B2 (en) | 2003-11-26 | 2006-12-05 | Philips Lumileds Lighting Company, Llc | LED lamp heat sink |
| NL1028678C2 (en) * | 2005-04-01 | 2006-10-03 | Lemnis Lighting Ip Gmbh | Heat sink, lamp and method for manufacturing a heat sink. |
| US20070279862A1 (en) * | 2006-06-06 | 2007-12-06 | Jia-Hao Li | Heat-Dissipating Structure For Lamp |
-
2009
- 2009-12-10 WO PCT/EP2009/066841 patent/WO2010066841A1/en active Application Filing
- 2009-12-10 CN CN2009801550862A patent/CN102292594A/en active Pending
- 2009-12-10 EP EP09768387A patent/EP2376834A1/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013123642A1 (en) * | 2012-02-21 | 2013-08-29 | 厦门星际电器有限公司 | Radiating led lamp |
| CN103363497A (en) * | 2012-04-06 | 2013-10-23 | 李正福 | Heat dissipation module structure of lamps and lanterns |
| CN105546369A (en) * | 2016-01-13 | 2016-05-04 | 成都佳美嘉科技有限公司 | Novel LED heat dissipation lamp |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2376834A1 (en) | 2011-10-19 |
| WO2010066841A1 (en) | 2010-06-17 |
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Application publication date: 20111221 |