CN104879673B - Tubular type light fixture - Google Patents
Tubular type light fixture Download PDFInfo
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- CN104879673B CN104879673B CN201510320966.8A CN201510320966A CN104879673B CN 104879673 B CN104879673 B CN 104879673B CN 201510320966 A CN201510320966 A CN 201510320966A CN 104879673 B CN104879673 B CN 104879673B
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- parts
- dissipating cylinder
- light fixture
- type light
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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
- F21V3/02—Globes; Bowls; Cover glasses characterised by the shape
-
- 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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The present invention relates to a kind of tubular type light fixture, including：Lamp holder, enclosing cover, lampshade, heat-dissipating cylinder and some LEDs.Lamp holder has two contact pins.Lampshade is columnar structured, and the both ends of lampshade are connected with lamp holder and enclosing cover respectively.Heat-dissipating cylinder is hollow-core construction, and the both ends of heat-dissipating cylinder are connected with lamp holder and enclosing cover respectively, and heat-dissipating cylinder is placed in lampshade.Some LEDs are arranged at heat-dissipating cylinder, and opening position of the heat-dissipating cylinder between two adjacent LEDs offers heat emission hole.For above-mentioned tubular type light fixture by the way that some LEDs are arranged at into heat-dissipating cylinder, heat-dissipating cylinder can effectively improve cooling surface area, so as to be greatly enhanced tubular type light fixture heat dispersion.
Description
Technical field
The present invention relates to lighting technical field, more particularly to a kind of tubular type light fixture.
Background technology
LED (Light Emitting Diode, light emitting diode) can directly and efficiently convert electrical energy into visible ray, and
And possess the service life up to tens thousand of hours~100,000 hour.LED is used to be referred to as LED lamp for the light fixture of light source, it is with matter
It is excellent, durable, energy-conservation the advantages that and be referred to as the most frequently used illuminator.As LED lamp technology develops rapidly in recent years, LED
Tool product substitutes original fluorescent lighting fixture substantially.
LED basic structure is P-N knots of a semiconductor, and when electric current flows through LED element, the temperature of P-N knots will
Rise, and the temperature in P-N interfaces is referred to as LED junction temperature, is typically due to the size that element chip is respectively provided with very little, therefore, also
The temperature of LED chip is referred to as the junction temperature of LED chip.
At present, a drawback existing for LED pipe formula light fixture itself is that LED pipe formula light fixture light efficiency is tied by LED pipe formula light fixture
Temperature has a great influence, and higher junction temperature of chip will cause light efficiency to be decreased obviously, and influence whether the use of LED pipe formula light fixture
Life-span.Because LED is when luminous, the temperature of its own can be raised constantly, in lasting illumination work, if LED is produced
Raw heat can not exhale in time, it will cause the damage of LED, influence the service life of LED.Therefore, solves LED
The heat dissipation problem of lamp is most important for the performance for lifting LED.
However, still there is the problem of heat dispersion is poor in existing LED pipe formula light fixture, in particular by relatively high power
When LED is as light source, its heating problem is obvious all the more.
The content of the invention
Based on this, it is necessary to provide a kind of tubular type light fixture of good heat dispersion performance.
A kind of tubular type light fixture, including：
Lamp holder, the lamp holder have two contact pins；
Enclosing cover,
Lampshade, the lampshade are columnar structured, and the both ends of the lampshade are connected with the lamp holder and the enclosing cover respectively；
Heat-dissipating cylinder, the heat-dissipating cylinder are hollow-core construction, the both ends of the heat-dissipating cylinder respectively with the lamp holder and the enclosing cover
Connection, and the heat-dissipating cylinder is placed in the lampshade,
Some LEDs, some LEDs are arranged at the heat-dissipating cylinder, and the heat-dissipating cylinder is positioned at described in adjacent two
Opening position between LED offers heat emission hole.
In one of the embodiments, the heat emission hole is circular configuration.
In one of the embodiments, a diameter of 3mm~6mm of the heat emission hole.
In one of the embodiments, a diameter of 4mm~5mm of the heat emission hole.
In one of the embodiments, a diameter of 4.5mm of the heat emission hole.
In one of the embodiments, the hole wall of the heat emission hole is additionally provided with radiating wire.
In one of the embodiments, between two adjacent LEDs at intervals of 2mm~5mm.
In one of the embodiments, between two adjacent LEDs at intervals of 3mm~4mm.
In one of the embodiments, between two adjacent LEDs at intervals of 3.5mm.
For above-mentioned tubular type light fixture by the way that some LEDs are arranged at into heat-dissipating cylinder, heat-dissipating cylinder can effectively improve heat-delivery surface
Product, so as to be greatly enhanced tubular type light fixture heat dispersion.
Brief description of the drawings
Fig. 1 is the structural representation of the tubular type light fixture of an embodiment of the present invention；
Fig. 2 is the cut-away view of the tubular type light fixture shown in Fig. 1；
Fig. 3 is the fragmentary sectional view of the tubular type light fixture shown in Fig. 1；
Fig. 4 is the structural representation of the tubular type light fixture of another embodiment of the present invention；
Fig. 5 is the structural representation of the tubular type light fixture of another embodiment of the present invention；
Fig. 6 is the structural representation of the tubular type light fixture of another embodiment of the present invention；
Fig. 7 is the structural representation of the tubular type light fixture of another embodiment of the present invention.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the better embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make to understand more the disclosure
Add thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
For illustrative purposes only, it is unique embodiment to be not offered as " right side " and similar statement.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff is generally understood that is identical.Term used in the description of the invention herein is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein " and/or " include one or more
The arbitrary and all combination of related Listed Items.
Fig. 1 and Fig. 2 is referred to, tubular type light fixture 10 includes：Lamp holder 100, enclosing cover 200, lampshade 300, heat-dissipating cylinder 400 and some
LED 500, lamp holder 100, enclosing cover 200 are arranged at the both ends of lampshade 300, and heat-dissipating cylinder 400 and some LEDs 500 are placed in lamp
In cover 300.
Referring to Fig. 1, the both ends of lampshade 300 are connected with lamp holder 100 and enclosing cover 200 respectively.Also referring to Fig. 4, lampshade
300 be columnar structured, for example, the lamp holder is used for lamp socket mounted externally；And for example, the lamp holder is provided with contact pin,
The contact pin is used to electrically connect with the lamp socket of outside, to provide power supply to the normal work of the LED.
Referring to Fig. 4, heat-dissipating cylinder 400 is hollow-core construction, the both ends of heat-dissipating cylinder 400 are connected with lamp holder 100 and enclosing cover respectively
200, and heat-dissipating cylinder 400 is placed in lampshade 300.For example, the heat-dissipating cylinder is hollow cylindrical structure.
Referring to Fig. 4, some LEDs 500 are arranged at the outer surface of heat-dissipating cylinder 400, heat-dissipating cylinder 400 is used for LED 500
Heat caused by being lighted during work carries out thermolysis.
In order to further improve the heat dispersion of the tubular type light fixture, for example, referring to Fig. 3, lampshade 300 offer it is some
The air vent 310 being in communication with the outside, some air vents 310 are uniformly distributed in lampshade 300；For example, the air vent is square
Shape hole or parallelogram hole.And for example, the air vent is circular port；And for example, a diameter of 5mm of the air vent~
10mm；And for example, a diameter of 6mm~8mm of the air vent；And for example, a diameter of 7.5mm of the air vent；And for example, Ruo Gansuo
State air vent circular array and be distributed in the lampshade, in this way, colder outside the relatively warm air and the lampshade in the lampshade
Air can carry out heat exchange by the air vent, so as to further improve the heat dispersion of the tubular type light fixture.
In order to further improve the uniformity of the brightness of the tubular type light fixture and illuminating effect, if for example, referring to Fig. 4,
The dry circular array of LED 500 is arranged at heat-dissipating cylinder 400, and adjacent two intervals enclosed between LEDs 500 are equal；And for example, phase
Between the two adjacent circle LEDs at intervals of 2mm~5mm；And for example, between the adjacent two circle LEDs at intervals of 3mm
~4mm；And for example, between the adjacent two circle LEDs at intervals of 3.5mm；And for example, the LED is LED spotlight；Again
Such as, between two adjacent LEDs at intervals of 2mm~5mm；And for example, the interval between two adjacent LEDs
For 3mm~4mm；And for example, between two adjacent LEDs at intervals of 3.5mm, in this way, can further improve described
The brightness of tubular type light fixture and the uniformity of illuminating effect.
In order to further improve the heat dispersion of the tubular type light fixture, for example, referring to Fig. 5, the inner side of heat-dissipating cylinder 400
Wall sets some thermal columns 410 to inner side protrusion, and some thermal columns 410 radially distribute in the madial wall of heat-dissipating cylinder 400；Example
Such as, as shown in figure 5, thermal column 410 is coarser than its end away from heat-dissipating cylinder 400 close to the end of heat-dissipating cylinder 400；And for example, it is described
Thermal column is hollow-core construction；And for example, the thermal column is cylindrical structure；And for example, some thermal columns are away from the LED
One end of lamp is connected with each other；And for example, some through holes are offered on the thermal column；And for example, a diameter of 1mm of the through hole~
1.5mm, in this way, the thermal column can increase cooling surface area, so as to further improve the radiating of the tubular type light fixture
Performance.
In order to further improve the heat dispersion of the tubular type light fixture, for example, referring to Fig. 6, heat-dissipating cylinder 400 is located at phase
Opening position between two adjacent LEDs 500 offers heat emission hole 420；And for example, the heat emission hole is circular configuration；And for example, institute
State a diameter of 3mm~6mm of heat emission hole；And for example, a diameter of 4mm~5mm of the heat emission hole；And for example, the heat emission hole is straight
Footpath is 4.5mm；And for example, the hole wall of the heat emission hole is additionally provided with radiating wire, in this way, relatively warm air in the heat-dissipating cylinder and described
Cooler air outside heat-dissipating cylinder can carry out heat exchange by the heat emission hole, so as to further improve the tubular type light fixture
Heat dispersion.
In order to further improve the utilization rate of the light of the LED, for example, referring to Fig. 7, also include reflecting layer 600,
Reflecting layer 600 fits in the lateral wall of heat-dissipating cylinder 400, and some LEDs 500 are arranged at one of reflecting layer 600 away from heat-dissipating cylinder 400
Side；And for example, the material in the reflecting layer is polyethylene terephthalate；And for example, the material in the reflecting layer is ethene
Vinylacetate；And for example, the material in the reflecting layer is PLA；And for example, the thickness in the reflecting layer is 6mm~10mm；Again
Such as, the thickness in the reflecting layer is 8mm~9mm, in this way, can be to the light sent of the LED by the reflecting layer
Reflected and/or reflected, so as to further improve the utilization rate of the light of the LED.In addition, the reflecting layer
Mechanical performance is also preferable, and e.g., resistant to bending and cutting resistance is preferable.
By the way that some LEDs 500 are arranged at into heat-dissipating cylinder 400, heat-dissipating cylinder 400 can be carried effectively above-mentioned tubular type light fixture 10
High cooling surface area, so as to be greatly enhanced the heat dispersion of tubular type light fixture 10.
In order to further improve the heat dispersion of the tubular type light fixture, for example, the heat-dissipating cylinder is prepared using radiating alloy
Obtain, the radiating alloy includes the heat-sink shell, heat-conducting layer and heat dissipating layer for being sequentially overlapped setting；And for example, the heat-sink shell, described
Heat-conducting layer is identical with the material of the heat dissipating layer or different setting；And for example, the LED is arranged at the heat-sink shell；And for example,
The heat-conductive characteristic of the heat-sink shell, the heat-conducting layer and the heat dissipating layer successively decreases successively, forms heat-conductive characteristic gradient, from
And the heat dissipation path of the radiating alloy is further optimized, the heat dispersion of heat-dissipating cylinder is drastically increased, and then improve
The heat dispersion of the tubular type light fixture, it so, it is possible the radiating requirements for meeting the big tubular type light fixture of caloric value.
For example, the tubular type light fixture of an embodiment of the present invention, wherein, the heat-sink shell of the radiating alloy, it includes
The each component of following mass parts：
90 parts~92 parts of copper, 2 parts~4.5 parts of aluminium, 1 part~2.5 parts of magnesium, 0.5 part~0.8 part of nickel, iron 0.1 part~0.3
Part, 1.5 parts~4.5 parts of vanadium, 0.1 part~0.4 part of manganese, 0.5 part~0.8 part of titanium, 0.5 part~0.8 part of chromium, vanadium 0.5 part~0.8
0.8 part~15 parts and 0.5 part~2 parts part, silicon graphenes.
First, the copper (Cu) that above-mentioned heat-sink shell contains 90 parts~92 parts can make heat-sink shell have preferably heat absorption energy.
When the mass parts of copper are 90 parts~92 parts, the coefficient of heat conduction of heat-sink shell can reach more than 365W/mK, can be rapidly
Heat caused by LED is siphoned away, and then is dispersed in making even heat in the overall structure of heat-sink shell, to prevent heat from existing
Accumulated on contact position between LED and heat-sink shell, cause the generation of hot-spot phenomenon.Moreover, the density of heat-sink shell is small
In the density of fine copper, it so can effectively mitigate the weight of heat-sink shell, more conducively installation manufacture, also greatly reduce simultaneously
Cost.Wherein, the definition of the coefficient of heat conduction is：Per unit length, per K, can transmit how many W energy, unit W/mK, its
In " W " refer to thermal power unit, " m " represents long measure rice, and " K " is absolute temperature units, the bigger explanation heat absorptivity of the numerical value
Can be better.In addition, by adding 0.5 part~2 parts of graphene, its coefficient of heat conduction can be effectively improved, and then improve institute
State the heat absorption capacity of heat-sink shell.
Secondly, heat-sink shell contain mass parts be 2 parts~4.5 parts aluminium, 1 part~2.5 parts of magnesium, 0.5 part~0.8 part of nickel,
0.1 part~0.3 part of iron, 1.5 parts~4.5 parts of vanadium, 0.1 part~0.4 part of manganese, 0.5 part~0.8 part of titanium, 0.5 part~
0.8 part of chromium and 0.5 part~0.8 part of vanadium vanadium.Relative to fine copper material, the ductility of heat-sink shell, toughness, intensity with
And resistance to elevated temperatures is improved significantly, and not easy-sintering；So, when LED is installed on heat-sink shell, so that it may to prevent
Only high temperature caused by LED causes to damage to heat-sink shell, also, can also with preferable ductility, toughness and intensity
Prevent heat-sink shell from being caused to deform by excessive stresses when installing the LED.Wherein, heat-sink shell contains mass parts for 0.5
Part~0.8 part of nickel (Ni), the resistance to elevated temperatures of heat-sink shell can be improved.And for example, heat-sink shell contain mass parts for 1.5 parts~
4.5 parts of vanadium (V) can suppress heat-sink shell crystal grain and grow up, and more uniform tiny grain structure be obtained, to reduce the crisp of heat-sink shell
Property, improve the overall mechanical property of heat-sink shell, to improve toughness and intensity.And for example, heat-sink shell contain mass parts for 0.5 part~
0.8 part of titanium (Ti), can cause the crystal grain miniaturization of heat-sink shell, to improve the ductility of heat-sink shell.
Finally, heat-sink shell also includes the silicon (Si) that mass parts are 0.8 part~15 parts, when heat-sink shell contains appropriate silicon,
On the premise of heat-sink shell heat absorption capacity is not influenceed, the hardness and abrasion resistance of heat-sink shell can be effectively lifted.But through repeatedly reason
Find by analysis and experiment evidence, when the quality of silicon in heat-sink shell is too many, such as mass percent is more than more than 15 parts, can make
The appearance distribution black particles of heat-sink shell, and ductility reduces, and is unfavorable for the production shaping of heat-sink shell.
For example, the lighting apparatus of an embodiment of the present invention, wherein, the heat-sink shell of the radiating alloy, it includes
The each component of following mass parts：
91 parts~91.5 parts of copper, 3 parts~4.5 parts of aluminium, 2 parts~2.5 parts of magnesium, 0.5 part~0.8 part of nickel, iron 0.1 part~0.3
Part, 1.5 parts~4.5 parts of vanadium, 0.1 part~0.4 part of manganese, 0.5 part~0.8 part of titanium, 0.5 part~0.8 part of chromium, vanadium 0.5 part~0.8
0.8 part~15 parts and 1.5 parts~2 parts part, silicon graphenes.
For example, the lighting apparatus of an embodiment of the present invention, wherein, the heat-sink shell of the radiating alloy, it includes
The each component of following mass parts：
91 parts~91.5 parts of copper, 3 parts~4.5 parts of aluminium, 2 parts~2.5 parts of magnesium, 0.5 part~0.7 part of nickel, iron 0.1 part~0.2
Part, 3.5 parts~4.5 parts of vanadium, 0.1 part~0.3 part of manganese, 0.5 part~0.6 part of titanium, 0.5 part~0.6 part of chromium, vanadium 0.5 part~0.6
10 parts~15 parts and 1.5 parts~2 parts part, silicon graphenes.
For example, the lighting apparatus of an embodiment of the present invention, wherein, the heat-sink shell of the radiating alloy, it includes
The each component of following mass parts：
91.5 parts of copper, 4.5 parts of aluminium, 2 parts of magnesium, 0.6 part of nickel, 0.2 part of iron, 3.5 parts of vanadium, 0.3 part of manganese, 0.5 part of titanium, chromium 0.5
10 parts and 2 parts part, 0.5 part of vanadium, silicon graphenes.
For example, the tubular type light fixture of an embodiment of the present invention, wherein, the heat-conducting layer of the radiating alloy, it includes
The each component of following mass parts：
60 parts~65 parts of copper, 55 parts~60 parts of aluminium, 0.8 part~1.2 parts of magnesium, 0.2 part~0.5 part of manganese, 0.05 part of titanium~
0.3 part, 0.05 part~0.1 part of chromium, 0.05 part~0.3 part of vanadium, 0.3 part~0.5 part and 0.1 part~0.3 part graphene of silicon.
First, above-mentioned heat-conducting layer contains the copper and 55 parts~60 parts of aluminium that mass parts are 60 parts~65 parts, can cause
The coefficient of heat conduction of heat-conducting layer is maintained at 320W/mK~345W/mK, described in ensureing that heat-conducting layer will can absorb as heat-sink shell
Heat caused by LED is quickly transmitted to heat dissipating layer, and then prevents heat from being accumulated on heat-conducting layer, causes hot-spot phenomenon
Produce.Relative to prior art, merely using price costly and the larger copper of quality, above-mentioned heat-conducting layer can both ensure soon
The heat transfer of heat-sink shell to heat dissipating layer, is had lighter weight, is easily installed casting, the advantages of price is less expensive by speed again.Together
When, relative to prior art, merely there is more preferably conductivity of heat using the poor aluminium alloy of radiating effect, above-mentioned heat-conducting layer
Energy.
Next, by adding 0.1 part~0.3 part of graphene, can be greatly enhanced the heat conductivility of the heat-conducting layer,
Preferably by the heat transfer passed over from heat-sink shell to heat dissipating layer.
Finally, heat-conducting layer contains the magnesium, 0.2 part~0.5 part of manganese, 0.05 part~0.3 that mass parts are 0.8 part~1.2 parts
The titanium, 0.05 part~0.1 part of chromium, 0.05 part~0.3 part of vanadium and 0.3 part~0.5 part of silicon of part, so as to improve heat-conducting layer
Mechanical performance and resistance to elevated temperatures, e.g., mechanical performance includes but is not limited to yield strength, tensile strength.For example, heat-conducting layer
Containing the magnesium that mass parts are 0.8 part~1.2 parts, heat-conducting layer yield strength and tensile strength can be assigned to a certain extent, by
In radiating alloy in the fabrication process, it is necessary to heat-sink shell, heat-conducting layer and heat dissipating layer entirety punching press are integrally formed, this just needs
Heat dissipating layer has stronger yield strength, to prevent heat dissipating layer from producing irreversible shape by favourable opposition compression in process
Become, and then ensure the proper heat reduction performance of radiating alloy.When the relative mass of magnesium is too low, e.g., when mass parts are less than 0.8 part,
It can not substantially ensure that the yield strength of heat-conducting layer meets to require, however, when the relative mass of magnesium is too high, such as mass parts are more than
At 1.2 parts, the ductility and heat conductivility dramatic decrease of heat-conducting layer can be caused again.For example, heat-conducting layer contains mass parts for 0.2
Part~0.8 part of iron, the higher resistance to elevated temperatures of heat-conducting layer and high temperature resistant mechanical performance can be assigned, beneficial to the processing of heat-conducting layer
Casting.
For example, the tubular type light fixture of an embodiment of the present invention, wherein, the heat dissipating layer of the radiating alloy, it includes
The each component of following mass parts：
88 parts~93 parts of aluminium, 5.5 parts~10.5 parts of silicon, 0.3 part~0.7 part of magnesium, 0.05 part~0.3 part of copper, 0.2 part of iron
~0.8 part, 0.2 part~0.5 part of manganese, 0.05 part~0.3 part of titanium, 0.05 part~0.1 part of chromium, 0.05 part~0.3 part and 5 parts of vanadium
~15 parts of graphenes.
First, above-mentioned heat dissipating layer contains the aluminium that mass parts are 88 parts~93 parts, can cause the coefficient of heat conduction of heat dissipating layer
Be maintained at 200W/mK~220W/mK, when heat caused by LED by heat-sink shell and heat conduction layer segment radiating after, it is remaining
When heat passes to heat dissipating layer by heat-conducting layer again, heat dissipating layer may insure to dissipate these remaining heats by consistent
Walk, and then prevent heat from being accumulated on heat dissipating layer, cause hot-spot phenomenon.
Secondly, by adding 5 parts~15 parts of graphene, the heat dispersion of the heat dissipating layer can be effectively improved, is entered
And the heat being transmitted to from the heat-conducting layer can be rapidly lost in the air dielectric in the external world.
Finally, heat dissipating layer contains the silicon, 0.3 part~0.7 part of magnesium, 0.05 part~0.3 that mass parts are 5.5 parts~10.5 parts
The copper, 0.2 part~0.8 part of iron, 0.2 part~0.5 part of manganese, 0.05 part~0.3 part of titanium, 0.05 part~0.1 part of chromium of part
And 0.05 part~0.3 part of vanadium, the heat dispersion of heat dissipating layer can be significantly improved.For example, heat dissipating layer contains mass parts is
5.5 parts~10.5 parts of silicon and 0.05 part~0.3 part of copper, it can be ensured that heat dissipating layer has good mechanical properties and lighter weight
The advantages of, at the same time it can also further improve the heat-conductive characteristic of heat dissipating layer, further ensure that heat dissipating layer can will be via heat absorption
Scatter away after-heat consistent after layer and heat-conducting layer transmission, and then prevent heat from being accumulated on heat dissipating layer, cause office
Portion's superheating phenomenon.
In order to further improve the tensile strength of the heat dissipating layer, for example, it is 0.8 part that the heat dissipating layer, which also includes mass parts,
~1.2 parts of lead (Pb), so, can when the lead that heat dissipating layer contains 0.8 part~1.2 parts can improve the tensile strength of heat dissipating layer
When striking out radiating fin, i.e. laminated structure to prevent that heat dissipating layer ought be cast, due to being pullled stress by excessive punching press
And it is broken.
In order to further improve the high temperature oxidation resistance of the heat dissipating layer, for example, the heat dissipating layer also includes mass parts
For 0.05 part~0.08 part of niobium (Nb), found through many experiments evidence and theory analysis, when the mass parts of niobium are more than 0.05 part
When, the antioxygenic property of heat dissipating layer can be greatly enhanced, it will be understood that heat dissipating layer as in LED street lamp radiator with the external world
The maximum part of air contact area, it requires higher to high temperature oxidation resistance.However, when the mass parts of niobium are more than 0.08 part
When, the magnetic of heat dissipating layer can be caused to sharply increase, the miscellaneous part in tubular type light fixture can be had an impact.
In order to further improve the heat dispersion of the heat dissipating layer, for example, heat dissipating layer also include mass parts be 0.05 part~
0.2 part of germanium (Ge), when the mass parts of germanium are more than 0.05 part, preferable effect can be played to the raising of the heat dispersion of heat dissipating layer
Fruit, however, when the quality accounting of germanium is excessive, such as when the mass parts of germanium are more than 0.2 part, the brittleness of heat dissipating layer can be made increase again.
Above-mentioned radiating alloy sets heat-sink shell, the heat-conducting layer and the heat dissipating layer by being sequentially overlapped, and described
The heat-conductive characteristic of heat-sink shell, the heat-conducting layer and the heat dissipating layer successively decreases successively, forms heat-conductive characteristic gradient, compared to
For fine copper material, on the premise of heat dispersion is ensured, weight is greatly lowered；Compared to a large amount of existing aluminium alloy of in the market
For, heat dispersion greatly enhances.
It should be noted that the other embodiment of the present invention also includes, the technical characteristic in the various embodiments described above is mutually tied
Close what is formed, the tubular type light fixture that can implement.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
- A kind of 1. tubular type light fixture, it is characterised in that including：Lamp holder, the lamp holder have two contact pins；Enclosing cover,Lampshade, the lampshade are columnar structured, and the both ends of the lampshade are connected with the lamp holder and the enclosing cover respectively, described Lampshade offers some air vents being in communication with the outside, and some air vents are uniformly distributed in the lampshade, the air vent For parallelogram hole；Heat-dissipating cylinder, the heat-dissipating cylinder are hollow-core construction, and the both ends of the heat-dissipating cylinder are connected with the lamp holder and the enclosing cover respectively, And the heat-dissipating cylinder is placed in the lampshade, the madial wall of the heat-dissipating cylinder sets some thermal columns to inner side protrusion, some The thermal column radially distributes to be prepared in the madial wall of the heat-dissipating cylinder, the heat-dissipating cylinder using radiating alloy, institute Heat-sink shell, heat-conducting layer and heat dissipating layer that radiating alloy includes being sequentially overlapped setting are stated, some thermal columns radially distribute In the madial wall of the heat-dissipating cylinder；The thermal column is coarser than its end away from the heat-dissipating cylinder close to the end of the heat-dissipating cylinder Portion；Some through holes are offered on the thermal column；Some LEDs, some LEDs are arranged at the heat-dissipating cylinder, and the heat-dissipating cylinder is located at two adjacent LEDs Between opening position offer heat emission hole, the heat emission hole is circular configuration；Some thermal columns away from the LED one End is connected with each other；The tubular type light fixture also includes reflecting layer, and the reflecting layer fits in the lateral wall of the heat-dissipating cylinder, some LEDs It is arranged at one side of the reflecting layer away from the heat-dissipating cylinder；Wherein, the heat-conducting layer of the radiating alloy, it includes each component of following mass parts：60 parts~65 parts of copper, aluminium 55 Part~60 parts, 0.8 part~1.2 parts of magnesium, 0.2 part~0.5 part of manganese, 0.05 part~0.3 part of titanium, 0.05 part~0.1 part of chromium, vanadium 0.05 Part~0.3 part~0.5 part and 0.1 part~0.3 part 0.3 part, silicon graphene；The heat dissipating layer of the radiating alloy, it includes The each component of following mass parts：88 parts~93 parts of aluminium, 5.5 parts~10.5 parts of silicon, 0.3 part~0.7 part of magnesium, copper 0.05 part~0.3 Part, 0.2 part~0.8 part of iron, 0.2 part~0.5 part of manganese, 0.05 part~0.3 part of titanium, 0.05 part~0.1 part of chromium, 0.05 part of vanadium~ 0.3 part and 5 parts~15 parts graphenes.
- 2. tubular type light fixture according to claim 1, it is characterised in that a diameter of 3mm~6mm of the heat emission hole.
- 3. tubular type light fixture according to claim 2, it is characterised in that a diameter of 4mm~5mm of the heat emission hole.
- 4. tubular type light fixture according to claim 3, it is characterised in that a diameter of 4.5mm of the heat emission hole.
- 5. tubular type light fixture according to claim 4, it is characterised in that the hole wall of the heat emission hole is additionally provided with radiating wire.
- 6. tubular type light fixture according to claim 1, it is characterised in that between two adjacent LEDs at intervals of 2mm~5mm.
- 7. tubular type light fixture according to claim 6, it is characterised in that between two adjacent LEDs at intervals of 3mm~4mm.
- 8. tubular type light fixture according to claim 7, it is characterised in that between two adjacent LEDs at intervals of 3.5mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510320966.8A CN104879673B (en) | 2015-06-11 | 2015-06-11 | Tubular type light fixture |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510320966.8A CN104879673B (en) | 2015-06-11 | 2015-06-11 | Tubular type light fixture |
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| Publication Number | Publication Date |
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| CN104879673A CN104879673A (en) | 2015-09-02 |
| CN104879673B true CN104879673B (en) | 2018-01-30 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201513774U (en) * | 2009-09-28 | 2010-06-23 | 林峻毅 | Internal heat dissipation flower type LED post-shaped lamp |
| CN104007797A (en) * | 2014-06-04 | 2014-08-27 | 吉首大学 | Computer cooling device |
| CN204372643U (en) * | 2015-02-09 | 2015-06-03 | 深圳市中电照明股份有限公司 | A kind of linear LED light source |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5254138B2 (en) * | 2009-07-01 | 2013-08-07 | 功彦 鈴木 | LED lighting equipment |
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2015
- 2015-06-11 CN CN201510320966.8A patent/CN104879673B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201513774U (en) * | 2009-09-28 | 2010-06-23 | 林峻毅 | Internal heat dissipation flower type LED post-shaped lamp |
| CN104007797A (en) * | 2014-06-04 | 2014-08-27 | 吉首大学 | Computer cooling device |
| CN204372643U (en) * | 2015-02-09 | 2015-06-03 | 深圳市中电照明股份有限公司 | A kind of linear LED light source |
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| CN104879673A (en) | 2015-09-02 |
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