CN104896337B - Straight lamp - Google Patents

Abstract

The invention provides a straight lamp. The straight lamp comprises a lamp cap, an outer cover, a lampshade, a radiating assembly, a radiating part, an LED lamp, an insulation barrel and a circuit assembly; a plurality of radiating holes are formed in the lampshade; the radiating assembly comprises a radiating plate and a radiating barrel; two ends of the radiating plate are respectively connected with the lamp cap and the outer cover; the radiating plate is provided with a first side surface and a second side surface; the radiating barrel is arranged on the first side surface; the radiating part comprises a propping plate and two radiating fin plates, wherein the two radiating fin plates are respectively connected with two ends of the propping plate; the propping plate is propped to the radiating barrel; one side surface of the propping plate, far away from the radiating barrel is propped to the lampshade; the radiating fin plates are propped to the inner sidewall of the lampshade and are communicated with the outside through the radiating holes; a plurality of radiating columns connected with the radiating barrel are arranged on the radiating fin plates. According to the straight lamp, the radiating assembly and the radiating part which are propped to each other are arranged; the LED lamp is mounted to the radiating assembly; the radiating assembly and the radiating part are coordinated to radiate, so that the radiating performance can be greatly improved.

Description

Straight lamp

Technical field

The present invention relates to lighting technical field, more particularly to a kind of straight lamp.

Background technology

Led (light emitting diode, light emitting diode) directly and efficiently can convert electrical energy into visible ray, and And have the service life up to tens thousand of hours～100,000 hour.LED lamp is referred to as the light fixture of light source using led, it is with matter The advantages of excellent, durable, energy-conservation and be referred to as the most frequently used lighting.In recent years develop rapidly with LED lamp technology, LED lamp Tool product has replaced original fluorescent lighting fixture substantially.

The basic structure of led is the p n knot of a quasiconductor, and when electric current flows through led element, the temperature of p n knot will Rise, and the temperature in p n interface be referred to as led junction temperature, be 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, the drawback that led straight lamp itself exists is that led straight lamp light efficiency is subject to the shadow of the junction temperature of led straight lamp Sound is larger, and higher junction temperature of chip will lead to light efficiency to occur being decreased obviously, and influence whether the service life of led straight lamp.By In LED lamp when luminous, the temperature of its own can constantly raise, in lasting illumination work, if the heat that LED lamp produces Can not exhale in time, it will cause the damage of LED lamp, the service life of impact LED lamp.Therefore, solve the radiating of LED lamp Problem is most important for the performance of lifting LED lamp.

However, existing led straight lamp still has that heat dispersion is poor, in particular by relatively high power When LED lamp is as light source, its heating problem is obvious all the more.

Content of the invention

Based on this it is necessary to provide a kind of straight lamp of good heat dispersion performance.

A kind of straight lamp, comprising:

Lamp holder,

Enclosing cover,

Lampshade, described lampshade is tubular construction, and the two ends of described lampshade are connected with described lamp holder and described enclosing cover respectively, institute The medial wall stating lampshade offers chute, and described lampshade offers some louvres；

Radiating subassembly, described radiating subassembly includes heat sink and heat-dissipating cylinder, the two ends of described heat sink respectively with described lamp Head and described enclosing cover connect, and described heat sink has first side and second side, and described heat-dissipating cylinder is arranged at described first side Face, described heat-dissipating cylinder is hollow-core construction, and the side edge of described heat sink is slideably positioned in described chute；

Radiating piece, described radiating piece includes supporting plate and two radiating wing plates, two described radiating wing plates respectively with described The two ends supporting plate connect, and the described plate that supports supported with described heat-dissipating cylinder, described support the one side away from described heat-dissipating cylinder for the plate Support with described lampshade, described radiating wing plate is supported with the medial wall of described lampshade, and described radiating wing plate passes through described dissipating Hot hole is in communication with the outside, and described radiating wing plate is provided with some thermal columns being connected with described heat-dissipating cylinder；

LED lamp, described LED lamp is arranged at the described second side of described heat sink；

Insulating cylinder, described insulating cylinder is placed in described heat-dissipating cylinder；

Circuit unit, described circuit unit is placed in described insulating cylinder.

Wherein in an embodiment, described thermal column is hollow-core construction.

Wherein in an embodiment, described thermal column is cylindrical structure.

Wherein in an embodiment, described louvre is circular port.

Wherein in an embodiment, a diameter of 5mm～10mm of described circular port.

Wherein in an embodiment, a diameter of 8mm～9mm of described circular port.

Wherein in an embodiment, a diameter of 8.5mm of described circular port.

Above-mentioned straight lamp passes through radiating subassembly and the radiating piece that setting mutually supports, and LED lamp is installed on radiating subassembly, Radiating subassembly and radiating piece work in coordination with radiating, can be greatly enhanced straight lamp heat dispersion.

Brief description

Fig. 1 is the structural representation of the straight lamp of an embodiment of the present invention；

Fig. 2 is the structural representation of another angle of straight lamp shown in Fig. 1；

Fig. 3 is the structural representation of the straight lamp of another embodiment of the present invention；

Fig. 4 is the structural representation of the straight lamp of another embodiment of the present invention；

Fig. 5 is the structural representation of the straight lamp of another embodiment of the present invention；

Fig. 6 is the structural representation of the straight lamp of another embodiment of the present invention.

Specific embodiment

For the ease of understanding the present invention, below with reference to relevant drawings, the present invention is described more fully.In accompanying drawing Give the better embodiment of the present invention.But, the present invention can realize however it is not limited to herein in many different forms Described embodiment.On the contrary, providing the purpose of these embodiments to be to make the disclosure is understood more Plus it is thoroughly 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 can also there is element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left ", For illustrative purposes only, being not offered as is unique embodiment for " right " and similar statement.

Unless otherwise defined, all of technology used herein and scientific terminology and the technical field belonging to the present invention The implication that technical staff is generally understood that is identical.The term being used in the description of the invention herein is intended merely to description tool The purpose of the embodiment of body is it is not intended that in limiting the present invention.Term as used herein " and/or " include one or more The arbitrary and all of combination of related Listed Items.

Refer to Fig. 1 and Fig. 2, straight lamp 10 includes: lamp holder 100, enclosing cover 200, lampshade 300, radiating subassembly 400, radiating Part 500, LED lamp 600, insulating cylinder 700 and circuit unit 800.Lamp holder 100, enclosing cover 200 are arranged at the two ends of lampshade 300, radiating Assembly 400, radiating piece 500, LED lamp 600, insulating cylinder 700 and circuit unit 800 are all placed in lampshade 300.

Refer to Fig. 1, the two ends of lampshade 300 are connected with lamp holder 100 and enclosing cover 200 respectively, that is, one end of described lampshade with Described lamp holder connects, and the other end is connected with described enclosing cover.See also Fig. 2, lampshade 300 be tubular construction, lampshade 300 interior Side wall offers chute 310.For example, described lamp holder is used for lamp socket mounted externally；And for example, described lamp holder be provided with slotting Pin, described contact pin is used for electrically connecting with outside lamp socket, provides power supply with the normal work to described LED lamp.

Refer to Fig. 2, radiating subassembly 400 includes heat sink 410 and heat-dissipating cylinder 420, the two ends of heat sink 410 respectively with lamp 100 and enclosing cover 200 connect, that is, one end of described heat sink is connected with described lamp holder, and the other end is connected with described enclosing cover.Radiating Plate 410 has first side 411 and second side 412, and heat-dissipating cylinder 420 is arranged at first side 411.For example, heat-dissipating cylinder 420 is Hollow-core construction；And for example, heat-dissipating cylinder 420 is hollow square tube shape structure；And for example, lampshade 300 is hollow square tube shape structure；Preferably, As shown in Fig. 2 its edge has arc angle.

Refer to Fig. 2, the side edge of heat sink 410 is slideably positioned in chute 310, when needing to pacify radiating subassembly 400 When being attached in lampshade 300, by the side edge of heat sink 410 along chute 310 be slipped in lampshade 300 when, so, can To be greatly enhanced the convenience of installation operation, and radiating subassembly 400 can be made more to be stably attached in lampshade 300.

In order to improve the convenience of installation operation further, and radiating subassembly is made more to be stably attached in lampshade, example As described lampshade is square tubular structure, refers to Fig. 2, two relative medial walls of described lampshade offer two institutes respectively State chute, two side edge of described heat sink are slideably positioned in two described chutes respectively, so, can improve further The convenience of installation operation, and so that radiating subassembly is more stably attached in lampshade.

Refer to Fig. 2, radiating piece 500 includes supporting plate 510 and two radiating wing plates 520, and two radiating wing plates 520 are respectively It is connected with the two ends supporting plate 510.Support plate 510 to support with heat-dissipating cylinder 420, so, the heat that heat-dissipating cylinder 420 absorbs can be fast Speed and be transferred in time support plate 510, afterwards, support plate 510 absorption heat again pass through radiate wing plate 520 thus diffusing to Whole radiating piece 500, such that it is able to effectively improve cooling surface area.

Refer to Fig. 2, the one side supporting plate 510 away from heat-dissipating cylinder 420 is supported with lampshade 300, radiate wing plate 520 and lamp Cover 300 supports.So, radiating piece 500 can play to heat-dissipating cylinder 420 and preferably fix supporting role.

Refer to Fig. 2, LED lamp 600 is arranged at the second side 412 of heat sink 410.Luminous generation during LED lamp 600 work Heat can be transferred to heat sink 410, afterwards, then heat-dissipating cylinder 420 is transferred to by heat sink 410, finally, then by heat-dissipating cylinder 420 are transferred to radiating piece 500, and during heat transfer, heat sink 410, heat-dissipating cylinder 420 and radiating piece 500 all can be to skies Dissipated heat in gas medium.As such, it is possible to optimization heat dissipation path, and cooling surface area can be increased.

Refer to Fig. 2, insulating cylinder 700 is placed in heat-dissipating cylinder 420, circuit unit 800 is placed in insulating cylinder 700, this Sample, can make circuit unit 800 be placed in insulating cylinder 700, to avoid circuit unit 800 to contact with heat-dissipating cylinder 420, leak The problem of electricity, thus improve the security performance of described straight lamp.

In order to improve the security performance of straight lamp further, for example, refer to Fig. 3, the medial wall of insulating cylinder 700 is provided with Some support columns 710, circuit unit 800 is supported with the end of support column 710；And for example, described support column is cylindrical-shaped structure；Again If the end that described support column is supported with described circuit unit is hemispherical dome structure；And for example, the material of described support column is insulation Material；And for example, the material of described support column is rubber；And for example, some support columns are set；And for example, some described support columns are uniform It is distributed in the medial wall of described heat-dissipating cylinder, fixing described circuit unit, Jin Erke can preferably be supported by described support column To improve the security performance of straight lamp further.

Overall structure in order to make described straight lamp further is more firm, for example, refers to Fig. 2, heat-dissipating cylinder 420 away from First side 411 is provided with two projections 421, supports plate 510 and protrudes formation support division 511, support division 511 and radiating to side Cylinder 420 supports and is located between two projections 421；And for example, it is provided with interval between support division 511 and projection 421；And for example, also Setting filling block 422, filling block 422 is supported with the lateral wall of insulating cylinder 700 and the medial wall of heat-dissipating cylinder 420 respectively；And for example, if Put some described filling blocks；And for example, some described filling blocks are uniformly distributed in the lateral wall of described insulating cylinder and described heat-dissipating cylinder Medial wall between；And for example, the material of described filling block is insulant；And for example, the material of described filling block is rubber, such as This, can make the overall structure of described straight lamp more firm further.

In order to improve the simple and convenient property of the installation operation of described straight lamp, for example, Fig. 2, the inner side of lampshade 300 are referred to Wall is additionally provided with elastic buckles 330, and offers stopper slot 340, and chute 310 is located between elastic buckles 330 and stopper slot 340, Draw-in groove 411a and positive stop strip 412a, positive stop strip are respectively arranged with the first side 411 of heat sink 410 and second side 412 412a is slideably positioned in stopper slot 340, and the part of elastic buckles 330 is embedded in draw-in groove 411a, so, the elastic buckles of lampshade 300 330 and stopper slot 340 respectively spacing guide effect can be played to the draw-in groove 411a and positive stop strip 412a of heat sink 410, thus The simple and convenient property of the installation operation of described straight lamp can be improved.

In order to improve the simple and convenient property of the installation operation of described straight lamp further, for example, described chute is tied for bar shaped Structure；And for example, described stopper slot is strip structure；And for example, described elastic buckles have semicircular cross section；And for example, described elasticity Button is provided with projection, and described projection is embedded at described draw-in groove；And for example, some described projections are set；And for example, between some described projections Every being distributed in described elastic buckles, so, the simple and convenient property of the installation operation of described straight lamp can be improved further.

In order to improve the heat dispersion of described straight lamp further, for example, Fig. 4, radiating wing plate 520 and lampshade are referred to 300 medial wall supports, and radiating wing plate 520 is additionally provided with fin 521, and fin 521 passes through lampshade 300 and is partly placed on Outside lampshade 300；And for example, described fin is the flaky texture with rectangle plane；And for example, described fin is to have rectangle The flaky texture of cambered surface；And for example, some described fin are set；And for example, some described fin are spaced apart dissipates in described Hot wing plate；And for example, some described fin are uniformly distributed in described radiating wing plate, and so, described radiating wing plate passes through to arrange institute State fin, effectively can increase cooling surface area, and stretched out outside described lampshade by described fin, being conducive to will be described In the extremely outside air dielectric of heat transfer in lampshade, such that it is able to improve the heat dispersion of described straight lamp further.

In order to improve the heat dispersion of described straight lamp further, for example, refer to Fig. 6, lampshade 300 offers some dissipating Hot hole 350, radiating wing plate 520 is supported with the medial wall of lampshade 300, and the wing plate 520 that radiates is passed through louvre 350 and connected with extraneous Logical, see also Fig. 5, radiating wing plate 520 is provided with some thermal columns 522 being connected with heat-dissipating cylinder 420；And for example, described scattered Plume is hollow-core construction；And for example, described thermal column is cylindrical structure；And for example, described louvre is circular port；And for example, institute State a diameter of 5mm～10mm of circular port；And for example, a diameter of 8mm～9mm of described circular port；And for example, described circular port is straight Footpath is 8.5mm, so, can improve the heat dispersion of described straight lamp further.

Above-mentioned straight lamp 10 passes through radiating subassembly 400 and the radiating piece 500 that setting mutually supports, and LED lamp 600 is installed In radiating subassembly 400, radiating subassembly 400 and radiating piece 500 work in coordination with radiating, can be greatly enhanced straight lamp 10 heat dispersion.

In order to improve the heat dispersion of described straight lamp further, for example, described radiating subassembly and described radiating piece are all adopted Prepared with radiating alloy, described radiating alloy includes heat-sink shell, heat-conducting layer and the heat dissipating layer being sequentially overlapped setting；And for example, Described heat-sink shell, described heat-conducting layer be identical with the material of described heat dissipating layer or different setting；And for example, described LED lamp is arranged at Described heat-sink shell；And for example, the heat-conductive characteristic of described heat-sink shell, described heat-conducting layer and described heat dissipating layer successively decreases successively, defines Heat-conductive characteristic gradient, thus optimize further described radiating alloy heat dissipation path, drastically increase radiating subassembly and The heat dispersion of described radiating piece, and then improve the heat dispersion of described straight lamp, so, it is possible to meet the big institute of caloric value State the radiating requirements of straight lamp.

For example, the straight lamp of an embodiment of the present invention, wherein, described radiating alloy described heat-sink shell, it include as Each component of lower mass parts:

90 parts～92 parts of copper, 2 parts～4.5 parts of aluminum, 1 part～2.5 parts of magnesium, 0.5 part～0.8 part of nickel, 0.1 part～0.3 part of ferrum, 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, 0.5 part～0.8 part of vanadium, silicon 0.8 part～15 parts and 0.5 part～2 parts Graphenes.

First, what the copper (cu) that above-mentioned heat-sink shell contains 90 parts～92 parts can make heat-sink shell has preferable heat absorption energy. When copper mass parts be 90 parts～92 parts when, the coefficient of heat conduction of heat-sink shell can reach more than 365w/mk, can rapidly by The heat that LED lamp produces siphons away, and then is dispersed in making even heat in the overall structure of heat-sink shell, to prevent heat in led Accumulate on contact position between lamp and heat-sink shell, cause the generation of hot-spot phenomenon.And, the density of heat-sink shell is less than pure The density of copper, so can mitigate the weight of heat-sink shell effectively, more conducively install and manufacture, also greatly reduce into simultaneously This.Wherein, the definition of the coefficient of heat conduction is: per unit length, every k, can transmit the energy of how many w, and unit is w/mk, wherein " w " refers to thermal power unit, and " m " represents long measure rice, and " k " is absolute temperature units, this numerical value bigger explanation heat absorption capacity Better.Additionally, by adding 0.5 part～2 parts of Graphene, its coefficient of heat conduction can be effectively improved, and then improve described The heat absorption capacity of heat-sink shell.

Secondly, heat-sink shell contain the aluminum that mass parts are 2 parts～4.5 parts, 1 part～2.5 parts of magnesium, 0.5 part～0.8 part of nickel, 0.1 part～0.3 part of ferrum, 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.With respect to fine copper material, the ductility of heat-sink shell, toughness, intensity with And resistance to elevated temperatures all improved significantly, and not easy-sintering；So, when LED lamp is installed on heat-sink shell so that it may in case The high temperature that only LED lamp produces causes to heat-sink shell to damage, and, there is preferable ductility, toughness and intensity can also Heat-sink shell is prevented to be subject to excessive stresses to lead to deform when installing described LED lamp.Wherein, heat-sink shell contains mass parts is 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 be 1.5 parts～ 4.5 parts of vanadium (v) can suppress heat-sink shell crystal grain to grow up, and obtains more uniform tiny grain structure, 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 be 0.5 part～ 0.8 part of titanium (ti), so that 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, Can be on the premise of not affecting heat-sink shell heat absorption capacity, the effectively hardness of lifting heat-sink shell and abrasion resistance.But, manage through multiple Find by analysis and experiment evidence, when the quality of silicon in heat-sink shell is too many, such as, when mass percent is more than more than 15 parts, can make The appearance distribution black particles of heat-sink shell, and ductility reduction, are unfavorable for the production molding of heat-sink shell.

For example, the straight lamp of an embodiment of the present invention, wherein, described radiating alloy described heat-conducting layer, it include as Each component of lower mass parts:

60 parts～65 parts of copper, 55 parts～60 parts of aluminum, 0.8 part～1.2 parts of magnesium, 0.2 part～0.5 part of manganese, titanium 0.05 part～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 aluminum of the copper that mass parts are 60 parts～65 parts and 55 parts～60 parts, so that The coefficient of heat conduction of heat-conducting layer is maintained at 320w/mk～345w/mk, described in ensureing that heat-conducting layer can will absorb by heat-sink shell The heat that LED lamp produces is quickly transmitted to heat dissipating layer, and then prevents heat from piling up on heat-conducting layer, causes hot-spot phenomenon Produce.With respect to prior art, merely adopt price costly and the larger copper of quality, above-mentioned heat-conducting layer both can ensure that soon The heat transfer of heat-sink shell to heat dissipating layer, is had the advantages that lighter weight, to be easily installed casting, price less expensive by speed again.With When, with respect to prior art, merely adopt the poor aluminium alloy of radiating effect, above-mentioned heat-conducting layer has more preferably conductivity of heat Energy.

Secondly, by adding 0.1 part～0.3 part of Graphene, the heat conductivility of described heat-conducting layer can be greatly enhanced, Preferably by the heat transfer passing over from heat-sink shell to heat dissipating layer.

Finally, heat-conducting layer contain the magnesium that mass parts are 0.8 part～1.2 parts, 0.2 part～0.5 part of manganese, 0.05 part～0.3 The silicon of the titanium of part, 0.05 part～0.1 part of chromium, 0.05 part～0.3 part of vanadium and 0.3 part～0.5 part, thus improve heat-conducting layer Mechanical performance and resistance to elevated temperatures, e.g., mechanical performance include but is not limited to yield strength, tensile strength.For example, heat-conducting layer The magnesium being 0.8 part～1.2 parts containing mass parts, can give heat-conducting layer yield strength and tensile strength to a certain extent, by In radiating alloy in the fabrication process, need to be integrally formed heat-sink shell, heat-conducting layer and heat dissipating layer entirety punching press, this is accomplished by Heat dissipating layer has stronger yield strength, to prevent heat dissipating layer to be subject to excessive punching press stress to produce irreversible shape in process Become, and then guarantee the proper heat reduction performance of alloy that radiates.When the relative mass of magnesium is too low, e.g., when mass parts are less than 0.8 part, 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 Ductility and the heat conductivility dramatic decrease of heat-conducting layer when 1.2 parts, can be made again.For example, heat-conducting layer contains mass parts is 0.2 Part～0.8 part of ferrum, the higher resistance to elevated temperatures of heat-conducting layer and high temperature resistant mechanical performance can be given, beneficial to the processing of heat-conducting layer Casting.

For example, the straight lamp of an embodiment of the present invention, wherein, described radiating alloy described heat dissipating layer, it include as Each component of lower mass parts:

88 parts～93 parts of aluminum, 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 ferrum～ 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 of vanadium and 5 parts～15 Part Graphene.

First, above-mentioned heat dissipating layer contains the aluminum that mass parts are 88 parts～93 parts, so that the coefficient of heat conduction of heat dissipating layer It is maintained at 200w/mk～220w/mk, when the heat that LED lamp produces is after heat-sink shell and heat conduction layer segment radiate, remaining When heat passes to heat dissipating layer by heat-conducting layer again, heat dissipating layer may insure and dissipated these remaining heats by consistent Walk, and then prevent heat from piling up on heat dissipating layer, cause hot-spot phenomenon.

Secondly, by adding 5 parts～15 parts of Graphene, the heat dispersion of described heat dissipating layer can be effectively improved, enter And can rapidly will be lost in the air dielectric in the external world from the heat that described heat-conducting layer is transmitted to.

Finally, heat dissipating layer contain the silicon that mass parts are 5.5 parts～10.5 parts, 0.3 part～0.7 part of magnesium, 0.05 part～0.3 The copper of part, 0.2 part～0.8 part of ferrum, 0.2 part～0.5 part of manganese, 0.05 part～0.3 part of titanium, 0.05 part～0.1 part of chromium 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 and is The copper of 5.5 parts～10.5 parts of silicon and 0.05 part～0.3 part is it can be ensured that heat dissipating layer has good mechanical properties and lighter weight Advantage, at the same time it can also improve the heat-conductive characteristic of heat dissipating layer further, further ensure that heat dissipating layer can be by via heat absorption Scatter away after-heat consistent after layer and heat-conducting layer transmission, and then prevent heat from piling up on heat dissipating layer, cause office Portion's superheating phenomenon.

In order to improve the tensile strength of described heat dissipating layer further, for example, described heat dissipating layer also includes mass parts for 0.8 part ～1.2 parts of lead (pb), when the lead that heat dissipating layer contains 0.8 part～1.2 parts can improve the tensile strength of heat dissipating layer, so, can To prevent from working as to be cast heat dissipating layer striking out radiating fin, that is, during laminated structure, due to being pullled stress by excessive punching press And rupture.

In order to improve the high temperature oxidation resistance of described heat dissipating layer further, for example, described heat dissipating layer also includes mass parts Niobium (nb) for 0.05 part～0.08 part, when the mass parts of niobium are more than 0.05 part, can be greatly enhanced the antioxygen of heat dissipating layer Change performance it will be understood that heat dissipating layer is as maximum with contacting external air area part in LED street lamp radiator, its antagonism High temperature oxidation resistance requires higher.However, when the mass parts of niobium are more than 0.08 part, the magnetic of heat dissipating layer can be led to drastically to increase Plus, impact can be produced on the miscellaneous part in straight lamp.

In order to improve the heat dispersion of described heat dissipating layer further, 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, can play preferable effect to the raising of the heat dispersion of heat dissipating layer Really, 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 to increase again.

Above-mentioned radiating alloy passes through to be sequentially overlapped the described heat-sink shell of setting, described heat-conducting layer and described heat dissipating layer, and described The heat-conductive characteristic of heat-sink shell, described heat-conducting layer and described heat dissipating layer successively decreases successively, defines heat-conductive characteristic gradient, compared to For fine copper material, on the premise of guaranteeing heat dispersion, weight is greatly lowered；Compared to the aluminium alloys existing a large amount of on 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 Conjunction is formed, the straight lamp that can implement.

Each technical characteristic of embodiment described above can arbitrarily be combined, for making description succinct, not to above-mentioned reality The all possible combination of each technical characteristic applied in example is all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all it is considered to be the scope of this specification record.

The above embodiment only have expressed the several embodiments of the present invention, and its description is more concrete and detailed, but Therefore the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that the ordinary skill people for this area For member, without departing from the inventive concept of the premise, some deformation can also be made and improve, these broadly fall into the present invention's Protection domain.Therefore, the protection domain of patent of the present invention should be defined by claims.

Claims (7)

1. a kind of straight lamp, comprising: lamp holder, enclosing cover, lampshade, radiating subassembly, LED lamp, circuit unit, the two ends of described lampshade are divided It is not connected with described lamp holder and described enclosing cover, described radiating subassembly includes heat sink and heat-dissipating cylinder, the two ends of described heat sink are divided It is not connected with described lamp holder and described enclosing cover, described heat sink has first side and second side, described heat-dissipating cylinder is arranged at Described first side, described heat-dissipating cylinder is hollow-core construction, and described LED lamp is arranged at the described second side of described heat sink, its It is characterised by,

Described lampshade is tubular construction, and the medial wall of described lampshade offers chute, and described lampshade offers some louvres；

The side edge of described heat sink is slideably positioned in described chute；

Described straight lamp also includes radiating piece, and described radiating piece includes supporting plate and two radiating wing plates, two described radiating wings Plate is connected with the described two ends supporting plate respectively, and the described plate that supports is supported with described heat-dissipating cylinder, and the described plate that supports dissipates away from described The one side of hot cylinder is supported with described lampshade, and described radiating wing plate is supported with the medial wall of described lampshade, and described radiating wing Plate is in communication with the outside by described louvre, and described radiating wing plate is provided with some thermal columns being connected with described heat-dissipating cylinder；

Described LED lamp is arranged at the described second side of described heat sink；

Described straight lamp also includes insulating cylinder, and described insulating cylinder is placed in described heat-dissipating cylinder；

Described circuit unit is placed in described insulating cylinder.

2. straight lamp according to claim 1 is it is characterised in that described thermal column is hollow-core construction.

3. straight lamp according to claim 1 is it is characterised in that described thermal column is cylindrical structure.

4. straight lamp according to claim 1 is it is characterised in that described louvre is circular port.

5. straight lamp according to claim 4 is it is characterised in that a diameter of 5mm～10mm of described circular port.

6. straight lamp according to claim 5 is it is characterised in that a diameter of 8mm～9mm of described circular port.

7. straight lamp according to claim 6 is it is characterised in that a diameter of 8.5mm of described circular port.