A kind of heat radiation light fixture
Technical field
The utility model relates to light fixture, more particularly, relates to a kind of heat radiation light fixture with excellent heat dispersion performance.
Background technology
In today of global energy growing tension, countries in the world are all at the various energy-conserving products of positive searching, or develop various new forms of energy.Especially at lighting field, LED (light emitting diode) is because its energy-saving and environmental protection, advantages such as the life-span is long, light efficiency is high, radiationless, shock resistance, and gets most of the attention.
Though LED uses as illumination and generally had an optimistic view of, its heat dissipation problem and luminous efficiency problem are perplexing the manufacturer of LED always and are using the merchant, and especially heat dissipation problem is directly connected to a series of problems such as its brightness, light decay, stability, service life.
Existing heat dissipation, energy conservation lamp also only is to use lower powered LED as light source, and can't reach the requirement of illumination.Adopt high-power LED then to tend to exist heat radiation not enough, maybe can't reach instructions for use and make lamp life reduce.And some are when using high-power LEDs as light source, often need to dispose complicated radiator structure or cooling system independently, cause the volume of light fixture too huge or cost is too expensive, and can't excellent popularization use.
The utility model content
The technical problems to be solved in the utility model is, at the defective of the light fixture radiating effect difference of prior art, provide a kind of can be fast with the outside conduction heat radiation light fixture that distribute of heat.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of heat radiation light fixture is provided, comprises radiating shell, power supply module and the light source assembly of hollow, described power supply module is electrically connected with described light source assembly; Described power supply module inserts described radiating shell and is fixedly connected with described radiating shell; Described light source assembly is installed in the described radiating shell, and contacts with described radiating shell heat conduction;
Radiating shell comprise hollow main body, be arranged on some long radiating ribs and short radiating ribs on the described external side of main body circumference; The top of described long radiating ribs is connected with described main body top, and the bottom of each described long radiating ribs connects away from described main body and by heat dissipating ring; The position of described short radiating ribs is corresponding with the position of described light source assembly, and extends to described heat dissipating ring from described main body outer wall.
In heat radiation light fixture of the present utility model, described long radiating ribs and short radiating ribs are evenly arranged on the described external side of main body circumference, and described long radiating ribs is spaced apart with short radiating ribs; Perhaps, per two described long radiating ribs and a described short radiating ribs are spaced apart.
In heat radiation light fixture of the present utility model, described light source assembly comprises the transmission element that is installed in LED lamp plate that is electrically connected with described power supply module in the described main body and the lower openings place that is installed in described main body; Described LED lamp plate contacts with described main body heat conduction.
In heat radiation light fixture of the present utility model, described transmission element is the diffuser that has syndeton; Perhaps, described transmission element comprises arc or spherical diffuser and described diffuser is installed in securing member on the described main body that described diffuser is that buckle is connected with described securing member.
In heat radiation light fixture of the present utility model, described power supply module comprises outer casing of power supply, the interior driving power of described outer casing of power supply and the casing cover of the described outer casing of power supply of capping is set.
In heat radiation light fixture of the present utility model, the top of described outer casing of power supply is provided with the connection lamp holder, is provided with clamping mechanism between the bottom of described outer casing of power supply and the described main body inner wall.
In heat radiation light fixture of the present utility model, described clamping mechanism is included in the outstanding buckle of described main body inner wall and that offer and the described bayonet socket that is clasped on described outer casing of power supply; Perhaps,
Described clamping mechanism is included in the outstanding buckle of described outer casing of power supply outer wall and that offer and the described bayonet socket that is clasped on described main body inner wall.
In heat radiation light fixture of the present utility model, the root of described lamp holder is provided with air-vent.
In heat radiation light fixture of the present utility model, the high heat conduction aluminium alloy radiating shell that described radiating shell is one of the forming.
In heat radiation light fixture of the present utility model, be provided with the heat conduction installing plate of installing for described light source assembly in the described main body.
Enforcement the utlity model has following beneficial effect: the long radiating ribs by the radiating shell outside can be delivered to radiating ribs from main body inner wall fast with the heat of light source assembly and shed; And that short radiating ribs is arranged on the light source assembly side is just outside, has reduced heat transfer distance, can be fast the heat of light source assembly be delivered to heat dissipating ring, sheds by cross-ventilation through long radiating ribs.In addition, two kinds of radiating ribs adopt the height staggered designs, can effectively accelerate cross-ventilation, reduce the whole temperature rise of light fixture.
In addition, radiating shell can adopt the casting of high heat conduction aluminium alloy high pressure integrally formed, avoids the interface resistance that produces because of many interface, effectively accelerates the heat conduction.Outer casing of power supply and supporting outer casing of power supply lid can be fixed on driving power in the outer casing of power supply, simultaneously good electrical insulation properties are arranged again, make light fixture not have the danger of electric shock.The air-vent at top can shed the heat that power supply produces fast, has effectively reduced the whole temperature rise of light fixture.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the decomposing schematic representation of the utility model heat radiation light fixture;
Fig. 2 is the assembling cross-sectional schematic of the utility model heat radiation light fixture;
Fig. 3 is the cross-ventilation pattern diagram of the utility model heat radiation light fixture;
Fig. 4 is the scheme of installation of the utility model heat radiation light fixture;
Fig. 5 is the schematic diagram of radiating shell of a kind of form of the utility model heat radiation light fixture;
Fig. 6 is the schematic diagram of radiating shell of the another kind of form of the utility model heat radiation light fixture;
Fig. 7 is the schematic diagram of transmission element of the another kind of form of the utility model heat radiation light fixture;
Fig. 8 is the schematic diagram of transmission element of the another kind of form of the utility model heat radiation light fixture.
The specific embodiment
To shown in Figure 6, is a specific embodiment of heat radiation light fixture of the present utility model as Fig. 1, comprises radiating shell 10, power supply module and the light source assembly of hollow.Power supply module and light source assembly are installed on the radiating shell 10, are dispelled the heat by radiating shell 10, and are that light source assembly is powered by power supply module.
As shown in the figure, this power supply module bottom is inserted in the radiating shell 10, and be fixedly connected with radiating shell 10. in the present embodiment, this power supply module comprises outer casing of power supply 31, driving power 32 in the outer casing of power supply 31 is set, and the casing cover 33. of capping outer casing of power supply 31 is provided with connection lamp holder 34 on the top of outer casing of power supply 31, be used to insert power supply, this connection lamp holder 34 can select for use the lamp holder 34. of existing various standards to be provided with air-vent 35 at root that connects lamp holder 34 and the position that outer casing of power supply 31 joins, the heat that produces in the time of driving power in the outer casing of power supply 31 32 can being worked, distribute fast, reduce the whole temperature rise of light fixture effectively, guarantee stability.
Driving power 32 can be fixed in the outer casing of power supply 31 by variety of ways such as screw, rivet, bolts, and is enclosed in the outer casing of power supply 31 by outer casing of power supply 31 lids.These outer casing of power supply 31 lids can be fixed on the outer casing of power supply 31 by buckle, screw, bolt, rivet etc., thereby driving power 32 is enclosed in the outer casing of power supply 31.This driving power 32 is electrically connected with lamp holder 34, for light source assembly provides stable working power.Outer casing of power supply 31 covers and can be provided with perforate, is used to provide driving power 32 to provide the path that passes be electrically connected (as lead, the contact etc.) of light source assembly.
As shown in Figure 1, 2, fixedly connected by clamping mechanism between main body 11 inwalls of the bottom of this outer casing of power supply 31 and radiating shell 10.In the present embodiment, this clamping mechanism is included in outstanding buckle 111 of main body 11 inwalls of radiating shell 10 and the bayonet socket of offering 311 on outer casing of power supply 31.In the time of in outer casing of power supply 31 is inserted into radiating shell 10, buckle 111 snaps onto in the bayonet socket 311 of outer casing of power supply 31, thereby realizes outer casing of power supply 31 fastenings on outer casing of power supply 31.This structure has avoided traditional screw to fix, and is easy to assembly, quick.
Understandable, the form of clamping mechanism can be adjusted, and for example is buckled in outer casing of power supply 31 outer walls and gives prominence to, corresponding, be located on main body 11 inwalls of radiating shell 10 with the bayonet socket that is clasped.
Further, the inwall of the outside wall surface of outer casing of power supply 31 and radiating shell 10 can be designed to have certain taper, installs thereby be convenient to insert.
This light source assembly comprises LED lamp plate 51 that is installed in radiating shell 10 main bodys 11 and the transmission element 52 that is installed in the lower openings place of main body 11.This LED lamp plate 51 is electrically connected with power supply module, and as light source, its version can adopt existing various LED lamp plate 51.This LED lamp plate 51 can be installed in the radiating shell 10 by screw, bolt, rivet, buckle or by the modes such as roof pressure of transmission element 52.Between this LED lamp plate 51 and radiating shell 10 main bodys 11 directly heat conduction contact, thereby the heat of generation can be directly delivered on the radiating shell 10 when making 51 work of LED lamp plate.
Understandable, can also be provided with the heat conduction installing plate in radiating shell 10 main bodys 11, install for LED lamp plate 51, thereby the heat that LED lamp plate 51 is produced is delivered to the heat conduction installing plate, is delivered on radiating shell 10 main bodys 11 again; Also can carry out heat conduction so that the edge of LED lamp plate 51 directly directly contacts with the inwall of radiating shell 10 main bodys 11.
This transmission element 52 can use the material of high-transmittance to make, and the frosted processing can be carried out in the surface.Inwall at the opening of radiating shell 10 main bodys 11 can be provided with screw thread, corresponding, also be provided with screw thread on the transmission element 52, by threaded engagement transmission element 52 is installed on the radiating shell 10.Certainly, the syndeton between transmission element 52 and the radiating shell 10 can also be various syndetons such as buckle, screw, bolt, riveted joint.
Shown in Fig. 7,8, be the schematic diagram of other two kinds of forms of transmission element 52.This transmission element 52 comprises arc or spherical diffuser 521 and diffuser 521 is installed in securing member 522 on the main body 11.Diffuser 521 is connected, is threaded or be welded to connect etc. with the buckle that is connected between the securing member 522.The sheen processing can be carried out by shining line, frosted etc. in the surface of diffuser 521, makes the bright dipping of light fixture reach the perfect effect of even, soft, no aperture bright spot.
As shown in the figure, this radiating shell 10 comprises the main body 11 of hollow, being arranged on the some long radiating ribs 12 on the outer circumference of main body 11 and the top of short radiating ribs 13. these length radiating ribs 12 is connected with main body 11 tops, the bottom of each long radiating ribs 12 connects away from main body 11 and by heat dissipating ring 14, thereby formation air flow spaces, accelerate distributing of heat. the position of short radiating ribs 13 is corresponding with the position of light source assembly, and extend to heat dissipating ring 14 from main body 11 outer walls, reduced heat transfer distance, the heat that produces in the time of light source assembly can being worked is delivered to heat dissipating ring 14 fast, and to dispel the heat by long radiating ribs 12. long radiating ribs 12 and short radiating ribs 13 have adopted the height staggered designs, can accelerate cross-ventilation effectively, reduce the whole temperature rise of light fixture.
Shown in Fig. 5,6, long radiating ribs 12 and short radiating ribs 13 are evenly arranged on the outer circumference of main body 11, and each long radiating ribs 12 is spaced apart with each short radiating ribs 13, as shown in Figure 5; Perhaps, per two long radiating ribs 12 and a short radiating ribs 13 are spaced apart, as shown in Figure 6, thereby can effectively utilize the space, carry out quick heat radiating.
Further, this radiating shell 10 can adopt high heat conduction aluminium alloy, and it is one-body molded to carry out high die casting, avoids the interface resistance that produces because of many interface, accelerates the heat conduction effectively, better improves radiating effect.
During work, the luminous generation heat of LED lamp on the LED lamp plate 51, be directly delivered to the inwall of radiating shell 10 by LED lamp plate 51, then, the part heat is directly delivered on heat radiation main body 11 and the long radiating ribs 12 and dispels the heat, and the part heat is delivered on the heat dissipating ring 14 by short radiating ribs 13, and dispels the heat by long radiating ribs 12, the bang path of heat is short, and radiating rate is fast.Its air-flow direction is shown in figure hollow core arrow, and hot conduction orientation is shown in filled arrows among the figure.And, be crisscross arranged by the height of long radiating ribs 12 with weak point radiating ribs 13, can accelerate cross-ventilation effectively, improve radiating rate, effectively reduce the whole temperature rise of light fixture.