CN202501269U

CN202501269U - LED down lamp

Info

Publication number: CN202501269U
Application number: CN2012201056157U
Authority: CN
Inventors: 张海
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-20
Filing date: 2012-03-20
Publication date: 2012-10-24
Anticipated expiration: 2022-03-20

Abstract

The utility model relates to an LED down lamp, which comprises an LED light source module and a casing. The LED light source module comprises a plurality of LED lamp beads configured with lenses and an aluminum substrate. The LED lamp beads are electrically connected on the aluminum substrate. The aluminum substrate is fixed on the casing, and the power supply line is guided out via a through hole in the casing. A cooling tube extends from the rear end of the casing. A plurality of main cooling pieces are radiated to the surrounding by the cooling tube. More than two sub cooling pieces extend from rear ends of the main cooling pieces. According to the LED down lamp, the heat conduction gaps between the cooling pieces are ensured and at the same time the area of the cooling pieces are increased, and thus the cooling efficiency is greatly increased.

Description

A kind of LED Down lamp

Technical field

The utility model relates to a kind of light fixture, relates in particular to a kind of LED Down lamp.

Background technology

The LED Down lamp belongs to the directional type lighting, has only its opposite just can receive light, and beam angle belongs to optically focused, and light collects the Shen, and the light and shade contrast is strong, and outstanding more illuminated object more sets off out required ambiance.Heat dissipation problem is the technical barrier of this LED Down lamp development of restriction always, and LED lamp designers have between life of product and radiating effect, carry out balance for this reason.Existing LED Down lamp generally comprises led light source module and optical processing unit, and at the back side of led light source module one heat abstractor is set.Said heat abstractor is generally a plurality of fin, adopts the mode of free convection to dispel the heat.In order to improve radiating effect, there is the inventor to propose on heat abstractor, to set up the graphite radiating piece, like application number: the LED Down lamp of 201020125022.8 disclosed this enhance heats.Said graphite radiating piece is arranged on back of circuit board, and places in the cavity of fin composition.Said scheme improves radiating effect to a certain extent, has prolonged the life-span of light fixture.Though but joining of graphite radiating piece lets the radiating effect of radiator more go a step further, on light fixture, increase the graphite radiating piece and can increase cost with corresponding fixed structure.And because the defective of this Down lamp fin itself, radiating effect also is to be worth discussion.Therefore, the better LED Down lamp of a kind of radiating effect being provided is the technical problem that those skilled in the art press for solution.

The utility model content

The technical problem that the utility model will solve provides a kind of LED Down lamp, and said LED Down lamp can further improve radiating effect, prolongs the life-span of light fixture.

In order to solve above technical problem, the utility model is taked following technical scheme.

A kind of LED Down lamp comprises led light source module and housing,

It is characterized in that said led light source module comprises that several dispose lensed LED lamp pearl and aluminium base, said LED lamp pearl is connected electrically on the said aluminium base, and said aluminium base is fixed on the said housing and through being arranged on the through hole extracting power supply cord on the housing,

Heat-dissipating cylinder is extended in the rear end of said housing, said heat-dissipating cylinder to around give off plural main fin, the end of each said main fin extends plural secondary fin.

Adopt the utility model of such scheme, on the basis that guarantees the heat conduction space between the fin, increased the area of fin, greatly increased radiating efficiency.

In this LED Down lamp of the utility model, said LED Down lamp also comprises the pallet that is connected on the said housing, and said pallet has edge-on limit, and said edge-on limit is provided with several connecting holes, and said connecting hole is provided with torque spring.Through this support holder structure, the LED Down lamp of the utility model can be suspended on preposition, and the illumination of different angles is provided.

In this LED Down lamp of the utility model, said heat-dissipating cylinder has the endoporus coaxial with said through hole.Said endoporus can increase radiating efficiency, and can be used to introduce power line.

The beneficial effect of implementing the utility model is: the utility model has utilized the space in the heat-dissipating cylinder outside dexterously, in equal space, has increased area of dissipation, has cancelled extra radiator structure, has reduced cost.

Description of drawings

Fig. 1 is the sketch map under a kind of embodiment of this LED Down lamp of the utility model;

Fig. 2 is the partial view at the A place of Fig. 1;

Fig. 3 is the explosive view under another visual angle of Fig. 1;

Fig. 4 is the cutaway view of Fig. 1, has mainly showed a kind of preferred fixed structure of LED lamp pearl.

Part description of reference numerals: through hole 101, tailstock 102, face shield 103, end cap 104, LED lamp pearl 201, aluminium base 202, lens 203, power line 204, heat-dissipating cylinder 301, endoporus 302, main fin 303, secondary fin 304, pallet 4, edge-on limit 401, connecting hole 402, torque spring 403.

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the utility model is done a detailed description.

Like this LED Down lamp of Fig. 1 to the utility model shown in Figure 4, it comprises housing, led light source module and pallet 4.

Said led light source module comprises several LED lamp pearls 201 and aluminium base 202; The bright dipping end of said LED lamp pearl 201 disposes lens 203; Said LED lamp pearl 201 is connected electrically on the aluminium base 202, and said aluminium base 202 is fixed on the housing and through being arranged on through hole 101 extracting power supply cords 204 on the housing.The utility model has no particular limits the number of LED lamp pearl 201, can specifically select according to actual needs, does not give unnecessary details at this.

Said housing has tailstock 102, face shield 103 and end cap 104.Said tailstock 102 has a big plane, and said aluminium base 202 is placed on the said big plane.Big plane has increased the contact area of aluminium base 202 with tailstock 102, has improved heat transfer efficiency then.Have several screens holes corresponding with lens 203 positions on the said face shield 103, said lens 203 are blocked in said screens hole.One side pressure residence of said end cap 104 state face shield 103 around, opposite side can be fixed up a plurality of lens 203 through this fixed form through being threaded on the said tailstock 102 comparatively easily.The cross section of said end cap 104 is L shaped, and the long limit of this L shaped structure is provided with screw thread, and minor face is pressed on the said face shield 103.

Heat-dissipating cylinder 301 is extended in the rear end of said housing, and said heat-dissipating cylinder 301 is provided with the endoporus 302 coaxial with said through hole 101, and the size of said endoporus 302 can make a choice according to concrete heat radiation requirement and cost requirement.In addition, the axis of heat-dissipating cylinder 301 is vertical with the big plane of said tailstock 102 in the utility model.Said heat-dissipating cylinder 301 to around give off a plurality of main fin 303, the end of said main fin 303 extends three secondary fin 304.

The utility model is through extending a plurality of secondary fin 304 from main fin 303, thereby in limited space, increased area of dissipation.Simultaneously in order enough spaces to be arranged to guarantee circulation of air, preferably three of the numbers of said secondary fin 304.

Pallet 4 has flange and edge-on limit 401, and said flange extends laterally.Said edge-on limit 401 is provided with several connecting holes 402, is connected with torque spring 403 on the said connecting hole 402.In addition, said edge-on limit 402 can be connected on the said housing through live other fixed form of screw.

The above is merely the specific embodiment of the utility model.But the utility model protection domain is not limited thereto.Any technical staff who is familiar with the present technique field is in the technical scope that the utility model discloses; The variation that can expect easily or replacement; All should be encompassed within the protection domain of the utility model, therefore, the protection domain of the utility model should be as the criterion with the protection domain of claim.

Claims

1. LED Down lamp; Comprise led light source module and housing; It is characterized in that said led light source module comprises that several dispose lensed LED lamp pearl and aluminium base, said LED lamp pearl is connected electrically on the said aluminium base; Said aluminium base is fixed on the said housing and through being arranged on the through hole extracting power supply cord on the housing; Heat-dissipating cylinder is extended in the rear end of said housing, said heat-dissipating cylinder to around give off plural main fin, the end of each said main fin extends plural secondary fin.

2. LED Down lamp according to claim 1 is characterized in that, said LED Down lamp also comprises the pallet that is connected on the said housing, and said pallet has edge-on limit, and said edge-on limit is provided with several connecting holes, and said connecting hole is provided with torque spring.

3. LED Down lamp according to claim 1 is characterized in that, said heat-dissipating cylinder has the endoporus coaxial with said through hole.