CN204062845U

CN204062845U - LED down

Info

Publication number: CN204062845U
Application number: CN201420502846.0U
Authority: CN
Inventors: 上官同喜
Original assignee: SHENZHEN LIANGJIAMEI LIGHTING CO LTD
Current assignee: SHENZHEN LIANGJIAMEI LIGHTING CO LTD
Priority date: 2014-09-02
Filing date: 2014-09-02
Publication date: 2014-12-31
Anticipated expiration: 2024-09-02

Abstract

The utility model relates to a kind of LED down of no-reflection cup, comprise a cylindrical shell and a guard ring, guard ring is set in the periphery of cylindrical shell, it is the torus of a hollow, the symmetry of guard ring in its diametric(al) 2 places are connected with cylinder body bottom, cylindrical shell is the cylindrical structure of a conical hollow, its outer wall evenly inlays many fin, its inwall arranges a chip base, bottom is the body end surface of a circle, it is parabola shaped that its inwall is set to seamlessly transit, and the annular diameter of chip base place inwall is 30% of the annular diameter of body end surface place inwall, inner wall surface is coated with emission coating, chip base is installed the LED light source that a power is greater than 40W, the top of fin extends in groove, bottom is connected to body end surface place, engraved structure is formed between body end surface place fin.

Description

LED down

[technical field]

The utility model relates to field of LED illumination, particularly a kind of LED down of no-reflection cup.

[background technology]

Along with the development of lighting engineering, LED down starts to be widely used in the various occasions such as hotel, market, office space, factory, coffee shop, supermarket as a kind of new illuminating product.LED down is different from traditional Down lamp, and it has energy-conservation, the excellent specific property such as low-carbon (LC), longevity, colour rendering are good, fast response time, and belong to by universally acknowledged environmental protection light source, it has tempting application and prospect of industrial development.

But LED down really will realize extensive use, have many technical problems to need to solve, heat radiation is exactly one of them difficulties.The light energy use efficiency of current LED is also relatively poor, and only the input electric energy conversion of 20% ~ 30% is luminous energy, and all the other energy of 70% ~ 80% are mainly converted into heat energy with the form of the lattice vibration of non-radiative recombination generation, and LED temperature is raised.The rising of temperature can produce that luminous intensity reduces, the skew of luminous dominant wavelength thus the life-span of the serious LED of reduction, accelerate the light decay of LED.

Except above-mentioned reason, relatively high LED down manufacturing cost is also hinder a main cause of LED down extensive use.Compared to the price of a few unit of traditional Down lamp, generally domestic LED down price all more than dozens of yuan, import then higher.Fancy price allows a lot of consumer hang back undoubtedly, thus seriously hinders the extensive use of LED down.

[utility model content]

For overcoming the problem of existing LED down poor heat radiation, the utility model provides a kind of radiating effect better no-reflection cup LED down.

Technical solution problem of the present invention is to provide a kind of LED down, comprise a cylindrical shell and a guard ring, guard ring is set in the periphery of cylindrical shell, it is the torus of a hollow, the symmetry of guard ring in its diametric(al) 2 places are connected with cylinder body bottom, cylindrical shell is the cylindrical structure of a conical hollow, its outer wall evenly inlays many fin, its inwall arranges a chip base, bottom is the body end surface of a circle, it is parabola shaped that its inwall is set to seamlessly transit, and the annular diameter of chip base place inwall is 30% of the annular diameter of body end surface place inwall, inner wall surface is coated with emission coating, chip base is installed the LED light source that a power is greater than 40W, the top of fin extends in groove, bottom is connected to body end surface place, engraved structure is formed between body end surface place fin.

Preferably, described fin is fin-shaped, and the average distance between every two fin is about 10%-30% of body end surface diameter.

Preferably, comprise a retainer ring and a diffuser further, body end surface is a circular open structure, diffuser is arranged in this circular open structure, diffuser is folded between retainer ring and body end surface, body end surface place arranges four fixing holes, and fixing hole is disposed between the engraved structure of fin with 90 °.

Compared with prior art, LED down of the present utility model is by carrying out special shape process to cylinder inboard wall, make it identical with reflection shield to the full extent, and at its surface coating reflectance coating, to make the luminous intensity distribution process that can realize LED light source by cylinder inboard wall, without the need to additionally adding a reflection shield, reducing the structural detail of product, saving cost and also shortening assembling process.In addition, multiple fin is evenly laid at the outer wall of cylindrical shell, and the louvre structure of hollow out is set at fin and body end surface junction, the heat that internal LED light source is sent is when outwards distributing by fin, convection current can be formed, accelerated heat distributing around cylindrical shell at cylinder body bottom and top.The setting of fin is covered with whole cylindrical shell periphery, and top is until inside grooves, and bottom, until body end surface, realizes the maximization of fin area of dissipation, improves radiating efficiency further.On the installation of whole LED down is fixing, fixing diffuser by retainer ring makes it fixing more firm, cylindrical shell is fixed by guard ring, and pass through the installing hole of two diametric(al)s settings, while installation fixed cylinder, the angle of cylindrical shell can also be adjusted, and then the lighting angle of adjustment LED light source.

[accompanying drawing explanation]

Fig. 1 is the exploded perspective structural representation of the utility model LED down.

Fig. 2 is the cylindrical shell cross-sectional view of the utility model LED down.

[detailed description of the invention]

In order to make object of the present invention, technical scheme and advantage are clearly understood, below in conjunction with accompanying drawing and embodiment, are further elaborated to the present invention.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.

Refer to Fig. 1, the LED down 10 that the utility model provides, comprise guard ring 101, retainer ring 103, diffuser 105 and cylindrical shell 109.Wherein, guard ring 101 is set in the periphery of cylindrical shell 109, and be the torus of a hollow, diffuser 105 is fixed on the end face of cylindrical shell 109 by retainer ring 103.Cylindrical shell 109 is the cavity body structure of a hollow, its inner placement illuminating source.Its body end surface 1091 is the opening of a circle, and diffuser 105 is placed on this opening part, and is fixed on end face by diffuser 105 by retainer ring 103.

The inner diameter direction of guard ring 101 is arranged two symmetrical slotted eyes 1011, the outer wall of body end surface 1091 arranges two installing holes 1085, the position of this installing hole 1085 is corresponding with the position of slotted eye 1011, when cylindrical shell 109 is arranged on guard ring 101, cylindrical shell 109 and guard ring 101 can be connected and fixed by connector.Simultaneously, owing to being just fixed in diametric two positions, therefore loose time, can with two connectors for fulcrum carries out rotary barrel 109, the placed angle of adjustment cylindrical shell 109, and then adjust the irradiating angle of the illuminating source on cylindrical shell 109.

Please refer to Fig. 2, cylindrical shell 109 is the cylindrical structure of a similar conical hollow, its outer wall evenly inlays many fin 1095, it is parabola shaped that cylinder inboard wall 1097 is set to seamlessly transit, and this shape designs according to the shape of reflector, reflector can be replaced to make cylinder inboard wall 1097 and carry out luminous intensity distribution process.Top is a groove 1093, and groove 1093 circle diameter size is about 30% of bottom body end surface 1091 diameter, and this cylindrical shell 109 inside corresponding to groove 1093 is horizontal structure, is used for placement LED light source 1089.Bottom body end surface 1091 is a rounded face, the louvre 1081 of multiple hollow out is set in its surface, and four fixing holes 1083 of arranging with 90 ° of intervals are set between louvre 1081, this fixing hole 1083 is used for being fixed in body end surface 1091 by retainer ring 103 by fixture.

Around cylindrical shell 109, be uniform-distribution with 24 fin 1095, fin 1095 is in fin-shaped, and the average distance between every two fin 1095 is about 10%-30% of body end surface 1091 diameter.Fin 1095 is connected with groove 1093, under be connected with body end surface 1091, centre then depends on cylindrical shell 109.The louvre 1081 at body end surface 1091 place is the gap of fin 1095 between each two fin 1095 at body end surface 1091 place.

Cylindrical shell 109 inside corresponding with groove 1093 is chip base 1087, chip base 1087 arranges a high-power LED light source 1089, due to the unique design of fin 1095, can meet the radiating requirements being greater than 40W at the luminous power of LED light source 1089.

The shape of cylinder inboard wall 1097 is cup-shaped, the diameter of bottom body end surface 1091 is about 30% of top groove place 1093 place's diameter, cylinder inboard wall 1097 is highly about 80% of top diameter, design like this can make the approximate conventional reflecting cup structure of cylinder inboard wall 1097 largely, plays the light distribution effect approximate with reflector.Certainly, be also coated with luminescent coating at cylinder inboard wall 1097, be generally silver or aluminized coating, to realize reflective and spotlight effect.

When mounted, first LED light source 1089 is encapsulated on the chip base 1087 of cylindrical shell 109 inside, and installs fixing.Then diffuser 105 is placed on the circular open place of body end surface 1091, and with retainer ring 103, diffuser 105 is clipped between itself and body end surface 1091, with fixture through retainer ring 103 and the fixing hole 1083 in body end surface 1091, diffuser 105 is fixed on the light emission direction of LED light source 1089.

Be placed on the inside of the installing hole 1085 in body end surface 1091 afterwards with a packing ring, and then the slotted eye 1011 of guard ring 101 and installing hole 1085 temporarily fixed with pin.Finally, after the cylindrical shell 109 that moves around adjusts lighting angle, re-use setting tool by pin fastener, cylindrical shell 109 is fixed on guard ring 101.

In use, powered on to LED light source 1089 by the lead-in wire of groove 1093.The light that LED light source 1089 sends can be irradiated on cylinder inboard wall 1097, and passes through its reflection, light being propagated along the direction of reflection, carries out optically focused process to LED light source 1089 light dispersed, carrying out luminescence towards needing the region irradiated.

Compared with prior art, LED down 10 of the present utility model is by carrying out special shape process to cylinder inboard wall 1097, make it identical with reflection shield to the full extent, and at its surface coating reflectance coating, to make the luminous intensity distribution process that can realize LED light source 1089 by cylinder inboard wall 1097, without the need to additionally adding a reflection shield, reducing the structural detail of product, saving cost and also shortening assembling process.In addition, multiple fin 1095 is evenly laid at the outer wall of cylindrical shell 109, and louvre 1081 structure of hollow out is set in fin 1095 and body end surface 1091 junction, the heat that internal LED light source 1089 is sent is when outwards distributing by fin 1095, convection current can be formed, accelerated heat distributing around cylindrical shell 109 with top bottom cylindrical shell 109.The setting of fin 1095 is covered with whole cylindrical shell 109 periphery, and top is until groove 1093 is inner, and bottom, until body end surface 1091, realizes the maximization of fin 1095 area of dissipation, improves radiating efficiency further.On the installation of whole LED down 10 is fixing, fixing diffuser 105 by retainer ring 103 makes it fixing more firm, cylindrical shell 109 is fixed by guard ring 101, and pass through the installing hole 1085 of two diametric(al)s settings, while installation fixed cylinder 109, the angle of cylindrical shell 109 can also be adjusted, and then the lighting angle of adjustment LED light source 1089.

The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all any amendments done within principle of the present utility model, equivalent replacement and improvement etc. all should comprise within protection domain of the present utility model.

Claims

1. a LED down, comprise a cylindrical shell and a guard ring, guard ring is set in the periphery of cylindrical shell, it is the torus of a hollow, the symmetry of guard ring in its diametric(al) 2 places are connected with cylinder body bottom, it is characterized in that: cylindrical shell is the cylindrical structure of a conical hollow, its outer wall evenly inlays many fin, its inwall arranges a chip base, bottom is the body end surface of a circle, it is parabola shaped that its inwall is set to seamlessly transit, and the annular diameter of chip base place inwall is 30% of the annular diameter of body end surface place inwall, inner wall surface is coated with emission coating, chip base is installed the LED light source that a power is greater than 40W, the top of fin extends in groove, bottom is connected to body end surface place, engraved structure is formed between body end surface place fin.

2. LED down as claimed in claim 1, it is characterized in that: described fin is fin-shaped, the average distance between every two fin is about 10%-30% of body end surface diameter.

3. LED down as claimed in claim 1, it is characterized in that: comprise a retainer ring and a diffuser further, body end surface is a circular open structure, diffuser is arranged in this circular open structure, diffuser is folded between retainer ring and body end surface, body end surface place arranges four fixing holes, and fixing hole is disposed between the engraved structure of fin with 90 °.