WO2019212381A1 - Lampe à diodes électroluminescentes à guide d'ondes cylindrique - Google Patents

Lampe à diodes électroluminescentes à guide d'ondes cylindrique Download PDF

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Publication number
WO2019212381A1
WO2019212381A1 PCT/RU2019/000140 RU2019000140W WO2019212381A1 WO 2019212381 A1 WO2019212381 A1 WO 2019212381A1 RU 2019000140 W RU2019000140 W RU 2019000140W WO 2019212381 A1 WO2019212381 A1 WO 2019212381A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat sink
cylindrical
fiber
paragraph
led lamp
Prior art date
Application number
PCT/RU2019/000140
Other languages
English (en)
Russian (ru)
Inventor
Юрий Борисович СОКОЛОВ
Original Assignee
Sokolov Yuriy Borisovich
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sokolov Yuriy Borisovich filed Critical Sokolov Yuriy Borisovich
Publication of WO2019212381A1 publication Critical patent/WO2019212381A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction

Definitions

  • the technical solution relates to lighting engineering, namely, lighting devices based on a fiber with end-illuminated LEDs, which can be used for indoor and outdoor lighting.
  • the EdgeLighting effect is known when the LEDs emit at the end of a transparent sheet fiber made of glass, polycarbonate, acrylate or other optically transparent materials.
  • the light is distributed along the fiber, repeatedly reflected from its walls and going outside if the angle of incidence of light on the surface is more than critical. If points of optical inhomogeneity are applied to the surface of the fiber, then falling on them, the light is scattered, and part of the radiation goes outside through the surface of the fiber.
  • LED lamps containing a housing-radiator; means for connecting to the electric network, in the form of an Edison cap fixed to the lamp housing; a light guide structure (light guide), the light emitting surface of which is formed by rotation of a second-order curve provided with an end surface; an annular board with LEDs, installed with the possibility of LEDs illuminating the end surface of the fiber, while the light emission of the LEDs is directed longitudinally to the axis of the lamp, and through ventilation ducts (EP 2796784, IPC F21V29 / 00, published on 10.29.2014).
  • Another well-known analogue is a lighting device containing a housing with means for connecting to an electric network, a light guide having an end surface and a surface equipped with optical heterogeneity elements, a printed circuit board mounted on a radiator and made in the form of a ring on which LEDs are mounted with the possibility of irradiating the end surface of the light guide ( EP 3190336, IPC F21V 8/00, 07/12/2017).
  • the closest is an analogue containing the largest number of matching features and disclosed in US2011 / 0309735, IPC H01J7 / 24, published on December 22, 2011, having a radiator case with through ventilation holes; means for connecting to the electric network in the form of an Edison cap fixed to the lamp housing; a hollow cylindrical waveguide having two end surfaces and provided with optical heterogeneity elements on the side surface; a board in the form of a ring with LEDs installed with the possibility of lighting one or both of the end surfaces of the fiber; a fiber optic cover that has through ventilation holes.
  • Known LED lamp comprising a housing, a light diffuser in the form of a hemisphere, a hollow cylindrical heat sink mounted in the housing and provided with an annular protrusion on the side surface, an annular LED board mounted on a protrusion of a cylindrical heat sink with the possibility of radiation into the hemisphere of the light diffuser (EP2792944, IPC F21V 29/00, published September 13, 2017).
  • the disadvantage of this analogue is the limited distribution due to the location of the light sources and the shape of the diffuser.
  • the technical result is the improvement of heat dissipation, allowing the use of powerful LEDs, increase light power and expand the arsenal of LED lamps with a large light-emitting surface.
  • LED lamp with a cylindrical waveguide containing:
  • a hollow body of heat-conducting material having; a remote part for securing means for connecting to the power grid;
  • a hollow cylindrical fiber having a lateral light-emitting surface, provided with optical heterogeneity elements and end surfaces at the ends of the fiber, one of which is placed in the cavity of the housing;
  • a printed circuit board in the form of a ring with LEDs mounted to illuminate the end surface of the fiber
  • a hollow cylindrical heat sink the surface of which is divided into two parts by an annular protrusion, on which an annular board is mounted with the possibility of illuminating the end surface of the fiber, the first part the heat sink is fixed in the housing, and the second part of the heat sink is placed in the cavity of the light guide so that between the heat sink and the light guide is formed
  • an electrically isolated compartment is made, the wall of which forms a cavity with the wall of a cylindrical
  • the hollow cylindrical heat sink is made of aluminum or another material having good thermal conductivity, which allows you to effectively remove heat from the LEDs.
  • holes can be made in the wall of the cylindrical heat sink, for example, in the form of longitudinal cutouts, which, together with other elements forming the ventilation channel, ensure the creation of a stable convection flow.
  • cutouts makes it easy to lay conductors to connect the power source to the LED board.
  • Circular protrusions on a cylindrical heat sink can be formed by plastic deformation of the heat sink wall.
  • Another option for creating a circular protrusion may be the implementation of a cylindrical heat sink from tubes of different diameters inserted one into another. In this case, the width of the protrusion will be equal to the wall thickness of the tube of larger diameter.
  • annular limiter is installed between the end surface of the fiber and the LED board, the function of which is to provide the smallest possible distance between the end of the fiber and the LED housing, press the LED board against the protrusion surface on the cylindrical heat sink to improve heat transfer between them and center the fiber relative to the housing and the cylindrical heat sink.
  • the annular limiter has an external protrusion located between the surface of the LED board and the end surface of the fiber, which prevents mechanical contact of the fiber with the LEDs and ensures the board is pressed against the surface of the protrusion on the heat sink.
  • the clamping force of the board to the protrusion on the heat sink is created by fixing the fixing cover, due to the presence of an elastic ring gasket between the fixing cover, on the one hand, and the ends of the fiber and the heat sink, on the other hand.
  • Elements of optical inhomogeneity can be located both on the surface of a cylindrical fiber and in the body of the fiber. Moreover, the latter option has the advantage that it is not prone to contamination during operation of the lamp.
  • the fiber has an extended surface, and the lamp is equipped with two housings, each of which has a cylindrical heat sink fixed in the cavity of the fiber, as described above for the case with one housing.
  • the ventilation channel includes holes in the housings, the cavity of the heat sinks and the cavity of the light guide.
  • an annular board with LEDs installed with the possibility of lighting the corresponding ends of the surface of the fiber is installed on the annular protrusions of each heat sink.
  • a screw cap or caps of a different design can be used, which allows connecting to the mains.
  • the screw base is inconvenient to use.
  • FIG. 1 figure 2-axial section of a variant of the LED lamp, with a protrusion on a cylindrical heat sink formed by the method of plastic deformation of the wall of the heat sink,
  • Fig. 3 is an enlarged image of a fragment C of the axial section indicated in Fig. 2,
  • figure 4 is a three-dimensional image of a variant of the LED lamp shown in figure 2, in a parsing,
  • FIG. 6 is a cross section of a double-ended LED lamp shown in Fig. 5
  • the LED base lamp contains a hollow plastic housing 2, a means for connecting to the electric network, for example, a socle 9, a light guide 3 made in the form of a hollow cylinder, the first and second ends of which have an end surface, fixed on it.
  • the fiber is equipped with elements of optical heterogeneity (not shown in the drawing), which ensure the scattering of radiation and its exit beyond the fiber.
  • the elements of optical heterogeneity can be formed on the cylindrical surface of the fiber from the outside or inside.
  • the inner surface of the fiber can be equipped with a reflector 19 made in the form of a cylindrical insert or film, the surface of which has reflective properties.
  • cylindrical heat sink 1 is made of
  • the surface of the heat sink 1 is divided into two parts by an annular protrusion 5, while the first part 1.1 of the heat sink 1 is fixed in the cavity of the housing 2, and the second part 1.2 is placed in the cavity of the light guide 3 so that between the heat sink 1 and the light guide 3
  • a cylindrical heat sink 1 is fixed, similar to that shown in Fig. 4, and the light guide 3 is installed between the protrusions 5 of the heat sinks.
  • the LEDs are mounted on the board 4, made in the form of a ring placed on the circular protrusion 5 of the cylindrical heat sink 1. In this case, the LEDs are mounted with the possibility of irradiation of the end surface 18 of the light guide 3.
  • An annular limiter 16 is installed between the end surface of the light guide 3 and the LED board 4, which prevents mechanical contact of the end of the light guide 3 with the LEDs and ensures that the board 4 is clamped to the surface of the protrusion 5 on the heat sink 1.
  • the pressure of the board 4 against the protrusion 5 is created when fixing the fixing cover b, due to the presence of an elastic ring gasket 21 between the fixing cover 5, on the one hand, and the ends of the light guide 3 and heat sink 1, on the other hand.
  • the cooling efficiency is achieved, in particular, by creating a convection flow generated during operation of the lamp in the ventilation channel, including the ventilation cavity 14 in the cylindrical heat sink 1, the ventilation cavity 13 between the wall of the heat sink 1 and the light guide 3, communicating with the cavity 13 through the slots 10, a ventilation cavity 15 between the wall 20 of the compartment 12 for accommodating the power source and the heat sink 1, through holes 8 in the housing 2 and through holes 11 in the fixing cover b.
  • a white elastic ring gasket 21 is installed, which is also a reflector of the light flux.
  • the fixing cover b is fixed in the holes on the heat sink 1 by means of fixing elastic protrusions.
  • part of the ventilation duct are openings 8 in the housings 2, cavities 13, 14 of the heat pipe 1 and the light guide 3.
  • the means 9 for connecting to the electric network have a predominantly cylindrical surface.
  • the use of a helical surface complicates the connection to the power supply.

Landscapes

  • 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)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

L'invention concerne les équipements d'éclairage et notamment des dispositifs d'éclairage sur la base d'un guide lumineux à rétroéclairage d'extrémité par des diodes électroluminescentes qui peuvent être utilisées pour l'éclairage d'intérieur ou de rue. Le résultat technique consiste à améliorer l'évacuation de chaleur, augmenter la puissance lumineuse et élargir la gamme de lampes à diodes électroluminescentes. Elle comprend un corps creux (2), un culot (9), un guide lumineux creux (3) comportant des irrégularités thermiques appliquées, un dissipateur thermique cylindrique (1) en aluminium qui est disposé dans la cavité du guide lumineux (3) et fixé dans la cavité du corps (2) de manière à pouvoir assurer l'échange thermique. Les diodes électroluminescentes sont montées sur une carte (4) offrant la possibilité d'irradiation de la surface d'extrémité de la diode électroluminescente. La carte se présente comme un anneau et est disposée sur la saillie annulaire (5) du dissipateur thermique cylindrique (1). Le couvercle de fixation (6) comporte des trous débouchants (11) et le corps (2) comporte des trous débouchants (8) ; conjointement avec la cavité de dissipateur thermique (1) et de guide lumineux (3) cela permet de créer un canal aérien par convection.
PCT/RU2019/000140 2018-05-03 2019-03-04 Lampe à diodes électroluminescentes à guide d'ondes cylindrique WO2019212381A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
RU2018116393 2018-05-03
RU2018116393A RU2680720C1 (ru) 2018-05-03 2018-05-03 Светодиодная лампа общего назначения

Publications (1)

Publication Number Publication Date
WO2019212381A1 true WO2019212381A1 (fr) 2019-11-07

Family

ID=65479386

Family Applications (2)

Application Number Title Priority Date Filing Date
PCT/RU2019/000140 WO2019212381A1 (fr) 2018-05-03 2019-03-04 Lampe à diodes électroluminescentes à guide d'ondes cylindrique
PCT/RU2019/000155 WO2019212382A1 (fr) 2018-05-03 2019-03-12 Lampe à diodes électroluminescentes à usage général

Family Applications After (1)

Application Number Title Priority Date Filing Date
PCT/RU2019/000155 WO2019212382A1 (fr) 2018-05-03 2019-03-12 Lampe à diodes électroluminescentes à usage général

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RU (1) RU2680720C1 (fr)
WO (2) WO2019212381A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2746242C1 (ru) * 2020-06-26 2021-04-09 Юрий Борисович Соколов Светодиодная лампа повышенной мощности с полным углом освещения

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101509653A (zh) * 2009-03-09 2009-08-19 张春涛 带有风扇的大功率led灯结构
US20110309735A1 (en) * 2010-06-18 2011-12-22 Parker Jeffery R Light bulb using solid-state light sources
CN203010454U (zh) * 2012-12-19 2013-06-19 上海马赫电子科技有限公司 一种新型大功率一体化led灯
US20160116117A1 (en) * 2013-05-08 2016-04-28 Koninklijke Philps N.V. Lighting device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2077415B1 (fr) * 2008-01-04 2011-12-14 Albert Stekelenburg Ampoule DEL avec dispositif d'évacuation de la chaleur
RU2516228C2 (ru) * 2012-04-12 2014-05-20 Общество С Ограниченной Ответственностью "Светозар" Светодиодная лампа
CN202901964U (zh) * 2012-11-01 2013-04-24 许定国 一种管状低压led灯泡
CN203718718U (zh) * 2014-03-18 2014-07-16 吴为生 一种led顶灯散热器
WO2015171014A1 (fr) * 2014-12-26 2015-11-12 Юрий Борисович СОКОЛОВ Lampe à diodes électroluminescentes à vocation générale avec corps-radiateur coulé
WO2016064295A1 (fr) * 2014-12-26 2016-04-28 Юрий Борисович СОКОЛОВ Lampe à del
RU2592890C1 (ru) * 2015-07-28 2016-07-27 Юрий Борисович Соколов Светодиодная лампа
RU2713241C2 (ru) * 2015-09-11 2020-02-04 Юрий Борисович Соколов Светодиодная лампа

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101509653A (zh) * 2009-03-09 2009-08-19 张春涛 带有风扇的大功率led灯结构
US20110309735A1 (en) * 2010-06-18 2011-12-22 Parker Jeffery R Light bulb using solid-state light sources
CN203010454U (zh) * 2012-12-19 2013-06-19 上海马赫电子科技有限公司 一种新型大功率一体化led灯
US20160116117A1 (en) * 2013-05-08 2016-04-28 Koninklijke Philps N.V. Lighting device

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Publication number Publication date
WO2019212382A1 (fr) 2019-11-07
RU2680720C1 (ru) 2019-02-26

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