WO2017099562A1 - Dissipateur de chaleur pour dispositifs d'éclairage led haute puissance montés sur des véhicules de sport motorisés - Google Patents

Dissipateur de chaleur pour dispositifs d'éclairage led haute puissance montés sur des véhicules de sport motorisés Download PDF

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Publication number
WO2017099562A1
WO2017099562A1 PCT/MX2015/000158 MX2015000158W WO2017099562A1 WO 2017099562 A1 WO2017099562 A1 WO 2017099562A1 MX 2015000158 W MX2015000158 W MX 2015000158W WO 2017099562 A1 WO2017099562 A1 WO 2017099562A1
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WO
WIPO (PCT)
Prior art keywords
motors
heatsink
led
distinguished
acrylic
Prior art date
Application number
PCT/MX2015/000158
Other languages
English (en)
Spanish (es)
Inventor
José TRUJILLO DIAZ
Original Assignee
Trujillo Diaz José
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 Trujillo Diaz José filed Critical Trujillo Diaz José
Priority to PCT/MX2015/000158 priority Critical patent/WO2017099562A1/fr
Publication of WO2017099562A1 publication Critical patent/WO2017099562A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
    • F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades

Definitions

  • the invention falls within the technical field of electronics and mechanics, more particularly that which uses LED spot lights.
  • Within the field of electronics and mechanics are the design of heat dissipation devices for LED spot lights as an auxiliary model in the exchange of energy and heat.
  • White light LEDs are blue diodes that emit light at a wavelength of about 460 nm, coated with a layer of phosphorus derivatives. Phosphorus absorbs blue light and sends it to different wavelengths in the visible spectrum, generating white light. They are based on semiconductors of indium and gallium nitride.
  • the diode cathode is directly connected to a small parabolic reflector that in turn serves as an output terminal.
  • the positive pole of the diode is welded to the output terminal, anode, through a thin metallic conductor, usually gold.
  • the diode is coated with a phosphorus derivative film that gives it a yellowish hue.
  • the set is It is encapsulated in an epoxy resin of optical quality (high transparency) that serves as support, protection and focusing optics.
  • LED lighting is its low consumption, about 10 times less than that of a halogen bulb.
  • life of the LEDs is also greater than the focus; during the same period with the light on, the said halogen spotlight would have to be replaced about 16 times.
  • high-pressure sodium vapor commonly used in public lighting in much of Europe, provides an efficiency of 85 lumens per watt, LED technology is on its way to exceeding 150 lumens per watt, increasing this number as that progress is made in the development of semiconductors.
  • LED lamps do not require a starting time to reach their optimum levels of brightness. At the same time that energy consumption and general operating costs are reduced. Lighting through LEDs on the streets has the potential, according to researchers, to reduce light pollution.
  • the powerful LEDs that are currently in the market are in full condition for use in street luminaires as they comply with the standard regulations for levels and uniformity of luminance, compared to other technologies. That is, what is required is the uniformity of street lighting, capable of eliminating problems of glare, excessive concentration of the light beam and visibility, improving safety.
  • the LED lamps and traffic lights do not need to be replaced as often, reducing bills in the lighting, traffic jams, even facilitating their replacement.
  • LED-based lighting offers the benefit of a more natural representation of colors that can help improve safety.
  • the diodes allow you to adjust the color temperature to a street lighting application specific, that this alternative is not available with conventional lighting technologies.
  • Lamp heads whose operation is based on LEDs are known in the state of the art. This is the case, for example, of the heads marketed by Joliet Technology, S. L, which consist of headlights for street lighting, using LEDs, which adapt to the majority of street lamps existing in the market. These lampposts are made of plastic, placing modules with LEDs that radiate independently. In this way, Joliet uses plastic deflection heads on one side, and LED lighting on the other. That is, they are independent elements, which can act without each other, on the one hand LED lamps in any other system, and on the other hand, the lamppost head with other lamps.
  • This system is not waterproof, because the LEDs are screwed in modules and have grilles for heat dissipation, so that in case of rain or adverse conditions outside, it would cause problems in its operation.
  • the increase in temperature during operation is the major problem of using this type of LED lamps in particular the region where the source is located.
  • This plastic head does not dissipate the heat produced, but maintains a high temperature that causes deformation of the head, so it has not been possible to apply it in practice
  • LED light emitting diodes
  • LED devices Due to the advantages indicated, there are numerous developments to solve different lighting applications using LED devices.
  • One of the possible applications is its use in street lighting luminaires: urban public areas, public roads, parks, parking lots, etc.
  • Conventional lighting lamps offer very high luminous flux values.
  • LED technology requires, in addition to the LED radiating device itself, the use of a power converter that adapts the supply voltage, usually alternating, to that required by the LED semiconductor devices, which, as is known, is direct current.
  • a power converter that adapts the supply voltage, usually alternating, to that required by the LED semiconductor devices, which, as is known, is direct current.
  • Conventional luminaires do not have such a power converter, which must be installed inside the luminaire or inside the lamp itself, the latter option which is the most advantageous in terms of simplicity of installation, but which forces the power converter to operate in high temperature conditions, which makes it difficult for you to do so reliably.
  • the international patent application WO2011 / 135151 can be cited, which describes a replacement lamp that has as its main drawback the lack of adequate heatsinks to evacuate heat to the outside.
  • the heatsinks it presents are very inefficient because they are confined inside bi-conical enclosures with minimal opening to the outside.
  • Another drawback that presents is that the light emitted by LED devices is not radiated directly to the outside of the lamp, but it is reflected in metallic conical reflectors that can suffer oxidation and, therefore, of seeing its optical properties diminished.
  • the lamp described lacks an integrated power adapter, which makes it necessary to provide an external power adapter.
  • US patent application US2010 / 0134046 may be cited. It describes a solution to adapt a conventional street lighting luminaire to LED lighting technology, but it cannot be considered a replacement lamp because it requires a very high level of manipulation in the luminaire: it does not connect to the existing lampholder and requires additional mechanical anchors.
  • US patent application US2011 / 0134239 describes a replacement lamp that radiates in only one direction, so it is not usable in luminaires that require omnidirectional lamps.
  • the dissipative element is not modular, but formed by a single block arranged on a panel of LED devices, which makes the useful surface of the dissipator smaller.
  • the effectiveness of the heatsink is greatly compromised by the location it occupies: between the LED panel and the feeder, both elements that hinder the movement of air through the heatsink.
  • the invention WO 2013153246 A1 Intended to replace conventional lamps of public lighting luminaires, comprising a succession of dissipating modules fixed on a base, which are configured to fix at least one carrier card of a plurality of LEDs on its periphery. It is characterized in that the dissipating modules are configured to assemble the adjacent modules and simultaneously to fix the LED card; the different cooling modules being separated from each other to allow air circulation between them.
  • LED cards have a configuration elongated
  • the dissipating modules have a configuration formed by sectors separated from each other, to provide a very wide contact surface that favors heat evacuation.
  • the document closest to the invention is CN 202203704 U (QINZHENG HUANG), which describes a LED lamp for lighting that comprises a base equipped with a fixing socket for a lamp holder of a luminaire and electrical connection, which also includes an AC to DC converter required by the LEDs.
  • the LED lamp described in this document also includes a plurality of heat sink modules fixed on the base to facilitate the cooling of the lamp. However, these modules are not configured to fix on its periphery carrier cards of a plurality of LEDs, which simplifies their incorporation.
  • Patent application WO 2010119146 A1 provides an integrated lighting system comprising at least a first set consisting of a base clamping element, dissipating discs, a base structure, a printed circuit and a diffuser element, and a second set consisting of a metal head or similar, with a closed compartment at one of its ends, where it houses at least one power supply mounted on a metal base and at least one controller, so that the lamp head itself acts as a heat sink radiator both in the area of the power supply and in the area of the lamp, thanks to its large mass, the complete system being watertight, and allowing the complete replacement of the current headlamps of existing lamps, adapting to the support posts of the same.
  • the International Patent Application PCT 2009000123 describes a lighting device based on LEDs, achieving a completely waterproof lamp that saves a lot of energy and adapts to existing lamps. It comprises a connection means that attaches to the lampholder, where the power enters. A housing next to the connection means protects electronic elements, such as a controller and a power supply. The device has a printed circuit, designed to hold and connect the LEDs. A diffuser element is placed as the end cover of the device. Between the protective housing and the printed circuit, a heat dissipating element is placed, which comprises dissipating discs with a base for coupling to the housing, which ensures that the heat circulates at a higher speed obtaining greater cooling. In addition, a plate is arranged between the dissipating element or the power supply, and another plate between the controller and the power supply, creating a heat insulation chamber, so that the only heat existing inside the housing is the one provided by the power supply and the controller.
  • the working temperature is an important factor to take into account when using LEDs. Therefore, in the above mentioned invention, a series of elements that dissipate the temperature have been designed, to obtain the maximum performance, efficiency and durability allowed by the LEDs.
  • the dissipating discs and the diffuser element ensure that the device does not overheat, at least in this area. However, if there is an increase in temperature in the part of the protective housing, even including the protective plates, try to avoid overheating.
  • Patent application WO 2011067426 A1 provides a lighting device, comprising at least one printed circuit board with a plurality of LED diodes, protected by a diffuser element, and where heat dissipating means are included at the rear, in number depending on the necessary light output, where between the diffuser element and the heat dissipating means there is a mechanical airship in the form of polyhedron, in metallic material, with a central hole for the passage of the connection cables and symmetrical with respect to to the axis of symmetry €, where the printed circuit boards with the LEDs are placed on the faces of the polyhedron that forms the mechanical airship element, so that the emission of the LEDs extends its reach, dispersion and control.
  • Fig. Heatsink, full spot assembly, with motors for orientation adjustment.
  • Fig. Heatsink, bottom view, showing thickness, dissipation fin, cable gland.
  • the present invention frames the design of a device for heat dissipation in LED spot lights
  • the device is a machined aluminum base with threaded holes at different points for coupling a PCB in a sealing cylinder. It consists of a gland for cable exit and a mount on the rest of the system that is mounted on an aluminum arm coupled to the motor of the LED spot type luminaire which, consists of different degrees of freedom.
  • the invention has the utility of reducing or dissipating the heat generated by high power LEDs preventing the disabling of system PCBs.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

L'invention s'inscrit dans les domaines techniques de l'électronique et de la mécanique, et plus particulièrement dans celui de l'utilisation de luminaires à LED de type projecteurs. Dans les domaines de l'électronique et de la mécaniques, on trouve des modèles de dispositifs dissipateurs de chaleur pour luminaires à LED de type projecteurs, en tant que dispositif auxiliaire pour l'échange d'énergie et de chaleur, La présente invention concerne un dispositif en aluminium usiné destiné à dissiper la chaleur dans des luminaires à LED de type projecteurs prévus pour être montés sur des véhicules de sport motorisés ou des VTT (véhicules tout terrain), doté de trous filetés en différents point pour permettre le montage d'une carte de circuit imprimé dans un cylindre fermé. Ce dispositif est caractérisé par une traversée électrique, une monture, deux moteurs et un bras en aluminium relié au moteur du luminaire à DEL, permettant l'obtention de différents degrés de liberté.
PCT/MX2015/000158 2015-12-11 2015-12-11 Dissipateur de chaleur pour dispositifs d'éclairage led haute puissance montés sur des véhicules de sport motorisés WO2017099562A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/MX2015/000158 WO2017099562A1 (fr) 2015-12-11 2015-12-11 Dissipateur de chaleur pour dispositifs d'éclairage led haute puissance montés sur des véhicules de sport motorisés

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/MX2015/000158 WO2017099562A1 (fr) 2015-12-11 2015-12-11 Dissipateur de chaleur pour dispositifs d'éclairage led haute puissance montés sur des véhicules de sport motorisés

Publications (1)

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WO2017099562A1 true WO2017099562A1 (fr) 2017-06-15

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PCT/MX2015/000158 WO2017099562A1 (fr) 2015-12-11 2015-12-11 Dissipateur de chaleur pour dispositifs d'éclairage led haute puissance montés sur des véhicules de sport motorisés

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110037387A1 (en) * 2007-09-25 2011-02-17 Enertron, Inc. Dimmable LED Bulb With Convection Cooling
US20110051428A1 (en) * 2009-09-03 2011-03-03 Hong Kong Applied Science And Technology Research Institute Co. Ltd. Led light engine with multi-path heat dissipation
US20140292176A1 (en) * 2013-03-28 2014-10-02 Cree, Inc. Led lamp with led board heat sink
US20150176830A1 (en) * 2013-12-23 2015-06-25 Skynet Electronic Co., Ltd. Light emitting diode bulb with central axis bidirectional convection heat dissipation structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110037387A1 (en) * 2007-09-25 2011-02-17 Enertron, Inc. Dimmable LED Bulb With Convection Cooling
US20110051428A1 (en) * 2009-09-03 2011-03-03 Hong Kong Applied Science And Technology Research Institute Co. Ltd. Led light engine with multi-path heat dissipation
US20140292176A1 (en) * 2013-03-28 2014-10-02 Cree, Inc. Led lamp with led board heat sink
US20150176830A1 (en) * 2013-12-23 2015-06-25 Skynet Electronic Co., Ltd. Light emitting diode bulb with central axis bidirectional convection heat dissipation structure

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