EP3199861B1 - Led lamp and led light source module thereof - Google Patents

Led lamp and led light source module thereof Download PDF

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Publication number
EP3199861B1
EP3199861B1 EP15844987.6A EP15844987A EP3199861B1 EP 3199861 B1 EP3199861 B1 EP 3199861B1 EP 15844987 A EP15844987 A EP 15844987A EP 3199861 B1 EP3199861 B1 EP 3199861B1
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EP
European Patent Office
Prior art keywords
light source
lens assembly
source plate
area
integrated lens
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP15844987.6A
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German (de)
English (en)
French (fr)
Other versions
EP3199861A4 (en
EP3199861A1 (en
Inventor
Zhengwang XU
Songjing JIANG
Shitao Deng
Ruikai LIAN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Opple Lighting Co Ltd
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Opple Lighting Co Ltd
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Publication date
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Publication of EP3199861A4 publication Critical patent/EP3199861A4/en
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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
    • F21S2/005—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction of modular construction
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/105—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using magnets
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/16—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting
    • F21V17/164—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by deformation of parts; Snap action mounting the parts being subjected to bending, e.g. snap joints
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/08—Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
    • F21V21/096—Magnetic devices
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • 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
    • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
    • F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
    • F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
    • F21V23/006—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate being distinct from the light source holder
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/007—Array of lenses or refractors for a cluster of light sources, e.g. for arrangement of multiple light sources in one plane
    • 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
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
    • F21Y2105/18—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array annular; polygonal other than square or rectangular, e.g. for spotlights or for generating an axially symmetrical light beam
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to the field of light sources, in particular, to a light-emitting diode (LED) lamp and an LED light source module thereof.
  • LED light-emitting diode
  • LED light sources involve a new kind of light sources and have the advantages such as long service life, low power consumption, non-radiation, being free of harmful substances such as mercury, and so on. Lamps taking LED light sources as main light sources have been more and more in the market. The LED light sources are gradually replacing the traditional light sources, will become the most important light sources in the lighting field, and are widely applied in various fields of life and production.
  • a plurality of LED units are usually integrated onto a printed circuit board (PCB), and a separate lens unit respectively covers each LED unit.
  • PCB printed circuit board
  • the arrangement of the separate lens units also requires a protecting cover that is additionally arranged to protect circuits on parts of the light source plate, which part is not covered by the lens units, so the manufacturing process is relatively complex.
  • the assembly of LED light sources into a lamp is a necessary process in the manufacturing process, and the assembly efficiency also affects the cost of the lamp.
  • the current fixing means in the market mostly directly employs screws to fix a light source module on a base.
  • the fixing means is inconvenient in the assembly and disassembly process.
  • a structure adopting magnetic connecting elements to adsorb the entire lamp onto a fixing mechanism In the state of art, there is also disclosed a structure adopting magnetic connecting elements to adsorb the entire lamp onto a fixing mechanism. Although the convenience in the assembly process is improved to some extent, the structure still suffers from the risk of disengagement of the magnetic elements and the lamp.
  • Document CN102410462A provides an integrated LED lighting source which comprises a bottom housing, a circuit board, an optical lens and a drive power supply, wherein the circuit board is attached on the bottom housing and is provided with a plurality of LED light-emitting bodies backing on to the bottom housing, the optical lens covers above the LED light-emitting bodies and is used for carrying out secondary optical distribution on light rays of each LED light-emitting body, and the drive power supply is electrically connected to the circuit board.
  • the LED light-emitting bodies are used as the light source, thus emitted light rays are uniform and soft through secondary optical distribution and an arrangement mode calculated through simulation, electricity-saving lighting is realized, and high light efficiency and effective lighting rate of LED lighting are kept.
  • an objective of the present invention is to provide an LED lamp having the advantages of simple structure and safety and reliability and an LED light source module applied in the LED lamp.
  • the first aspect of the present invention discloses an LED light source module, which comprises: a light source plate comprising a first surface and a second surface which are opposite to each other, in which a plurality of LED light sources are attached to the first surface, and the second surface faces a base assembled on a mounting base; a power driving module electrically connected with the light source plate; and an integrated lens assembly configured to be fixed with the light source plate.
  • the integrated lens assembly covers an outside of the first surface of the light source plate, is provided with a plurality of lens units which respectively cover an outside of corresponding LED light sources, and is provided with an accommodating space which is configured to accommodate the power driving module into the accommodating space.
  • a plurality of magnetic elements, or magnetic elements and mechanical connecting elements, run through the integrated lens assembly and the light source plate and are adsorbed and/or assembled on the base.
  • the integrated lens assembly is provided with at least two accommodating portions and each accommodating portion accommodates a magnetic mounting element which is configured for absorbing the base of the lamp.
  • the integrated lens assembly comprises a lens setting area and a power supply accommodating area provided with the accommodating space; the lens setting area is disposed at the first height; the power supply accommodating area is formed with being projected upwards from the first height; and a top surface of the power supply accommodating area is disposed at the second height.
  • the light source plate comprises a light source setting area and a power supply area which respectively correspond to the integrated lens assembly; the lens setting area covers the light source setting area; and the power supply area and the power supply accommodating area accommodate the power driving module together.
  • the power supply accommodating area is disposed on one side of the lens setting area, and the power supply area is disposed on one side of the light source setting area.
  • the power supply accommodating area is disposed in the middle part of the lens setting area, and the power supply area is disposed in the middle part of the light source setting area.
  • the plurality of magnetic elements, or magnetic elements and mechanical connecting elements are concentrically spaced on a central portion and/or a body portion and/or an edge portion of the integrated lens assembly; and the light source plate is correspondingly provided with through holes of a shape matching the magnetic elements and/or the mechanical connecting elements to run through and to be fixed.
  • the integrated lens assembly and the light source plate are fixed by a detachable connection mechanism.
  • a shape of the integrated lens assembly matches a shape of the light source plate, and a plurality of elastic fasteners extended in the direction towards the light source plate are spaced at the edge of the integrated lens assembly and configured to fasten the light source plate.
  • the integrated lens assembly is provided with a plurality of pairs of elastic jaws extended towards the light source plate; the light source plate is provided with clamping holes corresponding to the elastic jaws; and the elastic jaws run through the clamping holes to clamp the light source plate.
  • an adapter plate is disposed between the power driving module and the light source plate.
  • the lens unit is a hemispherical lens, and a central portion of an incident surface of the hemispherical lens is concaved to form an accommodating cavity configured to accommodate an LED light source and axisymmetric relative to the hemispherical lens. More preferably, the central portion of a light-emitting surface of the hemispherical lens is concaved to form an inverted-cone diffusion portion. More preferably, one of the incident surface and the light-emitting surface is a polished surface and the other is a frosted surface.
  • the second aspect discloses an LED lamp, which comprises a base taken as a mounting base, and the LED lamp comprises the foregoing LED light source module.
  • an integrated lens assembly according to claim 9 is disclosed.
  • the present invention has the following advantages:
  • FIGS. 1 to 7 illustrate two preferred embodiments of the LED light source module provided by the present invention.
  • the LED light source module comprises a light source plate 10, an integrated lens assembly 20, magnetic elements 30, and a power driving module 40.
  • the light source plate 10 has a first surface and a second surface which are opposite to each other; a plurality of LED light sources 11 are attached to the first surface; the second surface faces a base (not shown) assembled on a mounting base; the power driving module 40 is electrically connected with the light source plate 10; and the integrated lens assembly 20 is fixed with the light source plate 10.
  • the integrated lens assembly 20 and the light source plate 10 are fixed by a detachable connection mechanism, and the light source plate 10 is fastened through a plurality of fasteners or hooks disposed on the integrated lens assembly 20, so that complete assembly can be achieved.
  • the present invention may still adopt other assembly methods, for instance, an undetachable connection mechanism such as gluing and welding, to realize the fixing of the integrated lens assembly 20 with the light source plate 10; in this way, no matter detachable connection mechanism or undetachable connection mechanism is adopted, the technical proposals shall all fall within the scope of protection of the present invention as long as the fixing effect of complete assembly of the integrated lens assembly 20 with the light source plate 10 is achieved and the luminous effect of the entire LED light source module is not disadvantageously affected.
  • the integrated lens assembly 20 covers the outside of the first surface of the light source plate 10 and is provided with a plurality of lens units (e.g., hemispherical lenses 24) which respectively cover the outside of LED light sources 11; the integrated lens assembly 20 is provided with an accommodating space 25; and the power driving module 40 is accommodated within the accommodating space 25.
  • the integrated lens assembly 20 is made from an insulating material, preferably one of polycarbonate (PC), Acrylic or polymethyl methacrylate (PMMA).
  • PC polycarbonate
  • PMMA polymethyl methacrylate
  • the power driving module 40 As the power driving module 40 is accommodated into the accommodating space 25, the power driving module 40 can be insulated from the outside space through the integrated lens assembly 20, and the integrated lens assembly 20 is taken as a protecting cover and configured to protect the power driving module 40.
  • the integrated lens assembly 20 receives emergent light of the light source plate 10. By adoption of the LED light sources 11 and the hemispherical lenses 24 which are arranged in one-to-one correspondence, the emergent light is refracted by the hemispherical lenses 24 and emitted to form scattered luminous spots, so that the function of lighting can be achieved.
  • the integrated lens assembly 20 is equipped with a lens setting area provided with the plurality of hemispherical lenses 24 and a power supply accommodating area provided with the accommodating space 25 and configured to accommodate the power driving module 40; the lens setting area is disposed at the first height of the integrated lens assembly 20; and the power supply accommodating area is formed with being projected upwards from the first height, and a top surface of the power supply accommodating area is disposed at the second height. Due to the lens setting area and the power supply accommodating area with different heights, the integrated lens assembly 20 is L-shaped as a whole, and the power supply accommodating area higher than the lens setting area provides convenience to form the accommodating space 25 to accommodate the power driving module 40.
  • the light source plate 10 is provided with a light source setting area provided with the plurality of LED light sources and a power supply area configured to mount the power driving module 40.
  • the lens setting area covers the light source setting area, and the power supply area and the power supply accommodating area accommodate the power driving module 40 together.
  • the power supply accommodating area is disposed on one side of the lens setting area, and correspondingly the power supply area is disposed on one side of the light source setting area.
  • the power supply accommodating area is disposed in the middle part of the lens setting area, and correspondingly the power supply area is disposed in the middle part of the light source setting area.
  • both the two positions do not affect the luminous effect of the lamp, and the insulating effect of the power driving module 40 is also pretty good.
  • a plurality of magnetic elements 30 and/or mechanical connecting elements (not shown, for example screws, in which case the integrated lens assembly 20 and the light source plate 10 are correspondingly provided with screw holes (not shown in the figure)) run through the integrated lens assembly 20 and the light source plate 10, and are adsorbed and/or assembled onto the base.
  • the plurality of magnetic elements 30 and/or mechanical connecting elements are concentrically spaced on a central portion and/or a body portion and/or an edge portion of the integrated lens assembly 20; and the light source plate 10 is correspondingly provided with through holes 12 with a shape matching with the magnetic elements 30 and/or the mechanical connecting elements to run therethrough and thus be fixed.
  • two magnetic elements 30 are respectively disposed at the central portion of the lens setting area and the central portion of the junction between the lens setting area and the power supply accommodating area; and the two magnetic elements 30 respectively fix the lens setting area and the power supply accommodating area.
  • three magnetic elements 30 are approximately distributed in a triangle, and the fixing effect can become better by utilization of the stability of the triangle.
  • the integrated lens assembly 20 includes a plurality of accommodating portions 21.
  • the accommodating portions 21 are extended towards the light source plate 10 from the integrated lens assembly 20.
  • the light source plate 10 is provided with a plurality of through holes 12.
  • the through holes 12 and the accommodating portions 21 are arranged correspondingly and have shapes matching each other, namely the accommodating portions 21 and the through holes 12 are in the same number; the accommodating portion 21 can just run through the through hole 12; and an outer wall of the accommodating portion 21 and an inner wall of the through hole 12 generate frictional contact therebetween.
  • One magnetic element 30 is fixed in each accommodating portion 21; and meanwhile, the base of the lamp can adsorb the magnetic elements 30 disposed in the accommodating portions 21, and the accommodating portion 21 is attracted to the magnetic base as well.
  • the integrated lens assembly 20 and the light source plate 10 are fixed on the magnetic base.
  • the fixing effect of the LED light sources and the lamp can be achieved simply by adoption of the structure of the accommodating portions 21 and the through holes 12 provided on two components of the LED light source module, namely the light source plate 10 and the integrated lens assembly 20, with the magnetic elements 30 being inserted into the accommodating portions 21, and by utilization of magnetic attraction between the magnetic elements 30 and the magnetic base without additional assembling tools (e.g., screws and a screw driver), so that the assembly process can become more convenient.
  • the light source plate 10 and the magnetic base of the lamp are not isolated from each other by other component(s), and the thermal conductivity of general magnetic materials is also good, so that the thermal radiating effect of the entire lamp is relatively good.
  • the accommodating portion 21 includes a fixed end fixed onto the integrated lens assembly 20 and a free end 22 which is extended outward, and both the fixed end and the free end 22 of the accommodating portion are in structures provided with openings, the accommodating portion 21 is of an annular accommodating section, so that the magnetic elements 30 and the magnetic base of the lamp can be attached together, and hence the fixing effect of the LED light sources can be enhanced. As shown in FIGS. 2 and 4 , as the accommodating portion 21 includes a fixed end fixed onto the integrated lens assembly 20 and a free end 22 which is extended outward, and both the fixed end and the free end 22 of the accommodating portion are in structures provided with openings, the accommodating portion 21 is of an annular accommodating section, so that the magnetic elements 30 and the magnetic base of the lamp can be attached together, and hence the fixing effect of the LED light sources can be enhanced. As shown in FIGS.
  • an extension end of the accommodating portion 21 may be formed with a plurality of cambered elastic clamping parts; a gap is formed between two adjacent clamping parts and is extended from the cut-off end of the fastening stand 23 to the free end 22 of the accommodating portion 21; and these clamping parts can clamp the magnetic element 30 and cooperate with the fastening stand 23 to fix the magnetic element 30.
  • the magnetic element 30 can be more conveniently detached by adoption of the plurality of cambered elastic clamping parts provided with gaps interposed there between to clamp the magnetic element 30.
  • the integrated lens assembly 20 and the light source plate 10 are fixed by a detachable connection mechanism, so that assembly, disassembly and maintenance can become more convenient.
  • the first optional fixing means is illustrated in FIGS. 1 to 7 , the shape of the integrated lens assembly 20 matches with the shape of the light source plate 10; the integrated lens assembly may be a light transmitting component of a plate shape; a plurality of elastic fasteners 26 extended in the direction towards the light source plate are spaced at the edge of the integrated lens assembly and configured to fasten the light source plate 10; the elastic fasteners 26 may be provided at the encircling part which is entirely extended in the same direction; and by adoption of the encircling part, the integrated lens assembly 20 encircles the entire light source plate 10, has the function of electric shock isolation, and meanwhile protects the light source plate 10.
  • the elastic fasteners 26 on an encircling part are provided along the encircling part for encircling the lens setting area and the power supply area.
  • the integrated lens assembly 20 is provided with a plurality of pairs of elastic jaws 27 which are extended towards the light source plate 10; the light source plate 10 is provided with clamping holes 13 which are arranged corresponding to the elastic jaws 27; and the elastic jaws 27 run through the clamping holes 13 and clamp the light source plate 10.
  • the elastic jaws 27 are disposed on the lens setting area of the integrated lens assembly 20 to approximately form a square.
  • the fixing means of adopting the mechanical connecting elements such as the elastic jaws 27 and the elastic fasteners 26 is an exemplary assembly method in consideration of both convenience and reliability. It should be conceived by those skilled in the art that the integrated lens assembly 20 and the light source plate 10 can also be fixed by various other common fixing means, for instance, fixing via a U-shaped clamp plate; the present invention only exemplifies two preferred fixing means; and the fixing of the integrated lens assembly 20 and the light source plate 10 by other fixing means shall obviously fall within the scope of protection of the present invention.
  • an adapter plate 41 is disposed between the power driving module 40 and the light source plate 10.
  • the electric connection between the power driving module 40 and the light source plate 10 may be achieved by a connection wire or connection wires, and main bodies of the power driving module and the light source plate can achieve insulating effect and have the function of electric shock protection.
  • the lens unit in the two embodiments of the present invention is a hemispherical lens 24 and is arranged in one-to-one correspondence with the LED light source 11.
  • FIG. 8 illustrates the hemispherical lens 24 applicable in the present invention.
  • the integrated lens assembly 20 is formed by integrally forming the plurality of hemispherical lenses 24.
  • a central portion of an incident surface 28 of the hemispherical lens 24 is concaved to form an accommodating cavity configured to accommodate the LED light source 11 and axisymmetric relative to the hemispherical lens 24.
  • the incident surface 28 can maximally receive light emitted by the LED light source 11.
  • a single LED generally adopts 120 DEG Lambert emission; the spacing between two LEDs is formed to allow uniform light to be obtained on a light-emitting surface after the mixing of light; by adoption of the lens, the luminous angle of the LED can be further expanded; and as shown in FIG. 8 , the light is deviated towards the direction further away from an optical axis after been refracted two times, so that the requirement of uniform light emission can be satisfied even at lower height, and hence the height of the lamp can be reduced and ultrathin lamp can be obtained.
  • a light-emitting surface 29 of the hemispherical lens 24 is not a regular hemispherical structure but an approximate ellipsoid structure. Because the accommodating cavity is concavely formed on the incident surface 28, the hemispherical lens 24 is of a structure with a thinner central portion and two thicker sides.
  • a straight line having an included angle ⁇ with the optical axis is led from an origin O of the lens and respectively intersects with the incident surface 28 and the light-emitting surface 29 of the lens; intersection points are respectively M and N; the length of the line segment MN is the thickness t of the lens; and the thickness t of the lens is monotonously progressively increased along with the increase of ⁇ within the range 0 ⁇ ⁇ ⁇ ⁇ (max), in which ⁇ (max) is ranged from 45° to 90°.
  • an included angle between paraxial light and the optical axis is increased after the paraxial light runs through the incident surface, and is further increased after the paraxial light runs through the light-emitting surface, so that the hemispherical lenses 24 can have better diffusion effect, and meanwhile, the problem of large paraxial light intensity of the LED light sources can be solved and more uniform flood lighting can be achieved.
  • the central portion of the light-emitting surface 29 of the hemispherical lens 24 is concaved to form an inverted-cone diffusion portion.
  • the light diffusion function can be achieved by increasing the refraction angle when the light is emitted from the light-emitting surface 29 due to the increasing of the incidence angle when the light is projected to the light-emitting surface 29.
  • the incident surface 28 and the light-emitting surface 29 of the hemispherical lens 24 may further be subjected to surface treatment, and the incident surface 28 and the light-emitting surface 29 are respectively treated to form a polished surface and a frosted surface.
  • the function of light diffusion and light uniformity can be achieved by utilization of the scattering properties of the frosted surface.
  • the present invention further discloses an LED lamp, which comprises a base taken as a mounting base and the LED light source module having the structure as described above.
  • the LED lamp has the advantages such as simple process, easy assembly, and safety and reliability.
  • the lens units in the LED lamp provided by the present invention are integrated to form the integrated lens assembly 20 which covers the outside of the entire light source plate 10 and has the function of electric shock protection. Meanwhile, the principle of mutual attraction between magnetic objects is also utilized; the plurality of accommodating portions 21 are extended outward on the integrated lens assembly 20; the through holes 12 are formed at positions of the light source plate 10 corresponding to the accommodating portions 21; and meanwhile, the magnetic elements 30 are fixed within the accommodating portions 21.
  • the integrated lens assembly 20 and the light source plate 10 are fixedly connected by a detachable connection mechanism such as elastic fasteners 26 and elastic jaws 27 at first, and then fixed by means of the magnetic force of the magnetic elements 30 fixed within the accommodating portions 21 and the magnetic base of the lamp, so that the entire integrated lens assembly 20 and the light source plate 10 can be fixed on the magnetic base of the lamp.
  • the LED lamp adopting the above fixing structure has a very easy assembly process.
  • the structure of the LED lamp is very safe and reliable. Therefore, the LED lamp is an LED lamp having the advantages of simple process, convent assembly and safety and reliability.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Led Device Packages (AREA)
EP15844987.6A 2014-09-22 2015-02-13 Led lamp and led light source module thereof Active EP3199861B1 (en)

Applications Claiming Priority (2)

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CN105276415A (zh) 2016-01-27
ES2767311T3 (es) 2020-06-17
EP3199861A4 (en) 2017-11-22
CN105508906A (zh) 2016-04-20
CN106931320A (zh) 2017-07-07
WO2016045304A1 (zh) 2016-03-31
EP3199861A1 (en) 2017-08-02
DE202015009561U1 (de) 2018-04-19

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