CN109185726B - LED light source - Google Patents

LED light source Download PDF

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Publication number
CN109185726B
CN109185726B CN201811209803.2A CN201811209803A CN109185726B CN 109185726 B CN109185726 B CN 109185726B CN 201811209803 A CN201811209803 A CN 201811209803A CN 109185726 B CN109185726 B CN 109185726B
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CN
China
Prior art keywords
light source
led light
lens
heat dissipation
base
Prior art date
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Active
Application number
CN201811209803.2A
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Chinese (zh)
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CN109185726A (en
Inventor
陈凯
黄建明
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.)
Hangzhou Hpwinner Opto Corp
Original Assignee
Hangzhou Hpwinner Opto Corp
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Publication date
Application filed by Hangzhou Hpwinner Opto Corp filed Critical Hangzhou Hpwinner Opto Corp
Priority to CN201811209803.2A priority Critical patent/CN109185726B/en
Publication of CN109185726A publication Critical patent/CN109185726A/en
Application granted granted Critical
Publication of CN109185726B publication Critical patent/CN109185726B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • 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
    • F21V19/0015—Fastening arrangements intended to retain 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
    • 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
    • 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
    • F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • 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
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • F21V29/89—Metals
    • 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
    • F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
    • F21Y2107/40—Light sources with three-dimensionally disposed light-generating elements on the sides of polyhedrons, e.g. cubes or pyramids
    • 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]

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention discloses an LED light source which comprises a light emitting component, a heat dissipation structure and a light transmission protection structure. The radiating structure comprises at least three uniformly distributed mounting surfaces, the light emitting assemblies are detachably connected with the mounting surfaces in one-to-one correspondence, and the light transmission protective structure is detachably connected with the radiating structure. Wherein the mounting surface is gradually retracted from one end to the other end thereof. In this embodiment, the installation face is used for fixed luminous subassembly, and luminous subassembly sets up along with the installation face slope to eliminated luminous dead angle, and then promoted the luminous effect of LED light source. The light of the luminous components which are uniformly distributed in the ring shape diverges to a plurality of directions, and the more the luminous components are arranged in the circumferential direction, the more uniform the luminous effect of the LED light source is.

Description

LED light source
Technical Field
The invention relates to the technical field of LEDs, in particular to an LED light source.
Background
In the prior art, most of LED light sources are of columnar structures, and dead angles exist in emergent light of the LED light sources of the structures. In addition, in the operation process, the LED light source can generate heat, and the heat dissipation structure in the current market is generally complex in arrangement, and correspondingly, the production cost is higher.
Disclosure of Invention
In order to solve the problems, the technical scheme of the invention is as follows:
an LED light source comprises a light emitting component, a heat dissipation structure and a light transmission protection structure;
The radiating structure comprises at least three circumferentially uniformly distributed mounting surfaces, and the light emitting assemblies are detachably connected with the mounting surfaces in one-to-one correspondence; the light-transmitting protective structure is detachably connected with the heat dissipation structure;
The mounting surface is gradually retracted from one end to the other end.
Preferably, the heat dissipation structure comprises side plates, the mounting surfaces are formed on the outer walls of the side plates, heat dissipation holes are formed between the adjacent side plates, and the tops of the side plates are connected into a whole.
Preferably, the heat dissipation structure further comprises a fixing seat, and the side plate is arranged on the fixing seat and integrally formed with the fixing seat.
Preferably, the heat dissipation structure comprises an aluminum plate, the aluminum plate is of a symmetrical structure with four bends, and the aluminum plate is provided with the mounting surface.
Preferably, the light-transmitting protective structure comprises lenses corresponding to the side plates one by one, and the lenses are detachably arranged on the mounting surface.
Preferably, the lens comprises a lens body and a clamping part, wherein the clamping part comprises an extension section and a hook section, and the hook section is connected with the lens body through the extension section; the lens body and the hook section are positioned on different sides of the side plate and clamp the side plate.
Preferably, the side plate is provided with an upper clamping hole and a limiting body, and the fixing seat is provided with a lower clamping hole; the clamping part at the upper part of the lens passes through the upper clamping hole and limits the hook section of the clamping part through the limiting body; the clamping part at the lower part of the lens passes through the lower clamping hole and limits the hook section of the clamping part through the fixing seat; the clamping parts at two sides of the lens are correspondingly clamped with the two sides of the side plate.
Preferably, the light-transmitting protective structure further comprises a first sealing ring, the lens is in sealing connection with the side plate through the first sealing ring and forms a first accommodating cavity, and the light-emitting component is accommodated in the first accommodating cavity.
Preferably, the light-transmitting protective structure comprises a PC cover, the aluminum plate cover is arranged in the PC cover, and the bottom of the aluminum plate is detachably connected with the PC cover.
Preferably, the heat dissipation structure is a die casting.
Preferably, screw posts are uniformly distributed on the inner ring surface of the fixing seat along the circumferential direction.
Preferably, screw columns are uniformly distributed on the inner ring surface of the PC cover along the circumferential direction.
Preferably, the LED lamp further comprises a base, one end of the base is detachably connected with the heat dissipation structure or/and the light transmission protection structure, and the other end of the base is connected with the external fixing structure.
Preferably, the device further comprises a support, wherein the support is detachably connected with the base; the support piece comprises a support plate connected with the base, and a second accommodating cavity is formed between the support plate and the base.
Preferably, the support member further comprises radiating ribs radially arranged on the support plate, and the radiating ribs face one side of the radiating structure.
Preferably, the support member further comprises an annular sealing groove arranged on the support plate, and a second sealing ring accommodated in the sealing groove, and the base is in sealing connection with the support plate through the second sealing ring.
Preferably, the device further comprises a control assembly, wherein the control assembly is detachably connected with the supporting plate and is accommodated in the second accommodating cavity; the control assembly comprises a control circuit and a first PCB welded with the control circuit.
Preferably, the light emitting assembly includes an LED element, and a second PCB board soldered with the LED element.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the LED light source, the light-emitting assembly is obliquely arranged along with the mounting surface, so that a light-emitting dead angle is eliminated, multi-angle light emission is realized, and the light-emitting effect of the LED light source is improved.
2. The light of the luminous components which are uniformly distributed in the ring shape diverges to a plurality of directions, and the more the luminous components are arranged in the circumferential direction, the more uniform the luminous effect of the LED light source is.
3. The adjacent side plates are not completely connected, and the unconnected parts of the adjacent side plates form the heat dissipation holes, namely the middle area is communicated with the outside through the heat dissipation holes, so that heat in the middle area can be timely dissipated, and heat generated by the light-emitting assembly is prevented from being accumulated in the middle area. In addition, in different embodiments, the PC cover and the base may also be provided with heat dissipation holes, so as to dissipate heat generated by the light emitting component.
Drawings
FIG. 1 is a burst-view of one embodiment of an LED light source of the present application;
FIG. 2 is an assembly view of one embodiment of an LED light source of the present application;
FIG. 3 is a schematic diagram of an embodiment of a heat dissipating structure of the present application;
FIG. 4 is a schematic diagram of one embodiment of a heat dissipating structure of the present application;
FIG. 5 is a schematic diagram of one embodiment of a heat dissipating structure of the present application;
FIG. 6 is a cross-sectional view of one embodiment of an LED light source of the present application;
FIG. 7 is a cross-sectional view of one embodiment of an LED light source of the present application;
FIG. 8 is a cross-sectional view of one embodiment of an LED light source of the present application;
FIG. 9 is a cross-sectional view of one embodiment of a heat dissipating structure of the present application;
Fig. 10 is an enlarged view of a portion a of fig. 6;
Fig. 11 is an enlarged view of a portion B of fig. 7;
FIG. 12 is a non-enlarged view of FIG. 8C;
FIG. 13 is a schematic view of a lens of the present application;
FIG. 14 is a schematic view of a lens of the present application;
FIG. 15 is a schematic view of a lens of the present application;
FIG. 16 is an exploded view of one embodiment of an LED light source of the present application;
FIG. 17 is an assembly view of one embodiment of an LED light source of the present application;
FIG. 18 is a schematic diagram of one embodiment of an LED light source of the present application;
FIG. 19 is a schematic view of a PC cover of the present application;
FIG. 20 is a schematic view of a PC cover of the present application;
FIG. 21 is a schematic view of a base of the present application;
FIG. 22 is a schematic view of one embodiment of a support of the present application;
FIG. 23 is a schematic view of one embodiment of a support of the present application;
FIG. 24 is a schematic view of one embodiment of a support of the present application;
Fig. 25 is a schematic diagram illustrating the principle of the lens.
The LED light-emitting device comprises a light-emitting component, 101, an LED element, 102, a second PCB, 2, a heat radiation structure, 201, a side plate, 201-1, an upper clamping hole, 201-2, a wiring hole, 201-3, a heat radiation hole, 201-4, a limiting body, 201-5, a curved rib, 202, a fixing seat, 202-1, a lower clamping hole, 202-2, a guide part, 202-3, a screw column, 202-4, a groove, 202-5, an end face, 202-6, a fixing seat body, 203, an aluminum plate, 203-1, a first mounting part, 203-2, a second mounting part, 203-3, a third mounting part, 3, a light-transmitting protective structure, 301, a lens body, 302, a clamping part, 302-1, an extension section, 302-2, a hook section, 303, a first sealing ring, 304, an annular groove, 305, an annular body, 306, a containing groove, 307, a PC cover, 4, a base, 5, a support piece, 501, a support plate, 501, a 1, a notch, 502, a heat radiation rib, 504, a second sealing groove, 6, a control seal groove, a control circuit, a 601, a first mounting part, a screw joint, a first sealing groove, a 601, a control circuit, a 601, a first sealing groove, a 602, a control joint, a 7, a third mounting part, a screw connector.
Detailed Description
The following detailed description refers to the accompanying drawings and specific embodiments.
Referring to fig. 1-25, an LED light source includes a light emitting component 1, a heat dissipation structure 2, and a light-transmitting protection structure 3. The radiating structure 2 comprises at least three uniformly distributed mounting surfaces, the light emitting assemblies 1 are detachably connected with the mounting surfaces in one-to-one correspondence, and the light transmission protective structure 3 is detachably connected with the radiating structure 2. Wherein the mounting surface is gradually retracted from one end to the other end thereof.
In detail, the light emitting assembly 1 serves as a light emitting member, which generates heat during light emission. The mounting surfaces of the heat dissipation structure 2 are uniformly distributed in a ring shape, one end of the mounting surface which is annularly arranged is gradually folded towards the other end, namely, the middle area formed by the mounting surfaces which are annularly arranged is thinner at one end relative to the other end.
The mounting surface is used for fixing the light emitting assembly 1, the shape of which is determined with reference to the structure of the light emitting assembly, preferably a plane surface is used. The luminous component 1 is obliquely arranged along with the mounting surface, so that luminous dead angles, especially luminous dead angles at the center of the vertical direction of the LED light source, are eliminated, multi-angle luminescence is realized, and the luminous effect of the LED light source is further improved. Meanwhile, the light rays of the light-emitting assemblies 1 which are uniformly distributed in an annular manner are dispersed in multiple directions, and the more the light-emitting assemblies 1 which are circumferentially arranged, the more uniform the light-emitting effect of the LED light source is.
The light-transmitting protective structure 3 is mounted on the heat dissipation structure 2 and is covered on the light-emitting component 1, and the covering of the light-transmitting protective structure can be understood as one-to-one covering of the light-transmitting protective structure 3 and the light-emitting component 1, and can also be understood as covering of a plurality of light-emitting components 1 by one light-transmitting protective structure 3. As is clear from the above, the heat generated by the light emitting module 1 naturally gathers in the hollow area formed by the mounting surface of the heat dissipating structure, and the heat dissipating structure needs to dissipate the heat of the portion.
With continued reference to fig. 1, 16 and 18, the light emitting assembly 1 includes LED elements 101 and a second PCB 102 soldered with the LED elements 101. In one embodiment, the second PCB 102 is disposed on the mounting surface with fasteners. The control components are connected through wires of the light emitting assembly 1, the wires can be guided through the heat dissipation structure and LED to the control components, and the wires can be flexibly routed according to the structure of the LED light emitting assembly without being deliberately guided by other parts.
With continued reference to fig. 1-9 and fig. 16-18, the heat dissipation structure 2 can take various forms, and two embodiments are described in detail below:
As shown in fig. 3-5, in one embodiment, the heat dissipation structure 2 includes side plates 201, the outer walls of the side plates 201 are formed with the above-mentioned mounting surfaces, heat dissipation holes 201-3 are provided between adjacent side plates 201, and the top portions of the respective side plates 201 are integrally connected. Therefore, the middle area formed between the side plates is located between the side plates of the embodiment, and heat dissipation in the middle area is achieved through the heat dissipation holes.
In detail, in this embodiment, the mounting surface is located on the outward facing surface of the side plate 201, and one end of the side plate 201 gradually inwardly receives the other end. The top of each side plate 201 is connected together; the top portion is understood to be the end of the side panel 201 that is adducting, i.e. the end of the middle region that is thinner as described above; the joining together is understood to be an integral formation, and is also understood to be a fixation by a process. The tops of adjacent side plates 201 are connected to form curved ribs 201-5, and the curved ribs 201-5 are finally gathered together at the top. The curved ribs 201-5 can enhance the rigidity and strength of the heat dissipation structure 2.
The adjacent side plates 201 are not completely connected, the unconnected parts of the adjacent side plates form the heat dissipation holes 201-3, and the middle area is communicated with the outside through the heat dissipation holes 201-3, so that heat in the middle area can be timely dissipated, and heat generated by the light emitting assembly 1 is prevented from being accumulated in the middle area.
Further, the heat dissipation structure 2 further includes a fixing base 202, and the lower portion of the side plate 201 is disposed on the fixing base 202 and integrally formed with the fixing base 202. In terms of technology, the side plate 201 and the fixing base 202 can be die-cast. The fixing base 202 adopts a ring structure, and two ends of the fixing base are open. The opening is understood to be that the fixing base 202 has a tubular fixing base body 202-6, the end of the fixing base body 202-6 has an end face 202-5, and the middle of the end face 202-5 is perforated, and it is understood that the end of the fixing base body 202-6 does not have the end face 202-5, and of course, the two opening forms can exist in one fixing base 202 at the same time. As shown in fig. 3 to 5, two opening forms are preferably simultaneously present in one fixing seat 202, wherein the upper end of the fixing seat 202 is provided with an end surface 202-5, a middle part of the end surface 202-5 is provided with a hole, and the edge of the hole is connected with a side plate 201. Screw posts 202-3 are circumferentially and uniformly distributed on the inner ring surface of the fixing seat 202 so as to facilitate the installation of other parts such as the base 4.
In the embodiment with the fixing seat 202, the part with the mounting surface is also provided with a wiring hole 201-2, the inner ring surface of the fixing seat 202 is provided with a guide part 202-2, the guide part 202-2 is provided with through holes, the through holes correspond to the wiring holes 201-2 one by one, and the electric wires of the light emitting assembly 1 enter the through holes of the corresponding guide part 202-2 through the wiring holes 201-2 and are led out to other parts.
In addition, the fixing base 202 may further be provided with a plurality of grooves 202-4, and the grooves 202-4 are beautiful and convenient for heat dissipation, and two arrangements of the grooves 202-4 are shown in fig. 3 and 5, but the arrangement of the grooves 202-4 of the present application is not limited to these two arrangements.
In another embodiment, as shown in fig. 16 and 18, the heat dissipation structure 2 of the present embodiment is different from the previous embodiment in that the structure of the side plate 201 and the fixing base 202 is not adopted, but the aluminum plate 203 is adopted. In detail, the aluminum plate 203 has a symmetrical structure of four bends. As shown in fig. 18, two folds in the middle of the aluminum plate 203 are folded inwards, so that a first installation part 203-1 is formed between the two folds; two bends at two ends of the aluminum plate 203 are folded outwards, a second mounting part 203-2 is formed at each of the two ends, and two third mounting parts 203-3 are formed between the first mounting part 203-1 and the second mounting part 203-2 of the aluminum plate 203. It is clear that the above-mentioned middle region is formed by connecting the aluminum plates.
Wherein different aluminum plates 203 are laminated at a first mounting portion 203-1 and connected together by fasteners. The present application does not limit the shape of the first mounting portion 203-1, and no matter what shape the first mounting portion 203-1 takes, the aluminum plates 203 do not interfere with each other after being mounted. The second mounting portion 203-2 is attached to other components, such as the base 4 or the light-transmissive shield assembly, by fasteners. The outward facing surface of the third mounting portion 203-3 forms the mounting surface described above, i.e., in this embodiment, the light emitting assembly 1 is fixed to the third mounting portion 203-3.
The aluminum plate 203 after mounting is gradually retracted from the lower end to the upper end, and a space is left between the adjacent second mounting portions 203-2 of the different aluminum plates 203, the space corresponding to the above-mentioned heat radiation holes 201-3 for heat radiation.
With continued reference to fig. 1 and fig. 6 to 17, the light generated by the light emitting assembly 1 is emitted to the outside through the light-transmitting protective structure 3, and the specific structure of the light-transmitting protective structure 3 is not limited in the present application, and for easy understanding, the following two embodiments are described below:
As shown in fig. 1 and 6-15, in one embodiment, the light-transmitting protective structures 3 are covered on the light-emitting assemblies 1 in a one-to-one correspondence, and the light-transmitting protective structures 3 are detachably disposed on the mounting surface and seal the light-emitting assemblies 1 between them and the mounting surface.
The light-transmitting protective structure 3 comprises a lens which can adjust the light: the light emitted by the light emitting component 1 is vertically irradiated to the external environment through the lens, and if the square of the emergent light is to be adjusted, the thickness of the lens can be changed, so that the aim of adjusting the light emitting direction is fulfilled. The principle of adjusting the light exiting direction of the lens is schematically illustrated in fig. 25.
Taking the heat dissipation structure 2 including the side plate 201 and the fixing base 202 as an example, the lens is detachably disposed on the mounting surface of the side plate 201, where the detachable connection is a connection manner such as a fastener connection, a clamping connection, and the like.
Further, in the present embodiment, the lens includes a lens body 301 and a clamping portion 302, the clamping portion 302 includes an extension section 302-1 and a hook section 302-2, the hook section 302-2 is connected to the lens body 301 through the extension section 302-1, and the lens body 301 and the hook section 302-2 are located on different sides of the side plate 201 and clamp the side plate 201.
Specifically, the lens body 301 is used for adjusting the light emitting direction, as shown in fig. 25. The periphery of the lens body 301 includes at least one clamping portion 302, and each clamping portion 302 is respectively clamped with the side plate 201. The two ends of the extension section 302-1 are respectively connected with the lens body 301 and the hook section 302-2, the length of the extension section 302-1 is determined by referring to the thickness of the side plate 201, that is, the length of the extension section 302-1 is equal to the thickness of the side plate 201, even the length of the extension section 302-1 is smaller than the thickness of the side plate 201 within a tolerance allowable range, and the two sections are in an excessively hard fit after being installed, so that the lens and the side plate are tightly combined to form a first protection, the mechanical damage of a light-emitting assembly positioned between the two sections is effectively prevented, and the protection level of the light-emitting assembly is improved. In addition, the hook section 302-2 and the lens body 301 are respectively located at the inner and outer sides of the side plate 201, and limit the running trend of the side plate 201 in the inner and outer directions.
Fig. 6-8 are sectional views of the assembly of the LED light source from different directions to show the connection relationship between the different clamping portions 302 on the lens and the side plate 201. Fig. 10-12 are partially enlarged to more clearly understand the snap-fit relationship with the side plate 201, respectively, of the details of the different snap-fit portions 302. Fig. 13-15 illustrate the lens from different angles, respectively, wherein the orientation of the lens in fig. 13 represents its installed state, and the orientation of the lens in fig. 14 corresponds to the top view of fig. 13.
Further, in the present embodiment, an upper clamping hole 201-1 and a limiting body 201-4 are provided on the side plate 201, and a lower clamping hole 202-1 is provided on the fixing seat 202. The clamping part 302 at the upper part of the lens body 301 passes through the upper clamping hole 201-1, and the hook section 302-2 of the clamping part 302 is limited by the limiting body 201-4. The clamping part 302 at the lower part of the lens body 301 passes through the lower clamping hole 202-1, and the hook section 302-2 of the clamping part 302 is limited by the fixing seat 202. The engaging portions 302 on both sides of the lens are engaged with the opposite sides of the side plate 201. In addition, the upper clamping hole 201-1 also has a heat dissipation effect, and the upper clamping hole 201-1 and the heat dissipation hole 201-3 form convection between each other, so that heat dissipation can be accelerated.
In detail, as shown in fig. 2-3, 5 and 9, the limiting body 201-4 is disposed at an inner side of the top of the side plate 201 and protrudes from the side plate 201, and may be in a plate-like or column-like structure, and is preferably integrally formed with the side plate 201. The limiting body 201-4 limits the hook section 302-2 corresponding to the limiting body, so that the clamping connection between the clamping connection part 302 and the side plate 201 is realized. The clamping structure is convenient to realize, convenient to install and good in stability.
The engaging portion 302 at the lower end of the lens may be engaged with the side plate 201 in the same manner as the engaging portion 302 at the upper end thereof, but in view of the compactness of the space structure, it is preferable to connect the engaging portion 302 with the fixing base 202: the end face 202-5 of the fixing seat 202 is provided with a lower clamping hole 202-1, a clamping part 302 at the lower end of the lens body 301 passes through the lower clamping hole 202-1, and a hook section 302-2 of the clamping part 302 is limited through the end face 202-5 of the fixing seat 202. The clamping structure skillfully utilizes the heat dissipation structure, saves the space occupied by the independent limiting part, and is more compact.
The two clamping parts at the upper end and the lower end of the lens jointly restrict the displacement freedom degree and the rotation freedom degree of the lens in the upper direction and the lower direction, and restrict the displacement freedom degree and the rotation freedom degree of the lens in the inner direction and the outer direction of the heat dissipation structure 2.
Further, a first accommodating cavity is formed between the lens and the side plate, and the light emitting component 1 is accommodated in the first accommodating cavity. As shown in fig. 15, the light-transmitting protective structure 3 further includes an annular body 305 and a first sealing ring 303, where the annular body 305 is fixed on the lens body 301, and an annular groove 304 is formed between the annular body 305 and the lens body 301. The first seal 303 is partially received in the annular groove 304 and disposed around the annular body 305, and the lens is sealed by compression of the first seal 303 with the side plate 201 so that the first receiving chamber is sealed.
In detail, the annular groove 304 can effectively prevent the first seal ring 303 from moving during the lens mounting process. After the lens is installed, the first sealing ring 303 is tightly adhered to the installation surface to seal, so that a second protection is formed for the light-emitting component 1, and the protection level of the light-emitting component 1 is further improved. The middle part of the annular body 305 forms a receiving groove 306. After the lens is mounted, the annular body 305 is closely attached to the mounting surface, and the first accommodating cavity is formed between the accommodating groove 306 and the mounting surface. The annular body 305 forms a third seal against the lighting assembly 1, thereby further improving the protection level of the lighting assembly. In view of the above, the present embodiment has at least three seals for the light emitting device 1, and the test results show that the three seals raise the protection level of the light emitting device to IP68, which is the highest protection level in the current art.
In addition, the first seal ring 303 is preferably made of a silicone rubber material, which has better weather resistance (weather resistance refers to a series of ageing phenomena such as fading, discoloration, cracking, chalking, strength reduction and the like of a plastic product due to the influence of external conditions such as sunlight irradiation, temperature change, wind blowing, rain, and the like), and has higher hardness, and is not easy to deform due to pressure during sealing connection, so that the situation of generating gaps is avoided, external mechanical damage can be born to a certain extent, and a foundation is laid for improving the protection level of the light-emitting component to IP 68.
In another embodiment, as shown in fig. 16-20, the light-transmitting protective structure 3 is not a lens, but a PC cover 307 is used, and the open end of the PC cover 307 is detachably connected to the heat-dissipating structure 2, and the PC cover 307 covers all the light-emitting components 1 together. Taking the heat dissipating structure 2 comprising the aluminum plate 203 as an example, the PC cover 307 is detachably connected to the aluminum plate 203 directly or indirectly by fasteners. The PC cover 307 is provided with heat dissipation holes 201-3 in the circumferential direction, and the inside of the PC cover 307 communicates with the outside through the heat dissipation holes 201-3, so that heat generated by the light emitting assembly 1 is dissipated, and the heat dissipation holes 201-3 in this embodiment preferably correspond to the gaps between the adjacent third mounting portions 203-3 one by one, so as to improve heat dissipation efficiency. .
Further, screw posts 202-3 are circumferentially and uniformly distributed on the inner ring surface of the PC cover 307 for connecting other components such as the base 4.
The above embodiments describe the heat dissipation structure 2 and the light-transmitting protective component in detail, but in other embodiments, the LED further includes a base 4, and as shown in fig. 1-2, 6-7, 16-17 and 21, the upper end of the base 4 is detachably connected to the heat dissipation structure or/and the light-transmitting protective structure 3, and the lower end is connected to a structure for fixing the LED light source externally through a threaded joint 7. Of course, the base 4 can also be provided with heat dissipation holes, so that heat generated by the light-emitting component can be dissipated, and the heat dissipation effect is improved.
With continued reference to fig. 1, 16 and 22-24, in other embodiments, the LED light source further includes a support 5, where the support 5 is detachably connected to the base 4, and a second accommodating cavity is formed between the support 5 and the base 4 for accommodating other components. The specific structure of the supporting member 5 is set according to the specific structures of the heat dissipation structure 2 and the light-transmitting protection structure 3, and two specific embodiments will be described below.
In one embodiment, as shown in fig. 16-18, the heat dissipation structure 2 employs an aluminum plate 203, the light-transmitting protective structure 3 employs a PC cover 307, and the support 5 includes a support plate 501. The screw posts 202-3 are disposed on the inner ring surface of the bottom of the PC cover 307, the supporting plate 501 is provided with a plurality of notches 501-1 along the circumferential direction, in this embodiment, the aluminum plate 203 is not separately provided with the wiring holes as in the above embodiment, the PC cover is also not separately provided with the guide parts as in the above embodiment, and the wires of the light emitting assembly are collected into the second accommodating cavity through the notches 501-1. The support plate 501 and the aluminum plate 203 are connected to the screw posts 202-3 of the PC cover 307 through fasteners, and the support plate 501 is connected to the base 4 through fasteners, and the second accommodating cavity is formed between the support plate 501 and the base.
In another embodiment, as shown in fig. 1 and fig. 21-24, the heat dissipation structure 2 adopts a structure including a side plate 201 and a fixing base 202, the light-transmitting protection structure 3 adopts a structure including a lens, and the support 5 includes a support plate 501 as described in the previous embodiment, but in this embodiment, the connection manner of the support plate 501, the fixing base 202, and the base 4 is different from the previous embodiment, and in this embodiment: on the one hand, the inner ring surface of the fixing seat 202 is provided with a screw column 202-3, and the supporting plate 501 and the base 4 are connected to the screw column 202-3 of the fixing seat 202 together through a fastener; on the other hand, the guiding portion 202-2 penetrates through the supporting plate, and the electric wire of the light emitting assembly 1 sequentially passes through the routing hole 201-2 and the guiding portion 202-2 to enter the second accommodating cavity.
The support 5 of the present embodiment includes, in addition to the support plate 501, heat dissipating ribs 502, and the heat dissipating ribs 502 face to one side of the heat dissipating structure. The heat dissipating ribs 502 increase the area in contact with the gas, thereby improving the heat dissipation effect.
Further, the radiating ribs 502 are radioactive and are arranged alternately in length, so that the fluidity of gas is enhanced, and the radiating effect is improved.
Further, the support 5 further comprises an annular sealing groove 503 provided on the support plate 501, and a second sealing ring 504 accommodated in the sealing groove 503. The base 4 and the support plate 501 are connected by a second sealing ring 504. The annular seal groove 503 may be a regular annular groove or an irregular groove which is formed by winding and encircling, as shown in fig. 24. The second sealing ring 504 is partially accommodated in the sealing groove 503, so as to seal the second accommodating cavity.
The second sealing ring 504 is made of foaming silicone rubber, the foaming silicone rubber has higher flexibility and elasticity, and when the supporting plate 501 is connected with the base 4, the annular edge of the base 4 presses the second sealing ring 504, so that a better sealing and waterproof effect is realized; meanwhile, the foaming silicon rubber also has the advantages of water resistance, ozone resistance, aging resistance and the like.
In other embodiments, the LED light source further comprises a control assembly 6, the control assembly 6 being mounted on the support plate 501 by fasteners and being located in the second receiving cavity. The control assembly 6 comprises a control circuit 601 and a first PCB 602 welded with the control circuit 601, wherein the first PCB 602 is arranged on the support plate 501. In the above embodiment, the electric wire introduced into the second accommodation chamber is electrically connected with the control module 6, thereby realizing control of the light emitting module 1.
The above disclosure is only a few specific embodiments of the present application, but the present application is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present application.

Claims (10)

1. The LED light source is characterized by comprising a light emitting component, a heat dissipation structure and a light transmission protection structure;
The radiating structure comprises at least three circumferentially uniformly distributed mounting surfaces, and the light emitting assemblies are detachably connected with the mounting surfaces in one-to-one correspondence; the light-transmitting protective structure is detachably connected with the heat dissipation structure;
the mounting surface is gradually retracted from one end to the other end;
The heat dissipation structure comprises side plates and a fixing seat, wherein the mounting surface is formed on the outer wall of each side plate, the side plates are circumferentially distributed, heat dissipation holes are formed between the adjacent side plates, the tops of the side plates are connected into a whole, and the bottoms of the side plates are connected with the fixing seat;
The light-transmitting protective structure comprises lenses which are in one-to-one correspondence with the side plates, and the lenses are detachably arranged on the mounting surface; the lens comprises a lens body and a clamping part, wherein the clamping part comprises an extension section and a hook section, and the hook section is connected with the lens body through the extension section; the lens body and the hook section are positioned on different sides of the side plate and clamp the side plate;
The side plates are provided with upper clamping holes and limiting bodies, and the fixing seats are provided with lower clamping holes; the clamping part at the upper part of the lens passes through the upper clamping hole and limits the hook section of the clamping part through the limiting body; the clamping part at the lower part of the lens passes through the lower clamping hole and limits the hook section of the clamping part through the fixing seat; the clamping sections at the two sides of the lens respectively penetrate through the radiating holes at the two sides of the corresponding side plate, and the hook sections of the two clamping sections are respectively limited through the two side surfaces of the corresponding side plate;
the light-transmitting protective structure further comprises a first sealing ring, the lens body is in sealing connection with the side plate through the first sealing ring and forms a first accommodating cavity, and the light-emitting component is accommodated in the first accommodating cavity.
2. The LED light source of claim 1 wherein the side plate is integrally formed with the mounting bracket.
3. The LED light source of claim 1, wherein the heat sink structure is a die cast.
4. The LED light source of claim 1, wherein screw posts are circumferentially and uniformly distributed on the inner ring surface of the fixing base.
5. The LED light source of claim 1, further comprising a base, wherein one end of the base is detachably connected to the heat dissipating structure and/or the light transmitting protective structure, and the other end is connected to the external fixing structure.
6. The LED light source of claim 5, further comprising a support member detachably connected to the base; the support piece comprises a support plate connected with the base, and a second accommodating cavity is formed between the support plate and the base.
7. The LED light source of claim 6, wherein the support further comprises heat dissipating ribs radially disposed on the support plate, the heat dissipating ribs facing the heat dissipating structure.
8. The LED light source of claim 6 wherein the support further comprises an annular seal groove provided on the support plate and a second seal ring received in the seal groove, the base and support plate being sealingly connected by the second seal ring.
9. The LED light source of claim 6, further comprising a control assembly removably coupled to the support plate and received in the second receiving cavity; the control assembly comprises a control circuit and a first PCB welded with the control circuit.
10. The LED light source of claim 1, wherein the light emitting assembly comprises an LED element, and a second PCB board soldered with the LED element.
CN201811209803.2A 2018-10-17 2018-10-17 LED light source Active CN109185726B (en)

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CN102644866A (en) * 2012-03-07 2012-08-22 厦门天力源光电科技有限公司 LED (Light-Emitting Diode) lamp bulb with good heat radiation
CN202674883U (en) * 2012-04-06 2013-01-16 王龙漾 Lamp bulb with heat dissipated easily
CN103047567A (en) * 2012-12-19 2013-04-17 浙江阳光照明电器集团股份有限公司 Omnidirectional LED bulb lamp
CN203404657U (en) * 2013-08-22 2014-01-22 厦门祺力特照明有限公司 Complete-circle light-emission LED light
CN103672526A (en) * 2013-12-30 2014-03-26 蔡干强 Bulb with good heat dissipating effect
CN104879668A (en) * 2015-06-16 2015-09-02 上海源明照明科技有限公司 High-power LED lamp
CN208670630U (en) * 2018-10-17 2019-03-29 杭州华普永明光电股份有限公司 A kind of LED light source

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102644866A (en) * 2012-03-07 2012-08-22 厦门天力源光电科技有限公司 LED (Light-Emitting Diode) lamp bulb with good heat radiation
CN202674883U (en) * 2012-04-06 2013-01-16 王龙漾 Lamp bulb with heat dissipated easily
CN103047567A (en) * 2012-12-19 2013-04-17 浙江阳光照明电器集团股份有限公司 Omnidirectional LED bulb lamp
CN203404657U (en) * 2013-08-22 2014-01-22 厦门祺力特照明有限公司 Complete-circle light-emission LED light
CN103672526A (en) * 2013-12-30 2014-03-26 蔡干强 Bulb with good heat dissipating effect
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CN208670630U (en) * 2018-10-17 2019-03-29 杭州华普永明光电股份有限公司 A kind of LED light source

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