CN107781668A - LED filament lamp - Google Patents

LED filament lamp Download PDF

Info

Publication number
CN107781668A
CN107781668A CN201711164311.1A CN201711164311A CN107781668A CN 107781668 A CN107781668 A CN 107781668A CN 201711164311 A CN201711164311 A CN 201711164311A CN 107781668 A CN107781668 A CN 107781668A
Authority
CN
China
Prior art keywords
light source
heat transfer
led
transfer platform
filament lamp
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.)
Pending
Application number
CN201711164311.1A
Other languages
Chinese (zh)
Inventor
曹亮亮
王其远
李婉珍
林运南
陈慧武
杨小明
周华斌
刘伟
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.)
Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Original Assignee
Zhangzhou Lidaxin Optoelectronic Technology Co ltd
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 Zhangzhou Lidaxin Optoelectronic Technology Co ltd filed Critical Zhangzhou Lidaxin Optoelectronic Technology Co ltd
Priority to CN201711164311.1A priority Critical patent/CN107781668A/en
Publication of CN107781668A publication Critical patent/CN107781668A/en
Pending legal-status Critical Current

Links

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
    • 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
    • F21K9/238—Arrangement or mounting of circuit elements integrated in the light source
    • 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
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
    • 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
    • F21V19/002—Fastening arrangements intended to retain light sources the fastening means engaging the encapsulation or the packaging of the semiconductor device
    • 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
    • F21V19/0025—Fastening arrangements intended to retain light sources the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections
    • 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
    • F21V29/85—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems characterised by the material
    • 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]

Landscapes

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

Abstract

A kind of LED filament lamp, including body, conduct heat platform and light source strip, the light source strip includes the multiple LED light sources of substrate and interval setting on the substrate, the heat transfer platform is arranged on the top of the body and thermally coupled with the body, the substrate is made from a material that be thermally conductive, the heat transfer platform is provided with least one pair of connecting portion, the connecting portion is disposed on the heat transfer platform and thermally coupled with the heat transfer platform respectively, the light source strip is bent to form curve or meander line structure, the both ends of the light source strip are separately fixed on the connecting portion and thermally coupled with the connecting portion, the light source strip is provided with the conducting end electrically connected with the external world, the LED light source electrically connects after being electrically connected to each other with the conducting end.The LED filament light fixture of the present invention has the advantages of big lighting angle, good heat dissipation effect.

Description

LED filament lamp
Technical field
The present invention relates to lighting field, particularly a kind of LED filament lamp.
Background technology
At present, as LED chip manufacture and encapsulation technology reach its maturity, the cost of LED element substantially reduces, LED is obtained More and more extensive application is arrived.In field of LED illumination, LED energy-conservation and long-life advantage have obtained sufficient embodiment, market On emerge in large numbers increasing LED.Especially, it is more and more because LED filament lamp is in the very close traditional incandescent lamp of outward appearance LED filament lamp commercially favored by consumers in general.
But there is stronger directionality because LED chip is luminous, existing LED filament lamp is often deposited in the market Lighting angle is less than normal the problem of, the light-out effect as the conventional lamps such as incandescent lamp is unable to reach so that the popularization of LED It is restricted with use.In addition, existing LED filament lamp generally require it is scattered toward being filled with bulb housing in the production process of product Hot gas, to solve the heat dissipation problem of LED strand, but this make it that production technology is both complicated or unreliable, in production efficiency and Very big puzzlement is brought in manufacturing cost.Therefore, it is big again without being filled with heat transmission gas in bulb housing how to design a kind of lighting angle The LED filament lamp of body turns into a technical problem of current urgent solution.
The content of the invention
In view of this, it is necessary to provide a kind of LED filament lamp, the LED filament lamp lighting angle is big and without being filled with to it Radiate gas.
A kind of LED filament lamp, including body, heat transfer platform and light source strip, the light source strip include substrate and interval setting Multiple LED light sources on the substrate, the heat transfer platform are arranged on the top of the body and, the substrate thermally coupled with the body It is made from a material that be thermally conductive, the heat transfer platform is provided with least one pair of connecting portion, and the connecting portion is disposed on the heat transfer platform respectively Upper and thermally coupled with the heat transfer platform, the light source strip is bent to form curve or meander line structure, and the both ends of the light source strip are solid respectively It is scheduled on the connecting portion and thermally coupled with the connecting portion, the light source strip is provided with and the extraneous conducting end electrically connected, institute State after LED light source is electrically connected to each other and electrically connected with the conducting end.
Further, the light source strip is directed away from the direction of the heat transfer platform and is bent to form domes, the LED light source It is arranged on the light source strip backwards to the outer surface that the heat transfer platform is set.
Further, in addition to bulb housing, the quantity of the light source strip is at least two, and the bulb housing is located at the heat transfer In being contained on platform and by the light source strip, the light source strip intersects setting.
Further, the LED light source on the light source strip by an encapsulated layer be integrally coated togather forming face light light Source.
Further, the body is provided with radiating part, and the heat transfer platform and the radiating part are thermally coupled, and the radiating part is by insulating Material is made.
Further, the substrate is made up of flexible metallic material.
Further, the substrate includes the line layer of metal level and setting on the metal layer, and the LED light source is upside-down mounting LED light source, the line layer electrically connect with the LED light source and conducting end.
Further, the quantity of the conducting end is two, is separately positioned on the both ends of the light source strip.
Further, the encapsulated layer is fabricated from a flexible material, and fluorescent material is provided with the encapsulated layer, the fluorescent material is by described The light that LED light source is sent excites the light for sending another wavelength.
Further, the light source strip is provided with two groups of LED light source groups being connected in series respectively, the LED light source group hair Go out different colours or the light of colour temperature.
Further, the LED light source group is electrically connected with external power source respectively, and controller, the control are provided with external power source Device processed controls the intensity for the curtage for supplying the LED light source group respectively.
Further, in addition to connecting plate, the connecting plate are set in the periphery of the heat transfer platform, and described in connecting plate correspondence Heat transfer platform is provided with resigning hole, and the conducting end that each light source strip is corresponded on the connecting plate is additionally provided with electrode terminal, the electrode terminal One end electrically connected with the connecting plate, the other end of the electrode terminal is provided with elastic contact blade, and the elasticity of the electrode terminal is touched Piece flexibly abuts with the conducting end on the light source strip to realize electrical connection respectively.
Compared with prior art, the LED filament lamp by the light source strip by being bent to form curve or meander line structure, and incites somebody to action The both ends of light source strip are fixed on the connecting portion respectively thermally coupledly, the LED filament is had the advantages of lighting angle is big；And And by light source strip both ends it is respectively thermally coupled be fixed on the connecting portion so that the LED filament lamp work caused by heat can To be conducted to body by connecting portion in time, and outwardly distributed by body, can so make it that the LED filament lamp need not Radiating gas is filled with bulb housing, radiating effect is good so that the manufacture production process of LED filament lamp product is more simple.
Brief description of the drawings
Fig. 1 is the exploded view of first embodiment LED filament lamp.
Fig. 2 is the assembling figure of LED filament lamp shown in Fig. 1.
Fig. 3 is diagrammatic cross-sections of the Fig. 2 along line A-A.
Fig. 4 is the schematic diagram of light source strip.
Description of reference numerals：
The encapsulated layer of 10 lamp holder 33
The bulb housing of 12 driving plate 40
The connecting plate of 20 body 50
The 21 heat transfer resigning holes of platform 51
The electrode terminal of 22 radiating part 52
The elastic contact blade of 211 connecting portion 53
30 light source strips 60 cover
The through hole of 31 substrate 61
The flange of 32 conducting end 62
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 to Fig. 4 is refer to, the LED filament lamp includes lamp holder 10, driving plate 12, body 20, connecting plate 50, covering 60th, light source strip 30 and bulb housing 40.The top of lamp holder 10 is connected with the bottom of body 20, and driving plate 12 is placed in lamp holder 10 In the receiving space formed after being connected with body 20.The heat transfer platform 21 be arranged on the top of the body 20 and with the body 20 is thermally coupled.The connecting plate 50 is set in the periphery of the heat transfer platform 21, and the covering 60 is covered on the heat transfer platform 21 and is connected to this The inner side of body 20.Light source strip 30 is bent to form curve or meander line structure, and its both ends and heat transfer platform 21 are mutually thermally coupled, bulb To being connected, the bulb housing 40 is located on the heat transfer platform 21 and by the light source strip 30 at the top of the bottom of shell 40 and body 20 In being contained in.
The light source strip 30 includes substrate 31 and the multiple LED light source (not shown) being disposed on the substrate 31, The substrate 31 is made from a material that be thermally conductive, it may be preferable that the substrate 31 is made up of flexible metallic material.LED on the light source strip 30 Light source is integrally coated togather forming face illuminating source by an encapsulated layer 33.In the present embodiment, the number of the light source strip 30 It is at least two to measure, and the direction that the light source strip 30 is directed away from the heat transfer platform 21 is bent to form domes, the LED light source It is arranged on the light source strip 30 and is intersected setting backwards to the outer surface that the heat transfer platform 21 is set, the light source strip 30.So, light Source bar 30 can be emitted beam with one way or another, so that LED filament light fixture has the advantages of lighting angle is big.
The heat transfer platform 21 is provided with least one pair of connecting portion 211, and the connecting portion 211, which is respectively separated, is arranged on the heat transfer platform It is on 21 and thermally coupled with the heat transfer platform 21, the both ends of the light source strip 30 be separately fixed on the connecting portion 211 and with it is described Connecting portion 211 is thermally coupled.The platform 21 that conducts heat in the present embodiment is provided with two pairs i.e. 4 connecting portions 211.The body 20 is provided with Radiating part 22, the heat transfer platform 21 and the radiating part 22 are thermally coupled, and the radiating part 22 is made up of insulating materials.LED filament lamp works When, because heat transfer platform 21 and the body 20 are thermally coupled, heat caused by light source strip 30 can be conducted by the connecting portion 211 Conduct to body 20 to heat transfer platform 21, then by heat transfer platform 21, outwardly distributed heat by body 20.So, can be very Solve the heat dissipation problem of light source strip 30 well, it is no longer necessary to be filled with bulb housing 40 radiating gas come secondary light source bar 30 dissipate Heat so that LED filament lamp product is more simple in process of production.
Fig. 1 and Fig. 4 is refer to, the light source strip 30 is provided with the conducting end 32 electrically connected with the external world, the LED light source phase Mutually electrically connected after electrical connection with the conducting end 32.In the present embodiment, the quantity of the conducting end 32 is two, is separately positioned on this The both ends of light source strip 30.Substrate 31 on the light source strip 30 includes the line of metal level (not shown) and setting on the metal layer Road floor (not shown), the LED light source are flip LED light source, and the line layer is electrically connected with the LED light source and conducting end 32 Connect.Encapsulated layer 33 on the light source strip 30 is fabricated from a flexible material, and is so easy to not interfere with the light when bending light source strip 30 The performance of source bar 30.Fluorescent material is provided with the encapsulated layer 33, the light that the fluorescent material is sent by the LED light source excites hair Go out the light of another wavelength.It is to be appreciated that two groups of LED lights being connected in series respectively are set on the light source strip 30 Source group, the LED light source group send different colours or the light of colour temperature, to meet the greater demand of consumer.The LED light source Group is electrically connected with external power source (not shown) respectively, and controller is provided with external power source, and the controller controls supply institute respectively State the intensity of the curtage of LED light source group.
When assembling the LED filament lamp, the connecting plate 50 is set in the periphery of the heat transfer platform 21, and is accommodated in body 20 It is interior.The corresponding heat transfer platform 21 of the connecting plate 50 is provided with resigning hole 51, so that the connecting plate 50 can be worn by the resigning hole 51 Cross the heat transfer platform 21 and be set in its periphery.The conducting end 32 that each light source strip 30 is corresponded on the connecting plate 50 is additionally provided with electrode tip Son 52, one end of the electrode terminal 52 electrically connects with the connecting plate 50, and the other end of the electrode terminal 52 is provided with elasticity and touched Piece 53, the elastic contact blade 53 of the electrode terminal 52 flexibly abut with the conducting end 32 on the light source strip 30 to realize respectively Electrical connection.The one end of driving plate 12 electrically connects with lamp holder 10, and the other end electrically connects with connecting plate 50, can so make external power source Suitable electric energy supply light source strip 30 is provided.By setting electrode terminal 52 on connecting plate 50 so that light source strip 30 and driving The electrical connection of plate 12 eliminates traditional bonding wire connected mode so that LED filament lamp operates more easy in process of production.
Overall substantially back-off bowl-shaped shell, the covering 60 of the covering 60 is made up of insulating materials.The covering 60 is corresponding to be connected The position of socket part 211 is additionally provided with through hole 61, can be with so as to the end of two light source strips 30 in the present embodiment provided with four through holes 61 Each it is connected through corresponding through hole 61 with the connecting portion 211.The bottom of covering 60 is additionally provided with flange 62 outwardly, the lamp The position of 20 inner side corresponding flange of head body 62 is provided with neck (not shown), and the covering 60 is covered on the heat transfer platform 21 and by described Flange 62 is connected in the body 20 on side bayonet slot.The surface of the covering 60 has certain reflection action, can lift this The light efficiency of LED filament lamp.
The foregoing is only present pre-ferred embodiments, be not intended to limit the invention, it is all in spirit of the invention and Within principle, any modification, replacement, improvement etc. on an equal basis for being made, it should be included within the scope of protection of the invention.

Claims (12)

1. a kind of LED filament lamp, including body, heat transfer platform and light source strip, the light source strip include substrate and are disposed on Multiple LED light sources on the substrate, the heat transfer platform are arranged on the top of the body and thermally coupled with the body, and its feature exists In：The substrate is made from a material that be thermally conductive, and the heat transfer platform is provided with least one pair of connecting portion, and the connecting portion is disposed on respectively On the heat transfer platform and thermally coupled with the heat transfer platform, the light source strip is bent to form curve or meander line structure, and the two of the light source strip End be separately fixed at it is on the connecting portion and thermally coupled with the connecting portion, the light source strip be provided with the external world electrically connect leads Electric end, the LED light source electrically connect after being electrically connected to each other with the conducting end.
2. LED filament lamp according to claim 1, it is characterised in that：The light source strip is directed away from the side of the heat transfer platform To domes are bent to form, the LED light source is arranged on the light source strip backwards to the outer surface that the heat transfer platform is set.
3. LED filament lamp according to claim 2, it is characterised in that：Also include bulb housing, the quantity of the light source strip is At least two, in the bulb housing is located on the heat transfer platform and is contained in the light source strip, the light source strip, which intersects, to be set Put.
4. LED filament lamp according to claim 1, it is characterised in that：LED light source on the light source strip is by an encapsulation Layer is integrally coated togather forming face illuminating source.
5. LED filament lamp according to claim 4, it is characterised in that：The body is provided with radiating part, the heat transfer platform with The radiating part is thermally coupled, and the radiating part is made up of insulating materials.
6. LED filament lamp according to claim 1, it is characterised in that：The substrate is made up of flexible metallic material.
7. LED filament lamp according to claim 1, it is characterised in that：The substrate includes metal level and is arranged on the metal Line layer on layer, the LED light source are flip LED light source, and the line layer electrically connects with the LED light source and conducting end.
8. LED filament lamp according to claim 1, it is characterised in that：The quantity of the conducting end is two, is separately positioned on The both ends of the light source strip.
9. LED filament lamp according to claim 4, it is characterised in that：The encapsulated layer is fabricated from a flexible material, the encapsulated layer In be provided with fluorescent material, the light that the fluorescent material is sent by the LED light source excites the light for sending another wavelength.
10. LED filament lamp according to claim 1, it is characterised in that：The light source strip is provided with two groups of companies of series connection respectively The LED light source group connect, the LED light source group send different colours or the light of colour temperature.
11. LED filament lamp according to claim 10, it is characterised in that：The LED light source group is electric with external power source respectively Connection, is provided with controller in external power source, and the controller controls the strong of the curtage that supplies the LED light source group respectively Degree.
12. LED filament lamp according to claim 1, it is characterised in that：Also include connecting plate, the connecting plate is set in this The periphery of heat transfer platform, and the connecting plate corresponds to the heat transfer platform and is provided with resigning hole, and leading for each light source strip is corresponded on the connecting plate Electric end is additionally provided with electrode terminal, and one end of the electrode terminal is electrically connected with the connecting plate, and the other end of the electrode terminal is set Flexible contact, the elastic contact blade of the electrode terminal flexibly abut with the conducting end on the light source strip to realize electricity respectively Connection.
CN201711164311.1A 2017-11-21 2017-11-21 LED filament lamp Pending CN107781668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711164311.1A CN107781668A (en) 2017-11-21 2017-11-21 LED filament lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711164311.1A CN107781668A (en) 2017-11-21 2017-11-21 LED filament lamp

Publications (1)

Publication Number Publication Date
CN107781668A true CN107781668A (en) 2018-03-09

Family

ID=61430391

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711164311.1A Pending CN107781668A (en) 2017-11-21 2017-11-21 LED filament lamp

Country Status (1)

Country Link
CN (1) CN107781668A (en)

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