CN103069216B - Led - Google Patents
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- CN103069216B CN103069216B CN201180038878.9A CN201180038878A CN103069216B CN 103069216 B CN103069216 B CN 103069216B CN 201180038878 A CN201180038878 A CN 201180038878A CN 103069216 B CN103069216 B CN 103069216B
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- Prior art keywords
- led
- pcb
- circuit board
- printed circuit
- converter
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Classifications
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- 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
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
- F21V23/026—Fastening of transformers or ballasts
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- 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
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- 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
- F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
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- 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
- F21V29/71—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements
- F21V29/713—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks using a combination of separate elements interconnected by heat-conducting means, e.g. with heat pipes or thermally conductive bars between separate heat-sink elements in direct thermal and mechanical contact of each other to form a single system
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/44—Details of LED load circuits with an active control inside an LED matrix
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- 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
- F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
- F21V19/004—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources by deformation of parts or snap action mountings, e.g. using clips
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- 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)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Power Engineering (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The present invention relates to a kind of LED (1), described LED has converter (6) and is arranged on the device be connected with described converter of the light emitting diode (8,49) at least one printed circuit board (PCB) (9).Converter be arranged on be made up of electrically non-conductive material, fully surround converter, multi-piece type, in lockable housing (20).
Description
Technical field
The present invention is based on a kind of LED.In addition, the present invention relates to a kind of lighting apparatus being equipped with this LED.
Background technology
Bibliography GB2465966A discloses a kind of LED (LED of tubulose, lightemittingdiodeordevice, radiative diode or equipment, also referred to as light emitting diode), in the fluorescent lamp contact site that described LED can be encased in lighting apparatus as the replacing part of fluorescent lamp or lamp socket.LED has transparent pipe, and linear LED matrix is placed in described transparent pipe.Although this structure provides good protection relative to what contact LED matrix undesirably for the part be energized, bring LED relative to the thermal coupling of the difference of surrounding environment thereupon, make the cooling damaging LED.The thermal coupling of this variation can cause the operating temperature raised, and then causes lower light efficiency rate and the shortening in service life of LED.Usual LED should have long service life and high light output, and described LED is designed to the replacing part of conventional fluorescent lamps and reequips LED module also referred to as fluorescent lamp.Fluorescent lamp repacking LED module should be configured to contact protection portion with insulating for the part be energized, but wherein insulation division can make LED be deteriorated relative to the thermal coupling of surrounding environment, this damages service life simultaneously.
Summary of the invention
The object of this invention is to provide a kind of LED, the feature of described LED is good contact protection and high efficiency.
Described object is realized by a kind of LED, its light-emitting diode assembly that there is converter and be connected with described converter, described light-emitting diode assembly is arranged at least one printed circuit board (PCB), it is characterized in that, described converter is arranged in housing that be made up of electrically non-conductive material, that fully surround described converter.
Draw especially favourable design in this article.
In addition, by the invention provides a kind of LED illumination device, described LED illumination device has the LED with this design.
Fluorescent lamp repacking LED module can be used as according to LED of the present invention and be characterised in that high efficiency and low thermic load.In addition, described LED provides good contact protection for the part for being energized.
The efficiency in units of lumens/watt of this system is high and is especially better than the efficiency of the fluorescent lamp that will substitute, and wherein also ensures high service life simultaneously.Do not need special converter, such as have the voltage changer of the extremely low output voltage (SELV, SafeExtraLowVoltage, SELV) being less than 50V, the efficiency of described converter is normally inadequate.
By being arranged on by converter in housing that surround converter completely, that be made up of electrically non-conductive material, realize especially safe device, because get rid of the energized part of contact transformation device safely.
Advantageously, housing be configured to two-piece type and two housing parts mutually lock.Thereby, it is possible to converter to be incorporated into simply in housing and to close described housing.Locking can not easily be removed, especially can not when do not have specific purpose tool, especially exert a force and/or destroy housing remove, make further thus close to more difficult for the part that is energized.
Suitably, housing design becomes for hold from described housing outstanding LED printed circuit board (PCB) and have protuberance, described protuberance by for be energized, the spring contacts that is connected with converter is flexibly pressed to LED printed circuit board (PCB).Thereby, it is possible to realize the simple contact of LED printed circuit board (PCB), described contact realize covering well LED printed circuit board (PCB) simultaneously with the part for being energized of driver.
By form have be configured to alternatively lock hook form, the housing of sticking department for lock with cooling body, realize installation lamp and the reliable mechanical connection between housing and cooling body simply.This is particular importance, because LED printed circuit board (PCB) is arranged on cooling body usually, and is ensured by the reliable mechanical connection between cooling body and housing: the part for being energized that by mistake can not contact LED printed circuit board (PCB).
In addition it is appropriate that be provided with at least two LED printed circuit board (PCB)s, described at least two LED printed circuit board (PCB)s preferably can be connected to each other by means of socket connection.Thus, also can manufacture larger LED simply, for described larger LED, or only can not can expend with large the single printed circuit board (PCB) manufacturing enough size and shapes.Such as is connected compares with the line of welding, socket connection also provides especially good protection to prevent the part of contact for being energized.
Especially favourable form of implementation is the LED of at least one had in following characteristics:
Converter has booster converter or buck converter,
LED is configured to the repacking module of the replacing part as fluorescent lamp,
Be provided with for by two of LED interconnective safeties of terminal, described safeties preferably as the replacing part of the starter of fluorescent lamp,
Two terminals (14,15) of LED are interconnected by short-circuit conductors (13).
This converter is especially efficient.Especially the LED of the repacking module be configured to for alternative fluorescent lamp can be used simply, because can continue thus to use the existing lighting apparatus for fluorescent lamp.Lamp for described lighting apparatus must meet the particular/special requirement of security, makes the present invention especially be used advantageously in described lamp.Safeties are for avoiding the high electric current of danger that may damage LED or harm user.If substitute starter with described safeties, so realize especially simple structure and can change it simply when safeties damage.
Having par section by cooling body and having cross section is alternatively that semicircular outer portion part is for effectively dispelling the heat, wherein LED printed circuit board (PCB) is flexibly pressed in the par section of cooling body, realizes LED printed circuit board (PCB) being fixed on cooling body especially simply at especially good heat trnasfer simultaneously.In addition, avoid damaging printed circuit board (PCB) by flexible compression, this is such as because the assembly for being energized and the contact of conduction cooling body are expect from the viewpoint of security.The outer portion part of semicircle realizes the moulding similar to conventional fluorescent lamp.
Advantageously, between par section and LED printed circuit board (PCB), insulation film is provided with.Therefore, LED printed circuit board (PCB) and cooling body are electrically insulated from each other, and this improves security particularly by with under type, namely reliably avoid applying to cause dangerous voltage when being contacted by user on cooling body.
Equally advantageously, LED printed circuit board (PCB) is flexibly pressed in the section of par by the Fastener by being made up of electrically non-conductive material.This realizes with simple mechanism reliably fixing LED printed circuit board (PCB), wherein improves security further by the insulation characterisitic of Fastener, because therefore protect the region covered by Fastener of printed circuit board (PCB) not to be touched.So especially advantageously, make described Fastener cover the major part of LED printed circuit board (PCB), especially cover almost whole surface, such as, by only vacating the radiation outgoing plane of LED, or by using the see-through card gripping members Fastener Fastener that also can hide LED.
When in groove LED printed circuit board (PCB) being encased in cooling body and when being remained on by Fastener in the depressed part of cooling body, realize especially simple structure.This especially realizes the contact protection of the seamed edge of printed circuit board (PCB) and the especially safe structure that reliably keeps Fastener and then realize LED.Be configured to the depressed part for fixing Fastener by the groove for fixing LED printed circuit board (PCB) of cooling body simultaneously, realize the especially simple structure with high contact protection.
The distance at the edge of described electric component and electronic building brick distance printed circuit board (PCB) is made to be greater than 6mm on a printed circuit by electric component and electronic building brick being arranged, also improve security equally, because required creep age distance and clearance can be ensured thus.
Suitably, light emitting diode is connected and Zener diode and each light emitting diode inverse parallel.Can run LED with high supply voltage by series circuit, this raises the efficiency.Zener diode stops the whole lamp when a LED fault to break down, and must not carry out the replacing improving danger thus, because especially high for the danger of the part be energized in this contact.
Described object is equally also realized by a kind of LED illumination device, and described LED illumination device has the safeties according to LED of the present invention and the choke coil of connecting with converter alternatively and/or alternative starter.Have and can run especially safely and economically according to the advantage known for LED according to the LED illumination device of LED of the present invention.Safeties location in the illumination device simplifies installation and the replacing of safeties.The space in LED is saved in the location of choke coil and/or safeties, and described LED such as can hold more light emitting diode thus.From the viewpoint of security, this device is also favourable, because can limit the electric current flow in lighting apparatus whereby.
Especially according to the present invention, a kind of is favourable for detecting the aging method of LED, wherein measures and falls the voltage on light-emitting diode assembly, and from measurement result, release the ageing state of LED.Avoid equally thus carrying out unnecessary and relevant to security risks too early replacing to lamp, such as came to run for a long time with the brightness reduced, this equally also can mean the danger in the region that will illuminate.
Suitably, measured voltage and reference value compared and determine from comparative result, whether LED reaches its service life.This is especially simple method.
According to an aspect of the present invention, especially when the Fastener of electric insulation being arranged on the upside of LED printed circuit board (PCB) and insulation film being arranged between LED printed circuit board (PCB) and cooling body, following structure is proposed, described structure realizes insulation that is that double and/or that strengthen simply for the part for being energized, and improves the cooling of thermal coupling and then improvement LED and its light emitting diode simultaneously.Described structure can be implemented simply, make almost can to cancel the wiring and/or wiring that all expend.This constructional design can be designed and such as until the working voltage on the side of LED terminal of 500V or higher drives with multiple possible converter topology.
Realize best systematic function in can select corresponding transducer type according to the fluorescent lamp type that will substitute, wherein such as, booster converter (BoostConverter) can be selected for the long module that should substitute fluorescent lamp L58W, and such as such as L18W module short lamp for, buck converter (BuckConverter) can be used.
Usually, the invention is characterized in that the part being used for being energized and the Partial security that can contact separate with permission by the high efficiency of system.Extremely simply cost-saving installation is possible, wherein independently can use the present invention with corresponding converter topology (buck converter, booster converter, passive transducer, SELV).Embodiment allows the heat radiation on high calorifics, and described heat radiation is better than the heat radiation of the LED module in glass cell-shell, wherein realizes the service life of the raising of LED simultaneously.In addition, the security be such as improved compared with the LED module in glass cell-shell, wherein said glass cell-shell has the danger of glass breakage or tracheal rupture and the danger that can contact subsequently for the part be energized.
The fluorescent lamp repacking LED module of safe class SKII such as can be used as according to LED of the present invention.
According to a further aspect in the invention, be provided for detecting the aging method of LED.At this, measure and fall the voltage on light-emitting diode assembly, and from measurement result, release the ageing state of LED.For aging and then to the expected remaining life of LED or to reaching service life, measured, ageing-related, and voltage drop is good index.At this, measured voltage and reference value can be compared, and determine from comparative result, whether LED reaches or is about to reach its service life.Automatically can carry out the measurement of voltage drop, compare and assess.Alternatively or additionally, also can measure the light intensity generated when normal feed by LED and compare with reduced value.From voltage drop and/or drop under reduced value from light intensity (very fast) that can identify service life and reach.
Accompanying drawing explanation
Below can illustrate the present invention in detail according to embodiment.Illustrate:
Fig. 1 illustrates the schematic diagram of the embodiment according to LED of the present invention,
Fig. 2 illustrates the schematic diagram of the embodiment according to structure of the present invention of LED,
Fig. 3 illustrates the embodiment with multiple LED printed circuit board (PCB)s,
Fig. 4 illustrates the cross section of embodiment in lamp socket scope according to LED of the present invention,
Fig. 5 illustrates a form of implementation that can be used according to the printed circuit board (PCB) in the embodiment of LED of the present invention, and
Fig. 6 illustrates an embodiment that can be used according to the wiring in LED of the present invention.
Detailed description of the invention
Fig. 1 illustrates an embodiment according to LED of the present invention (LED light lamp) 1, described LED is suitable as the replacing part of conventional fluorescent lamps when not reequiping measure, and can be encased in the contact device or lamp socket or lighting apparatus being originally designed for the routine of the fluorescent lamp holding such as L36W fluorescent lamp.Therefore, LED 1 is repacking LED in this embodiment, such as, be L36W modified type LED.
By by also can being connected between two power supply terminals 2,16 that can be connected on public electric wire net by the series circuit that forms of cross-over connection or the choke coil 3 removed and LED 1 if desired.LED 1 has contact site or lamp socket 4,5,14,15, and described contact site or lamp socket are equivalent to device and the design of the contact site of the fluorescent lamp that will substitute or the traditional of lamp socket.Contact site 4 is connected with choke coil 3, and contact site 14 is connected on electrical network terminal 16.Contact site 4,5 is connected with converter 6, and described converter has the booster converter of band power factor correction (PFC, PowerFactorCorrection) in this embodiment and can generate the output voltage of such as 400V to 500V.Converter 6 mechanically be such as configured to cooling body 7 or be permanently connected in knock-down mode with the supporting body that other forms are formed.Cooling body 7 mechanically supports the printed circuit board (PCB) 9 being preferably configured to LED supporting body, is provided with light emitting diode (LED) 49 on the printed circuit board.Printed circuit board (PCB) 9 to be lain on cooling body 7 and is kept by clip 46 (see Fig. 4).Converter 6 and printed circuit board (PCB) 9 electrical contact are with to light emitting diode 49 feed.The covering 8 of printing opacity is set on printed circuit board (PCB) 9, described covering can be configured to disk, semicylinder or as shown in Fig. 2, be configured to cross section is circular or semicircular cover (see covering 40), and is preferably connected with cooling body 7 on two longitudinal sides.Printed circuit board (PCB) 9 and/or cooling body 7 another end deviating from converter 6 on be provided with housing 12, described housing forms a part for the housing of electric bridge or LED 1 and comprises short circuit line 13, described short circuit line by contact site 14,15 short circuits.
Contact site 5,15 is connected to each other via wire 10, is embedded in described wire by safeties 11.Safeties 11 substitute the starter always arranged in fluorescent lamp, and are designed to, and described safeties can be encased in starter seat.As an alternative, safeties 11 also can be arranged on other positions of printed circuit board (PCB) or LED 1.
Such as 100 to 250 can be had according to the embodiment of Fig. 1, be the light emitting diode of 143 in particular situations, described light emitting diode series connection.Therefore, embodiment is the LED retrofit module of the band power factor correction of replacing part as L36W fluorescent lamp, and the feature of described LED retrofit module is the efficiency improved and long service life.Do not need wiring in this embodiment and simple driver is enough as converter 6.Such as the form with connector system on the side of printed circuit board (PCB) 9 can design connection possibility.Light emitting diode 49 can be attached to such as on the cooling body of cooling body 7 simply by means of printed circuit board (PCB) 9, makes not occur hot spot (HotSpots).
An embodiment of the converter 6 shown in Fig. 1 shown in Figure 2.Feature according to the structure of Fig. 2 is, assembly can grafting and/or locking, and this ensures the most simply to install and security in high textural and electricity.Converter 6 is surrounded by the plastic casing 20 of two-piece type according to Fig. 2, and described plastic casing is made up of housing parts 20a, 20b that two lock mutually, and described two housing parts can be inserted into each other.Housing parts 20a, 20b of being made up of plastics or other electrically non-conductive materials form clearance or creep age distance relative to the part for being energized, and make it possible to contact housing 20 non-dangerously.Housing parts 20a and contact site 4,5 connect securely.
Be provided with converter printed circuit board (PCB) 21 within the casing 20, described converter printed circuit board (PCB) is connected with contact site 4,5 conductively via wire 22.Converter printed circuit board (PCB) 21 is provided with the electric component needed for converter, such as choke coil 23 or be such as configured to the capacitor 24 of electrolytic condenser.Converter printed circuit board (PCB) 21 converts the input voltage carried via contact site or terminal 4,5 to corresponding output voltage, described output voltage below or above input voltage, and can export with the quantity of light emitting diode to be powered as required on the lead-out terminal 25 be arranged on converter printed circuit board (PCB) 21.
Housing 20 can have the circular or cross section of rectangle or the cross section of other applicable accommodation converter printed circuit board (PCB) 21 and electric parts.Housing parts 20b is provided with and the recess 26 extended transverse to converter printed circuit board (PCB) 21, and described recess can hold cooling body 7a and give its mechanical stability.Cooling body 7a directly or with heat conduction can be connected with the cooling body 7 schematically illustrated in fig. 2, makes to realize carrying out effective overall cooling to converter components and light emitting diode 49.Cooling body 7 be arranged in the mode shown in Fig. 1 be equivalent to LED printed circuit board (PCB) 9 LED printed circuit board (PCB) 35 under.In addition, housing parts 20b points to the protuberance 27 on the direction of LED printed circuit board (PCB) 35, to deviate from contact site 4,5 side with convex at it, and described protuberance closes completely except pointing to the opening 28 of LED printed circuit board (PCB) 35 downwards.LED printed circuit board (PCB) 35 can be the LED printed circuit board (PCB) 9 shown in Fig. 1.
Protuberance 27 is used as engagement hook, and the contact spring (spring contacts) being configured to the conduction of metal spring 29 is pressed onto on LED printed circuit board (PCB) 35 by described engagement hook.Metal spring 29 is electrically connected with the lead-out terminal 25 of converter printed circuit board (PCB) 21 and is configured to be bending in the mode illustrated, the protuberance 27 making described metal spring pass convex extends in inside and is pressed to conductively and flexibly on LED printed circuit board (PCB) in the mode of stretching out downwards through opening 28 with the bend of U-shaped.Metal spring 29 is pressed on portion's section (contact surface) 9a of the conduction of LED printed circuit board (PCB) 35 with enough contacts by protuberance 27, wherein protuberance 27 ensures metal spring 29 and surrounding environment electric insulation simultaneously.
Cooling body 7 or as an alternative LED printed circuit board (PCB) 35 can with converter printed circuit board (PCB) 21 via guide 30 such as by locking, accommodation section that is bonding or slip mechanically connects.In favourable design, housing parts 20b has the Access Division 31 of being preferably made up of plastics or other materials, and described Access Division is configured to locking projections portion and can locks onto in the corresponding depressed part 32 of cooling body 7,35.In order to lock, must only by cooling body 7 or as an alternative by LED printed circuit board (PCB) 35 when being moved in guide 30 until Access Division 31 locks onto in cooling body 7 through when the corresponding opening of housing parts 20b.At this, automatically carried out the electrical contact of LED printed circuit board (PCB) 35 by metal spring 29 simultaneously.Because metal spring 29 only stretches out in the scope of opening 28, and pass through protuberance 27 fully electric screen, so obtain the high contact protection for voltage in downside through LED printed circuit board (PCB) 35 and in upside and edge side there.
By means of Access Division 31, cover, namely housing parts 20b can cover in the cooling body 7 (see Fig. 1,4) be connected or in the corresponding depressed part 32 of described cooling body with described in clamping or lock onto, and make not need screw and realize electric insulation completely.
When mounted, automatically LED printed circuit board (PCB) 35 is powered by metal spring 29 simultaneously, make it possible to the welding cancelling metal wire.
In the embodiment shown in Fig. 1,2, housing 20 or converter 6 are fixed via one or more Access Division 32 and remain on cooling body 7.Another housing 12 of carrying lamp socket 14,15 also can be fixed and remain on cooling body 7 via one or more Access Division.Cooling body 7 is formed and firmly connects, and is connected and fixed and stablizes two housings (housing parts) 20,12, namely converter 6 and opposite lamp socket supporting body by described, and then fixes and stablize whole LED lamp module.LED printed circuit board (PCB) 35 does not extend in housing 12,20 in the embodiments described.
The embodiment realizing the multiple LED printed circuit board (PCB) of connection shown in Figure 3.As long as light intensity desirably multiple LED printed circuit board (PCB) should be installed, for machinery or space reason or just also can expect to realize uniform Luminance Distribution: light emitting diode is arranged on two or more printed circuit board (PCB).By welding or can realizing in other manners with the connection of machinery of the electricity of two or more LED printed circuit board (PCB), but preferably performing in the mode of electric plug-in connection according in the embodiment of Fig. 3.For this reason, LED printed circuit board (PCB) 35 has the plug 36 being arranged on edge side, and described plug can join in the corresponding electrical socket 37 on LED printed circuit board (PCB) 38.Therefore, LED printed circuit board (PCB) 35 and 38 can in a straightforward manner by moving together and being electrically connected to each other in a longitudinal direction.Otherwise also socket and plug can be arranged on printed circuit board (PCB) 35, on 38.Two LED printed circuit board (PCB)s can be connected with other printed circuit board (PCB) equally in an identical manner, to provide the association be made up of three or more printed circuit board (PCB).
The cross section running through the embodiment of LED shown in Figure 4, described LED such as can have the structure according to Fig. 1 to 3.According to the LED of Fig. 4, there is substantially circular cross section and comprise: LED printed circuit board (PCB) is such as according to Fig. 2, the LED printed circuit board (PCB) 35 of 3 or the LED printed circuit board (PCB) 9 according to Fig. 1; And substantial transparent ground or the dyeing of printing opacity ground, cross section is semicircular covering 40, described covering is equivalent to the covering 8 shown in Fig. 1 and can joins in the recess 42 being used as accommodation section with locking to be arranged on locking projections portion 41 that is on two sides of covering 40, fixing or preferably flexible hook-type.Recess 42 is formed on cooling body 7, makes to ensure the firmly mechanical connection between cooling body 7 and covering 40.It is semicircular or semiorbicular, good heat conductive, such as metal purchasing ore 44 that cooling body 7 comprises cross section, preferably same good heat conductive, optional nonconducting frame section section 43 is connected with described purchasing ore.Frame section section 43 is connected securely with purchasing ore 44 and supports inwardly outstanding protuberance 42a, and described protuberance limits corresponding recess 42 in-between.Portion section 42a, 43,44 and possible 48 can single type ground, be such as fabricated to continuous casting section bar by aluminium or other metals or good thermal conductive material.
The Fastener 46 be made up of the electrically non-conductive material being preferably plastics joins in recess 42, described Fastener presses LED printed circuit board (PCB) 35 downwards in the mode of spring, and LED printed circuit board (PCB) 35 is pressed in the smooth plate portion section 48 of cooling body 7 at the nonconducting but situation lower plane of the insulation film 47 of good heat conductive of insertion.This ensure LED printed circuit board (PCB) 35 and cooling body section 48 and then and cooling body 7 between good heat conduction.Thus, by LED printed circuit board (PCB) 45 to be such as the heat that produces of the LED of LED49 outside to derive to it effectively via cooling body 7, make the running temperature of LED49 keep low, and ensure high efficiency and long service life thus.Cooling body 7 is preferably exposed to surrounding environment, and heat can be derived to surrounding environment.LED printed circuit board (PCB) 35 such as can have the thickness of 0.8mm, and this ensures effective heat radiation.
Plastic clip 46 can have the structure of elongation transverse to plotting planes, but the Fastener that described plastic clip also can be distributed along its longitudinal direction on LED printed circuit board (PCB) 35 by each is formed.
In addition, bore a hole in the position that Fastener 46 can exist at LED49, make LED pass Fastener 46 give prominence to towards the direction of covering 40 and guarantee towards the direction of covering 40 and through the outside effective light output of described covering.Fastener 46 can also be configured to be reflection on the side that it points to covering 40, thus ensure towards the direction of covering 40 and through the effective light output of described covering, and also keep LED printed circuit board (PCB) 35 to be sightless in addition.
LED printed circuit board (PCB) 35 preferably remains in the space formed between plate shape cooling body section 48 and the downside of protuberance 42a securely and for good and all, and such as can be incorporated into before connecting portion section 43,44 securely in the space under protuberance 42a.
Temperature survey on LED module shows, the heat affecting of insulation film 47 is little, makes to realize effective electric insulation by insulation film 47, and does not damage the heat trnasfer from LED printed circuit board (PCB) 35 to the calorifics of cooling body 43,44,48 significantly.Have and do not have in the design of insulation film 47, temperature difference is such as only 2 DEG C.
Such as can be seen from Fig. 4, being arranged on this and also can not carrying out by means of the ancillary method of instrument, screw etc. of LED module.Covering 40 can be connected in cooling body.LED printed circuit board (PCB) 35 can be incorporated into later under protuberance 42a being clamped in recess 42 by Fastener 46 equally.Therefore, guarantee the installation of simple low cost, and also ensure good electrical contact protection, because the part all for being energized is not come-at-able simultaneously.
In Figure 5 with the embodiment that the board design of printed circuit board (PCB) 35 is shown with the mode of contraction in length of signal, described embodiment provides insulation that is that double or that strengthen.Printed circuit board (PCB) Butut shown in Figure 5 at voltage for providing insulation that is that double or that strengthen by the clearance of at least 6mm and/or creep age distance when 500V.Printed circuit board (PCB) 35 is included in the upper portion's section 50 formed in edge, its underpart (description according in Fig. 5), can be incorporated in cooling body groove by printed circuit board (PCB) 35 by means of described portion section, such as, be the groove formed between shown in Figure 4, in bottom protuberance 42a and the cooling body section 48 of plate shape.
In addition, printed circuit board (PCB) 35 has portion's section 51, described portion section wider than and be configured to that not there is the part for being energized higher than 6mm.As can be seen from Fig. 5, portion's section 51 surrounds printed circuit board (PCB) 35 on the whole ring week of printed circuit board (PCB), that is also on the left of the rigging position shown in the Fig. 5 for electric parts and assembly and right side and above surround printed circuit board (PCB) 35.
Printed circuit board (PCB) 35 is provided with: contact surface 52, for the input voltage terminal of 0V and+500V; Contact surface 53, for resistors in series (Vorwiderstand) R1 of installation example as 100 Ω or other appropriate value; Multiple connection or installed surface 54, for diode installed (LED1, LED2 ...); Multiple installed surface 55 is especially the diode of Zener diode for installing antiparallel with each light emitting diode; Electricity connection wire 56 be connected wire 57, for the installed surface 54,55 according to Fig. 5 right hand external being used for light emitting diode and Zener diode is electrically connected with the contact surface 52 of the input terminal being used for such as+500V.Each rigging position being respectively used to light emitting diode and the Zener diode of connecting is arranged with the spacing of such as 6mm or larger alternatively.The width of printed circuit board (PCB) 35 such as can have 20 to 25mm, such as 22.8mm or other suitable numerical value arbitrarily.For such as the electric parts of resistor, light emitting diode and Zener diode and the rigging position of electronic unit and for input terminal contact surface preferably to be less than 10mm, the width of such as 7.7mm arranged and extends beyond the determined length of quantity of the light emitting diode that will be provided with by each printed circuit board (PCB).Can realize printed circuit board (PCB) that is long and narrow, that extend by described design, described printed circuit board (PCB) has extremely good insulating properties relative to surrounding environment and the parts that contact with described printed circuit board (PCB).
The circuit diagram of the wiring of the printed circuit board (PCB) 35 shown in Fig. 5 shown in Figure 6.Circuit diagram shown in Fig. 6 arrange be used for according to other embodiments of the invention or the LED module of above-mentioned design, described LED module is equipped with such as 50 to 250 at this, is such as 143 light emitting diodes 62, and described light emitting diode is connected with series resistance 61.Light emitting diode 62 is connected in series between input terminal 60a, 60b together with series resistance 61.Because when light emitting diode 62 fault whole series circuit become invalid, optionally, each light emitting diode carrys out cross-over connection by antiparallel Zener diode 63, described Zener diode becomes conducting due to the voltage drop then occurred on a light emitting diode when affiliated light emitting diode 62 fault (high-impedance state), and then invalid light emitting diode 62 is by cross-over connection.Therefore, also to other, effective light emitting diode feed and generate light.Therefore, disabler is only confined to become invalid light emitting diode 62.According in the embodiment of Fig. 6, input terminal 60a, 60b are equivalent to the contact surface 52 according to Fig. 5.Resistor 61 is arranged on the rigging position 53 of Fig. 5, and on the assembling that light emitting diode 62 and Zener diode 63 are arranged on Fig. 5 or contact position 54 or 55.
According to an aspect of the present invention, such as also propose according to above-described embodiment a kind of for detecting the aging method of LED.At this, measure fall on the device of light emitting diode 49 or 62, such as the voltage on input terminal 60a, 60b falls, and from measurement result, release the ageing state of LED.At this, measured voltage and reference value or threshold value can be compared, and from comparative result, release the service life that still can expect or determine whether LED reaches its service life.This automatically can perform by control device, wherein can generate corresponding alarm signal when reaching service life.
All above-described and feature illustrated in the accompanying drawings can combine in an arbitrary manner individually or to be combined mutually, realizes independently embodiment of the present invention thus respectively.Also there is the corresponding method being used for mounted LED lamp within the scope of the invention, wherein all parts can be plugged in together in the mode shown in Fig. 1 to 6 or be installed together when not needing screw.
Claims (17)
1.LED lamp (1), the light-emitting diode assembly (8 that there is converter (6) and be connected with described converter, 49), described light-emitting diode assembly is arranged at least one LED printed circuit board (PCB) (9, 35, 38) on, it is characterized in that, described converter (6) is arranged on to be made up of electrically non-conductive material, fully surround in the housing (20) of described converter (6), described housing (20) is designed for and holds from the outstanding LED printed circuit board (PCB) (35) of described housing (20), and described housing has protuberance, described protuberance will be used for being energized, the spring contacts (29) be connected with described converter (6) is flexibly pressed on described LED printed circuit board (PCB) (35).
2. LED according to claim 1, is characterized in that, described housing (20) is configured to be two-piece type and two housing parts lock mutually.
3. LED according to claim 1 and 2, is characterized in that, described housing (20) is configured with the locking piece for locking with cooling body (7).
4. LED according to claim 3, is characterized in that, described locking piece is formed with the form of lock hook (32).
5. LED according to claim 1 and 2, is characterized in that, is provided with at least two LED printed circuit board (PCB)s (35,38), and described at least two LED printed circuit board (PCB)s (35,38) can be electrically connected to each other.
6. LED according to claim 1 and 2, is characterized in that, is provided with at least two LED printed circuit board (PCB)s (35,38), described at least two LED printed circuit board (PCB)s (35,38) can be electrically connected to each other by means of connector (36,37).
7. LED according to claim 1 and 2, described LED has at least one in following characteristics:
Described converter (6) has booster converter or buck converter,
Described LED is configured to the repacking module of the replacing part as fluorescent lamp,
Be provided with for by two of described LED terminal (5,15) interconnective safeties (11),
Two terminals (14,15) of described LED are interconnected by short-circuit conductors (13).
8. LED according to claim 7, is characterized in that, described safeties (11) are used as the replacing part of the starter of fluorescent lamp.
9. LED according to claim 1 and 2, it is characterized in that, be provided with cooling body (43,44,48), described cooling body has par section (48), wherein said LED printed circuit board (PCB) (9,35,38) be flexibly pressed on described par section (48) of described cooling body.
10. LED according to claim 9, is characterized in that, it is that semicircular outer portion part is for effective heat radiation that described cooling body (43,44,48) has cross section.
11. LED according to claim 9, is characterized in that, between described par section (48) and described LED printed circuit board (PCB) (9,35,38), be provided with insulation film (47).
12. LED according to claim 9, is characterized in that, described LED printed circuit board (PCB) (9,35,38) is flexibly pressed on described par section (48) by the Fastener (46) be made up of electrically non-conductive material.
13. LED according to claim 12, is characterized in that, described LED printed circuit board (PCB) is encased in the groove of described cooling body, and described Fastener (46) remains in the depressed part of described cooling body.
14. LED according to claim 1 and 2, it is characterized in that, electric component and electronic building brick are arranged on LED printed circuit board (PCB) (9,35,38), on, described electric component and electronic building brick is made to have relative to the edge of described LED printed circuit board (PCB) the spacing being greater than 6mm.
15. LED according to claim 1 and 2, is characterized in that, light emitting diode (62) is series connection and Zener diode (63) and each light emitting diode (62) inverse parallel.
16.LED lighting apparatus, described LED illumination device has according to LED described one of in claim 1 to 15.
17. LED illumination device according to claim 16, is characterized in that, described LED illumination device has the safeties (11) of choke coil (3) and/or the alternative starter of connecting with converter (6).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010039012.7A DE102010039012B4 (en) | 2010-08-06 | 2010-08-06 | 2LED lamp |
| DE102010039012.7 | 2010-08-06 | ||
| PCT/EP2011/062763 WO2012016877A2 (en) | 2010-08-06 | 2011-07-25 | Led lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103069216A CN103069216A (en) | 2013-04-24 |
| CN103069216B true CN103069216B (en) | 2016-03-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180038878.9A Active CN103069216B (en) | 2010-08-06 | 2011-07-25 | Led |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN103069216B (en) |
| DE (1) | DE102010039012B4 (en) |
| WO (1) | WO2012016877A2 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM438603U (en) * | 2012-05-24 | 2012-10-01 | Justing Tech Taiwan Pte Ltd | Improved lamp casing structure |
| DE102012210196A1 (en) * | 2012-06-18 | 2013-12-19 | Osram Gmbh | Exchangeable light system, has holder including device for fixing light generator and connected with heat sink or lamp, printed circuit board directly connected with heat sink in area by area, and illuminant arranged on board |
| DE202012104830U1 (en) * | 2012-12-12 | 2014-03-13 | Zumtobel Lighting Gmbh | Housing for receiving electrical or electronic components |
| DE202013100401U1 (en) * | 2013-01-29 | 2013-03-14 | Hella Kgaa Hueck & Co. | Lighting device and mounting arrangement for the lighting device |
| DE102013206728A1 (en) * | 2013-04-15 | 2014-11-06 | Osram Gmbh | lighting system |
| DE102013008067A1 (en) * | 2013-05-10 | 2014-11-13 | Diehl Aerospace Gmbh | lighting device |
| DE102013011822A1 (en) * | 2013-07-15 | 2015-01-15 | Cooper Crouse-Hinds Gmbh | LED module |
| AT515191A1 (en) * | 2013-12-11 | 2015-06-15 | Siemens Ag Oesterreich | lighting system |
| DE102014225486A1 (en) * | 2014-12-10 | 2016-06-16 | Osram Gmbh | Lamp with driver board and socket |
| DE102015120551B4 (en) * | 2015-11-26 | 2017-08-03 | Siteco Beleuchtungstechnik Gmbh | Device and method for determining an aging information of an LED module |
| DE102018109216A1 (en) * | 2018-04-18 | 2019-10-24 | Ledvance Gmbh | LED module, LED bulb and method of making the same |
| CN211641771U (en) * | 2019-12-12 | 2020-10-09 | 法雷奥汽车空调湖北有限公司 | Control box and fan subassembly |
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| US6462475B1 (en) * | 2001-05-31 | 2002-10-08 | Han-Ming Lee | Power saving environment protection bulb |
| CN1536543A (en) * | 2003-04-03 | 2004-10-13 | ��ʽ����ѿܢ | Luminous diode assembly for lighting label |
| CN201318580Y (en) * | 2009-04-15 | 2009-09-30 | 深圳市丰泰晶电子科技有限公司 | LED fluorescent tube |
| GB2465966A (en) * | 2008-11-28 | 2010-06-09 | Excled Ltd | Light emitting diode tube lamp |
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|---|---|---|---|---|
| US7488086B2 (en) * | 2006-04-05 | 2009-02-10 | Leotek Electronics Corporation | Retrofitting of fluorescent tubes with light-emitting diode (LED) modules for various signs and lighting applications |
| TWM382423U (en) * | 2009-12-31 | 2010-06-11 | Green Power Led Corp | Tube-less LED fluorescent lamp |
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2010
- 2010-08-06 DE DE102010039012.7A patent/DE102010039012B4/en active Active
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2011
- 2011-07-25 WO PCT/EP2011/062763 patent/WO2012016877A2/en active Application Filing
- 2011-07-25 CN CN201180038878.9A patent/CN103069216B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6462475B1 (en) * | 2001-05-31 | 2002-10-08 | Han-Ming Lee | Power saving environment protection bulb |
| CN1536543A (en) * | 2003-04-03 | 2004-10-13 | ��ʽ����ѿܢ | Luminous diode assembly for lighting label |
| GB2465966A (en) * | 2008-11-28 | 2010-06-09 | Excled Ltd | Light emitting diode tube lamp |
| CN201318580Y (en) * | 2009-04-15 | 2009-09-30 | 深圳市丰泰晶电子科技有限公司 | LED fluorescent tube |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010039012B4 (en) | 2021-09-23 |
| WO2012016877A3 (en) | 2012-04-05 |
| CN103069216A (en) | 2013-04-24 |
| DE102010039012A1 (en) | 2012-05-10 |
| WO2012016877A2 (en) | 2012-02-09 |
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