CN101592302A - The back loading LED module that is used for motor vehicle rear assembled lamp - Google Patents
The back loading LED module that is used for motor vehicle rear assembled lamp Download PDFInfo
- Publication number
- CN101592302A CN101592302A CNA2009101418574A CN200910141857A CN101592302A CN 101592302 A CN101592302 A CN 101592302A CN A2009101418574 A CNA2009101418574 A CN A2009101418574A CN 200910141857 A CN200910141857 A CN 200910141857A CN 101592302 A CN101592302 A CN 101592302A
- Authority
- CN
- China
- Prior art keywords
- circuit board
- pcb
- printed circuit
- led
- motor vehicle
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
- F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
- F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
- F21S43/14—Light emitting diodes [LED]
-
- 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
-
- 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
- F21K9/68—Details of reflectors forming part of the light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
- F21S45/40—Cooling of lighting devices
- F21S45/47—Passive cooling, e.g. using fins, thermal conductive elements or openings
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The invention discloses a kind of back year formula led module that is used for motor vehicle rear assembled lamp.One or more LED is installed on the printed circuit board (PCB), and printed circuit board (PCB) mechanically remains on LED the focus place of multiaspect parabolic mirror.From the light of LED laterally, flatly disperse, and the mirror collimation that is reflected, the collimated light of reflection on longitudinal direction roughly by rear combination lamp guiding observer.Led module itself roughly is a portrait orientation, can be longitudinally be inserted into the inside of speculum from the hole on the summit of speculum.Printed circuit board (PCB), the heat conduction layer of the optional cooling pad of contiguous printed circuit board (PCB) and contiguous optional cooling pad all is the layer of general planar, and is all roughly parallel to each other, and can all have identical contour shape alternatively.Printed circuit board (PCB), cooling pad and heat conduction layer can together form the grillage of general planar.
Description
The cross reference of related application
The application requires that on May 28th, 2008 submitted to, name to be called the provisional application 61/056 of " SIDE ENTRY LED LIGHT MODULE FORAUTOMOTIVE REAR COMBINATION LAMP " according to the regulation of the 35th piece of the 119th e money of United States code, 738 priority, and all incorporate its content into this paper with way of reference.Thus, clearly keep Paris Convention priority completely.
Technical field
The present invention relates to be used for the rear combination lamp of motor vehicle illuminator.
Background technology
For many years, motor vehicle adopts power lighting to be used for many functions always.For example, only lift some examples of applications, lamp provides the place ahead illumination (headlight, auxiliary lamp), prompting (lamp that stops ahead, rear taillight), and (turn signal, danger, Brake lamp, back-up lamp) and convenience (ceiling light, dial illumination) signal.In the past, incandescent lamp bulb was used for most of or whole lighting apparatus of motor vehicle always, and all size is arranged, shape, and the incandescent lamp bulb of wattage and socket encapsulation is available.
In recent years, light emitting diode (LED) has begun to appear in some illumination application of motor vehicle.Compare than incandescent lamp bulb, the power that LED uses is less, and the life-span is longer, thermal output still less, this makes that they can the fine road vehicle application that is adapted to.
In quite short period since introducing LED is as light source, vehicle manufacturers is taked careful attitude always.Although because above-described all advantages, vehicle manufacturers thirsts for adopting LED, and they are irresolute always to the optics of the bulb/lamp of the band socket abandoning fully being familiar with and subsidiary traditional type thereof.The result has had several illumination subsystems to have the mechanical sense of old-fashioned incandescent lamp bulb and light fixture in recent years, but in fact adopts LED as its light source.
Fig. 1 has shown a kind of typical motor vehicle 1, and it has typical external modulation, comprises anterior side marker light 2, headlight 3, and fog lamp 4, side steering indicating light installed 6, be installed in brake lamp 7, license plate lamp 8 and alleged " rear combination lamp " 9 (RCL) of a center high position.In these lamps any one or all lamps can comprise annex, as headlight cleaning systems 5.For the present invention, we mainly are absorbed in rear combination lamp 9.
Notice that each rear combination lamp 9 can comprise taillight (being also referred to as identification light), brake lamp (being also referred to as Brake lamp), turn signal lamp and back-up lamp.Each lamp in the rear combination lamp can have its oneself light source, its oneself reflection and/or focusing and/or collimation and/or diffuse optical device, and its oneself mechanical cover, its oneself circuit, or the like.In this respect, the aspect of a concrete light or feature can be used for rear combination lamp 9 all lamp or any lamp.Alternatively, these lamps can have one or more function, surpass the circuit of a light source as control, or keep mechanical cover more than a light source or the like.For example, although taillight and brake lamp function can be combined in the single lamp (bulb) with two filaments, each illumination subsystems typically has its oneself individual light.
In recent years, along with LED begins to appear in the vehicle exterior illuminator, a trend is that LED closely is integrated in the light fixture.For example, the brake lamp 7 or the present great majority of CHSML that are installed in the center high level realize that by this way reason is that the repacking led module is relatively easy with application.Because the life-span of LED is long, be a kind of advantageous method so pass this in time.
In other words, in the long term, light fixture (comprising shell, speculum, lens cover and any intermediate optical elements) is applicable to the configuration around the LED optimal design most probably.Be electrically connected, radiator, collimation and/or reflection and/or diffuse optical device mainly adapt to LED most probably and design, rather than mainly adapt to traditional incandescent lamp bulb or incandescent lamp design, are improved to afterwards to comprise led light source.
Yet in the short term, the preferential known technology of being familiar with that adopts of many vehicle manufacturers is included as the incandescent lamp exploitation and has used known speculum and bulb geometrical configuration for many years.As a result, lighting apparatus manufacturer of a few family has developed LED has been used as light source, but uses the rear combination lamp system of the optics of traditional light kit socket mouth and traditional type.With old-fashioned incandescent system the same traditional method is that lamp is come-at-able from a side relative with the observer promptly from the rear portion.These lamp systems attract in a short time the reason of vehicle manufacturers be lamp system mechanical aspects with use the old-fashioned of incandescent lamp bulb, the system that has set up is consistent.An example of this lamp system is the JOULE product, and it can be purchased at the Osram of Massachusetts, United States Dan Fusi Sylvania from general headquarters.
For using led light source but these lamp systems with mechanical sense of old-fashioned incandescent system have had various designs.Every kind of design all has shortcoming, as assembles difficulty, or the low optical efficiency that is caused by loss.
The example of a kind of design in these Known designs people such as Coushaine invention, transfer general headquarters in the Osram of Massachusetts, United States Dan Fusi Sylvania company, disclosed in the United States Patent (USP) 6,991,355 of bulletin on January 31st, 2006.In this design, each LED22 is attached to a side of printed circuit board (PCB) 20, and radiator 25 is attached to the opposite side of printed circuit board (PCB) 20.LED 22, and circuit board 20 and radiator 25 all are positioned in outside the concave mirror 50, and the bottom of near reflection mirror (summit) located.Be directed to the inside of speculum 50 from the light of each LED 22 by photoconductive tube 30 separately, photoconductive tube 30 extends through the hole on speculum 50 summits from LED 22.The exit facet of each photoconductive tube 30 is positioned in the focus place of speculum 50, makes the light of LED 22 emissions enter photoconductive tube 30, at the focus place of speculum 50 emergent light conduit 30, by speculum 50 reflections, sends from lamp with collimated light beam.Wherein a kind of the design used crooked photoconductive tube 30a, and the outgoing plane of photoconductive tube is advanced in suitable direction from the light that photoconductive tube comes out by suitably directed like this, is mapped on the speculum 50 in suitable orientation.The straight photoconductive tube 30 of band intermediate mirrors 26 is used in another kind design wherein, photoconductive tube is exported guide properly to speculum 50.
At United States Patent (USP) 6,991, in 355 the design, photoconductive tube 30 may be a loss source.Typical photoconductive tube is most of be columniform plastic bar or glass rod, and its all surface all is level and smooth, or level and smooth as much as possible for molded assembly.Can partly carry out other polishing process, but this polishing process increases unnecessary expenditures to photoconductive tube, therefore increased the spending of total lamp unit.
The longitudinal surface of photoconductive tube is to inject face, outgoing plane, and the both may introduce loss.For example, if these faces are spreadings not, then because the refractive index difference between bar and the air, each surface has about 4% reflection loss.Can reduce this reflection loss by ARC is coated on the longitudinal surface, but may increase unnecessary expenditures, therefore increase the spending of total lamp unit to photoconductive tube.In addition, on longitudinal surface, exist because the supplementary loss that scattering causes.By guaranteeing that vertical surface relatively smoothly can reduce this scattering loss to a certain extent, but in the reality, these scattering losses are difficult to eliminate.
The athwartship plane of photoconductive tube is spreading not typically, makes can experience total internal reflection from the outer surface reflex time along the light of the internal communication of photoconductive tube at every turn.May there be the scattering loss that causes owing to along the rough surface on the athwartship plane, pollutant or other defective.The same with the scattering loss of longitudinal surface, the scattering loss of horizontal table also is difficult to eliminate.
Therefore,, insert, and the rear combination lamp that can eliminate optical loss and photoconductive tube spending is useful from the lamp rear portion if can provide a kind of employing LED as light source.
Because the application at the motor vehicle illuminator, is useful so at first look back some terms.
The parts of forming the illuminator of vehicle corner are known as " light kit (light set) ".In building, suitable with " light kit " is light fixture.Light kit typically comprises plastic construction or shell, and one or more speculum comprises lens optical system in some cases, is fit to the outside vehicle moulding usually and has the coloured moiety lens cover of (as amber and red) usually.The shell of light kit comprises usually the socket mouth that receives and keep the socket of dress lamp (at the U.S. so-called " bulb ") at the rear portion, ventilation unit and be used for the adjusting device of the place ahead illumination in some cases.
Usually, for LED-based lighting module, four key elements are arranged: led chip or tube core that (1) is actual, (2) radiator or heat management device, it dissipates by the heat that led chip produced, (3) guide observer's optics to drive circuit and (4) reception of led chip power supply into by the light of led chip emission and with it.For each concrete module, these four elements do not need from the beginning to redesign; On the contrary, concrete lighting module can use one or more known element.Following paragraph is described some well known elements, and they can use with LED-based lighting module disclosed herein.
Authorize people such as Madhani, the name that transfers the OsramSylvania company of Massachusetts, United States Dan Fusi is called the United States Patent (USP) 7 of " DRIVER CIRCUIT FOR LED VEHICLELAMP ", 042,165 disclose a kind of known drive device circuit that is used for LED-based lighting module, and its full content is merged in this paper by reference.In this patent, the first car light drive circuit that is used for light emitting diode (LED) array is disclosed, this led array has first row that is composed in series by four LED and second row that is composed in series by four LED.In the STOP pattern of operation, to the capable electric current of two LED by controlling with the capable led driver of connect of LED separately.In the TAIL pattern of operation, electric current only offers the LED of delegation by diode in series and resistor.When the input voltage that reduces, the on-off circuit by a LED short circuit during each LED is capable provides the operation capable to this LED.The second car light drive circuit comprises the first row LED and the second row LED that connects with gauge tap, this gauge tap have be used for keeping constant current regulate with the electric current of controlling every capable LED and, reduce the feedback circuit of switching noise.The drive circuit of this patent disclosure can directly use, and perhaps can easily be improved to drive the led chip that is used for lighting module disclosed herein.
Authorize people such as Coushaine, transfer the OsramSylvania company of Massachusetts, United States Dan Fusi, the United States Patent (USP) 7 that name is called " LED BULB ", 110,656 disclose a kind of complimentary socket of LED-based lighting module and frame for movement of electric connector of being used for, and its full content is merged in this paper as a reference.In this patent, led light source has the shell of band base.Hollow core is outstanding from base, and in the longitudinal axis arranged around.Printed circuit board (PCB) is positioned at an end of hollow core on the base, and it has a plurality of LED that operationally are fixed to printed circuit board (PCB) about its center.In a preferred embodiment of the invention, hollow core is a tubulose, and printed circuit board (PCB) is circular.In a preferred embodiment, the photoconductive tube of band main body is a cup-shaped at Fig. 2 and Fig. 4 a, has specific wall thickness " T ".Photoconductive tube is arranged in hollow core, and having has first end of operative relationship with a plurality of LED and be projected into the second outer end of hollow core.Thickness " T " is used the launch site of the LED of this thickness " T " at least even as big as encirclement.United States Patent (USP) 7,110, the frame for movement of 656 disclosed complimentary socket and electric connector can directly be used, and perhaps can easily be improved to be used for lighting module disclosed herein.
Authorize people such as Coushaine, transfer the OsramSylvania company of Massachusetts, United States Dan Fusi, the United States Patent (USP) 7 that name is called " LIGHT EMITTING DIODE BULBCONNECTOR INCLUDING TENSION RECEIVER ", 075,224 disclose the another kind of complimentary socket that is used for LED-based lighting module and the frame for movement of electric connector, and its full content is merged in this paper as a reference.In this patent, led light source (10) comprises the shell (12) of band base (14), and hollow core (16) is outstanding from base.Hollow core (16) is for conical substantially.Central authorities' heat carriers (17) are positioned in hollow core (16) central authorities, are formed by solid copper.First printed circuit board (PCB) (18) is connected to an end of central heat carrier, and second printed circuit board (PCB) (20) is mounted to second opposite end of central heat carrier (17).Second printed circuit board (PCB) (20) has at least one LED (24) that operationally is fixed to the upper.A plurality of electric conductors (26) have the electric track that forms is gone up in contact at second printed circuit board (PCB) (20) near-end (28) and the far-end (30) that contacts the electric track on first printed circuit board (PCB) (18).In the electric conductor (26) each has and is formed at wherein in assembling process the axially tension decompressor (27) of compression.Cover (32) is assemblied on second printed circuit board (PCB) (20); Radiator (34) is attached to base, with first printed circuit board (PCB) thermo-contact is arranged.With United States Patent (USP) 7,110,656 is the same, and by United States Patent (USP) 7,075, the frame for movement of 224 disclosed complimentary socket and electric connector can directly be used, and perhaps can easily be improved at lighting module disclosed herein.
Authorize people such as Coushaine, transfer the OsramSylvania company of Massachusetts, United States Dan Fusi, the United States Patent (USP) 6 that name is called " REPLACEABLE LED BULB WITHINTERCHANGEABLE LENS OPTIC ", 637,921 disclose a kind of reflective optical device, it can receive the light from LED perpendicular to circuit board emission, and reflects all being roughly parallel on a plurality of directions of circuit board.United States Patent (USP) 6,637,921 disclosed optics can have inverted cone shape, and circular cone point is towards led chip.Circular cone can be continuous, perhaps can alternatively have discontinuous face near cone shape.Reflective optical device can use with single led chip, perhaps uses with a plurality of led chips around being arranged on circular cone point.United States Patent (USP) 6,637,921 disclosed reflective optical devices can use with LED-based lighting module disclosed herein, and can be set in the optical path between led chip and the speculum, with the LED photoconduction to the observer.
Summary of the invention
An embodiment is a kind of motor vehicle rear assembled lamp (10), comprising: shell (21), and it has longitudinal axis; The grillage (31 of general planar, 131), it is in a longitudinal direction near shell (21) and be roughly parallel to the longitudinal axis of shell (21), grillage (31,131) comprise a plurality of layers, this a plurality of layer comprises: the printed circuit board (PCB) (41) that the heat conduction layer (43,143) of thermo-contact is arranged and be roughly parallel to heat conduction layer (43,143) with shell (21); A plurality of light emitting diodes (44,144), it is set on the printed circuit board (PCB) (41), diode (44,144) can power by printed circuit board (PCB) (41), diode (44,144) can produce heat, and the heat that is produced is by heat conduction layer (43,143) can be dissipated by thermal transfer plate (41), diode (44,144) can be luminous, and the light that is sent is propagated away from printed circuit board (PCB) (41); With the concave mirror with focus (13), this concave mirror (13) has the hole at its place, summit, to receive shell (21), grillage (31,131) and light emitting diode (44,144).When being inserted in the hole of concave mirror (13) fully when shell (21), grillage (31,131) and light emitting diode (44,144), light emitting diode (44,144) is positioned in the focus place of concave mirror (13).When shell (21), grillage (31,131) and light emitting diode (44, when 144) being inserted in the hole of concave mirror (13) fully, by a plurality of light emitting diodes (44,144) light that sends is dispersed from printed circuit board (PCB) (41), forming collimated light beam (14), and the longitudinal axis that major part is parallel to shell (21) penetrates from lamp (10) by concave mirror (13) reflection.
Another embodiment is a kind of motor vehicle rear assembled lamp (10), comprising: concave mirror (13), and it is used for receiving the diverging light (12) from a plurality of light emitting diodes (44,144), and is used for reflecting on the light beam exit direction collimated light beam (14); Most of smooth structural member (31,131), it is used for mechanically supporting light emitting diode (44,144), gives light emitting diode (44,144) power supply, and remove heat from light emitting diode (44,144), most of smooth structural member (31,131) comprising: printed circuit board (PCB) (41) and parallel to and adjacent to the heat conduction layer (43,143) of printed circuit board (PCB) (41); And shell (21), it is used for mechanically supporting most of smooth structural member (31,131), and shell (21) has thermo-contact with heat conduction layer (43,143).Most of smooth structural member (31,131) can be used as the hole that replaceable module is inserted through concave mirror (13) on the light beam exit direction.When the smooth structural member of major part (31,131) was inserted in the hole in the concave mirror (13) fully, a plurality of light emitting diodes (44,144) were positioned in the focus place of concave mirror (13).When the smooth structural member of major part (31,131) was inserted in concave mirror (13) mesopore fully, shell (21) major part remained on outside the concave mirror (13).
Description of drawings
Fig. 1 is the schematic diagram of the exemplary external illumination of motor vehicle.
Fig. 2 is the cross sectional representation of the optical path that is simplified in the rear combination lamp, and rear combination lamp has single led and a non-multiaspect (un-faceted) speculum.
Fig. 3 is the cross sectional representation of the optical path that is simplified in the rear combination lamp, and rear combination lamp has a plurality of LED and a non-polygonal mirror.
Fig. 4 is the cross sectional representation of the optical path that is simplified in the rear combination lamp, and rear combination lamp has single led and a multiaspect (faceted) speculum.
Fig. 5 is the assembling schematic diagram of the exemplary mechanical layout of rear combination lamp.
Fig. 6 is the decomposing schematic representation of the exemplary rear combination lamp of Fig. 5.
Fig. 7 is the assembling schematic diagram of exemplary mechanical layout that is used for the led module of rear combination lamp.
Fig. 8 is the decomposing schematic representation of the led module of Fig. 7.
Fig. 9 is the assembling schematic diagram of exemplary mechanical layout that is used for the led module of rear combination lamp.
Figure 10 is the assembling schematic diagram of exemplary mechanical layout that is used for the led module of rear combination lamp.
Figure 11 is the assembling schematic diagram of exemplary mechanical layout that is used for the led module of rear combination lamp.
Figure 12 is the decomposing schematic representation of the exemplary L ED module of Figure 10.
The specific embodiment
Light emitting diode disclosed herein (LED) module can be used for the exterior vehicle illumination.Led module can be installed in the light kit socket from the rear portion with the similar mode of mode that the conventional incandescent bulb uses, and is removable.Led module can also be mounted and be sealed in the speculum shell when not necessarily need replaceable module.Led module can comprise the optical element that is suitable for light is distributed to speculum, and speculum receives the light from led chip (can be a plurality of), and with the guides reflected light observer.Can be more abundant open in this detailed description hereinafter.
For using light emitting diode as the typical case of light source, known rear combination lamp, existing many modes guarantee to export light with suitable direction ejecting device.For example, commercially available name is called the light emitting diode of the first generation system use of " JOULE " with concrete angle installation.The assembling process of first generation system is quite complicated, and the connection between LED and the control circuit board is very difficult.For second generation JOULE system, this mount scheme of light emitting diode is replaced by photoconductive tube and little speculum, and photoconductive tube and little speculum are imaged onto the launch point of LED the focus of the speculum of rear combination lamp.Glass that photoconductive tube is transparent typically or plastic tube have smooth side to guarantee all to experience total internal reflection along the light beam that photoconductive tube transmits in the reflection of each side.Although this photoconductive tube has improvement to first generation product, but still be the additional assemblies in the system, therefore increased system cost, and still had loss, when entering and penetrating the photoconductive tube interface, can lose a part of light.Requirement has other LED to overcome by light pipe and the caused loss of relevant optics.Having attempted using the system of the luminous light emitting diode of side, but be not the assembling difficulty, is exactly that optical efficiency is low.
In a word, the rear combination lamp before all shows certain deficiency, is not the assembling difficulty, and optical efficiency is low, is exactly incompatible with the shell of existing rear combination lamp.
The present invention has overcome these defectives, and following one or more advantage can be provided:
At first, light-emitting diode (LED) module is fully-integrated, has therefore reduced component count, has simplified the assembling of module.And, because light emitting diode and electronic component are on identical plate, so there is no need additional interconnection between them.
Secondly, light-emitting diode (LED) module is back compatible, has compatible or be applicable to optics, the mechanical features of existing rear combination lamp shell at an easy rate with existing rear combination lamp shell.In this case, socket can be used as radiator.Other if desired radiator, then hot latch (pin) or fin (fin) can be increased in the rear portion of printed circuit board (PCB).
Moreover the loss of led module can reduce, and has therefore increased module brightness and/or has reduced the required electric weight of operational module.Do not need light pipe or any additional optics.
In ensuing ten paragraphs, disclosure is carried out brief overview, describe the optical path in the rear combination lamp afterwards in detail, describe the mechanical aspects in the rear combination lamp more afterwards in detail.
A kind of back year formula (rear-loading) led module that is used for rear combination lamp disclosed.One or more LED is installed on the printed circuit board (PCB), and printed circuit board (PCB) mechanically remains on LED the focus place of multiaspect (faceted) parabolic mirror.The light of the LED emission mirror collimation that is reflected, the collimated light of reflection on longitudinal direction roughly by rear combination lamp guiding observer.
Led module itself roughly is a portrait orientation, can be longitudinally be inserted into the inside of speculum from the hole on the summit of speculum.Printed circuit board (PCB), the heat conduction layer of the optional cooling pad of contiguous printed circuit board (PCB) and contiguous optional cooling pad all is the layer of general planar, and is all roughly parallel to each other, and can all have identical device encapsulation alternatively.Printed circuit board (PCB), cooling pad and heat conduction layer can form the grillage of general planar together.
In some applications, smooth grillage can be by orientation generally perpendicularly in a longitudinal direction.Being installed in LED on the printed circuit board (PCB) can be approximately perpendicular to grillage and send light.Diverging light from LED can laterally be propagated towards the leftmost side and/or the rightmost side of lamp.Speculum is operated from axle, and with crooked 90 degree substantially of optical axial, makes reverberation longitudinally propagate towards the leading edge of lamp.
In other was used, smooth grillage can be by approximate horizontal ground orientation in a longitudinal direction.Being installed in LED on the printed circuit board (PCB) can be approximately perpendicular to grillage and send light.Diverging light from LED can vertically be propagated towards the top edge and/or the feather edge of lamp.In these were used, lamp can comprise one or more intermediate mirrors, and they turn to the light from the vertical transmission of LED.Propagate towards collimating mirror from wide the causing flatly of one or more intermediate mirrors reflection.Collimating mirror is operated from axle, and makes crooked 90 degree substantially of optical axial, makes reverberation longitudinally propagate towards the leading edge of lamp.
Circuit board can comprise that one or more connects pin, and they roughly extend in circuit board from the end parts parallel of circuit board, and provide power supply and/or to from and/or the monitoring of the signal of whereabouts circuit board.Connect pin and can comprise the plastic connector that is attached to pin.
Penetrate only dispersing of LED, have with LED from special angle pattern as feature.Each LED emitted light beams is parallel to ground usually and penetrates vehicle center.Light fixture comprises arc-shaped reflecting mirror, and it collimates the light from LED, and is roughly parallel to the collimated light of ground return from vehicle rear.
The shape of speculum can be a half paraboloid, and LED is positioned near paraboloidal focus place or the focus.If two or more LED are arranged, then can be by collimation of the speculum in the light fixture and reflection from the light of each LED, but because LED has the lateral separation of being separated by the focal length of parabolic mirror, so may occur with different slightly angles from the light of two LED.Usually, the emission mode of light fixture should meet concrete regulation, and it can be defined in the angle that occurs light on two dimensions and distribute.
Speculum in the light fixture can have facet (facet), and the light that sends from light fixture can satisfy concrete predefined angle requirement like this.This versatility of speculum is known, will describe in detail more hereinafter.
Carry out emulation, set up prototype, obtain the measured value of power (perhaps flux is a unit with the lumen) and find consistent with emulation.
In certain embodiments, module and/or female component can be used as radiator.One of them or both can be made of aluminum, perhaps made so that heat is removed from light fixture by other heat conducting material that is fit to.
The disclosure is carried out brief overview, the optical path in the rear combination lamp has been discussed below, gone through the mechanical embodiment of optical module afterwards more.
Fig. 2 is the cross sectional representation of the optical path that is simplified in the rear combination lamp 10.Led module 11A is laterally towards the side-emitted divergent beams 12 of rear combination lamp 10.Divergent beams have along the peak brightness of specific direction (this paper is expressed as optical axial 17).
In this optical path that is simplified, have only single led at Fig. 2 among the led module 11A.In the practice, can have in this module more than a LED; After the system that is simplified in Fig. 2 is discussed, can clearly treat this situation.
For the old-fashioned speculum that uses incandescent lamp bulb, bulb typically is placed on the focus place of parabolic mirror symmetrically with the speculum rear portion.Speculum is typically around bulb, and opening is towards the front of light fixture.Because to all directions (except towards socket), so be useful with an azimuth ring around bulb, as much as possible like this being directed to from parabolic mirror by radiant light sent collimated light beam to incandescent lamp bulb with light radiation.
By contrast, for LED as for the parabolic mirror of its light source, do not need to use the azimuthal complete parabola of complete 360 degree to catch all light from radiation of light source.Because compare with incandescent lamp bulb, the LED radiation becomes relatively little solid angle circular cone, so only need use the parabolic light beam that just is enough to catch whole spaces range at speculum place of a part.As a result, speculum 13A can be a paraboloidal part, as half parabola, and perhaps other suitable parabolic part.Attention can be imagined parabola half by dividing whole parabola equally with the plane that extends through its summit and its focus.Optically, so a part of parabola is enough to be used for catching the diverging light from light source, and all lacks than complete parabolic volume and the material that uses.
In Fig. 2, can consider optical axial in the bending of speculum place, like this for collimated light beam, optical axial 18 can major part longitudinally be positioned towards the front of rear combination lamp 10.In some applications, optical axial 17,18 can be at speculum place bending 90 degree.In other was used, optical axial 17,18 can crookedly must be a bit larger tham 90 degree, or was slightly smaller than 90 degree.For all these situations, we are called the lateral orientation with " bigger " with divergent beams 12, collimated light beam 14 are called the vertical orientation with " bigger ".
Collimated light beam 14 can be known as " parallel luminous flux " in the literature usually.These terms are interchangeable, can think when using in this application to be equal to.
After by " transparency cover (clear cover) " or transparent " lens cover " 15, collimated light beam 14 keeps collimation 16, and penetrates rear combination lamp 10 at motor vehicle rear, towards the observer.Transparency cover 15 can have optional spectral effects, as one or more wavelength or the wave band of filtration from transmitted light, but typically can the such scattered beam of astigmatism beam.
Led module 11A, speculum 13A and transparency cover 15 can mechanically be kept by shell 20.The reason that needs such shell 20 is that it is made cheaply, can be molded or impress to comprise the surface profile of speculum 13.
The mechanical aspects of rear combination lamp 10 can discuss in more detail after describing optical path hereinafter.
The rear combination lamp that is simplified 10 of Fig. 2 may need some improvement, could satisfy the requirement of rear combination lamp regulation; Recalling that these require all is the incandescent lamp definition, new LED-based lamp can be designed to output " as " output of incandescent lamp type light fixture, with requirement before satisfying.
For example, rear combination lamp may require can reach or more many optical output power easily than single led.The many LED of this class are schematically illustrated among Fig. 3 in simplified form.
Compare with the rear combination lamp 10 of Fig. 2, unique different element is many led modules 11B, and this module 11B comprises three LED.In this rough schematic view, LED is typically making with roughly the same direction, sends light within assembling and/or the snapping tolerance.In other was used, one or more LED can point to different directions.
Tracked in rear combination lamp 10 from the light of each in three led light sources on many led modules 11B, there are three groups of dotted lines to represent light beam like this.The effect that has the light source that separates on a plurality of spaces in this type systematic is to have some rays that little angular variation is arranged in the light beam 16 that departs from optical axial 18.These angular variation are typically little, and as the several years are approximately only arranged, output beam 16 still is considered to collimate.
From optical angle, need LED is together as close as possible.Yet, from the heating angle, LED need be separated as far as possible, the heat that is produced by each LED can be dissipated effectively like this.In fact, LED can be separated to reach several millimeters or bigger on printed circuit board (PCB).The heating aspect of rear combination lamp 10 can be discussed after describing optical path more comprehensively.
The rear combination lamp that is simplified 10 of Fig. 3 can have sufficient output optical power satisfying suitable regulation requirement, but may not have suitable angle to distribute in output beam 16.In other words, output beam 16 is may directionality too strong, if make observer's sight line outside narrow relatively output beam 16, then lamp may look bright inadequately.
This can more be expressly understood by the variation of requirement of inspecting lamp output angle and incandescent lamp bulb output.The light that old-fashioned speculum light fixture sends comprises two overlapping parts: light that directly advance by transparency cover from bulb (1) and the light from bulb of (2) parabolic mirror reflects.Partly disperse (1), and part (2) roughly collimates.These two parts have angular dependence away from the combination on the space of motor vehicle, and intensity can be bigger when observer's sight line is within from the light beam of the collimation of part (2).Yet this angular dependence can be suppressed by the weak relatively angular dependence of part (1).The result, the typical cutoff of typical case ditch output changes to approximately+/-10 degree in vertical direction, change to approximately+/-20 degree in a lateral direction, if like this observer's sight line angle by " within " then only enough visible from lamp, if but certainly as seen observer's sight line then differs surely outside angle is ended.
As a result, may be too narrow and can not satisfy approximately+/-10 degree of vertical direction from the output beam 16 of the rear combination lamp that is simplified 10 of Fig. 3, approximately+/-20 angle requirements of degree of horizontal direction, reason be angular range may be at the most+/-several years.Be expanded light beam on angle, and it is shown in Figure 4 significantly not change the well known elements of its collimation, this well known elements is known as " multiaspect (faceted) " speculum.
Compare with the schematic diagram of the rear combination lamp 10 that is simplified among Fig. 2, the unique difference among Fig. 4 is to replace simple parabolic mirror 13A with multiaspect parabolic mirror 13B.Usually, polygonal mirror is known in the industry, discloses in 1972 or more early patent documentation.Three kinds of known polygonal mirrors are summarized as follows.Will be appreciated that except three examples of following summary, can use any suitable polygonal mirror design.For the exemplary plot among Fig. 4, each facet 19A, 19B, 19C, 19D and 19E basically with photoconduction to identical predetermined angular range, whole lamp outputs have and the essentially identical angular range of each facet.In alternate embodiments, each facet can be with photoconduction to its oneself independent predetermined angular range, and whole lamp output comprises institute's multiaspect angle contribution.
One of polygonal mirror design relatively early is called the United States Patent (USP) 3 of " FACETED REFLECTOR FOR LIGHTINGUNIT " in people's such as Donohue the name of 24 bulletins October in 1972,700, open in 883, its full content is merged in this paper by reference.Donohue discloses a kind of regulation that is used to make speculum, comprises quantity, size, curvature and orientation that each facet is set to produce the unwrung reflected image of light source, and the accumulation effect of each facet is created in the required illumination profile within the prescribed limits.Because real parabolic periphery was difficult in 1972 make,, Donohue allow to use the circular cylinder surface to replace so comprising mathematical approach.
The design of another polygonal mirror be on November 3rd, 1987 bulletin the name of Kosmatka be called in the United States Patent (USP) 4,704,661 of " FACETED REFLECTOR FOR HEADLAMPS " disclosedly, its full content is merged in this paper as a reference.Compare with the patent on the use straight cylinder surface of early Donohue, the patent of Kosmatka is used straight parabolic periphery and simple rotation parabolic surface.
The design of the 3rd known polygonal mirror be April 11 nineteen ninety-five bulletin the name of Saito be called in the United States Patent (USP) 5,406,464 of " REFLECTOR FOR VEHICULAR HEADLAMP " disclosedly, its full content is merged in this paper as a reference.Saito discloses a kind of speculum with several echo areas, and each echo area comprises several segments.Each section has substantially and is the surface of arc (hyperbolic paraboloid, the oval parabola or the paraboloid of revolution), and is disposed on the paraboloid of revolution reference surface with local different focal length.
As using in the rear combination lamp 10 of Fig. 4, polygonal mirror 13B receives the divergent beams 12 from led module 11A, collimated light beam and segment beam is turned to will collimate, the angled beam direction transparency cover 15 that turns to, by lid light from lamp 10 ejaculations.
Before the mechanical encapsulation of lamp was discussed, we summed up the optical path in the lamp 10 of Fig. 4 earlier.Led module 11B is placed near the focus place of multiaspect parabolic mirror 13B or its.Led module 11B is oriented major part and guides its diverging light output at horizontal direction.Divergent beams 12 from led module 11B are mapped to multiaspect parabolic mirror 13B, and optical axial 17 has the incidence angle of about 45 degree like this, and the optical axial 18 of reflection penetrates speculum with the angle of emergence of about 45 degree.Beam incident optical axis 17 major parts are levels and horizontal, and the optical axial 18 big portions of reflection are longitudinally.Parabolic mirror 13B collimated light beam, and reflection collimated light beam, each facet produce concrete angle distribution for the collimated light beam 14 of reflection.The collimated light beam 14 of reflection becomes the outgoing beam of propagating towards the observer 16 by transparency cover 15.
Optical path is summed up, the mechanical encapsulation of rear combination lamp 10 is discussed now, it remains on the appropriate location with optical module, and power supply is sent to LED, and the heat that dissipates and produced by LED.
Fig. 5 and Fig. 6 are the assembling and the decomposing schematic representations of the exemplary mechanical layout of rear combination lamp 10.
Led module 11C longitudinally is inserted into from the lamp rear portion in the mode similar to traditional incandescent lamp mode.Light from LED laterally sends from led module 11C, flatly also common board holder surface perpendicular to printed circuit board (PCB).The inner surface 13 of shell 20 is multiaspect concave mirrors, its collimated light, and with light again longitudinally guiding penetrate from lamp by transparency cover (in Fig. 5 and Fig. 6 not show).Facet 19 on the speculum is the collimated light of knuckle section reflection angularly, to satisfy the predetermined angular requirement of the light that lamp is sent.
Led module 11C comprises radiator 21A and from the vertical grillage 31 of outstanding general planar of radiator 21A.Radiator 21A can be all or part of by heat conducting material, makes as aluminium.Radiator 21A can comprise the heat dissipation characteristics part alternatively, as fin 24.
Printed circuit board (PCB) 41 is as the mechanical pedestal of one or more LED.In the example of Fig. 5 and Fig. 6, three LED 44A are arranged, 44B and 44C are installed on the surface of printed circuit board (PCB), can use more than three LED or are less than three LED but should understand.Each LED sends perpendicular to printed circuit board (PCB) 41 planes, therefore also perpendicular to the diverging light on the plane of grillage 31, in other is used, LED can install along one or more grillage of printed circuit board (PCB), can be roughly parallel to printed circuit board (PCB) 41 and grillage and send diverging light from the grillage of printed circuit board (PCB), these are applied in and hereinafter show and be described in more detail.
Printed circuit board (PCB) 41 is also to LED 44A, and 44B and 44C provide power supply.Power supply can be sent to printed circuit board (PCB) 41 by the hole the radiator 23 via the connector (not shown) from the electric system of motor vehicle.Alternatively, printed circuit board (PCB) 41 can provide the monitoring to LED electric current, temperature or other any appropriate amount.
Led module 11C comprises radiator 21A and grillage 31, and led module 11C can vertically be inserted in the shell 20.Shell 20 has concave mirror along an one inner surface 13.Speculum has the hole at its place, summit, and led module 11C can be inserted into by this hole.Speculum also has focus, makes when led module 11C is fully inserted in the shell 20, and LED44A, 44B and 44C are positioned in the focus place.LED is moved apart focus can cause not collimating, so wish LED is positioned at the focus of as close as possible speculum usually from the light that lamp penetrates.
Lamp can comprise one or more retaining ring, packing ring or sealing ring 51 and 52.Lamp can also comprise right-angled bend adapter 53.Ring can protectiveness ground potted circuit and LED make them not be subjected to the influence of each element, and can provide alternatively at interval and/or locate special part, these features can help to guarantee that LED is appropriately located when led module 11C is fully inserted into.In some applications, led module 11C can only be that part is inserted, and is fixed to shell then.
Notice that grillage 31 big portions are in shell 20 when led module 11C is fully inserted in the shell, in the inside of concave mirror, the big portion of radiator 21A is outside shell 20.Should understand a fraction of grillage 31 and may extend into outside the shell 20, as be used for connecting heat or mechanical stability purpose.Equally, for similar purpose, sub-fraction radiator 21A can extend in shell 20.
Should also be noted that this concrete led module 11C is attached to shell 20, makes printed circuit board (PCB) 41 major parts be vertically located in typical manufacturing, assembling and the snapping tolerance scope.Right-angled bend feature on socket and the speculum can guarantee that LED aligns with speculum.On this orientation, from LED 44A, the light of 44B and 44C is sent by level, directly propagates into parabolic mirror without any intermediate optical assembly.
Although shown three LED among Fig. 5, can use the LED of any right quantity, comprise one, two, three, four, five, eight, or any other appropriate value.Usually, LED is to optimize trading off between optical property and the optimization heat dissipation to determine in the layout on the circuit board, optimizes optical property and tends to assemble LED as close as possible, optimizes heat dissipation and tends to disperse LED far away as far as possible.
The shape of printed circuit board (PCB) 41 or " contour shape " can be selected arbitrarily.In the exemplary design of Fig. 5 and Fig. 6, contour shape is a rectangle.In some applications, circular printed circuit board may be easily for being installed in other assembly with common cylindrical geometry shape.Alternately, printed circuit board (PCB) can be square or rectangle on profile; Rectangular profile shape has and helps in manufacture process to reduce any waste of causing of circuit board material.Usually, for printed circuit board (PCB) 41, can use any suitable shape.
The electrical connection of introducing/draw printed circuit board (PCB) forms by one or more electric connector.Connector is convenient to the connector of quick joint or separate circuit boards such as those.Connector can be known connector, as in following two documents, discussing: authorize people's such as Coushaine, the name that transfers the Osram Sylvania company of Massachusetts, United States Dan Fusi is called the United States Patent (USP) 7 of " LEDBULB ", 110,656 disclose a kind of complimentary socket and electric connector frame for movement that is used for LED-based lighting module, and its full content is merged in this paper by reference.Authorize the United States Patent (USP) 7 that the OsramSylvania company people, that transfer Massachusetts, United States Dan Fusi such as Coushaine, name are called " LIGHT EMITTING DIODE BULBCONNECTOR INCLUDING TENSION RECEIVER ", 075,224 disclose the another kind of complimentary socket that is used for LED-based lighting module and the frame for movement of electric connector, and its full content is merged in this paper as a reference.Alternately, can use any suitable connector.
Fig. 7 and Fig. 8 are the assembling and the decomposing schematic representations of another exemplary mechanical layout of rear combination lamp.Led module 11D and the led module of hereinafter next discussing can use with suitable shell and concave mirror.
Compare with the led module 11C of Fig. 5 and Fig. 6, the most significant difference of led module 11D is that contiguous each LED 44A and 44B have two intermediate mirrors 45A and 45B that are installed on the printed circuit board (PCB) 41.
Intermediate mirrors 45A and 45B receive the part in the light that is sent by each LED 44A and 45B, make roughly 90 degree of bendingof light, again with photoconduction to parabolic mirror, parabolic mirror is collected a part of light, and it is vertically derived lamp.Because intermediate mirrors has been introduced another reflection to optical path, to make grillage be level to the full extent so led module 11D can be mounted to.The wide part of being sent by LED is vertical, after middle mirror reflects towards a left side/or the right side major part be level, horizontal.In some cases, can replace half-parabola reflector to come collimated light with full parabolic mirror; Collimation back wide part after the collimation parabolic mirror reflects is longitudinally.
All or any one intermediate mirrors 45A and 45B can be flat, are crooked on one or two dimension perhaps.For example, for exemplary speculum 45A shown in Fig. 7 and Fig. 8 and the middle body of 45B, having sweep to be parallel to motor vehicle rear in the cross section, is longitudinally but there is not sweep in the cross section.
For flat intermediate mirrors, optical path can be crooked, so that the optical focus of parabolic mirror is deferred to this crooked route, rather than keeps identical physical orientation in the space.Like this, the LED that is positioned in the crooked focus of this optics place can be regarded as being positioned in the focus place of speculum.
For the arc intermediate mirrors, when the shape of design parabolic mirror, selectively consider the curvature of intermediate mirrors.Equally, the actual shape of parabolic mirror can have deviation with parabola a little, make send light beam can be collimated veritably.This is a known features for optical design, uses for many years in the field such as the multi-mirror telescope design.For single-lens telescope, parabolic object lens work is abundant.For multi-mirror telescope, wherein non-object lens have some curvature, and the curvature of object lens or surface profile can be conditioned to adapt to the curvature of non-object lens in the design phase.Equally, the speculum in the rear combination lamp can be known as " parabola ", and it has parabolic cross section, or parabolic, even its true shape can be modified to adapt to any curvature in the intermediate mirrors in the design phase.
Fig. 8 has shown the hierarchy of the grillage 31 of general planar.Printed circuit board (PCB) 41 comprises two LED 44A and 44B, and the intermediate mirrors 45A and the 45B that are used for LED 44A and 44B.Contiguous and what be parallel to printed circuit board (PCB) is optional cooling pad 42.Cooling pad helps to guarantee LED 44A, the good thermo-contact between 44B and the heat conduction layer 43, and the heat conduction layer vicinity also is parallel to cooling pad 42.Alternately, cooling pad 42 can be left in the basket, and heat conduction layer 43 is contact print circuit board 41 directly.As another kind of alternative, between printed circuit board (PCB) 41 and heat conduction layer 43, can place heat radiation putty or other suitable heat conductor.As another kind of alternative, printed circuit board (PCB) 41 itself can be made as the circuit trace of printing on metal-core printed circuit board or the aluminium sheet/radiator by heat conducting material, and extremely thin electric insulation layer is wherein arranged between track and aluminium sheet.
Printed circuit board (PCB) 41 can also have the connector 46 that extends from the edge longitudinal of printed circuit board (PCB) 41.This connector 46 can comprise that one or more extends to the pin of radiator or shell 21B from printed circuit board (PCB), arrives the matching connector (not shown) of the electric system that is attached to motor vehicle alternatively by the hole among radiator or the shell 21B.Equally, the pin of connector can be said to be " antiparallel (anti-parallel) " in the longitudinal direction of lamp, reason is that their vertical outlying observation persons extend, rather than extends towards the observer.
These three layers that form grillage 31 can be attached to by any way together, comprise engaging, adhesive, screw or other any proper method.
In some applications, heat conduction layer 43 can be made separately with radiator 21B, is attached to radiator then.Use for these, heat conduction layer 43 can be made by identical heat conducting material with radiator, as aluminium, perhaps can alternately be made by different heat conducting materials.The potential advantages of making these two assemblies separately are that assembling grillage 31 can be simplified, and reason is that the grillage layer can be more easily approaching.
In other was used, heat conduction layer 43 can be the integral part of radiator 21B, and the two can be used as single parts manufacturing.The potential advantages of making these two parts together are to compare with two assemblies of independent manufacturing, and this combination may be more sturdy and durable.
Shell or radiator 21B can have the structure that is suitable for electric connector or mechanical pedestal.For example, can be used for supporting the one or both ends of electric connector away from the rectangle adapter 25B on grillage 31 1 ends at radiator 21B.Rectangle adapter 25B can also comprise the vertical hole by radiator, enters into connector 46 so that be electrically connected by radiator.
The seal washer 54 that when led module 11D is installed in the shell element is sealed can also be arranged.
For the design shown in Fig. 5 and Fig. 6, each LED 44 is installed on the printed circuit board (PCB) 41 typically away from the periphery of printed circuit board (PCB) 41, and the light that LED 44 sends is basically perpendicular to printed circuit board (PCB) 41.Need make the parallel light that sends when printed circuit board (PCB) 41 is propagated, certain distance can be arranged.A kind of selection is that contiguous each LED 44 installs speculum 45, to guide the light that is sent again, as shown in Fig. 7 and Fig. 8.Another is selected as shown in Figure 9.
Fig. 9 is the assembling schematic diagram of exemplary mechanical layout that is used for the led module of rear combination lamp.In this led module 11E, four LED 144A, 144B, 144C, 144D can be that the luminous and/or edge of side is installed near the periphery or periphery of printed circuit board (PCB), and the output of their diverging light is roughly parallel to circuit board and grillage 31 is propagated away from grillage 31 like this.For the geometry of Fig. 9, light is exported laterally, is flatly propagated towards the left side and/or the right side of motor vehicle.This led module 11E can with full parabolic mirror, but not half-parabola reflector is used together.
The hierarchy of grillage 31 can be improved to receiving edges mounted LEDs 144.This improved geometry is similar to by heat conduction layer and forms pan, and printed circuit board (PCB) is positioned at the recessed inside of pan, and LED is positioned on the raised lip of pan.For the purpose of this document, this improved " pan " structure can be considered to be enough to described by hierarchy disclosed herein.And to can be said to be identical to the contour shape of each layer in " pan " structure.
Radiator 21C is similar with rectangle adapter 25C design, as above-mentioned radiator and adapter.
For the design shown in Fig. 5-9, the heat conductor that printed circuit board (PCB) 41 is normally poor.For the heat that dissipates and produced by LED 44, grillage 31 has used heat conduction layer, and this heat conduction layer is parallel to printed circuit board (PCB) 41 and thermo-contact is arranged with it.The selection of another burn-off is shown in Figure 10.
Figure 10 is the schematic diagram of assembled view of exemplary mechanical layout that is used for the led module 11F of rear combination lamp.This concrete led module 11F uses metal-core printed circuit board 141.Metal-core printed circuit board 141 itself is a conduction heat, and its use has been eliminated and used the other heat conduction layer or the needs of cooling pad.Say from machinery, owing to reduced the component count on the grillage, so this is a kind of desired design.Yet metal-core printed circuit board may be expensive, may not handle the more heat that produces in some applications effectively, and possible cost can surpass the assembling cost of nonmetallic core printed circuit board (PCB), cooling pad and heat conduction layer.
Three LED 44A, 44B, 44C, connector 46, radiator 21D and adapter 25D are similar to above-mentioned like on function.
For the design shown in Fig. 5-10, grillage 31 is normally smooth, the general plane of having only LED 44 and optional speculum 45 obviously to stretch out grillage 31.The alternative design of grillage 131 is shown in Figure 11 and Figure 12.
Particularly, the grillage 131 of led module 11G comprises heat conduction layer 143, and it has oneself heat sink features part 147 in a side relative with printed circuit board (PCB), as fin.For the purpose of this document, the heat sink features part 147 on heat conduction layer 143 can be thought smooth, and can think the part of the common smooth hierarchy of grillage 131.
In addition, heat conduction layer 143 can comprise optional antelabium, and it extends around the periphery of cooling pad 42 and printed circuit board (PCB) 41.This antelabium can form disk-like structure, makes cooling pad 42 and printed circuit board (PCB) can be positioned at " pan " of heat conduction layer 143.For the purpose of this document, heat conduction layer 143 parallel and contiguous another layers are being described, the antelabium of heat conduction layer 143 can be left in the basket when having identical contour shape with another layer.
Notice that grillage 31 and 131 sometimes is described to rectangle in this article, perhaps have rectangular profile shape.Although when forming the grillage assembly, may need rectangular geometry to reduce the quantity of material that is wasted, should notice that other geometry can be suitable for equally.For example, contour shape can be round, or oval, maybe can comprise notch, zigzag fashion and feature, perhaps other is irregularly shaped.And the contour shape of one deck contour shape not necessarily complete and another layer mates.For example, printed circuit board (PCB) portion within it can have notch or hole, and cooling pad can not have these notches or hole.
As description of the invention provided herein and application thereof is exemplary, is not intended to limit the scope of the invention.Can carry out modification and improvement to embodiment disclosed herein, those skilled in the art will understand the practical alternatives and the equivalent of each element of each embodiment after the study patent document.Under the situation that does not depart from scope and spirit of the present invention, can carry out such or such modification and improvement to embodiment disclosed herein.
Claims (17)
1. a motor vehicle rear assembled lamp (10) is characterized in that comprising:
Shell (21), it has longitudinal axis;
The grillage of general planar (31,131), the described longitudinal axis of its contiguous in a longitudinal direction described shell (21) and almost parallel and described shell (21), described grillage (31,131) comprises a plurality of layers, described a plurality of layers comprise:
With described shell (21) heat conduction layer (43,143) of thermo-contact is arranged; With
Be roughly parallel to the printed circuit board (PCB) (41) of described heat conduction layer (43,143);
A plurality of light emitting diodes (44,144), it is set on the described printed circuit board (PCB) (41), described diode (44,144) can power by described printed circuit board (PCB) (41), described diode (44,144) can produce heat, and the heat that is produced is by described heat conduction layer (43,143) dissipate, described diode (44,144) can be luminous, and the light that is sent is propagated away from described printed circuit board (PCB) (41); With
Concave mirror (13) with focus, this concave mirror (13) has the hole at its place, summit, to receive described shell (21), described grillage (31,131) and described light emitting diode (44,144);
Wherein when described shell (21), described grillage (31,131) and described light emitting diode (44, when 144) being inserted in the hole of described concave mirror (13) fully, described light emitting diode (44,144) is positioned in the focus place of described concave mirror (13); With
Wherein when described shell (21), described grillage (31,131) and described light emitting diode (44, when 144) being inserted in the hole of described concave mirror (13) fully, by described a plurality of light emitting diodes (44,144) light that sends is dispersed from described printed circuit board (PCB) (41), forming collimated light beam (14), and the described longitudinal axis that major part is parallel to described shell (21) penetrates from described lamp (10) by described concave mirror (13) reflection.
2. motor vehicle rear assembled lamp according to claim 1 (10), it is characterized in that, described a plurality of layer further comprises and is set at described heat conduction layer (43,143) and the cooling pad (42) between the described printed circuit board (PCB) (41), it is used to guarantee the thermo-contact between described heat conduction layer (43,143) and the described printed circuit board (PCB) (41).
3. motor vehicle rear assembled lamp according to claim 1 (10) is characterized in that, propagates based on the plane perpendicular to described printed circuit board (PCB) (41) away from the light that described printed circuit board (PCB) (41) is propagated.
4. motor vehicle rear assembled lamp according to claim 1 (10) is characterized in that, propagates based on the plane that is parallel to described printed circuit board (PCB) (41) away from the light that described printed circuit board (PCB) (41) is propagated.
5. motor vehicle rear assembled lamp according to claim 1 (10) is characterized in that, described concave mirror (13) is paraboloidal incomplete part.
6. motor vehicle rear assembled lamp according to claim 1 (10) is characterized in that further being included in transparency cover (15) on the exit facet of described lamp (10) to be used to transmit described collimated light beam (14).
7. a motor vehicle rear assembled lamp (10) is characterized in that comprising:
Concave mirror (13), it is used for receiving the diverging light (12) from a plurality of light emitting diodes (44,144), and is used for reflecting on the light beam exit direction collimated light beam (14);
Most of smooth structural member (31,131), it is used for mechanically supporting described light emitting diode (44,144), give described light emitting diode (44,144) power supply, and remove from described light emitting diode (44,144) heat, the smooth structural member (31,131) of described major part comprising:
Printed circuit board (PCB) (41); With
Heat conduction layer (43,143), it is parallel to and adjacent to described printed circuit board (PCB) (41); With
Shell (21), it is used for mechanically supporting the smooth structural member of described major part (31,131), and described shell (21) has thermo-contact with described heat conduction layer (43,143);
The smooth structural member (31,131) of wherein said major part can be inserted through the hole of described concave mirror (13) on the light beam exit direction;
Wherein when the smooth structural member (31,131) of described major part was inserted in the hole in the described concave mirror (13) fully, described a plurality of light emitting diodes (44,144) were positioned in the focus place of described concave mirror (13); With
Wherein when the smooth structural member (31,131) of described major part was inserted in described concave mirror (13) mesopore fully, described shell (21) major part remained on outside the described concave mirror (13).
8. motor vehicle rear assembled lamp according to claim 7 (10) is characterized in that, described concave mirror (13) directly receives the diverging light from described a plurality of light emitting diodes (44,144).
9. motor vehicle rear assembled lamp according to claim 7 (10) is characterized in that, described concave mirror (13) receives the diverging light (12) from the middle reflection between described a plurality of light emitting diodes (44,144) and the described concave mirror (13).
10. motor vehicle rear assembled lamp according to claim 9 (10) is characterized in that, described middle reflection is to be formed by at least one intermediate mirrors (45) that is attached to described printed circuit board (PCB) (41).
11. motor vehicle rear assembled lamp according to claim 7 (10) is characterized in that, described heat conduction layer (43,143) is integrally formed with described shell (21).
12. motor vehicle rear assembled lamp according to claim 7 (10) is characterized in that, described heat conduction layer (43,143) is attached to described shell (21).
13. motor vehicle rear assembled lamp according to claim 7 (10), it is characterized in that, the structural member (31 that described major part is smooth, 131) further comprise and be set at described printed circuit board (PCB) (41) and described heat conduction layer (43,143) cooling pad between (42), it is used to promote the thermo-contact between described printed circuit board (PCB) (41) and the described heat conduction layer (43,143).
14. motor vehicle rear assembled lamp according to claim 7 (10) is characterized in that, described concave mirror (13) is incomplete parabolic part.
15. motor vehicle rear assembled lamp according to claim 7 (10),
Wherein said concave mirror (13) comprises that a plurality of facets (19) turn to make described collimated light beam (14) angularly; With
Wherein the total angle of all facets (19) turns to overall formation to distribute about predetermined, the two-dimentional angle of described light beam exit direction.
16. motor vehicle rear assembled lamp according to claim 7 (10) is characterized in that further comprising:
Be set at the electric connector (46) on the described printed circuit board (PCB) (41);
Wherein said electric connector (46) comprises and is anti-parallel to a plurality of pins that described light beam exit direction extends through the hole in the described shell (21) substantially.
17. motor vehicle rear assembled lamp according to claim 7 (10) is characterized in that, described heat conduction layer (43,143) and described printed circuit board (PCB) (41) have essentially identical rectangular profile shape.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5673808P | 2008-05-28 | 2008-05-28 | |
| US61/056738 | 2008-05-28 | ||
| US61/056,738 | 2008-05-28 | ||
| US12/259725 | 2008-10-28 | ||
| US12/259,725 | 2008-10-28 | ||
| US12/259,725 US7762700B2 (en) | 2008-05-28 | 2008-10-28 | Rear-loaded light emitting diode module for automotive rear combination lamps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101592302A true CN101592302A (en) | 2009-12-02 |
| CN101592302B CN101592302B (en) | 2013-06-19 |
Family
ID=41407100
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101418146A Pending CN101592301A (en) | 2008-05-28 | 2009-05-26 | The side loading LED module that is used for motor vehicle rear assembled lamp |
| CN2009101418574A Expired - Fee Related CN101592302B (en) | 2008-05-28 | 2009-05-26 | Real loading LED module for motor vehicle rear assembled lamp |
| CN2009101418589A Expired - Fee Related CN101592303B (en) | 2008-05-28 | 2009-05-26 | Rear loading LED module for motor vehicle rear assembled lamp |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101418146A Pending CN101592301A (en) | 2008-05-28 | 2009-05-26 | The side loading LED module that is used for motor vehicle rear assembled lamp |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101418589A Expired - Fee Related CN101592303B (en) | 2008-05-28 | 2009-05-26 | Rear loading LED module for motor vehicle rear assembled lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN101592301A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662546A (en) * | 2018-06-11 | 2018-10-16 | 华域视觉科技(上海)有限公司 | LED automobile tail lamp |
| CN111094066A (en) * | 2017-04-20 | 2020-05-01 | 玛泽森创新有限公司 | Combined approach lamp and logo lamp |
| CN111094065A (en) * | 2017-03-31 | 2020-05-01 | 玛泽森创新有限公司 | Rearview assembly for motor vehicle with interchangeable access lights |
| CN117716164A (en) * | 2021-05-21 | 2024-03-15 | 亮锐有限责任公司 | LED refitted lamp circuit board |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009047487A1 (en) * | 2009-12-04 | 2011-06-09 | Osram Gesellschaft mit beschränkter Haftung | light module |
| JP5990410B2 (en) * | 2012-06-11 | 2016-09-14 | 株式会社小糸製作所 | Mobile lighting |
| CN102788270A (en) * | 2012-07-30 | 2012-11-21 | 苏州晶雷光电照明科技有限公司 | LED bulb |
| FR3008778B1 (en) * | 2013-07-22 | 2018-03-02 | Renault S.A.S | LIGHTING SYSTEM, IN PARTICULAR FOR A MOTOR VEHICLE LIGHTING BODY, WITH A PRINTED CIRCUIT BOARD IN RELATION TO THE DIRECTION OF LIGHTING |
| FR3008777B1 (en) * | 2013-07-22 | 2017-12-29 | Renault Sas | LIGHTING SYSTEM, IN PARTICULAR FOR A MOTOR VEHICLE LIGHTING BODY, WITH INTEGRATED LEDS |
| CN104515049A (en) * | 2013-09-27 | 2015-04-15 | 株式会社小糸制作所 | Railway vehicle headlamp |
| TWI561761B (en) * | 2014-07-16 | 2016-12-11 | Playnitride Inc | Optical module |
| CN104964228B (en) * | 2015-07-22 | 2017-11-10 | 神龙汽车有限公司 | A kind of LED-light guide based on reverse principle of luminosity |
| US10309592B2 (en) * | 2016-08-10 | 2019-06-04 | Bestop Baja, Llc | Rear facing multi-light and function light bar |
| DE102017110317A1 (en) * | 2017-05-12 | 2018-11-15 | Osram Opto Semiconductors Gmbh | Cover for an optoelectronic component and optoelectronic component |
| US10344959B2 (en) * | 2017-11-20 | 2019-07-09 | Streamlight, Inc. | Portable and/or mountable light |
| PL3492805T3 (en) * | 2017-12-01 | 2021-04-19 | Marelli Automotive Lighting Italy S.p.A. | Automotive lighting unit |
| DE102017129250B4 (en) * | 2017-12-08 | 2024-02-15 | Lisa Dräxlmaier GmbH | Cooling device, vehicle and method |
| JP6967961B2 (en) * | 2017-12-21 | 2021-11-17 | スタンレー電気株式会社 | Light source unit for vehicle lighting equipment and vehicle lighting equipment |
| DE102018101036A1 (en) * | 2018-01-18 | 2019-07-18 | HELLA GmbH & Co. KGaA | Tail light for a motor vehicle |
| JP7364409B2 (en) * | 2019-09-26 | 2023-10-18 | 株式会社小糸製作所 | vehicle lamp |
| US11273751B2 (en) | 2019-10-08 | 2022-03-15 | Bestop Baja, Llc | Auxiliary light for mounting to a vehicle |
| US11067254B1 (en) | 2019-10-08 | 2021-07-20 | Bestop Baja, Llc | Auxiliary light for mounting to a vehicle |
| CN114497330B (en) * | 2022-04-18 | 2022-07-12 | 至芯半导体(杭州)有限公司 | TO ultraviolet device packaging structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2544416Y (en) * | 2002-05-17 | 2003-04-09 | 葛世潮 | Large power LCD |
| CN100554766C (en) * | 2004-06-16 | 2009-10-28 | 奥斯兰姆施尔凡尼亚公司 | LED light lamp with light pipe |
| CN100559056C (en) * | 2004-12-27 | 2009-11-11 | 奥斯兰姆施尔凡尼亚公司 | LED bulb |
| CN2937794Y (en) * | 2006-08-15 | 2007-08-22 | 陈洋怀 | Electronic high-power cold light source tunnel motor vehicle lamp |
-
2009
- 2009-05-26 CN CNA2009101418146A patent/CN101592301A/en active Pending
- 2009-05-26 CN CN2009101418574A patent/CN101592302B/en not_active Expired - Fee Related
- 2009-05-26 CN CN2009101418589A patent/CN101592303B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111094065A (en) * | 2017-03-31 | 2020-05-01 | 玛泽森创新有限公司 | Rearview assembly for motor vehicle with interchangeable access lights |
| CN111094066A (en) * | 2017-04-20 | 2020-05-01 | 玛泽森创新有限公司 | Combined approach lamp and logo lamp |
| CN108662546A (en) * | 2018-06-11 | 2018-10-16 | 华域视觉科技(上海)有限公司 | LED automobile tail lamp |
| CN117716164A (en) * | 2021-05-21 | 2024-03-15 | 亮锐有限责任公司 | LED refitted lamp circuit board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101592303B (en) | 2012-12-26 |
| CN101592303A (en) | 2009-12-02 |
| CN101592301A (en) | 2009-12-02 |
| CN101592302B (en) | 2013-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101592302B (en) | Real loading LED module for motor vehicle rear assembled lamp | |
| US7762700B2 (en) | Rear-loaded light emitting diode module for automotive rear combination lamps | |
| US7762701B2 (en) | Rear-loaded light emitting diode module for automotive rear combination lamps | |
| US9890916B2 (en) | Lamp unit and vehicle using the same | |
| TWI422055B (en) | Led headlamp system | |
| US7905639B2 (en) | Side-loaded light emitting diode module for automotive rear combination lamps | |
| US9458979B2 (en) | Signal lamp for vehicle having a light guide and mirror housing and lamp housing with reflection unit and support unit | |
| US7059754B2 (en) | Apparatus and method for providing a modular vehicle light device | |
| US8251560B2 (en) | Vehicle headlight | |
| KR100939854B1 (en) | Light-guide lights providing a substantially monochromatic beam | |
| US8905609B2 (en) | Lighting system with shutter, reflector, primary light engine and a secondary light engine coupled to shutter | |
| KR20130138111A (en) | Lamp unit and vehicle for using the same | |
| JP2010218964A (en) | Vehicular lighting fixture | |
| EP2045514B2 (en) | Modular reflective optical lighting system and lighting device equipped therewith, in particular for vehicles | |
| GB2393506A (en) | Multiple reflector indirect light source lamp | |
| US7347604B2 (en) | LED lantern structure | |
| KR200483320Y1 (en) | Lamp for vehicle | |
| US20170122520A1 (en) | Lighting appliance for engine vehicles | |
| TWI852758B (en) | Illumination device for lighting pedestrian crossing | |
| CN117178136A (en) | Lighting device with optical component | |
| KR20140077587A (en) | Automotive lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20190526 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |