CN101660726B - Light emitting diode assembly - Google Patents
Light emitting diode assembly Download PDFInfo
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- CN101660726B CN101660726B CN2008103043041A CN200810304304A CN101660726B CN 101660726 B CN101660726 B CN 101660726B CN 2008103043041 A CN2008103043041 A CN 2008103043041A CN 200810304304 A CN200810304304 A CN 200810304304A CN 101660726 B CN101660726 B CN 101660726B
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- light emitting
- emitting diode
- circuit board
- fixture
- supporter
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Abstract
The invention relates to a light emitting diode assembly comprising a light emitting diode die set, a grounded support body and a conductive fixing device fixing the light emitting diode die set on the support body, wherein the light emitting diode die set comprises a circuit board and a plurality of light emitting diodes installed on the circuit board, the circuit board comprises a metal board body and an insulation layer, one end of the fixing device penetrates in the support body, and the other end of the fixing device penetrates through the insulation layer of the circuit board and is connected with the metal board body. The light emitting diode assembly adopts the fixing device to connect the insulation layer of the circuit board to the grounded support body, static electricity accumulation can be prevented, and leakage current is effectively discharged, thereby ensuring the safety of the light emitting diodes.
Description
Technical field
The present invention relates to a kind of light emitting diode combined, but refer to especially a kind of light emitting diode combined of antistatic.
Background technology
As a kind of emerging light source, the advantages such as light emitting diode relies on that its luminous efficiency is high, volume is little, lightweight, environmental protection have been widely applied in the middle of each current lighting field, and the trend that replaces conventional light source is arranged greatly.Because the brightness of single light emitting diode is limited, for the light intensity that makes generation reaches lighting requirement, all integrated light emitting diode in a large number in present general LED lamp.In LED lamp, the light emitting diode of these One's name is legions is integrated into respectively and forms the polylith light emitting diode module on some circuit boards, these light emitting diode module are fixed in a lamp housing jointly by bracing frame again, to consist of the light source of LED lamp.
The heat that produces when working due to light emitting diode can have influence on its luminous efficiency, cause the emitting brightness of LED lamp to reduce, for as much as possible these heats being distributed rapidly, the circuit board of light emitting diode module generally adopts metallic plate to make, to rely on its good heat-transfer capability that the heat of light emitting diode is transferred on lamp housing by bracing frame, and then be distributed in the middle of ambient air by lamp housing, thereby guarantee the normal operation of light emitting diode.
Affect the electrical connection between itself and light emitting diode for the conductive capability that makes circuit board is unlikely, circuit board its metallic plate be used for form successively one first insulating barrier, a conductive layer and one second insulating barrier on the surface of diode installed.The pin of light emitting diode is connected with conductive layer and is separated by the metallic plate of first and second insulating barrier and the external world and circuit board, thereby the electric current that enters light emitting diode module can be inputted in light emitting diode uninterruptedly, drives lumination of light emitting diode.
For light emitting diode module is fixed on bracing frame, the general practice of industry is that some screws with plastic washers are passed the circuit board of light emitting diode module at present, make it screw lock on bracing frame, thereby with light emitting diode module and bracing frame close contact.Yet this kind fixed form bring huge hidden danger can for the running of LED lamp: LED lamp is in the situation that in transportation or standing high voltage test, very easily produce static on the second surface of insulating layer of its circuit board.But due to the insulated barriers of Screw gasket, these static can't be dredged to lamp housing by screw or other approach, to such an extent as to be deposited in gradually the second surface of insulating layer.To a certain degree the time, just easily produce the instantaneous discharge phenomenon when these accumulation of static electricity, cause great electric current transient flow through light emitting diode, cause the damage of light emitting diode.In addition, LED lamp is in the situation that Hi-pot test also easily produces leaky, and due to the approach of dredging that there is no other, this kind leakage current can only conduct by light emitting diode, causes light emitting diode to have breakdown danger.
Summary of the invention
In view of this, be necessary to provide in fact a kind of effectively light emitting diode combined of conduct static.
a kind of light emitting diode combined, comprise a light emitting diode module, the supporter of one ground connection and one is fixed in the fixture of the conduction on supporter with light emitting diode module, this light emitting diode module comprises a circuit board and some light emitting diodes that is installed on circuit board, this circuit board comprises a metal plate and an insulating barrier, one end of this fixture penetrates in supporter, the other end of this fixture passes the insulating barrier of circuit board and is connected to metal plate, this fixture comprises that a head and is from the extended bar of head section, this bar section is arranged in supporter, this fixture also comprises some tooth sections around bar section, these teeth section is connected to metal plate.
Compared with prior art, the other end of the fixture of light emitting diode combined of the present invention pass circuit board insulating barrier and with the metal plate electrical contact, it can be with at the static that produces on insulating barrier or electric leakage is directly conducted on supporter, or conduct on supporter by metal plate, and then dredge away via supporter.Therefore, light emitting diode combined of the present invention is stopped the accumulation of static, and effectively dredges leakage current, thereby guarantees the normal operation of light emitting diode.
With reference to the accompanying drawings, the invention will be further described in conjunction with specific embodiments.
Description of drawings
Fig. 1 is the top view of the light emitting diode combined of the first embodiment of the present invention.
Fig. 2 be Fig. 1 along the profile of II-II line, this moment light emitting diode combined two buckling devices not yet penetrate in circuit board and supporter.
Fig. 3 is similar to Fig. 2, and wherein supporter is removed and the one buckling device penetrates in circuit board.
Fig. 4 is the cutaway view of the light emitting diode combined of second embodiment of the invention.
The specific embodiment
See also Fig. 1 and Fig. 2, show the light emitting diode combined of first embodiment of the invention.This light emitting diode combined comprises that the light emitting diode module 10 and two that a supporter 20, is arranged on supporter 20 is fixed in buckling device 30 on supporter 20 with light emitting diode module 10.This supporter 20 is made by metal material, and its dissipation of heat that produces when working for carrying light emitting diode module 10 and with light emitting diode module 10 is to ambient air.This supporter 20 is the structure of a rectangle in the figure that goes out shown in the present, and understandably, it also can be changed to the structure of other arbitrary shapes, to adapt to the demand of variety classes light fixture.Even say, supporter 20 of the present invention not only is confined to supporting role, it can also have other purposes concurrently, as be varied to arch with as the lamp casing of accommodating light emitting diode module 10, or being varied to taper penetrates with different angles with the light of a plurality of light emitting diode module 10 that will be mounted thereon.This supporter 20 is by wire or other mode ground connection, with the Anti-static of light emitting diode module 10 in greatly.
This light emitting diode module 10 comprises a circuit board 12 and some light emitting diodes 14 that is arranged on this circuit board 12.This circuit board 12 comprises the metal plate 120 of a rectangle and is formed at successively one first insulating barrier 122, a conductive layer (not shown) and one second insulating barrier 124 of plate body 120 upper surfaces.The thickness of this metal plate 120 is 1.5mm, and the gross thickness of this first insulating barrier 122, conductive layer and the second insulating barrier 124 is 0.1mm.The pin (not shown) of light emitting diode 14 is connected on the conductive layer of circuit board 12, inputing in light emitting diode 14 from the electric current that circuit board 12 enters.The first insulating barrier 122 and the second insulating barrier 124 are respectively used to conductive layer is separated with plate body 120 and the external world, and the electric current of the circuit board 12 that prevents from flowing through is subject to external interference.Two perforation 126 vertically run through circuit board 12, pass for two buckling devices 30.Affect the transmission of electric current in circuit board 12 for preventing that conductive layer and buckling device 30 from electrically conducting, conductive layer has been avoided two perforation 126 on being layed in the first insulating barrier 122 time, that is to say, near the position two perforation 126, the first insulating barrier 122 directly contacts with the second insulating barrier 124.Therefore, along in the profile 2 of the II-II line of Fig. 1, the first insulating barrier 122 and the second insulating barrier 124 only being shown.In addition, because interconnective the first insulating barrier 122 in hatching line place and the second insulating barrier 124 at II-II all play insulating effect, both function essence is identical, therefore can jointly be considered as a thicker insulating barrier.
Above-mentioned two buckling devices 30 pass circuit board 12 and light emitting diode module 10 are locked on supporter 20.In the first embodiment of the present invention, this buckling device 30 is band tooth screw 30.This kind screw 30 has the head identical with conventional screw 32, downward extended bar the section 34 and two interleaved grooves 38 of being located at head 32 end faces from head 32 bottom surfaces.To protrude out some teeth section 36 in the zone of head 32 bottom surfaces of this screw 30 around bar section 34 downwards with traditional screw difference.Each tooth section 36 is taper configurations wide at the top and narrow at the bottom, and it is used for first and second insulating barrier 122,124 of scraping circuit board 12, with the metal plate 120 that exposes circuit board 12.
See also Fig. 3, when assembling this light emitting diode combined, at first two-screw 30 is passed two perforation 126 of circuit board 12, make the end of its bar section 34 be positioned at supporter 20 tops that default in circuit board 12 belows.Then screw two-screw 30 downwards, the end of bar section 34 is penetrated downwards in supporter 20, head 32 also rotated and approached gradually the second insulating barrier 124 of circuit board 12 this moment.When screw 30 rotation makes the end of its tooth section 36 be resisted against the end face of the second insulating barrier 124 to a certain position, continue to screw screw 30 downwards, make its tooth section 36 scraping the second insulating barrier 124 and the first insulating barriers 122.Until the tooth section 36 of screw 30 against till the end face of plate body 120, just finishes the operation to screw 30.Bar section 34 ends of screw 30 were locked fully in supporter 20 and light emitting diode module 10 were fixed on supporter 20 this moment, the tooth section 36 of screw 30 scrapes off corresponding the first insulating barrier 122 and the second insulating barrier 124 and form the groove (figure is mark) of an annular around each perforation 126, and head 32 parts of screw 30 are placed in groove and protrude out outside circuit board 12.
Compared with prior art, light emitting diode combined of the present invention adopts and scrapes off first and second insulating barrier 122 of circuit board 12,124 method with tooth screw 30, and the end face of the second insulating barrier 124 is electrically conducted by screw 30 and metal plate 120 supporter 20 with ground connection.Thus, the static that produces at circuit board 12 second insulating barrier 124 end faces or electric leakage can conduct in supporter 20 by screw 30 and metal plate 120, and then dredge in greatly, thereby prevent that light emitting diode 14 from damaging because of static discharge or electric leakage.
Understandably, for two insulating barriers 122 that make circuit board 12,124 appropriate section can be removed clean, contact with the metal plate 120 of circuit board 12 fully with the head 32 of guaranteeing screw 30, can continue to screw screw 30 downwards after the end face of living metal plate 120 in the tooth section 36 of screw 30, make its tooth section 36 scraping metal plates 120.The degree of depth of scraping depends on the size of operator's application of force, and is preferred, and for obtain a balance between application of force size and the scraping degree of depth, the degree of depth of scraping metal plate 120 can be controlled in the 0.2mm left and right.
In addition, buckling device 30 of the present invention also can be varied to the structure of second embodiment of the invention as shown in Figure 4, the difference of itself and the first embodiment is the screw 30 of the first embodiment is separated into two independent parts, namely adopts traditional screw (figure is mark) to combine with metal gasket ring 31a with the tooth 36a of section.Adopt the structure of buckling device 30a shown in Figure 4, can remove from traditional screw is processed casting, namely do not need head 32a or the bar 34a of section of conventional screw are carried out any modification, only need the extra gasket ring 31a of manufacturing to get final product, make and adopt traditional screw also can reach the effect identical with the first embodiment.
Claims (8)
1. light emitting diode combined, comprise a light emitting diode module, the supporter of one ground connection and one is fixed in the fixture of the conduction on supporter with light emitting diode module, this light emitting diode module comprises a circuit board and some light emitting diodes that is installed on circuit board, this circuit board comprises a metal plate, one conductive layer and an insulating barrier, it is characterized in that: an end of this fixture penetrates in supporter, the other end of this fixture passes the insulating barrier of circuit board and is connected to metal plate, this fixture comprises that a head and is from the extended bar of head section, this bar section is arranged in supporter, this fixture also comprises some tooth sections around bar section, the scraping of these teeth section is removed insulating barriers and is connected to metal plate.
2. light emitting diode combined as claimed in claim 1 is characterized in that: each tooth section is tapered, and its sharp-pointed end contacts with metal plate.
3. light emitting diode combined as claimed in claim 1 is characterized in that: these teeth sections is formed on the head of fixture.
4. light emitting diode combined as claimed in claim 1 is characterized in that: this fixture comprises that also one is sheathed on the gasket ring in bar section, and these teeth sections is formed on this gasket ring.
5. light emitting diode combined as claimed in claim 4, it is characterized in that: this gasket ring is located between the head and circuit board of fixture.
6. light emitting diode combined as claimed in claim 1 is characterized in that: this fixture is a band tooth screw.
7. light emitting diode combined as claimed in claim 1, it is characterized in that: this fixture is that a cover has the screw with the tooth gasket ring.
8. light emitting diode combined as claimed in claim 1 is characterized in that: the other end of this fixture gos deep in metal plate the position apart from insulating barrier and metal plate interface 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103043041A CN101660726B (en) | 2008-08-29 | 2008-08-29 | Light emitting diode assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008103043041A CN101660726B (en) | 2008-08-29 | 2008-08-29 | Light emitting diode assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101660726A CN101660726A (en) | 2010-03-03 |
| CN101660726B true CN101660726B (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008103043041A Expired - Fee Related CN101660726B (en) | 2008-08-29 | 2008-08-29 | Light emitting diode assembly |
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| Country | Link |
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| CN (1) | CN101660726B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128419A (en) * | 2011-04-22 | 2011-07-20 | 浙江生辉照明有限公司 | Breakdown protection method of LED (Light-Emitting Diode) light source and LED lamp |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195427A (en) * | 1995-09-04 | 1998-10-07 | 中州电机株式会社 | Parts and tool for obtaining production for use at electrical connection |
| CN1274906A (en) * | 1999-05-24 | 2000-11-29 | 索尼公司 | Two-dimensional display device |
| CN101213675A (en) * | 2005-06-30 | 2008-07-02 | 松下电工株式会社 | Light-emitting device |
| CN201281255Y (en) * | 2008-09-03 | 2009-07-29 | 富准精密工业(深圳)有限公司 | LED combination |
-
2008
- 2008-08-29 CN CN2008103043041A patent/CN101660726B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1195427A (en) * | 1995-09-04 | 1998-10-07 | 中州电机株式会社 | Parts and tool for obtaining production for use at electrical connection |
| CN1274906A (en) * | 1999-05-24 | 2000-11-29 | 索尼公司 | Two-dimensional display device |
| CN101213675A (en) * | 2005-06-30 | 2008-07-02 | 松下电工株式会社 | Light-emitting device |
| CN201281255Y (en) * | 2008-09-03 | 2009-07-29 | 富准精密工业(深圳)有限公司 | LED combination |
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| Publication number | Publication date |
|---|---|
| CN101660726A (en) | 2010-03-03 |
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