CN104864285A - LED bulb and assembly technology - Google Patents
LED bulb and assembly technology Download PDFInfo
- Publication number
- CN104864285A CN104864285A CN201510188544.XA CN201510188544A CN104864285A CN 104864285 A CN104864285 A CN 104864285A CN 201510188544 A CN201510188544 A CN 201510188544A CN 104864285 A CN104864285 A CN 104864285A
- Authority
- CN
- China
- Prior art keywords
- wick
- led bulb
- led
- shell
- seal chamber
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/90—Methods of manufacture
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V25/00—Safety devices structurally associated with lighting devices
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention discloses a LED bulb and an assembly technology. The LED bulb comprises a bulb shell and a wick, wherein the wick comprises a wick pillar containing a conductive piece and an LED light bar connected with an external circuit through the conductive piece; part of the wick pillar penetrates into and connects with the bulb shell to form a seal chamber; the connecting part of the conductive piece and the LED light bar is coated with an insulating layer, so that the wick part in the seal chamber is fully insulated. The assembly technology comprises the following steps: (1) the two ends of the LED light bar are connected with the conductive piece on the wick pillar to obtain the wick; (2) heatproof insulation paste is smeared on the connecting part of the conductive piece and the LED light bar and solidified into the insulating layer; (3) the wick and the bulb are connected to form the seal chamber. According to the LED bulb, the connecting part of the conductive piece and the LED light bar is coated with the insulating layer, so that the wick part in the seal chamber is fully insulated and potential safety hazards can be avoided even if the bulb shell is broken; heatproof insulation paste is solidified into the insulating layer and the technology is simple.
Description
Technical field
The present invention relates to technical field of LED illumination, particularly relate to a kind of LED bulb and packaging technology.
Background technology
LED bulb meets environmental protection, energy-conservation requirement, when not changing conventional lamp pedestal and circuit, can replace traditional incandescent lamp and electricity-saving lamp, but serious owing to generating heat when LED works, and often needs installation of heat radiator.As CN 101907240A discloses a kind of LEDbulb lamp, comprise LED module, power supply, radiator, lamp holder and cloche, LED module is arranged on circular cooling base, is covered with a hemispheroidal cloche, is connected to radiator under cloche outside LED module, it is lamp holder below radiator, power supply is arranged in the space within radiator, and described radiator surface becomes the shape of fence, can well dispel the heat, lamp plate face is combine closely with it, and temperature can derive timely.The bulb of this structure, owing to carrying radiator, causes manufacturing cost high, and cell-shell volume is little, cannot 360 degree of luminescences.
CN201944638U discloses and a kind ofly directly can replace the LED bulb of incandescent lamp for sense light, comprise a printing opacity cell-shell, the stem stem of band blast pipe, electric lead-out wire and a pillar, at least one LED light-emitting section, a driver, an electric connector, LED light-emitting section is fixed on the pillar of stem stem, the electrode of LED is connected with driver, electric connector through the electric lead-out wire of stem stem, to connect external power; Printing opacity cell-shell and stem stem vacuum seal, be filled with high thermal conductivity inert gas in cell-shell, heat radiation and protection LED; LED light-emitting section comprises a transparency carrier or MPCB, it is provided with the LED chip of at least a string identical or different illuminant colour, and described chip and transparency carrier surrounding have transparent dielectric layer, also can have luminous bisque; Described driver is resistance-capacitance depressurization, rectifying and wave-filtering and sense light match circuit.
The bulb of above structure eliminates traditional heat sinks, greatly reduces manufacturing cost, but as improper use, causes cell-shell to break, and inner electric-conductor will be aloft exposed, there is potential safety hazard.Existing solution smears insulating cement at cell-shell outer surface, but effect is unsatisfactory, and insulating cement is heated and can softens, adhering dust on the one hand, causes bulb light transmittance to reduce, and after can not ensureing cell-shell breakage completely on the other hand, inner battery core necessarily insulate.
Summary of the invention
The invention provides a kind of LED bulb, exposed on-insulated to solve traditional LED lamp bubble wick portion after broken shell breakage, there is the problem of potential safety hazard.
LED bulb, comprise cell-shell and wick, described wick is comprised the stem stem of band electric-conductor and is connected the LED lamp bar of external power source by electric-conductor, described stem portion to stretch in cell-shell and is connected to form seal chamber with cell-shell, connecting portion coated insulation layer between described electric-conductor and LED lamp bar, the part that wick is in seal chamber insulate completely.
The structure of described stem stem and LED lamp bar can with reference to content disclosed in CN201944638U.
Preferably, described insulating barrier is transparent, even if insulating barrier sticks in LED lamp bar also do not affect printing opacity.
Because described connecting portion is more tiny, independent coated insulation layer, there is difficulty in processing; Preferably, described wick stretches into the partial outer face coated insulation layer in cell-shell, is convenient to manufacture.
Preferably, described insulating barrier is by high temperature insulation glue through solidifying to form, and the binding agent of the DC-OE6370M that this insulating cement can select DOW CORNING to produce, this binding agent comprises A, B two components.
Preferably, described high temperature insulation glue is attached to the outer surface of conductive component by dip-coating, a technique being coated with or spraying.
Preferably, the thickness 0.1-10mm of described insulating barrier.
Because sending amount of heat when LED works, therefore need good heat resistance, generally, the tolerable temperature of described insulating barrier is for being not less than 40 DEG C.
For the ease of heat conduction, in described seal chamber, fill heat-conducting gas.
Preferably, described heat-conducting gas is hydrogen, helium or both mists.
Present invention also offers the packaging technology of LED bulb, comprise the following steps:
(1) LED lamp bar two ends are connected with the electric-conductor on stem stem, obtain wick;
(2) the connecting portion dip-coating between electric-conductor and LED lamp bar, spraying or a painting high temperature insulation glue, solidify to form insulating barrier;
(3) wick is connected with cell-shell, forms seal chamber.
Connecting portion insulating barrier between electric-conductor of the present invention and LED lamp bar is coated, and the part making wick be positioned at cell-shell insulate completely, even if cell-shell breaks, also there is not potential safety hazard, insulating barrier is positioned at cell-shell in addition, can not be infected with by dust, add that thickness is less, do not affect luminescence; Insulating barrier of the present invention is formed by high temperature insulation adhesive curing, and manufacture craft is simple, is easy to realize.
Accompanying drawing explanation
Fig. 1 is the structural representation of LED bulb of the present invention.
Fig. 2 is A enlarged cross-sectional view in LED bulb shown in Fig. 1.
Detailed description of the invention
As shown in Figure 1, a kind of LED bulb, comprise lamp holder 2, cell-shell 1, stem stem 31 and LED lamp bar 32, LED lamp bar 32 is made up of at least a string LED chip on substrate and substrate, its two ends have electrode outlet line, and LED chip is fixed on substrate by transparent adhesive tape, and LED chip can adopt 4 π luminescence chips, substrate also can adopt transparent material, thus realizes the 360 ° of luminescences of lamp bar.In order to allow LED lamp bar send assorted light, in transparent adhesive tape, be added with fluorescent material.LED lamp bar can be vertical bar shaped, also can be arc, shaped form or annular.
Stem stem main body is made up of glass, it and cell-shell are connected to form seal chamber, inside is provided with the wire 33 of conduction, wire two ends are drawn, and the electrode outlet line of one end and LED lamp bar of being positioned at seal chamber inside is connected, and normally spot welding connects, also can wire directly and substrate spot welding, realize connecting, so can save electrode outlet line, the other end is connected with external circuit.External circuit mainly refers to power drives, can convert alternating current to direct current.Wire major part is imbedded in stem stem, only have two ends to be exposed, because wherein one end is connected with LED lamp bar, be in seal chamber inside, when cell-shell is broken,, there is potential safety hazard, as shown in Figure 2 in exposed wire conduction, the connecting portion 36 coated insulation layer 34 of the present invention between wire 33 and LED lamp bar 32, this connecting portion comprises the exposed end of wire and electrode outlet line, if do not have electrode outlet line, then only comprises the end of exposed wire 33.
The method of coated insulation layer 34 is a lot, as wrapped up insulating tape, if insulation sleeve etc., but all there is the problem of processing technology complexity, and the present invention adopts at connecting portion coating high temperature insulation glue, then solidify to form insulating barrier, simplifies technique.The method of coating can be dipping, drip painting and spraying etc.The easiest method is dipping, and part stem stem being arranged in seal chamber immerses high temperature insulation glue completely, makes integral surface there is insulating barrier.But this method waste material, and thickness of insulating layer is wayward, especially a layer insulating can be added in LED lamp bar outside, affect its luminescent properties, but, when making LED lamp bar, can first not encapsulate, after being assembled by wick, immerse high temperature insulation glue, while forming insulating barrier, also reach the object of encapsulation.Drip be coated with there is the few advantage of materials, but due to connecting portion very tiny, be unfavorable for that streamlined operates, reliability is poor.
High temperature insulation glue used it would be desirable to adopt and encapsulates same glue with LED lamp bar, gluewater for packaging water light transmission is good, and there is good heat resistance, the present invention's high temperature insulation used glue is heat-resisting should be not less than 40 DEG C, found through experiments, the binding agent of the DC-OE6370M that high temperature insulation glue can adopt DOW CORNING to produce, can meet requirement that is heat-resisting and insulation.The thickness of insulating layer solidify to form, generally at 0.1-10mm, does not pass through according to technique, and thickness exists very big-difference, and in theory, the thickness of dipping and spraying is less, and the thickness dripping painting is larger.
As shown in Figure 1, there is pillar 35 at stem stem center, and many one metal wires 33 are buried in inside, and the quantity of LED lamp bar 32 also often more than one, the wire 33 that the electrode outlet line at LED lamp bar two ends is different from two respectively connects, and forms wick 3.According to mode as shown in Figure 1, multiple LED lamp bar is arranged in parallel, and arrangement forms back taper, and as required, LED lamp bar can arrange and form various shape.But need LED lamp bar and connecting portion coated insulation layer wiry, make wick be positioned at seal chamber part and insulate completely, eliminate safe hidden trouble.Wire 33 other end is positioned at seal chamber outside, connects external circuit and lamp holder 2 successively.As previously mentioned, external circuit generally comprises power drives, is arranged on lamp holder inside.Lamp holder can screw socket, also can adopt other click on fashion.
Claims (10)
1.LED bulb, comprise cell-shell and wick, described wick is comprised the stem stem of band electric-conductor and is connected the LED lamp bar of external power source by electric-conductor, described stem portion to stretch in cell-shell and is connected to form seal chamber with cell-shell, it is characterized in that, connecting portion coated insulation layer between described electric-conductor and LED lamp bar, the part that wick is in seal chamber insulate completely.
2. LED bulb as claimed in claim 1, it is characterized in that, described insulating barrier is transparent.
3. LED bulb as claimed in claim 2, it is characterized in that, described wick stretches into the partial outer face coated insulation layer in cell-shell.
4. the LED bulb as described in claim 1 or 3, is characterized in that, described insulating barrier is formed by high temperature insulation adhesive curing.
5. LED bulb as claimed in claim 4, is characterized in that, described high temperature insulation glue is attached to the outer surface of conductive component by dip-coating, a technique being coated with or spraying.
6. the LED bulb as described in claim 1 or 3, is characterized in that, the thickness 0.1-10mm of described insulating barrier.
7. the LED bulb as described in claim 1 or 3, is characterized in that, the tolerable temperature of described insulating barrier is for being not less than 40 DEG C.
8. the LED bulb as described in claim 1 or 3, is characterized in that, fills heat-conducting gas in described seal chamber.
9. LED bulb as claimed in claim 8, it is characterized in that, described heat-conducting gas is hydrogen, helium or both mists.
The packaging technology of 10.LED bulb, is characterized in that, comprises the following steps:
(1) LED lamp bar two ends are connected with the electric-conductor on stem stem, obtain wick;
(2) the connecting portion dip-coating between electric-conductor and LED lamp bar, spraying or a painting high temperature insulation glue, solidify to form insulating barrier;
(3) wick is connected with cell-shell, forms seal chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510188544.XA CN104864285A (en) | 2015-04-20 | 2015-04-20 | LED bulb and assembly technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510188544.XA CN104864285A (en) | 2015-04-20 | 2015-04-20 | LED bulb and assembly technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104864285A true CN104864285A (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510188544.XA Pending CN104864285A (en) | 2015-04-20 | 2015-04-20 | LED bulb and assembly technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104864285A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195678A (en) * | 2016-08-19 | 2016-12-07 | 林金山 | Waterproof anti-creeping LED |
| CN108464716A (en) * | 2018-04-16 | 2018-08-31 | 桐乡市米伽家纺有限公司 | A kind of luminous lighting carpet |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737665A (en) * | 2008-11-26 | 2010-06-16 | 张文龙 | Manufacturing method of LED lamp string |
| CN201661897U (en) * | 2010-02-08 | 2010-12-01 | 张家豪 | Strip lamp cladding structure |
| CN201944638U (en) * | 2010-11-22 | 2011-08-24 | 葛世潮 | LED lamp bulb for a sense lamp capable of directly replacing an incandescent lamp |
| CN103511993A (en) * | 2012-06-19 | 2014-01-15 | 王树生 | Manufacturing method of LED lamp and LED lamp |
| CN203517629U (en) * | 2013-10-18 | 2014-04-02 | 张静 | LED (light-emitting diode) fluorescent lamp tube structure |
-
2015
- 2015-04-20 CN CN201510188544.XA patent/CN104864285A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737665A (en) * | 2008-11-26 | 2010-06-16 | 张文龙 | Manufacturing method of LED lamp string |
| CN201661897U (en) * | 2010-02-08 | 2010-12-01 | 张家豪 | Strip lamp cladding structure |
| CN201944638U (en) * | 2010-11-22 | 2011-08-24 | 葛世潮 | LED lamp bulb for a sense lamp capable of directly replacing an incandescent lamp |
| CN103511993A (en) * | 2012-06-19 | 2014-01-15 | 王树生 | Manufacturing method of LED lamp and LED lamp |
| CN203517629U (en) * | 2013-10-18 | 2014-04-02 | 张静 | LED (light-emitting diode) fluorescent lamp tube structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195678A (en) * | 2016-08-19 | 2016-12-07 | 林金山 | Waterproof anti-creeping LED |
| CN108464716A (en) * | 2018-04-16 | 2018-08-31 | 桐乡市米伽家纺有限公司 | A kind of luminous lighting carpet |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150826 |
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| RJ01 | Rejection of invention patent application after publication |