CN205174069U - LED bulb with U -shaped filament - Google Patents
LED bulb with U -shaped filament Download PDFInfo
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- CN205174069U CN205174069U CN201520996004.XU CN201520996004U CN205174069U CN 205174069 U CN205174069 U CN 205174069U CN 201520996004 U CN201520996004 U CN 201520996004U CN 205174069 U CN205174069 U CN 205174069U
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- stem
- light
- led
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- cell
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
The utility model relates to a LED bulb with U -shaped filament, include: the cell -shell the lamp holder is installed to the cell -shell upper end, the inside stem stem that is equipped with of cell -shell the welding has luminous strip on the stem stem, stem stem upper portion is equipped with the blast pipe blast pipe upper portion is equipped with and seals by fusing, and two electric lead -out wires are established the stem stem both sides, the electricity lead -out wire one end with luminous strip welding, the other end with the inside driver of lamp holder is connected, luminous strip is including the base plate install a plurality of LED chips that have on the base plate. The beneficial effects of the utility model are that: through mounting substrate on the stem stem, a plurality of LED chips of installation on the base plate, luminous efficacy is high, 360 degrees light -emittings of chip, the light -emitting rate improves more than 65%, it is with low costs, longe -lived, safe and reliable, the glare is light, a plurality of undercurrent LED chip dispersed and distributed, the glare that has alleviateed the LED chip.
Description
Technical field
The utility model relates to lighting device technical field, particularly relates to a kind of LED bulb with U-shaped filament.
Background technology
Existing bulb is all install tungsten filament, and its illumination is in ruddiness, and electricity-saving lamp can in the light of white, the problems such as its light is more weak, and illuminating effect is not ideal enough, and power consumption is higher, easily occurs light deviation, and irradiating angle is comprehensive not.Other are with the LED bulb of U-shaped filament, and it requires to solve heat dissipation problem, and the bulb of a lot of small size does not reach desirable brightness and illuminating effect.
Utility model content
For the weak point existed in the problems referred to above, the utility model provides a kind of LED bulb with U-shaped filament.Especially desirable brightness and illuminating effect is reached with the bulb that U-shaped LED silk solves a lot of small size.
For achieving the above object, the utility model provides a kind of LED bulb with U-shaped filament, comprising:
Cell-shell, is provided with lamp holder in described cell-shell upper end;
Described cell-shell inside is provided with stem stem, described stem stem is welded with light-emitting section, described stem stem top is provided with blast pipe, sealing by fusing is provided with on described blast pipe top, two electric lead-out wires are located at described stem stem both sides, one end of described electric lead-out wire is welded with described light-emitting section, and the other end is connected with the driver of described lamp holder inside;
Described light-emitting section comprises metal substrate or other flexible material substrate, is provided with multiple LED chip on the substrate.
Improve further as the utility model, connect for serial or parallel connection or string between multiple described LED chip.
Improve further as the utility model, described light-emitting section is U-shaped or circular or hemispherical.
Improve further as the utility model, the projection on described lamp holder top is connected with connecting line a.
Improve further as the utility model, described cell-shell inside is cavity, and in described cavity, punching has the hydrogen of high thermal conductivity or nitrogen or helium or argon gas or neon etc. other can heat-conducting gas, and its pressure is at room temperature 50-15Torr.
Improve further as the utility model, described transparent bulb case A-type or G-type, R-type or PAR-type or T-type, ST type or candle type.
The beneficial effects of the utility model are: be provided with stem stem by being provided with lamp holder cell-shell inside on cell-shell, stem stem is welded with light-emitting section, and electric lead-out wire one end is welded with light-emitting section, and the other end is connected with the driver of lamp holder inside; Light-emitting section comprises substrate, is provided with multiple LED chip on the substrate.Luminous efficiency is high, vacuum-packed low coefficient of viscosity gaseous exchange heat radiation, solves the heat dissipation problem of the LED chip of 360 degree of bright dippings, chip 360 degree of bright dippings, and light emission rate improves more than 65%; With the high-voltage LED light-emitting section of a plurality of chip-in series; Whole lamp efficiency is than existing LEDbulb lamp height about a times, higher than energy-saving fluorescent lamp 2 times, higher than incandescent lamp 10 times.Cost is low, and the convection current of the heat produced during LED work, the low sticky coefficient high thermal conductivity gas in vacuum-packed cell-shell and conduction are again through cell-shell heat radiation, and complete different metal heat radiation, completely without metal heat sink; Use high-voltage LED light-emitting section, without the need to the AC/DC converter with transformer by high cost; Whole lamp cost reduces by more than 2/3.Life-span is long, whole lamp is without any life-span short element, LED light-emitting section is in vacuum seal and be filled with in the cell-shell of inert gas helium, be not subject to the impact of the steam of surrounding environment etc. completely, add that chip dispersion is installed, worked under small area analysis low temperature, with the 5-10 long-life of ten thousand hours that may reach LED itself service life of the LED bulb of U-shaped filament.Safe and reliable, high-voltage LED light-emitting section and high working voltage thereof are sealed in vacuum-packed cell-shell, safe and reliable, solve the safety problem of prior art ACLED and HVLED.Lightweight is little, and whole lamp is without metal heat sink and transformer, and lamp weight saving more than 2/3, its weight ratio fluorescent lamp energy saving lamp is also light, close to incandescent lamp.Its volume can be the same with incandescent lamp.Dazzle is light, and a plurality of small area analysis LED chip dispersion distribution, alleviates the dazzle of LED chip.Along with the further raising of LED chip internal quantum efficiency and the continuous decline of chip price, light-emitting section flexible one-tenth conventional incandescent is the same, and great advantage can use in various miniature bulb after bending; Directly can replace refrigerator bubble micro-wave oven, ornament lamp, wait the bulb of various below 15W, power is low, and a filament only has 0.1-1W, energy-conserving and environment-protective.Also can add several and be produced into G4, G9 replaces conventional halogen bulb.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of LED bulb with U-shaped filament of the utility model;
Fig. 2 is the structural representation of the light-emitting section of the bulb shown in Fig. 1;
Fig. 3 is the sectional view of A-A in Fig. 2.
In figure: 1, cell-shell; 2, blast pipe; 3, electric lead-out wire; 4, stem stem; 5, light-emitting section; 6, driver; 7, lamp holder; 9, connecting line a; 10, cavity; 11, substrate; 12, LED chip; 13, connecting line b; 14, electrode outlet line; 15, fixture; 16, end face; 17, connecting line c; 18, transparent adhesive tape; 19, transparent colloid.
Detailed description of the invention
As shown in Figure 1, a kind of LED bulb with U-shaped filament described in the utility model embodiment, includes cell-shell 1, blast pipe 2, electric lead-out wire 3 and stem stem 4, light-emitting section 5, light-emitting section 5 is U-shaped or circular or hemispherical, a driver 6, a lamp holder 7, is interconnected to a whole lamp.Light-emitting section 5 is fixed on stem stem 4 by electric lead-out wire 3, its electrode through stem stem 4 electric lead-out wire 3, driver 6, connecting line a9, be connected with lamp holder 7, connect external power, connect external power, the flexible light-emitting section 5 of LED can be lighted.Cell-shell 1 and stem stem 4 vacuum seal, form a vacuum-packed cavity 10, is filled with helium or can high thermal conductivity gas in described cavity 10, and the heat produced when flexible for LED light-emitting section 5 can be worked dissipates through cell-shell 1 through the convection current of described gas and conduction again.Cell-shell 1 and stem stem 4 vacuum seal, namely at the connection high temperature of cell-shell 1 and stem stem 4 the two sealing by fusing, form a vacuum-packed cavity 10, its technique is identical with the sealing by fusing technique of traditional incandescent lamp, and one end of flexible for LED light-emitting section 5 and electric lead-out wire 3 and the flexible light-emitting section of LED 5 are sealed in vacuum-packed cavity 10.Then after blast pipe 2 vacuumizes vacuum seal cavity 10, be filled with helium or can high thermal conductivity gas, low coefficient of viscosity high thermal conductivity gas in vacuum seal cavity 10, be such as helium, hydrogen or helium hydrogen gaseous mixture, its air pressure is at room temperature 50-15Torr, helium is the gas that in gas, the coefficient of viscosity is minimum, (hydrogen is 173 μ P to be only 116 μ P, air is 922 μ P, water is 8937 μ P), the effective heat loss through convection of easy formation, the torrid zone produced when LED light-emitting section 5 is worked are walked, and ensure the normal work of LED light-emitting section 5.The flexible light-emitting section 5 of LED is by inert gas shieldings such as helium and vacuum seal; completely not by the impact of the steam in surrounding environment etc.; make LED obtain the life-span longer, for small-power with U-shaped filament LED bulb, be such as less than 3W lamp, also can with other inert gas or nitrogen etc.
Shown in Fig. 2, light-emitting section 5 includes a flexible substrate 11 (metal substrate or other flexible material substrate), serial or parallel connection or the multiple LED chip 12 of connection in series-parallel on the substrate 11, LED chip 12 and substrate 11 are transparent chips, wherein a part is the chip of blue light-emitting, another part is the chip emitted white light, and is connected between multiple LED chip 12 by connecting line b13, and the two ends of substrate 11 are LED electrical pole lead-out wire 14 and fixture 15 thereof.The end face 16 towards LED chip 12 of electrode outlet line 14 is exposed, connect for connecting line c17 and chip electrical.Substrate 11 is made up of flexible metal or other flexible material, LED chip 12 and the surrounding of substrate 11 scribble layer of transparent colloid and fluorescent bisque, LED light-emitting section 5 also can be used for manufacturing the LED bulb of high color rendering index (CRI) with U-shaped filament, also can use as a kind of light-emitting component separately.
As shown in Figure 3, LED chip 12 is fixing on the substrate 11 by transparent adhesive tape 18, and transparent adhesive tape 18 is epoxy resin, modified resin or silica gel.LED chip 12 has layer of transparent colloid 19 with the surrounding of substrate 11, the uniform fluorescent bisque of one deck is had outside transparent colloid 19, fluorescent powder can LED chip 12 the blue light components sent out be transformed into gold-tinted, gold-tinted and some blue light and white light, can obtain the white light of different high color rendering index (CRI).Change the number ratio of white and blue chip, namely change in vain and the ratio of the luminous flux of blue light, the colour rendering index of the luminescence of light-emitting section 5 can be changed, also can obtain the white light of high color rendering index (CRI).Transparent colloid 19 is the transparent colloid of high rate high index of refraction, such as silica gel, plastics or epoxy resin.Fluorescent bisque is mixed by fluorescent powder and transparent colloid.LED chip 12 has enough quantity, make the total driving voltage after all LED light-emitting section 5 serial or parallel connections or parallel connection close to outer alternating current or outer DC supply voltage, form the high-voltage LED light-emitting section that LED chip 360 degree is luminous, driver is without the need to transformer, and circuit is simple, efficiency is high, cost is low.The lamp socket that directly can be connected with baking box of plastic cement material.Lamp holder 7 is the E12 of pottery or other material, E12S, E14, E14S, B15, baking box bubble refrigerator bubble special lamp cap, the lamp holders such as G9.Filament is " U " shape, and the bulb can putting into small size uses.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. with a LED bulb for U-shaped filament, it is characterized in that, comprising:
Cell-shell (1), is provided with lamp holder (7) in described cell-shell (1) upper end;
Described cell-shell (1) inside is provided with stem stem (4), described stem stem (4) is welded with light-emitting section (5), described stem stem (4) top is provided with blast pipe (2), sealing by fusing is provided with on described blast pipe (2) top, two electric lead-out wires (3) are located at described stem stem (4) both sides, one end of described electric lead-out wire (3) is welded with described light-emitting section (5), and the other end is connected with the driver (6) of described lamp holder (7) inside;
Described light-emitting section (5) comprises substrate (11), is provided with multiple LED chip (12) on the substrate.
2. the LED bulb with U-shaped filament according to claim 1, is characterized in that: connect for serial or parallel connection or string between multiple described LED chip (12).
3. the LED bulb with U-shaped filament according to claim 1, is characterized in that: described light-emitting section (5) is U-shaped or circular or hemispherical.
4. the LED bulb with U-shaped filament according to claim 1, is characterized in that: the projection on described lamp holder (7) top is connected with connecting line a (9).
5. the LED bulb with U-shaped filament according to claim 1, it is characterized in that: described cell-shell (1) inside is cavity (10), in described cavity (10), punching has the hydrogen of high thermal conductivity or nitrogen or helium or argon gas or neon, and its pressure is at room temperature 50-15Torr.
6. the LED bulb with U-shaped filament according to claim 5, is characterized in that: described transparent bulb case (1) A-type or G-type, R-type or PAR-type or T-type, ST type or candle type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520996004.XU CN205174069U (en) | 2015-12-03 | 2015-12-03 | LED bulb with U -shaped filament |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520996004.XU CN205174069U (en) | 2015-12-03 | 2015-12-03 | LED bulb with U -shaped filament |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205174069U true CN205174069U (en) | 2016-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520996004.XU Expired - Fee Related CN205174069U (en) | 2015-12-03 | 2015-12-03 | LED bulb with U -shaped filament |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205174069U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927950A (en) * | 2016-06-01 | 2016-09-07 | 山东晶泰星光电科技有限公司 | LED filament with thermal radiation material and LED filament bulb |
| CN107166175A (en) * | 2017-02-27 | 2017-09-15 | 漳州立达信光电子科技有限公司 | A kind of stretchable light-emitting device and preparation method thereof |
-
2015
- 2015-12-03 CN CN201520996004.XU patent/CN205174069U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105927950A (en) * | 2016-06-01 | 2016-09-07 | 山东晶泰星光电科技有限公司 | LED filament with thermal radiation material and LED filament bulb |
| CN107166175A (en) * | 2017-02-27 | 2017-09-15 | 漳州立达信光电子科技有限公司 | A kind of stretchable light-emitting device and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160420 Termination date: 20201203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |