CN108167670B - LED lamp - Google Patents
LED lamp Download PDFInfo
- Publication number
- CN108167670B CN108167670B CN201810141019.6A CN201810141019A CN108167670B CN 108167670 B CN108167670 B CN 108167670B CN 201810141019 A CN201810141019 A CN 201810141019A CN 108167670 B CN108167670 B CN 108167670B
- Authority
- CN
- China
- Prior art keywords
- light source
- led
- led lamp
- source plate
- led light
- 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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- 239000011324 bead Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000005452 bending Methods 0.000 claims description 4
- 239000004698 Polyethylene Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 2
- 150000002430 hydrocarbons Chemical class 0.000 claims description 2
- 238000009423 ventilation Methods 0.000 claims description 2
- 230000017525 heat dissipation Effects 0.000 abstract description 12
- 230000004907 flux Effects 0.000 abstract description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 10
- 229910052782 aluminium Inorganic materials 0.000 description 10
- 239000004033 plastic Substances 0.000 description 8
- 229920003023 plastic Polymers 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000011049 pearl Substances 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002654 heat shrinkable material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000009537 plain noodles Nutrition 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
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
- F21K9/20—Light sources comprising attachment means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
- F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
- F21V19/0035—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources the fastening means being capable of simultaneously attaching of an other part, e.g. a housing portion or an optical component
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2107/00—Light sources with three-dimensionally disposed light-generating elements
- F21Y2107/30—Light sources with three-dimensionally disposed light-generating elements on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
The invention relates to an LED lamp, which comprises a lamp cap, a driving circuit, a hollow cylindrical LED light source plate, an upper shell and a lower shell, wherein a plurality of LED lamp beads are arranged on the outer wall of the cylindrical LED light source plate, the lower shell is connected with the lamp cap, the lower end part of the LED light source plate is connected with the lower shell, the upper shell is connected with the upper end part of the LED light source plate, and the LED lamp also comprises a heat-shrinkable sleeve made of a light-transmitting material, and the heat-shrinkable sleeve is tightly attached to the light-emitting surface of the LED lamp beads on the LED light source plate to serve as a light-transmitting bulb of the LED lamp; the LED lamp directly utilizes the surface of the LED light source plate to effectively dissipate heat, and the proportion of the heat dissipation surface in the whole lamp surface can be greatly increased, so that the rated power and luminous flux of the LED lamp with various determined sizes can be greatly increased.
Description
Technical Field
The invention relates to the field of illumination, in particular to an LED lamp with good heat dissipation.
Background
At present, the energy conservation and the service life of the LED lighting lamp are obviously superior to those of the traditional incandescent lamp and the energy-saving lamp, so the development trend of green lighting of LED lighting is on the way of being rolled up worldwide, wherein the maximum sales amount is that of the LED bulb lamp, and the LED bulb lamp is produced in 2017 in China for about 20 hundred million.
The basic structure of the existing LED bulb lamp consists of a lamp cap, a driving circuit, an LED light source plate and a shell, wherein the shell comprises a plastic-coated aluminum shell for heat dissipation and a light-transmitting bulb shell for light emission, and the light-transmitting bulb shell is made of plastic or glass; the LED light source plate is formed by mounting a patch type LED lamp bead on an aluminum-based printed circuit board, and heat generated when the LED lamp bead emits light is transferred to the aluminum substrate and then transferred to the plastic-coated aluminum shell until the heat is dissipated to the outer surface of the plastic-coated aluminum shell. The main disadvantages of this structure are two: firstly, the whole light source plate is not contacted with outside flowing air and cannot effectively dissipate heat, the effective heat dissipation surface is only the outer surface of the plastic-coated aluminum shell, and the area of the effective heat dissipation surface is only about half of the outer surface of the whole lamp, so that the maximum power of the LED bulb lamp with the determined size and volume is limited; and secondly, the light-tight plastic-coated aluminum shell blocks a large part of light, so that the light distribution curve of the lamp is poor, and an excessively obvious dark area appears during illumination.
Disclosure of Invention
The invention aims to provide an LED lamp, which directly utilizes the surface of an LED light source plate to effectively dissipate heat, avoids a light-shielding plastic-coated aluminum shell, and simultaneously removes a light-transmitting bulb shell made of plastic or glass of a bulb lamp, so that the proportion of the heat dissipation surface in the whole lamp surface can be greatly increased, and the rated power and luminous flux of the LED lamp with various determined sizes can be greatly increased.
The specific scheme is as follows:
The utility model provides a LED lamp, includes lamp holder, drive circuit, hollow tube-shape LED light source board, goes up casing and lower casing, has a plurality of LED lamp pearls on the outer wall of tube-shape LED light source board, lower casing is connected with the lamp holder, the lower tip and the lower casing of LED light source board are connected, go up the upper end connection of casing and LED light source board, still include a heat shrink sleeve pipe of being made by printing opacity material, heat shrink sleeve pipe hugs closely on the play plain noodles of LED lamp pearls on the LED light source board to as the printing opacity bulb of this LED lamp.
Further, the upper and lower housings are provided with ventilation holes for forming air convection.
Further, the heat shrink sleeve is made of polyethylene hydrocarbon.
Further, the cylindrical LED light source plate is formed by bending one LED light source plate.
Further, the upper end of the tubular LED light source plate is further provided with a plurality of inwards bent lug plates, the lug plates are uniformly arranged around the axis of the tubular LED light source plate, and each lug plate is provided with at least one LED lamp bead.
Further, the upper shell is cylindrical, the upper end part of the upper shell is provided with a flange which extends outwards, the upper shell is sleeved in the LED light source plate and limited by the flange, and the flange of the upper shell is wrapped by the heat shrinkage sleeve.
Compared with the prior art, the LED lamp provided by the invention has the following advantages: according to the LED lamp provided by the invention, the front surface and the back surface of the LED light source plate can be contacted with flowing air to further effectively dissipate heat, so that the heat dissipation area of the LED lamp is doubled compared with that of a conventional bulb lamp with a corresponding size, and the heat dissipation effect is excellent, therefore, under the condition that the external dimensions are similar, the rated power and luminous flux of the LED lamp can be obtained higher than those of the conventional LED bulb lamp; or when the rated power and the luminous flux are the same, the volume of the LED lamp can be reduced to less than half, so that the application flexibility of the LED lamp is greatly improved.
Drawings
Fig. 1 shows a schematic view of an LED lamp.
Fig. 2 shows a schematic view of a cylindrical LED light source plate.
Detailed Description
For further illustration of the various embodiments, the invention is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present invention. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.
The invention will now be further described with reference to the drawings and detailed description.
As shown in fig. 1 and 2, the invention provides an LED lamp, which comprises a lamp cap 1, a driving circuit 2, a hollow cylindrical LED light source board 4, an upper shell 30 and a lower shell 32, wherein a plurality of LED lamp beads 5 are arranged on the outer wall of the cylindrical LED light source board 4, the upper and lower directions in the embodiment are based on the lamp cap, the position close to the lamp cap is lower, and the position far from the lamp cap is upper. The lower shell 32 is connected with the lamp cap 1, the lower end of the LED light source board 4 is connected with the lower shell 32, the upper shell 30 is connected in the upper end of the LED light source board 4, and the LED lamp further comprises a heat shrinkage sleeve 6 made of a light-transmitting material, and the heat shrinkage sleeve 6 is tightly attached to the light-emitting surface of the LED lamp beads 5 on the LED light source board 4 to serve as a light-transmitting bulb of the LED lamp.
The heat shrinkage sleeve 6 has three functions in the LED lamp, namely, the heat shrinkage sleeve is used as a light-transmitting bulb of the LED lamp to protect the LED lamp beads on the LED light source plate 4, so that the LED lamp beads are isolated from the outside, a consumer cannot touch an electrified LED light source plate during use, the safety is ensured, dust or other particles can be isolated, the LED lamp beads cannot be influenced, and the service life is prolonged; secondly, the LED light source plate 4 is fixed, so that the shape of the LED light source plate and the stability between the LED light source plate and the shell are maintained; and thirdly, the heat dissipation effect of the LED lamp beads is improved, and as the heat shrink sleeve is tightly attached to the light emitting surface of the LED lamp beads 5 on the LED light source plate 4, part of heat generated when the LED lamp beads emit light can be transferred to the heat shrink sleeve and then emitted to the environment through the heat shrink sleeve.
Because the heat-shrinkable sleeve is tightly attached to the light emitting surface of the LED lamp beads 5 on the LED light source plate 4, the heat-shrinkable sleeve must have a certain high temperature resistance (for example, 120-150 degrees), and in order to ensure the light efficiency, the heat-shrinkable sleeve must also have a high light transmittance, and a heat-shrinkable material having both high light transmittance and high temperature resistance can be used to prepare the heat-shrinkable sleeve, wherein the preferred material is polyethylene.
In order to enable the inner surface of the LED light source board 4, on which the LED beads are not mounted, to be in contact with flowing air, referring to fig. 1, the upper and lower cases 30 and 32 each have a vent 300 thereon for forming air convection. Cool air outside the LED lamp can flow into the LED light source plate from the vent hole of the lower housing 32, and as the LED lamp beads emit light, the temperature inside the LED light source plate rises, the cool air flowing into the housing absorbs heat to become hot air, the hot air rises upwards from the air convection channel, and flows out of the vent hole of the upper housing, meanwhile, cool air outside the lamp is supplemented into the lamp from the vent hole of the lower housing, so that cold air convection is formed, heat in the housing is rapidly taken out, and heat dissipation efficiency is improved.
Referring to fig. 1 and 2, the cylindrical LED light source board 4 is formed by bending an LED light source board, wherein the LED light source board may be an aluminum-based, iron-based or copper-based printed circuit board, and preferably an aluminum-based or copper-based printed circuit board with good heat dissipation.
Referring to fig. 2, the upper end portion of the cylindrical LED light source board 4 further has a plurality of inwardly bent ear boards 40, the plurality of ear boards 40 are uniformly arranged around the axis of the cylindrical LED light source board 4, each ear board 40 is provided with at least one LED lamp bead 5 to increase the light emitting angle of the LED lamp, where the angle of bending the ear boards 40 can be adjusted according to the actual requirement, and is generally between 30-60 degrees.
Referring to fig. 1, the upper housing 30 is cylindrical, the upper end of the upper housing 30 has an outwardly protruding flange 302, the upper housing 30 is sleeved in the LED light source board 4 and is limited by the flange 302, and the heat shrink sleeve 6 wraps the flange 302 of the upper housing. When the LED lamp is assembled, the upper shell 30 is sleeved in the LED light source plate 4, the flange 302 of the upper shell is wrapped after the heat shrinkage sleeve 6 is subjected to heat shrinkage, the vent 300 is reserved, the fixing of the upper shell can be completed, and the whole assembly process is very simple.
As shown in the following table, the following table is a test result of an LED lamp sample made of the structure of the LED lamp provided in the present invention.
From the above test results, it can be seen that, on the basis of the similar size to the existing LED bulb lamp, the maximum luminous flux achieved by the structure of the LED lamp provided by the present invention is far greater than that of the conventional LED bulb lamp (the maximum luminous flux of the conventional a 60-sized LED bulb lamp is generally 1600-1800 lm), and the light efficiency is also higher than that of the conventional LED lamp. In addition, the luminous flux in the stable state is only about 8.5% lower than the initial luminous flux, which proves that the LED lamp has good heat dissipation effect.
While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. An LED lamp, characterized in that: the LED lamp comprises a lamp cap, a driving circuit, a hollow cylindrical LED light source plate, an upper shell and a lower shell, wherein a plurality of LED lamp beads are arranged on the outer wall of the cylindrical LED light source plate, the lower shell is connected with the lamp cap, the lower end part of the LED light source plate is connected with the lower shell, the upper shell is connected with the upper end part of the LED light source plate, and the LED lamp further comprises a heat shrinkage sleeve made of a light-transmitting material, and the heat shrinkage sleeve is tightly attached to the light-emitting surface of the LED lamp beads on the LED light source plate to serve as a light-transmitting bulb of the LED lamp; the upper shell is cylindrical, the upper end part of the upper shell is provided with a flange which extends outwards, the upper shell is sleeved in the LED light source plate and limited by the flange, and the flange of the upper shell is wrapped by the heat shrinkage sleeve; the upper end of the cylindrical LED light source plate is further provided with a plurality of inwards bent lug plates, the lug plates are uniformly arranged around the axis of the cylindrical LED light source plate, and each lug plate is provided with at least one LED lamp bead.
2. The LED lamp of claim 1, wherein: the upper and lower housings have ventilation holes for forming air convection.
3. The LED lamp of claim 1, wherein: the heat shrink sleeve is made of polyethylene hydrocarbons.
4. The LED lamp of claim 1, wherein: the cylindrical LED light source plate is formed by bending an LED light source plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141019.6A CN108167670B (en) | 2018-02-11 | 2018-02-11 | LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810141019.6A CN108167670B (en) | 2018-02-11 | 2018-02-11 | LED lamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108167670A CN108167670A (en) | 2018-06-15 |
| CN108167670B true CN108167670B (en) | 2024-07-26 |
Family
ID=62514137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810141019.6A Active CN108167670B (en) | 2018-02-11 | 2018-02-11 | LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108167670B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108747266B (en) * | 2018-06-28 | 2024-01-23 | 南京晨光集团有限责任公司 | Surface protection device and method for shaft parts with complex shapes |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202013105372U1 (en) * | 2013-11-26 | 2013-12-03 | Lac Opto Electronics Technology Co., Ltd. | New LED lamp |
| CN204243033U (en) * | 2014-11-11 | 2015-04-01 | 广州市鸿利光电股份有限公司 | A kind of LED filament |
| CN207814965U (en) * | 2018-02-11 | 2018-09-04 | 厦门银旭工贸有限公司 | A kind of LED light |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203384741U (en) * | 2013-08-23 | 2014-01-08 | 佛山市崇达照明电器有限公司 | Flexible LED light source lamp |
| JP5975303B2 (en) * | 2014-02-28 | 2016-08-23 | 岩崎電気株式会社 | LED lamp and heat sink used therefor |
| CN206439692U (en) * | 2016-08-29 | 2017-08-25 | 飞浦防爆电器有限公司 | A kind of LED anti-explosion lamp of use multiple spot light distributing system |
| CN206600631U (en) * | 2017-02-28 | 2017-10-31 | 漳州立达信光电子科技有限公司 | A kind of LED lamp with heat dissipation structure |
-
2018
- 2018-02-11 CN CN201810141019.6A patent/CN108167670B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202013105372U1 (en) * | 2013-11-26 | 2013-12-03 | Lac Opto Electronics Technology Co., Ltd. | New LED lamp |
| CN204243033U (en) * | 2014-11-11 | 2015-04-01 | 广州市鸿利光电股份有限公司 | A kind of LED filament |
| CN207814965U (en) * | 2018-02-11 | 2018-09-04 | 厦门银旭工贸有限公司 | A kind of LED light |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108167670A (en) | 2018-06-15 |
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