CN103836414A - LED lamp with improved heat dissipation structure - Google Patents
LED lamp with improved heat dissipation structure Download PDFInfo
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- CN103836414A CN103836414A CN201410047437.0A CN201410047437A CN103836414A CN 103836414 A CN103836414 A CN 103836414A CN 201410047437 A CN201410047437 A CN 201410047437A CN 103836414 A CN103836414 A CN 103836414A
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- heat dissipation
- thermal component
- led
- cup
- led assembly
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Abstract
The invention provides an LED lamp with an improved heat dissipation structure. The LED lamp comprises a lamp cap, a plastic shell, an LED assembly, a heat dissipation component supporting the LED assembly, a glass shell and a power supply module supplying power to the LED assembly. The LED lamp is characterized in that the heat dissipation component is arranged inside the glass shell, a cavity is formed between the heat dissipation component and the glass shell, the heat dissipation component is a cup-shaped body, the side wall of the heat dissipation component is in a stepped shape, the LED assembly is attached to the bottom surfaces of all steps of the heat dissipation component through a heat conduction substrate, side faces of all the steps of the heat dissipation component are provided with through holes, the power supply module supplying power to the LED assembly is arranged in the plastic shell, the plastic shell is provided with a plurality of openings, a part of the openings are directly communicated with an inner cavity of the glass shell, and the other openings are communicated with a cup rabbet of the cup-shaped heat dissipation component.
Description
Technical field
The present invention relates to the structure of bulb, specifically refer to a kind of LED lamp that improves radiator structure.
Background technology
Traditional incandescent lamp bulb is mainly made up of several parts such as filament, glass shell, lamp holders.Incandescent lamp bulb is to make according to the fuel factor principle of electric current, and bulb connects after rated voltage, and electric current is heated to incandescent state by filament, thereby heating luminous.The tungsten that filament is large by resistivity, fusing point is high is made, and tungsten is a kind of metallic element, oxidizable, and temperature is higher, is oxidized sooner, and for preventing tungsten oxidation at high temperature, bulb is all evacuated.In addition, tungsten can also produce distillation and the phenomenon of sublimating, and therefore 60 watts of above bulbs are filled with the gas such as nitrogen, argon, can hinder distillation at high temperature.Because the filament temperature in when work is very high, most energy has slatterned with the form of infra-red radiation, and electric light transformation efficiency is lower, and because filament temperature is very high, evaporate also very fast, so the life-span also large shortening, greatly about about 1000 hours.
LED light emitting diode is to be made up of several layers of very thin doped semiconductor materials, the electronics that one deck band is excessive, for want of electronics and form " hole " of positively charged of another layer, in the time having electric current to pass through, electronics and hole mutually combine and give off energy, thereby give off radiance.LED bulb is mainly to adopt LED to replace the filament of incandescent lamp as light source.While work due to LED, distribute heat is larger, particularly works for high-power, multiple LED simultaneously, and its caloric value is larger, must dispel the heat for LED lamp envelope design heat abstractor specially.The heat abstractor of existing LED bulb is one to be connected the radiating seat between lamp holder and cell-shell, this radiating seat generally adopts the aluminium of high thermal conductivity coefficient to make, comprise the cylindrical shell that two ends connect, cylinder body outer wall is provided with into the fin of radial distribution, and the heat that LED sends is distributed by this radiating seat.Owing to there being multiple LED to be arranged on radiating seat with planar fashion in LED bulb, the heat that the LED of mid portion produces is difficult to distribute, and therefore radiating effect is bad.In addition, this radiating seat is comparatively heavy with respect to glass shell, easily makes glass shell fragmentation, has certain potential safety hazard.In addition, the radiating seat that high-capacity LED lamp uses is bulky, is more not suitable for being built in glass bulb cavity using.
Summary of the invention
The invention provides a kind of LED lamp that improves radiator structure, its main purpose is the LED thermal component of built-in efficiently radiates heat in the situation that not changing traditional glass bulb or the existing size of spot lamp cup, overcome the bad problem of existing LED bulb heat radiation, realize the object that life size glass bulb or spot lamp cup can install the LED lamp source of higher light efficiency, make conventional bulb light fixture and the projection lamp light fitting needn't be because using the design of LED lamp source update all instead.
The present invention adopts following technical scheme:
A kind of LED lamp that improves radiator structure, comprise lamp holder, plastic casing, LED assembly, the thermal component of carrying LED assembly, glass shell and be the power module of LED assembly power supply, it is characterized in that: described thermal component is built in described glass shell, between this thermal component and described glass shell, form a cavity, described thermal component is goblet, its sidewall is step-like, LED assembly is attached at the bottom surface of each layer of step of thermal component by heat-conducting substrate, the side of each layer of step of thermal component is provided with through hole, the power module of LED assembly power supply is arranged in plastic casing, on plastic casing, be provided with multiple openings, part opening is directly communicated with glass shell inner chamber body, the rim of a cup of this cup-shaped thermal component of all the other open communication.
The rim of a cup of this cup-shaped thermal component is towards lamp holder one side.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one.
The specific embodiment
The specific embodiment of the present invention is described with reference to the accompanying drawings.
A kind of LED lamp, with reference to Fig. 1, comprises lamp holder 1, plastic housing 2, glass shell 3, thermal component 4, LED assembly 5 and the power module of powering for LED assembly 5, not shown this power module.Plastic housing 2 is connected between lamp holder 1 and glass shell 3, and above-mentioned power module can be arranged in this plastic housing 2, powers for each LED assembly 5, and plastic housing 2 is provided with multiple openings 20.Thermal component 4 is built in this glass shell 3, and each LED assembly 5 is sticked on thermal component 4 by heat-conducting substrate 51, forms a cavity 30 between thermal component 4 and described glass shell 3.
With reference to Fig. 1, this thermal component 4 is goblet, and its sidewall is step-like, and the rim of a cup of this cup-shaped thermal component 4 is towards a side of lamp holder 1, and this thermal component 4 is towards glass shell 3 one side projections.Each LED assembly 5 is arranged in the bottom surface of each layer of step of this cup-shaped thermal component 4, and each layer of step side of cup-shaped thermal component 4 is provided with through hole 6.Part opening 20 is directly communicated with glass shell 3 inner chamber body 30, and all the other openings 20 are communicated with the rim of a cup of this cup-shaped thermal component 4.
When each LED assembly 5 is luminous, the air of its heat distributing in thermal component 4 heats thermal component 4,20 discharges of opening that air warp after heating is communicated with the rim of a cup of cup-shaped thermal component 4, and the interior formation negative pressure of thermal component 4, cause cool ambient air through entering cavity 30 with the direct open communication 20 of glass shell 3 inner chamber body 30 and entering in thermal component 4 through through hole 6, form thus airflow circulating, reach radiating effect.
Above are only the specific embodiment of the present invention, but design concept of the present invention is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should belong to the behavior of invading protection domain of the present invention.
Claims (2)
1. one kind is improved the LED lamp of radiator structure, comprise lamp holder, plastic casing, LED assembly, the thermal component of carrying LED assembly, glass shell and be the power module of LED assembly power supply, it is characterized in that: described thermal component is built in described glass shell, between this thermal component and described glass shell, form a cavity, described thermal component is goblet, its sidewall is step-like, LED assembly is attached at the bottom surface of each layer of step of thermal component by heat-conducting substrate, the side of each layer of step of thermal component is provided with through hole, the power module of LED assembly power supply is arranged in plastic casing, on plastic casing, be provided with multiple openings, part opening is directly communicated with glass shell inner chamber body, the rim of a cup of this cup-shaped thermal component of all the other open communication.
2. a kind of LED lamp that improves radiator structure as claimed in claim 1, is characterized in that: the rim of a cup of described cup-shaped thermal component is towards lamp holder one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047437.0A CN103836414A (en) | 2014-02-11 | 2014-02-11 | LED lamp with improved heat dissipation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047437.0A CN103836414A (en) | 2014-02-11 | 2014-02-11 | LED lamp with improved heat dissipation structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103836414A true CN103836414A (en) | 2014-06-04 |
Family
ID=50800179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410047437.0A Pending CN103836414A (en) | 2014-02-11 | 2014-02-11 | LED lamp with improved heat dissipation structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103836414A (en) |
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2014
- 2014-02-11 CN CN201410047437.0A patent/CN103836414A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140604 |