CN104033768A - Light-emitting diode (LED) illuminating lamp with radiating structure - Google Patents

Light-emitting diode (LED) illuminating lamp with radiating structure Download PDF

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Publication number
CN104033768A
CN104033768A CN201410276443.3A CN201410276443A CN104033768A CN 104033768 A CN104033768 A CN 104033768A CN 201410276443 A CN201410276443 A CN 201410276443A CN 104033768 A CN104033768 A CN 104033768A
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CN
China
Prior art keywords
led
illuminating lamp
mount pad
plastic casing
lamp
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.)
Pending
Application number
CN201410276443.3A
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Chinese (zh)
Inventor
徐志明
高娟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU HUAXING ELECTRONIC CO Ltd
Original Assignee
JIANGSU HUAXING ELECTRONIC CO Ltd
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by JIANGSU HUAXING ELECTRONIC CO Ltd filed Critical JIANGSU HUAXING ELECTRONIC CO Ltd
Priority to CN201410276443.3A priority Critical patent/CN104033768A/en
Publication of CN104033768A publication Critical patent/CN104033768A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a light-emitting diode (LED) illuminating lamp with a radiating structure. The LED illuminating lamp comprises a bulb, an LED lamp cap and a plugging lamp cap. The LED lamp cap comprises LED chips and a chip mounting plate. The plugging lamp cap is in line connection with the LED chips respectively. The radiating structure comprises a plastic shell and a metal radiating element. The metal radiating element is mounted in the plastic shell. An upper opening and a lower opening are respectively formed in two ends of the plastic shell with a hollow inner portion. One end of the plugging lamp cap is fixed on the upper opening of the plastic shell. The metal radiating element is connected with the lower opening or a position near the lower opening of the plastic shell. Longitudinal radiating passages are formed between the plastic shell and the metal radiating element. With the radiating passages, cross-ventilation is achieved with heat flowing constantly. The plastic shell can be molded by extrusion directly and directly connected with the plugging lamp cap, thus mounting process is simplified, and safety is high without electric leakage.

Description

There is the LED illuminating lamp of radiator structure
Technical field
The present invention relates to LED lighting field, particularly a kind of LED illuminating lamp with radiator structure.
Background technology
At present, LED light source is long, pollution-free with the life-span, just progressively replace incandescent and fluorescent light of light efficiency high, so there is the LED bulb as light source with LED.The major issue that but the heat dissipation problem of LED light source is LED bulb need to be solved, the quality of radiating effect is directly connected to illumination effect and the life-span of bulb.
The heat of LED light source concentrates on the little chip installing plate of size, can make bulb internal temperature more and more higher, and LED is aging in acceleration, reduction of service life.For a heat radiation difficult problem for LED bulb, on market, cooling measure is multifarious, causes the profile of LED illuminating lamp also varied.Wherein, most of radiator is all to make tubulose by metallic aluminium, heat dissipation metal structure is installed in the middle of tube-like envelope, LED chip installing plate is attached on interior metal radiator structure, such design need to cut into Len req by tubular metal shell, then carry out expander and form taper tube, finally circuit board mount pad is squeezed in taper tube, relatively very complicated is installed, and for attractive in appearance, the outer surface of metal shell all applies one deck coating conventionally, and face coat makes radiating effect undesirable, has affected the service life of LED bulb.On the other hand, because tube-like envelope is metal, belong to conductive material, need to a plastic partition be installed between screw socket and radiator disseats, this structure installation procedure complexity, and if extraneous air moister, LED bulb work heat radiation forms water vapour, water vapour can make metal shell leak electricity, and security is not high.
Therefore, how realizing a kind of LED illuminating lamp of simple in structure and high efficiency and heat radiation and good insulating, is technical problem urgently to be resolved hurrily in the industry.
Summary of the invention
The technical problem to be solved in the present invention is: manufacture very complicated in order to overcome existing LED illuminating lamp, radiating effect is undesirable, and the deficiency that security is not high the invention provides a kind of LED illuminating lamp with radiator structure.
The technical solution adopted for the present invention to solve the technical problems is: a kind of LED illuminating lamp with radiator structure, comprises bulb, LED lamp holder and lamp bayonet base;
Described radiator structure comprises plastic casing and the metal heat sink that is arranged on described plastic casing inside, and described plastic casing two ends have respectively upper shed and under shed, inner hollow;
Described lamp bayonet base one end is fixed on the upper shed of described plastic casing, and described under shed or the position that approaches under shed are connected with described metal heat sink, are formed with longitudinal heat dissipation channel between described plastic casing and metal heat sink.
Heat dissipation channel of the present invention is discharged hot-air, and and then cold air supplements, new mobile come carry out exchange heat compared with cold air and internal heat air, thereby make plastic casing inner air formation convection current, constantly take away heat.
Shell adopts plastic material, can direct extrusion molding, and plastic casing is directly connected with lamp bayonet base, and installation procedure is simplified relatively, and can not leak electricity, safe.
And radiating piece is made to standard component, and adopt different plastic casings to match with it, can save manufacturing cost, enhance productivity.
The import of described heat dissipation channel and outlet lay respectively at the two ends of plastic casing.Because heat transmits out from LED lamp holder, near the plastic casing lower opening heat of aggregation air of LED lamp holder, hot-air with heat dissipation channel from lower to upper, is discharged from plastic casing upper end, and then cold air is supplementary from plastic casing lower end, forms cross-ventilation heat radiation.
Described LED lamp holder comprises LED chip and chip installing plate, described lamp bayonet base and described LED chip connection, described metal heat sink comprises mount pad, described chip installing plate is arranged on the upper surface of described mount pad, the lower surface of described mount pad is provided with some thermal columns, and the mount pad of described metal heat sink and described plastic casing are inner fixing.This heat spreader structure is simple, easy to prepare and radiating efficiency is high, be beneficial to from different plastic casings and match, and thermal column can also play location and supporting role.
The side opening of described mount pad is provided with groove.Described groove and plastic casing match and form the inlet of cold air of heat dissipation channel.
On described mount pad, be provided with the through hole that runs through upper surface and lower surface, described through hole is the inlet of cold air of heat dissipation channel.
The upper end of described plastic casing is provided with the louvre around described upper shed, forms the hot air outlet of heat dissipation channel.
Described mount pad and thermal column can be one-body molded, and for example cold forging is one-body molded.
On the lower surface of described mount pad, can be provided with jack, described thermal column one end is fixed in jack.
Be arranged in described plastic casing for the ease of metal heat sink, described thermal column is near the edge setting of the lower surface of described mount pad, and the outward flange of thermal column and the outward flange of mount pad have an intersegmental distance.
In order effectively to utilize space, described lamp bayonet base is by circuit board and described LED lamp holder connection, and described circuit board is arranged on described plastic casing inside.
The invention has the beneficial effects as follows, the LED illuminating lamp with radiator structure of the present invention, heat dissipation channel is discharged hot-air, and then cold air supplements, what new movement was come carries out exchange heat compared with cold air and internal heat air, thereby makes plastic casing inner air form convection current, constantly takes away heat; Shell adopts plastic material, can direct extrusion molding, and the cut-out operation of dispense tube section bar; Plastic casing is directly connected with lamp bayonet base, and installation procedure is simplified relatively, and leakproof, safe; Radiating piece is made to standard component, adopt different plastic casings to match with it, can save manufacturing cost, enhance productivity.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of LED illuminating lamp of the present invention.
Fig. 2 is the explosive view of LED illuminating lamp embodiment 1 of the present invention.
Fig. 3 is the explosive view of LED illuminating lamp embodiment 1 of the present invention.
Fig. 4 is the metal heat sink of LED illuminating lamp embodiment 1 of the present invention and the structural representation of LED lamp holder.
Fig. 5 is the explosive view of the metal heat sink of LED illuminating lamp embodiment 1 of the present invention.
Fig. 6 is the structural representation after thermal column and the mount pad installation in Fig. 5.
Fig. 7 is the structural representation of the plastic casing of LED illuminating lamp embodiment 1 of the present invention.
Fig. 8 is the structural representation of the plastic casing of LED illuminating lamp embodiment 1 of the present invention.
Fig. 9 is the structural representation after the plastic casing of LED illuminating lamp embodiment 1 of the present invention and metal heat sink are installed.
Figure 10 is the structural representation after the plastic casing of LED illuminating lamp embodiment 1 of the present invention and metal heat sink are installed.
Figure 11 is the schematic diagram of the another kind of structure of the metal heat sink of LED illuminating lamp of the present invention.
Figure 12 is the structural representation after the plastic casing of LED illuminating lamp embodiment 2 of the present invention and metal heat sink are installed.
In figure 1, plastic casing, the upper end of 1a, plastic casing, the lower end of 1b, plastic casing, 1-1, upper shed, 1-2, under shed, 1-3, louvre, 2, metal heat sink, 2-1, mount pad, the upper surface of 2-1a, mount pad, the lower surface of 2-1b, mount pad, the side of 2-1c, mount pad, 2-1-1a, groove, 2-1-1b, through hole, 2-1-2, jack, 2-2, thermal column, 3, bulb, 4, LED lamp holder, 4-1, LED chip, 4-2, chip installing plate, 5, lamp bayonet base, 6, heat dissipation channel.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present invention is only described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment 1
As shown in Figures 1 to 3, a kind of LED illuminating lamp of the present embodiment, comprises bulb 3, LED lamp holder 4, radiator structure and lamp bayonet base 5, and LED lamp holder 4 comprises LED chip 4-1 and chip installing plate 4-2, is all sealed in described bulb 3; Lamp bayonet base 5 and LED chip 4-1 connection.
Radiator structure comprises plastic casing 1 and the metal heat sink 2 that is arranged on plastic casing 1 inside, and as shown in Fig. 7-10, plastic casing 1 two ends have respectively upper shed 1-1 and under shed 1-2, inner hollow; Lamp bayonet base 5 one end are fixed on the upper shed 1-1 of described plastic casing 1, under shed 1-2 is connected with metal heat sink 2, between plastic casing 1 and metal heat sink 2, be formed with longitudinal heat dissipation channel 6, the import of heat dissipation channel 6 and outlet lay respectively at the two ends of plastic casing 1.
As shown in Fig. 4~6, metal heat sink 2 comprises disc mount pad 2-1, chip installing plate 4-2 is arranged on the upper surface 2-1a of mount pad 2-1, and the lower surface 2-1b of mount pad 2-1 is provided with some thermal column 2-2, and the mount pad 2-1 of metal heat sink 2 and plastic casing 1 are inner fixing.Thermal column 2-2 is near the edge setting of the lower surface 2-1b of described mount pad 2-1, and it is one intersegmental apart from d that the outward flange of the outward flange of thermal column 2-2 and mount pad 2-1 has.In the present embodiment, thermal column 2-2 is cylinder, can be also cuboid as shown in figure 11, can also be other cylinders certainly.
The side 2-1c of mount pad 2-1 offers groove 2-1-1a, and groove 2-1-1a and plastic casing 1 match and form the inlet of cold air of heat dissipation channel 6.The upper end 1a of plastic casing 1 is provided with the louvre 1-3 around upper shed 1-1, forms the hot air outlet of heat dissipation channel 6.After LED illumination lamp ignition a period of time, the heat that LED lamp holder 4 produces makes the air heating in plastic casing 1, plastic casing 1 inside and outside hot and cold air forms cross-ventilation by heat dissipation channel 6, can effectively reduce the temperature of the LED lamp holder 4 in LED illuminating lamp, thereby effectively extend the service life of LED illuminating lamp.Because metal heat sink 2 has good radiating effect, can adopt the LED lamp holder 4 of relatively high power, adopt the normal service life that can also guarantee LED illuminating lamp on the basis of plastic material at plastic casing 1.
The lower surface 2-1b of mount pad 2-1 is provided with jack 2-1-2, and thermal column 2-2 one end is fixed in jack 2-1-2.
Lamp bayonet base 5 can be screw socket or mouth hanging lamp holder, is screw socket in Fig. 1~3.
Lamp bayonet base 5 is by circuit board and described LED lamp holder 4 connections, and described circuit board is arranged on described plastic casing 1 inside, be arranged in parallel with each thermal column 2-2.
Embodiment 2
As shown in figure 12, the present embodiment and embodiment 1 are roughly the same, and difference is, is provided with the through hole 2-1-1b that runs through upper surface 2-1a and lower surface 2-1b on mount pad 2-1, and through hole 2-1-1b is the inlet of cold air of heat dissipation channel 6.Mount pad 2-1 and thermal column 2-2 are formed in one.
Taking above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this invention technological thought, carry out various change and amendment completely.The technical scope of this invention is not limited to the content on description, must determine its technical scope according to claim scope.

Claims (10)

1. there is a LED illuminating lamp for radiator structure, comprise bulb (3), LED lamp holder (4) and lamp bayonet base (5), it is characterized in that:
Described radiator structure comprises plastic casing (1) and is arranged on the inner metal heat sink (2) of described plastic casing (1), and described plastic casing (1) two ends have respectively upper shed (1-1) and under shed (1-2), inner hollow;
Described lamp bayonet base (5) one end is fixed on the upper shed (1-1) of described plastic casing (1), described under shed (1-2) or the position that approaches under shed (1-2) are connected with described metal heat sink (2), between described plastic casing (1) and metal heat sink (2), are formed with longitudinal heat dissipation channel (6).
2. LED illuminating lamp as claimed in claim 1, is characterized in that: the import of described heat dissipation channel (6) and outlet lay respectively at the two ends of plastic casing (1).
3. LED illuminating lamp as claimed in claim 1, it is characterized in that: described LED lamp holder (4) comprises LED chip (4-1) and chip installing plate (4-2), described lamp bayonet base (5) and described LED chip (4-1) connection, described metal heat sink (2) comprises mount pad (2-1), described chip installing plate (4-2) is arranged on the upper surface (2-1a) of described mount pad (2-1), the lower surface (2-1b) of described mount pad (2-1) is provided with some thermal columns (2-2), the mount pad (2-1) of described metal heat sink (2) is inner fixing with described plastic casing (1).
4. LED illuminating lamp as claimed in claim 3, is characterized in that: the side (2-1c) of described mount pad (2-1) offers groove (2-1-1a).
5. LED illuminating lamp as claimed in claim 3, is characterized in that: on described mount pad (2-1), be provided with the through hole (2-1-1b) that runs through upper surface (2-1a) and lower surface (2-1b).
6. the LED illuminating lamp as described in claim 4 or 5, is characterized in that: the upper end (1a) of described plastic casing (1) is provided with the louvre (1-3) around described upper shed (1-1).
7. LED illuminating lamp as claimed in claim 3, is characterized in that: described mount pad (2-1) is formed in one with thermal column (2-2).
8. LED illuminating lamp as claimed in claim 3, is characterized in that: the lower surface (2-1b) of described mount pad (2-1) is provided with jack (2-1-2), and described thermal column (2-2) one end is fixed in jack (2-1-2).
9. LED illuminating lamp as claimed in claim 3, it is characterized in that: described thermal column (2-2) is near the edge setting of the lower surface (2-1b) of described mount pad (2-1), and the outward flange of the outward flange of thermal column (2-2) and mount pad (2-1) has an intersegmental distance.
10. LED illuminating lamp as claimed in claim 3, is characterized in that: described lamp bayonet base (5) is by circuit board and described LED lamp holder (4) connection, and described circuit board is arranged on described plastic casing (1) inside.
CN201410276443.3A 2014-06-19 2014-06-19 Light-emitting diode (LED) illuminating lamp with radiating structure Pending CN104033768A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410276443.3A CN104033768A (en) 2014-06-19 2014-06-19 Light-emitting diode (LED) illuminating lamp with radiating structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410276443.3A CN104033768A (en) 2014-06-19 2014-06-19 Light-emitting diode (LED) illuminating lamp with radiating structure

Publications (1)

Publication Number Publication Date
CN104033768A true CN104033768A (en) 2014-09-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106382605A (en) * 2016-09-18 2017-02-08 厦门通士达照明有限公司 LED illuminating lamp and connecting structure of lamp cap and lamp body of LED illuminating lamp
CN107940261A (en) * 2016-10-11 2018-04-20 王定锋 The all-round smooth LED bulb and production method of a kind of simple structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011070860A (en) * 2009-09-24 2011-04-07 Nakamura Mfg Co Ltd Heat radiator of bulb type led illumination lamp, and method of forming the same
CN202158385U (en) * 2011-06-21 2012-03-07 浙江迈勒斯照明有限公司 LED bulb using chimney effect therein for heat radiation
CN102644867A (en) * 2012-03-13 2012-08-22 广东奥其斯科技有限公司 Thermoelectric separation power type light-emitting diode bulb with high integration and high lighting effect
CN203615293U (en) * 2013-10-29 2014-05-28 东莞市中之光电科技有限公司 Ventilation and heat radiation structure of LED (light emitting diode) bulb lamp
CN203642120U (en) * 2013-11-06 2014-06-11 东莞市汇顺实业有限公司 LED (light-emitting diode) heat radiator
CN203907309U (en) * 2014-06-19 2014-10-29 江苏华兴电子有限公司 LED lighting lamp with heat dissipation structure

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011070860A (en) * 2009-09-24 2011-04-07 Nakamura Mfg Co Ltd Heat radiator of bulb type led illumination lamp, and method of forming the same
CN202158385U (en) * 2011-06-21 2012-03-07 浙江迈勒斯照明有限公司 LED bulb using chimney effect therein for heat radiation
CN102644867A (en) * 2012-03-13 2012-08-22 广东奥其斯科技有限公司 Thermoelectric separation power type light-emitting diode bulb with high integration and high lighting effect
CN203615293U (en) * 2013-10-29 2014-05-28 东莞市中之光电科技有限公司 Ventilation and heat radiation structure of LED (light emitting diode) bulb lamp
CN203642120U (en) * 2013-11-06 2014-06-11 东莞市汇顺实业有限公司 LED (light-emitting diode) heat radiator
CN203907309U (en) * 2014-06-19 2014-10-29 江苏华兴电子有限公司 LED lighting lamp with heat dissipation structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106382605A (en) * 2016-09-18 2017-02-08 厦门通士达照明有限公司 LED illuminating lamp and connecting structure of lamp cap and lamp body of LED illuminating lamp
CN107940261A (en) * 2016-10-11 2018-04-20 王定锋 The all-round smooth LED bulb and production method of a kind of simple structure

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Application publication date: 20140910

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