CN102221189A - Vertical convector radiator and vertical convector radiating down lamp - Google Patents

Vertical convector radiator and vertical convector radiating down lamp Download PDF

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Publication number
CN102221189A
CN102221189A CN2011101559777A CN201110155977A CN102221189A CN 102221189 A CN102221189 A CN 102221189A CN 2011101559777 A CN2011101559777 A CN 2011101559777A CN 201110155977 A CN201110155977 A CN 201110155977A CN 102221189 A CN102221189 A CN 102221189A
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CN
China
Prior art keywords
radiator
vertical
heat
vertical convection
convection
Prior art date
Application number
CN2011101559777A
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Chinese (zh)
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CN102221189B (en
Inventor
唐林涛
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东莞勤上光电股份有限公司
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Priority to CN201110155977.7A priority Critical patent/CN102221189B/en
Publication of CN102221189A publication Critical patent/CN102221189A/en
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Publication of CN102221189B publication Critical patent/CN102221189B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/83Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50Cooling arrangements
    • F21V29/70Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
    • F21V29/74Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING 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
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

Abstract

The invention discloses a vertical convector radiator and comprises a vertical convector radiating down lamp of the vertical convector radiator. The vertical convector radiator comprises light source installation parts and a plurality of heat radiating fins of which the lower ends are connected with the light source installation parts in a heat conducting mode, wherein the vertical convector radiator comprises a plurality of convection passageways which penetrates through and is vertical to the upper surface and the lower surface of the convector radiator. When the vertical convector radiator in the technical scheme adopted operates, the lower end of the heat dissipation rectangular fin continuously heats the neighbouring air and the air rises, simultaneously, the neighbouring cold air can continuously complement to generate convection, thus the vertical convector radiator of the specific implement method can form a higher air velocity field even under the passive voice radiating condition, full heat exchange is generated between the cold air and the heat dissipation rectangular fin surface of the vertical convector radiator, the heat is rapidly take away, thereby avoiding the generation of the heat island effect in the bottom of the radiator, and the heat dissipation capacity is greatly improved.

Description

A kind of vertical convection radiator and a kind of vertical convection heat radiation Down lamp

Technical field

The present invention relates to illumination and heat dissipation technology field, be specifically related to a kind of vertical convection radiator and have a kind of vertical convection heat radiation Down lamp of this radiator.

Background technology

In recent years, the technical development of relevant LED illumination is rapid, and high-power LED illumination has entered into the application stage, but heat dissipation problem always is one of stagnant key problem to be solved of high-power LED illumination.

For the light efficiency level of existing LED, 70% ~ 80% of input electric energy also can be transformed into heat.And because led chip small-sized if it is bad to dispel the heat, then can make the temperature of led chip sharply raise, thereby cause that thermal stress distribution inequality, chip light emitting efficient reduce, fluorescent material swashs problems such as penetrating decrease in efficiency.And the bad temperature rise that also can cause chip to be tied of dispelling the heat is higher, thereby directly has influence on the life-span of the light extraction efficiency and the product of chip.

As everyone knows, the transfer mode of heat has three kinds: (conduction heat transfer), conductive heat transfer (convection heat transfer), radiant heat transfer are transmitted in the heat conduction.In the present high-power LED illumination product, heat from the chip to the air generally through two processes: heat conduction, heat leakage.At first, the heat that chip produces is in heat conducting mode, by gold thread, circuit board, substrate (aluminium base, ceramic base etc.), heat-conducting glue (pad) etc., conducts to radiator (sheet) or heat pipe rapidly.Radiator (sheet) or heat pipe expose in air, by convection current or radiation and air generation heat exchange, thereby heat are lost.As seen, radiator (sheet) or heat pipe are the end interface that LED high-power illumination product and air carry out heat exchange, and their heat exchanger effectiveness how, directly influenced the heat dispersion of product.

The heat exchange of radiator (sheet) and air can be divided into active and two kinds of passive types.Active is by equipment such as electric fans, accelerate the speed air flow in the environment, thereby make exchange rate improve, as the heat radiation of computer CPU commonly used, the heat radiation of memory bar, its advantage is the efficient height, shortcoming is need to increase extras such as electric fan, and needs consumed power, and noise is big, complex structure etc.Passive type then by any additional equipment, rely on the material and the structure of radiator self, form very large heat-delivery surface, make the heat exchange of air and radiator (sheet) reach the best.

Existing fin its objective is under light as far as possible condition, pursues the maximization of physics cooling surface area, thereby realizes the highest heat exchanger effectiveness.But common problem is to have ignored air to flow for the importance of heat dispersion, only depends on heat loss through radiation can't reach best radiating effect.This is because under passive heat radiation (not having equipment such as external fan) situation, if the radiator bottom is owing to contact with thermal source, the temperature of surrounding air raises, according to aerodynamic principle, because the pressure differential that hot and cold air caused, the air of radiator bottom upwards flows, and cold air is if can not in time add near the thermal source, then can form " tropical island effect ", thereby it is bad to cause dispelling the heat.In like manner,, can not obtain good heat-radiation effect, be not described in detail in this if the radiator top contacts with thermal source.

Summary of the invention

One of technical problem to be solved by this invention provides a kind of vertical convection radiator, and solving that present passive heat radiation device is easy to generate tropical island effect and causes radiating effect is not extraordinary problem.

For solving the problems of the technologies described above, the present invention adopts following technical scheme:

A kind of vertical convection radiator is characterized in that, described vertical convection radiator has some convection channel, and described convection channel runs through the upper and lower surface of vertical convection radiator.

A kind of vertical convection radiator is characterized in that, also comprises the light resource installing section part, and with some radiating fins that the lower end is connected with the heat conduction of described light resource installing section part, heat conduction is connected described light resource installing section part with radiating fin is one-body molded.

A kind of vertical convection radiator is characterized in that, described some convection channel are formed by some radiating fins between radiating fin.

A kind of vertical convection radiator is characterized in that, described vertical convection radiator also comprises frame, and described some convection channel are formed jointly by some radiating fins and frame between radiating fin and frame.

A kind of vertical convection radiator is characterized in that, the cross section of described frame is any one or the multiple combination in circular, square, regular hexagon, octagon, ellipse, rhombus, trapezoidal, the triangle.

A kind of vertical convection radiator is characterized in that, described vertical convection radiator also comprises frame and be connected gusset, and described some convection channel are at radiating fin, frame and be connected between the gusset, is formed jointly by some radiating fins and frame and gusset.

A kind of vertical convection radiator is characterized in that, described frame or the cross section that connects gusset are any one or the multiple combination in circular, square, regular hexagon, octagon, ellipse, rhombus, trapezoidal, the triangle.

A kind of vertical convection radiator is characterized in that, described light resource installing section part adopts the mode of interference fit to be set in the bottom periphery of described frame and heat conduction connects.

A kind of vertical convection radiator is characterized in that, the surface of described vertical convection radiator is coated with the black nano lacquer.

Two of technical problem to be solved by this invention is corresponding a kind of vertical convection heat radiation Down lamps that provide, and solve present LED Down lamp causing radiating effect because adopting existing passive heat radiation device is not extraordinary problem.

For solving the problems of the technologies described above, the present invention adopts following technical scheme:

A kind of vertical convection heat radiation Down lamp comprises radiator, and described radiator is aforesaid any one vertical convection radiator.

The invention has the beneficial effects as follows:

Adopted the vertical convection radiator of technical solution of the present invention, owing to be provided with the convection channel that runs through the radiator upper and lower surface, when the substrate that is positioned at the radiating fin lower end during with the lower end of heat transferred radiating fin, the radiating fin lower end can be with near constantly heating and rising of the air it, near while cold air can constantly replenish and the generation convection current, even thereby make the vertical convection radiator of this specific embodiment under the condition of passive heat radiation, also can form than higher air velocity field, allow cold air radiating fin surface abundant and the vertical convection radiator that sufficient heat exchange takes place, take away heat rapidly, thereby avoided producing " tropical island effect ", promoted heat-sinking capability greatly in the radiator bottom.

Adopt the vertical convection heat radiation Down lamp of technical solution of the present invention vertical convection radiator, when saving material cost, alleviating light fixture weight, also improved the heat dispersion of light fixture.In addition, the vertical convection heat radiation Down lamp of this specific embodiment is except installing and using as general Down lamp, can also with indoor original air outlet combination, utilize the existing air channel circulatory system, do not expending in addition under the situation of the energy, the change passive heat radiation is active heat radiation, has not only saved the interior decoration cost, save the energy, also strengthened the effect of air circulation and heat radiation.

Description of drawings

Fig. 1 is the structural representation of vertical convection radiator bottom surface miter angle in the embodiment of the invention one.

Fig. 2 is the structural representation of vertical convection radiator end face miter angle in the embodiment of the invention one.

Fig. 3 is that the vertical convection radiator removes structural representation behind two side's frames among Fig. 2.

Fig. 4 is the structural representation of vertical convection heat radiation Down lamp in the embodiment of the invention one.

Fig. 5 is the exploded view of vertical convection heat radiation Down lamp in the embodiment of the invention one.

Fig. 6 is the structural representation of vertical convection radiator bottom surface miter angle in the embodiment of the invention two.

Fig. 7 is the structural representation of vertical convection radiator end face miter angle in the embodiment of the invention two.

Fig. 8 is the structural representation of vertical convection radiator end face miter angle in the embodiment of the invention three.

Fig. 9 is the structural representation of vertical convection radiator end face miter angle in the embodiment of the invention four.

The invention will be further described below in conjunction with accompanying drawing.

The specific embodiment

Embodiment one

The vertical convection radiator of this specific embodiment, according to " stack effect " structure of existing aluminum extruded radiator is improved, the structure of the vertical convection radiator after the improvement as depicted in figs. 1 and 2, comprise several radiating fins 11, also comprise frame 15 and be connected gusset 16, and the light resource installing section part, the light resource installing section part is provided with installation position 14.As shown in Figure 3, the vertical convection radiator of this specific embodiment is with the existing tangible difference of aluminum extruded radiator, entire radiator has been run through in most of radiating fin 11 and frame 15 and the space that is connected formation between the gusset 16, thereby has formed some convection channel 13.The vertical convection radiator is when work, near the cold air of vertical convection radiator bottom (thermal source) is constantly risen along convection channel 13 after the heating, simultaneously cold air can replenish rapidly from the bottom of convection channel 13, even thereby make the vertical convection radiator of this specific embodiment under the condition of passive heat radiation, also can form than higher air velocity field, allow cold air radiating fin 11 surfaces abundant and the vertical convection radiator that sufficient heat exchange takes place, take away heat rapidly, thereby avoided producing " tropical island effect " in the radiator bottom.

A kind of vertical convection radiator that this specific embodiment provides, because the space between the radiating fin 11 has formed the convection channel 13 that runs through the radiator upper and lower surface, and the long-pending mobile position of air that all has been exposed to of the most surfaces of radiating fin 11, thereby when working, the vertical convection radiator can produce " stack effect ", and the temperature of thermal source is high more, " stack effect " is obvious more, make the vertically free convection of cold and hot air, rapidly heat is taken away easilier, thereby the existing radiator of radiating effect is better.

The vertical convection radiator of this specific embodiment, owing to be provided with tetragonal frame 15 at the radiator periphery, and between the diagonal angle of frame, be provided with the connection gusset 16 of intersection, thereby the vertical convection intensity of radiator is higher, is not easy to cause distortion because of collision waits.Certainly; frame 15 be connected gusset 16 and inessential; also can form some convection channel 13 that run through the radiator two ends between a plurality of radiating fins 11; also within protection scope of the present invention, and in fact the frame 15 in this specific embodiment be connected gusset 16 and itself also can be regarded as a kind of radiating fin 11.

In the optimized technical scheme, also the surface to the vertical convection radiator sprays, and particularly is to adopt the black nano lacquer that the surface of vertical convection radiator is sprayed.Experimental results show that black can increase the ability that the vertical convection radiator carries out heat loss through radiation, and the micro-structural on nano-paint surface, can realize the maximization of vertical convection radiator heat-dissipation area, thereby further promote the ability of carrying out heat exchange with air.

A kind of vertical convection heat radiation Down lamp that this specific embodiment provides comprises: vertical convection radiator 1, lampshade 2 and luminescence unit 3 as shown in Figure 4 and Figure 5.

Wherein luminescence unit 3 can be single LED lamp 31, also can be as shown in Figure 4, a plurality of LED lamps 31 of array on a circuit board 30.

The lampshade 2 of this specific embodiment, respectively be provided with two buckles 21 on its four limit, only luminescence unit 3 need be put into light resource installing section part 14 during installation, cover described lampshade 2 then, the buckle 21 at lampshade 2 edges fastens the edge of vertical convection radiator 1 light resource installing section part, promptly finished assembling, thereby be very much convenient.Vertical convection heat radiation Down lamp after installing as shown in Figure 4.

The vertical convection heat radiation Down lamp of this specific embodiment because used vertical convection radiator 1 provided by the invention, when saving material cost, alleviating light fixture weight, has also improved the heat dispersion of light fixture.In addition, the vertical convection heat radiation Down lamp of this specific embodiment is except installing and using as general Down lamp, can also with indoor original air outlet combination, utilize the existing air channel circulatory system, do not expending in addition under the situation of the energy, the change passive heat radiation is active heat radiation, has not only saved the interior decoration cost, save the energy, also strengthened the effect of air circulation and heat radiation.

Embodiment two

Vertical convection radiator of the present invention specifically can have some kinds of distortion in shape, is the another kind of vertical convection radiator that this specific embodiment provides as shown in Figure 6 and Figure 7.

Vertical convection radiator in this specific embodiment is whole cylindrical with the maximum difference of embodiment one.Each radiating fin therefrom mind-set external radiation evenly distributes, and outermost is columnar frame 15, and middle also have two columnar connection gussets 16, and connect gusset 16 and frame 15 concentric settings.Certainly, most crucial essence still is radiating fin with frame 15 and is connected space between the gusset 16 and has formed and run through radiator convection channel 13 up and down, thereby also can form " stack effect ", thereby improves radiating effect.Accordingly, light resource installing section part and installation position 14 also are deformed into circular.The vertical convection radiator of this specific embodiment is arranged to annular with light resource installing section part and installation position 14, makes convection current more smooth and easy, especially is suitable for the vertical convection heat radiation Down lamp that cooperates air outlet to use.In the present embodiment, luminescence unit also is arranged to annular, is installed in the installation position 14.Should be appreciated that installation position 14 can be set directly at the below of frame 15, and the light resource installing section part needn't be set separately; In like manner, frame 15 bottom outer wall can be provided with a bead 17, and installation position 14 can be set directly at the below of bead 17, and the light resource installing section part needn't be set separately.

Embodiment three

A kind of vertical convection radiator that this specific embodiment provides is with the difference of embodiment two that as shown in Figure 8 the aluminium base (not shown) that LED is installed is not to be enclosed within frame 15 peripheries, and is arranged on the inside of frame 15.And the cylindrical shape that does not have to be provided with as embodiment two connects gusset 16.

Embodiment four

A kind of vertical convection radiator that this specific embodiment provides as shown in Figure 9, be with the difference of embodiment two, frame 15 is square tube shape, outer wall bead 17 also corresponding setting has become square frame shape, the installation position of luminescence unit also is arranged to square, and is set directly at outer wall bead 17 bottom surfaces.In addition, each radiating fin 11 in the frame 15 forms grid-like.The mechanical structure of the vertical convection radiator of this kind structure is also highly stable, and radiating effect is fine.Should be appreciated that a replacement scheme, the aluminium base of LED is installed also can be arranged to block form or " returning " setting as present embodiment.

Need to prove at last; the shape of radiator body and luminescence unit installation position is not limited in above circle of giving an example and square; but its cross section can have any shape; such as any one and the multiple combination in regular hexagon, octagon, ellipse, rhombus, trapezoidal, triangle etc.; as long as form the convection channel that connects up and down between the both ends of the surface at radiator; avoid producing tropical island effect in order to add strong convection; thereby promote the radiator and the Down lamp of radiating effect, promptly within protection scope of the present invention.

Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.

Claims (10)

1. a vertical convection radiator is characterized in that, described vertical convection radiator has some convection channel, and described convection channel runs through the upper and lower surface of vertical convection radiator.
2. a kind of vertical convection radiator as claimed in claim 1, it is characterized in that, also comprise the light resource installing section part, with some radiating fins that the lower end is connected with the heat conduction of described light resource installing section part, heat conduction is connected described light resource installing section part with radiating fin is one-body molded.
3. a kind of vertical convection radiator as claimed in claim 1 or 2 is characterized in that described some convection channel are formed by some radiating fins between radiating fin.
4. a kind of vertical convection radiator as claimed in claim 1 or 2 is characterized in that described vertical convection radiator also comprises frame, and described some convection channel are formed jointly by some radiating fins and frame between radiating fin and frame.
5. a kind of vertical convection radiator as claimed in claim 4 is characterized in that, the cross section of described frame is any one or the multiple combination in circular, square, regular hexagon, octagon, ellipse, rhombus, trapezoidal, the triangle.
6. a kind of vertical convection radiator as claimed in claim 1 or 2, it is characterized in that, described vertical convection radiator also comprises frame and is connected gusset, and described some convection channel are at radiating fin, frame and be connected between the gusset, formed jointly by some radiating fins and frame and gusset.
7. a kind of vertical convection radiator as claimed in claim 6, it is characterized in that described frame or the cross section that connects gusset are any one or the multiple combination in circular, square, regular hexagon, octagon, ellipse, rhombus, trapezoidal, the triangle.
8. as any described a kind of vertical convection radiator in the claim 4 to 7, it is characterized in that described light resource installing section part adopts the mode of interference fit to be set in the bottom periphery of described frame and heat conduction connects.
9. a kind of vertical convection radiator as claimed in claim 1 or 2 is characterized in that, the surface of described vertical convection radiator is coated with the black nano lacquer.
10. a vertical convection heat radiation Down lamp comprises radiator, it is characterized in that described radiator is any described a kind of vertical convection radiator in the claim 1 to 9.
CN201110155977.7A 2011-06-11 2011-06-11 Vertical convector radiator and vertical convector radiating down lamp CN102221189B (en)

Priority Applications (1)

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Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110155977.7A CN102221189B (en) 2011-06-11 2011-06-11 Vertical convector radiator and vertical convector radiating down lamp
PCT/CN2011/001786 WO2012171150A1 (en) 2011-06-11 2011-10-25 Vertical convection radiator and vertical convection radiating cylinder lamp

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CN102221189A true CN102221189A (en) 2011-10-19
CN102221189B CN102221189B (en) 2014-04-02

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
CN102705732A (en) * 2012-05-16 2012-10-03 中山市华泰照明有限公司 Inside light LED (light-emitting diode) face illuminant lamp
CN102748740A (en) * 2012-07-24 2012-10-24 深圳市红色投资有限公司 LED (light-emitting diode) heat radiating module
WO2012171150A1 (en) * 2011-06-11 2012-12-20 东莞勤上光电股份有限公司 Vertical convection radiator and vertical convection radiating cylinder lamp
CN102878490A (en) * 2012-09-12 2013-01-16 东莞勤上光电股份有限公司 LED (Light Emitting Diode) spotlight for heat loss through convection by air
CN103453493A (en) * 2012-05-30 2013-12-18 海洋王照明科技股份有限公司 Cooling structure and light-emitting diode (LED) lamp with same
CN103557483A (en) * 2013-11-12 2014-02-05 玉丰海洋科仪股份有限公司 Submarine lighting device and submarine lighting equipment
CN103574556A (en) * 2012-07-20 2014-02-12 杨泰和 Cup-shaped heat dissipater having flow guide hole annularly arranged at the bottom periphery and applied in electric luminous body
CN104235654A (en) * 2014-09-19 2014-12-24 上虞市宏恩精密机械有限公司 High-efficient radiating LED (light-emitting diode) lamp
CN104565943A (en) * 2015-01-16 2015-04-29 浙江兰普防爆照明有限公司 Large-power LED lamp

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CN2399696Y (en) * 1999-06-11 2000-10-04 王炯中 Improved structure of radiator
CN201032082Y (en) * 2007-04-11 2008-03-05 祥敏国际股份有限公司 LED module
CN101749667A (en) * 2008-12-02 2010-06-23 冉秀艳 High-power LED lighting device
CN201547722U (en) * 2009-09-30 2010-08-11 李廷帅 Radiating fin for high power LED lamp
CN101730455A (en) * 2009-12-22 2010-06-09 张志强 Heat-radiating device of electric component
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Publication number Priority date Publication date Assignee Title
WO2012171150A1 (en) * 2011-06-11 2012-12-20 东莞勤上光电股份有限公司 Vertical convection radiator and vertical convection radiating cylinder lamp
CN102705732A (en) * 2012-05-16 2012-10-03 中山市华泰照明有限公司 Inside light LED (light-emitting diode) face illuminant lamp
CN103453493A (en) * 2012-05-30 2013-12-18 海洋王照明科技股份有限公司 Cooling structure and light-emitting diode (LED) lamp with same
CN103574556A (en) * 2012-07-20 2014-02-12 杨泰和 Cup-shaped heat dissipater having flow guide hole annularly arranged at the bottom periphery and applied in electric luminous body
CN102748740A (en) * 2012-07-24 2012-10-24 深圳市红色投资有限公司 LED (light-emitting diode) heat radiating module
CN102748740B (en) * 2012-07-24 2015-03-04 深圳市萌卡科技有限公司 LED (light-emitting diode) heat radiating module
CN102878490A (en) * 2012-09-12 2013-01-16 东莞勤上光电股份有限公司 LED (Light Emitting Diode) spotlight for heat loss through convection by air
CN102878490B (en) * 2012-09-12 2015-12-23 东莞勤上光电股份有限公司 A kind of LED spotlight of cross-ventilation heat radiation
CN103557483A (en) * 2013-11-12 2014-02-05 玉丰海洋科仪股份有限公司 Submarine lighting device and submarine lighting equipment
CN104235654A (en) * 2014-09-19 2014-12-24 上虞市宏恩精密机械有限公司 High-efficient radiating LED (light-emitting diode) lamp
CN104565943A (en) * 2015-01-16 2015-04-29 浙江兰普防爆照明有限公司 Large-power LED lamp

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