CN103836386B - Light fixture and its heat sink - Google Patents

Light fixture and its heat sink Download PDF

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Publication number
CN103836386B
CN103836386B CN201210481331.2A CN201210481331A CN103836386B CN 103836386 B CN103836386 B CN 103836386B CN 201210481331 A CN201210481331 A CN 201210481331A CN 103836386 B CN103836386 B CN 103836386B
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China
Prior art keywords
light fixture
radiating block
heat sink
housing
fan
Prior art date
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Application number
CN201210481331.2A
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Chinese (zh)
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CN103836386A (en
Inventor
周明杰
梁欢
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.)
Oceans King Lighting Science and Technology Co Ltd
Oceans King Dongguan Lighting Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
Original Assignee
Oceans King Lighting Science and Technology Co Ltd
Oceans King Dongguan Lighting Technology Co Ltd
Shenzhen Oceans King Lighting Engineering Co Ltd
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Application filed by Oceans King Lighting Science and Technology Co Ltd, Oceans King Dongguan Lighting Technology Co Ltd, Shenzhen Oceans King Lighting Engineering Co Ltd filed Critical Oceans King Lighting Science and Technology Co Ltd
Priority to CN201210481331.2A priority Critical patent/CN103836386B/en
Publication of CN103836386A publication Critical patent/CN103836386A/en
Application granted granted Critical
Publication of CN103836386B publication Critical patent/CN103836386B/en
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Abstract

The invention discloses a kind of light fixture and its heat sink.Light fixture includes housing, light source assembly and light fixture heat sink, and light source assembly and light fixture heat sink are arranged in housing.Light fixture heat sink includes semiconductor chilling plate, radiating block, runner pipe and fan;Semiconductor chilling plate is fixedly connected with radiating block, and through hole is offered on radiating block;Runner pipe is bent into tool ring-type jaggy;Radiating block and fan are fixed in breach, and the inner chamber of runner pipe and the through hole of radiating block constitute the circulation loop for air flow;Runner pipe and radiating block are made by heat-conducting, and fan is fixed on the end of through hole, for promoting the air circulation flow in runner pipe.Air in runner pipe can be freezed using semiconductor chilling plate and radiating block, cold air is circulated by fan, heat conduction efficiency can be increased substantially, cool efficiency high;By circulating for cold air, the heat at the multiple positions of light fixture is can absorb, makes the Temperature Distribution of whole light fixture more uniform.

Description

Light fixture and its heat sink
Technical field
The present invention relates to a kind of lighting device, more particularly to a kind of light fixture and its heat sink.
Background technology
General large-scale light fixture is because light source compares concentration, and light source caloric value is big, and the heat conducting and radiating of conventional lamp is general It is, by housing contact heating position, to transfer heat away from.But this radiating mode is less efficient, and each position temperature of light fixture Degree is uneven.
The content of the invention
It is an object of the invention to provide a kind of light fixture and its heat sink, cool efficiency high, and makes the temperature of whole light fixture Degree distribution is more uniform.
In order to solve the above-mentioned technical problem, the invention provides a kind of light fixture heat sink, including semiconductor chilling plate, dissipate Hot block, runner pipe and fan;Wherein,
The semiconductor chilling plate is fixedly connected with the radiating block, and through hole is offered on the radiating block;
The runner pipe is bent into tool ring-type jaggy;The radiating block and the fan are fixed in breach, and institute State the inner chamber of runner pipe and the circulation loop for supplying air flow is constituted with the through hole of the radiating block;The runner pipe and the radiating Block is made by heat-conducting,
The fan is fixed on the end of the through hole, for promoting the air circulation flow in the runner pipe.
Wherein, the radiating block is aluminium block.
Wherein, the through hole is multiple for what is be axially parallel to each other.
Wherein, the radiating block is hexahedron, with two relative end faces and four sides, the through hole connection radiating Two end faces of block, the semiconductor chilling plate is fixed on the side of the radiating block.
Wherein, the semiconductor chilling plate is two, is separately positioned on two relative sides on the radiating block.
Wherein, the fan and the through hole is axially in parallel, and the wind direction of the fan is towards the radiating block.
Correspondingly, present invention also offers a kind of light fixture, including housing and the light source assembly that is arranged in housing, the lamp Tool also includes foregoing light fixture heat sink, and the light fixture heat sink is arranged in the housing.
Wherein, the housing is made up of heat-conducting, and the runner pipe is connected with the inwall of the housing.
Wherein, division board is provided with the housing, division board is made up of heat-conducting, the cavity in housing is divided into mutually The light-source chamber and cooling chamber of isolation;The light source assembly is arranged in the light-source chamber, and the light fixture heat sink is arranged on institute State cooling intracavitary.
Wherein, the outer wall of the housing is provided with multiple fin.
Light fixture and its heat sink that the present invention is provided, can be to air in runner pipe using semiconductor chilling plate and radiating block Freezed, cold air is circulated by fan, heat conduction efficiency can be increased substantially, cool efficiency high;Pass through cold sky Circulating for gas, can absorb the heat at the multiple positions of light fixture, makes the Temperature Distribution of whole light fixture more uniform.
Brief description of the drawings
In order to illustrate more clearly of technical scheme, the required accompanying drawing used in embodiment will be made below Simply introduce, it should be apparent that, drawings in the following description are only some embodiments of the present invention, general for this area For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the outside schematic diagram for the light fixture that the preferred embodiment for the present invention is provided;
Fig. 2 is Fig. 1 part sectioned view;
Fig. 3 is profile at Fig. 1 A-A;
Fig. 4 is profile at Fig. 1 B-B.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is carried out clear Chu, it is fully described by.
Also referring to Fig. 1 to Fig. 4, a kind of light fixture that embodiment of the present invention is provided, including housing 1 and be arranged at Light source assembly 2 and light fixture heat sink 3 in housing 1, light fixture heat sink 3 include semiconductor chilling plate 31, radiating block 32, stream Siphunculus 33 and fan 34.
Semiconductor chilling plate 31 is a kind of ripe refrigeration part, using the Peltier effects of semi-conducting material, works as direct current During the galvanic couple that electricity is connected into by two kinds of different semi-conducting materials, heat can be absorbed respectively at the two ends of galvanic couple and heat is released Amount, it is possible to achieve the purpose of refrigeration.
As shown in Fig. 2 semiconductor chilling plate 31 is fixedly connected with radiating block 32, radiating block 32 is made up of heat-conducting, when Radiating block 32 is freezed after semiconductor chilling plate 31 is powered, the temperature drop of radiating block 32.Preferably, radiating block 32 is aluminium Block, in order to quick cooling.Through hole 320 is offered on radiating block 32, the circulation for air.As shown in figure 4, through hole 320 is What is be axially parallel to each other is multiple, in favor of the refrigeration to air and circulation.
For the ease of the connection of radiating block 32 and semiconductor chilling plate 31, it is preferable that as shown in Fig. 2 radiating block 32 is six Face body, with two relative end faces and four sides, through hole 320 connects two end faces of radiating block 32, semiconductor chilling plate 31 are fixed on the side of radiating block 32, to increase the contact area of radiating block 32 and semiconductor chilling plate 31, enhancing refrigeration effect Really, while beneficial to the connection of radiating block 32 and fan 34.In order to further enhance refrigeration, as shown in figure 4, semiconductor refrigerating Piece 31 is two, is separately positioned on two relative sides on radiating block 32.Certainly, herein radiating block 32 can also for cylindricality or its His solid geometry shape.
Runner pipe 33 is made up of heat-conducting, and is bent into tool ring-type jaggy;Radiating block 32 and fan 34 are fixed on In breach, and the inner chamber of runner pipe 33 constitutes the circulation loop for air flow with the through hole 320 of radiating block 32.Runner pipe 33 by Heat-conducting, which is made, can be easy to the heat exchange of the inner air and outer air of runner pipe 33.
Fan 34 is fixed on the end of through hole 320, i.e. fan 34 and is fixed on the end face of radiating block 32, for promoting stream Air circulation flow in siphunculus 33, so as to increase substantially heat conducting and radiating efficiency.Preferably, fan 34 and through hole 320 It is axially in parallel, the wind direction of fan 34 is towards radiating block 32, as early as possible follow the pipe 33 that circulates of the cold air in through hole 320 Ring.Certainly, the wind direction of fan 34 can also be directed away from the direction of radiating block 32.
Air in runner pipe 33 can be freezed using semiconductor chilling plate 31 and radiating block 32, be made by fan 34 cold Air circulation flow, can increase substantially heat conduction efficiency, and cool efficiency high.And circulating by cold air, not only inhale The heat at radiating block 32 is received, the heat at other multiple positions of light fixture is also can absorb, makes the Temperature Distribution of whole light fixture more equal It is even.
It is provided with division board 10 in housing 1, the cavity in housing 1 is divided into mutually isolated light-source chamber and cooling by division board 10 Chamber, housing 1 and division board 10 are made by heat-conducting.Light source assembly 2 is arranged in light-source chamber 101, and light fixture heat sink 3 is set Put in cooling chamber 102, so as to avoid influence of the light fixture heat sink 3 to the explosion-proof performance of light source assembly 2.Light source assembly 2 is produced Heat by division board 10 be delivered to cooling chamber 102 in, radiated by light fixture heat sink 3.Certainly, light fixture drops herein Warm device 3 can also directly surround the surrounding for being arranged on light source assembly 2, in favor of fast cooling.
Runner pipe 33 is connected with the inwall of housing 1, the temperature of reduction lamp interior and housing 1, so as to reach that light fixture is overall The purpose of cooling, makes the Temperature Distribution of whole light fixture more uniform, so as to solve the Temperature Distribution of traditional heat conducting and radiating not Uniformity problem.
Light source assembly 2 includes light source 21, reflector 22 and circuit board 23, and circuit board 23 is fixedly connected with division board 10, with Just division board 10 is transferred heat to.Light source 21 is fixed on circuit board 23, and reflector 22 is fixedly connected with housing 1, and light source 21 It is arranged in reflector 22.The light extraction end of reflector 22 is towards the openend of the chamber 101 of light source 21.
The openend of the chamber 101 of light source 21 is provided with protecgulum 11 and glass 12, can be by the chamber of light source 21 by protecgulum 11 and glass 12 101 sealings, while being easy to the injection of light.The openend of cooling chamber 102 is sealed by bonnet 13.
For the ease of light fixture heat to external diffusion, the outer wall of housing 1 is provided with multiple fin 14.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as Protection scope of the present invention.

Claims (10)

1. a kind of light fixture heat sink, including semiconductor chilling plate and radiating block, the semiconductor chilling plate and the radiating block It is fixedly connected, it is characterised in that through hole is offered on the radiating block, the light fixture heat sink also includes runner pipe and wind Fan;
The runner pipe is bent into tool ring-type jaggy;The radiating block and the fan are fixed in breach, and the stream The through hole of the inner chamber of siphunculus and the radiating block constitutes the circulation loop for air flow;The runner pipe and the radiating block are equal It is made up of heat-conducting,
The fan is fixed on the end of the through hole, for promoting the air circulation flow in the runner pipe.
2. light fixture heat sink according to claim 1, it is characterised in that the radiating block is aluminium block.
3. light fixture heat sink according to claim 1, it is characterised in that the through hole is more for what is be axially parallel to each other It is individual.
4. light fixture heat sink according to claim 1, it is characterised in that the radiating block is hexahedron, with two Relative end face and four sides, the through hole connect two end faces of radiating block, and the semiconductor chilling plate is fixed on described On the side of radiating block.
5. light fixture heat sink according to claim 4, it is characterised in that the semiconductor chilling plate is two, respectively It is arranged on two relative sides on the radiating block.
6. light fixture heat sink according to claim 1, it is characterised in that put down the axial direction of the fan and the through hole OK, the wind direction of the fan is towards the radiating block.
7. a kind of light fixture, including housing and the light source assembly that is arranged in housing, it is characterised in that the light fixture also includes right It is required that the light fixture heat sink described in 1 to 6 any one, the light fixture heat sink is arranged in the housing.
8. light fixture according to claim 7, it is characterised in that the housing is made up of heat-conducting, the runner pipe with The inwall connection of the housing.
9. light fixture according to claim 7, it is characterised in that division board is provided with the housing, division board is by heat conduction material Matter is made, and the cavity in housing is divided into mutually isolated light-source chamber and cooling chamber;The light source assembly is arranged on the light source Intracavitary, the light fixture heat sink is arranged on the cooling intracavitary.
10. light fixture according to claim 7, it is characterised in that the outer wall of the housing is provided with multiple fin.
CN201210481331.2A 2012-11-23 2012-11-23 Light fixture and its heat sink Active CN103836386B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210481331.2A CN103836386B (en) 2012-11-23 2012-11-23 Light fixture and its heat sink

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210481331.2A CN103836386B (en) 2012-11-23 2012-11-23 Light fixture and its heat sink

Publications (2)

Publication Number Publication Date
CN103836386A CN103836386A (en) 2014-06-04
CN103836386B true CN103836386B (en) 2017-08-25

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104373916B (en) * 2014-12-01 2017-06-16 东莞市闻誉实业有限公司 Radiator with pipeline
CN104654074A (en) * 2014-12-18 2015-05-27 东莞市高鑫机电科技服务有限公司 Intelligent programmable LED (Light Emitting Diode) illuminating lamp and control method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7440280B2 (en) * 2006-03-31 2008-10-21 Hong Kong Applied Science & Technology Research Institute Co., Ltd Heat exchange enhancement
CN101482256A (en) * 2008-01-09 2009-07-15 一诠精密工业股份有限公司 Radiating device
CN201242125Y (en) * 2008-07-01 2009-05-20 中山市汉仁电子有限公司 LED lamp with improved heat radiating structure
CN201363578Y (en) * 2009-02-13 2009-12-16 苏州达方电子有限公司 Light emitting diode lamp
CN101608788A (en) * 2009-07-21 2009-12-23 史杰 The LED lamp adopts the heat radiation device for loop heat pipe of enhanced evaporation section
KR101167177B1 (en) * 2009-12-21 2012-07-24 (주) 파루 Cooling system for artificial light sources of a plant-curture factory
CN102446877A (en) * 2010-10-11 2012-05-09 海洋王照明科技股份有限公司 Semiconductor cooling device
CN202132826U (en) * 2010-11-10 2012-02-01 惠州市雷盾光电照明有限公司 Maintenance-free active type LED street lamp with heat-radiation system
CN202101341U (en) * 2010-12-06 2012-01-04 陈旃 Airduct cooling and energy saving device for machine room and base station

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