CN206234748U - A kind of heat abstractor for automobile LED headlight - Google Patents

A kind of heat abstractor for automobile LED headlight Download PDF

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Publication number
CN206234748U
CN206234748U CN201621288434.7U CN201621288434U CN206234748U CN 206234748 U CN206234748 U CN 206234748U CN 201621288434 U CN201621288434 U CN 201621288434U CN 206234748 U CN206234748 U CN 206234748U
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CN
China
Prior art keywords
radiating
hot channel
heat sink
flat hot
heat
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.)
Expired - Fee Related
Application number
CN201621288434.7U
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Chinese (zh)
Inventor
程峰
郭健忠
钱能
李明忠
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.)
Wuhan University of Science and Engineering WUSE
Wuhan University of Science and Technology WHUST
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Wuhan University of Science and Engineering WUSE
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Priority to CN201621288434.7U priority Critical patent/CN206234748U/en
Application granted granted Critical
Publication of CN206234748U publication Critical patent/CN206234748U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of heat abstractor for automobile LED headlight, including:Water tank;It is close to heat sink flat hot channel;The outlet pipe that one end is connected with the water side of flat hot channel, the other end and water tank are connected;The water inlet pipe being connected with the water inlet end of flat hot channel;The coolant in water tank is driven to enter the water pump of flat hot channel by water inlet pipe;Located at flat hot channel away from heat sink side radiating bottom plate;Multiple radiating baffle plates, radiating bottom plate, the other end are fixed in each radiating baffle plate equal one end, and to extend to abutting heat sink.On the one hand the utility model is taken away LED and is distributed to the heat on heat sink by the flowing of coolant in flat hot channel, on the other hand by abut it is heat sink and be coated on the baffle plate of flat hot channel improve flat hot channel and it is heat sink between heat transference efficiency, and baffle plate is also beneficial to distributing for heat, so as to improve the emission efficiency of LED heat.

Description

A kind of heat abstractor for automobile LED headlight
Technical field
The utility model is related to automobile LED headlight heat dissipation technology, more particularly, to a kind of radiating for automobile LED headlight Device.
Background technology
Current headlight for vehicles mainly uses two kinds of light sources:Halogen lamp LED, xenon lamp.Halogen light source is dark, light effect for 20~ 30Lm/W, the life-span is usually no more than 1000 hours;Without filament, using arc glow, efficiency compares Halogen lamp LED to xenon lamp with the life-span Improve significantly, xenon lamp light efficiency is 100~120Lm/W, general xenon lamp service life is 2000 hours, preferable xenon The lamp life-span was up to more than 3000 hours.With the further lifting of LED technology, high-powered LED lamp is more using in automobile Lamp source in, it is compared to Halogen lamp LED and xenon lamp, and performance is more superior, and the energy consumption of automobile can be reduced using LED.But It is that, as LED is after the use many all the more of automobile front group, thing followed heat dissipation problem is sent out into restriction great power LED The bottleneck of exhibition.
From the point of view of the energy transformation mode of LED, the energy that high-power (watt level) LED only has about 15%~20% is converted to Luminous energy, and remaining up to 80% energy is all converted to heat energy, thus its heat dissipation problem will be one it is long-standing and Seriously restrict the problem of its development.Its heat dissipation problem is easily caused following some problem:1. accelerated luminescence diode chip for backlight unit is aging, Shorten its service life, or even can also cause PN junction to burn, cause it directly to scrap;2. make light emitting diode that wavelength occurs red Move, the absworption peak of wavelength departure fluorescent material is excessive, will influence light extraction efficiency;3. the aging of fluorescent material will be accelerated, so as to influence glimmering The radiation characteristic of light powder.
In view of this, radiating how is carried out to high-powered LED lamp turns into problem demanding prompt solution at this stage.
Utility model content
The purpose of this utility model is to overcome above-mentioned technical deficiency, proposes a kind of radiating dress for automobile LED headlight Put, easy heat radiation does not cause the technical problem that service life shortens to solve LED lamp of automobile in the prior art.
To reach above-mentioned technical purpose, the technical solution of the utility model provides a kind of radiating for automobile LED headlight Device, including,
Water tank;
Flat hot channel, the flat hot channel is arranged simultaneously along the heat sink length direction of automobile LED headlight It is close to described heat sink;
Outlet pipe, described outlet pipe one end is connected with the water side of the flat hot channel, the other end and the water Case is connected;
The water inlet pipe being connected with the water inlet end of the flat hot channel;
The coolant in water tank is driven to enter the water pump of flat hot channel by water inlet pipe;
Radiating bottom plate, the radiating bottom plate is located at the flat hot channel away from the heat sink side;And
Multiple radiating baffle plates, each described radiating baffle plate equal one end be fixed on the radiating bottom plate, the other end extend to Connect described heat sink, and the radiating baffle plate relatively heat sink side is formed with and coordinates the outer surface that is coated on flat hot channel Radiating groove.
Preferably, the flat hot channel include radiating tube body and be built in radiating tube body multiple dividing plates, Multiple dividing plates are sequentially arranged along the length direction of the radiating tube body, and two neighboring dividing plate interlaced arrangement makes described dissipating The heat dissipation cavity of undulate is formed with heat pipe body.
Preferably, each described dividing plate is arranged along the width of the flat hot channel.
Preferably, the heat abstractor for automobile LED headlight is also fixed on described heat sink and for detecting including one The temperature sensor of the heat sink temperature and a controller, the controller include that temperature signal collection module, first compare mould Block and water pump drive module, the temperature signal collection module are used for the telecommunications that collecting temperature sensor detection heat sink temperature is produced Number, first comparison module is used to judge that whether the electric signal, more than first threshold, institute is started if more than first threshold Water pump drive module is stated, the water pump drive module is used to drive the pump working.
Preferably, the controller also includes the second comparison module and water pump stopping modular, and second comparison module is used In judging whether the electric signal is less than Second Threshold, the water pump stopping modular, the water are started if less than Second Threshold Pump stopping modular is used to drive the water pump to be stopped;Wherein, the Second Threshold is less than first threshold.
Preferably, the flat hot channel, radiating bottom plate and radiating baffle plate are aluminum alloy material.
Compared with prior art, on the one hand the utility model is taken away by the flowing of coolant in flat hot channel LED is distributed to the heat on heat sink, is on the other hand improved by abutting baffle plate that is heat sink and being coated on flat hot channel Flat hot channel and it is heat sink between heat transference efficiency, and baffle plate is also beneficial to distributing for heat, so as to improve LED The emission efficiency of lamp heat.
Brief description of the drawings
Fig. 1 is the attachment structure schematic diagram of the heat abstractor for automobile LED headlight of the present utility model;
Fig. 2 is the A-A direction views of Fig. 1 of the present utility model;
Fig. 3 is the distribution schematic diagram of radiating baffle plate of the present utility model;
Fig. 4 is the cross section structure diagram of flat hot channel of the present utility model;
Fig. 5 is the connection block diagram of controller of the present utility model.
Specific embodiment
In order that the purpose of this utility model, technical scheme and advantage become more apparent, below in conjunction with accompanying drawing and implementation Example, is further elaborated to the utility model.It should be appreciated that specific embodiment described herein is only used to explain The utility model, is not used to limit the utility model.
Fig. 1~5 are referred to, embodiment of the present utility model provides a kind of heat abstractor for automobile LED headlight 100, including,
Water tank 11;
Flat hot channel 12, the flat hot channel 12 along heat sink the 200 of automobile LED headlight length direction Arrange and be close to described heat sink 200;
Outlet pipe 13, the one end of the outlet pipe 13 is connected with the water side of the flat hot channel 12, the other end with The water tank 11 is connected;
The water inlet pipe 14 being connected with the water inlet end of the flat hot channel 12;
The coolant in water tank 11 is driven to enter the water pump 15 of flat hot channel 12 by water inlet pipe 14;
Radiating bottom plate 16, the radiating bottom plate 16 is located at the flat hot channel 12 away from heat sink 200 side; And
Multiple radiating baffle plate 17, each equal one end of the radiating baffle plate 17 is fixed on the radiating bottom plate 16, other end and is prolonged Abutting described heat sink 200 is extended, and relatively heat sink 200 side of the radiating baffle plate 17 is formed with cooperation and is coated on flat radiating The radiating groove 171 of the outer surface of pipeline 12.
As shown in Figure 1 and Figure 2, the main lamp hole being installed on by heat sink 200 and multiple on heat sink 200 of general automobile LED headlight LED composition in 21, the heat transfer that LED sends to heat sink 200 is simultaneously distributed by heat sink 200, and heat sink 200 typically adopt With copper material, it is conducive to emission efficiency, but when the power of multiple LEDs is higher, heat sink 200 heat produced speed meets The not demand of LED, especially in hot summer.And the present embodiment is then setting a flat board for being close to heat sink 200 arrangement Formula hot channel 12, and by water pump 15 drive coolant circulate flat hot channel 12 is flowed into by water tank 11, again by flat board In the reflow tank 11 of formula hot channel 12, and the heat that coolant will can absorb in water inlet pipe 14, water tank 11 and outlet pipe 13 Distribute.
Need not move through coolant under the of short duration situation of turning on light such as bridge opening and carry out heat due to being crossed in winter or daytime Distribute, the waste of energy is caused in order to reduce water pump 15 and drive, therefore the present embodiment sets radiating baffle plate 17 and radiating bottom plate 16 enters Row radiating, radiating baffle plate 17 can increase area of dissipation, quickly disperse heat sink 200 heat, while the relative thermal of baffle plate 17 that radiates Heavy 200 one end are provided with the radiating groove 171 for being coated on flat hot channel 12, consequently facilitating heat sink 200 heat transfer is extremely Radiating baffle plate 17, and heat transfer is carried out along the outer surface of flat hot channel 12 by radiating baffle plate 17 and heat sink 200 simultaneously, its Improve the efficiency that the heat on heat sink 200 is transmitted to flat hot channel 12.
Wherein, as shown in Figure 1, Figure 3, multiple 17 points of radiating baffle plates of the present embodiment are two groups, and this two groups respectively close to flat The water inlet end of plate type radiator pipeline 12 and water side are set.
As shown in figure 4, the radiating efficiency in order to further improve flat hot channel 12, flat board described in the present embodiment Formula hot channel 12 includes radiating tube body 121 and is built in multiple dividing plates 122 of radiating tube body 121, multiple dividing plates 122 are sequentially arranged along the length direction of the radiating tube body 121, and the interlaced arrangement of two neighboring dividing plate 122 makes the radiating The heat dissipation cavity of undulate is formed with tube body 121, by the setting of multiple dividing plates 122, it extends flat radiating tube The length of heat dissipation cavity in road 12, it is conducive to residence time of the coolant in heat dissipation cavity, and then ensures with heat biography higher Pass efficiency.
Wherein, because flat hot channel 12 is in strip, its thickness is relatively small, consequently facilitating increasing and heat sink 200 Contact area, corresponding, when specifically setting, the present embodiment each described dividing plate 122 is along the flat hot channel 12 Width arrangement, so as to ensure contact area on the premise of extend radiating cavity length.
In order to improve radiating efficiency, flat hot channel 12, radiating bottom plate 16 and radiating baffle plate 17 described in the present embodiment Aluminum alloy material is, corresponding water inlet pipe 14 and outlet pipe 13 are also adopted by aluminum alloy material.
As shown in Fig. 2, Fig. 5, during due to practical operation, the time that water pump 15 is radiated of opening can not be accurately held, Therefore the heat abstractor for being used for automobile LED headlight described in the present embodiment is also fixed on described heat sink 200 and for detecting including one State the controller 19 of temperature sensor 18 and of heat sink 200 temperature, the controller 19 include temperature signal collection module 191, First comparison module 192 and water pump drive module 193, the temperature signal collection module 191 are used for collecting temperature sensor 18 The electric signal that heat sink 200 temperature is produced is detected, whether first comparison module 192 is used to judge the electric signal more than first Threshold value, starts the water pump drive module 193 if more than first threshold, and the water pump drive module 193 is described for driving Water pump 15 works.I.e. by the temperature of the real-time detection of temperature sensor 18 heat sink 200, when heat sink 200 temperature is higher than setting value When, illustrate heat sink 200 and baffle plate radiating efficiency can not meet the heating demands of LED, now sentenced by the first comparison module 192 Break the temperature sensor 18 generation electric signal, if temperature is higher than setting value, the electric signal of corresponding generation is more than first threshold, Then start the drive circuit of water pump 15, it drives water pump 15 to work to drive coolant flow to be radiated.
And, controller 19 described in the present embodiment also includes the second comparison module 194 and water pump stopping modular 195, described Second comparison module 194 is used to judge that whether the electric signal, less than Second Threshold, the water is started if less than Second Threshold Pump stopping modular 195, the water pump stopping modular 195 is used to drive the water pump 15 to be stopped;Wherein, the Second Threshold Less than first threshold.Heat sink 200 temperature i.e. after radiating then drives water less than after setting value by water pump stopping modular 195 Pump 15 is stopped, and on the one hand it avoid water pump 15 from being rotated further waste electric energy, is on the other hand conducive to the cooling in water tank 11 Liquid distributes heat energy.
The present embodiment is driven by the automation that above-mentioned control mode realizes water pump 15, and then is realized to heat sink 200 Automation cooling.It should be noted that the present embodiment temperature signal collection module 191 can be by a signal acquisition circuit reality Existing, the first comparison module 192 and the second comparison module 194 can realize that water pump drive module 193 and water pump stop by comparison circuit Only module 195 can then be realized by turning circuit and disconnecting circuit, and foregoing circuit is this area custom circuit, therefore the present embodiment Concrete structure to foregoing circuit is not described in detail.
Compared with prior art, on the one hand the utility model is taken away by the flowing of coolant in flat hot channel 12 LED distributes the heat on heat sink 200, on the other hand by abutting heat sink 200 and being coated on flat hot channel 12 Baffle plate improves the heat transference efficiency between flat hot channel 12 and heat sink 200, and baffle plate is also beneficial to distributing for heat, So as to improve the emission efficiency of LED heat.
The above specific embodiment of the present utility model, does not constitute the restriction to the utility model protection domain. Any various other corresponding change and deformation made according to technology design of the present utility model, should be included in this practicality In new scope of the claims.

Claims (6)

1. a kind of heat abstractor for automobile LED headlight, it is characterised in that including,
Water tank;
Flat hot channel, the flat hot channel is arranged and is close to along the heat sink length direction of automobile LED headlight In described heat sink;
Outlet pipe, described outlet pipe one end is connected with the water side of the flat hot channel, the other end connects with the water tank Connect;
The water inlet pipe being connected with the water inlet end of the flat hot channel;
The coolant in water tank is driven to enter the water pump of flat hot channel by water inlet pipe;
Radiating bottom plate, the radiating bottom plate is located at the flat hot channel away from the heat sink side;And
Multiple radiating baffle plate, each equal one end of the radiating baffle plate is fixed on the radiating bottom plate, the other end and extends to abutting institute State heat sink, and the radiating baffle plate relatively heat sink side is formed with the radiating for coordinating the outer surface for being coated on flat hot channel Groove.
2. the heat abstractor for automobile LED headlight according to claim 1, it is characterised in that the flat radiating Pipeline includes radiating tube body and is built in multiple dividing plates of radiating tube body, and multiple dividing plates are along the radiating tube body Length direction is sequentially arranged, and two neighboring dividing plate interlaced arrangement makes to be formed with the radiating of undulate in the radiating tube body Chamber.
3. the heat abstractor for automobile LED headlight according to claim 2, it is characterised in that each described dividing plate is equal Arranged along the width of the flat hot channel.
4. the heat abstractor for automobile LED headlight according to Claims 2 or 3, it is characterised in that described for automobile The heat abstractor of LED headlights also include one be fixed on it is described heat sink and for detecting the temperature sensor and of the heat sink temperature Controller, the controller includes temperature signal collection module, the first comparison module and water pump drive module, the temperature signal Acquisition module is used for the electric signal that collecting temperature sensor detection heat sink temperature is produced, and first comparison module is used to judge institute Whether electric signal is stated more than first threshold, the water pump drive module is started if more than first threshold, the water pump drives mould Block is used to drive the pump working.
5. the heat abstractor for automobile LED headlight according to claim 4, it is characterised in that the controller is also wrapped The second comparison module and water pump stopping modular are included, whether second comparison module is used to judge the electric signal less than the second threshold Value, starts the water pump stopping modular if less than Second Threshold, and the water pump stopping modular is used to drive the water pump to stop Work;Wherein, the Second Threshold is less than first threshold.
6. the heat abstractor for automobile LED headlight according to claim 4, it is characterised in that the flat radiating Pipeline, radiating bottom plate and radiating baffle plate are aluminum alloy material.
CN201621288434.7U 2016-11-28 2016-11-28 A kind of heat abstractor for automobile LED headlight Expired - Fee Related CN206234748U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621288434.7U CN206234748U (en) 2016-11-28 2016-11-28 A kind of heat abstractor for automobile LED headlight

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621288434.7U CN206234748U (en) 2016-11-28 2016-11-28 A kind of heat abstractor for automobile LED headlight

Publications (1)

Publication Number Publication Date
CN206234748U true CN206234748U (en) 2017-06-09

Family

ID=58980587

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621288434.7U Expired - Fee Related CN206234748U (en) 2016-11-28 2016-11-28 A kind of heat abstractor for automobile LED headlight

Country Status (1)

Country Link
CN (1) CN206234748U (en)

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170609

Termination date: 20171128

CF01 Termination of patent right due to non-payment of annual fee