CN201179852Y - Intelligent LED lighting system for automobile - Google Patents

Intelligent LED lighting system for automobile Download PDF

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Publication number
CN201179852Y
CN201179852Y CNU2008200561612U CN200820056161U CN201179852Y CN 201179852 Y CN201179852 Y CN 201179852Y CN U2008200561612 U CNU2008200561612 U CN U2008200561612U CN 200820056161 U CN200820056161 U CN 200820056161U CN 201179852 Y CN201179852 Y CN 201179852Y
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CN
China
Prior art keywords
vehicle speed
lanterns
output
power supply
power
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
CNU2008200561612U
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Chinese (zh)
Inventor
李抒智
王康平
杨卫桥
马可军
杨洁翔
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.)
SHANGHAI RESEARCH CENTER OF ENGINEERING AND TECHNOLOGY FOR SOLID-STATE LIGHTING
Original Assignee
SHANGHAI RESEARCH CENTER OF ENGINEERING AND TECHNOLOGY FOR SOLID-STATE LIGHTING
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.)
Filing date
Publication date
Application filed by SHANGHAI RESEARCH CENTER OF ENGINEERING AND TECHNOLOGY FOR SOLID-STATE LIGHTING filed Critical SHANGHAI RESEARCH CENTER OF ENGINEERING AND TECHNOLOGY FOR SOLID-STATE LIGHTING
Priority to CNU2008200561612U priority Critical patent/CN201179852Y/en
Application granted granted Critical
Publication of CN201179852Y publication Critical patent/CN201179852Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an LED illumination system for an intelligent vehicle and belongs to the illumination device field. The LED illumination system is characterized in that the LED illumination system is provided with a comparison/control unit connected with a vehicle speed detector; an output end of the comparison/control unit is connected with an input end of a controllable power supply; an output end of the controllable power supply is connected with an LED illumination lamp; and an air-cooled type radiating device is arranged on the LED illumination lamp. The LED illumination system fully and skillfully utilizes two positive proportional relations between a vehicle speed and a requisite irradiation distance and between the vehicle speed and the radiating capacity of the air-cooled type radiating device, reasonably solves the radiating problem of a large-power LED illumination device as a vehicle headlight for use, and can be widely used in the large-power illumination device field of various vehicles.

Description

A kind of intelligent automobile-used LED Lighting System
Technical field
The utility model belongs to field of illuminating device, relates in particular to a kind of LED illumination equipment that is used for car lighting.
Background technology
For the consideration and the advantage of aspects such as service life, energy-conservation, Illumination intensity or luminous chromatogram, each car manufactures is more and more adopting the luminescent device of high-power LED illuminating device as various vehicle head lamps.
But the heating phenomenon of great power LED luminescent device increases rapidly along with the increase of its power, even has seriously influenced its service life.
For this reason, the production firm of a lot of great power LED luminescent devices adopts various ways to solve its heat dissipation problem, such as application number is the Chinese patent application " high-heat-dispersion LED luminescence component and manufacture method thereof " of CN200410008664.9, the patent No. is the Chinese patent disclosed technical schemes of patent documentation such as " a kind of heat radiation needle constructions that improves the LED temperature rise " of CN200410016272.7, but these technical schemes all lay particular emphasis on the improvement on the LED luminescent device self-radiating structure, fail to consider the integral heat sink problem of high-power LED illuminating device when using as vehicle head lamp.
The day for announcing is on November 28th, 2007, notification number is the Chinese patent " water cooled automobile-used LED heat abstractor " of CN200982606Y, a kind of " water cooled automobile-used LED heat abstractor " disclosed, it is made of light-emitting device and heat abstractor, wherein, this light-emitting device comprises luminous element and substrate, this heat abstractor comprises the equipment of pumping up water, water storage device, drain element and radiator, one side of this light-emitting device is provided with a radiator, this radiator comprises positive plate, middle plate and backboard, this positive plate, middle plate and backboard depression are fluted, and be combined into passage, inlet and liquid outlet, the liquid of water storage device is by the passage of the equipment of pumping up water via drain element injection radiator, to reach the purpose of efficiently radiates heat.
Though this technical scheme attempts to solve the integral heat sink problem of high-power LED illuminating device when using as vehicle head lamp, but its simple water-cooled means that adopt, can not tackle the problem at its root first, second structure is too complicated, the wear problem that has movable parts, influence its service life, be unfavorable for promoting and adopting.
The utility model content
Technical problem to be solved in the utility model provides a kind of intelligent automobile-used LED Lighting System, it can be according to the size of the speed of a motor vehicle, regulate the luminous intensity or the operating power of high-power LED illuminating device, control its cal val, be aided with air-cooled heat dissipation structure again, can reasonably solve the heat dissipation problem of high-power LED illuminating device when using as vehicle head lamp.
The technical solution of the utility model is: a kind of intelligent automobile-used LED Lighting System is provided, comprises the LED lamps and lanterns and be the power supply of its power supply, it is characterized in that:
Be provided with one with vehicle speed detector bonded assembly comparison/control unit, the mouth of comparison/control unit is connected with the control input end of a controllable electric power, the mouth of controllable electric power is connected with the LED lamps and lanterns, and the air cooling type heat abstractor is set on the LED lamps and lanterns;
Comparison/control unit reads the output valve through digitized vehicle speed detector, and itself and the setting value that prestores are compared, and output one is proportional to the control signal of the speed of a motor vehicle;
Controllable electric power is according to the variation of control signal, and output one is proportional to the output power of power supply (voltage and/or electric current and/or dutycycle) of the speed of a motor vehicle, makes LED lamps and lanterns output one be proportional to the Illumination intensity and/or the operating power of the speed of a motor vehicle.
Concrete, described vehicle speed detector is car speed sensor or vehicular speeds table.
Described comparison/control unit is gating circuit, micro controller system, embedded microcontroller/microprocessor, programmable logic controller (PLC) or pwm control circuit.
Further, the output valve of described vehicle speed detector is sent into microcontroller/microprocessor by data collecting card, and the output signal of microcontroller/microprocessor is sent into the control end of controllable electric power.
The output valve of described vehicle speed detector is sent into gating circuit, and power supply is connected with the LED lamps and lanterns through gating circuit.
The output valve of described vehicle speed detector is sent into gating circuit through pwm control circuit, and power supply is connected with the LED lamps and lanterns through gating circuit.
Compared with the prior art, the utility model has the advantages that:
1. according to the actual demand of " needing light-illuminating distance far away during high vehicle speeds; can shorten the irradiation distance of light during low speed driving ", by detecting the size of the speed of a motor vehicle, control the output size of LED illuminating lamp driving power, make the luminous intensity or the operating power of LED illuminating lamp be proportional to the speed of a motor vehicle, control the size of its cal val, utilize the rule of " speed of a motor vehicle is high more; the air rate that is produced is big more " again, be aided with suitable air-cooled heat dissipation structure, can reasonably solve the heat dissipation problem of high-power LED illuminating device when using as vehicle head lamp;
2. utilize electric signal to control the operating power of LED illumination equipment, convenient, be easy to realize, be convenient to promote;
3. adopt air-cooled structure to lower the temperature, technical maturation, succinct on the structure, the wear problem of no seal leakage or movable parts, long service life.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model device.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Among Fig. 1, the technical program comprises the LED lamps and lanterns and is the power supply of its power supply, it is provided with one and vehicle speed detector bonded assembly comparison/control unit, the mouth of comparison/control unit is connected with the control input end of a controllable electric power, the mouth of controllable electric power is connected with the LED lamps and lanterns, and the air cooling type heat abstractor is set on the LED lamps and lanterns.
Comparison/control unit reads the output valve through digitized vehicle speed detector, and itself and the setting value that prestores are compared, and exports a control signal that is proportional to the speed of a motor vehicle;
Controllable electric power is according to the variation of control signal, and output one is proportional to the output power of power supply (voltage and/or electric current and/or dutycycle) of the speed of a motor vehicle, makes an Illumination intensity and/or operating power that is proportional to the speed of a motor vehicle of LED lamps and lanterns output.
Concrete, described vehicle speed detector is car speed sensor or vehicular speeds table.
Described comparison/control unit is gating circuit, micro controller system, embedded microcontroller/microprocessor or programmable logic controller (PLC).
On control flow, comparison/control unit reads the output valve through digitized vehicle speed detector, itself and the setting value that prestores are compared, export a control signal that is proportional to the speed of a motor vehicle, then controllable electric power is according to the variation of input control signal, output one is proportional to the output power of power supply (voltage and/or electric current and/or dutycycle) of the speed of a motor vehicle, makes the LED illuminating lamp obtain a driving power that is proportional to the speed of a motor vehicle, and then exports an Illumination intensity that is proportional to the speed of a motor vehicle.
Self-evident, in these cases, the cal val of LED illuminating lamp and the size of the speed of a motor vehicle are with proportional, and the heat-sinking capability of the air cooling type heat abstractor that changes with changing along with the speed of a motor vehicle just in time is complementary.
Because in actual driving procedure, needed Illumination intensity or luminous range are proportional to the moving velocity of vehicle, and the Illumination intensity of lamp or luminous range are proportional to its operating power, its cal val is proportional to its operating power again, so it is after adopting control method of the present utility model, proportional between the cal val of high-powered LED lamp and the size of the speed of a motor vehicle; Simultaneously, for air cooling equipment, Vehicle Speed is high more, and then speed air flow is big more, and the heat of taking away is many more, and radiating effect is good more.
After the factor of above-mentioned two aspects combines, obtained following result:
When high vehicle speeds, the luminous intensity height of LED illuminating lamp, irradiation distance is far away, and its cal val is also big, simultaneously, the heat that the wind-cooling heat dissipating device is taken away also many (cooling performance and the speed of a motor vehicle are proportional).
Otherwise, when low vehicle speeds, the light-illuminating that needs is apart from minimizing on the one hand, the heat taken away of wind-cooling heat dissipating device tails off on the other hand, this moment is under the control of comparison/control setup, the resulting driving power of LED illuminating lamp is also little, and then its cal val also reduces, and just in time can adapt to the reduction of air cooling type heat abstractor heat-sinking capability.
So the utility model has utilized " speed of a motor vehicle and the irradiation distances that need " and " speed of a motor vehicle and air cooling type heat abstractor heat-sinking capability " these two pairs of direct ratios to concern fully, dexterously, reasonably solved the heat dissipation problem of high-power LED illuminating device when using as vehicle head lamp.
Because content does not relate to and exceeds those skilled in the art's scope to understand in the above-mentioned accompanying drawing, so those of ordinary skill in the art is appreciated that implication and mentality of designing that above-mentioned accompanying drawing is given fully, its detail is no longer narrated at this.
Further, the output valve of described vehicle speed detector is sent into microcontroller/microprocessor by data collecting card, and the output signal of microcontroller/microprocessor is sent into the control end of controllable electric power.
The output valve of described vehicle speed detector is sent into gating circuit, and power supply is connected with the LED lamps and lanterns through gating circuit.
The output valve of described vehicle speed detector is sent into gating circuit through pwm control circuit, and power supply is connected with the LED lamps and lanterns through gating circuit.
Because vehicle speed detector, vehicular speeds table, regulated power supply and comparison/control unit are prior art, its concrete principle of work and structure are no longer narrated at this.
The PWM controller can adopt the pwm control circuit based on the CPLD integrated circuit, and it is a prior art, so its concrete principle of work and structure are in this also no longer narration.
Because the corresponding relation between the heat-sinking capability of luminous range, speed air flow difference and air cooling type heat abstractor that the utility model reasonably utilized the speed of a motor vehicle, need, make that whole LED illumination equipment and accessory device thereof can be according to the sizes of the speed of a motor vehicle, regulate the luminous intensity or the operating power of high-power LED illuminating device, control its cal val, be aided with air-cooled heat dissipation structure again, can reasonably solve the heat dissipation problem of high-power LED illuminating device when using as vehicle head lamp.It has simple for structure, the wearing and tearing of movement-less part and the leakage problem of hydraulic seal, and plurality of advantages such as working stability is reliable, and is easy to implement and promote, and implementation cost is cheaper has reached the goal of the invention of the technical program.
Further, the utility model adopts LED to prepare headlight and passing light, can regulate brightness according to power that loads and heat radiation situation.This car light has the cooling system that cooperates with car body, can rely on the air flows in the vehicle ' process to dispel the heat, and simultaneously, its headlight and passing light also can switch according to the speed of a motor vehicle by central controller.
More than each the description of the drawings only be the technical scheme that is used for explaining and illustrate the application, and be not with the qualification of doing the application's invention scope, those of ordinary skill in the art, can under the situation of the thinking of the technical scheme that does not deviate from the utility model, make various being equal to or similar variation or distortion fully to the utility model.
Therefore, those of ordinary skill in the art will be appreciated that, as long as in connotation scope of the present utility model, to the variation or the distortion of above technical scheme, all will drop in the protection domain that the application's claim asks.
The utility model can be widely used in the High Power Illuminator field of various vehicles.

Claims (6)

1. an intelligent automobile-used LED Lighting System comprises the LED lamps and lanterns and is the power supply of its power supply, it is characterized in that:
Be provided with one with vehicle speed detector bonded assembly comparison/control unit, the mouth of comparison/control unit is connected with the control input end of a controllable electric power, the mouth of controllable electric power is connected with the LED lamps and lanterns, and the air cooling type heat abstractor is set on the LED lamps and lanterns;
Comparison/control unit reads the output valve through digitized vehicle speed detector, and itself and the setting value that prestores are compared, and output one is proportional to the control signal of the speed of a motor vehicle;
Controllable electric power is according to the variation of control signal, and output one is proportional to the output power of power supply of the speed of a motor vehicle, makes LED lamps and lanterns output one be proportional to the Illumination intensity and/or the operating power of the speed of a motor vehicle.
2. according to the described intelligent automobile-used LED Lighting System of claim 1, it is characterized in that described vehicle speed detector is car speed sensor or vehicular speeds table.
3. according to the described intelligent automobile-used LED Lighting System of claim 1, it is characterized in that described comparison/control unit is gating circuit, micro controller system, embedded microcontroller/microprocessor or programmable logic controller (PLC).
4. according to claim 1,2 or 3 described intelligent automobile-used LED Lighting Systems, the output valve that it is characterized in that described vehicle speed detector is sent into microcontroller/microprocessor by data collecting card, and the output signal of microcontroller/microprocessor is sent into the control end of controllable electric power.
5. according to claim 1,2 or 3 described intelligent automobile-used LED Lighting Systems, it is characterized in that the output valve of described vehicle speed detector is sent into gating circuit, power supply is connected with the LED lamps and lanterns through gating circuit.
6. according to claim 1,2 or 3 described intelligent automobile-used LED Lighting Systems, it is characterized in that the output valve of described vehicle speed detector is sent into gating circuit through pwm control circuit, power supply is connected with the LED lamps and lanterns through gating circuit.
CNU2008200561612U 2008-03-13 2008-03-13 Intelligent LED lighting system for automobile Expired - Fee Related CN201179852Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008200561612U CN201179852Y (en) 2008-03-13 2008-03-13 Intelligent LED lighting system for automobile

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008200561612U CN201179852Y (en) 2008-03-13 2008-03-13 Intelligent LED lighting system for automobile

Publications (1)

Publication Number Publication Date
CN201179852Y true CN201179852Y (en) 2009-01-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008200561612U Expired - Fee Related CN201179852Y (en) 2008-03-13 2008-03-13 Intelligent LED lighting system for automobile

Country Status (1)

Country Link
CN (1) CN201179852Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121564A (en) * 2013-04-26 2014-10-29 周路珍 Airflow heat dissipation device and LED headlamp with airflow heat dissipation devices used for heat dissipation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104121564A (en) * 2013-04-26 2014-10-29 周路珍 Airflow heat dissipation device and LED headlamp with airflow heat dissipation devices used for heat dissipation

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090114

Termination date: 20170313

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