CN206317736U - LED car lamp intelligent drive circuit and drive device - Google Patents
LED car lamp intelligent drive circuit and drive device Download PDFInfo
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- CN206317736U CN206317736U CN201720017932.6U CN201720017932U CN206317736U CN 206317736 U CN206317736 U CN 206317736U CN 201720017932 U CN201720017932 U CN 201720017932U CN 206317736 U CN206317736 U CN 206317736U
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- Prior art keywords
- led car
- car lamp
- drive circuit
- circuit
- intelligent drive
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Abstract
The utility model proposes a kind of LED car lamp intelligent drive circuit and drive device, LED car lamp is arranged on lamp plate, and lamp plate is provided with radiator and fan, LED car lamp and is connected with motor, and LED car lamp intelligent drive circuit includes：Vehicle running state sensor, AFS adaptation control circuits, AFS adaptation control circuits are connected with vehicle running state sensor and the motor respectively, wherein：Vehicle running state sensor, for detecting that vehicle travels relevant parameter, AFS adaptation control circuits are used to receive the vehicle traveling relevant parameter that vehicle running state sensor is reported, and travelling relevant parameter control motor according to vehicle carries out corresponding actions, to adjust the direction of illumination of LED car lamp.The utility model can realize that the driving of LED car lamp is intelligent.
Description
Technical field
The utility model is related to automobile technical field, more particularly to a kind of LED car lamp intelligent drive circuit and drive device.
Background technology
The drive circuit of existing LED car lamp generally use traditional common driver circuit, when automobile in the process of moving,
Easily produce following defect：Light direction and the current driving direction of automobile are inconsistent, and the brightness of car light can not be with ambient brightness
Change and change, and the wind speed of fan can not change with the change of environment temperature.
Disadvantages described above can all be caused directly or indirectly traffic accident or influence the life-span of car light, therefore, how effectively prevent
Only the life-span of traffic accident and extension car light is a big problem of LED car lamp driving design.
Utility model content
The main purpose of this hair utility model is to provide a kind of LED car lamp intelligent drive circuit and drive device, to have
Try to forestall traffic accidents to effect and extend life-span of car light.
To achieve the above object, it is described the utility model proposes a kind of LED car lamp intelligent drive circuit and drive device
LED car lamp is arranged on lamp plate, and the lamp plate is provided with radiator and fan, the LED car lamp and is connected with motor, described
LED car lamp intelligent drive circuit includes：Vehicle running state sensor, AFS adaptation control circuits, the AFS are self-adaptive controlled
Circuit processed is connected with the vehicle running state sensor and the motor respectively, wherein：
The vehicle running state sensor, for detecting that vehicle travels relevant parameter, the vehicle travels relevant parameter
At least include：Vehicle heading, deflection efficiency and travel speed；
The AFS adaptation control circuits, phase is travelled for receiving the vehicle that the vehicle running state sensor is reported
Related parameter, travels relevant parameter according to the vehicle and controls the motor to carry out corresponding actions, to adjust the photograph of the LED car lamp
Penetrate direction.
Further technical scheme of the present utility model is that the LED car lamp intelligent drive circuit also includes：Brightness is continuous
Adjust circuit and continuously adjust the light sensor that circuit is connected with the brightness, wherein：
The light sensor, the change for sensing outside vehicle ambient brightness, and continuously adjust electricity to the brightness
Road sends induced signal；
The brightness continuously adjusts circuit, for adjusting the LED car lamp according to the induced signal of the light sensor
The output current of intelligent drive circuit, controls the brightness of the LED car lamp to change with the brightness of environment and change.
Further technical scheme of the present utility model is that the LED car lamp intelligent drive circuit also includes：Wind speed is automatic
Circuit and temperature sensor are adjusted, the wind speed auto-adjusting circuit is connected with the temperature sensor and fan respectively, wherein：
The temperature sensor, sends for detecting outside vehicle environment temperature, and to the wind speed auto-adjusting circuit
The temperature signal of detection；
The wind speed auto-adjusting circuit, the input voltage for controlling the fan according to the temperature signal, to adjust
Save the rotating speed of the fan.
Further technical scheme of the present utility model is that the LED car lamp intelligent drive circuit also includes：Thermal protection
Device, wherein：
The thermal protector is connected with the fan, the test point temperature for detecting the radiator, is dissipated according to described
The output power of power supply of LED car lamp intelligent drive circuit described in the test point temperature control of hot device.
Further technical scheme of the present utility model is that the thermal protector is additionally operable to, in the detection of the radiator
When point temperature is more than or equal to the first preset value, the thermal protector is in closure state, in the fan normal work, control
The output power of power supply is made for full load condition, in the fan abnormal work, controls the output power of power supply gradually to drop
It is low；When the test point temperature of the radiator is less than the first preset value, the thermal protector is off, the fan
It is stopped, output power of power supply is full load condition.
Further technical scheme of the present utility model is that the LED car lamp intelligent drive circuit also includes：Thermistor
Circuit is detected, wherein：
The thermistor detects circuit, is more than or equal to the second preset value for the test point temperature in the radiator
When, control the output power of power supply to be tapered into temperature rise, until being zero.
Further technical scheme of the present utility model is that the LED car lamp intelligent drive circuit also includes：Short-circuit protection
Circuit.
Further technical scheme of the present utility model is that the LED car lamp intelligent drive circuit also includes：Error-polarity connection
Protection circuit and excess voltage protection.
The utility model also provides a kind of LED car lamp intelligent drive device, it is characterised in that including LED car lamp, installs institute
The lamp plate of LED car lamp is stated, is arranged on the lamp plate, the radiator for being radiated to the LED car lamp, is arranged on described
Fan on lamp plate, connects the motor of the LED car lamp, and LED car lamp intelligent drive circuit.
The beneficial effects of the utility model be set up in LED car lamp intelligent drive circuit vehicle running state sensor,
AFS adaptation control circuits, the AFS adaptation control circuits are connected with vehicle running state sensor and motor respectively, its
In：Vehicle running state sensor, for detecting that vehicle travels relevant parameter, the vehicle traveling relevant parameter at least includes：
Vehicle heading, deflection efficiency and travel speed；AFS adaptation control circuits, for receiving vehicle running state sensor
The vehicle traveling relevant parameter of report, travels relevant parameter according to the vehicle and controls the motor to carry out corresponding actions, to adjust
The direction of illumination of LED car lamp, is achieved in the AFS adaptation functions of LED car lamp, it is ensured that the travel direction of light direction and automobile
Unanimously, the generation of traffic accident is reduced；In addition, the utility model can be realized, thermal protector is detected, NTC thermistor is detected,
Brightness continuously adjusts function, wind speed automatic regulation function, it is possible to achieve the driving of LED car lamp is intelligent.
Brief description of the drawings
Fig. 1 is the theory diagram of the utility model LED car lamp intelligent drive circuit；
Fig. 2 is the electrical block diagram of the utility model LED car lamp intelligent drive circuit.
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should be appreciated that specific embodiment described herein is not used to limit this only to explain the utility model
Utility model.
In order to avoid the current driving direction in existing light direction and automobile is inconsistent, the brightness of car light can not be with environment
The change of brightness and change, and the wind speed of fan can not change etc. with the change of environment temperature and be caused directly or indirectly traffic
Accident or the life-span for influenceing car light, the utility model provides a solution, effectively can try to forestall traffic accidents and extend
The life-span of car light.
Shown in reference picture 1 and Fig. 2, a kind of LED car lamp intelligent drive circuit that the utility model preferred embodiment is proposed, institute
LED car lamp is stated on lamp plate, the lamp plate is provided with radiator and fan, the LED car lamp and is connected with motor, described
LED car lamp intelligent drive circuit includes：Vehicle running state sensor, AFS adaptation control circuits, the AFS are self-adaptive controlled
Circuit processed is connected with the vehicle running state sensor and the motor respectively, wherein：
The vehicle running state sensor, for detecting that vehicle travels relevant parameter, the vehicle travels relevant parameter
At least include：Vehicle heading, deflection efficiency and travel speed；
The AFS adaptation control circuits, phase is travelled for receiving the vehicle that the vehicle running state sensor is reported
Related parameter, travels relevant parameter according to the vehicle and controls the motor to carry out corresponding actions, to adjust the photograph of the LED car lamp
Penetrate direction.
It is achieved in the AFS adaptation functions of LED car lamp, it is ensured that light direction is consistent with the travel direction of automobile, reduces
The generation of traffic accident.
Compared with prior art, the utility model increases sensor in the driving circuit and a motor (is carried inside motor
Sensor control circuit), as long as this circuit, which is connected to LED+ and LED- on motor, can just realize AFS self adaptations, wherein, headlight
On motor according to vehicle steering angle, vehicle yaw rate and travel speed, dynamic regulation constantly is carried out to headlight, adapts to work as
Preceding steering angle, keeps light direction consistent with the current driving direction of automobile, to ensure to provide optimal illumination to road ahead
And best visibility is provided to driver, it can automatically adjust the deflection of headlight according to road speed, steering angle etc., so as to
The region of " not reaching " can be illuminated in advance there is provided comprehensive emergency lighting, so as to significantly enhance the peace driven in dark
Quan Xing.In road conditions of the road surface without (weak) lamp or many bends, expand the visual field of driver, and other side Lai Che can be reminded in advance.
In addition, the utility model can realize thermal protector detection, NTC thermistor detection, brightness continuously adjust function,
Wind speed automatic regulation function, realizes that the driving of LED car lamp is intelligent.
Specifically, function is continuously adjusted for brightness, the LED car lamp intelligent drive circuit also includes：Brightness is continuously adjusted
Economize on electricity and continuously adjusts the light sensor that circuit is connected at road with the brightness, wherein：
The light sensor, the change for sensing outside vehicle ambient brightness, and continuously adjust electricity to the brightness
Road sends induced signal；
The brightness continuously adjusts circuit, for adjusting the LED car lamp according to the induced signal of the light sensor
The output current of intelligent drive circuit, controls the brightness of the LED car lamp to change with the brightness of environment and change.
The utility model brightness, which continuously adjusts circuit, can realize that brightness continuously adjusts function.By light sensor to outside
The sensing of ambient brightness, driving can automatically adjust output current, it is achieved thereby that the brightness of headlight becomes with the brightness of environment
Change and change.When environment is brighter, driving output current can be reduced, and headlight can be dimmed；When environment is dark, driving output
Electric current increases, and headlight can brighten.
As shown in Fig. 2 brightness, which continuously adjusts the element that circuit is related to, R20, R21, NTC, Cntc, its principle is：
NTC changes the photo resistance of negative temperature into, and when the illumination of environment gradually increases, NTC resistances diminish, and partial pressure is also gradually
Diminish, so that the electric current of output is tapered into, LED luminance gradually step-down；When the illumination of environment is gradually reduced, NTC resistances increase
Greatly, partial pressure also gradually increases, so that output current also gradually increases.
For wind speed automatic regulation function, the LED car lamp intelligent drive circuit also includes：Wind speed auto-adjusting circuit and
Temperature sensor, the wind speed auto-adjusting circuit is connected with the temperature sensor and fan respectively, wherein：
The temperature sensor, sends for detecting outside vehicle environment temperature, and to the wind speed auto-adjusting circuit
The temperature signal of detection；
The wind speed auto-adjusting circuit, the input voltage for controlling the fan according to the temperature signal, to adjust
Save the rotating speed of the fan.
Wherein, wind speed auto-adjusting circuit can realize wind speed automatic regulation function, control fan defeated by temperature sensor
Enter voltage, to change the rotating speed of fan.When environment temperature is less than a certain value, fan is stopped, with the rise of temperature, fan
Input voltage gradually increase, rotating speed also gradually increases；Until input voltage is 12VDC, rotation speed of the fan keeps constant.
As shown in Fig. 2 the element that wind speed auto-adjusting circuit is related to has：Q10, NTC, when environment temperature gradually rises
When, NTC resistances are gradually reduced, and partial pressure is gradually reduced, and the voltage that fan is provided gradually increases, and the wind speed of fan also gradually increases.
Function is detected for thermal protector, the LED car lamp intelligent drive circuit also includes：Thermal protector, wherein：
The thermal protector is connected with the fan, the test point temperature for detecting the radiator, is dissipated according to described
The output power of power supply of LED car lamp intelligent drive circuit described in the test point temperature control of hot device.
Specifically, the thermal protector is more than or equal to the first preset value (such as in the test point temperature of the radiator
40 DEG C) when, the thermal protector is in closure state, in the fan normal work, controls the output power of power supply to be
Full load condition, in the fan abnormal work, controls the output power of power supply gradually to reduce；In the detection of the radiator
When point temperature is less than the first preset value, the thermal protector is off, and the fan is stopped, output power of power supply
For full load condition.
Illustrated using the first preset value as 40 DEG C：
Assuming that：
1. it is 1 that fan, which is in normal operating conditions instruction, fan is stopped status command for 0；
2. radiator test point temperature is more than or equal to 40 DEG C, it is 1 that thermal protector, which is in closure state instruction,；Radiator
When test point temperature is less than 40 DEG C, it is 0 that thermal protector, which is off instruction,
3. it is 1 that output power of power supply, which is fully loaded with Po states, power output is that 0.6Po states are 0.
Different conditions logical relation is as follows：
| Fan | Radiator temperature | Power output |
| 1 | 1 | 1 |
| 1 | 0 | 0 |
| 0 | 1 | 0 |
| 0 | 0 | 1 |
As shown in Fig. 2 the circuit element that the detection of the utility model thermal protector is related to includes：Q10、Q9、Q8；Its principle
For：
When fan normal work, fan internal circuit Q10 is in closure state, and alarm signal are low level, three
Pole pipe Q9 ends, Q8 conductings, the fully loaded output of power supply；When fan due to abend work when, alarm signal be high level,
Triode Q9 is turned on, Q8 cut-offs, and output power of power supply is 0.6Po.
Function is detected for thermistor, the LED car lamp intelligent drive circuit also includes：Thermistor detects circuit,
Wherein：
The thermistor detects circuit, is more than or equal to the second preset value for the test point temperature in the radiator
When (such as 70 DEG C), the output power of power supply is controlled to be tapered into temperature rise, until being zero.Wherein, second preset
Value is more than the first preset value.
It is 70 DEG C as 40 DEG C, the second preset value using the first preset value to be illustrated：
Assuming that：
1. lamp substrate detection temperature is more than or equal to 70 DEG C, programmed instruction is 1；Lamp substrate detection temperature is less than 70 DEG C
When, programmed instruction is 0；
2. output power of power supply is 1 when being fully loaded with Po states；Output power of power supply is tapered into temperature rise, and program refers to
Writ state is 0.
Different conditions logical relation is as follows：
| Lamp substrate temperature | Power output |
| 0 | 1 |
| 1 | 0 |
As shown in Fig. 2 the element that thermistor detection circuit is related to has R20, R21, NTC, Cntc, its principle is：
When the temperature increases, NTC resistances can decline, and partial pressure can be reduced, so that output current can be reduced；When normal temperature, electricity
Source full power output；When the temperature decreases, NTC resistances can increase, and partial pressure can also increase, and electric current can increase.
It should be noted that：
Thermal protector is detected and NTC thermistor detects that this two functions are not clashed mutually, when radiator inspection
When measuring point temperature is less than 40 DEG C, thermal protector is off, and fan is stopped, the fully loaded output of power supply, now lamp substrate
Temperature can also be less than 40 DEG C (see Fig. 2)；When radiator test point temperature is more than or equal to 40 DEG C, thermal protector is in closed form
State, fan normal work, the fully loaded output of power supply, if fan is broken or blocked, output power of power supply is down to half；With ring
The rise of border temperature, lamp substrate temperature is equal to or more than 70 DEG C, power supply output work also with rise to lamp substrate detection temperature
Rate is tapered into temperature rise, until being zero.
Further, the LED car lamp intelligent drive circuit also includes：Short-circuit protection circuit, reverse polarity protection circuit
And excess voltage protection.
Specifically：
1st, protection to error-polarity connection：Driving power supply applies 14 ± 0.1VDC backward voltage to input under no-load condition
1min, driving is not in exception.
2. overvoltage protection：Power supply applies 18 ± 0.2VDC voltage to power-supply controller of electric input in the case of band is carried
60min, driving is not in exception.
3.EMC is tested：AECQ-100 standards can be met.
4. with short-circuit protection function：If exception occurs in output end, cause to export both positive and negative polarity short circuit, this product can start
Short-circuit protection function, will not cause permanent damage because of this exception.
Reference picture 2, the electrical feature of LED car lamp intelligent drive circuit of the present utility model is as follows：
Input voltage：9VDC~18VDC (standard 12VDC)；
Maximal input：26W；
Output parameter：3.2~20VDC, 1000MA, can realize two-way constant current output
Output no-load voltage：38V；
Delivery efficiency：>=82%.
The utility model passes through such scheme, it is possible to achieve the AFS adaptation functions of LED car lamp, it is ensured that light direction with
The travel direction of automobile is consistent, reduces the generation of traffic accident；In addition, the utility model can be realized, thermal protector is detected,
NTC thermistor detection, brightness continuously adjust function, wind speed automatic regulation function, it is possible to achieve the driving intelligence of LED car lamp
Change.
It should be noted that above-mentioned each circuit can control, completion LED car mutually coordinated to realize by total controller
The intelligent drives of lamp.
In addition, the utility model also proposes a kind of LED car lamp intelligent drive device, including LED car lamp, the LED is installed
The lamp plate of car light, is arranged on the lamp plate, the radiator for being radiated to the LED car lamp, is arranged on the lamp plate
On fan, connect the motor of the LED car lamp, and the LED car lamp intelligent drive circuit described in above-described embodiment.
Preferred embodiment of the present utility model is these are only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical fields, are similarly included in scope of patent protection of the present utility model.
Claims (9)
1. a kind of LED car lamp intelligent drive circuit, it is characterised in that the LED car lamp is arranged on lamp plate, is set on the lamp plate
Have and motor is connected with radiator and fan, the LED car lamp, the LED car lamp intelligent drive circuit includes：Vehicle travels shape
State sensor, AFS adaptation control circuits, the AFS adaptation control circuits respectively with the vehicle running state sensor
And the motor connection, wherein：
The vehicle running state sensor, for detecting that vehicle travels relevant parameter, the vehicle traveling relevant parameter is at least
Including：Vehicle heading, deflection efficiency and travel speed；
The AFS adaptation control circuits, for receiving the related ginseng of vehicle traveling that the vehicle running state sensor is reported
Number, travels relevant parameter according to the vehicle and controls the motor to carry out corresponding actions, to adjust the irradiation side of the LED car lamp
To.
2. LED car lamp intelligent drive circuit according to claim 1, it is characterised in that the LED car lamp intelligent drives electricity
Road also includes：Brightness continuously adjusts circuit and continuously adjusts the light sensor that circuit is connected with the brightness, wherein：
The light sensor, the change for sensing outside vehicle ambient brightness, and continuously adjust circuit hair to the brightness
Send induced signal；
The brightness continuously adjusts circuit, for adjusting the LED car lamp intelligence according to the induced signal of the light sensor
The output current of drive circuit, controls the brightness of the LED car lamp to change with the brightness of environment and change.
3. LED car lamp intelligent drive circuit according to claim 1, it is characterised in that the LED car lamp intelligent drives electricity
Road also includes：Wind speed auto-adjusting circuit and temperature sensor, the wind speed auto-adjusting circuit respectively with the TEMP
Device and fan connection, wherein：
The temperature sensor, is detected for detecting outside vehicle environment temperature, and being sent to the wind speed auto-adjusting circuit
Temperature signal；
The wind speed auto-adjusting circuit, the input voltage for controlling the fan according to the temperature signal, to adjust
State the rotating speed of fan.
4. LED car lamp intelligent drive circuit according to claim 1, it is characterised in that the LED car lamp intelligent drives electricity
Road also includes：Thermal protector, wherein：
The thermal protector is connected with the fan, the test point temperature for detecting the radiator, according to the radiator
Test point temperature control described in LED car lamp intelligent drive circuit output power of power supply.
5. LED car lamp intelligent drive circuit according to claim 4, it is characterised in that the thermal protector is additionally operable to,
When the test point temperature of the radiator is more than or equal to the first preset value, the thermal protector is in closure state, described
During fan normal work, it is full load condition to control the output power of power supply, in the fan abnormal work, controls the electricity
Source power output is gradually reduced；When the test point temperature of the radiator is less than the first preset value, the thermal protector is in
Off-state, the fan is stopped, and output power of power supply is full load condition.
6. LED car lamp intelligent drive circuit according to claim 5, it is characterised in that the LED car lamp intelligent drives electricity
Road also includes：Thermistor detects circuit, wherein：
The thermistor detects circuit, during for the test point temperature in the radiator more than or equal to the second preset value,
The output power of power supply is controlled to be tapered into temperature rise, until being zero.
7. the LED car lamp intelligent drive circuit according to any one of claim 1-6, it is characterised in that the LED car lamp
Intelligent drive circuit also includes：Short-circuit protection circuit.
8. the LED car lamp intelligent drive circuit according to any one of claim 1-6, it is characterised in that the LED car lamp
Intelligent drive circuit also includes：Reverse polarity protection circuit and excess voltage protection.
9. a kind of LED car lamp intelligent drive device, it is characterised in that including LED car lamp, install the lamp plate of the LED car lamp, if
Put on the lamp plate, the radiator for being radiated to the LED car lamp, be arranged on the fan on the lamp plate, connect
The motor of the LED car lamp, and the LED car lamp intelligent drive circuit any one of claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720017932.6U CN206317736U (en) | 2017-01-06 | 2017-01-06 | LED car lamp intelligent drive circuit and drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720017932.6U CN206317736U (en) | 2017-01-06 | 2017-01-06 | LED car lamp intelligent drive circuit and drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206317736U true CN206317736U (en) | 2017-07-11 |
Family
ID=59261547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720017932.6U Expired - Fee Related CN206317736U (en) | 2017-01-06 | 2017-01-06 | LED car lamp intelligent drive circuit and drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206317736U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109005616A (en) * | 2018-06-15 | 2018-12-14 | 广东光巨能汽配科技有限公司 | A kind of LED automobile distance light high-power driving power supply |
| CN109780498A (en) * | 2019-03-29 | 2019-05-21 | 上海应用技术大学 | A kind of vehicle LED headlight |
-
2017
- 2017-01-06 CN CN201720017932.6U patent/CN206317736U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109005616A (en) * | 2018-06-15 | 2018-12-14 | 广东光巨能汽配科技有限公司 | A kind of LED automobile distance light high-power driving power supply |
| CN109780498A (en) * | 2019-03-29 | 2019-05-21 | 上海应用技术大学 | A kind of vehicle LED headlight |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190128 Address after: Hainan Eco-Software Park A17 Block One Floor 4001, Hainan Old Town High-tech Industrial Demonstration Zone Patentee after: Hainan Hua Rong new energy auto testing Co., Ltd. Address before: 518055 Room 201, Building A, No. 1 Qianwan Road, Qianhai Shenzhen-Hong Kong Cooperation Zone, Shenzhen, Guangdong Province (Admitted to Shenzhen Qianhai Business Secretary Co., Ltd.) Patentee before: SHENZHEN HUAYAO VEHICLE LAMP TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20210106 |