CN219856754U - Strong light protection device for night driving - Google Patents
Strong light protection device for night driving Download PDFInfo
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- CN219856754U CN219856754U CN202320031026.7U CN202320031026U CN219856754U CN 219856754 U CN219856754 U CN 219856754U CN 202320031026 U CN202320031026 U CN 202320031026U CN 219856754 U CN219856754 U CN 219856754U
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- voltage
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- dimming film
- crystal dimming
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 62
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 33
- 239000003990 capacitor Substances 0.000 claims description 18
- 230000004313 glare Effects 0.000 claims description 8
- 230000009466 transformation Effects 0.000 claims description 6
- 230000001012 protector Effects 0.000 claims 7
- 206010039203 Road traffic accident Diseases 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 206010034972 Photosensitivity reaction Diseases 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000005685 electric field effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000036211 photosensitivity Effects 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of night driving, in particular to a night driving strong light protection device. The device comprises a device body, wherein the device body comprises a liquid crystal dimming film, and the liquid crystal dimming film is arranged at a front windshield of an automobile; the liquid crystal dimming film is controlled by a regulating unit, and the regulating unit is used for regulating the transparency of the liquid crystal dimming film according to the ambient light intensity. In the utility model, when a driver runs at night, if the driver is irradiated by the far-reaching headlamp of the oncoming vehicle, the liquid crystal dimming film can effectively prevent eyes of the driver from being stimulated by strong light, so that traffic accidents are preferably avoided.
Description
Technical Field
The utility model relates to the technical field of night driving, in particular to a night driving strong light protection device.
Background
When a driver drives and runs at night and meets the opposite incoming vehicle, if the opposite incoming vehicle does not properly use the high beam lamp, the driver blinds, and the driving vision is temporarily lost, so that traffic accidents are further possibly caused.
Disclosure of Invention
The present utility model provides a night driving glare protection device which overcomes some or all of the disadvantages of the prior art.
The strong light protection device for night driving comprises a device body, wherein the device body comprises a liquid crystal dimming film, and the liquid crystal dimming film is arranged at a front windshield of an automobile; the liquid crystal dimming film is controlled by a regulating unit, and the regulating unit is used for regulating the transparency of the liquid crystal dimming film according to the ambient light intensity.
In the utility model, when a driver runs at night, if the driver is irradiated by the far-reaching headlamp of the oncoming vehicle, the liquid crystal dimming film can effectively prevent eyes of the driver from being stimulated by strong light, so that traffic accidents are preferably avoided;
specifically, the adjusting unit can control the transparency of the liquid crystal dimming film according to the environmental light intensity such as a high beam of an oncoming vehicle; that is, when the liquid crystal dimming film encounters strong light irradiation, the adjusting unit can reduce the transparency of the liquid crystal dimming film, so that the liquid crystal dimming film can better protect eyes of a driver, and better rely on a spectrum.
The liquid crystal dimming film is a mixed material of liquid crystal and polymer injected between two transparent conductive films, and under the condition of no electric field effect, the liquid crystal molecules inside the liquid crystal dimming film are in an irregular scattering state, at the moment, the liquid crystal dimming film is in a light-transmitting and opaque state, when current is applied, the liquid crystal molecules inside the liquid crystal dimming film are orderly arranged, light can freely penetrate, and the liquid crystal dimming film is converted from an opaque state to a transparent state.
Preferably, the adjusting unit comprises an adjusting circuit electrically connected with a boost circuit, the boost circuit is electrically connected with a vehicle-mounted power interface of the automobile, and the adjusting circuit comprises two photoresistors and a fixed-value resistor which are connected in series; the two ends of the liquid crystal dimming film are connected in parallel with the two ends of the photoresistor.
In the utility model, since the output voltage of the vehicle-mounted power supply of the automobile is 12V generally and the voltage required by the liquid crystal dimming film to reach the completely transparent state is 30V, the booster circuit is used for boosting the output voltage of the vehicle-mounted power supply of the automobile to the voltage required by the liquid crystal dimming film and enabling the liquid crystal dimming film to be in the completely transparent state to be in the initial state;
the photoresistor is used for changing the resistance value according to the light intensity of the environment so as to change the voltage; that is, when the photoresistor senses the light source, the resistance of the photoresistor is reduced, the voltage at two ends of the photoresistor is reduced, and the voltage of the liquid crystal dimming film connected with the photoresistor in parallel is also reduced, so that the liquid crystal dimming film becomes more fuzzy, and eyes of a driver are better protected;
wherein, the fixed value resistor can protect the circuit better.
Preferably, the booster circuit includes,
the voltage input circuit is provided with a power supply interface and a first voltage stabilizing circuit, the power supply interface is used for being connected with the vehicle-mounted power supply interface, and the first voltage stabilizing circuit is used for stably outputting the output voltage of the vehicle-mounted power supply and forming a first voltage;
the boost circuit is provided with a boost unit, and the boost unit is used for switching in the first voltage and outputting the second voltage;
the voltage transformation circuit is used for being connected with the boosting unit and changing the voltage value of the second voltage;
the voltage input circuit is provided with an output interface and a second voltage stabilizing circuit, the second voltage stabilizing circuit is used for stabilizing the second voltage and outputting and forming a third voltage, and the output interface is used for connecting the regulating circuit.
With the above configuration, the output voltage of the vehicle-mounted power supply is preferably boosted to a voltage required for the liquid crystal dimming film to reach the completely transparent state.
Preferably, the type of photoresistor is GL5527. Therefore, the photosensitivity of the photoresistor is better utilized to realize the control of the transparency of the liquid crystal dimming film.
Preferably, the fixed resistance has a value of 10kΩ. The circuit is preferably protected.
Preferably, the first voltage stabilizing circuit includes a first capacitor, a second capacitor and a third capacitor connected in parallel in sequence from the input end of the first voltage stabilizing circuit to the output end of the first voltage stabilizing circuit.
In the utility model, the input and output stability of the output voltage of the vehicle-mounted power supply is preferably ensured.
Preferably, the boosting unit includes an XL6019E1 boosting chip.
In the utility model, the output voltage of the vehicle-mounted power supply is preferably boosted to the voltage required by the liquid crystal dimming film to reach the completely transparent state.
Preferably, the voltage transformation circuit comprises a first resistor and a second resistor which are connected in parallel and then connected into the FB end of the XL6019E1 booster chip.
In the utility model, the boosting ratio of the XL6019E1 boosting chip is preferably controlled by controlling the first resistor and the second resistor.
Preferably, the second voltage stabilizing circuit includes a fourth capacitor, a fifth capacitor and a sixth capacitor connected in parallel in sequence from the input end of the second voltage stabilizing circuit to the output end of the second voltage stabilizing circuit.
In the utility model, the input and output stability of the second voltage is preferably ensured.
Drawings
Fig. 1 is a schematic diagram of a system block diagram of a device body in embodiment 1.
Fig. 2 is a circuit diagram of the adjusting circuit in embodiment 1.
Fig. 3 is a circuit schematic of the booster circuit in embodiment 1.
Fig. 4 is a schematic diagram of a liquid crystal light adjusting film in example 1.
Detailed Description
For a further understanding of the present utility model, the present utility model will be described in detail with reference to examples. It is to be understood that the examples are illustrative of the present utility model and are not intended to be limiting.
Example 1
As shown in fig. 1 to 4, the present embodiment provides a night running strong light protection device, which includes a device body including a liquid crystal dimming film for being disposed at a front windshield of an automobile; the liquid crystal dimming film is controlled by a regulating unit, and the regulating unit is used for regulating the transparency of the liquid crystal dimming film according to the ambient light intensity.
In the embodiment, when a driver runs at night, if the driver is irradiated by the far-reaching headlamp of the oncoming vehicle, the liquid crystal dimming film can effectively prevent eyes of the driver from being stimulated by strong light, so that traffic accidents are preferably avoided;
specifically, the adjusting unit can control the transparency of the liquid crystal dimming film according to the environmental light intensity such as a high beam of an oncoming vehicle; that is, when the liquid crystal dimming film encounters strong light irradiation, the adjusting unit can reduce the transparency of the liquid crystal dimming film, so that the liquid crystal dimming film can better protect eyes of a driver, and is better and reliable.
The liquid crystal dimming film is a mixed material of liquid crystal and polymer injected between two transparent conductive films, and under the condition of no electric field effect, the liquid crystal molecules inside the liquid crystal dimming film are in an irregular scattering state, at the moment, the liquid crystal dimming film is in a light-transmitting and opaque state, when current is applied, the liquid crystal molecules inside the liquid crystal dimming film are orderly arranged, light can freely penetrate, and the liquid crystal dimming film is converted from an opaque state to a transparent state.
As shown in fig. 2, in this embodiment, the adjusting unit includes an adjusting circuit electrically connected to a boost circuit, the boost circuit is electrically connected to a vehicle power interface of an automobile, and the adjusting circuit includes two photoresistors and a fixed resistor connected in series with each other; the two ends of the liquid crystal dimming film are connected in parallel with the two ends of the photoresistor.
In this embodiment, since the output voltage of the vehicle-mounted power supply of the automobile is generally 12V, and the voltage required by the liquid crystal dimming film to reach the completely transparent state is 30V, the booster circuit is configured to boost the output voltage of the vehicle-mounted power supply of the automobile to the voltage required by the liquid crystal dimming film, and make the liquid crystal dimming film in the completely transparent state be in the initial state;
the photoresistor is used for changing the resistance value according to the light intensity of the environment so as to change the voltage; that is, when the photoresistor senses the light source, the resistance of the photoresistor is reduced, the voltage at two ends of the photoresistor is reduced, and the voltage of the liquid crystal dimming film connected with the photoresistor in parallel is also reduced, so that the liquid crystal dimming film becomes more fuzzy, and eyes of a driver are better protected;
wherein, the fixed value resistor can protect the circuit better.
As shown in fig. 3, in the present embodiment, the booster circuit includes,
the voltage input circuit is provided with a power supply interface and a first voltage stabilizing circuit, the power supply interface is used for being connected with the vehicle-mounted power supply interface, and the first voltage stabilizing circuit is used for stably outputting the output voltage of the vehicle-mounted power supply and forming a first voltage;
the boost circuit is provided with a boost unit, and the boost unit is used for switching in the first voltage and outputting the second voltage;
the voltage transformation circuit is used for being connected with the boosting unit and changing the voltage value of the second voltage;
the voltage input circuit is provided with an output interface and a second voltage stabilizing circuit, the second voltage stabilizing circuit is used for stabilizing the second voltage and outputting and forming a third voltage, and the output interface is used for connecting the regulating circuit.
With the above configuration, the output voltage of the vehicle-mounted power supply is preferably boosted to a voltage required for the liquid crystal dimming film to reach the completely transparent state.
In fig. 3, the P1 interface is a power supply interface for accessing to a vehicle power supply interface, and the P2 interface is an output interface for accessing to an adjusting circuit.
In this embodiment, the type of the photoresistor is GL5527. Therefore, the photosensitivity of the photoresistor is better utilized to realize the control of the transparency of the liquid crystal dimming film.
In this embodiment, the value of the constant resistance is 10kΩ. The circuit is preferably protected.
In this embodiment, the first voltage stabilizing circuit includes a first capacitor, a second capacitor and a third capacitor sequentially connected in parallel from the input end of the first voltage stabilizing circuit to the output end of the first voltage stabilizing circuit.
In this embodiment, the input/output stability of the output voltage of the vehicle-mounted power supply is preferably ensured.
In this embodiment, the boosting unit includes an XL6019E1 boosting chip.
In this embodiment, it is therefore preferable to boost the output voltage of the vehicle-mounted power supply to the voltage required for the liquid crystal dimming film to reach the completely transparent state.
In this embodiment, the voltage transformation circuit includes two parallel first resistors and two parallel second resistors connected to the FB end of the XL6019E1 booster chip.
In this embodiment, the control of the boosting ratio of the XL6019E1 boosting chip is preferably realized by controlling the first resistor and the second resistor.
In this embodiment, the second voltage stabilizing circuit includes a fourth capacitor, a fifth capacitor and a sixth capacitor sequentially connected in parallel from the input end of the second voltage stabilizing circuit to the output end of the second voltage stabilizing circuit.
In this embodiment, the input/output stability of the second voltage is preferably ensured.
It is to be understood that, based on one or several embodiments provided in the present utility model, those skilled in the art may combine, split, reorganize, etc. the embodiments of the present utility model to obtain other embodiments, which do not exceed the protection scope of the present utility model.
The utility model and its embodiments have been described above by way of illustration and not limitation, and the examples are merely illustrative of embodiments of the utility model and the actual construction is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present utility model.
Claims (8)
1. The utility model provides a night driving highlight protection device which characterized in that: the device comprises a device body, wherein the device body comprises a liquid crystal dimming film, and the liquid crystal dimming film is arranged at a front windshield of an automobile; the liquid crystal dimming film is controlled by a regulating unit, and the regulating unit is used for regulating the transparency of the liquid crystal dimming film according to the ambient light intensity;
the adjusting unit comprises an adjusting circuit which is electrically connected with a boost circuit, the boost circuit is electrically connected with a vehicle-mounted power interface of an automobile, and the adjusting circuit comprises two photoresistors and fixed-value resistors which are connected in series; the two ends of the liquid crystal dimming film are connected in parallel with the two ends of the photoresistor.
2. The night travel glare protector according to claim 1, wherein: the voltage boosting circuit includes a voltage boosting circuit that,
the voltage input circuit is provided with a power supply interface and a first voltage stabilizing circuit, the power supply interface is used for being connected with the vehicle-mounted power supply interface, and the first voltage stabilizing circuit is used for stably outputting the output voltage of the vehicle-mounted power supply and forming a first voltage;
the boost circuit is provided with a boost unit, and the boost unit is used for switching in the first voltage and outputting the second voltage;
the voltage transformation circuit is used for being connected with the boosting unit and changing the voltage value of the second voltage;
the voltage input circuit is provided with an output interface and a second voltage stabilizing circuit, the second voltage stabilizing circuit is used for stabilizing the second voltage and outputting and forming a third voltage, and the output interface is used for connecting the regulating circuit.
3. The night travel glare protector according to claim 1, wherein: the model of the photoresistor adopts GL5527.
4. The night travel glare protector according to claim 1, wherein: the value of the constant resistance is 10k omega.
5. The night travel glare protector according to claim 2, wherein: the first voltage stabilizing circuit comprises a first capacitor, a second capacitor and a third capacitor which are sequentially connected in parallel from the input end of the first voltage stabilizing circuit to the output end of the first voltage stabilizing circuit.
6. The night travel glare protector according to claim 2, wherein: the boosting unit comprises an XL6019E1 boosting chip.
7. The night travel glare protector of claim 6, wherein: the voltage transformation circuit comprises a first resistor and a second resistor which are connected in parallel and then connected into the FB end of the XL6019E1 booster chip.
8. The night travel glare protector according to claim 2, wherein: the second voltage stabilizing circuit comprises a fourth capacitor, a fifth capacitor and a sixth capacitor which are sequentially connected in parallel from the input end of the second voltage stabilizing circuit to the output end of the second voltage stabilizing circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320031026.7U CN219856754U (en) | 2023-01-06 | 2023-01-06 | Strong light protection device for night driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320031026.7U CN219856754U (en) | 2023-01-06 | 2023-01-06 | Strong light protection device for night driving |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219856754U true CN219856754U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320031026.7U Active CN219856754U (en) | 2023-01-06 | 2023-01-06 | Strong light protection device for night driving |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219856754U (en) |
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2023
- 2023-01-06 CN CN202320031026.7U patent/CN219856754U/en active Active
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