CN113311629A - Refractive index adjusting system and method for vehicle-mounted sun shield - Google Patents
Refractive index adjusting system and method for vehicle-mounted sun shield Download PDFInfo
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- CN113311629A CN113311629A CN202110494691.5A CN202110494691A CN113311629A CN 113311629 A CN113311629 A CN 113311629A CN 202110494691 A CN202110494691 A CN 202110494691A CN 113311629 A CN113311629 A CN 113311629A
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- refractive index
- vehicle
- index adjusting
- control unit
- adjusting unit
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- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 13
- 239000012780 transparent material Substances 0.000 claims abstract description 10
- 238000002834 transmittance Methods 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 239000000126 substance Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J3/00—Antiglare equipment associated with windows or windscreens; Sun visors for vehicles
- B60J3/002—External sun shield, e.g. awning or visor
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/1503—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect caused by oxidation-reduction reactions in organic liquid solutions, e.g. viologen solutions
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/15—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on an electrochromic effect
- G02F1/153—Constructional details
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
- Laminated Bodies (AREA)
Abstract
The invention relates to a refractive index adjusting system and method for a vehicle-mounted sun visor, wherein the system comprises a power supply unit, a control unit and the sun visor; the sun shield comprises a refractive index adjusting unit and a transparent material layer, wherein the refractive index adjusting unit is a color changing material layer of the sun shield and is positioned between the two transparent material layers; the control unit is arranged above the sun shield; the control unit is connected with the refractive index adjusting unit. The power supply unit is used for providing electric power for the vehicle-mounted intelligent sun shield system; the control unit is used for applying voltage to the refractive index adjusting unit to adjust the transmissivity of the refractive index adjusting unit. The invention can change the refractive index of the sun visor by applying voltage; the system can keep the original sight range of the driver; the system can reduce the weight and thickness of the sun visor.
Description
Technical Field
The invention relates to a refractive index adjusting system and method for a vehicle-mounted sun shield.
Background
The intelligent device is diversified nowadays, and efficiency and quality can be effectively improved through intelligent transformation. Among them, vehicle-mounted intellectualization has become an important development direction. In a plurality of vehicle-mounted intelligent lifting directions, the sun visor serving as an essential component is not greatly improved, and the past sun visor design has no other intelligent lifting on the whole except for the application of increasing storage space and light and the like. In addition, there is a problem of blocking the driving sight line while using the sun visor. Therefore, a sun visor capable of providing a good sun shading effect and achieving intellectualization is an important research direction.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a refractive index adjusting system and method for a vehicle-mounted sun visor, which can change the refractive index of a medium through a special medium layer and adjust the intensity of light rays transmitted by the sun visor.
In order to achieve the above purposes, the technical scheme adopted by the invention is as follows:
a refractive index adjusting system of a vehicle-mounted sun visor comprises a power supply unit, a control unit and the sun visor; the sun shield comprises a refractive index adjusting unit and a transparent material layer, wherein the refractive index adjusting unit is a color changing material layer of the sun shield and is positioned between the two transparent material layers; the control unit is arranged above the sun shield; the control unit is connected with the refractive index adjusting unit.
The power supply unit is used for providing electric power for the vehicle-mounted intelligent sun shield system; the control unit is used for applying voltage to the refractive index adjusting unit to adjust the transmissivity of the refractive index adjusting unit.
The transparent material layer is silicon dioxide or resin.
The color-changing material layer is of an ultraviolet essence type.
A refractive index adjusting method for a vehicle-mounted sun visor utilizes the system and comprises the following steps:
the control unit applies voltage to the refractive index adjusting unit to adjust the transmittance of the refractive index adjusting unit; when adjusting the transmittance, the voltage value to be applied to achieve the target transmittance is determined according to the following relationship: y is 0.12x1+1, wherein y represents the density in Kg/m3；x1Represents a voltage in units ofV；
The density versus transmission relationship is as follows: y is-1.45 x2+14.06, wherein y represents the density in Kg/m3；x2Indicating the transmittance.
The invention has the beneficial effects that:
1. the invention can change the refractive index of the sun visor by applying voltage;
2. the system can keep the original sight range of the driver;
3. the system of the invention can reduce the weight and thickness of the sun visor.
Drawings
The invention has the following drawings:
FIG. 1 is a block diagram of the system of the present invention.
FIG. 2 is a schematic view of a visor configuration.
FIG. 3 is a schematic diagram showing the density change of the color-changing material in low and high electric states.
FIG. 4 is a graph illustrating transmittance versus density of a color change material.
FIG. 5-1 is a schematic diagram of a first power supply mode.
Fig. 5-2 is a schematic diagram of a second power supply type.
Fig. 6 is a schematic view of the position of the visor and control unit.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-6, the refractive index adjusting system for a vehicle-mounted sun visor according to the present invention comprises a power supply unit, a control unit and a sun visor; the sun shield comprises a refractive index adjusting unit and a transparent material layer, wherein the refractive index adjusting unit is a color changing material layer of the sun shield and is positioned between the two transparent material layers; the control unit is arranged above the sun shield;
the control unit is connected with the refractive index adjusting unit.
The power supply unit is used for providing electric power for the vehicle-mounted intelligent sun shield system;
the control unit is used for applying voltage to the refractive index adjusting unit to adjust the transmissivity of the refractive index adjusting unit.
The power supply unit provides overall electric energy for the system unit, and the control unit can convert the control command into voltage intensity according to requirements and transmit the variable voltage to the refractive index adjusting unit. The refractive index adjusting unit changes the arrangement density to form the change of the refractive index of the medium due to different obtained energy intensity, thereby influencing transmitted luminosity.
As shown in fig. 2, the sun visor is made of three layers of media, 1 and 3 of which the outer layers are transparent media (silica, resin, etc.) and 2 of which the inner layer is a color-changing material (violet, etc.). When the color-changing material obtains energy (electric energy, heat energy and the like), the relation between the arrangement structure and the density is changed, so that the refractive index of the medium is changed. The performance of transmitted light can be reduced or improved by changing the refractive index of the medium, so that the application function of changing the shading intensity is realized.
As shown in fig. 3, when the voltage is constant, the substances of the color-changing material layer are stably and uniformly aligned, and the alignment changes when energy is applied from the outside. (when a voltage is applied, the voltage and the density are expressed in the following relationship: y is 0.12 ×)1+1, wherein y represents the density in Kg/m3；x1Representing voltage in units of V. ) Wherein, when the lower energy or no energy is given, the substance arrangement state of the color-changing material layer is looser and the gaps are larger. When higher energy is given, the volume is increased due to the energy taken by the substance, and the substance of the color-changing material layer is laterally expanded due to the restriction relationship of the two layers of the transparent medium. The density change is formed by expanding the gap between the two substances, and the refractive index is changed at the same time. Therefore, the light that can be transmitted also changes, and the human eye visually shows a change in the intensity of the light.
As shown in fig. 4, the density and the transmittance have an inverse relationship, and the greater the density, the weaker the light that can be transmitted, and the smaller the transmittance; conversely, a lower density indicates a looser shielding of the medium from light, and a higher transmittance. The concrete relation is as follows:
y＝-1.45x2+14.06, wherein y represents the density in Kg/m3；x2Indicating the transmittance.
As shown in FIGS. 5-1 and 5-2, the energy is supplied by electric energy, which can be divided into two types of power supply. One is to have metal plates at both ends for external electrodes, and to give positive and negative electricity, respectively. When the power is on, the two sides conduct energy from the electrode part to the center respectively, so that the refractive index is gradually changed from two sides to the center. The other is through a single-side electrode, which will expand outward from the conductive portion when energy is applied.
Fig. 6 is a schematic view of the sun visor assembly. The control unit receives the data from the optical sensor unit, calculates and analyzes the data, converts the data into a voltage value and connects the output end to the conductive copper foil part above the assembly. The conductive copper foil engages the conductive strips (conductive metal) to uniformly conduct voltage to the wire section edges at the top of the assembly. When the output voltage is changed, the refractive index of the sun-shading board light-transmitting component is changed, and then the transmission light source is adjusted.
The above embodiments are merely illustrative, and not restrictive, and those skilled in the relevant art can make various changes and modifications without departing from the spirit and scope of the invention, and therefore all equivalent technical solutions also belong to the scope of the invention.
Those not described in detail in this specification are within the skill of the art.
Claims (5)
1. An on-vehicle sun visor refractive index adjustment system, comprising: the sun shield comprises a power supply unit, a control unit and a sun shield; the sun shield comprises a refractive index adjusting unit and a transparent material layer, wherein the refractive index adjusting unit is a color changing material layer of the sun shield and is positioned between the two transparent material layers; the control unit is arranged above the sun shield; the control unit is connected with the refractive index adjusting unit.
2. The refractive index adjustment system for a vehicle sun visor of claim 1, wherein: the power supply unit is used for providing electric power for the vehicle-mounted intelligent sun shield system; the control unit is used for applying voltage to the refractive index adjusting unit to adjust the transmissivity of the refractive index adjusting unit.
3. The refractive index adjustment system for a vehicle sun visor of claim 1, wherein: the transparent material layer is silicon dioxide or resin.
4. The refractive index adjustment system for a vehicle sun visor of claim 1, wherein: the color-changing material layer is of an ultraviolet essence type.
5. A method for adjusting refractive index of a vehicle-mounted sun visor by applying the system for adjusting refractive index of a vehicle-mounted sun visor according to any one of claims 1 to 4, comprising the steps of:
the control unit applies voltage to the refractive index adjusting unit to adjust the transmittance of the refractive index adjusting unit; when adjusting the transmittance, the voltage value to be applied to achieve the target transmittance is determined according to the following relationship: y is 0.12x1+1, wherein y represents the density in Kg/m3；x1Represents voltage in units of V;
the density versus transmission relationship is as follows: y is-1.45 x2+14.06, wherein y represents the density in Kg/m3；x2Indicating the transmittance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110494691.5A CN113311629A (en) | 2021-05-07 | 2021-05-07 | Refractive index adjusting system and method for vehicle-mounted sun shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110494691.5A CN113311629A (en) | 2021-05-07 | 2021-05-07 | Refractive index adjusting system and method for vehicle-mounted sun shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113311629A true CN113311629A (en) | 2021-08-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110494691.5A Pending CN113311629A (en) | 2021-05-07 | 2021-05-07 | Refractive index adjusting system and method for vehicle-mounted sun shield |
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| CN (1) | CN113311629A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203945946U (en) * | 2014-02-18 | 2014-11-19 | 比亚迪股份有限公司 | Vehicle and car visor system |
| CN104859408A (en) * | 2014-12-18 | 2015-08-26 | 北汽福田汽车股份有限公司 | Intelligent sun shading system |
| CN107685614A (en) * | 2017-08-24 | 2018-02-13 | 东风延锋（十堰）汽车饰件***有限公司 | A kind of automobile sun-shading glass and its sunshading method |
| CN109878304A (en) * | 2019-03-29 | 2019-06-14 | 合肥京东方光电科技有限公司 | Sunshading board, sunshading board control method and automobile |
| CN209514226U (en) * | 2019-02-21 | 2019-10-18 | 贵安新区新特电动汽车工业有限公司 | Luminosity adjustment device and vehicle-mounted glass based on graphene |
| CN110834523A (en) * | 2019-11-26 | 2020-02-25 | 奇瑞汽车股份有限公司 | Self-adaptive electronic sun shield and control method thereof |
| CN112339535A (en) * | 2020-10-28 | 2021-02-09 | 长春凯迪汽车车身设计有限公司 | Electrochromic car front windshield sunshading board |
-
2021
- 2021-05-07 CN CN202110494691.5A patent/CN113311629A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203945946U (en) * | 2014-02-18 | 2014-11-19 | 比亚迪股份有限公司 | Vehicle and car visor system |
| CN104859408A (en) * | 2014-12-18 | 2015-08-26 | 北汽福田汽车股份有限公司 | Intelligent sun shading system |
| CN107685614A (en) * | 2017-08-24 | 2018-02-13 | 东风延锋（十堰）汽车饰件***有限公司 | A kind of automobile sun-shading glass and its sunshading method |
| CN209514226U (en) * | 2019-02-21 | 2019-10-18 | 贵安新区新特电动汽车工业有限公司 | Luminosity adjustment device and vehicle-mounted glass based on graphene |
| CN109878304A (en) * | 2019-03-29 | 2019-06-14 | 合肥京东方光电科技有限公司 | Sunshading board, sunshading board control method and automobile |
| CN110834523A (en) * | 2019-11-26 | 2020-02-25 | 奇瑞汽车股份有限公司 | Self-adaptive electronic sun shield and control method thereof |
| CN112339535A (en) * | 2020-10-28 | 2021-02-09 | 长春凯迪汽车车身设计有限公司 | Electrochromic car front windshield sunshading board |
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Application publication date: 20210827 |