WO2021117352A1 - Système de vitre de fenêtre et appareil de vitre de fenêtre - Google Patents

Système de vitre de fenêtre et appareil de vitre de fenêtre Download PDF

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Publication number
WO2021117352A1
WO2021117352A1 PCT/JP2020/039571 JP2020039571W WO2021117352A1 WO 2021117352 A1 WO2021117352 A1 WO 2021117352A1 JP 2020039571 W JP2020039571 W JP 2020039571W WO 2021117352 A1 WO2021117352 A1 WO 2021117352A1
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WIPO (PCT)
Prior art keywords
temperature
glass
window glass
heating wire
film
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Application number
PCT/JP2020/039571
Other languages
English (en)
Japanese (ja)
Inventor
哲司 入江
匠 御法川
林　英明
さよこ 森永
駿介 定金
Original Assignee
Ａｇｃ株式会社
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
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Application filed by Ａｇｃ株式会社 filed Critical Ａｇｃ株式会社
Priority to JP2021563773A priority Critical patent/JP7511129B2/ja
Priority to DE112020006068.3T priority patent/DE112020006068T5/de
Publication of WO2021117352A1 publication Critical patent/WO2021117352A1/fr

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    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/023—Industrial applications
    • H05B1/0236—Industrial applications for vehicles
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/013—Heaters using resistive films or coatings
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/014—Heaters using resistive wires or cables not provided for in H05B3/54

Definitions

  • the present invention relates to a window glass system and a window glass device.
  • a first synthetic resin window material (glazing), a first laminated intermediate layer made of a polymer material, a second laminated intermediate layer made of a polymer material, and a flexible OLED (Organic Light).
  • a window structure for a transport vehicle in which an Emitting Diode) element or screen, a third laminated intermediate layer made of a polymer material, and a second synthetic resin window material are laminated (see, for example, Patent Document 1).
  • the OLED element included in the conventional window structure for a transportation vehicle may be difficult for the OLED element included in the conventional window structure for a transportation vehicle to obtain element characteristics such as stable display in a high temperature environment where the temperature is high to some extent.
  • the conventional window structure for transport vehicles has a means for heating the window glass, the temperature is not particularly controlled.
  • the problem in such a high temperature environment is the same not only for OLEDs but also for organic elements made of organic materials.
  • the window glass system includes a window glass attached to a moving body, a device provided on the window glass and including an organic element made of an organic material, and a temperature sensor for detecting the temperature of the window glass. Based on the temperature and humidity sensor that detects the temperature and humidity in the vehicle interior of the moving body, the glass temperature detected by the temperature sensor, and the temperature and humidity in the vehicle interior detected by the temperature and humidity sensor. When it is determined whether the glass temperature exceeds the dew point temperature and it is determined that the glass temperature is equal to or lower than the dew point temperature, the heating wire or the heating film or the defroster attached to the window glass is energized and detected by the temperature sensor.
  • the glass includes a control unit having a circuit for turning off the heating wire or the heating film or turning off the defroster when the temperature of the glass exceeds a predetermined temperature.
  • FIG. It is a figure which shows the vehicle which mounted the window glass system of Embodiment 1.
  • FIG. It is a figure which shows the window glass system of Embodiment 1.
  • FIG. It is a figure which shows the flowchart which shows the process which a control part executes.
  • It is a figure which shows the arrangement of a HUD It is a figure which shows the arrangement of a HUD.
  • FIG. 1 is a diagram showing an example of a vehicle 10 equipped with the window glass system 100 of the first embodiment.
  • the window glass system 100 is attached to the vehicle 10 as a windshield as an example.
  • the vehicle 10 includes a defroster 20 as an example.
  • the defroster 20 is a device that, when activated, blows air that has been dehumidified and heated by the air conditioner toward the window glass system 100 to remove fogging.
  • the vehicle 10 is, for example, an vehicle such as an EV (Electric Vehicle) vehicle, a PHV (Plug-in Hybrid Vehicle) vehicle, an HV (Hybrid Vehicle) vehicle, a gasoline vehicle, or a diesel vehicle. Further, the vehicle 10 may be a train or a train.
  • the vehicle 10 is an example of a moving body that carries and moves an occupant.
  • the window glass system 100 may be attached to a moving body (for example, an aircraft, a helicopter, etc.) other than the vehicle 10.
  • a moving body for example, an aircraft, a helicopter, etc.
  • FIG. 2 is a diagram showing an example of the window glass system 100 of the first embodiment.
  • FIG. 2 shows a configuration in which the window glass system 100 is viewed from the vehicle 10 (see FIG. 1) side.
  • the window glass system 100 includes a window glass 110, an OLED display 120, a heating wire 130, a switch 140, and a control unit 150 (temperature sensor 150A, temperature / humidity sensor 150B, control unit 150C).
  • a power supply 160H is connected to the heating wire 130, and a power supply 160L and an ECU (Electronic Control Unit) 170 are connected to the control unit 150.
  • the window glass system 100 excluding the control unit 150 is an example of the window glass device.
  • the window glass system 100 includes the window glass 110
  • the window glass system 100 may include a glass other than the window glass 110 instead of the window glass 110.
  • the window glass 110 has a glass body 111.
  • the window glass 110 may further have a ceramic layer 112.
  • the glass body 111 may be a laminated glass in which an interlayer film is sealed.
  • the ceramic layer 112 is preferably provided along the periphery of the glass body 111 on the surface of the glass body 111 on the vehicle interior (inside the vehicle 10) side.
  • the ceramic layer 112 is, for example, a fired body of a dark ceramic paste, for the purpose of preventing the adhesive from being deteriorated by ultraviolet rays while the glass body 111 is adhered to the vehicle 10, and the glass body from the outside of the vehicle 10. It is formed to improve the appearance so that the connecting portion between the 111 and the vehicle body cannot be seen.
  • the central portion 111A of the glass body 111 not provided with the ceramic layer 112 is a transparent portion.
  • the ceramic layer is preferably provided so as to be in contact with the interlayer film or on the surface of the glass body 111 on the vehicle interior side.
  • the OLED display 120 is provided so as to be located below the front of the driver's seat.
  • the OLED display 120 since the vehicle 10 (see FIG. 1) is a right-hand drive vehicle, the OLED display 120 is located on the lower left side of the glass body 111 when the vehicle 10 is viewed from the front. The left side of the vehicle 10 as seen from the front is the right side of the vehicle 10 in the traveling direction.
  • the OLED display 120 may be provided on the lower right side of the glass body 111 when the vehicle 10 is viewed from the front.
  • the OLED display 120 is preferably provided so as to be sandwiched between interlayer films.
  • the OLED display 120 displays information indicating the vehicle speed and the state of the vehicle 10 to the driver.
  • the OLED display 120 is not limited to such a form, and may display various images, for example.
  • the position and size of the OLED display 120 are not limited to those shown in FIG. 2, and may be located at any position on the glass body 111, or may be provided on substantially the entire surface of the glass body 111.
  • the heating wire 130 is preferably provided on the surface of the central portion 111A of the glass body 111 on the vehicle interior side.
  • the heating wire 130 is, for example, a tungsten wire, and is connected to the terminal 131.
  • the heating wire 130 may be a silver conducting wire.
  • the terminal 131 is, for example, a bus bar made of silver foil printed with silver (Ag).
  • the heating wire 130 is provided over the entire range shown by the broken line in FIG.
  • the range in which the heating wire 130 shown by the broken line in FIG. 2 is provided is an example of a heating region heated by the heating wire 130.
  • One terminal 131 (left in the figure) is connected to the switch 140, and the other terminal 131 (right in the figure) is connected to the power supply 160H.
  • the heating wire 130 exists between two pieces of glass and is sandwiched between an interlayer film for adhering the two pieces of glass.
  • the heating wire 130 may be provided on the ceramic layer 112.
  • the heating wire 130 may be replaced with a heating film.
  • the electric heating film is preferably provided at the central portion 111A of the glass body 111.
  • the electric heating film is an ITO (Indium Tin Oxide) film as an example, and may be connected to the terminal 131.
  • the switch 140 may be provided on the ceramic layer 112 on the surface of the glass body 111 on the vehicle interior side.
  • the switch 140 is inserted in series between the heating wire 130 or one terminal connected to the heating film and the ground potential point of the vehicle 10.
  • the on / off of the switch 140 is switched by the control unit 150.
  • the switch 140 may not be provided, and the control unit 150 may put the heating wire 130 or the heating film attached to the window glass 110 into an energized state (on) or a non-energized state (off).
  • the control unit 150 may be provided on the surface of the central portion 111A of the glass body 111 on the vehicle interior side.
  • the control unit 150 includes a control unit 150C, a temperature sensor 150A, and a temperature / humidity sensor 150B.
  • the control unit 150C turns the heating wire 130 or the heating film attached to the window glass 110 into an energized state (on) or a non-energized state (off).
  • the temperature sensor 150A and the temperature / humidity sensor 150B are preferably provided on one surface of the window glass 110.
  • the temperature sensor 150A and the temperature / humidity sensor 150B are preferably provided on the ceramic layer 112 provided on one surface of the window glass 110.
  • the temperature sensor 150A and the temperature / humidity sensor 150B are preferably provided at the lower part of the glass body 111.
  • the temperature sensor 150A and the temperature / humidity sensor 150B are preferably provided on the lower side of the central portion 111A of the glass body 111 near the boundary with the ceramic layer 112. Further, the temperature sensor 150A is preferably provided within the range (heating region) where the heating wire 130 shown by the broken line in FIG. 2 is provided. This is to measure the temperature of the glass body 111 being heated by the heating wire 130.
  • the control unit 150 may further have a housing 151.
  • the housing 151 houses the control unit 150C, the temperature sensor 150A, and the temperature / humidity sensor 150B inside. Power is supplied from the power supply 160L to the control unit 150C, the temperature sensor 150A, and the temperature / humidity sensor 150B.
  • the control unit 150 may be fixed on the ceramic layer 112. In this case, the housing 151 may be fixed on the ceramic layer 112.
  • the control unit 150C is realized by a computer (circuit) including a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), an internal bus, and the like.
  • the control unit 150C determines whether or not the temperature of the glass body 111 has reached the dew point temperature based on the temperature of the glass body 111 detected by the temperature sensor 150A and the temperature and humidity in the vehicle interior detected by the temperature / humidity sensor 150B.
  • the heating wire 130 or the heating film is turned on (on), and when the temperature of the glass body 111 exceeds a predetermined temperature, the heating wire 130 is turned off (off).
  • the temperature of the glass body 111 detected by the temperature sensor 150A will be referred to as a glass temperature.
  • the contents of control by the control unit 150C will be described later.
  • the control unit 150C may be connected to any one of a plurality of ECUs (Electronic Control Units) mounted on the vehicle 10 via a network via the ECU 170.
  • ECUs Electronic Control Units
  • the window glass system 100 can be operated in cooperation with the air conditioner. Further, the power of the entire window glass system 100 may be turned on / off by an operation unit such as an air conditioner.
  • the temperature sensor 150A detects the glass temperature.
  • the temperature sensor 150A is preferably in contact with the glass body 111.
  • the temperature / humidity sensor 150B detects the temperature and humidity in the vehicle interior of the moving body.
  • the temperature / humidity sensor 150B may be provided on the glass main body 111, but it is more preferable that the temperature / humidity sensor 150B is separated from the glass main body 111.
  • As the temperature / humidity sensor 150B a temperature sensor and a humidity sensor integrated as one chip can be used.
  • the temperature sensor 150A and the temperature / humidity sensor 150B are connected to the control unit 150C, and output data representing the detected glass temperature, the temperature inside the vehicle interior, and the humidity inside the vehicle interior to the control unit 150C.
  • a separate temperature sensor and humidity sensor may be used instead of the temperature / humidity sensor 150B.
  • a temperature sensor that detects the temperature inside the vehicle interior for example, a thermocouple can be used.
  • a humidity sensor that detects the humidity in the vehicle interior for example, a sensor that outputs the resistance value of the element that changes according to the change in humidity or a sensor that outputs the capacitance of the element that changes according to the change in humidity is used. be able to.
  • the power supply 160H is connected between the other terminal 131 connected to the heating wire 130 and the battery and / or generator of the vehicle 10, and the electric power supplied from the battery and / or the generator is supplied to the heating wire 130. Alternatively, it is supplied to the electric heating film.
  • the output voltage of the power supply 160H is higher than the output voltage of the power supply 160L.
  • the power supply 160H supplies electric power having a voltage of 12V to the heating wire 130 as an example.
  • the power supply 160L is connected between the control unit 150 and the battery and / or generator of the vehicle 10, and supplies the electric power supplied from the battery and / or the generator to the control unit 150.
  • the output voltage of the power supply 160L is lower than the output voltage of the power supply 160H, and is 5V as an example.
  • control of the energized state (on) / non-energized state (off) of the heating wire 130 or the heating film by the control unit 150C will be described.
  • FIG. 3 is a diagram showing an example of a flowchart showing the processing executed by the control unit 150C.
  • the control unit 150C starts processing when the power is turned on by the ECU 170.
  • the control unit 150C determines whether or not the glass temperature exceeds the dew point temperature based on the glass temperature, the temperature and humidity in the vehicle interior detected by the temperature sensor 150A and the temperature / humidity sensor 150B (step S1).
  • Whether or not the glass temperature exceeds the dew point temperature is determined by storing data representing a curve showing the relationship between the glass temperature and the saturated water vapor pressure in the internal memory of the control unit 150C, and storing the glass temperature and the temperature and humidity in the vehicle interior. It may be determined whether or not the glass temperature exceeds the dew point temperature based on the saturated water vapor pressure obtained from.
  • control unit 150C determines that the glass temperature exceeds the dew point temperature (S1: YES)
  • the control unit 150C repeatedly executes the process of step S1.
  • the control unit 150C determines that the glass temperature does not exceed the dew point temperature (S1: NO)
  • the heating wire 130 or the heating film is energized, or the defroster 20 is turned on (step S2). This is to remove fogging of the glass body 111 to improve the visibility and to improve the visibility of the OLED display 120.
  • the control unit 150C determines whether or not the glass temperature detected by the temperature sensor 150A exceeds the temperature T ⁇ (step S3). The control unit 150C repeats the determination in step S3 until the glass temperature exceeds the temperature T ⁇ .
  • the temperature T ⁇ is 40 ° C. as an example.
  • the temperature T ⁇ is the upper limit of the glass temperature for protecting the OLED from heat, and is the upper limit temperature to which the OLED is exposed. Since the OLED display 120 includes an OLED, which is an organic element made of an organic material, in the light emitting portion, the glass temperature is controlled so as not to exceed 40 ° C. in order to obtain stable element characteristics.
  • control unit 150C determines that the glass temperature exceeds the temperature T ⁇ (S3: YES)
  • the heating wire 130 or the heating film is de-energized, or the defroster 20 is turned off (step S4).
  • the heating wire 130, the heating film, or the defroster 20 is turned off.
  • control unit 150C determines that the glass temperature does not exceed the temperature T ⁇ (S3: NO)
  • the control unit 150C repeatedly executes the process of step S3 until the glass temperature exceeds the temperature T ⁇ .
  • control unit 150C While the power of the window glass system 100 is turned on, the control unit 150C repeatedly executes the processes of steps S1 to S4 in a predetermined control cycle.
  • the temperature of the glass body 111 it is determined whether or not the temperature of the glass body 111 has reached the dew point temperature based on the glass temperature, the temperature in the vehicle interior, and the humidity, and the temperature of the glass body 111 becomes the dew point temperature.
  • the heating wire 130 or the heating film is turned on, or the defroster 20 is turned on, and when the temperature of the glass body 111 exceeds a predetermined temperature, the heating wire 130 or the heating film is turned off or turned off.
  • a window glass system 100 capable of obtaining stable element characteristics of an OLED display 120 including an OLED, which is an example of an organic element.
  • the heating wire 130 or the heating film is energized, or the defroster is turned on to suppress the occurrence of fogging of the glass body 111 and prevent the glass body 111 from becoming cloudy.
  • the visibility of the OLED display 120 can be improved and the visibility of the OLED display 120 can be improved.
  • a voltage conversion unit may be provided between the heating wire 130 and the power supply 160H to suppress the voltage supplied to the heating wire 130 to 10 V or less. This is because the increase in the glass temperature is moderated so that the glass temperature tends to decrease when the glass temperature reaches, for example, 40 ° C. and the heating wire 130 is turned off. This also applies when a heating film is used instead of the heating wire 130. In the case of an electric heating film, the supplied voltage may be suppressed to 40 V or less.
  • the power density of the heating wire 130 may be suppressed to 400 W / m 2 or less. This is because the increase in the glass temperature is moderated so that the glass temperature tends to decrease when the glass temperature reaches, for example, 40 ° C. and the heating wire 130 is turned off. This also applies when a heating film is used instead of the heating wire 130.
  • the power density of the heating wire 130 is the power supplied to the heating wire 130 per unit area. In the case of an electric heating film, it is the electric power supplied to the electric heating film per unit area.
  • the window glass system 100 includes an OLED display 120 or an optical device of a HUD (Head Up Display) as a device including an organic element
  • the voltage applied to the heating wire 130 is set to 7 V or less, and the voltage is set to 7 V or less.
  • the power density of the heating wire 130 may be suppressed to 400 W / m 2 or less. This is because the increase in the glass temperature is moderated so that the glass temperature tends to decrease when the glass temperature reaches, for example, 40 ° C. and the heating wire 130 is turned off. This also applies when a heating film is used instead of the heating wire 130.
  • the distance between the heating wires 130 may be set to 3 mm or more. This is to prevent the glass temperature from rising too much by widening the distance between the heating wires 130.
  • the line width of the heating wire 130 may be set to 25 ⁇ m or more. This is because the wire width of the heating wire 130 is increased to reduce the electric resistance of the heating wire 130 so that the glass temperature does not rise too much.
  • the current flowing through the heating wire 130 or the heating film may fluctuate periodically.
  • the rise in the glass temperature is moderated, and when the glass temperature reaches, for example, 40 ° C., the heating wire 130 or the heating film is turned off.
  • the glass temperature tends to drop.
  • the current is periodically de-energized.
  • the current may be periodically de-energized by repeating the energized state (on) and the non-energized state (off) every 5 seconds.
  • the OLED display 120 is not limited to the windshield, and may be configured to be attached to a side glass, a rear glass, a glass roof panel, a glass sunroof, or the like for display or the like.
  • the window glass system 100 includes the OLED as an example of the organic element
  • the organic element included in the window glass system 100 is not limited to the OLED, and may be, for example, a liquid crystal element, a dimming element, a hologram, an LED film, or the like. That is, instead of the OLED display 120, an LCD (Liquid Crystal Display) including a display unit made of an organic material, a dimming display, a HUD, a transparent screen, or the like may be used.
  • LCD Liquid Crystal Display
  • the LCD can be used as a display device including a liquid crystal element instead of the OLED, and may be provided on a part of the glass body 111, a side glass, a rear glass, a glass roof panel, a glass sunroof, or the like.
  • the dimming display may include a dimming element that can adjust the amount of light transmitted from the outside of the vehicle to the inside of the vehicle by changing the transmittance by applying a voltage. It may be provided on the rear glass, a glass roof panel, a glass sunroof, or the like. Examples of the dimming element include a suspended particle element and a liquid crystal element.
  • the HUD can be provided on a part of the glass body 111 or the like as a display device including an organic element.
  • the material constituting the organic element include potassium dichromate and photopolymer used as holograms, liquid crystal elements, resin laminated films using PET and PEN, and polyvinyl butyral resin films having a substantially reduced thickness. ..
  • the organic element may be provided on a part of the glass body 111, a side glass, a rear glass, a glass roof panel, a glass sunroof, or the like. Further, the organic element may be a resin laminated film using PET or PEN, or a polyvinyl butyral resin film whose thickness is substantially gradually reduced.
  • the transparent screen is provided on a part of the glass body 111, the side glass, the rear glass, the roof panel made of glass, the sunroof made of glass, or the like, and the image is output from the projector or the like with the transmittance lowered to some extent.
  • the organic element for a transparent screen include a photocurable resin, a thermoplastic resin, a thermosetting resin, silica obtained by a sol-gel method, and an organic-inorganic hybrid material.
  • polyester resin PET, polyethylene naphthalate, etc.
  • polycarbonate resin a polycarbonate resin
  • triacetyl cellulose resin a triacetyl cellulose resin
  • cycloolefin polymer resin a cycloolefin polymer resin having an uneven structure.
  • the LED film can be provided on a part of the glass body 111 or the like as a light emitting device including an organic element.
  • An example is a configuration in which an LED is fixed to a resin laminated film using PET or PEN with a UV curable resin or the like.
  • the OLED display 120 is not limited to the form provided so as to be located below the front of the driver's seat as shown in FIG. 2, and may be provided at the position shown in FIGS. 4 to 6. 4 to 6 are views showing a modified example of the position of the OLED display 120.
  • the central portion 111A of the glass body 111 is divided into three regions 50A to 50C in the vertical direction.
  • the region 50A is located in the center of the three regions 50A to 50C in the vertical direction, the region 50B is located on the upper side, and the region 50C is located on the lower side.
  • the combined region of the region 50A and the region 50C is a region that becomes the driver's driving field of view region.
  • the driving field of view is a range of the central portion 111A of the glass body 111 that is included in the field of view of the average driver while the vehicle 10 is running, and the line of sight is intentionally deflected. The range to be viewed is not included.
  • the region 50A corresponds to a portion of the central portion 111A of the glass body 111 excluding the region 50B which is rarely seen during operation and the lowermost strip-shaped region 50C in the driving field of view region.
  • the area 50B is a band-shaped area extending in the left-right direction at the uppermost side of the central portion 111A of the glass body 111.
  • the area 50B is, for example, an area that can be visually recognized by the driver intentionally turning his / her field of view upward when the vehicle 10 is running.
  • the region 50B has a recess 51B.
  • the recess 51B is provided corresponding to the recess 111A0 of the central portion 111A.
  • the recess 111A0 is provided at the upper end of the central portion 111A in the central portion in the left-right direction, and is provided in the central portion 111A in order to avoid a rearview mirror and a camera that acquires an image of the front of the vehicle 10 for automatic braking or automatic driving.
  • the upper end of the is a part that is recessed downward.
  • the recess 51B is a region provided in the central portion in the left-right direction on the upper side of the region 50B, and the upper end of the region
  • the region 50C is a strip-shaped region extending in the left-right direction at the lowermost side of the central portion 111A of the glass body 111.
  • the area 50C is, for example, an area that can be visually recognized by the driver intentionally turning the field of view downward when the vehicle 10 is running.
  • the size of the glass body 111 in the vertical direction and the horizontal direction differs depending on the type of the vehicle 10. Further, the positional relationship between the glass body 111 and the driver's seat differs depending on the type of vehicle 10. Therefore, the areas 50A to 50C are arranged in the order of the area 50B, the area 50A, and the area 50C from the upper side to the lower side, although the areas 50A to 50C differ depending on the type of the vehicle 10.
  • the region 50A is a region located in the center of the regions 50A to 50C in the vertical direction.
  • the OLED display 120 is provided in the upper region 50B of the glass body 111.
  • the OLED display 120 is preferably provided so as to be sandwiched between interlayer films.
  • the OLED display 120 provided in the area 50B includes, for example, traffic signs, signal displays, information such as mountain names and altitudes that can be seen by the occupants through the glass body 111, or information such as altitude for the occupants including the driver. Information about the current position can be displayed. Further, when the OLED display 120 is provided in the area 50B so that it can be displayed outside the vehicle 10, a message for pedestrians such as "please cross" may be displayed.
  • the OLED display 120 is provided in the area 50C below the glass body 111.
  • the OLED display 120 is preferably provided so as to be sandwiched between interlayer films.
  • On the OLED display 120 provided in the area 50C for example, for the occupants including the driver, at least a part of the display such as the traveling direction of the navigation system, a traffic sign, a signal display, information on the current position, etc. Can be displayed.
  • FIG. 6 shows four OLED displays 120.
  • the four OLED displays 120 are provided along the edge of the central portion 111A of the glass body 111. More specifically, in FIG. 6, the lower end portion 111A1 of the central portion 111A, the lower portion 111A2 of the right end, the right portion 111A3 of the upper end portion, and the outer portion 111E of the central portion 111A are provided. .. The portion 111E is located outside the central portion 111A and corresponds to the recess 111A0 of the central portion 111A.
  • the four OLED displays 120 are preferably provided so as to be sandwiched between interlayer films.
  • the four OLED displays 120 display, for example, at least a part of the direction of travel of the navigation system, traffic signs, signal displays, information on the current position, and the like for occupants including the driver. be able to. It is not necessary to provide the four OLED displays 120 in the portions 111A1 to 111A3 and 111E, and the OLED display 120 may be provided in at least one of the portions 111A1 to 111A3 and 111E.
  • the four portions 111A1 to 111A3 and 111E may be line-symmetrical with the axis penetrating the center in the width direction of the vehicle 10 in the front-rear direction as the axis of symmetry in the right-hand steering wheel vehicle and the left-handling vehicle, or at the same position. It may be provided.
  • the OLED display 120 has been described with reference to FIGS. 4 to 6, a transparent screen may be provided instead of the OLED display 120. Further, the OLED display 120 and the transparent screen may be provided in the plurality of portions 111A1 to 111A3 and 111E as shown in FIG. Further, in FIGS. 4 and 5, the OLED display 120 or the transparent screen may be provided so as to straddle the regions 50A to 50C, and the same applies to FIG.
  • FIGS. 7 and 8 are diagrams showing the arrangement of the HUD 180. 7 and 8 will be described with reference to regions 50B and 50D.
  • the area 50B is the same as the area 50B shown in FIGS. 4 to 6.
  • the region 50D is a region in which the regions 50A and the regions 50C shown in FIGS. 4 to 6 are combined. That is, the area 50D is a driving field of view area.
  • the HUD 180 may be provided in the entire region 50D, or may be provided in about half of the region 50D in the left-right direction as shown in FIG. Since the HUD 180 is located in front of the driver's seat, the HUD 180 shown in FIG. 8 is, for example, an arrangement for a left-hand steering wheel vehicle. As an example, the HUD 180 can display at least a part of the direction of travel of the navigation system, a traffic sign, a signal display, information on the current position, and the like for the occupants including the driver. ..
  • control unit 150 is provided on the surface of the glass body 111 on the vehicle interior side, but the control unit 150 is provided on the ceramic layer 112 on the vehicle interior side of the glass body 111. It may have been.
  • the temperature detected by the temperature / humidity sensor 150B is affected by the black ceramic layer 112, the detected temperature may be converted into the value of the central portion 111A in which the ceramic layer 112 does not exist.
  • a conversion formula may be used for conversion.
  • control unit 150C is included in the control unit 150 and is provided on the surface of the central portion 111A of the glass body 111 on the vehicle interior side. It is not limited to any position.
  • the control unit 150C may be connected to the temperature / humidity sensor 150B via a cable and may not be provided on the glass body 111. Further, the control unit 150C may be provided in the middle of the cable connecting the temperature / humidity sensor 150B or the switch 140 and the ECU of the vehicle 10.
  • control unit 150C turns on the heating wire 130 based on the temperature and humidity detected by the temperature / humidity sensor 150B has been described.
  • the defroster 20 of the vehicle 10 may be operated.
  • FIG. 9 is a diagram showing an example of the window glass system 200 of the second embodiment.
  • the window glass system 200 includes a window glass 110, an OLED display 120, a heating wire 130, a switch 140, a control unit 250 (temperature sensor 150A, temperature / humidity sensor 150B, control unit 250C), and an antifogging film 220.
  • the window glass system 200 of the second embodiment has a configuration in which the antifogging film 220 is added to the window glass system 100 of the first embodiment and the control unit 250 is included instead of the control unit 150. Therefore, the same components as those of the window glass system 100 of the first embodiment will be described by using the same reference numerals. In addition, the differences will be mainly described below.
  • the antifogging film 220 is provided on one surface of the window glass 110.
  • the antifogging film 220 is preferably provided on the surface of the central portion 111A of the glass body 111 on the vehicle interior (inside the vehicle 10) side.
  • the antifogging film 220 has water absorption.
  • the antifogging film 220 preferably contains a water-absorbing polymer or a hydrophilic polymer in order to realize high water absorption.
  • the antifogging film 220 may be attached to the window glass 110 via a film having an adhesive layer.
  • the antifogging film 220 is provided at a position where it overlaps with the OLED display 120 and the heating wire 130 in a plan view.
  • the control unit 250 may be provided on the surface of the central portion 111A of the glass body 111 on the vehicle interior side.
  • the control unit 250 includes a control unit 250C, a temperature sensor 150A, and a temperature / humidity sensor 150B.
  • the control unit 250C turns the heating wire 130 or the heating film attached to the window glass 110 into an energized state (on) or a non-energized state (off).
  • the temperature sensor 150A and the temperature / humidity sensor 150B are preferably provided on one surface of the window glass 110.
  • the temperature sensor 150A and the temperature / humidity sensor 150B are preferably provided on the ceramic layer 112 provided on one surface of the window glass 110.
  • the temperature sensor 150A and the temperature / humidity sensor 150B are preferably provided at the lower part of the glass body 111.
  • the temperature sensor 150A and the temperature / humidity sensor 150B are provided outside the antifogging film 220 in a plan view.
  • the temperature sensor 150A and the temperature / humidity sensor 150B are preferably provided on the lower side of the central portion 111A of the glass body 111 near the boundary with the ceramic layer 112.
  • the control unit 250 may further have a housing 151 fixed on the ceramic layer 112.
  • the housing 151 houses the control unit 250C, the temperature sensor 150A, and the temperature / humidity sensor 150B inside. Power is supplied from the power supply 160L to the control unit 250C, the temperature sensor 150A, and the temperature / humidity sensor 150B.
  • the control unit 250C is realized by a computer (circuit) including a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), an internal bus, and the like.
  • a computer circuit including a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), an internal bus, and the like.
  • control unit 250C determines whether or not the temperature of the glass body 111 has reached the dew point temperature, and when the temperature of the glass body 111 reaches the dew point temperature, the heating wire 130 or the electric heat Control is performed so that the film is energized (on) and is de-energized (off) when the temperature of the glass body 111 exceeds a predetermined temperature.
  • control unit 250C further performs the following control.
  • the control unit 250C turns on the heating wire 130 or the heating film based on the temperature of the glass body 111 detected by the temperature sensor 150A and the temperature and humidity in the vehicle interior detected by the temperature / humidity sensor 150B. , Controls to turn off the power after a predetermined time has elapsed.
  • the amount of water that can be absorbed by the antifogging film 220 (the amount that saturates the water absorption performance (saturated water absorption amount)) varies depending on the temperature and humidity.
  • the antifogging film 220 begins to become cloudy when the amount of water absorption exceeds the saturated amount of water absorption. That is, the anti-fog film 220 can delay the timing of fogging as compared with the window glass not provided with the anti-fog film 220.
  • control unit 250C controls to turn off the heating wire 130 or the heating film when a predetermined time elapses after the heating wire 130 or the heating film is turned on.
  • the heating wire 130 or the heating film is turned on to raise the glass temperature, the water contained in the antifogging film 220 evaporates and the amount of water absorbed by the antifogging film 220 decreases.
  • the amount of water absorbed by the antifogging film 220 causes the heating wire 130 to absorb water.
  • the time can be set so that the time becomes equal to or less than a predetermined ratio (for example, 70% or less) before the energized state (ON) is turned on.
  • the time may be set so that the heating wire 130 becomes a predetermined ratio or less (for example, 70% or less) before the energized state (ON). Regardless of the amount of water absorption, it is possible to make the anti-fog film 220 not fogged for the time being.
  • the moisture diffusion coefficient in the material of the antifogging film 220 is a function of temperature, and the diffusion coefficient becomes smaller as the glass substrate becomes colder.
  • the water diffusion coefficient is a function of the activation energy of water in the material, and the diffusion coefficient at a plurality of different temperatures is obtained by a measurement method such as JIS7209-2000 (ISO62-1999) plastic-water absorption rate. Can be done.
  • the moisture absorption rate on the outermost surface of the antifogging film 220 is determined by the difference between the water vapor pressure of air having a certain temperature and humidity and the water vapor pressure on the outermost surface of the antifogging film 220 having a certain temperature and water absorption rate.
  • the relative water absorption FRH on the outermost surface of the antifogging film 220 reaches almost 100%, but the relative water absorption FRH in the film does not reach 100%. Generally, there is room for absorption of water. Further, in the process of drying the antifogging film 220, the outermost surface of the antifogging film 220 is in a dry state, but the relative water absorption FRH in the film of the antifogging film 220 is higher than the relative water absorption FRH on the outermost surface. It is generally in a high state.
  • the outermost surface of the antifogging film 220 becomes cloudy. Even if the above occurs, the relative water absorption rate FRH in the membrane may be about 70%.
  • the relative water absorption FRH of the antifogging film 220 is in equilibrium with the humidity of the air in the vehicle interior. That is, the water vapor pressure of the antifogging film 220 is equal to the water vapor pressure in the vehicle interior. Further, the water vapor pressure is the same from the outermost surface to the deepest part of the antifogging film 220. Even if the glass temperature and the temperature inside the vehicle are different, the water vapor pressure in the film at the glass temperature is equal to the water vapor pressure at room temperature and is in equilibrium.
  • the water concentration distribution after ⁇ t time on the outermost surface, in the film (inside the film), and in the deepest part of the antifogging film 220 is predicted by Fick's law (diffusion equation of concentration gradient).
  • Fick's law diffusion equation of concentration gradient
  • the relative water absorption rate FRH on the outermost surface of the antifogging film 220 is monitored, and when it reaches 100%, it is judged that fogging has occurred.
  • the relative water absorption rate FRH on the outermost surface of the antifogging film 220 is obtained by dividing the water absorption mass concentration FD by the saturated water absorption mass concentration FW.
  • the remaining time until the time when cloudiness is expected to occur is set to a preset remaining time (for example, 30 seconds), and when the remaining time becomes zero, the heating wire 130 or the heating film is turned on. Or by introducing the outside air of the air conditioner, the anti-fog film 220 is set to the drying mode.
  • a preset remaining time for example, 30 seconds
  • the relative water absorption rate FRH on the outermost surface of the antifogging film 220 is a preset relative water absorption rate (for example, 80%).
  • the heating wire 130 or the heating film is turned on (on) until the temperature becomes low, and when the relative water absorption rate FRH on the outermost surface becomes less than 80%, the heating wire 130 or the heating film is turned off (off). This also applies when the outside air of the air conditioner is introduced.
  • the flow of water vapor at the interface between the air in the vehicle interior and the outermost surface of the antifogging film 220 is calculated by the following procedure.
  • the gas constant per mole of water vapor 8.3144598 [J / K / mol]
  • the gas constant R 461.5149 [J / K / kg].
  • the specific heat Cw of water is 1007 [J / K / kg]
  • the heat transfer coefficient H of water vapor in a natural convection state with no wind at room temperature is 4.2 [W / m 2 / K], room temperature Troom [° C], and the atmosphere inside the vehicle.
  • the water vapor pressure ES [Pa] be inside.
  • the thermal diffusivity TDair of air is expressed by the following equation.
  • TDair (0.1356 x Troom + 18.51) x 10-6 [m 2 / s]
  • Hwater H ⁇ (Dair / TDair) (2/3) / (R ⁇ Cw ⁇ (Troom + 273.15) ⁇ Dair) [kg / s / m 2 / Pa]
  • the relative water absorption FRH of the antifogging film 220 in equilibrium with air at a certain relative humidity is approximately equal to the relative humidity of the air.
  • the saturated water vapor pressure of air decreases significantly at low temperatures, but the saturated water absorption mass concentration FW of the antifogging film 220 is substantially constant and decreases by the water vapor pressure.
  • the water vapor pressure ES [Pa] of the air in the vehicle interior is expressed by the following equation.
  • ES EW x RH
  • water mass concentration FD [kg / m3] of the antifogging film 220, the use of saturated water mass concentration FW of antifogging film 220 [kg / m 3], the relative water absorption of the outermost surface of the antifogging film 220 FRH [ %] Is expressed by the following equation.
  • FD (x, t) U (x, t) x C [kg / m 3 ] Further, the unsteady analysis is performed in the range where the film thickness x is 0 [m] to d [m].
  • the antifogging film 220 is equally divided in the thickness direction and handled. For example, when the film thickness of the antifogging film 220 is 20 ⁇ m, the film is divided into 10 layers from the top layer to the bottom layer every 2 ⁇ m in the thickness direction.
  • the non-stationary analysis is continuously performed after the analysis is first started.
  • the boundary conditions are a change U (0, t) in the water absorption volume concentration in the uppermost layer and a change U (d, t) in the water absorption volume concentration in the lowermost layer.
  • U0 is the initial uniform equilibrium water absorption volume concentration [kg / m 3 ] in the membrane.
  • the limit range of dt of the time forward difference is as follows. dt ⁇ dx 2/2 / ( Hwater ⁇ dx + D) ⁇ C ⁇ ⁇ [s]
  • dx thickness dividing the film thickness [m]
  • Hwater water evaporation rate [kg / s / m 2 / Pa]
  • D diffusion coefficient in film [m 2 / s]
  • C water density 1000 [Kg / m 3 ]
  • ⁇ Specific heat of water [J / kg / K].
  • U (0, t + dt) Hwater / C / ⁇ ⁇ (ES-FW) ⁇ dt ⁇ dx + (1-D / C / ⁇ ⁇ (dt / dx 2 )) ⁇ U (0, t) + D / C / ⁇ ⁇ (dt / dx 2 ) ⁇ U (dx, t)
  • U (x, t + dt) at time t + dt of the water absorption volume concentration in the film of the antifogging film 220 (position of depth x from the surface) is expressed by the following equation.
  • U (x, t + dt) D / C / ⁇ ⁇ (dt / dx 2 ) ⁇ U (x ⁇ dx, t) + (1-2 ⁇ D / C / ⁇ ⁇ (dt / dx 2 )) ⁇ U ( x, t) + D / C / ⁇ ⁇ (dt / dx 2 ) ⁇ U (x + dx, t)
  • control unit 250 may be used for control as follows.
  • the required time Ts is, for example, 30 seconds or less (Ts ⁇ 30 [s]), preferably the required time Ts is 10 seconds or less (Ts ⁇ 10 [s]).
  • the switch 140 is turned on so that the drying mode is started when the time becomes low, and the control unit 250C turns on the heating wire 130.
  • the control unit 250C sends the heating wire 130.
  • the electric heating film is turned off.
  • the heating wire 130 or the heating film is energized (on) in order to dry the antifogging film 220
  • the heating wire 130 or the heating film is energized (on).
  • the heating wire 130 or the heating film is energized (on).
  • the time Ts required for the antifogging film 220 to become cloudy is calculated every predetermined period after the analysis is first started.
  • the predetermined period may be a period that is an integral multiple of the control cycle. That is, it is preferable that the required time Ts is calculated in a predetermined cycle after the analysis is first started.
  • FIG. 10 is a diagram showing an example of a flowchart showing the processing executed by the control unit 250C.
  • steps S1 to S3 are the same as steps S1 to S3 of the first embodiment shown in FIG.
  • the control unit 250C starts processing when the power is turned on by the ECU.
  • the control unit 250C determines whether or not the glass temperature exceeds the dew point temperature based on the glass temperature, the temperature and humidity in the vehicle interior detected by the temperature sensor 150A and the temperature / humidity sensor 150B (step S1).
  • control unit 250C determines that the glass temperature does not exceed the dew point temperature (S1: NO), the heating wire 130, the heating film, or the defroster 20 is turned on (step S2).
  • control unit 250C determines whether or not the glass temperature detected by the temperature sensor 150A exceeds the temperature T ⁇ (step S3).
  • the control unit 250C repeats the determination in step S3 until the glass temperature exceeds the temperature T ⁇ .
  • the temperature T ⁇ is, for example, 40 ° C.
  • step S19 When the control unit 250C determines that the glass temperature exceeds the temperature T ⁇ (S3: YES), the heating wire 130 or the heating film is de-energized, or the defroster 20 is turned off (step S19). In order to prevent the glass temperature from exceeding the temperature T ⁇ , the heating wire 130 or the heating film is de-energized, or the defroster 20 is turned off.
  • the process of step S19 is the same as the process of step S4 in the first embodiment.
  • control unit 250C determines that the glass temperature does not exceed the temperature T ⁇ (S3: NO)
  • the control unit 250C repeatedly executes the process of step S3 until the glass temperature exceeds the temperature T ⁇ .
  • the control unit 250C determines that the glass temperature exceeds the dew point temperature (S1: YES), the water absorption mass concentration FD (x) specified by the glass temperature, the temperature in the vehicle interior, and the humidity, for example, up to 10 minutes later. Is started (step S13). The 10-minute count is performed from the time when the water absorption mass concentration FD (x) is calculated.
  • the required time Ts may be obtained by the control unit 250C by the method described above.
  • the control unit 250C determines whether or not the required time Ts obtained in step S15 is equal to or less than the preset time (step S16).
  • control unit 250C does not proceed to step S17 and repeatedly executes the process of step S16.
  • control unit 250C determines that the required time Ts is equal to or less than the preset time (S16: YES), the heating wire 130 or the heating film is energized, or the defroster 20 is turned on (step S17). ..
  • the state (off) is set (step S19).
  • control unit 250C While the power supply of the window glass system 200 is energized (on), the control unit 250C repeatedly executes the processes of steps S1 to S19 in a predetermined control cycle.
  • the drying mode is started to start the heating wire 130.
  • the electric heating film is energized, or the defroster 20 is turned on.
  • step S1 when it is determined in step S1 that the glass temperature exceeds the dew point temperature (S1: YES), the processes of steps S13 to S18 are performed, and the glass temperature is equal to or lower than the dew point temperature in step S1 (S1). : NO) has been described, and a mode in which the processes of steps S2 and S3 are performed has been described.
  • step S18 the same determination process as in step S3 may be performed.
  • step S3 the same determination process as in step S3 is performed after the process in step S17, and if the glass temperature exceeds the temperature T ⁇ , the flow is advanced to step S19, and the glass temperature is below the temperature T ⁇ . If so, the flow may proceed to step S18. In this case, if NO is determined in step S18, the flow may be returned to the same determination process as in step S3 inserted after step S17.
  • step S18 If NO is determined in step S18 and the same determination process as in step S3 is performed, the flow is advanced to step S19 if the glass temperature exceeds the temperature T ⁇ , and the flow is performed if the glass temperature is below the temperature T ⁇ . The flow may be returned to step S18 in order to repeat the process of step S18.
  • the window glass 110 may be provided with an information acquisition device 270 that acquires information outside the moving body.
  • 11 to 13 are views showing the structures of the bracket 280 and the housing 290 for attaching the information acquisition device 270 to the glass body 111.
  • FIG. 11 is a view showing a cross section taken along the line AA in FIG. 12, and
  • FIG. 12 is a front view.
  • the information acquisition device 270, the bracket 280, and the housing 290 will be described using the vertical direction in a state of being attached to the glass body 111.
  • the left direction in FIG. 11 is the front of the vehicle
  • the right direction is the rear of the vehicle.
  • the direction of penetrating the drawing is the lateral direction (side)
  • the direction of penetrating the drawing from the front to the back is the right direction
  • the direction of penetrating the drawing from the back to the front is the left direction.
  • Left and right are left and right with respect to the traveling direction of the vehicle 10 (see FIG. 1).
  • the description will be made using the front-rear direction and the lateral direction (lateral direction).
  • 11 and 13 show the front-back and left-right directions
  • FIG. 12 shows the left-right directions.
  • the glass body 111 is a laminated glass in which an interlayer film 111C is sealed between the glass plates 111B and 111D.
  • a ceramic layer 112, an antifogging film 220, a temperature sensor 150A, a temperature / humidity sensor 150B, and a wind speed sensor 250D are attached to the surface of the glass plate 111B on the vehicle interior side.
  • the ceramic layer 112 is attached to the portion where the bracket 280 is attached in a rectangular ring shape when the glass body 111 is viewed from the front.
  • the antifogging film 220 is formed on the surface of the glass plate 111B of the glass body 111 on the vehicle interior side, except for the upper end side in the region surrounded by the ceramic layer 112.
  • the antifogging film 220 is located in front of the information acquisition unit 271 of the information acquisition device 270, and is provided to suppress the occurrence of fogging of the glass body 111 in front of the information acquisition unit 271.
  • the temperature sensor 150A, the temperature / humidity sensor 150B, and the wind speed sensor 250D are provided on the surface of the glass plate 111B of the glass body 111 on the vehicle interior side in a region surrounded by the ceramic layer 112, avoiding the antifogging film 220. ing.
  • the temperature sensor 150A, the temperature / humidity sensor 150B, and the wind speed sensor 250D are provided above the antifogging film 220.
  • the wind speed sensor for example, a hot wire type anemometer or an ultrasonic type anemometer may be used.
  • Examples of the information acquisition device 270 include an image pickup device such as a camera, a light receiving device for receiving a signal such as a radar or an optical beacon, and the like.
  • the information acquisition device 270 is fixed to the window glass 110 via the bracket 280 and the housing 290.
  • the bracket 280 and the housing 290 are examples of mounting members.
  • the information acquisition device 270 has an information acquisition unit 271 and acquires information in front of the vehicle 10 by acquiring an image or a signal such as a radar or an optical beacon by the information acquisition unit 271.
  • the area in front of the information acquisition unit 271 is an example of the information acquisition area.
  • the antifogging film 220 will be provided at least in the information acquisition region of the window glass 110.
  • the bracket 280 is a rectangular ring-shaped frame-shaped member, and has a recess 281 on the front upper surface side.
  • the thickness of the bracket 280 is thin in the portion of the recess 281.
  • the thickness of the portion of the bracket 280 other than the recess 281 is substantially constant.
  • the bracket 280 is made of resin as an example.
  • the housing 290 has a rectangular plate-shaped bottom portion 291 and a triangular plate-shaped side wall 292, and a rectangular plate-shaped back wall 293.
  • the side wall 292 extends upward from the side of the bottom 291 and the back wall 293 extends upward from the rear of the bottom 291.
  • the space surrounded by the bottom portion 291 and the side wall 292 and the back wall 293 is the storage portion 294, and the information acquisition device 270 fixed to the front surface of the back wall 293 is located in the storage portion 294.
  • the housing 290 is made of resin as an example.
  • the front end of the bottom portion 291 and the upper ends of the side wall 292 and the back wall 293 are adhered to the lower surface of the bracket 280, and the bracket 280 is further attached to the glass plate 111B of the glass body 111 via the adhesive layer 285. It is attached to the ceramic layer 112 on the surface on the vehicle interior side.
  • the adhesive layer 285 is divided along the rectangular ring shape of the bracket 280, and is not provided in the portion of the recess 281 of the bracket 280.
  • a gap is created between the recess 281 of the bracket 280 and the surface of the glass plate 111B on the vehicle interior side. .. Further, a gap is generated between the portion of the bracket 280 other than the recess 281 and the surface of the glass plate 111B on the vehicle interior side in a section not adhered by the adhesive layer 285.
  • the gap of the recess 281 is large and faces diagonally downward in the front direction, when the defroster 20 is turned on, the air dehumidified by the defroster 20 flows into the storage portion 294.
  • the wind speed sensor 250D can detect the wind speed of the wind by the defroster 20 or the wind speed of the wind by the air conditioner.
  • the temperature sensor 150A can detect the temperature near the glass body 111
  • the temperature / humidity sensor 150B can detect the temperature and humidity near the glass body 111.
  • the air dehumidified by the defroster 20 flows into the storage portion 294 from the recess 281 and is sprayed onto the antifogging film 220 and flows out from the gaps other than the recess 281. Therefore, the water absorption mass of the uppermost layer of the antifogging film 220.
  • the position where the temperature sensor 150A and the temperature / humidity sensor 150B are provided is preferably within a radius of 50 mm, more preferably within 40 mm, and particularly preferably within 30 mm in a plan view from the gap.
  • the formula for obtaining the heat transfer coefficient H is replaced with the following formula for obtaining the heat transfer coefficient H in consideration of the wind speed V [m / s] in the vehicle interior, and the antifogging film 220 is used.
  • the time required until cloudiness occurs Ts can be calculated.
  • H 5.8 + 4.2V [W / m 2 / K]
  • the wind speed sensor 250D is preferably provided in a portion through which the air dehumidified by the defroster 20 or the air regulated by the air conditioner passes. Therefore, here, as an example, the wind speed sensor 250D is provided closer to the recess 281 of the bracket 280 than the temperature sensor 150A and the temperature / humidity sensor 150B. Further, the wind speed sensor 250D is provided in the vicinity of the gap in the section where the adhesive layer 285 is divided.
  • the position where the wind speed sensor is provided is preferably within a radius of 100 mm, more preferably within 80 mm, and particularly preferably within 50 mm in a plan view from the gap in the section where the adhesive layer 285 is divided.
  • FIG. 14 is a diagram showing a bracket 280M according to a modified example of the second embodiment.
  • the bracket 280M has an opening 281M.
  • the air dried by the defroster 20 flows into the space surrounded by the bracket 280M and the housing 290. Therefore, as in the case of using the bracket 280 shown in FIGS. 11 to 13, the same as when the bracket 280 shown in FIGS. 11 to 13 is used.
  • the formula for obtaining the heat transfer coefficient H is replaced with the following formula for obtaining the heat transfer coefficient H in consideration of the wind speed V [m / s] in the vehicle interior, and the antifogging film 220 is used.
  • the time required until cloudiness occurs Ts can be calculated.

Landscapes

  • Surface Heating Bodies (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

La présente invention concerne un système de vitre de fenêtre et un appareil de vitre de fenêtre de telle sorte que les caractéristiques d'éléments stables d'éléments organiques peuvent être obtenues.　Le système de vitre de fenêtre de la présente invention comprend : une vitre de fenêtre qui est fixée à une unité mobile ; un dispositif qui est disposé sur la vitre de fenêtre et contient un élément organique comprenant un matériau organique ; un capteur de température qui détecte la température de la vitre de fenêtre ; un capteur de température/humidité qui détecte la température et l'humidité à l'intérieur de l'habitacle de l'unité mobile ; et une unité de commande ayant un circuit qui détermine si la température de vitre détectée par le capteur de température dépasse ou non une température de point de rosée sur la base de la température de vitre et de la température et de l'humidité dans l'habitacle détectées par le capteur de température/humidité, excite le fil chauffant électrique ou le film chauffant électrique fixé à la vitre de fenêtre, ou le dégivreur, si la température de vitre est déterminée comme étant inférieure ou égale à la température de point de rosée, et désexcite le fil chauffant électrique ou le film chauffant électrique ou met hors tension le dégivreur lorsque la température de vitre détectée par le capteur de température dépasse une température prédéterminée.
PCT/JP2020/039571 2019-12-11 2020-10-21 Système de vitre de fenêtre et appareil de vitre de fenêtre WO2021117352A1 (fr)

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DE112020006068.3T DE112020006068T5 (de) 2019-12-11 2020-10-21 Fensterscheibensystem und fensterscheibenvorrichtung

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CN113829847A (zh) * 2021-10-29 2021-12-24 海信集团控股股份有限公司 车辆及其车窗除雾方法

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