Vehicle window glass, camera system, and vehicle

By installing a transparent heating film and an anti-reflective coating in the space of the car window glass, the problem of camera field of view being obstructed in low-temperature weather is solved, achieving efficient snow and ice removal and clear light information collection.

CN224375528UActive Publication Date: 2026-06-19ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG ZEEKR INTELLIGENT TECH CO LTD
Filing Date
2025-07-07
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In cold weather, frost and snow condensing on car windows obstruct the camera's field of vision, making it impossible to clearly detect road and target information. Traditional heating wires have limited power and affect the camera's sensing performance.

Method used

A transparent heating film is installed in the space of the car window glass to cover the viewing area. Energy is provided through electrodes and wires. Combined with an anti-reflective coating, overall heating is achieved and the camera's field of vision is avoided.

Benefits of technology

It enabled faster snow and ice removal, avoided glare, ensured that the camera obtained comprehensive light information, and improved data analysis capabilities.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224375528U_ABST
    Figure CN224375528U_ABST
Patent Text Reader

Abstract

This application relates to a vehicle window glass, a camera system, and a vehicle. The glass component includes a first glass and a second glass, with a receiving space formed between the first and second glass. The glass component also includes a viewing area that extends through the first glass, the second glass, and the receiving space along its thickness direction. The viewing area is used to receive light information via a camera device. The transparent heating film is disposed in the receiving space and covers the viewing area. Because the transparent heating film is film-shaped and covers the viewing area, the entire viewing area can be heated as a whole, preventing parts of the viewing area from remaining unheated, thus achieving a better heating effect. Furthermore, the transparent heating film can withstand higher power and effectively removes accumulated ice and snow from the glass during preheating.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of vehicles, and more particularly to a window glass, a camera system, and a vehicle. Background Technology

[0002] In cold weather, frost and fog condensing on the windshield inside the car, as well as ice and snow accumulating on the windows outside, can obstruct the camera's field of vision, making it impossible for the camera to clearly detect information such as the road, targets, lane lines, or signs in front of the vehicle.

[0003] Traditional solutions involve printing heating wires on the windshield in the viewing area corresponding to the camera, using heat to remove frost and fog. However, due to the limited diameter of the heating wires, the heating power is limited and cannot remove ice and snow. This not only results in slow defrosting but also causes the heating wires to appear within the field of view of the forward-facing camera, affecting perception performance. Furthermore, direct sunlight on the heating wires can cause glare, affecting the camera's perception performance. In cold weather, when the vehicle surface is covered with ice and snow, the preheating function cannot remove the accumulated ice and snow on the windshield. Utility Model Content

[0004] The purpose of this application is to provide a vehicle window glass, a camera system, and a vehicle.

[0005] According to a first aspect of the embodiments of this application, a vehicle window glass is provided, which is applied to a vehicle, the vehicle window glass comprising:

[0006] The glass section includes a first glass and a second glass, and a receiving space is formed between the first glass and the second glass. The glass section also includes a viewing window area, which is disposed along the thickness direction through the first glass, the second glass and the receiving space. The viewing window area is used to receive light information through the camera device.

[0007] A transparent heating film is disposed in the receiving space and covers the viewing window area.

[0008] It should be noted that, in addition to the transparent heating film, a PVB (Polyvinyl Butyral) interlayer can also be provided in this space. This interlayer, bonded to multiple layers of glass or combined with other materials, enhances the glass's impact resistance, sound insulation, and safety. Furthermore, the transparent heating film can be an ITO (Indium Tin Oxide) heating film, deposited on a glass or PET substrate using magnetron sputtering or vacuum deposition processes. Alternatively, the transparent heating film 300 can also be a conductive polymer heating film, such as PEDOT:PSS (Poly(3,4-ethylenedioxythiophene:polystyrene sulfonate)) or other conductive polymers. Any transparent film capable of being heated should be within the scope of protection of this application.

[0009] Based on the above configuration, the transparent heating film, being film-shaped and covering the viewing area, can heat the entire area without leaving any unheated sections, thus achieving better heating performance. Furthermore, the transparent heating film can withstand higher power and effectively removes accumulated ice and snow from the glass during preheating.

[0010] Because the transparent heating film is transparent, it does not obstruct the camera's field of view, allowing the camera to obtain more comprehensive light information and thus enabling better data analysis. It also avoids glare caused by direct sunlight shining on the heating wire.

[0011] Furthermore, in this application, a transparent heating film is only applied to a section of the viewing window area. This arrangement minimizes the negative impact of the transparent heating film on the window glass itself. For example, compared to fully laminated glass, this method allows for more PVB layers, increasing the strength between the first and second glass panes. Simultaneously, since the transparent heating film itself reduces light intake through the window, applying it only to the viewing window area ensures that other parts of the window glass maintain normal light transmission. Moreover, because the viewing window area is relatively small, the transparent heating film in this area can concentrate its heat, generating more energy and thus achieving a faster melting effect for ice and snow.

[0012] In some embodiments, the transparent heating film extends beyond the viewing window area, and the window glass further includes an electrode connected to the side end of the transparent heating film for providing electrical energy to the transparent heating film. The electrode is located in the receiving space and outside the viewing window area.

[0013] Based on the above configuration, extending the transparent heating film beyond the viewing window area ensures that the entire viewing window area can be fully heated, thereby guaranteeing the clearing effect of the viewing window area. Furthermore, this embodiment places the electrodes outside the viewing window area, avoiding obstruction of the viewing window area and thus enabling the camera device to achieve better light information collection.

[0014] In some embodiments, the shortest distance between the outer edge of the transparent heating film and the viewing window area is greater than or equal to 10 mm and less than or equal to 20 mm.

[0015] Within this range, on the one hand, the waste of the transparent heating film can be avoided, and the other performance of the window glass can be prevented from being weakened. On the other hand, it can effectively clear ice and snow from the edges of the window area, allowing the camera device to obtain better light information. For example, the shortest distance between the outer edge of the transparent heating film and the window area can be set to 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, and 20mm.

[0016] In some embodiments, the window glass further includes a receiving device connected to the electrode and located in the receiving space, outside the viewing window area, the receiving device being used to receive external energy.

[0017] By incorporating a receiving device connected to the electrodes, the receiving device can be kept within the storage space, thus preventing damage to the window glass and preserving its overall integrity. Furthermore, by positioning the receiving device outside the viewing area, it avoids obstructing the view and allows the camera to achieve better light information collection.

[0018] In some embodiments, the window glass further includes a transmitting device disposed on the side of the second glass away from the receiving space and located outside the viewing window area, for providing energy to the receiving device.

[0019] Similarly, the transmitter's placement works in conjunction with the receiver, thus avoiding damage to the car window glass and maintaining its overall performance. Furthermore, the transmitter's location outside the viewing area prevents obstruction, allowing the camera to collect light information more effectively.

[0020] In some embodiments, the window glass further includes a wire connected to the electrode, and the second glass has a perforation located outside the viewing window area, through which the wire passes.

[0021] This embodiment inputs energy into the transparent heating film through perforation. This makes energy transfer more stable and allows for the transfer of a larger current, resulting in higher heating efficiency for the transparent heating film. Furthermore, since the perforations are located outside the viewing window area, they avoid obstructing the viewing window area, thereby enabling the camera device to achieve better light information collection.

[0022] In some embodiments, the window glass further includes an anti-reflective coating disposed on the side of the first glass and / or the second glass away from the receiving space, for increasing transmitted light and reducing reflected light.

[0023] An anti-reflective coating is installed in the viewing window area, which allows the camera device to obtain better light information collection, thereby obtaining clearer image analysis.

[0024] In some embodiments, the antireflective coating extends beyond the viewing window area, and the shortest distance between the outer edge of the antireflective coating and the viewing window area is greater than or equal to 10 mm and less than or equal to 20 mm.

[0025] This setup avoids wasting antireflective coating by using excessive amounts, while also ensuring complete coverage of the viewing area. For example, the shortest distance between the outer edge of the antireflective coating and the viewing area can be set to 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, or 20mm.

[0026] According to a second aspect of the embodiments of this application, a camera system is provided, including a camera device and a vehicle window glass as described in any of the above embodiments;

[0027] The camera system is positioned to be aimed at the viewing window area and receives light through the viewing window area.

[0028] According to a third aspect of the embodiments of this application, a vehicle is provided, including the camera system as described in the above embodiments.

[0029] The beneficial technical effects of the technical solutions provided in this application are:

[0030] A transparent heating film is placed in the space between the first and second glass panes, covering the viewing area. Because the transparent heating film is film-shaped and covers the entire viewing area, it can heat the entire area without leaving any unheated sections, thus achieving better heating results. Furthermore, the transparent heating film can withstand higher power and effectively removes accumulated ice and snow from the glass during preheating.

[0031] Because the transparent heating film is transparent, it does not obstruct the camera's field of view, allowing the camera to obtain more comprehensive light information and thus enabling better data analysis. It also avoids glare caused by direct sunlight on the heating wire. Furthermore, in this application, the transparent heating film is only applied to a small area of ​​the viewing window. This arrangement minimizes the negative impact of the transparent heating film on the window glass itself. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a structural schematic diagram of a vehicle window glass and a viewing area according to an embodiment of this application.

[0034] Figure 2 This is a schematic diagram of the structure of a camera device and a viewing area according to an embodiment of this application.

[0035] Figure 3 This is a schematic diagram of a viewing area with a heating wire and a camera device according to an embodiment of this application.

[0036] Figure 4 This is a schematic diagram illustrating the combination of a car window glass and a transparent heating film according to an embodiment of this application.

[0037] Figure 5 This is a schematic diagram of a viewing area with a transparent heating film and a camera device according to an embodiment of this application.

[0038] Figure 6 This is a schematic diagram of the structure of a viewing window area with a transparent heating film and a camera device from another angle, according to an embodiment of this application.

[0039] Figure 7 This is a cross-sectional schematic diagram of a vehicle window glass according to an embodiment of this application.

[0040] Figure 8 This is a schematic diagram illustrating the combination of a car window glass, a transparent heating film, and a receiving device according to an embodiment of this application.

[0041] Figure 9 This is a schematic diagram illustrating the combination of a transparent heating film, electrodes, and wires according to an embodiment of this application.

[0042] Figure 10 This is a schematic diagram illustrating the usage state of a transparent heating film according to an embodiment of this application.

[0043] Figure 11 This is a schematic diagram of the structure of a camera device and a viewing area according to an embodiment of this application.

[0044] Figure 12 This is a schematic diagram of a perforated vehicle window glass according to an embodiment of this application.

[0045] Figure 13 This is a schematic cross-sectional view of a perforated vehicle window glass according to an embodiment of this application.

[0046] Explanation of reference numerals in the attached figures

[0047] 10 car window glass

[0048] Heating wire 20

[0049] Glass section 100

[0050] First Glass 110

[0051] Second glass 120

[0052] 130 cubic meters of space

[0053] View area 200

[0054] Transparent heating film 300

[0055] Electrode 400

[0056] Receiver 500

[0057] Wire 600

[0058] 700 punctures

[0059] Anti-reflective coating 800

[0060] Camera device 900 Detailed Implementation

[0061] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0062] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0063] With the continuous development of vehicle automation, many vehicles have installed camera devices 900 in front of them. These cameras receive external light information through the viewing area 200 on the windshield 10 for intelligent analysis. The camera device 900 primarily provides real-time environmental perception capabilities to the driver or vehicle system through image acquisition and computer vision technology. For example, it captures information about the road, traffic signs, pedestrians, vehicles, and obstacles in front of the vehicle, generating visual data for system analysis. Alternatively, it processes images through AI algorithms to provide decision-making basis for autonomous driving or driver assistance systems (ADAS), such as braking and steering commands.

[0064] However, in cold weather, frost and fog condensing on the front windshield 10 inside the vehicle, as well as ice and snow accumulating on the exterior windshield 10, will obstruct the field of vision of the camera device 900, making it impossible for the camera device 900 to clearly detect information such as the road, targets, lane lines, or signs in front of the vehicle.

[0065] refer to Figures 1-3 As shown, the traditional solution involves printing a heating wire 20 on the windshield in the viewing area 200 corresponding to the camera device 900 to remove frost and fog through heating. However, due to the limited diameter of the heating wire 20, the heating power is limited and cannot remove ice and snow. Not only is the defrosting speed slow, but the heating wire 20 also appears in the field of view of the forward-facing camera, affecting perception performance. In addition, direct sunlight on the heating wire 20 will produce glare, affecting the camera's perception performance. Moreover, in low-temperature weather, when the vehicle surface is covered with ice and snow, the preheating function cannot remove the accumulated ice and snow on the windshield.

[0066] This application provides a camera system, including a camera device 900 and a vehicle window glass 10. The camera system is positioned to be aimed at a viewing area 200 and receives light through the viewing area 200. This camera system is applied to a vehicle.

[0067] refer to Figures 1-13 As shown, a glass portion 100 and a transparent heating film 300 are present. The glass portion 100 includes a first glass 110 and a second glass 120, with a receiving space 130 formed between the first glass 110 and the second glass 120. The glass portion 100 also includes a viewing window region 200, which is disposed along the thickness direction through the first glass 110, the second glass 120, and the receiving space 130. The viewing window region 200 is used to receive light information through the camera device 900. The transparent heating film 300 is disposed in the receiving space 130 and covers the viewing window region 200.

[0068] It should be noted that, in addition to the transparent heating film 300, the space 130 may also contain a PVB interlayer (Polyvinyl Butyral), which enhances the impact resistance, sound insulation, and safety of the glass by bonding multiple layers of glass or combining it with other materials. Furthermore, the transparent heating film 300 can be an ITO (Indium Tin Oxide) heating film, deposited on a glass or PET substrate using magnetron sputtering or vacuum deposition processes. Alternatively, the transparent heating film 300 can also be a conductive polymer heating film, such as PEDOT:PSS (Poly(3,4-ethylenedioxythiophene:polystyrene sulfonate)) or other conductive polymers. Any transparent film that can be heated should be within the scope of protection of this application. The viewing window area 200 is the area where the camera device 900 primarily collects light information; external conditions mainly enter the camera device 900 through this area. Of course, the size and shape of this area can vary depending on the vehicle, and this application does not impose any limitations.

[0069] Based on the above configuration, the transparent heating film 300, being film-shaped and covering the viewing window area 200, can heat the entire viewing window area 200 as a whole, preventing any unheated portions of the viewing window area 200 and thus achieving a better heating effect. Furthermore, the transparent heating film 300 can withstand higher power and effectively removes accumulated ice and snow from the glass during preheating. Moreover, the transparent heating film 300, positioned within the receiving space 130, is also protected by the first glass 110 and the second glass 120, preventing damage from external objects and oxidation.

[0070] Because the transparent heating film 300 is transparent, it does not obstruct the field of view of the camera device 900, allowing the camera device 900 to obtain more comprehensive light information and thus perform better data analysis. At the same time, it also avoids glare caused by direct sunlight on the heating wire 20.

[0071] Furthermore, in this application, the transparent heating film 300 is only applied to the viewing area 200. This arrangement minimizes the negative impact of the transparent heating film 300 on the window glass 10 itself. For example, compared to fully laminated glass, this method allows for more PVB layers, increasing the strength between the first glass 110 and the second glass 120. Simultaneously, since the transparent heating film 300 reduces some of the light entering the window, applying it only to the viewing area 200 ensures that other parts of the window glass 10 maintain normal light transmittance. Moreover, because the viewing area 200 is relatively small, the transparent heating film 300 in this area can concentrate its heat, obtaining greater energy and thus achieving a faster melting effect for ice and snow.

[0072] In one embodiment, reference Figures 8-11As shown, the transparent heating film 300 extends beyond the viewing window area 200. The window glass 10 also includes an electrode 400 connected to the side end of the transparent heating film 300 to provide electrical energy to the transparent heating film 300. The electrode 400 is located in the receiving space 130 and outside the viewing window area 200. (Reference) Figure 9 As shown, two electrodes 400 are symmetrically arranged and connected to both ends of the transparent heating film 300, respectively. The transparent heating film 300 is heated by energizing it. Furthermore, the transparent heating film 300 can be square, which facilitates its arrangement and allows for energy transfer between the two electrodes 400.

[0073] Based on the above configuration, the transparent heating film 300 extending outside the viewing window area 200 ensures that the entire viewing window area 200 can be fully heated, thereby guaranteeing the clearing effect of the viewing window area 200. Furthermore, in this embodiment, the electrode 400 is arranged outside the viewing window area 200, which avoids obstruction of the viewing window area 200, thereby enabling the camera device 900 to achieve better light information collection.

[0074] When the shortest distance between the outer edge of the transparent heating film 300 and the viewing area 200 is too large, too much transparent heating film 300 needs to be installed, which will lead to waste of transparent heating film 300, and too much transparent heating film 300 will weaken other performance of the window glass 10. When the shortest distance between the outer edge of the transparent heating film 300 and the viewing area 200 is too small, it cannot effectively clear ice and snow from the edge of the viewing area 200.

[0075] This application sets the shortest distance between the outer edge of the transparent heating film 300 and the viewing window area 200 to be greater than or equal to 10 mm and less than or equal to 20 mm. Within this range, on the one hand, waste of the transparent heating film 300 can be avoided, and the other performance degradation of the vehicle window glass 10 can be prevented. On the other hand, ice and snow at the edge of the window area 200 can be effectively cleared, allowing the camera device 900 to obtain better light information. For example, the shortest distance between the outer edge of the transparent heating film 300 and the viewing window area 200 can be set to 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, or 20 mm.

[0076] In one embodiment, reference Figure 8 As shown, the vehicle window glass 10 also includes a receiving device 500, which is connected to the electrode 400 and is located in the receiving space 130 and outside the viewing window area 200. The receiving device 500 is used to receive external energy.

[0077] By providing a receiving device 500 connected to the electrode 400, the receiving device 500 can be kept within the housing space 130, thereby avoiding damage to the window glass 10 and maintaining the overall integrity of the window glass 10. Furthermore, since the receiving device 500 is located outside the viewing area 200, it avoids obstructing the viewing area 200, thus allowing the camera device 900 to achieve better light information collection.

[0078] In this embodiment, the vehicle window glass 10 also includes a transmitting device (not shown in the figure). The transmitting device is disposed on the side of the second glass 120 away from the receiving space 130, and is located outside the viewing area 200, for providing energy to the receiving device 500. It should be noted that the transmitting device can be directly attached to the side of the second glass 120 away from the receiving space 130, or it can be at a certain distance from the second glass 120. This application does not impose any restrictions, as long as the receiving device 500 can receive sufficient energy.

[0079] Similarly, the transmitter is positioned in conjunction with the receiver 500 to avoid damaging the window glass 10, thus maintaining the overall performance of the window glass 10. Furthermore, the transmitter is located outside the viewing area 200, preventing obstruction of the viewing area 200 and allowing the camera device 900 to achieve better light information collection.

[0080] It should be noted that the aforementioned receiver 500 is installed at the end of the device requiring charging. Its task is to capture energy from the transmitter and convert it back into electrical energy to heat the transparent heating film 300. Similarly, in the electromagnetic induction method, the receiver has a coil that induces a current when exposed to the magnetic field generated by the transmitter. For the resonant coupling method, the receiver is designed to resonate with the transmitter at the same frequency, thereby efficiently capturing energy. The transmitter is the power-providing end, typically connected to a power source. It works by converting electrical energy into some form of energy (such as a magnetic field) and then transmitting it. For wireless charging systems using electromagnetic induction, the transmitter contains a coil that generates a changing magnetic field when current passes through it. In resonant coupling-based systems, the transmitter also has a resonant circuit of a specific frequency to match the receiver for improved efficiency.

[0081] In one embodiment, reference Figure 11 and Figure 12 As shown, the vehicle window glass 10 also includes a wire 600, which is connected to the electrode 400. The second glass 120 is provided with a through hole 700, which is located outside the viewing window area 200. The wire 600 is provided through the through hole 700.

[0082] In this embodiment, energy is input to the transparent heating film 300 through the perforation 700. This makes energy transfer more stable and allows for the transmission of a larger current, resulting in higher heating efficiency of the transparent heating film 300. Furthermore, since the perforation 700 is located outside the viewing window area 200, it avoids obstruction of the viewing window area 200, thereby enabling the camera device 900 to achieve better light information collection.

[0083] In one implementation, refer to Figure 13 As shown, the vehicle window glass 10 also includes an anti-reflective coating 800. The anti-reflective coating 800 is disposed on the side of the first glass 110 and / or the second glass 120 facing away from the receiving space 130, and is used to increase transmitted light and reduce reflected light. It should be noted that the anti-reflective coating (also known as an anti-reflective film or AR coating) is a special optical coating. Its working principle mainly utilizes the principle of optical interference. By adding one or more thin films with specific thicknesses and refractive indices to the surface of optical materials, the light waves reflected from the interfaces of these film layers cancel each other out, thereby reducing reflection and increasing transmittance.

[0084] An anti-reflective coating 800 is provided in the viewing window area 200, which enables the camera device 900 to obtain better light information collection, thereby obtaining clearer image analysis.

[0085] In one embodiment, the antireflective coating 800 extends beyond the viewing window area 200, and the shortest distance between the outer edge of the antireflective coating 800 and the viewing window area 200 is greater than or equal to 10 mm and less than or equal to 20 mm. This arrangement avoids wasting excessive amounts of antireflective coating 800 while ensuring complete coverage of the viewing window area 200. For example, the shortest distance between the outer edge of the antireflective coating 800 and the viewing window area 200 can be set to 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, or 20 mm.

[0086] In one embodiment, this application provides a control method for the entire vehicle. This includes two modes: preheating and normal heating.

[0087] The preheating function needs to meet the following five conditions simultaneously: 1. The usage mode is inactive or convenient mode; 2. The vehicle mode is normal; 3. A remote air conditioning preheating function activation signal is received; 4. An ambient temperature signal is received, and the heating time t1 and heating interval t2 are determined based on the ambient temperature; 5. The time interval since the last heating function activation exceeds t2.

[0088] The heating time t1 and the heat interval time t2 can be determined as follows: when the temperature is less than -30℃, the heating time t1 is 30 min and the heat interval time t2 is 5 min; when the temperature is greater than -30℃ and less than -10℃, the heating time t1 is 20 min and the heat interval time t2 is 10 min; when the temperature is greater than -10℃ and less than 10℃, the heating time t1 is 15 min and the heat interval time t2 is 15 min; when the temperature is greater than 10℃, the heating time t1 is 10 min and the heat interval time t2 is 20 min.

[0089] Preheating can be turned off only if one of the following five conditions is met: 1. The usage mode is not inactive or convenient mode; 2. The vehicle mode is abnormal; 3. A remote air conditioning preheating function shutdown signal is received; 4. Abnormal current or voltage, short circuit / open circuit is detected in the heating system; 5. The heating function duration exceeds t1.

[0090] Normal heating requires the following five conditions to be met simultaneously: 1. The usage mode is driving; 2. The vehicle mode is normal; 3. The camera detects obstruction and receives an obstruction signal for 3 seconds; 4. An ambient temperature signal is received, and the heating time t1 and heating interval t2 are determined based on the ambient temperature; 5. The time interval since the last heating function was activated exceeds t2.

[0091] Similarly, the heating time t1 and the heat interval time t2 are generally determined as follows: when the temperature is less than -30℃, the heating time t1 is 30 min and the heat interval time t2 is 5 min; when the temperature is greater than -30℃ and less than -10℃, the heating time t1 is 20 min and the heat interval time t2 is 10 min; when the temperature is greater than -10℃ and less than 10℃, the heating time t1 is 15 min and the heat interval time t2 is 15 min; when the temperature is greater than 10℃, the heating time t1 is 10 min and the heat interval time t2 is 20 min.

[0092] Normal heating can be turned off only if one of the following five conditions is met: 1. The usage mode is not driving; 2. The vehicle mode is abnormal; 3. The camera does not detect any obstruction and stops sending obstruction signals; 4. Abnormal current or voltage of the heating system is detected, short circuit / open circuit; 5. The heating function lasts for more than t1.

[0093] In addition, a temperature sensor can be installed to detect the temperature of the window glass 10, so as to ensure that the local temperature of the window glass 10 does not exceed 70°C, thereby protecting the window glass 10.

[0094] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A vehicle window glass applied to a vehicle, characterized by, The vehicle window glass includes: The glass section includes a first glass and a second glass, and a receiving space is formed between the first glass and the second glass. The glass section also includes a viewing window area, which is disposed along the thickness direction through the first glass, the second glass and the receiving space. The viewing window area is used to receive light information through the camera device. A transparent heating film is disposed in the receiving space and covers the viewing window area.

2. The vehicle window glass as described in claim 1, characterized in that, The transparent heating film extends beyond the viewing window area. The window glass also includes an electrode connected to the side end of the transparent heating film to provide electrical energy to the transparent heating film. The electrode is located in the receiving space and outside the viewing window area.

3. The vehicle window glass as described in claim 2, characterized in that, The shortest distance between the outer edge of the transparent heating film and the viewing window area is greater than or equal to 10 mm and less than or equal to 20 mm.

4. The vehicle window glass as described in claim 2, characterized in that, The vehicle window glass also includes a receiving device, which is connected to the electrode and is located in the receiving space, outside the viewing window area. The receiving device is used to receive external energy.

5. The vehicle window glass as described in claim 4, characterized in that, The vehicle window also includes a transmitting device, which is disposed on the side of the second glass away from the receiving space and located outside the viewing area, for providing energy to the receiving device.

6. The vehicle window glass as described in claim 2, characterized in that, The window glass also includes a wire connected to the electrode, and the second glass has a perforation located outside the viewing window area, through which the wire passes.

7. The vehicle window glass as described in claim 1, characterized in that, The vehicle window glass also includes an anti-reflective coating, which is disposed on the side of the first glass and / or the second glass away from the receiving space, to increase transmitted light and reduce reflected light.

8. The vehicle window glass as described in claim 7, characterized in that, The antireflective coating extends beyond the viewing window area, and the shortest distance between the outer edge of the antireflective coating and the viewing window area is greater than or equal to 10 mm and less than or equal to 20 mm.

9. A camera system, characterized in that, Includes a camera device and a vehicle window glass as described in any one of claims 1-8; The camera system is positioned to be aimed at the viewing window area and receives light through the viewing window area.

10. A vehicle, characterized in that, Includes the camera system as described in claim 9.